Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 1
Rev. Date: 1/14/2009
HEAT RECOVERY STEAM GENERATORS
PRIMER
An Introductory Specification
Ric Middleton, PE
CONSULTING SERVICES
Houston, TX USA 77375
832-334-6617 Phone
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
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Rev. Date: 1/14/2009
Table of Contents
Section Page
1. Codes & Standards. . . . . . . 3
2. Scope of Suppy & Terminal Points. . . . . 5
3. Owner Supplied Items . . . . . . 14
4. Field Work Required . . . . . . 17
5. System Descriptions . . . . . . 20
6. Shop Assembly / Modular Construction. . . . . 33
7. Testing and Inspection . . . . . . 36
8. Heat Recovery Steam Generator Trim Lists . . . 38
9. Thermal Guarantees and Performance . . . . 54
10. Boiler Water Limits . . . . . . 72
11. Appendix . . . . . . . . 75
Table 1.3 Performance (Gas Turbine Load Cases)
2A.5.1 Natural Gas Chromatograph Analysis
Conventional and Combined Cycle Flow Diagrams
Module Harp Construction
Single Pressure Level and Deaerator
Typical SCR P&ID
HRSG Drawings
Typical HRSG Thermal/Hydraulic Design Output
Typical Referenced Specifications
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
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Codes and Standards
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 4
Rev. Date: 1/14/2009
1.0 Codes and Standards
The Heat Recovery Steam Generator will be designed, manufactured, and tested in accordance
with the latest applicable addendum of the following codes and standards:
ASME Boiler and Pressure Vessel Code, Section I, VIII, IX, "Power Boilers"
American National Standards Institute (ANSI)
American Society for Testing and Materials (ASTM)
Environmental Protection Agency (EPA)
Institute of Electrical and Electronic Engineers (IEEE)
American Iron and Steel Institute, AISI
National Electrical Manufacturers Association (NEMA)
National Fire Protection Association (NFPA)
Occupational Safety & Health Act (OSHA)
Scientific Apparatus Manufacturers Association (SAMA)
Instrument Society of America (ISA)
Boiler Water Requirements and Associated Steam Purity for Commercial Boilers, American
Boiler Manufacturers Association (ABMA)
HRSG Performance Testing (ANSI/ASME PTC 4.4)
Steel Structures Painting Council (SSPC)
National Electric Code (NEC)
American Welding Society (AWS)
American Institute of Steel Construction (AISC)
Uniform Building Code (UBC)
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
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Rev. Date: 1/14/2009
Scope of Suppy & Terminal Points
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 6
Rev. Date: 1/14/2009
2.0 Scope of Supply and Terminal Points
The vendor shall furnish two (2) natural circulation, modular, finned water tube, heat recovery
steam generators (HRSGs). The heat recovery steam generators shall consist of the following
scope of supply:
HRSG Scope of Supply
By HRSG
Vendor
By
Others
NOT
INCL.
Item Description
I HRSG PROPER
1. Expansion Joint at HRSG Inlet X
2. Inlet Duct X
3. Inlet Silencer X
4. HP Superheaters X
5. HP Attemperator X
6. Reheater X
7. Reheater Attemperator X
8. HP Evaporator X
9. HP Economizers X
10. IP Superheater X
11. IP Evaporator X
12. IP Economizer X
13. LP Superheater X
14. LP Evaporator X
15. LP Economizer X
16. LP Integral Deaerator X
17. HP Steam Drum, Internals, & Support Structure X
18. HP Steam Drum Enclosure X
19. HP Drum Corrosion Allowance (1/8”) X
20. IP Steam Drum, Internals, & Support Structure X
21. IP Steam Drum Enclosure X
22. IP Drum Corrosion Allowance (1/8”) X
23. LP Steam Drum, Internals, & Support Structure X
24. LP Steam Drum Enclosure X
25. LP Drum Corrosion Allowance (1/8”) X
26. LP Economizer Bypass Valve & Bypass Piping
For Operation With CT Fired On Distillate Fuel.
X
27. Interconnecting Piping Between HRSG Tube
Bundles
X
28. Trim and Trim Piping (Valves, PRV’s, Level
Gauges etc.)
X
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Document Title: HRSG Primer and Design Overview
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Rev. Date: 1/14/2009
HRSG Scope of Supply
By HRSG
Vendor
By
Others
NOT
INCL.
29. Controls (DCS) X
30. Instrument Wiring To Junction Boxes and Tubing X
31. Pressure Safety Relief Valves & Drains X
32. PSV Silencers & Support Structure X
33. PSV Drip Pan Elbows & Vent Stacks X
34. Start-up Vent Valves & Drains X
35. Start-up Vent Valve Silencers Support Structure X
36. Sootblowers/Waterwash System Inc. Controls X
37. Wallboxes & Bearings for Sootblowers, If Req’d X
38. Access lanes for Sootblowers X
39. Field Insulation - Ductwork/Casing and Joints X
40. Steam Drum Insulation and Lagging X
41. Deaerator Insulation and Lagging X
42. Piping Insulation and Lagging X
43. Platforms, Ladders, and Stairs Per G/A Drawings X
44. Outlet Expansion Joint, - HRSG to Stack X
II. EXHAUST BYPASS SYSTEM X
III. DUCT BURNER SYSTEM
1. Duct Burner - Natural Gas X
2. Local Control Panel X
3. Fuel Control Skid X
4. Burner Management System X
5. Fuel Pressure Reducing Station X
6. Fuel Delivery System (to skid) X
7. Piping From Fuel Control Skid to Burner X
8. Burner Outlet Duct and Insulation System X
9. TA Supervision (5 days) X
IV. BLOWDOWN AND ASSOC. EQUIPMENT
1. Blowdown Tank X
2. Insulation and Lagging for BD Tank X
3. BD Tank Trim and Trim Piping X
4. Piping between HRSG and Tank X
5. Piping between Tanks and Sewer X
6. Tank Personnel Protection X
7. Piping Insulation and Lagging X
8. Cascading Blowdown System (Flash Tank)
(Including Valves, Piping, …, etc.)
X
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Rev. Date: 1/14/2009
HRSG Scope of Supply
By HRSG
Vendor
By
Others
NOT
INCL.
V. BOILER FEED SYSTEM
1. Feedwater and Condensate Pumps X
2. Piping from FW Pump Outlets to Economizer
Inlets
X
3. Piping from LP Storage Drum to HP & IP FW
Pumps
X
4. Feedwater Regulating Valves X
VI. CO CATALYST SYSTEM
1. CO Spool Duct (Replaced with Future CO Duct) X
VII. SCR CATALYST SYSTEM (NOx)
1. Inlet and Outlet Transition Ducts As Required X
2. Catalyst Housing X
3. Internal Structure for Catalyst X
4. Catalyst X
5. Dilution Air Fans (DAF) X
6. Monorail and Hoist for Handling Catalyst X
7. Ammonia (NH
3
) Injection Grid (AIG) X
8. Hot Gas Recirculation Flue Gas Piping (if Req’d) X
9. Electrical Heater (If Required) X
10. Anhydrous Ammonia Flow Control Skid X
11. Vaporizers for Anhydrous Ammonia System X
12. Ammonia Storage Tank and Delivery System X
13. Control Logic Diagrams X
14. Local Control Panel X
15. NOx/N03 Analyzers X
16. Piping between AIG & Ammonia Control Skid X
17. Ammonia Area Monitors X
18. SCR Dummy (Spool) Duct X
19. Piping Insulation X
20. TA Supervision (5 days) X
VIII OUTLET STACK & TRANSITION DUCT
1. Outlet Stack and Transition With Sampling
Ports/Platforms
X
2. Personnel Protection Around Stack (Expanded
Metal Barriers)
X
3. Outlet Stack EPA Connections X
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Document Title: HRSG Primer and Design Overview
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HRSG Scope of Supply
By HRSG
Vendor
By
Others
NOT
INCL.
4. Outlet Stack FAA Lighting (If Required) X
5. Outlet Stack Silencer X
6. Outlet Stack Closure Damper With Access
Provisions
X
IX FRESH AIR FIRING SYSTEM X
X MISCELLANEOUS
1. CEM System X
2. Steam Sample Coolers X
3. Freeze Protection (Provisions Only) X
4. Flow Model Test (Seller to Determine) X
5. Start-up Spare Parts X
6. Suggested Spare Parts (2 years) - (List Only) X
7. Training (3 Days In classroom) - 10 Manuals X
8. Erection Technical Assistance X
9. Start-Up Technical Assistance X
10. Performance Testing X
11. External Piping (Outside of Section 1 Code
Requirements From SH Outlets to 50Ft Elevation,
Insulation By Others)
X
12. Instruction/Operation Manuals - 10 Manuals X
13. Freight (FOB Jobsite -Nearest Rail Siding) X
14. Inlet Expansion Joint Acoustical Enclosure X
15. Grit Blasting of Drum Internal Surfaces X
16. HRSG Chemical Cleaning X
17. Special Tools (if required) X
18. Freight From Port of Import to Site, If Applicable X
19. Stainless Steel Drain Pans Below Modules
Downstream of SCR System
X
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Document Title: HRSG Primer and Design Overview
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HRSG Terminal Points
Ductwork
Outlet flange of the GT outlet expansion joint. (Expansion joint usually in HRSG Scope)
Outlet of the HRSG stack.
Test connections with pipe caps in the inlet duct, HRSG casing and outlet stack.
Flanged connections for the HRSG emissions monitoring ports in the ductwork and stack.
LP Water and Steam Large Bore Piping Interfaces
Inlet connection of the water preheater inlet piping. Connection shall terminate
approximately 10 feet above grade located on the same side as the condensate pump.
Outlet connection of the LP superheater piping. Connection shall terminate at a 50 foot
elevation as shown on the General Arrangement Drawings.
Inlet steam connection from the LP kettle boiler (Supplied by Others). Connection shall
terminate 10 feet below the LP steam drum.
Boiler Feed Pump
Outlet connection to the HP & IP pump suction piping. Connection shall terminate
approximately 10 feet below the LP storage drum located on the same side as the
boiler feedwater pump.
RH Steam Large Bore Piping Interfaces
Inlet connection of the cold reheat piping. Connection shall terminate at a 50 foot elevation
as shown on the General Arrangement Drawings.
Outlet connection of the hot reheat piping. Connection shall terminate at a 50 foot elevation
as shown on the General Arrangement Drawings.
HP Water and Steam Large Bore Piping Interfaces
Inlet connection of the HP economizer inlet piping. Connection shall terminate
approximately 20 feet above grade located on the same side as the HP boiler feedwater
pump.
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Outlet connection of the HP superheater piping. Connection shall terminate at a 50 foot
elevation as shown on the General Arrangement Drawings.
IP Water and Steam Large Bore Piping Interfaces
Inlet connection of the IP economizer inlet piping. Connection shall terminate
approximately 20 feet above grade located on the same side as the IP boiler feedwater pump.
Outlet connection of the IP superheater piping. Connection shall terminate atop the unit at
the cold reheat interface.
Safety Valve Vent Stacks/Silencers
Outlet connection of all drum and main steam safety valve/vent stack silencers. Connections
shall terminate 8 feet above the platform elevation.
Vent Valves
Outlet connection of second valve for all vents. All vent lines shall be double valved with
the first valve close connected to the source and with the second valve terminating 8 feet
above the platform elevation. Individual economizer module vents may be vented through
the drums.
Drain Valves-Drum Mounted Instrumentation
Outlet connection of second valve for all drains. All drum mounted instrumentation drain
valves shall be close coupled at the drum. The drain piping from all drum mounted
instrumentation shall then be routed to a common drain (open funnel) pipe (approx. 4 to 6"
dia) which shall terminate 5 feet above grade.
Drain Valves-HRSG
Outlet connection of second valve for all drains. All drain lines shall be double valved with
the first valve close connected to the source and the second valve terminating approx. 5 feet
above grade located on a common side of the HRSG unless otherwise noted.
HP/RH Attemperator
Inlet connection of automatic block valve for HP superheater and reheater attemperators.
Connections shall terminate close connected to the source.
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Document Title: HRSG Primer and Design Overview
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Steam/Water Sampling
Outlet connection of second valve for the steam and water sampling isolation valves. All
sampling connections shall be double valved and terminate close connected to the source.
Continuous Blowdown
Outlet connection of second valve for continuous blowdown valves. Connection shall
terminate at the bottom of the HRSG near grade.
Intermittent Blowdown
Outlet connection of second valve for all intermittent blowdown valves. Intermittent
blowdown lines shall be double valved with both valves close connected and terminating
approximately 3 feet above grade terminating outside the HRSG casing.
Chemical feed
Inlet connection of all chemical feed check valves. All chemical feed connections shall be
double valved and terminate close connected to the steam drums.
Nitrogen Blanketing
Inlet connection of all nitrogen feed check valves. All nitrogen feed connections shall be
double valved and terminate close connected to the steam drums.
Instruments Test Connections
Outlet connection of all instrumentation test connection isolation valves. Test connections
shall be close connected to the source
Instrument Connections
All boiler instrumentation shall terminate junction boxes.
All instrument air connections shall terminate at each individual user.
All motors provided shall terminate at motor terminals.
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Duct Burner
Inlet flange for the main gas and pilot gas headers located on the burner frame. Connection
shall be located approximately 5 feet above grade.
Inlet flange for the scanner cooling air header on the burner. Connection shall be located
approximately 5 feet above grade.
Inlet and outlet flanges for the main gas on the burner skid.
Outlet flanges for the pilot gas located on the burner skid.
Inlet flange for instrument air located on the burner skid.
Outlet flange for the scanner cooling fans on the burner skid or scanner cooling blower skid.
Terminal strips in burner management panel and pipe rack junction box.
SCR System
Inlet flanges for ammonia on the flow control skid.
Inlet flange for instrument and service air on the flow control skid.
Terminal strip in junction box located on flow control skid.
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Owner Supplied Items
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
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Rev. Date: 1/14/2009
3.0 Owner Supplied Items ( Owner Erection )
1. Foundation design and installation as required for installation of the HRSG system
(including ducts and stack) including grout, anchor bolts, and nuts.
2. All utilities required during the installation and commissioning of the boiler.
3. Installation labor and supervision for the complete erection of the boiler system.
4. Hydrostatic test of the boiler after erection.
5. Chemical cleaning of the boiler after erection.
6. All necessary controls, field instruments, hardware, piping,…,etc., required to complete
the system and not supplied with the boiler.
7. All electrical wiring, conduit, cable trays, etc., required to tie in the system. All wiring
shall be to the instruments.
8. All piping required for completion of installation outside of the scope of the boiler.
9. All motor starters and disconnects for all motors including power wiring to motors.
(Excepting starters for dilution air fan motors which are included per the specifications)
10. All external insulation with weather proof covering for external piping, steam drum,
deaerator, and personnel protection up to HRSG Vendor terminal points.
11. Final field painting.
12. HRSG feedwater pumps, condensate pumps, and piping.
13. Chemical pumps and piping.
14. Complete Turbine bypass systems.
15. Blowdown tanks, if required.
16. Kettle Boilers ( Rotor Air Coolers ) and all associated piping from LP steam Drum to
Kettle Boilers.
17. Emissions monitoring equipment (if required).
18. Piping to connect the duct burner flow control skid to the HRSG.
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19. Ammonia storage tanks, pumps, pumping skid, and piping to flow control skid.
20. Piping to connect the ammonia flow control skid to the HRSG.
21. Off-loading of equipment from truck and site deliveries.
22. All piping not included with the HRSG.
23. Addition of fans (if required) to provide the minimum flow requirements of NFPA prior
to combustion turbine ignition.
24. Feedwater regulating valves and bypass valves.
Copyright 2009 RIC MIDDLETON, PE
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Field Work Required
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
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Rev. Date: 1/14/2009
4.0 Field Work Required
Installation of grouting for base plates furnished by HRSG Vendor for boiler sections and
duct. Foundation, anchor bolts, grout, and nuts are by others.
Installation of main support steel columns, main beams, and heating surface top support
members.
Installation of HRSG casing.
Installation of duct burner and associated equipment.
Installation of the CO and SCR housings and internals and duct external equipment.
Installation of CO and SCR Catalyst.
Installation of module harps and crossover piping between module headers.
Installation of additional collector headers and interconnecting piping, if required.
Installation of the steam drums and deaerator.
Installation of miscellaneous vents and drains.
Installation of boiler trim piping, valves, fittings, and instrumentation.
Installation of outlet duct and stack.
Installation of inlet expansion joint and round to square duct transition piece. The expansion
joint and duct transition piece is not in HRSG Vendor’s scope.
Installation of HRSG inlet duct.
Insulating of hot surfaces for thermal barrier and personnel protection including external
piping, steam drums, deaerator, EPA stack test port, etc.
Field finish painting of structural components, boiler casing, ducts, stack, and all other
unfinished components.
Installation of all inter-connecting piping not included with the HRSG.
Installation of platforms, ladders, and stairways.
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Electrical/Air tie-ins as required for controls, motors, operators, etc., to complete the system.
Hydro test pressure parts.
* Module harp is shop assembled heating surface module comprising two headers with 1-3 rows
of tubes welded to the headers and shop hydrotested prior to shipment to the jobsite.
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
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System Descriptions
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Document Title: HRSG Primer and Design Overview
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Rev. Date: 1/14/2009
5.0 System Descriptions
Duct Burner
The HRSG Vendor proposes to furnish the following described duct burner system as
manufactured by either Coen, Forney, or equal.
Natural Gas Fired Duct Burner Assembly
The burner will consist of horizontal elements designed for a maximum heat release of 187
MMBtu/hr. (LHV). The elements will be housed in a rigid steel frame shop installed with
ceramic fiber and lined with stainless steel.
The burner frame assembly will include the following components:
Main gas piping header pre-assembled on burner frame terminating with one inlet flange
Pilot gas piping header pre-assembled on burner frame terminating with one inlet flange
Scanner cooling air distribution headers pre-assembled on burner frame terminating with one
inlet flange
Interruptible spark ignited gas pilots.
Pilot ignition transformers
Two ( 2) self checking Flame scanners per burner element.
Piping Rack Assembly
The rack assembly will consist of the following components mounted to a rigid steel frame with
all electrical devices pre-wired to a NEMA 4 electrical enclosure:
Pilot piping train with an inlet strainer, pressure regulator, two (2) safety shut-off valves,
vent valves, and gas plug cock.
Main fuel piping train with a one (1) flow control valve, one (1) gas plug cock, two (2)
Pneumatic safety shut-off valves and one (1) pneumatically actuated safety valve.
One (1) set of pressure gauges for main gas supply pressure, main gas header pressure, pilot
gas pressure, scanner cooling air pressure and instrument air pressure.
Flame Safety System
The flame safety system is designed for automatic-manual supervisory startup from the NEMA 4
control panel. The system includes all components as recommended by NFPA 8501. The flame
safety control enclosure will have the necessary indicating lights, switches, pushbuttons, meters,
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and annunciators mounted on the front panel. Safety interlocks will be included to insure the
proper operation of the system.
Scanner Cooling Air Blowers
Two (2) scanner cooling air blowers will be furnished complete with drive motors, air filters, air
check valves, and flex connectors. The blowers and their accessories will be mounted on a
common skid and piped to a common outlet. Motor starters are not included.
Burner Outlet Duct
The Company will design and furnish the outlet duct generally as shown on the proposal
drawing. The duct will be fabricated from 1/4" A-36 carbon steel plate and reinforced with
structural steel members seal welded to casing thus providing an all-welded construction,
designed for 20" w.g. internal pressure. The duct will have an 18" x 24" access door, test
connections as required.
The duct shall be provided with shop installed internal insulation covered by a stainless steel
liner. The ductwork shall be shipped in "donuts", "C-sections" or "flat panels" based on final
shipping clearances for unescorted truck shipments.
Observation Ports
The burner outlet duct will be furnished with observation ports downstream of the burner. The
ports will be located on two sides of the duct and will be provided with platforms and stairs for
accessing observation ports and burner scanners.
Inlet Ducts
The HRSG Vendor will design and furnish the gas inlet duct generally as shown on the proposal
drawing. The duct will be fabricated from 1/4" A-36 carbon steel plate and reinforced with
structural steel members seal welded to casing thus providing an all-welded construction,
designed for 20" w.g. internal pressure. The duct will have an 18"x24" access door, test
connections as required, and drain connections.
The inlet duct shall be provided with shop installed internal insulation covered by a stainless
steel liner. The ductwork shall be shipped in "donuts" or "C-sections" or "flat panels" based on
final shipping clearances for unescorted truck shipments.
The inlet duct will be furnished without a Turbine Exhaust duct Expansion joint which will be
provided by the Gas Turbine supplier. The HRSG Vendor will provide an inlet flange on the
HRSG inlet duct with inside flange dimensions to match CTG outlet flange dimensions.
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
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Superheater Design and Construction
Superheaters will be constructed of modules consisting of finned tubes welded to top and bottom
headers, one or two rows per module, designed for single pass flow on the gas side and multipass
flow on the tube side. Interconnection of modules will be by multiple 180 bent tubes of similar
material as header.
Sets of modules will be placed side-by-side in order to minimize draft loss. Steam shall be fed to
each set for parallel flow and will be manifolded at the outlet.
The superheater modules shall be equipped with low point drains for a "fully drainable" design.
The superheater outlet shall be equipped with a vent for start-up.
The inlet and outlet piping shall be selected based on steam design pressure and design
temperature. The outlet shall be terminated with a single, butt-weld connection.
Reheater Design and Construction
The reheater will be constructed of modules consisting of finned tubes welded to top and bottom
headers, two rows per module, designed for single pass flow on the gas side and single pass flow
on the tube side. Interconnection of modules will be by multiple 180 bent tubes of similar
material as header.
The reheater modules shall be equipped with low point drains for a "fully drainable" design. The
reheater outlet shall be equipped with a vent for start-up.
The inlet and outlet piping shall be selected based on steam design pressure and design
temperature. The outlet shall be terminated with a single, butt-weld connection.
Attemperators
Spray attemperators shall be utilized to control the final steam temperature as required. For this
application, interstage spray attemperators shall be used for the high pressure superheater and
reheater. The attemperator shall consist of a spray nozzle with a separate control valve as
described in the HRSG Trim & Instrument list.
The attemperation piping shall be furnished and will be designed with an internal sleeve
downstream of the spray nozzle to protect against thermal shock.
Evaporators
The evaporators will be constructed of modules consisting of finned tubes welded into top and
bottom headers, two or three rows per module harp. The drum water is fed to the bottom header
through the downcomer, lower feeder header, and feeder tubes. The steam/water mixture
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produced in each module is piped to the steam drum by the riser tubes. The downcomer, feeder
header, feeder tubes, and riser tubes are all designed to ensure proper circulation in each module.
Steam Drums
The steam drum will be of fusion welded construction, made from 70,000 lbs/sq. in. tensile
strength, ASME Specification No. SA-516, Gr. 70 or SA-299. Drum heads will be
hemispherical or elliptical. Each head will have a forged steel hinged manway with bolts,
arches, and two (2) sets of gaskets (one spare).
The HP, IP, and LP drums are furnished with stub tube connections for riser tubes & superheater
feeder tube connections. Riser tubes for the LP system will be fabricated from SA-213 T-11 or
T-22 material. The HRSG Vendor shall provide a system of shop installed steam purification
equipment. Drum internals for superheated steam will consist of removable baffles, centrifugal
separators and final scrubbers. All internals will be constructed of carbon steel. For pressure
levels which supply saturated steam to a deaerator or other process, the drum internals will
consist of baffles and a dry box.
Deaerator
The HRSG Vendor shall supply an integral deaerator to be mounted atop the LP steam drum.
The deaerator shall be designed by Sterling, Crane Cochrane, Kansas City Heater, or customer
approved equal. The deaerator shall be designed to reduce the oxygen content of the feedwater
to .005 ml/l by volume. Deaerator tray supports, baffles, impingement plates, and tray enclosure
will be fabricated from 304L stainless steel materials. The spray nozzles shall be made from 316
stainless steel. The deaerator trays will be 430 stainless steel. the outer shell will be SA-516 Gr.
70 material. All internals will be factory installed.
Economizers
The economizers will be constructed of modules, consisting of finned tubes welded to top and
bottom headers, two or three rows per module, designed for single pass flow on the gas side and
multipass flow on the tube side. For the proposed double wide HRSG, sets of modules will be
arranged side-by-side to provide greater gas side flow area and minimize draft loss.
The economizer modules shall be equipped with high point, 3/4" vents, and low point, 1" drains
for a "fully drainable" design. The modules shall be interconnecting with multiple 180 bent
tubes of similar material as tubes. The inlet to the economizers shall terminate with a single butt-
weld connection.
Interconnecting Piping
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All piping required to interconnect the HRSG sections shall be supplied. All piping shall be
provided with required supports. All included small bore pipe 2" and smaller shall be provided
in random lengths for field installation.
Outlet Stack
The HRSG Vendor will furnish an integral 19’-0” inside diameter outlet stack terminating
approximately 126 ft. from grade. The stack will be fabricated from 1/4" min. thick A-36 carbon
steel plate with exterior steel seal welded to the last HRSG module boxes. The stack will be
equipped with an 18"x24" access door, the required EPA test connections, access platforms and
ladders, expanded metal personnel protection at grade and at observation deck, and surface
preparation and prime painting as specified.
HRSG Casing
The HRSG casing shall be constructed of 1/4", A-36 carbon steel casing externally reinforced
with structural steel. All structural steel shall be seal welded to the casing to prevent corrosion
behind the structurals. The casing shall be designed for an internal pressure +20" w.c. The
casing shall be internally lined with blanket insulation covered by a stainless steel liner. In areas
not directly in the gas path (top and bottom casing), expanded metal or equal shall be utilized.
Access Lanes and Doors
The HRSG Vendor shall furnish a suitable number of access lanes between appropriate tube
banks of the boiler, superheater, and economizer sections. Each lane shall be equipped with an
18"x24" cast iron access manway. Access lanes downstream of the SCR system shall be
furnished with an access clearance dimension of 30" minimum.
Access doors are provided on both sides of the units in the area of the heat transfer surfaces.
Access doors are provided on only one side of the unit in the inlet duct, stack and spool pieces.
Platforms, Ladders, and Stairways
The HRSG Vendor will design and furnish a system of galvanized platforms, grating, ladders,
and stairway generally as shown on the proposal drawing for access to the boilers and steam
drums. The platforms will be of the open grid type with pipe handrails. The ladders will be
equipped with safety cages. All platforms, ladders, and stairways shall comply with OSHA
Regulations. Weld clips for platforms shall be field installed to ensure proper fit-up.
Painting (Shop Coat)
The HRSG Vendor shall sandblast (SSPC-SP6) and paint all ductwork / module boxes with one
coat of Valspar Uni-Pak Inorganic Zinc Primer. Major field weld joints shall be masked off and
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 26
Rev. Date: 1/14/2009
provided unpainted. Masking shall be removed prior to welding. Small areas, i.e., for weld
clips, shall be painted. Paint shall be removed by installer prior to welding.
A detailed list of the equipment with sandblast requirements and coating is as follows:
Equipment Sandblast Coating
HRSG Inlet Duct SSPC-SP-6 1 Coat of Primer
HRSG Module Boxes SSPC-SP-6 1 Coat of Primer
HRSG Steam Drums SSPC-SP-6 1 Coat of Carboline Rustbond
HB or equal
HRSG Platform Grating SSPC-SP-6 Galvanized
Stairs & Ladders
HRSG Platforms Handrails SSPC-SP-6 Galvanized
HRSG Platform Support Steel SSPC-SP-6 Galvanized
CO/SCR Converter Housing SSPC-SP-6 1 Coat Primer
Misc. Support Steel SSPC-SP-6 1 Coat Primer
HRSG Major Piping Spool SSPC-SP-6 1 Coat of Carboline Rustbond
HB or equal
HRSG Outlet Stack (Exterior) SSPC-SP-6 1 Coat Primer
HRSG Outlet Stack (Interior) SSPC-SP-6 1 Coat CZ-11
Stack Corrosion Protection
Insulation and Liner
All internal insulation shall be designed to provide a casing surface temperature of 140F based
on a 100F ambient and a 5 MPH wind. Selected small localized areas can be expected to
exceed the design skin temperature requirement. These small areas would include casing test or
instrumentation connections, support attachment points for flow distribution devices and similar
areas. The Vendor’s HRSG design will minimize on a practical basis the skin temperature
excursion.
HRSGs that are "walled in," should be provided with fresh air to maintain the required ambient.
The air must be provided at, or very near, the ground level so that the bottom of the unit has
ample fresh air to maintain natural convection currents and does not become a region of high
temperature stagnant air with a resulting high surface temperature. Insulation design data is
included in the Technical Data section of this proposal.
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 27
Rev. Date: 1/14/2009
High Pressure Steam Drum
Operating Pressure 1620 PSIG
Design Pressure 2300 PSIG
Drum I.D. 72 in.
Shell Length 40’-0”
Plate Material SA-299
Plate Thickness (Estimated) 5.125"
Drum Heads Hemi-spherical
No. Manholes 2
Size of Manholes 14" x 18"
Normal Water Level 4 (in. above CL of Drum)
High Water Level 13(in. above NWL)
Low Water Cutoff 28 (in. below NWL)
Drum Storage Time 5.5 Minutes (min.) (from burner trip to low water
cutoff based on max. unfired steam flow
Internals Centrifugal Separators and Chevron Scrubbers
Intermediate Pressure Steam Drum
Operating Pressure 390 PSIG
Design Pressure 650 PSIG
Drum I.D. 54 in.
Shell Length 40’-0”
Plate Material SA-516 Gr. 70
Plate Thickness (Estimated) 1.125"
Drum Heads Hemi-Ellipsoidal
No. Manholes 2
Size of Manholes 14" x 18"
Normal Water Level zero (in. below CL of Drum)
High Water Level 7 (in. above NWL)
Low Water Cutoff 19 (in. below NWL)
Drum Storage Time 8.3 Minutes (min.) (from normal water level to dry
Internals Centrifugal Separators and Chevron Scrubbers
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 28
Rev. Date: 1/14/2009
Low Pressure Steam Drum
Operating Pressure 72 PSIG
Design Pressure 150 PSIG
Drum I.D. 84 in.
Shell Length 40’-0”
Plate Material SA-516 Gr. 70
Plate Thickness (Estimated) .625"
Drum Heads Hemi-ellipsoidal
No. Manholes 2
Size of Manholes 14" x 18"
Normal Water Level 16.8 (in. below CL of Drum)
High Water Level 23 (in. above NWL)
Low Water Cutoff 34 (in. below NWL)
Drum Storage Time 5.3 Minutes (min.) (from normal water level to dry)
Internals Baffles and dry pipe.
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 29
Rev. Date: 1/14/2009
SCR System
The HRSG Vendor proposes to furnish the following described SCR system as manufactured by
either Mitsubishi, Peerless, or equal.
The SCR scope of supply provided by The HRSG Vendor is detailed below:
SCR Catalyst capable of reducing NOx as shown on the guarantee page.
Catalyst housing and internal supports.
Inlet and outlet transition ducts, as required.
Ammonia flow control skid complete with accessories as defined below.
Ammonia injection grid.
Ammonia distribution header adjacent to the ammonia injection grid including flow control
dampers, flow orifices, and manometers.
Interconnecting piping between the distribution header and the AIG connections.
Distribution header will be located at the base of the HRSG.
Catalyst loading doors.
Instrumentation as shown on the SCR P&ID.
Used catalyst disposal after receipt of the catalyst at the manufacturing plant.
SCR Catalyst emission is guaranteed for 36 months from date of first use but no later than 42
months after delivery of the catalyst to the jobsite.
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 30
Rev. Date: 1/14/2009
Ammonia Flow Control Skid
The ammonia flow skid will include the following equipment:
Ammonia vaporizer with air atomizing nozzle.
Hot gas piping and dampers.
2 x 100% dilution air fans with motors with motor starters.
Flow orifices and transmitter for aqueous ammonia flow and dilution gas flow.
Aqueous ammonia flow control valves.
Shut-off valves with solenoid valves for the aqueous ammonia and atomizing air.
Local pressure and temperature gauges.
Pressure switches for atomizing air.
Electrical terminal point junction box.
Air conduit piping.
Aqueous ammonia piping and valves.
Atomizing air piping and valve.
NOTE: Interconnecting HRSG piping will be routed so that no interference’s will be present for
catalyst loading.
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 31
Rev. Date: 1/14/2009
CO Catalyst
The HRSG Vendor proposes to furnish the following described CO system as manufactured by
Engelhard, Johnson Mathey or equal.
The scope of supply for the CO catalyst system consist of the following:
CO Catalyst
Catalyst housing and internal supports
Inlet and outlet transition ducts, as required
Catalyst loading doors
Used catalyst disposal after receipt at the manufacturing plant
The catalyst's emissions guarantee is based upon a period of 36 months after the date of the first
use, but no later than 42 months after delivery of the catalyst to the jobsite. Poisons which would
void or alter this guarantee are phosphorus, zinc, lead, vanadium, chlorine, silicon, and arsenic.
Water Wash Hoppers
The HRSG Vendor will furnish water wash drain pans in module boxes downstream of the SCR
converter.
The water wash pans will be fabricated from 16 Ga. Type 304SS plate. Water wash pans are
located below the HRSG heating surface and are designed to protect the bottom casing
insulation. Water wash pans are furnished with one 3" capped pipe connection, which terminates
below the bottom casing.
HRSG Outlet Expansion Joint Safety Shroud
The HRSG Vendor will provide a 10 Ga. Safety shroud on the sides of the HRSG outlet
expansion joint.
SafetyValve and Superheater Vent Silencers
The HRSG Vendor shall furnish silencers and interconnecting piping for the safety valves and
superheater vent valves. The silencers shall be designed to reduce the noise level at 3 ft. from
the silencer outlet to a maximum of 103 dBA at 3 ft. from the silencer outlet.
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 32
Rev. Date: 1/14/2009
Allowable Loads (On Piping)
It is The HRSG Vendor’s standard practice to design based on no nozzle loads being imposed on
connections by customers piping. The HRSG Vendor will investigate specific loads requested
and advise of their acceptability.
Some customers have requested what constitutes a reasonable load that could be imposed. It is
noted that our position of acceptance of loads is unchanged and the following is a guide only of
reasonable loads.
NOZZLE SIZE
(I. P. S.)
MAX. FORCE IN
ONE DIRECTION
Fx, Fy, or Fz
MAX. RESULTANT
FORCE
(Fx
2
+ Fy
2
+ Fz
2
)
1/2
MAX. RESULTANT
MOMENT
(Mx
2
+ My
2
+ Mz
2
)
1/2
4 in 600 lbf 800 lbf 2000 ft - lb
6 in 900 lbf 1200 lbf 5300 ft - lb
8 in 1200 lbf 1600 lbf 10500 ft - lb
10 in 1500 lbf 2000 lbf 18600 ft - lb
12 in 1800 lbf 2400 lbf 27300 ft - lb
14 in 2100 lbf 2800 lbf 33200 ft - lb
16 in 2400 lbf 3200 lbf 43800 ft - lb
18 in 2700 lbf 3600 lbf 55900 ft - lb
20 in 3000 lbf 4000 lbf 69400 ft - lb
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 33
Rev. Date: 1/14/2009
Shop Assembly / Modular Construction
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 34
Rev. Date: 1/14/2009
6.0 Shop Assembly / Modular Construction
The HRSG Vendor proposes a modular construction design for the HRSG to minimize the field
erection time.
The modular construction consists of the following:
Inlet Duct - Inlet ducts are shipped in “flat panels” and/or "C” sections as determined by final
shipping clearances for unescorted truck shipments to the jobsite. Internal insulation and
stainless steel liner at the field joints must be installed in the field. These field joints are
furnished with 2” sky climber ports in the top panels of the inlet duct for use during construction.
Module Harps - The heating surface consists of the standard “module harp” design. Each
“module harp” consists of two or three rows of tubes with top and bottom headers. The tubes are
welded to the headers using full strength welds.
Module Bundles – Assemblies of two or more module harps with interconnecting piping
installed. Limited structural members are included for bundle support during shipment and for
permanent installation. Top casing and penetrations are sometimes included. Maximum
shipping dimensions and weights are approached.
Module Boxes – Module Bundles with HRSG outer casing and support steel installed.
Additional support steel is required for shipment and must be removed prior to final assembly.
Nearly all internal and interconnecting piping is installed. Module Boxes represent the
maximum degree of shop assembly.
Steam Drum - the internal surface of the drums are grit blasted prior to installation of internals.
Steam drums are shipped with shop installed internals and riser tube stubs.
Casing - Casings will be constructed of ¼ inch, minimum, A-36 carbon steel plate externally
reinforced with structural steel stiffeners. All stiffeners will be seal welded to the casing to
prevent corrosion behind the structurals. The casings and ductwork will be designed for an
internal pressure of +/- 20 in. w.c.
All casings will be internally lined with blanket insulation covered by 16 Ga., minimum, 409
stainless steel liner panels, held in place by 3/8” diameter studs. In areas not directly in the gas
path (top and bottom casing), expanded metal, or equal, will be utilized to support and retain the
insulation. Stainless steel bellows seals will be provided where piping or support rods penetrate
the casing. Casing drains will be furnished. Drain piping will terminate in convenient collection
points at the side of the unit.
Support Steel - HRGS main support steel, columns, beams and baseplates will be carbon steel to
AISC requirements. Base plates will have lateral expansion provisions where required. All
pressure part heating surface is top supported from adjustable support rods with clevises, which
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 35
Rev. Date: 1/14/2009
connect between intermediate top steel members and are pinned to support lugs on the module
harp upper headers.
Platforms, Ladders, and Stairs - Platforms, ladders and stairs will be assembled into sections (as
large as practical) as determined by final shipping clearance for unescorted truck shipments to
the job site. Platform grating will be shop installed. Typical sizes for these items are as follows:
Platform section with grating attached: 8’0” wide (max.) x 20’ long.
Handrails with toe plates attached: 20’ long
Stair stringer assemblies with steps shop installed
Ladders: 20’ long
Stack - The stack and stack inlet breaching will be fabricated in sections as determined by
shipping clearances for unescorted truck shipments to the jobsite.
Large Bore Piping Spools (2-1/2” & Larger) - Large bore piping spools will be shop assembled
in sections as follows:
Superheater & Economizer Inlet & Outlet Headers - All inlet and outlet headers will have
shop installed stubs to connect the header to the HRSG. The ends of the stubs will be
beveled and coated with an anti-corrosion material. For single wide units, the headers will be
shipped in one piece.
For double and triple wide units, the headers will be shipped in two pieces. One piece will be
furnished with the end beveled and coated. The other piece will be shipped with extra
material for field cutting as required.
Interconnecting Piping & Attemperator Loops - Interconnecting piping and attemperator
loops will be provided in spools with extra material on one end to allow for field fit-up.
Large Bore Valves - All steam outlet large bore valves shall be field installed. Feedwater
control valve stations shall have all valves shop assembled.
Isometric drawings of each piping assembly will be provided.
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 36
Rev. Date: 1/14/2009
Testing and Inspection
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 37
Rev. Date: 1/14/2009
7.0 Testing and Inspection
Testing During Fabrication
Module Harp Assembly Non-ASME stamp hydrostatic test of each module harp
Steam Drums 100% radiography of all seam and circumferential welds
Downcomer & Feeder
Header
100% radiography of all seam and circumferential welds as
required by ASME Code
Butt Welds 100% radiography of all butt welds
Inspection and Shop Certificates
The Purchaser has the right to inspect the module boiler and parts thereof during fabrication to
insure the properly prepared materials in accordance with the proposal and to assure that proper
fabrication procedures are used.
Certificates of shop inspection written by Commercial Union Insurance Co. and Manufacturer's
ASME Code Data Sheet shall be furnished for the heat recovery boiler system.
All Section I and Section VIII vessels will be stamped with a NBBI number as required by the
ASME and local codes.
The HRSG Vendor shall submit a fabrication schedule to permit the Purchaser to select suitable
items for inspection and shall give at least one week's notice before factory tests are to be made.
Flow Model Testing
The flow model test will be conducted on a 1/12 scale model of the HRSG and inlet and outlet
duct between The HRSG Vendor terminal points.
The owner shall furnish a scale model of the gas turbine outlet and provide the gas velocity
profile and the angle of rotation of the exhaust gas at the inlet terminal point.
This option includes a flow model test procedure, draft report, and final report
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 38
Rev. Date: 1/14/2009
Heat Recovery Steam Generator Trim Lists
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 39
Rev. Date: 1/14/2009
8.0 Heat Recovery Steam Generator Trim Lists
Notes
1. The safety valves will be furnished with gags, vents, stacks, and supports. Safety valves shall
be manufactured by Consolidated, Farris, or Crosby.
2. Double block to be achieved by manifolding and using one valve for second valve.
3. The suppliers named in the trim list are to indicate the quality of equipment proposed. The
Company reserves the right to substitute equal or superior quality equipment to those names.
Factory Setting Vs. Field Setting of Safety Valves
Every safety valve is set and adjusted on steam before shipment from the factory. Blowdown
adjustments are made as carefully and accurately as possible on the factory test boiler. However,
it must be recognized that actual field operating conditions may vary considerably from factory
test conditions.
Conditions beyond manufacturer's control that affect safety valve operation are:
1. Quality of steam being discharged.
2. Discharge piping stresses and back pressure.
3. Ambient temperature.
4. Shipping or storage damage.
5. Improper gagging.
6. Improper bolting of flanges.
7. Damage due to foreign material in the steam.
It is the responsibility of the Purchaser to procure the services of the safety valve manufacturer or
a safety valve assembly company certified by ASME to use "V" stamp, to perform final safety
valve adjustments in the field.
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 40
Rev. Date: 1/14/2009
TYPICAL PROCESS VALVE &
EQUIPMENT LIST
Description Manuf. Size Class Type Mat'l Model #
H.P.
Superheater
START-UP VENT VALVE FISHER 6" 2500 GLOBE A351 CF8M Model EHD w/
Electr. Act.w/
WHIII. Trim
(Sized for 192666
#/hr @ 690 F &
832 psig; Valve
LpA=94.2 dBA)
START-UP VENT BLOCK
VALVE
PACIFIC 6" 2500 GATE A217 C12A 55425H-7-C12A-
WE-BG
SAFETY VALVE CONSOLID 2.5"x6" 2500 PSV A182 F91 1739WF
STARTUP VENT/PSV
SILENCER
FLUID
KINET.
N/A N/A N/A CS Shell w/
CS Internals
BOS 71-68-1603
(designed for 105
dbA @ 3 ft.)
MAIN STEAM STOP VALVE PACIFIC 12" 2500 GATE A217 C12A 55425H-7-C12A-
WE-E
MAIN STEAM NRV VALVE PACIFIC 12" 2500 STOP-
CHECK
A217 C12A 59525H-7-C12A-
WE-HB
MAIN STEAM DRAIN VALVE
(x2)
EDWARD 1" 1690 GLOBE A182 F91 D36124/MOV
PRESS GAUGE ISOL (x2) EDWARD 1" 1690 GLOBE A182 F91 D36124
PRESS GAUGE TEST/BLEED AGCO 1/2" 2500 NEEDLE 304SS H7HPS4AT-XP
HP SH #1 MODULE VENT
(x2)
EDWARD 3/4" 1690 GLOBE A182 F91 D36124
HP SH #4 MODULE VENT
(x2)
VOGT 3/4" 1690 GLOBE A105 SW1510
HP SH MODULE DRAIN VLV
(x4)
EDWARD 1-1/2" 1690 GLOBE A182 F91 D36124
HP SH MODULE DRAIN VLV
(x4)
EDWARD 1-1/2" 2680 GLOBE A182 F91 D36124/MOV
SH FEEDER VENT (x2) VOGT 3/4" 1690 GLOBE A105 SW1510
SAT STEAM SAMPLE ISOL
(x2)
VOGT 3/4" 1690 GLOBE A105 SW1510
SAT STEAM SAMPLE ISOL
(x2)
VOGT 3/4" 1690 GLOBE A105 SW1510
MAIN STEAM HEADER VENT
(x2)
EDWARD 3/4" 1690 GLOBE A182 F91 D36124
MAIN STEAM SAMPLE
VALVE (x4)
EDWARD 3/4" 1690 GLOBE A182 F91 D36124
PRESS XMTR ISOL (x2) VOGT 1" 1690 GLOBE A182 F22 SW1522
H.P. Superheater
Attemperator
SPRAYWATER ISOL VOGT 2" 2500 GATE A182 F22 SW66773/MOV
SPRAYWATER CHECK
VALVE
VOGT 2" 1690 CHECK A182 F22 SW1622
HP SH INTERSTAGE ATTMP
CNTRL VALVE
YARWAY 1.5" 2500 GLOBE A182 F347 TEMPLOW, Type
4332-C9
SPRAYWATER LINE DRAIN
VALVE (x2)
VOGT 1" 1690 GLOBE A182 F22 SW1522
ATTMP LOOP VENT (x2) VOGT 3/4" 1690 GLOBE A182 F22 SW1522
ATTMP LOOP VENT (x2) VOGT 3/4" 1690 GLOBE A182 F22 SW1522
ATTMP LOOP DRAIN VOGT 1" 1690 GLOBE A182 F22 SW1522
ATTMP LOOP DRAIN VOGT 1" 1690 GLOBE A182 F22 SW1522/MOV
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 41
Rev. Date: 1/14/2009
PRESS XMTR ISOL (x2) VOGT 1" 1690 GLOBE A182 F22 SW1522
H.P.
Evaporator
SAFETY VALVE CONSOLID 2.5"x6" 2500 PSV A216 WCB 1739WF
SAFETY VALVE CONSOLID 3"x6" 2500 PSV A216 WCB 1759WF
PSV SILENCER FLUID
KINET.
N/A N/A N/A CS Shell w/
CS Internals
BOS 71-80-1819
(designed for 105
dbA @ 3 ft.)
N2 BLOCK VALVE VOGT 1" 1690 GLOBE A105 SW1510
NITROGEN FILL VALVE VOGT 1" 1690 STOP CHK A105 SW1510 MOD
N2 PURGE BLOCK VALVE VOGT 1" 1690 GLOBE A105 SW1510
N2 PURGE VENT VALVE VOGT 1" 1690 GLOBE A105 SW1510/MOV
PRESS GAUGE ISOL (x2) VOGT 1" 1690 GLOBE A105 SW1510
PRESS GAUGE TEST COCK AGCO 1/2" 2500 NEEDLE 304SS H7HPS4AT-XP
PRESS XMTR ISOL (x2) VOGT 1" 1690 GLOBE A105 SW1510
WATER SAMPLE ISOL (x2) VOGT 1" 1690 GLOBE A105 SW1510
CONT BD LINE BLOCK VOGT 2" 1690 GLOBE A105 SW1510
CONT BLOWDOWN VALVE YARWAY 1" 1700 GLOBE A182 F22 5817A HY-DROP
LVL XMTR ISOL (x4) VOGT 1" 1500 GATE A105 SW15801
REMOTE LEVEL GAUGE
ISOL (x4)
VOGT 1-1/2" 1500 GATE A105 SW15801
WATER COLUMN DRAIN (x2) VOGT 3/4" 1690 GLOBE A105 SW1510
LVL GAUGE DRAIN VOGT 3/4" 1690 GLOBE A105 SW1510
CHEMICAL FEED CHECK
VALVE
VOGT 1" 1690 CHECK A-105 SW1610
CHEMICAL FEED ISOL (x2) VOGT 1" 1690 GLOBE A105 SW1510
INTERMITTENT BLOWDOWN YARWAY 2" 1500 BLOW-OFF A105 6981M-6981M
Unit Tandem
EVAP MODULE DRAIN (x2) VOGT 2" 1690 GLOBE A105 SW1510
H.P.
Economizer
ECON MODULE DRAIN (x7) VOGT 1-1/2" 1690 GLOBE A105 SW1510
ECON DRAIN MANIFOLD (x2) VOGT 2" 1690 GLOBE A105 SW1510
ECON MODULE VENT (x5) VOGT 3/4" 1690 GLOBE A105 SW1510
ECON MODULE VENT
MANIFOLD
VOGT 3/4" 1690 GLOBE A105 SW1510/MOV
F.W. INLET DRAIN VALVE
(x2)
VOGT 1-1/2" 1690 GLOBE A105 SW1510
F.W. INLET CHECK VALVE PACIFIC 8" 2500 CHECK A216 WCB 58825-7-WE
F.W. INLET STOP VALVE PACIFIC 10" 2500 GATE A216 WCB 55525-7-WE
F.W. INLET STOP VALVE PACIFIC 10" 2500 GATE A216 WCB 55525-7-WE-E
PRESS XMTR ISOL (x2) VOGT 3/4" 1690 GLOBE A105 SW1510
F.W. INLET SAMPLE VALVE
(x2)
VOGT 1" 1690 GLOBE A105 SW1510
R.H.
Superheater
Inlet
INLET SAFETY VALVE CONSOLID 6"x8" 600 PSV A216 WCB 1811QB
INLET SAFETY VALVE CONSOLID 6"x8" 600 PSV A216 WCB 1811QB
PSV SILENCER FLUID
KINET.
N/A N/A N/A CS Shell w/
CS Internals
BOS 93-67-2784
(designed for 105
dbA @ 3 ft.)
PRESS GAUGE ISOL (x2) VOGT 1/2" 800 GLOBE A105 SW810
PRESS GAUGE TEST COCK AGCO 1/2" 2500 NEEDLE 304SS H7HPS4AT-XP
RH SH MODULE #1 VENT
(x2)
VOGT 3/4" 800 GLOBE A105 SW810
PRESS XMTR ISOL (x2) VOGT 1" 800 GLOBE A182 F22 SW822
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 42
Rev. Date: 1/14/2009
R.H. Superheater
Attemperator
SPRAYWATER ISOL VOGT 2" 800 GATE A182 F22 SW12521/MOV
SPRAYWATER CHECK
VALVE
VOGT 2" 1690 CHECK A182 F22 SW1622
HP SH INTERSTAGE ATTMP
CNTRL VALVE
YARWAY 1" 1500 GLOBE A182 F22 TEMPLOW, Type
4330-C6E3
SPRAYWATER LINE DRAIN
VALVE (x2)
VOGT 1" 800 GLOBE A182 F22 SW822
ATTMP LOOP VENT (x2) VOGT 3/4" 800 GLOBE A182 F22 SW822
ATTMP LOOP DRAIN (x2) VOGT 1-1/2" 800 GLOBE A182 F22 SW822
ATTMP LOOP DRAIN (x2) VOGT 1-1/2" 800 GLOBE A182 F22 SW822/MOV
ATTMP LOOP DRAIN VOGT 1" 800 GLOBE A182 F22 SW822
ATTMP LOOP DRAIN VOGT 1" 800 GLOBE A182 F22 SW822/MOV
PRESS XMTR ISOL (x2) VOGT 1" 800 GLOBE A182 F22 SW822
R.H. Superheater
Outlet
OUTLET SAFETY VALVE CONSOLID 6"x8" 600 PSV A217 WC9 1811QB
PSV SILENCER FLUID
KINET.
N/A N/A N/A CS Shell w/
CS Internals
BOS 77-68-1819
(designed for 105
dbA @ 3 ft.)
PRESS GAUGE ISOL (x2) VOGT 3/4" 1690 GLOBE A182 F22 SW1522
PRESS GAUGE TEST COCK AGCO 1/2" 2500 NEEDLE 304SS H7HPS4AT-XP
RH SH MODULE #1 VENT
(x2)
VOGT 3/4" 800 GLOBE A182 F22 SW810
I.P.
Superheater
START-UP VENT VALVE FISHER 2-1/2" 600 GLOBE A216 WCB Model ED w/
Electr. Act w/ Std
Trim (Sized for
76178 #/hr @ 530
F & 600 psig;
Valve LpA=104.1
dBA)
START-UP VENT BLOCK
VALVE
CRANE 3" 600 GLOBE A216 WCB 171.5 XU
SAFETY VALVE CONSOLID 1.5"X3" 600 PSV A216 WCB 2715WB
STARTUP VENT/PSV
SILENCER
FLUID
KINET.
N/A N/A N/A CS Shell w/
CS Internals
BOS 34-65-298
(designed for 105
dbA @ 3 ft.)
MAIN STEAM STOP VALVE CRANE 8" 600 GATE A216 WCB 76.5 XUF/MOV
MAIN STEAM NRV VALVE PACIFIC 8" 600 GATE A216 WCB 660S-7-WE
MAIN STEAM DRAIN VALVE
(x2)
VOGT 1" 800 GLOBE A105 SW810/MOV
SH MODULE DRAIN VOGT 1-1/2" 800 GLOBE A105 SW810
SH MODULE DRAIN VOGT 1-1/2" 800 GLOBE A105 SW810/MOV
SH FEEDER VENT (x2) VOGT 3/4" 800 GLOBE A105 SW810
SAT STEAM SAMPLE ISOL
(x2)
VOGT 3/4" 800 GLOBE A105 SW810
SAT STEAM SAMPLE ISOL
(x2)
VOGT 3/4" 800 GLOBE A105 SW810
MAIN STEAM HEADER VENT
(x2)
VOGT 3/4" 800 GLOBE A105 SW810
MAIN STEAM SAMPLE
VALVE (x4)
VOGT 3/4" 800 GLOBE A105 SW810
I.P.
Evaporator
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 43
Rev. Date: 1/14/2009
SAFETY VALVE CONSOLID 1.5"x3" 600 PSV A216 WCB 2715WB
SAFETY VALVE CONSOLID 1.5"x3" 600 PSV A216 WCB 2715WB
PSV SILENCER FLUID
KINET.
N/A N/A N/A CS Shell w/
CS Internals
BOS 30-58-219
(designed for 105
dbA @ 3 ft.)
N2 BLOCK VALVE VOGT 1" 800 GLOBE A105 SW810
NITROGEN FILL VALVE VOGT 1" 800 STOP CHK A105 SW810 MOD.
N2 PURGE BLOCK VALVE VOGT 1" 800 GLOBE A105 SW810
N2 PURGE VENT VALVE VOGT 1" 800 GLOBE A105 SW810/MOV
PRESS GAUGE ISOL (x2) VOGT 1" 800 GLOBE A105 SW810
PRESS GAUGE TEST COCK AGCO 1/2" 2500 NEEDLE 304SS H7HPS4AT-XP
PRESS XMTR ISOL (x2) VOGT 1" 800 GLOBE A105 SW810
WATER SAMPLE ISOL (x2) VOGT 1" 800 GLOBE A105 SW810
CONT BD LINE BLOCK VOGT 1" 800 GLOBE A105 SW810
CONT BLOWDOWN VALVE VOGT 1" 800 GLOBE A105 SW12443/PNEU
M
LVL XMTR ISOL (x4) VOGT 1" 800 GATE A105 SW2801
REMOTE LEVEL GAUGE
ISOL (x4)
VOGT 1-1/2" 800 GATE A105 SW2801
WATER COLUMN DRAIN (x2) VOGT 3/4" 800 GLOBE A105 SW810
LVL GAUGE DRAIN VOGT 3/4" 800 GLOBE A105 SW810
CHEMICAL FEED CHECK
VALVE
VOGT 1" 800 CHECK A-105 SWS74
CHEMICAL FEED ISOL (x2) VOGT 1" 800 GLOBE A105 SW810
INTERMITTENT BLOWDOWN
(x2)
VOGT 1" 800 GLOBE A105 SW810/ MOD/
MOV
EVAP MODULE DRAIN (x2) VOGT 1" 800 GLOBE A105 SW810
I.P.
Economizer
F.W. INLET DRAIN VALVE
(x2)
VOGT 1-1/2" 800 GLOBE A105 SW810
PEGGING STEAM STOP
VALVE
CRANE 4" 900 GATE SA216 WCB 55509-7-WE
F.W. INLET CHECK VALVE CRANE 4" 900 CHECK A216 WCB 58809-7-WE
F.W. INLET STOP VALVE CRANE 4" 900 GATE SA216 WCB 55509-7-WE
F.W. INLET STOP VALVE CRANE 4" 900 GATE SA216 WCB 55509-7-WE-E
PRESS XMTR ISOL (x2) VOGT 1/2" 800 GLOBE A105 SW810
F.W. INLET SAMPLE VALVE
(x2)
VOGT 1" 800 GLOBE A105 SW810
L.P.
Superheater
START-UP VENT VALVE FISHER 8" 300 GLOBE A216 WCB Model ED w/
Electr. Act. w/ Std
Trim (Sized for
46635 #/hr @ 395
F & 125 psig;
Valve LpA=105
dBA)
START-UP VENT BLOCK
VALVE
PACIFIC 6" 300 GATE A216 WCB 33.5 XUF
SAFETY VALVE CONSOLID 2.5"x4" 300 PSV A216 WCB 1811LB
STARTUP VENT/PSV
SILENCER
FLUID
KINET.
N/A N/A N/A CS Shell w/
CS Internals
BOS 28-64-181
(designed for 105
dbA @ 3 ft.)
MAIN STEAM STOP VALVE PACIFIC 12" 300 GATE A216 WCB 33.5 XUF/MOV
MAIN STEAM NRV VALVE PACIFIC 12" 300 STOP-
CHECK
A216 WCB 360S-7-WE
MAIN STEAM DRAIN VALVE
(x2)
VOGT 1" 800 GLOBE A105 SW810/MOV
PRESS GAUGE ISOL (x2) VOGT 1/2" 800 GLOBE A105 SW810
PRESS GAUGE TEST COCK AGCO 1/2" 2500 NEEDLE 304SS H7HPS4AT-XP
SH MODULE DRAIN VOGT 1-1/2" 800 GLOBE A105 SW810
SH MODULE DRAIN VOGT 1-1/2" 800 GLOBE A105 SW810/MOV
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 44
Rev. Date: 1/14/2009
SH FEEDER VENT (x2) VOGT 3/4" 800 GLOBE A105 SW810
SAT STEAM SAMPLE ISOL
(x2)
VOGT 3/4" 800 GLOBE A105 SW810
SAT STEAM SAMPLE ISOL
(x2)
VOGT 3/4" 800 GLOBE A105 SW810
MAIN STEAM HEADER VENT
(x2)
VOGT 3/4" 800 GLOBE A105 SW810
MAIN STEAM SAMPLE
VALVE (x4)
VOGT 3/4" 800 GLOBE A105 SW810
L.P.
Evaporator
SAFETY VALVE CONSOLID 3"X4" 300 PSV A216 WCB 1811MB
SAFETY VALVE CONSOLID 2.5"X4" 300 PSV A216 WCB 1811LB
PSV SILENCER FLUID
KINET.
N/A N/A N/A CS Shell w/
CS Internals
BOS 28-64-181
(designed for 105
dbA @ 3 ft.)
N2 BLOCK VALVE VOGT 1" 800 GLOBE A105 SW810
NITROGEN FILL VALVE VOGT 1" 800 STOP CHK A105 SW810 MOD.
N2 PURGE BLOCK VALVE VOGT 1" 800 GLOBE A105 SW810
N2 PURGE VENT VALVE VOGT 1" 800 GLOBE A105 SW810
PRESS GAUGE ISOL (x2) VOGT 1" 800 GLOBE A105 SW810
PRESS GAUGE TEST COCK AGCO 1/2" 2500 NEEDLE 304SS H7HPS4AT-XP
PRESS XMTR ISOL (x2) VOGT 1" 800 GLOBE A105 SW810
WATER SAMPLE ISOL (x2) VOGT 1" 800 GLOBE A105 SW810
LVL XMTR ISOL (x4) VOGT 1" 800 GATE A105 SW2801
REMOTE LEVEL GAUGE
ISOL (x4)
VOGT 1-1/2" 800 GATE A105 SW2801
WATER COLUMN DRAIN (x2) VOGT 3/4" 800 GLOBE A105 SW810
LVL GAUGE DRAIN VOGT 3/4" 800 GLOBE A105 SW810
CHEMICAL FEED CHECK
VALVE
VOGT 1" 800 CHECK A-105 SWS74
CHEMICAL FEED ISOL (x2) VOGT 1" 800 GLOBE A105 SW810
INTERMITTENT BLOWDOWN
(x2)
VOGT 1" 800 GLOBE A105 SW810/ MOD/
MOV
EVAP MODULE DRAIN (x2) VOGT 2" 800 GLOBE A105 SW810
HP FW PUMP SUCT. ISOL CRANE 8" 300 GATE A216 WCB 33.5 XUF
IP FW PUMP SUCT. ISOL CRANE 4" 300 GATE A216 WCB 33.5 XUF
HP FW PUMP RECIRC. PACIFIC 4" 1500 GATE A216 WCB 55515-7-WE
IP FW PUMP RECIRC. CRANE 3" 300 GATE A216 WCB 33.5 XUF
DRUM WATER SAMPLE ISOL
(x2)
VOGT 3/4" 800 GLOBE A105 SW810
L.P.
Economizer
ECON MODULE VENT (x4) VOGT 3/4" 800 GLOBE A105 SW810
ECON MODULE VENT
MANIFOLD
VOGT 1" 800 GLOBE A105 SW810
ECON MODULE DRAIN
VALVE (x5)
VOGT 1-1/2" 800 GLOBE A105 SW810
ECON DRAIN MANIFOLD VOGT 2" 800 GLOBE A105 SW810
ECON INLET DRAIN VALVE
(x2)
VOGT 1-1/2" 800 GLOBE A105 SW810
ECON INLET CHECK VALVE CRANE 8" 300 CHECK A216 WCB 159.5 XU
ECON INLET STOP VALVE CRANE 10" 300 GATE SA216 WCB 33.5 XUF
PRESS XMTR ISOL (x2) VOGT 1/2" 800 GLOBE A105 SW810
3-WAY BYPASS ON/OFF
VALVE
FISHER 6" 300 GLOBE A105 667-YD-3582I-
4215-ASCO
Feedwater
Heater
F.W. INLET DRAIN VALVE
(x2)
VOGT 1" 800 GLOBE A105 SW810
F.W. INLET CHECK VALVE CRANE 8" 300 CHECK A216 WCB 159.5 XU
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 45
Rev. Date: 1/14/2009
F.W. INLET STOP VALVE CRANE 8" 300 GATE A216 WCB 33.5 XUF/MOV
DRAIN VALVE (x2) VOGT 1" 800 GLOBE A105 SW810
F.W. CNTRL VALVE ISOL
(x2)
CRANE 8" 300 GATE A216 WCB 33.5 XUF
F.W. CV BYPASS VALVE CRANE 4" 300 GLOBE A216 WCB 151.5 XU
F.W. CNTRL VALVE DRAIN
(x3)
VOGT 1" 800 GLOBE A105 SW810
PRESS GAUGE ISOL (x2) VOGT 1/2" 800 GLOBE A105 SW810
PRESS GAUGE TEST COCK AGCO 1/2" 2500 NEEDLE 304SS H7HPS4AT-XP
F.W. OUTLET PR. TEST ISOL
(x2)
VOGT 1/2" 800 GLOBE A105 SW810
F.W. INLET SAMPLE VALVE
(x2)
VOGT 1" 800 GLOBE A105 SW810
L.P. F.W.
Recirculation Pump
Station
RECIRC PUMP (x2) INGERSOLL 4x2-13A 600 CENTRIFU
GAL
CS HPX
RECIRC PUMP CNTL VALVE MASONEIL. 6" 300 GLOBE SA216 WCB Model 88-41511
w/ linear valve
char.
RECIRC PUMP CV ISOL (x2) CRANE 8" 300 GATE SA216 WCB 33.5-XUF
F. W. CONTROL VALVE BYP. CRANE 4" 300 GLOBE SA216 WCB 151.5-XU
F.W. CNTRL VLV STAT.
DRAIN (x3)
VOGT 1" 800 GLOBE SA-105 SW810
FLOW XMTR ISOL (x4) VOGT 1" 800 GLOBE SA105 SW810
RECIRC PUMP OUTLET
CHECK (x2)
CRANE 6" 300 CHECK SA216 WCB 159.5-XU
RECIRC PUMP OUTLET ISOL
(x2)
CRANE 8" 300 GATE SA216 WCB 33.5-XUF
PUMP DISCHARGE DRAIN
(x4)
VOGT 1" 800 GLOBE SA-105 SW810
RECIRC PUMP INLET ISOL
(x2)
CRANE 8" 300 GATE SA216 WCB 33.5-XUF
PRESS GAUGE ISOL (x8) VOGT 1" 800 GLOBE SA105 SW810
PRESS GAUGE/XMTR ISOL
(x2)
VOGT 1" 800 GLOBE SA105 SW810
PR GAUGE/XMTR TEST
COCK
AGCO 1/2" 800 NEEDLE 304SS H7HPS44Q-XP
RECIRC PUMP STRAINER
(x2)
SSI
EQUIPMEN
T
8" 300 Y-
STRAINER
CS
HOUSING
w/ 304SS
BSKT
STRAINER DP SWITCH ISOL
(x8)
VOGT 1" 800 GLOBE SA105 SW810
REC. PUMP MIN. RECIRC
VALVE
YARWAY 4" 300 GLOBE SA216 WCB 9300 Series w/
back pr. reg.
MIN RECIRC VLV BLOCK CRANE 4" 300 GATE SA216 WCB 33.5-XUF
HRSG
Ductwork
HRSG CASING DRAINS (x6) CRANE 3" 150 GATE A216 WCB 47 XU
HRSG STACK DRAIN CRANE 4" 150 GATE A216 WCB 47 XU
TYPICAL INSTRUMENT LIST
NOTE: INSTRUMENT LIST IS PRELIMINARY. FINAL DESIGN DETAILS MUST BE DETERMINED UPON AWARD
OF CONTRACT.
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 46
Rev. Date: 1/14/2009
DESCRIPTION ELECTRIC
AL
REQ'MNT/
SIGNAL
TYPE
MEAS.
RANGE
MODEL NO./
MANUFACTURE
R
NOM. SIZE &
MAT'L OF
CONSTR/ PROC.
CONN., SIZE &
TYPE
NOTES
H. P. SUPERHEATER
THERMOCOU
PLE
THERMOWELL
(x2)
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-F91,
T=10.25"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F91
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
STEAM
OUTLET
PRESSURE
GAUGE
N/A/
VISUAL
0-3000
psig
4-1/2" 1379SS
XSG XOS 04L 0-
3000 PSI/
ASHCROFT
4-1/2" Dial; 316 SS/
0.5 Inch Lower
Stem Conn.
w/ Overload Stop; w/ 1/2", 50-1098ND
Pigtail Syphon; w/ laminated safety
glass; w/ Calibr. Certs
THERMOCOU
PLE
THERMOWELL
(x4) (between
each section)
N/A N/A 1-1/2"H260U4.5-
A105 OL=6.25"/
STI
1-1/2","U"=4-1/2",
A105; 1-1/2" NPT
Stepless, Tapered TW w/ Max Bore ID
of 0.260 w/ No Lagging Ext. w/
Preassembled TC
H. P. SUPERHEATER
ATTEMPERATOR
THERMOCOU
PLE
THERMOWELL
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-F22,
T=10-
1/4"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F22
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
THERMOCOU
PLE
THERMOWELL
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-F22,
T=10-
1/4"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F22
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
THERMOCOU
PLE
THERMOWELL
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-F22,
T=10-
1/4"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F22
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
THERMOCOU
PLE
THERMOWELL
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-F22,
T=10-
1/4"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F22
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 47
Rev. Date: 1/14/2009
H. P. DRUM
DRUM
PRESSURE
GAUGE
N/A;
VISUAL
0-3000
psig
8-1/2" 1377SS
XSG XOS 04B 0-
3000 PSI/
ASHCROFT
8-1/2" Dial; 316SS
Bourdon Tube/
Flush Mounted
Gauge, 0.5 Inch
NPT Back Conn.
w/ Overload Stop; w/ 1/2", 50-1098ND
Pigtail Syphon; w/ laminated safety
glass; w/ Calibr. Certs
DRUM
REMOTE
LEVEL
INDICATOR
ASSEMBLY
220 VAC, 1
ph, 60 Hz,
0.5 A/
Relay
Contact
Rating: 10
A @ 220
VAC
TBD (ref.
drum
centerline
)
Aquarian Series
3000M, Model
2232M-10 w/ 3000
psi Water Column/
YARWAY
STEEL/ Water
Column w/ 1.5",
Sch. 80 stub boiler
& 1" drain
connections
10 Probe Column; w/ NEMA 4X
Electrical Encl.
DRUM LEVEL
GAUGE
220 VAC
Input to
Illum.
TBD (ref.
drum
centerline
)
4595F (Multiple
Port) Color Port/
YARWAY
STEEL/ Water
Column Assbly w/
3/4" ANSI Cl. RF
Flng Gage Conn.
w/ 3/4" SW Welbloc
Type Gage Valve
Drain Conn.
Mounted on RLI Water Column; w/ Bi-
Color Ports; w/ NEMA 3R Outdoor
Illuminator w/ Open Front Hood; w/ 18"
Visibility
DRUM 10-
LIGHT
REMOTE
LEVEL
INDCIATOR
120 VAC TBD (ref.
drum
centerline
)
Aquarian Series
3000M Remote
Level Indicator/
YARWAY
N/A Two-color Solid State LED Indicators w/
NEMA 4X Electrical Enclosure (Located
@ Control Valve Station)
DRUM 10-
LIGHT
REMOTE
LEVEL
INDICATOR
120 VAC TBD (ref.
drum
centerline
)
Aquarian Series
3000M Remote
Level Indicator/
YARWAY
N/A Two-color Solid State LED Indicators
(Located in Control Room)
TEMPORARY BOILOUT LEVEL
GAUGE
YARWAY Flgd; 18" Visibility
DRUM
THERMOCOU
PLES W/ PAD
(X2)
TYPE E
INPUT/ mV
-300 up
to 1600
deg F
Conax Buffalo Stainless steel pad
3/16" dia
E-SS18-2U(Weldpad)-T3(6 ft)-(36 in)
H. P.
ECONOMIZER
THERMOCOU
PLE
THERMOWELL
(x4)
N/A N/A 1-1/2"H260U4.5-
A105 OL=6.25"/
STI
1-1/2","U"=4-1/2",
A105; 1-1/2" NPT
Stepless, Tapered TW w/ Max Bore ID
of 0.260 w/ No Lagging Ext. w/
Preassembled TC
THERMOCOU
PLE
THERMOWELL
(x4) (between
each section)
N/A N/A 1-1/2"H260U4.5-
A105 OL=6.25"/
STI
1-1/2","U"=4-1/2",
A105; 1-1/2" NPT
Stepless, Tapered TW w/ Max Bore ID
of 0.260 w/ No Lagging Ext. w/
Preassembled TC
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 48
Rev. Date: 1/14/2009
REHEATER
THERMOCOU
PLE
THERMOWELL
(x2)
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-F91,
T=10.25"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F91
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
STEAM
OUTLET
PRESSURE
GAUGE
N/A/
VISUAL
0-1000
psig
4-1/2" 1379SS
XSG XOS 04L 0-
1000 PSI/
ASHCROFT
4-1/2" Dial; 316 SS/
0.5 Inch Lower
Stem Conn.
w/ Overload Stop; w/ 1/2", 50-1098ND
Pigtail Syphon; w/ laminated safety
glass; w/ Calibr. Certs
THERMOCOU
PLE
THERMOWELL
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-A105,
T=10.25"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F91
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
STEAM INLET
PRESSURE
GAUGE
N/A/
VISUAL
0-1000
psig
4-1/2" 1379SS
XSG XOS 04L 0-
1000 PSI/
ASHCROFT
4-1/2" Dial; 316 SS/
0.5 Inch Lower
Stem Conn.
w/ Overload Stop; w/ 1/2", 50-1098ND
Pigtail Syphon; w/ laminated safety
glass; w/ Calibr. Certs
REHEATER ATTEMPERATOR
THERMOCOU
PLE
THERMOWELL
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-F22,
T=10-
1/4"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F22
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
THERMOCOU
PLE
THERMOWELL
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-F22,
T=10-
1/4"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F22
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
THERMOCOU
PLE
THERMOWELL
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-F22,
T=10-
1/4"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F22
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
THERMOCOU
PLE
THERMOWELL
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-F22,
T=10-
1/4"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A182 F22
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 49
Rev. Date: 1/14/2009
I. P. SUPERHEATER
THERMOCOU
PLE
THERMOWELL
(X2)
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-A105,
T=10.25"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A105
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
STEAM
OUTLET
PRESSURE
GAUGE
N/A/
VISUAL
0-1000
psig
4-1/2" 1379SS
XSG XOS 04L 0-
1000 PSI/
ASHCROFT
4-1/2" Dial; 316 SS/
0.5 Inch Lower
Stem Conn.
w/ Overload Stop; w/ 1/2", 50-1098ND
Pigtail Syphon; w/ laminated safety
glass; w/ Calibr. Certs
I. P. DRUM
DRUM
PRESSURE
GAUGE
N/A;
VISUAL
0-600
psig
8-1/2" 1377SS
XSG XOS 04B 0-
600 PSI/
ASHCROFT
8-1/2" Dial; 316SS
Bourdon Tube/
Flush Mounted
Gauge, 0.5 Inch
NPT Back Conn.
w/ Overload Stop; w/ 1/2", 50-1098ND
Pigtail Syphon; w/ laminated safety
glass; w/ Calibr. Certs
DRUM
REMOTE
LEVEL
INDICATOR
ASSEMBLY
220 VAC, 1
ph, 50 Hz,
0.5 A/
Relay
Contact
Rating: 10
A @ 220
VAC
TBD (ref.
drum
centerline
)
Aquarian Series
3000M, Model
2236M-10 w/ 650
psi Water Column/
YARWAY
STEEL/ Water
Column w/ 1.5",
Sch. 80 stub boiler
& 1" drain
connections
10 Probe Column; w/ NEMA 4X
Electrical Encl.
DRUM LEVEL
GAUGE
220 VAC
Input to
Illum.
TBD (ref.
drum
centerline
)
4327NSB Flat
Glass Gage/
YARWAY
STEEL/ 3/4" Nipple
Ended Gage Conn.
w/ 3/4" Stuffing Box
Gage Valves Model
4000S w/ 3/4"
NPTF Vent/Drain
Conn.
Mounted on RLI Water Column; w/
NEMA 3R Outdoor Illuminator w/ Open
Front Hood; w/ 18" Visibility
DRUM 10-
LIGHT
REMOTE
LEVEL
INDCIATOR
220 VAC TBD (ref.
drum
centerline
)
Aquarian Series
3000M Remote
Level Indicator/
YARWAY
N/A Two-color Solid State LED Indicators w/
NEMA 4X Electrical Enclosure (Located
@ Control Valve Station)
DRUM 10-
LIGHT
REMOTE
LEVEL
INDICATOR
220 VAC TBD (ref.
drum
centerline
)
Aquarian Series
3000M Remote
Level Indicator/
YARWAY
N/A Two-color Solid State LED Indicators
(Located in Control Room)
TEMPORARY BOILOUT LEVEL
GAUGE
YARWAY STEEL/ 3/4" Nipple
Ended Gage Conn.
w/ 3/4" Stuffing Box
Gage Valves Model
4000S w/ 3/4"
NPTF Vent/Drain
Conn.
Flgd; 18" Visibility
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 50
Rev. Date: 1/14/2009
DRUM
THERMOCOU
PLES W/ PAD
(X2)
TYPE E
INPUT/ mV
-300 up
to 1600
deg F
Conax Buffalo Stainless steel pad
3/16" dia
E-SS18-2U(Weldpad)-T3(6 ft)-(36 in)
I. P.
ECONOMIZER
THERMOCOU
PLE
THERMOWELL
(X4)
N/A N/A 1-1/2"H260U2.5-
A105 OL=4.25"/
STI
1-1/2","U"=2-1/2",
A105; 1-1/2" NPT
Stepless, Tapered TW w/ Max Bore ID
of 0.260 w/ No Lagging Ext. w/
Preassembled TC
L. P.
SUPERHEATER
THERMOCOU
PLE
THERMOWELL
(X2)
N/A N/A 1.5"-WIHL260(1.5"
Diam)-U4.5-A105,
T=10.25"(Lagging)
OL=16.5" w/ Min.
3/4" Tip Diam./
STI
1-1/2","U"=4-1/2",
A105
Weld-in Type, Stepless, Tapered TW w/
Max Bore ID of 0.260 w/ Mat'l Certs w/
Preassembled TC
STEAM
OUTLET
PRESSURE
GAUGE
N/A/
VISUAL
0-1000
psig
4-1/2" 1379SS
XSG XOS 04L 0-
1000 PSI/
ASHCROFT
4-1/2" Dial; 316 SS/
0.5 Inch Lower
Stem Conn.
w/ Overload Stop; w/ 1/2", 50-1098ND
Pigtail Syphon; w/ laminated safety
glass; w/ Calibr. Certs
L. P. DRUM
DRUM
PRESSURE
GAUGE
N/A;
VISUAL
0-300
psig
8-1/2" 1377SS
XSG XOS XVS
04B 0-300 PSI/
ASHCROFT
8-1/2" Dial; 316SS
Bourdon Tube/
Flush Mounted
Gauge, 0.5 Inch
NPT Back Conn.
w/ Overload & Vacuum Stops; w/
Glycerine Fill for Gauge; w/ 1/2", 50-
1098ND Pigtail Syphon; w/ laminated
safety glass; w/ Calibr. Certs
DRUM
REMOTE
LEVEL
INDICATOR
ASSEMBLY
220 VAC, 1
ph, 50 Hz,
0.5 A/
Relay
Contact
Rating: 10
A @ 220
VAC
TBD (ref.
drum
centerline
)
Aquarian Series
3000M, Model
2236M-10 w/ 450
psi Water Column/
YARWAY
STEEL/ Water
Column w/ 1.5",
Sch. 80 stub boiler
& 1" drain
connections
10 Probe Column; w/ NEMA 4X
Electrical Encl.
DRUM LEVEL
GAUGE
220 VAC
Input to
Illum.
TBD (ref.
drum
centerline
)
4327NSB Flat
Glass Gage/
YARWAY
STEEL/ 3/4" Nipple
Ended Gage Conn.
w/ 3/4" Stuffing Box
Gage Valves Model
4000S w/ 3/4"
NPTF Vent/Drain
Conn.
Mounted on RLI Water Column; w/
NEMA 3R Outdoor Illuminator w/ Open
Front Hood; w/ 18" Visibility
DRUM 10-
LIGHT
REMOTE
LEVEL
INDCIATOR
220 VAC TBD (ref.
drum
centerline
)
Aquarian Series
3000M Remote
Level Indicator/
YARWAY
N/A Two-color Solid State LED Indicators w/
NEMA 4X Electrical Enclosure (Located
@ Control Valve Station)
Copyright 2009 RIC MIDDLETON, PE
Document Title: HRSG Primer and Design Overview
Page No.: 51
Rev. Date: 1/14/2009
DRUM 10-
LIGHT
REMOTE
LEVEL
INDICATOR
220 VAC TBD (ref.
drum
centerline
)
Aquarian Series
3000M Remote
Level Indicator/
YARWAY
N/A Two-color Solid State LED Indicators
(Located in Control Room)
TEMPORARY BOILOUT LEVEL
GAUGE
YARWAY STEEL/ 3/4" Nipple
Ended Gage Conn.
w/ 3/4" Stuffing Box
Gage Valves Model
4000S w/ 3/4"
NPTF Vent/Drain
Conn.
Flgd; 18" Visibility
DRUM
THERMOCOU
PLES W/ PAD
(X2)
TYPE E
INPUT/ mV
-300 up
to 1600
deg F
Conax Buffalo S