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INTEC Engineering GmbH Thermal oil heaters
INTEC Engineering GmbH
Thermal oil heaters
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Thermal oil heaters by INTEC® are successfully used for supplying pro-cess heat to industrial plants of various industries such as wood, textile,chemical, oleochemical, petrochemical, plastics, pulp and paper, solarpower, ship building and food industries.
Compared to heating systems using hot water or steam, thermal oil asa heat transfer medium offers the advantage, that it can be heated near-ly without any pressure until a temperature of 320 °C. With syntheticoils, even temperatures up to 400 °C can be reached. For this reason, inmost industrial processes heat transfer oil plants have finally achievedpredominance in the supply of process energy.
INTEC® Thermal oil heaters are characterized by the following features:
Our team of specialist together with our high quality production will ensure,that your thermal oil heating plant will meet best suitable your demand.
Thermal Oil Heaters
High efficiency due to generously dimensionedcoil surfaceTailor-made design to individual customer requirementsEnvironmental friendly operation due to low emission valuesHigh operational reliabilityLow operating costsLong service life
Thermal oil heaters by INTEC® using fuelssuch as natural gas fuel oil are operated inthe capacity range of 100 kW up to 25,000kW. Heater systems with higher capacityvalues may be offered upon request.
CAPACITY
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INTEC® thermal oil heater in
cross-section
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Electric heater with an output of 150 kW with six heating
elements for exact regulation of capacity
Thermal oil heater fired with natural gas with a
capacity of 1.6 MW, installed in Texas, USA, appli-
cation in the food industry
FUELS
For heat generation with thermal oil heatersmanufactured by INTEC® conventional fuelssuch as heavy oil, light oil and natural gasare usually burnt.
If one of the above-mentioned fuels is notavailable, it is possible to use electrical ener-gy for the heating process.
Depending on the application certain pro-duction waste in gaseous or liquid form maybe considered for additional incineration.
In order to be able to use biomass and othersolid fuels, INTEC® offers own developedcombustion systems and dust burners.
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REMOVAL OF LOW-BOILERS
With time the thermal oil experiences adegradation which leads also to a reducedflame temperature. In order to reduce thiseffects and to increase the life time of theoil, INTEC® has developed a method to con-tinuously remove the low-boiling fractionduring operation.
EFFICIENCY
System efficiency may be further improvedby usage of an INTEC combustion air pre-heater, exactly matching the INTEC®-heater.Thus, it is possible to either reduce fuel con-sumption or to increase performance byapplying the same amount of fuel. Althoughthese installations require higher invest-ment costs, the invested capital will pay offwithin a short period of time.
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Heater in up-firing layout, capacity: 9.6 MW with
built-in combustion air preheater and subsequent
stack, total height: 25 m, heating of a particle-
board press (Romania)
Horizontal heater with a net capacity of 10 MW
with combustion air preheater, access door at the
reserving chamber for the inspection of the com-
busiton area (Malaysia)
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LAYOUT
Depending on the space requirements andthe customer’s preference, the heater canbe installed either in vertical or in horizontaldirection.
At the end of the first pass the flue gas isturned around, still having high temperatu-re. Usually this area is cladded with refrac-tory material to keep the bottom of the hea-ter at low temperature. Alternatively it ispossible to replace the refractory materialby an oil-cooled plate.
In case of horizontal installation, we areable to insert an inspection hatch in thebaseplate or to install a hinged heater coverin order to facilitate cleaning and mainten-ance. For vertical heaters the burner can bemounted either on top (down-firing) or atthe bottem (up-firing).
On customer’s request, it is possible to pre-mount and to pre-wire heaters with capaci-ty of up to 2,000 kW together with othercomponents (burner, pump, valves and fit-tings) on a framework. Thus, the work re-quired for installation at the customer’s siteis considerably reduced.
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API 560 DESIGN
INTEC® supplies fired heaters to API 560 andISO 13705.
A typical API 560 fired heater design consistsof:
Radiant SectionConvective SectionAir PreheaterStackBurnerControl System
Due to INTEC® own design of combustionand heat transfer systems, we achieve theexcellent solutions with respect to high ther-mal efficiency, low emissions and reliableoperation.
INTEC® supplies cylindrical type direct firedheaters, equipped with low NOx naturaldraft or forced draft burners.
To increase efficiency, preheating of combus-tion air can be achieved by adding a varietyof heat exchangers.
INTEC® heater in API 560
design, with separate
radiant and convective
section, air preheater and
stack, fired by natural gas
and fuel oil residue,
Indonesia
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The burner will automatically switch off, should the maximum admissible thermal oil outlettemperature or the flue-gas temperature after the heater be exceededIn order to protect the thermal oil, the burner capacity is reduced during cold start until theminimum temperature is exceeded. Following that, capacity output of the burner is increaseduntil reaching the setpoint valueThe burner shuts down immediately if the pump stops runningTo avoid over heating and thus damaging of the thermal oil, a minimum volume of the oilmust always flow through the heater. A flow control device approved for this type of installa-tion controls the minimum oil flow through every single pipe coilThe filling level of the thermal oil in the expansion tank is monitored by a float switch. If thefilling level is too low, the plant will switch offIf the plant is shut down, the circulation pump is operated for a certain period of time tocarry away heat that may have accumulated
SAFETY DEVICES
Emphasis is put not only on efficiency, but also onoperational reliability:
In order to achieve high safety standards, INTEC®
thermal oil systems comply with the regulations ofthe German Industrial Norm DIN 4754.
INTEC® plants
allow the connec-
tion of different
consumers
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APPROVALS
Our subsidiary INTEC Rohrtechnik GmbH isbe able to produce our products certifiedaccording to:
AD 2000 - HP0Germanischer Lloyd, Lloyd’s RegisterBureau Veritas, RINA, DNVASME B & PV-Code, Section VIII, Division 1TR-TS(Ru)SELO (Boiler & Pressure Vessel Manufacture Licensing of P.R.China)
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The main components of the
INTEC® heaters are manu-
factured in Germany at
INTEC Rohrtechnik GmbH,
providing the highest
quality level
Radiation boiler with opening
for dust burner, including an
oil-cooled combustion cham-
ber cover
Extractable tube bundle of a
waste heat boiler with auto-
matic cleaning using a soot
blower
Horizontal heater for the
food industry, premounted
and wired as compact unit
Thermal oil heater used to heat
a plant for producing parti-
cleboard near Moscow, Russia,
with a capacity of 12 MW
MANUFACTURING
In order to be able to meet the quality levels requiredby our clients and us, the core components of theINTEC® plants are manufactured in Germany by oursubsidiary INTEC Rohrtechnik GmbH. For the manu-facturing of large components, we dispose of produc-
tion facilities with a surface of 2,500 m2 and craneswith an ultimate load of 25 t per unit. Our machinepark is specialised on the cold forming of tubes up toa nominal diameter of DN 250 as well as on themachining of metal sheets up to a thickness of 25 mm.
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INTEC Engineering GmbH
John-Deere-Str. 43
D-76646 Bruchsal, Germany
Phone: +49 7251 93 243 - 0 Fax: +49 7251 93 243 - 99 E-Mail: [email protected]
INTEC Rohrtechnik GmbH
John-Deere-Str. 41
D-76646 Bruchsal, Germany
Phone: +49 7251 36629-10
Fax: +49 7251 36629-25
E-Mail: [email protected]
INTEC Energy Systems Sdn. Bhd.
6F-21, IOI Business Park,
Bandar Puchong Jaya,
47170 Puchong, Selangor, Malaysia
Phone: +603 5891 6642
Fax: +603 5879 9824
E-Mail: [email protected]
INTEC Heating Solutions Pvt. Ltd. The Empire Business Centre
Empire Industries Ltd.
414, Senapati Bapat Marg.
Lower Parel Mumbai - 400 013, India
Mobil: +91 9920438885
E-Mail: [email protected]
INTEC GMK GmbH
Lilienthalstr. 4
D-18211 Bargeshagen, Germany
Phone: +49 38203 775814
Fax: +49 38203 775820
E-Mail: [email protected]
INTEC Thermal Energy, LLC
5665 Atlanta Hwy.
Suite 102B-225
Alpharetta, Ga. 30004
Phone: +1 770 9104232
E-Mail: [email protected]
INTEC Service GmbH John-Deere-Str. 43 D-76646 Bruchsal, Germany
Phone: +49 7251 93 243-41
Fax: +49 7251 93 243-97
E-Mail: [email protected]
Your representative:
■ Thermal oil heaters
■ Molten salt heating units
■ Steam and hot water boilers
■ Waste heat boilers for different media
■ Natural circulation boilers
■ Steam generators
■ Step grate and bed systems
■ Biomass system for thermal and electrical power plants
■ Complete process heat and power generation systems
■ Sewage sludge dryers and municipal sludge incineration plants
■ Modular ORC power generation
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