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Fire Fighting Gen

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    FIRE FIGHTING PUMPS

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    Importance of fire protection

    Technological developments & establishment of sophisticated industries

    Have increased hazards of fire & explosion. Destruction of property,

    personal injury due to fire is a major concern.It is therefore necessaryFor proper identification of these hazards & quick protection of such

    Incidents when they occur.

    The risks & losses arising out of such accident cant be fully

    covered by insurance & therefore it is necessary to take all possible steps

    to reduce

    The extent of hazards & to minimize losses.An automatic fire protection

    system must be provided for total safety.

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    Following purposes are served by using proper fire fighting systems.

    Safety of human life.

    Safety of buildings,plant,equipment,replacement of which is not costly

    But time consuming also.

    Insurance companies allow substantial rebate on insurance premium

    For installing fire fighting equipment's approved by TAC( TariffAdvisory committee)

    / NAPF 20 system approval is made compulsory by TAC.

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    FIRE :

    There are so many reasons of fire

    Careless match

    Short circuit

    Chemical explosion

    the fire can destroy property, profits and

    some timespeople too. All that remains is debris

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    Fire insurance helps to get back some of the moneyinvested. But insurance cannot bring back every

    thing like

    loss of stock

    loss of production facilities

    delay while new machinery arrives

    loss of customers

    loss of immediate profits while business is being built

    Fire insurance cant put out a fire, so that the only

    alternative would be to play safe and in the event ofaccidental fire and be prepared to stop fire within

    shortest possible time, before it can further damage.

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    Fire Hazards

    Normally fire hazards are classified in following major categories

    1. Light Hazard Occupancies for e.g Cinema theaters, hotels,

    hospitals, offices and schools.

    2. Ordinary Hazards Occupancies for e.g. Cigarette factories,

    Cotton mills and bakeries.

    3. High Hazards A&C

    Alcohol distilleries, match factories, oil mills, storage yards

    for grass and bagasse.

    4. High Hazards B

    Explosive factories, petrochemical plants, petroleum

    refineries etc. are covered.

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    III FIRE PROTECTION METHODS & SYSTEMS

    fire hazards can occur and increase only if following conditions areavailable

    Fuel availability Excessive Heat/ Temperature Oxygen content

    This is know as a fire triangle. To control & extinguish fire one or more of

    above to be controlled. To cut out fuel To reduce heat To cut off oxygen

    All fire protection systems work on one or combinations of above

    principles. Hydrant systems Sprinkler system Gas based protection systems Dry chemical powder protection systems and foam systems.

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    Out of the above systems sprinkler and Hydrant systems are water based

    and are discussed below.

    Typical Fire water systems are as follows.

    1. Main fire water pump with motor

    2. Main fire water pump with engine

    3. Jockey pump with motor

    4. Piping, Hydrant valves hoses and other accessories.

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    I. Sprinkler system:

    This is water based system operated automatically through pressure

    sensing devices or through specially designed deluge valve. The

    water delivered is spread on desired object to extinguish fire.

    The temperature rise during fire activates sprinkle head which in turn

    sprays water in the fire area

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    II . Hydrant system:

    This is also water based system and can be operated either manually or

    automatically. In this system pressurized water can be used for

    extinguishing the fire. The operation of the system is governed by a

    pressure-switch mounted on hydrant line near the pump discharge. The

    delivery line is connected to a network of pipe lines and system is

    pressurized.

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    In case of fire, when a hydrant valve is opened, a pressure drop is

    created in the system giving signal to control panel and thereby

    starting motor or diesel driven fire water pump. This pump can be

    stopped manually.

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    Rules & Regulations:

    TAC/NFPA 20 has recommended various parameters for selection

    of duty point for FW pump sets.

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    .

    . TY

    T ITY

    ( )

    ( I)

    .

    ( )

    1) B 28 18 750 80-150 1500

    2) B 28 - 30 1000 80-135 1500

    3) B 35 18 1250 80-150 1500

    4) B 35 22.5 1500 80-150 1500

    5) B 35 30 2000 80-135 1500

    6) B 42 18 2500 100-150 1500

    7) B 42 22.5 3000 125-150 1500

    8) B 42 30 3500 125 1500

    IFUG FI U V I U I ( V. . )

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    Specific Requirements for Pumps and Prime

    Movers TAC/NFPA 20

    1. P MPS (MAIN FW)

    More reliable/Energy savings/Efficiency becomes secondary in

    consideration.

    Pump should start immediately.

    Pump should develop desired head with desired capacity

    immediately.

    The pump should be kept in primed condition.

    The pump should have flat characteristic curve.

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    FW pump should develop 150% discharge and total head developed

    shall be at least 65% of the rated head.

    The MOC of impeller, casing ring, shaft sleeve, stuffing box, bush

    should be made in non-corrosive material preferable of bronze or

    brass. Pump coupling shall be directly coupled.

    Belts driven pumps are not acceptable.

    Shut off head shall not exceed 120% of rated head in case of

    horizontal pumps & 140% of rated head in case of vertical pumps.

    For pumps with negative suction, a foot valve with suitable primingarrangement is provided.

    TAC has approved our vertical turbine pumps, centrifugal pumps

    and end suction pumps with motor/engine.

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    The most interesting point about fire fighting pumps is that

    its not supposed to use at all most of the times. Hence

    careful consideration is to be given to avoid corrosion of

    pump components and sticking of rotor unit to the stationary

    components in idle condition.

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    Jockey pump:Jockey pump:

    To compensate water leakage in fire fighting loop a small jockey of

    adequate capacity is used.Its main function is to maintain pressure in the system and hence no

    special requirements are specified in TAC manual.

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    EN INE :EN INE :

    Engine should accept load within 15 seconds from receipt of fire

    signal.

    Engine can be only naturally aspirated, turbo charged either air or

    water cooled type. Engine shall be capable of operating continuously of full load at

    desired site for a period of six hours.

    Engine shall be provided with adjustable governor to control the

    engine speed within 10% of its rated speed under any conditions of

    load, upto full loading rating.

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    Engine rating after correction for altitude shall have BHP rating atleast

    20% greater that max. bhp required to drive the pump at its duty

    point and in no case less that bhp required at 150% of its rated

    discharge.

    The coupling between pump and engine shall allow each unit to be

    allowed without disturbing to others.

    TAC recommend cooling system

    a. Heat exchanger cooling.

    b. Radiator cooling.

    c. Air cooling.

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    Exhaust should be fitted with silencer, exhaust piping and total back

    pressure should not exceed 2 mercury column.

    Fuel tank with level gauge will be fitted & sufficient to run the

    engine at full load.

    Light hazard - 3 hrs

    Ordinary hazard - 4 hrs

    High hazard - 6 hrs

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    Automatic starting by means of battery powered.

    Electric starter shall be provided. The battery capacity shall be

    adequate for 10 consecutive starts without recharging. Suitable

    battery charging device to charge batteries on trickle and boost to be

    provided.

    Engine shall be run for the period of at least 5 minutes of each day.

    Rotating components shall be covered with protective guards.

    Engine with air starting/Hydraulic staring shall be recommended as

    perTAC/NFPA 20 as and when required.

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    KBL can offer the pump other than TAC approved duty point

    from wide range of Our products, also we can show string test

    of pump along with brought out instruments in our laboratory

    before dispatch.

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    HEAT EXCHAN ERWATERFLOW /

    PRESS RE

    MINIM MWATERFLOWAT 90 DE . TO HEAT

    EXCHAN ER LIT/MIN. ( PRESS RE : 100 PSI )

    ENGINE MODEL 1500 RPM 1800

    RPM

    N 495 114 143

    NT/NTA/495 & NT 743 151 189

    NT/NTA 743 & N 855 175 219NT/A 855 240 300

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    Performance engine especially those naturally aspiration, get seriously

    affected with change in altitudes, atmospheric temperature and presence

    of water vapor in air.

    This is because of all these factors collectively reduced quantity of

    0xygen available for burning the fuel to drive the engine.

    Engine derating as per NFPA 20

    a. Altitude

    For each 305 m altitude above standard condition (91.4 m) and deduction in

    3% on engine HP

    b. Temperature Every 5.6 c rise above 25 c in ambient temperature a

    deduction of 1%

    c. Humidity deration not required as per TAC/NFPA20.

    Deration of Engine

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    MOTORS:

    Electric supply to the pumping sets shall be entirely independent of all

    others electric equipment.

    Under volt release and no volt collect of the circuit breaker shall be

    removed so as to permit the motor to work under any condition.

    The motor shall be continuos rating type and shall have power rating

    equal to HP required to drive the pump at 150% of its rated

    discharge.

    Motor shall be totally enclosed type or drip proof type with class B

    insulation.

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    Theory of operation:

    Under normal conditions the entire system is under pressure. Under

    pressure there shall be always leakage. Due to this pressure will

    keep falling. This loss of water is compensated by jockey pump.

    The pressure switch for jockey pump is adjusted slightly below the

    system pressure so that pump starts when limit is reached and stops

    when system regains its desired pressure.

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    During fires sprinkler/hydrant evacuated automatically and gets opened

    and starts spray the water. Due to this system pressure drop very

    fast. But since water demand is very high, at lower pressure motor

    operated fire pump will start. If it also fails to compensate and

    stand by diesel engine will start working.

    KBL can supply wide range of fire fighting sets. KBL pumps and

    accessories satisfies the requirements of TAC/ NFPA 20.

    Most of our models are approved by TAC/UL.

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    The following major accessories are generally required in the fire

    fighting package

    1. Right angle ear Box:

    Gear box shall have a service (V.T pump only) factor 1.5 to provide

    power transmission of prime mover to vertical shaft of pump.

    Water cooler as well as, air cooled hollow shaft gear box are

    available in market. The cooler material can be steel or cupro-

    Nickel (Sea Water) to suit liquid conditions. Gear unit should

    have thrust bearing of adequate size to take downward thrust of

    pump. It should also have non reverse ratchet arrangement to avoidreverse rotation of pumps. The locking arrangement on the gear

    box with pump vertical shaft shall ensure proper locking.

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    2. Propeller Shaft:

    It couples and transmits torque to gear box shaft from engine

    flywheel. It shall have service factor of 1.75 for continuos

    duty operation. It will have axial slip and provision for

    angular and axial miss alignment.

    The diaphragm coupling/holset coupling shall be supplied between

    engine flywheel and propeller shaft/pump.

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    3. Common Base/Separate base for engine and pump:

    we can supply common base which can take complete weight of all

    systems and also provide space for mounting various instruments.

    Good design significantly contributes towards reduction of

    vibrations. Suitable anti-vibration mountings can be supplied to

    avoid transmission of vibration to the supporting structure.

    Alternatively separate base plate for engine and sole plate can be

    supplied in case old vertical turbine pumps.

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    G.A DRAWING WITH COMMON BASE :

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    GA DRAWING WITH DIFFERENT BASE

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    GA DRAWING WITH SCT PUMP

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    4. Diesel Fuel Tank:

    Fuel Tank should be sized as per customers requirement, while deciding

    location of fuel tank it is to be noted that required flow of fuel shall

    come to the engine by gravity feed only to meet the NFPA 20

    requirements.

    Fuel tank should be equipped with flame arrester in vent line, isolation

    valve for tank to drain and over flow pipe line, level switch to sense

    the level of fuel in fuel tank and give appropriate signals to control

    panel. A separate level indicator will be provided to give visual

    indication of fuel level in the tank.

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    Capacity of fuel tank considering 8 hours continuos running of engine

    Fuel tank Engine type

    size in liters

    200 N 495F

    300 NT 495F, N743F, N855

    500 KT/A 1150F, V/VT, UTA - 1710F

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    FUEL TANKCONNECTIONS :

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    5. Circulation Relief alve:

    It can be installed on delivery line and set below the shut off pressure (at

    min. flow app.. 40%).

    It shall provide flow of sufficient water to prevent the pump from

    overheating

    Circulation relief valve is not required for engine with heat exchanger, as

    secondary cooling flow is going though heat exchanger.

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    7. Automatic air release valve:

    Air release valve can be installed in pump delivery pipe line to ensure the

    release of air trapped in column, it shall be sufficiently sized to

    allow maximum rate of air release. MOC depends on liquidshandled.

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    8. Pressure Switches:

    Pressure switches are generally of Donfass or equivalent. They can set to

    any point within range of 0 to 10 kg/cm2.

    9. Secondary engine cooling water piping:Pumping water is used for engine cooling system. The connection for

    cooling water is taken from pump delivery. The cooling arrangement and

    its scope shall be generally as per NFPA 20 guidelines.

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    T

    SC

    W

    T

    I

    T

    .

    UCI

    BY

    SS B

    U I

    J

    I TY TY

    ST

    I

    WH

    C

    CK

    I

    I

    I

    F

    B

    F

    B

    V

    V

    SECONDARYCOOLING ARRANGEMENT :

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    10. Batteries & Battery Charger :

    Normally 24V battery is used for starts (12 V two batteries are connected

    in series) also as per NFPA 20, one is taken in line after charging and

    standby is kept after charging.

    3 m long cable with lugs, each for positive and negative terminal and 0.5

    m interconnecting cable are standard scope of supply.00

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    11. Instrument Panel:

    This is incorporated to indicate overall conditions of the system

    at pump cooling water circuit and pressure indication in pump

    suction and delivery line.

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    INSTRUMENT PANEL:

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    12. Automatic Control Panel:

    control panel is incorporated in fire fighting system for immediate start

    of the pump.

    It stars engine automatically when the hydrant pressure falls in the

    main hydrant line.

    Also control panel keeps constant watch on the engine conditions by

    giving audio visual indications for unhealthy conditions.

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    Audio visuals signals for

    Engine fails to start

    Lube oil low pressure

    High water temperature

    Fuel Level low

    Engine over speed

    Visual indication

    Engine running normal

    Battery charged

    Fuel level normal

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    Selector switch for:

    automatic starting

    Trickle/Boost battery charging

    Lube oil low pressure

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    14. Exhaust Piping:

    the engine exhaust is routed out side the pump house through exhaust

    piping.

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    EXHA ST PIPIN :

    STANDARD SCOPE OF S PPLY

    PIPE : 10M LONG, 2.77MM THICKNESS,BENDS 90DEG SHORD,

    MS CONFIRM TO ANSI B16-9,FLANGES 4 NO.ALONGWITH

    FASTNERS.

    S . I XH UST

    SIZ

    CI / / T/ T

    CI / T VT

    K / T

    K /6S T

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    Sr.No Pump Make Split case T. Pumps Remarks

    1. Common base (P+M)

    (P + E) KBL

    N/A

    2.

    Separate base

    (P+E) KBL N/A

    3.Coupling guard(M&E) KBL

    4

    Foundation bolt

    (M&E) KBL

    5.

    Fuel tank

    ( E) KBL

    6.

    Battery

    (2 Sets) (E) ) (3m cable +

    0.5 m)

    EXIDE

    7.

    Sec cooling piping

    a. Heat exchanger only KBL b. Radiator / air

    cooled (E)

    CIL/

    KOEL N/A N/A

    Scope of supply of accessories:

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    Sr. o m ake Sp lit case V . mps emarks

    8. uto control anel chyut

    ( )

    9.

    Instrument panel

    ( ptional)

    10.

    ressure itch

    ( ptional) ( )

    11

    ressure auge

    ( ptional) ( )

    12.

    xhaust iping

    ( ptional)

    13. ight angle earbox. marillo /

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    Sr. o mp Make Split case V . mps emarks

    14. ropeller sha t ( )

    ( nly spider/ olsetcoupling)

    nique

    ( )

    15. irculation elie alve( )

    namar

    16. irculation elie alve

    ( ) / /

    17. elie alve ( )

    18. ir release valve ( )

    NOTE : Insulation for Exhaust pimping can be made at site only

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    CALCULATIONS FORV.T. PUMP

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    I ) RATED DISCHAR E ( NET FLOW ) = 450 M3/HR.

    A) DISCHARGE REQUIRED FOR SECONDAR COOLING

    ( FROM GIL RECOMMENDATION FOR V 1710 ENGOF 1500RPM )

    = 40 M3/HR.

    B) GEAR BOX COLLING ( AMARILLIO GEAR BOX )

    = 1.8 M3/HR.

    TOTAL FLOW REQUIRED = (450 + 40.7 + 1.8 ) M3/HR

    = 492.5 M3/HR

    = 136.81 L/S.

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    II) BOWL HEAD CALC LATION :

    A) SP. GRAVIT = 1.03 ( SEA WATER )

    B) COLLAR DECK ELEVATION( FLOOR LEVEL ) = 17.458 M

    C) MINIMUM WATER LEVEL BELOW CHART DATUM = 7.0 M

    D) PUMP DISCHARGE C/L ABOVE COLLAR DECK = 0.565 M

    E) PRESSURE HEAD AT DELIVER C/L = (10.6 X 10)/1.03

    = 1 02.91 M

    F) DIST.BETWEEN MIN.WATER LEVEL & DELIVER C/L = 17.458+7+0.565

    = 25.03 MG) VELOCIT HEAD = Q/ A = 0.13631 / (A)

    = 2.787 M/ S.

    H) H = INTERNAL HEAD LOSS IN PUMP = 1.21 M

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    TOTAL BOWL HEAD ={ DELIVER PRESSURE + STATIC LIFT

    + INTERNAL HEAD LOSS + (V2/2g)}

    = 102.913 + 25.023 + 1.21 + 0.396

    = 129.541 M

    BOWL INPUT = ( Q X H ) / ( 102 X BOWL EFFICIENC )= (136.81 X 129.541) / (102 X 0.75 )

    = 231.666 X 1.03

    = 238.62 KW

    MAX. BOWL INPUT FOR 150 % Q ( FROM CURVE ) = 255 KW

    SHUT OFF POWER ( APPROX.) = 200 KW

    SHUT OFF HEAD FROM CURVE = 182 M

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    P MP : BHR 35 - 22.5 DE THREE STA E P MP .

    FIRE FI HTIN CONDITION

    A) SHUT OFF SHOULD BE < 140 HDP

    < 1.40 X 129.541 M

    ACTUAL HEAD 174 M < 182 M

    B) FOR 150 % Q H > 0.65 HDP

    150 X 136.8 = 205.21S > 0.65 X 129.541 M

    FOR 205 S HEAD > 84.55 M

    AS PER 92 M

    SO,

    BOTH NFPA20 CONDITION ARE SATISFIED.

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    S SPENSION LEN TH CALC LATION :

    A) COLLAR DECK ELEVATION : 17.458 M

    B) CHART DATUM TO MIN W.L. : 7.0 M

    C) POSITION OF E E OF LEVEL OF FIRST IMPELLER FROMMIN.WATER LEVEL :3600 MM

    D) IMPELLER E E TO BELL-MOUTH EDGE : 258 MM

    E) COLLAR DECK TO PUMP MOUNTING : 265 MM

    TOTAL SUSPENSION LENGTH

    (17458+7000+3600+258+265) = 28581 MM.

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    GEAR BOX SELECTION :

    MAX.BOWL INPUT = 255 KW X 1.36

    = 346.8 HP + 2.1 HP ( SHAFT LOSSES )

    = 348.567 HP.

    POWER REQUIRED AT GB SHAFT = 348.5676 / 0.96 ( 96 % GEAR EFF. )

    = 363.09 HP.

    CONSIDERING 1.5 HP LOSS IN PULLE = 363.09 + 1.5 HP

    = 364.59 HP= 365 HP

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    IN BUILT SERVICE FACTOR IN GEAR BOX : 1.5

    SAFET FACTOR : 1.5

    RATING OF GEAR BOX = (365 X 1.75) / 1.5

    = 425.83 HP.

    GEAR BOX SELECTED HH 425 WITH 425 HP AT 1750 RPM.

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    ENGINE SELECTION : (AS PER TAC 7.4.5.2.3) :

    ENGINE H.P. RATING WILL BE

    A) 20 % IN EXCESS OF THE MAXIMUM BHP REQUIREDTO DRIVE TO THE PUMP AT D.P.

    BPKW = 238.62 X 1.36 + 2.1

    ( BEARING.& TRANSMISSION LOSSES )

    = 326.6 X 1.20

    = 391 HP

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    B) THE BRAKE H.P. REQUIRED TO DRIVE THE PUMP AT 150 %

    OF ITS RATED DISCHARGE = 255 KW X 1.36

    = 346.8 HP.

    SO,ENGINE SELECTION = 420 HP .

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    ENGINE DERATING AS PERNFPA 20 :

    Altitude : 500 mTemperature : 40 CHumidity : 40 % at 40 C

    Application deration percentage for :

    a) Altitude : {(500 - 91.4 ) / (305)} x 3b) Ambient temp. : {(40.25/5.6) x 1 % }

    c) Humidity : N.A.

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    TOTAL = a + b + c= %

    Selected H.P. = 420 H.P.

    H.P.Avaliable after deration = 420 { 100-(_ _)/100 }= _ _ BHP.

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    GUIDE LINES FOR GENERATION OF

    SPARE PARTS BUSINESS

    FOR V.T. PUMPS AND LARGE SPILT CASE PUMPS

    Use of ISI- 6 strainer instead of S galvanized in case of

    turbid liquid.

    Provision of bottom bearing arrangement in bell mouth for

    improvement of pump life. The bottom bearing provides supports

    to lower part of the impeller shaft which enhance the life of the

    pump.

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    Study the site condition, sump layout, liquid details and

    recommend suitable material of construction to over come the

    problem, if any.

    Recommend impeller material CF or C 6 if liquid

    contains abrasive sand particles or chloride contents exceeds

    PPM.

    Impeller guide piece material CF M or C 6 M instead of Cast

    Iron for BHM and BHQ type pumps.

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    Recommend improved design of discharge case having higher

    size [ ] bleed off connection and use of schedule / pipes

    instead MS IS: pipes in order to avoid excessive leakage

    through tube tension nut.

    Use of Thordon type bearing and hardened shaft sleeve I case

    of turbid liquid.

    Suggest provision of mechanical locking arrangement for

    Thordon type bearing to over come the problem of loosening and

    coming out from housing.

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    Recommend higher shell thickness or RW column pipes to over

    come water leakage problem through welding joint.

    Replacement of conical / Screwed coupling / old type

    coupling for higher size shaft diameters [ i.e. above 6

    mm diameter] by muff coupling of improved design.

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    Recommend cast iron discharge head which has better

    dampening properties in place ofMS discharge head or

    suggest integral MS ischarge head [ ischarge head and

    motor stool] to over come vibration problem or suggest to

    reduce bearing span after taking prior approval ofPDE.

    Recommend improved design of stuffing box with throttle

    bush arrangement to avoid excessive leakage through stuffingbox.

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    Recommend hardened Stainless Steel material for shaft

    sleeve under stuffing box to avoid fast wearing of sleeve below

    gland packing to minimize stuffing box leakage.

    Replacement ofMitchell type bearing / lacier type thrust

    bearing by antifriction bearing for reducing bearing loss. If at

    clients end antifriction bearing is giving trouble then suggest

    use ofMitchell type / lacier thrust bearing.

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    Conversion of oil lubricated pumps into self/external water

    lubricated pumps with hardened Stainless Steel shaft sleeve and

    Thordon/ rcot/Finostos bearings.

    Replacement of old imported pumps with KB pumps of

    improved design.

    Replacement of competitors large size V.T. Pumps bowl

    assembly for old imported pumps or Indigenous pumps by KBpumps for improved performance.

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    Pump operating parameters to be verified based on system

    head. If client requires higher discharge or system head is more

    then suggest use of higher impeller diameter by checking

    possibility of/margin on motor kW. If existing motor rating is not

    sufficient, then select new efficient pump type. If client requires

    both head and discharge more then check possibility of

    changing only pump unit.

    S

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    Suggest superior material to over come the problem of fast

    wearing of cast components considering water analysis.

    Recommend alternative material for pump component in case

    financial constraints of customer [e.g. CI impeller instead of

    Bronze, . % iCI instead of . to % iCI], keeping him

    informed about less life of component as compared to original

    supply.

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    Conversion to separate thrust bearing in pump inarge V.T. Pumps instead of combined thrust-bearing

    design provided in motor.

    Suggest to replace all rings, fasteners, gaskets,keys during overhaul of V.T. Pumps.

    Recommend CF M impellers instead of BRONZE forspilt case pumps supplied in sugar industries to

    enhance the life.

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    Recommend use of mechanical seal inplace of glandpacked stuffing box arrangement for split case pumps

    for reducing leakage as well as friction loss.conversion of grease lubricated split case pump into oillubricated pump to increase the bearing life of thepump.

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    Suggest to replace metallic water deflectors inplace of

    rubber to avoid entry of water in bearing in case of oil

    lubricated spilt case pumps.

    Spare impeller of 6UPH and above pumps shouldbe taken with impeller rings as standard supply.Impeller rings will be supplied fitted on impeller.For UPH/UPL pumps order for pump shaft should betaken with sleeve nuts and bearing nuts.

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    Refurbishment & Retrofitting Of Existing Pumps.

    A) Needs For Refurbishment & Retrofitting.

    1) Upgrading Of Unit Capacity At Minimal Investment.2) Adding Capacity To The Existing At Optimum Cost.

    3) To Achieve Energy Saving.

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    B) Basic Approach For Refurbishment

    1) Review Of Operational History Of The Pumping Equipment

    & System

    2) Analysis Of Data,records & Maintenance Of Overall

    Records.3) Visual Examination Of Failed Pump Parts To Access

    Whether Cause Of Failure Is Due To Aging Or Due To

    External Cause Such As Corrosion,erosion Etc.

    C) Factors Responsible For Aging Of Pump

    1) Prolonged Off Design Operations.

    2) High & Low cyclo Fatigue.

    3) Wear & Galvanic Corrosion Due To Improper Selection Of MOC.

    H KBLC P ti i t I R f bi hi Of

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    How KBLCan Participate In Refurbishing Of

    arious Pumps

    This Involves Review Of Various Design Parameters

    Of Pumping Equipment In The System.

    1) Variation In System Head Parameters Including The Variation

    In The Static Head,water Level Over The Day & ears.

    2) Study Of The System Resistance Of Discharge Piping Network For

    Estimating Shifting Of Operating Point Of Pump.

    3) Any Major Changes In The System, Such As Suction Intake Design

    Piping System,after Installation Of Pump That Were Not Consider-

    Red In Design Change.

    4) Post Operation & Failure History Of The Pump,overall Operation

    Vibration Behavior.

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    5)water Quality Monitoring & Its Record For Correlation Of Pump

    Operation.

    6) Failure Pattern Of Worn Out Components.

    7) Flow Condition In The Sump.8) Transient Behavior Of The System .

    9) Foundation Delivery Pipe & Driver Motor Details.

    10) Influence Of Piping System & Foundation On The Vibration

    Performance Of The Pump.

    11) Existing Pump Performance Curve.

    12) Operation History Of The Pump At Different Flow Condition.

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    The Above StudyWill Help To :

    Identify The Most Critical Parameters & Pump Element

    Responsible For Frequent Down Time Of The Pump Operation.

    A) Determination Of The Most Optimum Pump Parameters That Would

    Match With Existing System, Sump Design,motor,foundation &

    Piping Etc.

    B) Extent Of Modification Permitted In Existing System In Terms Of

    Flow , Efficiency Improvement ,Satisfactory Vibration Perform-NCE & Over All Increase In Availability Of Pumps.

    RETRO-FITTING FOR VT PUMP :

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    RETRO FITTING FOR VT PUMP :

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    Energy Audit

    Energy Conservation Now A Days Has Become A Prime Concern

    In Any Industry / Organization . Scarcity Of Energy & Day By DayIncreasing Cost Of Forcing All The Profit Centers To Think Over

    Energy Saving In Each &Every Activity Carried Out.

    The Government Is Also Cautions About Energy Saving . The

    Example Of These Are Kerala & Gujarat ,Where State Governments

    Made Energy Audit Compulsory In Pump Replacement Project.

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    Government Has Made Strict Company Laws For Energy

    conservation.KBL Has Conducted Energy Audits of pumps on

    Sites.Now A Days Many Parties Are Asking For Energy Audit. Hence It Is

    Very Much Essential To Start Energy Audit Of The Pumping System AtSite & Suggest The Energy Efficient Alternatives/improvements To

    achieve Energy Efficient Performance.

    During Energy Audits at Site we have noticed the Consultant Has

    selected Pump for Higher head. The Small Size Energy Efficient Pump

    Be Sufficient. This Will Save ConSiderable Amount Of Energy.


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