fuel oil system purpose
TRANSCRIPT
7/30/2019 FUEL OIL SYSTEM Purpose
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24 December 2012 PMI Revision 00 1
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• Initial firing of the Boilers
• Flame stabilization
• Low load operation
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• Light diesel oil (LDO)
• High speed diesel oil (HSD)
• Heavy Furnace oil (HFO)
• Low sulphur heavy stock (LSHS)
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• LDO & HSD normally used in
• Auxiliary boiler
• Ignitor for certain boiler design.
• HFO generally used for power boiler
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TYPICAL HFO SPECIFICATIONS
• Standard: IS 1593 / 1971
Grades LV-MV-HV
• Flash point: 660C (minimum)
• Viscosity (Max.): 80-120-370 CST at
500C
•
Gross heating value: 10270 Kcal/kg• Total Sulphur (Max.): 3.5-4-4.5%by weight
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Presentation Outline
• FO unloading system
• FO storage
• FO pressuring pump house
• Safety procedure in FO handling
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FO unloading system
• Heavy oil is received at the site in railway tankersof 20 tonne capacity each
•
An unloading header with number of receivingpoints for number of wagons unloading isprovided.
• The connections between loading header and
tankers are through rubber flexible hosepipes.• Railway tankers are equipped with steam heating
coils.
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Transfer P/P
Strainers
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HEATER
Steam
R/C
O/L
I/L
FILLING HDR
Suction HDR
Return Hdr
Return oil
From Unit
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Suction Header Return Header
Recirculation P/P
OILTANK
OILTANK
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Flash
Tank
Return SteamFrom Heater
Steam to Atmosphere
Water to Sump Pit
Sump Pump
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DRAINHDR
DrainTank
OilTank
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HOTV
HORV
CVOil Guns
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