PPT On FUEL OIL SYSTEM
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Light diesel oil (LDO)
High speed diesel oil (HSD)
Heavy Furnace oil (HFO)
Low sulphur heavy stock (LSHS)
2. Use of different types
LDO & HSD normally used in
Auxiliary boiler
Ignitor for certain boiler design.
HFO generally used for power boiler
3. Fuel Oil:
Three Liquid Fuel used in power plant
1.Heavy Fuel Oil(HFO)
2.LSHS(Light sulphur Heavy stock)
3.HSD(High speed diesel)
Oil firing is preceded by:
1.Lowering viscosity and increasing flowability on heating for better combustion
2.Droplet formation on atomization
3.Combustion initiation by High energy spark ignition.
4. FUEL OIL SYSTEM:
Purpose: To establish initial Boiler Light up.
To support the Furnace flame during Low Load Operation
FUEL OIL SYSTEM CONSISTS OF:
Unloading of fuel oil and storage system
Transfer of fuel oil to pressurising pump house
Drain oil system
Aux steam & condensate system
Electrical Tape tracing system:
Instrumentation & control system
Oil water separator system.
5. FO unloading system
Heavy oil is received at the site in railway tankers of 20 tonne capacity each
An unloading header with number of receiving points for number of wagons unloading is provided.
The connections between loading header and tankers are through rubber flexible hosepipes.
Railway tankers are equipped with steam heating coils.
6. UNLOADING OF F.O AND STORAGE SYSTEM
The Fuel oil is supplied by railway wagons. The installation has been Provided for unloading 76 wagons simultaneously.For this purpose one Number unloading header of size 400 NB have been laid between two Railway tracks with 84 nos. 80 NB branches with plug valves which Surve as unloading points.400 NB branch is taken from the unloading Header to the pump house which surves as the suction header for 5 nos. Unloading cum transfer pump.4 nos. pumps is used for unloading and I number as stand by.Each pump is 100 cm3 per hour capacity.
At suction side of each pump simplex busket type strainer with 40 mesh Straining element is provided to make the oil free from foreign particles Which may cause damage to pump rotor.
For storing the unloaded oils 3 nos. vertical cylinder,fixed roof vented Type storage tank of nominal capacity 2826 cum has been stalled.
7. TRANSFER SYSTEM:
Oil from any of the 3 storage tanks can be transferred to the pressurising Pump house by gravity through 200 NB transfer header.It is also possibl To transfer oil from one storage tank to another , and for this purpose 200 Nb branch connection is taken from each section of transfer line of Each storage tank and a 350 NB common recirculation line is installed. Oil through this recirculation line would flow to suction header of un- Loading pumps and through the pump oil can be taken to any desired Storage tank by opening the desired inlet vv of storage tank.
8. For more please refer our PPT. Thank You.
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FUEL OIL SYSTEM
Presentation Transcript:
1. Types Of Fuel OilLight diesel oil (LDO)
High speed diesel oil (HSD)
Heavy Furnace oil (HFO)
Low sulphur heavy stock (LSHS)
2. Use of different types
LDO & HSD normally used in
Auxiliary boiler
Ignitor for certain boiler design.
HFO generally used for power boiler
3. Fuel Oil:
Three Liquid Fuel used in power plant
1.Heavy Fuel Oil(HFO)
2.LSHS(Light sulphur Heavy stock)
3.HSD(High speed diesel)
Oil firing is preceded by:
1.Lowering viscosity and increasing flowability on heating for better combustion
2.Droplet formation on atomization
3.Combustion initiation by High energy spark ignition.
4. FUEL OIL SYSTEM:
Purpose: To establish initial Boiler Light up.
To support the Furnace flame during Low Load Operation
FUEL OIL SYSTEM CONSISTS OF:
Unloading of fuel oil and storage system
Transfer of fuel oil to pressurising pump house
Drain oil system
Aux steam & condensate system
Electrical Tape tracing system:
Instrumentation & control system
Oil water separator system.
5. FO unloading system
Heavy oil is received at the site in railway tankers of 20 tonne capacity each
An unloading header with number of receiving points for number of wagons unloading is provided.
The connections between loading header and tankers are through rubber flexible hosepipes.
Railway tankers are equipped with steam heating coils.
6. UNLOADING OF F.O AND STORAGE SYSTEM
The Fuel oil is supplied by railway wagons. The installation has been Provided for unloading 76 wagons simultaneously.For this purpose one Number unloading header of size 400 NB have been laid between two Railway tracks with 84 nos. 80 NB branches with plug valves which Surve as unloading points.400 NB branch is taken from the unloading Header to the pump house which surves as the suction header for 5 nos. Unloading cum transfer pump.4 nos. pumps is used for unloading and I number as stand by.Each pump is 100 cm3 per hour capacity.
At suction side of each pump simplex busket type strainer with 40 mesh Straining element is provided to make the oil free from foreign particles Which may cause damage to pump rotor.
For storing the unloaded oils 3 nos. vertical cylinder,fixed roof vented Type storage tank of nominal capacity 2826 cum has been stalled.
7. TRANSFER SYSTEM:
Oil from any of the 3 storage tanks can be transferred to the pressurising Pump house by gravity through 200 NB transfer header.It is also possibl To transfer oil from one storage tank to another , and for this purpose 200 Nb branch connection is taken from each section of transfer line of Each storage tank and a 350 NB common recirculation line is installed. Oil through this recirculation line would flow to suction header of un- Loading pumps and through the pump oil can be taken to any desired Storage tank by opening the desired inlet vv of storage tank.
8. For more please refer our PPT. Thank You.
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