2. WHAT IS BOILER AND ITS USES .
It is a steam generation device .
Fire tube and water tube .
Types of Boiler –
1. Solid:- Coal, Rice Husk, Begas, wood .
2. Liquid :- Diesel , Furnace Oil .
3. Gases :- Bio gas , Cng .
Three Pass Boiler ( Air change direction)
Three Ton Capacity (3000 Ltr Steam ) .
2MIS | Site Name | 2017-MM-DD
3. SOLID BASE BOILER
3MIS | Site Name | 2017-MM-DD
1. Solid:- Coal, Rice Husk, Begas, wood .
2. 140 Ton steam Generating steam boiler .
4. LOW PRESSURE BOILER
MAIN PARTS
4MIS | Site Name | 2017-MM-DD
1. FEED WATER PUMPS .
2. DIESEL PUMPS .
3. FORCED DRAFT FAN .
4. AIR PRE HEATER .
5. BURNER .
6. FIRE TUBES .
7. SAFETY VALVES .
8. ELCTRICAL PANEL.
6. 6MIS | Site Name | 2017-MM-DD
FEED PUMPS USED FOR MAINTANNING WATER IN TANK.
MAINTAIN WATER FOR STEAM GENRATION IN BOILER .
THREE TON WATER PER HOURS .
3000 LTR WATER = 3000 LTR STAEM .
MAX PRESSURE =10.5 KG .
FEED PUMPS
7. DIESEL PUMPS AND ITS VALVES
7MIS | Site Name | 2017-MM-DD
IT IS USED FOR DIESEL SUPPLY TO BURNER
1 2 3
8. FORCED DRAFT FAN
8MIS | Site Name | 2017-MM-DD
FIRE = AIR + FUEL + IGINATION .
THREE PASS BOILER ( BURNER , TUBES, APH ) .``
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10. BURNER
10MIS | Site Name | 2017-MM-DD
BURNER FIRE = AIR + FUEL + IGINATION
1 2
11. UV QRA2
11MIS | Site Name | 2017-MM-DD
ULTRA VIOLET CELL USE FOR FLAME SENSE .
SAFETY DEVICE IN COMBUSTION CHAMBER .
UV QRA2 IS USED FOR LFL-1.335 .
IT CAN CAPABLE TO DETECT FIRE AND
EXPLOSIONS WITHIN 3-4 MILLISECONDS ,
A TIME DELAY OF 2-3 SECONDS .
FAULTS:- SENSING ,COMBUSTION FLAME ,FIRING
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12. IGINATION TRANSFORMER
12MIS | Site Name | 2017-MM-DD
IT IS USED FOR BURNER SPARKING .
INPUT = 220VAC , OUTPUT = 2X7KV FOR 4 SEC .
IT INCREASE THE VOLTAGE FOR IGINATION .
STEP UP TRANSFORMER .
FAULTS:- SPARKING , FIRING
13. MODULATION UNIT
13MIS | Site Name | 2017-MM-DD
SERVO MOTOR , MEHANICAL MECHANISM , POSITIONER,
PCM2-6 PRESSURE CONTROLLER MODULATION .
1 MOTOR UNIT 2 FOR DIESEL 3 FOR GAS
3
14. MAIN GAS VALVES
14MIS | Site Name | 2017-MM-DD
1. MAIN GAS LINE VALVE 2. GAS LINE VALVE 3.PILOT VALVE
3
15. Modulation unit controller – Pressure Troll
15MIS | Site Name | 2017-MM-DD
Capacity 3 Ton/ Hour .
Max Pressure = 10.5 kg .
Max Cut off = 8.5kg .
16. Steam Pressure switch for Boiler Cutoff
16MIS | Site Name | 2017-MM-DD
Capacity 3 Ton/ Hour .
Max Pressure = 10.5 kg .
Minimum Cut off = 7 kg .
17. Air Pressure Switch
17MIS | Site Name | 2017-MM-DD
IT IS FOR COMBUSTION BLOWER MAIN AIR LINE .
FIRE = AIR + FUEL + IGINATION .
SUPPLY 220VAC , ONE NO AND ONE NC .
AIR PRESSURE FOR NO TO NC 5 BAR .
INTERLOCKING WITH COMBUSTION BLOWER
18. BOILER INTERLOCKING
18MIS | Site Name | 2017-MM-DD
1. LEVEL - IF DIESEL TANK LEVEL LOW BOILER WILL TRIP OR WILL NOT START .
2. LEVEL - IF WATER LEVEL IN STORAGE TANK IS LOW , BOILER WILL TRIP OR NOT START .
3. MOBERY - IF LEVEL INSIDE DRUM FALL BELOW 25% BOILER WILL TRIP .
4. STACK TEMP – FLUE GASES RAISE ABOVE 270deg BURNER WILL TRIP .
5. COMBUSTION AIR SWITCH FOR COMBUSTION BLOWER .
6. PRESSURE SWITCH - IF PRESSURE INSIDE THR DRUM IS HIGH , BOILER WILL CUT OFF .
7. PHOTO CELL – IF FLAME IS NOT GENRATED IN BURNER , BOILER WILL TRIP .
8. MODULATION UNIT – IF MODULATION UNIT FEED BACK IS NOT RECEIVED , BOILER TRIP .
9. PRESSURE – IF GAS IS LESS THEN 30mbar , BOILER WILL TRIP .
19. Water level gauge and Mowbray Switch
19MIS | Site Name | 2017-MM-DD
1 low water level 2 Extra water low level 3 Gauge Glasses
20. Sequence Controller LFL-1.335
20MIS | Site Name | 2017-MM-DD
1. 24 TERMINALS , 220VAC SUPPLY.
2. PRE PURGE TIME -31 Sec .
3. PILOT TRIAL FOR IGINATION – 4 Sec .
4. MAIN TRIAL FOR IGINATION - 4 Sec .
5. MODULATION UNIT – 10.5 Sec .
6. POST PURGE TIME – 12 Sec .
7. FLAME FAILUR RESPONSE TIME – 1 Sec .
OLS , LGP , HGP,LWS , HIGH LIMIT , POC , CAB , CAS , LOW AND HIGH FIRE.
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21. FLUE GAS TEMPURATOR SENSOR
21MIS | Site Name | 2017-MM-DD
STACK TEMP – FLUE GASES RAISE ABOVE
270deg BURNER WILL TRIP .
1. IT USED TO SENSE HEAT TRANSFER SYSTEM .
