Standard Pre-start up checks for Boiler and Turbine
Standard Pre-start up checks for Boiler and Turbine

Standard Pre-start up checks for Boiler and Turbine

TURBINE PRE-START UP CHECKS

SL. No.EQUIPMENTNormal  status/ valueActual statusRemarks
1Drum ManholeClose  
2Supper Heater Inspection DoorClose  
3Plenum HopperClose  
4Economizer ManholeClose  
5APH ManholeClose  
6ECO & AHP common ash Hopper ManholeClose  
7ESP Field Inspection DoorClose  
8ESP hopper ManholeClose  
9Furnace ManholesClose  
10All ash hoppers KGV (Knife edge Gate valve)Open  
11ID Fan, FD Fan, PA Fan Casing Inspection DoorClose  
12Front Ash HopperClose  
13Drum Safety Valve-1No Gag  
14Drum Safety Valve-2No Gag  
15Supper Heater Safety ValveNo Gag  
16Steam drum ventOpen  
17Startup vent10%  Initially 10% open, later can be increased as per requirement
18S.H. ventOpen  
19Superheater header drainsOpen  
20Before MSSV Steam line drainOpen  
21After MSSV Steam line drainOpen  
22MSSVClose  
23MSSV By PassClose  
24All furnace header drainClose  
25IBD of steam drumClose  
26CBD  of steam DrumClose  
27HP Dosing discharge Valve & drum inlet valveOpen  
28De-aerator inlet steam valveClose  
29De-aerator outlet valve to BFPOpen  
30DM make up pump suction & discharge valveOpen  
31DM make up pump control valveAuto  
32BFP gland cooling valveOpen  
33BFP suction valveOpen  
34BFP discharge valveclose  
35BFP discharge by pass valveclose  
36BFP ARC isolation valveOpen  
37BFP balance disk line valveOpen  
38Feed Control Station 100% Isolation ValveOpen  
39Feed Control Station 30% Isolation ValveOpen  
40S.H. Attemprator Isolation ValveOpen  
41Main Steam line Drain-1 & Its trap By Pass ValveOpen  
42Main Steam line Drain-2 & Its trap By Pass ValveOpen  
43Drag chain & screw feeder statusHealthy to operate  
44ESP, APH, Economizer GatesOpen  
45DG set diesel stock100%  
46Keep Startup Fuel Stock (Bailed Bagasse) on Firing Floor100  
47Raw Water Storage Tank –80-100  
48DM tank80-100%  
49Make-up Tank80-100%  
50De-aerator level65-75%  
51Steam drum level40-50%  
52Surge/Feed Tank Level80%  
53HP & LP dosing system tank level80%  
54DM Water Parameters   
55a) pH8.8 to 9.2  
56b) Conductivity<10  
57c) Silica<0.02  
58d) HardnessNil  
59Coal bunker level80-90%  
60Coal handling plantReady to operate  
61ID, FD & PA fans suction dampers100% Open  
62  ID, FD & PA fans discharge dampers100% Close  
63APH By pass damper100% Open  
64Over Fired Air dampers (OFA)50-70% As per requirement
65ESP hopper and insulation heatersON  
66ESP rapping systemON  
67Ash Handling systemOFF AHS should be ready to start
     

TURBINE PRE-START UP CHECKS

 
SL. No.EQUIPMENTNormal  status/ valueActual Status ValueRemarks
1Cooling Tower Level80%  
2Main steam line drain valvesOpen
3Main steam line trap bypass drain valveOpen
4TSSVclose
5TSSV by pass valveclose
6Warm-up vent valveOpen
7ESVclose
8ESV inlet drain valveOpen
9Casing drain valveOpen
10Wheel Chamber drain valveOpen
11QC NRV of extraction lineClose
12PRDS line drain valvesOpen
13Isolation valve of Ejector PRDS PCVOpen  
14Isolation valve of  Ejector PRDS TCVOpen  
15Pre-ejector (Hogger) Steam valveOpen  
16Pre-ejector (Hogger) Air valveOpen  
17Ejector Steam valveClose  
18Ejector Air valveClose  
19Ejector condensate drain valveClosed  
20Ejector IInd stage steam valveClose  
21Ejector IInd stage Air valveClose  
22Rota meter inlet air vent valveOpen  
23GSC vapour fan-1 outlet ValveOpen  
24GSC vapour fan-2 outlet ValveClose  
25CEP suction valveOpen  
26CEP discharge valveOpen  
27CEP suction DP<0.8 kg/cm2  
28Ejector inlet cooling water line valveOpen  
29Ejector outlet  cooling water line valveOpen  
30PRDS safety valveHealthy  
31Isolation valve of minimum recirculation control valveOpen  
32Bypass valve of minimum recirculation control valveClose  
33Minimum recirculation control valveAuto  
34Isolation valve of Hotwell control valveOpen  
35Hotwell level control valveAuto  
36Lub. oil cooler cooling water inlet valveOpen  
37Lub. oil cooler cooling water out valveOpen  
38Lub. oil cooler oil valveOpen  
39Gen. Air Cooler cooling water inlet valveOpen  
40Gen. Air Cooler cooling water Outlet valveOpen  
41Gland Sealing isolation ValveClose  
42Gland sealing control valveOpen  
43Availability of cooing tower fansHealthy Mention Nos of available fans
44Availability of ACW pumpHealthy Mention Nos of available pumps
45Availability of Instrument CompressorHealthy Mention Nos of available pumps
46ACW suction valveOpen  
47Availability of Lube Oil pumpHealthy  
48Availability of Control Oil pumpHealthy  
49Availability of Jacking Oil pumpHealthy  
50All oil pumps suction & discharge valveOpen  
51Availability of Oil vapour FanHealthy  
52TGP emergency stop push buttonHealthy  

Comments

No comments yet. Why don’t you start the discussion?

Leave a Reply

Your email address will not be published. Required fields are marked *