SALIENT TECHNICAL FEATURES
(ARC For Boiler Pressure Parts 2014-15)
NTPC Talcher-Kaniha (TSTPS) plant is located in Kaniha block under Talcher sub-division of Angul district in the state of Orissa.
Nearest Town : Talcher 26 KMs
Nearest Railway Station : Talcher 29 KMs
Nearest Airport : Bhubaneswar 180 KMs
INSTALLED CAPACITY
STAGE - I - 2 Units each 500 MW - Total 1000 MW
STAGE- II - 4 Units each 500 MW - Total 2000 MW
Stage-I Boiler:- 2 X 500 MW ,Once Through Tower Type, Single pass boiler
No second pass, Maximum Height of Boiler:- 92 Mtr.
Make:- Stein Industries, France,
All the coil banks, i.e. Economiser-1, Economiser-2, LTRH,
HTSH, HTRH, ITSH are arranged horizontally.
In addition to main Boiler following equipments are also involved:-
64 Nos of Wall Blower and 56 Nos of LRSB per boiler. Boiler is equipped with 16 nos Spring Loaded safety valves, 8 Electromatic Relief valves .All Boiler valves except the control valves/Block valves are of BHEL make and mostly are under size 125 Nb. Boiler Burner is having 40 coal nozzles & 20 Oil guns.
Stage-II Boiler:- 4 X 500 MW, Circulation type two pass boiler with Drum.
Maximum Height of Boiler:- 85 Mtr. Make:- BHEL,
Three banks of Economiser, Two banks of LTSH and
Divisional Panel, Platen Super Heater, Reheater are arranged vertically.
In addition to main Boiler following equipments are included per unit:-
88 Nos of Wall Blower and 34 Nos of LRSB per boiler. Boiler is equipped with 16 nos Spring Loaded safety valves, 8 Electromatic Relief valves .All Boiler valves except the control valves/Block valves are of BHEL make and mostly are under size 125 Nb. Boiler Burner is having 40 coal nozzles & 20 Oil guns.
In general the contract consists of preventative maintenance, breakdown maintenance and overhauling of Soot Blowers etc.
Major jobs included in this contract are Boiler Tube Failure Rectification (IBR job) ,Stress relieving of weld joints Erection & Operation of Cradle type access systems (Sky Climber), Servicing of Conventional BHEL make valves, Control valves & block valves of MIL/ Masonielan/ IL make, Boiler Oil guns cleaning/repair, Overhauling of all LRSBs & WBs (Only for Unit-1 & 2)
Deployment of manpower in all shifts of running units for assisting in Soot Blowing operation., Normal break-down of Soot blowers etc. Job involves boiler water washing and erection of temporary platforms in the boiler, over coil banks for accessing various coils in Inter Temperature Super Heater & high Temperature Super Heater, High Temperature Reheater etc. Welding of tube joints with IBR approved and tested HP welder. Preventive maintenance in boiler normally is done in LRSBs, WBs and oil guns of all six units It also calls for liaisoning with IBR inspector for licensing.