ANNEXURE-A
SALIENT TECHNICAL FEATURES
ANNEXURE-I
SALIENT TECHNICAL FEATURES
(Cooling Towers and pumps st-I & II )
PLANT OVERVIEW
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
EQUIPMENTS INVOLVED
The equipments under consideration consists of Cooling Towers and vertical and horizontal pumps and associated pipe lines and valves spread all over the plant at TSTPP Site within 3 km radius.. The raw water pump house is located at a distance of 08 KM away from main plant is also comes under the purview of the subject contract.
JOBS IN BRIEF
In general the contract consists of preventative maintenance, breakdown maintenance and overhauling of the equipments mentioned below.
COOLING TOWERS:-
In stage -I there are 04 nos Cooling Towers having 11 fans/ cells in each tower of M/s RECONDO LTD., Mumbai make. The cooling towers of cross-flow induced draft type having concrete distribution basins for hot water at the top. The hot water distribution is through a butterfly valve discharging into a concrete splash chamber from where water flows onto the basin. Basin is fitted with PVC nozzles for splitting the water jet into finer jets over a wider area. The fill material is made of concrete laths. Drift eliminators are of Asbestos corrugated sheets. Cold water is collected at the bottom and discharged into an open channel. Water flow through the Tower is 33,000 M3/Hr.
The mechanical equipment consists of 65 KW induced draft fan located inside the concrete shell, 10 Meter dia fan with hollow SS drive shaft in 2-piece design, supporting bearing, gear box, hub assembly and 06 nos hollow FRP blades of aerofoil design. The gear box is of worm and wheel type with single stage reduction of Greaves Ltd V-1400 model located at height of 18 meter above ground level.
In stage-II there are 08 nos of cooling Towers of Size 130 m x 20 m.. each tower is having 10 fans/cells of M/S Paharpur make. The cooling Towers are of counter flow type with PVC film type fill. The hot water distribution is through butterfly valves discharging through PP nozzles inside the cell . Cold water is collected at the bottom and discharged into an open channel. Water flow through the Tower is 30,000 M3/Hr.
The mechanical equipment consists of 65 KW induced draft fan located inside the concrete shell, 10 Meter dia fan model HP-6-8 with single hollow SS drive shaft, gear box, hub assembly and 08 nos hollow FRP blades of aerofoil design. The gear box is of two stage reduction spiral bevel cum helical type Series 36 of M/S Paharpur make located at height 12 meter from ground level.