Triveni Offer_17.1 MW

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Transcript of Triveni Offer_17.1 MW

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    I N D E X

    SECTION – I TECHNICAL

    Chapter – 1 : Scope of Supply

    Chapter – 2 : Technical Specifications

    Chapter – 3 : Performance Parameters

    Chapter – 4 : Utilities to be provided by Purchaser

    Chapter – 5 : Limits of Tender and Exclusions

    Chapter – 6 : List of sub-suppliers

    Chapter – 7 : List of Tools and Tackles

    Chapter – 8 : Drawing & Documentation Schedule

    Chapter – 9 : Q A P

    Chapter – 10 : Recommended Steam Purity chart

    SECTION – II COMMERCIAL

    Chapter – 1 : Price, delivery and special terms

    Chapter – 2 : General terms and conditions of sale

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    SECTION – I CHAPTER – 1

    SCOPE OF SUPPLY

    I. MECHANICAL

    Steam Turbine

    Multistage, Nozzle governed, Horizontal spindle, two bearings, Impulse/Reaction type Injection cum Condensing steam turbine (Non API) with: - Hydraulically operated Stop & Emergency Valve with integral steam strainer for inlet - Hydraulically operated Throttle/Governing valves for inlet steam flow control. - In built exhaust hood spray system.

    Gearbox - Double helical, single reduction Gearbox with hardened & ground gears. The design will be

    with a service factor of 1.3 AGMA.

    Couplings

    - Non-lubricated, steel laminated flexible type, high-speed coupling and low speed couplings with coupling guards.

    Governing System

    - Electronic governor (Wood ward 505 E) complete with electro-hydraulic actuators and magnetic speed pick ups

    - Hydraulic accumulator - Control oil filter - Interconnecting control oil piping

    Condensing System

    Condensing system comprising of: - Shell & Tube type, horizontal, divided water box (with sacrificial anodes) type condenser

    with integral hot-well- Steam jet air ejector system complete with: Twin stage main ejectors (1 working + 1 standby) Start up ejector (hogging) with silencer Inter and after condenser

    - Vertical Condensate extraction pumps of Canister type(CEP) with motors (2 x 100% capacity)

    - Rupture disc for condenser protection for full flow. - Expansion bellow with spool piece between turbine exhaust and condenser inlet - Condensate piping from hot well through CEPs & ejector condensers upto re-circulation

    valve with pipe supports, strainers, steam traps, drains, vents and isolation provisions. - Dry air/vapor line within specified battery limit. - GVC with complete piping for gland seal and leakage returns to GVC and GVC drains to

    nearest drain point along with required steam traps and valves etc.

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    Lubrication System

    Forced feed lubrication system, common for Turbine, Gearbox & Alternator comprising of:

    - Lube oil tank provided with cleaning doors and air breather - Main Oil Pump (MOP) driven by gearbox low speed shaft - A.C. Motor driven auxiliary oil pump (AOP) for flooding the bearings during start-up and

    wired through a pressure switch for automatic cut-in and cut-out in the event of main oil pump not supplying required quantity of oil.

    - A.C. Motor driven auxiliary Control oil pump (ACOP) (1 working + 1 standby) to supply oil to Control system.

    - D. C. Motor driven Emergency lube Oil Pump (EOP) with auto cut-in & cut-out facility - Suction strainers for MOP, AOP & EOP. - Pressure relief valves for discharge of MOP, AOP, and lube oil line

    - Oil coolers (1 working + 1 standby) with on-line changeover arrangement- Oil filters (1 working + 1 standby) with on-line change-over arrangement - AC motor driven oil mist separator mounted on oil tank - Pressure regulating valve to achieve desired lube oil pressure - Set of complete lube oil piping within the limits of the turbine base frame and sufficient to

    meet the requirement of the ordered equipment. (The MOC of lube oil pipe will be SS-304 ERW downstream the filter). Note: JOP is not required for this rating turbine and hence not considered.

    Accessories

    - Motorized barring gear arrangement.- Base plate for turbine and gearbox - Insulation for Turbine hot parts (lagging & cladding) - Set of foundation bolts - Set of commissioning spares - Set of special tools & tackles for maintenance - Vibration monitoring system for high speed train. - GVC with complete piping for gland seal and leakage returns to GVC and GVC drains to

    nearest drain point along with required steam traps and valves etc.

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    PS Pr Switch Auto start/stop of ACOP Control Oil skid 1

    PS Pr Switch AOP & ACOP motor interlock Lube Oil Skid 1

    PS Pr Switch LP Trip SV-203 Discharge pressure Switch

    Turbine control panel. 1

    PS Pr Switch Control Oil After LP Trip pressure Switch

    Field 1

    RTD Resistance temp detector.

    Exhaust hood temperature Element-1

    Field 1

    RTD Resistance temp detector.

    Exhaust hood temperature Element-2

    Field 1

    RTD Resistance temp

    detector.

    Exhaust hood temperature

    Element-3

    Field

    1 RTD Resistance temp

    detector. Exhaust hood temperature Element-4

    Field 1

    RTD Resistance temp detector.

    Turbine journal bearings, steam end.

    Turbine skid 1

    RTD Resistance temp detector.

    Turbine journal bearings, exhaust end.

    Turbine skid 1

    RTD Resistance temp detector.

    Control Oil Temperature Before NRV

    Turbine skid 1

    RTD Resistance temp detector.

    Turbine thrust bearing active top Turbine skid 1

    RTD Resistance temp detector.

    Turbine thrust bearing non-active top

    Turbine skid 1

    RTD Resistance temp detector.

    Gearbox bearings. Gearbox 6

    RTD Resistance temp detector.

    Alternator winding Alternator 4

    RTD Resistance temp detector.

    Alternator bearing Alternator 2

    RTD Resistance temp detector.

    Alternator air temp Alternator 4

    RTD Resistance temp detector.

    Lube oil temp before cooler Turbine skid 1

    RTD Resistance temp detector.

    Lube oil temp after cooler Turbine skid 1

    RTD Resistance temp detector.

    Oil Tank Temperature Oil tank 1

    SV Solenoid valve Turbine tripping Turbine skid 1

    SV Solenoid valve Turbine tripping Turbine skid 1

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    XI Radial Vib Indicator

    Turbine rotor fore bearing vibration, X-axis

    TCP 1

    XI Radial Vib

    Indicator

    Turbine rotor fore bearing

    vibration, Y-axis

    TCP 1

    XI Radial Vib Indicator Turbine rotor after bearing

    vibration, X-axis

    TCP 1

    XI Radial Vib Indicator Turbine rotor after bearing

    vibration, Y-axis

    TCP 1

    XI Radial Vib Indicator

    Turbine pinion fore bearing vibration, X-axis

    TCP 1

    XI Radial Vib Indicator

    Turbine pinion fore bearing vibration, Y-axis

    TCP 1

    XI Radial Vib Indicator

    Turbine pinion after bearing vibration, X-axis

    TCP 1

    XI Radial Vib Indicator

    Turbine pinion after bearing vibration, Y-axis

    TCP 1

    Condensate Instruments

    Tag No. Equipment Application Location Qty.

    I/P Current to Pres. converter Hotwell level control Field 1

    LCV Level control valve Hotwell re-circulation line Field 1

    LCV Level control valve Hotwell bypass line Field 1

    LG Level Gauge Hotwell level indication Field 1

    LSH Level switch Hotwell level high Field 1

    LSHH Level switch Hotwell level very high Field 1

    LSL Level switch Hotwell level low Field 1

    LSLL Level switch Hotwell level very low Field 1

    LT Level transmitter Hotwell Level Loose supply 1

    PG Pr Gauge Discharge of CEP-300 Field 1

    PG Pr Gauge Discharge of CEP-301 Field 1

    PG Pr Gauge Condensate pr after LCV-301 Field 1

    PG Pr Gauge Motive steam inlet header Ejector 1

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    PG Pr Gauge Motive steam inlet to hogger ejector, EJ-400

    Ejector 1

    PG Pr Gauge Hogger ejector pr Ejector 1

    PG Pr Gauge Motive steam inlet to Ejector, EJ-401, 403;

    Ejector 1

    PG Pr Gauge Motive steam inlet to EJ-402, 404.

    Ejector 1

    PG Pr Gauge Shell pr of ejector condensor, SSC-400

    Ejector 1

    PG Pr Gauge Ejector suction header Ejector 1

    PG Pr Gauge Condensate inlet to Ejector

    condenser, SSC-400

    Field

    1 PG Pr Gauge LCV line pr indicator Field

    1

    PS Pr Switch Condenser shell pressure high alarm

    Gauge panel 1

    PS Pr Switch Condenser shell pressure very high trip and alarm

    Gauge panel 1

    PS Pr Switch Auto start of standby CEP Loose supply 1

    PT Pr Transmitter Condenser Header pr indicator

    Field 1

    TG Temp Gauge H