Company founded 1975 US-based machinery business experienced in worldwide sales.

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Coal Power Plant, 20 MW, 50Hz, 2012, 90 TPH Boiler

Coal Power Plant, 20 MW, 50Hz, 2012, 90 TPH Boiler

Description

  1. Overview
    1. Ro plant
    2. Sources of water: borewell water
    3. Amount of water from bore well: 1800 mm per day
    4. Ro-dm plant design capacity, output: two systems are available - 52 & 34 mm / hr
    5. Raw water and dm water storage capacity: raw water storage tank - 4000 mm, dm water storage tank - 1550 mm
    6. Details of waste water disposal arrangement - amount of discharge, evaporation pit: waste water discharged thro' water line to gardening - green cultivation and maintaining zero discharge outside the premises
    7. Details original design of systems & equipment: m/s doshion volia water solution ltd., ahmedabad
    8. Waste water analysis: ph 8.14, ec - 2650, th - 360, sio2 - 345
    9. Feed water analysis: ph - 8.65, ec 8.0, th - nil, sio2 - 0.022
    10. Auxiliary cooling tower design data including details of motor: two tanks, each 400 mm, two pumps and motors
  2. Boiler Details
    1. Boiler feed pump data: design flow, pressure, efficiency guaranteed, motor specifications, pump specifications: 55 tph, 1200 mtrs head, 2900 rpm, 237 kw motor
    2. Id fan design data, pressure, flow, make: 460 mm / sec, 290 mm wc
    3. Id fan motor data make, kw: 110 kw motor
    4. Id fan starter details: variable frequency drive
    5. Details same as for id fan for fd and sa fans: fd fan & s a fan - 55 kw, 1440 rpm, 250 & 120 mm/sec, 240 & 550 mmwc
    6. Performance particulars for full day pressure, temperature, flow, during full load or at max load with d: 87 ata, 520 deg.c, 84 tph
    7. Hp dosing pump design data-type, capacity, make, head, drive: model: pl3530 reciprocating simplex plunger type, cap-0-15lph pressure-120 kg/cm2, 1.5 hp, 3 phase 415v, 1440 rpm
    8. Deaerator capacity, temperature: 108 m3, 150 deg.c
    9. Primary and secondary air flow measurements: flow measuring instruments are available
    10. Dcs output for full or max load: max 1 kw
    11. Chimney height: 80 mtrs
    12. Spm, sox, nox, co2, co measurements availability and measurements: all measuring instruments are available and they are to be installed, make - forbes marshall
    13. Spares availability at the plant: see the attachment in the name of boiler spares sheet
  3. Fuel Handling System
    1. Belt conveyor details including width, electricals-technical data sheet: bc 1 to 1000 mm belt width, 61 m length, 9.3 kw motor, 1440 rpm; bc 2 - 1000 mm belt width, 85.6 m length, 11.19 kw motor, 1440 rpm
    2. Slot chain conveyors details-technical data sheet: double strand pipe & fork slat type, 40 tph, 3.7 kw, chain - type / pitch - roller chain / 152.4 mm
    3. Available fuel feeding systems into the boiler and their specifications: there are 4 nos. of screw feeders and two nos. of drag chain feeders are available
    4. Ash removal systems details: 8 nos. of screw feeders, one no. bucket elevator & sub-mergible ash conveyors are available
    5. Fuel shed size and construction: size of the shed - 73 x 46 x 7 mtrs; tin perforated sheets were provided in the top
    6. Fly ash storage methods and volume: concrete fly ash silo is available and the capacity is 150 m3
    7. Fly ash removal area available for land fill if any: already filling under progress inside the premises and some quantity sending outside for sales
  4. Turbo Generator
    1. Design: 20 mw, 86 ata, 515 deg.c, 4.2 kg of steam per kwh, fully condensing turbine and three bleed steam for lp heater, dea, hp heater
    2. Avr details like auto, two channels, make etc: make- abb, two auto and one manual
    3. 110 v battery sizing: make-exide, power safe, 400 ah, 55 nos, 2v
    4. Details of 110 v battery sizing: 400 ah, 110v
    5. Details of metering, synchronisation and protection panels: panel type-simplex type 11kv, 20mw stg mcsp and relay panel
  5. Acc Fans
    1. Technical data sheet supplied by vendor: attached in acc tech. work sheet
    2. Design temperatures: 42 deg.c
    3. Maximum temperatures observed in the area: 45 deg.c
    4. Max and min vacuum levels: -0.68 to -0.89
    5. Power absorbed details: 133 kw
    6. Ejection steam circuit details including flow, pressure and performance parameters: 11 ksc, 350 deg.c, 0.2 tph, mazda make
  6. Esp Details
    1. Design data like gas volume, no of fields, spm etc: 550 mm / sec, 3 fields, inlet dust conc. 5.5 gm/nm3, out let dust emission - 150 mg / m3
  7. Electricals
    1. Power transformer design data: make- bbl, 25000 kva, hv-132kv, lv-11000, 50hz, type of cooling-onan, phase-3 phase
    2. Power transformer shop inspection report as well as site inspection report not available
    3. Aux transformer design data: make-voltamp, 2000 kva, hv-11000, lv-433, 50hz, cooling-onan
    4. Vfd details if any: make-siemens, type-micro master 430, micro master 440
  8. Available Boiler Spares
    1. Walchand nagar ind. ltd
    2. Super heater coils: 4
    3. Straight s h tubs: 2
    4. Straight furnace tubs: 3
    5. Blow down valve: 2
    6. C b d valve: 1
    7. Carbon steel erw air heater tubes: 15
    8. Economiser coils: 2
    9. Special refractory: 0.1
    10. Complete gauge glass: 9 gauge glass - glasses
    11. Drum manhole joints: 12
    12. Spring for all safety valves: 4
    13. I d, fd & sa fan bearing s: one set
    14. Soot blowing tubes - for each blower: one set
    15. Feed pump spares - protection sleeve, set of bearing, gland packing, set of 'o' ring & gasket, balancing & counter, balancing disc, wearing ring, returning ring: one set
  9. Spares For Esp
    1. Emitting electrodes: 2
    2. Shaft insulator
    3. Support insulator: broken
    4. Bushing insulator: 1
    5. Heaters
    6. Thermostat
    7. Geared motor rapping: 1
    8. Hammer assembly: 3
  10. Travelling Grate Spares
    1. Grate clips 1": 10
    2. Grate clips 2": 75
    3. Tee bar: 5
    4. Outer skid shoe - rh: 4
    5. Outer skid shoe - lh: 4
    6. Inner skid shoe - rh: 4
    7. Inner skid shoe - lh: 5
    8. Grate sealing clip - rh: 5
    9. Grate sealing clip - lh: 10
  11. Instrument Spares
    1. Dp transmitter: 2
    2. I / p convertor: 1
    3. Air filter regulator: 0
    4. Valve diaphragm: one set
    5. Seats for critical valves: 7 nos.
    6. Bearing for screw feeder: 0
  12. Electricals Spares
    1. Indication lamp: 0
    2. Control fuses: 0
    3. Contactor moving + fixed contact: 0
    4. Sfu: 0
    5. Acb moving + fixed contact: 0
    6. Bimetal relay: 0
    7. Push button: 0
    8. Ammeters: 0
    9. Hrc fuses: 0
    10. Semi conductor fuses: 0
    11. Tube expanders: one set
    12. Safety valve locking seats for boiler hydro test: 3
    13. Safety valve gaging arrangement: 3
  13. Acc Tech. Datas
    1. Design data
    2. Turbine exhaust steam flow rate: 71 tph
    3. Guaranteed back pressure: 0.18 ata
    4. Steam enthalpy / dryness fraction: 580 / 0.93 k cal / kg
    5. Temp. at tg exhaust: 57.4 deg. c
    6. Cond. temp.: 56.25 deg. c
    7. Heat rejected: 37304000 k cal / kg
    8. Overall heat transfer coeff [bare / fin]: 678.15 / 30.44 k cal / hr. m2 deg. c
    9. Mtd: 7.9 deg. c
    10. Design ambient temp.: 42 deg. c
    11. Outlet temp. of air: 52.5 deg. c
    12. Altitude: msl m
    13. Initial temp. difference - itd: 15.4 deg. c
    14. Sound pr. level at 1 m: < 85 dba db - a
    15. Fouling factor [tube / air side]: 0.000 / 0.0002 hr m2 eg.c/k cal
  14. Performance Guarantee
    1. Tg exhaust back pr. @ design point: 0.18 ata
    2. Total power consumption for fans @ motor shaft: 89.6 x 6 bkw
    3. Sound pre. level at 1 m below fan: < 85 db - a
  15. Condenser Data
    1. Modules size - [l x w]: 10.938 x 10.8 m x m
    2. No. of modules: 6 nos