Screw Compressor Unit:
High-temperature Type: Evaporating temperature of 12.5°C~-10, and the nominal power of compressor motor is from 60HP to 600HP.
Intermediate-temperature Type: Evaporating temperature of -15°C~-30°C, and the nominal power of compressor motor is from 50HP to 540HP.
Low-temperature Type: Evaporating temperature of -35°C~-45°C, and the nominal power of compressor motor is from 50HP to 540HP.
Introduction of low temperature and screw compressor parallel unit:
1.Save investment,to reduce first-time equipment cost;
2.Save power,supply ref.capacity according to need,save 20% power compared to equipping condensing unit with single compressor;
3.Safe processing ,momently monitoring and controlling processing data,with damage warning function to insure processing security;
4.Compact structure,multi compressors concentrate installed,save space and construction period;
5.Full automation,equip with Italian Carel advanced controller for multi-compressor condensing unit;
6.Full protecting function,together with multi-time warning- to -lock function,function of showing failure code,to advanced reliability and maintainability;
7.Multi classes of power adjustment,can adjust power supply by change ref-loading,can efficiently save power cost.
8.Automatic processing balances,rapidly en-long the general service period of the whole unit;
9.Equipped with new type of screw compressor,high efficient,long service life,little noise and little shake.
l Basic configuration of low temperature and screw compressor parallel unit :
l Framework
l Compressor(suction&discharge stop valve)
l Oil system(include: oil heater,oil separator ,oil flow switch,oil system solenoid valve,oil filter,oil line sight glass,oil cooler)
l Electrical control system
l Protecting fittings (compressor high/low pressure controller, system high&low pressure controller, , overload, lack-phase, anti-phase, oil temperature, inside-overheat, high pressure side pressure sensor, oil temperature control)
l High pressure gauge,low pressure gauge
l Receiver (with stop valve,liquid system filter,sight glass)
l Safety fittings(receiver safety valve,oil separator safety valve)
l Low pressure side pressure sensor
l Suction line accessories(suction filter,suction line insulation)
Option:
l Liquid level switch
l Accumulator
l Discharge line accessories(hot gas stop valve,pressure regulator valve)
l Suction line accessories(suction branch stop valve,suction main line stop valve)
l Liquid line accessories( liquid branch ball valve)
l Oil pump system
l liquid injection control
l oil pressure switch
l discharge line accessories( oil separator outlet check&stop valve)
Optional Equipment
l Air cooled condenser or Water cooled condenser or Evaporate type condenser
Application of low temperature and screw compressor parallel unit:
l Refrigeration industry, cold-room project , low temperature shipping center,
l super-market cold-chain, chemical industry
