Bitzer Semi-Hermetic Screw Compressor with Condenser Unit

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.

lBasic configuration of low temperature and screw compressor parallel unit :

lframework

lCompressor(suction&discharge stop valve)

lOil system(include: oil heater,oil separator ,oil flow switch,oil system solenoid valve,oil filter,oil line sight glass,oil cooler)

lElectrical control system

lProtecting 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)

lHigh pressure gauge,low pressure gauge

lReceiver (with stop valve,liquid system filter,sight glass)

lSafety fittings(receiver safety valve,oil separator safety valve)

lLow pressure side pressure sensor

lSuction line accessories(suction filter,suction line insulation)

Option:

lLiquid level switch

lAccumulator

lDischarge line accessories(hot gas stop valve,pressure regulator valve)

lSuction line accessories(suction branch stop valve,suction main line stop valve)

lLiquid line accessories( liquid branch ball valve)

lOil pump system

lliquid injection control

loil pressure switch

ldischarge line accessories( oil separator outlet check&stop valve)

Optional Equipment

lAir cooled condenser or Water cooled condenser or Evaporate type condenser

Application of low temperature and screw compressor parallel unit:

lRefrigeration industry, cold-room project , low temperature shipping center,

lsuper-market cold-chain, chemical industry