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Water Cooled Screw Chiller PDF

Water Cooled Screw Chiller

Water Cooled Screw Chiller
Water Cooled Screw Chiller
Screw Water Chiller

The water-cooled screw refrigeration unit adopts a shell and tube condenser, which has fast heat conduction and good heat dissipation effect. It can provide ice water at 5~35℃, and the low temperature type can be as low as 3℃ (the temperature difference does not exceed ±1℃), the compressor power is from 40HP to 560HP, and the cooling capacity can reach 100362~1520480Kcal/hr.

Specifications Of Water Cooled Screw Chiller

Standard specificationsSCC-40WSSCC-50WSSCC-60WSSCC-70WSSCC-80WSSCC-100WSSCC-120WS
Total powerKW30.937.945.857.265.974.890.9
Maximum operating currentA6991121128171203241
Cooling capacityKcal/h100362125904146716211560240800275200340560
Way to controlExternally balanced thermal expansion valve
CompressorTypeSemi-closed screw type
Start methodY-Δ
Energy adjustment range%0-33%-66%-100% / 0-25%-50%-75%-100%
EvaporatorTypesDry shell and tube type (plate exchange type)
Chilled waterM3/h21263043485568
Inlet and outlet pipe diameterInch3”3”3”4”4”4”5”
CondenserTypesShell and tube
Chilled waterM3/h26334054616985
Inlet and outlet pipe diameterInch3”3”3”4”4”4”5”
Electric power source Specification3P 380V 50HZ
Dimensions Longmm1960213024502750310035003750
Unit weightKG82095011201300156017202030
Running weightKG970106012701480178019602250

Features Of Water Cooled Screw Chiller

  • Industrial chiller factory adopt imported compressor

  • The copper tube is welded without oxygen

  • Efficient evaporator and condenser , energy savin

  • The high-power equipment adopts multi-group compressor, 

    Automatically adjust start and stop as needed 

  • Equipped with communication interface, can undertake future industry 4.0

What Matters Should You Pay Attention To When Choosing Screw Water Chillers?

A screw water chiller is a type of industrial chilling equipment with a large cooling capacity, it is widely used in central air-conditioning and the large Refrigeration Industry for refrigerating and cooling purposes. it adopts a water circulation working principle that saves water. It generates chilled water as direct media for cooling industrial equipment and keeps its temperature at a low-temp state.

1. For chilling systems that have long hours of underloading operating conditions, it is suitable to choose a multi-head piston compressor or screw compressor unit, for easy adjustment and energy saving. That is a double-head screw water chiller, the chiller automatically determines numbers of head to power-on according to load changes. This enables the compressor to work under the optimum working condition, thus effectively saving electricity.

2. Give priority to units with a higher performance coefficient when choosing a screw water chiller. According to previous industry statistics, during one year,  full-load operation time is less than 25%.  The corresponding operation time to 100% ,75%,50%,25% load are 2.3%,41.5%,46.1%,10.1% respectively. So we need to choose screw chillers with a flat efficiency curve. In the meantime, we need to check the adjustable range.

3. We need to pay attention to working conditions when choosing screw chillers. The actual cooling capacity of the water chiller is related to a chilled water outlet temperature and flow rate, inlet temp. of cooling water, flow rate, and scaling factor.

4. We need also to pay attention to the normal work scope of the screw water chiller, the motor electrical current limit value is the shaft power current under nominal conditions.

5. Under nominal working conditions screw industrial chiller outlet temperature should be below 15℃,  air-cooled screw chiller outdoor dry-bulb temperature should be below 43℃. When it exceeds the before mentioned range, we should check if it is allowed by compressor application fields and if the motor power is enough.

Water Cooled Screw Chiller Working Principle

Water Cooled Screw Chiller Working Principle

Water Cooled Screw Chiller Gallery

Screw Water Chiller
Water Cooled Screw Chiller Gallery
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