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Schlee (China) Refrigerating Equipment Manufacturing Co.,Ltd

Add:Jupu Road, Pukou Development Zone, Nanjing City, Jiangsu Province, China

Contact us:Annie





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Water Cooled Screw Chiller Main Components
- Nov 02, 2017 -

Water-cooled screw chillers are also a chillers, because of its main components using a screw compressor, so the name can be called water-cooled screw chillers. It is widely used in the fields of plastic, electroplating, electronics, chemical, pharmaceutical, printing, food processing and other industrial refrigeration process to use chilled water, or large shopping malls, hotels, Factories, hospitals and other central air conditioning projects need to use chilled water concentrated cooling areas.

Water-cooled screw chillers are mainly composed of semi-enclosed screw compressors, shell and tube condensers, dry filters, thermal expansion valves, shell and tube evaporators, and electrical control parts.

working principle

Unit cooling, the compressor will evaporator low temperature and low pressure refrigerant into the cylinder, through the compressor work, refrigerant vapor is compressed into high temperature and high pressure gas,

Through the exhaust pipe into the condenser. High temperature and high pressure refrigerant gas in the condenser with the cooling water for heat exchange, the heat transfer to the cooling water away, while the refrigerant gas is condensed into high pressure liquid. The high pressure liquid from the condenser is throttled by the thermostatic expansion valve and enters the evaporator. In the evaporator, the low-pressure liquid refrigerant absorbs the heat of the chilled water and vaporizes the chilled water to cool down and becomes the desired low-temperature water. The vaporized refrigerant gas is re-sucked by the compressor and discharged into the condenser, so that it is circulated again and again, thereby cooling the chilled water.

From the unit out of chilled water, into the indoor fan coil, variable air volume air conditioner and other end devices in the indoor and convective air heat exchange, in the process, the water due to the absorption of indoor air heat (to the indoor air heat) And the temperature rises, and the indoor air through the indoor heat exchanger after the temperature drop, driven by the fan, into the room, thereby reducing the indoor air temperature, and the temperature rise after the chilled water in the pump under the re-enter the unit, so Cycle, so as to achieve the purpose of continuous cooling.


(1) unit compressor selection of semi-closed screw-type compressor and electronic control components, equipped with heat exchanger and efficient high-quality copper tube condenser and evaporator;

(2) equipped with various types of security devices, stable performance, low noise, long life, simple operation; use of liquid crystal display man-machine interface, simple and convenient operation, running at a glance;

(3) models have a single compressor or multi-compressor combination of refrigeration systems. Compressor can change according to the load, automatically turn the operation, balance the number of operating hours of the compressor, to save energy and extend the use of chillers the effect of the deadline. Easy to adjust energy, more energy in the part of the load;

(4) open structure, machine appearance is beautiful, simple structure, can check the operation of the unit at any time, easy installation and maintenance;