Industrial chiller and screw chiller refrigeration device for providing chilled water, can be tailor-made screw chiller according to the needs of users, screw chillers for refrigeration condition: frozen water temperature is 12 degrees Celsius, 7 degrees Celsius water, cooling water of 30 DEG C, cooling water of 35 DEG C; the scope of work unit frozen water temperature is 5-20 DEG C; using the programmable controller PLC control, touch screen, human machine interface operation, the screw chiller pressure is how to form?
Screw chiller water cooled and air-cooled two, the main difference between them is that condensation of refrigerant (i.e. cooling mode), exhaust pressure at the compressor (high) have a direct relationship with the heat, and the suction pressure (or pressure) is directly related to the temperature of the water is frozen with water the.
Screw chiller temperature at 32 DEG C and summer outdoor ventilated conditions, water cooled high pressure in the 14 ~ 18Kg/ 2 cm is the normal range, if the super 22Kg/ 2 cm, the unit will protect jump stop; air cooled high pressure in the 17 ~ 22Kg/ 2 cm is the normal range, if the super 28Kg/ cm 2 units protect jump stop. The temperature and flow rate of screw chiller compressor when working with low pressure of chilled water, the evaporator outlet generally is 7 degrees centigrade, low pressure 4Kg/ 2 cm, the water is 15 degrees centigrade, 4.8Kg/ low voltage of about 2 cm, the water is 20 degrees centigrade, 5.3Kg/ low voltage of about 2 cm. Screw chiller compressor stop pressure with temperature is proportional to the summer is generally 10 ~ 11Kg/ 2 cm, 2 cm in winter is 8 ~ 9Kg/.
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