The water supply of the cold water machine of the refrigerating plant mainly includes: the cooling water of the condenser, the cooling water of the cylinder of the refrigeration compressor and the cooling water of the crankcase and the water of the evaporator. Under the normal working conditions of the heat pump, the water is not polluted by excessive water only. Cooling water system should be designed in accordance with the refrigeration device of water quantity, water quality, water temperature and pressure requirements. After understanding the amount of water in the water, water temperature and cooling equipment form, environmental and meteorological conditions, the technical and economic comparison of.
There are three kinds of water supply system used in water supply system.
(1) one of the most simple water supply mode. With the pump into the refrigeration equipment by direct water extraction, after discharged into the sewer or a combination of comprehensive utilization of farmland irrigation and drainage system. For water, adequate water, the water temperature suitable area.
(2) method of circulating water supply system for sewage, into the cooling water of the refrigeration equipment after use, which will be part of the re introduction of mixed refrigeration equipment inlet and fresh drinking water machine water cooling structure after and into the refrigeration equipment.
(3) circulating water system, cooling water circulation, only a small amount of water. Due to water less water, the water temperature is high, the water supply equipment and method of complex system. Circulating water supply system in accordance with the circulating water enters the condenser, which can be divided into weak gravity pressure return two design schemes.
(4) back to the gravity water supply system, water supply system is the gravity hui. The installation position of the cooling tower above the condenser, pump hot water in the pool will give the cooling tower cooling, the cold water enters the vertical condenser by gravity, the system only needs a pool, a circulation pump.
(5) pressure recovery type water supply system, horizontal shell and tube condenser circulating water supply scheme, the cooling tower is arranged in the circulating water tank top, the circulating water tank in the storage to the cooling water, the pump will be the cold water pressure is sent directly to horizontal shell type water-cooled condenser York screw type refrigerating machine parameters, in the export of hot water into the cooling tower, this system in the circulating pipeline in pressure state.