Air-cooled type cold water machine is mainly composed of a closed type scroll compressor, condenser, evaporator, fan, an expansion valve and an electric control system.

1: compressor, compressor is the core of the refrigeration system. The power of the water chiller, all by the compressor to provide, the compressor is equivalent to a real low potential move to high potential place, it is the purpose of the low temperature gas compressed into high temperature gas through the compressor, the gas in the heat exchanger and other medium heat exchanger. So that the compressor will directly affect the whole chiller effect. Air-cooled type cold water machine is generally used in the hermetic scroll compressor. Vortex compressor refrigerating capacity: 8 ~ 150KW, can be used for various air conditioning and refrigeration equipment. Hermetic scroll compressor, simple and compact structure, high performance, good sealing performance, low noise.

2, condenser: is the role of the high temperature and high pressure refrigerant compressor discharge of superheated steam cooling liquid or gas-liquid mixture. Refrigerant in condenser for the heat released by the cooling medium (water or air). Fin condenser manufacture independent design company with DYJ series air-cooled type cold water machine, simple structure, convenient repair, high in heat exchange performance.

3, evaporator: role is the use of cryogenic liquid refrigerant evaporates easily under low pressure, into vapor and absorption was cooling medium heat, to achieve the purpose of cooling. Evaporator DYJ series air-cooled type cold water machine can according to the customer request to choose water tank coil evaporator, shell and tube evaporator or plate type evaporator. Plate heat exchanger has high heat transfer efficiency, 3 times, generally for shell and tube type has the advantages of small volume, light weight, compact structure, easy to install..

4, fan: air-cooled type cold water machine generally adopts the axial flow fan. Axial flow fan, a motor drives the impeller in a cylindrical casing internal rotation, gas enters from the current collector, gain energy through the impeller, increasing the pressure and velocity, and then along the axial discharge, accelerate the circulation water cooler ambient air, so as to improve the heat dissipation rate..

5, the expansion valve throttling capillary: generally used for cold water machine with low power, high power point is the use of thermal expansion valve. Thermal expansion valve is exported through the feelings of the evaporator superheat of the refrigerant gas to control the evaporator the refrigerant flow. High-pressure liquid throttling the condenser, the liquid refrigerant in the low pressure (low temperature) under the heat of vaporization..

6, electrical control system: mainly use the company developed high intelligent PLC, PC computer control system, can be used for remote monitoring and control. Simple operation, the host with the power connection, low failure rate, high safety factor, system control can be adjusted in time, intuitive and reliable..