Main elements of refrigeration system
Main elements of refrigeration system
According to the type of condensation, air conditioners can be divided into two types: water-cooled and air-cooled. According to the purpose of use, they can be divided into two types: single-cooling and cooling and heating. No matter which type of configuration, they are composed of the following main components Combination.
A) Main components of refrigeration system：Compressor, condenser, evaporator, expansion valve (or capillary tube, subcooling control valve), four-way valve, double valve, one-way valve, solenoid valve, pressure switch, fuse plug, output pressure regulating valve, pressure controller, It is composed of liquid storage tank, heat exchanger, heat collector, filter, dryer, automatic switch, shut-off valve, liquid injection plug and other parts.
B) Main components of electrical system：Motor (for compressors, fans, etc.), operation switches, electromagnetic contactors, interlock relays, overcurrent relays, thermal overcurrent relays, temperature regulators, humidity regulators, temperature switches (for defrosting, preventing freezing, etc.) . Compressor crankcase heater, water cut-off relay, computer board and other components.
C) The control system consists of multiple control devices
1)：Refrigerant controller: expansion valve, capillary tube, etc.
2)：Refrigerant circuit controller: four-way valve, one-way valve, double valve, solenoid valve.
3)：Refrigerant pressure controller: pressure switch, output pressure regulating valve, pressure controller.
4)：Motor protector: overcurrent relay, thermal overcurrent relay, temperature relay.
5)：Temperature regulator: temperature position regulator, temperature proportional regulator.
6)：Humidity regulator: Humidity level regulator.
7)：Defrost controller: defrost temperature switch, defrost time relay, various temperature switches.
8)：Cooling water control: water cut-off relay, water volume regulating valve, water pump, etc.
9)：Alarm control: over-temperature alarm, over-humidity alarm, under-voltage alarm, fire alarm, smoke alarm, etc.
10)：Other controls: indoor fan speed controller, outdoor fan speed controller, etc.
