The operation of the industrial chiller system is through three interconnected systems: refrigerant circulation system, water circulation system, and electrical automatic control system.
The refrigerant cycle system of an industrial chiller is that the liquid refrigerant in the evaporator absorbs heat from the water and starts to evaporate. Eventually, a certain temperature difference is formed between the refrigerant and the water, and the liquid refrigerant is completely evaporated into a gaseous state, and then compressed The machine sucks and compresses (pressure and temperature increase), and the gaseous refrigerant absorbs heat through the condenser (air-cooled/water-cooled) and condenses into liquid. After throttling through an expansion valve (or capillary tube), it becomes a low temperature and low pressure refrigerant and enters the evaporator to complete the refrigerant cycle process.
The water circulation system is the water pump responsible for pumping water out of the water tank to the user's equipment to be cooled. The chilled water takes away the heat and increases in temperature before returning to the chilled water tank.
The electrical automatic control system includes the power supply part and the automatic control part.
The power supply partly supplies power to compressors, fans, and water pumps through contactors. The automatic control part includes thermostat, pressure maintenance, delayer, relay, overload protection, etc. to achieve the functions of automatic start and stop based on water temperature, maintenance and other functions.