Low Temperature Chiller System for Vacuum Coating

2022/11/14 ClassificationNouvelles de l'industrie 296

Low Temperature Chiller System for Vacuum Coating

The vacuum coating low temperature chiller is used for rapid cooling of liquids, and the cooling temperature is -150℃~-5℃. It is widely used in petrochemical, medical, pharmaceutical, biochemical, freeze drying, biological and other industries. The operation of the vacuum coating low temperature chiller system is through Three interrelated systems: refrigerant circulation system, water circulation system, electrical automatic control system, then, how do these three systems affect each other?

1. Refrigerant circulation system: The liquid refrigerant in the evaporator absorbs the heat in the water and evaporates, forming a temperature difference between the refrigerant and the water, and the liquid refrigerant is also completely evaporated into a gaseous state, which is then sucked in and compressed by the compressor, and the gaseous refrigerant The heat is absorbed by the condenser and condensed into a liquid. After being throttled through the expansion valve, it becomes a low temperature and low pressure refrigerant and enters the evaporator to complete the refrigerant cycle process.

2. Water circulation system: The water pump is responsible for pumping water from the water tank to the equipment that the user needs to cool. The chilled water takes away the heat and the temperature rises, and then returns to the chilled water tank.

3. Electrical automatic control system: including power supply part and automatic control part. The power supply part supplies power to compressors, fans, water pumps, etc. through contactors. The automatic control part includes thermostat, pressure protection, delay device, relay, overload protection, etc., which can be combined with each other to achieve automatic start-stop, protection and other functions according to the water temperature.

The vacuum coating low temperature chiller adopts a single compressor, automatic cascade refrigeration, rapid cooling, simple equipment pipeline and low failure rate. It can be run on the road, and the operation is convenient and simple.

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