空调制冷剂运行原理
Air conditioning refrigerant operation principle
空调在作制冷运行时，低温低压的制冷剂气体被压缩机吸入后加压变成高温高压的制冷剂气体，高温高压的制冷剂气体经过冷凝器（一般空调是风冷，即室外机的散热铜管）在室外换热器中放热，变成中温高压的液体（热量通过室外循环空气带走），中温高压的液体再经过毛细管膨胀降压后变为低温低压的液体，低温低压的液体制冷剂经过蒸发器（室内机铜管）吸热蒸发后变为低温低压的气体（室内空气经过换热器表面被冷却降温，达到使室内温度下降的目的），低温低压的制冷剂气体再被压缩机吸入，如此循环。
When the air conditioner is in refrigeration operation, the refrigerant gas with low temperature and low pressure is sucked in by the compressor and pressurized into the refrigerant gas with high temperature and high pressure. The refrigerant gas with high temperature and high pressure is released in the outdoor heat exchanger through the condenser (generally, the air conditioner is air-cooled, that is, the cooling copper pipe of the outdoor unit), and becomes the liquid with medium temperature and high pressure (the heat is taken away by the outdoor circulating air), and the liquid with medium temperature and high pressure After the capillary expansion and pressure reduction, the body becomes a liquid with low temperature and pressure. After the liquid refrigerant with low temperature and pressure is absorbed by the evaporator (indoor copper tube), it becomes a gas with low temperature and pressure (the indoor air is cooled and cooled by the surface of the heat exchanger to reduce the indoor temperature). The refrigerant gas with low temperature and pressure is sucked in by the compressor, so it circulates.
总的来说，空调制冷剂在空调系统内就是一个压缩--冷凝--膨胀--蒸发的一个循环。
Generally speaking, air conditioning refrigerant is a cycle of compression condensation expansion evaporation in air conditioning system.