冷压机，有叫做冷干机压缩机，压缩空气中蒸气的含量由气温决定，保持压缩空气的压力不变，降低压缩空气的温度可以降低水蒸气含量，多余的水蒸气可以迅速凝结成液体。冷干机就是利用这个原理干燥压缩空气的制冷技术。

The cold press has a compressor called cold drying machine. The content of steam in compressed air is determined by temperature. Keeping the pressure of compressed air unchanged, reducing the temperature of compressed air can reduce the content of water vapor, and the excess steam can be quickly condensed into liquid. A cold drying machine is a refrigeration technology that uses this principle to dry the compressed air.

制冷机具有制冷系统，在制冷系统中，冷压机中的蒸发器是输送冷量的设备，制冷剂吸收压缩空气中的热量，可以达到脱水的目的。冷凝器属于放出热量的设备，首先将蒸发器中吸收的所有热量与压缩机转换热量传递给冷却介质中，最后制冷机和膨胀阀节流阀节流压力的数量，同时控制和调节液体制冷剂进入蒸发器，并将系统分为两部分的高、低压侧。

The refrigeration system has refrigeration system. In the refrigeration system, the evaporator in the cold press is the equipment to transmit the cooling capacity. The refrigerant absorbs the heat in the compressed air, and it can achieve the purpose of dehydration. The condenser is a heat equipment, will first of all heat and heat transfer compressor evaporator absorbs the transfer of the cooling medium, the refrigerator and the number of expansion valve throttle valve throttle pressure at the same time, the control and regulation of the liquid refrigerant into the evaporator, and the system is divided into two parts of the high and low voltage side.