Indoor air heatexchanger is made up of preheat exchanger and secondaryheatexchanger, and removed wet compression for compressor.
制冷系统室内空气热交换器由预热交换器和二次热交换器组成，消除了压缩机可能存在的湿压缩。
2
A new type of plate heatexchanger using low-pressure secondary steam was introduced in this article.
介绍了一种能利用低压二次蒸汽的新型板式换热器在味精厂的应用。
3
Thermal Power Station is the second net heat source, the main energy-consuming device is a heatexchanger, circulating pump and fill the secondary network of pumps.