作　　者： ; ; (张乐平）; (孙山林）; (白俊文）;

机构地区： 清华同方人工环境有限公司北京100083

出　　处： 《流体机械》 2007年第7期52-56,共5页

摘　　要： 为解决传统空气源热泵机组在低温高湿地区制热量低、制热能效比低下及不能正常可靠工作的问题,介绍了一种采用了具有辅助进气口的涡旋压缩机的制冷系统。按照GB/T10870《容积式和离心式冷水(热泵)机组性能试验方法》对原型机进行了不同工况的测试。测试数据表明,这种新型空气源热泵不仅可以降低压缩机在高温工况和低温工况下的排气温度,进而保证机组长期、可靠地工作;还可以提高低温工况的制热量和制热能效比,但这种趋势随环境温度的上升而下降。通过这种方式,可以使空气源热泵的应用范围得到很大扩展。 The conventional air source heat pumps cannot work reliably for a long time under atrocious weather conditions because the coefficient of performance of the ASHP becomes so small that it is pointless to keep the unit running. A new subcooling system employing a scroll compressor with supplementary injections was proposed that can effectively solve the above problems. The prototype ASHP has been test according to the GB/T 10870 and the test outcomes of the prototype ASHP show that this new kind of ASHP can work very well either when the ambient temperature is very high or very cold in the winter. In this way, the ap- plications of ASHPs were greatly enlarged.

关 键 词： 热泵 涡旋压缩机 恶劣工况

领　　域： [化学工程]