小型风冷热泵节流装置改造的节能研究

Modification of small-sized air-cooled heat pump's orificeset and researing of energy-saving

对风冷热泵冷热水机组节流装置(热力膨胀阀)进行改进,通过不同试验工况条件下的性能及其各种相关状态参数的测试,比较了系统改进前后的制冷量、能效比和响应时间,验证了使用电子膨胀阀机组能够达到节能的效果,并且提出了改进系统的进一步措施。

Modified the small-sized air-cooled heat pump's orifice set,got the system state parameter at different workcondition by experimental test,compared refrigerating output,COP and responde time of the system with electronic expanding valve and thermalexpanding valve,proofed that the system can save energy using electronic expanding valve than thermal expanding valve,and gived the method to improving the system's performance.