摘要
为了研究电子膨胀阀在低温条件下的应用特性,研制了低温试验台,并在试验台上并联安装了电子膨胀阀和热力膨胀阀,对两种膨胀阀在相近工况下进行降温特性的对比性试验。根据实验结果进行分析研究,可以看出电子膨胀阀在低温条件下的控温曲线是非常平稳的,并可调节电子膨胀阀的不同开度,达到不同的降温速率及终温。另外通过改变电子膨胀阀开度,研究了在变开度情况下,对制冷系统循环参数的影响。
A low - temperature test system was set up to investigate temperature characteristic of electronic expansion valves on low - temperature devices. In the system, a thermostatic expansion valve and an electronic expansion valve were installed in parallel. The experimental results show that the temperature control curves are smooth and steady with the electronic expansion valve at the low - temperature conditions. In addition, different temperature drop rates and final balanced temperatures can be achieved by changing the open degree of the electronic expansion valve.
出处
《制冷学报》
CAS
CSCD
北大核心
2007年第2期32-35,共4页
Journal of Refrigeration
关键词
热工学
电子膨胀阀
节流元件
降温特性
低温装置
Pyrology
Electronic expansion valve
Throttling device
Temperature characteristic
Low- temperature device
