电子膨胀阀失效分析和预防

Failure Analysis of Electronic Expansion and Its Valves Defect Prevention

阐述了多联机电子膨胀阀失效的常见方式。重点研究和探讨了杂质对电子膨胀阀侵蚀的作用机理和危害,并从杂质过滤和逻辑控制等方面讨论了设计预防措施。

The normal methods of electronic expansion valves failure in VRF were described in this paper. The impurity erosive mechanism to EXV and harm to air condition unit was studied systematically, and the defect prevention based on impurity filtration and control strategies were discussed.