微阻缓闭旋启式止回阀阀瓣的改造

Technical Improvement of the Flap in Damping and Swing Check Valve

首先介绍了微阻缓闭止回阀的结构及作用,进而对易损部件阀瓣密封面损坏问题进行了研究,提出了对易损件阀瓣修复改造方法。实践证明改造方案可行,经济效益明显。

The structure and functions of check valve are introduced firstly, further discusses the vulnerable part flap which might be damaged on the sealing surface and proposes repairing and improving plan, which has been proved to be reasonable and feasible and got obvious economic benefit.