摘要
当由于某种原因使输送液体管路中的调节阀迅速开闭 ,就可能引起水击 ,对设备和管道造成损坏。为此 ,设计一种阀门执行机构防水击装置。此装置在阀杆接近全关位置的 2 0 %行程内实行分级阻尼 ,减缓阀门开闭动作 。
The control valves in liquid pipelines shutting or opening fast due to some causes may result in pressure surge,which is dangerous to equipment and pipelines.To solve the problem a pressure surge proof device for the valve actuator is developed.The device provides damping action in two stages on the valve stem over the last 20% of the travel to the close position so that pressure surge from the valve is eliminated.
出处
《阀门》
北大核心
2000年第3期19-21,共3页
VALVE MAGAZINE
