长输管线阀门排污与放空的分析及研究

Study on Drain and Vent of Long-Distance Pipeline Valves

介绍了长输管线的排污与放空在管线工程中的作用和实际应用效果,分析了管线阀门排污与放空在实际工程中的必要性及排污与放空对活塞效应阀座的影响,提出了管线阀门活塞效应阀座的设计必须与排污、放空有效结合,管线阀门才能实现双截断与泄放的功能。

This paper introduces the necessity of drain and vent of the long distance pipeline and pipe-line valves from the pipeline engineering practice. The influence of drain and vent on the piston effectseat is analysed. The design of the pipeline valve seat piston effect must combine with the actual needsof drain and vent, truly embodying the DBB function of the pipeline valve.