关于全启式安全阀定义的讨论

Discussion on Definition of the Full-lift Safety Valve

安全阀根据其阀杆的开启高度分为全启式和微启式安全阀。全启式安全阀因其排量大,广泛应用于承压类特种设备中。在日常的检验工作中发现,现有技术标准有关全启式安全阀的定义其合理性值得商榷。本文就全启式安全阀定义的合理性及可能存在的问题加以讨论,提出按实际排量系数来定义全启式安全阀。

Safety valve is classified as full-lift and micro-lift safety valve according to the lift of the valve.Full-lift safety valve is widely used in special pressure equipment because of the high discharge capacity.It was found in daily inspection that the definition of full-lift safety valve in technique criterion is questionable.This paper is going to analyze rationality and potential problems of the definition,propose the new definition of full-lift safety valve according to the discharge coefficient.