关于全启式安全阀定义的讨论  

Discussion on Definition of the Full-lift Safety Valve

作　　者：孙琦 谢青延 赵昆玉 

机构地区：[1]深圳市特种设备安全检验研究院,深圳518109

出　　处：《中国特种设备安全》2016年第9期7-11,共5页China Special Equipment Safety

摘　　要：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.

关 键 词：全启式 开启高度 流道直径 帘面积 排量 

分 类 号：X933.4[环境科学与工程—安全科学]