微阻低压差旋启式止回阀的设计及应用  

Design and Application of Swing Check Valve with Micro-resistance and Low Differential Pressure

作　　者：肖斌 孟姝姮 XIAO Bin;Meng Shu-heng(Shenyang Valve Research Institute,Shenyang 110142,Liaoning,China;Shenyang EMU Depot,China Railway Shenyang Group Co.,Ltd.,Shenyang 110179,Liaoning,China)

机构地区：[1]沈阳阀门研究所,辽宁沈阳110142 [2]中国铁路沈阳局集团有限公司沈阳动车段,辽宁沈阳110179

出　　处：《阀门》2019年第5期8-10,共3页VALVE MAGAZINE

摘　　要：微阻旋启式止回阀是针对现有技术存在的缺点,开发一种开启压差低,低压差开启可靠、开启压力损失小等特点的低压差止回阀。微阻旋启式止回阀在阀瓣密封面内侧设有由小阀瓣与小阀座相互配合组成的小压差止回阀,小阀座安装在阀瓣平面内的通孔出口端,适用于燃气管道控制接通和截断管路介质的启闭装置,阻止介质逆流。For the shortcomings of existing technology,micro-resistance swing check valve is designed to develop a low-pressure differential check valve with the characteristics of low opening differential pressure reliable low pressure differential opening,low pressure loss and etc.The micro-resistance swing check valve is provided with a small differential pressure check valve which is composed of a small disc and a small seat interaction in the inner side of the sealing surface of the disc.The small seat is installed in the through-hole outlet end of the disc plane.It is suitable for the gas pipeline control switch and as on-off device for cut-off pipeline medium preventing the medium returning.

关 键 词：微阻低压差止回阀 小压差止回阀 低压差 开启压力 节能 

分 类 号：TH134[机械工程—机械制造及自动化]