梭式止回阀与旋启式止回阀流动特性的数值模拟比较分析  

Comparative Analysis of Flowing Property for Shuttle Check Valve and Swing Check Valve with Numerical Simulation

作　　者：张健平[1] 曾祥炜[1] 陈刚[1] 

机构地区：[1]西南科技大学制造科学与工程学院,四川绵阳621010

出　　处：《化工设备与管道》2014年第1期79-82,共4页Process Equipment & Piping

基　　金：四川省科技厅资助项目(2012JY0050)

摘　　要：利用FLUENT软件,通过与旋启式止回阀比较,分析了梭式止回阀的流动特性。结果表明:梭式止回阀阀腔内压力均匀分布在阀瓣四周,阀瓣受力是轴对称的,没有产生漩涡,以及压力的波动也很少;且梭式止回阀在开度小于15%,流阻小,流动特性好,在即将关闭时,旋启式止回阀压力变化最大点的压力差不多是梭式止回阀的4倍;在开启瞬间,是梭式止回阀的2倍多,为此梭式止回阀不会产生很大的冲击,具有良好的防水锤特性。By using software FLUENT and compared with swing check valve,the flowing characteristics of shuttle check valve were analyzed.It was shown that around clove of shuttle check valve,the pressure is well-distributed,thus the clove is axially forced,and there is no eddy and pressure fluctuation is small.When shuttle check valve has 15% opening,it has good flowing characteristics and with small resistance.When on closing,the pressure at the point with maximum pressure change in swing check valve is around 4 times of that in shuttle check valve;when on opening,the pressure is more than 2 times of that in shuttle valve.Therefore,there is no large pressure impulse in shuttle check valve,and it has good feature in anti- water-hammer.

关 键 词：梭式止回阀 流动特性 启闭过程 防水锤 

分 类 号：TQ055[化学工程] TH134[机械工程—机械制造及自动化]