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更新时间:2020-10-22 18:06:49

排气阀

排气阀】是茸阀流体上海阀门网旗下产品,,我们可为客户提供排气阀的作用,排气阀规格型号,排气阀尺寸结构图,标准,工作原理,排气阀安装说明书,欢迎来电咨询、采购。

  排气阀原理是当系统中有气体溢出时,气体会顺着管道向上爬,聚集在系统的高点,而排气阀一般都安装在系统高点,当气体进入排气阀阀腔聚集在排气阀的上部,随着阀内气体的增多,压力上升,当气体压力大于系统压力时,气体会使腔内水面下降,浮筒随水位一起下降,打开排气口;气体排尽后,水位上升,浮筒也随之上升,关闭排气口。同样的道理,当系统中产生负压,阀腔中水面下降,排气口打开,由于此时外界大气压力比系统压力大,所以大气会通过排气口进入系统,防止负压的危害。如拧紧排气阀阀体上的阀帽,排气阀停止排气,通常情况下,阀帽应该处于开启状态。排气阀也可以跟隔断阀配套使用,便于排气阀的检修。

  The Principle Of Exhaust Valve Is That When There Is Gas Overflow In The System, The Gas Will Climb Up Along The Pipeline And Gather At The High Point Of The System, And The Exhaust Valve Is Generally Installed At The High Point Of The System. When The Gas Enters The Exhaust Valve Chamber And Gathers At The Upper Part Of The Exhaust Valve, The Pressure Rises With The Increase Of The Gas In The Valve. When The Gas Pressure Is Greater Than The System Pressure, The Gas Will Make The Water Surface In The Cavity Drop, And The Buoy Will Follow The Water Level When The Gas Is Exhausted, The Water Level Rises, And The Buoy Also Rises, And The Exhaust Port Is Closed. In The Same Way, When A Negative Pressure Is Generated In The System, The Water Level In The Valve Chamber Drops And The Exhaust Port Opens. Because The External Atmospheric Pressure Is Greater Than The System Pressure, The Atmosphere Will Enter The System Through The Exhaust Port To Prevent The Harm Of Negative Pressure. If The Valve Cap On The Exhaust Valve Body Is Tightened, The Exhaust Valve Stops Exhausting. Normally, The Valve Cap Should Be In The Open State. The Exhaust Valve Can Also Be Used With The Block Valve To Facilitate The Maintenance Of The Exhaust Valve.

排气阀知识EXHAUST VALVE KNOWLEDGE