密封容器混合气体充入方式的试验研究

以一密封容器为研究对象,采用氦检漏技术对3种不同充气方式进行试验研究,以确定气体混合均匀用时最短的充气方式,以期为该类实际工作提供指导.试验结果表明:采用3种充入方式,最终均可以实现整个空间内气体的混合均匀,但是所需时间不尽相同.当采用先充入N2、再充入He的方式时,静置2 h后,N2和He基本混合均匀;当采用先充入H...

Experimental Study of Method of Mixed Gas Filling in Sealed Container

Taking a sealed container as the research object,this paper adopted helium leakage detection method to conduct experimental research on 3 different charging modes,so as to determine the charging mode of the shortest time of uniform gas mixing.It provides guidance for this kind of practical work.Experimental results show that the 3 filling methods can achieve uniform gas mixing in the whole space,but the required time is different.When N2 is first filled and then He is filled,it is basically uniform after 2 h of standing.When filling with He first and then N2,after standing for 1.5 h,the He volume fraction inside is basically uniform.When mixed with a buffer container and then filled with the container,the He concentration inside reaches a uniform level within 30 minutes.