本文以渗氢池的密封为例，较详细地介绍了空心金属密封圈对高低温气体、液体、燃气等介质（或介质具有放射性等要求严格的静密封）的优良密封性能，并对其密封结构、原理、注意事项、设计计算及其制作给予了介绍，因而对从事密封应用的同行具有实际意义。 In this paper, the sealing of the hydrogen pool is taken as an example to describe in detail the excellent sealing performance of the hollow metal sealing ring on the high and low temperature gases, liquids, gas and other media (or the media with the static requirements such as radioactive sealing), and its sealing Structure, principles, precautions, design calculations and their production were introduced, and thus engaged in the application of the seal of practical significance.