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首页> 外文会议>International conference on frontiers of manufacturing and design science >Theoretic Analysis of the Effect of Real Gas on the Performance of the T-groove and Radial Groove Dry Gas Seal
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Theoretic Analysis of the Effect of Real Gas on the Performance of the T-groove and Radial Groove Dry Gas Seal

机译：实际气体对T型槽和径向槽干气密封性能影响的理论分析

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摘要

Dry gas seal is a kind of non-contact seal in which gas dynamic and static pressure forming opening force,being with less gas leakage and longer using time.Generally speaking,the gas performance of the dry gas seal is regarded as an ideal gas when the dry gas seal is investigated,designed,and operated.However,some real gas performance may be quite different from the ideal gas when the gas pressure is high.Some gases,such as carbon dioxide,hydrogen and nitrogen,are considered,both the T-groove dry gas seal and the radial groove dry gas seal are analyzed.The virial equation of state is used to express real gas performance,and the effect of real gas on the performance of dry gas seal is analyzed.The results show the maximum relative of opening force error is-4.98％ and the maximum relative error of leakage is-20.11％ for carbon dioxide; the maximum relative error of opening force is-0.46％ and the maximum relative error of leakage is 2.47％ for hydrogen; the maximum relative error of opening force is-0.04％,and the maximum relative error of leakage is-0.16％ for nitrogen.So the effects of real gas of carbon dioxide and hydrogen have much influence on the performance of the dry seal; but the nitrogen has less influence on the performance of the dry seal.
机译：干气密封是一种非接触式密封，它的动，静压力形成打开力，漏气少，使用时间长。一般来说，干气密封的气体性能被认为是理想的气体。对干气密封进行了研究，设计和操作。但是，当气体压力较高时，某些实际气体性能可能与理想气体完全不同。考虑到了某些气体，例如二氧化碳，氢气和氮气分析了T型槽干气密封和径向槽干气密封。用状态状态方程表示真实气体性能，分析了真实气体对干气密封性能的影响，结果表明最大二氧化碳的打开力误差的相对值为-4.98％，最大泄漏相对误差为-20.11％。氢的最大打开相对误差为-0.46％，最大泄漏相对误差为2.47％。氮气的最大开启力相对误差为-0.04％，泄漏的最大相对误差为-0.16％。因此，二氧化碳和氢气等气体对干式密封性能的影响很大。但是氮气对干式密封的性能影响较小。

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