It is shown by analysis that the main reasons for the damage of dry gas sealing are the higher vibration of radial tile at both sides and higher temperature of thrust tile.

• 介绍二氧化碳压缩机高压缸的结构及运行中存在的问题,分析认为干气密封损坏主要原因是两侧径向瓦振值较高、止推瓦温度较高,提出改进措施。