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本文根据压缩蒸馏海水淡化装置使用的蒸汽离心压缩机中滑油室与蒸汽道间的密封设计要求，选用了航空机械中使用的金属涨圈接触或密封，并对之使用要求、密封原理、设计特点、性能评价、材料选择和技术要求作了讨论①。
In this paper, according to the requirements of the seal design between the oil chamber and the steam passage in the steam centrifugal compressor used in the compression distillation seawater desalination unit, the metal ring contact or seal used in the aviation machinery is selected, and the requirements, sealing principle, design Characteristics, performance evaluation, material selection and technical requirements were discussed ①.