Aiming at the problem of high failure rate of vertical cryogenic pump laby-rinth seal of oxygen generation unit of the 40 000 m3/h deep-cooling internal compression process in an iron and steel plant,the factors affecting the stable operation of cryogenic pump labyrinth seal are analyzed from the aspects of equipment maintenance and operation.Through modeling,theoretical calculations,and simulation of the flow field,the overhaul cri-teria were quantified in detail,and the operating load control range was clarified,so as to extend the online service life of the labyrinth seal of the cryogenic pump and improving its operational stability.
关键词
立式低温泵/对中/压紧间隙/运行负荷控制标准
Key words
vertical cryogenic pump/alignment/compression clearance/operating load control criteria
维普
万方数据