给水泵螺旋密封的结构改进  

Strudure Improvement of Spiral Seal using in Feend Water Pump

作　　者：孙卫平[1] 马新勇[1] 顾海飞[1] 李兵[1] 

机构地区：[1]上海船舶设备研究所,上海200031

出　　处：《流体机械》2014年第7期40-42,83,共4页Fluid Machinery

摘　　要：针对某型给水泵的螺旋密封失效问题,采取了组合式螺旋改进措施,较好地解决了问题,为克服"气吞"现象提供了典型案例。文中提出了雷诺数的计算公式,为螺旋密封理论计算提供了参考。For failure problems of spiral seal in a certain type of feed water pump ,an improvement measures of combined spiral seal was better used to solute exited problem ,which provided a typical case on overcoming the phenomenon of gas swallowing . such paper presents the calculated formula of Reynolds number ,also which provides a reference of theoretical calculations about spiral seal.

关 键 词：螺旋密封 失效 气吞 组合式螺旋密封 

分 类 号：TH136[机械工程—机械制造及自动化]