Main reason for frequent failure on mechanical seal of low boiling column bottoms in the production of methane chloride is due to impurity entry and airproof structure, unreasonable material.
对甲烷氯化物低沸塔底料泵机械密封频繁失效进行了分析，主要原因是物料中杂质进入和密封结构、材料不合理等。
This paper describes and analyses the reasons of the failure of dual-encl-face mechanical seal for hydrocarbon pump and proposes a reformation and design method.
本文阐述并分析了轻烃泵用双端面机械密封的特点，提出了改进方法和设计依据。
The reason of the seal's failure was analyzed. A new mechanical seal was developed which has an edge-seal end face, and the rubber lip seal was replaced by the mechanical seal.
设计一种刃口型密封端面的机械密封，代替原泵轴封采用的橡胶油封。
The reason of the seal's failure was analyzed. A new mechanical seal was developed which has an edge-seal end face, and the rubber lip seal was replaced by the mechanical seal.
设计一种刃口型密封端面的机械密封，代替原泵轴封采用的橡胶油封。
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