本文是作者对熔融尿素泵扩能设计、研制全过程的总结。
In this paper, the whole process of the melting urea pump capacity-enlarging design and manufacture is summarized.
高压法三聚氰胺装置熔融尿素升压泵运行过程发生多起断轴事故，使装置多次出现非计划停工。
The packing axle seal of the melt urea pump leaked seriously, leading to many harmful effects, so we revamped the form of axle seal.
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