介绍了径向双端面机械密封在反应釜应用中存在的问题及改进，延长了使用寿命，降低了检修费用。
Existing problems of radial double ended mechanical seal used in reactors and their improvement are introduced, thus lengthening lifespan and reducing the cost of overhaul.
指出，制定旧油管检修标准，是提高检修质量，延长作业周期，降低作业费用，确保油田生产的根本途径。
So, formulating standards for repairing used oil tubes is the fundamental approach to improving repair quality to extend the service life of tubes and reduce the cost of oilfield production.
这种结构可以减少因沉积而造成的堵塞，方便操作检修，同时也降低土建费用。
The structure can reduce the blockade caused by deposit, thereby making the operation and maintenance convenient and reducing the cost of civil engineering as well.
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