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目前油田使用的离心式油水泵,尤其是匹配功率大的多级离心泵,运转周期和工作效率十分悬殊。如由800千瓦电动机驱动的6D100-150注水泵,运转周期长的可达8000小时左右,而运转周期短的却只有1000小时左右。泵的工作效率高低相差达20％。之所以有如此大的差别,离心泵平衡系统的使用及维修不当是主要原因之一。因此,确保平衡系统的良好工况和延
At present, centrifugal oil pumps used in oilfields, especially multi-stage centrifugal pumps with large power matching, have very poor operation periods and work efficiency. Such as by the 800-kilowatt motor-driven 6D100-150 water injection pump, long cycle time up to about 8000 hours, while the short run only about 1000 hours. The difference between the level of efficiency of the pump up to 20%. The reason why there is such a big difference, the use of centrifugal pump balancing system and improper maintenance is one of the main reasons. Therefore, to ensure that the balance of the system good conditions and delays