离心注输泵是油田常用的注水输油设备;在油田开发中随着长期运转,泵效率逐渐降低,表现为流量减少,能耗增加、噪音加大、故障频发等现象。本文通过介绍油田离心注输泵的常见问题和维修方法,对其故障类型及其产生原因进行了研究,并给出注输泵的日常维护及保养规程,力争达到延长设备使用寿命,提高泵效率,减少维修费用,为现场维修工作提供借鉴的作用。 Centrifugal injection pump is commonly used in oilfield water injection equipment; in the oilfield development with long-term operation, pump efficiency gradually decreased, showing the flow reduction, increased energy consumption, increased noise, frequent failures and so on. This paper introduces the common problems and maintenance methods of centrifugal pump in oilfield, studies its fault type and its causes, and gives the routine maintenance and maintenance of injection pump, strives to prolong the service life of equipment and increase the pump efficiency , Reduce maintenance costs, provide reference for on-site maintenance work.