离心泵的运行调节,过去常采用出口阀节流方式。这种方式简单易行,但浪费大,已逐步被其它运行方式所取代。在各泵站设备已经定型,又没有条件更换设备的时候,级差调节作为节约能源的第一步措施,是一种可取的运行方式。本文对东北管线级差调节运行的原理,试验运行情况及经济效果作一初步探讨。 Centrifugal pump operation regulation, the past often used to export valve throttling mode. This method is simple, but wasted, and has been gradually replaced by other modes of operation. In the pump station equipment has been finalized, and no time to replace the equipment, the level adjustment as the first step to save energy, is a desirable mode of operation. This paper makes a preliminary study on the principle, test operation and economic effect of the pipeline regulation adjustment in Northeast China.