对安—延管道密闭输油后产生的水击问题进行了分析讨论,模拟计算了该管道四种瞬变过程的水击压力,并绘制了压力变化曲线图。通过对各工况的计算结果分析,指出安—延管道密闭输油,必须在沿河湾站设出站调节阀,进站设低压泄压和低压回流保护系统,杨山进站设泄压阀,各站设低压报警设备,通过就地控制和人为调节可以实现管道的安全运行。 The water hammer problem caused by the sealed oil pipeline of An-Yan pipeline was analyzed and discussed. The water hammer pressure of the four transients of the pipeline was simulated and the pressure change curve was drawn. Through the analysis of the calculation results of each working condition, it is pointed out that in the closed pipe transportation of An-Yan Pipeline, the outlet valve should be set up along Yanhewan Station, the low-pressure relief and low-pressure backflow protection system should be provided, The station set up low-voltage alarm equipment, through local control and man-made adjustments can achieve the safe operation of the pipeline.