长距离密闭输油管道的水击数值模拟

在长距离密闭输油管道中间泵站断电停运的情况下,采用特征线法对全线压力变化情况进行了数值模拟。结果表明:越是靠近下游的泵站停运后,越能更快地形成越站输送,出现进站压力小于泵吸入压力的时间越晚,管道的最大压力越大,管道出现液柱分离的机会越小等。

Numerical Simulation of Water Hammer in Long and Enclosed Oil Pipelines

In the case when a relay pump station of long and enclosed oil pipelines has ceased to work due to power failure, used methods of characteristics to numerically simulate the transient pressure of the pipelines. The results indicate that the closer the location of the relay pump station which has ceased to operate is to the downstream, the faster the jump-over station transport will be achieved, the later the case that the pressure of gas entering the station is smaller than the sucking pressure of the pump will occur, the greater the maximum presure of the pipelines, and the fewer possibilities that the pipelines occurs liquid column separated, will be.