西大滩泵站管道破裂事故的处理

格拉成品油管道西大滩泵站１号主油泵，在输送７０号车用汽油过程中，泵吸入管道与闸阀法兰连接处的焊缝裂开了长８０ｍｍ的裂缝，喷油不止。造成裂缝的原因为泵出口压力大，泵震动较大，泵吸入管道刚度小，使原有焊缝缺陷扩大等。针对泵吸入管道和集油管垂直焊接成一体的实际情况，采用了停泵卸压的泵房内焊接的抢修方案，在抢修过程中，通过停泵停输、泵房内通风换气、塞堆黄油确保集油管中油气不冒出等措施，保证了安全。在抢修施

Actions against a Pipeline Rupture in Xidatan Pump Station

The pipe to No. 1 Main Pump of Xidatan Pump Station of Golmut-Lahsa Pipeline cracked to 80 mm long at its flanged connection to the pump suction when transporting 70# gasoline. The rupture results from high pump discharge pressure, strong pump vibration, and low pipe rigidity near pump suction. Considering that the pipeline is welded perpendicularly to the pump, an in-house rash repair is carried out, with welding made after pump shutdown, complete ventilation and blocking pipe end with grese to prevent gasoline from escaping. In addition, a big support is confirmed successfull, and normal operation is resumed and valuable experiences on rush repairing by welding in oil pump house are accumilated.