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全焊接阀体管线球阀焊接接头安全评估措施   发布时间:18-07-30



YI,DAOYAN


石油和天然气输送管道是能源供应线。生产线上的紧急切断阀是一个全焊接的阀体管道球阀,其免维护使用寿命超过30年。但服务条件非常糟糕:从北极圈到赤道,从高原到海底,从沙漠到荒地;通过地震带,沼泽,冻土,河流,湖泊和斜坡;有竖立,直接埋在地下在野外,没有人在操作,维护很困难。它不仅能承受管道的内部压力,还能承受地基沉降,泥石流和地震等外部载荷,管道温度应力以及地下水的潜在腐蚀和应力腐蚀。


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