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胜利炼油厂催化烟机入口 Dg900大型高温闸阀前法兰泄漏,漏情发展迅速,尽管采用蒸汽掩护,泄漏出的烟气带有催化剂使法兰密封面及垫片泄漏口不断扩大,法兰螺栓(M48、Cr18Ni12Mo2Ti)冲刷磨损掉三分之一,平台上堆集200mm 厚的催化剂。在这种情况下决定采用带压堵漏。于1988年1月26日,经过三个多小时的带压堵漏操作,耗用堵漏剂六公斤多,终于完全止住了泄漏,使
Victory refinery entrance of catalytic cracking machine entrance Dg900 large high temperature valve flange leaks, the rapid development of leaks, despite the use of steam protection, leaked flue gas with a catalyst to make the flange sealing surface and gasket leaks continue to expand, flange bolts (M48, Cr18Ni12Mo2Ti) washed away by one-third of the wear and tear, platform stacking 200mm thick catalyst. In this case decided to use pressure seal. On January 26, 1988, after more than three hours of pressure sealing operation, consumption of more than six kilograms of sealing agent, and finally completely stopped the leak, so that