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在锅炉压力容器的使用过程中,由于对运行维修中某些操作和维护保养的细小环节重视不够,结果加剧了锅炉压力容器的腐蚀,造成检修级别升级,给国家财产带来损失。这种情况不乏其例,应引起我们足够重视。例如某单位一台4t快装链条燃煤锅炉,1991年曾因3根水冷壁管漏水而停炉,当时未作任何处理,一直搁置了4个多月。后来检查发现;烟管内有烟灰、烟垢;炉膛有湿灰;炉墙保温砖潮湿;锅筒及联箱内有水;水冷壁及烟管内外壁腐蚀严重,火部分管壁减薄仅剩1.5mm左右。结果,为了确保锅炉安全运行,不得不对其进行大修,更换水冷壁管和烟管,共耗资4万多元和消耗3t多锅
In the process of using the boiler pressure vessel, due to inadequate attention to the small part of some operation and maintenance in the operation and maintenance, the corrosion of the pressure vessel of the boiler is aggravated. As a result, the maintenance level is upgraded and the national property is lost. There are many examples of this situation that should arouse enough attention from us. For example, a unit of a 4t quick chain coal-fired boilers, 1991 was due to 3 water wall tube leakage shutdown, at that time without any treatment, has been shelved for more than 4 months. Later, the inspection found that the smoke pipe has soot and scale, the furnace has a wet ash, the furnace wall is warm and damp, the drum and the header have water inside, the water wall and the smoke pipe have serious corrosion inside and outside, mm or so. As a result, in order to ensure the safe operation of the boiler, it was obliged to overhaul it and replace the water-cooled wall pipe and the smoke pipe, costing more than 40,000 yuan and consuming 3t multi-pot