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当前,热水锅炉的使用数量越来越多,蒸汽锅炉改装成热水锅炉的比例相当大。这给锅护的安全运行带来隐患。例如:某单位一台K ZG2吨/时蒸汽锅炉,一九八四年自行改为热水锅炉后,今年七月二十三日发现锅筒底部渗漏。经检查,发现筒体内部泥垢和水垢厚达1 00毫米左右,清除出泥垢多达二小推车,渗漏处有一条70毫米环向裂纹。锅炉后棚管也因垢厚过热胀粗变形,排污管已被堵死。不得不对筒体裂纹作了焊补修理,对锅炉后棚管作了更新。锅检所得知此消息后,立即派员赶到现场,发现
At present, the use of hot water boilers is increasing, and the proportion of steam boilers converted into hot water boilers is quite large. This brings hidden dangers to the safe operation of the pot. For example, a unit of K ZG2 tonne / hour steam boiler of a certain unit was changed to a hot water boiler in 1984 and leakage on the bottom of the drum was found on July 23 this year. After inspection, it was found that the mud and scale inside the cylinder were as thick as about 100 mm, as many as two small carts were removed from the mud and there was a 70 mm circumferential crack at the leak. After the boiler shed because of thick overheating expansion thick deformation, sewage pipes have been blocked. Have to crack the cylinder made of welding repair, the shed after the boiler was updated. After the pot seized that the news, immediately sent to the scene and found