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我市运输公司1982年购进一台无锡县第二锅炉厂。(现改名为太湖锅炉厂)生产的KZG-8型锅炉,1988年经检查发现锅筒底部有严重的腐蚀坑10余处。一般面积为20~30mm~2、深2.5~3mm、最深达4.5mm(锅筒实测壁厚9.7mm),超过国家标准的规定。经分析后我们决定采用焊补工艺进行修理。由于锅炉设计问题,没有人孔,维修人员无法进入底部修理。因此,我们将第3回程烟管自上而下沿边缘抽掉10根烟管和2根拉管(见图),这样,修理人员
Our city transport company bought a second Wuxi boiler factory in 1982. (Now renamed Taihu Boiler Factory) production of KZG-8-type boiler, 1988 inspection found that the bottom of the pot has a serious corrosion pit more than 10. The general area of 20 ~ 30mm ~ 2, deep 2.5 ~ 3mm, the deepest of 4.5mm (drum measured wall thickness 9.7mm), more than the national standard. After analysis, we decided to use welding repair process for repair. Due to boiler design issues, no man holes, maintenance personnel can not enter the bottom of the repair. Therefore, we will be the first three return pipe along the edge of the smoke from the top and pull out 10 tubes (see photo), so that repair personnel