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我厂在大修一吨卧式快装锅炉时,发现某锅炉厂生产的这台锅炉未按设计图纸施工,锅炉的前烟箱1与小烟室3之间的烟管2不是用锅炉钢管,而是用直径为54mm的普通无缝钢管制造的(见图1)。对于锅炉使用来讲,这种代用是不安全,所以也是不允许的,必须全部换掉。更换这批烟管要把锅炉前烟箱与小烟室的烟管管板孔由直径φ54.5mm镗大到φ57.5mm。管板孔的总
When I overhaul a ton of horizontal quick-loading boiler, I discovered that this boiler produced by a boiler plant failed to be constructed according to the design drawings. The smoke pipe 2 between the front smoke box 1 of the boiler and the small smoke box 3 is not a boiler steel pipe, But with a diameter of 54mm ordinary seamless steel pipe manufacturing (see Figure 1). For the use of the boiler, this alternative is not safe, so it is not allowed, must be replaced. Replace the batch of tobacco pipe to the front of the boiler smoke box with small smoke tube tube plate hole diameter φ54.5mm boring large φ57.5mm. Tube plate hole total