厚壁锅筒产生错边的原因浅析  

Analysis on Deviation of Thick Wall Shell Fabrication

作　　者：张本兴[1] 赵宽[1] 于秀清[1] 

机构地区：[1]哈尔滨锅炉厂有限责任公司,黑龙江哈尔滨150046

出　　处：《锅炉制造》2000年第2期34-36,共3页Boiler Manufacturing

摘　　要：锅筒是锅炉的主要部件，其制造工艺也是锅炉制造中最复杂的，在制造中产生错边是不可避免的，随着锅炉容量的不断增大，锅筒的壁厚也不断的增厚，例如300 MW锅筒的壁厚已增加到203 2 mm(8英寸)。由于错边处应力增大，有效壁厚变小，对锅筒的质量有一定的影响，所以制造时应使错边的尺寸和错边的范围控制在允许的标准范围中。根据我们的工作经验，将锅筒的错边原因做一分析，供有关人员参考。： Shell is the main part of boiler. Its fabrication technology is also the most sophistic, deviation is unavoidable when fabricating.With the increasing of boiler vessel capacity, the wall become thicker and thicker, it is up to 203.2 mm(8 inch)for 300 MW boiler. With stress increasing, valid wall thickness become thin, this imfluences the quality in some degree. So deviation should be limited with certain scare permitted by procedure. In this paper, some analyses for the former of deviation as amatter of experience for reference to relevant personnel are given.

关 键 词：厚壁锅筒 错边 锅炉 制造工艺 

分 类 号：TK226[动力工程及工程热物理—动力机械及工程]