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换热机组换热管的胀接顺序

  换热机组换热管胀接时由于管子伸长对管板产生一个反力泛亚电竞官网。若胀接顺序不合理,则管板可能产生各种变形。一般胀接顺序有两种不同的做法泛亚电竞官网。一种是,一端管板从中央开始按对角线,从里向外呈放射状向外胀。

智慧管壳式换热机组
  另一种是,在胀第二端管板时泛亚电竞官网,为了减少换热机组管子的残余纵向应力,应当从管板最外层的管子先胀,逐步从外围按对角线向里胀泛亚电竞官网泛亚电竞官网,最后到中心,否则会使中心部分管子的拉应力增加很大。对薄管板采用强度胀密封飞换热机组,特别要根据管子的壁厚及管板的结构和材质来确定采用的胀管顺序,否则会对管板产生破坏。

泛亚电竞官网
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