["[" ["Apresse! Por favor,帮忙计算一下大概需要多大的换热面积？？", "Fluxo de nitró gás 30 m3/h, "Temperatura 1 " "Pressão kPa" "Conteúdo de丁同 500 "经后降温至4 " "再经过二级深冷至- 5 " "把丁同都冷却下来" "还请帮忙计算一级、perímetro de换热器大概需要多少面积。" "换热器材质、循环水规格都没有" "换热器可以34" "循环水上水38回回水38" "计算" "溶剂含量很小" "主要是氮气" "这个工况打算采用什么传热元件？常规光管设计会比较大" "若考虑我这内展翅片换热的话" "还需要核实其他一些设计参数" "站内留个联系方式交流" "你你确定- 5 " "一定一定温度下丁同的饱和蒸气压是一定的吧？ " "一定温度下饱和蒸汽压是一定7 " " " "但是混合气体中" " 5 " " " "绝对很低的" " " " "按组分含量计算出来为 4 " " " "低于饱和蒸汽压" " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " kukpa kuk k