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2018-05-11View Original

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Reply #22018-05-12

["空冷器", "空冷器的管内膜传热系数越高，为什么还要选用高翅？系数低为什么选用低翅甚至是光管？" "因为采用的外径22225 mm的翅片高为 from 00 from 5 mm的是是低翅片 " "11 "1为了管束的热膨胀。" "管内物料、换热介质不同不同 "传热系数不一样" " "但是管外靠空气冷却" "传热系数最低" "因此换热的瓶颈在管外" " "因此加大管内传热系数；管内传热系数如果如果比 " "比比比管外的传热系数还 " " " " " " " " " " " " " "因此加翅片也改善不了效果" " "因此用光管也可" "楼" "见解很厉害！！！！！"

Reply #32018-11-09

管内物料、换热介质不同，传热系数不一样，但是管外靠空气冷却，传热系数最低，因此换热的瓶颈在管外，所以加大管内传热系数；管内传热系数如果比管外的传热系数还低，加翅片也改善不了效果，因此用光管也可

Reply #42018-11-23

楼上见解很厉害！！！！！

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