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板壳式换热器敝开的板外侧通道可以实现多种板式换热器所不能实现的传热过程 ,特别是液膜传热传质过程。针对不同过程的特点设计波纹板的波型是板壳式换热器推广应用的关键。文章介绍了适合于凝结过程的同向双尺度波纹板片和适合于吸收、蒸发等液膜传热传质过程的交叉双尺度波纹板片方案。
The open passage outside the plate and shell heat exchanger can realize the heat transfer process which can not be realized by a variety of plate heat exchangers, in particular, the liquid film heat and mass transfer process. According to the characteristics of different process design wave plate corrugated plate heat exchanger is the key to promote the use of. The article introduces the two-scale corrugated corrugated sheet with the same direction suitable for the coagulation process and the double-corrugated corrugated sheet suitable for the heat and mass transfer of the liquid film such as absorption and evaporation.