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双管板换热器主要适用于壳程与管程介质严格禁止混合使用的场所。另一种认为双管板换热器可用于管、壳程间介质压差很大的场合,设计在内外管板之间的空腔中加入一种介质,来减小管壳程间介质的压差,。目前双管板换热器在防止管、壳程介质串流的问题上有着明显的优势。论述双管板换热器的壳体、管板、折流板等的制造工艺方法、管板预装、管板与换热管的连接方法,并且在制造生产中值得注意的几个关键问题。
Dual-tube heat exchanger is mainly suitable for shell and tube media strictly prohibited mixed use of the place. Another think dual tube heat exchanger can be used for the tube, the pressure difference between the shell and the media is very large, designed to add a medium between the inner and outer tube plate cavity to reduce the media between the tube and shell Pressure difference,. At present, double-tube plate heat exchanger has obvious advantages on the problem of preventing the flow of medium in the pipe and shell side. Discusses the manufacturing process of the double-tube plate heat exchanger shell, tube plate, baffle, etc., the pre-assembly of the tube plate, the connection method of the tube plate and the heat exchange tube, and several key issues worth noting in the manufacturing and production .