Spiral wound tube heat exchangers are the general term for shell and tube heat exchangers in which one or more streams of tub-side media flow inside spiral wound heat exchange tubes and conduct interwall heat exchange with shell-side media through the heat exchange tubes. They have a compact structure, small temperature difference stress, can contract by themselves, have a large heat transfer area per unit volume, and can achieve multi-stream and multi-phase flow heat exchange processes. They have the advantages of high efficiency, intensification and energy conservation. Since the 1980s, with the development of large-scale complete set of equipment projects in fields such as natural gas and coal chemical industry, spiral wound tube heat exchangers have begun to be widely applied in areas such as natural gas liquefaction, low-temperature methanol washing, low-temperature liquid nitrogen washing, and air separation, becoming indispensable heat exchange equipment for such processes.
能清除汽车积碳、能让汽车尾气排放更符合环保标准，还能让一箱油跑出“一箱半油”的效果
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