冷凝法废气净化系统的分类及适用条件-山东巴威环境工程有限公司

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冷凝法废气净化系统的分类及适用条件

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冷凝法废气净化系统所用的设备主要是冷凝器。冷凝器形式分直接接触式冷凝器和表面换热式冷凝器,即直接冷凝和间接冷凝。在直接接触式情况下,废气中的voc蒸气与冷的液体直接接触而冷凝。所用的冷凝器如同吸收设备一样,大多采用喷洒塔,文丘里洗涤器或填料塔。直接接触式大多用水来冷却废气,虽然设备简单,投资少,但会造成废气净化问题转变为废水处理问题。表面换热式冷凝器主要有管束式换热器和翅片式换热器,后者是用空气作为冷却介质,即空冷器。直接冷凝法和间接冷凝法净化voc工业废气的设备操作流程,如图1所示。

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