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换热器

换热器(亦称为热交换器热交换设备)是用来使热量从热流体传递到冷流体,以满足规定的工艺要求的装置,是对流传热热传导的一种工业应用。

在一般空调设备中都有换热器,即空调室内机和室外机的冷热排;换热器作放热用时称为“冷凝器”,作吸热用时称为“蒸发器”,冷媒在此二者的物理反应相反。所以家用空调机作为冷气机时,室内机的换热器称作蒸发器,室外机的则称为冷凝器;换做暖气机的角色时,则相反称之。

分类

换热器可以按不同的方式分类。

  • 按其操作过程可分为间壁式、混合式、蓄热式(或称回热式)三大类。
  • 按其表面的紧凑程度可分为紧凑式和非紧凑式两类。
  • 按结构可分为卷板式换热器、板式换热器、管壳式换热器,还有一种波节管换热器也属于管壳式换热器,换热效率较高。
  • 按介质类别可分为介质1对介质1换热器、介质1对介质2换热器。

参见

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换热器
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