空调压缩机结霜的原因

  • Article source:Industry News
  • Website editor:莱诺真空泵
  • Reading volume:
  • Publication time:2020-05-16 08:48:42

天气热了,没有空调在路上开车宛如一个火炉,许多车主在开完空调停车之后却发现压缩机出现结霜,天气这么热还会出现结霜,空调压缩机结霜是什么原因呢?

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制冷剂不足

制冷剂不足为什么会导致压缩机结霜啊,其实这也是许多车主想不通的地方,因为车主所充注的制冷剂量不足,这时候蒸发器内制冷产生的霜会一直结到压缩机上,而冷凝器没有得到足够的制冷剂,也就产生了所谓的结霜现象

制冷剂量太多

车主所充的制冷剂太多也会导致出现结霜现象,这是因为内部的充注量太多从而占据了冷凝器内部分容积而使冷凝压力增高,进入蒸发器的液体随之增多。蒸发器中液体不能完全气化,使压缩机吸人的气体中带有液体微滴。这样,回气管道的温度下降,但蒸发温度因压力未下降而未变化,过热度减小,这时候车主其实可以看到很明显的结霜现象

制冷剂蒸发问题

由于汽车的外部原因从而出现制冷剂在蒸发器内部蒸发不足甚至不蒸发,这时候压缩机就回开始出现结霜,严重的情况下甚至会导致湿压缩

中央空调问题

许多车主认为中央空调有问题跟压缩机有什么关系,其实也是具有一定的关系,因为中央空调回风不足或者空调箱过滤网严重堵塞,这时候冷水机组的主机压机回气管会出现结霜,同时排气的温度也会很低

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