中效过滤器为什么安装在送风机之后

2025-03-29 23:25:41
推荐回答(2个)
回答1:

  中效过滤器安装在送风机之后,因为送风机后是正压段,中效过滤器应设置在送风机出口的正压段上,以免经过中效过滤器的洁净空气被渗入到空气处理机组内的未被处理的空气所污染。
  空气过滤器的分类:
  (1)粗效过滤器:用于过滤粒径为10~100μ m的灰尘,一般 采用中、粗孔泡沫塑料过滤器、无纺布过滤器以及金属网格浸油 过滤器。
  (2)中效过滤器,用于过滤粒径为1~10μ m的灰尘,一般采 用玻璃纤维过滤器以及滤料纤维直径约10μ m的无纺布过滤器和 中、细孔泡沫塑料过滤器。
  (3)高效(亚高效)过滤器,用于过滤粒径<1μ m的灰尘,通 常采用超细玻璃纤维、超细石棉纤维以及滤料纤维直径小于1μ m的 滤纸多次折叠组成的过滤器。
  空气过滤器的安装位置
  粗效过滤器应安装在空气处理机组的新风口之后 ,或新、回风混合段之后,空气预热器之前,以防预 热器表面积尘降低传热效果。
  中效过滤器应设置在送风机出口的正压段上,以免经过中效过滤器的洁净空气被渗入到空气处理机组内的未被处理的空气所污染。
  高效过滤器应设置在洁净室的送风口处,以保证 经过三级过滤的洁净空气不被再次污染。

回答2:

风机后面是正压段,中效过滤器设置在正压段,能保护表冷段不受污染,还可完全避免中效过滤器受潮及滋生细菌,及防止外部没有经过滤的空气进入影响房间洁净度。
附:风机的送风段俗称‘风机后’,吸凤段俗称‘风机前’

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