风管保温结露怎么处理,现场排查经验

风管结露很多时候不是简单"保温棉不够厚"。我处理过一个店铺项目,送风管外面一直有水珠,业主以为是空调漏水。后来拆开看,管道保温接缝没封严,吊顶里又有热湿空气,冷风一走,外表面温差太大就开始结露。 排查时我会先看三件事:风管表面有没有露点条件,保温层有没有破口和压扁,vapor barrier 接缝是不是连续。很多人只补一块保温棉,但铝箔胶带没压实,穿吊杆和支架的位置也没处理,水还是会从这些小地方出来。 还要看系统运行。送风温度压得太低、风量不平衡、吊顶回风不畅,都会把结露问题放大。风管结露不能只当装修问题看,HVAC、保温、吊顶环境要一起查,不然补完一段,另一段又开始滴水。

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