空调箱的风机将盘管的凝结水带到了风机段，使得风机段保温湿透、开始存水并漫溢出来，造成吊顶损坏，经检查，空调箱的排水已做存水弯，且积水盘内基本没有存水。其他空调箱并没有出现类似问题，且风管与压头均一致，请问到底是什么问题呢？？
空调箱的风机将盘管的凝结水带到了风机段，使得风机段保温湿透、开始存水并漫溢出来，造成吊顶损坏，经检查，空调箱的排水已做存水弯，且积水盘内基本没有存水。其他空调箱并没有出现类似问题，且风管与压头均一致，请问到底是什么问题呢？？
2楼
盘管的迎面风速是否过大，出现带水现象。
回复
3楼
一个是表冷段的风速过大，有很多种可能。另一个原因是挡水板没有处理好，的怪凝结水挡不住！
回复
4楼
表冷段是在负压段吧？应该是存水弯的水封高度不够造成的。检查一下水封高度有多少。
回复
5楼
1.check wheteher the cooling coil face velocity is too large. for blow-through unit, the velocity difference in face is 25%, draw-through unit is 20%. when to design unit, it is better to use 500fpm face velocity for cooling coil. lower is better but not less than 300fpm.
2. check the cooling coil height. the requirement of ASHRAE is chilled water cooling coil should not exceed 45". otherwise, you have to use a long drain pan.
3. the distance between cooling coil and fan should be long enough. larger than the fan wheel.
回复
