Is there any good way to prevent the packing material inside outdoor towers from being damaged by freezing when it isn’t in use for long periods of time?
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Is there any good way to prevent the packing material inside outdoor towers from being damaged by freezing when it isn’t in use for long periods of time?
Is it that cold? Can filler get damaged by freezing? If you’re really worried about it getting damaged from freezing, you can use ethanol or propanol in a reflux process to remove the water inside, thereby preventing damage from freezing.
Consider blowing hot air inside to maintain air circulation and carry away water vapor. At the same time, ensure proper external insulation.
It’s a false proposition to say that it can be damaged by freezing. Fillers can be metal, ceramic, or plastic – which one can be damaged by freezing? It is possible for freezing in winter to cause the pipes to burst; be sure to clean out any solid materials from the packing and ensure smooth drainage, as well as prevent crystallization during winter
What the original poster might be referring to is the concern, when the material isn’t used for a long time, that the moisture remaining on the surface of the filler could freeze and expand in winter, thereby crushing the ceramic filler
For long-term parking, it is recommended to first purge the contents inside the tower using steam or similar methods, then dry the tower and the packing with instrument air, and finally introduce an appropriate amount of nitrogen to keep the tower under a slight positive nitrogen pressure seal.
But over time, the temperature will also drop, right? It’s impossible to guarantee that there is no water inside
Obsessed. Getting stuck on a false premise – it’s all theoretical talk, with no sign of any practical experience; have you heard of anything similar? Water flows downhill; only a very small amount remains. The volume expansion of water can be compensated for by the porosity present
Release water； Use the steam dryer to clean as well ； (This is how the packing in our cooling tower is arranged.)
This post was last edited by wycasia on 2023-1-11 at 14:36. It’s a modern version of the worry about things that aren’t a problem; the expansion rate of water when it freezes is only 9%, while the porosity of fillers is over 90%. There’s still a long way to go before freezing damage occurs. What really needs to be a concern are the pipes, as well as all areas where liquid can accumulate, both inside and outside them
The original poster didn’t say that what remained on the filler inside the tower was water! In addition to metal fillers, it is also possible to use ceramic or plastic materials. If what remains are flammable, explosive, toxic, harmful, or highly viscous materials, purging and nitrogen blanketing before a long-term shutdown is the usual practice.