Regarding the heat exchanger boot structure
Thread Content
A few days ago, while browsing the web in a foreign-language forum, I came across a post regarding the structure of the boot in heat exchangers. The address of that post is http://bbs.hcbbs.com/viewthread.php?tid=382597&highlight=boot. I would like to learn more about this component; if anyone knows anything about it, please share it. Chinese or English is acceptable. Its functions, design methods, standards, and so on. Thank you all here. This post was last edited by wode*aohei on 2009-2-9 at 16:19.]
I saw the original poster’s post yesterday. Today I asked some designers who specialize in pressure vessels, and they said that such a structure does exist. We use it in horizontal evaporators. The shell side contains liquid ammonia, with a pressure of about 12 kilograms and a temperature of around 31 degrees. The tube side contains water; the quality of this water is unknown, but the temperature ranges from 30 to -40 degrees. At the bottom of the shell side, there is a component that resembles a BOOT – we call it an oil pack. Its purpose is to separate the oil from the ammonia. That’s all I know. Please let the original poster verify whether this information is correct.
http://bbs.hcbbs.com/thread-337179-1-1.html There is an explanation there; take a look
I took a quick look, but I’m not sure if this explanation is correct. Its structure is similar to that of a liquid container; the English term \"boot\" also means hopper, so I think this name is appropriate. Its function is to hold the material that has condensed, and a condensate pump should be installed below it.
Replying to the person above: I checked relevant information today, and what is mentioned on the second floor regarding the evaporator is likely an oil collector. It is used in ammonia night refrigeration systems. I think the boot should be the drain tank of the condensing heat exchanger; I share a similar view as someone upstairs. I saw this explanation in the heat exchanger design guidelines; it states that it is generally used in cases where the material contains components that are prone to freezing. Please discuss more on aspects related to this type of structure.