Heat exchanger switching
Thread Content
The cold side of the heat exchanger involves two types of fluids, which can be switched back and forth. I would like to ask everyone how these two fluids can be switched, and what precautions should be taken during the switching process
This post was last edited by netuser on 2010-3-28 at 16:55. What are the two media referred to as \"cold media\"? Are they water and cold oil? In that case: 1. Replace water with hot oil, and after stopping the water supply, make sure to displace it with nitrogen. 2. When switching from cold oil to water, after stopping the use of oil, first use steam to push the oil into the sludge tank; once no oil remains in the steam, gradually introduce water as the medium.
Are the two media water and oil, or two types of oil? The key to making the switch is, first, not to allow pressure to build up, and second, to do it slowly
http://bbs.hcbbs.com/thread-572697-1-1.html There are discussions on this; you can take a look!
The cold circuit consists of circulating water and low-temperature hot water, while the hot circuit is made up of oil. How does the switching between circulating water and low-temperature hot water take place?
Do you mean desalinated water by low-temperature hot water? These two types are easy to cut. When switching from circulating water to hot water, it is necessary to purge the system; however, no purging is required when switching from hot water to circulating water
If I understand correctly, what the poster means is that there are two types of cold media in the heat exchanger, and it’s about switching between these two cold media! If that is the case, the most important thing during the switching process is to prevent pressure buildup of the cold medium (such as vaporization), and secondly, to ensure that there are no adverse interactions between the two cold media! During the switching process, the impact on stable production should be minimized, and the heat medium must not cause any effects on subsequent processing as a result of the switch to a cold medium. For residents of other buildings, it’s sufficient to take a look at the relevant technical Q&A.