512 cycle machine
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Why is there always frost formation on the return air of the front filler in our plant’s 512 cycle machine? What could be the reason? Is it related to the H2 in the synthesis tower?
It should be filled with liquid; check the ammonia separator.
If liquid ammonia is present in the circulating gas, it vaporizes at the packing, absorbing a large amount of heat, which causes the moisture in the air to condense and eventually freeze.
1. With liquid. It can be determined by checking whether the inlet buffer is frosted and the temperature at the outlet of the ammonia separator. 2. The air leakage rate from the filler increases. By using a sound probe to detect the gas flow rate, it can be determined that this technique requires familiarity with the site, and only ordinary operators can perform it; technicians are not capable of doing so. 3. Some people might say that if the backflow of filler air is severe, there should be heat generation – indeed, that means the leakage is even worse. :lol