Compressor anti-freezing
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I’m curious to know, fellow Sichuan folks, what anti-freezing measures are taken for the large compressors in your installations during winter... Are there any covers over the water circulation sides of the units with steam applied to them?
{:2_30:} We are in the south, where it’s relatively simple to prevent freezing and condensation of the machinery during winter; the lowest temperatures reach only minus 5 degrees (and that only for a few days). The machinery is located inside buildings, and it’s sufficient to maintain an appropriate temperature for the lubricating oil as well as appropriate temperatures at the inlet points of the machinery (including the inlet temperatures for the intermediate stages). It’s sufficient to open a bit of steam from the lubricating oil tank in order to control the oil temperature in the tank.
Here, whether it’s an operating unit or a stationary one, the circulating water keeps circulating continuously. After switching units, use multiple purges to remove all liquid from the stopped unit, paying special attention to preventing freezing in the compressor vent line.