Winter anti-freezing inspection
Thread Content
With 5°C during the day and -10°C at night, will a pipeline with a diameter of 100 mm and a length of 50 meters freeze?
It is mainly related to various factors such as the fluid medium inside the pipe, fluid temperature, pressure, flow rate, and the level of insulation. If it is a water pipe without any insulation, it will definitely freeze.
The pipeline is insulated, and the water temperature is 40°C. (Is it related to pressure?) ) The medium is water and the pressure is at atmospheric pressure; how long can such a pipeline withstand operation without insulation, and with insulation?
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The most important factor is the flow state; if there is no flow, freezing will definitely occur. The faster the flow rate, the less likely freezing is to happen. In our setup, the waste water pipes lack insulation, and when the pump fails and pumping stops, and cleaning is forgotten, the pipes freeze solid within just one night – the temperature is around minus 10 degrees. I haven’t paid attention to exactly how long it was frozen. The desalination water pipeline also froze once; the water flow within it stopped because the long pipeline was too narrow and had a small diameter, and freezing of the water in that pipeline prevented flow. Due to the long length of the pipeline, it was eventually cut into several sections; after cleaning them with steam, they were welded together. It was a real hassle in such cold weather :(