Sharing winter anti-freezing experiences: Clean gas remote transmission level gauge

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I used to work in the south, where I hardly ever participated in the winter prevention measures. Now that I’m in the cold northern region of Shaanxi, I have truly experienced the harsh cold of the north, as well as the importance of taking precautions against freezing in winter. Now I’d like to share with you the story regarding the anti-freezing measures for the remote-level gauge of the clean gas separator. Lao Huang, take a look at the liquid level in the purification gas separator – why has it suddenly risen to 105% in such a short time? Near the end of my night shift (at 8 a.m.), I checked the DCS screens and detected this anomaly; upon looking at today’s weather conditions, I found that the temperature had dropped below zero. Lao Huang and I went to the site, turned on the inlet switch of the remote liquid level gauge. During the process of turning it on, we heard a \"hissing\" sound coming from inside the valve; it was likely caused by ice crystals rubbing against each other. Then Lao Huang and I used some hot water to thaw the valve, and after waiting a few minutes, the remote liquid level reading gradually returned to normal. After this process, we jointly analyzed the causes and solutions for similar situations: Cause: The remote level gauge of the purification gas separator is a double-flange type for level measurement, with the sampling point located at the bottom (lowest point) of the purification separator; as a result, a small amount of water remains in the pipeline. When temperatures are low in winter, this water freezes into ice, leading to incorrect readings from the remote level gauge. Solution: 1. Add insulation to the pipes at the sampling points. 2. Add electric heating to the pipelines at the sampling points. Similar methods can also be used for the sampling ports of similar instruments to prevent freezing and blockages in winter.