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One of the reasons for the safe operation of compensators is proper pipeline installation and a clean pipeline free of obstructions. So what impact does scaling in the pipelines have, and how can this scaling be removed? Next, an analysis is conducted on water transmission in pipes with scale formation. When pipes are scaled, resistance increases and their water transmission capacity decreases. To restore the pipes’ proper water transmission capacity, it is necessary to clean the pipes and line them. Pipe cleaning is the pipe scraping process carried out before lining the inner wall of the pipe. There are two methods for cleaning the inner wall of the tube, along with their respective applications: 1. Water flushing The scale inside pipes can be either soft or hard. A common method for removing the soft scale within pipes is to flush them periodically with pressurized water, with the flow rate during flushing being 1.5 times higher than the normal operating flow rate. The soft scale inside pipes that can be removed by pressurized water refers to deposits caused by suspended particles or iron salts; although they settle at the bottom of the pipes, they are not firmly attached to the pipe walls and can be washed away with water. To facilitate the removal of scale inside the pipes, ice balls, rubber balls, plastic balls, etc., are placed in the sections that need to be flushed; these balls help create higher local flow velocities at the reduced cross-sections of the pipes. Once the hockey puck is placed inside the tube, it does not need to be taken out of it. For areas where the scale is particularly hard, a wooden plug can be placed inside the pipe; the two ends of the plug are connected by steel wire ropes, and the plug is pulled back and forth to enhance the cleaning effect. 2. Air and water flushing. 3. High-pressure jet flushing. High-pressure water is used; the forward reaction force generated by shooting the water backward propels movement. The scale inside the pipe breaks off, shatters, and is carried away by the water flow. This method is suitable for medium and small pipes; the length of the high-pressure hose commonly used is 50. 4. Cleaning by air pressure pulse method. The equipment for this method is simple, easy to operate, and has a low cost. The air intake and drainage devices can be installed in inspection wells, thus eliminating the need to disconnect pipes or dig the road surface. II. Mechanical cleaning When a hard scale forms on the inner wall of the compensator tube, it is difficult to remove it merely by washing with water; in such cases, mechanical scraping is required. There are various types of pipe scrapers. For removing scale from pipes with smaller diameters, they consist of a cutting ring, a scraping ring, and a wire brush; a steel wire rope is used to move these components back and forth inside the pipe. First, the cutting ring creates deep grooves in the scale on the inner wall of the pipe, then the scraping ring removes the scale, and finally the wire brush cleans everything away. The advantage of this method is that it operates under favorable conditions and allows for fast scaling removal. The disadvantage is that the friction between the pipe scraper and the pipe wall is very high, making back-and-forth dragging quite strenuous, and it is difficult to clean the pipeline thoroughly.