中文(简体) In the past, manual cleaning was usually used when cleaning plate heat exchangers. Wire brush is one of the commonly used tools. Due to time-consuming and laborious, it has been gradually replaced by machinery. However, for some small manufacturers and occasions with few heat exchange equipment, manual cleaning is still a common method. In fact, even when cleaning with a wire brush, mechanization can be achieved. It is reported that multiple wire brushes can be connected to a transmission device and driven by a motor to clean the inner wall of the pipeline; In addition, the wire brush can have multiple wire brushes, the moving speed is about 0.25m/s, and the cleaning efficiency is about 4-5 times that of manual cleaning. The disadvantage of this method is that it can only clean the oxide layer with low hardness.
The steel wire brush in the cleaning machine can also be replaced by a scraper. The scraper can be connected to the flexible shaft to remove all parts of the oxide skin surface. However, the device is only suitable for circular section and is not easy to clean the inner wall of non-circular section pipeline or shell. As long as the appropriate scraper is selected, it can be used to remove the oxide layer with different hardness and will hardly cause great damage to the inner wall of the pipeline.
