In the steel mill, the need to use water for steelmaking equipment cooling, cooling water for equipment cooling after the temperature increases, which in turn also requires the use of plate heat exchanger for cooling the water after heating, and then recycling. As the water contains a large number of impurities, long-term operation of impurities deposited on the plate, resulting in plate flow channel blockage scaling, which seriously affects the heat transfer efficiency of the plate heat exchanger, so the work should be regularly cleaned.
Previously for this type of heat exchanger cleaning, more than the use of soft brushes for human brushing to achieve the purpose of eliminating the surface layer of plate dirt, this cleaning method is not only low cleaning efficiency, easy to exist cleaning dead ends, and the more hard, thick dirt layer is not easy to clean. The use of chemical cleaning agent to clean it, need to consume a lot of chemical cleaning agent, high cleaning efficiency; and cleaning needs to be secondary cleaning, water consumption is large; cleaning wastewater needs to be secondary treatment, otherwise it will cause pollution to the environment.
High-pressure cleaner, is through the power device to make high-pressure plunger pump to produce high-pressure water to rinse the surface of the object machine. It can strip the dirt and flush away to achieve the purpose of cleaning the surface of the object. Because it uses a high-pressure water column to clean dirt, high-pressure cleaning is also recognized as one of the most scientific, economical and environmentally friendly cleaning methods in the world.
The use of high-pressure cleaning machine to clean the plate heat exchanger is, high-pressure water jets huge striking force, quickly stripping the heat exchanger surface dirt, even hard dirt can be removed, compared to the traditional cleaning brush, cleaning efficiency is higher; and because in fact to water as the cleaning medium, no need to increase the chemical cleaning agent, no secondary flushing, with energy saving, saving water waste, no environmental pollution characteristics.
High-pressure cleaner for operation, you need to choose the appropriate pressure according to different dirt, if the set working pressure is too low, then the cleaning effect is not good, if the pressure is high, will cause unnecessary damage to the equipment, so pay extra attention when setting the pressure, the common working pressure is 50-70Mpa. in the cleaning before the first test, to gain working experience before carrying out the actual operation.
