In the steel mill, the need to use water for steelmaking equipment cooling, cooling water in the cooling equipment after the temperature rise, and then also need to use the plate heat exchanger for the warming of the water after the cooling process, and then recycling. As the water contains a large number of impurities, long-term operation of impurities deposited in the plate attached to the plate, resulting in plate runner blockage scaling, seriously affecting the heat transfer efficiency of the plate heat exchanger, and therefore should be cleaned regularly.
In the past for this type of heat exchanger cleaning, more than the use of soft brushes for human brushing, in order to eliminate the surface layer of plate dirt purpose, this cleaning method is not only low cleaning efficiency, easy to clean the dead space, and the harder, thicker layer of dirt is not easy to clean. The use of chemical cleaning agent for its cleaning, need to spend a lot of chemical cleaning agent, high cleaning efficiency; and after cleaning the need for its secondary cleaning, water resources, energy consumption; cleaning of wastewater needs to be secondary treatment, otherwise it will cause pollution to the environment.
High-pressure cleaner, is through the power unit so that the high-pressure plunger pump produces high-pressure water to rinse the surface of the object machine. It can strip the dirt, flush away, to achieve the purpose of cleaning the surface of the object. Because it uses a high-pressure water jet to clean the dirt, high-pressure cleaning is also recognised worldwide as one of the most scientific, economical and environmentally friendly ways of cleaning.
The use of high-pressure cleaning machine for plate heat exchanger cleaning is, high-pressure water jets huge blowing force, rapid stripping of heat exchanger surface dirt, even if it is hard dirt can be removed, compared with the traditional cleaning brush, the cleaning efficiency is higher; and because in fact, water as a cleaning medium, no need to increase the chemical cleaning agent, no need to carry out a second rinse, with the characteristics of saving energy, saving water waste, no environmental pollution.
High-pressure cleaner for operation, need to choose the right pressure according to different dirt, if the working pressure is set too low, then the cleaning effect is not good, if the pressure is high, will cause unnecessary damage to the equipment, so in the setting of the pressure to pay extra attention to the time, the common working pressure of 50-70Mpa. in the cleaning of the first test, to gain experience before the actual operation.
