The principle and harm of scaling in wall-hung boiler The core problem of the wall-hung boiler is the efficiency and service life of the heat exchange, and the biggest factor affecting these two aspects is the scale problem. Especially when we use domestic hot water, because of the need to constantly fill new water, and the water quality in most parts of the country is hard, this will greatly increase the fouling rate of the heat exchanger. As the scale adhering to the inner wall of the heat exchanger is continuously thickened, the diameter of the heat exchanger will become thinner and the water flow is not smooth, which not only increases the burden of the water pump and the heat exchanger, but also the heat exchange efficiency of the wall-hung boiler. It will also be greatly reduced, mainly due to the increase in air consumption of the wall-hung boiler, insufficient heating, hot and cold water in hot water, and reduced hot water. If the heat exchange components of the wall-hung boiler are finally operated under such a high load state, the damage to the wall-hung boiler is very severe, especially the plate heat exchanger is more harmful, and the user should pay special attention when selecting. Try to choose a cannulated water heater. Moreover, it is also necessary to select a wall-mounted furnace with a closed design so that no oxygen in the atmosphere enters, so it is impossible to combine with calcium, magnesium, sodium, etc. in the water, so the probability of scaling is reduced. The influence of impurities and scale on the boiler in the radiator The wall-hung boiler is responsible for the circulation of water in the heating system. Because the water contains impurities and is acidic, there will be some corrosion inside the radiator and the pipe. Most of the radiators we use are made of cast iron. The sand mold residue and other impurities in the radiator cannot be completely washed out during the installation. In addition, the water in the heating system is always closed, and the heating part of the boiler is There is no Filter, so the rust residue inside the radiator and the pipe and the impurities of the water itself will enter the heat exchanger again through the circulating water pump of the wall-hung boiler. These impurities are continuously decomposed under high temperature conditions, and some of them become scale adhesion. The diameter of the tube is made thinner on the inner wall of the heat exchanger. Therefore, the pressure of the circulating water pump is further increased, and the long-term operation will cause the circulating water pump of the wall-hung boiler to decrease or even jam, which seriously affects its service life. The water in the radiator should not be replaced frequently For the heating system, since the radiator contains a large amount of impurities during the initial use, it is recommended to drain the dirty water after one year, refill the new water, and replace it after several years. Because every time the water is changed, a large amount of water and alkali is brought in, and the amount of alkali in the fixed water is certain; therefore, the water in the heating system should not be replaced frequently. After a heating season, if cleaning and maintenance, it is only necessary to carry out the wall-hung boiler separately. Sea Valve,Sea Water Gate Valve,Marine Sea Valve,Steel Right Angle Sea Valve Jiangsu Hida Marine Valve Co., Ltd , https://www.haidavalve.com
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