Gas-fired hot water boilers require high water quality when in use, which affects the performance of the boiler and the length of use time to some extent. If the boiler is directly supplemented with tap water or water with more impurities, it will cause the magnesium and calcium ions in the water to be in the water. Some white deposits are formed during high-temperature heating, which can cause scaling problems and reduce the heat transfer efficiency of the boiler. Long-term accumulation and failure to clean up will easily bring hidden dangers to the safety of boiler operation.

　　1. The heating tube is burnt due to overheating. The scale has poor thermal conductivity. Too much scale on the heating tube will cause the internal temperature of the heating tube to be unable to diffuse, which will cause the outer tube of the heating tube to crack.

　　2. The higher the thickness of the scale, the greater the fuel consumption, and the lower the thermal conductivity of the heating tube, thereby prolonging the heating time.

　　3. The boiler steam pressure is reduced, the heat will not be transferred to the boiler water quickly, and the output pressure of the equipment cannot meet the requirements for use.

　　4. It is very difficult to remove the scale on the inner wall of the boiler or the heating tube, especially the heating tube or furnace body rupture, corrosion and other violations caused by the scale, which not only damages the equipment, but also consumes a lot of manpower and material resources to overhaul, leading to overhaul Cost increases.

　　5. After the boiler is severely fouled, it needs to be cleaned with chemical agents. Too many cleaning times will cause damage to the boiler, reduce the service life of the boiler, and increase potential safety hazards.

　　At present, gas boiler water will be used after soft water treatment. It is a kind of raw water dehardening pretreatment device launched for boiler fouling. The principle is to use resin to separate soft water technology through the sodium ion exchange softening method of water, and the raw water through sodium ion exchange During the treatment, the Ca2+ and mg2+ in the water are replaced by the Na+ in the exchanger, so that the calcium and magnesium compounds that are easy to scale are converted into easily soluble sodium compounds that do not form scale, so that the water is softened.