The factors that determine the service life of radiator are not only the material of radiator itself, but also the anti-corrosion technology inside radiator, which directly determines the service life of radiator. In foreign countries, due to the good water quality of the heating system itself, ordinary radiators can be used for more than ten years. In China, due to the different heating water quality and pH, the internal anti-corrosion technology of radiator largely determines the strength of enterprises.
At present, the internal anti-corrosion technologies adopted in China mainly include active anti-corrosion and passive anti-corrosion:
1. Active anti-corrosion technology: Active anti-corrosion technology is common in the internal anti-corrosion of steel radiators, which is the fundamental solution to the anti-corrosion of steel radiators.
The corrosion of steel radiator mainly belongs to oxidation corrosion. The main problem to be solved in active anti-corrosion is to strictly control the oxygen content in heating water, and keep the oxygen content in water at a reasonable level through a series of controls to avoid corrosion. In the non-heating period, it should be maintained with water to avoid direct contact with air.
In view of the problem that traditional steel radiators are easy to be oxidized and corroded, some enterprises have developed an upgraded product-anti-corrosion King Kong. Introduction of anti-corrosion king kong: anti-corrosion king kong 6030F is a patented product. It is a subversive steel radiator, with steel cost performance and corrosion resistance much higher than that of ordinary steel radiators. Anti-corrosion King Kong 6030F radiator adopts special Mg-Al alloy installed at the bottom of steel radiator, and the active Mg-Al alloy reacts with ions in water first to avoid "under-scale corrosion" and "bottom metal corrosion". The consumption time of a magnesium-aluminum alloy is more than 15 years, which greatly prolongs the life of the radiator, does not need full water maintenance, and the warranty period is 15 years.
2. Passive anti-corrosion technology: This anti-corrosion technology is to spray a protective film on the inner wall of the radiator to isolate the surface of the radiator from water and air.
This kind of anti-corrosion technology has high requirements on the technical equipment and technology of the manufacturer. It is required that there should be no dead ends when doing anti-corrosion, and every inch of the inner wall should be complete, otherwise the consequences will be unimaginable, and a little loophole will be enough to cause great disaster. At present, the materials of protective film are also various, mainly resin materials. With other materials, the anti-corrosion technology of radiator in Dachang is relatively safe.
This paper introduces the new technology of graphene, and develops a graphene radiator in heating industry through the study of its thermal performance, which has higher heat dissipation than ordinary radiators.