Heat exchanger cleaning device

The adverse effects caused by the scale of industrial production includes several aspects. First, the scale is very low thermal conductivity, reducing the heat transfer efficiency of the equipment, serious only the original 20%; second, the accumulation of scale has increased thermal resistance and resistance to flow, impede the normal operation of the device; and third, the accumulation of scale cause corrosion and shorten equipment life; fourth, increasing the time and cost of the equipment cleaning, use of chemicals to clean pollution problems still exist; fifth, scale build-up can lead to poor performance, increase operational risk. Beijing University of Technology Enhanced Heat Transfer and Energy Conservation, Ministry of Education Key Laboratory of paper pointed out that according to incomplete statistics, China due to corrosion, fouling scrapped heat exchanger of about ten thousand units a year, only 50,000 tons of steel it consumes The direct economic loss of 200 million yuan or more. According to national statistics, the annual retirement due to mechanical scale caused direct losses of up to 10 billion yuan. Shandong University essay School of Energy and Power process description, the scale of poor thermal conductivity, thermal conductivity, heat transfer surfaces are generally only major steel timber 1/50 to 1/30, as compared with steel good conductor of heat, bigger difference. Scaling is also a major problem plagued the oil refining industry. China University of Petroleum in 2010 in a paper pointed out that with the development of oil industry and oil properties tend to deteriorate, higher content of impurities in crude oil processing, heat transfer equipment fouling problems within the increasingly severe, to refining companies resulting in a huge waste of energy and economic losses. Features macros, and saving heat exchanger cleaning device: 1 filter scale: the pre-scaling patented technology, dynamically adjusting the circulating water LSI (Langelier) index, a high-frequency signal by the collector of the power generated by the host body of water to produce special electrochemical reaction, formation of a specific field, promote calcium and magnesium ions lose electrons after being attracted to the collector and the formation of crystals in the collection plate. Effectively reducing the water conductivity and hardness, maximize the cooling effect to maintain. 2, rust: specific high frequency electromagnetic field changes the original physical properties of water, forming a low potential of water, the role of low potential of reducing water, rust (Fe2O3) by the reduction of black iron oxide (Fe3O4). Black iron oxide into a hard substance does not dissolve in water, the water in the surface layer of the protective film of good, hard, corrosion-resistant, corrosion is no longer able to protect the water, the water clean. And under the action of electrochemical rust, it is adsorbed in the trap.