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Development and Development Trend of Magnetic Pumps at Home and Abroad

2017-10-31 14:34:39
Magnetic pump is a branch of the field of water pump, is a permanent magnet coupling principle applied to the centrifugal pump new products. Has been widely used in computer water cooling system, solar fountain, desktop fountain, handicrafts, coffee machine, drinking fountains, soilless cultivation, tooth washing, water heater pressure, hot water circulation, swimming pool water circulation filter, , In daily life plays an important role, then its development process at home and abroad is how, the future development prospects of how? Xiaobian below for everyone to read.

First, the development of foreign magnetic pump and development trend

The development of magnetic pump can not be separated from the development of permanent magnet drive technology. British HMD company in the 20th century, 40 years will be the first leakless magnetic pump to the market. 1969 Dutch Berger developed a new rare earth cobalt permanent magnet material for magnetic pump, to further improve the pump drive efficiency. At the beginning of 1970, Japan 1waki company MDX series of various stainless steel magnetic pump have come out. In early 1973, South fluorine plastic made of non-metallic magnetic pump on the market. In 1979 the original Federal Republic of Germany exhibited the latest MDF-100 magnetic pump. Later, Germany Klaus company in 1981 developed a 150kw multi-stage magnetic pump. And the transmission medium temperature increased to 450 ℃, became the world's largest one of the magnetic pump. Foreign magnetic pump flow up to 1150m3 / h, head up to 500rn, the pressure of 4.5Mpa, the maximum temperature of 450 ° c, motor power 350kw.

At present, the world's main production of magnetic drive pump are: British HMD yuan sealed pump company, T0tton pump company, Hilge pump company, the United States Goulds pump company, Japan 1wak company, Germany Klaus company, Diekow company, A11 state ler company, slm company and so on.

In recent years, the application of magnetic pump has grown dramatically, and the application range has been widened. With the rapid development of the world economy, the industrial environment, more and more stringent requirements, the scope of application of magnetic pumps will be expanding. At present, in addition to magnetic drive centrifugal pump, there are magnetic drive vortex pump, magnetic drive gear pump, magnetic drive rotor pump and other special purpose magnetic drive pump.

Second, the development of domestic magnetic pump

China's magnetic pump started in the late 1970s, in the high-power, high reliability and foreign advanced level is still a big gap. The late 70s, the domestic imports of film equipment in accordance with the micro-magnetic pump prototype, the micro-magnetic pump development. 80 years of development of the magnetic pump supporting power generally failed to exceed 18.5kw, and the speed is common, the efficiency is lower than the general mechanical transmission pump.

At present, the domestic magnetic pump design and development, manufacturing processes, materials, etc. have made great progress, can produce 200kw magnetic pump. Jiangsu University fluid mechanical engineering technology research center and the pump industry enterprises, developed a large low-calorie residual chemical magnetic pump, large multi-stage magnetic pump, high-speed magnetic pump. The application of magnetic pumps in the chemical industry will be more and more will replace all kinds of mechanical seals with centrifugal pump products.