Expand application areas and enhance technical performance

Expand application areas and enhance technical performance
1:magnetic transmission is the safest the most effective solution to seal field
Permanent magnet drive the magnetic couplings for mechanical seal, the hazardous, toxic, pollution, dangerous, pure, valuable products and the production process is a security solution and its application range is very wide.Petroleum chemical industry, medicine, film, electroplating, nuclear power industries most of the liquid is corrosive, inflammable, explosive, toxic, precious, leak can lead to a working liquid waste and environmental pollution;Vacuum, the invasion of the external gas in the semiconductor industry: pure health diet, medicine to ensure that the media.The permanent magnet drive technology found place in these areas.British Howard machinery development co., LTD. (HMD) from 1946 has been working on the seal of pump manufacturing, 37 countries around the world has been selling nearly 70000 units, annual sales of 28 million pounds.America has hundreds of a pharmaceutical factory is equipped with mechanical seal of centrifugal pump, processing all kinds of acids, these pumps due to design problems often dry running, can only use 2 ~ 3 months to break, switch to the ansimag k1516 series of magnetic drive pumps, in operation since 1993 (operation of 4.8 hours a day, 365 days a year) to 1998 is still in operation.The Midwest container plate factory, synthesis of caustic soda is a big problem of rotary vane pump seal, the engineer said the pump is “the dark days of maintenance” installed ansimag etfe lining without company seal, magnetic pump running 11 months without downtime.America a large chemical plant is facing serious difficulties of methanol.By methanol flammable, 60 ℃ near boiling, flow only 7 m3 / h, differential pressure as high as 250 m.Solve the problem by dickow magnetic multistage transmission side suction pump, its flow is 15 m3 / h, differential pressure of 400 m, methanol ensures zero leakage, ensure the safety of operators and factory and resolves the problem of transport methanol containing bubbles.

2:on the technical performance to the tiny magnetic pump, large-scale development
In order to meet market needs both at home and abroad, complete sets of equipment to the large-scale development, petroleum and chemical company in China must have a batch of annual output of thousand tons refinery, megaton ethylene plant.Machinery and equipment to meet the heavy load, long cycle, low energy consumption, and meet the environmental requirements.Found in the imitation of foreign products in China, the manufacturing material and process requirements of magnetic pump is high.Even the small and medium-sized power of the 11 ~ 13 kw pump, the reliability of manufacturing cost also can’t let user acceptance.For strong corrosion resistance, high pressure, high temperature of high power pump is still blank.At present, the development of the magnetic pump limit should be described by HMD products: flow from 1 m3 / h to 681 m3 / h, differential pressure by 10 m to 500 m, the temperature range from 100 ℃ to 100 ℃, the system pressure from vacuum to 400 bar, the engine power of 350 kw.Micro pump is dedicated to research and development, some sectors such as laser cooling, analysis instrument for supplementary material, chemical agent, biological engineering, cooling cycle, so that the printer nozzle, etc.Gear pump and motor integrated closed connection, it is suitable for 24 v, 36 v dc power, speed of artificial automatic control.Minimum flow for 10 ml/min, the differential 7 bar.Japan iwaki company for electroplating, cooling cycle with the md series miniature magnetic transmission gear pump flow range is 7.5 ~ 288 l/min, the transmission power 1/25 ~ 1/3 horsepower.

3:various types of pumps can be adapted for magnetic drive pumps
Centrifugal pump is the leading products of magnetic pump, magnetic drive rotary displacement pump has a history of 25 years, nearly 78 only in the aspect of design and manufacturing level and high torque capacity is the basis of widely.With a focus on the magnetic transmission gear pump and screw pump, the maximum transmission capacity of 400 nm, rotating speed of 3500 r/min when the power is 150 kw.Is located in the United States border in Utah gas power plant, turbine compressor lubrication pump is normal external gear pump.Oil pump for high pressure difference on average every two months and excessive wear and scrap, cause the compressor shut down.After using magnetic drive three screw pump in 1992, has been continuous operation, without any maintenance.British tuthill has been successfully used in the magnetic drive pump for pumping water system in the process of the Scottish company additives, the pump replaced the screw pump, conform to the hygiene safety regulations.

4:magnetic transmission compressor
Magnetic transmission within the bearing in the sealed space, it USES sealed lubrication and cooling medium.In view of the materials in our country, magnetic transmission has not been applied in the gas conveying machinery.Nova magnetic co., LTD., production of overpressure fan, in 170 bar helium pressure, leakage rate small 1 cubic cm/h, more than 10000 h bearing life.Another set of pressurized air blower, the free discharge flow rate of 750 m3 / h, 400 m3 / h flow when the system pressure differential 35 mpa, zero leakage.In addition, the special performance of magnetic transmission is also applied in the mixer, valves and other equipment without leakage.Application in the refrigerator haven’t got the information, the author in order to realize the magnetic transmission is applied to refrigeration compressor are exploring work, because of the refrigerant especially freon leak can cause serious environmental problems.