High temperature magnetic pump can keep the magnetic force at the extreme high temperature

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来源:    日期:2015-7-27    浏览次数684次

 High temperature magnetic pump used in the oil refining, petrochemical and chemical industry and other places to transport special oil, printing and dyeing raw materials and high temperature medium (t<400). There is no magnetic force at the extreme high temperature. By the material made of permanent magnet operating temperature range (-45-400 DEG C), high coercive force, magnetic field direction with good anisotropy. In homopolar is close to also won't occur the demagnetization phenomenon, is a good source of magnetic field.

In the operation of high temperature magnetic pump, a small amount of liquid must be used to flush the gap between the inner magnetic rotor and the spacer sleeve. Coolant flow is usually designed for the 2%-3% of the pump design flow, and the gap between the inner magnetic rotor and the spacer sleeve is generated by the eddy current and high heat. When the coolant is not enough or flushing hole jam, jam, will lead to the medium temperature is higher than the operating temperature of the permanent magnet, the inner magnetic rotor gradually loses its magnetism, magnetic actuator failure. When the medium is water or water - based liquid, the temperature of the ring can be maintained at 3-5.
High temperature magnetic pump should be in the specified temperature conditions, the media is strictly prohibited. Can be isolated from the magnetic pump set on the external surface of the platinum resistance temperature sensor to detect the temperature rise of the ring region, so that the temperature of the alarm or stop. High temperature magnetic pump in the use of the environment temperature should be less than 40, the motor temperature rise should not exceed 75.
Market application of CQG type high temperature magnetic pump and CQB-G type high temperature magnetic pump as the main representative. High temperature magnetic pump are widely used in petroleum refining, petrochemical and chemical industries, and other local delivery special oil, raw materials such as dyeing medium high temperature conditions. Medium temperature should not exceed 350 degrees Celsius, over temperature conditions will affect the operating efficiency of the pump.