Analysis: High temperature magnetic pump in the extreme high temperature can maintain the magnetic?

High-temperature magnetic pump in the market has long been nothing new topic, and recently on the "high-temperature magnetic pump can not lose magnetic in the extreme temperature," this issue has a heated discussion. High temperature magnetic pump is widely used in oil refining, petrochemical and chemical industries and other special transportation of oil, printing and dyeing raw materials and other high temperature medium conditions, the medium temperature should not exceed 350 degrees Celsius, over-temperature conditions will affect the pump operating efficiency. According to experts pointed out that in the extreme high temperature magnetic pump will disappear, this also remind the majority of enterprises in the use of high temperature magnetic pump should pay attention to the conditions of the medium. Magnetic pump (picture from the network) High temperature magnetic pump should be run at the specified temperature, non-temperature medium is strictly prohibited. A platinum resistance temperature sensor can be installed on the outer surface of the magnetic pump isolation sleeve to detect the temperature rise in the annulus area so as to alarm or stop when the temperature exceeds the limit. High temperature magnetic pump in use should be less than 40 ℃ ambient temperature, the motor temperature should not exceed 75 ℃. High-temperature magnetic pump operation, you must use a small amount of liquid on the inner rotor and the isolation sleeve between the annular gap region and the sliding friction bearing pair was washed and cooled. Coolant flow is typically 2% to 3% of the pump design flow, and the annulus area between the inner magnet rotor and the isolation sleeve generates high heat due to eddy currents. When the cooling fluid is not enough or flushing hole poor, blocked, it will lead to the medium temperature is higher than the permanent magnet operating temperature, the magnetic rotor gradually lost magnetism, the magnetic actuator failure. When the medium is water or water-based liquid, the annulus area can be maintained at 3-5 ℃. When the medium is hydrocarbon or oil, the annulus area can be maintained at 5-8 ℃. This article is copyrighted industry interconnect (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor: Yue Lijuan (QQ / micro letter:) starting: http: //dj.liuti .cn / (Service Hotline:)