Magnetic pump principle of work and precautions

With the construction of petrochemical plant projects around our country, the demand for high-temperature magnetic pumps is more and more prosperous, and will continue to maintain the growth trend in 2012. Below, small series to introduce the working principle of magnetic pump and the use of precautions. Magnetic pump by the pump, magnetic actuator, the motor consists of three parts. The key components of the magnetic actuator from the outer magnet, the inner magnet and non-magnetic barrier composition. Pump material mainly stainless steel magnetic pump and fluorine plastic magnetic pump. When the motor femoral external magnetic rotor rotation, the magnetic field can penetrate the air gap and non-magnetic material, femoral and impeller connected to the internal magnetic rotor for synchronous rotation, the completion of the power of the touchless transfer, and then pumping liquid. Because the pump shaft, the inner rotor is completely closed by the pump body, the barrier sleeve, the dynamic seal into a static seal, and then completely solve the "run, run, drip, drain" question, eliminating the refining chemical industry flammable, explosive, Toxic and harmful media leakage through the pump security risks, effectively ensuring the physical and mental health of employees and safe production. Magnetic pump usage precautions 1. Prevent particles from entering the magnetic pump (1) Do not allow ferromagnetic impurities, particles into the magnetic clutch and bearing friction. (2) After conveying the easily crystallized or precipitated medium, it should be rinsed promptly (after the pump is stopped, pour water into the pump chamber and discharge clean after running 1min) to ensure the service life of the sliding bearing. (3) When transporting media containing solid particles, filter at the inlet of the pump tube. 2. Prevent the magnetic pump from demagnetization (1) Magnetic moment can not be designed too small. (2) It should be run under the specified temperature, the medium temperature is strictly not allowed. 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. 3. Prevent magnetic pump dry friction (1) Do not idle. (2) It is forbidden to use the medium to empty. (3) in the case of the outlet valve is closed, the magnetic pump continuous operation time shall not exceed 2min, to prevent the magnetic actuator overheating and failure. In fact, no matter what material manufacturing magnetic pump, there are advantages and disadvantages; magnetic pump according to the material can be divided into stainless steel magnetic pump and fluorine plastic magnetic pump. Magnetic pump is a branch of the field of pumps, magnetic pump is a permanent magnet coupling principle of work applied to centrifugal pump new products. Pump manufacturers should be closely related to market demand, high temperature magnetic pumps, the introduction of advanced technology, improve manufacturing processes, increase production of high temperature magnetic pump investment, and actively participate in China's booming petrochemical project construction.

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