Magnetic pumps, also called magnetic driving pumps, are mainly composed of pump heads, magnetic actuators, motors and linking baseboards. Magnetic actuators consist of external magnetic rotators, inner magnetic rotators and non-magnetic isolation sets.
Brief Introduction
Magnetic driving pumps, short for magnetic pumps, are new products that using the working theory of permanent magnetic couplings . With reasonable design and advanced techniques, magnetic pumps are fully sealed and corrosion-resistant, without leakage. When motor drives external rotators to rotate, magnetic field penetrates into air gaps and non-magnetic materials as well as drives inner magnetic rotator to rotate synchronously. This realizes non-contact transmission of power and changes dynamic sealing into static one, which eliminates the potential security problems of inflammable, explosive, toxic and harmful materials leaking through pump seals. China permanent magnet pumps are a branch of water pumps, which mainly applied to computer water cooling systems, solar powered fountains, desk fountains, artworks, coffee machines, water dispensers, water toothpicks, water heaters, hot-water circulation, swimming pool water filters, surfing massage bathtubs, automobile cooling circulation systems, oilers, humidifiers, medical apparatus and instruments, cooling systems and sanitary products.
Working Theory
Permanent magnets of brushless directory magnetic driving pumps and impellers form a rotator, in which there is a shaft sleeve molded by injecting. Through high-performance ferrite shaft, it is fixed in the shell. Between stators and rotators, there is a film needing no traditional mechanical shaft seals, so the magnetic pumps are fully sealed. Twisting force of motors, through coils of stators with power on, drives permanent magnetic rotators to rotate. Without outside force, magnetic poles repel each other and magnetic force will be back to lowest magnetism. Therefore, magnets produce motions, which drive magnetic rotators to rotate.
Through electrical reversing, brushless direct current magnetic pumps do not need carbon brushes. There are multi-poles in magnetic rotators and silicon stators. When magnetic rotators rotate in a certain angle, direction of magnetic field will change, which make rotators keep repelling the same poles. In this way, brushless DC magnetic separated pumps have high rotating speeds and efficient.
Stators of magnetic pump are totally separated from rotators, avoiding leaking problems of traditional brushless DC water pumps. It can used in water for it is water-proof, which effectively lengthens service life and improve performance of magnetic pumps.
China Rare Earth Magnet Limited
Tags: Magnetic Pump, Permanent Magnet, China Magnet
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