English
In industries such as chemical, pharmaceutical, and petroleum that require strict sealing, traditional centrifugal pumps often pose safety hazards and environmental pollution due to the problem of leakage caused by the dynamic sealing structure. The emergence of magnetic pumps has completely solved this problem through magnetic transmission technology, becoming an innovator in the field of industrial fluid transportation.
The core of a magnetic pump lies in its magnetic actuator, which consists of an outer magnetic rotor, an inner magnetic rotor, and a non-magnetic isolation sleeve. When the electric motor drives the outer magnetic rotor to rotate, the magnetic field penetrates the air gap and drives the inner magnetic rotor to rotate synchronously, achieving non-contact transmission of power. This design converts dynamic sealing into static sealing, completely eliminating the possibility of medium leakage, especially suitable for transporting high-risk liquids such as strong acids, strong alkalis, and flammable and explosive substances. For example, in semiconductor manufacturing, magnetic pumps can safely transport high-purity chemical reagents, avoiding product contamination due to leaks; In the medical field, its leak free characteristics ensure the purity of drug delivery.
Another advantage of magnetic pumps is their compact structure and easy maintenance. Its sliding bearings are lubricated with conveying media, without the need for an independent lubrication system, reducing energy consumption and failure rates. At the same time, when overloaded, the inner magnetic rotor will slip on the ceramic shaft, forming a self-protection mechanism and extending the service life of the equipment. However, magnetic pumps have high requirements for usage conditions: it is necessary to avoid ferromagnetic impurities from entering the magnetic drive and prevent wear on the isolation sleeve; The temperature of the medium must be strictly controlled within the specified range to prevent demagnetization of the magnetic steel; It is strictly prohibited to idle or evacuate, otherwise it may cause dry friction damage to the bearing.
At present, magnetic pumps have been widely used in industries such as photovoltaics, environmental protection, and water treatment, becoming the preferred equipment for high-end fluid transportation. With the advancement of materials science, its temperature and pressure resistance performance continues to improve, and it will replace traditional pump types in more fields in the future, promoting industrial production to upgrade towards safety and environmental protection.
