Fields of application of magnetic drive couplings

Application field

One of the successful applications of magnetic drive couplings is its combination with pumps - magnetic pumps. In the past, it was used as a precious special product when it had to be used, but now it has a wide range of applications. Most of the liquids in petrochemical, pharmaceutical, film, electroplating, nuclear power and other industries are corrosive, flammable, explosive, toxic, and expensive. Leakage will cause waste of working liquid and environmental pollution; vacuum and semiconductor industries must prevent external gas The intrusion of food, biology, and medicine must ensure the purity and hygiene of the medium. Magnetic drive couplings have found their uses in these fields, and it can be said that magnetic drive pumps are a big market for magnetic materials.

The permanent magnetic coupling is applied to the valve, the valve stem does not pass through the valve cover, and the stuffing box is omitted, so it is called a fully enclosed non-filling permanent magnetic transmission valve. Since the valve has no stuffing box, it can run safely and reliably for a long time; there is no frictional moment between the valve stem and the packing, and the rotation is labor-saving; negative pressure operation does not allow external gas to enter. All industrial valves such as globe valves, gate valves, ball valves, and butterfly valves can be transformed into fully enclosed valves. The reaction kettle is a kind of mixed reaction equipment widely used in chemical plants. The stirring of the liquid is often carried out under pressure. The reactants have a certain temperature, corrosiveness and volatility. Therefore, the sealing of the rotating shaft has become an important issue in the reaction kettle. The reaction equipment with agitator uses magnetic drive, in addition to achieving absolute sealing, it can also avoid the oxidation and condensation of the medium.

Development Overview

With the development of magnetic materials and the emergence of new magnetic materials, the torque transmitted by the magnetic transmission coupling will become larger and smaller, and its application range will become wider and wider, except for pumps and reactors. , Valves, hydraulic cylinders and cylinders, and other occasions that need to solve the problem of dynamic seal leakage can be applied. It can be predicted that the magnetic transmission coupling will have a very broad market prospect.