How to improve the sealing performance of submersible sewage pump
Submersible sewage pump is connected to the pump and motor, but also to dive into the water to work a pump products, the use of more and more widely from the original simple to use to transport water to the present can transport a variety of domestic sewage , Industrial wastewater, site drainage.
Submersible sewage pump submersible pump work products, in order to improve the pump seal and load capacity, extended pump life. To this end, we put the auxiliary impeller hydrodynamic seal technology applied to the submersible sewage pump.
The auxiliary impeller rotates with the pump spindle, the so-called auxiliary impeller means the impeller around the back cover in the vicinity of the impeller to install an impeller. When the pump is operating. The liquid in the auxiliary impeller will rotate together, and the rotating liquid will produce an outward centrifugal force, which, on the one hand, will withstand the liquid flowing to the mechanical seal and reduce the pressure at the mechanical seal. On the other hand to prevent the solid particles in the media into the mechanical seal of the friction pair, reducing the wear of mechanical seal grinding block and prolong its service life.
Vice impeller in addition to sealing role, can also play a role in reducing the axial force, submersible pump axial force is mainly by the role of the liquid in the impeller pressure on the pressure and the rotation of the local composition of the gravity, the two The direction of the force is the same force is the sum of the two forces. Therefore, submersible sewage pump, the bearing is easy to damage the reason is also the axial force has a great relationship.
Vice impeller if installed, the role of liquid in the vice impeller on the direction of the pressure difference is the opposite force with the above-mentioned two forces can offset a local axial force, also play a role in extending bearing life.
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