Submersible sewage slurry pump of fixed and mobile<2>
2, swirl impeller: the type of the slurry pump impeller, the impeller as a result of partial or total reduction from the pressurized water chamber flow. So the non blocking performance, over capacity and long fiber particles by ability. Push the eddy current indoor particles in pressurized water flows generated by the rotating impeller under movement, suspended particles themselves do not produce energy, but the liquid flow and exchange of energy. In the flow process, the suspended particles or long fibers do not contact with the leaves, leaf blade wear with light, there is no space because of increased erosion and, in the long-term operation will not cause a serious decline in efficiency, the use of the impeller type slurry pump for slurry pumping large particles and long fibers containing medium. From the performance perspective, the lower impeller efficiency, equivalent to only about 70% of normal closed impeller, a relatively flat head curve.
3, closed impeller: the normal type of impeller efficiency. And the situation in the long-term stable operation, use the type of impeller axial force is small, and can be set up before and after the vice leaf cover. Former deputy leaves on the cover can reduce the imports of the vortex impeller losses and the wear particles on the sealing ring. Deputy leaves on the cover not only the role of axial force balance, but also to prevent the suspension of particles into the cavity of the mechanical seal mechanical seal protection. But the poor non blocking, easy to wound the type of impeller, not in slurry pumping with large particles (long fiber) end after the sewage medium.
4, flow impeller: the impeller blades of the impeller is free, the impeller is an import to export from a bending of the flow channel. Therefore suitable for slurry pumping large particles and long fibers containing medium. Good anti blocking. From the performance perspective, the type of impeller efficiency and the general closed impeller differs not quite, but the type of impeller slurry pump head curve is more steep drop. Power curve is relatively stable, not easy to have a super power, but this type of impeller cavitation performance than ordinary closed impeller, especially suitable for use in the slurry pump pressure on imports.
Post time: Jul-13-2021