Sewage pump

Abstract

The invention belongs to the technical field of sewage pumps, and discloses a sewage pump. The sewage pump comprises a water pump and a crushing unit. The crushing unit is located at a water pump inlet of the water pump and used for conducting impurity crushing treatment on media flowing to the water pump inlet. The crushing unit comprises a crushing pipeline, a crushing roller and a driver. The inlet end of the crushing pipeline communicates with a to-be-conveyed medium, and the outlet end of the crushing pipeline communicates with an inlet of the water pump. The crushing roller is connected with the driver and located in the crushing pipeline, and the driver can drive the crushing roller to rotate in the crushing pipeline. Crushing blades are arranged on the outer surfaces of the crushing roller, and the ends of the crushing blades are in clearance fit with the inner wall of the crushing pipeline, so that a channel for media to penetrate through the crushing roller to flow to the downstream is formed. According to the sewage pump, impurities in sewage flowing to the water pump can be physically crushed, so that the granularity of the impurities is reduced, protection of the sewage pump is improved, and the sewage pumping efficiency of the whole sewage pump is improved.

Description

Technical field [0001] The present invention belongs to the technical field of sewage pump, and more particularly to a sewage pump. Background technique [0002] The sewage pump is one of the centrifugal impurity pump, with a variety of forms, such as submersible and dry, which are mainly used to transport urban sewage or medium containing solid particles such as fibers, paper brown. [0003] During the actual operation of the existing sewage pump, the following problem often appears: Due to the process of directly extracting the sewage, due to the existing sewage pumps, there is a large amount of large volume of impurities in the sewage, it is not only easy to cause the sewage pump extraction. In the process, a blockage occurs, and some of the fiber impurities present in the sewage also forms a winding of the blade of the sewage pump, causing the sewage pump to continue working properly. The above situation causes a large damage to the sewage pump and the motor, affecting its se...

AI Technical Summary

Problems solved by technology

[0003] In the actual operation process of the existing sewage pump for pumping sewage, the following problems often occur: due to the fact that the existing sewage pump directly extracts sewage, due to the presence of a large number of large impurities in the sewage, it is not only easy to cause the sewage pump to pump Blockage occurs during the process, and some fiber impurities in the sewage will also entangle the blades of the sewage pump, causing the sewage pump to fail to continue to work normally

The above situation will cause great damage to the sewage pump and the motor, affecting its service life, and thus requires very frequent and cumbersome dredging operations on the sewage pump, thereby reducing the overall sewage pumping efficiency

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