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Anti-clog submersible sewage pump

A submersible sewage pump and anti-clogging technology, applied in the field of submersible sewage pumps, can solve the problems of axial clogging, burning the motor, increasing volume loss, etc., and achieve the effect of avoiding axial clogging, ensuring smooth flow, and avoiding radial clogging

Active Publication Date: 2012-05-09
HUNAN XUNDA JI TUAN YOU XIAN GONG SI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because the conveyed medium contains many kinds of sundries, the submersible sewage pump is easy to block. Usually, the axial gap between the impeller and the pump cover in the pump cavity is small, and the sundries can easily cause the axial blockage of the submersible sewage pump and increase the pump power. If the axial clearance is increased, the volume loss will be increased and the sewage discharge effect will be reduced; if the impeller of the pump is radially matched with the pump cover, sewage will accumulate in the gap after long-term work Debris blocks the pump

Method used

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  • Anti-clog submersible sewage pump
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  • Anti-clog submersible sewage pump

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings: ;, to prevent water flow and sundries from flowing in the radial gap between the impeller and the pump cover, and protect the impeller from being stuck.

[0015] Such as figure 1 As shown, an anti-blocking submersible sewage pump is equipped with an impeller 2 on the central axis of the pump body 1, and the pump cover 3 is fastened to the pump body 1 through bolts. The impeller 2 comprises an impeller seat 21, an impeller blade 22 and an impeller cover 23. The impeller blade 22 adopts a turbine structure, and the impeller cover 23 has a protruding ring 24. Rotating in the suction port of the pump cover 3, the center of the protruding ring 24 is an empty hole, which communicates with the turbine hole. A floating sleeve 4 is also installed between the protruding ring 24 and the pump cover 3, and a briquetting block 5 is fixedly installed on the pump cover 3 with...

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Abstract

The invention relates to a submersible sewage pump which comprises a pump body, an impeller and a pump cover, wherein a convex ring of the impeller extends into the pump cover. The submersible sewage pump is characterized in that a floating bushing is further mounted between the convex ring and the pump cover; a pressing block is mounted on the pump cover; an elastic element is arranged in the pressing block and used for propping against the lower end face of the floating bushing; and the upper end face of the floating bushing props against an impeller cover of the impeller. The submersible sewage pump has a simple structure. By using the pump provided by the invention, the problem that the submersible sewage pump is easily clogged by foreign bodies is solved, and the foreign bodies can be cut off and smashed, thus the normal operation of the submersible sewage pump is achieved. The submersible sewage pump can be used for the irrigation and drainage of various polluted water and waster water containing foreign bodies.

Description

technical field [0001] The invention relates to a submersible sewage pump, in particular to a submersible sewage pump which can prevent sundries from being blocked. Background technique [0002] Because the conveyed medium contains many kinds of sundries, the submersible sewage pump is easy to block. Usually, the axial gap between the impeller and the pump cover in the pump cavity is small, and the sundries can easily cause the axial blockage of the submersible sewage pump and increase the pump power. If the axial clearance is increased, the volume loss will be increased and the sewage discharge effect will be reduced; if the impeller of the pump is radially matched with the pump cover, sewage will accumulate in the gap after long-term work The debris thus blocks the pump. Contents of the invention [0003] The object of the present invention is to solve the shortcomings of the above-mentioned prior art, and provide an anti-blocking submersible pump with simple structure,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/00
Inventor 伍斌强唐卫平陈毅周科文伍奕
Owner HUNAN XUNDA JI TUAN YOU XIAN GONG SI
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