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Whole lift range decontamination anti-blocking sewage pump

A sewage pump and sewage cleaning technology, which is applied in the direction of pumps, pump devices, pump components, etc., can solve the problems of easy blockage of sewage pumps, and achieve the effect of not easily blocking the flow channel, increasing the flow rate, and reducing resistance

Active Publication Date: 2018-09-07
解树超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a sewage pump for cleaning and preventing clogging in the whole head range, which not only has good efficacy in a larger head range, but also can further solve the problem that the sewage pump is easy to block

Method used

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  • Whole lift range decontamination anti-blocking sewage pump
  • Whole lift range decontamination anti-blocking sewage pump
  • Whole lift range decontamination anti-blocking sewage pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as figure 1 , figure 2 As shown, a sewage pump for cleaning and preventing clogging within the full head range disclosed in this embodiment includes a motor body 1, two volutes 2, an impeller 3 arranged inside each volute 2 and an impeller 3 arranged inside the two volutes. The guide housing 4 between the shells 2. The volute 2 comprises a volute front wall 24, a volute rear wall and two ends connected to the volute side walls at the opposite sides of the volute front wall 24 and the volute rear wall respectively. The volute front wall 24 is provided with The water inlet 21 of the volute is provided with a cutting knife at the water inlet 21 of the volute, and the cutting knife is a swivel knife 9 in this embodiment. The side wall of the volute 2 is provided with a water cutout 22, and the cover above the water cutout 22 is provided with a water collecting shell 23, and the side wall of the water collecting shell 23 is provided with a volute water outlet 231, an...

Embodiment 2

[0070] Such as Figure 11a , 11b As shown, this embodiment provides another kind of sewage pump with a full lift range, its structure is basically the same as that of Embodiment 1, and only the different parts will be described below.

[0071] In this embodiment, there are two blades 32 in the impeller 3, and two flow passages are arranged in an annular array with the center of the impeller 3 as the base point. Take the center of the impeller as the center, and make a circle with the center of the impeller to the water inlet point at the head of the blade 32 as the radius, so that the water inlet points of the two blades all fall on the circumference, and the diameter a of the water inlet port of each flow channel is The distance between the water inlet points of two blades 32 . The water outlet port diameter b of each flow channel refers to the shortest distance from the water outlet point of each blade 32 to the water-facing surface of the blade opposite to the water outle...

Embodiment 3

[0073] Such as Figure 12a , 12b As shown, this embodiment provides another kind of sewage pump with a full lift range, its structure is basically the same as that of Embodiment 1, and only the different parts will be described below.

[0074] In this embodiment, there are three blades 32 in the impeller 3, and three flow channels are arranged in an annular array with the center of the impeller 3 as the base point. Take the center of the impeller as the center, and make a circle with the radius from the center of the impeller to the water inlet point of the blade 32, so that the water inlet points of the three blades all fall on the circumference, and the diameter a of the water inlet port of each flow channel is constitutes the distance between the water inlet points of two adjacent blades 32 . The water outlet diameter of each flow channel refers to the shortest distance from the water outlet point of each blade 32 to the water-facing surface of the blade opposite to the w...

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Abstract

The invention discloses a whole lift range decontamination anti-blocking sewage pump. The sewage pump comprises a motor body, at least one volute and an impeller arranged in each volute. At least oneblade is arranged in each impeller. A flow channel is formed between the upstream face of each blade and the opposite downstream face of the blade. The aperture of the water inlet end of each flow channel is greater than that of the water outlet end of the flow channel. Each flow channel is divided into a vacuum area, an energy storage area and a pressure relief area. The water outlet included angle of each energy storage area is greater than the water outlet included angle of each vacuum area, and existence of a large energy storage space can be guaranteed. As the aperture of the water inletend of each flow channel is greater than that of the water outlet end of the flow channel and the large energy storage areas exist, existence of the large energy storage areas is guaranteed under thecondition of limiting the flow of water outlets of the impellers, and enough high-pressure water rushes out of water outlets of the volutes at high speed, so that the sewage pump has good effects in spite of high-lift operation or low-lift operation.

Description

technical field [0001] The invention relates to the technical field of sewage pumps, in particular to a sewage pump for cleaning and preventing clogging within the full lift range. Background technique [0002] Sewage pump is a kind of centrifugal impurity pump, which is mainly used to transport urban sewage, excrement or other liquids containing paper scraps, stones, metal wires and other impurities. It makes the sewage pump easy to block, and the blockage will cause the pump to not work normally, or even burn the motor, resulting in poor sewage discharge, which will have a serious impact on urban life and environmental protection. The advantages and disadvantages of sewage pumps are mainly measured from two aspects: anti-blocking performance and full head performance. Anti-clogging performance. Due to the increasing solid matter and fiber content in urban sewage and the increase in sewage treatment costs, enhancing the anti-clogging performance of sewage pumps and improvi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D7/04F04D29/42F04D29/22B26D1/03
CPCF04D7/045F04D13/06F04D29/2288F04D29/426B26D1/03
Inventor 解树超解宇
Owner 解树超