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Hydraulic structure of side runner pump body

A hydraulic structure and side channel technology, which is applied to parts, pumps, and pump elements of elastic fluid pumping devices, can solve the problem of reducing the pumping flow and head of the pump body in the side channel, hindering the flow of the medium, Increase medium flow loss and other issues to achieve the effect of reducing medium flow loss, increasing pumping flow and head, and reducing radial vortex

Pending Publication Date: 2020-02-04
SICHUAN ZIGONG IND PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The side channel of the traditional side channel pump body is generally arc-shaped, and the collision of the fluid medium between the arc-shaped side channel and the side channel wall is likely to generate radial vortices, which increases the flow loss of the medium and hinders the medium flow, reducing the pumping flow and head of the side channel pump body

Method used

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  • Hydraulic structure of side runner pump body
  • Hydraulic structure of side runner pump body
  • Hydraulic structure of side runner pump body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 and figure 2 As shown, a hydraulic structure of a side channel 1 pump body includes a side channel 1, the side channel 1 is a spiral structure, the inlet 2 of the side channel 1 is oval, and the outlet 3 is a circle Shape, set the distances from the center of the inlet 2, the center of the outlet 3 to the spiral center of the side channel 1 as R1 and R2 respectively, where 2 / 5≤R1 / R2≤3 / 5 ; Set the angle between the center of the inlet 2 to the center of the spiral and the straight line from the center of the outlet 3 to the center of the spiral to be α, wherein, 30°≤α≤45°; the outlet 3 is connected There is a section of straight channel 4 , which is tangent to the circle where the side flow channel 1 is helically located and the joint between the outflow port 3 and the straight channel 4 .

[0030] The flow measuring channel can be any one of the single-side flow channel 1 or the double-side flow channel 1 .

[0031] The working principle of the pres...

Embodiment 2

[0033] Such as Figure 4 and Figure 6 As shown, Embodiment 2 is improved on the basis of Embodiment 1. An impeller 5 is arranged in the side channel 1, and straight blades 6 are arranged on the impeller 5. The number of the blades 6 is 20-40 tablets.

[0034] The working principle of the present invention is: because the side channel 1 pump belongs to the pump with small flow rate and high head, more and denser blades 6 can allow the medium to obtain more sufficient kinetic energy in the impeller 5, and the number of blades 6 is the same as that of the impeller 5 diameter is positively correlated.

Embodiment 3

[0036] Such as image 3 and Figure 4 As shown, Embodiment 3 is improved on the basis of Embodiment 2. The length of the blade 6 is set to L, and the radius of the impeller 5 is set to R, wherein, 2 / 5≤L / R≤2 / 3.

[0037] The working principle of the present invention is: the impeller 5 is more suitable for conveying the medium in a liquid state. Under the condition that the radius of the impeller 5 does not change, the greater the ratio of the length of the blade 6 to the radius of the impeller 5, the longer the blade 6, the longer The blades 6 can exert sufficient centrifugal force on the liquid medium during high-speed rotation, so that the liquid medium can obtain greater kinetic energy and improve the efficiency of pumping the medium by the pump body.

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Abstract

The invention discloses a hydraulic structure of a side runner pump body. The structure comprises a side runner, wherein the side runner is of a spiral structure, an inflow port of the side runner isoval-shaped, an outflow port of the side runner is circular, the distance from the circle center of the inflow port to the spiral center of the side runner and the distance from the circle center of the outflow port to the spiral center of the side runner are set to be R1 and R2 respectively, the R1 / R2 is larger than or equal to 2 / 5 and less than or equal to 3 / 5, the included angle between the straight line passing from the circle center of the inflow port to the spiral center and the straight line passing from the circle center of the outflow port to the spiral center is set to be alpha, thealpha is larger than or equal to 30 degrees and less than or equal to 45 degrees, the outflow port is connected with a section of a straight runner, and the straight runner and the circle where the side runner spiral is located are tangent to the connection of the outflow port and the straight runner. The structure has the advantages of reducing radial whirl generation, reducing medium flow loss and increasing pumping flow and lift of the side runner pump body.

Description

technical field [0001] The invention relates to the technical field of fluid machinery, in particular to a hydraulic structure of a side channel pump body. Background technique [0002] The side channel pump is a radial vane pump between the centrifugal pump and the positive displacement pump. It has the characteristics of small flow rate and high head. Mixed cleaning media, etc. The side channel of the traditional side channel pump body is generally arc-shaped, and the collision of the fluid medium between the arc-shaped side channel and the side channel wall is likely to generate radial vortices, which increases the flow loss of the medium and hinders the The flow of the medium reduces the pumping flow and head of the side channel pump body. Contents of the invention [0003] In order to solve the above problems, the present invention provides a hydraulic structure of the side channel pump body, which has the advantages of reducing radial vortex generation, reducing me...

Claims

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Application Information

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IPC IPC(8): F04D29/42F04D29/22F04D29/24F04D29/66
CPCF04D29/2222F04D29/242F04D29/426F04D29/669
Inventor 曹永尚勇
Owner SICHUAN ZIGONG IND PUMP
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