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Impeller of externally mixed type self-priming pump

A self-priming pump and impeller technology, applied in the field of external mixing self-priming pump impeller, can solve the problems of poor gas-liquid mixing, slow water supply speed, and long gas discharge time, and achieve large contact area, fast water supply speed, and discharge short time effect

Inactive Publication Date: 2011-04-20
山东壮发泵业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the invention is to solve the problems of small contact area between the blade and the liquid, poor agitation in the pump body, poor gas-liquid mixing, long gas discharge time, and slow water filling speed when the pump is initially working, and provides a blade and liquid The contact area is large, and when the pump is initially working, the pump body has strong agitation, good gas-liquid mixing, short gas discharge time, and fast water supply. The impeller of the external mixing self-priming pump

Method used

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  • Impeller of externally mixed type self-priming pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Such as figure 1 , figure 2 The external mixing self-priming pump impeller shown has a front cover 1 and a rear cover 2 on the impeller, a blade 3 is provided between the front cover 1 and the rear cover 2, and an annular cutout is provided on the outer diameter of the cover. It can be seen from the figure that the outer diameter of the front cover plate 1 is provided with an annular cut-off zone, the blades at the annular cut-off zone are not covered by the cover plate, the blades are exposed, and the contact area between the blades and the liquid is large. Strong agitation, good gas-liquid mixing, short gas discharge time, and fast water filling.

Embodiment 2

[0015] Such as image 3 , Figure 4 In the shown external mixing self-priming pump impeller, the outer diameter of the cover plate is provided with an annular cutout zone, and it can be seen from the figure that the outer diameter of the rear cover plate 2 is provided with an annular cutout zone. Other structures are the same as those in Embodiment 1, and will not be repeated here.

Embodiment 3

[0017] Such as Figure 5 , figure 2 , Figure 4 In the shown external mixing self-priming pump impeller, the outer diameter of the cover plate is provided with an annular cut-off zone, and it can be seen from the figure that the outer diameter of the front cover plate 1 and the rear cover plate 2 are respectively provided with an annular cut-off zone. Other structures are the same as those in Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses an impeller of an externally mixed type self-priming pump, relating to pumps. A front cover plate and a rear cover plate are arranged on the impeller, blades are arranged between the front cover plate and the rear cover plate, and annularly cut belts are arranged on the external diameters of the cover plates. As the annularly cut belts are arranged on the external diameters of the cover plates, the blades at the parts of the annularly cut belts are not covered by the cover plates, the blades are exposed, and the contact area of the blades with liquid is large. When the pump starts to work, gas and liquid are well mixed by strong agitation force in the pump, gas discharge time is short, and water is quickly pumped. The impeller is suitable for externally mixed type self-priming pumps.

Description

technical field [0001] The invention relates to pumps, in particular to an external mixing type self-priming pump impeller. Background technique [0002] We know that the existing external mixing type self-priming pump impeller is provided with a front cover and a rear cover on the impeller, a blade is arranged between the front cover and the rear cover, and the front cover, the rear cover and the blade of the same diameter. The impeller of this external mixing self-priming pump has the same diameter as the front cover, the rear cover and the blades, and the contact area between the blades and the liquid is small. When the pump is initially working, the agitation in the pump body is poor, the gas-liquid mixing is poor, and the gas discharge time is short. Long, and the water speed is slow. Contents of the invention [0003] The technical problem solved by the invention is to solve the problems of small contact area between the blade and the liquid, poor agitation in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/22F04D9/02
Inventor 崔军波
Owner 山东壮发泵业股份有限公司
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