CN104564796A - Improved pump impeller structure - Google Patents
Improved pump impeller structure Download PDFInfo
- Publication number
- CN104564796A CN104564796A CN201410813064.3A CN201410813064A CN104564796A CN 104564796 A CN104564796 A CN 104564796A CN 201410813064 A CN201410813064 A CN 201410813064A CN 104564796 A CN104564796 A CN 104564796A
- Authority
- CN
- China
- Prior art keywords
- impeller
- blade
- blades
- pump
- cover plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
Abstract
The invention discloses an improved pump impeller structure. The improved pump impeller structure comprises a rear cover plate and blades which are arranged on the rear cover plate; a front cover plate is arranged at the upper parts of the blades, and partially covers an impeller formed by the blades; the blades which extend to the direction of the axis of the impeller are arranged at an inlet part of a material conveying channel which is formed by combining the rear cover plate, the blades and the front cover plate, so that the part, which covers the impeller, of the front cover plate is closed; the inlet part of the material conveying channel is semi-closed because the blades which extend to the direction of the axis of the impeller are arranged; the outlet part of a material output channel is arranged along the periphery of the impeller; the blades are in a streamline and continuous curved surface design; when a feeding material is insufficient, the foam can be reduced remarkably; when the feeding material is sufficient, a pump fluid and a pump material which are fed into a feeding part can be fully screwed and stirred to enter the impeller, and are thrown out to the outlet part of the material output channel of the impeller through the action of centrifugal force; the conveying efficiency of the pump fluid and the pump material when the impeller works is remarkably improved.
Description
Technical field
The present invention relates to a kind of centrifugal pump impeller, specifically referring to a kind of impeller of slag slurry pump under liquid of foamed slag stock pump and conveying solidliquid mixture for carrying solid-liquid-gas mixture.
Background technique
The geometrical shape of existing centrifugal pump impeller has three kinds; comprise unshrouded impeller; half-opened impeller and double shrouded wheel (see " modern pump design handbook " P12---Guan Xingfan work) Pulp pump field mainly uses half-opened impeller and double shrouded wheel; described half-opened impeller comprises back shroud and is arranged on the blade on back shroud, forms the material conveying passage that top is open shape, bottom is enclosed shape after back shroud and blade combination; This half-opened impeller, its advantage still can normally work when supplied materials is not enough, but its working efficiency is low; Double shrouded wheel comprises forward and backward cover plate and is arranged on the blade composition between forward and backward cover plate, and it forms the material conveying passage of enclosed shape; This double shrouded wheel, its advantage is that efficiency is higher, but cisco unity malfunction when supplied materials is not enough; A kind of single shrouded wheel of the present inventor's research and development, comprise back shroud and be arranged on the blade on back shroud, described blade top is provided with front shroud, the impeller that described front shroud part overlaid is firmly made up of blade, it is the material conveying passage that enclosed shape top is semiclosed shape that back shroud, blade, front shroud three combine rear formation bottom; This pump can possess unshrouded impeller and half-opened impeller feature, when supplied materials is not enough, still normally can works, possess again the advantage that double shrouded wheel efficiency is high; However, this single shrouded wheel, because of the combination of back shroud, blade, front shroud three, is still subject to the restriction of the shape that it is jointly formed, and the working efficiency of this pump still needs to be improved the shape of impeller and improved and improve.
Summary of the invention
Namely object of the present invention is on the basis of improving pump class single shrouded wheel, and the pump impeller structure of a kind of improvement provided.
Technological scheme of the present invention is achieved in that
A kind of pump impeller structure of improvement is provided, comprise back shroud and be arranged on the blade on back shroud, described blade top is provided with front shroud, the impeller that described front shroud part overlaid is lived blade and formed, it is characterized in that: described back shroud, blade, the blade extended and stretch out in the inlet part that front shroud three combines the material conveying passage of the rear formation direction be provided with to impeller axle center, the part being covered in impeller by front shroud is made to be enclosed shape, the inlet part of described material conveying passage extends to impeller axis direction and the blade that stretches out and be semiclosed shape because being provided with, the exit portion of material output channel is arranged along the periphery of impeller.
The pump impeller structure of described improvement, the blade that the inlet part combining the material conveying passage of rear formation due to its back shroud, blade, front shroud three extends to impeller axis direction as seen and stretches out, make the part being covered in impeller by front shroud be enclosed shape, the inlet part of described material conveying passage extends to impeller axis direction and the blade that stretches out and be semiclosed shape because being provided with; What the present invention proposes the blade forming impeller specifically arranges shape, to make it better to combine with back shroud and front shroud, reaches the object significantly improving working efficiency; Blade is extended by impeller axis direction and meets the rule of fluid motion, and this blade cleanliness and continuity ground curved surface arrange and carry out dreg slurry pump perfect structure, make it when supplied materials is not enough, still normally can work, have wide market prospects.
Accompanying drawing explanation
Fig. 1 is the structural drawing of an embodiment of the present invention.
Fig. 2 is the structural drawing after Fig. 1 converts visual angle.
Fig. 3 is the structural drawing after Fig. 2 omits front shroud and back shroud.
Embodiment
Below in conjunction with accompanying drawing 1 to accompanying drawing 3, embodiments of the invention are described; But be not limited to the present embodiment:
A kind of pump impeller structure of improvement is provided, the blade 3 comprising back shroud 2 and be arranged on back shroud 2, described blade 3 top is provided with front shroud 4, the impeller 1 that described front shroud 4 part overlaid is lived blade 3 and formed, it is characterized in that: described back shroud 2, blade 3, the blade 3 extended and stretch out in the inlet part 6 that front shroud 4 three combines the material conveying passage of the rear formation direction be provided with to impeller axle center 7, the part being covered in impeller 1 by front shroud 4 is made to be enclosed shape, the inlet part 6 of described material conveying passage extends to direction, impeller axle center 7 and the blade 3 that stretches out and be semiclosed shape because being provided with, the exit portion 5 of material output channel is arranged along the periphery of impeller 1.
Above structure is due to blade 3 with adopting cleanliness and continuity curved design, when supplied materials is not enough, significantly can reduce the generation of foam, when supplied materials is abundant, make pump liquid and the stock of feeding feeding part, can be threaded into fully and stir and enter in impeller 1, and be dished out to the exit portion 5 of the material output channel of impeller 1 by the effect of centrifugal force, significantly improve the transfer efficiency to pump liquid and stock when this impeller 1 works.
Although shown detailed embodiment of the present invention above, those skilled in the art without prejudice under prerequisite of the present invention, can carry out part modifications and changes; The content mentioned in description above and accompanying drawing only illustratively illustration, and not limitation of the present invention, have the pump impeller structure of the improvement of above-mentioned technical characteristics, all fall into this patent protection domain.
Claims (1)
1. the pump impeller structure of an improvement, comprise back shroud and be arranged on the blade on back shroud, described blade top is provided with front shroud, the impeller that described front shroud part overlaid is lived blade and formed, it is characterized in that: described back shroud, blade, the blade extended and stretch out in the inlet part that front shroud three combines the material conveying passage of the rear formation direction be provided with to impeller axle center, the part being covered in impeller by front shroud is made to be enclosed shape, the inlet part of described material conveying passage extends to impeller axis direction and the blade that stretches out and be semiclosed shape because being provided with, the exit portion of material output channel is arranged along the periphery of impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410813064.3A CN104564796A (en) | 2014-12-24 | 2014-12-24 | Improved pump impeller structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410813064.3A CN104564796A (en) | 2014-12-24 | 2014-12-24 | Improved pump impeller structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564796A true CN104564796A (en) | 2015-04-29 |
Family
ID=53081645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410813064.3A Pending CN104564796A (en) | 2014-12-24 | 2014-12-24 | Improved pump impeller structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087207A (en) * | 2020-08-24 | 2022-02-25 | 浙江三花商用制冷有限公司 | Fluid discharge device |
-
2014
- 2014-12-24 CN CN201410813064.3A patent/CN104564796A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087207A (en) * | 2020-08-24 | 2022-02-25 | 浙江三花商用制冷有限公司 | Fluid discharge device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
|
| WD01 | Invention patent application deemed withdrawn after publication |