CN200943599Y - Impeller of novel structure - Google Patents
Impeller of novel structure Download PDFInfo
- Publication number
- CN200943599Y CN200943599Y CN 200620044842 CN200620044842U CN200943599Y CN 200943599 Y CN200943599 Y CN 200943599Y CN 200620044842 CN200620044842 CN 200620044842 CN 200620044842 U CN200620044842 U CN 200620044842U CN 200943599 Y CN200943599 Y CN 200943599Y
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- CN
- China
- Prior art keywords
- impeller
- utility
- blade
- model
- flow
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model is an impeller with a new-style structure and relates to an impeller of a water pump, which comprises a front cover board, a rear cover board, an impeller and a shaft liner. The utility model is characterized in that: the rear cover board of the impeller is provided with a flow-through hole, the flow-through hole is arranged in the rear cover board, the flybar blade on the rear cover board is a backward-curved blade. The numbers of the flow-through holes are the same as the blades. The open area of the flow-through hole is 1-1.2 times of the area of flybar blade inlet. The utility model has the advantages that the structure of the impeller is similar with a double-suction impeller so that the flybar blade does not balance the axial forces, reduce the pressure on the sealing cavity, but also works to the liquids, creates a flow and a lift, recover consumption and power of the flybar impeller, thus increases the efficiency of the pump. The utility model can increase the efficiency of the same type pumps by 5-10%.
Description
Technical field
The utility model relates to the impeller of a kind of impeller of water pump, particularly a kind of new structure.
Background technique
Sub-propeller dynamic seal is at present formed (see figure 1) by back blades, and back blades is a straight radial shape, and main effect is the pressure that lowers pump chamber, reaches balancing axial thrust.The problem that exists: being in operation to consume some additional power, generally needs to increase power about 5～10%.
Summary of the invention
The purpose of this utility model is to solve existing the problems referred to above in the prior art, provides a kind of.The utility model designs a kind of impeller of new structure, comprises front shroud, back shroud, blade, axle sleeve, it is characterized in that: be provided with flowing hole on the back shroud of impeller, flowing hole is positioned at the back shroud inboard, and the back blades on the back shroud is a backward leaning vane.The number of flowing hole is identical with blade.The area of passage of flowing hole is 1～1.2 times of back blades inlet-duct area.The utility model has the advantages that the similar double-entry impeller of this impeller, make back blades not only play balancing axial thrust, lower the pressure of Seal cage, and, produce flow and lift the liquid work done, reclaimed the power of consumption and sub-propeller, so improved the efficient of pump.Can make the efficient of pump of the same type improve about 5～10%.
Description of drawings
Accompanying drawing 1 is existing blade wheel structure schematic representation,
Accompanying drawing 2 is a structural representation of the present utility model,
Accompanying drawing 3 is Fig. 1 cross-sectional view of the present utility model,
Below in conjunction with drawings and Examples the utility model is elaborated,
Embodiment
Comprise front shroud 1, back shroud 2, blade 3, axle sleeve 4 among the figure, it is characterized in that: be provided with flowing hole 5 on the back shroud 2 of impeller, flowing hole 5 is positioned at back shroud 2 inboards, and the back blades 6 on the back shroud 2 is a backward leaning vane.The number of flowing hole 5 is identical with blade 3.The area of passage of flowing hole 5 is 1～1.2 times of back blades 6 inlet-duct areas.Back blades inlet-duct area F=2 π rb/ , wherein r is the radius of back blades inlet to the impeller axis, and b is the back blades width, and gets 75%-90% usually for back blades thickness occupies the percentage of discharge area.
Owing on back shroud of impeller 2, be cast with the rational flowing hole 5 of area, and back blades 6 is designed to the palintrope shape, lift that back blades 6 produces and equating that impeller produces, the structure of this impeller is like being double-entry impeller, make back blades 6 not only play balancing axial thrust, lower the pressure of Seal cage, and, produce flow and lift the liquid work done, reclaimed the power of consumption and sub-propeller, so improved the efficient of pump.
Claims (3)
1, a kind of impeller of new structure comprises front shroud, back shroud, blade, axle sleeve, it is characterized in that: be provided with flowing hole on the back shroud of impeller, flowing hole is positioned at the back shroud inboard, and the back blades on the back shroud is a backward leaning vane.
2, by the impeller of the described a kind of new structure of claim 1, it is characterized in that: the number of flowing hole is identical with blade.
3, by the impeller of the described a kind of new structure of claim 1, it is characterized in that: the area of passage of flowing hole is 1～1.2 times of back blades inlet-duct area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044842 CN200943599Y (en) | 2006-08-15 | 2006-08-15 | Impeller of novel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044842 CN200943599Y (en) | 2006-08-15 | 2006-08-15 | Impeller of novel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200943599Y true CN200943599Y (en) | 2007-09-05 |
Family
ID=38718230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044842 Expired - Fee Related CN200943599Y (en) | 2006-08-15 | 2006-08-15 | Impeller of novel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200943599Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907348A (en) * | 2015-12-23 | 2017-06-30 | 德昌电机(深圳)有限公司 | Impeller and the pump using the impeller |
-
2006
- 2006-08-15 CN CN 200620044842 patent/CN200943599Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907348A (en) * | 2015-12-23 | 2017-06-30 | 德昌电机(深圳)有限公司 | Impeller and the pump using the impeller |
| JP2017160900A (en) * | 2015-12-23 | 2017-09-14 | ジョンソン エレクトリック ソシエテ アノニム | Impeller, and pump using impeller |
| US10495102B2 (en) | 2015-12-23 | 2019-12-03 | Johnson Electric International AG | Impeller and pump using the impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070905 Termination date: 20110815 |