CN201891662U - Blower impeller with additional blade - Google Patents
Blower impeller with additional blade Download PDFInfo
- Publication number
- CN201891662U CN201891662U CN 201020605780 CN201020605780U CN201891662U CN 201891662 U CN201891662 U CN 201891662U CN 201020605780 CN201020605780 CN 201020605780 CN 201020605780 U CN201020605780 U CN 201020605780U CN 201891662 U CN201891662 U CN 201891662U
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- CN
- China
- Prior art keywords
- blade
- impeller
- attached
- blower
- draught fan
- 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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Abstract
The utility model discloses a blower impeller with an additional blade, and relates to an impeller of a blower for a high pressure head, which comprises a wheel cap, a wheel disc and a blade, wherein the rear side of the wheel disc is provided with the additional blade. The blower impeller with the additional blade can reduce the axial force of the blower, and solves the problem of the high-pressure single-suction blower that the axial additional force is large because of the air pressure, the service life of a bearing is prolonged, and the cost is saved for a user; and at the same time, the reduction of the positive pressure at a shaft seal also facilitates the prevention of the leakage of a gas medium, so the environment-friendly requirement can be satisfied.
Description
Technical field
The utility model relates to a kind of draught fan impeller, and what be specifically related to is a kind of draught fan impeller that has attached blade.
Background technique
High pressure single suction formula blower fan, the axial additional force that air pressure produces is bigger than normal, and the axial force that bearing bears is just big, easily causes gas medium to problems such as external leakages.At present, the measure that domestic most of blower fan manufacturing enterprise takes is to increase bearing diameter, increases the axle envelope, and these two manufacture costs that just increased blower fan greatly can not energy-saving and emission-reduction.
The model utility content
The model utility purpose: the purpose of this utility model provides a kind of axial force that reduces blower fan, reduces a malleation at envelope place, prevents the draught fan impeller that has attached blade that gas medium leaks.
The technical solution adopted in the utility model: a kind of draught fan impeller that has attached blade, comprise wheel cap, wheel disc, blade, the wheel disc rear side is provided with attached blade.
Described attached blade quantity is 4-8, and total head is high more, and the then attached number of blade can be got more, otherwise, then get less.
The width of described attached blade is the 0.07-0.13 of the exit width of impeller, and total head is high more, and the then attached number of blade can be wide more, otherwise, then get the small value.
The length of described attached blade is the 0.25-0.35 of impeller diameter, and total head is high more, and the then attached number of blade can be long more, otherwise, then get the small value.
Described blade can be forward direction blade, radial blade or backward inclined blade, blade outlet angle greater than 90 ° be called the forward direction blade, equal 90 ° the radial blade that is called, less than 90 ° the backward inclined blade that is called.
The material of described attached blade is the steel plate of high strength S690QL series, can increase the intensity of hub disk better.
Beneficial effect: the draught fan impeller that the utility model has an attached blade reduce blower fan axial force, reduce a malleation at envelope place, prevent that gas medium from leaking, reduced the vibration of unit, prolonged the working life of bearing, for the user has saved cost; Can reach simultaneously the purpose of energy-saving and emission-reduction, satisfy environmental protection requirement.
Description of drawings
Accompanying drawing is the utility model generalized section.
Embodiment
As shown in the figure, a kind of draught fan impeller that has attached blade, comprise wheel cap 1, wheel disc 2, blade 3, wheel disc 2 rear sides are provided with 4-8 attached blade 4, the width D of described attached blade 4 is the 0.07-0.13 of the exit width D1 of impeller, the length L of attached blade 4 is the 0.25-0.35 of impeller diameter R, and the material of attached blade 4 is the S690QL steel, and described blade 3 is forward direction blade, radial blade or backward inclined blade.
Claims (6)
1. a draught fan impeller that has attached blade comprises wheel cap (1), wheel disc (2), blade (3), it is characterized in that: wheel disc (2) rear side is provided with attached blade (4).
2. according to the described draught fan impeller that has attached blade of claim 1, it is characterized in that: described attached blade (4) quantity is 4-8.
3. according to the described draught fan impeller that has attached blade of claim 1, it is characterized in that: the width of described attached blade (4) is the 0.07-0.13 of the exit width of impeller.
4. according to the described draught fan impeller that has attached blade of claim 1, it is characterized in that: the length of described attached blade (4) is the 0.25-0.35 of impeller diameter.
5. according to the described draught fan impeller that has attached blade of claim 1, it is characterized in that: described blade (3) is forward direction blade, radial blade or backward inclined blade.
6. according to the described draught fan impeller that has attached blade of claim 1, it is characterized in that: the material of described attached blade (4) is the S690QL steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020605780 CN201891662U (en) | 2010-11-15 | 2010-11-15 | Blower impeller with additional blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020605780 CN201891662U (en) | 2010-11-15 | 2010-11-15 | Blower impeller with additional blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891662U true CN201891662U (en) | 2011-07-06 |
Family
ID=44221137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020605780 Expired - Fee Related CN201891662U (en) | 2010-11-15 | 2010-11-15 | Blower impeller with additional blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720346A (en) * | 2019-03-22 | 2020-09-29 | 信浓绢糸株式会社 | Air blower |
-
2010
- 2010-11-15 CN CN 201020605780 patent/CN201891662U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720346A (en) * | 2019-03-22 | 2020-09-29 | 信浓绢糸株式会社 | Air blower |
| CN111720346B (en) * | 2019-03-22 | 2022-06-07 | 信浓绢糸株式会社 | Air blower |
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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: 20110706 Termination date: 20131115 |