CN102465918A - Blower impeller with additional blade - Google Patents
Blower impeller with additional blade Download PDFInfo
- Publication number
- CN102465918A CN102465918A CN 201010543209 CN201010543209A CN102465918A CN 102465918 A CN102465918 A CN 102465918A CN 201010543209 CN201010543209 CN 201010543209 CN 201010543209 A CN201010543209 A CN 201010543209A CN 102465918 A CN102465918 A CN 102465918A
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- CN
- China
- Prior art keywords
- blade
- impeller
- attaches
- 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.)
- Pending
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention 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 environmentally-friendly requirement can be satisfied.
Description
Technical field
The present invention relates to a kind of draught fan impeller, what be specifically related to is a kind of draught fan impeller that attaches blade that has.
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, is prone to cause gas medium to problems such as external leakages.At present, the measure that most domestic 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.
Summary of the invention
Goal of the invention: the purpose of this invention is to provide a kind of axial force that reduces blower fan, reduce a malleation at envelope place, prevent the draught fan impeller that attaches blade that has that gas medium leaks.
The technological scheme that the present invention adopts: a kind of draught fan impeller that attaches blade that has, comprise wheel cap, wheel disc, blade, the wheel disc rear side is provided with attaches blade.
Said to attach blade quantity be 4-8, and total head is high more, then attach the number of blade and can get more, otherwise, then get less.
The said width that attaches blade is the 0.07-0.13 of the exit width of impeller, and total head is high more, and then attaching the number of blade can be wide more, otherwise, then get the small value.
Said length of attaching blade is the 0.25-0.35 of impeller diameter, and total head is high more, and then attaching the number of blade can be long more, otherwise, then get the small value.
Said 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.
Said material of attaching blade is the steel plate of high tenacity S690QL series, can increase the intensity of hub disk better.
Beneficial effect: the present invention has axial force that the draught fan impeller that attaches blade reduces blower fan, reduces a malleation at envelope place, prevents that gas medium from leaking, and has reduced the vibration of unit, has prolonged the working life of bearing, for the user has practiced thrift cost; Can reach simultaneously the purpose of energy-saving and emission-reduction, satisfy environmental protection requirement.
Description of drawings
Accompanying drawing is a generalized section of the present invention.
Embodiment
As shown in the figure; A kind of draught fan impeller that attaches blade that has comprises wheel cap 1, wheel disc 2, blade 3, and wheel disc 2 rear sides are provided with 4-8 and attach blade 4; Said width D of attaching blade 4 is the 0.07-0.13 of the exit width D1 of impeller; The length L of attaching blade 4 is the 0.25-0.35 of impeller diameter R, and the material of attaching blade 4 is the S690QL steel, and said blade 3 is forward direction blade, radial blade or backward inclined blade.
Claims (6)
1. one kind has the draught fan impeller that attaches blade, comprises wheel cap (1), wheel disc (2), blade (3), it is characterized in that: wheel disc (2) rear side is provided with attaches blade (4).
2. according to the said draught fan impeller that attaches blade that has of claim 1, it is characterized in that: said to attach blade (4) quantity be 4-8.
3. according to the said draught fan impeller that attaches blade that has of claim 1, it is characterized in that: the said width that attaches blade (4) is the 0.07-0.13 of the exit width of impeller.
4. according to the said draught fan impeller that attaches blade that has of claim 1, it is characterized in that: said length of attaching blade (4) is the 0.25-0.35 of impeller diameter.
5. according to the said draught fan impeller that attaches blade that has of claim 1, it is characterized in that: said blade (3) is forward direction blade, radial blade or backward inclined blade.
6. according to the said draught fan impeller that attaches blade that has of claim 1, it is characterized in that: said material of attaching blade (4) is the S690QL steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010543209 CN102465918A (en) | 2010-11-15 | 2010-11-15 | Blower impeller with additional blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010543209 CN102465918A (en) | 2010-11-15 | 2010-11-15 | Blower impeller with additional blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102465918A true CN102465918A (en) | 2012-05-23 |
Family
ID=46069915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010543209 Pending CN102465918A (en) | 2010-11-15 | 2010-11-15 | Blower impeller with additional blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102465918A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386995A (en) * | 2015-11-26 | 2016-03-09 | 安徽六国化工股份有限公司 | High-pressure centrifugal fan capable of reducing wind leakage amount |
| CN108386372A (en) * | 2018-01-05 | 2018-08-10 | 佛山杰致信息科技有限公司 | A kind of intelligent power saving blower fan system based on three-dimensional flow impeller |
-
2010
- 2010-11-15 CN CN 201010543209 patent/CN102465918A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386995A (en) * | 2015-11-26 | 2016-03-09 | 安徽六国化工股份有限公司 | High-pressure centrifugal fan capable of reducing wind leakage amount |
| CN108386372A (en) * | 2018-01-05 | 2018-08-10 | 佛山杰致信息科技有限公司 | A kind of intelligent power saving blower fan system based on three-dimensional flow impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120523 |