CN2605404Y - Vane of high-pressure centrifugal fan - Google Patents
Vane of high-pressure centrifugal fan Download PDFInfo
- Publication number
- CN2605404Y CN2605404Y CN 02295496 CN02295496U CN2605404Y CN 2605404 Y CN2605404 Y CN 2605404Y CN 02295496 CN02295496 CN 02295496 CN 02295496 U CN02295496 U CN 02295496U CN 2605404 Y CN2605404 Y CN 2605404Y
- Authority
- CN
- China
- Prior art keywords
- blade
- curved surface
- centrifugal fan
- base
- pressure centrifugal
- 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 relates to a high-pressure and centrifugal blower blade, which is characterized in that the blade is a curved surface formed from twisting upwards a plane surface along the axle vertical line; the included angle of the hemline and the upper margin of the blade curved surface is from 6 degrees to 18 degrees and the cross sections of the curved surface from the hemline and the upper margin is a straight line; the rate of the included angle of any two cross sections of the curved surface from the hemline and the upper margin to the height difference of the heights of the two cross sections is a fixed number. The utility model has the advantage of reducing volume and augmenting the wind pressure and flow rate.
Description
Technical field
The utility model relates to a kind of centrifugal fan blade, particularly a kind of high pressure centrifugal fan blade.
Background technique
Present vented exhaust blower fan used in large-scale central air-conditioning system and industrial and mining enterprise, more employing centrifugal blower, but the centrifugal blower that in the applied environment that has, needs big-flow high-pressure power, and the centrifugal blower volume of existing big-flow high-pressure power is very big, cost rises.
Summary of the invention
The purpose of this utility model is to solve in the prior art vented exhaust blower fan used in large-scale central air-conditioning system and industrial and mining enterprise, more employing centrifugal blower, but the centrifugal blower that in the applied environment that has, needs big-flow high-pressure power, and the centrifugal blower volume of existing big-flow high-pressure power is very big, the problem that cost rises.The utility model design high pressure centrifugal fan blade, it is characterized in that: blade be a plane from the base upwards vertically vertical line reverse the curved surface that forms, the base of spoon of blade to the angular range of top margin is 6---18 degree, spoon of blade any one cross section from the base to top margin is a straight line, and the ratio of spoon of blade from the base to the height difference of the angle of any two cross-section lines of top margin and two cross-section lines is fixed number.The utility model has the advantages that and to dwindle the impeller volume, increase blast and flow.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated, accompanying drawing 1 is a structural representation of the present utility model, accompanying drawing 2 be the A of the utility model Fig. 1 to structural representation,
Among the embodiment figure blade 1 be a plane from the base upwards vertically vertical line reverse the curved surface that forms, the base 2 of blade 1 curved surface to the angular range of top margin 3 is 6---18 degree, 2 any one cross section to top margin 3 are straight line to blade 1 curved surface from the base, and 2 ratios to the height difference of the angle of any two cross-section lines of top margin 3 and two cross-section lines are fixed number to blade 1 curved surface from the base.During manufacturing with mould with blade 1 punching press, the base is welded on the impeller plate, top is reversed and is formed the mouth pressure angle, can dwindle the impeller volume, increases blast and flow.
Claims (4)
1, high pressure centrifugal fan blade is characterized in that: blade be a plane from the base upwards vertically vertical line reverse the curved surface that forms,
2, by the described high pressure centrifugal fan blade of claim 1, it is characterized in that: the base of spoon of blade to the angular range of top margin is 6---18 degree,
3, by the described high pressure centrifugal fan blade of claim 1, it is characterized in that: spoon of blade any one cross section from the base to top margin is a straight line,
4,, it is characterized in that by the described high pressure centrifugal fan blade of claim 1: spoon of blade from the base to the ratio of the angle of any two cross-section lines of top margin and the height difference of two cross-section lines for fixing a number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02295496 CN2605404Y (en) | 2002-12-27 | 2002-12-27 | Vane of high-pressure centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02295496 CN2605404Y (en) | 2002-12-27 | 2002-12-27 | Vane of high-pressure centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2605404Y true CN2605404Y (en) | 2004-03-03 |
Family
ID=34152167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02295496 Expired - Fee Related CN2605404Y (en) | 2002-12-27 | 2002-12-27 | Vane of high-pressure centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2605404Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725564B (en) * | 2008-10-16 | 2013-06-05 | 富准精密工业(深圳)有限公司 | Centrifugal fan and radiating device using same |
| CN103174674A (en) * | 2013-04-02 | 2013-06-26 | 宁波朗迪叶轮机械有限公司 | Oblique flow centrifugal impeller for air conditioner |
| CN103195753A (en) * | 2013-04-03 | 2013-07-10 | 宁波朗迪叶轮机械有限公司 | Backward-inclining type impeller |
| CN108644997A (en) * | 2018-06-13 | 2018-10-12 | 广东美的制冷设备有限公司 | Wind guiding component, air conditioner room unit and the air conditioner of air conditioner |
-
2002
- 2002-12-27 CN CN 02295496 patent/CN2605404Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725564B (en) * | 2008-10-16 | 2013-06-05 | 富准精密工业(深圳)有限公司 | Centrifugal fan and radiating device using same |
| CN103174674A (en) * | 2013-04-02 | 2013-06-26 | 宁波朗迪叶轮机械有限公司 | Oblique flow centrifugal impeller for air conditioner |
| CN103195753A (en) * | 2013-04-03 | 2013-07-10 | 宁波朗迪叶轮机械有限公司 | Backward-inclining type impeller |
| CN103195753B (en) * | 2013-04-03 | 2015-12-02 | 宁波朗迪叶轮机械有限公司 | Backswept impeller |
| CN108644997A (en) * | 2018-06-13 | 2018-10-12 | 广东美的制冷设备有限公司 | Wind guiding component, air conditioner room unit and the air conditioner of air conditioner |
| CN108644997B (en) * | 2018-06-13 | 2024-01-12 | 广东美的制冷设备有限公司 | Air guide assembly of air conditioner, indoor unit of air conditioner and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |