CN202732468U - Meridian acceleration adjustable double-blade axial flow fan impeller - Google Patents
Meridian acceleration adjustable double-blade axial flow fan impeller Download PDFInfo
- Publication number
- CN202732468U CN202732468U CN 201220353803 CN201220353803U CN202732468U CN 202732468 U CN202732468 U CN 202732468U CN 201220353803 CN201220353803 CN 201220353803 CN 201220353803 U CN201220353803 U CN 201220353803U CN 202732468 U CN202732468 U CN 202732468U
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- CN
- China
- Prior art keywords
- axial flow
- flow fan
- blade
- meridian acceleration
- acceleration adjustable
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- Expired - Fee Related
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Abstract
Provided is a meridian acceleration adjustable double-blade axial flow fan impeller. The meridian acceleration adjustable double-blade axial flow fan impeller is composed of a large blade, a small blade and a wheel hub. The small blade is fixed on the wheel hub in fastening mode through bolts and nuts. The meridian acceleration adjustable double-blade axial flow fan impeller has the advantages of being high in use pressure head, safe and stable and low in manufacturing cost, and capable of changing aerodynamic performance by adjusting installation angles of the small blade.
Description
Technical field
The utility model relates to a kind of dry-dedusting system field, and the utility model is specifically for delivery of a kind of axial flow fan vane wheel of the coal gas of converter of Iron And Steel Plant.
Background technique
Along with the high speed development of national economy, advocate and use energy saving environmental protection product to become main flow.Can produce a large amount of coal gas flue dust that contains iron powder in many convertor steelmaking process.If effectively recycling iron powder and coal gas, resource and the energy that not only can saves valuable have also been protected environment simultaneously.At present, steel industry converter coal gas purification recovery technology has two kinds both at home and abroad, is respectively wet method dedusting system and dry-dedusting system.Compare with traditional wet method dedusting system, dry-dedusting system have purification efficiency high, do not need waste water disposal facility, coal-gas recovering amount many, take up an area economize, system resistance little (8～10kPa), the significant advantage such as the matched with blower power of motor is little.Therefore, adopt dry-dedusting system to realize that for steel industry target for energy-saving and emission-reduction is significant.Yet still there is very large problem in domestic converter coal gas purification recovering device, and there is following shortcoming in main axial flow fan vane wheel in the dry dedusting of converter technological process: 1, impeller uses the pressure requirement that does not reach the user; 2, fan impeller structure is unreasonable, causes that the strength and stiffness of impeller is inadequate; 3, can not adapt to the changeable operating mode of user's fielded system; 4, the draught fan impeller fabricating cost is too high.
The model utility content
The utility model is intended to overcome above-mentioned technological deficiency, the meridian acceleration adjustable dual laminae axial flow fan vane wheel that purpose provides and a kind ofly uses that pressure head is high, safety and stability, adjusting small leaf established angle change aeroperformance, fabricating cost is cheap.
For achieving the above object, the technical solution adopted in the utility model is: be comprised of large blade, small leaf, wheel hub; Small leaf is fixed on the wheel hub by screw, nut check.
The utility model is owing to adopting wheel hub and the blade of the design of meridian plane acceleration principle, and the applying working condition downforce is greatly improved, and has overcome the low shortcoming of axial-flow blower pressure head; By impeller is carried out finite element analysis, project organization is rationalized more, guarantee to use the safety reliability of impeller; The large blade of axial flow fan vane wheel adopts the equal thickness steel plate to be pressed into three-dimensional twisted plank frame by mould, and its small leaf adopts forging to mill by milling machine to make three-dimensional twisted wing blade structure, guaranteed stability and the accuracy of axial-flow blower usability; The impeller small leaf adopts screw, nut adjusting locking to be connected with wheel hub, and then small leaf satisfies the different performance of operating condition of user by changing established angle; Wheel hub is by being welded between load-carrying ring, cone cylinder, stiffening ring, the driver plate, and wherein only having load-carrying ring is forging, has lowered the fabricating cost of wheel hub.
Description of drawings
Fig. 1 is the utility model meridian acceleration adjustable dual laminae axial flow fan vane wheel schematic diagram;
Fig. 2 is the utility model meridian acceleration adjustable dual laminae axial flow fan vane wheel cross-sectional schematic;
In the drawings: 1 is large blade, and 2 is small leaf, and 3 is wheel hub, and 3a is load-carrying ring, and 3b is the cone cylinder, and 3c is stiffening ring, and 3d is driver plate, and 4 is screw, and 5 is nut.
Embodiment
Below in conjunction with accompanying drawing the utility model being further described, is not the restriction to its protection domain.
A kind of meridian acceleration adjustable dual laminae axial flow fan vane wheel is comprised of large blade (1), small leaf (2), wheel hub (3).
The wheel hub of this embodiment (3) is by being welded between load-carrying ring (3a), cone cylinder (3b), stiffening ring (3c), the driver plate (3d), and wherein only having load-carrying ring (3a) is forging, has lowered the fabricating cost of wheel hub.
The large blade (1) of this embodiment is the board-like three-dimensional twisted structure that is pressed into uniform thickness by the equal thickness steel plate by mould, and quantity is 11～15, and each large blade (1) molded line is consistent, and has also guaranteed simultaneously the acting performance of impeller.
The small leaf of this embodiment (2) is to be milled by milling machine by forging to make three-dimensional twisted wing blade structure, and quantity is 11～15, guarantees that each small leaf (2) molded line is accurate, and then has guaranteed the acting performance of impeller.
The large blade (1) of this embodiment keeps identical with small leaf (2) quantity.
The impeller small leaf (2) of this embodiment adopts screw (4), nut (5) adjusting locking to be connected with wheel hub (3), then satisfies the different performance of operating condition of user by changing small leaf (2) established angle.
Therefore, the utility model is a kind ofly to use that pressure head is high, safety and stability, have and regulate the small leaf established angle and change aeroperformance, meridian acceleration adjustable dual laminae axial flow fan vane wheel that fabricating cost is cheap.
Claims (5)
1. meridian acceleration adjustable dual laminae axial flow fan vane wheel, it is comprised of large blade (1), small leaf (2), wheel hub (3); It is characterized in that: small leaf (2) is locked on wheel hub (3) by screw (4), nut (5).
2. described meridian acceleration adjustable dual laminae axial flow fan vane wheel according to claim 1 is characterized in that, described large blade (1) is the board-like three-dimensional twisted structure of uniform thickness, and quantity is 11～15.
3. described meridian acceleration adjustable dual laminae axial flow fan vane wheel according to claim 1 is characterized in that, described small leaf (2) is the three-dimensional twisted structure of wing blade, and quantity is 11～15.
4. described meridian acceleration adjustable dual laminae axial flow fan vane wheel according to claim 1 is characterized in that, described large blade (1) keeps identical with small leaf (2) quantity.
5. described meridian acceleration adjustable dual laminae axial flow fan vane wheel according to claim 1 is characterized in that, the structure that described wheel hub (3) is comprised of load-carrying ring (3a), cone cylinder (3b), a stiffening ring (3c), driver plate (3d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353803 CN202732468U (en) | 2012-07-20 | 2012-07-20 | Meridian acceleration adjustable double-blade axial flow fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353803 CN202732468U (en) | 2012-07-20 | 2012-07-20 | Meridian acceleration adjustable double-blade axial flow fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732468U true CN202732468U (en) | 2013-02-13 |
Family
ID=47658172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220353803 Expired - Fee Related CN202732468U (en) | 2012-07-20 | 2012-07-20 | Meridian acceleration adjustable double-blade axial flow fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108702047A (en) * | 2016-02-23 | 2018-10-23 | 西门子股份公司 | rotor and motor |
-
2012
- 2012-07-20 CN CN 201220353803 patent/CN202732468U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108702047A (en) * | 2016-02-23 | 2018-10-23 | 西门子股份公司 | rotor and motor |
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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: 20130213 Termination date: 20130720 |