CN201865977U - Double-air-outlet draft fan - Google Patents
Double-air-outlet draft fan Download PDFInfo
- Publication number
- CN201865977U CN201865977U CN2010206213475U CN201020621347U CN201865977U CN 201865977 U CN201865977 U CN 201865977U CN 2010206213475 U CN2010206213475 U CN 2010206213475U CN 201020621347 U CN201020621347 U CN 201020621347U CN 201865977 U CN201865977 U CN 201865977U
- Authority
- CN
- China
- Prior art keywords
- induced draught
- air
- bellows
- model
- utility
- 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 discloses a double-air-outlet draft fan, which is provided with a fan body and a motor. The utility model is characterized in that the fan body is provided with a circular disc-shaped wind box (1), an air inlet (2) is arranged at one side of the wind box, two air outlets distant from each other by 180 degrees are arranged on the circumferential edge of the wind box, the air outlets are position in the tangential line positions on the periphery of the wind box, and the draft fan is also provided with a speed converter which is provided with a switch and a speed conversion controller. The draft fan is applicable to the draft operation, has a novel structure and is simple and applicable, the draft efficiency can be improved, and the energy source can be saved.
Description
Technical field
The utility model relates to a kind of induced draught fan, particularly a kind of improved novel pair of exhaust outlet induced draught fan.
Background technique
Induced draught fan is a kind of purposes electrical equipment very widely, and it is applied in the production and the various fields of living very at large.For a long time, induced draught fan all is an exhaust outlet, and air will revolve three-sixth turn at most in induced draught fan casing the inside could draw from exhaust outlet, so efficient is low, and wastes energy.So need make improvements,, save the energy to raise the efficiency.
The model utility content
The purpose of this utility model is in order to solve the problems of the technologies described above, to propose a kind of pair of exhaust outlet induced draught fan.This induced draught fan is provided with two exhaust outlets of symmetry, can improve the efficient of induced draught fan like this, saves.
The purpose of this utility model is achieved through the following technical solutions: two exhaust outlet induced draught fans, be provided with blower fan body, motor, it is characterized in that: described blower fan body is provided with the disc bellows, one side of these bellows is provided with intake grill, the periphery of bellows is provided with two exhaust outlets at a distance of 180 degree, and this exhaust outlet is positioned at the tangent position of bellows periphery.
The utility model further improves and the additional project of enforcement is:
This induced draught fan also is provided with speed change gear.
This induced draught fan is provided with the control gear of switch and speed change.
Induced draught fan of the present utility model has changed the structure of traditional induced draught fan list exhaust outlet, two exhaust outlets of symmetry are set on bellows, air can be drawn from one of two exhaust outlets by the maximum Rotate 180 degree that need only in back in the induced draught fan blade inspiration bellows like this, accelerated the speed of air flows, thereby can improve the efficient of induced draught fan, also save the energy.The utlity model has novel structure, raise the efficiency, the advantage of energy saving.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The profile of the utility model product is not subjected to the restriction of this figure, and only the profile change also belongs to protection domain of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further: embodiment: referring to accompanying drawing, two exhaust outlet induced draught fans, be provided with blower fan body, motor, described blower fan body is provided with disc bellows 1, one side of these bellows is provided with intake grill 2, the periphery of bellows is provided with two exhaust outlets 31,32 at a distance of 180 degree, and this exhaust outlet is positioned at the tangent position of bellows periphery.Also be provided with the control gear of speed change gear and switch, speed change.
It below only is 1 embodiment of this patent; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of this patent.
Claims (3)
1. two exhaust outlet induced draught fan, be provided with blower fan body, motor, it is characterized in that: described blower fan body is provided with disc bellows (1), and a side of these bellows is provided with intake grill (2), the periphery of bellows is provided with two exhaust outlets at a distance of 180 degree, and this exhaust outlet is positioned at the tangent position of bellows periphery.
2. induced draught fan according to claim 1 is characterized in that: be provided with speed change gear.
3. induced draught fan according to claim 1 and 2 is characterized in that: the control gear that is provided with switch and speed change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206213475U CN201865977U (en) | 2010-11-24 | 2010-11-24 | Double-air-outlet draft fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206213475U CN201865977U (en) | 2010-11-24 | 2010-11-24 | Double-air-outlet draft fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201865977U true CN201865977U (en) | 2011-06-15 |
Family
ID=44137133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206213475U Expired - Fee Related CN201865977U (en) | 2010-11-24 | 2010-11-24 | Double-air-outlet draft fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201865977U (en) |
-
2010
- 2010-11-24 CN CN2010206213475U patent/CN201865977U/en not_active Expired - Fee Related
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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: 20110615 Termination date: 20111124 |