CN203431964U - Air channel mechanism of exhaust hood - Google Patents
Air channel mechanism of exhaust hood Download PDFInfo
- Publication number
- CN203431964U CN203431964U CN201320498894.2U CN201320498894U CN203431964U CN 203431964 U CN203431964 U CN 203431964U CN 201320498894 U CN201320498894 U CN 201320498894U CN 203431964 U CN203431964 U CN 203431964U
- Authority
- CN
- China
- Prior art keywords
- air channel
- exhaust outlet
- air
- lampblack absorber
- rotary blade
- 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 - Lifetime
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Abstract
The utility model discloses an air channel mechanism of an exhaust hood. The air channel mechanism comprises an air channel box body, a rotary impeller and an air channel clapboard, wherein the rotary impeller is arranged in the air channel box body, an exhaust hole is formed in the air channel box body, and is positioned in the back surface of the rotary impeller, the air channel clapboard is positioned between the rotary impeller and the exhaust hole, a position of the air channel clapboard, which is far away from the air outlet, is fully-closed, and arc guiding is adopted at the air outlet. By adopting the air channel mechanism of the exhaust hood, the suction force of the exhaust hood can be effectively increased.
Description
Technical field
The utility model relates to lampblack absorber field, specifically relates to a kind of air channel mechanism of lampblack absorber.
Background technology
Existing lampblack absorber adopts often through type between rotary blade and exhaust outlet, between rotary blade and exhaust outlet, without any dividing plate, stops.In use, such structure inevitably can produce large quantity of air and in air channel, circulate the phenomenon that but can not normally go out from exhaust outlet, has reduced the air draught ability of lampblack absorber, has also caused the waste of mass energy.
Analyzing and can find that this phenomenon is because inner blast ladder is not obvious on the one hand by experiment, cause air Methodisticly not flow, is owing to there is no corresponding guide frame on the other hand, guides flowing of air.
Utility model content
(1) technical problem that will solve
The deficiency existing for prior art, the utility model provides a kind of can strengthen blast ladder, realize air guide and then increase the air channel mechanism of the lampblack absorber of whole lampblack absorber suction.
(2) technical scheme
For achieving the above object, the utility model provides a kind of air channel mechanism of lampblack absorber, comprise air channel casing, rotary blade and air-duct clapboard, described rotary blade is arranged in the casing of described air channel, on the casing of described air channel, have exhaust outlet, the back side of described exhaust outlet in rotary blade, described air-duct clapboard is located between described rotary blade and described exhaust outlet, described air-duct clapboard is totally-enclosed away from exhaust outlet place, and exhaust outlet place is circular arc guiding.
Further, described air-duct clapboard and described air channel casing have between the plate face of exhaust outlet as being arranged in parallel.
Further, from the angle perpendicular to described exhaust outlet place face, the area that described air-duct clapboard covers described exhaust outlet is 0.5 to 0.7 times of exhaust outlet area.
(3) beneficial effect
The air channel mechanism of the utility model lampblack absorber can effectively increase the suction of lampblack absorber.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air channel mechanism of the utility model lampblack absorber;
Fig. 2 is the structural representation of the air channel mechanism side of the utility model lampblack absorber.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
The structure of the air channel mechanism of a kind of lampblack absorber of the present utility model as depicted in figs. 1 and 2, comprise air channel casing 4, rotary blade 1 and air-duct clapboard 2, described rotary blade 1 is arranged in described air channel casing 4, on described air channel casing 4, have exhaust outlet 3, the back side of described exhaust outlet 3 in rotary blade 1, described air-duct clapboard 2 is located between described rotary blade 1 and described exhaust outlet 3
Wherein, air-duct clapboard 2 proportion expressions are cut off, and away from exhaust outlet 3 places, are totally-enclosed, near exhaust outlet 3 places, are circular arc guiding 21.It is respectively higher-pressure region 60 that air-duct clapboard 2 is divided into three regions inside, air channel, transition region 50, low-pressure area 70.The increase of transition region 50, alleviates inner air and flows, and increases low-pressure area 70 wind directions and turns limit efficiency.
In addition, described air-duct clapboard 2 and described air channel casing 4 have between the plate face of exhaust outlet 3 as being arranged in parallel.From the angle perpendicular to described exhaust outlet 3 place faces, the area that described air-duct clapboard 2 covers described exhaust outlet 3 is 0.5 to 0.7 times of exhaust outlet 3 areas.
Wherein, arrow in Fig. 1 and Fig. 2 has been illustrated the flow condition of air in lampblack absorber.
The experiment proved that this embodiment can make the suction air volume of lampblack absorber increase 9.6%.
The beneficial effects of the utility model: the suction air volume that can effectively increase lampblack absorber.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the air channel mechanism of a lampblack absorber, it is characterized in that, comprise air channel casing (4), rotary blade (1) and air-duct clapboard (2), described rotary blade (1) is arranged in described air channel casing (4), on described air channel casing (4), have exhaust outlet (3), the back side of described exhaust outlet (3) in rotary blade (1), described air-duct clapboard (2) is located between described rotary blade (1) and described exhaust outlet (3), described air-duct clapboard (2) is located as totally-enclosed away from exhaust outlet (3), near exhaust outlet (3), locates as circular arc guiding (21).
2. the air channel mechanism of lampblack absorber as claimed in claim 1, is characterized in that, described air-duct clapboard (2) and described air channel casing (4) have between the plate face of exhaust outlet (3) as being arranged in parallel.
3. the air channel mechanism of lampblack absorber as claimed in claim 1 or 2, it is characterized in that, from the angle perpendicular to described exhaust outlet (3) place face, the area that described air-duct clapboard (2) covers described exhaust outlet (3) is 0.5 to 0.7 times of exhaust outlet (3) area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320498894.2U CN203431964U (en) | 2013-08-15 | 2013-08-15 | Air channel mechanism of exhaust hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320498894.2U CN203431964U (en) | 2013-08-15 | 2013-08-15 | Air channel mechanism of exhaust hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431964U true CN203431964U (en) | 2014-02-12 |
Family
ID=50060999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320498894.2U Expired - Lifetime CN203431964U (en) | 2013-08-15 | 2013-08-15 | Air channel mechanism of exhaust hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431964U (en) |
-
2013
- 2013-08-15 CN CN201320498894.2U patent/CN203431964U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |