CN204583828U - Sandwich-type annular hollow dedusting draught hood - Google Patents
Sandwich-type annular hollow dedusting draught hood Download PDFInfo
- Publication number
- CN204583828U CN204583828U CN201520282599.2U CN201520282599U CN204583828U CN 204583828 U CN204583828 U CN 204583828U CN 201520282599 U CN201520282599 U CN 201520282599U CN 204583828 U CN204583828 U CN 204583828U
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- China
- Prior art keywords
- fan housing
- internal layer
- sandwich
- air outlet
- draught hood
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Abstract
The utility model discloses a kind of sandwich-type annular hollow dedusting draught hood, described draught hood comprises internal layer fan housing and outer fan housing, forms sandwich passage between described internal layer fan housing and outer fan housing; Described outer fan housing is made up of outer fan housing top and outer fan housing bottom, and this outer fan housing its upper top is provided with main air outlet; Described internal layer fan housing is made up of internal layer fan housing top and internal layer fan housing bottom, and internal layer fan housing its upper top is provided with interior air outlet, and this interior air outlet is provided with damper.Compared with the existing; suction is farthest distributed in maximum outer region by the sandwich-type annular hollow dedusting draught hood of the utility model protection, expands suction areas, effectively strengthens air flowing; maximum magnitude ground produces effective lamina air flow, improves exhausting smoking effect.
Description
Technical field
The utility model relates to a kind of dust arrester, particularly a kind of sandwich-type annular hollow dedusting draught hood.
Background technology
The fan housing inlet scoop of the occasions such as the occasion of traditional ventilation and dust removal smoke abatement is the central axis position at suspended hood, its intrinsic structure certainly will cause central area suction large, wind speed is too high, edge suction is little, wind speed is too low, this suction and wind speed will be spread to neighboring area by central area with ring-type and cone shape, successively decreased in region to the periphery from high to low by central axis region in draught hood overlay area, because wind speed is low, effective air convection phenomenon can not be formed, around fan housing and the suction of fringe region little, wind speed is slow, air convection phenomenon is more not obvious, passable in the exhausting effect in central axis region, but will obviously weaken around, be unfavorable for the effect of ventilation and dust removal smoke abatement, if have wild wind effect will have a strong impact on its normal working effect simultaneously, if reach desirable exhausting effect, certainly will cause strengthening power of fan, affect equipment investment and operation energy consumption further.
Utility model content
The purpose of this utility model is just to provide a kind of sandwich-type annular hollow dedusting draught hood, suction is farthest distributed in maximum outer region by this sandwich-type annular hollow dedusting draught hood, expand suction areas, effectively strengthen air flowing, maximum magnitude ground produces effective lamina air flow, improves exhausting smoking effect.
Technical scheme is: a kind of sandwich-type annular hollow dedusting draught hood, and described draught hood comprises internal layer fan housing and outer fan housing, forms sandwich passage between described internal layer fan housing and outer fan housing; Described outer fan housing is made up of outer fan housing top and outer fan housing bottom, and this outer fan housing its upper top is provided with main air outlet; Described internal layer fan housing is made up of internal layer fan housing top and internal layer fan housing bottom, and internal layer fan housing its upper top is provided with interior air outlet, and this interior air outlet is provided with damper.
As preferably, described main air outlet cross section is interior air outlet cross section and sandwich passage cross section sum.
As preferably, described interior air outlet cross section is 1:7-1:14 with the ratio in sandwich passage cross section.
As preferably, the angle β between described outer fan housing bottom and vertical line is greater than 0 degree and is less than or equal to 35 degree.
As preferably, the angle α between described internal layer fan housing bottom and vertical line is greater than 0 degree and is less than or equal to 35 degree.
Compared with prior art, utility model principle of the present utility model and beneficial effect are:
The utility model adds one deck fan housing again at draught hood internal layer on the basis of general individual layer fan housing, cavity is produced between 2 layers of fan housing, form new air draft passage, the fan housing top of internal layer arranges an air door that can regulate simultaneously, for regulating internal layer fan housing air port size, reasonable distribution ectonexine air quantity; Ectonexine air quantity is distributed according to 1:8 to 1:15; When moment internal layer flow be greater than the draught capacity in middle air channel, air quantity will move along the peripherad interlayer air port of fan housing, again by air channel, edge suck draught hood; When central area produces nature ascending air (if any the air-flow of hot gas, effect is better obviously), main ventilation pipe is risen to by the ventilating opening of internal layer, according to civilian Qiu Shi pipe principle, its main ventilation pipe entered of spontaneous internal layer ascending air boosting, does not affect outer field air quantity and suction or affects very little.
The utility model effectively improves wind speed and suction distribution, utilize its natural air principle, the feature that flue gas rises naturally, the suction of effective compartment system, farthest suction is distributed in maximum outer region, expands suction areas, effectively strengthen air flowing, maximum magnitude ground produces effective lamina air flow, improves exhausting smoking effect; Then under same power of fan, the exhausting effect produced will obviously improve, or under same exhausting smoking effect prerequisite, the power of fan be equipped with obviously diminishes, and is conducive to reducing equipment investment and saving energy consumption.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of sandwich-type annular hollow dedusting draught hood, comprises internal layer fan housing 2 and outer fan housing 1, forms sandwich passage 6 between internal layer fan housing 2 and outer fan housing 1.
Outer fan housing 1 is made up of outer fan housing top 7 and outer fan housing bottom 8, and top, outer fan housing top 7 is provided with main air outlet 3.
Angle β between outer fan housing bottom 8 and vertical line is greater than 0 degree but is no more than 35 degree, is convenient to introduce air-flow from larger periphery.
Internal layer fan housing 2 is made up of internal layer fan housing top 9 and internal layer fan housing bottom 10, and top, internal layer fan housing top 9 is provided with interior air outlet 4, and interior air outlet 4 is provided with damper 5.Damper 5 is for regulating internal layer fan housing air port size, reasonable distribution ectonexine air quantity.
Angle α between internal layer fan housing bottom 10 and vertical line is greater than 0 degree but is no more than 35 degree, is convenient to introduce air-flow from larger periphery.
Main air outlet cross section is interior air outlet cross section and sandwich passage cross section sum, and interior air outlet cross section is 1:7-1:14 with the ratio in sandwich passage cross section.
When opening ventilation and dust removal equipment, centrifugal blower starts, ascending air (generally having the occasion of dust or flue gas all to have ascending air trend) rises naturally, enter into the interior air outlet 4 of internal layer fan housing 2, enter main air outlet 3 again, ring-type interlayer air port simultaneously around internal layer fan housing 2 drives ambient air, thus drives the gas of fan housing periphery, effectively avoids smoke dust excessive.
Claims (5)
1. a sandwich-type annular hollow dedusting draught hood, is characterized in that: described draught hood comprises internal layer fan housing and outer fan housing, forms sandwich passage between described internal layer fan housing and outer fan housing; Described outer fan housing is made up of outer fan housing top and outer fan housing bottom, and this outer fan housing its upper top is provided with main air outlet; Described internal layer fan housing is made up of internal layer fan housing top and internal layer fan housing bottom, and internal layer fan housing its upper top is provided with interior air outlet, and this interior air outlet is provided with damper.
2. sandwich-type annular hollow dedusting draught hood according to claim 1, is characterized in that: described main air outlet cross section is interior air outlet cross section and sandwich passage cross section sum.
3. sandwich-type annular hollow dedusting draught hood according to claim 2, is characterized in that: described interior air outlet cross section is 1:7-1:14 with the ratio in sandwich passage cross section.
4. sandwich-type annular hollow dedusting draught hood according to claim 1, is characterized in that: the angle β between described outer fan housing bottom and vertical line is greater than 0 degree and is less than or equal to 35 degree.
5. sandwich-type annular hollow dedusting draught hood according to claim 1, is characterized in that: the angle α between described internal layer fan housing bottom and vertical line is greater than 0 degree and is less than or equal to 35 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520282599.2U CN204583828U (en) | 2015-05-04 | 2015-05-04 | Sandwich-type annular hollow dedusting draught hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520282599.2U CN204583828U (en) | 2015-05-04 | 2015-05-04 | Sandwich-type annular hollow dedusting draught hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204583828U true CN204583828U (en) | 2015-08-26 |
Family
ID=53920029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520282599.2U Expired - Fee Related CN204583828U (en) | 2015-05-04 | 2015-05-04 | Sandwich-type annular hollow dedusting draught hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204583828U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151108A (en) * | 2016-08-02 | 2016-11-23 | 南通白云环保工程设备有限公司 | A kind of band accelerator formula wind-collecting cover |
| CN106439964A (en) * | 2016-09-30 | 2017-02-22 | 宁波方太厨具有限公司 | Extractor hood |
-
2015
- 2015-05-04 CN CN201520282599.2U patent/CN204583828U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151108A (en) * | 2016-08-02 | 2016-11-23 | 南通白云环保工程设备有限公司 | A kind of band accelerator formula wind-collecting cover |
| CN106439964A (en) * | 2016-09-30 | 2017-02-22 | 宁波方太厨具有限公司 | Extractor hood |
| CN106439964B (en) * | 2016-09-30 | 2019-11-12 | 宁波方太厨具有限公司 | A kind of range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20180504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |