CN206360899U - Exhaust blower based on Coanda effect - Google Patents
Exhaust blower based on Coanda effect Download PDFInfo
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- CN206360899U CN206360899U CN201621238362.5U CN201621238362U CN206360899U CN 206360899 U CN206360899 U CN 206360899U CN 201621238362 U CN201621238362 U CN 201621238362U CN 206360899 U CN206360899 U CN 206360899U
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- pedestal
- outer ring
- air inlet
- inner ring
- coanda effect
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Abstract
The utility model discloses a kind of exhaust blower based on Coanda effect, it includes cylindric pedestal, the air draft circle being arranged on room ventilation pipeline, the junction of pedestal and ventilation shaft is provided with end cap, end cap is provided with ventilation mouth, the air draft circle is the hollow circular cylinder for the both ends open for including outer ring and inner ring, and several dowels, pedestal and outer ring vertical connection are provided between outer ring and inner ring, outer ring and the junction of pedestal are provided with air inlet, and inner ring is stitched with air inlet in 90 ° of side wall provided with bar.The utility model uses the ventilating fan for the double-round fanned without leaf, and the outer ring of ventilating fan is provided with air inlet, and inner ring is stitched provided with bar, based on Coanda effect, indoor toxic and harmful gas is quickly discharged outdoor, and the utility model has the characteristics of air-flow is uniform and stable, flow is big, significantly, noise is small for exhaust effect；Simple in construction, small volume of the present utility model, it is easily installed, it is corrosion-resistant.
Description
Technical field
The utility model is related to exhaust blower technical field, specifically a kind of exhaust blower based on Coanda effect.
Background technology
Easily toxic and harmful gas is produced, it is necessary to discharge outdoor in time when various experiments are carried out in laboratory, will be divulged information
Pipeline is connected with air exhauster, it is possible to discharge the toxic gas in laboratory in time.Traditional laboratory air exhauster use from
Heart pump, vane pump etc. are as power, and bulky, noise is serious, and the blade of air exhauster is easily by harmful gas attack, and air-flow
It is unstable, easily cause ventilation shaft sharp pounding, shorten the service life of equipment.One small volume of design, small, the anti-corruption of vibrations
Erosion, steady air current, long-lived laboratory air exhauster, to improving laboratory exhaust efficiency, reduction energy consumption and ensureing experiment people
Member's is healthy significant.
Utility model content
The purpose of this utility model is to provide a stylobate in the exhaust blower of Coanda effect, to solve traditional air exhauster volume
Greatly, noise is serious, the problem of blade easily suffers erosion.
In order to solve the above technical problems, technical solution adopted in the utility model is：
A kind of exhaust blower based on Coanda effect, it includes cylindric pedestal, the row being arranged on room ventilation pipeline
The junction of solar or lunar halo, pedestal and ventilation shaft is provided with end cap, and end cap is provided with ventilation mouth, and the air draft circle is to include outer ring and interior
The hollow circular cylinder of the both ends open of circle, is provided with several dowels, pedestal and outer ring vertical connection, outer ring between outer ring and inner ring
Air inlet is provided with the junction of pedestal, inner ring is stitched with air inlet in 90 ° of side wall provided with bar.
It is preferred that, it is provided with the inner chamber of the pedestal in impeller bracket, impeller bracket and impeller, impeller and air inlet is installed
Align, the afterbody of impeller is connected with the rotating shaft of motor.
It is preferred that, the air inlet is ellipse.
It is preferred that, several ventilation mouths are along the circumferential direction placed with the end cap at equal intervals.
The course of work of the present utility model is：
Connect the rotation of electric motor starting impeller, into the gas in pedestal inner chamber in the presence of the impeller of rotation from air draft circle
Oval air inlet enters between outer ring and the inner ring of air draft circle, when being stitched by the bar of inner ring, according to the basic of Coanda effect
Principle, air-flow flows out from bar seam rapidly enters air draft circle inner chamber from the two ends of air draft circle, the toxic and harmful gas in laboratory
It is quickly discharged outdoor.
The beneficial effects of the utility model are：
（1）The utility model uses the ventilating fan for the double-round fanned without leaf, and the outer ring of ventilating fan is provided with air inlet, and inner ring is provided with
Bar is stitched, and based on Coanda effect, indoor toxic and harmful gas is quickly discharged outdoor, and the utility model has air-flow uniformly steady
Calmly, the characteristics of flow is big, significantly, noise is small for exhaust effect；
（2）Simple in construction, small volume of the present utility model, it is easily installed, it is corrosion-resistant.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is side view of the present utility model in Fig. 1；
Fig. 3 is the structural representation of inner ring in Fig. 1；
In figure：1st, sunk screw, 2, end cap, 3, motor, 4, ventilation mouth, 5, impeller bracket, 6, pedestal, 7, air draft circle, 8,
Impeller, 71, outer ring, 72, inner ring, 73, dowel, 74, air inlet, 75, bar seam.
Embodiment
A kind of exhaust blower based on Coanda effect as shown in Figure 1 to Figure 3, it includes being arranged on room ventilation pipeline
Cylindric pedestal 6, air draft circle 7, the junction of pedestal 6 and ventilation shaft is provided with end cap 2, end cap 2 along the circumferential direction wait between
Away from be placed with three ventilation mouths 4, air draft circle 7 is the hollow circular cylinder for the both ends open for including outer ring 71 and inner ring 72, outer ring
Several dowels 73, pedestal 6 and the vertical connection of outer ring 71 are provided between 71 and inner ring 72, outer ring 71 and the junction of pedestal 6 are set
There is the air inlet 74 of ellipse, inner ring 72 is with air inlet 74 in 90 ° of side wall provided with bar seam 75.
It is provided with the inner chamber of pedestal 6 in impeller bracket 5, impeller bracket 5 and impeller 8 is installed, 74 pairs of impeller 8 and air inlet
Just, the afterbody of impeller 8 is connected with the rotating shaft of motor 3.
The course of work of the present utility model is：
Connect motor 3 start impeller 8 rotate, into the gas in the inner chamber of pedestal 6 in the presence of the impeller 8 of rotation from row
The oval air inlet 74 of solar or lunar halo 7 enters between outer ring 71 and the inner ring 72 of air draft circle 7, when stitching 75 by the bar of inner ring 72, according to
The general principle of Coanda effect, air-flow flows out from bar seam 75 rapidly enters the inner chamber of air draft circle 7 from the two ends of air draft circle 7, real
The toxic and harmful gas for testing interior is quickly discharged outdoor.
The utility model has the characteristics of air-flow is uniform and stable, flow is big, and significantly, noise is small for exhaust effect；Simple in construction,
Small volume, it is easily installed, it is corrosion-resistant.
Claims (4)
1. a kind of exhaust blower based on Coanda effect, it includes the cylindric pedestal being arranged on room ventilation pipeline（6）, row
Solar or lunar halo（7）, pedestal（6）End cap is provided with the junction of ventilation shaft（2）, end cap（2）Provided with ventilation mouth（4）, its feature exists
In：The air draft circle（7）It is to include outer ring（71）And inner ring（72）Both ends open hollow circular cylinder, outer ring（71）And inner ring
（72）Between be provided with several dowels（73）, pedestal（6）With outer ring（71）Vertical connection, outer ring（71）With pedestal（6）Connection
Place is provided with air inlet（74）, inner ring（72）With air inlet（74）Stitched in 90 ° of side walls provided with bar（75）.
2. the exhaust blower according to claim 1 based on Coanda effect, it is characterised in that：The pedestal（6）Inner chamber
In be provided with impeller bracket（5）, impeller bracket（5）On impeller is installed（8）, impeller（8）With air inlet（74）Align, impeller（8）
Afterbody and motor（3）Rotating shaft be connected.
3. the exhaust blower according to claim 1 or 2 based on Coanda effect, it is characterised in that：The air inlet（74）
For ellipse.
4. the exhaust blower according to claim 3 based on Coanda effect, it is characterised in that：The end cap（2）On along circle
Circumferential direction is placed with several ventilation mouths at equal intervals（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621238362.5U CN206360899U (en) | 2016-11-18 | 2016-11-18 | Exhaust blower based on Coanda effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621238362.5U CN206360899U (en) | 2016-11-18 | 2016-11-18 | Exhaust blower based on Coanda effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206360899U true CN206360899U (en) | 2017-07-28 |
Family
ID=59372930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621238362.5U Active CN206360899U (en) | 2016-11-18 | 2016-11-18 | Exhaust blower based on Coanda effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206360899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109394018A (en) * | 2017-08-18 | 2019-03-01 | 美的集团股份有限公司 | Base assembly and cooking machine |
| CN109434109A (en) * | 2018-12-20 | 2019-03-08 | 西安增材制造国家研究院有限公司 | A kind of selective laser fusing manufacturing process based on dynamic powder cylinder |
-
2016
- 2016-11-18 CN CN201621238362.5U patent/CN206360899U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109394018A (en) * | 2017-08-18 | 2019-03-01 | 美的集团股份有限公司 | Base assembly and cooking machine |
| CN109434109A (en) * | 2018-12-20 | 2019-03-08 | 西安增材制造国家研究院有限公司 | A kind of selective laser fusing manufacturing process based on dynamic powder cylinder |
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| GR01 | Patent grant |