CN211343417U - Counter-rotating type pipeline ventilation device - Google Patents
Counter-rotating type pipeline ventilation device Download PDFInfo
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- CN211343417U CN211343417U CN201922134506.2U CN201922134506U CN211343417U CN 211343417 U CN211343417 U CN 211343417U CN 201922134506 U CN201922134506 U CN 201922134506U CN 211343417 U CN211343417 U CN 211343417U
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- pipeline
- ventilation device
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Abstract
The utility model discloses a disrotatory formula pipeline ventilation unit, it includes pipeline, first fan, second fan, and first fan includes a plurality of first blades, and the second fan includes a plurality of second blades, its characterized in that: the first blade and the second blade have different rotating directions, and the radial outer width of the first blade and/or the second blade is larger than the radial inner width of the first blade and/or the second blade; the number of the first blades is different from that of the second blades, and the number of the first blades is smaller than that of the second blades. This counter-rotating pipeline ventilation device can increase pipeline flow, air-out pressure is stable, the increase amount of wind, noise reduction.
Description
Technical Field
The utility model relates to a pipeline ventilation technical field, concretely relates to disrotatory formula pipeline ventilation unit.
Background
The axial flow fan is widely applied to various pipeline ventilation systems and used for ventilation and air exchange of spaces such as workshops, laboratories, kitchens and the like. However, the existing pipeline ventilation device has the problems of small flow and unstable pressure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of existence among the prior art, providing a to rotating type pipeline ventilation unit, this to rotating type pipeline ventilation unit can increase pipeline flow, air-out pressure stability.
In order to realize the purpose, the utility model discloses a technical scheme be:
a counter-rotating type pipeline ventilation device comprises a pipeline (1), a first fan and a second fan, wherein the first fan and the second fan are arranged in the pipeline, the first fan comprises a first blade (2), a first hub (3), a first rotating shaft (4), a first motor (5) and a first guide vane (6), a plurality of first blades are arranged on the periphery of the first hub, the first hub is connected with the first motor through the first rotating shaft, and the first motor is connected with the inner wall of the pipeline through the first guide vanes; the second fan includes second blade (7), second wheel hub (8), second pivot (9), second motor (10), second stator (11), and second wheel hub periphery is equipped with a plurality of second blades, and second wheel hub is connected with the second motor through the second pivot, and the second motor is connected with the pipeline inner wall through a plurality of second stator, and first blade is close to the setting with the second blade mutually, and the setting is kept away from with the second motor mutually to first motor, its characterized in that: the first blade and the second blade have different rotating directions, and the radial outer width of the first blade and/or the second blade is larger than the radial inner width of the first blade and/or the second blade.
Further, the number of the first blades is different from that of the second blades, and the number of the first blades is smaller than that of the second blades.
Further, the number of the first blades is 3-6, and the number of the second blades is 5-12.
Further, the first vane has a radially outer width h1 that is greater than a radially outer width h2 of the second vane.
Further, h1 ═ (1.1-2.1) h 2.
Further, h1 ═ (1.5-1.7) h 2.
Furthermore, the rotating speed of the first motor and/or the second motor is adjustable, and the first motor and the second motor rotate at the same speed or different speeds.
Further, the material of the first blade and/or the second blade is thermoplastic plastics or aluminum alloy.
This counter-rotating type pipeline ventilation device can increase pipeline flow, air-out pressure is stable to reduce the turbulent flow impact in the region between first blade and the second blade.
Drawings
FIG. 1 is a schematic structural view of a counter-rotating type pipeline ventilation device of the present invention;
fig. 2 is a schematic view of the structure of the impeller of the present invention.
In the figure: pipeline 1, first blade 2, first wheel hub 3, first pivot 4, first motor 5, first stator 6, second blade 7, second wheel hub 8, second pivot 9, second motor 10, second stator 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, a counter-rotating type pipeline ventilation device includes a pipeline 1, a first fan and a second fan, the first fan and the second fan are disposed in the pipeline 1, the first fan includes a first blade 2, a first hub 3, a first rotating shaft 4, a first motor 5 and a first guide vane 6, the periphery of the first hub 3 is provided with a plurality of first blades 2, the first hub 3 is connected with the first motor 5 through the first rotating shaft 4, and the first motor 5 is connected with the inner wall of the pipeline 1 through the plurality of first guide vanes 6; the second fan includes second blade 7, second wheel hub 8, second pivot 9, second motor 10, second stator 11, second wheel hub 8 periphery is equipped with a plurality of second blades 7, second wheel hub 8 is connected with second motor 10 through second pivot 9, second motor 10 is connected with 1 inner wall of pipeline through a plurality of second stator 11, first blade 2 sets up with second blade 7 is adjacent closely, first motor 5 keeps away from the setting with second motor 10 mutually, its characterized in that: the first blade 2 and the second blade 7 have different rotation directions, and the radial outer width of the first blade 2 and/or the second blade 7 is larger than the radial inner width thereof.
The first blade 2 is diametrically opposed to the second blade 7 and the first fan is repeated with the second fan axis of rotation.
As shown in fig. 2, the number of the first blades 2 is different from that of the second blades 7, specifically, the number (e.g. 3) of the first blades 2 is smaller than that (e.g. 5, 6 or 7) of the second blades 7, and the blade structural design can effectively increase the flow rate of the pipeline and stabilize the outlet air pressure.
The radial outside width h1 of the first blade 2 is greater than the radial outside width h2 of the second blade 7, specifically, h1 is (1.1-2.1) h2, preferably, 1.5-1.7, and the blade structure design can further increase the duct flow rate, stabilize the outlet air pressure, and reduce the turbulent impact in the region between the first blade and the second blade.
Further, the rotating speed of the first motor 5 and/or the second motor 10 is adjustable, and the first motor 5 and the second motor 10 rotate at the same speed or different speeds.
The material of the first blade 2 and/or the second blade 7 is a thermoplastic or an aluminium alloy.
This counter-rotating type pipeline ventilation device can increase pipeline flow, air-out pressure is stable to reduce the turbulent flow impact in the region between first blade and the second blade.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations may be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (8)
1. A counter-rotating type pipeline ventilation device comprises a pipeline (1), a first fan and a second fan, wherein the first fan and the second fan are arranged in the pipeline, the first fan comprises a first blade (2), a first hub (3), a first rotating shaft (4), a first motor (5) and a first guide vane (6), a plurality of first blades are arranged on the periphery of the first hub, the first hub is connected with the first motor through the first rotating shaft, and the first motor is connected with the inner wall of the pipeline through the first guide vanes; the second fan includes second blade (7), second wheel hub (8), second pivot (9), second motor (10), second stator (11), and second wheel hub periphery is equipped with a plurality of second blades, and second wheel hub is connected with the second motor through the second pivot, and the second motor is connected with the pipeline inner wall through a plurality of second stator, and first blade is close to the setting with the second blade mutually, and the setting is kept away from with the second motor mutually to first motor, its characterized in that: the first blade and the second blade have different rotating directions, and the radial outer width of the first blade and/or the second blade is larger than the radial inner width of the first blade and/or the second blade.
2. A counter-rotating ducted ventilation device according to claim 1, wherein the number of first vanes is different from the number of second vanes, and the number of first vanes is smaller than that of second vanes.
3. A counter-rotating ducted ventilation device as claimed in claim 2, wherein the number of said first vanes is 3 to 6 and the number of said second vanes is 5 to 12.
4. A counter-rotating ducted ventilation device as claimed in claim 2, wherein the radially outer width h1 of the first vane is greater than the radially outer width h2 of the second vane.
5. A counter-rotating duct ventilation device as claimed in claim 4, wherein h1 is (1.1-2.1) h 2.
6. A counter-rotating duct ventilation device as claimed in claim 5, wherein h1 is (1.5-1.7) h 2.
7. A counter-rotating type ventilation device for a pipeline as claimed in claim 2, wherein the rotation speed of the first motor and/or the second motor is adjustable, and the first motor and the second motor rotate at the same speed or at different speeds.
8. A counter-rotating ducted ventilation device according to claim 2, wherein the material of the first and/or second vanes is a thermoplastic or aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922134506.2U CN211343417U (en) | 2019-12-03 | 2019-12-03 | Counter-rotating type pipeline ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922134506.2U CN211343417U (en) | 2019-12-03 | 2019-12-03 | Counter-rotating type pipeline ventilation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343417U true CN211343417U (en) | 2020-08-25 |
Family
ID=72136932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922134506.2U Expired - Fee Related CN211343417U (en) | 2019-12-03 | 2019-12-03 | Counter-rotating type pipeline ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343417U (en) |
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2019
- 2019-12-03 CN CN201922134506.2U patent/CN211343417U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200825 Termination date: 20211203 |