CN214998324U - Low-noise tunnel fan - Google Patents
Low-noise tunnel fan Download PDFInfo
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- CN214998324U CN214998324U CN202120588360.3U CN202120588360U CN214998324U CN 214998324 U CN214998324 U CN 214998324U CN 202120588360 U CN202120588360 U CN 202120588360U CN 214998324 U CN214998324 U CN 214998324U
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- urceolus
- inner tube
- wall
- mounting panel
- aluminium lamination
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Abstract
The utility model provides a low noise tunnel fan belongs to fan equipment technical field, including the urceolus, be provided with the mounting panel in the urceolus, install the inner tube on the mounting panel, inner tube and the coaxial setting of urceolus, this inner tube one side is the open-type air intake, the opposite side is closed design, the air intake is connected and communicates with the mounting panel, evenly be provided with a plurality of air-out direction leaves on the inner tube section of thick bamboo wall, be provided with the impeller in this inner tube, motor output shaft stretches into the inner tube from the blind end and links to each other with the impeller, the both ends of urceolus are provided with the flange, be used for being connected with air pipe, this urceolus inner wall is provided with the puigging, the puigging includes outer foam aluminium lamination and is located the cotton layer of glass between foam aluminium lamination and the urceolus inner wall, evenly be provided with a plurality of arch sound absorption guiding holes on the foam aluminium lamination. The utility model has the advantages that: has the advantages of simple structure and good noise reduction effect.
Description
Technical Field
The utility model belongs to the technical field of fan equipment, especially, relate to a low noise tunnel fan.
Background
The tunnel fan is widely applied to tunnels such as water conservancy dam engineering, highways, railways, subways and the like. When the tunnel fan is used, the noise is large, particularly, the pneumatic noise is difficult to reduce, and the tunnel fan has great influence on constructors and surrounding residents.
Disclosure of Invention
The to-be-solved problem of the utility model is to provide a simple structure, effectual low noise tunnel fan of noise reduction.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a low noise tunnel fan, includes the urceolus, be provided with the mounting panel in the urceolus, install the inner tube on the mounting panel, inner tube and the coaxial setting of urceolus, this inner tube one side is the open-type air intake, and the opposite side is closed design, the air intake is connected and is linked together with the mounting panel, evenly be provided with a plurality of air-out guide vanes on the inner tube section of thick bamboo wall, be provided with the impeller in this inner tube, motor output shaft stretches into the inner tube from the blind end and links to each other with the impeller, the both ends of urceolus are provided with the flange for be connected with air pipe, and this urceolus inner wall is provided with the puigging, the puigging includes outer foam aluminium lamination and is located the cotton layer of glass between foam aluminium lamination and the urceolus inner wall, evenly be provided with a plurality of arch sound absorption guiding holes on the foam aluminium lamination.
The ventilation direction of the arched sound absorption guide hole is consistent with the airflow direction.
The motor is a totally enclosed motor.
The thickness of the sound insulation layer is 50 mm.
By adopting the technical proposal, the utility model has simple structure, forms airflow through the rotation of the impeller, after the airflow enters from the open-type air inlet of the inner cylinder, the air outlet guide vanes on the wall of the inner cylinder uniformly disperse to play a role of air guiding, thereby avoiding the pneumatic noise generated by disordered airflow, meanwhile, the inner wall of the outer cylinder is provided with a sound insulation layer which comprises a foam aluminum layer on the outer layer and a glass wool layer positioned between the foam aluminum layer and the inner wall of the outer cylinder, and a plurality of arched sound absorption guide holes are uniformly arranged on the foam aluminum layer, the whole weight of the layered structure is lighter, the internal fibers of the glass wool are fluffy and staggered, a large number of tiny pores exist, the layered structure is a typical porous sound absorption material, the layered structure has good sound absorption characteristics, and the layered structure is matched with the high specific stiffness and the high sound insulation of the foam aluminum layer, is assisted by the additional arched sound absorption guide holes, and can realize noise elimination while guiding.
The utility model has the advantages that: has the advantages of simple structure and good noise reduction effect.
Drawings
The advantages and mode of realisation of the invention will become more apparent hereinafter by describing in detail the invention with reference to the attached drawings, wherein the content shown in the drawings is only for explaining the invention, without constituting any limitation to the meaning of the invention, in which:
FIG. 1 is a schematic structural diagram of the present invention
FIG. 2 is a schematic structural view of the sound insulation layer of the present invention
In the figure:
1. outer cylinder 2, mounting plate 3 and inner cylinder
4. Air inlet 5, air outlet guide vane 6 and impeller
7. Sound insulation layer 8, foamed aluminum layer 9 and glass wool layer
10. Arched sound absorption guide hole 11 and motor
Detailed Description
As shown in figures 1 and 2, the utility model relates to a low-noise tunnel fan, which comprises an outer cylinder 1, a mounting plate 2 is arranged in the outer cylinder 1, an inner cylinder 3 is arranged on the mounting plate 2, the inner cylinder 3 is coaxially arranged with the outer cylinder 1, one side of the inner cylinder 3 is an open air inlet 4, the other side is a closed design, the air inlet 4 is connected and communicated with the mounting plate 2, a plurality of air outlet guide vanes 5 are uniformly arranged on the cylinder wall of the inner cylinder 3, an impeller 6 is arranged in the inner cylinder 3, an output shaft of a motor 11 extends into the inner cylinder 3 from a closed end to be connected with the impeller 6, flanges are arranged at two ends of the outer cylinder 1 and are used for being connected with a ventilation pipeline, a sound insulation layer 7 is arranged on the inner wall of the outer cylinder 1, the sound insulation layer 7 comprises an outer foam aluminum layer 8 and a glass wool layer 9 positioned between the foam aluminum layer 8 and the inner wall of the outer cylinder 1, a plurality of arch sound absorption guide holes 10 are uniformly arranged on the foam aluminum layer 8, the arch sound absorption guide holes 10 have the same ventilation direction as the airflow direction, the motor 11 is a totally enclosed motor, and the thickness of the sound insulation layer 7 is 50 mm.
The utility model has simple structure, the air flow is formed by the rotation of the impeller 6, after the air flow enters from the open-type air inlet 4 of the inner cylinder 3, the air outlet guide vanes 5 on the wall of the inner cylinder 3 are evenly dispersed, the air outlet guide vanes 5 play a role of air guiding, pneumatic noise generated by disordered airflow is avoided, meanwhile, the inner wall of the outer cylinder 1 is provided with a sound insulation layer 7, the sound insulation layer 7 comprises a foam aluminum layer 8 on the outer layer and a glass wool layer 9 positioned between the foam aluminum layer 8 and the inner wall of the outer cylinder 1, a plurality of arched sound absorption guide holes 10 are uniformly arranged on the foam aluminum layer 8, the whole weight of the layered structure is light, the internal fibers of the glass wool are fluffy and staggered, a large number of tiny pores exist, the layered structure is a typical porous sound absorption material, the layered structure has good sound absorption characteristics, and the layered structure is matched with the high specific stiffness and the high sound insulation of the foam aluminum layer 8, and can realize noise elimination while guiding by the aid of the additional arched sound absorption guide holes 10.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (4)
1. The utility model provides a low noise tunnel fan which characterized in that: including the urceolus, be provided with the mounting panel in the urceolus, install the inner tube on the mounting panel, inner tube and the coaxial setting of urceolus, this inner tube one side is the open-type air intake, and the opposite side is closed design, the air intake is connected and communicates with the mounting panel, evenly be provided with a plurality of air-out direction leaves on the inner tube section of thick bamboo wall, be provided with the impeller in this inner tube, motor output shaft stretches into the inner tube from the blind end and links to each other with the impeller, the both ends of urceolus are provided with the flange for be connected with air pipe, this urceolus inner wall is provided with the puigging, the puigging includes outer foam aluminium lamination and the glass cotton layer that is located between foam aluminium lamination and the urceolus inner wall, evenly be provided with a plurality of arch sound absorption guiding holes on the foam aluminium lamination.
2. The low noise tunnel fan of claim 1, wherein: the ventilation direction of the arched sound absorption guide hole is consistent with the airflow direction.
3. The low noise tunnel fan of claim 1, wherein: the motor is a totally enclosed motor.
4. The low noise tunnel fan of claim 1, wherein: the thickness of the sound insulation layer is 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120588360.3U CN214998324U (en) | 2021-03-23 | 2021-03-23 | Low-noise tunnel fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120588360.3U CN214998324U (en) | 2021-03-23 | 2021-03-23 | Low-noise tunnel fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214998324U true CN214998324U (en) | 2021-12-03 |
Family
ID=79161975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120588360.3U Active CN214998324U (en) | 2021-03-23 | 2021-03-23 | Low-noise tunnel fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214998324U (en) |
-
2021
- 2021-03-23 CN CN202120588360.3U patent/CN214998324U/en active Active
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