CN214331012U - Noise reduction mechanism for boiler fan - Google Patents
Noise reduction mechanism for boiler fan Download PDFInfo
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- CN214331012U CN214331012U CN202120165701.6U CN202120165701U CN214331012U CN 214331012 U CN214331012 U CN 214331012U CN 202120165701 U CN202120165701 U CN 202120165701U CN 214331012 U CN214331012 U CN 214331012U
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- boiler fan
- silencer
- air inlet
- bend
- noise reduction
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Abstract
The utility model discloses a mechanism of making an uproar falls in boiler fan, including boiler fan, bellows, bend, silencer, air inlet sleeve and wave formula sound-proof piece, the air intake has been seted up to boiler fan one side, air intake one side is connected with bellows, the bellows top is connected with the bend, bend one end is connected with the silencer, silencer air inlet end is connected with the air inlet sleeve, the inside welding of transversely arranging of silencer is equipped with wave formula sound-proof piece, the vertical book formula sound-proof piece of having arranged of welding of air inlet sleeve is established. The whole boiler fan noise reduction mechanism is good in aerodynamic energy acoustics, reasonable in structure and convenient to install, and is a large-air-volume resistive multi-chamber silencer, so that enough noise reduction volume is guaranteed within a wide frequency band range, and the whole boiler fan noise reduction mechanism is high in practicability.
Description
Technical Field
The utility model relates to a technical field of making an uproar falls in the fan, in particular to mechanism of making an uproar falls in boiler fan.
Background
When the fan runs at a high speed, the air flow generates large noise in the process of passing through the fan, so that the environmental pollution is caused, the health of workers and surrounding people is also seriously influenced, the noise standard of industrial enterprises cannot exceed 90 decibels, and the noise of the fan for boiler operation is usually as high as 100 and 120 decibels, and even higher.
The fan in the existing ventilation equipment generally restrains the fan rotation noise through the optimization design of the fan type and the blade shape, but the ideal use requirement is still difficult to achieve by only depending on the optimization design of the fan. For this reason, we propose a noise reduction mechanism for a boiler fan.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides the mechanism of making an uproar falls in boiler fan can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
noise reduction mechanism for boiler fan, including boiler fan, bellows, bend, silencer, air inlet cover and wave formula sound blocking piece, the air intake has been seted up to boiler fan one side, air intake one side is connected with bellows, the bellows top is connected with the bend, bend one end is connected with the silencer, silencer air inlet end is connected with the air inlet cover, the inside welding of transversely arranging of silencer is equipped with wave formula sound blocking piece, air inlet cover is vertical to be welded and is established the folded plate formula sound blocking piece of having arranged.
Furthermore, the corner distributes vertically to weld and is equipped with triangle sound-proof piece in the bend.
Furthermore, airflow holes are distributed and penetrated on the wave-shaped sound-blocking sheet and the folded plate-type sound-blocking sheet.
Furthermore, the air inlet, the air box, the bend, the silencer and the air inlet sleeve are all connected through flange plates.
Furthermore, an air outlet is formed in the bottom of the boiler fan.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the noise reduction device has the advantages that noise reduction treatment is carried out on airflow entering the boiler fan sequentially through the bent channel, the silencer and the air inlet sleeve, through the arrangement of the folded plate type sound-blocking sheet in the air inlet sleeve, passing airflow can be effectively impacted on the folded plate type sound-blocking sheet, the airflow is subjected to friction and viscous resistance, sound energy is converted into heat energy to be dissipated, and accordingly the purposes of noise reduction are achieved.
2. Through the setting of triangle resistance piece in the bend, can effectively weaken the layering to the distinguished and admirable that gets into in the bend, realize making an uproar, when making boiler fan work induced draft, the air current noise of its air intake reduces greatly, and whole boiler fan falls the mechanism of making an uproar aerodynamic energy acoustics good, and is rational in infrastructure, and the installation of being convenient for is a big air volume resistance nature multichamber formula muffler, thereby has guaranteed to have sufficient noise elimination volume in broad frequency band within range, has higher practicality.
Drawings
Fig. 1 is the utility model discloses the overall structure schematic diagram of the mechanism of making an uproar falls in boiler fan.
Fig. 2 is the utility model discloses the silencer cross-sectional structure sketch map of the mechanism of making an uproar falls in boiler fan.
Fig. 3 is the utility model discloses boiler fan falls bend owner of mechanism of making an uproar and looks cross-sectional structure sketch map.
Fig. 4 is the utility model discloses the main structure sketch map of looking is hindered to folded plate formula of mechanism of making an uproar that falls in boiler fan.
In the figure: 1. a boiler fan; 2. an air inlet; 3. an air box; 4. a bend; 5. a muffler; 6. an air inlet sleeve; 7. a wave-shaped sound-blocking sheet; 8. a baffle type sound-proof sheet; 9. a triangular sound-blocking sheet; 10. an airflow aperture; 11. an air outlet.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1-4, the noise reduction mechanism of the boiler fan comprises a boiler fan 1, an air box 3, a bend 4, a silencer 5, an air inlet sleeve 6 and a wave-shaped noise-proof sheet 7, wherein an air inlet 2 is formed in one side of the boiler fan 1, the air box 3 is connected to one side of the air inlet 2, the top of the air box 3 is connected with the bend 4, one end of the bend 4 is connected with the silencer 5, the air inlet end of the silencer 5 is connected with the air inlet sleeve 6, the wave-shaped noise-proof sheet 7 is arranged in the silencer 5 in a transverse arrangement mode, and the folded plate-shaped noise-proof sheet 8 is arranged in the air inlet sleeve 6 in a vertical welding mode.
Wherein, corner vertical welding that distributes in bend 4 is equipped with triangle sound-proof piece 9.
In this embodiment, as shown in fig. 2 and 3, the triangular sound-blocking sheet 9 in the curved conduit 4 can effectively weaken the wind current entering the curved conduit 4 in a layered manner, thereby reducing noise.
Wherein, airflow holes 10 are distributed and penetrated on the wave type sound-proof sheet 7 and the folded plate type sound-proof sheet 8.
In this embodiment, as shown in fig. 2 and 4, the wavy sound-blocking sheet 7 and the folded plate type sound-blocking sheet 8, which are provided with the airflow holes 10, have a good porous sound-absorbing effect.
The air inlet 2, the air box 3, the bend 4, the silencer 5 and the air inlet sleeve 6 are connected through flange plates.
Wherein, the bottom of the boiler fan 1 is provided with an air outlet 11.
It should be noted that, the utility model is a noise reduction mechanism of a boiler fan, when working, personnel can carry out noise reduction treatment on the air flow entering the boiler fan 1 through the bend 4, the silencer 5 and the air inlet sleeve 6 in sequence, through the arrangement of the folded plate type noise-proof sheet 8 in the air inlet sleeve 6, the passing wind flow can be effectively impacted on the baffle type sound-proof sheet 8, the wind flow is subjected to friction and viscous resistance, the sound energy is converted into heat energy to be dissipated, thereby achieving the purpose of silencing and reducing sound, utilizing the abrupt interface on the wave-shaped sound-resisting sheet 7 to reflect and interfere sound through the arrangement of the wave-shaped sound-resisting sheet 7 in the silencer 5, therefore, the purposes of noise elimination and noise reduction are achieved, the air flow entering the bend 4 can be effectively weakened in a layered mode through the arrangement of the triangular noise-proof sheet 9 in the bend 4, noise reduction is achieved, and the air flow noise of the air inlet of the boiler fan 1 is greatly reduced when the boiler fan works for air suction.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. Noise reduction mechanism of boiler fan, including boiler fan (1), bellows (3), bend (4), silencer (5), air inlet cover (6) and wave formula sound-proof piece (7), its characterized in that, air intake (2) have been seted up to boiler fan (1) one side, air intake (2) one side is connected with bellows (3), bellows (3) top is connected with bend (4), bend (4) one end is connected with silencer (5), silencer (5) air inlet end is connected with air inlet cover (6), the inside welding of transversely arranging of silencer (5) is equipped with wave formula sound-proof piece (7), air inlet cover (6) vertical welding is established the folded plate formula of having arranged and is hindered sound-proof piece (8).
2. The boiler fan noise reduction mechanism of claim 1, wherein: the corner distributes vertically to weld in bend (4) is equipped with triangle sound-proof piece (9).
3. The boiler fan noise reduction mechanism of claim 1, wherein: airflow holes (10) are distributed and penetrated on the wave type sound-proof sheet (7) and the folded plate type sound-proof sheet (8).
4. The boiler fan noise reduction mechanism of claim 1, wherein: the air inlet (2), the air box (3), the bend (4), the silencer (5) and the air inlet sleeve (6) are connected through flange plates.
5. The boiler fan noise reduction mechanism of claim 1, wherein: an air outlet (11) is formed in the bottom of the boiler fan (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120165701.6U CN214331012U (en) | 2021-01-21 | 2021-01-21 | Noise reduction mechanism for boiler fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120165701.6U CN214331012U (en) | 2021-01-21 | 2021-01-21 | Noise reduction mechanism for boiler fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214331012U true CN214331012U (en) | 2021-10-01 |
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ID=77905838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120165701.6U Active CN214331012U (en) | 2021-01-21 | 2021-01-21 | Noise reduction mechanism for boiler fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214331012U (en) |
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2021
- 2021-01-21 CN CN202120165701.6U patent/CN214331012U/en active Active
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