CN219974947U - Noise reduction mechanism of centrifugal fan for chemical industry - Google Patents
Noise reduction mechanism of centrifugal fan for chemical industry Download PDFInfo
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- CN219974947U CN219974947U CN202320818991.9U CN202320818991U CN219974947U CN 219974947 U CN219974947 U CN 219974947U CN 202320818991 U CN202320818991 U CN 202320818991U CN 219974947 U CN219974947 U CN 219974947U
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- centrifugal fan
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- 230000009467 reduction Effects 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 239000000126 substance Substances 0.000 title claims abstract description 15
- 230000035939 shock Effects 0.000 claims description 40
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 239000006096 absorbing agent Substances 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 17
- 238000013016 damping Methods 0.000 abstract description 16
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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Abstract
The utility model discloses a noise reduction mechanism of a centrifugal fan for chemical industry, which comprises a machine shell, wherein an air outlet is formed in one side wall of the machine shell, a voice coil is installed in the machine shell, a sound absorbing plate is installed in the air outlet, a vacuum cavity is formed in the side wall of the machine shell, a base is arranged at the lower end of the machine shell, a mounting plate is arranged below the base, and a convex seat is arranged at the upper end of the mounting plate. The beneficial effects are that: according to the utility model, through the design of the shell, the voice coil, the sound absorbing plate, the vacuum cavity, the base, the convex seat, the damping support rod, the damping spring and the rubber damping pad, the noise reduction mechanism of the centrifugal fan can adopt various noise reduction modes, the noise reduction effect can be further improved, and meanwhile, the vibration phenomenon of the centrifugal fan can be reduced in the running process of the centrifugal fan by the damping mechanism, so that abnormal vibration caused by external installation equipment is avoided, and the noise reduction effect of the centrifugal fan can be more ideal.
Description
Technical Field
The utility model relates to the technical field of noise reduction mechanisms, in particular to a noise reduction mechanism of a centrifugal fan for chemical industry.
Background
The centrifugal fan is a machine for increasing the pressure of gas and discharging the gas by means of input mechanical energy, and is a driven fluid machine; centrifugal fans are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced draft of boilers and industrial kilns; cooling and ventilation in air-conditioning devices and household appliances; drying and selecting grains; since centrifugal fans are prone to noise during operation, such as inflation and propulsion of wind tunnel wind sources and air cushion ships, centrifugal fan devices are often equipped with noise reduction mechanisms.
The utility model provides a mechanism of making an uproar falls in centrifugal fan of current patent number 202021300312.1, this patent technical scheme includes the spiral case storehouse, and the shape in spiral case storehouse sets up to side open-ended cavity structure, and the inside in spiral case storehouse is provided with inhales the voice coil loudspeaker voice coil, inhales the mode fixed connection through the joint between voice coil loudspeaker voice coil and the spiral case storehouse, and the air outlet inboard in spiral case storehouse is provided with the abatvoix, passes through joint mode fixed connection between abatvoix and the spiral case storehouse, and the bottom in spiral case storehouse is provided with the support, passes through welded mode fixed connection between support and the spiral case storehouse.
The technical scheme of above-mentioned patent mainly adopts structures such as having sound-absorbing ring and abatvoix to inhale the sound for centrifugal fan and falls the noise, although can satisfy normal user demand, the mode of making an uproar of falling that its adopted is comparatively single, can't further improve the noise reduction effect, and this patent technical scheme lacks damper simultaneously, because centrifugal fan takes place the vibration phenomenon easily in the operation, thereby lead to casing and external erection equipment to produce the vibration abnormal sound easily, thereby cause centrifugal fan's noise reduction effect not ideal.
Disclosure of Invention
First, the technical problem to be solved
The utility model aims to solve the technical problem of providing a noise reduction mechanism of a centrifugal fan for chemical industry, which adopts various noise reduction modes and has a damping effect, aiming at the current state of the art.
(II) technical scheme
The utility model is realized by the following technical scheme: the utility model provides a noise reduction mechanism of a centrifugal fan for chemical industry, which comprises a machine shell, wherein an air outlet is formed in one side wall of the machine shell, a sound absorbing coil is installed in the machine shell, a sound absorbing plate is installed in the air outlet, a vacuum cavity is formed in the side wall of the machine shell, a base is arranged at the lower end of the machine shell, a mounting plate is arranged below the base, a boss is arranged at the upper end of the mounting plate, a cavity is formed in the boss, a damping support is uniformly distributed at the bottom end in the cavity, a damping support rod is installed in the middle part in the damping support rod, a damping spring is installed at the outer side of the damping support rod, and rubber damping pads are uniformly distributed on the inner side wall of the cavity.
Further, the air outlet is formed in the casing, and the casing is connected with the sound absorbing ring and the sound absorbing plate through clamping grooves.
Through adopting above-mentioned technical scheme, inhale the sound circle with inhale the sound board all with inhale voice coil loudspeaker voice coil and inhale the sound board matter structure unanimity in the mechanism of making an uproar of falling in centrifugal fan of patent number 202021300312.1.
Further, the vacuum chamber and the base are both formed on the housing.
By adopting the technical scheme, the vacuum cavity can reduce the outward transmission effect of noise.
Further, the boss is formed on the mounting plate, and the cavity is formed on the boss.
By adopting the technical scheme, the mounting plate can be mounted and connected with external connecting equipment.
Further, the boss and the base are connected with the shock absorption support through the clamping groove, and the shock absorption support is connected with the shock absorption support rod and the shock absorption spring through the clamping groove.
By adopting the technical scheme, the damping effect can be provided for the shell.
Further, the boss is bonded with the rubber shock pad, and the rubber shock pad has four.
By adopting the technical scheme, the rubber shock pad can ensure the shock absorption stability of the base.
(III) beneficial effects
Compared with the prior art, the utility model has the following beneficial effects:
in order to solve the problem that the noise reduction effect of the centrifugal fan is not ideal because the shell and external installation equipment easily generate vibration abnormal sound due to the fact that the centrifugal fan easily generates vibration phenomenon in the operation process, the noise reduction mechanism mainly adopts structures such as a voice coil and a sound absorbing plate to absorb sound for the centrifugal fan, and can meet the normal use requirements, but the noise reduction mode adopted by the noise reduction mechanism is single and cannot further improve the noise reduction effect, and meanwhile, the noise reduction mechanism is provided with the vibration reduction mechanism, so that the noise reduction effect of the centrifugal fan can be more ideal due to the fact that the vibration abnormal sound is generated between the shell and the external installation equipment easily generated by the centrifugal fan.
Drawings
FIG. 1 is a schematic structural view of a noise reduction mechanism of a centrifugal fan for chemical industry;
fig. 2 is a cross-sectional view of a boss in a noise reduction mechanism of a centrifugal fan for chemical industry according to the present utility model.
The reference numerals are explained as follows:
1. a housing; 2. an air outlet; 3. a voice coil; 4. a sound absorbing panel; 5. a vacuum chamber; 6. a base; 7. a mounting plate; 8. a boss; 9. a cavity; 10. a damping support; 11. a shock absorption strut; 12. a damping spring; 13. rubber shock pad.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1-2, the noise reduction mechanism of the centrifugal fan for chemical industry in the embodiment comprises a casing 1, wherein an air outlet 2 is formed in one side wall of the casing 1, a voice coil 3 is installed in the casing 1, a sound absorbing plate 4 is installed in the air outlet 2, a vacuum cavity 5 is formed in the side wall of the casing 1, a base 6 is arranged at the lower end of the casing 1, a mounting plate 7 is arranged below the base 6, a boss 8 is arranged at the upper end of the mounting plate 7, a cavity 9 is formed in the boss 8, shock absorbing supports 10 are uniformly distributed at the inner bottom end of the cavity 9, a shock absorbing support rod 11 is installed in the middle part in the shock absorbing support 10, a shock absorbing spring 12 is installed at the outer side of the shock absorbing support rod 11, and rubber shock absorbing pads 13 are uniformly distributed on the inner side wall of the cavity 9, wherein, a plurality of through-holes have been seted up to the junction of inhaling sound circle 3 and air outlet 2, in order to the circulation of air, the inboard of inhaling sound circle 3 is provided with the sound absorbing strip, the sound absorbing strip is equidistant distribution, can absorb the fan and produce the noise when high-speed pivoted, the honeycomb hole has been seted up in the outside of abatvoix 4, honeycomb hole evenly distributed, can absorb the noise that air flow produced in air outlet 2 departments, vacuum chamber 5 can reduce the outside propagation effect of noise, shock attenuation branch 11 and damping spring 12 in the shock attenuation support 10 can fully provide the shock attenuation effect for casing 1, avoid the vibration abnormal sound because of centrifugal fan's work produces.
As shown in fig. 1-2, in this embodiment, the air outlet 2 is formed on the casing 1, the sound absorbing ring 3 and the sound absorbing plate 4 are all connected through clamping grooves, and the vacuum cavity 5 and the base 6 are all formed on the casing 1, so as to improve the overall noise reduction effect of the noise reduction mechanism.
As shown in fig. 1-2, in this embodiment, the boss 8 is formed on the mounting plate 7, the cavity 9 is formed on the boss 8, the boss 8 and the base 6 are connected with the shock mount 10 through the clamping grooves, the shock mount 10 is connected with the shock strut 11 and the shock spring 12 through the clamping grooves, the boss 8 is bonded with the rubber shock pads 13, and the number of the rubber shock pads 13 is four, so that the overall shock absorbing effect of the noise reduction mechanism is ensured.
The specific implementation process of this embodiment is as follows: when using, the staff can install mounting panel 7 and external connection equipment to install centrifugal fan in casing 1, when centrifugal fan is at the operation, inhale sound circle 3 and abatvoix 4 and can absorb the noise of centrifugal fan production and fall the noise, vacuum cavity 5 can reduce the outside propagation effect of noise simultaneously, further improve the noise reduction effect of mechanism of making an uproar, simultaneously, shock attenuation branch 11 and damping spring 12 in the shock attenuation support 10 can fully provide the shock attenuation effect for casing 1, avoid the vibration abnormal sound because of centrifugal fan's work produces, rubber shock pad 13 can ensure the stability of base 6.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a mechanism of making an uproar falls in centrifugal fan for chemical industry which characterized in that: including casing (1), air outlet (2) have been seted up on the lateral wall of casing (1), install in casing (1) and inhale voice coil loudspeaker voice coil (3), install abatvoix (4) in air outlet (2), vacuum chamber (5) have been seted up in the lateral wall of casing (1), the lower extreme of casing (1) is provided with base (6), the below of base (6) is provided with mounting panel (7), the upper end of mounting panel (7) is provided with boss (8), cavity (9) have been seted up in boss (8), mid-mounting has shock absorber support (10) in cavity (9) in the bottom equipartition, shock absorber spring (12) are installed in the outside of shock absorber support (11), the equipartition has rubber shock pad (13) on the inside wall of cavity (9).
2. The noise reduction mechanism of a centrifugal fan for chemical industry according to claim 1, wherein: the air outlet (2) is formed in the casing (1), and the casing (1), the sound absorbing ring (3) and the sound absorbing plate (4) are connected through clamping grooves.
3. The noise reduction mechanism of a centrifugal fan for chemical industry according to claim 1, wherein: the vacuum cavity (5) and the base (6) are both formed on the shell (1).
4. The noise reduction mechanism of a centrifugal fan for chemical industry according to claim 1, wherein: the boss (8) is formed on the mounting plate (7), and the cavity (9) is formed on the boss (8).
5. The noise reduction mechanism of a centrifugal fan for chemical industry according to claim 1, wherein: the boss (8) and the base (6) are connected with the shock absorption support (10) through clamping grooves, and the shock absorption support (10) is connected with the shock absorption support rod (11) and the shock absorption spring (12) through clamping grooves.
6. The noise reduction mechanism of a centrifugal fan for chemical industry according to claim 1, wherein: the boss (8) is adhered to the rubber shock pad (13), and the number of the rubber shock pad (13) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320818991.9U CN219974947U (en) | 2023-04-13 | 2023-04-13 | Noise reduction mechanism of centrifugal fan for chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320818991.9U CN219974947U (en) | 2023-04-13 | 2023-04-13 | Noise reduction mechanism of centrifugal fan for chemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219974947U true CN219974947U (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320818991.9U Active CN219974947U (en) | 2023-04-13 | 2023-04-13 | Noise reduction mechanism of centrifugal fan for chemical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219974947U (en) |
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2023
- 2023-04-13 CN CN202320818991.9U patent/CN219974947U/en active Active
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