CN220285866U - Frequency division rate noise reduction generator set - Google Patents
Frequency division rate noise reduction generator set Download PDFInfo
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- CN220285866U CN220285866U CN202321978695.1U CN202321978695U CN220285866U CN 220285866 U CN220285866 U CN 220285866U CN 202321978695 U CN202321978695 U CN 202321978695U CN 220285866 U CN220285866 U CN 220285866U
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- cabinet body
- air inlet
- noise reduction
- generator set
- frequency division
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- 230000009467 reduction Effects 0.000 title claims abstract description 27
- 230000000694 effects Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000003584 silencer Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a frequency division rate noise reduction generator set in the technical field of mute generators, which comprises: the cabinet body consists of a bottom plate, a top plate, a cabinet door and two side surrounding pieces; at least one motor air inlet hole and at least one power air inlet hole are formed in the bottom plate; at least two sound-proof covers which are arranged in the cabinet body and respectively cover an air inlet hole or a power air inlet hole of the motor; at least one generator arranged in the cabinet body; the wedge sponges are arranged in the cabinet body and positioned on the inner wall of the cabinet body and around the generator; at least one low-frequency muffler is arranged in the cabinet body. The utility model has the advantages that: the noise reduction performance of the generator set is greatly improved.
Description
Technical Field
The utility model relates to the technical field of mute generators, in particular to a frequency division rate noise reduction generator set.
Background
The generator set is complete mechanical equipment for converting other forms of energy into electric energy, and consists of a power system, a control system, a silencing system, a damping system and an exhaust system, and is driven by a water turbine, a steam turbine, a diesel engine or other power machines to convert the energy generated by water flow, air flow, fuel combustion and the like into mechanical energy to be transmitted to a generator, and then the generator converts the mechanical energy into electric energy to be output to electric equipment for use.
However, the noise reduction system of the conventional generator set consists of a flat sponge and a common muffler, and the flat sponge has a good sound absorption effect on high-frequency noise, the middle-low-frequency noise effect is general, and the common muffler cannot effectively reduce the low-frequency noise, so that the noise of a low-frequency section in the conventional generator set is higher, and the whole noise of the generator set is influenced.
Therefore, how to provide a frequency division rate noise reduction generator set to achieve the improvement of the noise reduction performance of the generator set becomes a technical problem to be solved urgently.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a frequency division rate noise reduction generator set, which realizes the improvement of the noise reduction performance of the generator set.
The utility model is realized in the following way: a frequency division rate noise reduction genset comprising:
the cabinet body consists of a bottom plate, a top plate, a cabinet door and two side surrounding pieces; at least one motor air inlet hole and at least one power air inlet hole are formed in the bottom plate;
at least two sound-proof covers which are arranged in the cabinet body and respectively cover an air inlet hole or a power air inlet hole of the motor;
at least one generator arranged in the cabinet body;
the wedge sponges are arranged in the cabinet body and positioned on the inner wall of the cabinet body and around the generator;
at least one low-frequency muffler is arranged in the cabinet body.
Further, the cabinet door is rotatably connected with the side surrounding piece.
Further, the motor air inlet and the power air inlet are respectively positioned at two sides of the bottom plate.
Further, the sound insulation cover is a U-shaped cover.
Further, the wedge sponge includes:
a sponge base;
the wedge parts are arranged at the top end of the sponge base side by side.
Further, the sponge base is cuboid.
The utility model has the advantages that:
through setting up the wedge sponge in the cabinet body and be used for inhaling the sound to intermediate frequency noise and high frequency noise, set up low frequency silencer and inhale the sound to low frequency noise, set up the sound-proof housing and cover motor fresh air inlet and power fresh air inlet, avoid the internal noise direct diffusion of cabinet to outside, carry out the noise reduction of full frequency band to high frequency noise, intermediate frequency noise and low frequency noise through combining wedge sponge and low frequency silencer promptly, and carry out further sound insulation through the sound-proof housing, finally very big promotion generating set's noise reduction performance.
Drawings
The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.
FIG. 1 is an exploded view of a frequency division rate noise reduction generator set of the present utility model.
Fig. 2 is a schematic structural view of the wedge sponge of the present utility model.
Marking:
100-a frequency division rate noise reduction generator set, 1-a cabinet body, 2-a sound-proof housing, 3-a generator, 4-a wedge sponge, 5-a low-frequency silencer, 11-a bottom plate, 12-a top plate, 13-a cabinet door, 14-a side surrounding piece, 111-a motor air inlet, 112-a power air inlet, 41-a sponge base and 42-a wedge part.
Detailed Description
According to the frequency division rate noise reduction generator set 100, the technical problem that the noise reduction system of the generator set is composed of a flat sponge and a common muffler in the prior art is solved, the flat sponge only has a good sound absorption effect on high-frequency noise, the middle-low-frequency noise effect is general, the common muffler cannot effectively reduce low-frequency noise, the noise of the middle-low frequency section of the traditional generator set is high, the whole noise of the generator set is influenced, and the technical effect of greatly improving the noise reduction performance of the generator set is achieved.
The technical scheme in the embodiment of the utility model aims to solve the problems, and the overall thought is as follows: the wedge sponge 4 and the low-frequency muffler 5 are combined to reduce noise in a full frequency range of high-frequency noise, medium-frequency noise and low-frequency noise, and further sound insulation is performed through the sound insulation cover 2, so that the noise reduction performance of the generator set 100 is improved.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 2, a frequency division noise reduction generator set 100 according to a preferred embodiment of the present utility model includes:
a cabinet body 1, which consists of a bottom plate 11, a top plate 12, a cabinet door 13 and two side surrounding pieces 14; at least one motor air inlet 111 and at least one power air inlet 112 are arranged in the bottom plate 11; the cabinet body 1 is used for providing protection for the generator set 100; the cabinet door 13 is used for maintaining the generator set 100; the motor air inlet 111 and the power air inlet 112 are used for air inlet of the generator set 100;
at least two sound-proof covers 2, which are arranged in the cabinet body 1 and respectively cover the motor air inlet 111 or the power air inlet 112, and are used for preventing the noise in the cabinet body 1 from directly diffusing to the outside;
at least one generator 3, which is arranged in the cabinet body 1 and is used for generating electricity;
the wedge sponges 4 are arranged in the cabinet body 1, positioned on the inner wall of the cabinet body 1 and around the generator 3 and used for absorbing medium-frequency noise and high-frequency noise;
at least one low-frequency muffler 5 is provided in the cabinet 1 for absorbing low-frequency noise.
The cabinet door 13 is rotatably connected to the side enclosure 14.
The motor air inlet 111 and the power air inlet 112 are respectively located at two sides of the bottom plate 11.
The sound insulation cover 2 is a U-shaped cover.
The wedge sponge 4 includes:
a sponge base 41;
the plurality of wedges 42 are arranged side by side at the top end of the sponge base 41.
The sponge base 41 is rectangular.
The wedge 42 applies a gradual transition principle, and porous (or fibrous) materials are made into cone-shaped or wedge-shaped sound absorbers, which are collectively called sound absorption wedges; when an acoustic wave is incident from the tip of the wedge 42, the acoustic impedance of the material is better matched to that of air due to the gradual transition nature of the sound absorbing layer, so that the acoustic wave is transmitted into the sound absorber and is efficiently absorbed. The sound absorption characteristic of the wedge sponge 4 is related to the length of the wedge portion 42, the filling material and the cavity depth, and the longer the wedge portion 42 is under the same material, the better the low-frequency sound absorption performance is.
The working principle of the utility model is as follows:
during operation of the generator 3, the middle frequency and high frequency parts of the generated noise are attenuated by the wedge part 42 of the wedge sponge 4, the low frequency part of the generated noise is attenuated by the low frequency muffler 5, and the attenuated noise is output outwards through isolation of the sound-proof housing 2, so that the noise during operation of the generator 3 is basically not heard from the outside of the cabinet 1, and the ultra-silence effect is achieved.
In summary, the utility model has the advantages that:
through setting up the wedge sponge in the cabinet body and be used for inhaling the sound to intermediate frequency noise and high frequency noise, set up low frequency silencer and inhale the sound to low frequency noise, set up the sound-proof housing and cover motor fresh air inlet and power fresh air inlet, avoid the internal noise direct diffusion of cabinet to outside, carry out the noise reduction of full frequency band to high frequency noise, intermediate frequency noise and low frequency noise through combining wedge sponge and low frequency silencer promptly, and carry out further sound insulation through the sound-proof housing, finally very big promotion generating set's noise reduction performance.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.
Claims (6)
1. The utility model provides a generating set of making an uproar falls in frequency division rate which characterized in that: comprising the following steps:
the cabinet body consists of a bottom plate, a top plate, a cabinet door and two side surrounding pieces; at least one motor air inlet hole and at least one power air inlet hole are formed in the bottom plate;
at least two sound-proof covers which are arranged in the cabinet body and respectively cover an air inlet hole or a power air inlet hole of the motor;
at least one generator arranged in the cabinet body;
the wedge sponges are arranged in the cabinet body and positioned on the inner wall of the cabinet body and around the generator;
at least one low-frequency muffler is arranged in the cabinet body.
2. The frequency division rate noise reduction generator set of claim 1, wherein: the cabinet door is rotatably connected with the side surrounding piece.
3. The frequency division rate noise reduction generator set of claim 1, wherein: the motor air inlet and the power air inlet are respectively positioned at two sides of the bottom plate.
4. The frequency division rate noise reduction generator set of claim 1, wherein: the sound-proof housing is a U-shaped housing.
5. The frequency division rate noise reduction generator set of claim 1, wherein: the wedge sponge includes:
a sponge base;
the wedge parts are arranged at the top end of the sponge base side by side.
6. The frequency division rate noise reduction generator set of claim 5, wherein: the sponge base is cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321978695.1U CN220285866U (en) | 2023-07-26 | 2023-07-26 | Frequency division rate noise reduction generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321978695.1U CN220285866U (en) | 2023-07-26 | 2023-07-26 | Frequency division rate noise reduction generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220285866U true CN220285866U (en) | 2024-01-02 |
Family
ID=89332101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321978695.1U Active CN220285866U (en) | 2023-07-26 | 2023-07-26 | Frequency division rate noise reduction generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220285866U (en) |
-
2023
- 2023-07-26 CN CN202321978695.1U patent/CN220285866U/en active Active
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