CN219431916U - Noise reduction structure of generator set - Google Patents
Noise reduction structure of generator set Download PDFInfo
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- CN219431916U CN219431916U CN202320218890.8U CN202320218890U CN219431916U CN 219431916 U CN219431916 U CN 219431916U CN 202320218890 U CN202320218890 U CN 202320218890U CN 219431916 U CN219431916 U CN 219431916U
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- cavity
- generator set
- noise
- noise reduction
- amortization
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model relates to the technical field of generators, in particular to a noise reduction structure of a generator set, which comprises the following components: including the intake pipe, first amortization portion, the outlet duct, filter equipment, guide plate and acoustical panel, through first cavity and second cavity, let the noise enter the second cavity from the amortization hole of first cavity, realize first level amortization, then get into the outlet duct from the second cavity, realize further amortization, the noise is when meetting the guide plate, through noise collision bulge, realize second grade amortization, then the noise gets into the aperture in the acoustical panel, realize tertiary amortization, accomplish whole amortization process, through above mechanism, make the noise that diesel engine tail gas produced in the generating set obtain abundant amortization, thereby the holistic ability of making an uproar that falls of generating set has been promoted, and the noise elimination efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of generators, in particular to a noise reduction structure of a generator set.
Background
The existing generator set is generally installed in a sealed installation room, if the installation room where a generator on a ship is located is then loud, or a small generator box is used, mute cotton is stuck in the box body, noise generated by the generator set is transmitted to the mute cotton, part of the noise is absorbed by the mute cotton, so that part of the noise of the generator set is reduced, the noise elimination amount is small, and the generator set still has big noise.
The Chinese patent of the grant bulletin number CN215633333U discloses a noise-reducing bass generator, and the noise-reducing method of the generator is that the box body, the first soundproof cotton and the machine foot rubber are arranged to buffer and reduce noise of the generator body, but the soundproof cotton absorbs part of noise, and the generator still has larger noise, so that a noise-reducing structure of the generator set is needed to improve the noise-reducing efficiency.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the noise reduction structure of the generator set is provided, multiple noise reduction is achieved, and noise reduction efficiency is improved.
In order to solve the technical problems, the utility model adopts the following technical scheme: the noise reduction structure of the generator set comprises a generator set body, wherein the generator set body comprises a diesel engine, and the diesel engine is connected with an exhaust pipe and comprises a noise reduction structure body;
the noise reduction structure body comprises an air inlet pipe, a first silencing part and an air outlet pipe, one end of the air inlet pipe is connected with one end of the air outlet pipe, the first silencing part is in the shape of a revolving body, the lower end of the first silencing part is connected with the other end of the air inlet pipe, and one end of the air outlet pipe is connected with the upper end of the first silencing part;
a first cavity and a second cavity are arranged in the first silencing part; the first cavity is communicated with the air inlet pipe, the first cavity is in the shape of a revolving body coaxial with the first silencing part, the second cavity is coaxially distributed outside the first cavity, the transverse section of the middle part of the second cavity is a circular ring, and the first cavity is communicated with the second cavity through a plurality of silencing holes; the inner wall of the second cavity is coated with a sound insulation material, and the upper part of the second cavity is communicated with the air outlet pipe;
the filter device is detachably and coaxially sleeved on the inner wall of the air inlet pipe, and comprises a filter layer and an activated carbon adsorption layer which are sequentially arranged from bottom to top;
still include guide plate and acoustical panel, the shape of guide plate is the rectangle, the guide plate connect in the inner wall of intake pipe, be equipped with a plurality of protruding pieces of following the horizontal direction straight line array distribution on the guide plate, the shape of protruding piece is the diamond, the inside of protruding piece is equipped with the sponge, the shape of acoustical panel is circular, acoustical panel coaxial coupling in the inner wall of intake pipe, the acoustical panel is located the top of guide plate, be equipped with a plurality of apertures on the acoustical panel.
Further, the novel air inlet pipe further comprises a first flange and a second flange, the first flange is connected to one end of the air inlet pipe, the second flange is connected to one end of the air outlet pipe, a first through hole is formed in the first flange, and a second through hole is formed in the second flange.
Further, a pull ring is arranged at one end of the filtering device, which is close to the exhaust pipe.
Further, the small holes on the silencing plate are distributed in a circumferential array.
Further, the sound insulation material is a sound insulation damping felt.
Further, the shape of the pull ring is arched or rectangular.
Further, the filtering device is fixedly connected with the inner wall of the air inlet pipe through threads.
The utility model has the beneficial effects that: through first cavity and second cavity, let the noise get into the second cavity from the amortization hole of first cavity, realize first level amortization, then the noise realizes further amortization in the second cavity, then get into the outlet duct from the second cavity, the noise is when meetting the guide plate, bump the protruding piece of guide plate through the noise, realize second grade amortization, then the noise gets into the aperture in the acoustical panel, realize tertiary amortization, accomplish whole amortization process, through above mechanism, make the noise that diesel engine tail gas produced in the generating set obtain abundant amortization, thereby the holistic ability of making an uproar that falls of generating set has been promoted, improve the amortization efficiency.
Drawings
FIG. 1 is a schematic diagram of a noise reduction structure of a generator set according to an embodiment of the present utility model;
FIG. 2 is a rear view of a noise reduction structure of a generator set according to an embodiment of the present utility model;
fig. 3 is an enlarged view of a portion a of fig. 2;
fig. 4 is a schematic axial section of fig. 3.
Description of the reference numerals:
1. a noise reduction structure body; 2. an air inlet pipe; 3. a first silencing part; 31. a first cavity; 311. a sound deadening hole; 32. a second cavity; 321. a sound insulating material; 4. an air outlet pipe; 5. a filtering device; 51. a filter layer; 52. an activated carbon adsorption layer; 6. a deflector; 61. a protruding block; 62. a sponge; 7. a muffler plate; 71. a small hole; 8. a first flange piece; 81. a first through hole; 9. a second flange piece; 91. and a second through hole.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 4, a noise reduction structure of a generator set includes a generator set body, wherein the generator set body includes a diesel engine, and the diesel engine is connected with an exhaust pipe and includes a noise reduction structure body 1;
the noise reduction structure body 1 comprises an air inlet pipe 2, a first silencing part 3 and an air outlet pipe 4, wherein one end of the air inlet pipe 2 is connected with one end of the air outlet pipe, the first silencing part 3 is in the shape of a revolving body, the lower end of the first silencing part 3 is connected with the other end of the air inlet pipe 2, and one end of the air outlet pipe 4 is connected with the upper end of the first silencing part 3;
a first cavity 31 and a second cavity 32 are arranged in the first silencing part 3; the first cavity 31 is communicated with the air inlet pipe 2, the first cavity 31 is in the shape of a revolving body coaxial with the first silencing part 3, the second cavity 32 is coaxially distributed outside the first cavity 31, the middle part of the second cavity 32 is in a circular ring in transverse section, and the first cavity 31 is communicated with the second cavity 32 through a plurality of silencing holes 311; the inner wall of the second cavity 32 is coated with a sound insulation material 321, and the upper part of the second cavity 32 is communicated with the air outlet pipe 4;
the filter device 5 is detachably and coaxially sleeved on the inner wall of the air inlet pipe 2, the filter device 5 comprises a filter layer 51 and an activated carbon adsorption layer 52, and the filter layer 51 and the activated carbon adsorption layer 52 are sequentially arranged from bottom to top;
still include guide plate 6 and acoustical panel 7, the shape of guide plate 6 is the rectangle, guide plate 6 connect in the inner wall of intake pipe 2, be equipped with a plurality of protruding pieces 61 of following horizontal direction in-line array distribution on the guide plate 6, the shape of protruding piece 61 is the diamond, the inside of protruding piece 61 is equipped with sponge 62, the shape of acoustical panel 7 is circular, acoustical panel 7 coaxial coupling in the inner wall of intake pipe 2, acoustical panel 7 is located the top of guide plate 6, be equipped with a plurality of apertures 71 on the acoustical panel 7.
In the above embodiment, after the generator is started, black smoke enters from the air inlet pipe 2, and is purified by the filter layer 51 and the activated carbon adsorption layer 52, so that particles and harmful substances in the black smoke can be effectively prevented from drifting into the air, the influence on the environment and the health of a human body is effectively prevented, then the noise enters into the first cavity 31, the noise is subjected to first-stage noise reduction by the plurality of noise reduction holes 311 of the first cavity 31, then enters into the second cavity 32, the noise is further reduced by the sound insulation material 321 coated on the inner wall of the second cavity 32, then enters into the air outlet pipe 4, the second-stage noise reduction is performed by the flow guide silencer of the flow guide plate 6, then the noise enters into the small hole 71 with a small cross section by the air inlet pipe 2 with a large cross section, third-stage noise reduction is realized, finally the other end of the air inlet pipe 2 is discharged, the whole noise reduction process is completed, the noise generated by the tail gas of the diesel engine in the generator set is sufficiently reduced by the above mechanism, and the whole noise reduction capability of the generator set is improved.
As an alternative embodiment, the structure further comprises a first flange 8 and a second flange 9, the first flange 8 is connected to one end of the air inlet pipe 2, the second flange 9 is connected to one end of the air outlet pipe, a first through hole 81 is formed in the first flange 8, and a second through hole 91 is formed in the second flange 9.
In the above embodiment, the first through hole 81 and the second through hole 91 are aligned, then the bolts are used to pass through the first through hole 81 and the second through hole, and the nuts are used to lock, so that the communication between the noise reduction structure body 1 and the exhaust pipe is completed, on one hand, the stability is increased, and on the other hand, the noise reduction structure body is assembled and disassembled.
As an alternative embodiment, the end of the filter device 5 near the exhaust pipe is provided with a pull ring.
In the above embodiment, the filter device 5 is easily drawn out of the intake pipe 2, and replacement and maintenance are facilitated.
As an alternative embodiment, the apertures 71 of the silencer plate 7 are distributed in a circumferential array.
In the above embodiment, the noise reduction effect is further improved.
As an alternative embodiment, the sound insulation material 321 is a sound insulation damping felt.
As an alternative embodiment, the shape of the pull ring is arched or rectangular.
In the above embodiment, it is convenient for the operator to pull out the filter device 5 better.
As an alternative embodiment, the filter device 5 is fastened to the inner wall of the air intake pipe 2 by a threaded connection.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (7)
1. The noise reduction structure of the generator set comprises a generator set body, wherein the generator set body comprises a diesel engine, and the diesel engine is connected with an exhaust pipe;
the noise reduction structure body comprises an air inlet pipe, a first silencing part and an air outlet pipe, one end of the air inlet pipe is connected with one end of the air outlet pipe, the first silencing part is in the shape of a revolving body, the lower end of the first silencing part is connected with the other end of the air inlet pipe, and one end of the air outlet pipe is connected with the upper end of the first silencing part;
a first cavity and a second cavity are arranged in the first silencing part; the first cavity is communicated with the air inlet pipe, the first cavity is in the shape of a revolving body coaxial with the first silencing part, the second cavity is coaxially distributed outside the first cavity, the transverse section of the middle part of the second cavity is a circular ring, and the first cavity is communicated with the second cavity through a plurality of silencing holes; the inner wall of the second cavity is coated with a sound insulation material, and the upper part of the second cavity is communicated with the air outlet pipe;
the filter device is detachably and coaxially sleeved on the inner wall of the air inlet pipe, and comprises a filter layer and an activated carbon adsorption layer which are sequentially arranged from bottom to top;
still include guide plate and acoustical panel, the shape of guide plate is the rectangle, the guide plate connect in the inner wall of intake pipe, be equipped with a plurality of protruding pieces of following the horizontal direction straight line array distribution on the guide plate, the shape of protruding piece is the diamond, the inside of protruding piece is equipped with the sponge, the shape of acoustical panel is circular, acoustical panel coaxial coupling in the inner wall of intake pipe, the acoustical panel is located the top of guide plate, be equipped with a plurality of apertures on the acoustical panel.
2. The noise reduction structure of a generator set according to claim 1, further comprising a first flange plate and a second flange plate, wherein the first flange plate is connected to one end of the air inlet pipe, the second flange plate is connected to one end of the air outlet pipe, a first through hole is formed in the first flange plate, and a second through hole is formed in the second flange plate.
3. The noise reduction structure of a generator set according to claim 1, wherein a pull ring is arranged at one end of the filtering device, which is close to the exhaust pipe.
4. The noise reduction structure of a generator set according to claim 1, wherein the apertures in the muffler plate are distributed in a circumferential array.
5. The noise reduction structure of a generator set according to claim 1, wherein the sound insulation material is a sound insulation damping felt.
6. A noise reducing structure for a generator set according to claim 3, wherein the tab is arched or rectangular in shape.
7. The noise reduction structure of a generator set according to claim 1, wherein the filtering device is fixed to the inner wall of the air inlet pipe through threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320218890.8U CN219431916U (en) | 2023-02-15 | 2023-02-15 | Noise reduction structure of generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320218890.8U CN219431916U (en) | 2023-02-15 | 2023-02-15 | Noise reduction structure of generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219431916U true CN219431916U (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202320218890.8U Active CN219431916U (en) | 2023-02-15 | 2023-02-15 | Noise reduction structure of generator set |
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| CN (1) | CN219431916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116771496A (en) * | 2023-08-24 | 2023-09-19 | 常州大道机械有限公司 | Generating set based on PID adjusts is carried out to real-time power difference |
-
2023
- 2023-02-15 CN CN202320218890.8U patent/CN219431916U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116771496A (en) * | 2023-08-24 | 2023-09-19 | 常州大道机械有限公司 | Generating set based on PID adjusts is carried out to real-time power difference |
| CN116771496B (en) * | 2023-08-24 | 2023-10-24 | 常州大道机械有限公司 | Generating set based on PID adjusts is carried out to real-time power difference |
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