CN116857474A - Folded plate type silencer - Google Patents
Folded plate type silencer Download PDFInfo
- Publication number
- CN116857474A CN116857474A CN202310811635.9A CN202310811635A CN116857474A CN 116857474 A CN116857474 A CN 116857474A CN 202310811635 A CN202310811635 A CN 202310811635A CN 116857474 A CN116857474 A CN 116857474A
- Authority
- CN
- China
- Prior art keywords
- sound
- shaped
- absorbing
- pipeline body
- sound absorbing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003584 silencer Effects 0.000 title abstract description 25
- 238000000034 method Methods 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000011358 absorbing material Substances 0.000 description 7
- 230000008030 elimination Effects 0.000 description 6
- 238000003379 elimination reaction Methods 0.000 description 6
- 230000030279 gene silencing Effects 0.000 description 4
- 230000001743 silencing effect Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
Abstract
The application discloses a folded plate type silencer which comprises a pipeline body, a plurality of straight sound absorbing plates and a plurality of V-shaped sound absorbing plates, wherein the straight sound absorbing plates and the V-shaped sound absorbing plates are arranged in the pipeline body at intervals, and the V-shaped sound absorbing plates are overlapped with the straight sound absorbing plates at two sides to form the folded plate type sound absorbing plates; the straight sound absorbing plate is vertically and rotatably connected in the pipeline body, and when the straight sound absorbing plate rotates to be parallel to the length direction of the pipeline body, the adjacent straight sound absorbing plates are spliced into the sheet sound absorbing plate. The application has the effect of improving the adaptability of the silencer.
Description
Technical Field
The application relates to the field of silencers, in particular to a folded plate type silencer.
Background
A resistive muffler is a muffler that utilizes a porous sound absorbing material to reduce noise. The sound absorbing material is fixed on the inner wall of the airflow channel or arranged in a pipeline in a certain mode, and the sound energy is converted into heat energy and emitted due to friction resistance and viscous force, so that the purpose of silencing is achieved. The resistive muffler is suitable for eliminating middle and high frequency noise and has poor noise elimination effect on low frequency noise. Therefore, the device is mainly used for ventilating and air conditioning system pipelines, air inlets and air outlets of a machine room, and silencing and noise reduction of the air inlets and the air outlets are designed by aerodynamic force.
Currently, resistive muffler types include straight tube, sheet, folded sheet, etc., where sheet mufflers are suitable for use with larger air volumes and larger duct conditions. The large pipeline is divided into a plurality of silencing channels with smaller sizes, so that the larger airflow channels can be kept, the circumference of sound absorbing materials of the airflow channels is increased, the sound absorbing materials have better silencing effect, the folded plate type silencer is based on the sheet type silencer, the length and the bending of the airflow channels are increased, the contact time of noise and the sound absorbing materials is prolonged, the direct projection of high-frequency noise is reduced, the silencing effect is properly increased, but compared with the sheet type silencer, the resistance is also increased, and the folded plate type silencer is suitable for being used under the condition of the pipeline with smaller air quantity.
With respect to the related art in the above, the applicant believes that there are the following drawbacks: in practical application, the adaptability requirement of large-scale public place to noise elimination equipment is higher, and some public places exist that daytime people's flow is big, night people's flow is little condition, and daytime people's flow is big then need carry out big amount of wind and exhaust to accelerate the circulation of air, and the noise elimination requirement is on the contrary not so high, and the environment that needs quieter at night, the requirement of noise elimination effect can be higher than the requirement of exhaust effect, and current muffler adaptability is relatively poor, is difficult to make the adjustment according to the change of different noise elimination effect requirements and exhaust requirement, therefore still has room for improvement.
Disclosure of Invention
In order to improve the adaptability of the silencer, the application provides a folded plate type silencer.
The application provides a folded plate type silencer which adopts the following technical scheme:
the folded plate type silencer comprises a pipeline body, a plurality of straight sound absorbing plates and a plurality of V-shaped sound absorbing plates, wherein the straight sound absorbing plates and the V-shaped sound absorbing plates are arranged in the pipeline body at intervals, and the V-shaped sound absorbing plates are overlapped with the straight sound absorbing plates at two sides to form the folded plate type sound absorbing plates; the straight sound absorbing plate is vertically and rotatably connected in the pipeline body, and when the straight sound absorbing plate rotates to be parallel to the length direction of the pipeline body, the adjacent straight sound absorbing plates are spliced into the sheet sound absorbing plate.
By adopting the technical scheme, the folded plate type sound absorbing plate is split into a plurality of linear sound absorbing plates and V-shaped sound absorbing plates which are distributed at intervals, and the folded plate type sound absorbing plates are formed by mutually overlapping, so that the contact time of noise and sound absorbing materials is increased, the direct projection of high-frequency noise is reduced, the noise reduction effect is improved, and the folded plate type sound absorbing plate is suitable for being used at night with low exhaust quantity and high noise reduction requirement; through with the vertical connection of rotating of a word abatvoix in the pipeline is originally internal, through rotating a word abatvoix, realize the amalgamation of adjacent word abatvoix, form the piece formula abatvoix unanimous with pipeline body length direction, thereby separate into the less noise elimination passageway of size with big pipeline, can keep great air current passageway, have to be fit for using at the daytime that the emission demand is big, thereby be favorable to improving the adaptability of muffler, with make the adjustment according to the change of the different amortization effect demands of different occasions and the demand of airing exhaust.
Preferably, the V-shaped acoustic panel comprises two panel units, wherein one sides of the two panel units, which are away from each other, are respectively erected on the side walls of two adjacent in-line acoustic panels, and the V-shaped acoustic panel is horizontally and transversely connected in a pipeline unit in a rotating manner; in the process that the straight sound-absorbing plate rotates to be parallel to the length direction of the pipeline body, the straight sound-absorbing plate drives the V-shaped sound-absorbing plate to turn down; when the straight sound absorbing plate rotates to be parallel to the length direction of the pipeline body, the V-shaped sound absorbing plate swings to be in a horizontal state.
Through adopting above-mentioned technical scheme, with the horizontal transverse rotation of V type abatvoix connect in the pipeline is originally internal, and realize the operation of turning over down of V type abatvoix at the rotation in-process of a word abatvoix, improved the V type abatvoix and singly strutted the problem in the pipeline is originally internal, reduce the V type abatvoix and receive the condition of airing exhaust pressure and buckling for a long time.
Preferably, the pipeline body is provided with a driving piece, and the driving piece is used for driving the linear sound absorbing plate to rotate; the pipeline body is provided with an elastic piece, and the elastic piece is used for driving the V-shaped acoustic panel to recover to a vertical state.
By adopting the technical scheme, the silencer is convenient to switch between the sheet type and the folded sheet type.
Preferably, the bottom of the pipeline body is provided with a containing groove, and when the V-shaped acoustic panel swings to a horizontal state, the V-shaped acoustic panel is contained in the containing groove.
Through adopting above-mentioned technical scheme, accomodate V type abatvoix to the holding tank in to withdraw from V type abatvoix from the runner of airing exhaust, reduce the direct influence of wind-force to V type abatvoix, be favorable to prolonging V type abatvoix's life.
Preferably, the in-line acoustic panel is provided with vertical pivot, vertical pivot vertical rotation is connected in the pipeline is originally internal, the driving piece is used for driving vertical pivot rotation. The accommodating groove is internally provided with a transverse rotating shaft, and the V-shaped acoustic panel is rotationally connected with the transverse rotating shaft. The elastic piece is a torsion spring, the torsion spring is sleeved on the periphery of the transverse rotating shaft, the fixed end of the torsion spring is fixed in the accommodating groove, and the movable end of the torsion spring is fixed at the lower end of the V-shaped acoustic board.
By adopting the technical scheme, the switching smoothness and stability of the silencer sheet type and the folded plate type are improved.
Preferably, the accommodating groove is internally provided with an installing seat, and when the V-shaped acoustic panel is accommodated in the accommodating groove, the V-shaped acoustic panel is attached to the installing seat.
By adopting the technical scheme, the structural strength of the V-shaped acoustic panel in the storage state is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the folded plate type sound absorbing plates are split into the plurality of the linear sound absorbing plates and the V-shaped sound absorbing plates which are distributed at intervals, the linear sound absorbing plates are vertically and rotatably connected in the pipeline body, the adjacent linear sound absorbing plates are spliced by rotating the linear sound absorbing plates, the sheet type sound absorbing plates consistent with the length direction of the pipeline body are formed, and the switching of the V-shaped sound absorbing plates and the linear sound absorbing plates is realized, so that the adaptability of the silencer is improved, and the silencer is adjusted according to different silencing effect requirements of different occasions and changes of exhaust requirements;
2. through setting up each other with the straight acoustic panel of V type acoustic panel to V type acoustic panel level horizontal rotation is connected in the pipeline list, realizes the operation of turning over down of V type acoustic panel at the rotation in-process of straight acoustic panel, has improved the problem of V type acoustic panel supporting alone in the pipeline is originally internal, reduces the condition that V type acoustic panel received exhaust pressure and buckle for a long time.
Drawings
Fig. 1 is a schematic view of a folded-plate muffler according to an embodiment of the present application.
Fig. 2 is a schematic view of a folded plate type muffler according to an embodiment of the present application.
Fig. 3 is an enlarged schematic view at a in fig. 2.
Fig. 4 is a schematic view of a V-shaped sound absorbing panel in a folded-plate muffler according to an embodiment of the present application in a vertical state.
Fig. 5 is a schematic view showing a structure of a flap-type muffler in a sheet state according to an embodiment of the present application.
Fig. 6 is a schematic view of a V-shaped sound absorbing panel in a folded-plate muffler according to an embodiment of the present application in a stored state.
Reference numerals illustrate: 1. a pipe body; 11. a receiving groove; 2. a straight sound-absorbing board; 3. v-shaped acoustic panel; 4. a driving member; 5. a mounting base; 6. a vertical rotating shaft; 7. a transverse rotating shaft; 8. a torsion spring; 81. a movable end; 82. and a fixed end.
Detailed Description
The application is described in further detail below with reference to fig. 1-6.
The embodiment of the application discloses a folded plate type silencer. Referring to fig. 1 and 2, the sound absorbing structure comprises a pipeline body 1, a plurality of straight sound absorbing boards 2 and a plurality of V-shaped sound absorbing boards 3, and in the embodiment, the outer surfaces of the straight sound absorbing boards 2 and the plurality of V-shaped sound absorbing boards 3 are coated with porous sound absorbing materials, such as fiber materials, glass wool and the like. The plurality of the in-line sound absorbing boards 2 and the plurality of the V-shaped sound absorbing boards 3 are arranged inside the pipeline body 1 at intervals along the length direction of the pipeline body 1, and the length direction of the pipeline body 1 is the airflow flowing direction.
Referring to fig. 2 and 3, the vertical rotating shaft 6 is embedded in the linear sound absorbing plate 2, the vertical rotating shaft 6 is vertically and rotatably connected in the pipeline body 1, a plurality of driving pieces 4 are mounted on the upper surface of the pipeline body 1, the driving pieces 4 are in one-to-one correspondence with the vertical rotating shafts 6 of the plurality of linear sound absorbing plates 2, in the embodiment, the driving pieces 4 are motors, output shafts of the motors are coaxially connected with the corresponding vertical rotating shafts 6, and the vertical rotating function of the linear sound absorbing plates 2 can be realized through motor driving.
The V-shaped acoustic panel 3 comprises two panel units, wherein an included angle between the two panel units is 60-160 degrees, and in the embodiment of the application, the included angle between the two panel units is 60 degrees. One side of each two plate units, which is away from each other, is respectively erected on the side walls of the two adjacent in-line sound absorbing plates 2 to form a folded plate type sound absorbing plate, so that the sound absorbing effect of the silencer can be improved.
Referring to fig. 2 and 4, the bottom wall of the duct body 1 is provided with a plurality of receiving grooves 11, the plurality of receiving grooves 11 being in one-to-one correspondence with the plurality of V-shaped sound absorbing plates 3, the receiving grooves 11 being for receiving the V-shaped sound absorbing plates 3. The horizontal rotating shaft 7 is horizontally fixed in the accommodating groove 11, and the length direction of the horizontal rotating shaft 7 is consistent with the length direction of the pipeline body 1. An elastic piece is arranged in the accommodating groove 11, the elastic piece is specifically a torsion spring 8, and the torsion spring 8 is sleeved on the transverse rotating shaft 7. Wherein, the holding tank 11 is provided with the mount pad 5, and the stiff end 82 of torsional spring 8 inlays the dress and fixes on the mount pad 5, and the expansion end 81 of torsional spring 8 inlays the dress and fixes the lower extreme at V type abatvoix 3. When the muffler mode is folded plate type, the V-shaped acoustic board 3 is vertically upwards arranged, the V-shaped acoustic board 3 is subjected to the elasticity of the torsion spring 8 and is abutted against the straight acoustic board 2, and the splicing effect of the V-shaped acoustic board 3 and the straight acoustic board 2 is improved.
The embodiment of the application provides a folded plate type silencer, which has the implementation principle that:
referring to fig. 5 and 6, when the muffler is switched from the folded plate type to the plate type, the motor is started to drive each of the linear sound-absorbing plates 2 to rotate, and when the linear sound-absorbing plates 2 rotate to be parallel to the length direction of the pipe body 1, the adjacent linear sound-absorbing plates 2 are spliced into the plate type sound-absorbing plates. Therefore, the large pipeline is divided into the silencing channels with smaller sizes, the larger airflow channels can be kept, and the silencer is suitable for being used in daytime with large emission requirements, so that the adaptability of the silencer is improved. In the process that the linear sound-absorbing plate 2 rotates to be parallel to the length direction of the pipeline body 1, the linear sound-absorbing plate 2 drives the V-shaped sound-absorbing plate 3 to turn down; when the straight sound-absorbing plate 2 rotates to be parallel to the length direction of the pipeline body 1, the V-shaped sound-absorbing plate 3 swings to be in a horizontal state and is contained in the containing groove 11, the V-shaped sound-absorbing plate 3 is attached to the mounting seat 5, and at the moment, the torsion degree of the torsion spring 8 reaches the maximum.
When the silencer is switched from a sheet type to a folded plate type, the motor is reversed, and the V-shaped acoustic board 3 is reset to a vertical state under the elastic force of the torsion spring 8 and extends out of the accommodating groove 11. The V-shaped acoustic panel 3 and the in-line acoustic panel 2 are switched, so that the adaptability of the silencer is improved, and the silencer is adjusted according to different silencing effect requirements and changes of exhaust requirements in different occasions.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A folded-plate muffler, characterized in that: the novel sound-absorbing structure comprises a pipeline body (1), a plurality of straight sound-absorbing boards (2) and a plurality of V-shaped sound-absorbing boards (3), wherein the straight sound-absorbing boards (2) and the V-shaped sound-absorbing boards (3) are arranged in the pipeline body (1) at intervals, and the V-shaped sound-absorbing boards (3) are overlapped with the straight sound-absorbing boards (2) on two sides to form a folded plate type sound-absorbing board; the straight sound-absorbing plate (2) is vertically and rotatably connected in the pipeline body (1), and when the straight sound-absorbing plate (2) rotates to be parallel to the length direction of the pipeline body (1), the adjacent straight sound-absorbing plates (2) are spliced into the sheet type sound-absorbing plate.
2. The flap muffler of claim 1 wherein: the V-shaped acoustic panel (3) comprises two panel units, one sides of the two panel units, which are away from each other, are respectively erected on the side walls of two adjacent straight acoustic panels (2), and the V-shaped acoustic panel (3) is horizontally and transversely connected in a pipeline unit in a rotating way; in the process that the linear sound-absorbing plate (2) rotates to be parallel to the length direction of the pipeline body (1), the linear sound-absorbing plate (2) drives the V-shaped sound-absorbing plate (3) to turn down; when the straight sound-absorbing plate (2) rotates to be parallel to the length direction of the pipeline body (1), the V-shaped sound-absorbing plate (3) swings to be in a horizontal state.
3. The flap muffler of claim 1 wherein: the pipeline body (1) is provided with a driving piece (4), and the driving piece (4) is used for driving the linear sound absorbing plate (2) to rotate; the pipeline body (1) is provided with an elastic piece, and the elastic piece is used for driving the V-shaped acoustic panel (3) to restore to a vertical state.
4. A folded-sheet muffler as defined in claim 3, wherein: the bottom of the pipeline body (1) is provided with a containing groove (11), and when the V-shaped acoustic panel (3) swings to be in a horizontal state, the V-shaped acoustic panel (3) is contained in the containing groove (11).
5. The flap muffler of claim 1 wherein: the sound absorbing plate (2) is provided with a vertical rotating shaft (6), the vertical rotating shaft (6) is vertically connected in the pipeline body (1) in a rotating mode, and the driving piece (4) is used for driving the vertical rotating shaft (6) to rotate.
6. The flap muffler of claim 4 wherein: the V-shaped sound absorbing plate is characterized in that a transverse rotating shaft (7) is arranged in the accommodating groove (11), and the V-shaped sound absorbing plate (3) is rotationally connected with the transverse rotating shaft (7).
7. The flap muffler of claim 6 wherein: the elastic piece is a torsion spring (8), the torsion spring (8) is sleeved on the periphery of the transverse rotating shaft (7), the fixed end (82) of the torsion spring (8) is fixed in the accommodating groove (11), and the movable end (81) of the torsion spring (8) is fixed at the lower end of the V-shaped sound absorbing plate (3).
8. The flap muffler of claim 4 wherein: be provided with mount pad (5) in holding tank (11), work as V type abatvoix (3) accomodate in holding tank (11), V type abatvoix (3) laminating with mount pad (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310811635.9A CN116857474B (en) | 2023-07-03 | 2023-07-03 | Folded plate type silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310811635.9A CN116857474B (en) | 2023-07-03 | 2023-07-03 | Folded plate type silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116857474A true CN116857474A (en) | 2023-10-10 |
| CN116857474B CN116857474B (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310811635.9A Active CN116857474B (en) | 2023-07-03 | 2023-07-03 | Folded plate type silencer |
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| Country | Link |
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| CN (1) | CN116857474B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299608A (en) * | 2013-07-17 | 2015-01-21 | 青钢金属建材(上海)有限公司 | Sound absorbing noise reduction assembly and method thereof |
| KR102024833B1 (en) * | 2019-01-24 | 2019-09-24 | 임칠호 | Sound absorbing damper and damper structure using same |
| CN110595052A (en) * | 2019-09-20 | 2019-12-20 | 武汉源海博创科技有限公司 | Silencer with adjustable and excellent performance adapting to air inlet parameters |
| CN213931389U (en) * | 2020-11-20 | 2021-08-10 | 四川雄风工程设备有限公司 | Air pipe noise reduction device |
| CN113403973A (en) * | 2021-07-22 | 2021-09-17 | 正升环境科技股份有限公司 | Adjustable smoke exhaust and sound absorption device and closed sound barrier |
| CN217463688U (en) * | 2022-06-21 | 2022-09-20 | 江苏远兴集团建设有限公司 | Folded plate type silencer |
| CN219082566U (en) * | 2022-12-22 | 2023-05-26 | 四川聚创欣荣科技有限公司 | Muffler installed in airflow channel |
-
2023
- 2023-07-03 CN CN202310811635.9A patent/CN116857474B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299608A (en) * | 2013-07-17 | 2015-01-21 | 青钢金属建材(上海)有限公司 | Sound absorbing noise reduction assembly and method thereof |
| KR102024833B1 (en) * | 2019-01-24 | 2019-09-24 | 임칠호 | Sound absorbing damper and damper structure using same |
| CN110595052A (en) * | 2019-09-20 | 2019-12-20 | 武汉源海博创科技有限公司 | Silencer with adjustable and excellent performance adapting to air inlet parameters |
| CN213931389U (en) * | 2020-11-20 | 2021-08-10 | 四川雄风工程设备有限公司 | Air pipe noise reduction device |
| CN113403973A (en) * | 2021-07-22 | 2021-09-17 | 正升环境科技股份有限公司 | Adjustable smoke exhaust and sound absorption device and closed sound barrier |
| CN217463688U (en) * | 2022-06-21 | 2022-09-20 | 江苏远兴集团建设有限公司 | Folded plate type silencer |
| CN219082566U (en) * | 2022-12-22 | 2023-05-26 | 四川聚创欣荣科技有限公司 | Muffler installed in airflow channel |
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| Publication number | Publication date |
|---|---|
| CN116857474B (en) | 2024-03-29 |
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