CN114694624B - Silencing device - Google Patents
Silencing device Download PDFInfo
- Publication number
- CN114694624B CN114694624B CN202210256357.0A CN202210256357A CN114694624B CN 114694624 B CN114694624 B CN 114694624B CN 202210256357 A CN202210256357 A CN 202210256357A CN 114694624 B CN114694624 B CN 114694624B
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- pipe
- silencer
- mounting plate
- unit
- silencing
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- 230000030279 gene silencing Effects 0.000 title claims abstract description 131
- 230000003584 silencer Effects 0.000 claims abstract description 45
- 239000011491 glass wool Substances 0.000 claims description 28
- 229920000742 Cotton Polymers 0.000 description 8
- 238000009413 insulation Methods 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Chemical & Material Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a silencer, which belongs to the technical field of silencers and comprises a shell, and a first silencing unit, a second silencing unit, a third silencing unit and a fourth silencing unit which are sequentially arranged in the shell at intervals, wherein the first silencing unit is arranged at one end of the shell, the fourth silencing unit is arranged at the other end of the shell, the second silencing unit and the third silencing unit are positioned between the first silencing unit and the fourth silencing unit, noise enters from the first silencing unit, sequentially passes through the second silencing unit, the third silencing unit and the fourth silencing unit, and finally is eliminated in the fourth silencing unit. According to the invention, the first silencing unit, the second silencing unit, the third silencing unit and the fourth silencing unit are assembled in a combined mode, so that the product has better assemblability and interchangeability, is easier to produce, transport and install, and the silencing amount of the product is effectively improved by optimizing the structure and the appearance.
Description
Technical Field
The invention relates to the technical field of silencers, in particular to a silencing device.
Background
A muffler is one of the necessary noise reduction devices. The traditional muffler occupies large space, is difficult to disassemble and overhaul, has small noise elimination amount, large flow resistance and large airflow regeneration noise, can influence the service efficiency of the whole equipment, and has unsatisfactory noise elimination effect.
The silencer which can be perfectly combined with the sound insulation room to form a noise reduction whole is designed in view of the design, so that the sound insulation and noise elimination effects are achieved.
Disclosure of Invention
The present invention addresses the above-described problems by providing a muffler device.
The invention adopts the technical scheme that the silencer comprises a shell, and a first silencing unit, a second silencing unit, a third silencing unit and a fourth silencing unit which are sequentially arranged in the shell at intervals;
The first silencing unit is arranged at one end of the shell, the fourth silencing unit is arranged at the other end of the shell,
The second silencing unit and the third silencing unit are positioned between the first silencing unit and the fourth silencing unit;
Noise enters from the first silencing unit, sequentially passes through the second silencing unit, the third silencing unit and the fourth silencing unit, and finally is eliminated by the fourth silencing unit.
Further, the first silencing unit comprises a first mounting seat, glass wool and a plurality of first silencing pipes;
the first mounting seat is embedded at the front end of the shell, a plurality of first mounting holes are penetrated on the first mounting seat,
The first silencing pipe is sleeved in the first mounting hole, and the glass wool is filled in the first silencing pipe.
Further, the second silencing unit comprises a second mounting seat, glass wool and a plurality of second silencing pipes;
The second mounting seat is embedded in the shell, a plurality of second mounting holes are penetrated on the second mounting seat,
The second silencing pipes are sleeved in the second mounting holes and are sequentially communicated through pipelines,
The glass wool is filled in the second silencing pipe.
Further, the second silencing pipe has an isosceles trapezoid cross section, wherein the large-diameter end of the second silencing pipe is close to the first silencing unit.
Further, a plurality of grooves are formed in the inner wall of the second silencing pipe, and the grooves are in a spiral shape.
Further, the third silencing unit comprises a third mounting seat, a third silencing pipe and glass wool;
The third mounting seat comprises a first mounting plate, a second mounting plate and a third mounting plate;
The first mounting plate, the second mounting plate and the third mounting plate are sequentially embedded in the shell at intervals, wherein the first mounting plate is arranged close to the second silencing unit;
the third silencing pipe comprises a first pipeline, a plurality of second pipelines and a plurality of third pipelines;
the first pipeline is spliced on the first mounting plate and the second mounting plate,
One end of the first pipeline penetrates through the first mounting plate, and the other end of the first pipeline penetrates through the second mounting plate;
the second pipeline is spliced on the second mounting plate,
One end of the second pipeline is positioned between the first mounting plate and the second mounting plate, and the other end of the second pipeline is positioned between the second mounting plate and the third mounting plate;
The third pipeline is spliced on the second mounting plate and the third mounting plate,
One end of the third pipeline penetrates through the second mounting plate, and the other end of the third pipeline penetrates through the third mounting plate;
The glass wool is respectively filled in the first pipeline, the second pipeline and the third pipeline.
Still further, the first conduit diameter is greater than the second conduit diameter, and the second conduit diameter is less than the third conduit diameter.
Further, the fourth silencing unit comprises a fourth installation seat, glass wool and a plurality of fourth silencing pipes;
The fourth mounting seat is embedded at the rear end of the shell, a plurality of silencing holes are penetrated on the fourth mounting seat,
The fourth silencing pipe is sleeved in the silencing hole, and the glass wool is filled in the fourth silencing pipe.
Still further, the fourth amortization pipe is oval pipe, the cross-section of amortization hole is oval, just amortization hole slope sets up on the fourth mount pad.
The invention has the beneficial effects that:
Through the first amortization unit of combination assembly, second amortization unit, third amortization unit and fourth amortization unit for the product has better assemblability and interchangeability, and easier production, transportation, installation are through optimizing structure and appearance, effectively improve the noise elimination volume of product.
The silencer silencing unit, the glass wool and the shell body are formed, noise is weakened step by step through different silencing modes, the noise is reduced to the lowest level or eliminated, and the silencer silencing unit, the glass wool and the shell body are integrally combined with a sound insulation room perfectly to form a noise reduction whole, so that the effect of sound insulation and silencing is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application, and together with the description serve to explain the application.
FIG. 1 is a schematic overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a first muffler unit installation according to an embodiment of the present invention;
FIG. 3 is a schematic view of a fourth muffler unit installation according to an embodiment of the present invention;
FIG. 4 is a schematic view of a second muffler unit according to an embodiment of the present invention;
fig. 5 is a schematic view of a third muffler unit according to an embodiment of the present invention.
Reference numerals:
1 is a first mounting seat, 101 is a first silencing pipe, 2 is a second mounting seat, 201 is a second silencing pipe, 202 is a pipeline, 3 is a shell, 301 is a first mounting plate, 302 is a second mounting plate, 303 is a third mounting plate, 304 is a first pipeline, 305 is a second pipeline, 306 is a third pipeline, 4 is a fourth mounting seat, and 401 is a fourth silencing pipe.
Detailed Description
The present invention 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 invention 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 invention.
Referring to fig. 1 to 5, as shown in fig. 1 to 5, a muffler device includes a housing 3, and first, second, third, and fourth muffler units installed in the housing 3 at intervals in sequence;
the first silencing unit is arranged at one end of the shell 3, the fourth silencing unit is arranged at the other end of the shell 3,
The second silencing unit and the third silencing unit are positioned between the first silencing unit and the fourth silencing unit;
Noise enters from the first silencing unit, sequentially passes through the second silencing unit, the third silencing unit and the fourth silencing unit, and finally is eliminated by the fourth silencing unit.
It should be noted that, the main invention point of this scheme lies in that through four silencing units that set up can be according to actual scene installation that makes a uproar, the noise that the pertinence was carried out different decibels and is absorbed, can be the pertinence noise reduction and noise removal, can easy to assemble again and dismantle.
In one embodiment of the present invention, the first silencing unit comprises a first mounting seat 1, glass wool and a plurality of first silencing tubes 101;
The first mounting seat 1 is embedded at the front end of the shell 3, a plurality of first mounting holes are arranged on the first mounting seat 1 in a penetrating way,
The first silencing pipe 101 is sleeved in the first mounting hole, and the glass wool is filled in the first silencing pipe 101.
The glass wool is a product which is made of centrifugal glass wool felt and is made of glass fiber with a diameter of only a few micrometers by using an environment-friendly formula binder mainly containing thermosetting resin, and different moistureproof veneers can be selected for on-line compounding according to the use requirement. The steel structure building heat insulation and noise reduction material has a large number of tiny air holes, so that the steel structure building heat insulation and noise reduction material has the functions of heat insulation, sound absorption and noise reduction, safety protection and the like, and is an optimal material for heat insulation, sound absorption and noise reduction of a steel structure building.
When entering the first silencing unit, the noise is divided into a plurality of parts by the first silencing pipe, the noise is reduced, then the noise propagates along the first silencing pipe, a part of the noise is absorbed by the soundproof cotton in the process, and then the noise propagates out of the first silencing pipe and is ready to enter the second silencing unit.
In one embodiment of the present invention, the second silencing unit comprises a second mounting seat 2, glass wool and a plurality of second silencing tubes 201;
The second mounting seat 2 is embedded in the shell 3, a plurality of second mounting holes are arranged on the second mounting seat 2 in a penetrating way,
The second silencing pipes 201 are sleeved in the second mounting holes, the second silencing pipes 201 are sequentially communicated through a pipeline 202,
The glass wool is filled in the second muffler pipe 201.
It should be noted that, noise is attenuated when the noise is transmitted from the first lower silencer pipe, and then the noise with reduced decibel enters from the second lower silencer pipe, and then is transmitted from the second silencer pipe, in the process, a part of the noise is transmitted along the first silencer pipe, a part of the noise is mutually transmitted along the pipeline to counteract, and the rest part of the noise is absorbed by soundproof cotton, so that on the basis of the first silencer unit, the noise passes through the second silencer unit to further reduce the decibel of the noise, and when the noise is transmitted from the second silencer pipe, the noise is ready to enter the third silencer unit.
In an embodiment of the present invention, the cross section of the second muffler pipe 201 has an isosceles trapezoid shape, wherein the large diameter end of the second muffler pipe 201 is close to the first muffler unit.
The shape and the setting of second amortization pipe are similar to the awl shape, and the main effect is that noise is after the first amortization unit is transmitted out, and the noise can in time get into the second amortization pipe along big end of big two amortization pipes and take place the process of making an uproar and removing the noise, has avoided the noise to reflect back along first amortization pipe.
In an embodiment of the present invention, a plurality of grooves are formed on the inner wall of the second muffler pipe 201, and the grooves are in a spiral shape.
When the noise propagates in the second silencing pipe, the spiral groove can be matched with the pipeline to change the frequency of the noise and delay the propagation speed, so that the noises are mutually counteracted, the decibels of the noise are reduced, and a part of the noise is eliminated.
In one embodiment of the invention, the third silencing unit comprises a third mounting seat, a third silencing pipe and glass wool;
The third mounting seat comprises a first mounting plate 301, a second mounting plate 302 and a third mounting plate 303;
The first mounting plate 301, the second mounting plate 302 and the third mounting plate 303 are sequentially embedded in the shell 3 at intervals, wherein the first mounting plate 301 is arranged close to the second silencing unit;
The third muffler pipe includes a first pipe 304, a plurality of second pipes 305, and a plurality of third pipes 306;
the first pipe 304 is plugged onto the first mounting plate 301 and the second mounting plate 302,
One end of the first pipe 304 penetrates through the first mounting plate 301, and the other end of the first pipe 304 penetrates through the second mounting plate 302;
the second conduit 305 is plugged onto the second mounting plate 302,
One end of the second pipe 305 is located between the first mounting plate 301 and the second mounting plate 302, and the other end of the second pipe 305 is located between the second mounting plate 302 and the third mounting plate 303;
The third conduit 306 is plugged onto the second mounting plate 302 and the third mounting plate 303,
One end of the third pipe 306 penetrates the second mounting plate 302, and the other end of the third pipe 306 penetrates the third mounting plate 303;
The glass wool is filled in the first, second and third pipes 304, 305 and 306, respectively.
After the noise is transmitted from the second silencing pipe, the noise firstly enters between the second mounting plate and the third mounting plate along the first pipeline, then the noise is transmitted between the first mounting plate and the second mounting plate along the second pipeline, and finally the noise enters the fourth silencing unit from between the first mounting plate and the second mounting plate along the third pipeline.
In this process, noise at first is partly absorbed by soundproof cotton, and another part noise gets into first pipeline from second amortization unit, and noise propagates along the second pipeline between first mounting panel and the second mounting panel, and at this moment, because of the second pipeline communicates the two sides of second mounting panel, noise between first mounting panel and the second mounting panel, a part gets into fourth amortization unit along the third pipeline, and noise between a part and second mounting panel and the third mounting panel offset each other to further noise decibel that reduces on the basis of second amortization unit, and eliminate a part noise.
In an embodiment of the present invention, the first pipe 304 has a diameter greater than the second pipe 305, and the second pipe 305 has a diameter smaller than the third pipe 306.
The first pipeline has the largest diameter, the noise can timely enter the third silencing unit, the second pipeline has the smallest diameter, and time is provided for mutual cancellation of the noise.
In one embodiment of the present invention, the fourth silencing unit comprises a fourth mounting seat 4, glass wool and a plurality of fourth silencing tubes 401;
The fourth mounting seat 4 is embedded at the rear end of the shell 3, a plurality of silencing holes are penetrated and arranged on the fourth mounting seat 4,
The fourth silencing pipe 401 is sleeved in the silencing hole, and the glass wool is filled in the fourth silencing pipe 401.
In an embodiment of the present invention, the fourth muffler pipe 401 is an oval pipe, the cross section of the muffler hole is oval, and the muffler hole is obliquely disposed on the fourth mounting seat 4.
It should be noted that, when entering the fourth silencer, the noise is transmitted from the third silencer, the noise propagation direction changes due to the inclined arrangement of the fourth silencer, and the noise is counteracted at the orifice of the fourth silencer, and is absorbed by the soundproof cotton after entering the fourth silencer, and the noise which is most accurate to be weakened step by step is eliminated in the fourth silencer.
When the working method of the silencer provided by the invention is used, noise enters the first silencing pipe and is divided into a plurality of parts by the first silencing pipe, so that the noise is reduced, then the noise propagates along the first silencing pipe, part of the noise is absorbed by the soundproof cotton in the process, and then the noise propagates out of the first silencing pipe and is ready to enter the second silencing unit;
Then, the noise is transmitted from the first lower silencing pipe and weakened, at the moment, the noise with reduced decibels enters from the second lower silencing pipe, part of the noise is transmitted along the first silencing pipe, part of the noise is mutually transmitted along the pipeline to counteract, the rest part of the noise is absorbed by the soundproof cotton, and finally the weakened noise is transmitted from the second silencing pipe and ready to enter the third silencing unit;
then, after the noise is transmitted from the second silencing pipe, the noise firstly enters between the second mounting plate and the third mounting plate along the first pipeline, then the noise is transmitted between the first mounting plate and the second mounting plate along the second pipeline, and finally the noise enters the fourth silencing unit from the position between the first mounting plate and the second mounting plate along the third pipeline.
In the process, firstly, part of noise is absorbed by the soundproof cotton, the other part of noise enters the first pipeline from the second silencing unit, the noise propagates between the first mounting plate and the second mounting plate along the second pipeline, at the moment, as the two sides of the second mounting plate are communicated by the second pipeline, part of noise between the first mounting plate and the second mounting plate enters the fourth silencing unit along the third pipeline, and part of noise between the second mounting plate and the third mounting plate is mutually counteracted, so that noise decibels are further reduced on the basis of the second silencing unit, and part of noise is eliminated;
finally, the noise is transmitted and broadcast from the third silencing unit, when entering the fourth silencing pipe, because of the slope setting of fourth silencing pipe, noise propagation direction changes, and the noise offsets at fourth silencing pipe mouth of pipe this moment, gets into the fourth silencing pipe after, is absorbed by soundproof cotton, and the noise after weakening step by step is most accurate to eliminate in the fourth silencing pipe.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210256357.0A CN114694624B (en) | 2022-03-16 | 2022-03-16 | Silencing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210256357.0A CN114694624B (en) | 2022-03-16 | 2022-03-16 | Silencing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114694624A CN114694624A (en) | 2022-07-01 |
| CN114694624B true CN114694624B (en) | 2024-12-17 |
Family
ID=82138525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210256357.0A Active CN114694624B (en) | 2022-03-16 | 2022-03-16 | Silencing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114694624B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206293157U (en) * | 2017-01-03 | 2017-06-30 | 安徽佳明环保科技股份有限公司 | A kind of noise-reduction device |
| CN213454188U (en) * | 2020-10-29 | 2021-06-15 | 王飞 | Air flow silencer for heating ventilation air conditioner |
| CN214577285U (en) * | 2020-11-20 | 2021-11-02 | 麦格特电机江苏有限公司 | Diesel engine noise eliminator |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020096595A (en) * | 2001-06-21 | 2002-12-31 | 기아자동차주식회사 | Muffler for vehicles |
| KR200415220Y1 (en) * | 2006-02-16 | 2006-04-28 | 주식회사 동화엔텍 | silencer |
| CN101876264B (en) * | 2010-03-30 | 2012-10-03 | 宁波大叶园林设备有限公司 | Silencer with wedges and five chambers |
| KR101237931B1 (en) * | 2011-11-30 | 2013-02-28 | 현대자동차주식회사 | Muffler for vehicles in order to perform sporty booming sound |
| DE102012006544B4 (en) * | 2012-04-02 | 2015-12-31 | Tenneco Gmbh | Silencer with coupling tailpipe via coupling chamber |
| JP2015021424A (en) * | 2013-07-18 | 2015-02-02 | 中川産業株式会社 | Muffler for vehicle |
| CN104948265A (en) * | 2015-03-30 | 2015-09-30 | 徐工集团工程机械股份有限公司科技分公司 | Impedance compound muffler |
| CN204716346U (en) * | 2015-04-09 | 2015-10-21 | 北京市通州迪拉汽车附件有限公司 | Complex muffler |
| CN204716347U (en) * | 2015-04-09 | 2015-10-21 | 北京市通州迪拉汽车附件有限公司 | Five chamber reactive mufflers |
| CN106437994B (en) * | 2016-10-25 | 2018-10-30 | 浙江大学 | A kind of put-put silencer being freely disassembled adjustment |
-
2022
- 2022-03-16 CN CN202210256357.0A patent/CN114694624B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206293157U (en) * | 2017-01-03 | 2017-06-30 | 安徽佳明环保科技股份有限公司 | A kind of noise-reduction device |
| CN213454188U (en) * | 2020-10-29 | 2021-06-15 | 王飞 | Air flow silencer for heating ventilation air conditioner |
| CN214577285U (en) * | 2020-11-20 | 2021-11-02 | 麦格特电机江苏有限公司 | Diesel engine noise eliminator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114694624A (en) | 2022-07-01 |
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