CN104373173A - Composite type silencer - Google Patents
Composite type silencer Download PDFInfo
- Publication number
- CN104373173A CN104373173A CN201410535880.2A CN201410535880A CN104373173A CN 104373173 A CN104373173 A CN 104373173A CN 201410535880 A CN201410535880 A CN 201410535880A CN 104373173 A CN104373173 A CN 104373173A
- Authority
- CN
- China
- Prior art keywords
- silencing
- chamber
- composite type
- type silencer
- pipe
- 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.)
- Pending
Links
Landscapes
- Exhaust Silencers (AREA)
Abstract
The invention provides a composite type silencer which comprises a shell, an air inlet pipe and an air outlet pipe. The shell is divided into three cavities by two partition plates, the air inlet pipe is placed in the first cavity, and the air outlet pipe is placed in the third cavity. A silencing material and a microperforated panel are laid on the inner wall of the shell. One end of a micropore pipe is sealed by the second partition plate, and the other end of the micropore pipe is communicated with the first cavity after being communicated with the first partition plate. A communication pipe penetrates through the second partition plate to be communicated with the second cavity and the third cavity by using the micropore pipe as the symmetric axis. The composite type silencer has the advantages that the mode that impedance silencing, resistant silencing, small hole silencing and microperforated panel silencing are combined is used for conducting silencing treatment, and the noise reduction effect is good. Meanwhile, the structure is simple, and the manufacturing cost is low. A high temperature and fire resistance material is used in the silencing material on the bottom face of the first cavity, so that sparks in waste gas are absorbed, and the dual functions of silencing and spark extinguishment are achieved.
Description
Technical field
The invention belongs to sound-deadening and noise-reducing technical field, especially relates to a kind of composite type silencer.
Background technique
Baffler is a kind of device stoping sound transmission and allow air-flow to pass through, and is the important measures eliminating air power noise.The device of the reduction noise on the air-flow path that baffler is mounted in air powered equipment (equipment as larger in relief opening noises such as blower, air compressor, boiler exhaust mouth, generator, water pumps) or in inlet and exhaust system.
Baffler reduces the critical piece of noise as industry, there is different noise reductions in the different frequency region of difference to noise of its shape and structure, but existing baffler is all the noise-reducing structure adopting single resistive noise reduction or resistant noise-reducing on the market at present, even if what have have employed the noise reduction mode that resistive resistance combines, its noise reduction is not thorough yet, and the adaptability eliminated different capacity engine noise is poor.
Summary of the invention
The problem that the invention will solve is, a kind of composite type silencer is provided, have employed resistance noise reduction, reactive muffling, aperture are eliminated the noise and the eliminates the noise mode that combines of microperforated panel is carried out noise elimination and processed, solve noise reduction in prior art not thorough, the poor problem of adaptability is eliminated to different capacity engine noise.
For solving the problems of the technologies described above, the technological scheme that the invention adopts is:
A kind of composite type silencer is provided, comprises and become the housing of three chambers by two baffle for separatings, be positioned at the suction tude of the first chamber and be positioned at the steam outlet pipe of the 3rd chamber; Second chamber is built-in with a microporous pipe, and described microporous pipe one end and second partition are connected to form sealed end, and the other end is connected with the first chamber through after the first dividing plate;
Wherein, composite type silencer also comprises connecting tube, penetrates second partition described connecting tube and is communicated with the second chamber and the 3rd chamber;
Wherein, inner walls is equipped with quieter material and microperforated panel.
Wherein, the aperture in described microporous pipe equidistantly arranges, and described small aperture is 10-30mm, and the spacing of described aperture is 10-20mm.
Wherein, described connecting tube is two, and described two connecting tube with described microporous pipe for symmetry axis is arranged.
Wherein, described microperforated panel aperture is 1-5mm.
Wherein, described quieter material is high temperature fireproof material.
The beneficial effect of the invention is, have employed resistance noise reduction, reactive muffling, aperture are eliminated the noise and the eliminates the noise mode that combines of microperforated panel is carried out noise elimination and processed, noise elimination noise reduction is effective.The simple low cost of manufacture of structure simultaneously.The quieter material of the first chamber bottom surface adopts high temperature resistant refractory material, can absorb the Mars in waste gas, reaches the double effects of noise reduction and fire extinguishing star.
Accompanying drawing explanation
Fig. 1 is the structural scheme of mechanism of the invention composite type silencer
In figure:
1, housing 2, suction tude 3, steam outlet pipe
4, dividing plate 4-1, the first dividing plate 4-2, second partition
5, chamber 5-1, the first chamber 5-2, the second chamber
5-3, the 3rd chamber 6, microporous pipe 7, connecting tube
8, quieter material 9, microperforated panel
Embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the invention.
As shown in Figure 1, the invention comprises being become the housing of three chambers by two baffle for separatings, be positioned at the suction tude of the first chamber and be positioned at the steam outlet pipe of the 3rd chamber; Second chamber is built-in with a microporous pipe, and described microporous pipe one end and second partition are connected to form sealed end, and the other end is connected with the first chamber through after the first dividing plate; Described composite type silencer also comprises connecting tube, penetrates second partition described connecting tube and is communicated with the second chamber and the 3rd chamber; Described inner walls is equipped with quieter material and microperforated panel.
The invention working procedure: after waste gas enters the first chamber by suction tude, first carries out noise reduction by the quieter material on the first chamber bottom surface housing and microperforated panel.Utilize resistance noise reduction and microperforated panel noise-cancelling theory, the noise in waste gas is rubbed in hole and changes into thermal energy consumption and dissipate, waste gas noise sound wave is weakened, eliminate wherein most high-frequency noises.Waste gas enters through the first chamber bottom surface shell reflective the microporous pipe be connected with the first chamber afterwards.Microporous pipe is covered with many apertures, when waste gas enters the second chamber by aperture, adopt aperture noise-cancelling theory, the medium and low frequency frequency spectrum in waste gas noise will shift to high frequency and ultra-high frequency, can be heard as a point obviously reduction.Simultaneously the end face of the second chamber and the quieter material of bottom surface and microperforated panel continue to eliminate the high-frequency noises in waste gas noise.Then waste gas enters the 3rd chamber through the pipeline compression and expansion of two connecting tube again, and the compression and expansion process of waste gas is resistant noise-reducing mode, further obviates again the Middle and low frequency noise in waste gas.Then the quieter material laid through the 3rd chamber inner wall of waste gas and microperforated panel proceed noise reduction, finally discharge from steam outlet pipe.Whole process have employed the combination of resistive noise reduction, microperforated panel noise reduction, aperture noise reduction and resistant noise-reducing mode, low frequency in waste gas noise and high-frequency noises are effectively removed, what quieter material was selected simultaneously is high temperature fireproof material, Mars in waste gas effectively can be removed, avoid Mars to cause danger along with waste gas enters in air.
Here preferably two are at least connecting tube, with described microporous pipe for symmetry axis is arranged.
In addition, the aperture in described microporous pipe equidistantly arranges, and described small aperture is 10-30mm, and the spacing of described aperture is 10-20mm.Such setting is to farthest utilize microporous pipe surface area, reaches best aperture erasure effect.
Above an embodiment of the invention has been described in detail, but described content being only the preferred embodiment of the invention, the practical range for limiting the invention can not being considered to.All equalization changes done according to the invention application range with improve, within the patent covering scope that still all should belong to the invention.
Claims (5)
1. a composite type silencer, comprises and is become the housing of three chambers by two baffle for separatings, is positioned at the suction tude of the first chamber and is positioned at the steam outlet pipe of the 3rd chamber; It is characterized in that: the second chamber is built-in with a microporous pipe, described microporous pipe one end and second partition are connected to form sealed end, and the other end is connected with the first chamber through after the first dividing plate;
Described composite type silencer also comprises connecting tube, penetrates second partition described connecting tube and is communicated with the second chamber and the 3rd chamber;
Described inner walls is equipped with quieter material and microperforated panel.
2. a kind of composite type silencer according to claim 1, is characterized in that: the aperture in described microporous pipe equidistantly arranges, described small aperture is 10-30mm, and the spacing of described aperture is 10-20mm.
3. a kind of composite type silencer according to claim 2, is characterized in that: described connecting tube is two, and described two connecting tube with described microporous pipe for symmetry axis is arranged.
4. a kind of composite type silencer according to claim 3, is characterized in that: described microperforated panel aperture is 1-5mm.
5. a kind of composite type silencer according to claim 4, is characterized in that: described quieter material is high temperature fireproof material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535880.2A CN104373173A (en) | 2014-10-11 | 2014-10-11 | Composite type silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535880.2A CN104373173A (en) | 2014-10-11 | 2014-10-11 | Composite type silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373173A true CN104373173A (en) | 2015-02-25 |
Family
ID=52552333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410535880.2A Pending CN104373173A (en) | 2014-10-11 | 2014-10-11 | Composite type silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373173A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725323A (en) * | 2017-09-26 | 2018-02-23 | 台州宝乾机电有限公司 | A kind of muffler and its noise reduction method |
| CN110067733A (en) * | 2019-05-31 | 2019-07-30 | 芜湖欧宝机电有限公司 | A kind of noise elimination structure and its sound reduction method of compressor |
| CN112922709A (en) * | 2021-02-08 | 2021-06-08 | 澳龙船艇科技有限公司 | Silencer and diesel engine exhaust system |
-
2014
- 2014-10-11 CN CN201410535880.2A patent/CN104373173A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725323A (en) * | 2017-09-26 | 2018-02-23 | 台州宝乾机电有限公司 | A kind of muffler and its noise reduction method |
| CN110067733A (en) * | 2019-05-31 | 2019-07-30 | 芜湖欧宝机电有限公司 | A kind of noise elimination structure and its sound reduction method of compressor |
| CN112922709A (en) * | 2021-02-08 | 2021-06-08 | 澳龙船艇科技有限公司 | Silencer and diesel engine exhaust system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3421891B1 (en) | Cooker hood | |
| CN203655385U (en) | Silencer for engine exhaust system | |
| CN101871473B (en) | Impedance composite muffler | |
| CN105134354A (en) | Mobile muffler | |
| CN102889115A (en) | Internal combustion engine silencer and internal combustion engine | |
| CN104373173A (en) | Composite type silencer | |
| CN103850987A (en) | Fan muffler for dust remover | |
| CN104121232A (en) | Large fan in-out air muffling tower | |
| CN110030061B (en) | Exhaust silencer of racing car | |
| CN105065767A (en) | Silencer for safety valve for chemical plant | |
| CN204200310U (en) | A kind of baffler being applicable to big-block engine | |
| CN204126694U (en) | A kind of composite type silencer | |
| CN204371592U (en) | Natural gas compressor silencer and there is the natural gas compressor of this silencer | |
| CN102330588B (en) | Strip silencer | |
| CN104329139A (en) | Silencer of motorcycle exhausting system | |
| CN203783696U (en) | Novel spark extinguishing silencer | |
| CN202209199U (en) | Muffler | |
| CN105587689A (en) | Pipeline silencing device | |
| CN102926841A (en) | Motorcycle silencer | |
| CN202946221U (en) | Internal combustion engine silencer and internal combustion engine | |
| CN206075809U (en) | A kind of blowpipe steam discharge dual-purpose muffler | |
| CN204175369U (en) | A kind of impedance complex exhaust silencer | |
| CN203347887U (en) | Dissipative-reactive type muffler | |
| CN204113384U (en) | Sub-muffler assembly | |
| CN203394612U (en) | Low back pressure impedance composite exhaust silencer for engineering truck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |
|
| WD01 | Invention patent application deemed withdrawn after publication |