CN208936494U - A kind of complex muffler with S-shaped channel - Google Patents
A kind of complex muffler with S-shaped channel Download PDFInfo
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- CN208936494U CN208936494U CN201821368936.XU CN201821368936U CN208936494U CN 208936494 U CN208936494 U CN 208936494U CN 201821368936 U CN201821368936 U CN 201821368936U CN 208936494 U CN208936494 U CN 208936494U
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- shaped
- suppressor case
- shaped channel
- microperforated panel
- silencing apparatus
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Abstract
The utility model belongs to Heating,Ventilating and Air Conditioning silencing apparatus technical field, specifically, it is related to a kind of complex muffler with S-shaped channel, including suppressor case, the both ends of suppressor case are respectively arranged with air inlet and air outlet, waveform silencing apparatus is internally provided in suppressor case, waveform silencing apparatus includes multiple S-shaped channels, gap of the S-shaped channel between two adjacent S-shaped deflectors, the two sides of S-shaped deflector are provided with S-shaped microperforated panel, and silencing cotton is filled between S-shaped deflector and S-shaped microperforated panel；The technical solution of the utility model is conducive to air-flow using V-arrangement distributary division, afflux portion and steadily passes in and out, improve airflow stability by utilizing the design of S-shaped channel to reduce air-flow flow resistance in suppressor case.The utility model complex muffler increases compared to single micropunch silencer, dissipative muffler, impedance composite muffler, noise elimination contact area, and frequency of exposure increases, and noise elimination effect is substantially improved.
Description
Technical field
The utility model belongs to Heating,Ventilating and Air Conditioning silencing apparatus technical field, in particular to a kind of with S-shaped channel
Complex muffler.
Background technique
When equipment operational shock and air-flow pass through air duct due to external and internal pressure, flow velocity imbalance etc., air hose is caused to produce
Raw huge noise, has an impact the production and living of people, commonly uses micropunch silencer, dissipative muffler or impedance complex formula
Silencer solves noise problem.Micropunch silencer anechoic frequency bandwidth, but noise elimination effect is bad；Dissipative muffler disappears to medium-high frequency
Sound effective value is good, but that there are high frequencies is ineffectiveness；Impedance composite muffler integrates resistive, resistance feature, anechoic frequency bandwidth but arrangement
Complicated silencing channel increases gas-flow resistance, influences airflow stability.Simultaneously because the universal volume of silencer is excessive, actually applying
There are certain installation limitations in work.
Utility model content
It is existing to solve the main purpose of the utility model is to provide a kind of complex muffler with S-shaped channel
Micropunch silencer noise elimination effect is bad；That there are high frequencies is ineffectiveness for dissipative muffler；Impedance composite muffler arrangement complexity
The problems such as silencing channel gas-flow resistance is big, influences airflow stability.
To achieve the goals above, the utility model provides a kind of complex muffler with S-shaped channel, including disappears
Sound device shell, the both ends of suppressor case are respectively arranged with air inlet and air outlet, are internally provided with waveform in suppressor case
Silencing apparatus, waveform silencing apparatus include multiple S-shaped channels, gap of the S-shaped channel between two adjacent S-shaped deflectors, S
The two sides of shape deflector are provided with S-shaped microperforated panel, and silencing cotton is filled between S-shaped deflector and S-shaped microperforated panel；Silencer
It is attached with microperforated panel on the inner sidewall of shell, silencing cotton is filled between suppressor case and microperforated panel.
Further, distributary division and afflux portion are additionally provided on suppressor case, air inlet is arranged on distributary division, outlet air
Mouth is arranged in afflux portion.
Further, S-shaped microperforated panel is parallel with S-shaped deflector.
Further, adjacent S shape deflector is symmetrical about middle line, so that narrow portion and width portion interval occur in S-shaped channel.
Further, the cross section of suppressor case is quadrangle, and multiple S-shaped deflectors of waveform silencing apparatus are old side by side
Column.
Further, the cross section of suppressor case is circle, and multiple S-shaped deflectors of waveform silencing apparatus are in concentric circles
Form display.
Further, S-shaped microperforated panel and the diameter in the hole on microperforated panel are 0.6mm-1mm, punching rate 1%-3%.
The beneficial effects of the utility model are: the technical solution of the utility model in suppressor case by utilizing S-shaped
Channel design reduces air-flow flow resistance, is conducive to air-flow using V-arrangement distributary division, afflux portion and steadily passes in and out, improves airflow stability.
The utility model complex muffler is eliminated the noise compared to single micropunch silencer, dissipative muffler, impedance composite muffler
Contact area increases, and frequency of exposure increases, and noise elimination effect is substantially improved；Conventional silencer noise elimination 5-10dB, the utility model one
Kind complex muffler noise elimination 15-25dB, noise elimination effect are significant.The complex muffler of the utility model reaches identical noise elimination
Muffler volume needed for effect reduces, and solves construction and installation confinement problems, and it is convenient to provide for installation site selection.
The design of V-arrangement distributary division, afflux portion in the utility model, makes air-flow steadily pass in and out the S-shaped inside suppressor case
Silencers channel, according to the principle that sound wave is propagated in a fluid, intensity with by distance increase decaying, S-shaped channel
Design increases Acoustic Wave Propagation distance and reduces gas-flow resistance simultaneously；Compared with common silencer, identical noise content is eliminated, waveform is eliminated the noise
Device reduces identical quantity quieter material occupied space volume, to reduce muffler volume；Sound wave passes in S-shaped channel
Broadcast, order of reflection increases, i.e., with silencing apparatus and be located at the microperforated panel of inner wall, S-shaped microperforated panel, silencing cotton frequency of exposure increase
It is more, reach preferable noise elimination effect, improves acoustical absorptivity.
Detailed description of the invention
In the accompanying drawings:
Fig. 1 is the overall structure diagram of the utility model；
In figure, 1 is air inlet, and 2 be distributary division, and 3 be S-shaped microperforated panel, and 4 be microperforated panel, and 5 be S-shaped deflector, and 6 are
Silencing cotton, 7 be suppressor case, and 8 be afflux portion, and 9 be air outlet, and 10 be narrow portion, and 11 be width portion.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The application protection all should belong in technical staff's every other embodiment obtained without making creative work
Range.
It should be noted that term " level-one " in the specification and claims of the utility model and above-mentioned attached drawing,
" second level " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The term used is interchangeable under appropriate circumstances, so as to the embodiments of the present invention described herein.In addition, term " packet
Include " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps
Or the process, method, system, product or equipment of unit those of are not necessarily limited to be clearly listed step or unit, but can wrap
Include other step or units being not clearly listed or intrinsic for these process, methods, product or equipment.
As shown in Figure 1, a kind of complex muffler with S-shaped channel, including suppressor case 7, suppressor case are
The cylinder of both ends open is respectively arranged with air inlet 1 and air outlet 9 at the both ends of suppressor case 7, specifically, silencer
One end of shell 7 is connected with distributary division 2, and distributary division 2 is in the tube body of circle frustum-like shape, the big end and suppressor case 7 of distributary division
It is fixedly connected, the small end of circle truncated cone is connect with air inlet 1；Identical, afflux portion 8 is also the tube body of circle frustum-like shape, afflux portion
Big end is fixedly connected with the other end of suppressor case 7, and the small end in afflux portion 8 is arranged in air outlet 9.The present embodiment is by disappearing
The air inlet end setting distributary division 2 of sound device shell 7 can be such that air-flow smoothly enters in suppressor case, and suppressor case
Air-flow in 7 can be smoothly discharged by afflux portion 8.
It is internally provided with waveform silencing apparatus in suppressor case 7, waveform silencing apparatus includes multiple S-shaped channels, and S-shaped is logical
Road is to be made of the gap between two adjacent S-shaped deflectors 5, and 5 vertical direction of S-shaped deflector is S-shaped, and S-shaped deflector 5 exists
Horizontal direction is a closed annular, and multiple S-shaped deflectors 5 display in the form of concentric circles.In the two sides of S-shaped deflector 5
It is provided with S-shaped microperforated panel 3, silencing cotton 6 is filled between S-shaped deflector 5 and S-shaped microperforated panel 3；Suppressor case 7
It is attached with microperforated panel 4 on inner sidewall, silencing cotton 6 is filled between suppressor case 7 and microperforated panel 4.Sound in the present embodiment
Wave, which is propagated in S-shaped channel and meets S-shaped microperforated panel, occurs multiple reflections, so that the propagation distance of sound wave increases, it is effective to drop
The sound wave of wave energy in a low voice, reflection is contacted with microperforated panel 4 or S-shaped microperforated panel 3, and micro- pinking structure can change Primordial Qi stream
Audio frequency, meanwhile, sound wave is contacted with the noise elimination cotton in microperforated panel 4 and S-shaped microperforated panel 3, and sound can be in micro-pore due to friction
It is converted to thermal dissipation.
S-shaped microperforated panel 3 and 5 Parallel Design of S-shaped deflector, adjacent S shape deflector 5 is symmetrical about the middle line of the two, therefore
The formation narrow portion 10 that can be spaced in S-shaped channel and wide portion 11, narrow portion 10 and wide portion 11 are spaced appearance, sound wave in S row of channels
When propagation in S-shaped channel, can have the effect of similar to impedance complex formula muffler.
In another embodiment, the cross section of suppressor case 7 is quadrangle, and multiple S-shapeds of waveform silencing apparatus are led
For flowing plate 5 in vertical display side by side, adjacent S shape deflector 5 is symmetrical about the middle line of the two, therefore can be spaced in S-shaped channel
Form narrow portion 10 and wide portion 11, narrow portion 10 and wide portion 11 are spaced appearance in S row of channels, sound wave propagated in S-shaped channel when
It waits, can have the effect of similar to impedance complex formula muffler.
In above two embodiment, the diameter in 4 hole is 0.6mm-1mm on S-shaped microperforated panel 3 and microperforated panel, is worn
Porosity is 1%-3%.
Working principle, air-flow enter from air inlet, and air-flow is followed by distributary division → S row of channels → afflux portion → outlet air
Mouthful, air-flow is shunted in distributary division, is smoothly entered in S-shaped channel；The sound wave that air-flow generates is propagated through in S-shaped channel
The absorption of multiple reflections and silencing cotton.
The application is described in detail above, it is used herein can principle and embodiment party of the specific case to the application
Formula is expounded, the description of the example is only used to help understand the method for the present application and its core ideas, meanwhile, it is right
In those of ordinary skill in the art, according to the thought of the application, change is had in specific embodiments and applications
Place, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (7)
1. a kind of complex muffler with S-shaped channel, including suppressor case, the both ends of suppressor case are respectively arranged with
Air inlet and air outlet, it is characterised in that: be internally provided with waveform silencing apparatus in suppressor case, waveform silencing apparatus includes
Multiple S-shaped channels, gap of the S-shaped channel between two adjacent S-shaped deflectors, it is micro- that the two sides of S-shaped deflector are provided with S-shaped
Perforated plate is filled with silencing cotton between S-shaped deflector and S-shaped microperforated panel；Micro- wear is attached on the inner sidewall of suppressor case
Orifice plate is filled with silencing cotton between suppressor case and microperforated panel.
2. the complex muffler according to claim 1 with S-shaped channel, it is characterised in that: the suppressor case
On be additionally provided with distributary division and afflux portion, air inlet is arranged on distributary division, and air outlet is arranged in afflux portion.
3. the complex muffler according to claim 2 with S-shaped channel, it is characterised in that: the S-shaped microperforated panel
It is parallel with S-shaped deflector.
4. the complex muffler according to claim 2 with S-shaped channel, it is characterised in that: adjacent S shape deflector closes
It is symmetrical in middle line, so that narrow portion and width portion interval occur in S-shaped channel.
5. the complex muffler according to claim 4 with S-shaped channel, it is characterised in that: the suppressor case
Cross section be quadrangle, multiple S-shaped deflectors of waveform silencing apparatus display side by side.
6. the complex muffler according to claim 4 with S-shaped channel, it is characterised in that: the suppressor case
Cross section be circle, multiple S-shaped deflectors of waveform silencing apparatus display in the form of concentric circles.
7. the complex muffler according to claim 1-6 with S-shaped channel, it is characterised in that: the S-shaped
The diameter in the hole on microperforated panel and microperforated panel is 0.6mm-1mm, punching rate 1%-3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821368936.XU CN208936494U (en) | 2018-08-24 | 2018-08-24 | A kind of complex muffler with S-shaped channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821368936.XU CN208936494U (en) | 2018-08-24 | 2018-08-24 | A kind of complex muffler with S-shaped channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208936494U true CN208936494U (en) | 2019-06-04 |
Family
ID=66718707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821368936.XU Active CN208936494U (en) | 2018-08-24 | 2018-08-24 | A kind of complex muffler with S-shaped channel |
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| Country | Link |
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| CN (1) | CN208936494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111179893A (en) * | 2020-01-19 | 2020-05-19 | 广东览讯科技开发有限公司 | Sheet type high-efficiency silencer |
| CN111336558A (en) * | 2020-03-05 | 2020-06-26 | 宁波方太厨具有限公司 | Air outlet hood, range hood applying air outlet hood and control method of range hood |
-
2018
- 2018-08-24 CN CN201821368936.XU patent/CN208936494U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111179893A (en) * | 2020-01-19 | 2020-05-19 | 广东览讯科技开发有限公司 | Sheet type high-efficiency silencer |
| CN111336558A (en) * | 2020-03-05 | 2020-06-26 | 宁波方太厨具有限公司 | Air outlet hood, range hood applying air outlet hood and control method of range hood |
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