CN103745719A - Resistance-resonance large-section silencer - Google Patents
Resistance-resonance large-section silencer Download PDFInfo
- Publication number
- CN103745719A CN103745719A CN201310691399.8A CN201310691399A CN103745719A CN 103745719 A CN103745719 A CN 103745719A CN 201310691399 A CN201310691399 A CN 201310691399A CN 103745719 A CN103745719 A CN 103745719A
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- Prior art keywords
- resistive
- sound insulation
- resonant cavity
- silencer
- resistance
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- 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.)
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- Exhaust Silencers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a resistance-resonance large-section silencer which has the characteristics of compact structure, adjustable frequency (adjustment equipment and method) and convenient installation. The silencer comprises a sound insulation shell, resistive films, a resonant cavity and interface flanges, wherein the interface flanges are installed at the two ends of the shell, the resonant cavity is installed outside the sound insulation shell, the resistive films are installed inside the sound insulation shell, the resonant cavity and the resistive films are connected in parallel, and the front end of each resistive film is provided with a flow guide piece. The shape and the structural size of the resistance-resonance large-section silencer can be designed according to the shape and the size of the outlet of a pipeline or fan equipment, and the silencer is connected with the pipeline or fan equipment through the flanges.
Description
technical field
The present invention relates to noise control technical field, it is a kind of resistive-resonant heavy in section sound suppressor in definite saying.
Background technology
The impact of Noise upon Environment is very large, and therefore, in industrial processes, for the noise problem that the equipment such as protection of the environment, solution heavy in section pipeline, electromechanical equipment and Wind Volume blower fan produce, people design, used various forms of noise-abatement equipment.But with regard to the sound suppressor of current use, particularly, for the sound suppressor of heavy in section pipeline and Fan Equipment, more or less all exist some problems, deficiency or defect, be mainly manifested in the following aspects, the first, resonant cavity is in inside, non-dismountable; The second, resonant frequency is unadjustable or regulate difficult; The 3rd, be not suitable for heavy in section and eliminate the noise, one-piece construction volume is large, and floor area is large; The 4th, easily produce high frequency and lost efficacy; The 5th, low frequency sound deadening capacity is not enough.
Summary of the invention
Object of the present invention is exactly for the defect existing in above-mentioned prior art and deficiency, provide a kind of by detachable resonant cavity, resistive and housing be assembled into one, easy transportation and installation, anechoic frequency bandwidth and frequency adjustable resistive-resonator muffler.The object of the present invention is achieved like this, resistive-resonator muffler comprises, housing, resistive resonant cavity and flange, flange is arranged on the two ends of sound insulation housing, it is characterized in that: resonant cavity is arranged on the outside of sound insulation housing, resistive is arranged on sound insulation enclosure interior, and resonant cavity and resistive are parallel-connection structure, and the front end of resistive is provided with conducting element.
The present invention has compact conformation, frequency can be in harmonious proportion feature easy for installation, resistive that is arranged in sound insulation housing has absorbed and has consumed acoustic wave energy, formed vent passages, the dismountable structural design of resonant cavity particularly, convenience is provided not only to installation and transportation, and increased low frequency noise elimination effect, improved soundproof effect.
accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is the partial enlarged drawing at A of the present invention place.
Embodiment
embodiment 1:
When the present invention makes, can first manufacture housing 1, resistive 2 of the interior installation of sound insulation housing 1, then resonant cavity 3 use standard components are anchored on to sound insulation housing 1 and obtain outside, form a single piece with sound insulation housing 1; The volume size that changes resonant cavity 3 can be adjusted frequency, and the resonant cavity 3 outside acoustic enclosure 1 is in-parallel structure with resistive 2, and the spacing of resistive 2 will be uniformly distributed; The conducting element 5 of resistive 2 front ends is resistances that horn structure can reduce air-flow, and sound insulation housing 1 of the present invention should adopt damping sound-deadening plate to make, and mounts acoustic absorbant 6 and sound insulating material 8 on the inside and outside two sides of middle damping 7 plates that is:; Shape of the present invention and physical dimension can go out mouth-shaped and size design according to pipeline or Fan Equipment, and with flange, are connected between pipeline or Fan Equipment.
Claims (3)
1. resistive-resonator muffler, it comprises sound insulation housing (1), resistive (2), resonant cavity (3) and flange (4), flange (4) is arranged on the two ends of sound insulation housing (1), it is characterized in that: resonant cavity (3) is arranged on the outside of sound insulation housing (1), resistive (2) are arranged on sound insulation housing (1) inside.
According to claim 1 resistive-resonator muffler, it is characterized in that: resonant cavity (3) and resistive (2) are parallel-connection structure.
According to claim 1 resistive-resonator muffler, it is characterized in that: the front end of resistive (2) is provided with conducting element (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691399.8A CN103745719A (en) | 2013-12-17 | 2013-12-17 | Resistance-resonance large-section silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691399.8A CN103745719A (en) | 2013-12-17 | 2013-12-17 | Resistance-resonance large-section silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103745719A true CN103745719A (en) | 2014-04-23 |
Family
ID=50502732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310691399.8A Pending CN103745719A (en) | 2013-12-17 | 2013-12-17 | Resistance-resonance large-section silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103745719A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2668863Y (en) * | 2003-03-07 | 2005-01-05 | 王法源 | Gas or steam dispersion special-efficient silencer |
| CN101096937A (en) * | 2006-06-30 | 2008-01-02 | 丰田合成株式会社 | Muffler duct |
| CN201060642Y (en) * | 2007-06-20 | 2008-05-14 | 中国石油天然气集团公司 | Combined silencer |
| CN102522079A (en) * | 2012-01-10 | 2012-06-27 | 厦门嘉达环保建造工程有限公司 | Impedance compound right-angled muffler |
-
2013
- 2013-12-17 CN CN201310691399.8A patent/CN103745719A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2668863Y (en) * | 2003-03-07 | 2005-01-05 | 王法源 | Gas or steam dispersion special-efficient silencer |
| CN101096937A (en) * | 2006-06-30 | 2008-01-02 | 丰田合成株式会社 | Muffler duct |
| CN201060642Y (en) * | 2007-06-20 | 2008-05-14 | 中国石油天然气集团公司 | Combined silencer |
| CN102522079A (en) * | 2012-01-10 | 2012-06-27 | 厦门嘉达环保建造工程有限公司 | Impedance compound right-angled muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140423 |