CN205639098U - Wide band silencer - Google Patents
Wide band silencer Download PDFInfo
- Publication number
- CN205639098U CN205639098U CN201620422124.3U CN201620422124U CN205639098U CN 205639098 U CN205639098 U CN 205639098U CN 201620422124 U CN201620422124 U CN 201620422124U CN 205639098 U CN205639098 U CN 205639098U
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- CN
- China
- Prior art keywords
- noise elimination
- shell
- cuboid
- wool
- baffle
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of the device of making an uproar falls in the noise elimination and specifically relates to a wide band silencer, its characterized in that: the inner wall of shell all around respectively fixed mounting have the noise elimination curb plate, follow noise elimination airflow channel vertical direction is in the inside fixed mounting of shell has two row at least noise eliminations to lead stream block, between arranging and arranging the noise elimination is led stream block and is crisscross formation and arranges. The utility model has the advantages that: the noise elimination performance is high, the noise elimination is the broad frequently, be convenient for produce, able to be detached. And easy to install.
Description
Technical field
This utility model relates to noise eliminating silencer field, especially a kind of broadband muffler.
Background technology
Sound pollution is as one of current four big pollutions, and acoustic filter is to allow air-flow to pass through but can stop or weaken the device of sonic propagation, is one of technical measures reducing air power noise, is mainly used in blower fan and imports and exports and in air-line system.Muffler device is widely used in the industries such as generating, chemical industry, metallurgy, weaving.
The existing acoustic filter being installed in pipeline mostly specification is fixed, it is impossible to being installed on various sizes of pipeline, the frequency band of wave absorption is narrow simultaneously, and acoustically effective is not fully up to expectations.Additionally, general acoustic filter is closed complete machine, its internal part is fixed, it is impossible to dismounting is replaced, relatively costly.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art, it is provided that broadband muffler, and portion arranges multiple rows of noise elimination baffle in the enclosure, utilizes the wedge form of noise elimination baffle simultaneously, widens the frequency band of wave absorption, improves the acoustic attenuation performance of acoustic filter.
This utility model purpose realizes being completed by techniques below scheme:
A kind of broadband muffler, at least including that shell and flange, wherein said shell are hollow housing, its internal cavities is muffled airflow passage, described flange is fixedly installed on the both sides of described shell, it is characterised in that: the inwall surrounding of described shell is installed with noise elimination side plate respectively；Vertical direction along described muffled airflow passage is installed with at least two rows in described enclosure and eliminates the noise baffle, and described noise elimination baffle between row and row is that staggered formation is arranged.
Described noise elimination baffle is cuboid, and described cuboid is connected fixing with the both sides inwall of described hollow housing, and the tip that formed, the two sides of described cuboid is towards the vertical direction of described muffled airflow passage.
Described noise elimination baffle in cuboid is made up of four pieces of perforated panel, centrifugally glass-wool, glass cloth and front cover Os Draconis, wherein said four pieces of perforated panel be connected by described front cover Os Draconis surround rectangular-shaped, described centrifugally glass-wool is filled in inside described cuboid, and described glass cloth applies at described cuboid peripheral.
Described noise elimination side plate is made up of internal layer orifice plate, centrifugally glass-wool and glass cloth, wherein said internal layer orifice plate is connected fixing with four walls of described shell, described centrifugally glass-wool is filled between described internal layer orifice plate and described shell, and described glass cloth applies outside described internal layer orifice plate.
The utility model has the advantages that: acoustic attenuation performance is high；Frequency of eliminating the noise is wider；It is easy to produce；Detachably；Convenient installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A-A sectional view of Fig. 1.
Detailed description of the invention
This utility model feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, in order to the understanding of technical staff of the same trade:
As shown in Figure 1-2, in figure, labelling 1-5 is expressed as: flange 1, shell 2, noise elimination side plate 3, noise elimination baffle 4, muffled airflow passage 5.
Embodiment: as it is shown in figure 1, the broadband muffler in the present embodiment includes that shell 1, shell 1 are hollow housing, its internal cavity offered is muffled airflow passage 5.Flange 1 is respectively fixedly disposed on the shell 2 of muffled airflow passage 5 both sides, makes to be fixedly connected by flange 1 between broadband muffler and airduct, thus completes the location and installation of broadband muffler.In order to prevent the leakage sound of connecting portion, damping material can be set between flange 1 and airduct and seal and be connected with.
As depicted in figs. 1 and 2, in shell 2, noise elimination side plate 3 and noise elimination baffle 4 it are installed with.
Noise elimination side plate 3 is fixedly mounted on the inwall surrounding of shell 2.Noise elimination side plate 3 is made up of internal layer orifice plate, centrifugally glass-wool and glass, and wherein internal layer orifice plate is connected fixing with the inwall of shell 2, and centrifugally glass-wool is filled between internal layer orifice plate and centrifugally glass-wool, and glass cloth is laid in the outside of internal layer orifice plate.
Noise elimination baffle 4 is arranged in the inside of shell 2 with multiple rows of shape, the orientation of multiple rows of noise elimination baffle 4 and muffled airflow passage 5 to offer direction identical.Noise elimination baffle 4 between row and row is arranged in staggered formation, the noise elimination baffle 4 of the most adjacent two rows to arrange position interlaced, so, be remarkably improved soundproof effect.As depicted in figs. 1 and 2, noise elimination baffle 4 is in rectangular-shaped, it is by four pieces of perforated panel, centrifugally glass-wool, glass cloth and front cover Os Draconis are constituted, wherein four pieces of perforated panel surround rectangular-shaped, the two ends of four pieces of perforated panel all inwalls with shell 2 are connected fixing, and centrifugally glass-wool is filled in inside the cuboid that four pieces of perforated panel are surrounded, and glass cloth is laid in the outer surface of four pieces of perforated panel.The tip that the adjacent two sides of rectangular-shaped noise elimination baffle 4 are formed is towards the vertical direction of muffled airflow passage 5, thus forms the noise elimination structure of wedge form.When air-flow enters the muffled airflow passage 5 within shell 2 along direction as shown by the arrows in Figure 1, eliminating the noise towards air-flow in the tip of noise elimination water conservancy diversion fast 4, so, can widen the frequency band of wave absorption, improve the acoustic attenuation performance of acoustic filter.
The present embodiment is in the specific implementation: muffler shell 2 all employing >=2.0mm cold-rolled steel sheet forms, and according to the requirement of strength of shell 2, calculates and determines and add vertically and horizontally angle steel or channel steel support on shell 2 surface.
The internal layer orifice plate employing >=1.0mm galvanized sheet of noise elimination side plate 3, aperture 3-8mm, punching rate 15-30%, (unit weight is 20-48kg/m inside to fill out centrifugally glass-wool3), external application glass cloth, appropriate location setting >=2mm supporting steel Os Draconis, meet its requirement of strength.Noise elimination side plate 3 and shell 2 are integral type structure, use embedded nut to carry out bolt connection.Noise elimination baffle 4 is fixed on the Os Draconis of shell 2, facilitates daily tour and maintenance.
Perforated panel employing >=1.0mm the galvanized sheet of noise elimination baffle 4, aperture 3-8mm, punching rate 15-30%, (unit weight is 20-48kg/m inside to fill out centrifugally glass-wool3), external application glass cloth.
As it is shown in figure 1, be fixedly installed the noise elimination baffle 4 of half inside noise elimination side plate 3 the most respectively, and the tip of the noise elimination baffle 4 of half is inwardly, so can further improve soundproof effect.
Although design and the embodiment of this utility model purpose is elaborated by above example referring to the drawings, but those of ordinary skill in the art will be consequently realised that, under the precondition limiting scope without departing from claim, still this utility model can be made various modifications and variations, such as: the size of each parts, shape；The spacing of noise elimination baffle 4, row etc., therefore repeat the most one by one at this.
Claims (4)
1. a broadband muffler, at least including that shell and flange, wherein said shell are hollow housing, its internal cavities is muffled airflow passage, described flange is fixedly installed on the both sides of described shell, it is characterised in that: the inwall surrounding of described shell is installed with noise elimination side plate respectively；Being installed with at least two rows along described muffled airflow passage vertical direction in described enclosure to eliminate the noise baffle, described noise elimination baffle between row and row is that staggered formation is arranged.
A kind of broadband muffler the most according to claim 1, it is characterized in that: described noise elimination baffle is cuboid, the both sides inwall of described cuboid and described hollow housing is connected fixing by embedded nut, and the tip that formed, the two sides of described cuboid is towards the vertical direction of described muffled airflow passage.
A kind of broadband muffler the most according to claim 2, it is characterized in that: the described noise elimination baffle in cuboid is made up of four pieces of perforated panel, centrifugally glass-wool, glass cloth and front cover Os Draconis, wherein said four pieces of perforated panel be connected by described front cover Os Draconis surround rectangular-shaped, described centrifugally glass-wool is filled in inside described cuboid, and described glass cloth applies at described cuboid peripheral.
A kind of broadband muffler the most according to claim 1, it is characterized in that: described noise elimination side plate is made up of internal layer orifice plate, centrifugally glass-wool and glass cloth, wherein said internal layer orifice plate is connected fixing with four walls of described shell, described centrifugally glass-wool is filled between described internal layer orifice plate and described shell, and described glass cloth applies outside described internal layer orifice plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620422124.3U CN205639098U (en) | 2016-05-11 | 2016-05-11 | Wide band silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620422124.3U CN205639098U (en) | 2016-05-11 | 2016-05-11 | Wide band silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639098U true CN205639098U (en) | 2016-10-12 |
Family
ID=57059758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620422124.3U Expired - Fee Related CN205639098U (en) | 2016-05-11 | 2016-05-11 | Wide band silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI718787B (en) * | 2019-11-28 | 2021-02-11 | 英業達股份有限公司 | Sound isolation window and heat dissipation structure |
-
2016
- 2016-05-11 CN CN201620422124.3U patent/CN205639098U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI718787B (en) * | 2019-11-28 | 2021-02-11 | 英業達股份有限公司 | Sound isolation window and heat dissipation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20180511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |