CN205920755U - Full microperforated absorber silencer - Google Patents

Full microperforated absorber silencer Download PDF

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Publication number
CN205920755U
CN205920755U CN201620939904.5U CN201620939904U CN205920755U CN 205920755 U CN205920755 U CN 205920755U CN 201620939904 U CN201620939904 U CN 201620939904U CN 205920755 U CN205920755 U CN 205920755U
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China
Prior art keywords
micropunch
inlayer
internal layer
acoustic filter
silencer
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Active
Application number
CN201620939904.5U
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Chinese (zh)
Inventor
唐正兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Sanyuan Environmental Governance Co Ltd
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Sichuan Sanyuan Environmental Governance Co Ltd
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Priority to CN201620939904.5U priority Critical patent/CN205920755U/en
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Abstract

The utility model relates to a full microperforated absorber silencer, its characterized in that: by in micropunch left side inlayer, micropunch right side inlayer, the micropunch under inlayer and the micropunch inlayer constitute closed cavity no. 1, be equipped with multilayer micropunch anechoic sheet in the cavity, in micropunch left side inlayer, micropunch right side inlayer, the micropunch under inlayer and the micropunch the adjacent department of inlayer fix through being connected the angle bar, in micropunch left side inlayer, micropunch right side inlayer, the micropunch under inlayer and the micropunch surface of inlayer be provided with on silencer left side shell, silencer right shell, the silencer shell under shell and the silencer respectively, the both ends of cavity are equipped with the flange, the utility model discloses a full microperforated absorber of multilayer falls and makes an uproar, compares with traditional packing sound absorbent's silencer, does not fill any sound absorbent, can and avoid sound absorbent's fibre to reveal the problem, can be applicable to the place that the cleanliness factor expected much and the place of other special requirements.

Description

Full microperforated absorber acoustic filter
Technical field
This utility model is related to aerodynamic noise control field, especially a kind of full microperforated absorber acoustic filter.
Background technology
In prior art, anechoic sheet in ventilating system more application, has good noise elimination effect for pneumatic noise, And traditional anechoic sheet how by perforated metal panel as facing material, the sound-absorbing material such as internal filled glass fiber.Although it is traditional Mode can play the effect reducing pneumatic noise, but it there is the risk of sound-absorbing material inefficacy and sound-absorbing material escapes to ring The shortcoming that secondary pollution is caused in border.
Therefore, for avoiding above-mentioned technical problem, it is necessory to provide one kind to have structure improved acoustic filter, existing to overcome There is the described defect in technology.
Utility model content
In order to overcome above-mentioned weak point present in prior art, the purpose of this utility model is to provide one kind entirely micro- Perforation sound absorption structure acoustic filter.
In order to reach above-mentioned purpose, this utility model adopts following concrete technical scheme: full microperforated absorber disappears Sound device, by the cavity of internal layer forming closed under internal layer in the left inside layer of micropunch, the right internal layer of micropunch, micropunch and micropunch One, it is provided with multilamellar micropunch anechoic sheet in described cavity, the left inside layer of described micropunch, the right internal layer of micropunch, internal layer in micropunch Fixed by connecting angle iron with internal layer adjacent under micropunch, the left inside layer of described micropunch, the right internal layer of micropunch, interior in micropunch Under layer and micropunch, the surface of internal layer is respectively arranged with the left outside shell of acoustic filter, acoustic filter right casing, shell and noise elimination on acoustic filter Device lower casing, the two ends of described cavity are provided with flange.
Further, the left inside layer of micropunch described in the utility model, the right internal layer of micropunch, internal layer and micropunch in micropunch Lower internal layer is all using hollow structure.
Further, the left outside shell of acoustic filter described in the utility model, acoustic filter right casing, shell and acoustic filter on acoustic filter Lower casing is all using hollow structure.
This utility model advantage compared with prior art is: this utility model is entered using the full microperforated absorber of multilamellar Row noise reduction, compared with the acoustic filter of traditional filling sucting sound material, is not filled with any sound-absorbing material, and can avoid sound absorption material The fiber leakage problem of material, can be applied to the high place of purity requirements and the place of other particular/special requirement, such as superhigh temperature, The noise elimination noise reduction in the places such as ultralow temperature, high wind pressure and wind speed.In addition, for the soundproof effect improving acoustic filter, big according to cavity Little, the multilamellar micropunch anechoic sheet of respective numbers, respectively cavity can be increased in cavity, reach the noise elimination of bigger effect.This Inventive structure advantages of simple, easy for installation, long service life, can effectively substitute traditional ventilation silencer.
Brief description
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the a-a of Fig. 1 to sectional view;
Fig. 3 is the b-b of Fig. 1 to sectional view;
The utility model is described in further detail below in conjunction with the accompanying drawings.
Specific embodiment
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings to this The specific embodiment of utility model is described in detail.
Elaborate detail in order to fully understand this utility model in the following description.But this utility model can To be implemented different from alternate manner described here with multiple, those skilled in the art can be without prejudice to this utility model intension In the case of do similar popularization.Therefore this utility model is not embodied as being limited by following public.
Refer to Figure of description 1 to shown in Fig. 3, this utility model is full microperforated absorber acoustic filter, is worn by micro- The left inside layer in hole 1, the right internal layer of micropunch 2, under internal layer 3 and micropunch in micropunch internal layer 4 forming closed cavity 1, described Be provided with multilamellar micropunch anechoic sheet 6 in cavity 5, the left inside layer 1 of described micropunch, the right internal layer of micropunch 2, in micropunch internal layer 3 with Under micropunch, to pass through connecting angle iron 7 fixing for internal layer 4 adjacent, the left inside layer 1 of described micropunch, the right internal layer of micropunch 2, in micropunch Under internal layer 3 and micropunch, the surface of internal layer 4 is respectively arranged with the left outside shell of acoustic filter 8, acoustic filter right casing 9, shell on acoustic filter 10 and acoustic filter lower casing 11, the two ends of described cavity 5 are provided with flange 12.This utility model adopts multilamellar full micropunch sound absorption knot Structure carries out noise reduction, in addition, for the soundproof effect improving acoustic filter, according to the size of cavity, can increase corresponding in cavity The multilamellar micropunch anechoic sheet of quantity, respectively cavity, reach the noise elimination of bigger effect.Present configuration advantages of simple, installation side Just, long service life, can effectively substitute traditional ventilation silencer.
It should be noted that the left inside layer 1 of micropunch described in the utility model, the right internal layer of micropunch 2, internal layer 3 in micropunch With internal layer under micropunch 4 all using hollow structure.
Also, it should be noted shell on the left outside shell 8 of acoustic filter described in the utility model, acoustic filter right casing 9, acoustic filter 10 and acoustic filter lower casing 11 all using hollow structure.
But, above-mentioned specific embodiment is exemplary, is to preferably enable those skilled in the art Understand this patent it is impossible to be not understood as this patent is included with the restriction of scope;As long as the institute of spirit according to disclosed in this patent Any equivalent change made or modification, each fall within the scope that this patent includes.

Claims (3)

1. full microperforated absorber acoustic filter it is characterised in that: by the left inside layer of micropunch, the right internal layer of micropunch, micropunch The cavity one of internal layer forming closed under internal layer and micropunch, is provided with multilamellar micropunch anechoic sheet in described cavity, described micro- wear The left inside layer in hole, the right internal layer of micropunch, internal layer adjacent is fixed by connecting angle iron under internal layer and micropunch in micropunch, described micro- Bore a hole left inside layer, the right internal layer of micropunch, to be respectively arranged with acoustic filter left outside on the surface of internal layer under internal layer and micropunch in micropunch Shell and acoustic filter lower casing on shell, acoustic filter right casing, acoustic filter, the two ends of described cavity are provided with flange.
2. as claimed in claim 1 full microperforated absorber acoustic filter it is characterised in that: the left inside layer of described micropunch, micro- Bore a hole right internal layer, under internal layer and micropunch in micropunch internal layer all using hollow structure.
3. as claimed in claim 1 full microperforated absorber acoustic filter it is characterised in that: the left outside shell of described acoustic filter, disappear On sound device right casing, acoustic filter, shell and acoustic filter lower casing are all using hollow structure.
CN201620939904.5U 2016-08-26 2016-08-26 Full microperforated absorber silencer Active CN205920755U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620939904.5U CN205920755U (en) 2016-08-26 2016-08-26 Full microperforated absorber silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620939904.5U CN205920755U (en) 2016-08-26 2016-08-26 Full microperforated absorber silencer

Publications (1)

Publication Number Publication Date
CN205920755U true CN205920755U (en) 2017-02-01

Family

ID=57868539

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620939904.5U Active CN205920755U (en) 2016-08-26 2016-08-26 Full microperforated absorber silencer

Country Status (1)

Country Link
CN (1) CN205920755U (en)

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