CN105370630B - Silencer - Google Patents
Silencer Download PDFInfo
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- CN105370630B CN105370630B CN201510932547.XA CN201510932547A CN105370630B CN 105370630 B CN105370630 B CN 105370630B CN 201510932547 A CN201510932547 A CN 201510932547A CN 105370630 B CN105370630 B CN 105370630B
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- noise
- hush tube
- noise elimination
- lid
- damper element
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Abstract
The invention discloses a kind of silencer.Silencer includes hush tube, anemostat, fixing pipe, lid of eliminating the noise, noise elimination cap, fixture and the damper element formed by noise elimination cotton curling multilayer, the noise elimination cotton curling number of turns of the damper element is more than 1 circle, the hush tube is located in the fixing pipe, the fixing pipe is located in the anemostat, and the tube wall of the hush tube has multiple through holes.The hush tube at least Single port is connected with the lid of eliminating the noise, the hush tube wherein Single port is connected with the noise elimination cap, and the noise elimination cap is positioned at the outside of the lid of eliminating the noise, the noise elimination covers gradually to be increased with multiple sound attenuation holes, the size of the sound attenuation hole by one end close to the hush tube to the other end.The fixture is connected to the hush tube.The quantity of the damper element is multiple, and the damper element is located in the hush tube, and the curl direction of the noise elimination cotton of adjacent damper element is opposite.Silencer of the present invention, good muffling effect.
Description
Technical field
The present invention relates to sound absorption field, more particularly to a kind of silencer.
Background technology
In some workshops, the use of equipment can usually send very big noise, such as in current sewing device,
In order to preferably be positioned to cut-parts, largely using air intake device.Air intake device is in the process of running, it will usually
Air outlet and inlet scoop produce larger noise, the working environment of worker can be had a strong impact on, to work task efficiency and mood
Bring negative impact.
The content of the invention
Based on this, it is necessary to provide a kind of sound absorber that can reduce noise.
A kind of silencer, including hush tube, anemostat, fixing pipe, eliminate the noise lid, noise elimination cap, fixture and by noise elimination cotton
The damper element formed is crimped, the noise elimination cotton curling number of turns of the damper element is more than 1 circle, and the hush tube is located at the fixing pipe
Interior, the fixing pipe is located in the anemostat, and the tube wall of the hush tube has multiple through holes；
The hush tube at least Single port is connected with the lid of eliminating the noise, and the hush tube wherein Single port is connected with described
Noise elimination cap, and the noise elimination cap is covered with multiple sound attenuation holes, the noise elimination positioned at the outside of the lid of eliminating the noise, the noise elimination
The size in hole is gradually increased by one end close to the hush tube to the other end；
The fixture is connected to the hush tube；
To be multiple, the damper element is located in the hush tube quantity of the damper element, and adjacent damper element disappears
The curl direction of sound cotton is opposite.
In one of the embodiments, the sound attenuation hole is distributed in the noise elimination and covered.
In one of the embodiments, the both ends of the hush tube are respectively connected with the lid of eliminating the noise.
In one of the embodiments, the fixture is connected to the lid of eliminating the noise.
In one of the embodiments, the fixture has fix bar, and the noise elimination is covered with fixing hole, described solid
Fixed pole wears the fixation that one of fixing hole covered of eliminating the noise, the hush tube and another noise elimination cover successively
Hole, and the fix bar and the lid connection of eliminating the noise.
In one of the embodiments, the quantity of the fix bar is multiple, the quantity of the fixing hole be it is multiple, it is described
Fix bar corresponds with the fixing hole.
In one of the embodiments, the hush tube, the anemostat and the fixing pipe are cylindrical.
In one of the embodiments, the outer wall of the hush tube and the inwall of the fixing pipe are engaged.
In one of the embodiments, the inwall of the anemostat and the wall contacts of the fixing pipe coordinate.
Silencer of the present invention, including hush tube, anemostat, fixing pipe, eliminate the noise lid, noise elimination cap, fixture and
The damper element formed by noise elimination cotton curling multilayer.Fixing pipe is located in anemostat, and hush tube is located in fixing pipe, anemostat and disappears
Sound pipe is used to eliminate the noise and the diffusion of sound, and the tube wall of hush tube has multiple through holes, and through hole also allows for the scattered of sound, to drop
The decibel of sound in a low voice.Noise elimination cap, lid of eliminating the noise are linked in sequence successively to be covered with multiple noise eliminations in the Single port of hush tube, noise elimination
Hole, the size of sound attenuation hole are gradually increased by one side to the relative one side close to hush tube；Gradual-enlargement type sound attenuation hole speed u drops
It is low, internal diameter d increases, cause overall RE to reduce, reduce turbulent flow.Speed reduces the drop for also resulting in outlet border pressure differential
It is low, reduce noise at the boundary.From the point of view of noise profile, gradual-enlargement type can be low than the outlet noise of straight barrel type.Fixture, which is connected to, to disappear
Sound pipe；It can be used for fixing hush tube in multiple desired positions by the setting of fixture, it is easy to use.The quantity of damper element
To be multiple, damper element is located in hush tube, and the curl direction of the noise elimination cotton of adjacent damper element is opposite.In the inside of hush tube
Multiple oppositely oriented damper elements are added, pass through the oppositely oriented setting of the arrangement of damper element, and adjacent damper element so that
The decibel of the interior noise of hush tube can be reduced effectively.
Silencer of the present invention, when on the air intake device or blowing device in for sewing field, than not filling
(81.6dB) reduces noise 9.6dB during silencer.Than former silencer noise reduction 6.6dB.Silencer of the present invention, noise reduction
Substantially.
Brief description of the drawings
Fig. 1 is one embodiment of the invention silencer schematic diagram；
Fig. 2 is the schematic diagram of the noise elimination lid of silencer shown in Fig. 1.
Description of reference numerals
10th, silencer；100th, hush tube；200th, fixing pipe；300th, anemostat；400a, 400b, 400c, damper element；500、
Eliminate the noise and cover；510th, sound attenuation hole；520th, fixing hole；600th, noise elimination cap；610th, it is open；700th, fixture；710a, 710b, fix bar；
800th, fastening screw.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give presently preferred embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more thorough
Comprehensively.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
The arbitrary and all combination of the Listed Items of pass.
Shown in Figure 1, present embodiment discloses a kind of silencer 10.The silencer 10 includes hush tube 100, anemostat
300th, fixing pipe 200, noise elimination lid 500, noise elimination cap 600, fixture 700 and by noise elimination cotton curling form damper element 400a,
400b、400c.The number of turns of noise elimination cotton curling is more than 1 circle, such as 1.2 circles, 1.5 circles, 2 circles, 3 circles.It is the hush tube 100, described
Anemostat 300 and the fixing pipe 200 are cylindrical.
Shown in Figure 1, the fixing pipe 200 is located in the anemostat 300, the inwall of the anemostat 300 and institute
The wall contacts for stating fixing pipe 200 coordinate.The hush tube 100 is located in the fixing pipe 200.Outside the hush tube 100
Wall and the inwall of the fixing pipe 200 are engaged.The tube wall of the hush tube 100 has multiple through holes.Through hole also allows for sound
Sound disperses, to reduce the decibel of sound.
Shown in Figure 1, the noise elimination lid 500, the noise elimination cap 600 are linked in sequence in the hush tube 100 successively
Wherein Single port, the another port of the hush tube 100 are also connected with the noise elimination lid 500.
In the present embodiment, at least Single port of hush tube 100 is connected with a noise elimination lid 500, and hush tube 100 is wherein
Single port is connected with noise elimination cap 600, and when hush tube 100 is connected with a noise elimination lid 500, noise elimination cap 600 is connected to hush tube
100 have one end of noise elimination lid 500, and noise elimination cap 600 is located at the outside of noise elimination lid 500.Disappear when hush tube 100 is connected with two
During sound lid 500, noise elimination cap 600 is connected to the wherein one end of hush tube 100, and cap 600 of eliminating the noise is located at the outside of noise elimination lid 500.
It is shown in Figure 2, there are multiple sound attenuation holes 510 on the noise elimination lid 500.The size of the sound attenuation hole 510 by by
One end to relative one end of the nearly hush tube 100 gradually increases, in gradual-enlargement type.The sound attenuation hole 510 is distributed in described disappear
On sound lid 500.The speed u of gradual-enlargement type sound attenuation hole 510 is reduced, and internal diameter d increases, is caused overall RE to reduce, is reduced turbulent flow.Speed
The reduction for also resulting in outlet border pressure differential is reduced, reduces noise at the boundary.From the point of view of noise profile, gradual-enlargement type compares straight barrel type
Outlet noise can be low.Fixture 700 is connected to hush tube 100；It can be used for fixing hush tube by the setting of fixture 700
100 in multiple desired positions, easy to use.
Described damper element 400a, 400b, 400c quantity are three, it can be appreciated that damper element 400a, 400b, 400c
Quantity can also be two, four, five etc..Described damper element 400a, 400b, 400c are located in the hush tube 100, and phase
Adjacent damper element 400a, 400b, 400c placement order is opposite so that adjacent damper element (400a and 400b, 400b with
The curl direction of noise elimination cotton 400c) is opposite.Added in the inside of hush tube 100 multiple oppositely oriented damper element 400a,
400b, 400c, by damper element 400a, 400b, 400c arrangement, and adjacent damper element (400a and 400b, 400b with
Oppositely oriented setting 400c) so that the decibel of the interior noise of hush tube 100 can be reduced effectively.
Shown in Figure 1, the fixture 700 has fix bar 710a, 710b, in the present embodiment the fix bar
Quantity is two.There is fixing hole 520 simultaneously, the quantity of the fixing hole 520 is two on the noise elimination lid 500.It is not difficult to manage
The quantity of solution, fix bar and fixing hole is corresponding, also, fix bar and the quantity of fixing hole are not limited to two, or one
It is individual, three, four etc..
Shown in Figure 1, the fix bar 710a wears fixing hole 520 on one of noise elimination lid 500, described successively
Fixing hole 520 on hush tube 100 and another noise elimination lid 500；The fix bar 710b wears one of noise elimination successively
The fixing hole 520 on fixing hole 520, the hush tube 100 and another noise elimination lid 500 on lid 500.And the fixation
Bar 710a, 710b are connected with the noise elimination lid 500, namely are connected indirectly with the hush tube 100.The fix bar 710a,
710b corresponds with the fixing hole 520.
Silencer 10 of the present invention, including hush tube 100, anemostat 300, fixing pipe 200, noise elimination lid 500, noise elimination
Cap 600, fixture 700 and damper element 400a, 400b, the 400c formed by noise elimination cotton curling multilayer.Fixing pipe 200 is positioned at expansion
In separate tube 300, hush tube 100 is located in fixing pipe 200, and anemostat 300 and hush tube 100 are used for noise elimination and the diffusion of sound,
The tube wall of hush tube 100 has multiple through holes, and through hole is easy to the scattered of sound, to reduce the decibel of sound.
Silencer 10 of the present invention, noise elimination lid 500, noise elimination cap 600 are linked in sequence in hush tube 100 wherein successively
Single port.Also, the noise elimination lid 500 is also connected with the other end port of hush tube 100.Have on noise elimination cap 600 and open
Mouth 610, the setting of the opening 610 are also beneficial to the diffusion of sound.There is multiple sound attenuation holes 510, sound attenuation hole 510 on noise elimination lid 500
Size by gradually increasing close to one side to the relative one side of hush tube 100.The size of the two-port of sound attenuation hole 510
Ratio is 1:7, namely the area of the perforate at the both ends of sound attenuation hole 510 is 1:7.Aerodynamic noise mainly divides two parts, one
It is noise caused by the instantaneous variation of outlet border air pressure to divide, and another part is noise caused by internal pipeline turbulent flow.Want to subtract
Few aerodynamic noise approach is mainly by reducing border transition pressure differential, the turbulence noise inside less pipeline.For cylinder
For shape pipeline, the ＞ 2300 of Reynolds number RE=u*d/ μ=48000, so substantial amounts of turbulent flow internally be present, noise is produced.Gradually
The speed u of expansion formula sound attenuation hole 510 is reduced, and internal diameter d increases, is caused overall RE to reduce, is reduced turbulent flow.Speed is reduced and also resulted in
The reduction of outlet border pressure differential, reduces noise at the boundary.From the point of view of noise profile, outlet noise meeting of the gradual-enlargement type than straight barrel type
Lower, the expansion angle of different proportion is all very big to influence of noise, 1 from the point of view of simulation result:7 exit flows are relatively stable, turbulent flow
Less, corresponding noise also can be smaller.Also there is different for the flaring mouth of different proportion, degree of expansion, which crosses conference, causes generation office
Portion's turbulent flow and pressure difference change excessive local boundary noise, so in the presence of the optimal degree of expansion of a noise, are obtained by simulation calculation
1 arrived:7 degree of expansion noise is relatively low.
Silencer 10 of the present invention, when on the air intake device or blowing device in for sewing field, than not
(81.6dB) reduces noise 9.6dB when filling silencer 10.Than the former noise reduction 6.6dB of silencer 10.Silencer 10 of the present invention,
Noise reduction is obvious.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
- A kind of 1. silencer, it is characterised in that including hush tube, anemostat, fixing pipe, eliminate the noise lid, noise elimination cap, fixture and The damper element formed by noise elimination cotton curling, the noise elimination cotton curling number of turns of the damper element are more than 1 circle, and the hush tube is positioned at described In fixing pipe, the fixing pipe is located in the anemostat, and the tube wall of the hush tube has multiple through holes；The two-port of the hush tube is respectively connected with the lid of eliminating the noise, and the hush tube wherein Single port is connected with the noise elimination Cap, and the noise elimination cap is covered with multiple sound attenuation holes positioned at the outside of the lid of eliminating the noise, the noise elimination, the sound attenuation hole Size is gradually increased by one end close to the hush tube to the other end；The fixture is connected to the hush tube；The quantity of the damper element is multiple, and the damper element is located in the hush tube, and the noise elimination cotton of adjacent damper element Curl direction it is opposite.
- 2. silencer according to claim 1, it is characterised in that the sound attenuation hole is distributed in the noise elimination and covered.
- 3. silencer according to claim 1, it is characterised in that the fixture is connected to the lid of eliminating the noise.
- 4. silencer according to claim 3, it is characterised in that the fixture has fix bar, and the noise elimination covers With fixing hole, the fix bar wears one of described fixing hole covered of eliminating the noise, the hush tube and another successively The individual fixing hole covered of eliminating the noise, and the fix bar and the lid connection of eliminating the noise.
- 5. silencer according to claim 4, it is characterised in that the quantity of the fix bar is multiple, the fixing hole Quantity to be multiple, the fix bar corresponds with the fixing hole.
- 6. silencer according to claim 1 or 2, it is characterised in that the hush tube, the anemostat and described solid Fixed tube is cylindrical.
- 7. silencer according to claim 6, it is characterised in that the outer wall of the hush tube and the inwall of the fixing pipe It is engaged.
- 8. silencer according to claim 6, it is characterised in that the inwall of the anemostat and the outer wall of the fixing pipe It is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510932547.XA CN105370630B (en) | 2015-12-14 | 2015-12-14 | Silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510932547.XA CN105370630B (en) | 2015-12-14 | 2015-12-14 | Silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105370630A CN105370630A (en) | 2016-03-02 |
| CN105370630B true CN105370630B (en) | 2017-11-17 |
Family
ID=55373139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510932547.XA Active CN105370630B (en) | 2015-12-14 | 2015-12-14 | Silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370630B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487289A (en) * | 1982-03-01 | 1984-12-11 | Nelson Industries, Inc. | Exhaust muffler with protective shield |
| CN201428494Y (en) * | 2009-06-11 | 2010-03-24 | 天津市大东微滤膜科技有限公司 | Double-layer porous diffusion muffler |
| CN201650411U (en) * | 2010-04-01 | 2010-11-24 | 杭州天利空分设备制造有限公司 | Compound diffusion-type silencer |
| CN202056068U (en) * | 2011-05-15 | 2011-11-30 | 商丘市金桥金属制品有限公司 | Silencing device for local ventilator |
| CN202768127U (en) * | 2012-09-25 | 2013-03-06 | 赵松 | Automobile silencer |
| CN103671281A (en) * | 2013-11-06 | 2014-03-26 | 曹莹莹 | Air blower outlet pipeline type silencer |
| CN204419311U (en) * | 2015-01-20 | 2015-06-24 | 江西江隆汽车消声器有限公司 | A kind of exhaust purging muffler |
| CN205225874U (en) * | 2015-12-14 | 2016-05-11 | 广东溢达纺织有限公司 | Fixed silencer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6926824B2 (en) * | 2003-08-13 | 2005-08-09 | Jen-Chieh Wang | Purifier with molecular-rearranging device |
| US8602157B2 (en) * | 2011-11-03 | 2013-12-10 | Don Emler | Q4 muffler assembly |
-
2015
- 2015-12-14 CN CN201510932547.XA patent/CN105370630B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487289A (en) * | 1982-03-01 | 1984-12-11 | Nelson Industries, Inc. | Exhaust muffler with protective shield |
| CN201428494Y (en) * | 2009-06-11 | 2010-03-24 | 天津市大东微滤膜科技有限公司 | Double-layer porous diffusion muffler |
| CN201650411U (en) * | 2010-04-01 | 2010-11-24 | 杭州天利空分设备制造有限公司 | Compound diffusion-type silencer |
| CN202056068U (en) * | 2011-05-15 | 2011-11-30 | 商丘市金桥金属制品有限公司 | Silencing device for local ventilator |
| CN202768127U (en) * | 2012-09-25 | 2013-03-06 | 赵松 | Automobile silencer |
| CN103671281A (en) * | 2013-11-06 | 2014-03-26 | 曹莹莹 | Air blower outlet pipeline type silencer |
| CN204419311U (en) * | 2015-01-20 | 2015-06-24 | 江西江隆汽车消声器有限公司 | A kind of exhaust purging muffler |
| CN205225874U (en) * | 2015-12-14 | 2016-05-11 | 广东溢达纺织有限公司 | Fixed silencer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105370630A (en) | 2016-03-02 |
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