CN206131784U - Labyrinth silencer - Google Patents
Labyrinth silencer Download PDFInfo
- Publication number
- CN206131784U CN206131784U CN201621073371.3U CN201621073371U CN206131784U CN 206131784 U CN206131784 U CN 206131784U CN 201621073371 U CN201621073371 U CN 201621073371U CN 206131784 U CN206131784 U CN 206131784U
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- opening
- noise elimination
- anechoic sheet
- noise
- housing
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Abstract
The utility model discloses a labyrinth silencer belongs to silencer technical field, aims at providing a labyrinth silencer, has the advantage that realizes turn, reducing when eliminating the noise, and its technical scheme main points are labyrinth silencer, including the noise elimination casing, noise elimination casing one end is sealed, and the first opening that supplies gas flow is seted up to the other end, the second opening that supplies gas flow is seted up to the noise elimination casing on the lateral wall of confined one end, noise elimination shells inner wall goes up and be equipped with a plurality of anechoic sheets that are parallel to each other between second opening and first opening, the anechoic sheet sets up along noise elimination casing length direction, the noise elimination casing is equipped with the connecting pipe in second open -ended position, the bore of connecting pipe reduces to keeping away from second opening direction gradually.
Description
Technical field
This utility model is related to acoustic filter technical field, more particularly to a kind of labyrinth silencer.
Background technology
Acoustic filter is to allow air-flow to pass through, but can prevent or reduce a kind of device of sound transmission, is to eliminate air to move
The important measures of power noise.Acoustic filter can stop the propagation of sound wave, it is allowed to which air-flow passes through, and be the effective work for controlling noise
Tool.
The Chinese patent of Publication No. CN202747834U discloses a kind of labyrinth silencer, and it is included as shell
Metal tube, the anechoic sheet being arranged in the metal tube, the ventilating duct between the adjacent anechoic sheet；It is each described
One end of anechoic sheet is provided with 1～5 opening, and the length of each opening exceedes the centrage of the noise elimination leaf length, adjacent
The opening of the anechoic sheet is being crisscross arranged towards on air inlet and air outlet direction.This utility model is due to by adjacent anechoic sheet
Opening be crisscross arranged on the direction into and out of air port, and the Opening length of adjacent anechoic sheet has an overlap, therefore when air-flow is from outer
When boundary enters induced cooling tower by this utility model, the circulation area of whole acoustic filter interior air-flow is increased, effectively
While reducing the pressure loss of air inlet, soundproof effect is improve.In some occasions, we are imitated to realize certain noise elimination
Really, it is necessary to which acoustic filter has turning, reducing and noise elimination purpose, and then meets use, but the labyrinth silencer only has one
Fixed noise elimination function, performance are single, and use range is little.
Utility model content
The purpose of this utility model is to provide a kind of labyrinth silencer, with realization turning, reducing while eliminating the noise
Advantage.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of labyrinth type is eliminated the noise
Device, including noise elimination housing, the noise elimination shell one end closing, the other end offer the first opening of supplied gas flowing, described to disappear
Sound housing offers the second opening of supplied gas flowing on the side wall of one end of closing, second in the noise elimination inner walls
Some anechoic sheets being parallel to each other are provided between opening and the first opening, the anechoic sheet is arranged along noise elimination shell length direction,
The noise elimination housing is provided with connecting tube in the position of the second opening, the mouth of the connecting tube radially away from the second opening direction gradually
Reduce.
By adopting above-mentioned technical proposal, when noise elimination housing is eliminated the noise, gas is entered by the connecting tube of the second opening and is disappeared
The resistance of gas flowing in sound housing, as the bore of connecting tube gradually increases, is reduced, partial noise, Zhi Houqi is reduced
Body is circulated by the ventilation road that adjacent anechoic sheet is constituted when anechoic sheet, by gas when through ventilation road
Noise by anechoic sheet absorb, further up to eliminate the noise purpose, afterwards gas by first opening flow out, now first opening and
The gas flow direction of the second opening is vertical, where being mountable to turn, realizes the several functions of turning, reducing and noise elimination.
This utility model is further arranged to：The anechoic sheet two ends are equipped with conical baffle.
Gas is reduced into the resistance between adjacent anechoic sheet by adopting the setting of above-mentioned technical proposal, deflector,
Beneficial to the flowing of gas, the drag losses of labyrinth silencer is reduced.
This utility model is further arranged to：Some circular holes being interspersed are offered on the anechoic sheet side, it is adjacent
The center of circular hole described in each column is not on the same line.
Cause on anechoic sheet, to form multiple cavitys by adopting above-mentioned technical proposal, the setting of circular hole, air-flow is in acoustic filter
Many flow controls of interior Jing are entered in cavity, are changed the audio frequency of Primordial Qi stream step by step, are played certain acoustically effective.
This utility model is further arranged to：The anechoic sheet to second opening distance more than to first opening away from
From.
By adopting above-mentioned technical proposal, the distance of anechoic sheet to the second opening is more than the distance to the first opening so that
Anechoic sheet has the space of one section of steady air flow when being open vertically into in noise elimination housing from second, and then air-flow is being entered
Enter gas flow rate when anechoic sheet is eliminated the noise stable.
This utility model is further arranged to：The bore of first opening and the second opening is all higher than anechoic sheet and is eliminating the noise
The width of distribution in housing.
By adopting above-mentioned technical proposal, the bore of the first opening and the second opening is all higher than into anechoic sheet in noise elimination housing
The width of interior distribution, and then the section of gas flow rate is caused more than the area of anechoic sheet distribution so that each anechoic sheet is all played
Certain noise elimination effect, so that substantial amounts of gas increases disappearing for acoustic filter in noise elimination housing while making full use of anechoic sheet
Acoustic efficiency.
In sum, this utility model has the advantages that：First is arranged in one end of noise elimination housing to be open, it is another
Side wall opens up the second opening, changes the direction of gas flowing, where may be mounted at needs turning, opens in gas second
The connecting tube that mouthful place is arranged reduces the resistance of gas flowing, reduces the noise of part, beneficial to installation, in the second opening and the
Anechoic sheet is set between one opening, the soundproof effect of acoustic filter is further increased so that acoustic filter has simultaneously eliminates the noise, turns
With the function of reducing, simple structure install convenient.
Description of the drawings
Fig. 1 is a kind of dimensional structure diagram of labyrinth silencer；
Fig. 2 is a kind of internal structure schematic diagram of labyrinth silencer；
Fig. 3 is a kind of structural representation for embodying circular hole of labyrinth silencer；
Fig. 4 is a kind of distributed architecture schematic diagram for embodying anechoic sheet of labyrinth silencer；
Fig. 5 is a kind of structural representation for embodying baffle plate of labyrinth silencer.
In figure, 1, noise elimination housing；11st, the first opening；12nd, the second opening；13rd, anechoic sheet；131st, deflector；132nd, circle
Hole；133rd, baffle plate；14th, connecting tube；15th, acoustical cotton；16th, torsion spring；17th, composite damping sound insulationg board.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing.
A kind of labyrinth silencer, reference Fig. 1, Fig. 2 and Fig. 3, including noise elimination housing 1, are filled with 1 inwall of noise elimination housing
Deadener, for eliminating the noise, the closing of 1 one end of noise elimination housing, the other end offer the first opening 11 of supplied gas flowing, noise elimination shell
Body 1 offers the second opening 12 of supplied gas flowing on the side wall of one end of closing so that the first opening 11 air-flows and second
12 airflow directions that are open are vertical, where being mountable to turn, expand the use range of acoustic filter；In gas by the second opening
12 when entering noise elimination housing 1, and noise elimination housing 1 is provided with connecting tube 14 in the position of the second opening 12, and the bore of connecting tube 14 is to remote
It is gradually reduced from the second 12 directions of opening so that gas as the bore of connecting tube 14 gradually increases, subtracts into after connecting tube 14
The resistance of little gas flowing, reduces partial noise；In addition in the second opening 12 and the first opening on 1 inwall of noise elimination housing
Some anechoic sheets 13 being parallel to each other are provided between 11, anechoic sheet 13 is arranged along 1 length direction of noise elimination housing, adjacent anechoic sheet
13 form ventilation road, and when gas stream enters to divulge information road, noise is absorbed by anechoic sheet 13, further up to the mesh eliminated the noise
's；Some circular holes 132 being interspersed are offered on 13 side of anechoic sheet, the center of adjacent each column circular hole 132 does not exist
On same straight line, circular hole 132 causes to form multiple cavitys on anechoic sheet 13, and air-flow many flow controls of Jing in the acoustic filter enter cavity
It is interior, change the audio frequency of Primordial Qi stream step by step, play certain acoustically effective.
With reference to Fig. 2 and Fig. 3, in gas flow ventilation road, 13 two ends of anechoic sheet are equipped with conical baffle 131, subtract
The resistance that little gas is entered between adjacent anechoic sheet 13, beneficial to the flowing of gas, the resistance for reducing labyrinth silencer is damaged
Lose；The distance of the opening of anechoic sheet 13 to the second 12 is more than the distance to the first opening 11 so that anechoic sheet 13 is from the second opening
12 vertically into in noise elimination housing 1 when have the space of one section of steady air flow, and then air-flow is being eliminated the noise into anechoic sheet 13
When gas flow rate it is stable；In addition the bore of the first opening 11 and the second opening 12 is all higher than anechoic sheet 13 in the noise elimination housing 1 point
The width of cloth so that each anechoic sheet 13 all plays certain noise elimination effect, causes a large amount of while making full use of anechoic sheet 13
Gas enter the acoustical absorptivity of increase acoustic filter in noise elimination housing 1.
With reference to Fig. 4 and Fig. 5, acoustical cotton 15 is equipped with 14 inwall of noise elimination housing 1 and connecting tube in addition, is entered in acoustic filter
Before row is eliminated the noise, acoustical cotton 15 carries out part sound-absorbing to noise, acoustic filter is eliminated the noise in order to reduce the vibration of itself of noise elimination housing 1
Impact, therefore be provided with 1 outer wall of noise elimination housing with noise elimination housing 1 coordinate composite damping sound insulationg board 17.
With reference to Fig. 5, for the ease of the anechoic sheet 13 in dismounting and change noise elimination housing 1, noise elimination housing 1 in anechoic sheet 13 two
Side is provided with baffle plate 133, and one end of two baffle plates 133 is connected by torsion spring 16 between noise elimination housing 1 respectively, the other end with it is adjacent
Baffle plate 133 is contradicted, and when needing to be put into anechoic sheet 13 between two baffle plates 133, one end that baffle plate 133 is contradicted separates now
Torsion spring 16 is had elastic force by compression, and noise elimination is slipped between two baffle plates 133, after baffle plate 133 are unclamped, the elastic force of torsion spring 16
Baffle plate 133 is promoted to 13 direction of anechoic sheet, and then anechoic sheet 13 is fixed between baffle plate 133.
This specific embodiment is only which is not to restriction of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification for not having creative contribution after this specification is read as needed to the present embodiment, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (5)
1. a kind of labyrinth silencer, it is characterised in that：Including noise elimination housing（1）, the noise elimination housing（1）One end is closed, separately
One end offers the first opening of supplied gas flowing（11）, the noise elimination housing（1）Offer on the side wall of one end of closing
Second opening of supplied gas flowing（12）, the noise elimination housing（1）In the second opening on inwall（12）With the first opening（11）It
Between be provided with some anechoic sheets being parallel to each other（13）, the anechoic sheet（13）Along noise elimination housing（1）Length direction is arranged, described to disappear
Sound housing（1）In the second opening（12）Position be provided with connecting tube（14）, the connecting tube（14）Mouth open radially away from second
Mouthful（12）Direction is gradually reduced.
2. labyrinth silencer according to claim 1, it is characterised in that：The anechoic sheet（13）Two ends are equipped with taper
Deflector（131）.
3. labyrinth silencer according to claim 2, it is characterised in that：The anechoic sheet（13）If offering on side
The dry circular hole being interspersed（132）, circular hole described in adjacent each column（132）Center not on the same line.
4. labyrinth silencer according to claim 1, it is characterised in that：The anechoic sheet（13）To the second opening（12）
Distance more than to first opening（11）Distance.
5. labyrinth silencer according to claim 1, it is characterised in that：First opening（11）With the second opening
（12）Bore be all higher than anechoic sheet（13）In noise elimination housing（1）The width of interior distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073371.3U CN206131784U (en) | 2016-09-22 | 2016-09-22 | Labyrinth silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073371.3U CN206131784U (en) | 2016-09-22 | 2016-09-22 | Labyrinth silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206131784U true CN206131784U (en) | 2017-04-26 |
Family
ID=58569698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621073371.3U Active CN206131784U (en) | 2016-09-22 | 2016-09-22 | Labyrinth silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206131784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116576325A (en) * | 2023-07-13 | 2023-08-11 | 江苏华东正大空调设备有限公司 | Muffler for ventilating duct |
-
2016
- 2016-09-22 CN CN201621073371.3U patent/CN206131784U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116576325A (en) * | 2023-07-13 | 2023-08-11 | 江苏华东正大空调设备有限公司 | Muffler for ventilating duct |
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