CN102359407A - Multi-cavity labyrinth silencer - Google Patents
Multi-cavity labyrinth silencer Download PDFInfo
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- CN102359407A CN102359407A CN2011103360700A CN201110336070A CN102359407A CN 102359407 A CN102359407 A CN 102359407A CN 2011103360700 A CN2011103360700 A CN 2011103360700A CN 201110336070 A CN201110336070 A CN 201110336070A CN 102359407 A CN102359407 A CN 102359407A
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Abstract
The invention relates to a multi-cavity labyrinth silencer, which comprise a shell, wherein a front end cover and a rear end cover are arranged at the two ends of the shell respectively; a front partition plate, a middle partition plate and a rear partition plate are used for partitioning the shell into a first chamber, a second chamber, a third chamber and a fourth chamber; a first core pipe, a second core pipe and a third core pipe are arranged in the shell; the first core pipe is started from the front partition plate, passes through the second chamber, is stopped in the third chamber and is fixed on the middle partition plate; the second core pipe is started from the second chamber, passes through the third chamber, is stopped in the fourth chamber and is fixed on the middle partition plate; the third core pipe is started from the third chamber, is stopped in the fourth chamber and is fixed on the rear partition plate; and the rear end of the second core pipe is sleeved into the third core pipe. The silencer has a simple, compact and reasonable structure; due to the adoption of a multi-section segmentation silencing mode, noise at all frequencies can be reduced; and the silencer has an obvious silencing effect and can effectively reduce exhaust noise.
Description
Technical field
The present invention relates to a kind of silencing apparatus, especially relate to the lost silencing apparatus of a kind of multi-cavity.
Background technique
At present, along with fast development of society, the use of engineering machinery in society more and more widely mainly from motor, adopts silencing apparatus rational in infrastructure can reduce noise pollution greatly to the noise of engineering machinery.Present existing silencing apparatus can be divided into six types by noise elimination mechanism, i.e. dissipative muffler, reactive muffler, impedance complex formula silencing apparatus, micropunch plate muffler, micropole diffusor and active silencer.Adopt impedance complex formula silencing apparatus now mostly; But this acoustic wave filter structure is complicated, weight is big, high temperature oxidation sound absorption filler, and high velocity air impacts the sound absorption filler, reasons such as water vapor permeable sound absorption filler; Cause frequent, the noise elimination weak effect of silencing apparatus maintenance, situation such as life cycle weak point.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, thereby a kind of multi-cavity silencing apparatus of getting lost is provided, this silencing apparatus adopts more piece segmentation to eliminate the noise, and can cut down the noise of each frequency; The noise elimination effect is obvious, can effectively reduce exhaust sound.
According to technological scheme provided by the invention; The lost silencing apparatus of a kind of multi-cavity comprises housing; The two ends of said housing are separately installed with front cover and rear end cover, and an end of housing is a suction port, compress with the front cover flange to be connected; In housing, be provided with preceding dividing plate, central diaphragm and rear bulkhead, housing be divided into first chamber, second chamber, the 3rd chamber and the 4th chamber by preceding dividing plate, central diaphragm and rear bulkhead; Be provided with the first core pipe, the second core pipe, the 3rd core pipe in the said housing; The said first core pipe originates in preceding dividing plate, passes second chamber, ends in the 3rd chamber, is fixed on the central diaphragm; The second core pipe originates in second chamber, passes the 3rd chamber, ends in the 4th chamber, is fixed on the central diaphragm; The 3rd core pipe originates in the 3rd chamber, ends in the 4th chamber, is fixed on the rear bulkhead, and wherein be inserted in the 3rd core pipe rear end of the second core pipe; Along being glued with sound-absorbing material on the inwall of peripheral direction, said sound-absorbing material is connected with perforated plate at housing.
Said housing is provided with suction port near a side of front cover and is connected through seam with suction tude, guarantees its tightness; The other end is provided with the air outlet, compresses with the rear end cover flange to be connected, and guarantees its tightness; Said housing has the air outlet near a side of rear end cover and is connected through seam with outlet pipe, guarantees its tightness.
Be respectively equipped with a plurality of circular holes that differ in the aperture on the said first core pipe, the second core pipe, the 3rd core pipe and the perforated plate, be used for passing through of air-flow.
Said suction tude, outlet pipe are respectively equipped with a plurality of circular holes that differ in the aperture, are used for passing through of air-flow.
Compared with present technology the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; Adopt the more piece segmentation to eliminate the noise, can cut down the noise of each frequency; The noise elimination effect is obvious, can effectively reduce exhaust sound.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Following the present invention will combine the embodiment in the accompanying drawing to further describe:
As shown in Figure 1, comprise housing 1, front cover 2, rear end cover 3, suction tude 4, outlet pipe 5, preceding dividing plate 6, central diaphragm 7, rear bulkhead 8, first chamber 9, second chamber 10, the 3rd chamber 11, the 4th chamber 12, the first core pipe 13, the second core pipe 14, the 3rd core pipe 15, perforated plate 16 and sound-absorbing material 17 etc.
The two ends of suppressor case 1 of the present invention are separately installed with front cover 2 and rear end cover 3, and an end of housing 1 is a suction port, compresses with front cover 2 flange to be connected; Guarantee its tightness; Have suction port at housing 1 near a side of front cover 2, be connected through seam, guarantee its tightness with suction tude 4; The other end is the air outlet, compresses with rear end cover 3 flange to be connected, and guarantees its tightness, has the air outlet at housing 1 near a side of rear end cover 3, is connected through seam with outlet pipe 5, guarantees its tightness.Dividing plate 6, central diaphragm 7 and rear bulkhead 8 before in housing 1, being provided with are divided into first chamber 9, second chamber 10, the 3rd chamber 11 and the 4th chamber 12 by preceding dividing plate 6, central diaphragm 7 and rear bulkhead 8 with housing 1.Wherein first chamber, 9 maximums have guaranteed that air inlet has enough spatial expansions, and the 4th chamber 12 is smaller, and the residue intermediate portion is divided equally by second chamber 10 and the 3rd chamber 11, seal intactly between each chamber, have avoided collaborating each other.Be provided with the first core pipe 13, the second core pipe 14,15 3 core pipes of the 3rd core pipe in the said housing 1, dividing plate 6 before wherein the first core pipe 13 originates in passes second chamber 10, ends in the 3rd chamber 11, is fixed on the central diaphragm 7; The second core pipe 14 originates in second chamber 10, passes the 3rd chamber 11, ends in the 4th chamber 12, is fixed on the central diaphragm 7; The 3rd core pipe 15 originates in the 3rd chamber 11, ends in the 4th chamber 12, and wherein be inserted in the 3rd core pipe 15 rear end of the second core pipe 14, and said the 3rd core pipe 15 is fixed on the rear bulkhead 8.At housing 1 along being glued with sound-absorbing material 17, sound-absorbing material such as glass silk flosssilk wadding on the inwall on the peripheral direction.Sound-absorbing material 17 closely is connected with perforated plate 16.All be respectively equipped with a plurality of circular holes that differ in the aperture on suction tude 4, outlet pipe 5, the first core pipe 13, the second core pipe 14, the 3rd core pipe 15 and the perforated plate 16, be used for passing through of air-flow.
Silencing apparatus of the present invention, waste gas gets in the suppressor case 1 through suction tude 4, is covered with the consistent circular hole in aperture on the suction tude 4.In gas gets into housing, flow out entering first chamber 9 circular hole on suction tude 4, because first chamber, 9 spaces are very big; So gas produces resonance in first chamber 9, open a hole on the preceding dividing plate 6, connects the first core pipe 13 through seam; Gas all gets in the first core pipe 13 through the hole on the preceding dividing plate 6; A part of then gas gets into 10 generations of second chamber through the circular hole on the first core pipe 13 and gets lost, and residual gas then gets into the 3rd chamber 11, and the gas that gets into second chamber 10 gets in the second core pipe 14 through the circular hole on the second core pipe 14; Flow to the 3rd core pipe 15; Gas in the 3rd chamber 11 also gets in the 3rd core pipe 15 through the circular hole on the 3rd core pipe 15 simultaneously, and the two-way sound wave is interfered each other in the 3rd core pipe, thereby has offset most of medium and low frequency noise; Gas in last the 3rd core pipe 15 gets in the 4th chamber 12 through circular hole, then discharges silencing apparatus through outlet pipe 5.At housing 1 along being glued with sound-absorbing material 17 on the inwall of peripheral direction; Sound-absorbing material 17 closely is connected with perforated plate 16, so, in whole noise elimination process; Sound-absorbing material 17 will cause absorption from what gas flow in the high-frequency noise of motor and the silencing apparatus produced, thereby weaken high-frequency noise.
The present invention is simple at this acoustic wave filter structure, under the compact prerequisite, can effectively reduce noise.
Claims (6)
1. the lost silencing apparatus of multi-cavity comprises housing (1); It is characterized in that: the two ends of said housing (1) are separately installed with front cover (2) and rear end cover (3); One end of housing (1) is a suction port; Compress with front cover (2) flange and to be connected; In housing (1), be provided with preceding dividing plate (6), central diaphragm (7) and rear bulkhead (8), housing (1) be divided into first chamber (9), second chamber (10), the 3rd chamber (11) and the 4th chamber (12) by preceding dividing plate (6), central diaphragm (7) and rear bulkhead (8); Be provided with the first core pipe (13), the second core pipe (14), the 3rd core pipe (15) in the said housing (1); The said first core pipe (13) passes second chamber (10) and is fixed on the central diaphragm (7); The said second core pipe (14) passes the 3rd chamber (11) and is fixed on the central diaphragm (7); Said the 3rd core pipe (15) is fixed on the rear bulkhead (8), and wherein be inserted in the 3rd core pipe (15) rear end of the second core pipe (14); Along being glued with sound-absorbing material (17) on the inwall of peripheral direction, said sound-absorbing material (17) is connected with perforated plate (16) at housing (1).
2. a kind of multi-cavity as claimed in claim 1 silencing apparatus of getting lost is characterized in that: said housing (1) is provided with suction port near a side of front cover (2) and is connected through seam with suction tude (4).
3. a kind of multi-cavity as claimed in claim 1 silencing apparatus of getting lost is characterized in that: said housing (1) has the air outlet near a side of rear end cover (3) and is connected through seam with outlet pipe (5).
4. a kind of multi-cavity as claimed in claim 1 silencing apparatus of getting lost is characterized in that: be respectively equipped with a plurality of circular holes that differ in the aperture on the said first core pipe (13), the second core pipe (14), the 3rd core pipe (15) and the perforated plate (16).
5. a kind of multi-cavity as claimed in claim 2 silencing apparatus of getting lost, it is characterized in that: said suction tude (4) is provided with a plurality of circular holes that differ in the aperture.
6. a kind of multi-cavity as claimed in claim 3 silencing apparatus of getting lost, it is characterized in that: said outlet pipe (5) is provided with a plurality of circular holes that differ in the aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103360700A CN102359407A (en) | 2011-10-29 | 2011-10-29 | Multi-cavity labyrinth silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103360700A CN102359407A (en) | 2011-10-29 | 2011-10-29 | Multi-cavity labyrinth silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102359407A true CN102359407A (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103360700A Pending CN102359407A (en) | 2011-10-29 | 2011-10-29 | Multi-cavity labyrinth silencer |
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| Country | Link |
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| CN (1) | CN102359407A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389667A (en) * | 2014-11-27 | 2015-03-04 | 贵州大学 | Car exhaust pipe device capable of reducing noise |
| CN104675478A (en) * | 2015-03-11 | 2015-06-03 | 河南柴油机重工有限责任公司 | Exhaust muffler for box type generating unit |
| CN105971688A (en) * | 2016-07-22 | 2016-09-28 | 合肥汇凌汽车零部件有限公司 | Diesel internal combustion engine silencer |
| CN113882932A (en) * | 2021-09-27 | 2022-01-04 | 隆鑫通用动力股份有限公司 | Silencer, engine and generating set |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2151258Y (en) * | 1993-02-12 | 1993-12-29 | 李春财 | Energy-saving silencer |
| WO2003102393A1 (en) * | 2002-05-31 | 2003-12-11 | Control Components, Inc. | Low-noise pressure reduction system |
| 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 |
| CN201714459U (en) * | 2010-05-28 | 2011-01-19 | 浙江大学 | Automobile exhaust silencer |
| CN201778861U (en) * | 2010-08-23 | 2011-03-30 | 杭州普菲科空分设备有限公司 | Flow around type silencer |
| CN201865723U (en) * | 2010-11-24 | 2011-06-15 | 郑州三维内燃机净化消声技术有限公司 | Automobile exhaust silencer |
-
2011
- 2011-10-29 CN CN2011103360700A patent/CN102359407A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2151258Y (en) * | 1993-02-12 | 1993-12-29 | 李春财 | Energy-saving silencer |
| WO2003102393A1 (en) * | 2002-05-31 | 2003-12-11 | Control Components, Inc. | Low-noise pressure reduction system |
| 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 |
| CN201714459U (en) * | 2010-05-28 | 2011-01-19 | 浙江大学 | Automobile exhaust silencer |
| CN201778861U (en) * | 2010-08-23 | 2011-03-30 | 杭州普菲科空分设备有限公司 | Flow around type silencer |
| CN201865723U (en) * | 2010-11-24 | 2011-06-15 | 郑州三维内燃机净化消声技术有限公司 | Automobile exhaust silencer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389667A (en) * | 2014-11-27 | 2015-03-04 | 贵州大学 | Car exhaust pipe device capable of reducing noise |
| CN104675478A (en) * | 2015-03-11 | 2015-06-03 | 河南柴油机重工有限责任公司 | Exhaust muffler for box type generating unit |
| CN105971688A (en) * | 2016-07-22 | 2016-09-28 | 合肥汇凌汽车零部件有限公司 | Diesel internal combustion engine silencer |
| CN113882932A (en) * | 2021-09-27 | 2022-01-04 | 隆鑫通用动力股份有限公司 | Silencer, engine and generating set |
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Application publication date: 20120222 |