CN114165312A - Full water-cooling impedance composite exhaust silencer - Google Patents
Full water-cooling impedance composite exhaust silencer Download PDFInfo
- Publication number
- CN114165312A CN114165312A CN202111336916.0A CN202111336916A CN114165312A CN 114165312 A CN114165312 A CN 114165312A CN 202111336916 A CN202111336916 A CN 202111336916A CN 114165312 A CN114165312 A CN 114165312A
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- CN
- China
- Prior art keywords
- muffler
- cooling liquid
- sound
- exhaust
- cooling
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 title claims abstract description 16
- 230000003584 silencer Effects 0.000 title claims description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000000110 cooling liquid Substances 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 9
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000002627 tracheal intubation Methods 0.000 abstract 4
- 230000030279 gene silencing Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001631457 Cannula Species 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
- F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
本发明公开了一种全水冷阻抗复合型排气消声器，包括进气组件、复合隔音层、内插管组合、金属外壳、螺旋流道、金属内壁、排气组件、溢流阀接口、冷却液进口、冷却液出口，内插管组合安装在消声器内部，内插管组合由两片截面形状不同的抗性挡板及根内插管组成，第一抗性挡板支撑在内插管的一端，第二抗性单板支撑在内插管的中部，将消声器内腔分为三个消声腔体螺旋流道增大消声器散热面积，冷却液绕消声器螺旋流动，流阻小，冷却效率高；消声器表面温度大幅降低，红外特性得到改善；降低消声器噪声辐射；阻抗结合扩大消声器消声频域，实现高频、低频同步消声，适用于内燃机排气噪声控制领域。
The invention discloses a full water-cooled impedance composite exhaust muffler, comprising an air intake component, a composite sound insulation layer, an inner tube assembly, a metal shell, a spiral flow channel, a metal inner wall, an exhaust component, an overflow valve interface, and a cooling liquid. The inlet, the cooling liquid outlet, and the inner intubation tube assembly are installed inside the muffler. The inner intubation tube assembly is composed of two resistance baffles with different cross-sectional shapes and the root intubation tube. The first resistance baffle supports one end of the inner intubation tube. , the second resistance veneer is supported in the middle of the inner tube, and the inner cavity of the muffler is divided into three muffler cavity spiral flow channels to increase the heat dissipation area of the muffler, and the cooling liquid flows spirally around the muffler, with small flow resistance and high cooling efficiency; The surface temperature of the muffler is greatly reduced, and the infrared characteristics are improved; the noise radiation of the muffler is reduced; the impedance combination expands the muffler muffler frequency domain, and realizes high-frequency and low-frequency simultaneous muffling, which is suitable for the field of exhaust noise control of internal combustion engines.
Description
Technical Field
The invention relates to the field of exhaust noise control of internal combustion engines, in particular to a full water-cooling impedance composite exhaust muffler.
Background
The exhaust silencer is a silencing device which allows high-temperature and high-speed airflow of tail gas of an internal combustion engine to pass through and reduces the noise sound pressure level of the tail gas, and is generally arranged on an exhaust port or in a pipeline through which the airflow passes, and the exhaust silencer can effectively reduce the exhaust noise of the internal combustion engine. The diesel engine has high exhaust sound pressure level, difficult noise control, high exhaust energy, high surface temperature of an exhaust pipeline and a silencer and safety risk of scalding operators. The traditional hot coating technology cannot reduce the surface temperature of the silencer fundamentally, cannot change the infrared characteristic of the exhaust silencer, needs to be explored in the aspect of silencer water cooling technology urgently, develops the high-efficiency water-cooling silencer, and is applied to high-end equipment.
Disclosure of Invention
The invention solves the technical problem of providing the full water-cooling impedance composite exhaust silencer with high cooling efficiency and wide silencing frequency domain.
The technical scheme adopted by the invention is that the full water-cooling impedance composite exhaust muffler comprises an air inlet assembly, a composite sound insulation layer, an inner insert pipe assembly, a metal shell, a spiral flow channel, a metal inner wall, an exhaust assembly, an overflow valve interface, a cooling liquid inlet and a cooling liquid outlet, wherein the inner insert pipe assembly is arranged in the muffler and consists of two resistant baffles with different cross-sectional shapes and an inner insert pipe, the first resistant baffle is supported at one end of the inner insert pipe, the second resistant single plate is supported in the middle of the inner insert pipe, and the inner cavity of the muffler is divided into three noise elimination cavities; the composite sound insulation layer is integrated with at least three sound-deadening and sound-insulating materials; a spiral flow channel is arranged between the inner wall and the outer wall of the silencer and is communicated with a cooling liquid inlet and a cooling liquid outlet.
The sound-deadening and sound-insulating material for forming the composite sound-insulating layer comprises high-density glass fiber felt, a metal plate, aluminum silicate felt and a metal perforated plate.
6 cannulas were used.
The invention has the beneficial effects that: the spiral flow channel increases the heat dissipation area of the silencer, and the cooling liquid spirally flows around the silencer, so that the flow resistance is small, and the cooling efficiency is high; the surface temperature of the silencer is greatly reduced, and the infrared characteristic is improved; noise radiation of the silencer is reduced; impedance combination enlarges the noise elimination frequency domain of the silencer, and high-frequency and low-frequency synchronous noise elimination is realized.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is an isometric side view of the inner cannula of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a right side view of the present invention;
FIG. 5 is a right side cross-sectional view of the present invention;
FIG. 6 is a left side view of the present invention;
fig. 7 is a left side cross-sectional view of the present invention.
Labeled as: 1-an air inlet assembly, 11-an air inlet flange, 12-a metal corrugated pipe, 13-a perforated pipe, 2-a composite sound insulation layer, 21-a high-density glass fiber felt, 22-a metal plate, 23-an aluminum silicate felt, 24-a perforated plate, 3-an inner insert pipe combination, 31-a first resistant baffle, 32-an inner insert pipe, 33-a second resistant baffle, 4-a metal shell, 5-a spiral flow channel, 6-a metal inner wall, 7-an exhaust assembly, 71-a semi-perforated pipe, 72-an exhaust flange, 8-an overflow valve interface, 9-a cooling liquid outlet and 10-a cooling liquid inlet.
Detailed Description
The invention will be further explained with reference to the drawings.
The invention relates to a full water-cooling impedance composite exhaust muffler, which comprises an air inlet assembly 1, a composite sound insulation layer 2, an inner inserting pipe assembly 3, a metal shell 4, a spiral flow channel 5, a metal inner wall 6, an exhaust assembly 7, an overflow valve interface 8, a cooling liquid inlet 9, a cooling liquid outlet 10 and the like. An inner insert pipe combination 3 is arranged in the silencer, and the inner insert pipe combination 3 consists of two resistant baffles with different cross-sectional shapes and 6 inner insert pipes 32. The first resistant baffle 31 is supported at one end of the inner insertion tube 32, the second resistant single plate 33 is supported at the middle of the inner insertion tube 32, the inner cavity of the silencer is divided into three silencing cavities, and the combination of the three silencing cavities causes impedance combination, so that a silencing frequency domain is enlarged, high-frequency and low-frequency synchronous silencing is realized, the integral size is smaller, and the effect is better.
The composite soundproof layer 2 integrates a plurality of soundproof materials, such as a plurality of soundproof materials of a high-density glass fiber mat 21, a metal plate 22, an aluminum silicate mat 23, and a metal perforated plate 24, and can effectively perform sound absorption and sound insulation.
The spiral flow channel 5 is arranged between the inner wall and the outer wall of the silencer, the flow resistance of the spiral flow channel is small, the radiating area of the silencer can be increased, full water cooling is achieved, cooling efficiency is high, and the infrared characteristic of the silencer can be greatly improved. And the spiral flow channel is positioned between the inner wall and the outer wall of the silencer, so that the space is reasonably utilized, the integral volume of the silencer is not increased, the surface temperature of the silencer is effectively controlled, and the infrared characteristic of the silencer is improved.
The spiral flow passage 5 and the inner inserting pipe combination 3 with a unique structure jointly improve the cooling efficiency of the silencer and ensure the silencing effect on the premise of small volume.
Compared with the prior art, the invention has the following effects:
1, the spiral flow channel 5 increases the radiating area of the silencer, and the cooling liquid flows spirally around the silencer, so that the flow resistance is small, most of heat energy generated by the silencer is taken away, and the cooling efficiency is high.
2, the surface temperature of the silencer is greatly reduced, and the infrared characteristic is improved.
And 3, the sound insulation of the metal plate, the sound absorption of the sound-absorbing material and the standing wave sound absorption of the perforated plate are combined, so that the noise radiation of the silencer is reduced.
And 4, the impedance is combined with the expansion of the muffling frequency domain of the muffler, so that high-frequency and low-frequency synchronous muffling is realized.
Claims (3)
1. The full-water-cooling impedance composite exhaust muffler comprises an air inlet assembly (1), a composite sound insulation layer (2), an inner insert pipe assembly (3), a metal shell (4), a spiral flow channel (5), a metal inner wall (6), an exhaust assembly (7), an overflow valve interface (8), a cooling liquid inlet (9) and a cooling liquid outlet (10), wherein the inner insert pipe assembly (3) is installed inside the muffler, the inner insert pipe assembly (3) consists of two resistant baffles with different cross-sectional shapes and (6) inner insert pipes (32), a first resistant baffle (31) is supported at one end of each inner insert pipe (32), a second resistant single plate (33) is supported in the middle of each inner insert pipe (32), and an inner cavity of the muffler is divided into three muffling cavities; the composite sound insulation layer (2) is integrated with at least three sound-deadening and sound-insulating materials; a spiral flow channel (5) is arranged between the inner wall and the outer wall of the silencer, and the spiral flow channel (5) is communicated with a cooling liquid inlet (9) and a cooling liquid outlet (10).
2. The fully water-cooled impedance hybrid exhaust muffler according to claim 1, wherein: the sound-deadening and sound-insulating material for forming the composite sound-insulating layer (2) comprises high-density glass fiber felt, a metal plate, aluminum silicate felt and a metal perforated plate.
3. The fully water-cooled impedance hybrid exhaust muffler according to claim 1, wherein: the number of the inner inserting tubes (21) is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111336916.0A CN114165312A (en) | 2021-11-12 | 2021-11-12 | Full water-cooling impedance composite exhaust silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111336916.0A CN114165312A (en) | 2021-11-12 | 2021-11-12 | Full water-cooling impedance composite exhaust silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114165312A true CN114165312A (en) | 2022-03-11 |
Family
ID=80479063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111336916.0A Pending CN114165312A (en) | 2021-11-12 | 2021-11-12 | Full water-cooling impedance composite exhaust silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114165312A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201747435U (en) * | 2010-07-19 | 2011-02-16 | 中国人民解放军重庆通信学院 | Muffler of resistance compound type water cooling type diesel engine generator set |
| CN201891468U (en) * | 2010-11-17 | 2011-07-06 | 郑州精益达汽车零部件有限公司 | Automobile impedance composite muffler with inner heat insulation |
| CN204783177U (en) * | 2015-06-26 | 2015-11-18 | 上海科泰电源股份有限公司 | Diesel generating set silencer of discharging fume |
| CN211330128U (en) * | 2019-12-26 | 2020-08-25 | 杭州合创超声波科技有限公司 | Water-cooling explosion-proof ultrasonic transducer |
| CN111594297A (en) * | 2020-05-15 | 2020-08-28 | 西安科美动力科技有限公司 | Engine silencing device |
-
2021
- 2021-11-12 CN CN202111336916.0A patent/CN114165312A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201747435U (en) * | 2010-07-19 | 2011-02-16 | 中国人民解放军重庆通信学院 | Muffler of resistance compound type water cooling type diesel engine generator set |
| CN201891468U (en) * | 2010-11-17 | 2011-07-06 | 郑州精益达汽车零部件有限公司 | Automobile impedance composite muffler with inner heat insulation |
| CN204783177U (en) * | 2015-06-26 | 2015-11-18 | 上海科泰电源股份有限公司 | Diesel generating set silencer of discharging fume |
| CN211330128U (en) * | 2019-12-26 | 2020-08-25 | 杭州合创超声波科技有限公司 | Water-cooling explosion-proof ultrasonic transducer |
| CN111594297A (en) * | 2020-05-15 | 2020-08-28 | 西安科美动力科技有限公司 | Engine silencing device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220311 |
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| RJ01 | Rejection of invention patent application after publication |