CN110410610A - A kind of steam pipe muffler - Google Patents
A kind of steam pipe muffler Download PDFInfo
- Publication number
- CN110410610A CN110410610A CN201910558893.4A CN201910558893A CN110410610A CN 110410610 A CN110410610 A CN 110410610A CN 201910558893 A CN201910558893 A CN 201910558893A CN 110410610 A CN110410610 A CN 110410610A
- Authority
- CN
- China
- Prior art keywords
- partition
- silencing means
- distributing damper
- steam pipe
- chamber
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of steam pipe muffler, including air inlet pipe, silencing means and exhaust pipe, silencing means includes distributary division and noise elimination part；Distributary division, which is equipped with, shunts ring body and partition, and it is corresponding with air inlet tube hub to shunt head；The shuttle shape protrusion two sides are respectively equipped with the first distributing damper and the second distributing damper being fixedly connected with silencing means inner wall, first distributing damper and the second distributing damper top are fixed with first partition, lower part is fixed with second partition, perpendicular to first partition and second partition and it is located at shunting body tail section equipped with third partition and the 4th partition, third partition is fixedly connected with silencing means inner wall top and bottom respectively with the 4th partition；Noise elimination part is at least three sound gobo being arranged perpendicular to third partition and the 4th partition, and sound gobo surface is waveform, and the recess portion of sound gobo is corresponding with the portion of liquidating.The present invention provides a kind of steam pipe muffler that exhaust noise is effectively reduced, avoids generating regeneration noise.
Description
Technical field
The present invention relates to silencing means technical fields, and in particular to a kind of steam pipe muffler.
Background technique
In line steam outlet can generate noise when carrying out pressure release and discharge condensed water to pipeline, influence around jet chimney
The rest of resident.The muffler of mainstream is mostly that resistive muffler or resistant noise-reducing device, resistive muffler are main on the market at present
It is made of antipriming pipe, acoutic fibre board, is to form the various noise eliminations such as expansion chambers, resonant chamber by components such as pipeline, partitions in inside
When unit, sound wave propagate when occur reflection and interference, reduce acoustic energy reach noise elimination purpose, to medium-high frequency good muffling effect,
It is poor to low frequency erasure effect；Resistant noise-reducing device is composed of the pipe and room of abrupt interface, is passed through in exhaust gas inside
Pipeline filling sucting sound material reaches noise elimination purpose to absorb acoustic energy, suitable for eliminating, low-frequency noise, makes an uproar for high frequency
Sound noise elimination effect is poor.
In addition, gas can cause the mutation of air velocity when passing through the structures such as silencer inner perforated pipe, elbow, thus
Generate certain turbulent flow.Turbulent flow not only will form exhaust resistance, but also generate turbulence noise, and turbulence noise is mainly with high frequency
It is main；In addition air-flow also motivates silencer internal structure to generate vibration, especially causes when air-flow evokes silencer spectrogram parameter
When resonance, silencer internal component can also vibrate and radiated noise, this partial noise is structural noise, based on low frequency.This
Two parts noise is referred to as the regenerated noise of silencer.Regenerated noise has a major impact Muffler Performance, can make to disappear when serious
The failure of sound device or even silencer can become noise amplifier.It has been investigated that gas flow rate is the weight for influencing air-flow regeneration noise
Want factor.
Summary of the invention
It is an object of the present invention to overcome defect existing in the prior art, one kind is provided, exhaust noise is effectively reduced, keeps away
Exempt to generate the steam pipe muffler for regenerating noise.
To achieve the above object, the technical scheme is to design a kind of steam pipe muffler, including air inlet pipe, with into
The silencing means of tracheae connection and the exhaust pipe being connected to silencing means, the silencing means includes distributary division and noise elimination part；
The distributary division, which is equipped with, shunts ring body and partition, and the shunting ring body includes integrally formed shunting head and shunting ontology, institute
It states and shunts head center equipped with shuttle shape protrusion, the shuttle shape convex center is corresponding with air inlet tube hub；The shuttle shape protrusion two sides point
The first distributing damper and the second distributing damper that She You not be fixedly connected with silencing means inner wall, the first distributing damper and second point
Stream baffle top is fixed with first partition, and the first distributing damper and the second distributing damper lower part are fixed with second partition, hangs down
Directly third partition and the 4th partition, third partition and the 4th are equipped in first partition and second partition and positioned at body tail section is shunted
Partition is fixedly connected with silencing means inner wall top and bottom respectively；The silencing means inner wall and first partition and third partition
First is formed to liquidate chamber；Silencing means inner wall and second partition and the 4th partition form second and liquidate chamber；First liquidates chamber and
Two, which liquidate, forms the portion that liquidates among chamber；It is hollow structure inside the flow splitter body；
The head for shunting ring body is airflow design, utmostly reduces windage, air-flow is divided into two parts.
The noise elimination part is at least three sound gobo being arranged perpendicular to third partition and the 4th partition, the noise reduction every
Plate surface is waveform, and the recess portion of sound gobo is corresponding with the portion of liquidating；The interconnecting piece of the noise elimination part and exhaust pipe, which is equipped with, to disappear
Sound net；Expansion cavity is formed between the third partition (or the 4th partition) and sound gobo.
Filter layer, sound absorbing layer and supporting layer from the inside to the outside is equipped on the outside of the silencing means.
The distributing damper, partition and shunting ring body are quieter material, ethylene propylene diene rubber.
By flanged joint, exhaust outlet is changed to by the installation for completing muffler by line for the muffler and in line exhaust pipe
Discharge downwards, can also reduce the propagation of noise.
Ring body is shunted as a preferred technical solution, and is equipped with noise reduction layer, and the noise reduction layer is followed successively by from outside to inside with sieve
The plastic support network in shape hole, supporting network inside are equipped with silencing cotton.
Head is shunted as a preferred technical solution, is equipped with screw thread.The work for the air-flow guiding that the Design of Screw Thread on surface plays
With.
As a preferred technical solution, first liquidate chamber and second liquidate the distance between chamber less than or equal to first shunt
The height of baffle or the second distributing damper.
As a preferred technical solution, sound gobo respectively with the upside of silencing means inner wall or downside cross-distribution.
The filter layer on the outside of the silencing means is steel plate, sound absorbing layer with sieve shape hole as a preferred technical solution,
It is aluminium alloy outer layer for acoustical cotton and supporting layer.
Circular arc mistake is distinguished between the silencing means inner wall and third partition and the 4th partition as a preferred technical solution,
Cross connection.
The silencing means both ends are cone as a preferred technical solution, and centre is the bottom surface of cylindrical cone
It is adapted with cylindrical bottom surface.
Honeycomb aluminium foil is equipped with inside the exhaust pipe as a preferred technical solution, to fill.
The advantages and beneficial effects of the present invention are: gas by air inlet pipe, shunt ring body, liquidate chamber and noise elimination part forms,
Air-flow respectively enters two chambers that liquidate after air inlet pipe inflow, liquidates in the portion of liquidating, so that air-flow velocity reduces, gas stream
The reduction of speed helps to reduce impact of the air-flow to wall surface, reduces the noise of vibration radiation, while helping to reduce the speed of vortex
Degree, and then exhaust back pressure is reduced, it avoids generating regeneration noise, there is good sound-absorbing effect.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is main view of the invention；
In figure: 1, air inlet pipe；2, silencing means；3, exhaust pipe；41, head is shunted；42, ontology is shunted；51, it first shunts
Baffle；52, the second distributing damper；61, first partition；62, second partition；63, third partition；64, the 4th partition；71, first
Liquidate chamber；72, it second liquidates chamber；8, sound gobo；9, acoustic damping mesh.
Specific embodiment
With reference to the accompanying drawings and examples, further description of the specific embodiments of the present invention.Following embodiment is only
For clearly illustrating technical solution of the present invention, and not intended to limit the protection scope of the present invention.
A kind of steam pipe muffler connects including air inlet pipe 1, the silencing means being connected to air inlet pipe 2 and with silencing means
Logical exhaust pipe 3, the silencing means include distributary division and noise elimination part；The distributary division, which is equipped with, shunts ring body and partition, described
It shunts ring body to include integrally formed shunting head 41 and shunt ontology 42, the shunting head center is equipped with shuttle shape protrusion, should
Shuttle shape convex center is corresponding with air inlet tube hub；The shuttle shape protrusion two sides are respectively equipped with to be fixedly connected with silencing means inner wall
First distributing damper 51 and the second distributing damper 52, the first distributing damper and the second distributing damper top are fixed with first partition
61, the first distributing damper and the second distributing damper lower part are fixed with second partition 62, perpendicular to first partition and second partition
And be located at and shunt body tail section and be equipped with third partition 63 and the 4th partition 64, third partition and the 4th partition respectively with silencing means
Inner wall top and bottom are fixedly connected；The silencing means inner wall and first partition and third partition form first and liquidate chamber 71；
Silencing means inner wall and second partition and the 4th partition form second and liquidate chamber 72；First chamber and second that liquidates liquidates shape among chamber
At the portion of liquidating；It is hollow structure inside the flow splitter body；
The noise elimination part is at least three sound gobo 8 being arranged perpendicular to third partition and the 4th partition, the noise reduction every
Plate surface is waveform, and the recess portion of sound gobo is corresponding with the portion of liquidating；The interconnecting piece of the noise elimination part and exhaust pipe, which is equipped with, to disappear
Sound net 9；
Filter layer, sound absorbing layer and supporting layer from the inside to the outside is equipped on the outside of the silencing means.
It shunts ring body and is equipped with noise reduction layer, the noise reduction layer is followed successively by the plastic support network with sieve shape hole, branch from outside to inside
Support net is internal to be equipped with silencing cotton.
It shunts head and is equipped with screw thread.
First chamber and second that liquidates liquidates the distance between chamber less than or equal to the first distributing damper or the second distributing damper
Height.
Sound gobo respectively with the upside of silencing means inner wall or downside cross-distribution.
Filter layer on the outside of the silencing means is that steel plate, the sound absorbing layer with sieve shape hole are acoustical cotton and supporting layer is aluminium
Alloy outer.
Arc transition connection is distinguished between the silencing means inner wall and third partition and the 4th partition.The present invention connects everywhere
Connecing is fillet connection, connection meeting at right angle so that air velocity rapidly become larger in sharp corner speed it is not only easy to material itself
It generates corrosion and destroys, since the increase of speed can also generate regeneration noise.
The silencing means both ends are cone, and centre is mutually fitted for the bottom surface of cylindrical cone with cylindrical bottom surface
Match.
Honeycomb aluminium foil is equipped with inside the exhaust pipe to fill.Honeycomb aluminium foil reduces gas velocity by increasing air flow path
Degree reduces pneumatic noise.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of steam pipe muffler, it is connected to including air inlet pipe, the silencing means being connected to air inlet pipe and with silencing means
Exhaust pipe, which is characterized in that the silencing means includes distributary division and noise elimination part；The distributary division be equipped with shunt ring body and every
Plate, the shunting ring body include integrally formed shunting head and shunt ontology, and the shunting head center is equipped with shuttle shape protrusion,
The shuttle shape convex center is corresponding with air inlet tube hub；The shuttle shape protrusion two sides are respectively equipped with to be fixedly connected with silencing means inner wall
The first distributing damper and the second distributing damper, the first distributing damper and the second distributing damper top is fixed with first partition,
First distributing damper and the second distributing damper lower part are fixed with second partition, perpendicular to first partition and second partition and are located at
Shunt body tail section and be equipped with third partition and the 4th partition, third partition and the 4th partition respectively with silencing means inner wall upper end and
Lower end is fixedly connected；The silencing means inner wall and first partition and third partition form first and liquidate chamber；Silencing means inner wall
Second is formed with second partition and the 4th partition to liquidate chamber；First chamber and second that liquidates liquidates and forms the portion that liquidates among chamber；It is described
It is hollow structure inside flow splitter body；
The noise elimination part is at least three sound gobo being arranged perpendicular to third partition and the 4th partition, the sound gobo table
Face is waveform, and the recess portion of sound gobo is corresponding with the portion of liquidating；The interconnecting piece of the noise elimination part and exhaust pipe is equipped with acoustic damping mesh；
Filter layer, sound absorbing layer and supporting layer from the inside to the outside is equipped on the outside of the silencing means.
2. a kind of steam pipe muffler according to claim 1, which is characterized in that it shunts ring body and is equipped with noise reduction layer, it is described
Noise reduction layer is followed successively by the plastic support network with sieve shape hole from outside to inside, is equipped with silencing cotton inside supporting network.
3. a kind of steam pipe muffler according to claim 2, which is characterized in that shunt head and be equipped with screw thread.
4. a kind of steam pipe muffler according to claim 3, which is characterized in that first liquidate chamber and second liquidate chamber it
Between distance be less than or equal to the height of the first distributing damper or the second distributing damper.
5. a kind of steam pipe muffler according to claim 4, which is characterized in that sound gobo is respectively and in silencing means
The upside of wall or downside cross-distribution.
6. a kind of steam pipe muffler according to claim 5, which is characterized in that the filter layer on the outside of the silencing means
For steel plate, sound absorbing layer with sieve shape hole be acoustical cotton and supporting layer is aluminium alloy outer layer.
7. a kind of steam pipe muffler according to claim 6, which is characterized in that the silencing means inner wall and third every
Arc transition connection is distinguished between plate and the 4th partition.
8. a kind of steam pipe muffler according to claim 7, which is characterized in that the silencing means both ends are circular cone
Shape, centre are adapted for the bottom surface of cylindrical cone with cylindrical bottom surface.
9. a kind of steam pipe muffler according to claim 8, which is characterized in that be equipped with honeycomb inside the exhaust pipe
Aluminium foil filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910558893.4A CN110410610A (en) | 2019-06-26 | 2019-06-26 | A kind of steam pipe muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910558893.4A CN110410610A (en) | 2019-06-26 | 2019-06-26 | A kind of steam pipe muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110410610A true CN110410610A (en) | 2019-11-05 |
Family
ID=68359859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910558893.4A Pending CN110410610A (en) | 2019-06-26 | 2019-06-26 | A kind of steam pipe muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110410610A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280205A (en) * | 2021-05-24 | 2021-08-20 | 南京罗欧环保科技有限公司 | Ventilation pipe embeds damping ventilation silencer |
| CN113334352A (en) * | 2021-04-20 | 2021-09-03 | 王荣伟 | Environment-friendly machining equipment and using method thereof |
| CN114199575A (en) * | 2020-09-18 | 2022-03-18 | 中国航发商用航空发动机有限责任公司 | Noise elimination assembly, foreign matter impact test device and test method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB303997A (en) * | 1927-12-14 | 1929-01-17 | Rover Co Ltd | Improvements in exhaust silencers for internal combustion engines |
| US4574914A (en) * | 1983-11-03 | 1986-03-11 | Flowmaster, Inc. | Compact, sound-attenuating muffler for high-performance, internal combustion engine |
| US5123502A (en) * | 1990-08-30 | 1992-06-23 | Flowmaster, Inc. | Muffler assembly with perforated partition for ignition of accumulated fuel and method |
| CN102777234A (en) * | 2012-07-30 | 2012-11-14 | 苏州市伦琴工业设计有限公司 | Hedging type exhaust 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 |
-
2019
- 2019-06-26 CN CN201910558893.4A patent/CN110410610A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB303997A (en) * | 1927-12-14 | 1929-01-17 | Rover Co Ltd | Improvements in exhaust silencers for internal combustion engines |
| US4574914A (en) * | 1983-11-03 | 1986-03-11 | Flowmaster, Inc. | Compact, sound-attenuating muffler for high-performance, internal combustion engine |
| US4574914B1 (en) * | 1983-11-03 | 1991-12-03 | Flowmaster Inc | |
| US5123502A (en) * | 1990-08-30 | 1992-06-23 | Flowmaster, Inc. | Muffler assembly with perforated partition for ignition of accumulated fuel and method |
| CN102777234A (en) * | 2012-07-30 | 2012-11-14 | 苏州市伦琴工业设计有限公司 | Hedging type exhaust 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199575A (en) * | 2020-09-18 | 2022-03-18 | 中国航发商用航空发动机有限责任公司 | Noise elimination assembly, foreign matter impact test device and test method |
| CN113334352A (en) * | 2021-04-20 | 2021-09-03 | 王荣伟 | Environment-friendly machining equipment and using method thereof |
| CN113280205A (en) * | 2021-05-24 | 2021-08-20 | 南京罗欧环保科技有限公司 | Ventilation pipe embeds damping ventilation silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191105 |