CN209398478U - A kind of noise reduction packet hush pipe - Google Patents
A kind of noise reduction packet hush pipe Download PDFInfo
- Publication number
- CN209398478U CN209398478U CN201920139484.6U CN201920139484U CN209398478U CN 209398478 U CN209398478 U CN 209398478U CN 201920139484 U CN201920139484 U CN 201920139484U CN 209398478 U CN209398478 U CN 209398478U
- Authority
- CN
- China
- Prior art keywords
- outlet side
- supervisor
- noise reduction
- holding tank
- bending part
- 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.)
- Expired - Fee Related
Links
- 230000009467 reduction Effects 0.000 title claims abstract description 28
- 238000005452 bending Methods 0.000 claims abstract description 20
- 239000011358 absorbing material Substances 0.000 claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 5
- 230000003584 silencer Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Abstract
The utility model discloses a kind of noise reduction packet hush pipes, including supervisor, the supervisor is open at one end, the other end is connect by bending part with two branch pipes, supervisor's inner sidewall is tiltedly installed with acoustical panel, the acoustical panel is tilted to the branch pipe direction, the cross-sectional area sum of two branch pipes is greater than the cross-sectional area of the supervisor, the one end of two branch pipes far from the bending part is outlet side, the outlet side is arranged in noise reduction packet, close setting in the end face of the outlet side, venthole is evenly equipped on the outlet side side wall, outwardly convex has holding tank on branch pipe between the bending part and the outlet side, sound-absorbing material is installed in the holding tank, spiral groove is provided on the inner wall of the branch pipe between the holding tank and the outlet side, the rotation direction of the spiral groove is towards the outlet side.The utility model has the advantages that good muffling effect, air circulation are smooth, easy for installation.
Description
Technical field
The utility model relates to automobile silencing fields, and in particular to a kind of noise reduction packet hush pipe.
Background technique
Hush pipe refers to for while having the airflow line of noise transmission, can be with the sound absorption pipeline of lining and curved
Head utilizes the noise reductions device such as sectional area sudden change and the discontinuous pipeline of other acoustic impedances, and noise in pipeline is made to be decayed
Or reflect back, there are many silencer type, but study carefully its noise elimination mechanism, and it can be divided into six kinds of main types, i.e., resistive
Silencer, reactive muffler, impedance composite muffler, microperforated panel silencer, micropole diffusor and active silencer.
Vehicle vent gas discharging pipe road is connect with engine, and engine needs to burn to fuel oil when being worked, meeting
Continuous and huge noise is generated, successively needs to place noise reduction packet in the position of smoke exhaust pipe, carries out noise reduction, wherein hush pipe is to disappear
The most important component of sound packet, hush pipe can greatly weaken noise, and existing hush pipe can have erasure effect not
It is good, obstruction is generated to air-flow, influences horsepower output.
Utility model content
In view of the above shortcomings of the prior art, disappear the technical problem to be solved by the utility model is to how to provide one kind
The noise reduction packet hush pipe that audio fruit is good, air circulation is smooth, easy for installation.
In order to solve the above-mentioned technical problem, the utility model uses the following technical solution:
A kind of noise reduction packet hush pipe, including supervisor, the supervisor is open at one end, and the other end passes through bending part and two branch
Pipe connection, supervisor's inner sidewall are tiltedly installed with acoustical panel, and the acoustical panel is tilted to the branch pipe direction, two branch
The cross-sectional area sum of pipe is greater than the cross-sectional area of the supervisor, and the one end of two branch pipes far from the bending part is outlet
End, the outlet side are arranged in noise reduction packet, and setting is closed in the end face of the outlet side, are evenly equipped with out on the outlet side side wall
Stomata, outwardly convex has holding tank on the branch pipe between the bending part and the outlet side, and suction is equipped in the holding tank
Sound material is provided with spiral groove, the spiral groove on the inner wall of the branch pipe between the holding tank and the outlet side
Rotation direction towards the outlet side.
When in use, the acoustical panel on inner sidewall is successively passed through in supervisor's air inlet, enters branch pipe, the cross of branch pipe by bending part
Sectional area and cross-sectional area greater than supervisor are conducive to the decrease of noise so that the air-flow velocity into branch pipe slows down, on branch pipe
The sound-absorbing material surface of holding tank makes sound wave generate diffusing reflection, reduces intensity, after sound-absorbing material, it is recessed to encounter spiral
Slot, the rotation direction of spiral groove is towards outlet side, so that overall flow trend towards outlet side, not will cause air-flow reverse flow,
It avoids generating resistance, to influence horsepower output, spiral groove equally can reach noise reduction to raw because generating refraction and reflection
Effect, last air-flow enter noise reduction packet by venthole, are then discharged out car body.The utility model can reduce flowing velocity, more
Kind mode reflects sound wave, and air-flow will not be made to generate you and want to flow, and while ensureing erasure effect, reduces and exports to horsepower
Influence.
As optimization, the top and bottom of supervisor's inner sidewall are arranged in the acoustical panel, and the acoustical panel interval is set
It sets, the length of the acoustical panel is less than the half of the supervisor sidewall upper and lower end distance.
In this way, acoustical panel is arranged at intervals on side wall, there is mobile suction-operated to sound, while not influencing air-flow
Flowing, lengthens so that the pre- flowing of air-flow is formed, and adsorption effect becomes apparent from.
As optimization, corrugated plating, the shape of the corrugated plating and the bending are fixedly installed on the bending part inner wall
The shape in portion matches.
In this way, ripple plate surface can not only adsorb sound, but also sound can be reflected, when flow velocity generates variation
Time carries out stable Noise Reduction.
As optimization, the sound-absorbing material is high temperature acoustical cotton, the high temperature acoustical cotton in the holding tank
Outer surface is in the same plane with the branch pipe wall.
In this way, high temperature acoustical cotton has the performance of high temperature resistance, so that its attracting performance in holding tank is unaffected, do
To continuing working, reliable and stable, high temperature acoustical cotton does not stretch out holding tank, avoids generating obstruction to air-flow, it is calm to be also prevented from itself
It receives and falls off in slot.
As optimization, two branch pipes are attached by connecting rod.
In this way, having certain connection relationship between two branch pipes, avoids air-flow and side wall from vibrating in collision excessive, lead
Cause damage.
As optimization, the material of the supervisor and the branch pipe is 439 stainless iron of SUS.
In this way, this kind of material has preferable high temperature resistance, quality is relatively light, is useful in do and works under hot environment
Detailed description of the invention
Fig. 1 is the structural schematic diagram of noise reduction packet hush pipe described in specific embodiment of the present invention.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
When it is implemented, as shown in Figure 1, a kind of noise reduction packet hush pipe, including supervisor 1, the supervisor 1 is open at one end,
The other end is connect by bending part 11 with two branch pipes 12, and 1 inner sidewall of the supervisor is tiltedly installed with acoustical panel 13, the noise reduction
Plate 13 is tilted to 12 direction of branch pipe, and the cross-sectional area sum of two branch pipes 12 is greater than the cross-sectional area of the supervisor 1,
The one end of two branch pipes 12 far from the bending part 11 is outlet side 14, and the outlet side 14 is arranged in noise reduction packet, institute
The end face closing setting for stating outlet side 14, is evenly equipped with venthole 15 on 14 side wall of outlet side, the bending part 11 with it is described
Outwardly convex has holding tank 16 on branch pipe 12 between outlet side 14, and sound-absorbing material 17 is equipped in the holding tank 16, described
Spiral groove 18 is provided between holding tank 16 and the outlet side 14 on the inner wall of the branch pipe 12, the spiral groove 18
Rotation direction is towards the outlet side 14.
When in use, the acoustical panel on inner sidewall is successively passed through in supervisor's air inlet, enters branch pipe, the cross of branch pipe by bending part
Sectional area and cross-sectional area greater than supervisor are conducive to the decrease of noise so that the air-flow velocity into branch pipe slows down, on branch pipe
The sound-absorbing material surface of holding tank makes sound wave generate diffusing reflection, reduces intensity, after sound-absorbing material, it is recessed to encounter spiral
Slot, the rotation direction of spiral groove is towards outlet side, so that overall flow trend towards outlet side, not will cause air-flow reverse flow,
It avoids generating resistance, to influence horsepower output, spiral groove equally can reach noise reduction to raw because generating refraction and reflection
Effect, last air-flow enter noise reduction packet by venthole, are then discharged out car body.The utility model can reduce flowing velocity, more
Kind mode reflects sound wave, and air-flow will not be made to generate you and want to flow, and while ensureing erasure effect, reduces and exports to horsepower
Influence.
In the present embodiment, the top and bottom of 1 inner sidewall of the supervisor, the acoustical panel 13 is arranged in the acoustical panel 13
Interval setting, the length of the acoustical panel 13 are less than the half of supervisor 1 sidewall upper and lower end distance.
In this way, acoustical panel is arranged at intervals on side wall, there is mobile suction-operated to sound, while not influencing air-flow
Flowing, lengthens so that the pre- flowing of air-flow is formed, and adsorption effect becomes apparent from.
In the present embodiment, be fixedly installed with corrugated plating 19 on 11 inner wall of bending part, the shape of the corrugated plating 19 with
The shape of the bending part 11 matches.
In this way, ripple plate surface can not only adsorb sound, but also sound can be reflected, when flow velocity generates variation
Time carries out stable Noise Reduction.
In the present embodiment, the sound-absorbing material 17 is high temperature acoustical cotton, and the high temperature in the holding tank 16 is inhaled
The outer surface of sound cotton is in the same plane with 12 inner wall of branch pipe.
In this way, high temperature acoustical cotton has the performance of high temperature resistance, so that its attracting performance in holding tank is unaffected, do
To continuing working, reliable and stable, high temperature acoustical cotton does not stretch out holding tank, avoids generating obstruction to air-flow, it is calm to be also prevented from itself
It receives and falls off in slot.
In the present embodiment, two branch pipes 12 are attached by connecting rod 2.
In this way, having certain connection relationship between two branch pipes, avoids air-flow and side wall from vibrating in collision excessive, lead
Cause damage.
In the present embodiment, the material of the supervisor and the branch pipe is 439 stainless iron of SUS.
In this way, this kind of material has preferable high temperature resistance, quality is relatively light, is useful in and does work under hot environment
Make.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that；
It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, the utility model embodiment that it does not separate the essence of the corresponding technical solution
The range of technical solution should all cover in the claim of the utility model and the range of specification.
Claims (6)
1. a kind of noise reduction packet hush pipe, which is characterized in that including supervisor, the supervisor is open at one end, and the other end passes through bending
Portion is connect with two branch pipes, and supervisor's inner sidewall is tiltedly installed with acoustical panel, and the acoustical panel is tilted to the branch pipe direction,
The cross-sectional area sum of two branch pipes is greater than the cross-sectional area of the supervisor, and two branch pipes are far from the bending part
One end is outlet side, and the outlet side is arranged in noise reduction packet, and setting, the outlet side side wall are closed in the end face of the outlet side
On be evenly equipped with venthole, outwardly convex has holding tank, the holding tank on the branch pipe between the bending part and the outlet side
Sound-absorbing material is inside installed, is provided with spiral groove on the inner wall of the branch pipe between the holding tank and the outlet side, institute
The rotation direction of spiral groove is stated towards the outlet side.
2. noise reduction packet hush pipe according to claim 1, which is characterized in that the acoustical panel is arranged in the supervisor
The top and bottom of side wall, the acoustical panel interval setting, the length of the acoustical panel are less than supervisor's sidewall upper under
Hold the half of distance.
3. noise reduction packet hush pipe according to claim 1, which is characterized in that be fixedly installed on the bending part inner wall
Corrugated plating, the shape of the corrugated plating are matched with the shape of the bending part.
4. noise reduction packet hush pipe according to claim 1, which is characterized in that the sound-absorbing material is high temperature acoustical cotton,
The outer surface of the high temperature acoustical cotton in the holding tank is in the same plane with the branch pipe wall.
5. noise reduction packet hush pipe according to claim 1, which is characterized in that two branch pipes are connected by connecting rod
It connects.
6. noise reduction packet hush pipe according to claim 1, which is characterized in that the material of the supervisor and the branch pipe is equal
For 439 stainless iron of SUS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920139484.6U CN209398478U (en) | 2019-01-25 | 2019-01-25 | A kind of noise reduction packet hush pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920139484.6U CN209398478U (en) | 2019-01-25 | 2019-01-25 | A kind of noise reduction packet hush pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209398478U true CN209398478U (en) | 2019-09-17 |
Family
ID=67899034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920139484.6U Expired - Fee Related CN209398478U (en) | 2019-01-25 | 2019-01-25 | A kind of noise reduction packet hush pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209398478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607601A (en) * | 2022-03-23 | 2022-06-10 | 南通恒和环保科技有限公司 | Water-cooled roots fan |
-
2019
- 2019-01-25 CN CN201920139484.6U patent/CN209398478U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607601A (en) * | 2022-03-23 | 2022-06-10 | 南通恒和环保科技有限公司 | Water-cooled roots fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 |