CN208396777U - Diesel generating set low-frequency noise silencer - Google Patents
Diesel generating set low-frequency noise silencer Download PDFInfo
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- CN208396777U CN208396777U CN201820868660.5U CN201820868660U CN208396777U CN 208396777 U CN208396777 U CN 208396777U CN 201820868660 U CN201820868660 U CN 201820868660U CN 208396777 U CN208396777 U CN 208396777U
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- hush tube
- air inlet
- partition
- silencer
- silencer shell
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Abstract
The utility model relates to generating set noise elimination techniques, more particularly to a kind of significant diesel generating set low-frequency noise silencer of erasure effect, including silencer shell, air inlet pipe and exhaust elbow, the both ends of silencer shell are equipped with air inlet end-plate and exhaust end-plate, air inlet pipe runs through air inlet end-plate, exhaust elbow be fixed on exhaust end-plate on and be connected in silencer shell, first partition and second partition are equipped in silencer shell to be divided into the first chamber in silencer shell, second chamber and third chamber, air inlet pipe extends into the second chamber, first intracavitary has the first hush tube, first hush tube is sleeved on air inlet pipe circumference, second partition is equipped with the second hush tube and third hush tube, third hush tube is intracavitary and be connected to third chamber second, second hush tube runs through second partition, first hush tube, it is all provided on second hush tube and third hush tube There is sound attenuation hole, also there is sound attenuation hole in the air inlet pipe in silencer shell, silencer shell outside weld is connected to heat shield, has heat-barrier material in heat shield.
Description
Technical field
The utility model relates to generating set noise elimination technique fields, and in particular to a kind of structure is simple, manufactures and is assembled into
This cheap, significant diesel generating set low-frequency noise silencer of erasure effect.
Background technique
Currently, with the improvement of people ' s living standards and the promotion to product quality performance attention rate, low noise or quiet
Attention of the sound working equipment increasingly by client and developer.Solve generating set noise problem be also it is extremely urgent,
Application No. is 201120244707.9 utility model patents to disclose a kind of generating set impedance complex formula low noise noise reduction
Device, but the muffler internal structure is complicated, and manufacturing cost is high, and the assembly process is complicated.
Summary of the invention
A kind of simple and compact for structure, system is provided the purpose of the utility model is to overcome the deficiencies in the prior art
Make and assemble the apparent diesel generating set low-frequency noise silencer of low in cost and noise reduction effect.
The technical solution of the utility model is achieved in that
A kind of diesel generating set low-frequency noise silencer, including silencer shell, air inlet pipe and exhaust elbow, described disappears
The both ends of sound device shell are respectively arranged with air inlet end-plate and exhaust end-plate, and air inlet pipe passes through air inlet end-plate and extends into noise elimination
In device shell, exhaust elbow be fixed on exhaust end-plate on and be connected in silencer shell, be provided in the silencer shell
First partition and second partition, first partition and second partition are successively divided the cavity in silencer shell by inlet end to exhaust end
It is divided into the first chamber, the second chamber and third chamber, the first partition is arranged on silencer shell length direction close to inlet end
At 1/4 ~ 2/5, second partition is arranged at 3/5 ~ 3/4, and the air inlet pipe extends into the through the first chamber and first partition
Two chambers, described first is intracavitary to be provided with the first hush tube, and the first hush tube is the first columnar structured, described noise elimination pipe sleeve
Mounted in the outside of air inlet pipe, the both ends of the first hush tube are separately fixed in air inlet end-plate and first partition, the noise elimination
One group of second hush tube is additionally provided in device shell, one group of second hush tube is through second partition and is fixed on second partition
On, it is additionally provided with third hush tube on second partition, third hush tube is located at second intracavitary and be connected with third chamber, and third disappears
Sound pipe and air inlet pipe are coaxially disposed, and one group of second hush tube is distributed around the even circumferential of third hush tube, described
It is provided with sound attenuation hole on first hush tube, the second hush tube and third hush tube, is also provided in the air inlet pipe in silencer shell
There is sound attenuation hole；The circumference of the silencer shell is provided with heat shield, has cavity between heat shield and silencer shell, sets in cavity
It is equipped with heat-barrier material.
The heat-barrier material with a thickness of 3-10 ㎜.
The pore size of the sound attenuation hole of first hush tube, third hush tube is consistent, is 0.8-1.5 ㎜, Kong Jian
Away from 1.5-2 times for aperture, the aperture of the sound attenuation hole in air inlet pipe and on the second hush tube is 1-3 ㎜, and pitch of holes is aperture
2-3 times.
The caliber of first hush tube is 110-125 ㎜, and the caliber of the second hush tube is 30-50 ㎜, and third is eliminated the noise
The caliber of pipe is 50-70 ㎜.
The heat shield is fixedly connected by the way of welding with the both ends of silencer shell.
The heat-barrier material is asbestos.
The extending direction of first hush tube and the second hush tube is parallel with the axis of silencer shell.
The good effect of the utility model is: simple and compact for structure in the utility model silencer shell, easy to process, manufacture
It is low in cost with assembling, it is low to condition depended degree；Using resistive noise-cancelling theory, silencer shell is separated into three using partition
Cavity, and it is each it is intracavitary the hush tube with sound attenuation hole is arranged in a staggered manner, can make air-flow in silencer shell in each cavity
To sufficiently reflecting, rubbing and cancelling out each other, sound can be effectively converted to heat, and then achieve the purpose that noise elimination noise reduction；It eliminates the noise
Device shell outside weld is connected to heat shield, has heat-barrier material in heat shield, can be avoided due to silencer temperature is excessively high to Surrounding Parts
It impacts, to reduce requirement of the generating set to space, keeps structure more compact, can be widely applied to various mute or low
Noise generating set and power station.
Detailed description of the invention
Fig. 1 is the axial section structural schematic diagram of the utility model.
Fig. 2 is the A-A of Fig. 1 to schematic cross-sectional view.
Specific embodiment
As depicted in figs. 1 and 2, a kind of diesel generating set low-frequency noise silencer, including silencer shell 3, air inlet pipe 10
With exhaust elbow 1, the both ends of the silencer shell 3 have been respectively and fixedly connected with air inlet end-plate 9 and exhaust end-plate 2, air inlet pipe 10
It is extended into silencer shell across air inlet end-plate 9, sound attenuation hole, aperture 1-3 is distributed in the air inlet pipe in silencer shell
㎜, pitch of holes are 2-3 times of aperture, exhaust elbow 1 be fixed on be vented end-plate 2 and be connected in silencer shell, silencer
Be provided with first partition 12 and second partition 6 in shell 1, first partition 12 and second partition 6 by the cavity in silencer shell by into
Gas end is successively divided into the first chamber 11, the second chamber 7 and third chamber 14 to exhaust end, and first partition 12 is mounted on silencer shell length
On direction close to inlet end 1/4 ~ 2/5 at, second partition be mounted on silencer shell length direction close to inlet end 3/5 ~
At 3/4, air inlet pipe 10 extends into the second chamber 7 through the first chamber 11 and first partition 12, is equipped with first in the first chamber 11 and disappears
Sound pipe 8, the first hush tube 8 be it is columnar structured, the first hush tube 8 is sleeved on the outside of air inlet pipe 10, the two of the first hush tube 8
End is separately fixed on air inlet end-plate 9 and first partition 12, and one group of second hush tube 5 is also equipped in silencer shell 1, described
One group of second hush tube 5 through second partition 6 and being fixed on second partition 6, third noise elimination is also equipped on second partition 6
Pipe 15, third hush tube 15 are located in the second chamber 7 and are connected with third chamber 14, and third hush tube 15 is coaxially set with air inlet pipe 10
It sets, one group of second hush tube 5 is distributed around the even circumferential of third hush tube 15, first hush tube 8, second
It is equipped with sound attenuation hole on hush tube 5 and third hush tube 15, the pore size of the sound attenuation hole of the first hush tube and third hush tube
It unanimously, is 0.8-1.5 ㎜, pitch of holes is 1.5-2 times of aperture, and the aperture of the sound attenuation hole on the second hush tube is 1-3 ㎜, hole
Spacing is 2-3 times of aperture；The caliber of first hush tube is 110-125 ㎜, and the caliber of the second hush tube is 30-50 ㎜, third
The caliber of hush tube is 50-70 ㎜, the extending direction of the first hush tube 8 and the second hush tube 5 with the axis phase of silencer shell 3
In parallel；The circumferential weld of silencer shell 3 is connected to heat shield 4, there is cavity between heat shield 4 and silencer shell 3, in cavity filled with every
Hot material 13, heat-barrier material 13 are asbestos, heat-barrier material 13 with a thickness of 3-10 ㎜, zero around effective protection silencer
Part.
Claims (7)
1. a kind of diesel generating set low-frequency noise silencer, including silencer shell, air inlet pipe and exhaust elbow, feature exist
In: the both ends of the silencer shell are respectively arranged with air inlet end-plate and exhaust end-plate, and air inlet pipe passes through air inlet end-plate
Extend into silencer shell, exhaust elbow be fixed on exhaust end-plate on and be connected in silencer shell, the noise elimination
Be provided with first partition and second partition in device shell, first partition and second partition by the cavity in silencer shell by inlet end extremely
Exhaust end is successively divided into the first chamber, the second chamber and third chamber, and the first partition is arranged on silencer shell length direction
Close to inlet end 1/4 ~ 2/5 at, second partition be arranged at 3/5 ~ 3/4, the air inlet pipe through the first chamber and first every
Plate extends into the second chamber, and described first be intracavitary to be provided with the first hush tube, the first hush tube be it is columnar structured, it is described
First hush tube is sleeved on the outside of air inlet pipe, and the both ends of the first hush tube are separately fixed at air inlet end-plate and first partition
On, one group of second hush tube is additionally provided in the silencer shell, one group of second hush tube runs through second partition simultaneously
It is fixed on second partition, third hush tube is additionally provided on second partition, third hush tube is located at the second intracavitary and and third
Chamber is connected, and third hush tube and air inlet pipe are coaxially disposed, and one group of second hush tube surrounds the circumference of third hush tube
It is uniformly distributed, is provided with sound attenuation hole on first hush tube, the second hush tube and third hush tube, in silencer shell
Sound attenuation hole is also equipped in air inlet pipe；The circumference of the silencer shell is provided with heat shield, between heat shield and silencer shell
There is cavity, is provided with heat-barrier material in cavity.
2. diesel generating set low-frequency noise silencer according to claim 1, it is characterised in that: the heat-barrier material
With a thickness of 3-10 ㎜.
3. diesel generating set low-frequency noise silencer according to claim 1, it is characterised in that: described
One hush tube, third hush tube sound attenuation hole pore size it is consistent, be 0.8-1.5 ㎜, pitch of holes is the 1.5-2 in aperture
Times, the aperture of air inlet pipe and the sound attenuation hole on the second hush tube is 1-3 ㎜, and pitch of holes is 2-3 times of aperture.
4. diesel generating set low-frequency noise silencer according to claim 1, it is characterised in that: described first is eliminated the noise
The caliber of pipe is 110-125 ㎜, and the caliber of the second hush tube is 30-50 ㎜, and the caliber of third hush tube is 50-70 ㎜.
5. diesel generating set low-frequency noise silencer according to claim 1, it is characterised in that: the heat shield with
The both ends of silencer shell are fixedly connected by the way of welding.
6. diesel generating set low-frequency noise silencer according to claim 1, it is characterised in that: the heat-barrier material
For asbestos.
7. diesel generating set low-frequency noise silencer according to claim 1, it is characterised in that: described first is eliminated the noise
The extending direction of pipe and the second hush tube is parallel with the axis of silencer shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820868660.5U CN208396777U (en) | 2018-06-06 | 2018-06-06 | Diesel generating set low-frequency noise silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820868660.5U CN208396777U (en) | 2018-06-06 | 2018-06-06 | Diesel generating set low-frequency noise silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208396777U true CN208396777U (en) | 2019-01-18 |
Family
ID=65134540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820868660.5U Active CN208396777U (en) | 2018-06-06 | 2018-06-06 | Diesel generating set low-frequency noise silencer |
Country Status (1)
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| CN (1) | CN208396777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723926A (en) * | 2019-01-28 | 2019-05-07 | 西南石油大学 | A kind of combined type Gas Exhausting Muffle |
| CN109945005A (en) * | 2019-04-03 | 2019-06-28 | 西南石油大学 | A kind of gas air releasing silencer |
-
2018
- 2018-06-06 CN CN201820868660.5U patent/CN208396777U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723926A (en) * | 2019-01-28 | 2019-05-07 | 西南石油大学 | A kind of combined type Gas Exhausting Muffle |
| CN109945005A (en) * | 2019-04-03 | 2019-06-28 | 西南石油大学 | A kind of gas air releasing silencer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 No.50 Dongqing street, high tech Development Zone, Zhengzhou City, Henan Province Patentee after: Zhengzhou Foguang power generation equipment Co.,Ltd. Address before: 450001 No.50 Dongqing street, high tech Development Zone, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU FOGUANG POWER GENERATION EQUIPMENT Co.,Ltd. |