CN219656283U - Noise-reducing exhaust pipeline - Google Patents
Noise-reducing exhaust pipeline Download PDFInfo
- Publication number
- CN219656283U CN219656283U CN202321255191.7U CN202321255191U CN219656283U CN 219656283 U CN219656283 U CN 219656283U CN 202321255191 U CN202321255191 U CN 202321255191U CN 219656283 U CN219656283 U CN 219656283U
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- Prior art keywords
- pipe
- conical
- exhaust pipeline
- exhaust
- silencing
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- 230000030279 gene silencing Effects 0.000 claims abstract description 16
- 230000003584 silencer Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a noise reduction exhaust pipeline which comprises a fan box, wherein an exhaust pipeline is connected to an air outlet of the fan box, a conical pipe orifice is fixedly arranged at the air outlet of the fan box, the exhaust pipeline is connected to the conical pipe orifice, the exhaust pipeline comprises a silencing pipe section, a conical connecting pipe head, a corner and a fairing which are sequentially and fixedly connected, the silencing pipe section is formed by connecting a plurality of silencers in series, and the conical pipe orifice, the conical connecting pipe head and the fairing are all in a flaring shape with an enlarged outlet end. Compared with the prior art, the utility model has the following advantages: the air flow is outwards dispersed by utilizing the silencing holes of the silencer, so that noise can be reduced during air guide; the exhaust pipe is provided with a conical pipe orifice, a conical connecting pipe head and a fairing which are flared, so that the airflow can be diffused and noise reduced; thereby effectively reducing noise in the exhaust process of the exhaust pipeline.
Description
Technical Field
The utility model relates to the field of noise reduction and exhaust, in particular to a noise reduction and exhaust pipeline.
Background
The air outlet of the fan case is connected with an exhaust pipe, and exhaust is performed outwards through the exhaust pipe. In the prior art, the exhaust pipe is an air pipe with equal diameter, air flow is discharged outwards through the air pipe with equal diameter, the air flow is not effectively diffused, the noise of the outlet end of the exhaust pipe is not different from the noise of the inlet end of the exhaust pipe, sometimes even the noise of the inlet end of the exhaust pipe is larger than the noise of the inlet end of the exhaust pipe, the exhaust pipe has no noise reduction effect, and the exhaust noise is large.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a noise-reducing exhaust pipeline which can effectively reduce noise during exhaust.
The utility model is realized by the following technical scheme:
the utility model provides an exhaust line falls in a noise, includes the fan case, the air outlet department of fan case is connected with exhaust line, the fixed toper mouth of pipe that is provided with in air outlet department of fan case, exhaust line connects on the toper mouth of pipe, exhaust line is including fixed connection's amortization pipeline section, toper connecting tube head, corner and the radome fairing in proper order, and amortization pipeline section is established ties by a plurality of silencers and is formed, and toper mouth of pipe, toper connecting tube head and radome fairing all are the flaring form that the exit end was enlarged.
Further, the silencer comprises an inner pipe barrel and an outer pipe barrel which are sleeved inside and outside, a plurality of silencing holes are formed in the wall of the inner pipe barrel, an annular cavity is formed between the outer pipe barrel and the inner pipe barrel, two ends of the outer pipe barrel are necking ends which are necking, and the necking ends at two ends of the outer pipe barrel are fixedly connected with two ends of the inner pipe barrel respectively.
Furthermore, in the silencing pipe section, the adjacent silencers are fixedly connected in a flange connection mode.
Further, the silencer pipe section and the bottom of the corner are supported on the ground through support frames respectively.
Compared with the prior art, the utility model has the following advantages:
according to the noise reduction exhaust pipeline, the silencing pipe section formed by connecting the plurality of silencers in series is arranged on the exhaust pipeline, and the silencing holes of the silencers are utilized to disperse airflow outwards, so that noise can be reduced during air guide; the exhaust pipe is provided with a conical pipe orifice, a conical connecting pipe head and a fairing which are flared, so that the airflow can be diffused and noise reduced; thereby effectively reducing noise in the exhaust process of the exhaust pipeline.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a cross-sectional view of the muffler of the present utility model.
Reference numerals in the drawings: 1, a fan case; 2, a conical pipe orifice; 3, conical connecting tube heads; 4 corner; 5, a fairing; 6, a muffler; 7, an interior tube; 8, an outer cylinder; 9, silencing holes; 10 an annular cavity; 11 flange plates; 12 support frames.
Detailed Description
The following describes in detail the examples of the present utility model, which are implemented on the premise of the technical solution of the present utility model, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present utility model is not limited to the following examples.
Referring to fig. 1 to 2, the embodiment discloses a noise reduction exhaust pipeline, including fan case 1, the air outlet department of fan case 1 is connected with exhaust pipeline, and the air outlet department of fan case 1 is fixed to be provided with toper mouth of pipe 2, and exhaust pipeline connects on toper mouth of pipe 2, and exhaust pipeline includes fixed connection's amortization pipeline section, toper connector 3, corner 4 and radome fairing 5 in proper order, and amortization pipeline section is established ties by a plurality of silencers 6 and forms, and toper mouth of pipe 2, toper connector 3 and radome fairing 5 all are the flaring form that the exit end was enlarged.
The silencer 6 comprises an inner tube 7 and an outer tube 8 which are sleeved inside and outside, a plurality of silencing holes 9 are formed in the wall of the inner tube 7, an annular cavity 10 is formed between the outer tube 8 and the inner tube 7, the two ends of the outer tube 8 are necking ends which are necking, and the necking ends at the two ends of the outer tube 8 are fixedly connected with the two ends of the inner tube 7 respectively.
In the silencer pipe section, the adjacent silencers 6 are fixedly connected in a flange connection mode, the two ends of the outer cylinder body 8 of each silencer 6 are respectively provided with a flange plate 11, and the adjacent silencers 6 are fixedly connected through the flange plates 11 of the adjacent outer cylinder body 8.
The silencer section and the bottom of corner 4 are supported on the ground by means of a support frame 12, respectively.
When in use, the air flow of the fan box 1 sequentially passes through the conical pipe orifice 2, the silencing pipe section, the conical connecting pipe head 3 and the corner 4 and finally is discharged outwards through the fairing 5. The airflow can be diffused and noise reduced by virtue of the conical pipe orifice 2, the conical connecting pipe head 3 and the fairing 5 which are in the shape of a flaring; when passing through each silencer 6, the air flow is outwards dispersed through the silencing holes 9 on the inner pipe barrel 7, noise can be reduced during air guide, the two ends of the outer pipe body 8 are necking ends in necking shapes, the air flow can be repeatedly compressed and expanded during flow guide, and the noise reduction effect is improved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (4)
1. The utility model provides an exhaust pipeline of making an uproar falls, includes the fan case, the air outlet department of fan case is connected with exhaust pipeline, its characterized in that: the air outlet of the fan box is fixedly provided with a conical pipe orifice, the exhaust pipeline is connected to the conical pipe orifice, the exhaust pipeline comprises a silencing pipe section, a conical connecting pipe head, a corner and a fairing which are sequentially and fixedly connected, the silencing pipe section is formed by connecting a plurality of silencers in series, and the conical pipe orifice, the conical connecting pipe head and the fairing are all in a flaring shape with an enlarged outlet end.
2. A noise reducing exhaust pipe as defined in claim 1, wherein: the silencer comprises an inner pipe barrel and an outer pipe barrel which are sleeved inside and outside, wherein a plurality of silencing holes are formed in the wall of the inner pipe barrel, an annular cavity is formed between the outer pipe barrel and the inner pipe barrel, two ends of the outer pipe barrel are necking ends which are necking, and the necking ends at two ends of the outer pipe barrel are fixedly connected with two ends of the inner pipe barrel respectively.
3. A noise reducing exhaust pipe as defined in claim 2, wherein: in the silencing pipe section, the adjacent silencers are fixedly connected in a flange connection mode.
4. A noise reducing exhaust pipe as defined in claim 2, wherein: the silencing pipe section and the bottom of the corner are respectively supported on the ground through a supporting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321255191.7U CN219656283U (en) | 2023-05-19 | 2023-05-19 | Noise-reducing exhaust pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321255191.7U CN219656283U (en) | 2023-05-19 | 2023-05-19 | Noise-reducing exhaust pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219656283U true CN219656283U (en) | 2023-09-08 |
Family
ID=87859063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321255191.7U Active CN219656283U (en) | 2023-05-19 | 2023-05-19 | Noise-reducing exhaust pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219656283U (en) |
-
2023
- 2023-05-19 CN CN202321255191.7U patent/CN219656283U/en active Active
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