CN204663641U - Noise reduction exhaust hose and diesel generator thereof - Google Patents
Noise reduction exhaust hose and diesel generator thereof Download PDFInfo
- Publication number
- CN204663641U CN204663641U CN201520213293.1U CN201520213293U CN204663641U CN 204663641 U CN204663641 U CN 204663641U CN 201520213293 U CN201520213293 U CN 201520213293U CN 204663641 U CN204663641 U CN 204663641U
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- CN
- China
- Prior art keywords
- noise reduction
- flexible pipe
- exhaust hose
- reduction exhaust
- acoustical panel
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Abstract
The utility model relates to noise reduction technical field, especially a kind of noise reduction exhaust hose and diesel generator thereof, comprise the flexible pipe with hollow cavity, the two ends of described flexible pipe have suction port and air outlet, silencer is provided with in described flexible pipe, the length of described silencer is less than the length of described flexible pipe, air-flow is resolved into the faint tiny air-flow of countless stock by the acoustical panel arranged layer by layer by noise reduction exhaust hose of the present utility model, the object of noise reduction is reached with this, the secondary noise reduction through hole of hush pipe can weaken a part of air-flow, can prevent air-flow from getting lodged in the object reaching noise reduction between acoustical panel with this simultaneously, the utility model structure is simple, cost is low, good muffling effect.
Description
Technical field
The utility model relates to noise reduction technical field, especially a kind of noise reduction exhaust hose and diesel generator thereof.
Background technique
Internal-combustion engine is in modern production, status in life cannot replace, if diesel generator is with its good Economy and power performance, be widely used in industrial and mining enterprise's production and operation, process along with exhaust can give off very large noise, have a strong impact on the normal productive life of people, larger noise can produce harm to the sense of hearing of people, so how reducing or abating the noise is the emphasis that people pay close attention to all the time always, existing diesel generator passes through the silencer that one, the flexible pipe external world is very huge, cause cost very high, and increase the volume of diesel generator.
Model utility content
The technical problems to be solved in the utility model is: in order to solve existing silencer complex structure, expensive problem, now provides a kind of noise reduction exhaust hose air-flow strong for impact successively being resolved into countless tiny weak gas flow by noise reduction through hole.
The utility model solves the technological scheme that its technical problem adopts: a kind of noise reduction exhaust hose, comprise the flexible pipe with hollow cavity, the two ends of described flexible pipe have suction port and air outlet, silencer is provided with in described flexible pipe, the length of described silencer is less than the length of described flexible pipe, flexible pipe can bend on the one hand to be convenient to install, all right vibration damping on the other hand, and cost is low.
Further, described silencer comprises and is fixed in flexible pipe and has the hush pipe of central through bore, one end end face of described hush pipe near air outlet is provided with the first acoustical panel, the edge of described first acoustical panel is fixedly connected with the cavity inner wall of described flexible pipe, some second acoustical panels are disposed with in the axial direction in described central through bore, described first acoustical panel and the second acoustical panel are provided with multiple main noise reduction through hole, the air-flow of coming in from suction port enters flexible pipe, air-flow is resolved into the tiny air-flow of countless stock by the main noise reduction through hole on the second acoustical panel, eventually pass through the second acoustical panel layer by layer, it is gently faint that air-flow becomes, reach the object of noise reduction.
Get lodged between acoustical panel to prevent air-flow, further, the sidewall of described hush pipe is provided with multiple secondary noise reduction through hole, an air-flow part in hush pipe can be discharged from the secondary noise reduction through hole of hush pipe, effectively prevents air-flow from getting lodged between the second acoustical panel or between the first acoustical panel and the second acoustical panel.
In order to reach better erasure effect, further, the outside of described hush pipe is enclosed with soundproof material, and soundproof material can by a part of air-flow.
To hush pipe, get lodged in main bloop in order to preventing exhaust to be blown by soundproof material, further, described soundproof material extends parcel to the position of hush pipe between two second acoustical panels of suction port one end from the first acoustical panel.
Further, described flexible pipe is bellows, and bellows softness has well damping.
In order to reach better noise reduction and effectiveness in vibration suppression, further, the outer surface of described soundproof material contacts with the trough face of bellows inner chamber, so just makes air-flow major part rush in hush pipe and passes through, and soundproof material comparatively softness there is good effectiveness in vibration suppression.
Preferably, described soundproof material is asbestos.
The conveniently installation of noise reduction exhaust hose, further, the suction port of described flexible pipe is connected with inlet flange joint by tracheae, and the air outlet of described flexible pipe is connected with by tracheae flanged joint of giving vent to anger.
Be fixed on for a long time in hush pipe to allow the second acoustical panel, further, also positioning rod is provided with in described central through bore, described positioning rod one end is fixedly connected with described first acoustical panel, the other end of described positioning rod runs through some second acoustical panels be arranged in central through bore successively, makes the second acoustical panel can not run-off the straight under the impact of one strand of air-flow.
Preferably, described main noise reduction through hole is circular, and its diameter is 2mm.
A kind of diesel generator, has noise reduction exhaust hose described above.
The beneficial effects of the utility model are: noise reduction exhaust hose of the present utility model can be convenient to install by free bend when mounted, and can vibration damping, silencer is arranged in flexible pipe and greatly reduces cost, by the acoustical panel arranged layer by layer, air-flow is resolved into the faint tiny air-flow of countless stock, the object of noise reduction is reached with this, the secondary noise reduction through hole of hush pipe can weaken a part of air-flow, can prevent air-flow from getting lodged in the object reaching noise reduction between acoustical panel with this simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the schematic diagram of the utility model embodiment 1;
Fig. 2 is the schematic diagram of acoustical panel in the utility model embodiment 1;
Fig. 3 is the sectional view of hush pipe in the utility model embodiment 1;
In figure: 1, flexible pipe, 2, asbestos, 3, hush pipe, 4, central through bore, the 5, second acoustical panel, 6, positioning rod, 7, inlet flange joint, 8, flanged joint of giving vent to anger, 9, main noise reduction through hole, 10, secondary noise reduction through hole, the 11, first acoustical panel, 12, suction port, 13, air outlet.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Shown in embodiment 1,2 and 3, a kind of noise reduction exhaust hose 1, comprise the flexible pipe 1 with hollow cavity, the two ends of described flexible pipe 1 have suction port 12 and air outlet 13, be provided with silencer in described flexible pipe 1, the length of described silencer is less than the length of described flexible pipe 1, and flexible pipe 1 one aspect can bend to be convenient to install, all right vibration damping on the other hand, and cost is low.
Described silencer comprises and is fixed in flexible pipe 1 and has the hush pipe 3 of central through bore 4, one end end face of described hush pipe 3 near air outlet 13 is provided with the first acoustical panel 11, the edge of described first acoustical panel 11 is fixedly connected with the cavity inner wall of described flexible pipe 1, some second acoustical panels 5 are disposed with in the axial direction in described central through bore 4, described first acoustical panel 11 and the second acoustical panel 5 are provided with multiple main noise reduction through hole 9, the air-flow of coming in from suction port 12 enters flexible pipe 1, air-flow is resolved into the tiny air-flow of countless stock by the main noise reduction through hole 9 on the second acoustical panel 5, eventually pass through the second acoustical panel 5 layer by layer, it is gently faint that air-flow becomes, reach the object of noise reduction.
The sidewall of described hush pipe 3 is provided with multiple secondary noise reduction through hole 10, the air-flow part in hush pipe 3 can be discharged from the secondary noise reduction through hole 10 of hush pipe 3, effectively prevents air-flow from getting lodged between the second acoustical panel 5 or between the first acoustical panel 11 and the second acoustical panel 5.
The outside of described hush pipe 3 is enclosed with soundproof material, and soundproof material can by a part of air-flow.
The position of described soundproof material from the first acoustical panel 11 extension parcel to hush pipe 3 between two second acoustical panels 5 of suction port 12 one end.
Described flexible pipe 1 is bellows, and bellows softness has well damping.
The outer surface of described soundproof material contacts with the trough face of bellows inner chamber, so just makes air-flow major part rush in hush pipe 3 and passes through, and soundproof material comparatively softness there is good effectiveness in vibration suppression.
Described soundproof material is asbestos 2.
The suction port 12 of described flexible pipe 1 is connected with inlet flange joint 7 by tracheae, and the air outlet 13 of described flexible pipe 1 is connected with by tracheae flanged joint 8 of giving vent to anger.
Positioning rod 6 is also provided with in described central through bore 4, described positioning rod 6 one end is fixedly connected with described first acoustical panel 11, the other end of described positioning rod 6 runs through some second acoustical panels 5 be arranged in central through bore 4 successively, makes the second acoustical panel 5 can not run-off the straight under the impact of one strand of air-flow.
Preferably, described main noise reduction through hole 9 is circular, and its diameter is 2mm.
Embodiment 2
Embodiment 2 is a kind of oil recovery generators, and its relief opening is connected with noise reduction exhaust hose 1.
Working procedure of the present utility model and principle:
Outlet pipe is arranged to flexible pipe 1 can bend as required when mounted, all right vibration damping, silencer is arranged in flexible pipe 1 and greatly reduces cost, after air-flow enters flexible pipe 1, major part can directly enter hush pipe 3, finally by the first acoustical panel 11, air-flow is resolved into the faint tiny air-flow of countless stock by the second acoustical panel 5 arranged layer by layer, also have a air-flow can enter in asbestos 2, also can enter in hush pipe 3 by secondary noise reduction through hole 10 from asbestos 2, countless stock reaches noise reduction object with this can be resolved into equally, the secondary noise reduction through hole 10 of hush pipe 3 can weaken the faint tiny air-flow of a part of air-flow, secondary noise reduction through hole 10 on hush pipe 3 can prevent air-flow from getting lodged between the second acoustical panel 5 or between the second acoustical panel 5 and the first acoustical panel 11, meanwhile the heat of internal-combustion engine is along with the discharge of one piece, air-flow.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (12)
1. a noise reduction exhaust hose, comprise the flexible pipe (1) with hollow cavity, the two ends of described flexible pipe (1) have suction port (12) and air outlet (13), it is characterized in that: described flexible pipe is provided with silencer in (1), the length of described silencer is less than the length of described flexible pipe (1).
2. noise reduction exhaust hose according to claim 1, it is characterized in that: described silencer comprises and is fixed in flexible pipe (1) and has the hush pipe (3) of central through bore (4), one end end face of described hush pipe (3) near air outlet (13) is provided with the first acoustical panel (11), the edge of described first acoustical panel (11) is fixedly connected with the cavity inner wall of described flexible pipe (1), some second acoustical panels (5) are disposed with in the axial direction in described central through bore (4), described first acoustical panel (11) and the second acoustical panel (5) are provided with multiple main noise reduction through hole (9).
3. noise reduction exhaust hose according to claim 2, is characterized in that: the sidewall of described hush pipe (3) is provided with multiple secondary noise reduction through hole (10).
4. noise reduction exhaust hose according to claim 3, is characterized in that: the outside of described hush pipe (3) is enclosed with soundproof material.
5. noise reduction exhaust hose according to claim 4, is characterized in that: the position of described soundproof material from the first acoustical panel (11) extension parcel to hush pipe (3) between two second acoustical panels (5) of suction port (12) one end.
6. noise reduction exhaust hose according to claim 5, is characterized in that: described flexible pipe (1) is bellows.
7. noise reduction exhaust hose according to claim 6, is characterized in that: the outer surface of described soundproof material contacts with the trough face of bellows inner chamber.
8. the noise reduction exhaust hose according to claim 4 or 7, is characterized in that: described soundproof material is asbestos (2).
9. noise reduction exhaust hose according to claim 1 and 2, it is characterized in that: the suction port (12) of described flexible pipe (1) is connected with inlet flange joint (7) by tracheae, the air outlet (13) of described flexible pipe (1) is connected with flanged joint of giving vent to anger (8) by tracheae.
10. noise reduction exhaust hose according to claim 2, it is characterized in that: in described central through bore (4), be also provided with positioning rod (6), described positioning rod (6) one end is fixedly connected with described first acoustical panel (11), and the other end of described positioning rod (6) runs through some second acoustical panels (5) be arranged in central through bore (4) successively.
11. noise reduction exhaust hoses according to claim 2, is characterized in that: described main noise reduction through hole (9) is for circular, and its diameter is 2mm.
12. 1 kinds of diesel generators, is characterized in that having noise reduction exhaust hose described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520213293.1U CN204663641U (en) | 2015-04-09 | 2015-04-09 | Noise reduction exhaust hose and diesel generator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520213293.1U CN204663641U (en) | 2015-04-09 | 2015-04-09 | Noise reduction exhaust hose and diesel generator thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204663641U true CN204663641U (en) | 2015-09-23 |
Family
ID=54134031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520213293.1U Expired - Fee Related CN204663641U (en) | 2015-04-09 | 2015-04-09 | Noise reduction exhaust hose and diesel generator thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204663641U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775886A (en) * | 2015-04-09 | 2015-07-15 | 常州市双娇管业有限公司 | Silencing exhaust hose and diesel generator thereof |
| CN109109620A (en) * | 2018-07-25 | 2019-01-01 | 济南吉美乐电源技术有限公司 | A kind of vehicle mounted square cabin diesel generating set sound-deadening and noise-reducing smoke guide device |
-
2015
- 2015-04-09 CN CN201520213293.1U patent/CN204663641U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775886A (en) * | 2015-04-09 | 2015-07-15 | 常州市双娇管业有限公司 | Silencing exhaust hose and diesel generator thereof |
| CN109109620A (en) * | 2018-07-25 | 2019-01-01 | 济南吉美乐电源技术有限公司 | A kind of vehicle mounted square cabin diesel generating set sound-deadening and noise-reducing smoke guide device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150923 Termination date: 20180409 |