CN203835497U - Noise eliminating structure of exhaust purifying silencer - Google Patents
Noise eliminating structure of exhaust purifying silencer Download PDFInfo
- Publication number
- CN203835497U CN203835497U CN201420212603.3U CN201420212603U CN203835497U CN 203835497 U CN203835497 U CN 203835497U CN 201420212603 U CN201420212603 U CN 201420212603U CN 203835497 U CN203835497 U CN 203835497U
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- pipe
- central diaphragm
- shell
- outlet pipe
- guide plate
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Abstract
The utility model discloses a noise eliminating structure of an exhaust purifying silencer. The exhaust purifying silencer comprises a housing, a median separation plate, an exhaust pipe and an air outlet pipe, wherein the interior of the housing is divided into the upper layer and a lower layer via the median separation plate. The noise eliminating structure is characterized in that the median separation plate is provided with an air inlet pipe, a liner pipe, a catalytic device and a diversion pipe, wherein an opening of the air inlet pipe on the median separation plate faces the lower layer; the air inlet pipe is connected with the exhaust pipe; an opening of the liner pipe on the median separation plate faces the upper layer; the liner pipe is connected with the air outlet pipe; the catalytic device is placed between the air inlet pipe and the liner pipe; the liner pipe is arranged between the catalytic device and the diversion pipe; and two ends of the division pipe are communicated with the upper layer and the lower layer. The beneficial effects of the noise eliminating structure of the exhaust purifying silencer are that with a guide plate, a wind current pipe and a through hole, an interference performance of air flows is enhanced and noise reducing effect is improved; with the guide plate and the wind current pipe, noise reducing efficiency is improved; and the noise eliminating structure is simply structured with convenient operation and obvious noise elimination effect.
Description
Technical field
The utility model relates to silencing apparatus correlative technology field, refers in particular to a kind of noise elimination mechanism of exhaust purging muffler.
Background technique
Silencing apparatus is to allow air-flow to pass through, but can stop or reduce a kind of device of sound transmission, is the important measures of eliminating air power noise.Silencing apparatus can stop sound wave propagation, allows air-flow to pass through, and is the effective tool of controlling noise.Silencing apparatus kind is a lot, but studies carefully its noise elimination mechanism, it can be divided into six kinds of main types again, i.e. dissipative muffler, reactive muffler, impedance complex formula silencing apparatus, micropunch plate muffler, micropole diffusor and active silencer.Existing silencing apparatus, adopts impedance composite noise-cancelling theory mostly.Due to reasons such as complex structure, weight are large, high temperature oxidation sound absorption filler, and high velocity air impacts sound absorption filler, aqueous vapor infiltration sound absorption filler, the situation such as silencing apparatus is easy to occur that maintenance is frequent, soundproof effect is poor, and life cycle is short.And existing exhaust purging muffler is mainly that air-flow is carried out to purified treatment, often have corresponding weakening at processing noise elimination this respect, cause its noise elimination noise reduction ability to reduce.
Chinese patent notice of authorization number: CN100379953C, April 9 2008 notice of authorization day, a kind of muffler of motor vehicle for exhaust gas purification is disclosed, it comprises housing, the suction tude of settling in housing one end, the steam outlet pipe of settling at the housing the other end, the front capping of installing in the housing one end that is positioned at suction tude, and the rear seal-cover of installing at the housing the other end that is positioned at steam outlet pipe; It is also included in the inner core that wherein one end of enclosure interior arrangement is fixing with suction tude sealing, the other end is eddy flow air outlet and be connected with steam outlet pipe, inner core positioned inside and by the fixing cyclone separator of support, the catalysis heat-transfer device of installing between housing and inner core, and the front venetian blind air suction inlet arranging in front capping.This invention deficiency is, can not carry out well eliminating the noise and processing to air-flow, causes its noise reduction capability to reduce.
Model utility content
The utility model is to have above-mentioned deficiency in order to overcome in prior art, and the noise elimination mechanism of the exhaust purging muffler that a kind of noise elimination noise reduction ability is high is provided.
To achieve these goals, the utility model is by the following technical solutions:
A kind of noise elimination mechanism of exhaust purging muffler, exhaust purging muffler comprises shell, central diaphragm, outlet pipe and steam outlet pipe, described central diaphragm is divided into the inside of shell two-layer up and down, described central diaphragm is provided with suction tude, interior bile duct, catalysis device and ram's horns, the opening of described suction tude on central diaphragm is towards the lower floor of shell, described suction tude is connected with outlet pipe, the opening of described interior bile duct on central diaphragm is towards the upper strata of shell, described interior bile duct is connected with steam outlet pipe, described catalysis device is placed between suction tude and interior bile duct, described interior bile duct is placed between catalysis device and ram's horns, the two ends of described ram's horns are all communicated with the upper strata of shell and the lower floor of shell.
In the utility model, first the air-flow being entered by outlet pipe enters into the lower floor of shell by suction tude, part air-flow enters into upper strata by ram's horns from lower floor, part air-flow enters into upper strata by catalysis device from lower floor, thereby enter the air-flow on upper strata and interfere and realize the object of eliminating the noise from the air-flow that catalysis device enters upper strata from ram's horns, having improved noise reduction.
As preferably, described catalysis device comprises metal beehive catalyst converter and two guide plates, the outside of described metal beehive catalyst converter is provided with heat insulating tube, described heat insulating tube is arranged on central diaphragm, described metal beehive catalyst converter is arranged in heat insulating tube, described guide plate is arranged on central diaphragm and is placed in metal beehive catalyst converter top, and described metal beehive catalyst converter, heat insulating tube and guide plate distributes with the plane symmetry at central diaphragm place.Air-flow makes it enter into metal beehive catalyst converter by the guiding of guide plate, simultaneously air-flow and guide plate bump afterwards with lower floor in air-flow also can interfere, indirectly improved the effect of noise elimination noise reduction.
As preferably, the complete covering metal honeycomb of described guide plate catalyst converter, described guide plate is provided with targeting port, the direction that is oriented inside bile duct of described targeting port.The structural design of guide plate can make air-flow contact catalysis fully device on the one hand, and harmful air-flow can be transformed fully; On the other hand, air-flow and guide plate bump after also can with lower floor in air-flow also can interfere, indirectly improved the effect of noise elimination noise reduction.
As preferably, described central diaphragm is provided with some through holes.Can be effectively carry out further shunting to air-flow and process, air-flow after shunting is interfered mutually and improve the efficiency of noise elimination noise reduction.
As preferably, described ram's horns be shaped as U-shaped, the two ends of described ram's horns are oriented the direction of catalysis device.On the one hand can effectively shunt to air-flow processings, make to shunt air-flow afterwards and mutually interfere and improve acoustical absorptivity; On the other hand, according to ram's horns towards make air-flow toward guide plate flow, with metal beehive catalyst converter process after air-flow interfere, further improve the effect of noise elimination noise reduction.
As preferably, in described steam outlet pipe, be provided with spark arrester.Spark arrester can effectively be eliminated the spark in air-flow on the one hand, further air-flow is carried out to noise elimination noise reduction processing on the other hand according to the structure of spark arrester.
The beneficial effects of the utility model are: by the design of guide plate, airflow tube and through hole, strengthened the interference effect of air-flow, improved the effect of sound-deadening and noise-reducing; The Position Design of guide plate and airflow tube, has improved the efficiency of noise elimination noise reduction, simple in structure, easy to operate, noise elimination noise reduction successful.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is cross-sectional view of the present utility model.
In figure: 1. outlet pipe, 2. suction tude, 3. interior bile duct, 4. metal beehive catalyst converter, 5. guide plate, 6. steam outlet pipe, 7. spark arrester, 8. through hole, 9. ram's horns, 10. central diaphragm, 11. shells, 12. upper stratas, 13. lower floors, 14. heat insulating tubes.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As Fig. 1, in embodiment described in Fig. 2, a kind of noise elimination mechanism of exhaust purging muffler, exhaust purging muffler comprises shell 11, central diaphragm 10, outlet pipe 1 and steam outlet pipe 6, central diaphragm 10 is divided into the inside of shell 11 two-layer up and down, central diaphragm 10 and shell 11 seamless links, central diaphragm 10 is provided with suction tude 2, interior bile duct 3, catalysis device and ram's horns 9, suction tude 2, interior bile duct 3 and ram's horns 9 are all integrated with central diaphragm 10, the opening of suction tude 2 on central diaphragm 10 is towards the lower floor 13 of shell 11, suction tude 2 and outlet pipe 1 seamless link, the opening of interior bile duct 3 on central diaphragm 10 is towards the upper strata 12 of shell 11, interior bile duct 3 and steam outlet pipe 6 seamless links, in steam outlet pipe 6, be provided with spark arrester 7, catalysis device is placed between suction tude 2 and interior bile duct 3, interior bile duct 3 is placed between catalysis device and ram's horns 9, the two ends of ram's horns 9 are all communicated with the upper strata 12 of shell 11 and the lower floor 13 of shell 11.Wherein: central diaphragm 10 be provided with in 8, three through holes 8 of three through holes wherein two be distributed in guide plate 5 one sides, another one is distributed in ram's horns 9 one sides.Ram's horns 9 be shaped as U-shaped, the two ends of ram's horns 9 are oriented the direction of targeting port on guide plate 5.
Catalysis device comprises metal beehive catalyst converter 4 and two guide plates 5, the outside of metal beehive catalyst converter 4 is provided with heat insulating tube 14, heat insulating tube 14 is arranged on central diaphragm 10, metal beehive catalyst converter 4 is arranged in heat insulating tube 14, guide plate 5 is arranged on central diaphragm 10 and is placed in metal beehive catalyst converter 4 tops, and metal beehive catalyst converter 4, heat insulating tube 14 and guide plate 5 distribute with the plane symmetry at central diaphragm 10 places.Wherein: the complete covering metal honeycomb catalyst converter 4 of guide plate 5, guide plate 5 is provided with targeting port, the direction that is oriented inside bile duct 3 of targeting port.
In the utility model, the air-flow being entered by outlet pipe 1 enters into the lower floor 13 of shell 11 by suction tude 2, part air-flow enters into the upper strata 12 of shell 11 by through hole 8 shuntings, the lower floor 13 that part air-flow enters into the upper strata 12 of shell 11 by ram's horns 9 shunting and is back to shell 11 interferes with air-flow, most of air-flow enters into the upper strata 12 that enters into shell 11 after metal beehive catalyst converter 4 is changed by guide plate 5, three strands of air-flows that exist in the upper strata 12 of shell 11 like this can interfere; Air-flow in shell 11 upper stratas 12 also can enter into the lower floor 13 of shell 11 simultaneously, makes the air-flow in shell 11 that sufficient interference can occur, to reach the object that improves noise elimination noise reduction; In addition, the air-flow of discharging from interior bile duct 3 will be through the spark arrester 7 of steam outlet pipe 6, due to the structure of spark arrester 7, makes the air-flow can be by further noise elimination noise reduction.
Claims (6)
1. the noise elimination mechanism of an exhaust purging muffler, exhaust purging muffler comprises shell (11), central diaphragm (10), outlet pipe (1) and steam outlet pipe (6), described central diaphragm (10) is divided into two-layer up and down by the inside of shell (11), it is characterized in that, described central diaphragm (10) is provided with suction tude (2), interior bile duct (3), catalysis device and ram's horns (9), the opening of described suction tude (2) on central diaphragm (10) is towards the lower floor (13) of shell (11), described suction tude (2) is connected with outlet pipe (1), the opening of described interior bile duct (3) on central diaphragm (10) is towards the upper strata (12) of shell (11), described interior bile duct (3) is connected with steam outlet pipe (6), described catalysis device is placed between suction tude (2) and interior bile duct (3), described interior bile duct (3) is placed between catalysis device and ram's horns (9), the two ends of described ram's horns (9) are all communicated with the upper strata (12) of shell (11) and the lower floor (13) of shell (11).
2. the noise elimination mechanism of a kind of exhaust purging muffler according to claim 1, it is characterized in that, described catalysis device comprises metal beehive catalyst converter (4) and two guide plates (5), the outside of described metal beehive catalyst converter (4) is provided with heat insulating tube (14), described heat insulating tube (14) is arranged on central diaphragm (10), described metal beehive catalyst converter (4) is arranged in heat insulating tube (14), described guide plate (5) is arranged on central diaphragm (10) above and is placed in metal beehive catalyst converter (4) top, described metal beehive catalyst converter (4), heat insulating tube (14) and guide plate (5) distribute with the plane symmetry at central diaphragm (10) place.
3. the noise elimination mechanism of a kind of exhaust purging muffler according to claim 2, it is characterized in that, described guide plate (5) is covering metal honeycomb catalyst converter (4) completely, described guide plate (5) is provided with targeting port, the direction that is oriented inside bile duct (3) of described targeting port.
4. according to the noise elimination mechanism of a kind of exhaust purging muffler described in claim 1 or 2 or 3, it is characterized in that, described central diaphragm (10) is provided with some through holes (8).
5. the noise elimination mechanism of a kind of exhaust purging muffler according to claim 1, is characterized in that, described ram's horns (9) be shaped as U-shaped, the two ends of described ram's horns (9) are oriented the direction of catalysis device.
6. the noise elimination mechanism of a kind of exhaust purging muffler according to claim 1, is characterized in that, in described steam outlet pipe (6), is provided with spark arrester (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420212603.3U CN203835497U (en) | 2014-04-28 | 2014-04-28 | Noise eliminating structure of exhaust purifying silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420212603.3U CN203835497U (en) | 2014-04-28 | 2014-04-28 | Noise eliminating structure of exhaust purifying silencer |
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| Publication Number | Publication Date |
|---|---|
| CN203835497U true CN203835497U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420212603.3U Expired - Fee Related CN203835497U (en) | 2014-04-28 | 2014-04-28 | Noise eliminating structure of exhaust purifying silencer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351712A (en) * | 2016-10-14 | 2017-01-25 | 上海天纳克排气系统有限公司 | Silencer |
| CN106640316A (en) * | 2016-10-14 | 2017-05-10 | 上海天纳克排气系统有限公司 | Silencer |
| CN110088443A (en) * | 2016-12-22 | 2019-08-02 | 珀金斯发动机有限公司 | Water conservancy diversion shade assembly |
| CN113818950A (en) * | 2021-08-04 | 2021-12-21 | 宁波亿超消音科技有限公司 | Silencer capable of purifying gas |
-
2014
- 2014-04-28 CN CN201420212603.3U patent/CN203835497U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351712A (en) * | 2016-10-14 | 2017-01-25 | 上海天纳克排气系统有限公司 | Silencer |
| CN106640316A (en) * | 2016-10-14 | 2017-05-10 | 上海天纳克排气系统有限公司 | Silencer |
| CN106640316B (en) * | 2016-10-14 | 2019-03-15 | 上海天纳克排气系统有限公司 | Silencer |
| CN110088443A (en) * | 2016-12-22 | 2019-08-02 | 珀金斯发动机有限公司 | Water conservancy diversion shade assembly |
| CN110088443B (en) * | 2016-12-22 | 2022-01-25 | 珀金斯发动机有限公司 | Air guide sleeve assembly |
| US11274582B2 (en) | 2016-12-22 | 2022-03-15 | Perkins Engines Company Limited | Flow hood assembly |
| CN113818950A (en) * | 2021-08-04 | 2021-12-21 | 宁波亿超消音科技有限公司 | Silencer capable of purifying gas |
| CN113818950B (en) * | 2021-08-04 | 2022-08-30 | 宁波亿超消音科技有限公司 | Silencer capable of purifying gas |
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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 |
Granted publication date: 20140917 Termination date: 20190428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |