CN103603709A - Silencer - Google Patents
Silencer Download PDFInfo
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- CN103603709A CN103603709A CN201310641157.8A CN201310641157A CN103603709A CN 103603709 A CN103603709 A CN 103603709A CN 201310641157 A CN201310641157 A CN 201310641157A CN 103603709 A CN103603709 A CN 103603709A
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- space
- cylindrical shell
- inlet end
- barrel body
- air
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Abstract
The invention relates to a silencer which comprises a barrel body. The barrel body is provided with an air inlet end and an air outlet end. Two partition plates are arranged in the barrel body. The outer edges of the partition plates are connected with the inner wall of the barrel body in a sealing mode. A plurality of air current holes are formed in the circumferential direction of each partition plate. The partition plates separate the inner space of the barrel body into a first space, a second space and a third space which are different in volume. The air inlet end and the air outlet end are respectively connected with an air inlet pipe and an air outlet pipe. Exhaust holes are formed in the surface of the part, extending into the barrel body, of the air outlet pipe. Due to the fact that the inner space of the barrel body of the silencer is separated into three spaces different in volume by the partition plates with the air current holes, air currents can be made to be exhausted through an exhaust pipe after being dramatically increased or shrunk and going through several times of abrupt changes, sound waves are made to be reflected for several times to generate offset interference, and sound energy is remarkably reduced and exhausted, so that the purpose of noise elimination is achieved. The silencer achieves good noise elimination effect and is simple in structure and low in cost.
Description
Technical field
The invention belongs to silencing apparatus technical field, be specifically related to a kind of silencing apparatus.
Background technique
For eliminating the huge sound producing when motor is discharged the high temperature and high pressure gas after burning, automobile need to arrange silencing apparatus at exhaust duct place; Silencing apparatus can be divided into reactive muffler, dissipative muffler and impedance composite muffler three classes by noise-cancelling theory; Dissipative muffler absorbs acoustic energy by filling sucting sound material in exhaust duct and reaches noise elimination order; Reactive muffler is in silencing apparatus inside, the sectional area of pipeline is sharply strengthened or dwindled in a certain length part, makes sound wave when propagating, produce reflection and the Feng interference that disappears and reaches noise elimination object; Reactive muffler is better at low frequency, intermediate frequency soundproof effect; Improve high frequency soundproof effect, can adopt the sectional area of pipeline to have reactive muffler or the impedance complex formula silencing apparatus that repeatedly sharply strengthens or dwindle variation, the structure of current reactive muffler or impedance complex formula silencing apparatus is too complicated, is unfavorable for manufacturing.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above and a kind of silencing apparatus of simple in structure and good muffling effect is provided.
For achieving the above object, the present invention is by the following technical solutions:
A silencing apparatus, comprises cylindrical shell, and described cylindrical shell has inlet end and outlet side; In described cylindrical shell, be provided with two dividing plates, the outer rim of described dividing plate is connected with the inner wall sealing of described cylindrical shell, on described dividing plate, circumferentially offer a plurality of airflow holes, described dividing plate is separated into three the first space, second space and the 3rd spaces that volume is different by the inner space of described cylindrical shell, described inlet end and outlet side are equipped with respectively suction tude and steam outlet pipe, and the surface that described steam outlet pipe stretches into the part of described inner barrel offers exhaust port.
Described the first space, second space and bottom, the 3rd space are respectively equipped with outage.
Described inlet end and outlet side are respectively equipped with air inlet end cap and the end cap of giving vent to anger, described air inlet end cap and outlet side cover and offer respectively air-flow inlet/outlet, and described suction tude and steam outlet pipe are connected on described inlet end and outlet side through described air-flow inlet/outlet respectively.
The inner wall surface of described cylindrical shell is provided with acoustical liner.
Described acoustical liner adopts glass fibre cotton.
The inner wall surface of described acoustical liner and described cylindrical shell is bonding.
The present invention by being provided with two dividing plates in cylindrical shell described in having inlet end and outlet side, the outer rim of described dividing plate is connected with the inner wall sealing of described cylindrical shell, on described dividing plate, offer a plurality of airflow holes, described dividing plate is separated into three the first spaces that volume is different by the inner space of described cylindrical shell, second space and the 3rd space, described inlet end and outlet side are equipped with respectively suction tude and steam outlet pipe, the surface that described steam outlet pipe stretches into the part of described inner barrel offers exhaust port, thereby can pass through this three spaces and airflow hole, air-flow is sharply strengthened or dwindles to change by being discharged by outlet pipe, so repeatedly sudden change, make sound wave multiple reflections produce destructive interference, acoustic energy significantly reduces and exhaustion reaches noise elimination object, realize good erasure effect, and simple in structure, cost is low.
Accompanying drawing explanation
Figure 1 shows that the structural representation of the silencing apparatus that the embodiment of the present invention provides.
Embodiment
Below, in conjunction with example, substantive distinguishing features of the present invention and advantage are further described, but the present invention is not limited to listed embodiment.
Refer to Fig. 1, a kind of silencing apparatus, comprises cylindrical shell 1, and described cylindrical shell 1 has inlet end 11 and outlet side 12; In described cylindrical shell 1, be provided with two dividing plates 2,3, the outer rim of described dividing plate 2,3 is connected with the inner wall sealing of described cylindrical shell 1, on described dividing plate 2,3, along circumferential and close outer rim place, offer a plurality of airflow holes 4, described dividing plate 2,3 is separated into three the first space 5, second space 6 and the 3rd spaces 7 that volume is different by the inner space of described cylindrical shell 1, described inlet end 11 and outlet side 12 are equipped with respectively suction tude 13 and steam outlet pipe 14, and the surface that described steam outlet pipe 14 stretches into the part of described cylindrical shell 1 inside offers exhaust port 15.
Preferably, the volume in described the first space 5 is greater than the volume of described second space 6, and the volume in described the 3rd space 7 is greater than the volume of described second space 6.
Further, the volume in described the first space 5 is less than the volume in described the 3rd space 7.
Further, described the 1, second space 6 and 6 bottoms, the 3rd space are respectively equipped with outage (not shown), thereby can effectively the liquid producing be discharged, and prevent cylindrical shell to cause corrosion.
Further, described inlet end 11 and outlet side 12 are respectively equipped with air inlet end cap 8 and the end cap 9 of giving vent to anger, on described air inlet end cap 8 and the end cap 9 of giving vent to anger, offer respectively air-flow inlet/outlet (not shown), described suction tude 13 and steam outlet pipe divide 14 Chuan Guo not be connected on described inlet end 11 and outlet side 12 by described air-flow inlet/outlet.
Described airflow inlet is introduced in described cylindrical shell for the high temperature and high pressure gas that motor car engine is discharged, and behind described dividing plate and three spaces, by described flow outlet, is discharged.
Further, inwall 10 surfaces of described cylindrical shell 1 are provided with acoustical liner (not shown).
Further, described acoustical liner adopts glass fibre cotton.
Further, the inner wall surface of described acoustical liner and described cylindrical shell 1 is bonding.
As another embodiment, described dividing plate also can three or four, so just described cylindrical shell can be divided into four or five spaces, equally also can play good soundproof effect.
The present invention by being provided with two dividing plates in cylindrical shell described in having inlet end and outlet side, the outer rim of described dividing plate is connected with the inner wall sealing of described cylindrical shell, on described dividing plate, offer a plurality of airflow holes, described dividing plate is separated into three the first spaces that volume is different by the inner space of described cylindrical shell, second space and the 3rd space, described inlet end and outlet side are equipped with respectively suction tude and steam outlet pipe, the surface that described steam outlet pipe stretches into the part of described inner barrel offers exhaust port, thereby can pass through this three spaces and airflow hole, air-flow is sharply strengthened or dwindles to change by being discharged by outlet pipe, so repeatedly sudden change, make sound wave multiple reflections produce destructive interference, acoustic energy significantly reduces and exhaustion reaches noise elimination object, realize good erasure effect, and simple in structure, cost is low.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a silencing apparatus, is characterized in that, comprises cylindrical shell, and described cylindrical shell has inlet end and outlet side; In described cylindrical shell, be provided with two dividing plates, the outer rim of described dividing plate is connected with the inner wall sealing of described cylindrical shell, on described dividing plate, circumferentially offer a plurality of airflow holes, described dividing plate is separated into three the first space, second space and the 3rd spaces that volume is different by the inner space of described cylindrical shell, described inlet end and outlet side are equipped with respectively suction tude and steam outlet pipe, and the surface that described steam outlet pipe stretches into the part of described inner barrel offers exhaust port.
2. silencing apparatus according to claim 1, is characterized in that, described the first space, second space and bottom, the 3rd space are respectively equipped with outage.
3. silencing apparatus according to claim 2, it is characterized in that, described inlet end and outlet side are respectively equipped with air inlet end cap and the end cap of giving vent to anger, described air inlet end cap and outlet side cover and offer respectively air-flow inlet/outlet, and described suction tude and steam outlet pipe are connected on described inlet end and outlet side through described air-flow inlet/outlet respectively.
4. according to silencing apparatus described in claim 1 or 3, it is characterized in that, the inner wall surface of described cylindrical shell is provided with acoustical liner.
5. silencing apparatus according to claim 4, is characterized in that, described acoustical liner adopts glass fibre cotton.
6. according to silencing apparatus described in claim 4 or 5, it is characterized in that, the inner wall surface of described acoustical liner and described cylindrical shell is bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310641157.8A CN103603709A (en) | 2013-12-02 | 2013-12-02 | Silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310641157.8A CN103603709A (en) | 2013-12-02 | 2013-12-02 | Silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103603709A true CN103603709A (en) | 2014-02-26 |
Family
ID=50121960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310641157.8A Pending CN103603709A (en) | 2013-12-02 | 2013-12-02 | Silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103603709A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975924A (en) * | 2015-07-31 | 2015-10-14 | 云南大红山管道有限公司 | Widely-applied silencer |
| CN108316988A (en) * | 2018-03-19 | 2018-07-24 | 浙江师范大学 | A kind of active sound-absorbing muffler based on magnetorheological fluid piezoelectric material |
| CN108316987A (en) * | 2018-03-19 | 2018-07-24 | 浙江师范大学 | A kind of magnetorheological muffler of car combustion engine with piezo-electric generating function |
| CN108316989A (en) * | 2018-03-19 | 2018-07-24 | 浙江师范大学 | A kind of magnetorheological muffler of the automobile-used noise piezo-electric generating self energizing of motor |
| CN108320731A (en) * | 2018-03-19 | 2018-07-24 | 浙江师范大学 | A kind of muffler of automatic adjustment magnetorheological damping |
| CN108335691A (en) * | 2018-03-19 | 2018-07-27 | 浙江师范大学 | A kind of boiler exhaust muffler based on piezoelectricity magnetorheological fluid composite construction |
| CN108374806A (en) * | 2018-03-19 | 2018-08-07 | 浙江师范大学 | A kind of magnetorheological piezoelectricity active sound-absorbing muffler of mining blower |
| CN108374707A (en) * | 2018-03-19 | 2018-08-07 | 浙江师范大学 | A kind of magnetorheological muffler of automatic adjustment cavity |
| CN108425718A (en) * | 2018-03-19 | 2018-08-21 | 浙江师范大学 | A kind of magnetorheological active sound-absorbing muffler for automobile engine exhaust system |
| CN108533357A (en) * | 2018-03-19 | 2018-09-14 | 浙江师范大学 | A kind of hydraulic crawler excavator self energizing Active Absorption muffler |
| CN108547681A (en) * | 2018-03-19 | 2018-09-18 | 浙江师范大学 | A kind of magnetorheological muffler of self-regulated impedance for heavy truck internal combustion engine |
| CN108547682A (en) * | 2018-03-19 | 2018-09-18 | 浙江师范大学 | A kind of picking-up vehicle internal combustion engine magnetorheological fluid piezoelectricity muffler |
| CN108590809A (en) * | 2018-03-19 | 2018-09-28 | 浙江师范大学 | A kind of magnetorheological muffler of piezoelectricity for Ship turbine engine |
| CN109519253A (en) * | 2017-09-19 | 2019-03-26 | 王少平 | A kind of muffler |
| CN110500261A (en) * | 2019-07-26 | 2019-11-26 | 郑州精益达环保科技有限公司 | A kind of hydrogen fuel cell system exhaust silencer |
| CN111637622A (en) * | 2020-06-09 | 2020-09-08 | 苏州逸新和电子有限公司 | Silencer for air conditioning system |
-
2013
- 2013-12-02 CN CN201310641157.8A patent/CN103603709A/en active Pending
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975924A (en) * | 2015-07-31 | 2015-10-14 | 云南大红山管道有限公司 | Widely-applied silencer |
| CN109519253A (en) * | 2017-09-19 | 2019-03-26 | 王少平 | A kind of muffler |
| CN109519253B (en) * | 2017-09-19 | 2020-12-15 | 王少平 | Silencer |
| CN108533357B (en) * | 2018-03-19 | 2020-06-05 | 浙江师范大学 | Self-powered active sound absorption silencer for hydraulic excavator |
| CN108374806B (en) * | 2018-03-19 | 2020-05-22 | 浙江师范大学 | Magneto-rheological piezoelectric active sound-absorbing silencer of mining pressure fan |
| CN108335691A (en) * | 2018-03-19 | 2018-07-27 | 浙江师范大学 | A kind of boiler exhaust muffler based on piezoelectricity magnetorheological fluid composite construction |
| CN108374806A (en) * | 2018-03-19 | 2018-08-07 | 浙江师范大学 | A kind of magnetorheological piezoelectricity active sound-absorbing muffler of mining blower |
| CN108374707A (en) * | 2018-03-19 | 2018-08-07 | 浙江师范大学 | A kind of magnetorheological muffler of automatic adjustment cavity |
| CN108425718A (en) * | 2018-03-19 | 2018-08-21 | 浙江师范大学 | A kind of magnetorheological active sound-absorbing muffler for automobile engine exhaust system |
| CN108533357A (en) * | 2018-03-19 | 2018-09-14 | 浙江师范大学 | A kind of hydraulic crawler excavator self energizing Active Absorption muffler |
| CN108547681A (en) * | 2018-03-19 | 2018-09-18 | 浙江师范大学 | A kind of magnetorheological muffler of self-regulated impedance for heavy truck internal combustion engine |
| CN108547682A (en) * | 2018-03-19 | 2018-09-18 | 浙江师范大学 | A kind of picking-up vehicle internal combustion engine magnetorheological fluid piezoelectricity muffler |
| CN108590809A (en) * | 2018-03-19 | 2018-09-28 | 浙江师范大学 | A kind of magnetorheological muffler of piezoelectricity for Ship turbine engine |
| CN108316989A (en) * | 2018-03-19 | 2018-07-24 | 浙江师范大学 | A kind of magnetorheological muffler of the automobile-used noise piezo-electric generating self energizing of motor |
| CN108316988A (en) * | 2018-03-19 | 2018-07-24 | 浙江师范大学 | A kind of active sound-absorbing muffler based on magnetorheological fluid piezoelectric material |
| CN108547682B (en) * | 2018-03-19 | 2020-05-19 | 浙江师范大学 | Magnetorheological fluid piezoelectric muffler for internal combustion engine of pickup truck |
| CN108320731A (en) * | 2018-03-19 | 2018-07-24 | 浙江师范大学 | A kind of muffler of automatic adjustment magnetorheological damping |
| CN108316989B (en) * | 2018-03-19 | 2020-05-22 | 浙江师范大学 | Noise piezoelectric power generation self-powered magneto-rheological silencer for motorcycle |
| CN108547681B (en) * | 2018-03-19 | 2020-05-22 | 浙江师范大学 | Self-impedance-adjusting magneto-rheological silencer for internal combustion engine of heavy truck |
| CN108316987B (en) * | 2018-03-19 | 2020-05-22 | 浙江师范大学 | Magneto-rheological silencer with piezoelectric power generation function for automobile internal combustion engine |
| CN108316988B (en) * | 2018-03-19 | 2020-06-05 | 浙江师范大学 | Active sound-absorbing silencer based on magnetorheological fluid piezoelectric material |
| CN108316987A (en) * | 2018-03-19 | 2018-07-24 | 浙江师范大学 | A kind of magnetorheological muffler of car combustion engine with piezo-electric generating function |
| CN108590809B (en) * | 2018-03-19 | 2020-06-05 | 浙江师范大学 | Piezoelectric magneto-rheological silencer for ship turbine engine |
| CN108425718B (en) * | 2018-03-19 | 2020-06-05 | 浙江师范大学 | Magneto-rheological active sound-absorbing silencer for automobile engine exhaust system |
| CN108374707B (en) * | 2018-03-19 | 2020-06-30 | 浙江师范大学 | Magnetorheological exhaust silencer with automatically-adjusted cavity |
| CN108320731B (en) * | 2018-03-19 | 2020-09-01 | 浙江师范大学 | Exhaust silencer capable of automatically adjusting magnetorheological damping |
| CN108335691B (en) * | 2018-03-19 | 2020-09-29 | 浙江师范大学 | Boiler exhaust silencer based on piezoelectric magnetorheological fluid composite structure |
| CN110500261A (en) * | 2019-07-26 | 2019-11-26 | 郑州精益达环保科技有限公司 | A kind of hydrogen fuel cell system exhaust silencer |
| CN111637622A (en) * | 2020-06-09 | 2020-09-08 | 苏州逸新和电子有限公司 | Silencer for air conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140226 |