CN201554983U - Pipe type resistance ventilating silencer - Google Patents
Pipe type resistance ventilating silencer Download PDFInfo
- Publication number
- CN201554983U CN201554983U CN2009200746469U CN200920074646U CN201554983U CN 201554983 U CN201554983 U CN 201554983U CN 2009200746469 U CN2009200746469 U CN 2009200746469U CN 200920074646 U CN200920074646 U CN 200920074646U CN 201554983 U CN201554983 U CN 201554983U
- Authority
- CN
- China
- Prior art keywords
- aluminum fiber
- silencer
- sound absorption
- acoustic board
- guide plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Duct Arrangements (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a pipe type resistance ventilating silencer, a taper barrel is fixedly connected with a silencer shell through a flange, a supporting bar seat is fixedly on the middle section of the shell, one end of keels which are distributed for arrangement is fixed on the inner wall of the silencer shell, the other end is fixed with an aluminum fiber sound absorption plate, pressing strips which are separately arranged are used to press and fix the aluminum fiber sound absorption plate, a flow diverting plate is fixedly connected with the shell through the keels, the aluminum fiber sound absorption plate is pressed and fixed through the pressing strips on the crossed-shaped flow diverting plate surface, since the aluminum fiber is used as silencing materials, sound energy can be converted into heat energy to achieve the silencing effect, furthermore, the design is that a big air duct is divided into a plurality of silencing small air ducts, thereby solving the high frequency invalid problem and improving the sound absorption efficiency, the aluminum fiber sound absorption plate not only has better mechanical performance, but also has the advantages of fire resistance, water prevention and aging resistance. The silencing feature ratio is excellent, the structure is simple, the volume is small, the installation is convenient, the gas dynamitic noise generated by a fan is greatly lowered, and the silencer has extremely great popularization value.
Description
Technical field
The resistive air draft silencing apparatus of a kind of tubular type of the utility model, what relate to is the duct attenuation technical field, is applied to the noise elimination of exhaust duct and blower fan.
Background technique
Existing air draft silencing apparatus, its noise elimination is made sound-absorbing material with glass wool, rock wool or microperforated panel respectively with medium, owing to glass wool, rock wool are brittle substances, frangible, the glass wool that fractures, performance are extremely unstable, and rock wool can not wear out at occurring in nature, are difficult to again handle; If glass wool, rock wool fibers spread in the air, particularly when air draft, environment is caused severe contamination, human body skin, respiratory tract are damaged, be unfavorable for healthy.The caking if make moist then eliminates the noise and lost efficacy, and working life is short.Then, adopt microperforated panel to make silencing apparatus,,, cause sound absorption efficiency low because its frequency is narrow though it does not pollute the environment, the acoustic wave filter structure complexity of making, cost is very high, thereby seldom uses in engineering, is difficult to apply.
The model utility content
The purpose of this utility model is to overcome above-mentioned defective, uses aluminum fiber and makes muffler material, and it is effective, free from environmental pollution to design a kind of noise elimination, the resistive air draft silencing apparatus of a kind of tubular type that volume is little.Its technology is achieved in that the structure that comprises awl staving, flange, housing, keel, aluminum fiber acoustic board, strut socket, press strip, bent angle, guide plate; It is characterized in that: the awl staving is fixedlyed connected with suppressor case by flange, the suppressor case stage casing is fixed with strut socket, keel one end arranged evenly is fixed on the suppressor case inwall, the other end is aluminum fiber acoustic board fixedly, press strip spaced apart compresses and fixing aluminum fiber acoustic board, guide plate is fixedlyed connected with housing by keel, compressed by press strip on the face of guide plate and fixing aluminum fiber acoustic board, criss-cross guide plate forms four inwalls at the housing inner chamber and applies full and the fixing guide flow noise elimination passage of aluminum fiber acoustic board.The positive effect of implementing after this technology is: at first be to have overcome above-mentioned defective, owing to use aluminum fiber as muffler material, acoustic energy can be changed into the effect that heat energy reaches noise elimination, in addition, design is that wind trunk is separated into several little air channels of eliminating the noise, and has solved the high frequency Problem of Failure, has improved sound absorption efficiency, fundamentally solved glass wool, rock wool is caused severe contamination to air easily, exempted human body skin, respiratory tract are damaged; It is narrow to have solved the microperforated panel frequency again, and the defective that involves great expense by contrast, not only has the favorable mechanical performance with aluminum fiber, has fire prevention, waterproof, anti-aging again.The silencing apparatus of making, the acoustic characteristics cost performance is good, and basic, normal, high frequency sound is all had good sound absorption, and simple in structure, and volume is little, and is easy for installation, reduces the aerodynamic noise that blower fan produces greatly, has great promotional value.
Description of drawings
Fig. 1 is the utility model master TV structure schematic representation;
Fig. 2 is the utility model plan structure schematic representation;
Wherein, 1-awl staving, 2-flange, 3-housing, 4-keel, 5-aluminum fiber acoustic board, 6-strut socket, 7-press strip, 8-bent angle, 9-guide plate, 10-strut, 11-guide flow noise elimination passage;
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
See accompanying drawing 1,2, awl staving (1) is fixedlyed connected with housing (3) by flange (2), housing (3) stage casing is fixed with strut socket (6), keel (4) one ends arranged evenly are fixed on housing (3) inwall, the other end is aluminum fiber acoustic board (5) fixedly, press strip spaced apart (7) compresses and fixing aluminum fiber acoustic board (5), and guide plate (9) is fixedlyed connected with housing (3) by keel, is compressed by press strip (7) on the face of criss-cross guide plate (9) and fixing aluminum fiber acoustic board (5).
See accompanying drawing 1,2, awl staving (1) is fixedlyed connected with housing (3) by flange (2), and housing (3) stage casing is fixed with strut socket (6), and strut socket (6) connects strut (10), and strut (10) connection strut socket (6) and machine room be suppressor case (3) fixedly.Keel (4) one ends are fixed on housing (3) inwall, and keel arranged evenly (4) are aluminum fiber acoustic board (5) fixedly, and press strip spaced apart (7) compresses and fixing aluminum fiber acoustic board (5), and guide plate (9) is fixedlyed connected with housing (3) by keel; Fixedly connected by bent angle (8), form criss-cross guide plate (9), compress by press strip (7) on the face of guide plate (9) and fixing aluminum fiber acoustic board (5), make to form four inwalls in the housing (3) and apply full and the fixing guide flow noise elimination passage (11) of aluminum fiber acoustic board (5).
After blower fan is opened, behind awl staving (1), be exaggerated, during by guide plate (9), shunted, enter and form the deposited completely fixedly guide flow noise elimination passage (11) of aluminum fiber acoustic board (5) of four inwalls in the suppressor case (3), noise is absorbed by aluminum fiber acoustic board (5) in housing (3) altitude range, and the noise air-flow is when suppressor case (3) outlet discharging, sound deadening capacity reaches 26dB (A), thereby has reduced noise effectively.
Claims (2)
1. the resistive air draft silencing apparatus of tubular type comprises the structure of boring staving, flange, housing, keel, aluminum fiber acoustic board, strut socket, press strip, bent angle, guide plate; It is characterized in that: the awl staving is fixedlyed connected with suppressor case by flange, the suppressor case stage casing is fixed with strut socket, keel one end arranged evenly is fixed on the suppressor case inwall, the other end is aluminum fiber acoustic board fixedly, press strip spaced apart compresses and fixing aluminum fiber acoustic board, guide plate is fixedlyed connected with housing by keel, is compressed by press strip on the face of guide plate and fixing aluminum fiber acoustic board.
2. the resistive air draft silencing apparatus of a kind of tubular type according to claim 1 is characterized in that: criss-cross guide plate forms four inwalls at the housing inner chamber and applies full and the fixing guide flow noise elimination passage of aluminum fiber acoustic board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200746469U CN201554983U (en) | 2009-10-26 | 2009-10-26 | Pipe type resistance ventilating silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200746469U CN201554983U (en) | 2009-10-26 | 2009-10-26 | Pipe type resistance ventilating silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554983U true CN201554983U (en) | 2010-08-18 |
Family
ID=42614666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200746469U Expired - Fee Related CN201554983U (en) | 2009-10-26 | 2009-10-26 | Pipe type resistance ventilating silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554983U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016859A (en) * | 2012-12-06 | 2013-04-03 | 哈尔滨工程大学 | Shunting and silencing air pipe |
| CN105066415A (en) * | 2015-08-06 | 2015-11-18 | 荣成同方节能服务有限公司 | Special noise reduction device for air source unit |
| CN106409277A (en) * | 2016-12-07 | 2017-02-15 | 无锡优耐特净化装备有限公司 | Emptying silencer |
| CN108458169A (en) * | 2018-05-24 | 2018-08-28 | 浙江智海化工设备工程有限公司 | The device of flow perturbation is prevented in a kind of cryogenic gas pipeline |
| SE545204C2 (en) * | 2018-12-20 | 2023-05-16 | Fagergrens Konsult Ab | Radiation brake for protection against the spread of fire via ventilation ducts that connect different fire cells |
-
2009
- 2009-10-26 CN CN2009200746469U patent/CN201554983U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016859A (en) * | 2012-12-06 | 2013-04-03 | 哈尔滨工程大学 | Shunting and silencing air pipe |
| CN105066415A (en) * | 2015-08-06 | 2015-11-18 | 荣成同方节能服务有限公司 | Special noise reduction device for air source unit |
| CN105066415B (en) * | 2015-08-06 | 2017-09-26 | 荣成同方节能服务有限公司 | A kind of special denoising device of air-source unit |
| CN106409277A (en) * | 2016-12-07 | 2017-02-15 | 无锡优耐特净化装备有限公司 | Emptying silencer |
| CN108458169A (en) * | 2018-05-24 | 2018-08-28 | 浙江智海化工设备工程有限公司 | The device of flow perturbation is prevented in a kind of cryogenic gas pipeline |
| SE545204C2 (en) * | 2018-12-20 | 2023-05-16 | Fagergrens Konsult Ab | Radiation brake for protection against the spread of fire via ventilation ducts that connect different fire cells |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20121026 |