CN203068747U - Sound attenuation air duct - Google Patents

Sound attenuation air duct Download PDF

Info

Publication number
CN203068747U
CN203068747U CN 201220753192 CN201220753192U CN203068747U CN 203068747 U CN203068747 U CN 203068747U CN 201220753192 CN201220753192 CN 201220753192 CN 201220753192 U CN201220753192 U CN 201220753192U CN 203068747 U CN203068747 U CN 203068747U
Authority
CN
China
Prior art keywords
outer shell
sound attenuation
shell
air duct
noise
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
Application number
CN 201220753192
Other languages
Chinese (zh)
Inventor
周进坤
Original Assignee
周进坤
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 周进坤 filed Critical 周进坤
Priority to CN 201220753192 priority Critical patent/CN203068747U/en
Application granted granted Critical
Publication of CN203068747U publication Critical patent/CN203068747U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a sound attenuation air duct which comprises an outer shell, wherein the outer shell is composed of a straight-line section and a circular arc section, wherein one end portion of the circular arc section is bended, a fibre sound absorbing material layer is arranged on the inner wall of the outer shell, a partition plate is arranged inside the outer shell, the outer shell is divided into two channels by the partition plate, sound attenuation pieces are arranged inside the straight-line sections of the two channels, and a flange is arranged on one end portion which is away from the circular arc section on the outer shell. The sound attenuation air duct is novel in design and convenient to install. The mode of bended pipes is adopted, so the sound attenuation air duct is convenient to install against a wall, stable and reliable and capable of avoiding noise straight-line transmission. The partition plate is arranged inside the outer shell, so that the noise can be divided into two flows, the noise is reduced. The flange is arranged on the outer shell, so that the sound attenuation air duct is convenient to install and fix and capable of improving efficiency. The fibre sound absorbing material layer and the sound attenuation pieces are arranged inside the outer shell, so that the sound attenuation air duct has the function of sound absorbing and good in use effect.

Description

A kind of noise elimination airduct
Technical field
The utility model relates to a kind of silencing apparatus, particularly a kind of noise elimination airduct.
Background technology
At present, for the ease of realizing the interior separate ventilation of machine room, generally all adopt at exterior wall and open air vent and blower fan is installed is carried out forced ventilation, but behind the installation blower fan, other noise in fan noise and the machine room will be by air vent to external radiation, external environment is caused noise pollution, also do not have a equipment of eliminating the noise at this noise like specially to occur on the existing market, though some large-scale silencers are arranged because its complex structure makes cost very high, the noise elimination effect is not good yet, and can not well install, stable inadequately after the installation, drop easily, the ventilating opening of existing silencer size is fixing in addition, can not set according to the size in on-the-spot air port, versatility is not strong, therefore, existing silencer can not adapt to people's needs, is badly in need of improving.
The utility model content
The purpose of this utility model just is a kind of modern design is provided, and volume is less, can reduce or eliminate a kind of noise elimination airduct of noise pollution, can effectively solve the problem of above-mentioned existence.
To achieve these goals, the technical solution adopted in the utility model is such: noise elimination airduct of the present utility model, comprise shell, described shell is made of the arc section of straightway and the end bending of one end, outer casing inner wall is provided with the fiber sound-absorbing material layer, is provided with dividing plate in the shell, and dividing plate will be divided into two passages in the shell, be equipped with anechoic sheet in the straightway of two passages, the end away from arc section on the shell is provided with flange.
As preferably, be provided with filter screen in the described shell, filter screen is near flange.
As preferably, the cross section of described shell is circle or rectangle.
Compared with prior art, advantage of the present utility model is: the utility model modern design, and easy for installation, adopt the form of bend pipe, be convenient to install by wall, reliable and stable, and can avoid the noise direct projection, be provided with dividing plate in the shell, can make the noise shunting, reduce noise, shell is provided with flange, be convenient to install and fix, raise the efficiency, be provided with fiber sound-absorbing material layer and bloop in the shell, have sound absorption, result of use is good, be provided with filter screen, avoid mosquito to enter, the cross section of shell is circle or rectangle, be convenient to decide according to actual conditions highly versatile.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, noise elimination airduct of the present utility model comprises shell 1, and described shell 1 is made of the arc section of straightway and the end bending of one end, shell 1 inwall is provided with fiber sound-absorbing material layer 3, be provided with dividing plate 4 in the shell 1, dividing plate 4 is equipped with anechoic sheet 5 with being divided into two passages in the shell 1 in the straightway of two passages, end away from arc section on the shell 1 is provided with flange 2, be provided with filter screen 6 in the described shell 1, filter screen 6 is near flange 2, and the cross section of described shell 1 is circle or rectangle.
During installation, shell 1 is installed by wall, by flange 2 shell 1 and blower fan are fixed then, easy for installation, be provided with dividing plate 4 in the shell 1, can make the noise shunting, reduce noise, be provided with fiber sound-absorbing material layer 3 and bloop 5 in the shell 1, all have sound absorption, acoustically effective is good, be provided with filter screen 6, avoid mosquito to enter, the cross section of shell 1 is circle or rectangle, be convenient to decide according to actual conditions highly versatile.The utility model is applicable to for blowing system, eliminates the noise that building pumping, ventilation machine produces, and the scope of application is wide.

Claims (3)

1. noise elimination airduct, comprise shell, it is characterized in that: described shell is made of the arc section of straightway and the end bending of one end, outer casing inner wall is provided with the fiber sound-absorbing material layer, be provided with dividing plate in the shell, dividing plate is equipped with anechoic sheet with being divided into two passages in the shell in the straightway of two passages, and the end away from arc section on the shell is provided with flange.
2. a kind of noise elimination airduct according to claim 1 is characterized in that: be provided with filter screen in the described shell, the close flange of filter screen.
3. a kind of noise elimination airduct according to claim 1, it is characterized in that: the cross section of described shell is circle or rectangle.
CN 201220753192 2012-12-05 2012-12-05 Sound attenuation air duct Expired - Fee Related CN203068747U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220753192 CN203068747U (en) 2012-12-05 2012-12-05 Sound attenuation air duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220753192 CN203068747U (en) 2012-12-05 2012-12-05 Sound attenuation air duct

Publications (1)

Publication Number Publication Date
CN203068747U true CN203068747U (en) 2013-07-17

Family

ID=48767526

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220753192 Expired - Fee Related CN203068747U (en) 2012-12-05 2012-12-05 Sound attenuation air duct

Country Status (1)

Country Link
CN (1) CN203068747U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105889690A (en) * 2016-06-01 2016-08-24 四川五环石化装备有限公司 Bent noise lowering device
CN106051999A (en) * 2016-06-08 2016-10-26 珠海格力电器股份有限公司 Exhaust hood and mounting structure of air-cooled outdoor unit
CN113383648A (en) * 2021-06-09 2021-09-14 洛阳师范学院 Ventilation pipe for sweet potato cellar

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105889690A (en) * 2016-06-01 2016-08-24 四川五环石化装备有限公司 Bent noise lowering device
CN106051999A (en) * 2016-06-08 2016-10-26 珠海格力电器股份有限公司 Exhaust hood and mounting structure of air-cooled outdoor unit
CN113383648A (en) * 2021-06-09 2021-09-14 洛阳师范学院 Ventilation pipe for sweet potato cellar
CN113383648B (en) * 2021-06-09 2022-06-28 洛阳师范学院 Ventilation pipe for sweet potato cellar

Similar Documents

Publication Publication Date Title
CN203160760U (en) Noise abatement machine room
CN204626680U (en) Generator room noise eliminating silencer
CN203068747U (en) Sound attenuation air duct
CN201650452U (en) Silencing device of diesel generating set
WO2016054947A1 (en) Vacuum cleaner
CN202493456U (en) Jet flow type induced ventilator
CN205383734U (en) Low noise new trend and exhaust system and acoustics room that has this system
CN205118559U (en) Wide band journey silencer
CN203010043U (en) Silencing pipe
CN203797910U (en) Anechoic bend
CN104165255B (en) A kind of air pipeline active-passive composite silencing apparatus
CN202040956U (en) Noise damping device in air duct of central air conditioner
CN203489449U (en) Noise reduction structure of air conditioner and air conditioner
CN203586511U (en) Silencing structure of air-conditioner and air-conditioner
CN204041567U (en) A kind of quick-mounting formula water pump sound arrester
CN203730415U (en) Blower tapered diffuser silencer
CN104422111A (en) Silencing structure for air conditioner and air conditioner
CN201723907U (en) Bent-tube silencer
CN104165256B (en) A kind of active silencer for air pipeline system
CN207064950U (en) A kind of Novel muffler for exhaust outlet
CN110821545A (en) Self-silencing axial flow fan ventilation system for tunnel
CN104805920A (en) Noise elimination device for generator room
CN104456905A (en) Silencing structure of air conditioner and air conditioner
CN104110306B (en) Mute power station shell
CN201531980U (en) Sound-deadening insulation ventilation opening

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: 20130717

Termination date: 20131205