CN205717816U - Ducting system low-resistance height extinction coefficient plenum chamber - Google Patents
Ducting system low-resistance height extinction coefficient plenum chamber Download PDFInfo
- Publication number
- CN205717816U CN205717816U CN201620399214.5U CN201620399214U CN205717816U CN 205717816 U CN205717816 U CN 205717816U CN 201620399214 U CN201620399214 U CN 201620399214U CN 205717816 U CN205717816 U CN 205717816U
- Authority
- CN
- China
- Prior art keywords
- sound absorption
- casing
- extinction coefficient
- plenum chamber
- ducting system
- 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.)
- Active
Links
Landscapes
- Duct Arrangements (AREA)
- Pipe Accessories (AREA)
Abstract
The utility model discloses a kind of ducting system low-resistance height extinction coefficient plenum chamber, including one cube of hexahedron casing, this casing side is provided with entrance sleeve flange, and opposite side is provided with discharge connection flange；Being provided with at least two sound absorption flow deflector in described casing, described sound absorption flow deflector is curved, and near the sidewall of entrance sleeve flange in its one end connecting box body, the other end connects box house end face；In addition, on described box house, end face and bottom surface are provided with sound absorption structure.This utility model simple in construction, soundproof effect is good；Utilize the sound-absorbing porous material in the resistive sound absorption structure on Soundproofing static pressure box body to absorb acoustic energy, reduce noise.This utility model, because not reducing air-flow flow area, utilizes air channel corner to be arranged more, with special silencing equipment ratio, has the pressure loss little, the advantage of low cost.
Description
Technical field
This utility model relates to environmental protection noise reducing apparatus field, is specifically related to a kind of ducting system low-resistance height extinction coefficient plenum chamber.
Background technology
Along with industry and the developing rapidly of transportation, sound pollution has become as a kind of main environomental pollution source, and it not only affects the work of people, learns and have a rest, and jeopardizes the healthy of people, as sewage, atmospheric pollution, increasingly cause the attention of people.
Utility model content
For existing issue, the utility model discloses a kind of ducting system low-resistance height extinction coefficient plenum chamber, it is installed on ventilation shaft and can reside an air conditioning system air blow and return pipe end in control zone, can effectively reduce maintenance load.
The technical solution of the utility model is as follows:
A kind of ducting system low-resistance height extinction coefficient plenum chamber, including one cube of hexahedron casing, this casing side is provided with entrance sleeve flange, and opposite side is provided with discharge connection flange；Being provided with at least two sound absorption flow deflector in described casing, described sound absorption flow deflector is curved, and near the sidewall of entrance sleeve flange in its one end connecting box body, the other end connects box house end face；In addition, on described box house, end face and bottom surface are provided with sound absorption structure.
Preferably, described sound absorption flow deflector is made up of metal framework, perforated metal panel, glass cloth and superfine glass silk flosssilk wadding successively.
Preferably, described sound absorption structure is made up of perforated metal panel, glass cloth and superfine glass silk flosssilk wadding successively.
The utility model discloses a kind of ducting system low-resistance height extinction coefficient plenum chamber, its simple in construction, soundproof effect is good；Utilize the sound-absorbing porous material in the resistive sound absorption structure on Soundproofing static pressure box body to absorb acoustic energy, reduce noise.This utility model, because not reducing air-flow flow area, utilizes air channel corner to be arranged more, with special silencing equipment ratio, has the pressure loss little, the advantage of low cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, in describing embodiment below, the required accompanying drawing used is briefly described.
Fig. 1 is the front view of ducting system low-resistance height extinction coefficient plenum chamber provided by the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the sectional view of Fig. 1；
Fig. 4 is the sectional view of sound absorption flow deflector；
Fig. 5 is the sectional view of sound absorption structure.
In figure, numeral represents:
1, casing 2, entrance sleeve flange 3, discharge connection flange 4, sound absorption structure
5, sound absorption flow deflector 51, metal framework 52, perforated metal panel 53, glass cloth
54, superfine glass silk floss.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described.
Fig. 1 is to shown in 5, and a kind of ducting system low-resistance height extinction coefficient plenum chamber, including one cube of hexahedron casing 1, this casing 1 side is provided with entrance sleeve flange 2, and opposite side is provided with discharge connection flange 3；Being provided with at least two sound absorption flow deflector 5 in described casing 1, described sound absorption flow deflector 5 is curved, and near the sidewall of entrance sleeve flange 2 in its one end connecting box body 1, the other end connects casing 1 inside top surface；In addition, it is provided with sound absorption structure 4 around the internal upper end face of described casing 1 and bottom surface.
Sound absorption flow deflector 5 is made up of metal framework 51, perforated metal panel 52, glass cloth 53 and superfine glass silk flosssilk wadding 54 successively.
Described sound absorption structure 4 is made up of perforated metal panel 52, glass cloth 53 and superfine glass silk flosssilk wadding 54 successively.
Described sound absorption flow deflector 5 is arranged along airflow direction, and air-flow enters casing 1 by inlet connection flange, through the dilatation pressure letdown chamber of sound absorption structure 4, after sound absorption flow deflector 5 water conservancy diversion sound absorption, is flowed out by discharge connection flange 2, reaches the purpose eliminated the noise.
The utility model discloses a kind of ducting system low-resistance height extinction coefficient plenum chamber, its simple in construction, soundproof effect is good；Utilize the sound-absorbing porous material in the resistive sound absorption structure 4 on Soundproofing static pressure box body 1 to absorb acoustic energy, reduce noise.This utility model, because not reducing air-flow flow area, utilizes air channel corner to be arranged more, with special silencing equipment ratio, has the pressure loss little, the advantage of low cost.
In addition to the implementation, this utility model can also have other embodiments, such as one layer or the sound absorption structure etc. of the micro-punched-plate of two-layer；The technical scheme that all employing equivalents or equivalent transformation are formed, all falls within the protection domain of this utility model requirement.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.
Claims (3)
1. a ducting system low-resistance height extinction coefficient plenum chamber, it is characterised in that include a cube six
Face body casing, this casing side is provided with entrance sleeve flange, and opposite side is provided with discharge connection flange；Institute
Being provided with at least two sound absorption flow deflector in stating casing, described sound absorption flow deflector is curved, and its one end connects
Near the sidewall of entrance sleeve flange in casing, the other end connects box house end face；In addition,
On described box house, end face and bottom surface are provided with sound absorption structure.
Ducting system low-resistance height extinction coefficient plenum chamber the most according to claim 1, its feature
Being, described sound absorption flow deflector is successively by metal framework, perforated metal panel, glass cloth and ultra-fine glass
Glass silk flosssilk wadding forms.
Ducting system low-resistance height extinction coefficient plenum chamber the most according to claim 1, its feature exists
In, described sound absorption structure is made up of perforated metal panel, glass cloth and superfine glass silk flosssilk wadding successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620399214.5U CN205717816U (en) | 2016-05-05 | 2016-05-05 | Ducting system low-resistance height extinction coefficient plenum chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620399214.5U CN205717816U (en) | 2016-05-05 | 2016-05-05 | Ducting system low-resistance height extinction coefficient plenum chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205717816U true CN205717816U (en) | 2016-11-23 |
Family
ID=57303338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620399214.5U Active CN205717816U (en) | 2016-05-05 | 2016-05-05 | Ducting system low-resistance height extinction coefficient plenum chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205717816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234424A (en) * | 2021-10-14 | 2022-03-25 | 安徽省建筑设计研究总院股份有限公司 | Air pipe static pressure box with variable arc guide vanes based on dissipation analysis |
-
2016
- 2016-05-05 CN CN201620399214.5U patent/CN205717816U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234424A (en) * | 2021-10-14 | 2022-03-25 | 安徽省建筑设计研究总院股份有限公司 | Air pipe static pressure box with variable arc guide vanes based on dissipation analysis |
| CN114234424B (en) * | 2021-10-14 | 2023-05-12 | 安徽省建筑设计研究总院股份有限公司 | Wind pipe static pressure box with arc-change guide vane based on dissipation analysis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205717816U (en) | Ducting system low-resistance height extinction coefficient plenum chamber | |
| CN106123241A (en) | A kind of city indoor substation transformer chamber ventilation noise reduction system | |
| CN204210724U (en) | Watercraft engine room ventilation assembly | |
| CN202040956U (en) | Noise damping device in air duct of central air conditioner | |
| CN204270651U (en) | A kind of high-temperature high-speed airflow fountain wet method diffusing muffler | |
| CN203489449U (en) | Silencing structure of air conditioner and air conditioner | |
| CN106253105A (en) | A kind of transformer station's green exhaust system with noise reduction and function of smoking alarm | |
| CN207230743U (en) | A kind of central air-conditioning air exhausting structure of low noise | |
| CN104422111A (en) | Silencing structure of air conditioner and air conditioner | |
| CN203730415U (en) | Blower tapered diffuser silencer | |
| CN203052948U (en) | Silencing plenum chamber | |
| CN205897172U (en) | Device of making an uproar falls in flue with water conservancy diversion function | |
| CN205825348U (en) | A kind of city indoor substation transformer chamber ventilation noise reduction system | |
| CN205878469U (en) | Noise level reaches NC35's environmental protection and energy saving air supply system | |
| CN205224323U (en) | Light -duty sound composite sheet of inhaling | |
| CN207064950U (en) | A kind of Novel muffler for exhaust outlet | |
| CN203041422U (en) | Air supplying seat | |
| CN203232692U (en) | Sound absorption and insulation cover | |
| CN103126371B (en) | A kind of air-supply seat | |
| CN203349448U (en) | Incremental type strong wind outlet mechanism | |
| CN208293721U (en) | A kind of noise reduction multi-functional sewer pipe | |
| CN206801389U (en) | One kind ventilation sound arrester | |
| CN107664319A (en) | Silence type air cleaner | |
| CN206068116U (en) | Marine air conditioner device | |
| CN204421262U (en) | Indoor ventilator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |