CN205895606U - High -efficient silencing device of multilayer - Google Patents
High -efficient silencing device of multilayer Download PDFInfo
- Publication number
- CN205895606U CN205895606U CN201620889582.8U CN201620889582U CN205895606U CN 205895606 U CN205895606 U CN 205895606U CN 201620889582 U CN201620889582 U CN 201620889582U CN 205895606 U CN205895606 U CN 205895606U
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- layer
- noise reduction
- air
- diameter
- cylinder
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- Expired - Fee Related
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- Exhaust Silencers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a high -efficient silencing device of multilayer, the novel nipple rectifier comprises a cylindrical shel, the one end of barrel is equipped with an air inlet section of thick bamboo and the other end is equipped with out the dryer, the entrance point diameter of an air inlet section of thick bamboo is less than diameter of drum, the exit end diameter that goes out the dryer is lighter than diameter of drum, the entrance point of an air inlet section of thick bamboo is equipped with air inlet sealing connection device, the exit end that goes out the dryer is equipped with air -out sealing connection device, be equipped with at least one deck noise damping layer on the barrel inner wall, each leave the space between the noise damping layer, noise damping layer with be equipped with strutting arrangement between the barrel. The utility model discloses simple structure, small, the air current is unobstructed and noise cancelling effect is good.
Description
Technical field
This utility model is related to noise reduction technology, more particularly, to a kind of multi-layer efficient silencing means.
Background technology
Deafener is a kind of device stoping sound transmission and allowing air-flow to pass through, and is the weight eliminating air power noise
Want measure.During use, deafener is arranged on air powered equipment such as aerator, air compressor machine, boiler exhaust mouth, electromotor, water pump etc.
On the device of reduction noise on the gas channel of the larger equipment of exhaust outlet noise or in inlet and exhaust system.Current noise reduction
Equipment good muffling effect have such problems as that complex structure, volume be big, air-flow pass through smooth；And structure is simple, small volume, air-flow
Unobstructed muffling device then has that erasure effect is poor.
Utility model content
Technical problem to be solved in the utility model is that a kind of structure of offer is simple, small volume, air-flow are unobstructed and disappear
The multi-layer efficient silencing means of sound excellent effect.
For solving above-mentioned technical problem, the technical solution of the utility model is: multi-layer efficient silencing means, including cylinder,
One end of described cylinder is provided with the other end into air duct and is provided with chimney fan, described enter air duct entrance point diameter be less than described cylinder
Diameter, the port of export diameter of described chimney fan is less than described barrel diameter, described enter air duct entrance point be provided with air intake sealing even
Connection device, the port of export of described chimney fan is provided with air-out sealing and connecting device, and described cylinder inboard wall is provided with least one of which noise reduction
Layer, leaves space between each described noise reduction layer, is provided with support meanss between described noise reduction layer and described cylinder.
As preferred technical scheme, described cylinder into the barrel chamber is disposed with acoustical panel.
As preferred technical scheme, described noise reduction layer is rock wool layer；Described acoustical panel is rock cotton board.
As preferred technical scheme, through hole is distributed with described acoustical panel, the two-port of described through hole is in bell mouth shape.
As preferred technical scheme, described air intake sealing and connecting device and air-out sealing and connecting device are respectively connection method
Blue.
As preferred technical scheme, described support meanss are some bracing rings that in described cylinder, arrangement is provided with, described
It is provided with support bar, described support bar sequentially passes through each described noise reduction layer between bracing ring and described cylinder.
Due to employing the multi-layer efficient silencing means of technique scheme, including cylinder, one end of described cylinder is provided with
Enter air duct and the other end is provided with chimney fan, described enter air duct entrance point diameter be less than described barrel diameter, described chimney fan
Port of export diameter be less than described barrel diameter, described enter air duct entrance point be provided with air intake sealing and connecting device, described chimney fan
The port of export be provided with air-out sealing and connecting device, described cylinder inboard wall is provided with least one of which noise reduction layer, each described noise reduction layer it
Between leave space, be provided with support meanss between described noise reduction layer and described cylinder.When this utility model uses, its work is similar to resistance
Property deafener, that is, when air-flow enter silencing means after, multilamellar noise reduction layer hinder under, acoustic energy rubs in the hole of multilamellar noise reduction layer
Wipe and change into thermal energy consumption and dissipate, make to weaken by the sound wave of acoustic filter, reach and reduce noise using multi-level noise reduction layer
The erasure effect of purpose, especially high frequency sound wave is obvious.This multi-layer efficient silencing means can be used for reducing Roots's series, axle stream system
The Induction and exhaust noises of row blower fan are it is also possible to be used for the noise reduction to discharge duct and other high pressure positive blower.
Brief description
The following drawings is only intended to, in this utility model is done with schematic illustration and explanation, not limit model of the present utility model
Enclose.Wherein:
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the structural representation of this utility model one embodiment.
In figure: 1- air intake sealing and connecting device；11- enters air duct；2- bracing ring；21- support bar；3- cylinder；4- air-out is close
Envelope attachment means；41- chimney fan；5- noise reduction layer；51- acoustical panel.
Specific embodiment
With reference to the accompanying drawings and examples, this utility model is expanded on further.In the following detailed description, only pass through to say
Bright mode describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art is permissible
Recognize, in the case of without departing from spirit and scope of the present utility model, can by with various different in the way of to described
Embodiment is modified.Therefore, accompanying drawing and description are inherently illustrative, rather than for limiting the protection of claim
Scope.
As shown in figure 1, multi-layer efficient silencing means, including cylinder 3, one end of described cylinder 3 is provided with another into air duct 11
One end is provided with chimney fan 41, described enter air duct 11 entrance point diameter be less than described cylinder 3 diameter, the outlet of described chimney fan 41
End diameter is less than described cylinder 3 diameter, and said structure can make air-flow have the flowing space of abundance in cylinder 3, is easy to air-flow
Flowing；Described enter air duct 11 entrance point be provided with air intake sealing and connecting device 1, the port of export of described chimney fan 41 is provided with air-out
Sealing and connecting device 4, described cylinder 3 inwall is provided with least one of which noise reduction layer 5, leaves space, institute between each described noise reduction layer 5
State and be provided with support meanss between noise reduction layer 5 and described cylinder 3.When this utility model uses, after air-flow enters silencing means,
Under multilamellar noise reduction layer 5 hinders, acoustic energy rubs in the hole of multilamellar noise reduction layer 5 and changes into thermal energy consumption and dissipate, and makes by eliminating the noise
The sound wave of device weakens, and reaches the purpose reducing noise using multi-level noise reduction layer 5, and the erasure effect of especially high frequency sound wave is bright
Aobvious.
As shown in Fig. 2 described cylinder 3 into the barrel chamber is disposed with acoustical panel 51, acoustical panel 51 can increase air-flow acoustic energy and disappear
The contact area of system for electrical teaching, increases the friction area of acoustic energy and silene system, improve acoustic energy change into heat energy efficiency so that this
The erasure effect of multi-layer efficient silencing means is more preferable.Through hole is distributed with described acoustical panel 51, the two-port of described through hole is in loudspeaker
Mouth shape, using the discordance of 51 liang of sidewinds of acoustical panel, so that the air-flow sound wave of acoustical panel 51 both sides is in through hole
Contact and offset some, beneficial to noise reduction.Described noise reduction layer 5 is rock wool layer；Described acoustical panel 51 is rock cotton board, and structure is simple,
It is easy to make, good muffling effect.
As depicted in figs. 1 and 2, described air intake sealing and connecting device 1 and air-out sealing and connecting device 4 are respectively connection method
Orchid, connects sealing convenient and reliable.Described support meanss are some bracing rings 2 that in described cylinder 3, arrangement is provided with, described bracing ring
It is provided with support bar 21 between 2 and described cylinder 3, described support bar 21 sequentially passes through each described noise reduction layer 5, install and support practicality side
Just.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have been shown and described above.One's own profession
The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model is also
Have various changes and modifications, these changes and improvements both fall within the range of claimed this utility model.This utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (6)
1. multi-layer efficient silencing means it is characterised in that: include cylinder, one end of described cylinder is provided with the other end into air duct and sets
Have a chimney fan, described enter air duct entrance point diameter be less than described barrel diameter, the port of export diameter of described chimney fan is less than institute
State barrel diameter, described enter air duct entrance point be provided with air intake sealing and connecting device, the port of export of described chimney fan is provided with air-out
Sealing and connecting device, described cylinder inboard wall is provided with least one of which noise reduction layer, leaves space between each described noise reduction layer, described disappears
It is provided with support meanss between sound-absorbing layer and described cylinder.
2. multi-layer efficient silencing means as claimed in claim 1 it is characterised in that: described cylinder into the barrel chamber is disposed with noise reduction
Plate.
3. multi-layer efficient silencing means as claimed in claim 2 it is characterised in that: described noise reduction layer be rock wool layer；Described disappear
Soundboard is rock cotton board.
4. multi-layer efficient silencing means as claimed in claim 2 it is characterised in that: through hole, institute are distributed with described acoustical panel
The two-port stating through hole is in bell mouth shape.
5. multi-layer efficient silencing means as claimed in claim 1 it is characterised in that: described air intake sealing and connecting device and air-out
Sealing and connecting device is respectively adpting flange.
6. the multi-layer efficient silencing means as described in claim 1,2,3,4 or 5 it is characterised in that: described support meanss are institute
State some bracing rings that arrangement is provided with cylinder, between described bracing ring and described cylinder, be provided with support bar, described support bar according to
Secondary through each described noise reduction layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620889582.8U CN205895606U (en) | 2016-08-16 | 2016-08-16 | High -efficient silencing device of multilayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620889582.8U CN205895606U (en) | 2016-08-16 | 2016-08-16 | High -efficient silencing device of multilayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205895606U true CN205895606U (en) | 2017-01-18 |
Family
ID=57778672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620889582.8U Expired - Fee Related CN205895606U (en) | 2016-08-16 | 2016-08-16 | High -efficient silencing device of multilayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205895606U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966263A (en) * | 2019-11-26 | 2020-04-07 | 重庆美的通用制冷设备有限公司 | Noise eliminator, noise eliminator assembly, axial flow fan and air conditioner |
| CN114320531A (en) * | 2020-09-30 | 2022-04-12 | 重庆隆鑫机车有限公司 | Exhaust silencer and all-terrain vehicle |
-
2016
- 2016-08-16 CN CN201620889582.8U patent/CN205895606U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966263A (en) * | 2019-11-26 | 2020-04-07 | 重庆美的通用制冷设备有限公司 | Noise eliminator, noise eliminator assembly, axial flow fan and air conditioner |
| CN110966263B (en) * | 2019-11-26 | 2022-01-25 | 重庆美的通用制冷设备有限公司 | Noise eliminator, noise eliminator assembly, axial flow fan and air conditioner |
| CN114320531A (en) * | 2020-09-30 | 2022-04-12 | 重庆隆鑫机车有限公司 | Exhaust silencer and all-terrain vehicle |
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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: 20170118 Termination date: 20170816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |