CN206397829U - A kind of high pressure positive blower muffler - Google Patents
A kind of high pressure positive blower muffler Download PDFInfo
- Publication number
- CN206397829U CN206397829U CN201621327788.8U CN201621327788U CN206397829U CN 206397829 U CN206397829 U CN 206397829U CN 201621327788 U CN201621327788 U CN 201621327788U CN 206397829 U CN206397829 U CN 206397829U
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- barrel
- porous
- outer barrel
- diffusion
- 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
Links
- 230000009467 reduction Effects 0.000 claims abstract description 83
- 238000009792 diffusion process Methods 0.000 claims abstract description 50
- 229920000742 Cotton Polymers 0.000 claims abstract description 20
- 239000003351 stiffener Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 abstract description 5
- 230000030279 gene silencing Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model provides center in a kind of high pressure positive blower muffler, one-level noise reduction outer barrel and is provided with one-level noise reduction porous plate inner cylinder, one-level noise reduction outer barrel and one-level noise reduction porous plate inner cylinder lower end connection air inlet；One-level noise reduction outer barrel top is connected in diffusing cone outer barrel, diffusing cone outer barrel provided with porous plate in diffusing cone；Diffusing cone outer barrel top, which is connected, is provided with connection gas outlet in porous tube top in porous tube in diffusion barrel, diffusion barrel and diffusion barrel in diffusion barrel, diffusion barrel；In diffusion barrel in porous tube and diffusing cone at porous plate inside center provided with two grades of noise reduction area porous tubes, two grades of noise reduction areas porous tube lower end is connected with one-level noise reduction porous plate inner cylinder upper end.The utility model is combined using the muffler of more than 3, and band centrum lifts ascending air；Top silencing cotton is provided with the porous tube outlet of two grades of noise reduction areas, impedance complex noise reduction is formed；Open gas outlet makes that ascending air flow velocity is low, and resistance is small, can reach good noise reduction, be hardly damaged, and should not block, easy installation and removal.
Description
Technical field
The utility model is related to muffling device technical field, more particularly to a kind of muffler for fan.
Background technology
At present, fan noise has a strong impact on the normal work study of people, and existing muffler for fan is all monomer, resistance
, it is anti-, also there is impedance complex, but erasure effect is not obvious, or it is perishable, maintenance cost is high, easily blocks, makes more than dust
It is poor with effect.
Utility model content
In order to solve the above mentioned problem that existing muffler for fan is present, the utility model uses impedance complex there is provided one kind
The high pressure positive blower muffler of multiple noise reduction.
The technical scheme that the utility model is used to achieve the above object is：A kind of high pressure positive blower muffler, one-level disappears
Center is provided with one-level noise reduction porous plate inner cylinder 3 in sound outer barrel 4, is set between one-level noise reduction outer barrel 4 and one-level noise reduction porous plate inner cylinder 3
There are acoustical cotton 5, one-level noise reduction outer barrel 4 and the lower end of one-level noise reduction porous plate inner cylinder 3 connection air inlet 15；On one-level noise reduction outer barrel 4
It is porous in diffusing cone outer barrel 9 and diffusing cone provided with porous plate 8 in diffusing cone in portion's connection diffusing cone outer barrel 9, diffusing cone outer barrel 9
Acoustical cotton 5 is provided between plate 8；The top of diffusing cone outer barrel 9 is connected in diffusion barrel 12, diffusion barrel 12 provided with porous tube in diffusion barrel
13, the top of porous tube 13 in acoustical cotton 5, diffusion barrel 12 and diffusion barrel, which is provided with, between porous tube 13 in diffusion barrel 12 and diffusion barrel connects
Pick out gas port 16；In diffusion barrel in porous tube 13 and diffusing cone at the inside center of porous plate 8 provided with two grades of noise reduction area porous tubes 7,
Two grades of lower ends of noise reduction area porous tube 7 are connected with the upper end of one-level noise reduction porous plate inner cylinder 3.
Water conservancy diversion gusset 10 is provided between the diffusion barrel 12 and the junction of diffusing cone outer barrel 9 and two grades of noise reduction area porous tubes 7.
The air inlet 15 connects one-level noise reduction outer barrel 4 and one-level noise reduction by inlet flange 1 and air inlet stiffener plate 2
Porous plate inner cylinder 3.
It is located at two grades of tops of noise reduction area porous tube 7 in the diffusion barrel in porous tube 13 and is provided with top acoustical cotton 14.
In the one-level noise reduction outer barrel 4, one-level noise reduction porous plate inner cylinder 3 and diffusing cone outer barrel 9, diffusing cone porous plate 8 it
Between connected by stiffener plate 17 and one or two grades of noise reduction area adpting flanges 6, pass through between the diffusing cone outer barrel 8 and diffusion barrel 12
Diffusing cone is connected with diffusion drum flange 11.
The gas outlet 16 is and uncovered structure of the porous tube in diffusion barrel 13 with diameter.
High pressure positive blower muffler of the present utility model, using the multiple noise reduction of impedance complex, the muffler combination of more than 3；
The formation of ascending air is lifted with centrum；Top silencing cotton is provided with the porous tube outlet of two grades of noise reduction areas, impedance complex is formed
Noise reduction；Gas outlet is to beat open design, makes that ascending air flow velocity is low, resistance is small, can reach good noise reduction, erasure effect
Substantially, it is hardly damaged, should not blocks, easy installation and removal.
Brief description of the drawings
Fig. 1 is the utility model high pressure positive blower muffler front view structure figure.
Fig. 2 is the A-A sectional structure charts of Fig. 1 high pressure positive blower mufflers.
In figure：1st, inlet flange, 2, air inlet stiffener plate, 3, one-level noise reduction porous plate inner cylinder, 4, one-level noise reduction outer barrel,
5th, acoustical cotton, 6, one or two grades of noise reduction area adpting flanges, 7, two grades of noise reduction area porous tubes, 8, porous plate in diffusing cone, 9, diffusing cone
Outer barrel, 10, water conservancy diversion gusset, 11, diffusing cone and diffusion drum flange, 12, diffusion barrel, 13, porous tube in diffusion barrel, 14, top inhales
Sound cotton, 15, air inlet, 16, gas outlet, 17, stiffener plate.
Embodiment
Fans silencer structure of the present utility model as depicted in figs. 1 and 2, a kind of high pressure positive blower muffler, one-level noise reduction
Center is provided with one-level noise reduction porous plate inner cylinder 3 in outer barrel 4, is provided between one-level noise reduction outer barrel 4 and one-level noise reduction porous plate inner cylinder 3
Acoustical cotton 5, one-level noise reduction outer barrel 4 and the lower end of one-level noise reduction porous plate inner cylinder 3 connection air inlet 15, air inlet 15 pass through entrance method
Orchid 1 and the connection one-level noise reduction of air inlet stiffener plate 2 outer barrel 4 and one-level noise reduction porous plate inner cylinder 3；The top of one-level noise reduction outer barrel 4
Connect and porous plate 8 in porous plate 8 in diffusing cone, diffusing cone outer barrel 9 and diffusing cone is provided with diffusing cone outer barrel 9, diffusing cone outer barrel 9
Between be provided with acoustical cotton 5, between diffusion barrel 12 and the junction of diffusing cone outer barrel 9 and two grades of noise reduction area porous tubes 7 be provided with fuisw rib
Plate 10；The top of diffusing cone outer barrel 9 is connected outside diffusion barrel 12, one-level noise reduction outer barrel 4, one-level noise reduction porous plate inner cylinder 3 and diffusing cone
Connected in cylinder 9, diffusing cone between porous plate 8 by stiffener plate 17 and one or two grades of noise reduction area adpting flanges 6；Set in diffusion barrel 12
Have and be provided with acoustical cotton 5, diffusion barrel 12 and diffusion barrel in porous tube 13 in diffusion barrel, diffusion barrel 12 and diffusion barrel between porous tube 13
The interior top of porous tube 13 connects gas outlet 16, and gas outlet 16 is and uncovered structure of the porous tube in diffusion barrel 13 with diameter；Diffusion
Provided with two grades of noise reduction area porous tubes 7, two grades of noise reduction area porous tubes at the inside center of porous plate 8 in the interior porous tube 13 of cylinder and diffusing cone
7 lower ends are connected with the upper end of one-level noise reduction porous plate inner cylinder 3, are located in diffusion barrel in porous tube 13 on two grades of noise reduction area porous tubes 7
Portion is provided with top acoustical cotton 14；It is connected between the diffusing cone outer barrel 8 and diffusion barrel 12 by diffusing cone with diffusion drum flange 11.
The utility model combines more than two mufflers together, i.e., do not increase resistance, the erasure effect played again,
High velocity air flows into from air inlet 15 and carries out preliminary noise reduction by one-level noise reduction porous plate inner cylinder 3, and principle is to be clipped in one-level noise reduction
The suction buffer gas flow reduction flow velocity of acoustical cotton 5 between porous plate inner cylinder 3 and one-level noise reduction outer barrel 4, can be reduced by this section
15 decibels of noise；Air-flow continues to rise into two grades of noise reduction area porous tubes 7, there is many on two grades of noise reduction area porous tubes 7
Splitting streams further reduce flow velocity noise reduction to aperture again, the air-flow being diverted from the aperture around two grades of noise reduction area porous tubes 7
Enter in diffusing cone porous 8 and 9 sections of diffusion reductions of speed of diffusing cone outer barrel, noise abatement, and to extending out in the presence of water conservancy diversion gusset 10
Scattered rotation rises through the hole in diffusion barrel on porous tube 13, and further deceleration, noise reduction are attracted by acoustical cotton 5；And disappear from two grades
The ascending air flowed out in sound area porous tube 7 produces viscosity resistance by top silencing cotton 14, is inhaled into, reduces flow velocity, subtracts
Noise is lacked；And top silencing cotton 14 is applied to the curve of fluidics, so through excessive from deceleration noise reduction, at gas outlet 16
Distinguished and admirable speed it is very low, reduce the friction with surrounding air, noise can be reduced, reached below normal range (NR)；And due to using
One or two grades of noise reduction area adpting flanges 6, diffusing cones are with spreading drum flange 11 so that equipment is for ease of maintenaince dismantled.
Claims (6)
1. a kind of high pressure positive blower muffler, it is characterised in that：One-level noise reduction outer barrel（4）Interior center is provided with one-level noise reduction porous plate
Cylinder（3）, one-level noise reduction outer barrel（4）With one-level noise reduction porous plate inner cylinder（3）Between be provided with acoustical cotton（5）, one-level noise reduction outer barrel（4）
With one-level noise reduction porous plate inner cylinder（3）Lower end connects air inlet（15）；One-level noise reduction outer barrel（4）Top connects diffusing cone outer barrel
（9）, diffusing cone outer barrel（9）It is interior to be provided with porous plate in diffusing cone（8）, diffusing cone outer barrel（9）With porous plate in diffusing cone（8）Between
Provided with acoustical cotton（5）；Diffusing cone outer barrel（9）Top connects diffusion barrel（12）, diffusion barrel（12）It is interior to be provided with porous tube in diffusion barrel
（13）, diffusion barrel（12）With porous tube in diffusion barrel（13）Between be provided with acoustical cotton（5）, diffusion barrel（12）With it is porous in diffusion barrel
Cylinder（13）Top connects gas outlet（16）；Porous tube in diffusion barrel（13）With porous plate in diffusing cone（8）It is provided with inside center
Two grades of noise reduction area porous tubes（7）, two grades of noise reduction area porous tubes（7）Lower end and one-level noise reduction porous plate inner cylinder（3）Upper end is connected.
2. a kind of high pressure positive blower muffler according to claim 1, it is characterised in that：The diffusion barrel（12）With diffusing cone
Outer barrel（9）Junction and two grades of noise reduction area porous tubes（7）Between be provided with water conservancy diversion gusset（10）.
3. a kind of high pressure positive blower muffler according to claim 1, it is characterised in that：The air inlet（15）Pass through entrance
Flange（1）With air inlet stiffener plate（2）Connect one-level noise reduction outer barrel（4）With one-level noise reduction porous plate inner cylinder（3）.
4. a kind of high pressure positive blower muffler according to claim 1, it is characterised in that：Porous tube in the diffusion barrel（13）
Inside it is located at two grades of noise reduction area porous tubes（7）Top is provided with top acoustical cotton（14）.
5. a kind of high pressure positive blower muffler according to claim 1, it is characterised in that：The one-level noise reduction outer barrel（4）, one
Level noise reduction porous plate inner cylinder（3）With diffusing cone outer barrel（9）, porous plate in diffusing cone（8）Between pass through stiffener plate（17）With one
Two grades of noise reduction area adpting flanges（6）Connection, the diffusing cone outer barrel（9）And diffusion barrel（12）Between pass through diffusing cone and diffusion barrel
Flange（11）Connection.
6. a kind of high pressure positive blower muffler according to claim 1, it is characterised in that：The gas outlet（16）For with diffusion
Porous tube in cylinder（13）With the uncovered structure of diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327788.8U CN206397829U (en) | 2016-12-06 | 2016-12-06 | A kind of high pressure positive blower muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327788.8U CN206397829U (en) | 2016-12-06 | 2016-12-06 | A kind of high pressure positive blower muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206397829U true CN206397829U (en) | 2017-08-11 |
Family
ID=59508546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621327788.8U Expired - Fee Related CN206397829U (en) | 2016-12-06 | 2016-12-06 | A kind of high pressure positive blower muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206397829U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382242A (en) * | 2016-12-06 | 2017-02-08 | 姚均甫 | High-pressure fan silencer |
| CN115095552A (en) * | 2022-07-21 | 2022-09-23 | 重庆开山流体机械有限公司 | A magnetic levitation centrifugal blower venting muffler |
| CN120042817A (en) * | 2025-03-31 | 2025-05-27 | 武汉顺风冷暖设备有限公司 | Energy-saving noise-reducing low-pressure fan |
-
2016
- 2016-12-06 CN CN201621327788.8U patent/CN206397829U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382242A (en) * | 2016-12-06 | 2017-02-08 | 姚均甫 | High-pressure fan silencer |
| CN115095552A (en) * | 2022-07-21 | 2022-09-23 | 重庆开山流体机械有限公司 | A magnetic levitation centrifugal blower venting muffler |
| CN120042817A (en) * | 2025-03-31 | 2025-05-27 | 武汉顺风冷暖设备有限公司 | Energy-saving noise-reducing low-pressure fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 |