CN105864109B - A kind of axial flow blower air inlet silencer - Google Patents
A kind of axial flow blower air inlet silencer Download PDFInfo
- Publication number
- CN105864109B CN105864109B CN201510032947.5A CN201510032947A CN105864109B CN 105864109 B CN105864109 B CN 105864109B CN 201510032947 A CN201510032947 A CN 201510032947A CN 105864109 B CN105864109 B CN 105864109B
- Authority
- CN
- China
- Prior art keywords
- air inlet
- shell
- noise elimination
- axial flow
- flow blower
- 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
- Structures Of Non-Positive Displacement Pumps (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention provides a kind of axial flow blower air inlet silencer, overall structure is a cylinder, is connected with air inlet, including：Shell (1), flange (2), center silencing pot (3) and several noise elimination flow directing inserts (4)；The foreboard of the shell (1) is circle, and middle part is provided with circular hole, and the flange (2) is installed on circular hole, for the flanged joint with air inlet；The back plate of the shell (1) is round solid plate；It is uniformly provided with several rectangle air inlets in the cylindrical lateral wall of the shell (1)；The inside of the shell (1) forms a cavity, and in the cavity, shell (1) back plate is equipped with the silencing pot (3)；Several noise elimination flow directing inserts (4) are evenly distributed with around the silencing pot (3), the circumference of cambered surface and air inlet is tangent thereon, and the upper cambered surface of lower camber side and another adjacent noise elimination flow directing insert (4) constitutes air intake passage.
Description
Technical field
The present invention relates to muffler device field, more particularly to a kind of silencer of axial flow blower air inlet.
Background technology
In recent years, with the rapid development of social economy, noise pollution has attracted more and more attention from people.For a long time in noise
Higher industrial site work, will produce the symptoms such as auditory fatigue, headache, tinnitus, severe patient even loses hearing.Therefore industry
The noise abatement in place becomes more and more important.
Noise of axial flow fan is big at present, and wind speed is fast, and silencing scheme is few, generally entrance is used to add silencing apparatus, disappeared
There are the problems such as bulky, it is difficult to fix, and flow resistance is big, and noise reduction is difficult to reach requirement for acoustic device.
Invention content
It is fixed difficult it is an object of the invention to overcome volume existing for current axial flow blower air inlet silencer big, noise reduction
Effect is difficult to reach the defect of requirement, devises a kind of small, simple in structure, the significant axial flow blower air inlet of noise reduction
Mouth silencer.
To achieve the goals above, the present invention provides a kind of axial flow blower air inlet silencer, overall structures one
A cylinder, is connected with air inlet, including：Shell 1, flange 2, silencing pot 3 and several noise elimination flow directing inserts 4；The shell
The foreboard of body 1 is circle, and middle part is provided with circular hole, and the flange 2 is installed on circular hole, for connecting with the flange of air inlet
It connects；The back plate of the shell 1 is round solid plate；Be uniformly provided in the cylindrical lateral wall of the shell 1 several rectangles into
Air port；The inside of the shell 1 forms a cavity, and in the cavity, 1 back plate of the shell is equipped with the silencing pot 3；In cylinder
Fill noise elimination cotton；Several noise elimination flow directing inserts 4, the noise elimination flow directing insert 4 are evenly distributed with around the silencing pot 3
Material be perforated plate, the circumference of cambered surface and air inlet is tangent thereon, lower camber side and another adjacent noise elimination water conservancy diversion
The upper cambered surface of plug-in unit 4 constitutes air intake passage.
In above-mentioned technical proposal, formed between the upper cambered surface of the noise elimination flow directing insert 4, lower camber side and the shell 1 that is in contact
One cavity sets there are one plate 5 along the longitudinal direction of whole device, cavity is divided into two parts in the cavity, for increasing sound insulation
Effect reduces acoustic radiating；The plate 5 is solid slab；Filling sound absorption cotton 6 in the entire cavity of the noise elimination flow directing insert 4.
In above-mentioned technical proposal, the number of the noise elimination flow directing insert 4 is 10.
In above-mentioned technical proposal, the thickness of the sound absorption cotton 6 in several described noise elimination flow directing inserts 4 is gradually reduced, and is used for
Increase the width of sound sucting band.
In above-mentioned technical proposal, the axial height of the shell 1 is 500mm.
In above-mentioned technical proposal, the material of the shell 1 is high density sound insulating material, and sound insulation damping is pasted on inner surface
Plate, for increasing oise insulation factor.
In above-mentioned technical proposal, the area summation of all rectangle air inlets is more than institute in 1 cylindrical lateral wall of the shell
State air inlet diameter 2 times.
In above-mentioned technical proposal, the material of the flange 2 is high density sound insulating material.
In above-mentioned technical proposal, the half of a diameter of air inlet diameter of the silencing pot 3, material is perforation
Plate.
In above-mentioned technical proposal, 1 back plate inner wall of the shell is equipped with absorbent treatment, for directly absorbing wind turbine radiated noise.
The advantage of the invention is that：
1, silencer of the invention can effectively enter the wind wind turbine by the cooperation of noise elimination water conservancy diversion inserted sheet and center silencing pot
Mouth is eliminated the noise and is insulated against sound, and the radiation of noise is prevented；
2, noise elimination flow directing insert of the invention can increase silencing channel length, while inside plug-in unit while water conservancy diversion
The partition board of installation can effectively insulate against sound, and prevent sound to external radiation；And the streamlined structure of noise elimination flow directing insert can have
Effect reduces windage；
3, silencer of the invention has simple in structure, easy to process, noise reduction outstanding feature.
Description of the drawings
Fig. 1 is the structural schematic diagram of the air inlet silencer of the present invention；
Fig. 2 is the radial cross-section of the air inlet silencer of the present invention；
Fig. 3 is the axial sectional view of the air inlet silencer of the present invention.
Attached drawing identifies：
1, shell 2, flange 3, silencing pot
4, noise elimination flow directing insert 5, plate 6, sound absorption cotton
Specific implementation mode
The present invention is described further in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of axial flow blower air inlet silencer, overall structure is a cylinder, with air inlet
It is connected, including：Shell 1, flange 2, silencing pot 3 and several noise elimination flow directing inserts 4；The foreboard of the shell 1 is circle, middle part
It is provided with circular hole, the flange 2 is installed on circular hole, for the flanged joint with air inlet；The back plate of the shell 1 is circle
Shape solid plate；Several rectangle air inlets are uniformly provided in the cylindrical lateral wall of the shell 1；The inside shape of the shell 1
At a cavity, in the cavity, 1 back plate of the shell is equipped with the silencing pot 3；Noise elimination cotton is filled in cylinder；In the noise elimination
Be evenly distributed with several flow directing inserts 4 around cylinder 3, the material of the noise elimination flow directing insert 4 is perforated plate, thereon cambered surface with
The circumference of air inlet is tangent, and the upper cambered surface of lower camber side and another adjacent noise elimination flow directing insert 4 constitutes air intake passage.
As shown in Fig. 2, forming a chamber between the upper cambered surface of the noise elimination flow directing insert 4, lower camber side and the shell 1 that is in contact
Body sets there are one plate 5 along the longitudinal direction of whole device, cavity is divided into two parts, for increasing sound insulation effect, is subtracted in the cavity
Few acoustic radiating；The plate 5 is solid slab；Filling sound absorption cotton 6 in the entire cavity of the noise elimination flow directing insert 4.
Preferably, the number of the noise elimination flow directing insert 4 is 10.
The thickness of sound absorption cotton 6 in several described noise elimination flow directing inserts 4 is gradually reduced, for increasing sound sucting band
Width.
As shown in figure 3, the half of a diameter of air inlet diameter of the silencing pot 3, material is perforated plate.
Preferably, the axial height of the shell 1 is 500mm.
The material of the shell 1 is high density sound insulating material, sound insulation damping sheet is pasted on inner surface, for increasing sound insulation
Amount.
The area of all rectangle air inlets and more than the air inlet diameter in 1 cylindrical lateral wall of the shell
2 times.
The material of the flange 2 is high density sound insulating material.
1 back plate inner wall of the shell is equipped with absorbent treatment, for directly absorbing wind turbine radiated noise.
Claims (9)
1. a kind of axial flow blower air inlet silencer, overall structure is a cylinder, is connected with air inlet, including：Shell
Body (1), flange (2), center silencing pot (3) and several noise elimination flow directing inserts (4)；It is characterized in that, before the shell (1)
Plate is circle, and middle part is provided with circular hole, and the flange (2) is installed on circular hole, for the flanged joint with air inlet；It is described
The back plate of shell (1) is round solid plate；Several rectangles air inlet is uniformly provided in the cylindrical lateral wall of the shell (1)
Mouthful；The inside of the shell (1) forms a cavity, and in the cavity, shell (1) back plate is equipped with the silencing pot (3)；
Noise elimination cotton is filled in cylinder；Several noise elimination flow directing inserts (4), the noise elimination are evenly distributed with around the silencing pot (3)
The material of flow directing insert (4) is perforated plate, and the circumference of cambered surface and air inlet is tangent thereon, lower camber side with it is adjacent another
The upper cambered surface of a noise elimination flow directing insert (4) constitutes air intake passage；Upper cambered surface, lower camber side and the phase of the noise elimination flow directing insert (4)
A cavity is formed between the shell (1) of contact, is set in the cavity there are one plate (5) along the longitudinal direction of whole device, by cavity point
For two parts acoustic radiating is reduced for increasing sound insulation effect；The plate (5) is solid slab；The noise elimination flow directing insert
(4) filling sound absorption cotton (6) in entire cavity.
2. axial flow blower air inlet silencer according to claim 1, which is characterized in that the noise elimination flow directing insert (4)
Number be 10.
3. axial flow blower air inlet silencer according to claim 2, which is characterized in that several described noise elimination water conservancy diversion are inserted
The thickness of sound absorption cotton (6) in part (4) is gradually reduced, the width for increasing sound sucting band.
4. axial flow blower air inlet silencer according to claim 1, which is characterized in that the axial height of the shell (1)
Degree is 500mm.
5. axial flow blower air inlet silencer according to claim 1, which is characterized in that the material of the shell (1) is
High density sound insulating material pastes sound insulation damping sheet on inner surface, for increasing oise insulation factor.
6. axial flow blower air inlet silencer according to claim 1, which is characterized in that the cylindric side of the shell (1)
2 times of the area summation of all rectangle air inlets more than the air inlet diameter on wall.
7. axial flow blower air inlet silencer according to claim 1, which is characterized in that the material of the flange (2) is
High density sound insulating material.
8. axial flow blower air inlet silencer according to claim 1, which is characterized in that the diameter of the silencing pot (3)
For the half of the air inlet diameter, material is perforated plate.
9. axial flow blower air inlet silencer according to claim 1, which is characterized in that shell (1) the back plate inner wall
Equipped with absorbent treatment, for directly absorbing wind turbine radiated noise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032947.5A CN105864109B (en) | 2015-01-22 | 2015-01-22 | A kind of axial flow blower air inlet silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032947.5A CN105864109B (en) | 2015-01-22 | 2015-01-22 | A kind of axial flow blower air inlet silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105864109A CN105864109A (en) | 2016-08-17 |
| CN105864109B true CN105864109B (en) | 2018-08-07 |
Family
ID=56624029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510032947.5A Active CN105864109B (en) | 2015-01-22 | 2015-01-22 | A kind of axial flow blower air inlet silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105864109B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286533B (en) * | 2017-01-09 | 2020-06-16 | 中国科学院声学研究所 | Silencer for air inlet of axial flow fan |
| CN109404345A (en) * | 2018-12-18 | 2019-03-01 | 南京磁谷科技有限公司 | A kind of air inlet noise-reducing structure of magnetic suspension blower |
| CN109404318A (en) * | 2018-12-18 | 2019-03-01 | 南京磁谷科技有限公司 | A kind of magnetic suspension cfentrifugal blower cabinet |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379631Y (en) * | 1999-06-30 | 2000-05-24 | 常熟市鼓风机厂 | Disc like silencer of air-intaking of vantilation fan |
| CN2438937Y (en) * | 2000-03-23 | 2001-07-11 | 黄成新 | Multi-stage noise reducing apparatus of burner for fuel and gas combustion boiler |
| CN2695702Y (en) * | 2004-03-12 | 2005-04-27 | 江苏省交通科学研究院有限公司 | Silencer for axial fan |
| CN2736679Y (en) * | 2004-08-17 | 2005-10-26 | 张三明 | Sound-deadening ventilator |
| CN202187960U (en) * | 2011-07-15 | 2012-04-11 | 厦门市蓝天碧海环境工程有限公司 | Impedance acoustic streaming blower muffler |
| CN102780310A (en) * | 2012-08-15 | 2012-11-14 | 中电电机股份有限公司 | Noise reducing cover for air intake of motor cooler |
| CN203248402U (en) * | 2013-03-27 | 2013-10-23 | 史立新 | Cooling fan for diesel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01190997A (en) * | 1988-01-25 | 1989-08-01 | Hitachi Ltd | Blower device |
-
2015
- 2015-01-22 CN CN201510032947.5A patent/CN105864109B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379631Y (en) * | 1999-06-30 | 2000-05-24 | 常熟市鼓风机厂 | Disc like silencer of air-intaking of vantilation fan |
| CN2438937Y (en) * | 2000-03-23 | 2001-07-11 | 黄成新 | Multi-stage noise reducing apparatus of burner for fuel and gas combustion boiler |
| CN2695702Y (en) * | 2004-03-12 | 2005-04-27 | 江苏省交通科学研究院有限公司 | Silencer for axial fan |
| CN2736679Y (en) * | 2004-08-17 | 2005-10-26 | 张三明 | Sound-deadening ventilator |
| CN202187960U (en) * | 2011-07-15 | 2012-04-11 | 厦门市蓝天碧海环境工程有限公司 | Impedance acoustic streaming blower muffler |
| CN102780310A (en) * | 2012-08-15 | 2012-11-14 | 中电电机股份有限公司 | Noise reducing cover for air intake of motor cooler |
| CN203248402U (en) * | 2013-03-27 | 2013-10-23 | 史立新 | Cooling fan for diesel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105864109A (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105864109B (en) | A kind of axial flow blower air inlet silencer | |
| CN109882277A (en) | The exhaust load bearing component of exhaust system | |
| CN203532189U (en) | Low-noise variable frequency air conditioner compressor | |
| CN107120165A (en) | A kind of twin exhaust pipes silencer | |
| CN109185157B (en) | Muffler and compressor | |
| CN109340192B (en) | Fume exhaust fan | |
| CN208887110U (en) | A kind of high-speed flow nonstorage calorifier | |
| CN203257752U (en) | Centrifugal noise elimination draught fan shell | |
| CN207529653U (en) | A kind of muffler with air-flow buffer effect | |
| CN207989401U (en) | External impedance composite muffler in one kind | |
| CN203608004U (en) | Motor with noise reduction device | |
| CN206274011U (en) | A kind of low impulsive force muffler of microperforated panel | |
| CN108286533A (en) | A kind of axial flow blower air inlet silencer | |
| CN204267970U (en) | A kind of combined type huge discharge steam evacuation silencing apparatus | |
| CN203516222U (en) | Noise reduction device of centrifugal compressor | |
| CN207864881U (en) | A kind of high-efficient wide-frequency micropunch muffler pipe | |
| CN207673628U (en) | A kind of pipeline fan denoising device | |
| CN207513902U (en) | Air exhaust cooling device with noise elimination function | |
| CN205349661U (en) | Muffler and compressor of compressor | |
| CN201461035U (en) | Impedance compound exhaust muffler used for tractor | |
| CN206268700U (en) | Double-deck micropore muffler | |
| CN112309358A (en) | Silencing device and clothes treatment equipment | |
| CN105864108B (en) | A kind of air inlet silencer | |
| CN206458950U (en) | A kind of steam silencer | |
| CN202470088U (en) | Chimney silencer of gas-fired boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |