CN207485744U - A kind of wind turbine streamline channel muffler - Google Patents
A kind of wind turbine streamline channel muffler Download PDFInfo
- Publication number
- CN207485744U CN207485744U CN201721430222.2U CN201721430222U CN207485744U CN 207485744 U CN207485744 U CN 207485744U CN 201721430222 U CN201721430222 U CN 201721430222U CN 207485744 U CN207485744 U CN 207485744U
- Authority
- CN
- China
- Prior art keywords
- outer barrel
- inner cylinder
- wind turbine
- inlet side
- acoustical panel
- 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
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- Hydraulic Turbines (AREA)
- Wind Motors (AREA)
Abstract
The utility model provides a kind of wind turbine streamline channel muffler, including outer barrel, inner cylinder and inlet side acoustical panel, the streamline channel of annulus sigmoid is formed between the inner wall of the outer barrel and the outer wall of inner cylinder, the inlet side acoustical panel is located at the side of the outer barrel and inner cylinder and is arranged at intervals with the side of the outer barrel and inner cylinder, and air inlet runner is formed between inlet side acoustical panel and the outer barrel and the side of inner cylinder；The outer barrel, inner cylinder and inlet side acoustical panel are interior to fill out glass fibre silencing cotton.A kind of wind turbine streamline channel muffler of the utility model, gas flow are streamlined, reduce windage, reduce energy consumption；Compared to straight barrel type runner, in the case where contour length is identical, practical flow channel length is increased, erasure effect is more obvious；Acoustical panel is increased in inlet side, air-flow is made to come in from circumferentia, greatly reduces the level of noise axially spread out of；It makes simply, easy for installation, connecting flange can directly be connect with wind turbine.
Description
Technical field
The utility model belongs to muffler technical field, and in particular to a kind of wind turbine streamline channel muffler.
Background technology
Wind turbine can generate noise during operating, these noises can influence the health of surrounding people and cause environment
Pollution.Noise caused by order to reduce wind turbine, it will usually install silencing means in the position of fan outlet.Common one kind
Silencing means is runner muffler, and common runner muffler is straight barrel type runner muffler, since air-flow is in straight barrel type runner
What is walked in muffler is straight line, and erasure effect is bad.
Utility model content
The purpose of this utility model is to overcome deficiencies of the prior art, provide a kind of wind turbine and are disappeared with streamline channel
Sound device.
In order to achieve the above object, the utility model is achieved through the following technical solutions：
A kind of wind turbine streamline channel muffler, which is characterized in that including outer barrel, inner cylinder and inlet side acoustical panel, institute
The streamline channel that annulus sigmoid is formed between the inner wall of outer barrel and the outer wall of inner cylinder is stated, the inlet side acoustical panel is located at institute
State the side of outer barrel and inner cylinder and be arranged at intervals with the side of the outer barrel and inner cylinder, inlet side acoustical panel with it is described outer
Air inlet runner is formed between cylinder and the side of inner cylinder；The outer barrel, inner cylinder and inlet side acoustical panel are interior to fill out glass fibre noise reduction
Cotton.
Preferred embodiment according to the present utility model, the outer wall of the outer barrel are connected for steel plate, and inner wall is punched-plate rivet
Connection；The outer wall of the inner cylinder is punched-plate rivet interlacement；The outer wall of the inlet side acoustical panel is connected for steel plate, and inner wall is punching
Orifice plate rivet interlacement.
Preferred embodiment according to the present utility model further includes the first connecting plate；The first connecting plate connection is described outer
Cylinder and inner cylinder.
Preferred embodiment according to the present utility model, the quantity of first connecting plate are at least four, the outer barrel and
First connecting plate of at least two even circumferentials distribution is respectively provided at left and right sides of inner cylinder.
Preferred embodiment according to the present utility model further includes the second connecting plate；The second connecting plate connection is described outer
Cylinder and inlet side acoustical panel.
Preferred embodiment according to the present utility model, the quantity at least two of second connecting plate, the outer barrel and
The circumference of inlet side acoustical panel is equipped at least two equally distributed second connecting plates.
Preferred embodiment according to the present utility model, further includes connecting flange；The connecting flange is connect with the outer barrel,
Positioned at the opposite side relative to the inlet side acoustical panel of the outer barrel.
Compared with prior art, a kind of wind turbine of the utility model streamline channel muffler has following beneficial to effect
Fruit：
(1) gas flow is streamlined, reduces windage, reduces energy consumption；
(2) compared to straight barrel type runner, in the case where contour length is identical, practical flow channel length, erasure effect are increased
It is more obvious；
(3) acoustical panel is increased in inlet side, air-flow is made to come in from circumferentia, greatly reduce the noise axially spread out of
Value；
(4) it makes simply, easy for installation, connecting flange can directly be connect with wind turbine.
Description of the drawings
Fig. 1 be the utility model is related to a kind of wind turbine streamline channel muffler elevational cross-sectional view.
Fig. 2 be the utility model is related to a kind of wind turbine streamline channel muffler left view.
Fig. 3-1 is the structure diagram of the wind turbine without muffler in Application Example.
Fig. 3-2 is the structure diagram of the wind turbine equipped with straight barrel type runner muffler in Application Example.
Fig. 3-3 is the structural representation of the wind turbine of the streamline channel muffler equipped with the utility model in Application Example
Figure.
Specific embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
Referring to Fig. 1-2, a kind of wind turbine streamline channel muffler of the utility model, including outer barrel 1, inner cylinder 2 and into
Wind side acoustical panel 3 forms the streamline channel 4 of annulus sigmoid between the inner wall of the outer barrel 1 and the outer wall of inner cylinder 2, described
Inlet side acoustical panel 3 is located at the side of the outer barrel 1 and inner cylinder 2 and is arranged at intervals with the side of the outer barrel 1 and inner cylinder 2, institute
State formation air inlet runner 5 between inlet side acoustical panel 3 and the side of the outer barrel 1 and inner cylinder 2；The outer barrel 1, inner cylinder 2 and into
Wind side acoustical panel 3 is interior to fill out glass fibre silencing cotton.
The outer wall of the outer barrel 1 is connected for steel plate, and inner wall is punched-plate rivet interlacement；The outer wall of the inner cylinder 2 is punching
Plate rivet interlacement；The outer wall of the inlet side acoustical panel 3 is connected for steel plate, and inner wall is punched-plate rivet interlacement.
A kind of wind turbine further includes the first connecting plate 6 with streamline channel muffler；First connecting plate 6 connects described outer
Cylinder 1 and inner cylinder 2.In one preferred embodiment of the utility model, the quantity of first connecting plate 6 is at least four, described
The left and right sides of outer barrel 1 and inner cylinder 2 is respectively provided with first connecting plate 6 of at least two even circumferentials distribution.The utility model
A preferred embodiment in, the quantity of first connecting plate 6 is eight, and the outer barrel 1 and inner cylinder 2 are each side set
There are four first connecting plates 6 of even circumferential distribution.
A kind of wind turbine further includes the second connecting plate 7 with streamline channel muffler；Second connecting plate 7 connects described outer
Cylinder 1 and inlet side acoustical panel 3.In one preferred embodiment of the utility model, the quantity of second connecting plate 7 is at least two
A, the circumference of the outer barrel 1 and inlet side acoustical panel 3 is equipped at least two equally distributed second connecting plates 7.This reality
With in a novel preferred embodiment, the quantity of second connecting plate 7 is four, the outer barrel 1 and inlet side acoustical panel 3
Circumference on set there are four equally distributed second connecting plate 7.
A kind of wind turbine further includes connecting flange 8 with streamline channel muffler；The connecting flange 8 connects with the outer barrel 1
It connects, positioned at the opposite side relative to the inlet side acoustical panel 3 of the outer barrel 1.
Arrow direction as shown in Figure 1, airflow direction flow to air inlet runner 5, according still further to b arrow directions from a arrow directions
It is flowed, finally from the outflow of c arrow directions in streamline channel 4.
Application Example：
Structure diagram for the wind turbine without muffler in Application Example as shown in figure 3-1.It is as shown in figure 3-2 application
The structure diagram of wind turbine equipped with straight barrel type runner muffler in embodiment.It is equipped with as Fig. 3-3 is shown in Application Example
The structure diagram of the wind turbine of the streamline channel muffler of the utility model.(with setting at A, A1 in Fig. 3-1,3-2,3-3
Standby 1 meter of interval) carry out noise test, the rotating speed of wind turbine is 2900rpm during test.Test result is as shown in table 1.
1 noise test result (unit of table：dB)
As shown in Table 1, common straight barrel type runner muffler is than wind turbine 10~15dB of noise reduction of no muffler, the utility model
Streamline channel muffler than no muffler 20~25dB of wind turbine noise reduction.Shown by data, the utility model it is streamlined
Runner muffler can substantially reduce fan noise.
Compared with prior art, a kind of wind turbine of the utility model streamline channel muffler has following beneficial to effect
Fruit：
(1) gas flow is streamlined, reduces windage, reduces energy consumption；
(2) compared to straight barrel type runner, in the case where contour length is identical, practical flow channel length, erasure effect are increased
It is more obvious；
(3) acoustical panel is increased in inlet side, air-flow is made to come in from circumferentia, greatly reduce the noise axially spread out of
Value；
(4) it makes simply, easy for installation, connecting flange can directly be connect with wind turbine.
Embodiment in the utility model is only used for illustrating the utility model, does not form to right
Limitation, other substantially equivalent replacements that those skilled in that art are contemplated that, in scope of protection of the utility model
It is interior.
Claims (7)
1. a kind of wind turbine streamline channel muffler, which is characterized in that described including outer barrel, inner cylinder and inlet side acoustical panel
The streamline channel of annulus sigmoid is formed between the inner wall of outer barrel and the outer wall of inner cylinder, the inlet side acoustical panel is located at described
It the side of outer barrel and inner cylinder and is arranged at intervals with the side of the outer barrel and inner cylinder, the inlet side acoustical panel and the outer barrel
Air inlet runner is formed between the side of inner cylinder；The outer barrel, inner cylinder and inlet side acoustical panel are interior to fill out glass fibre silencing cotton.
A kind of 2. wind turbine streamline channel muffler according to claim 1, which is characterized in that the outer wall of the outer barrel
It is connected for steel plate, inner wall is punched-plate rivet interlacement；The outer wall of the inner cylinder is punched-plate rivet interlacement；The inlet side noise reduction
The outer wall of plate is connected for steel plate, and inner wall is punched-plate rivet interlacement.
3. a kind of wind turbine streamline channel muffler according to claim 1, which is characterized in that further include the first connection
Plate；First connecting plate connects the outer barrel and inner cylinder.
A kind of 4. wind turbine streamline channel muffler according to claim 3, which is characterized in that first connecting plate
Quantity be at least four, be respectively provided at left and right sides of the outer barrel and inner cylinder at least two even circumferentials distribution described first
Connecting plate.
5. a kind of wind turbine streamline channel muffler according to claim 1, which is characterized in that further include the second connection
Plate；Second connecting plate connects the outer barrel and inlet side acoustical panel.
A kind of 6. wind turbine streamline channel muffler according to claim 5, which is characterized in that second connecting plate
Quantity at least two, the circumference of the outer barrel and inlet side acoustical panel is equipped at least two equally distributed described second
Connecting plate.
7. a kind of wind turbine streamline channel muffler according to claim 1, which is characterized in that further include connection method
It is blue；The connecting flange is connect with the outer barrel, positioned at the opposite side relative to the inlet side acoustical panel of the outer barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721430222.2U CN207485744U (en) | 2017-10-30 | 2017-10-30 | A kind of wind turbine streamline channel muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721430222.2U CN207485744U (en) | 2017-10-30 | 2017-10-30 | A kind of wind turbine streamline channel muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207485744U true CN207485744U (en) | 2018-06-12 |
Family
ID=62478554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721430222.2U Expired - Fee Related CN207485744U (en) | 2017-10-30 | 2017-10-30 | A kind of wind turbine streamline channel muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207485744U (en) |
-
2017
- 2017-10-30 CN CN201721430222.2U patent/CN207485744U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20181030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |