CN108386384A - A kind of axial flow blower of axial-flow windwheel and its application - Google Patents
A kind of axial flow blower of axial-flow windwheel and its application Download PDFInfo
- Publication number
- CN108386384A CN108386384A CN201810147473.2A CN201810147473A CN108386384A CN 108386384 A CN108386384 A CN 108386384A CN 201810147473 A CN201810147473 A CN 201810147473A CN 108386384 A CN108386384 A CN 108386384A
- Authority
- CN
- China
- Prior art keywords
- axial
- flow
- flow windwheel
- trailing edge
- outer rim
- 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.)
- Pending
Links
- 230000000694 effects Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of axial-flow windwheel and the axial flow blowers of its application, the axial-flow windwheel, including wheel hub and several blades, the blade includes pressure face and suction surface, pressure face and suction surface are surrounded by blade root, outer rim, leading edge and trailing edge, the blade root connect with the wheel hub, it is characterised in that：The blade has outwardly protruded an empennage in the trailing edge, and the empennage is positioned close at the outer rim.Empennage makes the trailing edge due to being divided into two-stage, the vortex that air-flow is generated when trailing edge falls off forms phase difference with the vortex that air-flow is generated when empennage falls off, the vortex refinement and rectification generated when falling off, air-flow more can smooth sequential fall off, to reduce noise and promote wind turbine efficiency.
Description
Technical field：
The present invention relates to a kind of axial-flow windwheel and the axial flow blowers of its application.
Background technology：
Existing axial-flow windwheel includes wheel hub and several blades, and the blade includes pressure face and suction surface, pressure face and suction
Power face is surrounded by blade root, outer rim, leading edge and trailing edge, and the blade root connect with the wheel hub.Usual trailing edge is for circular arc or directly
The pressure face air velocity of line continuous structure, blade is high, and suction surface air velocity is low, and the difference of the two flow velocity causes jet stream tail
Mark, this tail falls off in process trailing edge will produce the apparent vortex that falls off, and existing structure is more gentle due to trailing edge structures
Or linear continuous structure, the vortex that largely falls off is generated when falling off under same time step by the air-flow of trailing edge, and block
Outlet flow.It is increased so as to cause noise, efficiency declines.
On the other hand existing blade is made of multiple botanical origins at present, and the leaf grating of fan blade plays the efficiency and noise of fan blade
Vital effect, closer to outer rim, peripheral speed is higher, and proportion of the leaf grating to made by complete machine is also bigger, existing leaf
Often closer to outer rim, its leaf grating length is longer for chip architecture.But since outer rim can have a large amount of air-flow separation, and air-flow detaches
Influenced by axial-flow windwheel characteristic it is substantially inevitable, with separation bubble by pressure pulsations affect to perimeter, will certainly
The flow direction for influencing normal airflow deteriorates so as to cause fan performance.
Invention content：
The object of the present invention is to provide a kind of axial-flow windwheel and the axial flow blower of its application, it is avoided that air-flow is de- in trailing edge
Fall behind and generate the vortex that falls off, causes the problem that noise is big, efficiency is low.
The purpose of the present invention is what is be achieved by following technical proposals.
The first purpose of the invention is to provide a kind of axial-flow windwheels, including wheel hub and several blades, the blade to include
Pressure face and suction surface, pressure face and suction surface are surrounded by blade root, outer rim, leading edge and trailing edge, the blade root and the wheel
Hub connects, it is characterised in that：The blade has outwardly protruded an empennage in the trailing edge, and the empennage is positioned close to described outer
At edge.
It is above-mentioned from blade root to outer rim direction, the empennage in the trailing edge is outwardly protruded and to be formed initial line and terminate side, institute
It states termination side with the outer rim to intersect, described initial line and the crosspoint A2 for terminating side, the blade is in the crosspoint
Leaf grating length L2 and the leaf grating length L1 of the outer rim at A2 meet：L1≤L2≤1.2L1.
Termination side described above and the outer rim crosspoint A3, the line of the hub centre O and the crosspoint A3
OA3, line OA3 meet with the angle γ for terminating side:5°≤γ≤80°.
The center O of wheel hub described above orthographic projection regard on vertical view to blade outer rim distance as impeller outer diameter R, institute
It has stated initial line and has been crossed to form starting point A1 with the trailing edge, the distance OA1 of center O to starting point A1 meets：0.8R≤OA1≤
0.9R。
The distance OA2 of described above initial line and the crosspoint A2 to center O for terminating side meet：0.85R≤OA2≤
0.95R。
Described above initial line meets with the angle α for terminating side:80°≤α≤160°.
The angle β of trailing edge described above and described initial line meets:90°≤β≤110°.
Angle α and angle β described above is fillet.
The shape of empennage described above is in orthographic projection depending on being triangle or arrowhead form on vertical view.
Second object of the present invention is to provide a kind of axial flow blower, including motor and the axis stream wind on motor
Wheel, it is characterised in that：The axial-flow windwheel is axial-flow windwheel described above.
Compared with prior art, the present invention having the following effects that：
1) axial-flow windwheel, the blade have outwardly protruded an empennage in the trailing edge, and empennage makes the trailing edge be divided into
Two-stage, the vortex that air-flow is generated when trailing edge falls off form phase difference with the vortex that air-flow is generated when empennage falls off, de-
The vortex refinement and rectification generated when falling, air-flow more can smooth sequential fall off, to reduce noise and promote wind turbine efficiency；
2) efficiency and noise of fan blade are played a crucial role due to blade cascade, closer to wind point, leaf grating pair
Proportion made by complete machine is also bigger, and the empennage is positioned close at the outer rim, the good separating effect of air-flow；
3) empennage is arranged for triangle, leaf grating length L2 of the blade at the crosspoint A2 and the outer rim
Leaf grating length L1 meet：L1≤L2≤1.2L1, tail structure is simple, excellent noise reduction effect；
4) initial line that rises is crossed to form starting point A1 with the trailing edge, and the distance OA1 of center O to starting point A1 meets：
0.8R≤OA1≤0.9R, the distance OA2 for playing initial line and the crosspoint A2 to center O for terminating side meet：0.85R≤OA2≤
0.95R can be isolated separation bubble with normal airflow to greatest extent, and normal airflow steadily falls off to improve from blade
The flowing velocity of fan blade air-flow reduces noise and promotes the efficiency of fan blade.
5) shape of empennage is in orthographic projection depending on being triangle or arrowhead form on vertical view, and simple in structure, manufacture is easy, can
More preferably to reduce noise and promote wind turbine efficiency.
Description of the drawings：
Fig. 1 is the stereogram for the axial-flow windwheel that the embodiment of the present invention one provides；
Fig. 2 is the vertical view for the axial-flow windwheel that the embodiment of the present invention one provides；
Fig. 3 is enlarged drawing at the B of Fig. 2；
Fig. 4 is the stereogram of the axial-flow windwheel for the single fan blade of installation that the embodiment of the present invention one provides；
Fig. 5 is the vertical view of the axial-flow windwheel for the single fan blade of installation that the embodiment of the present invention one provides；
Fig. 6 is the stereogram of axial flow blower provided by Embodiment 2 of the present invention.
Specific implementation mode：
Below by specific embodiment and in conjunction with attached drawing, the present invention is described in further detail.
Embodiment one：
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 6, provided in this embodiment is a kind of axial-flow windwheel, if including wheel hub 2 and
Cured leaf piece 1, the blade 1 include pressure face 13 and suction surface 14, pressure face 13 and suction surface 14 be by blade root 11, outer rim 12,
Leading edge 15 and trailing edge 16 are surrounded, and the blade root 11 connect with the wheel hub 2, and the blade 1 is outwardly protruded in the trailing edge 16
There are an empennage 17, the empennage 17 to be positioned close at the outer rim 12.The shape of empennage 17 is in orthographic projection depending on being on vertical view
Triangle or arrowhead form.
Axial-flow windwheel described in the present embodiment, empennage 17 make the trailing edge 16 fall off in trailing edge 16 due to being divided into two-stage, air-flow
When the vortex that generates form phase difference with the vortex that air-flow is generated when empennage 17 falls off, the vortex generated when falling off is refined
And rectification, air-flow more can smooth sequential fall off, to reduce noise and promote wind turbine efficiency；
It is above-mentioned from blade root 11 to 12 direction of outer rim, the empennage 17 in the trailing edge 16 is outwardly protruded and to be formed initial line 171
With termination side 172, the termination side 172 is intersected with the outer rim 12, described initial line 171 and the intersection for terminating side 172
Point A2, leaf grating length L2 of the blade 1 at the crosspoint A2 and the leaf grating length L1 of the outer rim 12 meet：L1≤L2
≤1.2L1.Empennage 17 is simple in structure, excellent noise reduction effect.
12 crosspoint A3 of termination side 172 described above and the outer rim, the wheel hub 2 center O's and the crosspoint A3
Line OA3, line OA3 meet with the angle γ for terminating side 172:5°≤γ≤80°.
The center O of wheel hub 2 described above regards the distance of the outer rim 12 on vertical view to blade 1 as impeller outer diameter in orthographic projection
R, described initial line 171 are crossed to form starting point A1 with the trailing edge 16, and the distance OA1 of center O to starting point A1 meets：0.8R
≤OA1≤0.9R.Separation bubble can be isolated with normal airflow to greatest extent, normal airflow steadily from blade fall off from
And the flowing velocity of fan blade air-flow is improved, noise is reduced and promotes the efficiency of fan blade.
The distance OA2 of described above initial line 171 and the crosspoint A2 to center O for terminating side 172 meet：0.85R
≤OA2≤0.95R。
Described above initial line 171 meets with the angle α for terminating side 172:80°≤α≤160°.
The angle β of trailing edge 16 described above and described initial line 171 meets:90°≤β≤110°.
Angle α and angle β described above is fillet.
The shape of empennage 17 described above is in orthographic projection depending on being triangle or arrowhead form on vertical view.
Table one shows the performance test data comparison of axial-flow windwheel described in the present embodiment and axial-flow windwheel in the prior art：
Table one
Embodiment two：
A kind of axial flow blower as shown in figure 4, provided in this embodiment, including motor 4 and on motor 4 axis stream
Wind wheel 3, it is characterised in that：The axial-flow windwheel 3 is the axial-flow windwheel described in embodiment one.
The axial flow blower described in the present embodiment, is improved by the structure to axial-flow windwheel, makes axial flow blower performance
Stablize, noise is small.
Above example is the better embodiment of the present invention, and embodiments of the present invention are not limited thereto, other are any
Changes, modifications, substitutions, combinations, simplifications made by without departing from the spirit and principles of the present invention are equivalent displacement side
Formula is included within the scope of the present invention.
Claims (10)
1. a kind of axial-flow windwheel, including wheel hub (2) and several blades (1), the blade (1) include pressure face (13) and suction surface
(14), pressure face (13) and suction surface (14) are surrounded by blade root (11), outer rim (12), leading edge (15) and trailing edge (16), institute
Blade root (11) is stated to connect with the wheel hub (2), it is characterised in that：The blade (1) has outwardly protruded one in the trailing edge (16)
Empennage (17), the empennage (17) are positioned close at the outer rim (12).
2. a kind of axial-flow windwheel according to claim 1, it is characterised in that：From blade root (11) to outer rim (12) direction, institute
State empennage (17) initial line (171) and termination side (172), termination side (172) in the trailing edge (16) is outwardly protruded and to be formed
Intersect with the outer rim (12), described initial line (171) and the crosspoint A2 for terminating side (172), the blade (1) is in institute
Leaf grating length L2 and the leaf grating length L1 of the outer rim (12) at crosspoint A2 is stated to meet：L1≤L2≤1.2L1.
3. a kind of axial-flow windwheel according to claim 2, it is characterised in that：The termination side (172) and the outer rim
(12) crosspoint A3, the line OA3 of wheel hub (2) the center O and the crosspoint A3, line OA3 and the termination side (172)
Angle γ meet:5°≤γ≤80°.
4. a kind of axial-flow windwheel according to claim 3, it is characterised in that：The center O of the wheel hub (2) is regarded in orthographic projection
The distance that the outer rim (12) of blade (1) is arrived on vertical view is impeller outer diameter R, described initial line (171) and the trailing edge (16) phase
Friendship forms starting point A1, and the distance OA1 of center O to starting point A1 meets：0.8R≤OA1≤0.9R.
5. a kind of axial-flow windwheel according to claim 4, it is characterised in that：Described initial line (171) and the termination side
(172) the distance OA2 of crosspoint A2 to center O meets：0.85R≤OA2≤0.95R.
6. a kind of axial-flow windwheel according to Claims 2 or 3 or 4 or 5, it is characterised in that：Described initial line (171) and institute
State the angle α satisfaction for terminating side (172):80°≤α≤160°.
7. a kind of axial-flow windwheel according to claim 6, it is characterised in that：The trailing edge (16) and described initial line
(171) angle β meets:90°≤β≤110°.
8. a kind of axial-flow windwheel according to claim 7, it is characterised in that：The angle α and angle β are fillet.
9. according to a kind of axial-flow windwheel described in claims 1 or 2 or 3 or 4 or 5, it is characterised in that：The shape of the empennage (17)
Shape is in orthographic projection depending on being triangle or arrowhead form on vertical view.
10. a kind of axial flow blower, including motor (4) and the axial-flow windwheel (3) mounted on (4) on motor, it is characterised in that：It is described
Axial-flow windwheel (3) is the axial-flow windwheel described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147473.2A CN108386384A (en) | 2018-02-12 | 2018-02-12 | A kind of axial flow blower of axial-flow windwheel and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147473.2A CN108386384A (en) | 2018-02-12 | 2018-02-12 | A kind of axial flow blower of axial-flow windwheel and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108386384A true CN108386384A (en) | 2018-08-10 |
Family
ID=63069574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810147473.2A Pending CN108386384A (en) | 2018-02-12 | 2018-02-12 | A kind of axial flow blower of axial-flow windwheel and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108386384A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469643A (en) * | 2018-10-31 | 2019-03-15 | 广东美的制冷设备有限公司 | Axial-flow windwheel, axial flow blower, air conditioner indoor unit and air-conditioner outdoor unit |
| WO2020042551A1 (en) * | 2018-09-01 | 2020-03-05 | 中山大洋电机股份有限公司 | Axial flow fan wheel and axial flow fan using same |
| CN114754023A (en) * | 2022-03-28 | 2022-07-15 | 约克广州空调冷冻设备有限公司 | Blade, impeller and backward centrifugal fan |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016401A (en) * | 2013-01-11 | 2013-04-03 | 广东顺威精密塑料股份有限公司 | Novel axial fan for air-conditioner outdoor unit |
| KR20130107442A (en) * | 2012-03-22 | 2013-10-02 | 한라비스테온공조 주식회사 | Axial flow fan |
| CN103939392A (en) * | 2013-01-18 | 2014-07-23 | 珠海格力电器股份有限公司 | Axial flow fan blade and air conditioner with same |
| CN204716616U (en) * | 2015-06-15 | 2015-10-21 | 广东顺威精密塑料股份有限公司 | A kind of highly effective low noise axial-flow windwheel of air conditioner outdoor machine |
| CN106337840A (en) * | 2016-11-09 | 2017-01-18 | 广东美的暖通设备有限公司 | Axial-flow Wind Wheel and Airconditioner with Axial-flow Wind Wheel |
| CN106593952A (en) * | 2017-01-12 | 2017-04-26 | 珠海格力电器股份有限公司 | Axial flow fan blade and fan and air conditioner outdoor unit with same |
| CN207920963U (en) * | 2018-02-12 | 2018-09-28 | 中山宜必思科技有限公司 | A kind of axial flow blower of axial-flow windwheel and its application |
-
2018
- 2018-02-12 CN CN201810147473.2A patent/CN108386384A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130107442A (en) * | 2012-03-22 | 2013-10-02 | 한라비스테온공조 주식회사 | Axial flow fan |
| CN103016401A (en) * | 2013-01-11 | 2013-04-03 | 广东顺威精密塑料股份有限公司 | Novel axial fan for air-conditioner outdoor unit |
| CN103939392A (en) * | 2013-01-18 | 2014-07-23 | 珠海格力电器股份有限公司 | Axial flow fan blade and air conditioner with same |
| CN204716616U (en) * | 2015-06-15 | 2015-10-21 | 广东顺威精密塑料股份有限公司 | A kind of highly effective low noise axial-flow windwheel of air conditioner outdoor machine |
| CN106337840A (en) * | 2016-11-09 | 2017-01-18 | 广东美的暖通设备有限公司 | Axial-flow Wind Wheel and Airconditioner with Axial-flow Wind Wheel |
| CN106593952A (en) * | 2017-01-12 | 2017-04-26 | 珠海格力电器股份有限公司 | Axial flow fan blade and fan and air conditioner outdoor unit with same |
| CN207920963U (en) * | 2018-02-12 | 2018-09-28 | 中山宜必思科技有限公司 | A kind of axial flow blower of axial-flow windwheel and its application |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042551A1 (en) * | 2018-09-01 | 2020-03-05 | 中山大洋电机股份有限公司 | Axial flow fan wheel and axial flow fan using same |
| US11286946B2 (en) | 2018-09-01 | 2022-03-29 | Zhongshan Broad-Ocean Motor Co., Ltd. | Wind wheel and fan comprising the same |
| CN109469643A (en) * | 2018-10-31 | 2019-03-15 | 广东美的制冷设备有限公司 | Axial-flow windwheel, axial flow blower, air conditioner indoor unit and air-conditioner outdoor unit |
| CN114754023A (en) * | 2022-03-28 | 2022-07-15 | 约克广州空调冷冻设备有限公司 | Blade, impeller and backward centrifugal fan |
| CN114754023B (en) * | 2022-03-28 | 2024-06-07 | 约克广州空调冷冻设备有限公司 | Blade, impeller and backward centrifugal fan |
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