CN103573702B - A kind of axial-flow windwheel and air-conditioning - Google Patents
A kind of axial-flow windwheel and air-conditioning Download PDFInfo
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- CN103573702B CN103573702B CN201210265015.1A CN201210265015A CN103573702B CN 103573702 B CN103573702 B CN 103573702B CN 201210265015 A CN201210265015 A CN 201210265015A CN 103573702 B CN103573702 B CN 103573702B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 10
- 210000001652 frontal lobe Anatomy 0.000 claims abstract description 60
- 241000272517 Anseriformes Species 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims description 6
- 101000878457 Macrocallista nimbosa FMRFamide Proteins 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 1
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Abstract
The present invention is applicable to air-conditioning technical field, provides a kind of axial-flow windwheel and air-conditioning, and described axial-flow windwheel comprises wheel hub, and described wheel hub is installed with multiple main lobe, establishes frontal lobe between adjacent main lobe, and described frontal lobe and main lobe are upwards arranged in canard configuration at hub spindle.When wind wheel rotates, inlet side air-flow accelerates through frontal lobe the separated vorticcs forming interference main lobe air-flow, the suction backflow that main lobe root leading edge is piled up taken away is produced on main lobe suction surface, make main lobe root leading edge air-flow become smooth and easy, reality does work area increase, thus in this axial-flow windwheel, family status matter is good, efficiency is high.
Description
Technical field
The invention belongs to air-conditioning technical field, particularly relate to a kind of axial-flow windwheel and air-conditioning.
Background technique
Air conditioner outdoor machine many employings axial-flow blower, as blower part, provides power for participating in the air of heat exchange in heat exchanger.
In recent years, axial-flow fan blade develops into bent blades, twisted blade and present three-dimensional flexural tensile elastic modulus from common blade the earliest, and the routine of blade quantity from is leafy develops into four leaves, three leaves and two leaves.At present, air conditioner outdoor machine adopts three blade wind-wheels mostly, only has small part to adopt four leaves and two blade wind-wheels.As shown in Fig. 1 ~ 4, the common trait of these axial-flow windwheels is: on same wind wheel the geometrical shape of each blade and established angle identical, and blade is distributed on wheel hub.Though the sweepforward layout of this routine can effectively improve wind wheel aeroperformance, be difficult to effectively suppress the backflow of blade root leading edge, the problem of stream inferior quality in ubiquity.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of axial-flow windwheel, is intended to solve the inferior problem of stream in existing axial-flow windwheel.
The embodiment of the present invention is achieved in that a kind of axial-flow windwheel, comprises wheel hub, and described wheel hub is installed with multiple main lobe, establishes frontal lobe between adjacent main lobe, and described frontal lobe and main lobe are upwards arranged in canard configuration at hub spindle.
Another object of the embodiment of the present invention is to provide a kind of air-conditioning, and described air-conditioning adopts above-mentioned axial-flow windwheel.
The embodiment of the present invention establishes frontal lobe between adjacent main lobe, and frontal lobe and main lobe are upwards arranged in canard configuration at hub spindle, when wind wheel rotates, inlet side air-flow accelerates through frontal lobe the separated vorticcs forming interference main lobe air-flow, the suction backflow that main lobe root leading edge is piled up taken away is produced on main lobe suction surface, make main lobe root leading edge air-flow become smooth and easy, reality does work area increase, thus in this axial-flow windwheel, family status matter is good, efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation (two leaves) of the axial-flow windwheel that prior art provides;
Fig. 2 is the structural representation (three leaves) of the axial-flow windwheel that prior art provides;
Fig. 3 is the structural representation (four leaves) of the axial-flow windwheel that prior art provides;
Fig. 4 is existing axial-flow windwheel blade suction surface blade root local flow pattern schematic diagram;
Fig. 5 is the stereogram of the axial-flow windwheel that the embodiment of the present invention one provides;
Fig. 6 is the plan view of wind wheel shown in Fig. 5;
Fig. 7 is the worm's eye view of wind wheel shown in Fig. 5;
Fig. 8 is the definition structure of rotor diameter shown in Fig. 5 schematic diagram;
Fig. 9 is the height of wind wheel shown in Fig. 5 definition structure schematic diagram;
Figure 10 is Fig. 8 B-B sectional drawing;
Figure 11 is the main lobe of wind wheel shown in Fig. 5 suction surface blade root local flow pattern schematic diagram;
Figure 12 is the conventional axial-flow windwheel power-current capacity contrast's plotted curve of wind wheel shown in Fig. 5 and two leaves;
The plan view of the axial-flow windwheel that Figure 13 provides for the embodiment of the present invention two;
The plan view of the axial-flow windwheel that Figure 14 provides for the embodiment of the present invention three.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention establishes frontal lobe between adjacent main lobe, and frontal lobe and main lobe are upwards arranged in canard configuration at hub spindle, when wind wheel rotates, inlet side air-flow accelerates through frontal lobe the separated vorticcs forming interference main lobe air-flow, the suction backflow that main lobe root leading edge is piled up taken away is produced on main lobe suction surface, make main lobe root leading edge air-flow become smooth and easy, reality does work area increase, thus in this axial-flow windwheel, family status matter is good, efficiency is high.
Below enumerate some embodiments to be described in detail realization of the present invention.
embodiment one
As shown in Fig. 5 ~ 11, the axial-flow windwheel 1 that the embodiment of the present invention provides comprises wheel hub 2, and described wheel hub 2 is installed with multiple main lobe 3, establishes frontal lobe 4 between adjacent main lobe 3, and described frontal lobe 4 is axially arranged in canard configuration at wheel hub 1 with main lobe 3.Axial-flow windwheel 1(is hereinafter referred to as wind wheel) when rotating, inlet side air-flow accelerates through frontal lobe 4 separated vorticcs forming interference main lobe air-flow, the suction backflow that main lobe root leading edge is piled up taken away is produced on main lobe suction surface, make main lobe root leading edge air-flow become smooth and easy, reality does work area increase, thus in this axial-flow windwheel 1, family status matter is good, efficiency is high.
Usually, relative to the air-flow flowing through wind wheel 1, described frontal lobe 4 is positioned at the upstream of main lobe 3 in hub spindle position upwards, makes family status matter in wind wheel 1 better.
Main lobe 3 described in the embodiment of the present invention and frontal lobe 4 are respectively antecurvature plunderring and plunder design with palintrope, and described frontal lobe 4 adopts palintrope leading edge and straight trailing edge moulding and this trailing edge has a sweepforward angle.Wherein, described frontal lobe 4 is arranged on the hub 2 in upper canard configuration with main lobe 3.It should be noted that and described frontal lobe 4 also can be made herein to arrange on the hub 2 in the next canard configuration with main lobe 3, strengthen the flexibility that wind wheel 1 designs.Should be appreciated that described main lobe 3 can also be sweepback or prismatic blade design.
Particularly, described main lobe 3 comprises blade inlet edge 3a, trailing edge 3b, blade root 3c, blade tip 3d, pressure side 3e and suction surface 3f.Similarly, described frontal lobe 4 comprises blade inlet edge 4a, trailing edge 4b, blade root 4c, blade tip 4d, pressure side 4e and suction surface 4f.Main lobe 3 described herein and frontal lobe 4 are two, certainly can increase as required.
If the diameter of described wheel hub 2 is defined as d, in plan view, described main lobe 3 is defined as rotor diameter D to the diameter of wind wheel rotating center axial line distance point J place circumference farthest, in plan view, described frontal lobe 4 is defined as D1 to the diameter of wind wheel rotating center axial line distance point K place circumference farthest.Meanwhile, (D-d)/2 are set as the height R1 of described main lobe 3, (D1-d)/2 are set as the height R2 of described frontal lobe 4, then make the scope of R2/R1 be 0.2 ~ 0.8.
If the height difference on described main lobe 3 between peak A and the minimum point E of main lobe trailing edge is defined as wind wheel height H, the height difference on described frontal lobe 4 between peak C and the minimum point E of main lobe trailing edge is defined as h, then make the scope of h/H be 0.7 ~ 1.0; If the height difference between the peak F of described main lobe root and the minimum point E of main lobe trailing edge is defined as H1, the height difference between the minimum point G of described front blade root and the minimum point E of main lobe trailing edge is defined as H2, then make the scope of H2/H1 be 1.0 ~ 1.5.In addition, if the developed area of described main lobe 3 is defined as S, the developed area of described frontal lobe 4 is defined as S1, then make the scope of S1/S be 0.05 ~ 0.3, so makes main lobe 3 reality acting area increase further.
If the line of the intersection point of the rotating center of wind wheel in plan view and frontal lobe leading edge and wheel hub excircle is defined as line k1, in plan view, the line of the rotating center of wind wheel and the intersection point of frontal lobe trailing edge and wheel hub excircle is defined as line k2.When described frontal lobe leading edge 4a adopts sweepback to design, the tangent line of frontal lobe leading edge 4a midpoint in plan view or straight angle between leading edge and line k1 are defined as frontal lobe leading edge sweep χ, then make the scope of described frontal lobe leading edge sweep χ be 0 ° ~ 60 °; When described frontal lobe trailing edge 4b adopts sweepforward to design, the tangent line of frontal lobe trailing edge 4b midpoint in plan view or straight angle between trailing edge and line k2 are defined as frontal lobe trailing edge sweepforward angle α, then make the scope of described frontal lobe trailing edge sweepforward angle α be 0 ° ~ 35 °.
As shown in figure 12, when load, motor, consumed power are identical, and when R2/R1=0.64, h/H=0.91, H2/H1=1.17, S1/S=0.15, χ=51 °, α=16 °, the air quantity of this axial-flow windwheel increases by 5% ~ 8% compared with the air quantity of the conventional axial-flow windwheels of two leaves.
embodiment two
With embodiment one unlike, described frontal lobe 4 designs for sweepback and adopts straight front and rear edges moulding, and the scope at its leading edge 4a sweepback angle is 50 ° ~ 60 °, trailing edge 4b without plunderring angle, as shown in figure 13.
embodiment three
With embodiment one unlike, described frontal lobe 4 designs for sweepback and adopts straight front and rear edges moulding, and the scope at its leading edge 4a sweepback angle is 30 ° ~ 40 °, and the scope of trailing edge 4b sweepforward angle is 20 ° ~ 30 °, as shown in figure 14.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an axial-flow windwheel, comprises wheel hub, it is characterized in that, described wheel hub is installed with multiple main lobe, establishes frontal lobe between adjacent main lobe, and described frontal lobe and main lobe are that canard configuration is arranged on wheel hub; Relative to the air-flow flowing through wind wheel, described frontal lobe is positioned at main lobe upstream in hub spindle position upwards, when wind wheel rotates, inlet side air-flow accelerates through described frontal lobe the separated vorticcs forming the described main lobe air-flow of interference, produces the suction backflow that the root leading edge of described main lobe is piled up taken away on the suction surface of described main lobe.
2. axial-flow windwheel as claimed in claim 1, it is characterized in that, described main lobe and frontal lobe are respectively antecurvature plunderring and plunder design with palintrope, and described frontal lobe adopts palintrope leading edge and straight trailing edge moulding and this trailing edge has a sweepforward angle; Described frontal lobe and main lobe are that upper canard configuration is arranged on wheel hub.
3. axial-flow windwheel as claimed in claim 2, it is characterized in that, if the diameter of described wheel hub is defined as d, in plan view, described main lobe is defined as rotor diameter D to the diameter of wind wheel rotating center axial line distance point J place circumference farthest, in plan view, described frontal lobe is defined as D1 to the diameter of wind wheel rotating center axial line distance point K place circumference farthest; (D-d)/2 are set as the height R1 of described main lobe, (D1-d)/2 are set as the height R2 of described frontal lobe, then make the scope of R2/R1 be 0.2 ~ 0.8.
4. axial-flow windwheel as claimed in claim 3, it is characterized in that, if the height difference between the minimum point E of peak A and main lobe trailing edge on described main lobe is defined as wind wheel height H, on described frontal lobe peak C and main lobe trailing edge minimum point E between height difference be defined as h, then make the scope of h/H be 0.7 ~ 1.0; If the height difference between the peak F of described main lobe root and the minimum point E of main lobe trailing edge is defined as H1, the height difference between the minimum point G of described front blade root and the minimum point E of main lobe trailing edge is defined as H2, then make the scope of H2/H1 be 1.0 ~ 1.5.
5. the axial-flow windwheel as described in claim 3 or 4, is characterized in that, if the developed area of described main lobe is defined as S, the developed area of described frontal lobe is defined as S1, then make the scope of S1/S be 0.05 ~ 0.3.
6. axial-flow windwheel as claimed in claim 5, it is characterized in that, if the line of the intersection point of the rotating center of wind wheel in plan view and frontal lobe leading edge and wheel hub excircle is defined as line k1, in plan view, the line of the rotating center of wind wheel and the intersection point of frontal lobe trailing edge and wheel hub excircle is defined as line k2; When described frontal lobe leading edge adopts sweepback to design, the tangent line of frontal lobe leading edge midpoint in plan view or straight angle between leading edge and line k1 are defined as frontal lobe leading edge sweep χ, then make the scope of described frontal lobe leading edge sweep χ be 0 ° ~ 60 °; When described frontal lobe trailing edge adopts sweepforward to design, the tangent line of frontal lobe trailing edge midpoint in plan view or straight angle between trailing edge and line k2 are defined as frontal lobe trailing edge sweepforward angle α, then make the scope of described frontal lobe trailing edge sweepforward angle α be 0 ° ~ 35 °.
7. axial-flow windwheel as claimed in claim 1, it is characterized in that, described frontal lobe designs for sweepback and adopts straight front and rear edges moulding, and the scope of its leading edge sweep is 50 ° ~ 60 °, and trailing edge is without plunderring angle.
8. axial-flow windwheel as claimed in claim 1, it is characterized in that, described frontal lobe designs for sweepback and adopts straight front and rear edges moulding, and the scope of its leading edge sweep is 30 ° ~ 40 °, and the scope of trailing edge sweepforward angle is 20 ° ~ 30 °.
9. an air-conditioning, is characterized in that, described air-conditioning adopts the axial-flow windwheel according to any one of claim 1 ~ 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210265015.1A CN103573702B (en) | 2012-07-27 | 2012-07-27 | A kind of axial-flow windwheel and air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210265015.1A CN103573702B (en) | 2012-07-27 | 2012-07-27 | A kind of axial-flow windwheel and air-conditioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103573702A CN103573702A (en) | 2014-02-12 |
| CN103573702B true CN103573702B (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210265015.1A Expired - Fee Related CN103573702B (en) | 2012-07-27 | 2012-07-27 | A kind of axial-flow windwheel and air-conditioning |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023513A (en) * | 2017-06-16 | 2017-08-08 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752457A (en) * | 2004-09-22 | 2006-03-29 | 松下电器产业株式会社 | Blower impeller |
| CN201318325Y (en) * | 2008-12-01 | 2009-09-30 | 漳州灿坤实业有限公司 | Fan vane group |
| CN201874883U (en) * | 2010-11-18 | 2011-06-22 | 中山市朗迪电器有限公司 | Axial flow fan blade |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1750013B1 (en) * | 2004-05-28 | 2014-05-07 | Hitachi Metals Precision, Ltd. | Impeller for supercharger and method of manufacturing the same |
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2012
- 2012-07-27 CN CN201210265015.1A patent/CN103573702B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752457A (en) * | 2004-09-22 | 2006-03-29 | 松下电器产业株式会社 | Blower impeller |
| CN201318325Y (en) * | 2008-12-01 | 2009-09-30 | 漳州灿坤实业有限公司 | Fan vane group |
| CN201874883U (en) * | 2010-11-18 | 2011-06-22 | 中山市朗迪电器有限公司 | Axial flow fan blade |
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| CN103573702A (en) | 2014-02-12 |
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