CN103511334A - Impeller and manufacturing method thereof, centrifugal fan and sweeper - Google Patents
Impeller and manufacturing method thereof, centrifugal fan and sweeper Download PDFInfo
- Publication number
- CN103511334A CN103511334A CN201310475473.2A CN201310475473A CN103511334A CN 103511334 A CN103511334 A CN 103511334A CN 201310475473 A CN201310475473 A CN 201310475473A CN 103511334 A CN103511334 A CN 103511334A
- Authority
- CN
- China
- Prior art keywords
- impeller
- molded line
- wheel disc
- curve
- described impeller
- 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.)
- Granted
Links
Images
Abstract
The invention discloses an impeller and a manufacturing method thereof, a centrifugal fan and a sweeper, wherein the centrifugal fan comprises the impeller. The shape of an impeller cover molded line (1) of the impeller is matched with that of a curve (Z, R), the curve (Z, R) makes a rotary shaft of the impeller as a transverse axis and makes the direction perpendicular to the rotary shaft as a longitudinal axis, the direction perpendicular to the rotary shaft is located in the impeller plate plane of the impeller, and the curve satisfies the equations shown as follows. The impeller cover molded line of the impeller is reasonable in design, airflow enters in the axial direction of the impeller, and flows out in the radial direction, so that the airflow which turns round just flows close to an impeller cover and an impeller plate, separation flowing nearby the surface of the impeller cover is reduced, the airflow of a passageway of the impeller is more smooth, and therefore performance of the centrifugal fan is improved, and noise of the centrifugal fan is reduced.
Description
Technical field
The present invention relates to environmental sanitation field, particularly, the centrifugal blower and the sweeper that relate to a kind of impeller and manufacture method thereof and comprise this impeller.
Background technique
Centrifugal blower comprises wheel cap, wheel disc, wheel shaft and spiral case, and the profile line of the meridian plane of impeller comprises wheel cap molded line and wheel disc molded line, and wheel disc molded line is to form perpendicular to the straight line of impeller axis and one section of circular arc, and wheel cap molded line is curve.The wheel cap Profile Design of existing scavenging vehicle impeller, mainly based on one dimension or two-dimensional ideal fluid hypothesis, adopts simple hyperbola wheel cap form or inclination through ship lid form mostly.And in fact impeller internal flow is complicated Three-dimensional Flow, impeller meridian surface profile line has material impact to the performance of blower fan.Therefore, there is the phenomenons such as separated flow, eddy-currents in the impeller of prior art, and noise is larger.
Summary of the invention
The object of this invention is to provide a kind of impeller that can reduce separated flow, eddy-currents and noise.
To achieve these goals, the invention provides a kind of impeller, wherein, the wheel cap molded line 1 of described impeller forms the shape that meets curve (Z, R), wherein, curve (Z, R) be that to take the axis of described impeller be transverse axis, the curve that the direction of take perpendicular to described axis the wheel disc plane by described impeller is the longitudinal axis, its representation is:
Wherein: the design discharge that Q is impeller, the correction factor of K for considering to leak, r
mradially radius for described impeller;
for considering that air-flow can not be full of the correction factor of whole width of flow path, τ is for considering the blockage factor of vane thickness; R is import " flow cross-section " molded line of described impeller
end points M(0, r) ordinate value, C
mbe the regularity of distribution of the suitable meridian speed that obtains by Numerical Simulation Analysis, and meet C
m=Ar
m+ B.
The present invention also provides a kind of centrifugal blower, and wherein, this centrifugal blower comprises impeller of the present invention.
The present invention also provides a kind of sweeper, and wherein, described sweeper comprises centrifugal blower of the present invention.
The present invention also provides a kind of manufacture method of impeller, and this manufacture method comprises:
Make the wheel cap molded line 1 of described impeller form the shape that meets curve (Z, R), wherein, curve (Z, R) be that to take the axis of described impeller be transverse axis, the curve that the direction of take perpendicular to described axis the wheel disc plane by described impeller is the longitudinal axis, its representation is:
Wherein: the design discharge that Q is impeller, the correction factor of K for considering to leak, r
mradially radius for described impeller;
for considering that air-flow can not be full of the correction factor of whole width of flow path, τ is for considering the blockage factor of vane thickness; R is import " flow cross-section " molded line of described impeller
end points M(0, r) ordinate value, C
mbe the regularity of distribution of the suitable meridian speed that obtains by Numerical Simulation Analysis, and meet C
m=Ar
m+ B.
Pass through technique scheme, wheel cap Profile Design of the present invention is reasonable, air-flow, from impeller shaft to entering, radially flows out, when air-flow enters into impeller region by slip ring, can produce by axially to turning to radially, make air flow energy after turning to just paste wheel cap, wheel disc flows, and has reduced near the generation of separated flow wheel capping, makes the air-flow of impeller channel more smooth and easy, thereby the performance that improves centrifugal blower, reduces its noise.
Other features and advantages of the present invention partly in detail are described the embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of mode of execution of explanation impeller of the present invention;
Fig. 2 is the structural representation of the another kind of mode of execution of explanation impeller of the present invention;
Fig. 3 is the schematic diagram of the curve of the wheel cap molded line in explanatory drawing 2.
Description of reference numerals
1 wheel cap molded line 2 wheel disc molded line
10 wheel cap 20 wheel disc 30 wheel shaft 40 spiral cases
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that not doing contrary explanation, the noun of locality Ru“ upper and lower, left and right of use " typically refer to reference to upper and lower, left and right shown in the drawings; " inside and outside " refers to inside and outside with respect to the profile of each parts itself.
According to an aspect of the present invention, a kind of impeller is provided, described impeller comprises wheel cap 10, and wherein, the wheel cap molded line 1 of described wheel cap 10 forms and meets curve (Z, R) shape, wherein, to take described impeller (rotating shaft 30) axis be transverse axis to curve (Z, R), the curve that the direction of take perpendicular to described axis the wheel disc plane by described impeller is the longitudinal axis, its representation is:
Wherein: the design discharge that Q is impeller, the correction factor of K for considering to leak, r
mradially radius for described impeller;
for considering that air-flow can not be full of the correction factor of whole width of flow path, τ is for considering the blockage factor of vane thickness; R is import " flow cross-section " molded line of described impeller
end points M(0, r) ordinate value, C
mbe the regularity of distribution of the suitable meridian speed that obtains by Numerical Simulation Analysis, and meet C
m=Ar
m+ B.
In addition, according to a further aspect in the invention, provide a kind of manufacture method of impeller, this manufacture method comprises:
Make the wheel cap molded line 1 of the wheel cap 10 of described impeller form the shape that meets curve (Z, R), wherein, curve (Z, R) be that to take the axis of described impeller be transverse axis, the curve that the direction of take perpendicular to described axis the wheel disc plane by described impeller is the longitudinal axis, its representation is:
Wherein: the design discharge that Q is impeller, the correction factor of K for considering to leak, r
mradially radius for described impeller;
for considering that air-flow can not be full of the correction factor of whole width of flow path, τ is for considering the blockage factor of vane thickness; R is import " flow cross-section " molded line of described impeller
end points M(0, r) ordinate value, C
mbe the regularity of distribution of the suitable meridian speed that obtains by Numerical Simulation Analysis, and meet C
m=Ar
m+ B.
According to a further aspect in the invention, provide a kind of centrifugal blower, wherein, this centrifugal blower comprises impeller of the present invention.
According to a further aspect in the invention, provide a kind of sweeper, wherein, described sweeper comprises centrifugal blower of the present invention.
Wherein, the wheel cap molded line 1 of impeller of the present invention is the one section of Smoothing spline curve that controlled by higher order polynomial based on Theory of Three-dimensional Flowing.The wheel cap molded line of existing impeller is substantially based on the mobile Theoretical Design of monobasic, and monobasic flow design has been ignored impeller meridian plane, the key impact of turning surface vortex flow on vehicle fan noiseproof feature, this is irrational for the special-purpose low noise fan design of sweeping machine.The present invention is the structural type of designing based on Theory of Three-dimensional Flowing, meridian plane and the interactional effect of turning surface vortex flow have more reasonably been considered, to design the wheel cap molded line 1 that meets sweeping machine special fan low noise characteristic requirements from turbulent flow Physical Mechanism.Practice shows, than prior art, adopts centrifugal blower of the present invention under the same terms, and fan efficiency can improve 6 percentage points, the about 3dB of reducing noise, and energy-saving and noise-reducing effect is remarkable.
As shown in Figure 3, transverse axis z is the axis of rotating shaft 30, and longitudinal axis r is perpendicular to axis and by wheel disc plane (can represent hub disk molded line), and wheel cap molded line 1 is formed by the track of the some P on curve (Z, R).In Fig. 3, arc
for import " flow cross-section " molded line of impeller, O is arc
mid point.M point coordinates is that (0, r), O point coordinates is
on this basis, by can be calculated the representation of above-mentioned curve (Z, R).
Wheel cap molded line 1 of the present invention is reasonable in design, air-flow is from impeller shaft to entering, radially flow out, when air-flow enters into impeller region by slip ring, can produce by axially to turning to radially, make air flow energy after turning to just paste wheel cap 10, wheel disc 20 flows, reduced near the generation of the separated flow of wheel capping, make the air-flow of impeller channel more smooth and easy, thereby improve the performance of centrifugal blower, reduce its noise.
It should be noted that, Q is the flow designing as required, is the target component of impeller, r
m, K,
τ is also according to the given parameter of design, C
mbe by Numerical Simulation Analysis, obtain the regularity of distribution of suitable meridian speed.
Representation by above-mentioned curve (Z, R) is known, according to the value of r, can determine the concrete form of curve (Z, R).Then, because wheel cap molded line 1 reality is a part for curve (Z, R), thereby according to the span of Z or R, can determine the concrete shape (being the part on the corresponding curve of wheel cap molded line 1 (Z, R)) of curve (Z, R).
Wherein, can according to circumstances select the scope of each parameter.Preferably, 15≤r≤80,34.5≤Z≤145,1.05≤K≤3.2 ,-60.4≤A≤-15.2,0≤B≤32.6,
0 < τ < 0.986.
In addition, can set according to Z, R value other parameters of impeller.For example, the blade entrance width of described impeller is b1, and the exit width of described blade is b2, wherein, can make b1≤Z≤b2,0.836≤b1/b2≤1.726.
In addition, the inlet radius of described impeller is R1, and the port radius that goes out of described impeller is R2, wherein, can make R1≤R≤R2,0.12≤R1/R2≤0.967,0.035≤b1/R2≤0.635.
In addition, preferably, described impeller comprises wheel disc 20, and the wheel disc molded line 2 of described wheel disc 20 comprises tangent straightway 21 and arc section 22, and the radius of described arc section 22 is R3, extending axially length is H, minimum range between the arc section 22 of two relative wheel disc molded line is L, wherein, can make 1.108≤H/L≤1.232,45.35 < R3 < 66.38,0.239≤H/b1≤0.48.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible compound modes.
In addition, between various mode of execution of the present invention, also can carry out combination in any, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. an impeller, it is characterized in that, the wheel cap molded line (1) of described impeller forms and meets curve (Z, R) shape, wherein, curve (Z, R) is that to take the axis of described impeller be transverse axis, the curve that the direction of take perpendicular to described axis the wheel disc plane by described impeller is the longitudinal axis, its representation is:
Wherein: the design discharge that Q is impeller, the correction factor of K for considering to leak, r
mradially radius for described impeller;
for considering that air-flow can not be full of the correction factor of whole width of flow path, τ is for considering the blockage factor of vane thickness; R is import " flow cross-section " molded line of described impeller
end points M(0, r) ordinate value, C
mbe the regularity of distribution of the suitable meridian speed that obtains by Numerical Simulation Analysis, and meet C
m=Ar
m+ B.
2. impeller according to claim 1, is characterized in that, 15≤r≤80, and 34.5≤Z≤145,1.05≤K≤3.2 ,-60.4≤A≤-15.2,0≤B≤32.6,
0 < τ < 0.986.
3. impeller according to claim 1 and 2, is characterized in that, the blade entrance width of described impeller is b1, and the exit width of described blade is b2, wherein, and b1≤Z≤b2,0.836≤b1/b2≤1.726.
4. impeller according to claim 3, is characterized in that, the inlet radius of described impeller is R1, and the port radius that goes out of described impeller is R2, wherein, and R1≤R≤R2,0.12≤R1/R2≤0.967,0.035≤b1/R2≤0.635.
5. impeller according to claim 3, it is characterized in that, described impeller comprises wheel disc, and the wheel disc molded line (2) of described wheel disc comprises tangent straightway (21) and arc section (22), and the radius of described arc section (22) is R3, extending axially length is H, minimum range between the arc section (22) of two relative wheel disc molded line is L, wherein, and 1.108≤H/L≤1.232,45.35 < R3 < 66.38,0.239≤H/b1≤0.48.
6. a centrifugal blower, is characterized in that, this centrifugal blower comprises according to the impeller described in any one in claim 1-5.
7. a sweeper, is characterized in that, described sweeper comprises centrifugal blower according to claim 6.
8. a manufacture method for impeller, this manufacture method comprises:
Make the wheel cap molded line (1) of described impeller form the shape that meets curve (Z, R), wherein, curve (Z, R) be that to take the axis of described impeller be transverse axis, the curve that the direction of take perpendicular to described axis the wheel disc plane by described impeller is the longitudinal axis, its representation is:
Wherein: the design discharge that Q is impeller, the correction factor of K for considering to leak, r
mradially radius for described impeller;
for considering that air-flow can not be full of the correction factor of whole width of flow path, τ is for considering the blockage factor of vane thickness; R is import " flow cross-section " molded line of described impeller
end points M(0, r) ordinate value, C
mbe the regularity of distribution of the suitable meridian speed that obtains by Numerical Simulation Analysis, and meet C
m=Ar
m+ B.
9. the manufacture method of impeller according to claim 8, is characterized in that, 15≤r≤80, and 34.5≤Z≤145,1.05≤K≤3.2 ,-60.4≤A≤-15.2,0≤B≤32.6,
0 < τ < 0.986.
10. the manufacture method of impeller according to claim 8 or claim 9, is characterized in that, the blade entrance width of described impeller is b1, and the exit width of described blade is b2, wherein, and b1≤Z≤b2,0.836≤b1/b2≤1.726.
11. the manufacture method of impeller according to claim 10, is characterized in that, the inlet radius of described impeller is R1, and the port radius that goes out of described impeller is R2, wherein, and R1≤R≤R2,0.12≤R1/R2≤0.967,0.035≤b1/R2≤0.635.
The manufacture method of 12. impellers according to claim 10, it is characterized in that, described manufacture method comprises the wheel disc molded line (2) that forms impeller, the wheel disc molded line (2) of described wheel disc comprises tangent straightway (21) and arc section (22), the radius of described arc section (22) is R3, extending axially length is H, minimum range between the arc section (22) of two relative wheel disc molded line is L, wherein, 1.108≤H/L≤1.232,45.35 < R3 < 66.38,0.239≤H/b1≤0.48.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310475473.2A CN103511334B (en) | 2013-10-12 | 2013-10-12 | Impeller and manufacture method, centrifugal blower and sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310475473.2A CN103511334B (en) | 2013-10-12 | 2013-10-12 | Impeller and manufacture method, centrifugal blower and sweeper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103511334A true CN103511334A (en) | 2014-01-15 |
| CN103511334B CN103511334B (en) | 2016-01-20 |
Family
ID=49894599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310475473.2A Active CN103511334B (en) | 2013-10-12 | 2013-10-12 | Impeller and manufacture method, centrifugal blower and sweeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511334B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134621A (en) * | 2015-10-12 | 2015-12-09 | 上虞市勇臻机械有限公司 | High-pressure centrifugal fan for sweeping car |
| CN106593943A (en) * | 2016-12-06 | 2017-04-26 | 大连理工大学 | Nuclear main pump runner forming method based on intermediate line control |
| CN107642491A (en) * | 2017-11-02 | 2018-01-30 | 洛阳北玻台信风机技术有限责任公司 | Motor-car, the cooling of high ferro tractive transformer fluidize centrifugal blower with ternary |
| CN110374900A (en) * | 2019-08-09 | 2019-10-25 | 西安交通大学 | A kind of flow-mixing blower fan with sinusoidal pattern meridional channel |
| CN112182792A (en) * | 2020-08-21 | 2021-01-05 | 西安交通大学 | Universal meridian flow channel design method for diagonal flow/centrifugal impeller |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1142017A (en) * | 1995-03-20 | 1997-02-05 | 株式会社日立制作所 | Multi-stage centrifugal compressor, impeller and production method of same |
| JP3380897B2 (en) * | 2000-05-25 | 2003-02-24 | 防衛庁技術研究本部長 | Compressor |
| JP4115180B2 (en) * | 2002-07-11 | 2008-07-09 | 三菱重工業株式会社 | Impeller and centrifugal compressor |
| CN101631992A (en) * | 2007-03-14 | 2010-01-20 | 三菱电机株式会社 | Centrifugal fan, air conditioner |
| CN102562654A (en) * | 2012-01-03 | 2012-07-11 | 大同北方天力增压技术有限公司 | Blade profile design method for impeller of radial-flow air compressor |
-
2013
- 2013-10-12 CN CN201310475473.2A patent/CN103511334B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1142017A (en) * | 1995-03-20 | 1997-02-05 | 株式会社日立制作所 | Multi-stage centrifugal compressor, impeller and production method of same |
| JP3380897B2 (en) * | 2000-05-25 | 2003-02-24 | 防衛庁技術研究本部長 | Compressor |
| JP4115180B2 (en) * | 2002-07-11 | 2008-07-09 | 三菱重工業株式会社 | Impeller and centrifugal compressor |
| CN101631992A (en) * | 2007-03-14 | 2010-01-20 | 三菱电机株式会社 | Centrifugal fan, air conditioner |
| CN102562654A (en) * | 2012-01-03 | 2012-07-11 | 大同北方天力增压技术有限公司 | Blade profile design method for impeller of radial-flow air compressor |
Non-Patent Citations (1)
| Title |
|---|
| 姚承范等: "离心风机叶轮子午型线的数值设计", 《西安交通大学学报》, vol. 20, no. 6, 31 December 1986 (1986-12-31) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134621A (en) * | 2015-10-12 | 2015-12-09 | 上虞市勇臻机械有限公司 | High-pressure centrifugal fan for sweeping car |
| CN106593943A (en) * | 2016-12-06 | 2017-04-26 | 大连理工大学 | Nuclear main pump runner forming method based on intermediate line control |
| CN106593943B (en) * | 2016-12-06 | 2019-01-04 | 大连理工大学 | A kind of core main pump runner forming method based on intermediate line traffic control |
| CN107642491A (en) * | 2017-11-02 | 2018-01-30 | 洛阳北玻台信风机技术有限责任公司 | Motor-car, the cooling of high ferro tractive transformer fluidize centrifugal blower with ternary |
| CN107642491B (en) * | 2017-11-02 | 2024-03-12 | 洛阳北玻三元流风机技术有限公司 | Ternary fluidization centrifugal fan for cooling motor car and high-speed rail traction transformer |
| CN110374900A (en) * | 2019-08-09 | 2019-10-25 | 西安交通大学 | A kind of flow-mixing blower fan with sinusoidal pattern meridional channel |
| CN112182792A (en) * | 2020-08-21 | 2021-01-05 | 西安交通大学 | Universal meridian flow channel design method for diagonal flow/centrifugal impeller |
| CN112182792B (en) * | 2020-08-21 | 2022-12-09 | 西安交通大学 | Meridian flow channel design method universal for diagonal flow/centrifugal impeller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103511334B (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103511334A (en) | Impeller and manufacturing method thereof, centrifugal fan and sweeper | |
| CN103062112B (en) | Road cleaning equipment and centrifugal blower fan blade wheel thereof | |
| CN201297278Y (en) | Closed vane wheel with S-shaped novel vanes dedicated to small high-speed centrifugal fan | |
| CN104454664B (en) | A kind of multi-wing centrifugal fan | |
| CN104350308B (en) | There is axle and be placed in decelerator on axle, blower fan in fan shroud | |
| CN104728172A (en) | Centrifugal volute, centrifugal fan with same and air conditioner | |
| CN203516203U (en) | Centrifugal fan, volute thereof and sweeper truck | |
| CN108457898A (en) | A kind of blade wheel structure for compressor | |
| CN203685679U (en) | Centrifugal fan blade, centrifugal fan and air conditioner | |
| CN105823144A (en) | Air conditioner, fan and grating | |
| CN104806567A (en) | Centrifugal blade, centrifugal fan and air conditioner | |
| CN104806571B (en) | A kind of efficient centrifugal air blast based on computational fluid dynamics simulation | |
| CN103423203B (en) | Centrifugal blower and road sweeper | |
| CN104033422B (en) | A kind of small axial flow fan of band splitterr vanes | |
| CN105673567B (en) | Range hood and its fan assembly | |
| CN204267333U (en) | A kind of high performance of axial flow pump fan | |
| CN204200675U (en) | Centrifugal blower fan blade wheel, centrifugal blower and sweeper | |
| CN204284016U (en) | A kind of multi-wing centrifugal fan | |
| CN204692185U (en) | A kind of efficient centrifugal blower based on computational fluid dynamics simulation | |
| CN104131998A (en) | Fan and sweeping machine | |
| CN104990118B (en) | Check-valves and lampblack absorber | |
| CN104405654A (en) | Mute axial flow fan | |
| CN203627319U (en) | Centrifugal volute, centrifugal fan with centrifugal volute and air conditioner | |
| CN207393526U (en) | High-power micro-motor flow fan | |
| CN204421301U (en) | Air channel structure and air-conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170614 Address after: 410000 Hunan province Changsha hi tech Development Zone, Lin Yulu No. 288 Patentee after: Changsha ZOOMLION Environmental Industry Co., Ltd. Address before: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee before: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |