CN102966591A - Axial flow type fluid driving device - Google Patents
Axial flow type fluid driving device Download PDFInfo
- Publication number
- CN102966591A CN102966591A CN2012104590066A CN201210459006A CN102966591A CN 102966591 A CN102966591 A CN 102966591A CN 2012104590066 A CN2012104590066 A CN 2012104590066A CN 201210459006 A CN201210459006 A CN 201210459006A CN 102966591 A CN102966591 A CN 102966591A
- Authority
- CN
- China
- Prior art keywords
- blade
- axial
- unsettled
- flabellum
- blades
- 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 belongs to the field of fluid machines and relates to an axial flow type fluid driving device. The axial flow type fluid driving device comprises a hub, fan blades and a fairing which rotate together, wherein the fan blades are of radial fan blade structures and are arranged between the hub and the fairing. The axial flow type fluid driving device is characterized in that suspension blades are arranged on the axial flow type fluid driving device; the inner end of the suspension blades are of a cantilever structure; and the outer end of the suspension blades are in fastening connection with the fairing or are integrally formed with the fairing. Due to the adoption of the suspension blade structure, at least part of fan blades and the hub are not connected to yield part of axial inlet channel area, further the passing flow of a working medium can be increased and the conveying efficiency of the device is increased. The weight and the rotary inertia are reduced, so that the possibility of fatigue damage of a driving shaft of the device is reduced; the lengths of the blades are inconsistent, so that the action rules of the blades for the working medium or the action rules of the working medium for the blades are inconsistent, the noises can be reduced by suppressing the resonance phenomenon and the work reliability of the device is improved.
Description
Technical field
The invention belongs to the fluid machinery technical field, relate to a kind of fluid drive apparatus, relate in particular to a kind of axial-flow fluid drive unit, more specifically to blade structure and the layout of a kind of axial flow fan and axial--flow blading pump.
Background technique
The axial-flow fluid drive unit comprises axial flow fan and axial--flow blading pump etc., belongs to typical fluid machinery.The function of axial-flow fluid drive unit is that the rotation by flabellum comes driving fluid working medium, makes it to produce mainly flowing along the axial direction of live axle.The working medium that axial flow fan is carried is generally the fluid of gaseous state shape, and the working medium that the axial--flow blading pump is carried then is generally the fluid of liquid state.No matter be axial flow fan or axial--flow blading pump, the working medium that they are carried not only is the fluid of single kind material and single fluidised form, and include multiple different material and the fluid-mixing of different shape toward contact, so the flowing property of their working medium of carrying usually includes mixed flow and multiphase flow.
Traditional axial flow drive unit includes wheel hub, flabellum and cowling, and wherein flabellum adopts radial being arranged between wheel hub and the cowling.A kind of classical layout of axial flow drive unit is that wheel hub, flabellum and cowling are made of one structure and together rotation, just adopt this class formation such as the cooling fan of computer chip and some pipeline with vane pump etc., this moment, the inner of flabellum was connected with wheel hub, the outer end of flabellum is connected with cowling, flabellum is the strip of sheet blade with one fixed width, and flabellum and its plane of rotation have certain inclination angle and produce axial driving force with convection cell working medium.Obviously, the structure of above-mentioned integrated type axial flow drive unit is very simple, is fit to very much be arranged in the workplace that the space is subject to harsh restriction.But, above-mentioned integrated type axial flow drive unit but has obvious defective, be mainly reflected in three aspects: 1) because the scheme that adopts the root of each blade all to be connected with wheel hub, so that near the axial inlet channel cross-section of wheel hub because of blade intensive being blocked too, the result has hindered more passing through of multithread body working medium, reduced in other words the transfer efficiency of device, this shortcoming is particularly outstanding at small-sized axial flow fan and the performance of axial--flow blading pump; 2) because the scheme that adopts the root of each blade all to be connected with wheel hub, cause the oeverall quality of device especially to cause the rotary inertia of whole device larger greatly, under identical operating conditions so that the device moment of inertia larger, the result has increased the burden of device live axle, and this point very easily causes the fatigue fracture of live axle for some fans of the intermittent cycle work such as frequent starting-turn round-stop or pump; 3) because the scheme that adopts the root of each blade all to be connected with wheel hub, so that the structural element of every a slice blade such as size, form and layout etc. are substantially identical or similar, to such an extent as to they are all very similar for the action rule of blade to action rule or the working medium of working medium, the result very easily causes the generation of resonance phenomenon, not only larger running noises can be produced, but also the functional reliability of device can be endangered.
Summary of the invention
Defects for traditional axial flow drive unit existence, the present invention proposes a kind of axial-flow fluid drive unit, purpose is effectively to increase on the one hand the axial inlet aisle spare of axial flow drive unit to improve the transfer efficiency of device, effectively reduce on the other hand the quality of axial flow drive unit and fatigue ruption appears in rotary inertia to reduce its live axle chance, generation that in addition can also the establishment resonance phenomenon is to reduce noise and to improve the functional reliability of device.
The object of the present invention is achieved like this: a kind of axial-flow fluid drive unit, comprise wheel hub, flabellum and cowling, wherein flabellum adopts radial being arranged between wheel hub and the cowling, it is characterized in that: be provided with unsettled blade, cantilever structure is adopted in the inner of described unsettled blade, the outer end of unsettled blade and cowling be fastenedly connected or with the cowling making that is structure as a whole.
The specification that includes two or more length in the above-mentioned unsettled blade.
Be connected with driveshaft between above-mentioned wheel hub and the cowling.
Above-mentioned flabellum all is unsettled blade.
Above-mentioned flabellum is or/and unsettled leaf packet contains the blade structure of curve arrangement of radiation.
Above-mentioned flabellum or/and unsettled blade along the circumferential direction be distributed as the not layout of five equilibrium angle.
Above-mentioned flabellum is or/and unsettled blade in axial direction includes different plane of rotations.
Above-mentioned flabellum is or/and unsettled leaf packet contains the different angles of attack that becomes a mandarin.
Above-mentioned flabellum is or/and unsettled leaf packet contains the different angles of attack that go out to flow.
The purposes of above-mentioned axial-flow fluid drive unit is fan or fluid pump.
The advantage that the present invention gives prominence to compared to existing technology is: adopt unsettled blade structure, make a concession out some axial inlet aisle spares owing to having at least partial blade and wheel hub not to be connected, can effectively increase accordingly the flow that passes through of fluid working substance, thereby improve the transfer efficiency of device; In addition, because unsettled blade is much shorter than traditional flabellum, quality that accordingly can alleviator and reduce the rotary inertia of device, thereby economical with materials and reduce the chance that fatigue ruption appears in the device live axle; Also have, owing to there is blade structure different in size, so that blade is no longer uniform for the action rule of blade to action rule or the working medium of working medium, thereby the result can the establishment resonance phenomenon reduces noise and improves the functional reliability of device.
Description of drawings
Fig. 1 is that the axle of a kind of axial-flow fluid drive unit of the present invention is surveyed schematic representation;
Fig. 2 is the axial direction projection view of a kind of axial-flow fluid drive unit of the present invention shown in Figure 1;
Fig. 3 be the blade of Fig. 2 blade at circumferential section M-M place become a mandarin the angle of attack with go out to flow the sign schematic representation of the angle of attack;
Fig. 4 is the schematic representation that a kind of axial-flow fluid drive unit of the present invention includes driveshaft;
Fig. 5 is the schematic representation that the whole flabellums of a kind of axial-flow fluid drive unit of the present invention are unsettled blade.
Embodiment
The invention will be further described with specific embodiment for the below, referring to Fig. 1-5:
A kind of axial-flow fluid drive unit, it comprises wheel hub 1, flabellum 2 and cowling 3, wherein flabellum 2 adopts radial being arranged between wheel hub 1 and the cowling 3, wheel hub 1, flabellum 2 and cowling 3 be synchronous rotary together, the strip of sheet blade of described flabellum 2 for having one fixed width, flabellum 2 has certain inclination angle with its plane of rotation and produces axial driving force with convection cell working medium; Characteristic of the present invention is: be provided with unsettled blade 4, cantilever structure is adopted in the inner of described unsettled blade 4, the outer end of unsettled blade 4 and cowling 3 be fastenedly connected or with cowling 3 making that is structure as a whole; Cowling 3 can be that loop-like structure (as depicted in figs. 1 and 2) also can be open loop shape structure (not shown), wherein take loop-like structure as best, the transverse section of cowling 3 can be various shapes, and cowling 3 can play the effect of increase rigidity and transferring power, can also convection cell working medium produce certain guiding function in case of necessity; It is to be noted, said unsettled blade 4 and flabellum 2 all are referred to as blade among the present invention, wherein so-called flabellum 2 is the traditional common blade that all is connected with wheel hub 1 and cowling 3, and so-called unsettled blade 4 is to refer to be connected with cowling 3 but with wheel hub 1 direct-connected blade does not occur, no matter unsettled blade 4 or flabellum 2 they all have the function of similar driving fluid working medium, unsettled blade 4 also has certain inclination angle with its plane of rotation; Annexation does not occur owing to have unsettled blade 4 with wheel hub 1 in the present invention, thereby makes a concession out some axial inlet channel cross-sectional area A, therefore can effectively increase the flow that passes through of fluid working substance, thereby can improve the transfer efficiency of device; In addition, the present invention is owing to adopt the topology layout of unsettled blade 4, therefore all adopt the topology layout of flabellum 2 to compare the effectively quality of alleviator with tradition, particularly can reduce the rotary inertia of device, so therefore its twisting inertia moment to the effect of device live axle (not shown) also reduce, the result is conducive to reduce the chance that fatigue ruption appears in live axle, this point is very important for some fan of frequent starting-intermittent cycle work such as turn round-stop or pump, and undoubtedly adopting unsettled blade 4 structures can also economical with materials; The present invention is owing to have blade different in size, thereby so that blade is no longer uniform to the action rule of blade to action rule or the working medium of working medium, the result can suppress resonance phenomenon effectively, and therefore reduces the functional reliability of noise and raising device.Need to prove, can adopt the unsettled blade 4 of unequal length specification, the effect that suppresses like this resonance can be better.Need to prove in addition, can between wheel hub 1 and cowling 3, driveshaft 5 be set, described driveshaft 5 is the roofbolt shape, the rotating power or the independence that come from wheel hub 1 this moment pass to cowling 3 or pass to cowling 3 via driveshaft 5 and flabellum 2 via driveshaft 5, drive unsettled blade 4 by cowling 3 at last again and rotate.Under the prerequisite that is provided with driveshaft 5, all flabellums 2 all can be designed to unsettled blade 4 structures, the axial inlet channel cross-sectional area A that this moment, unsettled blade 4 was made a concession out will be larger, and this means can be by the fluid working substance of larger flow.In order to obtain better hydrokinetics effect, can be with flabellum 2 or/and unsettled blade 4 partly or entirely be designed to the blade (not shown) of curve arrangement of radiation, that is blade structure of the present invention can not be confined to the radially layout of shape.In addition, for the resonance phenomenon of restraining device better, can blade distribution along the circumferential direction be set to the not layout (not shown) of five equilibrium angle; Blade in axial direction is set to the generation that the layout of same plane of rotation not also can suppress resonance phenomenon, such as unsettled blade 4 all being arranged on the plane of rotation and other flabellums 2 all are arranged in (not shown) on another plane of rotation, need to prove especially, the plane of rotation of said certain blade is a general reference among the present invention, and its meaning is this blade its inswept rotary space after finishing a complete revolution job; As everyone knows, the action effect impact of the inclination degree convection cell working medium of blade is very large, being reflected on the structural parameter is exactly the angle of attack θ and to go out to flow the relationship between efficiency of angle of attack β fluid delivery close of becoming a mandarin of blade, corresponding each working speed n exists the angle of attack θ and go out to flow angle of attack β so that the transfer efficiency of device is best of becoming a mandarin of certain limit numerical value generally speaking, the angle of attack θ and best to go out to flow angle of attack β far away then produce easily the phenomenon such as serious eddy current, surge and cause transfer efficiency variation even infringement device if off-target becomes a mandarin; Among the present invention (referring to Fig. 3), the so-called angle of attack θ that becomes a mandarin refers to that become a mandarin tangent line and this blade inlet place blade of the Leaf Conductance stream interface B of blade inlet place revolve that velocity attitude forms facing the wind angle or be called the angle that becomes a mandarin, so-calledly go out to flow go out to flow tangent line and this blade exit place blade that angle of attack β refers to the Leaf Conductance stream interface B of blade exit place and revolve the air-supply angle that velocity attitude forms or be called the stream angle, angle and go out to flow angle and can characterize with Fig. 3 becomes a mandarin: the generalized section (referring to Fig. 2) that Figure 3 shows that the M-M direction that certain blade blocks along certain circumference L, wherein circumference L is coaxial layout with the spin axis O of the live axle of device, fluid is P point and exit point is the Q point along guide face B entrance on this moment this blade section, obviously blade P point and speed that Q is ordered be v and with the sense of rotation consistent (v is said velocity of moving space in the theoretical mechanics) of blade, P is ordered enters streamline and points to and enter blade and Q order goes out that streamline breaks away from and the outflow blade, the angle of attack θ that becomes a mandarin that usually P is ordered is acute angle and the angle of attack β that goes out to flow that Q is ordered is the obtuse angle, usually entering in addition streamline and going out streamline is that the tolerance that in other words space line becomes a mandarin angle of attack θ and go out to flow angle of attack β is generally the three dimensional space angle, obviously in order to reduce the resonance odds, the angle of attack θ that becomes a mandarin of blade can be designed to different numerical value, such as the angle of attack θ (not shown) that becomes a mandarin that same blade design is become to include different numerical value, although perhaps same blade has the identical angle of attack θ but the angle of attack θ (not shown) that becomes a mandarin of different numerical value can be arranged between the different blade of becoming a mandarin, therewith similar also same blade design can be become include different numerical value go out to flow angle of attack β (not shown), although perhaps same blade have identical go out to flow can have between the different blade of angle of attack β different numerical value go out to flow angle of attack β (not shown).
A kind of axial-flow fluid drive unit of the present invention, its purposes is fan or fluid pump, so-called fan refers to that the working medium of its driving is mainly the material of air or other gaseous state shape, and so-called fluid pump refers to that the working medium of its driving is mainly the material of water or wet goods liquid state.
The present invention makes a concession out some axial inlet aisle spare A owing to adopt unsettled blade 4 structures owing to having at least partial blade and wheel hub 1 not to be connected, and therefore can effectively increase the flow that passes through of fluid working substance, thereby can improve the transfer efficiency of device; In addition, because unsettled blade 4 is much shorter than traditional blade, therefore alleviated the quality of device and reduced the rotary inertia of device, saved thus the material of device and reduced the chance that fatigue ruption appears in the device live axle; Also have, owing to there is blade different in size, so that blade is no longer uniform for the action rule of blade to action rule or the working medium of working medium, the result can the establishment resonance phenomenon and is therefore reduced noise and improve the functional reliability of device.
Above-described embodiment is preferred embodiment of the present invention only, is not to limit according to this protection scope of the present invention, so: all equivalences of doing according to structure of the present invention, shape, principle change, and all should be covered by within protection scope of the present invention.
Claims (10)
1. axial-flow fluid drive unit, it comprises wheel hub, flabellum and cowling, wherein flabellum adopts radial being arranged between wheel hub and the cowling, it is characterized in that being provided with unsettled blade, cantilever structure is adopted in the inner of described unsettled blade, the outer end of unsettled blade and cowling be fastenedly connected or with the cowling making that is structure as a whole.
2. a kind of axial-flow fluid drive unit according to claim 1 is characterized in that including in the described unsettled blade specification of two or more length.
3. a kind of axial-flow fluid drive unit according to claim 2 is characterized in that being connected with driveshaft between described wheel hub and the cowling.
4. a kind of axial-flow fluid drive unit according to claim 3 is characterized in that described flabellum all is unsettled blade.
5. according to claim 1 to 4 each described a kind of axial-flow fluid drive units, it is characterized in that described flabellum or/and unsettled leaf packet contains the blade structure of curve arrangement of radiation.
6. according to claim 1 to 4 each described a kind of axial-flow fluid drive units, it is characterized in that described flabellum or/and unsettled blade along the circumferential direction be distributed as the not layout of five equilibrium angle.
7. according to claim 1 to 4 each described a kind of axial-flow fluid drive units, it is characterized in that described flabellum or/and unsettled blade in axial direction includes different plane of rotations.
8. according to claim 1 to 4 each described a kind of axial-flow fluid drive units, it is characterized in that described flabellum or/and unsettled leaf packet contains the different angles of attack that becomes a mandarin.
9. according to claim 1 to 4 each described a kind of axial-flow fluid drive units, it is characterized in that described flabellum or/and unsettled leaf packet contains the different angles of attack that go out to flow.
10. according to claim 1 to 4 each described a kind of axial-flow fluid drive units, its purposes is fan or fluid pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210459006.6A CN102966591B (en) | 2012-11-14 | 2012-11-14 | Axial flow type fluid driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210459006.6A CN102966591B (en) | 2012-11-14 | 2012-11-14 | Axial flow type fluid driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102966591A true CN102966591A (en) | 2013-03-13 |
| CN102966591B CN102966591B (en) | 2015-01-21 |
Family
ID=47796947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210459006.6A Active CN102966591B (en) | 2012-11-14 | 2012-11-14 | Axial flow type fluid driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102966591B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285633A (en) * | 2013-06-13 | 2013-09-11 | 安徽国祯环保节能科技股份有限公司 | Stirring impeller of sand removing machine in vortex-type grit chamber |
| CN106208522A (en) * | 2016-07-28 | 2016-12-07 | 芜湖杰诺瑞汽车电器系统有限公司 | A kind of automobile current generator |
| CN106286350A (en) * | 2016-11-04 | 2017-01-04 | 广州市隧成建业物业发展有限公司 | Special fan |
| WO2021181025A1 (en) * | 2020-03-13 | 2021-09-16 | Valeo Systemes Thermiques | Ventilation system for an engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6468037B1 (en) * | 1999-08-06 | 2002-10-22 | American Cooling Systems, Llc | Fan clutch with central vanes to move air to fan blades |
| US6488472B1 (en) * | 2000-01-28 | 2002-12-03 | Seiko Epson Corporation | Axial fan, centrifugal fan, and electronic equipment employing one of these fans |
| CN2549227Y (en) * | 2002-05-14 | 2003-05-07 | 李国良 | Blade base of fan |
| CN1587714A (en) * | 2004-07-19 | 2005-03-02 | 吴伟 | Low noise high pressure centrifugal fan |
| EP1813820A1 (en) * | 2006-01-27 | 2007-08-01 | Faurecia Cooling Systems | Automotive fan and associated front unit |
| CN101008401A (en) * | 2006-01-26 | 2007-08-01 | 赵汉高 | Combined type fan flabellum with low noise |
| CN202914371U (en) * | 2012-11-14 | 2013-05-01 | 浙江鸿友压缩机制造有限公司 | Axial-flow type fluid driving device |
-
2012
- 2012-11-14 CN CN201210459006.6A patent/CN102966591B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6468037B1 (en) * | 1999-08-06 | 2002-10-22 | American Cooling Systems, Llc | Fan clutch with central vanes to move air to fan blades |
| US6488472B1 (en) * | 2000-01-28 | 2002-12-03 | Seiko Epson Corporation | Axial fan, centrifugal fan, and electronic equipment employing one of these fans |
| CN2549227Y (en) * | 2002-05-14 | 2003-05-07 | 李国良 | Blade base of fan |
| CN1587714A (en) * | 2004-07-19 | 2005-03-02 | 吴伟 | Low noise high pressure centrifugal fan |
| CN101008401A (en) * | 2006-01-26 | 2007-08-01 | 赵汉高 | Combined type fan flabellum with low noise |
| EP1813820A1 (en) * | 2006-01-27 | 2007-08-01 | Faurecia Cooling Systems | Automotive fan and associated front unit |
| CN202914371U (en) * | 2012-11-14 | 2013-05-01 | 浙江鸿友压缩机制造有限公司 | Axial-flow type fluid driving device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285633A (en) * | 2013-06-13 | 2013-09-11 | 安徽国祯环保节能科技股份有限公司 | Stirring impeller of sand removing machine in vortex-type grit chamber |
| CN106208522A (en) * | 2016-07-28 | 2016-12-07 | 芜湖杰诺瑞汽车电器系统有限公司 | A kind of automobile current generator |
| CN106208522B (en) * | 2016-07-28 | 2019-04-23 | 芜湖杰诺瑞汽车电器系统有限公司 | A kind of automobile current generator |
| CN106286350A (en) * | 2016-11-04 | 2017-01-04 | 广州市隧成建业物业发展有限公司 | Special fan |
| CN106286350B (en) * | 2016-11-04 | 2019-03-05 | 广州市隧成建业物业发展有限公司 | Special fan |
| WO2021181025A1 (en) * | 2020-03-13 | 2021-09-16 | Valeo Systemes Thermiques | Ventilation system for an engine |
| FR3108065A1 (en) * | 2020-03-13 | 2021-09-17 | Valeo Systemes Thermiques | ENGINE VENTILATION SYSTEM |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102966591B (en) | 2015-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5004476B2 (en) | Extraction of air from the tip of the rotor wheel of a high-pressure compressor in a turbojet | |
| CN104204444B (en) | Turbocharger vanes and the turbocharger for being combined with the turbocharger vanes with contour edge relief | |
| CN101688541B (en) | Compressor | |
| US9897093B2 (en) | Bearing cooling flow and energy recovery systems | |
| RU2598970C2 (en) | Bladed element for turbo-machine and turbo-machine itself | |
| US20060153673A1 (en) | Turbomachine exerting dynamic influence on the flow | |
| FI122540B (en) | Radiaalisiipipyörä | |
| CN104838149B (en) | Centrifugal compressor | |
| CN102966591B (en) | Axial flow type fluid driving device | |
| US20150260042A1 (en) | Axial Flow Machine | |
| CN103857880B (en) | Turbomachine compressor blade and comprise turbine compressor machine stator and the turbine of this blade | |
| JP6499636B2 (en) | Vane arrangement with alternating vanes with different trailing edge profiles | |
| US10502076B2 (en) | Inter-turbine ducts with flow control mechanisms | |
| EP2957443A1 (en) | Outdoor cooling unit for air conditioning device for vehicle | |
| CN102345638A (en) | Diagonal flow fan and air conditioner equipped with the diagonal flow fan | |
| JP2016512586A5 (en) | ||
| CN202914371U (en) | Axial-flow type fluid driving device | |
| JP6240763B2 (en) | Rotor for thermal turbomachine | |
| JP2010001874A (en) | Turbine impeller, radial turbine, and supercharger | |
| US20150063994A1 (en) | Scroll tongue part and rotary machine including the same | |
| JP6763803B2 (en) | Centrifugal rotary machine | |
| JP2016050486A (en) | Fluid machinery and impeller of fluid machinery | |
| CN106460537A (en) | Turbomachine inlet nozzle for asymmetric flow, with vanes of different shapes | |
| JP6775379B2 (en) | Impeller and rotating machine | |
| JP6170513B2 (en) | Improved casing for turbomachine blisk and turbomachine with said casing |
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 |