CN108180154A - A kind of fan ripple stent - Google Patents
A kind of fan ripple stent Download PDFInfo
- Publication number
- CN108180154A CN108180154A CN201711441960.1A CN201711441960A CN108180154A CN 108180154 A CN108180154 A CN 108180154A CN 201711441960 A CN201711441960 A CN 201711441960A CN 108180154 A CN108180154 A CN 108180154A
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- Prior art keywords
- fan
- guide vane
- ripple
- air
- stent
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
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- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
- F04D29/544—Blade shapes
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- 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
- F04D29/663—Sound attenuation
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of fan ripple stents, by air-ducting ring, multiple guide vanes and spider hub composition, motor is mounted on the side of spider hub, fan blade is connect by shaft with motor and is installed on the opposite side of spider hub, fan ripple stent further includes flaring structure, flaring structure is arranged on the end of air-ducting ring, guide vane is set between flaring structure and spider hub, the inner wall line style of flaring structure is is obliquely installed, ripple denoising structure is set at guide vane rear, ripple denoising structure is made of at least one set of wave crest and trough, every group of wave crest and trough are set each along guide vane rear to the up-front direction of guide vane.The fan ripple stent of the present invention can not only play the role of supporting motor installation, but also carry out corrugated design on guide vane, carry out rectification to fan outlet air, reduce fan eddy current loss, to improve fan efficiency, reduce wideband eddy current crack.
Description
Technical field
The present invention relates to fan apparatus fields, and in particular to a kind of fan ripple stent.
Background technology
In the industries such as existing bus automobile and heat radiation of electrical apparatus, to avoid electronic component temperature is excessively high from leading to electronic equipment work
Make exception, need to radiate to electronic equipment, common heat dissipation equipment is fan assembly.In fan assembly, blower tray
Primarily serve the installation of support fan electromotor and the effect of connection fan.Guide vane on blower tray is simple in structure, is mostly
The flat bracket extended in a radial direction, in fan rotation process, by guide vane, air-flow can be along leading for the air-flow of generation
Trailing edge outlet air is flowed, air-flow separation is generated, does not play guide functions, increase fan wideband eddy current crack, lead to fan efficiency
Low, noise is high.It is usually that jagged structure is set at the rear of fan blade in the prior art, air-flow is made to flow through serrated face
When, air-flow can collect to sawtooth convex surface, reduce the vortex separation on the suction surface of fan blade, reduce fan wideband vortex and make an uproar
Sound.But in fan rotation process, since guide vane cannot play guide functions, fan cannot be made by only relying on fan blade
Noise be significantly reduced.Flaring structure in the blower tray of the prior art is usually the end for being directly installed on air-ducting ring
Portion, the inner wall of flaring structure and the inner wall of air-ducting ring are in plumbness, at the inner wall of flaring structure and the inner wall of air-ducting ring
In one plane of figure, it is excessive to be easy to cause fan outlet air velocity, and then further increases noise.
Application No. is the 200820162494.3 patent fan blade of wind turbine " be used for ", the patent include blade and with electricity
The wheel that the output shaft of machine is connected is firm, and fairshaped wing flap is provided on the blade positioned at exterior string position, the wing flap from
5 one 10% position that blade tip extends into outer chord length starts to extend to the rear end of exterior string, and the rear of every blade uses energy
Reduce the zigzag of Rotation Noise.The broached-tooth design set on trailing edge, the vortex that can be effectively reduced at blade exit
Stream loss, enable reasonably to avoid surge area during operation, improve the aerodynamic quality of blade, make impeller rotation when noise more
It is low.But it cannot solve the problems, such as that guide vane detaches air-flow to increase fan wideband eddy current crack.
Application No. is the patents " fan shroud component " of CN201480035414.6, disclose a kind of anti-vortex sawtooth fan
Cover assembly, it is anti-vortex sawtooth along the inner peripheral surface presumptive area of air supplying part and with the blade tip of fan or fan ring end
Arrange and formed in the form of sawtooth with maintaining preset space length, can the effectively less air transferred generate and be vortexed and thus
The noise of generation.The broached-tooth design of the invention is arranged on air supplying part inner peripheral surface, and structure is complex, and installation process is inconvenient, and
And without solving because the wideband eddy current crack noise problem generated during guide vane.
Invention content
In order to solve the above technical problem, the present invention provides a kind of fan ripple stents, and the fan ripple stent is not only
It can play the role of supporting motor installation, but also carry out corrugated design on guide vane, rectification is carried out to fan outlet air,
Fan eddy current loss is reduced, to improve fan efficiency, reduces wideband eddy current crack.
For achieving the above object, the technical solution that the present invention takes is as follows：
A kind of fan ripple stent is made of air-ducting ring, multiple guide vanes and spider hub, and motor is mounted on the branch
The side of frame wheel hub, fan blade is connect by shaft with the motor and is installed on the opposite side of the spider hub, described
Stent further includes flaring structure, and the flaring structure is arranged on the end of the air-ducting ring, and the guide vane is set to described
Between flaring structure and the spider hub, ripple denoising structure is set at the guide vane rear.
Preferably, the ripple denoising structure is made of at least one set of wave crest and trough, wave crest described in every group and the wave
Paddy is set each along the guide vane rear to the up-front direction of the guide vane；The ripple denoising structure along blade tip extremely
Spacing is in equal distribution, uneven equal distribution, the distribution of ascending gradual change between the adjacent trough in blade root direction or wave crest
Or one kind in descending progressive distribution.Air-flow can easily generate when passing through guide vane along guide vane rear outlet air
Air-flow detaches, and increases fan eddy current crack, but due to setting ripple denoising structure on guide vane, air-flow can oriented wave when flowing out
Recess portion position aggregation tendency can play the role of postponing the effect that air-flow comes off, and being finally reached reduces fan wideband eddy current crack.
Preferably, the distance between two neighboring described wave crest or the distance between the two neighboring trough are wavelength a,
The guide vane length is A, and the relationship between a and A is：0<a≤0.5A.
Preferably, the angled manner of the guide vane for straight incline or bending tilt in one kind, the fan leaf
The inclined direction of piece is opposite with the guide vane inclined direction.Its purpose is to reduce leaf of the guide vane along the high section of leaf
Type loses and secondary flow loss, improves fan efficiency.
Preferably, the cross-sectional shape of the guide vane radially is aerofoil section, equal thickness plate section, ellipse section
One kind in face or round rectangle section.
Preferably, the cross-sectional shape of the guide vane radially is aerofoil section, the adjacent trough and the wave
Section aerofoil profile air stream outlet angle on peak is respectively b1, b2, and relationship is：b1>b2；The folder that two air stream outlet angles are formed
Angle is b, and the angle b is ranging from：0.5°≤b≤10°.Fail to play noise reduction, the excessive high speed of angle if angle is too small
Howling can be caused during rotation.
Preferably, retainer plate, the retainer plate and the branch are provided between the flaring structure and the spider hub
Frame wheel hub is arranged concentrically, and the retainer plate is mounted on the guide vane to fix the guide vane.
Preferably, to be obliquely installed, angled manner tilts the flaring structure inner wall for straight incline or curve, tilts
Beginning is connected with air-ducting ring internal face.Being obliquely installed for flaring structure can make the dynamic pressure of fan be converted into static pressure, to improve wind
Static pressure efficiency is fanned, reduces fan outlet air velocity, and then has the function that reduce noise.
Preferably, the curve tilts initiating terminal and the air-ducting ring internal face is tangent；The inclination angle of the straight incline
Degree is ranging from：3°≤θ≤15°.
Preferably, the inclined height of the flaring structure inner wall be H, air-ducting ring height be h, relationship for 0.1h≤H≤
0.6h。
Relative to the prior art, the present invention achieves beneficial technique effect：
The fan ripple stent of the present invention can not only play the role of supporting motor installation, but also carried out stent and led
Wind designs, by setting ripple denoising structure, direction of the ripple denoising structure along blade tip to blade root point at guide vane rear
Cloth.Ripple denoising structure is made of at least one set of wave crest and trough, before every group of wave crest and trough are each along trailing edge to blade
The direction setting of edge.Air-flow can easily generate air-flow separation, increase wind when passing through guide vane along guide vane rear outlet air
Fan eddy current crack, but due on guide vane set ripple denoising structure, air-flow flow out when can oriented trough position aggregation tendency,
It can play the role of postponing the effect that air-flow comes off, being finally reached reduces fan wideband eddy current crack.
Guide vane is obliquely installed profile loss and the secondary flow loss that can reduce guide vane along the high section of leaf.It is right
The quantity of guide vane is limited, and not only can guarantee blower tray support strength, but also preferably fan outlet air can be led
Stream reduces fan eddy current loss, improves fan efficiency, reduces wideband eddy current crack.
The present invention sets retainer plate on guide vane, can play the role of fixed guide vane, prevent guide vane
Vibrations generate noise, it is ensured that during fan running, carry out gas distribution that guide vane can consolidate.Flaring structure
Being obliquely installed for inner wall makes the dynamic pressure of fan be converted into static pressure, improves the static pressure efficiency of fan, reduces fan outlet air-flow
Speed, and then have the function that reduce noise.
Description of the drawings
Fig. 1 is the overlooking the structure diagram of fan ripple stent of the present invention；
Fig. 2 is the present invention looks up structural representation of fan ripple stent of the present invention；
Fig. 3 is the sectional view of fan ripple stent of the present invention；
Fig. 4 is the bottom view of fan ripple stent of the present invention；
Fig. 5 is the vertical view of fan of the present invention；
Fig. 6 is the bottom view of fan of the present invention；
Fig. 7 is the partial structurtes of guide vane of the present invention and related angle schematic diagram；
Fig. 8 is air stream outlet angle schematic diagram in guide vane section of the present invention；
Fig. 9 is the partial schematic diagram of guide vane of the present invention.
Reference numeral：
1. fan ripple stent；11. air-ducting ring；12. guide vane；13. spider hub；14. flaring structure；15. ripple
Denoising structure；121. blade root；122. blade tip；123. guide vane rear；124. guide vane leading edge；1211. blade root leading edge point；
1212. blade root rear points；1221. blade tip leading edge point；1222. blade tip rear points；2. fan blade；3. motor.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments to the present invention
It is further elaborated, but the scope of protection of present invention is not limited to following specific embodiments.
In the first embodiment of the present invention, as shown in Fig. 1,2,5,6, a kind of fan ripple stent 1, by air-ducting ring 11, more
A guide vane 12 and spider hub 13 form, and motor 3 is mounted on the side of spider hub 13, and fan blade 2 passes through with motor 3
Shaft connects and is installed on the opposite side of spider hub 13, and fan ripple stent 1 further includes flaring structure 14, and flaring structure 14 is set
It puts in the end of air-ducting ring 11, guide vane 12 is set between flaring structure 14 and spider hub 13, spider hub 13, flaring
Structure 14, air-ducting ring 11 are arranged concentrically, and motor 3 is placed in the same side with flaring structure 14, and fan blade 2 is then placed in air-ducting ring 11
In.Retainer plate is provided between flaring structure 14 and spider hub 13, retainer plate is arranged concentrically with spider hub 13, retainer plate peace
Fixed guide vane 12 is used on guide vane 12.The present invention sets retainer plate on guide vane 12, can play solid
Determine the effect of guide vane 12, prevent the vibrations of guide vane 12 from generating noise, it is ensured that during fan running, water conservancy diversion leaf
The carry out gas distribution that piece 12 can consolidate.
Ripple denoising structure 15 is set at guide vane rear 123.Ripple denoising structure 15 is by least one set of wave crest and wave
Paddy is formed, and every group of wave crest and trough are set each along the direction of guide vane rear 123 to guide vane leading edge 124.Air-flow passes through
Air-flow separation can be easily generated along 123 outlet air of guide vane rear when crossing guide vane 12, increase fan eddy current crack, but
Due to setting ripple denoising structure 15 on guide vane 12, when air-flow flows out can oriented trough position aggregation tendency, can play and prolong
The effect that slow air-flow comes off, is finally reached the effect for reducing fan wideband eddy current crack.
As shown in figure 9, ripple denoising structure 15 is along blade tip 122 to spacing between the adjacent trough in 121 direction of blade root or wave crest
In equal distribution or uneven equal distribution.The distance between two neighboring wave crest or the distance between two neighboring trough are wavelength a,
12 length of guide vane is A, and the relationship between a and A is：0<a≤0.5A.The present embodiment along blade tip 122 to 121 direction of blade root
Wave crest equidistantly distributed in ripple denoising structure 15, i.e., the spacing between two neighboring wave crest is equal, and along blade tip 122 to
Trough in 121 direction ripple denoising structure 15 of blade root is also equidistantly distributed, i.e., the spacing phase between two neighboring wave trough
Deng.The distance between preferred two wave crests of the present embodiment or the distance between two neighboring trough are wavelength a and length of blade A
Between relationship be a=0.2A.
The angled manner of guide vane 12 is straight incline, the inclined direction of fan blade 2 and 12 side of inclination of guide vane
To opposite.Its purpose is to reduce profile loss and secondary flow loss of the guide vane 12 along the high section of leaf, fan is improved
Efficiency.
As shown in fig. 7, the cross-sectional shape of guide vane 12 has a certain impact to the flow resistance of air-flow, in this implementation
In example, the cross sectional shape for being preferably provided with guide vane 12 is aerofoil section.The section established angle of guide vane 12 is before section
The blade root leading edge point 1211 and leaf of angle, wherein 121 section of blade root that line between edge point and rear point is formed with horizontal line
The line of root rear point 1212 and horizontal angle are blade root established angle e2,1221 He of blade tip leading edge point in 122 section of blade tip
The line of blade tip rear point 1222 and horizontal angle are blade tip established angle e1.Since the leaf of guide vane 12 is high different, leaf
The established angle of root 121 and blade tip 122 is unequal, and the declinate of formation is torsional angle c, and the angular range of torsional angle c is：0 °≤c≤20 °,
The wherein blade tip established angle e1 of guide vane 12 is more than blade root established angle e2, and fan 2 can be made to run the gas that outlet air generates in this way
Stream is evenly distributed by stream pressure during guide vane 12, avoids generating pressure differential and air-flow being caused to detach, reaches reduction fan
Device wideband eddy current crack improves the effect of working efficiency.
As shown in figure 8, since the cross-sectional shape of guide vane 12 radially is aerofoil section, in ripple denoising structure 15
Adjacent trough and wave crest on section aerofoil profile air stream outlet angle be respectively b1, b2, relationship is：b1>b2；Two air stream outlets
The angle that angle is formed is b, and angle b is ranging from：0.5°≤b≤10°.Fail to play noise reduction, angle mistake if angle is too small
Howling can be caused during big high speed rotation.
In blower tray 1, the quantity of guide vane 12 can not only have an impact the support strength of fan assembly, can also
The outlet air heat dissipation effect and fundamental frequency noise of fan assembly are had an impact.In the present embodiment, 12 quantity of guide vane be n1, wind
2 quantity of fan leaf is n, and relationship preferably between the two is：1.4n<n1<4n, n1 ≠ 2n, 3n.It can ensure fan branch in this way
The support strength of frame 1, and can water conservancy diversion preferably be carried out to the outlet air of fan blade 2.In order to avoid 2 fundamental frequency noise of fan blade swashs
Change, 12 quantity of guide vane cannot be the integral multiple of 2 quantity of fan blade.
As shown in Figures 3 and 4, for 14 inner wall of flaring structure of the invention to be obliquely installed, angled manner is straight incline or song
Line tilts, and tilts initiating terminal and is connected with 11 internal face of air-ducting ring, curve tilts initiating terminal and 11 internal face of air-ducting ring is tangent；Straight line
Inclined range of tilt angles is：3°≤θ≤15°.The inclined height of 14 inner wall of flaring structure is H, and 11 height of air-ducting ring is h,
Its relationship is 0.1h≤H≤0.6h.Air-flow is after air-ducting ring 11 enters flaring structure 14, diameter increase, since there are sizes
Mutation, dynamic pressure is made to become static pressure.Being obliquely installed for 14 inner wall of flaring structure makes the dynamic pressure of fan be converted into static pressure, improves wind
The static pressure efficiency of fan reduces fan outlet air velocity, noise reduction is made further to be promoted.
As shown in figure 9, in the second embodiment of the present invention, along blade tip 122 to 121 direction ripple denoising structure 15 of blade root
In wave crest equidistantly distributed, i.e., the spacing between two neighboring wave crest is equal, and along blade tip 122 to 121 direction wave of blade root
Trough equidistantly distributed in line denoising structure 15, i.e., the spacing between two neighboring wave trough are equal.The present embodiment is preferred
The distance between two wave crests or the distance between two neighboring trough are that the relationship between wavelength a and length of blade A is a=
0.1A.Ripple on the present embodiment guide vane is intensive to be doubled, and gathers when being flowed through to air-flow at guide vane rear 123
It is more obvious to collect effect, noise can be made further to be reduced.
In the third embodiment of the present invention, ripple denoising structure 15 includes at least two groups of wave crests and trough, along blade tip 122
The distance between two neighboring wave crest into 121 direction ripple denoising structure 15 of blade root gradually increases, along blade tip 122 to blade root
The distance between two neighboring trough in 121 direction ripple denoising structures 15 gradually increases.
In the fourth embodiment of the present invention, ripple denoising structure 15 includes at least two groups of wave crests and trough, along the leaf
The distance between two neighboring described wave crest in ripple denoising structure 15 described in point 122 to 121 direction of blade root is gradually reduced, edge
The distance between two neighboring trough in blade tip 122 to 121 direction ripple denoising structure 15 of blade root is gradually reduced.
In the fifth embodiment of the present invention, 12 angled manner of guide vane can also be that bending tilts, guide vane 12
The line of the section rear point different along the high direction of leaf is curve, and curve can be one kind in parabola or circular arc line.
In the sixth embodiment of the present invention, the cross-sectional shape of guide vane 12 radially can also be that equal thickness plate is cut
One kind in face, elliptic cross-section or round rectangle section, the present embodiment is to the cross section of the guide vane 12 of first embodiment
Shape has made conventional modification, and Figure of description is not shown.
The fan ripple stent 1 of the present invention can not only play the role of motor 3 being supported to install, but also carried out stent
Wind-guiding designs, by setting ripple denoising structure 15 at guide vane rear 123, ripple denoising structure 15 along blade tip 122 to
The directional spreding of blade root 121.Ripple denoising structure 15 is made of at least one set of wave crest and trough, every group of wave crest and trough each along
Guide vane rear 123 to the direction of guide vane leading edge 124 is set.Air-flow can be along guide vane when passing through guide vane 12
123 outlet air of rear easily generates air-flow separation, increases fan eddy current crack, but due to setting ripple noise reduction on guide vane 12
Structure 15, when air-flow flows out can oriented trough position aggregation tendency, can play and postpone the effect that comes off of air-flow, be finally reached reduction
The effect of fan wideband eddy current crack.Guide vane 12 is obliquely installed the blade profile damage that can reduce guide vane 12 along the high section of leaf
Secondary flow of becoming estranged is lost.The quantity of guide vane 12 is limited, not only can guarantee blower tray support strength, but also can be more
Water conservancy diversion is carried out to fan outlet air well, reduces fan eddy current loss, improves fan efficiency, reduces wideband eddy current crack.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is changed.Therefore, the invention is not limited in specific embodiment disclosed and described above, to the one of invention
A little modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, it although is used in this specification
Some specific terms, but these terms are merely for convenience of description, do not form any restrictions to invention.
Claims (10)
1. a kind of fan ripple stent is made of air-ducting ring, multiple guide vanes and spider hub, motor is mounted on the stent
The side of wheel hub, fan blade are connect by shaft with the motor and are installed on the opposite side of the spider hub, feature
It is, the stent further includes flaring structure, and the flaring structure is arranged on the end of the air-ducting ring, and the guide vane is set
It is placed between the flaring structure and the spider hub, ripple denoising structure is set at the guide vane rear.
2. a kind of fan ripple stent according to claim 1, which is characterized in that the ripple denoising structure is by least one
Before group wave crest and trough composition, wave crest described in every group and the trough are each along the guide vane rear to the guide vane
The direction setting of edge；The ripple denoising structure is along blade tip to spacing between the adjacent trough in blade root direction or wave crest in equalization
One kind in distribution, uneven equal distribution, the distribution of ascending gradual change or descending progressive distribution.
3. a kind of fan ripple stent according to claim 2, which is characterized in that between the two neighboring wave crest away from
From or the distance between the two neighboring trough be wavelength a, the guide vane length is A, and the relationship between a and A is：0<
a≤0.5A。
4. a kind of fan ripple stent according to claim 1, which is characterized in that the angled manner of the guide vane is
One kind in straight incline or bending inclination, the inclined direction of the fan blade are opposite with the guide vane inclined direction.
A kind of 5. fan ripple stent according to claim 4, which is characterized in that the guide vane radially transversal
Face shape is one kind in aerofoil section, equal thickness plate section, elliptic cross-section or round rectangle section.
A kind of 6. fan ripple stent according to claim 2, which is characterized in that the guide vane radially transversal
Face shape is aerofoil section, and the section aerofoil profile air stream outlet angle on the adjacent trough and the wave crest is respectively b1, b2, is closed
It is to be：b1>b2；The angle that two air stream outlet angles are formed is b, and the angle b is ranging from：0.5°≤b≤10°.
7. a kind of fan ripple stent according to claim 1, which is characterized in that the flaring structure and the rack wheel
Retainer plate is provided between hub, the retainer plate is arranged concentrically with the spider hub, and the retainer plate is mounted on the water conservancy diversion
It is used to fix the guide vane on blade.
8. a kind of fan ripple stent according to claim 1, which is characterized in that the flaring structure inner wall is set to tilt
It puts, angled manner is tilted for straight incline or curve, is tilted initiating terminal and is connected with air-ducting ring internal face.
9. a kind of fan ripple stent according to claim 8, which is characterized in that the curve tilt initiating terminal with it is described
Air-ducting ring internal face is tangent；The range of tilt angles of the straight incline is：3°≤θ≤15°.
A kind of 10. fan ripple stent according to claim 8, which is characterized in that the inclination of the flaring structure inner wall
It is highly H, air-ducting ring height is h, and relationship is 0.1h≤H≤0.6h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441960.1A CN108180154B (en) | 2017-12-27 | 2017-12-27 | Fan ripple support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441960.1A CN108180154B (en) | 2017-12-27 | 2017-12-27 | Fan ripple support |
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| Publication Number | Publication Date |
|---|---|
| CN108180154A true CN108180154A (en) | 2018-06-19 |
| CN108180154B CN108180154B (en) | 2020-02-21 |
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| CN201711441960.1A Active CN108180154B (en) | 2017-12-27 | 2017-12-27 | Fan ripple support |
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Cited By (6)
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| CN108979967A (en) * | 2018-09-30 | 2018-12-11 | 浙江理工大学 | The vehicle-mounted small wind-driven generator of road vacuum sweeper and its electricity-generating method |
| CN109681908A (en) * | 2019-01-21 | 2019-04-26 | 襄阳市胜合燃力设备有限公司 | Low nitrogen high thrust burner |
| CN110594200A (en) * | 2019-09-09 | 2019-12-20 | 苏州佳世达光电有限公司 | Air guide structure and electronic equipment applying same |
| CN112431798A (en) * | 2020-11-23 | 2021-03-02 | 吉林大学 | Low-noise rotating-static fan system |
| US11215191B2 (en) | 2018-12-28 | 2022-01-04 | Nidec Corporation | Blower |
| WO2022062832A1 (en) * | 2020-09-25 | 2022-03-31 | 依必安派特风机(上海)有限公司 | Air guide ring of axial flow fan and axial flow fan |
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| CN108979967A (en) * | 2018-09-30 | 2018-12-11 | 浙江理工大学 | The vehicle-mounted small wind-driven generator of road vacuum sweeper and its electricity-generating method |
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| CN109681908A (en) * | 2019-01-21 | 2019-04-26 | 襄阳市胜合燃力设备有限公司 | Low nitrogen high thrust burner |
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| WO2022062832A1 (en) * | 2020-09-25 | 2022-03-31 | 依必安派特风机(上海)有限公司 | Air guide ring of axial flow fan and axial flow fan |
| CN112431798A (en) * | 2020-11-23 | 2021-03-02 | 吉林大学 | Low-noise rotating-static fan system |
| CN112431798B (en) * | 2020-11-23 | 2021-08-10 | 吉林大学 | Low-noise rotating-static fan system |
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