CN206816430U - A kind of flow generator - Google Patents
A kind of flow generator Download PDFInfo
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- CN206816430U CN206816430U CN201720681118.4U CN201720681118U CN206816430U CN 206816430 U CN206816430 U CN 206816430U CN 201720681118 U CN201720681118 U CN 201720681118U CN 206816430 U CN206816430 U CN 206816430U
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- blade
- segmental arc
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The flow generator of field of electrical equipment is the utility model is related to, it includes aial flow impeller, rotary shaft, speed changer and generator.The impeller includes wheel hub and multiple blades；Impeller is fixedly connected by its wheel hub with rotary shaft；Rotary shaft is connected by speed changer with generator.Blade includes leading edge, trailing edge, outer rim and inner edge.Each blade is fixedly connected on wheel hub by fastener.Blade has maximum gauge and maximal bending moment, and blade gradually broadens from radially inner side to radial outside width, and from the radially inner side of blade to radial outside, the position of maximum gauge and maximal bending moment is change in circumferential direction.The shape that can overcome blade existing for existing hydroelectric generation aial flow impeller using the impeller of the blade of this shape designs the problem of unreasonable, less efficient, so as to which corresponding impeller can significantly improve mechanical efficiency, and then corresponding flow generator is caused to improve generating efficiency 5% to 15%.
Description
Technical field
It the utility model is related to field of generating equipment, more particularly to a kind of flow generator.
Background technology
It is renewable, pollution-free, operating cost is low, is convenient for electricity with the rapid development of economy, society is to clean energy resource
The new energy demand of power peak regulation etc. is increasing.Hydroelectric generation, wind power generation, solar power generation, geothermal power generation, biological energy source hair
The use of electricity, nuclear energy power generation etc. is increasingly popularized.For hydroelectric generation, the structure of its critical component-impeller is to generating electricity
The influence of efficiency is particularly huge.Impeller is broadly divided into aial flow impeller, receded disk impeller and mixed-flow impeller.Existing waterpower hair
Electricity with aial flow impeller remain blade shape design it is unreasonable, less efficient the problem of, still have further improve and
Carry efficient space.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of higher fluid of generating efficiency
TRT, total technical concept are then to improve generating efficiency and property by the improvement of the shape of the blade to impeller therein
Energy.
Realizing the technical scheme of the utility model purpose is：Flow generator of the present utility model, including axial-flow type leaf
Wheel（Aial flow impeller is referred to as impeller below）, rotary shaft, speed changer and generator.The impeller includes wheel hub and multiple leaves
Piece.Impeller is fixedly connected by its wheel hub with rotary shaft.Rotary shaft is connected by speed changer with generator.Blade include leading edge, after
Edge, outer rim and inner edge.Each blade is fixedly connected on wheel hub by fastener, and the inner edge of each blade and the periphery of wheel hub
Side edge is touched.Blade has maximum gauge t and maximal bending moment c, and blade gradually broadens from radially inner side to radial outside width.
It is structurally characterized in that：From the radially inner side of blade to radial outside, maximum gauge t and maximal bending moment c position are in circumferential direction
On be change；Wherein maximum gauge change in location curve Vt from the radially inner side of blade to radial outside, the curve from positioned at
After the starting point starting at middle position to the front, first approach, then approached to trailing edge, last forward edge approaches to the leading edge of blade；
Maximal bending moment change in location curve Vc is from the radially inner side of blade to radial outside, and the curve is from the starting point positioned at middle part
After starting, first approached to the trailing edge of blade, rear forward edge approaches, and is then approached to trailing edge, is finally also approached to trailing edge.
Further, the leading edge of blade is made up of three sections of camber lines in radial directions, and they are being sequentially connected for leading edge
First segmental arc R1, the second segmental arc R2 and the 3rd segmental arc R3.The trailing edge of blade is in radial directions also by three sections of camber line structures
Into they are the first segmental arc R4 being sequentially connected, the second segmental arc R5 and the 3rd segmental arc R6 of trailing edge.The trailing edge of blade
First segmental arc R4 is corresponding with the first segmental arc R1 of the leading edge of blade, and by the first segmental arc R4 positioned at trailing edge of blade
Part between the first segmental arc R1 of leading edge is referred to as the first arcuate segments of blade.Second segmental arc R5 of the trailing edge of blade with
Second segmental arc R2 of the leading edge of blade is corresponding, and by blade positioned at the second segmental arc R5 of trailing edge and the second arc of leading edge
Part between shape section R2 is referred to as the second arcuate segments of blade；3rd segmental arc R6 of the trailing edge of blade and the 3rd arc of leading edge
Section R3 is corresponding, and the part between the 3rd segmental arc R6 of trailing edge and the 3rd segmental arc R3 of leading edge of blade is referred to as
3rd arcuate segments of blade.
In the first arcuate segments, from radially inner side to radial outside, maximum gauge t position is after middle starting to the front, first
Forward edge approaches, and backward trailing edge approaches；After maximal bending moment c position originates from centre, first approached to trailing edge, rear forward edge connects
Closely.In the second arcuate segments, from radially inner side to radial outside, maximum gauge t position continues to approach to trailing edge, maximal bending moment c
Position changed course trailing edge approach；In the 3rd arcuate segments, from radially inner side to radial outside, maximum gauge t position changed course leading edge
Close, maximal bending moment c position continues to approach to trailing edge.
Further, the opening direction of the 3rd segmental arc R3 of the leading edge of blade bending is towards front, namely towards preceding
The direction of edge, the opening direction of the 3rd segmental arc R6 of the trailing edge of blade bending is also towards front.
Further, the outer rim of blade is segmental arc R7, and the opening direction of segmental arc R7 bending is towards radially inner side.
Further, the flow generator is hydroelectric installation.
The utility model has positive effect：Flow generator of the present utility model at work, the leaf of its impeller
Piece is by it just facing to fluid（Water or steam）, under action of a fluid, blade drives wheel hub circumferentially to rotate, in the side of rotation
Upwards, the leading edge of blade is towards rotation direction.Because the shape of blade have passed through optimized design, for example, considering fluid
The influence to Blade Properties such as vortex formed to the impulsive force of blade surface, moment of torsion, blade surface, passes through computer software module
The parameters that plan and actual tests result obtain（Such as pressure, power conversion rate, rotating speed）Understand, compared to conventional leaf
Type, it can significantly improve the mechanical efficiency 5% to 15% of blade.
Brief description of the drawings
Fig. 1 is the structural representation of impeller of the present utility model.
Fig. 2 be Fig. 1 in blade section enlarged diagram, its shown direction be Fig. 1 F-F to.
Mark in above-mentioned accompanying drawing is as follows：Blade 1, wheel hub 2, rotary shaft 3, leading edge 4, trailing edge 5, outer rim 6, inner edge 7, middle arc
Line 8, blade centreline a, chain-dotted line b1, chain-dotted line b2, chain-dotted line b3, maximum gauge t, maximum gauge X-axis coordinate position Xt, most
Big moment of flexure c, maximal bending moment X-axis coordinate position Xc, maximum gauge change in location curve Vt, maximal bending moment change in location curve Vc.
Embodiment
The utility model provides a kind of flow generator, the utility model is made below in conjunction with the accompanying drawings further detailed
Explanation.
（Embodiment 1）
See Fig. 1, the flow generator of the present embodiment includes aial flow impeller, rotary shaft 3, speed changer and generator.Institute
Stating aial flow impeller includes wheel hub 2 and multiple blades 1（The present embodiment is 3）.Blade 1 includes leading edge 4, trailing edge 5, the and of outer rim 6
Inner edge 7.Each blade 1 is fixedly connected on the hub 2 by fastener, and the inner edge 7 of each blade 1 and the neighboring of wheel hub 2
Edge position is in contact.Impeller is fixedly connected by its wheel hub 2 with rotary shaft 3.Rotary shaft 3 is connected by speed changer with generator.
Still see Fig. 1, blade 1 is cast aluminium integral piece, or using nylon material integral piece or be to use other works
The integral piece of engineering plastics material.Leading edge 4 and trailing edge 5 being radially arranged each along wheel hub 2 of blade 1.The leading edge 4 of blade 1 is being taken turns
Hub 2 is made up of three sections of camber lines in the radial direction, and they are the first segmental arc R1, the second segmental arc that are sequentially connected of leading edge 4
R2 and the 3rd segmental arc R3, and mark R1, R2 and R3 in Fig. 1 are also represented half corresponding to each segmental arc of leading edge 4 respectively
Footpath, and radius R1>Radius R2>Radius R3.First segmental arc R1 of leading edge 4 is between inner edge 7 and chain-dotted line b3, before accounting for
The radical length of edge 4（Refer to the length of a curve for representing the leading edge 4 being radially arranged substantially along wheel hub 2）40%.The of leading edge 4
Two segmental arc R2 account for the 50% of radical length between chain-dotted line b3 and chain-dotted line b2.3rd segmental arc R3 positions of leading edge 4
Between chain-dotted line b2 and chain-dotted line b1, the 10% of radical length is accounted for, the openings of the 3rd segmental arc R3 of leading edge 4 bending
To the direction towards front, namely towards leading edge 4.
The trailing edge 5 of blade 1 is also made up of three sections of camber lines in the radial direction wheel hub 2, and they are being sequentially connected for trailing edge 5
The first segmental arc R4, the second segmental arc R5 and the 3rd segmental arc R6, and the first segmental arc R4 of trailing edge 5, the second segmental arc R5
It is corresponding with the first segmental arc R1, the second segmental arc R2 and the 3rd segmental arc R3 of leading edge 4 respectively with the 3rd segmental arc R6, and phase
Set for the center line a in Fig. 1.Mark R4, R5 and R6 in Fig. 1 are also represented corresponding to each segmental arc of trailing edge 5 respectively
Radius, and radius R4>Radius R5>Radius R6.First segmental arc R4 of trailing edge 5 is accounted between inner edge 7 and chain-dotted line b3
The 40% of the radical length of trailing edge 5.Second segmental arc R5 of trailing edge 5 is accounted for radially between chain-dotted line b3 and chain-dotted line b2
The 50% of length, the 3rd segmental arc R6 of trailing edge 5 account for the 10% of radical length between chain-dotted line b2 and chain-dotted line b1, after
The opening direction of 3rd segmental arc R6 of edge 5 bending is towards front, namely the direction towards leading edge 4, and radius R3>Radius
R6。
The outer rim 6 of blade 1 includes outer arcuate section R7, and opening direction that it bends is towards radially inner side.Shown in Fig. 2
The opening direction of the bending of the mean camber line 8 of blade 1 is towards Y-axis negative direction, namely the opening direction that bends of mean camber line 8 of blade 1
Towards the pressure face direction of blade 1.
See Fig. 2, the section such as airfoil type of blade 1 has a maximum gauge t and maximal bending moment c, blade 1 from radially inner side to
Radial outside width gradually broadens, and described width refers to the distance between leading edge 4 and trailing edge 5.See Fig. 1, can by blade 1 from
Radially inner side is divided into three regions, respectively the first arcuate segments, the second arcuate segments and the 3rd arcuate segments to radial outside.First arc
Shape area is the area that inner edge 7, the first segmental arc R1, the chain-dotted line b3 of leading edge 4 and the first segmental arc R4 of trailing edge 5 are surrounded each other
Domain, the second arcuate segments are the second segmental arc R5 of the second segmental arc R2, the chain-dotted line b2 and trailing edge 5 positioned at chain-dotted line b3, leading edge 4
Mutual area defined, the 3rd arcuate segments are chain-dotted line b2, the 3rd segmental arc R3 of leading edge 4, the of outer rim 6 and trailing edge 5
The three mutual area defined of segmental arc R6.
The maximum gauge t of blade 1 position is change in circumferential direction, and maximum gauge change in location curve Vt is from leaf
The radially inner side of piece 1 is to radial outside, and the curve is from after the starting point starting at middle position to the front, and first forward edge 4 is close, so
Backward trailing edge 5 is close, and last forward edge 4 is close.Specially：It is maximum thick from radially inner side to radial outside in the first arcuate segments
T is spent after middle starting to the front, and first forward edge 4 is close, and backward trailing edge 5 is close；In the second arcuate segments, from radially inner side to radially
Outside, maximum gauge t continue close to trailing edge 5；In the 3rd arcuate segments, from radially inner side to radial outside, maximum gauge t changed courses
Leading edge 4 is close.
Maximal bending moment c position is also change in circumferential direction, and maximal bending moment change in location curve Vc is from the footpath of blade 1
To inner side to radial outside, the curve is from after the starting of the starting point of middle part, and first close to trailing edge 5, rear forward edge 4 connects
Closely, it is then close to trailing edge 5, it is finally also close to trailing edge 5.Specially：It is outside from radially inner side to footpath in the first arcuate segments
Side, first close to trailing edge 5 after maximal bending moment c originates from centre, rear forward edge 4 is close；In the second arcuate segments, from radially inner side
To radial outside, maximal bending moment c changed course trailing edges 5 are close；In the 3rd arcuate segments, from radially inner side to radial outside, maximal bending moment c
Continue to approach to trailing edge 5, and it changes the absolute value of slope and is less than maximum gauge change in location curve Vt in the 3rd arcuate segments
Change the absolute value of slope.Maximum gauge change in location curve Vt, maximal bending moment change in location curve Vc are three arcuate segments
Each mutual junction seamlessly transits.
Flow generator impeller of the present utility model, by the optimized design of the shape to blade 1, for example, comprehensive
Close and consider fluid --- vortex that particularly water is formed to the impulsive force of blade surface, moment of torsion, blade surface etc. is to Blade Properties
Influence, pass through computer software simulation and actual tests result obtain parameters（Such as pressure, power conversion rate, rotating speed
Deng）Understand, compared to conventional blade profile, it can significantly improve the mechanical efficiency 5% to 15% of blade 1.
Above-mentioned embodiment be to explanation of the present utility model, be not to restriction of the present utility model, it is any to this practicality
Structure after new simple transformation belongs to the scope of protection of the utility model.
Claims (5)
1. a kind of flow generator, including aial flow impeller, rotary shaft（3）, speed changer and generator；The aial flow impeller
Including wheel hub（2）With multiple blades（1）；Blade（1）Including leading edge（4）, trailing edge（5）, outer rim（6）And inner edge（7）；Each blade
（1）Wheel hub is fixedly connected on by fastener（2）On, and each blade（1）Inner edge（7）With wheel hub（2）Peripheral edge portion
Position is in contact；Impeller is by its wheel hub（2）With rotary shaft（3）It is fixedly connected；Rotary shaft（3）It is connected by speed changer with generator；
Blade（1）With maximum gauge t and maximal bending moment c, blade（1）Gradually broadened from radially inner side to radial outside width；It is special
Sign is：
From blade（1）Radially inner side to radial outside, maximum gauge t and maximal bending moment c position are to become in circumferential direction
Change；Wherein maximum gauge change in location curve Vt is from blade（1）Radially inner side to radial outside, the curve is from positioned at centre
After the starting point starting at position to the front, first to blade（1）Leading edge（4）It is close, then to trailing edge（5）It is close, last forward edge
（4）It is close；Maximal bending moment change in location curve Vc is from blade（1）Radially inner side to radial outside, the curve is from positioned at centre
After the starting point starting at position, first to blade（1）Trailing edge（5）It is close, rear forward edge（4）It is close, then to trailing edge（5）Connect
Closely, finally also to trailing edge（5）It is close.
2. flow generator as claimed in claim 1, it is characterised in that：Blade（1）Leading edge（4）In radial directions by
Three sections of camber lines are formed, and they are leading edges（4）The first segmental arc R1 being sequentially connected, the second segmental arc R2 and the 3rd segmental arc
R3；Blade（1）Trailing edge（5）Also it is made up of in radial directions three sections of camber lines, they are trailing edges（5）Be sequentially connected first
Segmental arc R4, the segmental arc R6 of the second segmental arc R25 the 3rd；
Blade（1）Trailing edge（5）The first segmental arc R4 and blade（1）Leading edge（4）The first segmental arc R1 it is corresponding, and will
Blade（1）Be located at trailing edge（5）The first segmental arc R4 and leading edge（4）The first segmental arc R1 between part be referred to as blade
（1）The first arcuate segments；Blade（1）Trailing edge（5）The second segmental arc R5 and blade（1）Leading edge（4）The second segmental arc
R2 is corresponding, and by blade（1）Be located at trailing edge（5）The second segmental arc R5 and leading edge（4）The second segmental arc R2 between
Part is referred to as blade（1）The second arcuate segments；Blade（1）Trailing edge（5）The 3rd segmental arc R6 and blade（1）Leading edge（4）
The 3rd segmental arc R3 it is corresponding, and by blade（1）Be located at trailing edge（5）The 3rd segmental arc R6 and leading edge（4）The 3rd arc
Part between shape section R3 is referred to as blade（1）The 3rd arcuate segments；
In the first arcuate segments, from radially inner side to radial outside, maximum gauge t position is after middle starting to the front, first forward
Edge（4）It is close, backward trailing edge（5）It is close；After maximal bending moment c position originates from centre, first to trailing edge（5）It is close, before backward
Edge（4）It is close；In the second arcuate segments, from radially inner side to radial outside, maximum gauge t position is continued to trailing edge（5）It is close,
The position changed course trailing edge of maximal bending moment（5）It is close；In the 3rd arcuate segments, from radially inner side to radial outside, maximum gauge t position
Put changed course leading edge（4）Close, the position of maximal bending moment is continued to trailing edge（5）It is close.
3. flow generator as claimed in claim 2, it is characterised in that：Blade（1）Leading edge（4）The 3rd segmental arc R3
Bending opening direction towards front, blade（1）Trailing edge（5）The 3rd segmental arc R6 bending opening direction also towards
Front.
4. flow generator as claimed in claim 1, it is characterised in that：Blade（1）Outer rim（6）For segmental arc R7, arc
The opening direction of shape section R7 bending is towards radially inner side.
5. flow generator as claimed in claim 1, it is characterised in that：The flow generator fills for hydroelectric generation
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681118.4U CN206816430U (en) | 2017-06-13 | 2017-06-13 | A kind of flow generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681118.4U CN206816430U (en) | 2017-06-13 | 2017-06-13 | A kind of flow generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816430U true CN206816430U (en) | 2017-12-29 |
Family
ID=60759835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720681118.4U Expired - Fee Related CN206816430U (en) | 2017-06-13 | 2017-06-13 | A kind of flow generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206816430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083798A (en) * | 2017-06-13 | 2018-12-25 | 国网江苏省电力公司常州供电公司 | Fluid power generation device |
-
2017
- 2017-06-13 CN CN201720681118.4U patent/CN206816430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083798A (en) * | 2017-06-13 | 2018-12-25 | 国网江苏省电力公司常州供电公司 | Fluid power generation device |
| CN109083798B (en) * | 2017-06-13 | 2024-02-06 | 国网江苏省电力公司常州供电公司 | Fluid power generation device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |