CN207406382U - A kind of asymmetric air turbine suitable for Asia sea area oscillaton water column type Wave energy electric generator - Google Patents
A kind of asymmetric air turbine suitable for Asia sea area oscillaton water column type Wave energy electric generator Download PDFInfo
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- CN207406382U CN207406382U CN201721256019.8U CN201721256019U CN207406382U CN 207406382 U CN207406382 U CN 207406382U CN 201721256019 U CN201721256019 U CN 201721256019U CN 207406382 U CN207406382 U CN 207406382U
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- movable vane
- vane piece
- wheel hub
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 5
- 238000009738 saturating Methods 0.000 claims 8
- 238000000926 separation method Methods 0.000 abstract description 4
- FWQHNLCNFPYBCA-UHFFFAOYSA-N fluoran Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11OC(=O)C2=CC=CC=C21 FWQHNLCNFPYBCA-UHFFFAOYSA-N 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model discloses a kind of asymmetric air turbines suitable for Asia sea area oscillaton water column type Wave energy electric generator, the air turbine includes hollow wheel hub, install to seal the wheel hub head of hub cavity respectively in the both sides of wheel hub, being set on wheel hub can be around the movable vane piece wheel that wheel hub rotates, movable vane piece has been uniformly arranged in the circumferential direction on the outer wall of movable vane piece wheel, the vertical cross-section shape of the movable vane piece is crescent, axle sleeve with keyway is set on the wheel disc of movable vane piece wheel, one side is installed to stretch out outside wheel hub head and the turbine spindle of blade wheel synchronous rotary can be servo-actuated on axle sleeve, also respectively a circle leaf is circumferentially provided with along wheel hub open up the guide vane bigger than movable vane piece in the both sides of movable vane piece wheel.Air turbine disclosed in the utility model, fluoran stream surface product of the movable vane piece pressure face under the high incident flow velocity of expiration phase can be increased, delay air-flow in the velocity separation phenomenon of movable vane piece suction surface, power utilization efficiency of the air turbine in expiration phase is improved, and then improves cycle average efficiency of the air turbine in actual sea situation.
Description
Technical field
The utility model belongs to wave-energy power generation field, and more particularly to one kind in the field is vibrated suitable for Asia sea area
The asymmetric air turbine of water column type Wave energy electric generator.
Background technology
Wave energy refers to kinetic energy and potential energy possessed by ocean surface wave, with wave height square, period of motion of wave
And the width of wave slope is directly proportional.Although wave energy is one kind that energy is most unstable in marine energy, it is in the whole world
Reserves it is very considerable, theoretical assessment is about annual 17TWh.The difference of wave energy operation principle, ripple are absorbed according to device
Wave energy generating set can be divided into oscillaton water column type, more unrestrained formula, three kinds of oscillating body formula.In contrast, oscillaton water column type
(Oscillating Water Column, abbreviation OWC) Wave energy electric generator is simple in structure, and can be combined with breakwater device with
Project cost is reduced, simultaneously as its energy conversion device, not with contact with sea water, reliability is higher and repair is more convenient.
Large-scale OWC devices since 2010 have the breakwater formula device positioned at Aragon Mutriku ports, positioned at Italy
The U-shaped breakwater formula REWEC3 devices at Civitavecchia ports, the back elbow floating CORES positioned at Irish Galway gulfs are filled
It puts and the fixed Yongsoo devices positioned at South Korea's Jizhou Island.
Air turbine is the important component that energy secondary is converted in OWC devices, and unidirectional rotation can be realized in reciprocal air-flow
Turn, the low-pressure pneumatic that gas chamber generates can be converted into shaft shaft work.Application of the air turbine in OWC devices has certain spy
Different property：Its working media is reciprocating air stream, has non-stationarity and compressibility；Its working characteristics causes turbine worked
There is the possibility that negative work exports in journey.There are two types of common self-rectifying formula air turbines：This formula turbine of Weir and impulse turbine.
This formula turbine of traditional Weir has simple in structure, the advantage of peak value efficiency, is suitable for the good European marine site of wave condition, should
Turbine in the small range discharge coefficient before stall have high efficiency, once but stall, huge subtract of torque can make turbine
It can deteriorate moment, further include the sides such as self-starting poor performance, working range are narrow, operating noise is big the shortcomings that this formula turbine of Weir in addition
Face.Although traditional impulse turbine peak efficiencies are not as good as this formula of Weir, startability is good, no stall event, in big flow
Coefficient area efficiency, which declines, slowly, is particularly suitable for the poor Asia sea area use of wave condition, but it is mostly symmetrical expression, i.e. movable vane
Piece profile and guide vane position are symmetrical with center line of the movable vane piece along direction of rotation, and engineering is actual shows that OWC devices exist
Asia sea area gas chamber expiration phase is more than the air-flow amplitude of expiratory phase by the air-flow amplitude of impulse turbine, causes exhaling
The a large amount of power of stage yield-loss.
Utility model content
Technical problem to be solved in the utility model, which is just to provide a kind of Asia sea area that is suitable for, can simultaneously improve real sea situation
Lower oscillaton water column type Wave energy electric generator pneumatic energy utilizes the asymmetric air turbine of cycle average efficiency.
The utility model adopts the following technical solution：
A kind of asymmetric air turbine suitable for Asia sea area oscillaton water column type Wave energy electric generator, innovation
It is：The air turbine includes hollow wheel hub, installs to seal the wheel hub of hub cavity respectively in the both sides of wheel hub
Head, movable vane can be uniformly arranged in the circumferential direction around the movable vane piece wheel that wheel hub rotates on the outer wall of movable vane piece wheel by being set on wheel hub
Piece, the vertical cross-section shape of the movable vane piece is crescent, and the camber ratio opposite side of the crescent one side protrusion is raised
Radian is big, and the axle sleeve with keyway is set on the wheel disc of movable vane piece wheel, installs one side on axle sleeve and stretches out outside wheel hub head and can be servo-actuated
The turbine spindle of blade wheel synchronous rotary, which is connected with the wheel hub head of both sides by bearing, the two of movable vane piece wheel
Side is also respectively circumferentially provided with a circle leaf along wheel hub and opens up the guide vane bigger than movable vane piece, and the vertical cross-section of the guide vane is by one
Section straightway and one section of arc section composition, and one side adjacent thereto in the direction of its straightway export air-flow and movable vane piece
Air-flow inflow direction is opposite.
Further, the shape of the wheel hub head is hemisphere or semiellipse sphere.
Further, Concentric plate is set in the one side of movable vane piece wheel, is bolted to connection between the Concentric plate and wheel hub,
It is connected through the turbine spindle and Concentric plate of Concentric plate with bearing.
Further, four bolts hole are uniformly arranged along the circumferential direction of Concentric plate, through bolt hole bolt by Concentric plate with
Wheel hub is fixed together.
Further, the suction surface of the movable vane piece vertical cross-section be by radius be R2、R4And R5Circular arc composition face,
Pressure face is that radius is R3Arc surface, the one side of suction surface and pressure face is R by radius1Circular arc be connected, opposite side is by two
The straightway that item stretches is R by radius6Circular arc be connected.
Further, radius R1：R6=3：1.
Further, radius R3、R2、R5Length is identical, is R4Twice.
Further, be connected the tool face angle θ of straightway with pressure face1More than the device for the straightway that is connected with suction surface
Angle θ2。
Further, turbine spindle is connected with the power input shaft of the outer generator of air turbine.
Further, air turbine is fixedly connected by its upper and lower two circles guide vane with kuppe inner wall.
The beneficial effects of the utility model are：
Asymmetric air turbine disclosed in the utility model suitable for Asia sea area, the vertical cross-section of movable vane piece
Shape is crescent, and the radian of the camber ratio opposite side protrusion of the crescent one side protrusion is big, and the big one side of radian is set
Stream side is met for expiration phase, you can fluoran stream surface product of the increase movable vane piece pressure face under the high incident flow velocity of expiration phase delays
Air-flow reduces air-flow passive blade and enters the power damage that downstream guide vane generates in the velocity separation phenomenon of movable vane piece suction surface
It loses, improves power utilization efficiency of the air turbine in expiration phase, and then improve cycle of the air turbine in actual sea situation and put down
Equal efficiency.
In the gas chamber expiration phase that air-flow peak value is larger, compared to symmetrical structure, presently disclosed asymmetric is empty
The torque coefficient of gas turbine, which has, significantly to be promoted, and input coefficient is substantially reduced.Therefore in expiration phase, asymmetric air
The work efficiency of turbine is largely improved.Compared to symmetrical air turbine, asymmetric air turbine is to incidence
The asymmetry of air-flow is less sensitive.Gas chamber is exhaled, expiratory phase air-flow velocity is more asymmetric, the cycle of symmetrical air turbine
Average efficiency declines more；And asymmetric air turbine has the asymmetry of air-flow good adaptability, the cycle puts down
Equal efficiency will not be influenced by the cycle asymmetry of air-flow.
Asia sea area wave condition is poor compared to European marine site, and the incident air flow peak value of generation is smaller, and compared with Europe
This formula turbine of the Weir that continent marine site generally uses, asymmetric air turbine disclosed in this invention have good self-starting spy
Property, relatively low working speed, wider discharge coefficient scope and smaller operating noise are suitble to use in Asia sea area.
Description of the drawings
Fig. 1 is the front view of the asymmetric air turbine disclosed in the utility model embodiment 1；
Fig. 2 is the top view of the asymmetric air turbine disclosed in the utility model embodiment 1；
Fig. 3 is the stereogram of the asymmetric air turbine disclosed in the utility model embodiment 1；
Fig. 4 is the sectional view of the asymmetric air turbine disclosed in the utility model embodiment 1；
Fig. 5 is the stereogram of the asymmetric air turbine movable vane piece wheel disclosed in the utility model embodiment 1；
Fig. 6 is the stereogram of the asymmetric air turbine Concentric plate disclosed in the utility model embodiment 1；
Fig. 7 is the movable vane piece of the asymmetric air turbine disclosed in the utility model embodiment 1 and its both sides water conservancy diversion leaf
The vertical cross-section schematic shapes of piece；
Fig. 8 is the air flow rate timeamplitude map that Asia sea area OWC devices gas chamber generates.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment 1 as shown in Figs 1-4, is suitable for Asia sea area oscillaton water column type wave energy present embodiment discloses one kind and sends out
The asymmetric air turbine of electric installation, the air turbine include hollow wheel hub 5, use are installed respectively in the both sides of wheel hub
In the wheel hub first 1 of sealing hub cavity, being set on wheel hub can be around the movable vane piece wheel 11 that wheel hub rotates, as shown in figure 5, in movable vane
Movable vane piece 3 is uniformly arranged in the circumferential direction on the outer wall of piece wheel, the vertical cross-section shape of the movable vane piece is crescent, and this is new
The radian of the camber ratio opposite side protrusion of moon shape one side protrusion is big, and the axle sleeve 12 with keyway is set on the wheel disc of movable vane piece wheel,
One side is installed to stretch out outside wheel hub head and the wheel of the turbine spindle 8 of blade wheel synchronous rotary, the turbine spindle and both sides can be servo-actuated on axle sleeve
Hub head is connected by bearing 7, the both sides of movable vane piece wheel also respectively along wheel hub be circumferentially provided with a circle leaf exhibition it is bigger than movable vane piece
Guide vane 2, the vertical cross-section of the guide vane is made of one section of straightway and one section of arc section, and its straightway
The direction for exporting air-flow is opposite with the air-flow inflow direction of one side adjacent thereto in movable vane piece.
Alternatively, in the present embodiment, the shape of the wheel hub head is that hemisphere or half are ellipse
Spherosome.As shown in fig. 6, setting Concentric plate 9 in the one side of movable vane piece wheel, fixed and connected by bolt 10 between the Concentric plate and wheel hub
It connects, is connected through the turbine spindle and Concentric plate of Concentric plate with bearing 7.Four bolts are uniformly arranged along the circumferential direction of Concentric plate
Concentric plate and wheel hub are fixed together by hole 13, the bolt through bolt hole.Concentric plate can play turbine spindle certain support
Effect is further ensured that the alignment of rotation.
As shown in fig. 7, the suction surface of the movable vane piece vertical cross-section be by radius be R2、R4And R5Circular arc composition face,
Pressure face is that radius is R3Arc surface, the one side of suction surface and pressure face is R by radius1Circular arc be connected, opposite side is by two
The straightway that item stretches is R by radius6Circular arc be connected.Radius R1：R6=3：1.Radius R3、R2、R5Length is identical, is R4's
Twice.Be connected the tool face angle θ of straightway with pressure face1More than the tool face angle θ for the straightway that is connected with suction surface2。
In use, it is necessary to by generator outside the turbine spindle of air turbine disclosed in the present embodiment 1 and air turbine
Power input shaft be connected, movable vane piece wheel rotates under airflow function, drive turbine spindle rotation, so as to which generator be driven to send out
Electricity.
Air turbine is fixedly connected by its upper and lower two circles guide vane with kuppe inner wall, due to the leaf exhibition of guide vane
It is bigger than movable vane piece, so make movable vane piece wheel can be in kuppe certainly there are certain interval between the end of movable vane piece and kuppe
By rotating.
The kuppe one end for being built-in with asymmetric air turbine disclosed in the present embodiment 1 is sent out with oscillaton water column type wave energy
The gas chamber outlet of electric installation is connected, and the other end is connected with air.In a cycle of wave, air-flow is exported from gas chamber and passed through
The process of air turbine discharge air is known as expiration phase, and the stage that air-flow is exported from air through air turbine into air inlet chamber is known as
Expiratory phase.Fig. 8 is the air flow rate timeamplitude map that Asia sea area OWC devices gas chamber generates, it is seen that a cycle interior air-flow stream
It measures as asymmetric, the air flow rate that expiration phase generates is about 1.5 times of expiratory phase.Therefore by air turbine movable vane piece arc
Spend the outlet of big one side and gas chamber and be oppositely arranged to improve the power utilization efficiency of expiration phase, the small one side of radian then with greatly
Gas is oppositely arranged.No matter in expiration phase or expiratory phase, the guide vane for taking the lead in meeting stream is known as upstream guide vane, then
The guide vane of stream is sent to be known as downstream guide vane.
In expiration phase, air-flow is with flow velocity VEMovable vane piece is led into through upstream guide vane, in the suction of movable vane piece
Face Ying Liu sides form stationary point and around flow phenomenons, and a part of air-flow accelerates to flow along suction surface, and a part of air-flow is R around radius1
Arc section enter pressure face, and meet stream side in pressure face and form small-scale velocity separation and vortex.Movable vane piece afterbody is stream
It is linear, therefore it is not in velocity separation phenomenon to meet the air-flow for flowing side acceleration in movable vane piece afterbody by suction surface, this is certain
The power loss of air-flow is reduced in degree.On the other hand, the pressure differential generation on movable vane piece pressure face and suction surface promotes to move
The torque of blade wheel rotation, making movable vane piece wheel, the arrow direction along Fig. 7 rotates with rotational speed omega.
In expiratory phase, air-flow is with flow velocity VIInto after movable vane piece, the pressure differential production on movable vane piece pressure face and suction surface
Raw torque still makes movable vane piece wheel be rotated along the arrow direction in Fig. 7, and therefore, the asymmetric disclosed in the present embodiment 1 is empty
The uniformity of movable vane piece wheel direction of rotation is kept in the reciprocal air-flow that gas turbine can be generated in OWC gas chambers, by reciprocal air-flow
Low-pressure pneumatic energy continuous transformation is turbine spindle shaft work, so as to which generator continuation be driven to generate electricity.
Claims (10)
1. a kind of asymmetric air turbine suitable for Asia sea area oscillaton water column type Wave energy electric generator, it is characterised in that：
The air turbine includes hollow wheel hub, installs to seal the wheel hub head of hub cavity respectively in the both sides of wheel hub,
Movable vane piece, institute can be uniformly arranged in the circumferential direction around the movable vane piece wheel that wheel hub rotates on the outer wall of movable vane piece wheel by being set on wheel hub
The vertical cross-section shape of movable vane piece is stated to be crescent, and the radian of the camber ratio opposite side protrusion of the crescent one side protrusion
Greatly, the axle sleeve with keyway on the wheel disc of movable vane piece wheel is set, one side is installed on axle sleeve and is stretched out outside wheel hub head and can be with movable vane piece
The turbine spindle of synchronous rotary is taken turns, which is connected with the wheel hub head of both sides by bearing, in the both sides of movable vane piece wheel also
Respectively a circle leaf being circumferentially provided with along wheel hub and opening up the guide vane bigger than movable vane piece, the vertical cross-section of the guide vane is straight by one section
Line segment and one section of arc section composition, and its straightway exports the air-flow of one side adjacent thereto on the direction and movable vane piece of air-flow
Inflow direction is opposite.
2. the asymmetric air according to claim 1 suitable for Asia sea area oscillaton water column type Wave energy electric generator is saturating
It is flat, it is characterised in that：The shape of the wheel hub head is hemisphere or semiellipse sphere.
3. the asymmetric air according to claim 1 suitable for Asia sea area oscillaton water column type Wave energy electric generator is saturating
It is flat, it is characterised in that：Concentric plate is set in the one side of movable vane piece wheel, is bolted to connection, wears between the Concentric plate and wheel hub
It crosses between the turbine spindle of Concentric plate and Concentric plate and is connected with bearing.
4. the asymmetric air according to claim 3 suitable for Asia sea area oscillaton water column type Wave energy electric generator is saturating
It is flat, it is characterised in that：Be uniformly arranged four bolts hole along the circumferential direction of Concentric plate, through bolt hole bolt by Concentric plate and wheel hub
It is fixed together.
5. the asymmetric air according to claim 1 suitable for Asia sea area oscillaton water column type Wave energy electric generator is saturating
It is flat, it is characterised in that：The suction surface of the movable vane piece vertical cross-section is to be by radiusR 2 、R 4 AndR 5 Circular arc composition face, pressure
Face is that radius isR 3 Arc surface, the one side of suction surface and pressure face is by radiusR 1 Circular arc be connected, opposite side by two drawing
The straightway stretched is by radiusR 6 Circular arc be connected.
6. the asymmetric air according to claim 5 suitable for Asia sea area oscillaton water column type Wave energy electric generator is saturating
It is flat, it is characterised in that：RadiusR 1 ：R 6 =3：1.
7. the asymmetric air according to claim 6 suitable for Asia sea area oscillaton water column type Wave energy electric generator is saturating
It is flat, it is characterised in that：RadiusR 3 、R 2 、R 5 Length is identical, isR 4 Twice.
8. the asymmetric air according to claim 7 suitable for Asia sea area oscillaton water column type Wave energy electric generator is saturating
It is flat, it is characterised in that：Be connected the tool face angle of straightway with pressure faceq 1 More than the tool face angle for the straightway that is connected with suction surfaceq 2 。
9. the asymmetric air according to claim 1 suitable for Asia sea area oscillaton water column type Wave energy electric generator is saturating
It is flat, it is characterised in that：Turbine spindle is connected with the power input shaft of the outer generator of air turbine.
10. the asymmetric air according to claim 1 suitable for Asia sea area oscillaton water column type Wave energy electric generator
Turbine, it is characterised in that：Air turbine is fixedly connected by its upper and lower two circles guide vane with kuppe inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721256019.8U CN207406382U (en) | 2017-09-28 | 2017-09-28 | A kind of asymmetric air turbine suitable for Asia sea area oscillaton water column type Wave energy electric generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721256019.8U CN207406382U (en) | 2017-09-28 | 2017-09-28 | A kind of asymmetric air turbine suitable for Asia sea area oscillaton water column type Wave energy electric generator |
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| Publication Number | Publication Date |
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| CN207406382U true CN207406382U (en) | 2018-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721256019.8U Expired - Fee Related CN207406382U (en) | 2017-09-28 | 2017-09-28 | A kind of asymmetric air turbine suitable for Asia sea area oscillaton water column type Wave energy electric generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184993A (en) * | 2019-04-29 | 2019-08-30 | 江苏科技大学 | A kind of square-box-shaped floating breakwater with oscillaton water column type wave energy generating set |
| CN110953020A (en) * | 2019-12-12 | 2020-04-03 | 清华大学 | U-shaped runner impact turbine suitable for oscillating water column type wave energy power generation |
-
2017
- 2017-09-28 CN CN201721256019.8U patent/CN207406382U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184993A (en) * | 2019-04-29 | 2019-08-30 | 江苏科技大学 | A kind of square-box-shaped floating breakwater with oscillaton water column type wave energy generating set |
| CN110953020A (en) * | 2019-12-12 | 2020-04-03 | 清华大学 | U-shaped runner impact turbine suitable for oscillating water column type wave energy power generation |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 |