CN110296032A - A kind of two-way full-tubular hydraulic turbine of high-performance - Google Patents
A kind of two-way full-tubular hydraulic turbine of high-performance Download PDFInfo
- Publication number
- CN110296032A CN110296032A CN201910577962.6A CN201910577962A CN110296032A CN 110296032 A CN110296032 A CN 110296032A CN 201910577962 A CN201910577962 A CN 201910577962A CN 110296032 A CN110296032 A CN 110296032A
- Authority
- CN
- China
- Prior art keywords
- deflector
- diffuser
- hydraulic turbine
- way full
- tubular hydraulic
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
-
- 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
Abstract
The invention discloses a kind of two-way full-tubular hydraulic turbine of high-performance, including sequentially connected water inlet pipe, draft tube, movable guide vane, runner are disposed with along water (flow) direction on central axis in water inlet pipe；Draft tube includes sequentially connected first diffuser, the second diffuser, third diffuser and the 4th diffuser, the first deflector, the second deflector are connected with along the second diffuser inner wall circumference, first deflector, the second deflector equidistantly distributed, the length of first deflector is equal to the second diffusion segment length, and is greater than the second deflector length；Second deflector one end is located at the second diffuser outlet.Avoid unnecessary flow losses；Second deflector is placed on far from outlet of rotary wheel side, can prevent from forming stronger stator-rotor interaction effect with impeller, influence stable operation.
Description
Technical field
The invention belongs to turbine technology fields, are related to a kind of two-way full-tubular hydraulic turbine of high-performance.
Background technique
China coastline is wide, and tidal engery resource is abundant, the low water head characteristic that tide energy has, so that tubular turbine
As the first choice of tide energy exploitation, but the conventional tubular turbine currently used for tide energy power generation mostly can only unidirectionally be sent out
Electricity, can not equalization waterwheel machine way traffic when hydraulic performance, it is two-way in order to improve the energy conversion efficiency of low water head tide energy
Rim generator turbine power generator researches and develops the mainstream research direction for becoming tubular turbine, existing two-way tubular water
The design of turbine draft tube causes that reverse condition energy utilization efficiency is low, vortex rope and pressure fluctuation in forward bias operating condition draft tube
The problems such as big.
Summary of the invention
The object of the present invention is to provide a kind of two-way full-tubular hydraulic turbines of high-performance, solve existing in the prior art pass through
Flow water turbine has that backward energy transfer efficiency is low, vortex rope and pressure fluctuation are big in forward bias operating condition draft tube.
The technical scheme adopted by the invention is that a kind of two-way full-tubular hydraulic turbine of high-performance, including it is sequentially connected into
Water pipe, draft tube are disposed with movable guide vane, runner along water (flow) direction on central axis in water inlet pipe；Draft tube include according to
The first diffuser, the second diffuser, third diffuser and the 4th diffuser of secondary connection are connected along the second diffuser inner wall circumference
There are the first deflector, the second deflector, the first deflector, the second deflector equidistantly distributed, the length of the first deflector is equal to
Second diffusion segment length, and it is greater than the second deflector length；Second deflector one end is located at the second diffuser outlet.
The features of the present invention also characterized in that:
First deflector, the shape of the second deflector are identical.
The height of first deflector and the second deflector is sequentially increased along positive water (flow) direction.
The diameter of second diffuser any position is the height of D, the first deflector and the second deflector in the second diffuser
Degree is 0.05D.
Distance of first diffuser apart from runner rotation centerline is X1, the second diffuser is apart from runner rotation centerline
Distance is X2, the length of the second deflector is 0.5 (X2-X1)。
First deflector, the second deflector quantity and runner bucket quantity it is equal.
Two apex angles of first deflector far from the second diffuser inner wall are chamfering, and the arc radius of chamfering is 0.05-
0.1D。
The beneficial effects of the present invention are: a kind of two-way full-tubular hydraulic turbine of high-performance of the present invention, utilizes the straight of each section
Diameter goes two deflector height of constraint, can guarantee fluid in the uniformity of the opposite effect in each section of the diffuser；First water conservancy diversion
Plate and the second water conservancy diversion board ends use chamfered, avoid unnecessary flow losses；Second deflector is placed on separate turn
Wheel outlet side can prevent from forming stronger stator-rotor interaction effect with impeller, influence stable operation；When positive working condition, first is led
Flowing plate can weaken the circumferential circular rector of the fluid flowed out in draft tube from impeller outlet, make vortex rope development not, or reduce whirlpool
The range of band will not generate marginal security factor with collision with wall by the control of vortex rope motion profile near spindle centerline,
Reduce pressure artery；When reverse condition, the second deflector guides fluid steadily to flow into runner import along deflector induction direction
Region, can weaken the interaction of the disorder fluid and the fluid close to runner that flow into from draft tube import, to improve anti-
To energy conversion efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the two-way full-tubular hydraulic turbine of high-performance of the present invention；
Fig. 2 is a kind of draft tube structural schematic diagram of the two-way full-tubular hydraulic turbine of high-performance of the present invention；
Fig. 3 is a kind of perspective view of second diffuser of the two-way full-tubular hydraulic turbine of high-performance of the present invention；
Fig. 4 is a kind of deflector structure schematic diagram of the two-way full-tubular turbine draft tube of high-performance of the present invention.
In figure, 1. water inlet pipes, 2. draft tubes, the first diffuser of 2-1., the second diffuser of 2-2., 2-3. third diffuser,
The 4th diffuser of 2-4., 3. first deflectors, 4. movable guide vanes, 5. runners, 6. second deflectors.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of two-way full-tubular hydraulic turbine of high-performance, as shown in Figure 1, including sequentially connected water inlet pipe 1, draft tube 2, into
Movable guide vane 4, runner 5 are disposed with along water (flow) direction on central axis in water pipe 1；As shown in Fig. 2, draft tube 2 include according to
The first diffuser 2-1, the second diffuser 2-2, third diffuser 2-3 and the 4th diffuser 2-4 of secondary connection, as shown in figure 3, edge
Second diffuser 2-2 inner wall circumference is connected with the first deflector 3, the second deflector 6, this is the flowing by fluid in draft tube
What characteristic determined, for the draft tube of different models, best effect is placed on deflector on second segment diffuser 2-2；The
One deflector 3, the setting of the second deflector 6 interval, the length of the first deflector 3 are equal to the second diffuser 2-2 length, and are greater than the
Two deflectors, 6 length；Second deflector, 6 one end is located at the second outlet diffuser 2-2, comprehensively considers flow characteristics, will
Second deflector 6 is arranged far from runner 5 and exports side, prevents from forming stronger stator-rotor interaction effect with runner 5, influences to stablize
Operation.
First deflector 3, the shape of the second deflector 6 are identical.For tubular turbine, rotation axis horizontal is placed
And operating head polishing is low, flow rate of water flow is slow, and circumferentially the amount of changing is small, so the intensity requirement to deflector is lower, so the first deflector
3,6 thickness of the second deflector is smaller, and the mechanical loss that two deflectors generate is and its small.
The height of first deflector 3 and the second deflector 6 is sequentially increased along positive water (flow) direction.
The diameter of first outlet diffuser 2-1 is D1, the diameter of the second outlet diffuser 2-2 is D2, second expands
The diameter for dissipating any position section 2-2 is D, and the height of the first deflector 3 and the second deflector 6 in the second diffuser 2-2 is
0.05D, i.e., in X1End is 0.05D1, use X1It is because closer to each to different of the outlet of runner 5 flow direction that end section parameter, which carries out constraint,
Property is stronger, and deflector is stronger to its diversion effect；In X2End is 0.05D2.The the second diffuser 2- slowly to become larger for radius
2, two deflector height of constraint are gone with the radius in each section, can guarantee fluid in the opposite effect in each section of the diffuser
Uniformity.
Distance of the first diffuser 2-1 apart from 5 rotation centerline of runner is X1, the second diffuser 2-2 is apart from the rotation of runner 5
The distance of center line is X2, the length of the second deflector 6 is 0.5 (X2-X1)。
First deflector 3, the second deflector 6 quantity and 5 blade of runner quantity it is equal, the main reason is that consider
Stator-rotor interaction.
As shown in figure 4, two apex angles of the first deflector 3 or the second deflector 6 far from the second diffuser 2-2 inner wall are to fall
Angle, and the arc radius of chamfering is 0.05-0.1D.Two water conservancy diversion board ends use chamfered, avoid unnecessary flowing
Loss.The arc radius of chamfering is too small so that guide functions is deteriorated, and excessive flowing causes mechanical loss to increase.
A kind of working principle of the two-way full-tubular hydraulic turbine of high-performance of the present invention is as follows:
Water flow positive working condition run when, water flow from inlet tube 1 enter movable guide vane 4, movable guide vane 4, by water flow with optimal
Angle of attack water conservancy diversion enter runner 5 and drive runner 5 rotate, water flow enters draft tube 2 later, easily in sluicing vertebra under inclined operating condition
Outlet form vortex rope and expand in draft tube 2, when serious vortex rope can periodically beat formed on 2 wall surface of draft tube it is biggish
Pressure fluctuation and noise, the first deflector 3 can weaken the circumferential circular rector of the fluid flowed out in draft tube 2 from impeller outlet, make whirlpool
Band can not develop, or reduce the range of vortex rope, will not be with wall surface by the control of vortex rope motion profile near spindle centerline
Collision generates marginal security factor；When water flow reverse condition is run, draft tube 2 is used as water inlet pipe, the second deflector 6 guidance stream
Body steadily flows into runner entry zone along deflector induction direction, can weaken the disorder fluid flowed into from draft tube import and connect
The interaction of the fluid of nearly runner 5, and a part of circular rector is counteracted, so that circular rector caused by solving because of Coupled with Flow is lost
Direction efficiency caused by and declines problem.
In the above manner, a kind of two-way full-tubular hydraulic turbine of high-performance of the present invention, is gone about using the diameter in each section
Two deflector height of beam can guarantee fluid in the uniformity of the opposite effect in each section of the diffuser；When positive working condition, first
Deflector can weaken the circumferential circular rector of the fluid flowed out in draft tube from impeller outlet, make vortex rope development not, or reduce
The range of vortex rope, by vortex rope motion profile control near spindle centerline, will not with collision with wall generate marginal security because
Element；When reverse condition, the second deflector guides fluid steadily to flow into runner entry zone along deflector induction direction, can weaken
The interaction of the disorder fluid and the fluid close to runner that are flowed into from draft tube import.
Claims (7)
1. a kind of two-way full-tubular hydraulic turbine of high-performance, which is characterized in that including sequentially connected water inlet pipe (1), draft tube
(2), movable guide vane (4), runner (5) are disposed with along water (flow) direction on the interior central axis of the water inlet pipe (1)；The tail water
Pipe (2) includes sequentially connected first diffuser (2-1), the second diffuser (2-2), third diffuser (2-3) and the 4th diffusion
Section (2-4) is connected with the first deflector (3), the second deflector (6) along the second diffuser (2-2) inner wall circumference, and described the
The length of one deflector (3), the second deflector (6) equidistantly distributed, first deflector (3) is equal to the second diffuser (2-
2) length, and it is greater than the second deflector (6) length；Described second deflector (6) one end is located at the second diffuser (2-2) outlet and cuts
At face.
2. the two-way full-tubular hydraulic turbine of a kind of high-performance according to claim 1, which is characterized in that first deflector
(3), the shape of the second deflector (6) is identical.
3. the two-way full-tubular hydraulic turbine of a kind of high-performance according to claim 1, which is characterized in that first deflector
(3) it is sequentially increased with the height of the second deflector (6) along positive water (flow) direction.
4. the two-way full-tubular hydraulic turbine of a kind of high-performance according to claim 1 or 3, which is characterized in that described second expands
The diameter for dissipating any position section (2-2) is D, and first deflector (3) and the second deflector (6) are in the second diffuser (2-
2) height is 0.05D.
5. the two-way full-tubular hydraulic turbine of a kind of high-performance according to claim 1, which is characterized in that first diffuser
The distance of (2-1) apart from runner (5) rotation centerline is X1, second diffuser (2-2) is apart from runner (5) rotation centerline
Distance be X2, the length of second deflector (6) is 0.5 (X2-X1)。
6. the two-way full-tubular hydraulic turbine of a kind of high-performance according to claim 1, which is characterized in that first deflector
(3), the quantity of the second deflector (6) is and the quantity of runner (5) blade is equal.
7. the two-way full-tubular hydraulic turbine of a kind of high-performance according to claim 1, which is characterized in that first deflector
(3) two apex angles far from the second diffuser (2-2) inner wall are chamfering, and the arc radius of chamfering is 0.05-0.1D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910577962.6A CN110296032B (en) | 2019-06-28 | 2019-06-28 | Bidirectional full-through-flow turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910577962.6A CN110296032B (en) | 2019-06-28 | 2019-06-28 | Bidirectional full-through-flow turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110296032A true CN110296032A (en) | 2019-10-01 |
| CN110296032B CN110296032B (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910577962.6A Active CN110296032B (en) | 2019-06-28 | 2019-06-28 | Bidirectional full-through-flow turbine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177831A (en) * | 2020-10-28 | 2021-01-05 | 西安理工大学 | Bidirectional through-flow turbine with runner chamber in sawtooth structure |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369036A (en) * | 1999-08-06 | 2002-09-11 | 通用电器(加拿大)有限公司 | Partial splitter vane for reaction hydraulic turbine |
| GB2423339A (en) * | 2004-12-23 | 2006-08-23 | Sub Sea Turbines Ltd | Bi-directional turbine |
| WO2013051113A1 (en) * | 2011-10-05 | 2013-04-11 | 田中水力株式会社 | Francis turbine for hydropower generation |
| CN103216375A (en) * | 2013-04-10 | 2013-07-24 | 河海大学 | Bulb tubular water turbine for micro water head power station |
| CN103742351A (en) * | 2013-12-27 | 2014-04-23 | 河海大学 | Bidirectional through-flow turbine for generating power by tide |
| CN103883561A (en) * | 2014-02-25 | 2014-06-25 | 江苏大学 | Radial guide blade of residual heat removal pump |
| CN104121138A (en) * | 2014-07-28 | 2014-10-29 | 清华大学 | Water turbine draft tube with vortex restraining function |
| JP2014227890A (en) * | 2013-05-21 | 2014-12-08 | 株式会社東芝 | Water-turbine |
| US9759179B2 (en) * | 2015-09-18 | 2017-09-12 | Charles B. Culpepper | Hydroelectric generator system including helical longitudinal blades forming an open bore and aligned with a current direction |
| CN207647673U (en) * | 2017-12-14 | 2018-07-24 | 西安理工大学 | A kind of tubular turbine |
| CN207647674U (en) * | 2017-12-19 | 2018-07-24 | 东方电气集团东方电机有限公司 | A kind of two-stage pump turbine |
-
2019
- 2019-06-28 CN CN201910577962.6A patent/CN110296032B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369036A (en) * | 1999-08-06 | 2002-09-11 | 通用电器(加拿大)有限公司 | Partial splitter vane for reaction hydraulic turbine |
| GB2423339A (en) * | 2004-12-23 | 2006-08-23 | Sub Sea Turbines Ltd | Bi-directional turbine |
| WO2013051113A1 (en) * | 2011-10-05 | 2013-04-11 | 田中水力株式会社 | Francis turbine for hydropower generation |
| CN103216375A (en) * | 2013-04-10 | 2013-07-24 | 河海大学 | Bulb tubular water turbine for micro water head power station |
| JP2014227890A (en) * | 2013-05-21 | 2014-12-08 | 株式会社東芝 | Water-turbine |
| CN103742351A (en) * | 2013-12-27 | 2014-04-23 | 河海大学 | Bidirectional through-flow turbine for generating power by tide |
| CN103883561A (en) * | 2014-02-25 | 2014-06-25 | 江苏大学 | Radial guide blade of residual heat removal pump |
| CN104121138A (en) * | 2014-07-28 | 2014-10-29 | 清华大学 | Water turbine draft tube with vortex restraining function |
| US9759179B2 (en) * | 2015-09-18 | 2017-09-12 | Charles B. Culpepper | Hydroelectric generator system including helical longitudinal blades forming an open bore and aligned with a current direction |
| CN207647673U (en) * | 2017-12-14 | 2018-07-24 | 西安理工大学 | A kind of tubular turbine |
| CN207647674U (en) * | 2017-12-19 | 2018-07-24 | 东方电气集团东方电机有限公司 | A kind of two-stage pump turbine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177831A (en) * | 2020-10-28 | 2021-01-05 | 西安理工大学 | Bidirectional through-flow turbine with runner chamber in sawtooth structure |
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| CN110296032B (en) | 2021-01-15 |
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