CN201065807Y - High specific speed packaged axial flow fixed paddle type turbine generation unit - Google Patents
High specific speed packaged axial flow fixed paddle type turbine generation unit Download PDFInfo
- Publication number
- CN201065807Y CN201065807Y CNU2007201692908U CN200720169290U CN201065807Y CN 201065807 Y CN201065807 Y CN 201065807Y CN U2007201692908 U CNU2007201692908 U CN U2007201692908U CN 200720169290 U CN200720169290 U CN 200720169290U CN 201065807 Y CN201065807 Y CN 201065807Y
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- blade
- axial flow
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- height ratio
- water turbine
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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 utility model relates to an equipped fixed-blade propeller typed water turbine generator set with high specific speed, comprising a water turbine, a generator and a speed governor, wherein, the speed governor and the generator are both connected with the water turbine; the water turbine comprises a volute, a rotating wheel, a stay ring, a movable guide blade, a bottom ring and a water pipe; the rotating wheel comprises a rotating wheel body and a blade; the volute is provided with a water inlet; the water flow is discharged via a draft tube after passing through the water inlet of the volute, the stay ring, the movable guide blade, the bottom ring and the rotating wheel in series; the rotating wheel body is fixedly connected with the main shaft of the generator; the front part and the rear part of the cross section of the blade have an arc shape sinking gradually from the outer side of the blade to the inner side; the thickness of the inner side of the blade is larger than the thickness of the outer the blade increases gradually from the inner side of the blade to the outer side of the blade; the front molded line close to the inner side of the rotating wheel body on the anterior part of the blade is lower than the front molded line outside the blade. The utility model has the advantages of simple structure, high specific speed, large flow rate, high working condition efficiency and effective increase of the best working condition unit flow rate.
Description
Technical field
The utility model relates to a kind of hydraulic generator unit, particularly relates to the self-contained axial flow of a kind of height ratio speed and decides oar formula hydraulic generator unit.
Background technique
When at present axial flow hydraulic turbine has rotary propeller type and decides oar two kinds, Kaplan turbine usually needs to be provided with dual speed governing, lubricant receiver, operating oil line and Hydraulic Power Transmission System, joint mechanism, answer structure, generator shaft and turbine shaft and all must make hollow, so that placement operations mechanism therein, like this rotary propeller type axial flow hydraulic turbine structure complexity, cost height, can only in large-scale unit, adopt.Decide oar formula axial flow water turbine and overcome above shortcoming, simplified structure, reduction cost.The general present self-contained axial flow of height ratio speed that fixed-blade propeller turbine is installed is decided oar formula hydraulic generator unit and is comprised fixed-blade propeller turbine, generator and speed regulator, generator is connected with water turbine, water turbine drives generator for electricity generation, and speed regulator is connected control water turbine change rotating speed and flow with water turbine.Fixed-blade propeller turbine comprises spiral case, runner, seat ring, movable guide vane, base and draft tube, and runner, seat ring, movable guide vane, base and draft tube are positioned at spiral case inside, spiral case has water intake and water outlet, water outlet is connected with draft tube, seat ring is inner to be fixed with a plurality of fixed guide vanes along ring in one week, leave the gap between each fixed guide vane inclination several angle and each fixed guide vane, guarantee that current can flow through fixed guide vane, be provided with a plurality of movable guide vanes in seat ring inside with corresponding part, fixed guide vane position, the part of movable guide vane is positioned at base ring, base ring constitutes for the loop pipe at band turning, the upper, annular conduit and the lower annular conduit that are connected by the turning conduit.Movable guide vane is in ring-type catheter position place, base ring top, water (flow) direction is a substantially horizontal in this upper, annular conduit, current are vertical by flowing to behind the conduit of turning in the lower annular conduit of base ring, the movable guide vane center fixation, movable guide vane can be around the center rotation, runner comprises web and blade, the wheel body setting and fixing that rotates of a plurality of blade rings, and general blade is to be fixedly arranged on the web by welding manner.Web is fixedlyed connected with the main shaft of generator, and the web rotation drives main axis rotation, and then drives generator for electricity generation.During use, fixed-blade propeller turbine is fixed on the bank, after current flow into from the hydroturbine water intake mouth, pass through seat ring, pass around after being fixed on the seat ring fixed guide vane in one week, the movable guide vane of flowing through, movable guide vane has the skew of several angle under the drive of current, the back flows into base ring, and through in the lower annular conduit that enters base ring behind the conduit of base ring turning and flow through on the blade that is positioned at the runner under it, current drive blade clockwise or motion counterclockwise, drive the web rotation simultaneously, and then the main axis rotation of drive generator, finish generating work.Current make things convenient for the current inflow water turbine of back to generate electricity by the draft tube discharge water turbine that water turbine water outlet position is provided with simultaneously.Speed regulator is connected the rotating speed of regulating water turbine with water turbine.But the shortcoming of such water turbine generating set is that because its spiral case adopts T-shape or " Γ " type concrete spiral casing, the placing difficulty is bigger, and construction cost is bigger.Simultaneously, because blade itself is designed to the shape of cross section of blade near the inboard arc landing shape that progressively reduces to the outside one radian away from web of web, make that the conveyance capacity of water turbine itself is not strong, efficient is not high under the situation of big flow, and the runner specific speed is not high.
Summary of the invention
The utility model is finished in order to solve deficiency of the prior art, the purpose of this utility model provide a kind of simple in structure, height ratio is fast, tall and big flow operating mode efficient, the self-contained axial flow of height ratio speed that effectively improves the optimum operating condition specific discharge are decided oar formula hydraulic generator unit.
The self-contained axial flow of height ratio speed of the present utility model is decided oar formula hydraulic generator unit, comprise water turbine, generator and speed regulator, described speed regulator is connected with described water turbine, described generator is connected with described water turbine, described water turbine comprises spiral case and is positioned at the runner of spiral case inside, seat ring, movable guide vane, base ring and draft tube, described runner comprises web and around the blade of being located on the described web, described spiral case is provided with water intake, described current are successively by the spiral case water intake, seat ring, movable guide vane, base ring and runner, and discharge by draft tube, described web is fixedlyed connected with described generator shaft, it is characterized in that: described leaf cross-section front and rear is shaped as the arc that described blade progressively sinks near the inboard of web to described blade away from the outside of web, the inboard thickness of described blade is greater than described thickness as outside, the anterior arc radius of described blade progressively increases to the described blade outside by described blade is inboard, and the anterior inboard front molded lines near web of described blade is lower than front, described blade outside molded lines.
The self-contained axial flow of height ratio speed of the present utility model is decided oar formula hydraulic generator unit and can also is:
Described twist angle of blade angle value is an any number between 25 ° to 45 °.
Further preferred scheme is that described twist angle of blade angle value is an any number between 25 ° to 30 °.
Described movable guide vane is positioned at described base ring upper level ring duct, described base ring bottom vertical ring duct is communicated with described above-mentioned horizontal annular conduit by the turning conduit, described bottom vertical ring duct is positioned at the top of described blade, described turning conduit flex point diameter is that turning conduit radius of curvature increases gradually between 1.101 times to 1.11 times of runner diameter.
Described turning conduit flex point diameter is 1.107 times of runner diameter.
Described spiral case is the circular metal spiral case.
Described generator detachably is installed on the described spiral case by connecting base, and described speed regulator is installed on the spiral case.
Described generator removably connects by connecting base and described water turbine.
Described leaf curling is " X " shape.
The self-contained axial flow of height ratio speed of the present utility model is decided oar formula hydraulic generator unit, have the following advantages with respect to prior art: because the leaf cross-section front and rear is shaped as the arc that the blade outside progressively sinks to described blade inboard, the inboard thickness of blade is greater than thickness as outside, the anterior arc radius of blade is progressively increased to the blade outside by the blade inboard, and the anterior inboard front molded lines near web of blade is lower than front, blade outside molded lines.Integral blade sunk type shape can strengthen conveyance capacity, raises the efficiency under big flow operating mode, improves the runner specific speed, and improves the generated energy of unit time, improves generating efficiency.
Description of drawings
Fig. 1 is that the self-contained axial flow of the utility model height ratio speed is decided oar formula hydraulic generator unit embodiment schematic representation.
Fig. 2 is that the self-contained axial flow of the utility model height ratio speed is decided oar formula runner of hydro-generating unit schematic representation.
Fig. 3 a decides oar formula hydraulic generator unit leaf cross-section figure for the self-contained axial flow of existing height ratio speed.
Fig. 3 b decides oar formula hydraulic turbine generator leaf cross-section figure for the utility model axial flow.
The self-contained axial flow of Fig. 4 the utility model height ratio speed is decided oar formula hydraulic generator unit twist angle of blade schematic representation.
Fig. 5 is that the self-contained axial flow of the utility model height ratio speed is decided oar formula hydraulic generator unit base ring schematic representation.
The figure number explanation
1 ... generator 2 ... connecting base 3 ... speed regulator 41 ... spiral case
42 ... web 43 ... movable guide vane 44 ... fixed guide vane 45 ... blade
46 ... draft tube 47 ... base ring 471 ... the upper, annular conduit
472 ... turning conduit 473 ... the lower annular conduit
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
The self-contained axial flow of height ratio speed of the present utility model is decided oar formula hydraulic generator unit, please refer to Fig. 1 to Fig. 5, comprise fixed-blade propeller turbine, generator 1 and speed regulator 3, generator 1 is connected with water turbine, water turbine drives generator 1 generating, and speed regulator 3 is connected control water turbine change rotating speed with water turbine.Water turbine comprises spiral case 41, runner, seat ring, movable guide vane 43, base and draft tube 46, and runner, seat ring, movable guide vane 43, base and draft tube 46 are positioned at spiral case 41 inside, spiral case 41 has water intake and water outlet, water outlet is connected with draft tube 46, seat ring is inner to be fixed with a plurality of fixed guide vanes 44 one week along ring, leave the gap between each fixed guide vane 44 inclination several angle and each fixed guide vane 44, guarantee that current can flow through fixed guide vane 44, be provided with a plurality of movable guide vanes 43 in seat ring inside with corresponding part, fixed guide vane 44 position, base ring 47 is the annular conduit at band turning, it is made of the upper, annular conduit 471 and the lower annular conduit 47 that connect by the turning pipe, the effect of base ring 47 is flow directions of conversion current, the part of movable guide vane 43 is positioned at base ring 47, movable guide vane 43 parts are in base ring 47 top loop positions, flow direction is for being substantially horizontal in this top loop conduit, through water (flow) direction in the bottom ring conduit of base ring behind the turning 47 is vertical, movable guide vane 43 center fixation, movable guide vane 43 can be around the center rotation, runner comprises web 42 and blade 45, a plurality of blades 45 are provided with around web 42 and are fixing, and general blade 45 is to be fixedly arranged on the web 42 by welding manner.Web 42 is fixedlyed connected with the main shaft of generator 1, and web 42 rotations drive main axis rotation, and then drives generator 1 generating.During use, fixed-blade propeller turbine is fixed on the bank, after current flow into from the hydroturbine water intake mouth, pass through seat ring, pass around behind the fixed guide vane 44 that is fixed on one week of seat ring, the movable guide vane 43 of flowing through, movable guide vane 43 has the skew of several angle under the drive of current, the back flows into base ring 47, and through in the lower annular conduit 47 that enters base ring 47 behind the base ring 47 turning conduits 472 and flow through on the blade 45 that is positioned at the runner under it, current drive blade 45 clockwise or motion counterclockwise, drive web 42 rotations simultaneously, and then the main axis rotation of drive generator 1, finish generating work.Current make things convenient for the current inflow water turbine of back to generate electricity by the draft tube 46 discharge water turbines that water turbine water outlet position is provided with simultaneously.Speed regulator 3 is connected the rotating speed of regulating water turbine with water turbine.Please please refer to Fig. 2, the surface that turbine blade 45 directly contacts with current is the front of blade 45, after flowing out, current flow to the front of blade 45 from base ring 47, because blade 45 has torsional angle, make blade 45 under the effect of flowing water, move backward, flowing water is discharged a plurality of blades 45 later and is located on web 42 circumference from draft tube 46 from blade 45 front surface upper reaches, and each blade 45 is provided with at interval, blade 45 and commentaries on classics, the position that wheel body 42 connects is the inboard of blade 45, and blade 45 is the outside away from the position of web 42.Please refer to Fig. 3 b, blade 45 shape of cross section front and rear shapes are the arc of impeller by the inboard sinking of lateral impeller, blade 45 shape of cross sections are whole progressively to raise to the outside for inboard, the shape of progressively heaving, the anterior arc radius of blade 45 cross sections is progressively increased to the outside by blade 45 inboards, blade 45 cross section front wires are front molded lines 45A, and blade 45 anterior close web 42 inboard front molded lines are lower than front, blade 45 outside molded lines.Blade 45 inboard thickness guarantee that greater than blade 45 thickness as outside blade 45 can not rupture.The runner of this structure blade 45 is installed, and conveyance capacity strengthens, and big flow operating mode efficient strengthens greatly, and the optimum operating condition specific discharge strengthens, and the runner specific speed improves.The shape of cross section of existing blade 45 is shown in Fig. 3 a, and blade 45 cross section front wires are front molded lines 45A, and blade 45 inboards to the thickness as outside of existing impeller progressively reduces, and blade 45 inboard front molded lines are higher than front, blade outside molded lines.Through experimental test, the self-contained axial flow of height ratio speed that this blade 45 is installed is decided oar formula hydraulic generator unit with respect to each 1 group in existing hydraulic turbine generator, the big 0.338～0.4212m of runner optimum operating condition specific discharge
3/ s, big flow efficient improve 3%～8%, and the optimum operating condition specific speed improves 100mkW.Please refer to Fig. 3 b, blade 45 inboards are protrusion arc 45C with web 42 welding parts, increase blade 45 and web 42 bonding areas, and blade 45 combines more firm with web 42, and runner is not fragile.
The self-contained axial flow of height ratio speed of the present utility model is decided oar formula hydraulic generator unit, can also be on the basis of previous embodiment, and being further designed to blade 45 torsional angle angles is between 25 ° to 45 °.Blade 45 torsional angles are the poor of runner inboard and runner outside laying angle, and laying angle is the angle of blade 45 strings of a musical instrument and horizontal plane, and blade 45 inboard laying angles are big, and blade 45 outside laying angles are little, and the impeller torsional angle is no more than 20 ° usually at present.Blade 45 torsional angle angles are enlarged to 25 ° between 45 ° the time, blade 45 inboards and outside blade 45 laying angle difference are big, outside difference industry is bigger in the blade 45 water inlet limit laying angles, be applicable to different incoming flow angles respectively, guarantee always to have in the larger context one section angle of attack less or approach 0, thereby guaranteed bigger Applicable scope and high efficiency scope.When blade 45 torsional angle angles are 25 ° to 45 °, under the constant condition of blade 45 outer rims, blade 45 inboard aperture efficiencies are bigger, overcurrent is big, make the optimum district of runner to big flow excursion, in big flow working area, under the similarity condition, can guarantee that blade 45 outer rim laying angles are less, the efficient under the high unit speed is higher.Further preferred scheme is that blade 45 torsional angle angles are between 25 ° to 30 °.The runner that the torsional angle angle is respectively 20 °, 25 °, 28 °, 30 °, 38 ° and 45 ° carries out experimental test under the same conditions, torsional angle is that the runner of 25 °, 28 °, 30 °, 38 ° and 45 ° is that 20 ° runner inflow-rate of water turbine increases by 8%, 11%, 9%, 7% and 6% respectively with respect to torsional angle, and the efficient under the unit speed improves 15%, 22%, 17%, 14% and 10% respectively.Can also be that blade 45 distortions are " X " shape, can strengthen inflow-rate of water turbine, improve big flow district efficient, improve cavitation and stability.
The self-contained axial flow of height ratio speed of the present utility model is decided oar formula hydraulic generator unit, still is on aforementioned each embodiment's basis, further improves.Can be that above-mentioned movable guide vane 43 is positioned at base ring 47 horizontally disposed upper, annular conduits 471 (being also referred to as the horizontal annular conduit), current substantially horizontal in upper, annular conduit 471 flows, current turn to that vertical moves downward in lower annular conduit 47 (being also referred to as the vertical ring duct) after by turning conduit 472, the vertical ring duct is positioned at blade 45 tops, conduit 472 flex point diameters in turning are 1.101 times to 1.11 times of runner diameter, preferably 1.107 times, conduit 472 radius of curvature in turning increase gradually.The base ring 47 of this spline structure has not only alleviated the loss that this place produces because of separation of flow whirlpool, and has reduced the current loss in wedge type district, stator outlet port.Through to the experimental test of water turbine that conduit 472 flex point diameters in turning are respectively the base ring 47 of 1.101 times, 1.107 times, 1.11 times of runner diameter and 1.121 times is installed, 1.101 times, 1.107 times, 1.11 times the base ring 47 that conduit 472 flex point diameters in turning are respectively runner diameter is 1.121 times of flowing water losses few 7%, 11% and 8% of runner diameter with respect to turning conduit 472 diameters.
The self-contained axial flow of height ratio speed of the present utility model is decided oar formula hydraulic generator unit, on the basis of previous embodiment, the spiral case 41 that can also be water turbine is circular metal spiral case 41, use the advantage of circular metal spiral case 41 to be, circular volute 41 makes current meet obstructions to reduce, the current loss is fewer, and the advantage of metal spiral case 41 is, dismounting is more more convenient than concrete spiral casing 41, in light weight, install and transport more convenient, the maintenance also more convenient, when changing the parts such as runner of enclosure interior as needs, more convenient, and save cost.Generator 1 detachably is installed on the spiral case 41 by connecting base 2, and speed regulator 3 is installed on the spiral case 41, does not need to establish in addition 1 layer in generator like this, compact structure.Generator 1 removably connects in water turbine by connecting base 2, and connecting base 2 can be mounted in housing top, and generator 1 and housing can be dismantled like this, are convenient for changing or keep in repair the miscellaneous part in runner and the water turbine.
Above-mentionedly only several specific embodiments in the utility model are illustrated; but can not be as protection domain of the present utility model; every equivalence of having done according to the design spirit in the utility model changes or modifies, and all should think to fall into protection domain of the present utility model.
Claims (10)
1. the self-contained axial flow of height ratio speed is decided oar formula hydraulic generator unit, comprise water turbine, generator (1) and speed regulator (3), described speed regulator (3) is connected with described water turbine, described generator (1) is connected with described water turbine, described water turbine comprises spiral case (41) and is positioned at the inner runner of spiral case (41), seat ring, movable guide vane (43), base ring (47) and draft tube (46), described runner comprises web (42) and around the blade of being located on the described web (42) (45), described spiral case (41) is provided with water intake, described current are successively by spiral case (41) water intake, seat ring, movable guide vane (43), base ring (47) and runner, and by draft tube (46) discharge, described web (42) is fixedlyed connected with described generator (1) main shaft, it is characterized in that: described blade (45) cross section front and rear is shaped as the arc that described blade (45) progressively sinks near the inboard of web (42) to described blade (45) away from the outside of web (42), the inboard thickness of described blade (45) is greater than described thickness as outside, the anterior arc radius of described blade (45) progressively increases to described blade (45) outside by described blade (45) is inboard, and the anterior inboard front molded lines near web (42) of described blade (45) is lower than front, described blade (45) outside molded lines.
2. the self-contained axial flow of height ratio speed according to claim 1 is decided oar formula hydraulic generator unit, and it is characterized in that: described blade (45) torsional angle angle value is an any number between 25 ° to 45 °.
3. the self-contained axial flow of height ratio speed according to claim 2 is decided oar formula hydraulic generator unit, and it is characterized in that: described blade (45) torsional angle angle value is an any number between 25 ° to 30 °.
4. the self-contained axial flow of height ratio speed according to claim 1 is decided oar formula hydraulic generator unit, it is characterized in that: described movable guide vane (43) is positioned at described base ring (47) upper level ring duct (471), described base ring (47) bottom vertical ring duct (473) is communicated with described upper level ring duct (471) by turning conduit (472), described bottom vertical ring duct (473) is positioned at the top of described blade (45), described turning conduit (472) flex point diameter is that turning conduit (472) radius of curvature increases gradually between 1.101 times to 1.11 times of runner diameter.
5. the self-contained axial flow of height ratio speed according to claim 4 is decided oar formula hydraulic generator unit, and it is characterized in that: described turning conduit (472) flex point diameter is 1.107 times of runner diameter.
6. decide oar formula hydraulic generator unit according to the self-contained axial flow of the described height ratio speed of any claim of claim 1 to 3, it is characterized in that: described movable guide vane (43) is positioned at described base ring (47) upper level ring duct (471), described base ring (47) bottom vertical ring duct (473) is communicated with described upper level ring duct (471) by turning conduit (472), described bottom vertical ring duct (473) is positioned at the top of described blade (45), described turning conduit (472) flex point diameter is that turning conduit (472) radius of curvature increases gradually between 1.101 times to 1.11 times of runner diameter.
7. decide oar formula hydraulic generator unit according to the self-contained axial flow of the described height ratio speed of any claim of claim 1 to 5, it is characterized in that: described spiral case (41) is a circular metal spiral case (41).
8. the self-contained axial flow of height ratio speed according to claim 7 is decided oar formula hydraulic generator unit, and it is characterized in that: described generator (1) detachably is installed on the described spiral case (41) by connecting base (2), and described speed regulator (3) is installed on the spiral case (41).
9. decide oar formula hydraulic generator unit according to the self-contained axial flow of the described height ratio speed of any claim in the claim 1 to 5, it is characterized in that: described generator (1) removably connects by connecting base (2) and described water turbine.
10. decide oar formula hydraulic generator unit according to the self-contained axial flow of the described height ratio speed of arbitrary claim in the claim 1 to 5, it is characterized in that: described blade (45) distortion is " X " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201692908U CN201065807Y (en) | 2007-07-10 | 2007-07-10 | High specific speed packaged axial flow fixed paddle type turbine generation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201692908U CN201065807Y (en) | 2007-07-10 | 2007-07-10 | High specific speed packaged axial flow fixed paddle type turbine generation unit |
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| Publication Number | Publication Date |
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| CN201065807Y true CN201065807Y (en) | 2008-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201692908U Expired - Fee Related CN201065807Y (en) | 2007-07-10 | 2007-07-10 | High specific speed packaged axial flow fixed paddle type turbine generation unit |
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| CN (1) | CN201065807Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032090A (en) * | 2009-09-30 | 2011-04-27 | 湖北广水水电设备制造有限公司 | Small-size metal volute axial-flow vertical type water turbine |
| CN102278260A (en) * | 2011-07-14 | 2011-12-14 | 中国水利水电科学研究院 | Parent-fish-type movable propeller turbine |
| CN109253036A (en) * | 2018-11-15 | 2019-01-22 | 湖南红太东方机电装备股份有限公司 | A kind of permanent-magnetic variable-frequency turbine-generator units |
| CN114567120A (en) * | 2022-02-21 | 2022-05-31 | 湖南红太东方机电装备股份有限公司 | Outer rotor permanent magnet hydraulic generator and hydraulic generator set |
-
2007
- 2007-07-10 CN CNU2007201692908U patent/CN201065807Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032090A (en) * | 2009-09-30 | 2011-04-27 | 湖北广水水电设备制造有限公司 | Small-size metal volute axial-flow vertical type water turbine |
| CN102278260A (en) * | 2011-07-14 | 2011-12-14 | 中国水利水电科学研究院 | Parent-fish-type movable propeller turbine |
| CN102278260B (en) * | 2011-07-14 | 2013-06-05 | 中国水利水电科学研究院 | Parent-fish-type movable propeller turbine |
| CN109253036A (en) * | 2018-11-15 | 2019-01-22 | 湖南红太东方机电装备股份有限公司 | A kind of permanent-magnetic variable-frequency turbine-generator units |
| CN114567120A (en) * | 2022-02-21 | 2022-05-31 | 湖南红太东方机电装备股份有限公司 | Outer rotor permanent magnet hydraulic generator and hydraulic generator set |
| CN114567120B (en) * | 2022-02-21 | 2024-02-06 | 湖南红太东方机电装备股份有限公司 | Outer rotor permanent magnet hydraulic generator and hydraulic generator set |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20140710 |
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| EXPY | Termination of patent right or utility model |