CN103742334A - Through-flow water turbine with front and rear symmetrical constant-width movable guide blades - Google Patents
Through-flow water turbine with front and rear symmetrical constant-width movable guide blades Download PDFInfo
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- CN103742334A CN103742334A CN201310738483.0A CN201310738483A CN103742334A CN 103742334 A CN103742334 A CN 103742334A CN 201310738483 A CN201310738483 A CN 201310738483A CN 103742334 A CN103742334 A CN 103742334A
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- movable guide
- guide vane
- wide movable
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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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- 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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Abstract
The invention discloses a through-flow water turbine with front and rear symmetrical constant-width movable guide blades. The water turbine comprises a forward water inflow passage, a shaft, a supporting frame, a two-way power generation rotation wheel, a reverse water inflow passage, a power generator and a speed increaser. The water turbine is characterized by further comprising a front constant-width movable guide blade and a rear constant-width movable guide blade. The front constant-width movable guide blade is arranged between the forward water inflow passage and the two-way power generation rotation wheel. The rear constant-width movable guide blade is arranged between the two-way power generation rotation wheel and the reverse water inflow passage. Longitudinal sections of the front constant-width movable guide blade and the rear constant-width movable guide blade are in two-end streamline pointed wing shapes and are arranged symmetrically on the two sides of the two-way power generation rotation wheel. By means of the water turbine, both the forward power generation efficiency and the reverse power generation efficiency of the power generator set can be improved, so that the total power generation efficiency of the power generator set is further improved, and the water turbine is applicable to various low water head tidal power stations.
Description
Technical field
The invention belongs to fluid machinery and hydroelectric project equipment technical field, particularly relate to a kind of tubular turbine with the symmetrical wide movable guide vane in front and back.
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Background technique
Along with the large-scale development of China's hydroelectric resources, belong to the middle and high head website that economic indicator is good fewer and feweri, develop low water head run-off river power station has particularly become the focus of research and has entered the practicability stage the exploitation of tidal energy thereupon.Known tubular turbine is because its inflow-rate of water turbine is large, rotating speed is high and efficiency is high, and efficient district is wide, compact structure and the advantage such as layout is simple and become a kind of most economical and suitable water turbine pattern in low water head water energy development, how to utilize these advantages develop a kind of can be applied to tidal power station, low water head, the large two-way shaft tubular formula of flow unit are significant efficiently.
The oblique water distributor of the many employings of tubular turbine at present, movable guide vane is distributed on conical surface, is called cone guide vane.Because tubular unit does not have spiral case, fixed guide vane is conventionally only played a supporting role and is not changed the circular rector that liquid flows, and the required circular rector of runner provides by movable guide vane, and the performance of movable guide vane has direct impact to unit operation usefulness.Known technology demonstration, it is the structure of inlet guide vane that existing bidirectional tidal generating power station adopts movable guide vane mostly.As Chinese patent application 201210511304.5 discloses a kind of " low water head shaft tubular bidirectional high-efficiency rotary wheel of water turbine and electromechanical assembly thereof and supporting runner ", this device comprises runner and dynamo-electric part, and described runner section mainly comprises inlet segment, vertical shaft section, stator section, runner section and tail water pipeline section; Described dynamo-electric part mainly comprises generator, speed increaser, movable guide vane, main shaft and water turbine.This device adopts the structure of preposition movable guide vane, although can be by regulating the fit angle of movable guide vane and blade, produce the hydraulic performance of good forward generating, but when oppositely generating electricity, because there is no rearmounted movable guide vane, current do not form certain circular rector before entering runner, can not coordinate preferably with blade, cause the waterpower poor-performing that oppositely generates electricity.
The paper that Yang Chunxia delivers " adopts the two-way power generation performance research of morning and evening tides unit (Bidirectional Power Performance of a Tidal Unit with Unilateral and Double Guide Vanes) of one-sided-bilateral activity stator ", studied and adopted the one-sided and impact of two kinds of multi-form stators of bilateral activity stator on tubular morning and evening tides unit hydraulic performance, when adopting bilateral activity stator, its forward generating efficiency is 85.81%, oppositely generating efficiency is 80.66%, the total efficiency of forward and oppositely generating is better than adopting one-sided movable guide vane form, although adopt bilateral activity stator can improve generating efficiency, but also exist following not enough: when generating electricity forward or backwards simultaneously, current will produce whirlpool after water outlet stator enters outlet passage, both cause forward generating efficiency to reduce, and affect again reverse generating efficiency and improve.
How to overcome the deficiencies in the prior art and become one of emphasis difficult problem urgently to be resolved hurrily in current fluid machinery and hydroelectric project equipment technical field.
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Summary of the invention
The object of the invention is provides a kind of tubular turbine with the symmetrical wide movable guide vane in front and back for overcoming the deficiencies in the prior art, the present invention not only can improve the forward generating efficiency of generator set, and can improve the reverse generating efficiency of generator set, generator set generating total efficiency is further improved, be applicable to the tubular turbine of various low water head tidal power stations.
A kind of tubular turbine with the symmetrical wide movable guide vane in front and back proposing according to the present invention, it comprises forward water inlet flow channel, vertical shaft, supporting frame, two-way generating runner, reverse water inlet flow channel, generator and speed increaser, wherein: generator is connected by speed increaser with two-way generating runner; Generator and speed increaser are placed in vertical shaft; Characterized by further comprising preposition wide movable guide vane and rearmounted wide movable guide vane, this preposition wide movable guide vane is arranged between forward water inlet flow channel and two-way generating runner; The wide movable guide vane of this postposition is arranged between two-way generating runner and reverse water inlet flow channel; The longitudinal cross-section of described preposition wide movable guide vane and rearmounted wide movable guide vane is two ends streamline tapered wing shape, is arranged in symmetrically two-way generating runner both sides, and each stator two ends are spheric structure, and each stator inner ball surface and outer spherical surface distortion angle are 10 ° ~ 15 °; Stator rotary centerline and the angle theta between unit rotary centerline of described preposition wide movable guide vane and rearmounted wide movable guide vane setting are 80 °, Sealing Surface and unit rotary centerline that each stator forms are unsettled cross-distribution, and on each stator intermediate cross-section molded line, 20 somes coordinate in rectangular coordinate system is as following table 1:
Table 1
| Sequence number | x | y | Sequence number | x | y |
| 6001 | -145.99 | 0 | 6011 | 166.95 | 0 |
| 6002 | -128 | 3.15 | 6012 | 128 | -4.22 |
| 6003 | -96 | 7.83 | 6013 | 96 | -7.83 |
| 6004 | -64 | 10.8 | 6014 | 64 | -11.5 |
| 6005 | -32 | 13.62 | 6015 | 32 | -14.34 |
| 6006 | 0 | 15.25 | 6016 | 0 | -15.25 |
| 6007 | 32 | 14.34 | 6017 | -32 | -13.62 |
| 6008 | 64 | 11.5 | 6018 | -64 | -10.8 |
| 6009 | 96 | 7.83 | 6019 | -96 | -7.83 |
| 6010 | 128 | 4.22 | 6020 | -128 | -3.15 |
Two curvilinear equations after matching are respectively:
y?=?3E-11x
5?+?9E-09x
4?-?7E-07x
3?-?0.0008x
2?+?0.0067x?+?14.806；
y?=?-3E-11x
5?-?9E-09x
4?+?7E-07x
3?+?0.0008x
2?-?0.0067x?-?14.806。
Working principle of the present invention is: generator is arranged in the upstream vertical shaft of tubular turbine, the section of vertical shaft is streamlined.When forward generates electricity, current enter forward water inlet flow channel, walk around vertical shaft, the runner envelope that converges and enter tubular turbine at the preposition wide movable guide vane place of tubular turbine, water impact runner blade, drives tubular turbine output shaft to rotate by runner blade switching energy, and now rearmounted wide movable guide vane is full-gear, current are by rearmounted wide movable guide vane, through oppositely water inlet flow channel outflow; When reverse generating, current are flowed into by reverse water inlet flow channel, current enter the runner envelope of tubular turbine by the wide movable guide vane of postposition, water impact runner blade, by runner blade switching energy, drive tubular turbine output shaft to rotate, now preposition wide movable guide vane is full-gear, and current are by preposition wide movable guide vane, walk around vertical shaft, through forward water inlet flow channel, flow out.
The present invention compared with prior art its remarkable advantage is: the one, and stator when the present invention can either guarantee stator unlatching rotates flexibly, inflow-rate of water turbine is large and water guide performance is good, can guarantee that again the Surface of action water shutoff performance at stator two ends when stator is closed is good.The 2nd, the present invention has adopted wing fusiform wide stator, and water conservancy diversion better effects if, can not produce the phenomenons such as whirlpool, the separation of flow, thereby has reduced the hydraulic loss of stator section, has improved water turbine generating efficiency; When forward generates electricity, by regulating preposition wide movable guide vane angle, make current before entering runner, form certain circular rector, keep the hydraulic performance of good forward generating, as when rated head is 2.5 meters, the present invention can make forward generating efficiency reach 89%; When reverse generating, by regulating rearmounted wide movable guide vane, make current before entering runner, form certain circular rector, greatly improve reverse generating efficiency, as when rated head is 2.5 meters, the present invention can make reverse generating efficiency reach 82%.The 3rd, the present invention is when declared working condition, blade angle of the present invention is that 70 °, blade angle adjustment range are-4 ° to+4 °, runner blade in running and stator keep synergy simultaneously, thereby improved generating efficiency, particularly at head luffing and changes in flow rate, all can steadily generate electricity and keep higher generating efficiency large in the situation that.The 4th, the present invention, still can normal power generation while being 2 meters as head when head is lower, large quantum jump the limiting value of prior art power generation conditions.The present invention is widely used in the tubular turbine of various low water head tidal power stations.
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Accompanying drawing explanation
Fig. 1 is the plan view of a kind of tubular turbine structure with the symmetrical wide movable guide vane in front and back of proposing of the present invention.
Fig. 2 is the front view of a kind of tubular turbine structure with the symmetrical wide movable guide vane in front and back of proposing of the present invention.
Fig. 3 is the layout schematic diagram of the symmetrical wide movable guide vane in the front and back that propose of the present invention.
Fig. 4 is the wide movable guide vane of the symmetry intermediate cross-section airfoil structure schematic diagram that the present invention proposes.
Fig. 5 is the preposition wide movable guide vane form structure schematic diagram that the present invention proposes.
Fig. 6 is the wide movable guide vane form structure of the postposition schematic diagram that the present invention proposes.
Fig. 7 is the wide movable guide vane regulation of the symmetry scope schematic diagram that the present invention proposes.
Description of reference numerals: forward water inlet flow channel (1), vertical shaft (2), generator (3), speed increaser (4), supporting frame (5), preposition wide movable guide vane (6), two-way generating runner (7), rearmounted wide movable guide vane (8), reverse water inlet flow channel (9), stator inner ball surface (10), stator outer spherical surface (11), stator rotary centerline (12), stator full-gear (13), stator complete shut-down state (14), angle between stator rotary centerline (12) and unit rotary centerline (15) is θ.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
In conjunction with Fig. 1, Fig. 2 and Fig. 4, a kind of tubular turbine with the symmetrical wide movable guide vane in front and back that the present invention proposes, it comprises forward water inlet flow channel (1), vertical shaft (2), supporting frame (5), two-way generating runner (7), reverse water inlet flow channel (9), generator (3) and speed increaser (4), and described generator (3) is connected by speed increaser (4) with two-way generating runner (7); Generator (3) and speed increaser (4) are placed in vertical shaft (2); Wherein: also comprise preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8), this preposition wide movable guide vane (6) is arranged between forward water inlet flow channel (1) and two-way generating runner (7); The wide movable guide vane of this postposition (8) is arranged between two-way generating runner (7) and reverse water inlet flow channel (9); The longitudinal cross-section of described preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8) is two ends streamline tapered wing shape, be arranged in symmetrically two-way generating runner (7) both sides, each stator two ends are spheric structure, and each stator inner ball surface and outer spherical surface distortion angle are 10 ° ~ 15 °; The stator rotary centerline (12) that described preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8) arrange and the angle theta between unit rotary centerline (15) are 80 °, Sealing Surface and unit rotary centerline (15) that each stator forms are unsettled cross-distribution, on each stator intermediate cross-section molded line, as shown in Table 1 above, two curvilinear equations after matching are respectively 20 somes coordinate in rectangular coordinate system:
y?=?3E-11x
5?+?9E-09x
4?-?7E-07x
3?-?0.0008x
2?+?0.0067x?+?14.806；
y?=?-3E-11x
5?-?9E-09x
4?+?7E-07x
3?+?0.0008x
2?-?0.0067x?-?14.806。
The further preferred version of the present invention is: described preposition wide movable guide vane equates with the two ends width of rearmounted wide movable guide vane; Preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8) are respectively along circumferentially distributing and arrange symmetrically, and its quantity is respectively 10,12 or 14; Preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8) are controlled water flow and water (flow) direction; When forward generates electricity, rearmounted wide movable guide vane (8) angle is for keeping full-gear; While oppositely generating electricity, preposition wide movable guide vane (6) angle is for keeping full-gear, and preposition wide movable guide vane (6) or rearmounted wide movable guide vane (8) angle from stator full-gear (13) to stator complete shut-down state (14) is 88 °; The cross section of vertical shaft (2) is streamlined.
In conjunction with Fig. 3 and Fig. 4, the longitudinal cross-section of preposition wide movable guide vane of the present invention (6) and rearmounted wide movable guide vane (8) is two ends streamline tapered wing shape, is arranged in symmetrically the both sides of two-way generating runner (7); Stator two ends are spheric structure, and inner ball surface (10) is connected with stator wheel hub, and outer spherical surface (11) is connected with regulating ring of wicket gate; The stator rotary centerline (12) that described preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8) arrange and the angle theta between unit rotary centerline (15) are 80 °, and Sealing Surface and unit rotary centerline (15) that stator forms are unsettled cross-distribution.
In conjunction with Fig. 5, Fig. 6 and Fig. 7, preposition wide movable guide vane of the present invention (6) and rearmounted wide movable guide vane (8) are controlled water flow and water (flow) direction; When forward generates electricity, rearmounted wide movable guide vane (8) angle is for keeping full-gear; When reverse generating, preposition wide movable guide vane (6) angle is for keeping full-gear, preposition wide movable guide vane (6) or rearmounted wide movable guide vane (8) angle from stator full-gear (13) to stator complete shut-down state (14) is 88 °, the inflow-rate of water turbine of its oblique water distributor is large, and energy conversion efficiency is high.
Specific embodiment of the invention process is: generator (3) is arranged in the vertical shaft (2) of the upstream of water turbine, the section of vertical shaft (2) is streamlined; When forward generates electricity, current enter forward water inlet flow channel (1), walk around vertical shaft (2), at the preposition wide movable guide vane (6) of tubular turbine, locate to converge and enter the runner envelope of tubular turbine, the two-way generating runner of water impact (7) blade, by two-way generating runner (7) blade switching energy, drive the rotation of tubular turbine output shaft, now rearmounted wide movable guide vane (8) is full-gear, current are by rearmounted wide movable guide vane (8), through oppositely water inlet flow channel (9) outflow; When reverse generating, current are flowed into by reverse water inlet flow channel (9), current enter the runner envelope of tubular turbine by rearmounted wide movable guide vane (8), the two-way generating runner of water impact (7) blade, by the rotation of two-way generating runner (7) blade switching energy band water turbine output shaft, now preposition wide movable guide vane (6) is full-gear, and current are by preposition movable guide vane (6), walk around vertical shaft (2), through forward water inlet flow channel (1), flow out.
The explanation not relating in the specific embodiment of the present invention belongs to the known technology of related domain, can be implemented with reference to known technology.
The present invention, through validation trial, has obtained satisfied effect.
Claims (5)
1. the tubular turbine with the symmetrical wide movable guide vane in front and back, it comprises forward water inlet flow channel (1), vertical shaft (2), supporting frame (5), two-way generating runner (7), reverse water inlet flow channel (9), generator (3) and speed increaser (4), wherein: generator (3) is connected by speed increaser (4) with two-way generating runner (7); Generator (3) and speed increaser (4) are placed in vertical shaft (2); Characterized by further comprising preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8); This preposition wide movable guide vane (6) is arranged between forward water inlet flow channel (1) and two-way generating runner (7); The wide movable guide vane of this postposition (8) is arranged between two-way generating runner (7) and reverse water inlet flow channel (9); The longitudinal cross-section of described preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8) is two ends streamline tapered wing shape, be arranged in symmetrically two-way generating runner (7) both sides, each stator two ends are spheric structure, and each stator inner ball surface and outer spherical surface distortion angle are 10 ° ~ 15 °; The stator rotary centerline (12) that described preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8) arrange and the angle theta between unit rotary centerline (15) are 80 °, Sealing Surface and unit rotary centerline (15) that each stator forms are unsettled cross-distribution, and on each stator intermediate cross-section molded line, 20 somes coordinate in rectangular coordinate system is as following table 1:
Table 1
Two curvilinear equations after matching are respectively:
y?=?3E-11x
5?+?9E-09x
4?-?7E-07x
3?-?0.0008x
2?+?0.0067x?+?14.806；
y?=?-3E-11x
5?-?9E-09x
4?+?7E-07x
3?+?0.0008x
2?-?0.0067x?-?14.806。
2. a kind of tubular turbine with the symmetrical wide movable guide vane in front and back according to claim 1, is characterized in that described preposition wide movable guide vane (6) equates with the two ends width of rearmounted wide movable guide vane (8).
3. a kind of tubular turbine with the symmetrical wide movable guide vane in front and back according to claim 1, it is characterized in that preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8) are respectively along circumferentially distributing and arrange symmetrically, its quantity is respectively 10,12 or 14.
4. according to a kind of tubular turbine with the symmetrical wide movable guide vane in front and back described in claim 1,2 or 3, it is characterized in that preposition wide movable guide vane (6) and rearmounted wide movable guide vane (8) control water flow and water (flow) direction; When forward generates electricity, rearmounted wide movable guide vane (8) angle is for keeping full-gear; When reverse generating, preposition wide movable guide vane (6) angle is for keeping full-gear, and preposition wide movable guide vane (6) or rearmounted wide movable guide vane (8) angle from stator full-gear (13) to stator complete shut-down state (14) is 88 °.
5. a kind of tubular turbine with the symmetrical wide movable guide vane in front and back according to claim 1, is characterized in that the cross section of vertical shaft (2) is streamlined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310738483.0A CN103742334B (en) | 2013-12-27 | 2013-12-27 | A kind of tubular turbine with the symmetrical wide movable guide vane in front and back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310738483.0A CN103742334B (en) | 2013-12-27 | 2013-12-27 | A kind of tubular turbine with the symmetrical wide movable guide vane in front and back |
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| Publication Number | Publication Date |
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| CN103742334A true CN103742334A (en) | 2014-04-23 |
| CN103742334B CN103742334B (en) | 2016-02-03 |
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| CN201310738483.0A Expired - Fee Related CN103742334B (en) | 2013-12-27 | 2013-12-27 | A kind of tubular turbine with the symmetrical wide movable guide vane in front and back |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412668A (en) * | 2018-02-12 | 2018-08-17 | 长沙理工大学 | A kind of double duct hydraulic turbine electric generator systems |
| CN109798215A (en) * | 2019-03-27 | 2019-05-24 | 西北农林科技大学 | A kind of novel super-low specific speed pump turbine |
| CN112564598A (en) * | 2020-12-01 | 2021-03-26 | 西安交通大学 | Portable power generation box capable of utilizing water energy and solar energy |
| US11060500B2 (en) | 2018-10-30 | 2021-07-13 | HangZhou JiangHe Hydro-Electrical Sci. & Tech. Co. | Ducted bidirectional tidal current power station system |
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| WO2003025385A2 (en) * | 2001-09-17 | 2003-03-27 | Clean Current Power Systems Inc. | Underwater ducted turbine |
| CN201221433Y (en) * | 2008-07-03 | 2009-04-15 | 水利部杭州机械设计研究所 | Bidirectional six-operating condition tide machine unit |
| US20100260596A1 (en) * | 2009-04-13 | 2010-10-14 | Alexander Gokhman | Hydraulic bulb turbine with mixed-flow propeller runner |
| CN101956641A (en) * | 2010-10-19 | 2011-01-26 | 哈尔滨工程大学 | Guiding device for horizontal-shaft tidal generation water turbine |
| CN102182622A (en) * | 2011-04-07 | 2011-09-14 | 清华大学 | Six-operating-condition bidirectional tide power generation water turbine |
| CN103233846A (en) * | 2012-12-04 | 2013-08-07 | 河海大学 | Low water head vertical shaft through-flow bi-directional efficient turbine runner as well as electromechanical device and mated flow passage thereof |
-
2013
- 2013-12-27 CN CN201310738483.0A patent/CN103742334B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003025385A2 (en) * | 2001-09-17 | 2003-03-27 | Clean Current Power Systems Inc. | Underwater ducted turbine |
| CN201221433Y (en) * | 2008-07-03 | 2009-04-15 | 水利部杭州机械设计研究所 | Bidirectional six-operating condition tide machine unit |
| US20100260596A1 (en) * | 2009-04-13 | 2010-10-14 | Alexander Gokhman | Hydraulic bulb turbine with mixed-flow propeller runner |
| CN101956641A (en) * | 2010-10-19 | 2011-01-26 | 哈尔滨工程大学 | Guiding device for horizontal-shaft tidal generation water turbine |
| CN102182622A (en) * | 2011-04-07 | 2011-09-14 | 清华大学 | Six-operating-condition bidirectional tide power generation water turbine |
| CN103233846A (en) * | 2012-12-04 | 2013-08-07 | 河海大学 | Low water head vertical shaft through-flow bi-directional efficient turbine runner as well as electromechanical device and mated flow passage thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412668A (en) * | 2018-02-12 | 2018-08-17 | 长沙理工大学 | A kind of double duct hydraulic turbine electric generator systems |
| CN108412668B (en) * | 2018-02-12 | 2020-03-27 | 长沙理工大学 | Double-duct water turbine power generation system |
| US11060500B2 (en) | 2018-10-30 | 2021-07-13 | HangZhou JiangHe Hydro-Electrical Sci. & Tech. Co. | Ducted bidirectional tidal current power station system |
| CN109798215A (en) * | 2019-03-27 | 2019-05-24 | 西北农林科技大学 | A kind of novel super-low specific speed pump turbine |
| CN109798215B (en) * | 2019-03-27 | 2020-05-29 | 西北农林科技大学 | Novel ultra-low specific speed water pump turbine |
| CN112564598A (en) * | 2020-12-01 | 2021-03-26 | 西安交通大学 | Portable power generation box capable of utilizing water energy and solar energy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103742334B (en) | 2016-02-03 |
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