CN110486217B - Disrotatory bidirectional axial flow water pump turbine - Google Patents
Disrotatory bidirectional axial flow water pump turbine Download PDFInfo
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- CN110486217B CN110486217B CN201910655282.1A CN201910655282A CN110486217B CN 110486217 B CN110486217 B CN 110486217B CN 201910655282 A CN201910655282 A CN 201910655282A CN 110486217 B CN110486217 B CN 110486217B
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- guide vane
- guide
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- axial
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- 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
- F03B13/264—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 using the horizontal flow of water resulting from tide movement
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- 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
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/126—Rotors for essentially axial flow, e.g. for propeller turbines
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/181—Axial flow rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/548—Specially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Oceanography (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention provides a contra-rotating bidirectional axial flow water pump turbine, which comprises a pump shell and a fork pipe, wherein the pump shell is provided with a water inlet and a water outlet; the pump shell is symmetrically provided with fork tubes at two sides, impellers are symmetrically arranged in the pump shell, and transmission shafts of the impellers penetrate through the fork tubes to be connected with a transmission part; the transmission shaft is provided with along axial displacement's stator assembly, just stator assembly is located near the impeller. The guide vane assembly comprises a movable guide vane, a guide shaft and a guide vane shell; a guide vane shell is arranged between the fork tube and the pump shell, the guide vane shell is provided with an axial guide groove, the movable guide vane is connected with the transmission shaft through a sliding bearing, and one end of a movable guide vane blade is positioned in the axial guide groove; a guide shaft is installed at one end of any blade of the movable guide vane and is connected with a driving mechanism through a transmission mechanism for enabling the movable guide vane to move axially. The invention can improve the efficiency of the pump device by adjusting the clearance between the impeller and the guide vane.
Description
Technical Field
The invention relates to an axial flow pump device, in particular to a contra-rotating bidirectional axial flow pump water turbine.
Background
Tidal energy is a renewable energy source, efficient, clean, and can be developed and applied on a large scale. The tidal set can provide relatively continuous power in a bidirectional operation mode, has strong power grid adaptability and can operate in a peak-adjustable mode, but the efficiency is particularly low when the tidal set operates in a reverse direction to pump water. Because the disrotatory unit has higher efficiency, more compact structure, more stable performance curve and better cavitation resistance, the disrotatory technology is applied to the tidal power station, and the performance of the water pumping working condition of the unit is expected to be more effectively improved on the basis of fully exerting the power generation advantages, so that more potential energy is provided for next power generation. Counter-rotating technology is very rare in the field of pumps and turbines, especially in pump turbine units adapted to tidal power stations requiring multi-regime operation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a counter-rotating bidirectional axial flow water pump turbine which can be applied to a tidal unit to realize the performance improvement of basic functions such as forward and reverse power generation and forward and reverse water pumping, and meanwhile, the efficiency of a pump device can be improved by adjusting the gap between an impeller and a guide vane.
The present invention achieves the above-described object by the following technical means.
A contra-rotating bidirectional axial flow pump water turbine comprises a pump shell and a fork pipe; the pump shell is symmetrically provided with fork tubes at two sides, impellers are symmetrically arranged in the pump shell, and transmission shafts of the impellers penetrate through the fork tubes to be connected with a transmission part; the transmission shaft is provided with along axial displacement's stator assembly, just stator assembly is located near the impeller.
Further, the guide vane assembly comprises a movable guide vane, a guide shaft and a guide vane housing; a guide vane shell is arranged between the fork tube and the pump shell, the guide vane shell is provided with an axial guide groove, the movable guide vane is connected with the transmission shaft through a sliding bearing, and one end of a movable guide vane blade is positioned in the axial guide groove; a guide shaft is installed at one end of any blade of the movable guide vane and is connected with a driving mechanism through a transmission mechanism for enabling the movable guide vane to move axially.
Further, drive mechanism includes sliding guide, the sliding guide terminal surface is equipped with the recess, guide shaft and recess sliding fit, through sliding guide's swing, make guide shaft along axial displacement.
Further, the impellers are bidirectional flow impellers, and the rotation directions of the symmetrical impellers in the pump shell are opposite.
Further, guide vanes are arranged between the impellers in the pump shell and used for improving stability.
Further, the gap distance between the guide vane and the vane of the impeller is not less than 0.08 times of the diameter of the impeller.
Further, the included angle between the central lines of the fork pipes and the pump shell is 30-90 degrees.
Further, the transmission component is a generator motor, and the rotating speeds of the two generator motors are not synchronous.
The invention has the beneficial effects that:
1. the counter-rotating bidirectional axial flow pump water turbine can efficiently complete the working conditions of forward and reverse power generation, forward and reverse water pumping and the like required by a tidal power station.
2. Compared with the traditional tidal generator set, the counter-rotating bidirectional axial flow water pump water turbine has the advantages of more compact structure, stable performance curve, good cavitation resistance and the like.
3. According to the counter-rotating bidirectional axial flow pump turbine, when the pump turbine works under different working conditions, the efficiency of a unit is improved by adjusting the gap between the guide vane and the impeller.
4. According to the contra-rotating bidirectional axial flow water pump turbine, when the geometric parameters of the impeller and the geometric parameters of the guide vane are fixed, the clearance between the impeller and the guide vane is too large or too small, so that backflow occurs at the clearance, the hydraulic loss of the guide vane is increased, the ring quantity of the outlet speed of the guide vane is reduced, a low vortex area occurs at the water outlet flow channel, the hydraulic loss of the water outlet flow channel is increased, the efficiency of a pump device is reduced, and the problem is solved by adjusting the clearance between the impeller and the guide vane.
Drawings
Fig. 1 is a schematic structural diagram of a contra-rotating bidirectional axial-flow pump turbine according to the present invention.
FIG. 2 is a schematic view of a guide vane assembly according to the present invention.
Fig. 3 is a schematic diagram of the transmission mechanism of the present invention.
In the figure:
1-a first generator motor; 2-a first coupling; 3-a first seal assembly; 4-a first fork tube; 5-a first guide vane assembly; 6-a first impeller; 7-a pump housing; 8-a second impeller; 9-a second guide vane assembly; 10-a second fork tube; 11-a second seal assembly; 12-a second coupling; 13-a second generator motor; 14-a first drive shaft; 15-a second drive shaft; 501-movable guide vanes; 501 a-guide shaft; 502-a vane housing; 503-sliding guide rail; 504-gland; 505-a packing seal; 506-a drive mechanism; 701-guide vane.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
As shown in fig. 1, the counter-rotating bidirectional axial-flow pump turbine of the present invention comprises a pump housing 7, a first fork 4 and a second fork 10; the pump comprises a pump shell 7 and is characterized in that a first fork pipe 4 and a second fork pipe 10 are symmetrically arranged on two sides of the pump shell 7, a first impeller 6 and a second impeller 8 are symmetrically arranged in the pump shell 7, a first transmission shaft 14 connected to the first impeller 6 penetrates through the first fork pipe 4 to be connected with a first generating motor 1, and a first coupling 2 is arranged between the first generating motor 1 and the first transmission shaft 14. A first sealing assembly 3 is arranged between the first fork tube 4 and the first transmission shaft 14; a second transmission shaft 15 connected to the second impeller 8 passes through the second fork 10 to be connected with a second generator motor 13, and a second coupling 12 is arranged between the second generator motor 13 and the second transmission shaft 15. A second sealing assembly 11 is arranged between the second fork pipe 10 and the second transmission shaft 15; the first transmission shaft 14 is provided with a first guide vane assembly 5 moving along the axial direction, and the first guide vane assembly 5 is positioned near the first impeller 6; the second transmission shaft 15 is provided with a second guide vane assembly 9 moving along the axial direction, and the second guide vane assembly 9 is positioned near the second impeller 8; the included angle between the central lines of the first fork pipe 4, the second fork pipe 10 and the pump shell 7 is 30-90 degrees.
As shown in fig. 2 and 3, the second guide vane assembly 9 and the first guide vane assembly 5 have the same structure, and only the installation position is different, and the first guide vane assembly 5 is described in detail below, wherein the first guide vane assembly 5 comprises a movable guide vane 501, a guide shaft 501a and a guide vane housing 502; a guide vane shell 502 is arranged between the first fork tube 4 and the pump shell 7, a directional guide groove parallel to the central axis of the first transmission shaft 14 is processed on the inner wall surface of the guide vane shell 502, one end of a blade of the movable guide vane 501 is arranged in the directional guide groove, the movable guide vane 501 is connected with the first transmission shaft 14 through a sliding bearing, and one end of the blade of the movable guide vane 501 is arranged in the axial guide groove; under the action of the guide grooves, the movable guide vanes 501 are constrained in the circumferential direction and the radial direction and can only move axially. A guide shaft 501a is installed at one end of any blade of the movable guide vane 501, and the guide shaft 501a is connected with a driving mechanism 506 through a transmission mechanism and used for enabling the movable guide vane 501 to move axially. The transmission mechanism comprises a sliding guide rail 503, a groove is arranged on the end surface of the sliding guide rail 503, the guide shaft 501a is in sliding fit with the groove, and the guide shaft 501a moves along the axial direction through the swinging of the sliding guide rail 503. The gland 504 and packing seal 505 function to prevent leakage between the sliding guide rail 503 shaft and the vane housing 502. One end of the sliding guide 503 is connected to a driving mechanism 506, and the driving mechanism 506 may be a handwheel or a motor. When the geometric parameters of the first impeller 6 and the geometric parameters of the movable guide vane 501 are fixed, the clearance between the first impeller 6 and the movable guide vane 501 is too large or too small, so that backflow occurs at the clearance, and the hydraulic loss of the movable guide vane 501 is increased; at this time, the outlet speed of the movable guide vane 501 is reduced, which causes a low swirl region at the outlet flow passage, increases the hydraulic loss of the outlet flow passage, and reduces the efficiency of the pump device. The present invention can improve the efficiency of the pump device by adjusting the clearance between the first impeller 6 and the movable guide vane 501. When the pump turbine works under different working conditions, the efficiency of the unit is improved by adjusting the gap between the guide vane and the impeller.
The first impeller 6 and the second impeller 8 adopt a bidirectional flow design, namely, geometric parameters such as inlet and outlet liquid flow angles, inlet and outlet diameters and the like of the impeller blades are equal; the rotation directions of the first impeller 6 and the second impeller 8 are opposite, and other geometric dimensions adopt the same design.
The first impeller 6 and the second impeller 8 can generate strong turbulence between the first impeller 6 and the second impeller 8 due to the contra-rotating arrangement, so that the stability of the whole device is threatened, and the guide vanes 701 are arranged between the first impeller 6 and the second impeller 8 in the pump shell 7 and used for improving the stability. The gap distance between the guide vane 701 and the first impeller 6 or the second impeller 8 is not less than 0.08 times of the impeller diameter, otherwise, the dynamic and static interference between the guide vane 701 and the first impeller 6 or the second impeller 8 is increased, and the stability of the system is affected.
The rotating speeds of the first generator motor 1 and the second generator motor 13 are not synchronous, and in order to ensure that the shaft power of the device is close, the shaft power of the first impeller 6 or the second impeller 8 is adjusted by reducing the rotating speed of the second impeller 8 and adjusting the pipe resistance of a pipeline system.
The working principle is as follows:
the working condition of the positive water pump is as follows:
the first power generation motor 1 drives a first transmission shaft 14 and a first impeller 6 arranged at the other end of the first transmission shaft 14 to rotate through a first coupler 2; the second generator motor 13 drives a second transmission shaft 15 through a second coupling 12, and a second impeller 8 is mounted at the other end of the second transmission shaft 15 to rotate. The first impeller 6 and the second impeller 8 rotate in opposite directions. Under the co-action of the first impeller 6 and the second impeller 8, the fluid medium flows in from the inlet of the first fork 4 and flows out from the outlet of the second fork 10.
Reverse water pump operating mode:
the working principle is similar to the working condition of the forward water pump, and the rotating directions of the first generator motor 1 and the second generator motor 13 are changed simultaneously. Under the co-action of the first impeller 6 and the second impeller 8, the fluid medium flows out from the inlet of the first fork 4 and flows in from the outlet of the second fork 10.
The working condition of the forward water turbine is as follows:
the fluid medium flows in from the inlet of the first fork 4 and out from the outlet of the second fork 10. Under the action of water, the first impeller 6 and the second impeller 8 start to rotate in opposite directions, and finally the first generator motor 1 and the second generator motor 13 are driven to rotate and generate electricity.
Reverse hydraulic turbine operating mode:
the working principle is similar to the working condition of a forward water turbine, and the flow direction of the fluid medium is changed, the fluid medium flows out from the inlet of the first fork pipe 4 and flows in from the outlet of the second fork pipe 10. Under the action of water, the first impeller 6 and the second impeller 8 start to rotate in opposite directions, and finally the first generator motor 1 and the second generator motor 13 are driven to rotate and generate electricity.
In order to realize the efficient operation of the water pump turbine under each working condition, the invention adopts a bidirectional flow design, namely the geometric parameters of the inlet and outlet liquid flow angles, the inlet and outlet diameters and the like of the impeller blades are equal. Meanwhile, the rotation directions of the I-stage impeller 6 and the II-stage impeller 8 are opposite, and other geometric dimensions are designed in the same way.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (7)
1. A counter-rotating bidirectional axial flow pump turbine is characterized by comprising a pump shell (7) and fork pipes (4, 10); the pump is characterized in that fork pipes (4, 10) are symmetrically arranged on two sides of the pump shell (7), impellers (6, 8) are symmetrically arranged in the pump shell (7), and transmission shafts (14, 15) of the impellers (6, 8) penetrate through the fork pipes (4, 10) to be connected with a transmission part; the transmission shafts (14, 15) are provided with guide vane assemblies (5, 9) moving along the axial direction, and the guide vane assemblies (5, 9) are positioned near the impellers (6, 8); the rotation directions of the symmetrical impellers (6, 8) in the pump shell (7) are opposite.
2. A contra-rotating bi-directional axial-flow hydroturbine according to claim 1, wherein the guide vane assembly (5, 9) comprises a movable guide vane (501), a guide shaft (501a) and a guide vane housing (502); a guide vane shell (502) is arranged between the fork pipes (4, 10) and the pump shell (7), an axial guide groove is formed in the guide vane shell (502), the movable guide vane (501) is connected with the transmission shafts (14, 15) through a sliding bearing, and one end of a blade of the movable guide vane (501) is located in the axial guide groove; a guide shaft (501a) is installed at one end of any blade of the movable guide vane (501), and the guide shaft (501a) is connected with a driving mechanism (506) through a transmission mechanism and used for enabling the movable guide vane (501) to move axially.
3. A counter-rotating bidirectional axial-flow pump turbine according to claim 2, wherein the transmission mechanism comprises a sliding guide rail (503), a groove is arranged on the end surface of the sliding guide rail (503), the guide shaft (501a) is in sliding fit with the groove, and the guide shaft (501a) is moved axially by the swinging of the sliding guide rail (503).
4. A counter-rotating bi-directional axial-flow pump turbine according to claim 1, characterized in that guide vanes (701) are provided between the impellers (6, 8) in the pump housing (7) for improving stability.
5. A counter-rotating bi-directional axial flow pump turbine according to claim 4, characterized in that the clearance distance between the guide vanes (701) and the blades of the impellers (6, 8) is not less than 0.08 times the diameter of the impellers.
6. A contra-rotating bidirectional axial-flow pump turbine according to claim 4, wherein the included angle between the fork pipes (4, 10) and the center line of the pump casing (7) is 30-90 °.
7. A counter-rotating bi-directional axial-flow pump turbine according to claim 4, wherein the transmission member is a generator motor (1, 13), and the rotation speeds of the two generator motors (1, 13) are not synchronized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910655282.1A CN110486217B (en) | 2019-07-19 | 2019-07-19 | Disrotatory bidirectional axial flow water pump turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910655282.1A CN110486217B (en) | 2019-07-19 | 2019-07-19 | Disrotatory bidirectional axial flow water pump turbine |
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| Publication Number | Publication Date |
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| CN110486217A CN110486217A (en) | 2019-11-22 |
| CN110486217B true CN110486217B (en) | 2020-12-22 |
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| CN201910655282.1A Active CN110486217B (en) | 2019-07-19 | 2019-07-19 | Disrotatory bidirectional axial flow water pump turbine |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794893A (en) * | 2020-07-22 | 2020-10-20 | 重庆华能水电设备制造有限公司 | Double-turbine structure of pumped storage water turbine generator set |
| CN112780570B (en) * | 2020-12-17 | 2023-03-10 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Rim axial-flow pump |
| CN112682315A (en) * | 2020-12-17 | 2021-04-20 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Bidirectional axial flow pump |
| CN113931847A (en) * | 2021-09-23 | 2022-01-14 | 西安理工大学 | Reversible counter-rotating axial flow pump |
| CN114483603A (en) * | 2022-02-24 | 2022-05-13 | 贾轩闻 | Experimental device and experimental method for efficiency experiment of different dynamic and static spacing of pump station |
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| US3088414A (en) * | 1960-10-07 | 1963-05-07 | Dominion Eng Works Ltd | Self-adjusting contra rotating axial flow pumps and turbines |
| CN1319727A (en) * | 2001-03-16 | 2001-10-31 | 吴玉林 | Built-in type disrotatory axial pump |
| JP2007303432A (en) * | 2006-05-15 | 2007-11-22 | Denso Corp | Blowing device |
| GB2530161A (en) * | 2014-07-24 | 2016-03-16 | Andritz Hydro Gmbh | A water turbine |
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| CN108678959A (en) * | 2018-04-16 | 2018-10-19 | 江苏大学镇江流体工程装备技术研究院 | A kind of shaft-driven three-level of list pumps axial flow rotary |
| CN108730199A (en) * | 2018-04-16 | 2018-11-02 | 江苏大学镇江流体工程装备技术研究院 | A kind of single motor driving pumps axial flow rotary |
| CN108730109A (en) * | 2017-04-13 | 2018-11-02 | 许昌义 | The two-way axis of automatic conversion stretches tubular turbine |
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2019
- 2019-07-19 CN CN201910655282.1A patent/CN110486217B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3088414A (en) * | 1960-10-07 | 1963-05-07 | Dominion Eng Works Ltd | Self-adjusting contra rotating axial flow pumps and turbines |
| CN1319727A (en) * | 2001-03-16 | 2001-10-31 | 吴玉林 | Built-in type disrotatory axial pump |
| JP2007303432A (en) * | 2006-05-15 | 2007-11-22 | Denso Corp | Blowing device |
| GB2530161A (en) * | 2014-07-24 | 2016-03-16 | Andritz Hydro Gmbh | A water turbine |
| CN107299874A (en) * | 2016-12-14 | 2017-10-27 | 江苏国泉泵业制造有限公司 | A kind of axial flow pump hydraulic turbine with double-clutch mechanism |
| CN108730109A (en) * | 2017-04-13 | 2018-11-02 | 许昌义 | The two-way axis of automatic conversion stretches tubular turbine |
| CN108678959A (en) * | 2018-04-16 | 2018-10-19 | 江苏大学镇江流体工程装备技术研究院 | A kind of shaft-driven three-level of list pumps axial flow rotary |
| CN108730199A (en) * | 2018-04-16 | 2018-11-02 | 江苏大学镇江流体工程装备技术研究院 | A kind of single motor driving pumps axial flow rotary |
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| CN110486217A (en) | 2019-11-22 |
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