CN109026503B - Hydroelectric power generation equipment - Google Patents
Hydroelectric power generation equipment Download PDFInfo
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- CN109026503B CN109026503B CN201811042841.3A CN201811042841A CN109026503B CN 109026503 B CN109026503 B CN 109026503B CN 201811042841 A CN201811042841 A CN 201811042841A CN 109026503 B CN109026503 B CN 109026503B
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- power generation
- threshold value
- water turbine
- wedge plate
- buoy
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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
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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
- F03B3/183—Adjustable vanes, e.g. wicket gates
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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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a hydroelectric power generation device which comprises a plurality of floating barrels, wherein a water turbine and a wedge plate are arranged between every two adjacent floating barrels, a rotating shaft of the water turbine is in transmission connection with a power generation assembly, the wedge plate is arranged at the upstream of the water turbine, and the distance between the wedge plates between every two adjacent floating barrels is gradually reduced along the flow direction of water flow.
Description
Technical Field
The invention relates to power generation equipment, in particular to hydroelectric power generation equipment.
Background
The new energy is attracting people's attention as clean energy. The hydroelectric generation system can utilize the water flow with potential energy at high position, such as rivers, lakes, etc., to low position, and convert the potential energy contained therein into the kinetic energy of the water turbine, and then the water turbine is used as motive power to drive the generator to generate electric energy.
In the existing hydroelectric generation, in order to avoid the influence of the river flow on the power generation efficiency, the water level needs to be improved in a river blocking and damming mode, the potential energy of the water level difference is utilized to generate power, and the water flow falls down from the high potential energy position to drive the water turbine to rotate. Although the existing river-blocking damming mode has high requirements on the environment, the constructed hydroelectric power generation equipment has great influence on the surrounding ecological environment and is not beneficial to the protection of the natural environment and biological resources. However, because the kinetic energy of the water flow in the river channel changes at any time, when the flow of the water flow in the river channel is small, the water flow cannot drive the water turbine to rotate effectively, so that the conventional water flow power generation cannot directly utilize the kinetic energy of the water flow in the river channel, and the development of hydroelectric power generation is limited.
Disclosure of Invention
In view of this, the application provides a hydroelectric power generation equipment, can directly utilize the kinetic energy of rivers in the river course, promote the velocity of water flow through the wedge plate, even still can drive the hydraulic turbine and rotate when river course rivers flow is less, effectively utilize river course rivers to generate electricity, need not to block a river and build a dam, have the construction simple, to the environmental impact little, to the advantage that the environmental requirement is low.
In order to solve the technical problems, the technical scheme provided by the invention is that the device comprises a plurality of buoys, a water turbine and a wedge plate are arranged between every two adjacent buoys, a rotating shaft of the water turbine is in transmission connection with a power generation assembly, the wedge plate is arranged at the upstream of the water turbine, and the distance between the wedge plates between every two adjacent buoys is gradually reduced along the flow direction of water flow.
Preferably, the flotation pontoon is hollow structure's cuboid metal cylinder, bottom surface in the flotation pontoon is provided with the metal base, be fixed with on the metal base the electricity generation subassembly.
Preferably, the power generation module includes: the motor comprises a stator fixed in the generator shell and a motor shaft penetrating through the stator, wherein a rotor is sleeved on the motor shaft;
the motor shaft is connected with a rotating shaft of the water turbine through a speed regulator.
Preferably, the motor shaft is sleeved with a magnetic bearing, and the peripheral surface of the magnetic bearing is hermetically fixed on the side wall of the float bowl.
Preferably, the water turbine comprises a rotating shaft and blades uniformly distributed along the circumferential direction of the rotating shaft, and a grid is arranged between every two adjacent blades.
Preferably, spokes are further arranged between the connection part of the grid bars and the blades and the rotating shaft of the water turbine.
Preferably, one end of the wedge plate is hinged to the buoy, the other end of the wedge plate is hinged to an electric adjusting mechanism, and the electric adjusting mechanism is used for receiving an electric signal and driving the wedge plate to swing and is used for adjusting the distance between the wedge plates.
Preferably, the buoy located at the outermost side of the two axial ends of the water turbine is provided with a fixing rope for fixing, one end of the fixing rope is connected with the buoy, the other end of the fixing rope is fixed on the two sides of the river channel, the fixing rope is provided with a tension detection device, a threshold value is preset on the tension detection device, and the tension detection device is used for comparing the tension detected in real time with the threshold value and sending the electric signal to the electric adjusting mechanism according to the comparison result.
Preferably, the threshold value comprises a first threshold value and a second threshold value; the electrical signals comprise a first electrical signal and a second electrical signal;
when the tension is greater than a first threshold value, the electric adjusting mechanism receives a first electric signal and is used for increasing the distance between two opposite wedge plates;
when the tension is smaller than a second threshold value, the electric adjusting mechanism receives a second electric signal and is used for enabling the distance between the two opposite wedge plates to be reduced.
Compared with the prior art, the detailed description of the application is as follows:
the application discloses hydroelectric power generation equipment, make the hydraulic turbine float on the river course through the flotation pontoon, the flowing water of river flows to the hydraulic turbine from between the wedge plate, it rotates to drive the hydraulic turbine, when rivers flow through between the wedge plate, because interval between the wedge plate reduces gradually, lead to rivers flow must, the cross-section diminishes, the velocity of flow increases, the impact force of the rivers that the hydraulic turbine received increases, the hydraulic turbine rotational speed has been improved, the effectual kinetic energy with the rivers that flow on the river course turns into the mechanical energy of the hydraulic turbine, thereby realize power generation equipment's electricity generation. The device need not to build dykes and dams, can directly utilize in open river course flow domain, and is little to the environmental impact, requires lowly, easily installs.
When the developed river channel is narrow, the number of the buoys and the water turbines can be reduced, and when the developed river channel is wide, the number of the buoys and the water turbines can be increased, so that the river channel developing device is suitable for different river channels and has the advantage of wide adaptability.
The flotation pontoon is the flotation pontoon of metal material, the electricity generation subassembly passes through the metal base and installs in the flotation pontoon, the heat energy that the electricity generation subassembly produced in the electricity generation process passes through the metal base and transmits to the flotation pontoon on, the heat of flotation pontoon can effectively be taken away when the flotation pontoon is flowed through to the rivers, utilize river course rivers to dispel the heat the cooling to the electricity generation subassembly, need not additionally to set up the cold source and cool down, the advantage that has clean environmental protection, because river course self rivers are the continuous flow of source, can effectively guarantee the heat dissipation, the advantage that the cooling effect is good has.
The motor shaft is fixed through the magnetic bearing, and the magnetic bearing has the advantage that the damping is little, non-maintaining, need not lubricating grease, consequently pollutes for a short time to the river course.
The one end of wedge plate is provided with electric adjusting mechanism, and electric adjusting mechanism can change the interval between the wedge plate according to the signal of telecommunication, and when the river course velocity of flow is great, the wedge plate interval increases, effectively utilizes the kinetic energy of rivers, and when the river course velocity of flow is less, the wedge plate interval reduces, effectively improves the kinetic energy of rivers, has the advantage that adaptability is wide.
The tension detection device that sets up on the fixed rope is used for detecting the tension that fixed rope received, because rivers impact flotation pontoon and hydraulic turbine chance form a set of mutual effort, if the impact force that flotation pontoon and hydraulic turbine received is too big, has surpassed the value of fixed rope safety atress, then can lead to fixed rope fracture. The tension detection device can compare the tension detected in real time with a preset threshold value, and sends the electric signal to the electric adjusting mechanism according to the comparison result, so that the wedge plates can be adjusted flexibly and the water energy can be fully utilized, and on the other hand, when the tension is greater than the first threshold value, the electric adjusting mechanism increases the distance between the two opposite wedge plates, can also reduce the tension received on the fixed rope, and ensures the safety of the device.
Drawings
FIG. 1 is a schematic view of the horizontal structure of the present invention;
FIG. 2 is a schematic view of the present invention in a vertical configuration;
fig. 3 is a side view schematic diagram of the water turbine.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in the figure, a hydroelectric power generation equipment, include a plurality of flotation pontoons (1) and set up in adjacent two hydraulic turbine (2) between flotation pontoon (1), hydraulic turbine (2) transmission is connected with power generation subassembly (6), flotation pontoon (1) is fixed on the river course through fixed rope (4) to provide buoyancy and make hydroelectric power generation equipment float on the surface of water in river course all the time, the lower limb of hydraulic turbine (2) is located river course surface of water below, when rivers flow through hydraulic turbine (2), water wheels drive hydraulic turbine (2) rotatory, power generation subassembly (6) turn into the electric energy with kinetic energy and realize the electricity generation.
The utility model discloses a power generation assembly, including flotation pontoon (1), lower surface is provided with metal base (11) in flotation pontoon (1), be fixed with on metal base (11) electricity generation subassembly (6). The power generation module (6) includes:
a generator housing (61) provided with a stator (62) inside, the stator (62) including an annular core and a winding wound around the annular core;
the motor comprises a motor shaft (64), wherein a rotor (63) is sleeved on the motor shaft (64), and the rotor (63) is a magnetic pole rotating synchronously with the motor shaft (64) and an excitation winding wound on the magnetic pole; when the rotor (63) rotates, magnetic induction lines of the cutting magnetic poles of the stator (62) form an electric field, and kinetic energy of the motor shaft (64) is converted into electric energy.
The water turbine (2) is connected with the power generation assembly (6) through a speed regulator (5), and the speed regulator (5) is used for keeping a motor shaft (64) of the power generation assembly (6) at a relatively stable rotating speed.
The water turbine (2) comprises:
the rotating shaft (24), the rotating shaft (24) is connected with the motor shaft (64) through the speed regulator (5);
blades (21) are uniformly distributed on the rotating shaft (24) along the circumferential direction, grid bars (22) are connected between every two adjacent blades (21), the grid bars (22) are used for fixing the distance between every two adjacent blades (21) and improving the structural strength of the blades (21), and one or more layers of grid bars (22) can be arranged along the radial direction. Still be provided with spoke (23) along the radial of pivot (24) on the global of pivot (24), the other end of spoke (23) is fixed in bars (22) or on blade (21), spoke (23) are used for improving blade (21) along the structural strength of pivot (24) radial direction.
Magnetic bearing (7) are sleeved at two ends of generator rotating shaft (24), the peripheral surface of magnetic bearing (7) is fixed on floating drum (1), and magnetic bearing (7) does not need to be maintained regularly, so that the generator rotating shaft has the advantages of stable operation, no maintenance and small resistance.
The wedge plate (3) is arranged between the two adjacent floating barrels (1), and the wedge plate (3) is located in the upstream direction of the water turbine (2). Along rivers flow direction, wedge plate (3) interval between two adjacent flotation pontoons (1) reduces gradually, and rivers flow along two wedge plate (3), because the separation effect of two wedge plate (3), the rivers cross-section diminishes, and the velocity of water flow increases, has improved the rivers ability of flowing, and the kinetic energy of the rivers of the most possible utilization makes rivers accelerate the back and drives hydraulic turbine (2) and rotate.
The one end of wedge plate (3) articulates on flotation pontoon (1), the other end of wedge plate (3) is provided with electric adjusting mechanism (31), and the one end of electric adjusting mechanism (31) articulates on wedge plate (3), the other end setting of electric adjusting mechanism (31) is in on flotation pontoon (1), electric adjusting mechanism (31) can receive the signal of telecommunication, and drive wedge plate (3) change the distance of wedge plate (3) between two adjacent flotation pontoons (1) along the pin joint swing, and when the velocity of flow is great, wedge plate (3) distance increases, reduces the acceleration rate of flow, and when the velocity of flow is less, wedge plate (3) distance reduces, improves the acceleration rate of flow.
A group of fixed ropes (4) are respectively arranged on the buoys (1) positioned at the outermost sides of the two axial ends of the water turbine (2), the other ends of the fixed ropes (4) are fixedly arranged at the two sides of a river channel, a tension detection device (41) is arranged on the fixed ropes (4), the tension detection device (41) is used for detecting the tension on the fixed ropes (4), a first threshold value and a second threshold value are preset on the tension detection device (41), when the tension detected by the tension detection device (41) in real time exceeds the first threshold value, a first electric signal is sent to the electric adjusting mechanism (31), the distance between the wedge plates (3) is increased, the impact of water flow acceleration on the wedge plates (3) is reduced, the stress of the fixed ropes (4) on the buoys (1) is reduced, the safety of equipment is improved, and when the tension detected by the tension detection device (41) in real time is smaller than the second threshold value, a second electric signal is sent to the electric, the distance between the wedge plates (3) is reduced, the water flow acceleration is increased, and the power generation efficiency of the device is ensured.
When the tension detected by the tension detection device (41) exceeds a first threshold value, the tension detection device (41) can also send an alarm signal, for example, staff can be prompted to maintain in the coming season, and the fixed rope (4) is prevented from being broken or equipment is prevented from being damaged by impact.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (6)
1. The hydroelectric power generation equipment is characterized by comprising a plurality of buoys (1), wherein a water turbine (2) and a wedge plate (3) are arranged between every two adjacent buoys (1), a rotating shaft (24) of the water turbine (2) is in transmission connection with a power generation assembly (6), the wedge plate (3) is arranged at the upstream of the water turbine (2), and the distance between the wedge plates (3) between every two adjacent buoys (1) is gradually reduced along the flow direction of water flow;
one end of the wedge plate (3) is hinged to the buoy (1), the other end of the wedge plate (3) is hinged to an electric adjusting mechanism (31), and the electric adjusting mechanism (31) is used for receiving an electric signal, driving the wedge plate (3) to swing and adjusting the distance between the wedge plates (3);
the device comprises a water turbine (2), wherein a buoy (1) positioned on the outermost side of the two axial ends of the water turbine (2) is provided with a fixed rope (4) for fixing, one end of the fixed rope (4) is connected with the buoy (1), the other end of the fixed rope (4) is fixed on the two sides of a river channel, a tension detection device (41) is arranged on the fixed rope (4), a threshold value is preset on the tension detection device (41), the tension detection device (41) is used for comparing the tension detected in real time with the threshold value, and sending an electric signal to an electric adjusting mechanism (31) according to a comparison result;
the threshold value comprises a first threshold value and a second threshold value; the electrical signals comprise a first electrical signal and a second electrical signal;
when the tension is larger than a first threshold value, the electric adjusting mechanism (31) receives a first electric signal and is used for increasing the distance between two opposite wedge plates (3);
when the tension is smaller than a second threshold value, the electric adjusting mechanism (31) receives a second electric signal and is used for reducing the distance between the two opposite wedge plates (3).
2. A hydroelectric power generation apparatus as claimed in claim 1, wherein the buoy (1) is a cuboid having a hollow structure, a metal base (11) is disposed on the bottom surface of the buoy (1), and the power generation assembly (6) is fixed on the metal base (11).
3. A hydropower device according to claim 2, characterized in that the power generation assembly (6) comprises: the motor comprises a stator (62) fixed in a generator housing (61) and a motor shaft (64) penetrating through the stator (62), wherein a rotor (63) is sleeved on the motor shaft (64);
the motor shaft (64) is connected with a rotating shaft (24) of the water turbine (2) through a speed regulator (5).
4. A hydroelectric power generation device according to claim 3, wherein the motor shaft (64) is sleeved with a magnetic bearing (7), and the outer peripheral surface of the magnetic bearing (7) is hermetically fixed on the side wall of the buoy (1).
5. A hydropower device according to claim 1, characterized in that the turbine (2) comprises a rotating shaft (24) and blades (21) evenly distributed along the circumference of the rotating shaft (24), and a grid (22) is arranged between two adjacent blades (21).
6. A hydropower device according to claim 5, characterized in that spokes (23) are further provided between the connection of the grid (22) and the blade (21) and the rotating shaft (24) of the water turbine (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042841.3A CN109026503B (en) | 2018-09-07 | 2018-09-07 | Hydroelectric power generation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042841.3A CN109026503B (en) | 2018-09-07 | 2018-09-07 | Hydroelectric power generation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109026503A CN109026503A (en) | 2018-12-18 |
| CN109026503B true CN109026503B (en) | 2020-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811042841.3A Active CN109026503B (en) | 2018-09-07 | 2018-09-07 | Hydroelectric power generation equipment |
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| Country | Link |
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| CN (1) | CN109026503B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431727A (en) * | 2020-12-31 | 2021-09-24 | 潍坊新力蒙水产技术有限公司 | Horizontal sinking split type axial flow power generation device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118827U (en) * | 1992-03-12 | 1992-10-14 | 杨森威 | Floating type hydroelectric generator |
| CN2310169Y (en) * | 1997-07-23 | 1999-03-10 | 夏跃臣 | Float flow type water turbine |
| CN2861530Y (en) * | 2005-12-13 | 2007-01-24 | 鲁东升 | Electricity generating system floating on water surface |
| CN200955470Y (en) * | 2006-09-25 | 2007-10-03 | 陈元德 | Natural water-energy water-pumping apparatus |
| CN101603494A (en) * | 2008-06-14 | 2009-12-16 | 张志国 | Single-wheel gigantic concave-blade hydraulic turbine hydro-power station |
| US8772957B2 (en) * | 2011-11-23 | 2014-07-08 | John Herman Willingham | Power generating floating vessel |
| KR101284106B1 (en) * | 2011-11-29 | 2013-07-10 | 한국해양과학기술원 | Simple reciprocating pivot-rotational vortex induced vibration energy extraction device and vortex induced vibration energy extraction method using the device |
| CN104405558B (en) * | 2014-12-01 | 2017-07-07 | 国家电网公司 | A kind of bulb type generator set current speeder |
| CN105134470A (en) * | 2015-07-25 | 2015-12-09 | 周虎 | Wave power generation device |
| CN105314067A (en) * | 2015-11-02 | 2016-02-10 | 上海中船船舶设计技术国家工程研究中心有限公司 | Device and method for mooring ship |
| CN106917716A (en) * | 2017-03-27 | 2017-07-04 | 张语 | A kind of external automatic control electricity generation system of undercurrent type |
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2018
- 2018-09-07 CN CN201811042841.3A patent/CN109026503B/en active Active
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