CN112392641B - Water power generation device - Google Patents
Water power generation device Download PDFInfo
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- CN112392641B CN112392641B CN202011386751.3A CN202011386751A CN112392641B CN 112392641 B CN112392641 B CN 112392641B CN 202011386751 A CN202011386751 A CN 202011386751A CN 112392641 B CN112392641 B CN 112392641B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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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
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4466—Floating structures carrying electric power plants for converting water energy into electric energy, e.g. from tidal flows, waves or currents
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model provides a power generation facility on water, airtight showy equipment platform is divided into two cabins about, by the cabin division board in middle part, and lower cabin holds fresh water and installs the electricity generation cabin, and the electricity generation cabin is separated the cabin for the U-shaped down, makes fresh water flow in both sides through the rivers passageway of bottom to promote the turbine rotation of bottom, the turbine drives the generator work in the electricity generation cabin through even axle mechanism again, and the electric energy that the generator produced then saves to the battery department in last cabin. The water power generation device has a simple structure, can reduce production and maintenance costs, can be applied to various water environments, has extremely small limitation on the use environment, has extremely long service life and good stability, and is favorable for ensuring the working stability.
Description
Technical Field
The present invention relates to a power generating apparatus, and more particularly, to a device which is installed on water and generates power using water energy.
Background
Water energy is a renewable clean energy source, and kinetic energy, potential energy or pressure energy of a water body and the like are used as energy resources. Water bodies in rivers and oceans can be used for power generation, particularly ocean, and the wave energy contained in the water bodies is huge. The offshore power generation equipment captures kinetic energy generated by disturbance of waves on a structural member and drives a generator to generate electricity through a hydraulic system. However, the existing offshore power generation equipment has poor economy and is difficult to popularize on a large scale, one reason is that the equipment cost is high, the other reason is that the set position is limited greatly, part of equipment can only be arranged on the shore, and a proper coastal position needs to be selected for manual transformation, so that a large amount of transformation cost is needed, and the coastal landscape is also influenced; and part of the devices are arranged on the coast, the structure is complex, the fastening cost is high, the requirements on corrosion prevention and leakage prevention of moving parts are high, and the maintenance is difficult.
Disclosure of Invention
The invention aims to provide a water power generation device which has a simple structure and is suitable for various water environments, so that the water power is more effectively and fully utilized to generate power, and the manufacturing and maintenance cost of equipment is reduced.
The water power generation device comprises a closed floatable equipment platform, wherein a cabin partition plate is arranged in the middle of the equipment platform and divides the inside of the equipment platform into an upper cabin and a lower cabin in a sealing manner; the bottom of the cabin partition plate is provided with a closed power generation cabin, two cabin walls of the power generation cabin along a certain linear direction extend to the inner wall of the equipment platform, a space is reserved between the two cabin walls in the other linear direction of the power generation cabin and the inner side wall of the equipment platform to form a water storage chamber, two water flow channels communicated with the water storage chambers on two sides are arranged between the bottom of the power generation cabin and the bottom of the equipment platform, liquid is filled in the lower cabin, the liquid level is positioned in the water storage chamber, a space is reserved between the liquid level and the cabin partition plate to form a ventilation area, and a vent pipe communicated with the ventilation areas on two sides is arranged; the upper cabin is internally provided with a storage battery, the power generation cabin is internally provided with a power generator, a turbine is arranged in the water flow channel and is connected with the power generator through a connecting shaft assembly, and the power generator is connected with the storage battery through an IGBT module.
According to the water power generation device, the equipment platform floats on water and is arranged in a sealed manner, so that water seepage can be effectively prevented; the cabin partition plate divides the space in the equipment platform into an upper part and a lower part, the upper cabin on the upper part is used for placing a storage battery, the lower cabin on the lower part is further divided into an inner part and an outer part by the power generation cabin, the power generation cabin is internally provided with a power generator, a U-shaped water storage space is formed outside the power generation cabin and fresh water is stored, the whole U-shaped water storage space is not filled with the fresh water, a certain area is reserved as a ventilation area, and the fresh water can flow between the water storage chambers on the two sides through a water flow channel on the bottom. When the power generation device on water is placed on water, if the power generation device on water is placed on the sea surface at a certain range of sea wave level, the fluctuation of ocean waves can push the equipment platform to generate periodic rolling motion, fresh water in the lower cabin can continuously flow through the water flow channel, so that the turbine is driven to rotate, the turbine drives the power generator to work and generate power through the connecting shaft assembly, and generated electric energy is converted into direct current through the IGBT module to be stored in the storage battery so as to be stored. The water power generation device has simple structure, is extremely easy to manufacture and maintain, and can effectively reduce the production and maintenance cost; the marine environment-friendly escape system can be applied to most of marine environments, has a high application range and high maneuverability, and can escape from excessively severe marine environments; in addition, the limit to the use environment is extremely small, the device can be conveniently placed in offshore or open sea, and the use environment does not need to be modified; the exposed equipment platform is of a closed structure and can be made of materials with high corrosion resistance, the equipment platform cannot be soaked even if the equipment platform overturns, and fresh water without corrosion is used as a water source for pushing the turbine to work inside the equipment platform, so that the turbine and the connecting shaft assembly are prevented from being damaged by corrosion, and the service life is greatly prolonged; the fresh water can be used as a power source for pushing the turbine, and the gravity center of the whole water power generation device can be moved downwards, so that the stability of the water power generation device is improved, and the water power generation device cannot overturn even if the water power generation device is transversely inclined to a large extent under the action of wind waves, so that the working stability is ensured.
Drawings
Fig. 1 is a schematic structural view of a marine power generation device.
Fig. 2 is a schematic diagram of an arrangement of two sets of generators and turbines.
Fig. 3 is a schematic structural diagram of another embodiment of the marine power generation device.
Fig. 4 is a schematic view of the operation state of the water power generation device.
Detailed Description
A water power generation device comprises a closed floatable equipment platform 1, wherein a cabin partition plate 2 is arranged in the middle of the equipment platform and hermetically divides the inside of the equipment platform into an upper cabin and a lower cabin; the bottom of the cabin partition plate is provided with a closed power generation cabin 3, two cabin walls of the power generation cabin along a certain linear direction extend to the inner wall of the equipment platform, a space is reserved between the two cabin walls in the other linear direction of the power generation cabin and the inner side wall of the equipment platform to form a water storage chamber 11, a water flow channel 12 communicated with the water storage chambers on two sides is arranged between the bottom of the power generation cabin and the bottom of the equipment platform, liquid is filled in the lower cabin, the liquid level is positioned in the water storage chamber, a space is reserved between the liquid level and the cabin partition plate to form a ventilation area 13, and a ventilation pipe 4 communicated with the ventilation areas on two sides is arranged; the upper cabin is internally provided with a storage battery 5, the power generation cabin is internally provided with a power generator 6, a turbine 7 is arranged in the water flow channel, the turbine is connected with the power generator through a connecting shaft mechanism, and the power generator is connected with the storage battery through an IGBT module.
The water power generation device is characterized in that the equipment platform 1, the cabin partition plate 2 and the power generation cabin 3 are of reinforced concrete structures, so that the service life of the equipment is prolonged, and the production cost is reduced. The connecting shaft mechanism comprises a gearbox 81 for increasing the rotating speed, the gearbox is respectively connected with the generator 6 and the turbine 7 through a connecting shaft assembly 82, and the gearbox and the connecting shaft assembly can increase the rotating speed of the generator through the meshing and transmitting action of gears with different diameters so as to meet the power generation requirement.
The equipment platform can be a square structure as shown in fig. 1, or can be a structure as shown in fig. 3, the width of the equipment platform 1 at the top of the lower cabin is larger than the bottom of the equipment platform, a ship-shaped structure is formed, and the ventilation zone above the liquid level is widened to increase the potential energy of the liquid during transverse inclination and improve the power generation power. The width of the lower part of the power generation cabin 3 is larger than that of the upper part, a convex structure is formed, and the liquid level in the lower cabin is higher than that of the upper part of the power generation cabin, so that the potential energy of liquid is further improved and the power generation power is further improved.
As shown in fig. 2, two water flow channels 12 are arranged between the bottom of the power generation cabin 3 and the bottom of the equipment platform 1, turbines 7 with opposite directions are respectively arranged in the two water flow channels, the two water flow channels are located at one ends of the turbines 7 facing each other, a one-way valve 9 capable of being opened and closed in a one-way mode is installed, and two generators 6 are installed in the power generation cabin 3 and are respectively connected with the two turbines through a connecting shaft mechanism. Through the arrangement of two sets of generators and turbines, power generation can be carried out in different heeling states; and the water flow channel and the one-way valve are arranged, so that the generator can be prevented from reversing, the liquid flow can be controlled, and the phenomenon that the stable operation of the water power generation device is influenced due to overlarge transverse tilting moment generated by liquid is avoided.
The water power generation device is characterized in that the top of the equipment platform 1 is provided with a sail 10, the water power generation device can move along a straight line direction by using wind power as propulsion power under the condition of downwind, and can sail upwind by using the pressure difference of wind acting on two sides of the sail to generate lift force under the condition of upwind, so that the water power generation device moves along a zigzag path. And a sail control mechanism (not shown) for controlling the direction of the sail is also arranged on the equipment platform so as to control the sail to be matched with the wind direction to drive the equipment platform to move. Meanwhile, a navigation mechanism (not shown) is installed on the equipment platform 1, and the navigation mechanism is matched with the sail control mechanism to work, so that the advancing direction of the water power generation device is controlled, the water power generation device can be conveniently released at a port or a sea platform, the water power generation device can automatically move to a suitable sea area through the navigation mechanism to capture wave energy, and after the storage battery is charged, the sail control mechanism and the navigation mechanism control the water power generation device to return to the port for recycling. And the top of the equipment platform 1 and the cabin partition plate 2 are positioned above the power generation cabin 3, and watertight cabin covers 20 communicated with the inner side and the outer side are respectively installed on the equipment platform and the cabin partition plate, so that the watertight cabin covers are opened in a port to replace batteries or maintain equipment such as a power generator and a gearbox. In addition, the bottom of the equipment platform 1 is provided with a dead wood 30, so that the longitudinal shaking is reduced by the dead wood, and the inclination angle caused by the lifting action of the sail during upwind sailing can be reduced.
In the above-water power generation device, the cooling coil 40 is installed at the outer side of the bulkhead of the water storage chamber 11 of the equipment platform 1, and the end part of the cooling coil extends to the cabin where the power generation cabin 3 and the storage battery 5 are located. The generator and the storage battery can generate a large amount of heat in the working process, and the equipment platform with the reinforced concrete structure has high heat insulation performance, so that the working stability of the power generation device can be influenced if the heat cannot be effectively released. Therefore, the cooling coil is arranged outside the equipment platform, on one hand, seawater can be used for cooling, on the other hand, the equipment platform has higher working stability and lower manufacturing cost, and is easier to replace.
As shown in fig. 1 and 2, the aquatic power plant floats on the water surface P and generates a periodic rolling motion under the action of the ocean waves. When the water power generation device returns to a balanced state from an inclined state, the liquid pressure in the water storage chambers on the two sides is unequal, the corresponding one-way valve is automatically opened, the corresponding turbine rotates and drives the generator to generate electricity through the connecting shaft mechanism, and the generated electric energy is converted into direct current through the IGBT module and stored in the storage battery so as to be stored.
Taking the specification of the water-borne power generation device shown in fig. 4 as an example, when the water-borne power generation device tilts by 7.5 degrees, the centroid height difference of the left and right liquid surfaces becomes: Δ h =0.226m × 2=0.452m,
the cross-sectional area of the liquid generating the liquid level change is: s = (0.658+0.132) = 4/2=1.58m2,
the volume of liquid that produces the level change is: v =1.58 × 6=9.48m3,
the potential energy generated by the liquid generating the liquid level change is as follows: w = mgh = ρ Vg Δ h =4.28x10^4j (ρ =1000kg/m 3),
assuming that the rolling period of the marine power generation device is 4s and the time from the roll to the equilibrium state is about t =1s, the theoretical power of the marine power generation device is: p' = W/t =42.8kW,
the conversion efficiency of potential energy and electric energy is about 0.25 (potential energy effective utilization rate is 0.7, turbine conversion efficiency is 0.5, electric system conversion efficiency is 0.7, and total efficiency is 0.7 × 0.5 × 0.7= 0.25), then the generated power is: p =10.7 kW,
if the annual use days of the water power generation device is 350 days, the annual power generation amount is 89880 kWh, the electricity fee is calculated according to 1 yuan/kWh, and the annual benefit is 8.99 ten thousand yuan. Therefore, the use of the water power generation device can generate great economic benefits.
Claims (9)
1. An aquatic power generation device, characterized in that: the floating type floating device comprises a closed and floatable device platform (1), wherein a cabin partition plate (2) is arranged in the middle of the device platform and divides the interior of the device platform into an upper cabin and a lower cabin in a sealing manner; the bottom of the cabin partition plate is provided with a closed power generation cabin (3), two cabin walls of the power generation cabin along a certain linear direction extend to the inner wall of the equipment platform, a space is reserved between the two cabin walls of the power generation cabin in the other linear direction and the inner side wall of the equipment platform to form a water storage chamber (11), a water flow channel (12) communicated with the water storage chambers on the two sides is arranged between the bottom of the power generation cabin and the bottom of the equipment platform, liquid is filled in the lower cabin, the liquid level is positioned in the water storage chamber, a space is reserved between the liquid level and the cabin partition plate to form a ventilation area (13), and a ventilation pipe (4) communicated with the ventilation areas on the two sides is arranged; a storage battery (5) is installed in the upper cabin, a generator (6) is installed in the power generation cabin, a turbine (7) is arranged in the water flow channel, the turbine is connected with the generator through a connecting shaft mechanism, and the generator is connected with the storage battery through an IGBT module; in addition, the width of the lower part of the power generation cabin (3) along the direction parallel to the water flow channel is larger than that of the upper part.
2. The marine power generation device of claim 1, wherein: the width of the equipment platform (1) at the top of the lower cabin along the water flow channel (12) is larger than the bottom of the equipment platform.
3. The marine power generation device of claim 1, wherein: two water flow channels (12) are arranged between the bottom of the power generation cabin (3) and the bottom of the equipment platform (1), turbines (7) with opposite directions are arranged in the two water flow channels respectively, and two power generators (6) are installed in the power generation cabin (3) and are connected with the two turbines through connecting shaft mechanisms respectively.
4. A marine power generation device according to claim 3, wherein: the two water flow channels are positioned at one end of the turbine (7) facing to each other, and a one-way valve (9) capable of being opened and closed in a one-way mode is installed.
5. The marine power generation device of claim 1, wherein: the top of the equipment platform (1) is provided with a sail (10), and the equipment platform is provided with a sail control mechanism for controlling the direction of the sail.
6. The marine power generation device of claim 1 or 5, wherein: the equipment platform (1) is provided with a navigation mechanism.
7. The marine power generation device of claim 1 or 5, wherein: the bottom of the equipment table (1) is provided with a dead wood (30).
8. The marine power generation device of claim 1, wherein: the top of the equipment platform (1) and the cabin partition plate (2) are positioned above the power generation cabin (3), and watertight cabin covers (20) communicated with the inner side and the outer side are respectively installed on the equipment platform and the cabin partition plate.
9. The marine power generation device of claim 1, wherein: the equipment platform (1) is provided with a cooling coil (40) at the outer side of the bulkhead of the water storage chamber (11), and the end part of the cooling coil extends to the cabin where the power generation cabin (3) and the storage battery (5) are located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011386751.3A CN112392641B (en) | 2020-12-02 | 2020-12-02 | Water power generation device |
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| CN202011386751.3A CN112392641B (en) | 2020-12-02 | 2020-12-02 | Water power generation device |
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| CN112392641A CN112392641A (en) | 2021-02-23 |
| CN112392641B true CN112392641B (en) | 2022-12-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB492448A (en) * | 1936-03-31 | 1938-09-21 | Siemens App Und Maschinen Gmbh | Improvements in or relating to an installation for effecting the stability of ships |
| RU2046994C1 (en) * | 1989-12-25 | 1995-10-27 | Аркадий Ксенофонтович Рязанов | Method of transformation of oscillation motion energy of floating craft |
| CN109915310A (en) * | 2019-01-16 | 2019-06-21 | 中国科学院广州能源研究所 | Single valve formula U-tube oscillating water column is to the double variable-pressure turbine apparatus for generating electricity by wave force of dress |
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| KR101133674B1 (en) * | 2009-08-07 | 2012-04-12 | 한국전력공사 | Variable liquid-column oscillator using wave energy |
| CN105275724B (en) * | 2014-07-01 | 2021-02-26 | 王力丰 | Ship wave power generation stabilizing device and wave power generation system |
| US10190567B2 (en) * | 2014-10-28 | 2019-01-29 | Changchun University Of Science And Technology | Heavy hammer type wave power generation method and device |
| CN205400980U (en) * | 2016-03-11 | 2016-07-27 | 鲁悦 | Anti -rolling tank sends out electrically propelled unit |
| CN107100783B (en) * | 2017-04-14 | 2024-02-09 | 浙江大学 | Electromechanical liquid integrated full-sealed wave energy power generation device |
| CN108411846B (en) * | 2018-03-05 | 2019-06-14 | 浙江大学 | A kind of floating breakwater and method for taking into account hydraulic turbine formula wave energy conversion function |
| CN108468459B (en) * | 2018-04-23 | 2023-12-19 | 天津大学 | Tuning liquid column type damping device with power generation function |
| CN108716449B (en) * | 2018-04-28 | 2020-04-24 | 中国科学院广州能源研究所 | U-shaped self-propelled wave power generation device |
| CN109162861A (en) * | 2018-10-17 | 2019-01-08 | 山东大学 | A kind of floatation type vertical axis wave-energy power generation equipment and its application |
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2020
- 2020-12-02 CN CN202011386751.3A patent/CN112392641B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB492448A (en) * | 1936-03-31 | 1938-09-21 | Siemens App Und Maschinen Gmbh | Improvements in or relating to an installation for effecting the stability of ships |
| RU2046994C1 (en) * | 1989-12-25 | 1995-10-27 | Аркадий Ксенофонтович Рязанов | Method of transformation of oscillation motion energy of floating craft |
| CN109915310A (en) * | 2019-01-16 | 2019-06-21 | 中国科学院广州能源研究所 | Single valve formula U-tube oscillating water column is to the double variable-pressure turbine apparatus for generating electricity by wave force of dress |
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Address after: 510250 building 11, No.5 Luhu Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Ship and Ocean Engineering Design and Research Institute (the 65th Research Institute of China State Shipbuilding Corporation Corp.) Address before: 510250 building 11, No.5 Luhu Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU SHIPBUILDING AND OCEAN ENGINEERING DESIGN Research Institute (THE 605TH RESEARCH INSTITUTE OF CHINA STATE SHIPBUILDING Corp.,Ltd.) |