WO2012130037A1 - 一种水流发电装置 - Google Patents

一种水流发电装置 Download PDF

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Publication number
WO2012130037A1
WO2012130037A1 PCT/CN2012/072247 CN2012072247W WO2012130037A1 WO 2012130037 A1 WO2012130037 A1 WO 2012130037A1 CN 2012072247 W CN2012072247 W CN 2012072247W WO 2012130037 A1 WO2012130037 A1 WO 2012130037A1
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WO
WIPO (PCT)
Prior art keywords
water
bracket
water flow
flow power
water wheel
Prior art date
Application number
PCT/CN2012/072247
Other languages
English (en)
French (fr)
Inventor
张群
Original Assignee
Zhang Qun
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201110092876XA external-priority patent/CN102182609B/zh
Priority claimed from CN2012200821758U external-priority patent/CN202468150U/zh
Priority claimed from CN2012200823452U external-priority patent/CN202468144U/zh
Application filed by Zhang Qun filed Critical Zhang Qun
Priority to BR112013024920-0A priority Critical patent/BR112013024920B1/pt
Priority to US14/008,871 priority patent/US9611832B2/en
Publication of WO2012130037A1 publication Critical patent/WO2012130037A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12Adaptations 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
    • F03B13/26Adaptations 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
    • F03B13/264Adaptations 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00Other machines or engines
    • F03B17/06Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/062Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
    • F03B17/063Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having no movement relative to the rotor during its rotation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/10Stators
    • F05B2240/13Stators to collect or cause flow towards or away from turbines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/10Stators
    • F05B2240/13Stators to collect or cause flow towards or away from turbines
    • F05B2240/133Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/90Mounting on supporting structures or systems
    • F05B2240/93Mounting on supporting structures or systems on a structure floating on a liquid surface
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/30Energy from the sea, e.g. using wave energy or salinity gradient
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to a power generating device, in particular to a water flow power generating device.
  • Green energy is a cause of common concern and development in all countries of the world.
  • Hydropower is one of the most indispensable, inexhaustible, renewable and pollution-free green energy sources.
  • the world is rich in hydropower resources, and the use of hydropower to generate electricity has become an important direction for energy development strategies in countries around the world.
  • the traditional hydropower generation methods are: dam type hydropower station, diversion type hydropower station and dam-drainage hybrid hydropower station. These methods require dam construction, water storage, large investment, slow effect, and even large-scale immigration. This is the shortcoming of the prior art.
  • the technical problem to be solved by the present invention is to provide a river water, ocean current, tidal, advection water, vertical water flow that does not require dam construction, water storage, low investment, quick effect, large and small flow, in view of the deficiencies of the prior art.
  • a water flow power generation device that can be applied, which can effectively utilize water energy for power generation, and has high power generation efficiency.
  • the water flow power generation device includes a bracket, a water wheel and a transmission and a generator driven by a water wheel, and the transmission speed is used to change and adjust the speed of the water wheel to the generator to meet the generator.
  • the work of generating electricity is needed.
  • the bracket has at least one, and the bracket comprises an upper bracket and a lower bracket, the transmission and the generator are located above the upper bracket, and at least two reverse rotating water wheels are fixed between the upper bracket and the lower bracket, and the adjacent water wheel is
  • the blades are staggered with each other, and the same end of each water wheel is fixedly mounted with a synchronizing gear that can mesh with each other, and a rectifying body A with a sharp angle is fixedly connected between the upper bracket and the lower bracket at the water inlet end of the water wheel.
  • the energy conversion surface is a concave curved surface, so that the blade can intercept more water, and the energy conversion surface rotating in the water direction generates a torque greater than the reverse water direction (energy conversion surface).
  • the resistance generated on the back side causes a pressure difference between the water supply direction on both sides of the water wheel and the blade end in the reverse water direction, thereby ensuring normal reverse rotation of the two water wheels.
  • the streamlined rectifying body B is fixedly connected between the upper bracket and the lower bracket at the water outlet end of the water wheel, and the rectifying body B can effectively support the upper bracket and the lower bracket; and can effectively prevent the water flow from forming at the water outlet end of the water wheel.
  • the vortex makes the entire power generating device unstable, and prevents foreign matter such as fish from accumulating in the vortex region and is screwed into the water wheel by the blade, thereby affecting the working efficiency of the water wheel, thereby causing a decrease in power generation efficiency of the entire device.
  • a sharp-angled rectifying body A is also fixedly connected between the upper bracket and the lower bracket at the water outlet end of the water wheel.
  • the rectifying body A at the inlet end and the outlet end can make full use of the bidirectional water flow generated by the tide to generate electricity.
  • the blades of the water wheel When used for tidal power generation, the blades of the water wheel are straight-shaped or the surfaces of the blades of the water wheel are concave curved surfaces in order to be suitable for the two-way flow of tides.
  • the upper and lower portions of the bracket are respectively provided with buoyancy chambers, and the transmission and the generator are located.
  • the buoyancy chamber is provided with buoyancy for the power generating device to ensure the stability of the entire power generating device.
  • the buoyancy chamber is a streamlined structure.
  • the rudder plate is provided at the tail of the bracket at the water outlet end.
  • the both sides of the pointed-shaped rectifying body A symmetrical along its axis are straight or concave arcs.
  • the frontal water flow at the axis end of the whole fluid A sharp-point end changes direction under the action of the rectifying body A of the structure, so that the redirected water flow and the front side water flow on both sides of the rectifying body A obliquely impact the energy conversion surface of the water wheel blade in each direction.
  • the bottom edge of the pointed-shaped rectifying body A is a concave arc or is composed of two segments symmetrical along its axis and concave, wherein the two concave arcs respectively correspond to the two water wheels.
  • the rectifying body A of this shape leaves a rotating space for the rotation of the water wheel, so that the bottom end of the rectifying body A increases the resistance of the water wheel rotation, and the power generation efficiency of the entire power generating device is lowered.
  • the transmission and the generator can be connected to the output of the water wheel shaft of one of the above water wheels, so that the torque forces of the two water wheels can be transmitted to the transmission through two mutually engaged synchronizing gears, and then through the transmission. It is transmitted to the generator for power generation, and its power generation efficiency is high. It is also possible to connect the transmission and the generator to the output shafts of the water wheel shafts of the two water wheels, so that the torque forces of the two water wheels are respectively transmitted to the corresponding through the water wheel shaft. The transmission is then transmitted to the corresponding generator through the transmission for power generation, and the utilization of water energy and the efficiency of power generation are both high.
  • two or more brackets are arranged in the vertical direction, and the generator is fixed above the upper bracket in the uppermost bracket, so that the entire power generating device can extend in the vertical direction, thereby enabling more efficient use of water energy.
  • the torque and power generation efficiency of the water wheel are increased.
  • two or more brackets are arranged in a horizontal direction, and the generator is fixed above the upper brackets in each bracket, so that the entire power generating device can extend in a horizontal direction as needed, thereby forming a power generation array in a horizontal direction. Effectively improve the utilization of water energy and power generation efficiency.
  • the bottom edge of the streamlined rectifier B is a concave arc or is composed of two segments symmetrical along its axis and concave, and the two arcs respectively correspond to the two water wheels.
  • the rectifying body B of such a shape leaves a sufficient rotating space for the rotation of the water wheel to prevent the bottom end of the rectifying body B from increasing the resistance of the water wheel rotation, resulting in a decrease in the power generation efficiency of the entire power generating device.
  • the upper bracket, the rectifying body A and the lower bracket are provided with concentric positioning holes.
  • the positioning piles sequentially pass through the positioning holes on the upper bracket, the rectifying body A and the lower bracket, thereby connecting the entire power generating device in series
  • the bottom end of the positioning pile is driven into the river bed to fix the entire power generating device.
  • concentric positioning holes are arranged on the upper bracket, the rectifying body B and the lower bracket, and the positioning piles sequentially pass through the positioning holes on the upper bracket, the rectifying body B and the lower bracket, thereby The entire power generating device is connected in series, and the bottom end of the positioning pile is driven into the river bed to fix the entire power generating device.
  • At least one bracket is disposed in the water flow power generating device, and the bracket includes an upper bracket and a lower bracket, and the water inlet of the water wheel is located between the upper bracket and the lower bracket.
  • the end is fixedly connected with a sharp-angled rectifying body A, and the rectifying body A, the upper bracket and the lower bracket form a mounting frame for fixing the water wheel, and the entire power generating device can be stably floated in the water or firmly secured by the traction fixing member.
  • the transmission and the generator are located above the upper bracket, and at least two reverse-rotating water wheels are fixed between the upper bracket and the lower bracket, and the blades of the adjacent water wheels are staggered with each other, and the same ends of the water wheels are fixedly mounted with each other.
  • the meshing synchronizing gear is connected to the synchronizing gear and the water wheel through the transmission and the water wheel shaft.
  • each water wheel can be reversed at the same time, and the blades of the adjacent two water wheels collide and interfere with each other, so that the water wheels can work independently at the same time, so that the water wheels work at the same time, and each The torque of the water wheel can also be transmitted to the generator for power generation, which can improve the utilization of water energy and improve the power generation efficiency.
  • the whole power generation device has a simple structure, low design and manufacturing cost, convenient installation, and can be widely applied to each.
  • the water flow (such as streams, rivers, ocean currents, tides, etc.) can be used for floating operations, or the bottom of the device can be fixed to the river (sea) bed, so that the power generating device can work on the water or can be installed underwater. It can be seen that the present invention has outstanding substantive features and significant advances as compared with the prior art, and the beneficial effects of the implementation thereof are also obvious.
  • FIG. 1 is a schematic front view showing the structure of a first embodiment of the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • Figure 3 is a schematic view showing the structure of the utility model extending in the vertical direction.
  • FIG. 4 is a schematic front view showing the structure of a second embodiment of the present invention.
  • Figure 5 is a cross-sectional view taken along line B-B of Figure 4.
  • Fig. 6 is a schematic structural view of a water wheel in Embodiment 2 of the present invention.
  • Fig. 7 is a schematic view showing another structure of the water wheel in the second embodiment of the present invention.
  • Figure 8 is a schematic view showing the structure of a third embodiment of the present invention.
  • Figure 9 is a schematic view showing the structure of a rudder plate in Embodiment 3 of the present invention.
  • Figure 10 is a cross-sectional view taken along line C-C of Figure 9.
  • Figure 11 is a schematic view showing the structure of the generator and the transmission in the upper portion in the third embodiment of the present invention.
  • 1 is the upper bracket
  • 2 is the synchronous gear
  • 3 is the generator
  • 4 is the transmission
  • 5 is the water wheel shaft
  • 6 is the rectifier B
  • 7 is the water wheel
  • 8 is the lower bracket
  • 9 is the rectifier A
  • 11 is a synchronous gear
  • 12 is a water wheel shaft
  • 13 is a positioning hole
  • 14 is a positioning hole
  • 15 is an upper buoyancy chamber
  • 16 is a lower buoyancy chamber
  • 17 is a rudder board
  • 18 is a traction cable hole.
  • a water flow power generating device as shown in FIGS. 1 and 2, includes a bracket, a water wheel 7, a water wheel 10, and a transmission 4 and a generator 3 driven by a water wheel 7 and a water wheel 10, the bracket having at least one And the bracket includes an upper bracket 1 and a lower bracket 8, and the transmission 4 and the generator 3 are located above the upper bracket 1.
  • a sharp-angled rectifying body A9 is fixedly connected between the upper bracket 1 and the lower bracket 8 at the water inlet end of the water wheel 7 and the water wheel 10, and the water wheel 7 and the water wheel 10 are located between the upper bracket 1 and the lower bracket 8.
  • the flow-out type rectifying body B6 is fixedly connected to the water outlet end, and the axis of the rectifying body A9 and the axis of the rectifying body B6 are collinear with the mid-perpendicular line connecting the water wheel 7 and the center line of the water wheel 10, and the upper bracket 1, the lower bracket 8, and the rectifying body
  • the A9 and the rectifying body B6 constitute a fixed mounting frame, and the water wheel shaft 5 and the water wheel shaft 12 are fixedly positioned by the upper bracket 1 and the lower bracket 8, thereby ensuring stable operation of the water wheel 7 and the water wheel 10.
  • At least two reversely rotating water wheels are fixed between the upper bracket 1 and the lower bracket 8 : an energy conversion surface in each of the water wheel 7 and the water wheel 10, and the water wheel 7 and the water wheel 10 (ie, blades rotating in the water direction)
  • the water-facing surface in the middle is a concave curved surface, and the adjacent water wheel 7 and the blades of the water wheel 10 are staggered with each other, and the same end of the water wheel 7 and the water wheel 10 are fixedly mounted with the synchronizing gears 2 that can mesh with each other and the synchronization.
  • the gear 11, the generator 3 is connected to the synchronizing gear 2, the synchronizing gear 11, the water wheel 7 and the water wheel 10 through the transmission 4, the water wheel shaft 5 and the water wheel shaft 12.
  • the setting mode of the generator 3 can take two forms: (1) The output of the water wheel shaft 5 or the water wheel shaft 12 is connected to the transmission 4 and the generator 3; (2) the output ends of the water wheel shaft 5 and the water wheel shaft 12 are connected to the transmission 4 and the generator 3, respectively.
  • the two sides of the sharp-angled rectifying body A9 along the axis thereof are straight or concave arcs
  • the bottom side is a concave arc or is composed of two arcs which are symmetric along the axis thereof and concave.
  • the frontal water flow at the axial end of the pointed end of the fluid A9 changes direction under the action of the two sides of the rectifying body A9, and redirects the water flow and the front water flow on both sides of the rectifying body A9 to impact the blades of the water wheel 7 and the water wheel 10 in an oblique direction.
  • the bottom of the concave curved surface, through the two sides of the rectifying body A9 and the concave curved blade structure of the water wheel 7 and the water wheel 10, can effectively improve the impact of the water flow on the blades of the water wheel 7 and the water wheel 10,
  • the utilization rate of water energy and the efficiency of power generation are improved;
  • the rectifier B6 is streamlined, and its bottom edge is a concave arc or consists of two arcs that are symmetric along its axis and concave.
  • concentric positioning holes 13 are provided on the water inlet 7 and the water inlet end of the water wheel 10: the upper bracket 1, the rectifying body A9 and the lower bracket 8; the water wheel 7 and the water wheel 10
  • the water outlet end: the upper bracket 1, the rectifier B6 and the lower bracket 8 are provided with concentric positioning holes 14.
  • the positioning holes 14 on the B6 and the lower bracket 8 and the lower ends of the two positioning piles are driven into the riverbed, thereby connecting the one or more sets of power generating devices arranged in the vertical direction together and firmly positioning.
  • the upper end of the two positioning piles can be connected to the fixed pile located upstream of the power generating device by the traction rope, so that the entire power generating device can be better positioned and fixed.
  • the entire power generation device can be extended in the vertical direction and the horizontal direction as needed to form a comb-like power generation network array to maximize the use of water energy for power generation, and is fixed by underwater fixed piles and anchor chains upstream of the power generation array.
  • the traction grid, the power grid is connected to the traction grid through the traction rope, and the traction grid can also intercept large floating objects upstream of the power grid.
  • the power grid array can be realized in the following manner: (1) Vertical direction: as shown in FIG. 3, two or more brackets are arranged in the vertical direction, and the transmission 4 and the generator 3 are fixed on the uppermost bracket.
  • the water wheel shaft 5 and the water wheel shaft 12 extend in the vertical direction to the lowermost bracket, so that the torque of the water wheel 7 and the water wheel 10 can be transmitted to the transmission 4 through the water wheel shaft 5 and the water wheel shaft 12 at the same time.
  • a plurality of parallel power generating devices are formed in the horizontal direction to maximize the interception of water flow energy and use the water flow to generate electricity.
  • the power generation device can adopt the following three installation modes: (1) Floating operation: a fixed pile is set under the water, and the power generation device is connected with the fixed pile through the traction rope, so that the power generation device floats, and at this time, the transmission 4 and the power generation The machine 3 floats above the water surface, and the rectifying body A and the rectifying body B can be made of a hollow structure or a light material (such as foam), so that the power generating device can better achieve stable floating operation; (2) sinking bottom installation: The bottom of the power generating device is fixed to a river (sea) bed, and the transmission 4 and the generator 3 operate on the water.
  • the rectifying body A and the rectifying body B may be filled with a heavy material (such as sand) in a solid structure or a hollow structure to increase the stability of the entire device; (3) full underwater installation work, at this time, the waterproof technology may It is implemented by using the prior art and will not be described here.
  • a heavy material such as sand
  • the power generating device can be applied in various occasions: (1) in the advection or water flow with a small slope, in which case any of the above fixed installation methods can be used; (2) for vertical water flow (such as waterfall) and water surface inclination For larger water flow, the bottom of the power generating device is fixedly mounted on the side wall above the flat water flow, and the upper part is fixed by the traction cable to keep the device perpendicular to the water flow direction; (3) for the deep water flow (such as ocean current) ), can be used in all underwater installations.
  • the embodiment is basically the same as the embodiment 1.
  • the upper bracket 1 and the lower bracket 8 are located at the water outlet end of the water wheel 7 and the water wheel 10, respectively.
  • the rectifying body A9 is fixedly connected, and the two surfaces of the blade of the water wheel in this embodiment are concave curved surfaces, as shown in FIG. 6; or as shown in FIG. 7, the blades of the water wheel are straight. .
  • the structure of this embodiment is suitable for utilizing tidal power generation. Since the tide is a two-way water flow, the water inlet end and the water outlet end of the device adopt the same rectifying body, and the two-way water flow generated by the tide can be fully utilized for power generation, and the power generation efficiency is high.
  • the embodiment is basically the same as the embodiment 1, except that in the embodiment, the upper buoyancy chamber 15 is provided on the upper portion of the upper bracket 1, and the lower buoyancy chamber is provided on the lower portion of the lower bracket 8. 16.
  • the generator 3 and the transmission 4 are located below the lower bracket 8 and are located in the lower buoyancy chamber 16, and both the buoyancy chamber 15 and the lower buoyancy chamber 16 are streamlined.
  • the generator 3 and the transmission 4 are disposed at the lower portion of the lower bracket 8, which can reduce the center of gravity of the power generating device and contribute to the stability of the power generating device.
  • the generator 3 and the transmission 4 in this embodiment may also be disposed in the upper portion of the upper bracket 1 and in the upper buoyancy chamber 15.
  • the structure of this embodiment is suitable for ocean current power generation.
  • the seawater In the ocean current power generation, the seawater is deep, and the seawater flows mainly in the upper part of the water.
  • the present invention provides buoyancy for the power generating device by providing a buoyancy chamber to ensure the stability of the entire power generating device.
  • the power generating device can be floated or anchored in the sea by a cable.
  • a cable hole 18 may be provided at the front end of the power generating device, and the traction cable anchors the power generating device in the sea through the cable hole 18.
  • the embodiment is basically the same as the embodiment 3, except that in the embodiment, a rudder plate 17 is provided at the tail of the bracket at the water outlet end, and the rudder plate 17 is similar to a fishtail. It consists of a horizontal wing and a vertical wing.
  • the generator 3 and the transmission 4 in this embodiment may also be disposed in the upper portion of the upper bracket 1 and in the upper buoyancy chamber 15, as shown in FIG.

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  • Combustion & Propulsion (AREA)
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  • Life Sciences & Earth Sciences (AREA)
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Abstract

一种水流发电装置,包括支架、水轮(7、10)和由水轮(7、10)驱动的变速器(4)和发电机(3),所述支架至少有一个,且该支架包括上支架(1)和下支架(8),上支架(1)和下支架(8)之间位于水轮(7、10)的进水端固定连接有尖角状的整流体A(9),上支架(1)和下支架(8)之间固定有至少两个逆向转动的水轮(7、10),且相邻水轮(7、10)的叶片相互交错排列,各水轮(7、10)的相同端分别连接有能相互啮合的同步齿轮(2、11),发电机(3)通过变速器(4)与水轮轴(5、12)、同步齿轮(2、11)和水轮(7、10)相连。在同步齿轮(2、11)的作用下,各水轮(7、10)可以同时逆向转动,且不会出现相邻水轮(7、10)的叶片相互碰撞和干扰的情况,各水轮的扭矩力也均能传递给发电机(3)用于发电,既可以提高水能的利用率,还可以提高发电效率,且整个发电装置结构简单,涉及制造成本低,安装方便,可以广泛适用于各种水流。

Description

一种水流发电装置 一种水流发电装置
技术领域:
  本发明涉及一种发电装置,尤其是一种水流发电装置。
背景技术:
绿色能源是世界各国共同关注和发展的事业,水能是其中的一种取之不尽、用之不竭、可再生、无污染的重要的绿色能源。世界上水能资源丰富,利用水能发电已成为世界各国能源发展战略的重要方向。传统的水利发电方式为:坝式水电站、引水式水电站和坝-引水混合式水电站。这几种方式均需建坝、蓄水,投资大,见效慢,甚至需要大规模移民。这就是现有技术所存在的不足之处。
发明内容:
本发明要解决的技术问题,就是针对现有技术所存在的不足,而提供一种不需要建坝、蓄水,投资少,见效快,大小流量的河水、洋流、潮汐、平流水、垂直流水均可适用的水流发电装置,该装置能有效地利用水能进行发电,且发电效率较高。
本方案是通过如下技术措施来实现的:该水流发电装置包括支架、水轮及由水轮驱动的变速器和发电机,通过变速器来改变和调整水轮传递给发电机的转速,以满足发电机发电的工作需要。所述支架至少有一个,且该支架包括上支架和下支架,变速器和发电机位于上支架上方,上支架与下支架之间固定有至少两个逆向转动的水轮,且相邻水轮的叶片相互交错排列,各水轮的相同端分别固定安装有能相互啮合的同步齿轮,所述上支架与下支架之间位于水轮的进水端固定连接有尖角状的整流体A。
上述水轮的叶片中,其能量转换面为内凹曲面,这样使叶片能够截取利用更多的流水,并使顺水方向转动的能量转换面产生的扭矩力大于逆水方向转动面(能量转换面的背面)产生的阻力,从而使水轮两侧顺水方向和逆水方向的叶片端产生压力差,从而保证两个水轮能正常的逆向转动。
上述上支架与下支架之间位于水轮的出水端固定连接有流线型的整流体B,整流体B既可以有效地支撑上支架与下支架;还能有效地防止水流在水轮的出水端形成旋涡,使整个发电装置不稳定,同时防止鱼等异物聚集在旋涡区域被叶片旋入水轮,影响水轮的作业效率,从而导致整个装置的发电效率降低。
为了适于利用潮汐发电,本发明中所述上支架与下支架之间位于水轮的出水端也固定连接有尖角状的整流体A。位于进水端和出水端的整流体A可以充分利用潮汐产生的双向水流进行发电。
当用于利用潮汐发电时,为了适于潮汐的双向水流,上述水轮的叶片为直板状或所述水轮的叶片的两个表面为内凹曲面。
当用于洋流发电时,由于洋流主要为海水上部的水流动,且海水较深,为了提高发电装置的稳定性,所述支架的上部和下部分别设有浮力舱,所述变速器和发电机位于浮力舱中。通过浮力舱为发电装置提供浮力,以保证整个发电装置的稳定性。为了提高发电装置整体的稳定性,所述浮力舱为流线型结构。
为了提高发电装置在洋流中运行的稳定性,本发明中,位于出水端的支架的尾部设有舵板。
上述尖角状的整流体A沿其轴线对称的两侧边为直线或内凹的弧线。整流体A尖角端轴线部位的正面水流在该结构的整流体A的作用下改变方向,使改向水流和整流体A两侧的正面水流斜向冲击各自方向的水轮叶片的能量转换面(内凹曲面),有效地提高了水流对水轮叶片的冲击力,使水轮的顺水端与逆水端之间的压力差增大,从而使两水轮能克服阻力逆向转动,产生扭矩力,并通过水轮轴和变速器将扭矩力传递给发电机进行发电,有效地提高了发电效率。
上述尖角状的整流体A的底边为内凹弧线或由两段沿其轴线对称、并内凹的弧线组成,其中两段内凹弧线分别与两个水轮对应。这种形状的整流体A为水轮转动留出转动空间,以防整流体A的底端会增大水轮转动的阻力,而导致整个发电装置的发电效率降低。
根据不同的工作需要,可以在上述其中一个水轮的水轮轴输出端连接有变速器和发电机,这样两个水轮的扭矩力通过两个相互啮合的同步齿轮均能传递给变速器,再通过变速器传递给发电机,用于发电,其发电效率较高;也可以在两个水轮的水轮轴输出端分别连接有变速器和发电机,这样两个水轮的扭矩力分别通过水轮轴传递给相应的变速器,再通过变速器传递给相应的发电机用于发电,水能的利用率和发电效率均较高。
该装置中沿垂直方向设置有两个或两个以上的支架,发电机固定于最上层支架中的上支架上方,使整个发电装置可以沿垂直方向延伸,从而能够更有效地利用水能,成倍地提高了水轮的扭矩力和发电效率。
该装置中沿水平方向设置有两个或两个以上的支架,发电机固定于各支架中的上支架上方,使整个发电装置可以根据需要沿水平方向延伸,从而沿水平方向形成发电排阵,有效地提高了水能的利用率和发电效率。
所述流线型的整流体B的底边为内凹弧线或由两段沿其轴线对称、并内凹的弧线组成,其中的两段弧线分别与两个水轮对应。这种形状的整流体B为水轮转动留出足够的转动空间,以防整流体B的底端会增大水轮转动的阻力,而导致整个发电装置的发电效率降低。
所述上支架、整流体A和下支架上设置有同心的定位孔,安装时,定位桩依次穿过上支架、整流体A和下支架上的定位孔,从而将整个发电装置串接在一起,定位桩的底端打入河床中,将整个发电装置固定。
为了达到更好的定位固定效果,在所述上支架、整流体B和下支架上设置有同心的定位孔,定位桩依次穿过上支架、整流体B和下支架上的定位孔,从而将整个发电装置串接在一起,定位桩的底端打入河床中,将整个发电装置固定。
本方案的有益效果可根据对上述方案的叙述得知,该水流发电装置中,至少设置有一个支架,且该支架包括上支架和下支架,上支架与下支架之间位于水轮的进水端固定连接有尖角状的整流体A,整流体A、上支架和下支架形成安装框架,用于固定安装水轮,并能使整个发电装置稳定的漂浮在水中或者通过牵引固定件牢固的固定在水中。变速器和发电机位于上支架上方,上支架与下支架之间固定有至少两个逆向转动的水轮,且相邻水轮的叶片相互交错排列,各水轮的相同端分别固定安装有能相互啮合的同步齿轮,发电机通过变速器及水轮轴与同步齿轮和水轮相连。由于相邻水轮的叶片初始状态是交错排列的,有效的缩小了水轮叶片逆水方向转动的迎流面积和阻力,增大了水轮顺水方向和逆水方向的压力差,且在同步齿轮的作用下,使各个水轮可以同时逆向转动,且不会出现相邻两水轮的叶片相互碰撞和干扰的情况,使各个水轮可以同时独立的工作,这样,各个水轮同时工作,且各个水轮的扭矩力也均能传递给发电机用于发电,既可以提高水能的利用率,还可以提高发电效率,且整个发电装置结构简单,设计制造成本低,安装方便,可以广泛适用于各种水流(如溪流、江河、洋流和潮汐等),既可以使其漂浮作业,也可将装置底部固定于河(海)床,使发电装置在水上工作,也可全水下安装作业。由此可见,本发明与现有技术相比,具有突出的实质性特点和显著的进步,其实施的有益效果也是显而易见的。
附图说明:
图1为本发明实施例1的主视结构示意图。
图2为图1中A-A向的剖视示意图。
图3为本实用新型沿垂直方向延伸使用的结构示意图。
图4为本发明实施例2的主视结构示意图。
图5为图4中的B-B向的剖视示意图。
图6为本发明实施例2中的水轮的结构示意图。
图7为本发明实施例2中的水轮的另一种结构示意图。
图8是本发明实施例3的结构示意图。
图9是本发明实施例3中带有舵板的结构示意图。
图10是图9中C-C向的剖视示意图。
图11是本发明实施例3中发电机和变速器位于上部时的结构示意图。
图中,1为上支架,2为同步齿轮,3为发电机,4为变速器,5为水轮轴,6为整流体B,7为水轮,8为下支架,9为整流体A,10为水轮,11为同步齿轮,12为水轮轴,13为定位孔,14为定位孔,15为上浮力舱,16为下浮力舱,17为舵板,18为牵引索孔。
具体实施方式:
为能清楚说明本发明的技术特点,下面通过实施例并结合其附图,对本发明进行说明:
实施例1
一种水流发电装置,如图1和图2所示,它包括支架、水轮7、水轮10和由水轮7和水轮10驱动的变速器4和发电机3,所述支架至少有一个,且该支架包括上支架1和下支架8,变速器4和发电机3位于上支架1上方。上支架1与下支架8之间位于水轮7和水轮10的进水端固定连接有尖角状的整流体A9,上支架1与下支架8之间位于水轮7和水轮10的出水端固定连接有流线型的整流体B6,整流体A9的轴线、整流体B6的轴线与水轮7和水轮10圆心连线的中垂线共线,上支架1、下支架8、整流体A9和整流体B6组成固定安装框架,通过上支架1和下支架8将水轮轴5和水轮轴12固定定位,从而保证水轮7和水轮10稳定的工作。
上支架1与下支架8之间固定有至少两个逆向转动的水轮:水轮7和水轮10,水轮7和水轮10的各叶片中的能量转换面(即顺水方向转动的叶片中的迎水面)为内凹曲面,且相邻的水轮7和水轮10的叶片相互交错排列,水轮7和水轮10的相同端分别固定安装有能相互啮合的同步齿轮2和同步齿轮11,发电机3通过变速器4、水轮轴5和水轮轴12与同步齿轮2、同步齿轮11、水轮7和水轮10相连,发电机3的设置方式可以采用两种形式:(一)水轮轴5或水轮轴12的输出端连接有变速器4和发电机3;(二)水轮轴5和水轮轴12的输出端分别连接有变速器4和发电机3。
其中,尖角状的整流体A9沿其轴线对称的两侧边为直线或内凹的弧线,其底边为内凹弧线或由两段沿其轴线对称、并内凹的弧线组成。整流体A9尖角端的轴线部位的正面水流在整流体A9的两侧边的作用下改变方向,改向水流和整流体A9两侧的正面水流沿倾斜方向冲击水轮7和水轮10的叶片的内凹曲面的底部,通过整流体A9的两侧边及水轮7和水轮10的内凹曲面叶片结构,可以有效地提高水流对水轮7和水轮10的叶片的冲击力,以提高水能的利用率和发电效率;整流体B6呈流线型,且其底边为内凹弧线或由两段沿其轴线对称、并内凹的弧线组成。
为了更好的固定整个发电装置,在水轮7和水轮10的进水端:上支架1、整流体A9和下支架8上设置有同心的定位孔13;在水轮7和水轮10的出水端:上支架1、整流体B6和下支架8上设置有同心的定位孔14。这种结构形式就可以实现沿垂直方向,一根定位桩依次穿过各上支架1、整流体A9和下支架8上的定位孔13,另一根定位桩依次穿过上支架1、整流体B6和下支架8上的定位孔14,两定位桩的下端打入河床中,从而将沿垂直方向设置的一组或多组发电装置串接在一起并牢固的定位。两定位桩的上端可以通过牵引绳与位于发电装置上游的固定桩连接,从而可以将整个发电装置更好的定位固定。
整个发电装置可以根据需要沿垂直方向和水平方向延伸,形成梳网状的发电网阵,以最大限度地利用水能进行发电,并在发电网阵的上游通过水下固定桩和锚链固定有牵引网架,发电网阵通过牵引绳与牵引网架相连,牵引网架还可以对发电网阵上游的大型漂浮物进行拦截。发电网阵具体可以采用如下方式实现:(一)垂直方向:如图3所示,沿垂直方向设置有两个或两个以上的支架,变速器4和发电机3固定于最上层支架中的上支架1的上方,水轮轴5和水轮轴12沿垂直方向延伸至最下层的支架中,使水轮7和水轮10的扭矩力可以同时通过水轮轴5、水轮轴12传递给变速器4,再通过变速器4传递给发电机3;(二)水平方向:在平流或水面斜度较小的水流中,沿水平方向设置有两个或两个以上的支架,变速器4和发电机3固定于各支架中的上支架1的上方,从而在水平方向形成多个并列的发电装置,以最大限度地截取水流能,利用水流进行发电。
本发电装置可以采用如下三种安装方式:(一)漂浮作业:在水下设置固定桩,通过牵引绳将本发电装置与固定桩相连,使本发电装置漂浮作业,此时,变速器4和发电机3漂浮在水面以上,整流体A和整流体B可以采用空心结构或轻体材料(如泡沫)制成,以使本发电装置能更好的实现稳定漂浮作业;(二)沉底安装:将本发电装置底部固定于河(海)床,变速器4和发电机3在水上工作。此时,整流体A和整流体B可以采用实心结构或空心结构内灌注重体材料(如沙子等),以增加整个装置的稳定性;(三)全水下安装作业,此时,防水技术可以采用现有技术实现,在此不再赘述。
本发电装置可以应用在多种场合:(一)在平流或水面斜度较小的水流,此时可以采用上述任意一种固定安装方式;(二)对于垂直水流(如瀑布)和水面斜度较大的水流,采用将本发电装置的底部固定安装于平水流以上的侧壁上,上部用牵引索牵引固定,使装置保持与水流方向垂直;(三)对于深度较大的水流(如洋流),可采用全水下安装使用。
实施例2
如附图4-5所示,本实施例与实施例1基本相同,不同之处是:本实施例中,上支架1与下支架8之间位于水轮7和水轮10的出水端也固定连接有尖角状的整流体A9,且本实施例中的水轮的叶片的两个表面为内凹曲面,如图6所示;或如图7所示,水轮的叶片为直板状。
本实施例的结构适用于利用潮汐发电。由于潮汐为双向水流,装置的进水端和出水端采用相同的整流体,可以充分利用潮汐产生的双向水流进行发电,发电效率高。
本实施例的其他部分与实施例1相同,在此不再赘述。
实施例3
如附图8所示,本实施例与实施例1基本相同,不同之处是:本实施例中,在上支架1的上部设有上浮力舱15,在下支架8的下部设有下浮力舱16,发电机3和变速器4位于下支架8的下方并位于下浮力舱16中,上浮力舱15和下浮力舱16均采用流线型结构。本实施例将发电机3和变速器4设置在下支架8的下部,可以降低发电装置的重心,有利于发电装置的稳定性。当然,为了便于检修和维护,本实施例中的发电机3和变速器4也可以设置在上支架1的上部并位于上浮力舱15中。
本实施例的结构适用于洋流发电。由于洋流发电中,海水较深,且海水的流动主要在水的上部,本发明通过设置浮力舱为发电装置提供浮力,以保证整个发电装置的稳定性。本发电装置可以漂浮设置或通过缆线锚固在海中。当本发电装置通过缆线锚固于海中时,可在发电装置的前端设置牵引索孔18,牵引缆线通过牵引索孔18将发电装置锚固于海中。
本实施例的其他部分与实施例1基本相同,在此不再赘述。
实施例4
如附图9-10所示,本实施例与实施例3基本相同,不同之处是:本实施例中,在位于出水端的支架的尾部设有舵板17,该舵板17类似鱼尾状,由水平翼板和垂直翼板构成。通过设置舵板17可以提高发电装置在洋流中运行的稳定性,以保证发电装置的安全及发电效率。本实施例中的发电机3和变速器4也可以设置在上支架1的上部并位于上浮力舱15中,如图11所示。
本实施例的其他部分与实施例3相同,在此不再赘述。
本发明并不仅限于上述实施例,本领域普通技术人员在本发明的实质范围内做出的变化、改型、添加或替换,也应属于本发明的保护范围。

Claims (17)

  1. 一种水流发电装置,它包括支架、水轮及由水轮驱动的变速器和发电机,其特征是:所述支架至少有一个,且该支架包括上支架和下支架,变速器和发电机位于上支架上方,上支架与下支架之间固定有至少两个逆向转动的水轮,且相邻水轮的叶片相互交错排列,各水轮的相同端分别固定安装有能相互啮合的同步齿轮,所述上支架与下支架之间位于水轮的进水端固定连接有尖角状的整流体A。
  2. 根据权利要求1所述的水流发电装置,其特征是:所述水轮的叶片中,其能量转换面为内凹曲面。
  3. 根据权利要求1所述的水流发电装置,其特征是:所述上支架与下支架之间位于水轮的出水端固定连接有流线型的整流体B。
  4. 根据权利要求1所述的水流发电装置,其特征是:所述上支架与下支架之间位于水轮的出水端也固定连接有尖角状的整流体A。
  5. 根据权利要求4所述的水流发电装置,其特征是:所述水轮的叶片为直板状或所述水轮的叶片的两个表面为内凹曲面。
  6. 根据权利要求1或2或3所述的水流发电装置,其特征是:所述支架的上部和下部分别设有浮力舱,所述变速器和发电机位于浮力舱中。
  7. 根据权利要求6所述的水流发电装置,其特征是:所述浮力舱为流线型结构。
  8. 根据权利要求6或7所述的水流发电装置,其特征是:位于出水端的支架的尾部设有舵板。
  9. 根据权利要求1或2或3或4或5或6或7或8所述的水流发电装置,其特征是:所述尖角状的整流体A沿其轴线对称的两侧边为直线或内凹的弧线。
  10. 根据权利要求9所述的水流发电装置,其特征是:所述尖角状的整流体A的底边为内凹弧线或由两段沿其轴线对称、并内凹的弧线组成。
  11. 根据权利要求1或2或3或4或5或6或7或8或9或10所述的水流发电装置,其特征是:其中一个水轮的水轮轴输出端连接有变速器和发电机。
  12. 根据权利要求1或2或3或4或5或6或7或8或9或10所述的水流发电装置,其特征是:两个水轮的水轮轴输出端分别连接有变速器和发电机。
  13. 根据权利要求1或2或3或4或5所述的水流发电装置,其特征是:沿垂直方向设置有两个或两个以上的支架,发电机固定于最上层支架中的上支架上方。
  14. 根据权利要求1或2或3或4或5所述的水流发电装置,其特征是:沿水平方向设置有两个或两个以上的支架,发电机固定于各支架中的上支架上方。
  15. 根据权利要求3所述的水流发电装置,其特征是:所述流线型的整流体B的底边为内凹弧线或由两段沿其轴线对称、并内凹的弧线组成。
  16. 根据权利要求1或2或3或4或5所述的水流发电装置,其特征是:所述上支架、整流体A和下支架上设置有同心的定位孔。
  17. 根据权利要求3所述的水流发电装置,其特征是:所述上支架、整流体B和下支架上设置有同心的定位孔。
PCT/CN2012/072247 2011-03-30 2012-03-13 一种水流发电装置 WO2012130037A1 (zh)

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CN201220082345.2 2012-03-07
CN2012200821758U CN202468150U (zh) 2012-03-07 2012-03-07 一种水流发电装置
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