WO2022016825A1 - Dispositif de production d'énergie utilisant des barrages de retenue d'eau ayant respectivement des canaux d'eau en forme de cloche - Google Patents

Dispositif de production d'énergie utilisant des barrages de retenue d'eau ayant respectivement des canaux d'eau en forme de cloche Download PDF

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Publication number
WO2022016825A1
WO2022016825A1 PCT/CN2021/000094 CN2021000094W WO2022016825A1 WO 2022016825 A1 WO2022016825 A1 WO 2022016825A1 CN 2021000094 W CN2021000094 W CN 2021000094W WO 2022016825 A1 WO2022016825 A1 WO 2022016825A1
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Prior art keywords
water
bell
river
dam
bell mouth
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PCT/CN2021/000094
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English (en)
Chinese (zh)
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谢沛鸿
谢晓曼
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谢沛鸿
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Publication of WO2022016825A1 publication Critical patent/WO2022016825A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/02—Water-ways
    • 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

Definitions

  • the invention belongs to the technical field of water conservancy and hydropower.
  • the utility model relates to a bell mouth water bag type choke dam power generation device, which relates to a low dam water conservancy and hydropower technical scheme which is composed of a bell mouth water bag type choke dam and a power generation device.
  • Select the appropriate river section that is, the place where the river surface width, flow velocity, water depth, drop and other parameters are suitable, and construct the bell mouth water bag choke dam in the underwater horizontal river.
  • the function of the choke dam slows down the speed of the river water, causing the upstream water level to rise, making it easier to navigate.
  • the water surface is flush with the choke dam, and it can overflow from the top when the water volume is large.
  • At the bottom of the choke dam there are empty movable fences.
  • the water flow passes through the bottom of the fence, and the flow velocity is accelerated, which is beneficial to remove the sediment deposited upstream due to the choke and slow flow. Therefore, it is not necessary to cut off the river, which is conducive to the migration and habitation of aquatic animals upstream and downstream.
  • the most important thing is that the main flow flows downstream into the bell mouth horizontal funnel-shaped water bag, and the water turbine and generator are installed at the water outlet at the bottom of the bell mouth water bag, and the water flow whose pressure increases the flow rate is used to impact the water turbine to generate electricity.
  • the space left by the fence at the bottom of the choke dam can be adjusted to maintain the water level, velocity and flow according to real-time changing hydrological conditions.
  • the principle is that the flow of upstream water should not be less than the effluent left at the bottom of the choke dam plus the power generation effluent at the bottom of the bell mouth water bag.
  • the bell mouth of the choke dam can be automatically adjusted and lowered to completely shrink to the bottom of the river bed to ensure unobstructed flow.
  • the bell mouth water bag type choke dam is close to the two banks to leave space for the construction of liftable and adjustable ship locks or passage waterways.
  • the bell mouth water bag choke dam is made into a horizontal funnel-shaped power generation device integrated with a hydro-generator. The tail water outlet of this power generation device still has accelerated water flow, which can scour and remove sediment deposited on the river bottom.
  • dams to store water and drive hydro-turbine generators to generate electricity
  • hydroelectric power generation technology the construction of reservoirs or dams to store water and drive hydro-turbine generators to generate electricity.
  • dam hydropower project still fails to make full use of all the water resources and water energy of the river, and there are various concerns about the natural environment, ecology and safety. There is no need to go into detail.
  • Canadian beavers are able to bite off thick tree trunks, drag tree trunk branches into valley streams and build dams similar to fences, creating deep ponds upstream, and turning pebble shallow streams into deep ponds. Active in deep ponds to avoid the attacks of predators.
  • the beaver blocking dam can let the water flow through the gaps between the trunks and branches without cutting off the stream, and the fish can go upstream to the quiet pond to lay their eggs and hatch, which is a harmonious natural environment.
  • Beavers are active in different ponds, because the upstream streams continue to flow down, filling up section after section.
  • the cascade ponds actually play a natural role of delaying the rapid loss of stream water and preventing the stream bed from being exposed.
  • the river water can pass through the gap at the bottom of the barrier dam, and the water flow is accelerated, which helps to remove the sediment that has been carried away.
  • Such a fence choke dam can not only utilize water resources as much as possible, but also maintain the water flow of the river and maintain a healthy water environment.
  • the formation of the Qiantang River tide has natural geographical conditions.
  • the two ends of the Hangzhou Bay at the mouth of the Qiantang River are hundreds of kilometers wide. It connects with the top tide viewing point to form a horn-like funnel-like terrain. impact.
  • This is the reason for the water pressure.
  • the continuous pressure of the water flow remains unchanged, and the cross-sectional area at the entrance of the water flow remains unchanged.
  • the cross-sectional area of the water channel gradually shrinks and the bottom of the river rises, the water flow pressure increases, and the impact force also increases.
  • the downstream bell mouth water bag type power generation device can be built along the river.
  • rubber dam is a kind of gravity dam. Low dams are characteristic of rubber dams and are also removable dams. River water flows over the top of the rubber dam, creating a waterfall landscape.
  • rubber dams are mainly used for retaining water to raise the water level, and generally do not have the function of generating electricity.
  • the rubber dam in order to fix the rubber dam, it is necessary to dig trenches on the river bed, so that the rubber dam sits on the bottom of the river. Therefore, the rubber dam also cuts off the river flow, which is not conducive to the migration and habitation of aquatic animals.
  • a bell mouth water bag type choke dam power generation device the specific content of which includes the following:
  • the river surface is 100m wide, the water depth is 6m, and the flow rate is 1m per second, and a hydropower station with a bell mouth water bag choke dam power generation device is constructed.
  • three connected rigid funnel-shaped water-bag choke dams each 20m wide, 5m high and 1m empty at the bottom, can be built.
  • Several flared squares are connected to reduce flow and water flow loss.
  • the bottom is left empty for 1m, in order to keep the upstream and downstream of the river connected, and use the water flow to discharge the sand.
  • the 1m installation of rolling shutter type fence with controllable height at the bottom can be adjusted to fully open or fully close the interception according to needs.
  • the length of the bell mouth water bag is 3 times the width of 60m, and increasing the depth can increase the pressure.
  • the tail of the funnel-shaped water bag is a 1m square water outlet pipe, which is connected to the hydro-generator driven by the strong water flow due to the increase in pressure.
  • the bell mouth funnel-shaped water bag type power generation device is inclined and lying along the river flow. The inclination of the bell mouth water bag causes a certain gravitational potential energy of the water flow, and can avoid sediment deposition in the bell mouth water bag.
  • the upper width of the inlet bell mouth is flush with the water, the lower width is suspended on the river bed for 1m, and a controllable rolling shutter fence is set in the gap between the water inlet and the river bed.
  • the tail of the bell-mouth funnel-shaped water bag is connected to the water inlet of the turbine and is flush with the river bed, resulting in a long slope of 1m ⁇ 0m and 60m long.
  • the water turbine is located on the river bed, and the generator connected with the water turbine is arranged in the sealed culvert channel buried in the lower part of the river bed.
  • the bell mouth funnel-shaped water bag is a horizontal three-dimensional structure composed of two sides and four sides of the upper and lower sides, such as steel and other rigid material plates.
  • the water inlet of the bell mouth and the water inlet to the turbine at the bottom are empty.
  • the lower bottom panel and the two side panels are connected by hinged hinges, and the two sides are supported by several hydraulic devices at right angles, and the winch pulley wire rope device is used for pulling recovery and tension reset fixation.
  • the grooves of the upper cover panel are embedded with the embedded falcons of the two side panels, which can be controlled to be disengaged or embedded.
  • the two sides of the cover panel of the bell mouth are provided with grooves from beginning to end, and the upper sides of the two side panels are embedded
  • the falcon is embedded in the groove and fixed.
  • the tail of the upper cover is connected with the upper door hinge of the water turbine.
  • the bell mouth funnel-shaped water bag normally enters the water, and the water is discharged under pressure to generate electricity.
  • the four panels of the bell mouth water bag can be loosened and contracted and stacked on the river bed, which is convenient for flood discharge.
  • the bell mouth funnel-shaped water bag can be automatically controlled and reset.
  • the oblique string hydraulic pump screw of the hydraulic device supported at right angles on both sides of the outside pushes the two side panels inward, so that the embedded falcon is separated from the groove of the upper cover, and falls inward to an angle of 45 degrees.
  • the screw of the pressure pump relaxes the pressure and retracts.
  • the upper cover plate connected to the water turbine with the door hinge and the rear water inlet is pressed down by gravity, and is connected with the two side panels that are falling inward, and the gravity pressure of the cover plate is added to the top of the two side panels.
  • the ball bearing on the upper cover of the bell mouth is connected with the ball bearing at the top of the two side panels that are falling inward to reduce frictional resistance, and they fall horizontally and overlap on the lower panel of the river bed one after another.
  • a set of equipment for pulling and recovering the side panel composed of a winch, a pulley and a wire rope.
  • One end of the wire rope is fastened to a loop on the outer upper part of the side panel.
  • the vertical hydraulic pumps on both sides of the square bell mouth support the top cover to a certain height
  • the motor winch tightens the wire rope through the pulley, and pulls the two side panels outward to restore to 45 degrees and continues to pull until it stands upright.
  • the ball bearing at the top of the side and the ball bearing on the cover surface roll to the top of both sides
  • the embedded falcon on the edge of the side panel is re-inserted into the groove of the cover
  • the wire rope is tightened and fixed, and the bell mouth water bag returns to its original state.
  • a trench is dug on the river bed to bury a sealed culvert channel, and three or more generators connected to the turbine are placed inside.
  • the turbine and generator are integrated. Certainly.
  • the exit of the Hengjiang culvert channel is located in the control building of the power station room on both banks.
  • the remaining 20m width on both sides of the river can be built through the ship lock.
  • the purpose of building a ship lock is to intercept the flow of water, raise the water level, and prevent the flow of water from being lost in vain.
  • the water resources of rivers with low flow and shallow flow are very precious.
  • the actual situation of each river and each river section is different, and the hydropower station should be designed according to the river surface width and water depth. If the water depth is much more than 6m, the bell mouth water bag type choke dam power generation device can be installed below the river surface, and the navigable ships can pass over the choke dam crest without having to do a ship lock.
  • the size of the water inlet area of the bell mouth, the shape and size of the water bag can also be adjusted, manufactured and installed according to the actual situation of the river hydrology.
  • the bell mouth water bag type choke dam power generation device hydropower station will not hinder the navigation of ships, raise the water level, and create better conditions for the navigation of ships.
  • choke dams slow the flow of water, retaining valuable flow without reducing the hydrodynamic force that washes the river.
  • the bell-mouth water-bag choke dam can be made to completely block the flow first, and after reaching a certain water depth, then open the bottom of the fence to a certain extent and the shutter-type opening to flow through.
  • the upstream water should not be less than the outlet water of the roller shutter type blank outlet plus the flow rate of the driving power generation device. In this way, many regional short rivers with a length of only tens of kilometers or only 100 kilometers with a slight drop can retain the flow and use water. Distance by ship, can create water features and aquaculture, can be used for agricultural irrigation and industrial water.
  • the hydropower station of the bell mouth water bag-type choke dam power generation device should be constructed in a suitable river section
  • the various components of the hydropower station the four-sided door hinged rigid hinge of the bell mouth funnel-shaped water bag, the hinge door hinge Bearings, turbines and generators, as well as various standard sections of the Hengjiang sealed culvert channel, rolling shutter doors at the bottom of the choke dam, hydraulic systems on both sides of the right-angle support water bag, motor winch system for the recovery and reset of the water bag, etc., must be in advance.
  • P generating power
  • G gravity constant 9.8
  • Q second flow rate (cross-sectional area of river X second velocity)
  • H water head height
  • ⁇ working efficiency of turbine and generator.
  • This formula is applied to high-head gravity hydropower generation in dam reservoirs.
  • This formula can be applied to the bell mouth water bag choke dam power generation device conditionally, but there are large uncertain variables.
  • the horizontal funnel shape of the bell-mouth water bag also increases the pressure, which is also a variable.
  • Liquid pressure calculation formula: P pGH, which is the liquid pressure calculation formula in a vertical regular container (such as a cylinder or a cube).
  • P pressure
  • unit is Pa
  • p water liquid density
  • unit is 1 ton/m3
  • the power of the bell mouth water bag choke dam power generation device with each bell mouth sectional area is 20mX5m, depth is 60m, and the bottom turbine inlet is 1mx1m is 980kw. Since there are many big variables in the actual situation , for example, if the water velocity gradually increases by more than 1m/s, so t will be less than 60 seconds, and the actual power generated will increase.
  • the above conditional correlation calculation should not be completely correct, it just proves the principle that the bell mouth water bag choke dam power generation device can be used for power generation, and the water flow with increased pressure can drive the hydro-generator generating electricity.
  • the installed capacity of the hydro-generator should be calculated according to the actual situation.
  • FIG. 1 Flare water bag type choke dam power generation device (aerial top view)
  • the dotted line is the culvert channel for placing the hydro-generator set under the river bed.
  • the dotted lines are the rolling shutters that are left empty at the lower part of the water inlet of the bell mouth water bag.
  • FIG. 2 Upstream right and downstream left views of the power generation device of a single bell mouth water bag choke dam
  • the dotted line is the rolling shutter fence that is left empty at the lower part of the water inlet of the bell mouth water bag.
  • the bell mouth water bag has the upper edge of the ball bearing.
  • the upper cover of the bell mouth water bag is supported by the hydraulic pump erected at a right angle.
  • the thick black string hydraulic pump pushes the two side plates inward to 45 degrees.
  • the dotted line is the culvert channel where the hydro-generator set is placed under the riverbed.
  • Figure 3 Aerial top view of the power generation device of a single bell mouth water bag choke dam
  • the dotted line is the rolling shutter fence that is left empty at the lower part of the water inlet of the bell mouth water bag.
  • the dotted line is the connection between the upper edge of the panels on both sides of the bell mouth water bag and the groove of the upper cover plate. [0055] 13, 14, 15, 16, 17, 18, the hydraulic pump and winch device for the support, retraction and recovery of the two side panels of the bell mouth water bag.
  • the upper cover of the bell mouth water bag is connected to the door hinge above the bottom water turbine.
  • the dotted line is the culvert channel for placing the hydro-generator set under the river bed.
  • Figure 4 Front view of the downstream section of the power generation device with a single bell mouth water bag choke dam
  • the side of the bell mouth water bag supports the hydraulic pump at the edge of the water inlet on the upper cover.
  • the upper cover of the bell mouth water bag is connected to the hinge door hinge above the water turbine.
  • the dotted line is the connection of the embedded groove where the side panel of the bell mouth water bag is combined with the upper cover.
  • the dotted line is the rolling shutter fence left empty at the lower part of the water inlet of the bell mouth water bag.
  • Figure 5 Schematic diagram of the release and shrinkage of a single bell mouth water bag
  • the hydraulic pump pushes the panels on both sides of the bell mouth water bag to invert by 45 degrees, and the upper cover panel is pressed down by gravity. [0078] 2, the four panels on the upper and lower sides of the bell mouth water bag are all loosened and contracted to be horizontally superimposed on the riverbed.
  • the dotted line is the rolling shutter fence that is left empty at the lower part of the water inlet of the bell mouth water bag.
  • the hydraulic pump pushes the two side panels of the bell mouth water bag to dump 45 degrees inward.
  • the ball bearings at the top of the panels on both sides are connected with the ball bearings on the edge of the water inlet and travel with less resistance.
  • the ball bearing on the top of the side panel is in contact with the ball bearing on the edge of the upper covering surface.
  • Figure 6 Aerial top view of a single bell mouth water bag being released and retracted horizontally superimposed on the river bed
  • a large isosceles triangle is the horizontal overlap of the upper and lower and side panels.
  • the two side panels are horizontally stacked between the lower panel and the upper cover panel.
  • the dotted line here is the rolling shutter fence that is left empty at the lower part of the water inlet of the bell mouth water bag.
  • the upper cover is connected to the door hinge above the water turbine.
  • Figure 7 Expanded view of the four panels of a single bell mouth water bag outwards
  • the upper cover panel is connected to the hinge door hinge on the top of the turbine.
  • Figure 8 Schematic diagram of recovery and reassembly of a single flared water bag
  • the bell mouth water bag is half restored. [0110] 2, the bell mouth water bag is reassembled and restored to a full working state.
  • the restored bell mouth water bag has the upper edge of the ball bearing, which is connected to the side panel at a 45-degree angle.
  • the fully restored bell mouth water bag has the upper edge of the ball bearing, and the two side panels have been embedded in the groove to connect the support. [0115] 10, 11, place the culvert channel of the hydroelectric generator under the riverbed.
  • the dotted line here is the roller shutter fence that is left empty at the lower part of the water inlet of the bell mouth water bag.
  • Figure 9 A hydropower station and river integrated water conservancy system of a bell mouth water bag-type choke dam power generation device
  • the drainage gates of the integrated water conservancy water network to the downstream section of the main stream where the topography is low and the water level is low.
  • the bell-mouth water bag-type choke dam power generation device the power is sufficient, and the water can be drained by electricity inside and outside the main river embankment, depending on the water level and flood situation.
  • a hydropower station with a bell mouth water bag type choke dam power generation device choose a suitable river location. Assumption: The normal river surface is 100m wide, the water depth is 6m, and the average flow rate is 1m per second.
  • flexible rubber dams are used to quickly get out of the power station construction ground on the river bed, and earthwork and cement pouring infrastructure for digging trenches and burying the culverts of the Hengjiang River are carried out.
  • various components of the hydropower station are manufactured in the factory according to standard modules and shipped to the hydropower station site for installation.
  • a hydropower station with a bell mouth water bag-type choke dam power generation device can delay the loss of flow and maximize the use of water resources, while maintaining the river's hydrodynamics and other natural functions.
  • a hydropower station with a bell mouth water bag-type choke dam power generation device can be used as one of the options, and follow the natural way.
  • the components of the hydropower station where the bell mouth water bag choke dam power generation device is built can be manufactured in the factory according to the standard standard modules, the hydropower industry can increase the production capacity of the manufacturing industry and expand the capacity and scale of the advanced manufacturing industry.
  • the reservoir dam should be suitable, and the blocking dam hydropower should also be suitable. If hydropower becomes the first energy source, the country will be fine.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

La présente invention concerne un dispositif de production d'énergie utilisant des barrages de retenue d'eau ayant respectivement des canaux d'eau en forme de cloche. Dans une section de rivière appropriée, des barrages de retenue d'eau ayant respectivement des canaux d'eau en forme de cloche sont construits sous l'eau à travers la rivière. Chaque barrage de retenue d'eau affleure la surface de l'eau, et une barrière réglable et pouvant être contrôlée est disposée au niveau d'un espace vide au fond du barrage et permet à l'eau de passer à travers, de façon à faciliter l'élimination des sédiments en amont. De cette manière, la rivière n'a pas besoin d'être bloquée, ce qui permet aux animaux aquatiques de se déplacer en amont ou en aval pour migrer ou pour établir des habitats. Le flux principal d'eau entre dans les canaux d'eau en forme de cloche qui sont horizontaux en forme d'entonnoir, et une turbine à eau et un générateur sont disposés au niveau d'une sortie d'eau au fond de chaque canal d'eau en forme de cloche, ce qui permet à la vitesse d'écoulement de l'eau d'augmenter en raison de l'intensité de pression, et d'entraîner la turbine à eau pour générer de l'électricité en conséquence.
PCT/CN2021/000094 2020-07-24 2021-04-29 Dispositif de production d'énergie utilisant des barrages de retenue d'eau ayant respectivement des canaux d'eau en forme de cloche WO2022016825A1 (fr)

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CN202010742340.7A CN111893966B (zh) 2020-07-24 2020-07-24 一种喇叭口水袋式阻流坝发电装置
CN202010742340.7 2020-07-24

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Publication number Priority date Publication date Assignee Title
CN111893966B (zh) * 2020-07-24 2021-04-20 谢沛鸿 一种喇叭口水袋式阻流坝发电装置
CN113297753B (zh) * 2021-06-24 2023-02-28 四川大学 山区河流透过性坝沿程水深预测方法

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CN101089386A (zh) * 2006-06-13 2007-12-19 黄辉 新型水能发电的结构方法
KR101258892B1 (ko) * 2011-10-10 2013-04-30 송태원 복수의 터빈과 유로를 이용한 수력 발전 장치
US20140018963A1 (en) * 2006-06-23 2014-01-16 Hans Christian Behm Adjustable weir for hydroelectric dam installations
CN104314043A (zh) * 2014-11-04 2015-01-28 杨德林 用于防洪和发电的江河大堤
CN104863086A (zh) * 2015-06-01 2015-08-26 杨德林 利用海水发电的防波堤
CN110080930A (zh) * 2018-01-25 2019-08-02 广州光环能源科技有限公司 河底发电站
CN111893966A (zh) * 2020-07-24 2020-11-06 谢沛鸿 一种喇叭口水袋式阻流坝发电装置

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CN101737227A (zh) * 2008-11-12 2010-06-16 上海市向明中学 一种水力发电软管
CN206204874U (zh) * 2016-11-24 2017-05-31 郑州大学 一种便于移动的折叠式防洪堤坝

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Publication number Priority date Publication date Assignee Title
CN101089386A (zh) * 2006-06-13 2007-12-19 黄辉 新型水能发电的结构方法
US20140018963A1 (en) * 2006-06-23 2014-01-16 Hans Christian Behm Adjustable weir for hydroelectric dam installations
KR101258892B1 (ko) * 2011-10-10 2013-04-30 송태원 복수의 터빈과 유로를 이용한 수력 발전 장치
CN104314043A (zh) * 2014-11-04 2015-01-28 杨德林 用于防洪和发电的江河大堤
CN104863086A (zh) * 2015-06-01 2015-08-26 杨德林 利用海水发电的防波堤
CN110080930A (zh) * 2018-01-25 2019-08-02 广州光环能源科技有限公司 河底发电站
CN111893966A (zh) * 2020-07-24 2020-11-06 谢沛鸿 一种喇叭口水袋式阻流坝发电装置

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