CN115478973A - Multi-scale gravity energy storage facility and method for driving energy conversion by pumping and draining water (liquid) of water (liquid) turbine - Google Patents
Multi-scale gravity energy storage facility and method for driving energy conversion by pumping and draining water (liquid) of water (liquid) turbine Download PDFInfo
- Publication number
- CN115478973A CN115478973A CN202211075262.5A CN202211075262A CN115478973A CN 115478973 A CN115478973 A CN 115478973A CN 202211075262 A CN202211075262 A CN 202211075262A CN 115478973 A CN115478973 A CN 115478973A
- Authority
- CN
- China
- Prior art keywords
- heavy
- water
- reservoir
- load
- duty
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
-
- 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
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a multi-scale gravity energy storage facility and a method for driving energy conversion by pumping and draining water (liquid) of a water (liquid) turbine, and relates to the technical field of multi-scale energy storage. The facility comprises a water pumping energy storage device: the system comprises a heavy-load reservoir system 2 (namely a heavy-load energy storage pool, the same below), one or more water turbine power generation devices (such as 1 and 4), a side pressure buffer structure of the reservoir and the load facility, a heavy-load buffer device at the bottom of the reservoir, a side pressure buffer hydraulic system device 5 of the inner wall of the heavy-load reservoir and the load facility, a common reservoir 3 (which can also be omitted, and the water storage function of the common reservoir is arranged at the upper part of the heavy-load reservoir 2), and the like. The invention pumps water from a full-sealed water jacket of a heavy-load reservoir through a water hammer preventing device, an electric valve and the like by a water turbine (reversible or a water turbine which is independently separated from water pumping energy storage and water drainage power generation) and drives heavy-load ascending energy storage by water pressure; then, the heavy load is utilized to drive the water turbine by water pressure to drive the generator to generate electricity, and the operation is repeated.
Description
Technical Field
The invention relates to the field of multi-scale energy storage, in particular to a multi-scale gravity energy storage facility and a method for driving energy conversion by pumping and draining water of a water turbine.
Background
The energy storage device/facility is a device/facility for storing energy, and the energy storage device/facility usually comprises pumped storage, flywheel storage, compressed air storage, hydrogen and other synthetic fuel storage, electrochemical storage, capacitor storage, heat energy storage, superconducting storage, self-energy storage of a power system and the like, wherein the pumped storage is the most superior high-efficiency and high-capacity energy storage technology in large-scale energy storage technologies, and is also the most mature, reliable, safe, long-life and low-loss technology. For example, hydrogen and other synthetic fuels have high energy storage cost, are flammable and explosive; the flywheel has limited energy storage capacity, higher loss, low energy density, high self-discharge rate and limited storage time; the electrochemical energy storage cost is high, part of the electrochemical energy storage has heating problems, and the service life is much shorter than that of the scheme and the pumped storage; compressed air energy storage is limited in suitable occasions, low in efficiency and high in gas compression heat generation; the capacitor has high energy storage loss, easy self-discharge, high cost and longer service life than that of pumped storage; the superconducting energy storage has low energy density and certain self-discharge; the thermal energy storage self-loss is large, and the limitation of occasions is large; the chemical energy storage efficiency is low and the cost is high; and so on.
The pumping and draining water turbine driven multi-scale gravity energy storage mode has the advantages basically the same as that of pumped storage, and is an energy storage and energy conversion mode with high comprehensive efficiency, huge (or multi-scale) energy storage capacity, flexibility and reliability, multiple operating conditions, long service life, high energy conversion speed, low comprehensive cost of the level in the service life, safety, reliability and strong competitiveness.
The pumping and drainage gravity multi-scale energy storage facility basically considers the advantages of the pumping and drainage energy storage and overcomes the defects of the pumping and drainage energy storage facility, and the pumping and drainage gravity multi-scale energy storage facility can also consider the multi-scale energy storage modes such as super-large scale, medium scale and small scale energy storage, and basically has extremely low leakage loss and even no leakage.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a multi-scale gravity energy storage facility and a method for driving energy conversion by pumping and draining water of a water turbine, which aim to solve the problems in the background art.
In order to achieve the purpose, the invention is realized by the following technical scheme: a multi-scale gravity energy storage facility for driving energy conversion by pumping and draining of a water turbine comprises rocks, gravels or ores (including but not limited to lean iron ores, lean copper ores, lean lead-zinc ores, manganese ores and other stones with high density and difficult economic utilization) or soil, soil (a sealing cover sealing structure needs to be added on a heavy-load reservoir 2 when the soil and the soil are used), a high-density composite gravity energy storage facility with heterozygous materials, and the facility comprises heavy-load or super-heavy-load materials, a solid container of the heavy materials or the super-heavy-load materials, a container shell, a plurality of closed separation structures (closed liquid plays a buffering role and comprises a wear-resistant, anti-aging and anti-damage sealing strip, a supporting plate, a spring, an overhaul convenient structure and the like) which are used for preventing the outer layer of the side surface of the heavy-load inclined collision through water or other liquids. The hydraulic pressure (hydraulic pressure) buffer device at the bottom after the heavy load falls comprises: the side frame-shaped anti-collision enlarged and height-reduced water (liquid) sealing ring of the bottom boss, a water (liquid) sealing separating frame in the bottom boss, a sealing strip in the separating frame, a sealing strip abutting plate in the separating frame, an abutting plate spring, a bottom spring lower buffer base plate and the like.
The whole multi-scale gravity energy storage facility for driving energy conversion by pumping and draining of the water turbine consists of a reservoir 2 bearing heavy load, a reversible water turbine 1, a reservoir 3, a reversible water turbine 4 and a hydraulic system 5 bearing the side surface of the reservoir 2 bearing the heavy load for equally dividing the liquid pressure.
Further, the reservoir 2 bearing heavy load is fixedly connected with the reversible water turbine 1 (or the water turbine 1, the same as the above description) after passing through the water hammer preventing device and the electric valve in sequence.
Further, the reversible water turbine 1 (or the water turbine 1, the same here) is fixedly communicated with the bottom or the lower part of the reservoir 3 through an electric valve by a pipeline;
further, the reservoir 3 is fixedly connected to the reversible water turbine 4 (or the water turbine 4, the same applies here) via a pipe via an electric valve.
Further, the reversible water turbine 4 (or the water turbine 4, the same here) is fixedly communicated with the reservoir 2 for bearing heavy load through an electric valve and a water hammer prevention device in sequence through a pipeline.
The hydraulic system is composed of a water tank, an electric valve, a filter, a bidirectional variable hydraulic pump, a one-way valve, an overflow valve, an electromagnetic directional valve, a pressure gauge (pressure indicator), an energy accumulator, a pressure relay and the like.
Further, the water tank is fixedly connected with the electric valve;
furthermore, the electric valve is fixedly connected with the filter;
further, the filter is connected with a bidirectional variable hydraulic pump;
furthermore, one branch of the bidirectional variable hydraulic pump is fixedly connected with the one-way valve, and the other branch is sequentially and fixedly connected with the overflow valve and the water tank
Furthermore, the one-way valve is fixedly connected with the electromagnetic directional valve;
furthermore, the electromagnetic directional valve is fixedly connected with a pressure gauge (a pressure indicator), an energy accumulator and two pressure relays in sequence;
furthermore, the pressure relay is fixedly connected with a side partial pressure separation unit of a reservoir 2 (a reservoir bearing heavy load) bearing lateral water (liquid) pressure.
A multi-scale gravity energy storage method for driving energy conversion by pumping and draining of a water turbine uses a device for mutual conversion of gravitational potential energy and electric energy, and comprises the following steps:
s1, a heavy-load and reservoir 2 side water supply hydraulic system 5 supplies water and pressure to the sealed water (liquid) separation space (so as to prevent the heavy-load from inclining to one side to form point-line contact and realize surface contact through side water pressure during heavy-load inclination);
s2, the heavy load of the reservoir 2 rises, so that the heavy load potential energy is increased: the reversible water turbine obtains electric energy from a power grid to start the reversible water turbine and deliver water to the bearing water storage tank 2, the water (liquid) amount at the lower part of the water storage tank 2 is increased, the water (liquid) pressure is increased, and the heavy load rises;
s3, the lifting of the heavy load can be stopped at any time, or the travel stop triggers a travel switch 281 when the heavy load reaches the maximum lift (a plurality of travel stops and travel switches are used for insurance, and the travel switches are connected in series in a starting and stopping circuit of the reversible water turbine to realize multiple insurance) so as to stop the lifting of the heavy load;
s4, the upper part of one side of the heavy load possibly abuts against the upper part of the same side of the reservoir 2 before rising, or the upper part of one side of the heavy load abuts against the upper part of the reservoir at the same side in the process of delivering water to the reservoir 2 by the reversible water turbine, meanwhile, the lower part of the same side of the heavy load is far away from the reservoir 2, the heavy load abuts against the reservoir 2, the pressure of side water (liquid) is increased to exceed the set value of a pressure relay at the position, one of the pressure relays is triggered, and the bidirectional variable hydraulic pump supplies water (liquid) to the side closed cavity of the reservoir 2 to increase the pressure to the set pressure of the pressure relay, so that the side of the reservoir 2 is uniformly stressed in the cavity vertical surface and is not collided;
s5, when the energy storage is stopped, the reversible water turbine (S) (the same as the above) is stopped and braked, then an electric valve between the water turbine and the water storage tank 2 is closed, and a plurality of water hammer preventing devices in the pipeline act to prevent fluid hydraulic impact;
and S6, when the heavy-load gravitational potential energy needs to be stored into electric energy, opening a special electric valve of the reversible water turbine, starting one or more reversible water turbines (the same as the above) to generate electricity, and discharging water (fluid liquid) into the reservoir 3 by the water turbine.
S7, the reversible water turbine drives the generator to generate electricity and supplies power to a power grid;
and S8, when the water amount (fluid) in the reservoir 3 is reduced due to evaporation or loss, opening the corresponding electric valve, and starting the water replenishing bidirectional hydraulic pump to replenish water to the reservoir 3.
The invention has the following beneficial effects:
(1) The electric energy of the power grid is used for driving one or more reversible water turbines (the same is used in the text) to pump water from the reservoir 3 to the lower part of the reservoir 2, the heavy load on the upper part of the reservoir 2 rises along the inner wall of the reservoir 2 under the pressure of the water (fluid) pumped by the reversible water turbines, and then the multi-scale electric energy (which can be super-huge, large, medium-scale and small-scale electric energy) is converted into heavy-load multi-scale potential energy (which can be super-huge, large, medium-scale and small-scale heavy-load potential energy, but safety conditions such as geological safety and the like, safety conditions and the like need to be considered).
(2) The heavy-load pressure is loaded on the fluid (water) in the reservoir 2, so that the pressure of the fluid (water) is increased, and the power generated by the increased water pressure pushes the reversible water turbine to rotate, thereby generating power.
(3) The water supply (liquid) hydraulic system 5 for supplying water (liquid) to the cavity separated between the heavy load and the vertical side wall of the reservoir 2 can supply water (liquid) containing pressurized water to the separated cavity so as to prevent the heavy load from colliding with the reservoir 2 in a dotted line shape when the water turbine pumps water to rise, so that the outer vertical wall of the heavy load and the inner vertical wall of the reservoir 2 are uniformly pressed;
(4) The cavity between the heavy-load outer vertical wall and the inner vertical wall of the reservoir 2 is divided, the gap is divided by using a sealing strip (a separation cavity is formed), and a spring and a supporting block (a supporting block) are tightly supported to prevent leakage, so that the heavy-load outer vertical wall and the inner vertical wall of the reservoir 2 are uniformly pressed;
(5) During the 2 overhauls of cistern need fall at the heavy load and contact 2 bottoms of cistern, 2 bottom bosses of cistern support the heavy load this moment promptly, need bear facility container base and 2 bottom boss pressures of cistern to the heavy load and carry out equipartition, homogenization this moment, and the scheme is: need separate into latticed or strip to 2 bottom bosss of cistern, it has the separation cavity to separate to cut apart in the interval, it deposits water (deposit liquid) in the separation cavity, make the boss plane evenly support the heavy load by separating water (liquid) in the cavity, in order to protect the bottom boss of cistern 2, 2 bottom boss outer lane ring frames of cistern are bigger than the boss under the heavy load container, and make its height be less than the separation sealing strip height in the interior partition chamber of 2 bottom bosss of cistern, in order to avoid heavy load container boss to collide with rather than, it is upwards withstood by piece (kicking block) and spring to separate the sealing strip.
(5) Because this facility height is higher, so add integrative system of parallel connection's lightning rod.
(6) An extra water replenishing bidirectional variable hydraulic pump and a ladder are added to the reservoir 3 without heavy load loading, and a lifter and the like are additionally arranged at the top of the reservoir 3.
The design ensures that the multi-scale energy storage facility can be reused for large cycle times safely, reliably, long-term, efficiently and efficiently.
Drawings
FIG. 1 is a schematic view of a multi-scale gravity energy storage facility and method for driving energy conversion by pumping and draining water of a water turbine according to the present invention;
fig. 2 is a schematic structural diagram of a heavy-duty water reservoir 2 in fig. 1 according to the present invention;
fig. 3 is an enlarged view of a portion of the lower part of the heavy-duty water reservoir 2 of fig. 2 according to the present invention;
fig. 4 is a schematic view of a inspection access door and associated structure of a heavy duty water reservoir 2 according to the present invention;
fig. 5 is a bump-proof hydraulic system of the gap separation cavity between the heavy load and the side surface of the reservoir 2.
FIG. 6 is an enlarged view of a structural member 219 for inspection and replacement of the outer wall of the heavy duty container and the sealing device in accordance with the present invention (four modifications are exemplified: 219 (A), 219 (B), 219 (C), and 219 (D), but not limited thereto) and the sealing device.
In fig. 1: 1. a water turbine; 2. a heavy-load reservoir; 3. a common reservoir; 4. a water turbine; 5. the collision prevention hydraulic system is used for separating a cavity between the heavy load and the side surface of the reservoir 2;
in fig. 2: 210. the heavy-duty impounding reservoir 2 overhauls an entrance door and a door lifting device; 211. an electrically operated valve; 212. A water hammer prevention device; 213. a heavy-duty impounding reservoir wall reinforcing structure; 214 (a plurality, e.g., 214-1 and 214-2),PerceptionHeavy-load container outer wall and sealing device maintenance and replacement structural component of heavy-load container outer vertical surface219 opposite point(the vertical bar-shaped distance position sensor is arranged from the top to the bottom of the heavy-duty container at the position where the point indicated at 214 is opposite to the part indicated at 219)And withWear-resistant and damage-resistant lining wall of heavy-duty container218 distance from the corresponding point to the position sensor mounting point(ii) a 215. Wear-resistant, wear-resistant and aging-resistant sealing strips; 216. a spring resisting block; 217. a spring; 218. wear-resistant and damage-resistant lining walls of heavy-duty containers; 219.the outer wall of the heavy-duty container is also used as a structural component for overhauling and replacing the sealing device; 220. heavy loading; 221. an inner wall of the heavy-duty container; 222. the sealing baffle wall of the heavy-duty container is also used as a reinforcing wall of the heavy-duty container; 223. a lightning arrester; 224. a hydraulic pipe; 225. an electrically operated valve; 226 a water hammer prevention device; 227. a boss at the bottom of the heavy-duty container; 228. the bottom of the heavy-load water pool is uniformly loaded with a hydraulic buffering grid assembly;
in fig. 3: 229. the bottom of the heavy-load water pool is uniformly loaded with hydraulic buffering grid sealing strips; 230. the uniform load uses the spring of the buffering cellular to support the block; 231. a spring; 232. a liquid sealing water jacket guy cable of the heavy-duty container; 233. the sealing liquid of the heavy-duty container is a foldable water jacket; 234. a heavy-duty pool base; 235. a heavy-duty pool reinforcing base; 236. a heavy duty base liquid compartment; 237. a heavy-load base sealing strip abutting block mounting plate; 238. the heavy-load base is provided with a load balancing buffer plate; 239 the heavy-load bases are all provided with bearing plates;
in fig. 4: 210-1, a lifting device of a heavy-duty pool access door; 210-2, sealing the main structural door frame by the access door; 210-4, an access door seal; 210-5, an access door;
in fig. 5: 501. a water tank; 502. an electrically operated valve; 503. a filter; 504. a reversible hydraulic pump; 505. a one-way valve; 506. an electrically operated directional valve; 507. an indicator or a hydraulic gauge; 508. an accumulator; 509. a first pressure relay (low-pressure relay); 510. a second pressure relay (high-pressure relay); 511. an overflow valve; 512.collectingHeavy-load container outer wall and sealing device maintenance and replacement structural component of heavy-load container outer vertical surfacePoint 219 opposite to the pointWear-resistant and damage-resistant lining wall of heavy-duty container218 pairs of Distance position sensing relay for distance of corresponding pointI.e., from 214 (a plurality, e.g., 214-1 and 214-2:by occurring in pairsOf vertical strips from top to bottom of heavy-duty containersIs sensed by a sensor andcan be in various formsSensors 214-1 (A) and 214-1 (B) A distance position sensing relay used for collecting and processing the distance between the 214-2 (A) and the 214-2 (B);
in FIG. 6: 219-1 is a countersunk bolt hole, 219-2 is a short pin hole, and 219-3 is a screw hole for hoisting.
Detailed Description
The technical solutions and methods in the embodiments of the present invention will be described clearly and completely in the following text with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments, and other related, alternative and phase-change embodiments which are not listed are also included in the patent right of the present invention.
Examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or have the same or similar functional elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be illustrative of the present invention and are not to be construed as limiting the present invention.
Referring to fig. 1, the present invention provides a technical solution: a multi-scale gravity energy storage facility and a method for driving energy conversion by pumping and draining of a water turbine comprise one or more drainage power generation devices 1 (conventional water turbines 1 and 4 which can be reversed or are in pairs by pumping and draining), a water pumping energy storage device heavy load reservoir system 2, a common reservoir 3, a reservoir inner wall and a side buffer hydraulic system device 5 of a load-carrying facility.
In which the pumped water energy storage device reloads the reservoir system 2, please refer to fig. 2:
pumped storage unit heavy duty reservoir system 2 comprising:
the heavy-duty impounding reservoir 2 access door and door lifting device 210 is positioned outside the front face of the heavy-duty impounding reservoir against the base; the electric valve 211 is connected with a water hammer preventing device 212; the water hammer prevention device 212 is connected to the bottom or the lower part of the heavy-duty reservoir pool through a pipeline; the reinforcing structure 213 of the wall of the heavy-duty reservoir pool is fixedly connected with the wear-resistant and damage-resistant lining wall 218 of the heavy-duty container;in thatHeavy-load container outer wall and sealing device maintenance and replacement structural component of heavy-load container outer vertical surface219 relative point(214-1 and 214-2 are directed over part 219 as shown in FIG. 2)Mounting ofFrom top to bottom of heavy-duty containersStrip-shaped inducted device (distance position inducted) Reactor) 214 (A)(a plurality, e.g., 214-1 (A) and 214-2 (A)), simultaneouslyIn thatWear-resistant and damage-resistant lining wall of heavy-duty container218 relative point(as shown in FIG. 2)Mounting sensor (distance position sensor) 214 (B)(a plurality, e.g., 214-1 (B) and 214-2 (B)); the wear-resistant, wear-resistant and aging-resistant sealing strip 215 is fastened on the spring abutting block 216; the spring resisting block 216 is tightly propped by a spring 217, and the wear-resistant, wear-resistant and aging-resistant sealing strip 215 is tightly pressed on the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container; the wear-resistant, wear-resistant and aging-resistant sealing strip 215, the spring abutting block 216 and the spring 217 are arranged on a structural component 219 for overhauling and replacing the outer wall of the heavy-duty container and the sealing device; a structural component 219 for overhauling and replacing the outer wall of the heavy-duty container and the sealing device is tightly connected with a reinforcing wall 222 of the sealing retaining wall of the heavy-duty container and the heavy-duty container; the inner wall 221 of the heavy-duty container bears the heavy-duty 220; the lightning arrester 223 is installed on the top of the heavy-duty reservoir; the hydraulic system 5 is connected with the inner wall of the reservoir and the side buffering hydraulic system device 5 of the load-carrying facility through a plurality of hydraulic pipes (such as the hydraulic pipe 224); the electric valve 225 is connected with the water hammer preventing device 226; the water hammer prevention device 226 is connected to the bottom or lower part of the heavy-duty reservoir tank through a pipeline; the boss 227 at the bottom of the heavy-duty container acts on the hydraulic buffer dividing assembly 228 for uniform loading at the bottom of the heavy-duty pool and other parts of the heavy-duty pool through hydraulic pressure (water pressure); 281. a top dead center travel switch for the heavy load and its container;
preferably, another design scheme of the common reservoir 3 is designed at the position of the upper part of the heavy-duty reservoir 2 which is empty, namely, the water at the lower part in the heavy-duty reservoir 2 is connected to the upper part of the heavy-duty reservoir 2 through a pipeline, a water hammer preventing device and a water turbine;
fig. 3 is a schematic view of a partially enlarged structure of the lower part of the heavy-duty water reservoir 2:
the hydraulic buffer grid assembly 228 for equalizing the load at the bottom of a heavy-duty pool comprises: the bottom of the heavy-duty pool is uniformly loaded with hydraulic buffer dividing sealing strips 229, buffer dividing spring abutting blocks 230, springs 231, a heavy-duty base liquid separation cavity 236, a heavy-duty base sealing strip abutting block mounting plate 237, a heavy-duty base uniform loading buffer plate 238, a heavy-duty base uniform loading bearing plate 239 and the like;
the bottom of the heavy-duty water pool is fastened on a buffering grid spring abutting block 230 for load balancing by a hydraulic buffering grid sealing strip 229;
preferably, the spring 231 compresses the buffering cellular spring abutting block 230 for load balancing;
preferably, the heavy-duty pool reinforcing base 235 is fixedly connected with the heavy-duty pool base 234;
preferably, the hydraulic buffer grid sealing strip 229 for uniform loading at the bottom of the heavy-duty water pool, the buffer grid spring abutting block 230 for uniform loading and the heavy-duty base sealing strip abutting block mounting plate 237 form a heavy-duty base liquid separation cavity 236;
preferably, the heavy-load pool reinforcing base 235, the heavy-load pool base 234, the heavy-load base sealing strip abutting block mounting plate 237, the heavy-load base uniform load buffer plate 238 and the heavy-load base uniform load bearing plate 239 are fixedly connected together;
preferably, the heavy-duty container liquid-sealing water jacket pull rope 232 is used for pulling the heavy-duty container liquid-sealing stackable water jacket 233 to slide up and down along with the heavy-duty container;
preferably, the heavy-duty container outer wall concurrently sealing device overhauls and changes the structural component 219 to pass the countersunk bolt hole 219-1 and is connected to the heavy-duty container sealing bulkhead concurrently heavy-duty container reinforcing wall 222 through the bolt;
preferably, the lower part of the heavy-duty container is connected with a water jacket horn device 286 which prevents the heavy-duty container from biting the inside of the heavy-duty reservoir 2;
a schematic view of a inspection access door and related structure 210 for a heavy-duty water reservoir 2, see fig. 4:
preferably, the access door 210-5 is placed within the access door sealing main structure doorframe 210-2 and sealed with an access door sealing strip 210-4;
preferably, the access door 210-5 is connected or hinged to the lifting device 210-1 of the heavy-duty pool access door by a hook or wire rope; the access door sealing strip 210-4 is sealed with the heavy-load reservoir in an angular or T shape;
the hydraulic system for preventing collision of the gap separation cavity between the heavy load and the side surface of the reservoir 2 refers to fig. 5:
in fig. 5, an electric valve 502 is connected with a water tank 501 through a hydraulic pipeline; the electric valve 502 is connected with the filter 503 through a hydraulic pipeline; the filter 503 is connected with the bidirectional reversible hydraulic pump 504 through a hydraulic pipeline; the bidirectional reversible hydraulic pump 504 is connected with the one-way hydraulic pump through a hydraulic pipelineValve 505 and overflow valve 511 are connected; the one-way valve 505 is connected with the electric reversing valve 506 through a hydraulic pipeline; the electric reversing valve 506 is connected with an indicator or a hydraulic gauge 507 through a hydraulic pipeline; an indicator or a hydraulic gauge 507 is connected with the accumulator 508 through a hydraulic pipeline; the hydraulic pipeline and the energy accumulator 508 are sequentially connected with a first pressure relay (low-pressure relay) 509, a distance position sensing relay 512 and a second pressure relay (high-pressure relay) 510; the second pressure relay (high-pressure relay) 510 is connected to the cavity at the side of the heavy-duty reservoir 2 through a hydraulic pipeline;in thatHeavy-load container outer wall and sealing device maintenance and replacement structural component of heavy-load container outer vertical surfaceCorrespondence at 219 Point mountingFrom top to bottom of heavy-duty containerVertical long strip distance position sensorAt the same time, in pairs with the distance position sensor,in thatWear-resistant and damage-resistant lining wall of heavy-duty container218 is provided with a distance position sensor for detecting the distance at the corresponding pointNamely, a plurality of distance position sensors (such as 214-1 (B) and 214-2 (B)) are arranged at the position indicated by 214, a plurality of distance position sensors (such as 214-1 (A) and 214-2 (A)) are arranged at the position indicated by 219, and the opposite positions of the parts are indicated by opposite positions (such as 214-1 and 214-2: paired sensors 214-1 (A) and 214-1 (B), 214-2 (A) and 214-2 (B) are arranged, and the two sides of a liquid-filled cavity which is prevented from colliding with the side vertical wall of each heavy-duty container are connected with the sensors and the sensors, and each cavity can be connected with a set of hydraulic system 5 to adjust the distance between the outer side of the heavy-duty container and the inner side of the container 2 and the liquid pressure in the cavity);
preferably, another solution to eliminate the side hydraulic system 5 that averages the hydraulic pressure: when the heavy-duty container is designed and built, the heavy-duty container is in extremely small clearance fit with the heavy-duty reservoir 2, the flatness of the fit surfaces of the heavy-duty container and the heavy-duty reservoir is extremely good, the fit planes are strict plumb surfaces, all related loads in the heavy-duty container are basically uniformly distributed, and the gravity center is basically positioned at the center of the top view of the heavy-duty container;
preferably, the position distance sensor and the distance position sensor may be a matching sensing device of a metal material such as steel and iron and an electromagnetic induction device, but the patent right is not limited to this case;
the structural component 219 for overhauling and replacing the outer wall of the heavy-duty container and the sealing device can be seen by referring to fig. 2 and 6:
preferably, 219 (A) is connected with a reinforcing wall 222 of a heavy-duty container sealing retaining wall and a heavy-duty container through a bolt via a countersunk bolt hole 219-1;
or preferably two, in 219 (B), the sealing baffle wall of the heavy-duty container and the reinforcing wall 222 of the heavy-duty container are connected through bolts passing through countersunk bolt holes 219-1 and short pin holes 219-2 (the short pins are extremely short, so that the maintenance, the disassembly and assembly and the like are convenient, and the short pins cannot be forgotten during the maintenance, the disassembly and the assembly);
or preferably three and preferably four, 219 (C), 219 (D) and 219 (a) are similar, and additionally, 219-1 bolt hole lengths in 219 (a), 219 (B), 219 (C) and 219 (D) are designed so that the bolts can be removed (not drawn to scale herein for ease of reading) before the component 219 is lifted off, so that the component 219 can be lifted off again.
Preferably, another method for installing the structural component 219 for overhauling and replacing the outer wall of the heavy-duty container and the sealing device (such as four variants: 219 (A), 219 (B), 219 (C) and 219 (D), but not limited to the four variants) and the sealing device (including 215, wear-resistant and aging-resistant sealing strips; 216, spring supporting blocks; 217, springs and the like) is to fixedly connect the structural component to the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container, and the surface of the heavy-duty container is a smooth surface with wear resistance and friction reduction;
multi-scale gravity energy storage facility and method for driving energy conversion by water pumping and draining of water turbine
A gravity energy storage device capable of storing energy in multiple scales is used, and can be made into a device for storing energy storage facilities in multiple scales such as ultra-huge amount, large amount, medium scale, small scale and the like (although safety conditions such as geological safety and the like and safety conditions need to be considered), and the method comprises the following steps:
1. briefly, the following steps are carried out:
adjusting the vertical position stage of the heavy load in the reservoir 2: when the water turbine pumps water to a certain extent, the water turbine is triggered by touch through a travel switch for regulating the position of the outer side surface of the heavy-duty container, and a hydraulic system for regulating the pressure and the distance between the outer vertical wall 219 of the heavy-duty container and the wear-resistant and damage-resistant lining wall 218 of the heavy-duty container of the reservoir 2 works to regulate the upright position of the heavy load in the reservoir 2 through the programmed work coordination of a distance position sensor, a distance position sensing relay, a pressure sensor and a pressure relay;
in the energy storage stage: the electric valve for preventing water leakage is opened, and the electric energy transmitted by the power grid drives the water turbine to pump water from the common water reservoir 3 (the term "water" is used to refer to liquid,hereinafter and above simply referred to as "water", the present invention also refers to liquids) If the water (liquid) in the heavy-load reservoir 2 is increased, the heavy load is increased, and the mechanical energy or the electric energy generated by wind energy, water energy and the like is converted into heavy-load potential energy, which is an energy storage stage;
in the energy storage stopping stage: when the electric energy for driving the water turbine stops conveying and supplying, the energy storage stops, when the upper end point of the heavy load rises to the top of the heavy-load reservoir 2, the upper end point of the heavy load triggers a travel switch 281 (a plurality of travel switches connected in series are required to be arranged for ensuring safety) arranged at the top of the heavy-load reservoir 2, after the travel switch 281 is triggered, the electric energy for driving the water turbine stops supplying, at the moment, an electric valve for preventing water leakage is closed, water leakage is further prevented, and the process is a stage of stopping energy storage;
in the energy release (potential energy release) power generation stage: when heavy load descends, the water pressure energy converted from heavy load potential energy can push the water turbine to rotate, the water turbine drives the generator rotor to rotate, the mutual rotation of the generator rotor and the stator cuts magnetic lines of force to generate electric energy, then the electric energy is transmitted to a power grid through an electric wire, and the process is an energy release power generation stage.
2. The detailed steps are as follows:
adjusting the vertical position stage of the heavy load in the reservoir 2:
s1, opening an electric valve 503;
s2, when 214 indicatesDistance position sensor 214 (A)(vertical strip on the outer wall of heavy-duty container and sealing device maintenance and replacement component 219, from top to bottom of heavy-duty container)Is arranged atWear-resistant and damage-resistant lining wall of heavy-duty containerThe distance position sensor 214 (B) installed at the corresponding point on 218 detects that the distance is too small:(see fig. 5 for hydraulic system action) then the cavity hydraulic pressure between the outer wall 219 of the heavy-duty container and the wear-resistant lining wall 218 of the heavy-duty container increases, and then the second pressure relay (high-pressure relay) 510 acts; and the distance between the vertical walls in the cavity is decreased, the distance detected by the sensor 214 (A) and the distance detected by the distance sensor 214 (B) exceeds the allowable value,thenThe distance position sensing relay 512 acts; the action of the second pressure relay (high pressure relay) 510 and the distance position sensing relay 512 is programmed to cause the directional valve 506 in fig. 5 to move to the right; if the distance position sensor detects that the distance between the outer wall 219 of the heavy-duty container and the wear-resistant lining wall 218 of the heavy-duty container is exactly equal to the value set by the program control device (when using this method, each of the fluid cavities is connected to only one pipe connected to the hydraulic system 5, in the figure, two pipes are simply connected, and one pipe is removed) or the pressure in the fluid cavity is equal to the set pressure (the fluid cavity can be connected to two pipes, as shown in fig. 1 and 2), the electromagnetic directional valve is in a middle-position stop state;
s3, when the hydraulic pump 504 is started, liquid in the liquid tank 501 (such as a water tank) is supplied to a cavity between the outer wall 219 of the heavy-duty container and the wear-resistant lining wall 218 of the heavy-duty container through the hydraulic pump 504, the one-way valve 505, the reversing valve 506 and a liquid pipe (water pipe), so that the pressure of the cavity is increased;
s4, the distance between two vertical side walls (219 and 218) of the cavity is increased, and when the liquid in the cavity is increased to a certain value, the pressure in the cavity is increased and219 and 218When the interval also increases to a certain value, the second pressure relay (high-pressure relay) 510 and the distance position sensing relay 512 act, the hydraulic pump stops supplying liquid, and the reversing valve stops at the middle position;
s5, stopping supplying liquid to the cavity when the electric valve 502 is closed;
s6, simultaneously, the accumulator 508 provides pressure maintaining service;
s7, similarly, if the cavity (hereinafter referred to as cavity) between the outer wall 219 of the heavy-duty container and the wear-resistant lining wall 218 of the heavy-duty container is increased, that is, the distance between 219 and 218 is increased, the distance position is detected by the distance position sensor 214 (B) from the sensor 214 (a) to be too large, and the distance position sensing relay 512 generates a reverse action corresponding to the detected distance being too small; and the pressure in the cavity decreases, the first pressure relay (low pressure relay) 509 operates; under the combined action of 512 and 509, the program control device acts, the reversing valve 506 moves leftwards, the redundant liquid in the cavity flows to the liquid tank 501 (such as a water tank) through the reversing valve 506 and a liquid pipe (water pipe), the liquid in the cavity is reduced, the distance between 219 and 218 is reduced to a specified value, and the pressure in the cavity is also reduced to the specified value;
in the energy storage stage:
referring to fig. 1 to 4, when in the energy storage phase:
s8, closing the detection entrance door 210 of the heavy-load water reservoir 2, and automatically sealing the door sealing strip 210-4;
s9, opening electric valves 211 and 225;
s10, driving a water turbine to rotate by a power grid power supply driving device (in the figure 1, devices 1 and 4 are water turbines, preferably, the devices 1 and 4 can be reversible water turbines which can be single-stage water turbines or two-stage and above water turbines, or the water turbines are a pumped storage water turbine and a drainage power generation water turbine which are in pair, the patent right covers various modifications, variant designs and the like), the water turbine pumps water from a common reservoir 3 and enters the lower part of a heavy-load reservoir 2 through a pipeline, and then the heavy load and a container thereof rise integrally; the wear-resistant, damage-resistant and aging-resistant sealing strip 215 slides upwards on the surface of a wear-resistant and damage-resistant lining wall 218 of the heavy-duty container, the sealing strip and the lining wall 218 form a sealed cavity, and pressure is maintained by a hydraulic system to prevent the outer wall of the heavy-duty container from colliding with the lining wall 218 (preferably, the lining wall can be made of coated steel plates or reinforced concrete, but the invention is not limited to steel plates and reinforced concrete), and as the heavy load rises under the drive of a water turbine, electric energy is converted into the potential energy of the heavy load and the container, which is an energy storage stage;
s11, in the heavy-load ascending process, a heavy-load container liquid sealing water jacket pull rope 232 pulls the heavy-load container liquid sealing water jacket 233 to ascend along the outer wall of the heavy-load container and the surface of the lining wall 218;
in the energy storage stopping stage:
s12, when power supply to the water turbine is stopped, the water turbine stops rotating, the water turbine stops delivering water to the heavy-load reservoir 2, the heavy load stops rising, and the electric valves 211 and 225 are closed, so that energy storage is stopped;
s13, if the outer wall of the heavy-duty container rises to the top end of the heavy-duty reservoir 2, namely when the outer wall reaches a top dead center, a plurality of travel switches 281 connected in series are triggered, power supply for driving the water turbine is cut off, the water turbine stops rotating, water delivery is stopped from entering the heavy-duty reservoir 2, heavy load stops rising, electric valves 211 and 225 are closed, and energy storage is stopped;
in the energy release (potential energy release) power generation stage:
s13, opening electric valves 211 and 225 (preferably, when a plurality of water turbines (such as the water turbines 1 and 4, but the invention is not limited to two water turbines and is not limited to two electric valves in the claims) are all reversible water turbines, all the electric valves are opened; preferably, when some water turbines are specially used for pumped storage and other water turbines are also specially used for drainage power generation, the electric valve between the heavy-load reservoir 2 and the water turbine for drainage power generation and the electric valve on the pipeline leading the side to the common reservoir 3 are opened to prepare for power generation);
s14, starting a water turbine to drive a power generation device, and simultaneously descending a heavy-load container and a heavy load;
in the power generation stopping stage:
s15, shutting down the water turbine when the power generation needs to be stopped, and stopping driving the power generation device by the water turbine;
s16, as shown in figure 2: when the bottom boss 227 of the heavy-load container acts on the hydraulic buffer dividing assembly 228 for load sharing at the bottom of the heavy-load water pool and other parts of the heavy-load water pool through hydraulic pressure (water pressure), the heavy-load container stops descending, the water turbine stops rotating, and at the moment, the bottom dead center of the heavy-load container is the moment, so that the power generation facility stops generating power, and the specific steps of the steps are as follows (see fig. 3): the boss 227 at the bottom of the heavy-duty container descends to contact and press a hydraulic buffer grid sealing strip 229, the hydraulic buffer grid sealing strip 229 presses a buffer grid spring abutting block 230 for load balancing, a spring 231 is compressed, liquid (water) in a liquid separation cavity 236 of the heavy-duty base is compressed, pressure is generated by the liquid in the separation cavity 236, the whole heavy-duty and heavy-duty container is borne by a hydraulic buffer grid assembly 228 (see fig. 2) at the bottom of the whole heavy-duty water pool, and the whole heavy load and load of the whole heavy-duty water storage pool 2 are loaded and transmitted to a heavy-duty base sealing strip abutting block mounting plate 237, a heavy-duty base load balancing buffer plate 238, a heavy-duty base load balancing bearing plate 239, a heavy-duty water pool reinforcing base 235 and a heavy-duty water pool base 234 through hydraulic pressure;
and (3) overhauling and checking the heavy-load reservoir 2:
s17, overhauling and checking the interior of the tank 2 of the heavy-load reservoir:
s17-1, carrying out prediction (including gravity center model) analysis on an electronic model and a reduced version entity model of the whole energy storage facility obtained by a digital twin technology: after the water in the heavy-duty reservoir 2 is drained, predicting which side the heavy load may be slightly deviated, and then performing a plurality of safe experiments and adjusting the gap of the easy-to-collide part for a plurality of times through a digital display or simulation gap detection facility, other optical facilities, a camera and the like (for example, detecting through a distance position sensor indicated by 214) to avoid possible collision phenomena (for example, preventing the collision phenomena of the inner wall of the heavy-duty reservoir 2 on the outer wall of the heavy-duty container);
s17-2, generating power through a water turbine, so that when the bottom boss 227 of the heavy-duty container descends to a bottom dead center, draining the residual liquid (water) at the lower part of the heavy-duty water reservoir 2 (attention should be paid to communicating the lower part of the heavy-duty water reservoir 2 with the atmosphere, in order to prevent residual water in the water reservoir 2 from being drained due to the atmospheric pressure, only a water pipe needs to be additionally connected to the lower part or the bottom of the heavy-duty water reservoir 2, then a waterproof hammer device is connected, an electric valve is installed at an outlet and closed during non-maintenance, the electric valve is opened during maintenance, and a water pump is additionally used for pumping the water to the common water reservoir 3. Due to the simple technology, the invention is omitted, but the technology is also necessary, the technical scheme and the modification thereof are covered in the patent right), wherein the electric valves are required to be closed successively according to requirements.
S17-3, see FIG. 4: the lifting device 210-1 of the heavy-load water pool access door lifts the access door 210-5 to an upper stop point by using a hinged hook or a steel cable, a plurality of series-connected travel switches are touched, the lifting device of the access door stops moving, the space in the heavy-load water pool 2 is opened at the moment, and then an maintainer can enter the access;
s17-4, overhauling related parts and the like of the heavy-load reservoir 2, particularly vulnerable parts such as a sealing element and the like;
s18, overhauling and checking the structural component 219 for overhauling and replacing the outer wall of the heavy-duty container and the sealing device:
s18-1, as with S17-1, firstly carrying out digital twin technology to obtain an electronic model and reduced version solid model prediction (including a gravity center model) analysis of the whole energy storage facility: after the water in the heavy-duty reservoir 2 is drained, predicting which side the heavy load may be slightly deviated, and then performing a plurality of safe experiments and adjusting the gap of the easy-to-collide part for a plurality of times through a digital display or simulation gap detection facility, other optical facilities, a camera and the like (for example, detecting through a distance position sensor indicated by 214) to avoid possible collision phenomena (for example, preventing the collision phenomena of the inner wall of the heavy-duty reservoir 2 on the outer wall of the heavy-duty container);
s18-2, similar to S17, discharging all water (liquid) in the heavy-load reservoir 2, enabling a boss 227 at the bottom of the heavy-load container to descend to a bottom dead center, enabling the bottom of the whole heavy-load reservoir to bear the whole heavy-load container and the whole heavy-load container by a hydraulic buffer grid assembly 228 (shown in figure 2), and transmitting the whole heavy-load pressure to a reinforcing base 235 of the heavy-load reservoir and a base 234 of the heavy-load reservoir;
s18-3, dismantling the outer wall of the heavy-duty container and repairing and replacing the sealing device by bolts in bolt holes 219-1 in the structural component 219 and short pins in short pin holes 219-2 (it is kept in mind that if the short pins exist, the component 219 needs to move along the axis of the pin hole slightly longer than the length of the short pins and then the component 219 needs to be hoisted); dismantling the outer wall of the heavy-duty container and repairing and replacing the sealing device with a check washer and a leakage-proof washer in a bolt hole 219-1 in a structural component 219;
s18-4, installing a lifting bolt hanging ring in a screw hole 219-3 in the outer wall of the heavy-duty container and sealing device overhauling and replacing structural component 219;
s18-5, hoisting a structural component 219 for overhauling and replacing the outer wall of the heavy-duty container and the sealing device;
s18-6, inspecting, overhauling the outer wall of the heavy-duty container and repairing and replacing the structural component 219 and the heavy-duty reservoir 2 and other related parts, particularly vulnerable parts such as a sealing part;
s19, overhauling of anti-collision hydraulic system of gap separation cavity between heavy load and side surface of reservoir 2
S19-1, carrying out prediction (including a gravity center model) analysis on an electronic model and a reduced version solid model of the whole energy storage facility obtained by a digital twin technology: after the water in the heavy-duty reservoir 2 is drained, predicting which side the heavy load may be slightly deviated, and then performing a plurality of safe experiments and adjusting the gap of the easy-to-collide part for a plurality of times through a digital display or simulation gap detection facility, other optical facilities, a camera and the like (for example, detecting through a distance position sensor indicated by 214) to avoid possible collision phenomena (for example, preventing the collision phenomena of the inner wall of the heavy-duty reservoir 2 on the outer wall of the heavy-duty container);
s19-2, similar to S17, discharging all water (liquid) in the heavy-load reservoir 2, enabling a boss 227 at the bottom of the heavy-load container to descend to a bottom dead center, enabling the bottom of the whole heavy-load reservoir to bear the whole heavy-load container and the whole heavy-load container by a hydraulic buffer grid assembly 228 (shown in figure 2), and transmitting the whole heavy-load pressure to a reinforcing base 235 of the heavy-load reservoir and a base 234 of the heavy-load reservoir;
s19-3, inspecting and overhauling the collision prevention hydraulic system of the gap separation cavity between the heavy load and the side surface of the reservoir 2.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. A multi-scale gravity energy storage method for water (liquid) turbine pumping and drainage (liquid) driven energy conversion, which uses the multi-scale energy storage device as claimed in any one of the following claims, and is characterized in that:
(1) The basic principle is that after the water hammer effect is prevented by taking a water turbine, electric equipment and power generation equipment as media of mechanical and electrical equipment and a water hammer prevention device, the heavy-load potential energy and the electric energy in the heavy-load reservoir 2 are mutually converted;
(2) The invention discloses a hydraulic system 5 on the side surface of a reservoir 2 for bearing heavy load and evenly dividing the hydraulic pressure, which consists of a system principle adopting hydraulic partial pressure and prevents a heavy load container from colliding with the inner wall of the reservoir 2 for bearing heavy load;
(3) And as shown in figure 2: when the pressure of the bosses 227 (one boss or a plurality of arrayed bosses) at the bottom of the heavy-duty container is divided, the hydraulic buffering grid assembly 228 for uniform loading at the bottom of the heavy-duty pool and other parts of the heavy-duty pool are divided by hydraulic pressure (water pressure);
(4) Hydraulic fluid is sealed by a foldable water jacket 233 through the sealing liquid of a heavy-duty container in the heavy-duty reservoir 2; a liquid-sealing water jacket pull rope 232 of the heavy-duty container pulls the water jacket 233 to slide along the wear-resistant and damage-resistant lining wall 218 of the heavy-duty container; the water jacket 233 is fastened at the lower part of the heavy-duty container of the heavy-duty water reservoir 2, the water jacket 233 is fastened at the bottom of the heavy-duty water reservoir 2, and the fastening members fasten the respective separate parts of the water jacket 233 (i.e., the water jacket 233 is separately manufactured and assembled) to constitute a complete water jacket; preferably, the lower part of the heavy-duty container is connected with a water jacket horn device 286 which prevents the heavy-duty container from biting the inside of the heavy-duty reservoir 2;
(5) The inspection entrance door and the related structure 210 of the heavy-load reservoir 2 are specially arranged for convenient maintenance, the door can be opened and closed in an up-and-down hoisting mode or in a hinge-hinged rotary mode, and is sealed by an angular or T-shaped sealing strip to prevent leakage;
(6) The heavy load is loaded through the heavy load container, and the heavy load container transmits the pressure generated by the heavy load to each part of the lower part of the heavy load reservoir 2 through the water jacket at the lower part of the heavy load reservoir 2 so as to reduce the local pressure and prevent the damage.
(7) The hydraulic system 5 (hereinafter referred to as the hydraulic system 5) on the side for equally dividing the hydraulic pressure of the heavy-duty reservoir 2 is connected to the gap cavities between the outer wall of the heavy-duty container and the side wall (hereinafter referred to as the side wall) of the heavy-duty reservoir 2 through pipes (preferably, each gap cavity should be connected with only one hydraulic system 5, in this case, fig. 1 and 2 illustrate a device which saves cost and adopts a program control device, and adopts a scheme of connecting two pipes), when the distance position sensor senses that the distance between the side walls exceeds the minimum set value and the pressure in the cavity is greater than the set value of the high-pressure relay 510, the hydraulic system 5 conveys the liquid (such as water) to the cavity between the side walls until the distance set value of the position distance sensor is reached; when the distance position sensor senses that the distance position exceeds the maximum set value and the pressure sensor senses that the pressure in the cavity is reduced to the set value, the cavity returns water to a water tank of the hydraulic system 5 until the distance position sensor senses that the distance between the side walls is reduced to the set value; if the distance position sensor senses that the position exceeds the maximum allowable set value, the pressure sensor senses that the pressure is just equal to the atmospheric pressure, and the sensor senses that no liquid (such as water) is infiltrated (such as the sensor senses magnetic resistance change, the magnetic resistance of the liquid (water) is not changed, but the magnetic resistance of air is changed), the corresponding hydraulic system is stopped at the moment, and the electromagnetic directional valve 506 is stopped at a middle position, so that when the outer wall of the heavy-duty container does not form a cavity with the side wall of the heavy-duty reservoir 2 and the wear-resistant and aging-resistant sealing strip 215, namely the heavy-duty container is still arranged at the lower part of the heavy-duty reservoir 2, a pipeline of the hydraulic system 5 connected to the upper part of the heavy-duty reservoir 2 cannot output liquid (water) outwards or feed liquid (water) into a water tank in the hydraulic system 5, and the hydraulic system is stopped.
(8) Preferably, another design scheme of the common reservoir 3 is designed at the position of the upper part of the heavy-duty reservoir 2 which is empty, namely, the water at the lower part in the heavy-duty reservoir 2 is connected to the part of the upper part of the heavy-duty reservoir 2 which is empty through a pipeline, a water hammer preventing device and a water turbine;
(9) Another solution, preferably without the side hydraulic system 5 that averages the hydraulic pressure: when the heavy-duty container is designed and built, the heavy-duty container is in extremely small clearance fit with the heavy-duty reservoir 2, the flatness of the fit surfaces of the heavy-duty container and the heavy-duty reservoir is extremely good, the fit planes are strict plumb surfaces, all related loads in the heavy-duty container are basically uniformly distributed, and the gravity center is basically positioned at the center of the top view of the heavy-duty container;
(10) Preferably, another method for installing the structural component 219 for overhauling and replacing the outer wall of the heavy-duty container and the sealing device (four variants are shown as 219 (A), 219 (B), 219 (C) and 219 (D), but not limited to the four variants) and the sealing device (including 215, wear-resistant and aging-resistant sealing strips; 216, spring supporting blocks; 217, springs and the like) is to fixedly connect the structural component to the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container, and the surface of the heavy-duty container is a smooth surface with wear resistance and friction reduction;
the multi-scale gravity energy storage facility for energy conversion driven by pumping and draining water (liquid) of the water (liquid) turbine
The invention is technically characterized in that:
(1) The whole water turbine pumping and draining driving energy conversion multi-scale gravity energy storage facility consists of a reservoir 2 bearing heavy load, a water turbine 1, a water turbine 4 (a reversible water turbine or a common water turbine, if the common water turbine is adopted, one part of the water turbine is used for pumping and storing water, and the other part of the water turbine is used for draining and generating electricity, or the water turbine can be driven by only using the reversible water turbine, the water turbine can be a single-stage water turbine or two-stage or more water turbines), a reservoir 3 and a hydraulic system 5 bearing the side surface of the reservoir 2 bearing the heavy load for sharing the liquid pressure (or without the device, or by other similar devices).
(2) The reservoir 2 bearing heavy load is fixedly connected with the reversible water turbine 1 (or a non-reversible water turbine consisting of the water pumping and energy storage water turbine and the water drainage and power generation water turbine, which are the same in the text) through a water hammer preventing device.
(3) And further, the reversible water turbine 4 (or the common pumped storage water turbine 4 and a device additionally provided with a water drainage and power generation water turbine, which are the same as the above devices) is fixedly communicated with the reservoir 2 for bearing heavy load through an electric valve and a water hammer prevention device through a pipeline. One end of the water turbine is connected with a heavy-load water storage tank 2, and the other end of the water turbine is connected with a common water storage tank 3;
(4) The heavy load is carried by the heavy-load reservoir 2 through the hydraulic pressure of liquid, and the water hammer effect which possibly occurs in the heavy-load reservoir 2 is eliminated through a water hammer preventing device;
(5) The lower part of the heavy-duty reservoir 2 is composed of a sealing water jacket, which mainly comprises a heavy-duty container liquid-sealing water jacket guy cable 232, a heavy-duty container liquid-sealing foldable water jacket 233, a fastener and the like;
(6) The bottom of the heavy-duty reservoir 2 is provided with a hydraulic buffer grid 228 (which forms a heavy-duty base liquid separation cavity 236) for equal loading at the bottom of the heavy-duty reservoir, and the hydraulic buffer grid mainly comprises: the bottom of the heavy-load water pool is uniformly loaded with a hydraulic buffer dividing sealing strip 229, a uniform loading buffer dividing spring abutting block 230, a spring 231, a heavy-load base sealing strip abutting block mounting plate 237 and the like;
(7) The lower part of the hydraulic buffer grid 228 for load sharing at the bottom of the heavy-load pool is composed of one or more structures of a heavy-load pool base 234, a heavy-load pool reinforcing base 235, a heavy-load base load sharing buffer plate 238 and a heavy-load base load sharing bearing plate 239;
(8) The hydraulic system 5 is composed of a water tank 501, an electric valve 502, a filter 503, a hydraulic pump 504 (such as a two-way variable hydraulic pump), a check valve 505, an overflow valve 511, an electromagnetic directional valve 506, a pressure gauge (pressure indicator) 507, an accumulator 508, pressure relays 509 and 510, a distance position sensing relay 512 (such as an electromagnetic induction type sensor), and the like (or is composed of a plurality of similar components and parts).
The water tank, the electric valve, the filter and the bidirectional variable hydraulic pump are connected;
furthermore, one branch of the bidirectional variable hydraulic pump is fixedly connected with the one-way valve, and the other branch is sequentially and fixedly connected with the overflow valve and the water tank
Furthermore, the electromagnetic directional valve is fixedly connected with the electromagnetic directional valve, a pressure gauge (a pressure indicator), an energy accumulator and two pressure relays;
furthermore, the pressure relay is fixedly connected with a side partial pressure separation unit of a reservoir 2 (a reservoir bearing heavy load) bearing lateral water (liquid) pressure.
(9) Inspection access door and related structure 210 of heavy duty water reservoir 2:
(9.1) in the first scheme, the access door 210-5 is placed in a door frame 210-2 of a main sealing structure of the access door and is sealed by using an access door sealing strip 210-4; the access door 210-5 is connected or hinged with the lifting device 210-1 of the heavy-duty pool access door by a hook or a steel cable; the access door sealing strip 210-4 is sealed with the heavy-load reservoir in an angular or T shape;
(9.2) in the second scheme, the access door is connected with the heavy-load reservoir 2 through a hinge, and is sealed with the heavy-load reservoir through an angle or T-shaped access door sealing strip 210-4.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211075262.5A CN115478973A (en) | 2022-09-05 | 2022-09-05 | Multi-scale gravity energy storage facility and method for driving energy conversion by pumping and draining water (liquid) of water (liquid) turbine |
| CN202280056147.5A CN117916461A (en) | 2022-09-05 | 2023-10-22 | Multi-scale gravity energy storage facility and method for water (liquid) turbine water pumping and draining (liquid) driving energy conversion |
| PCT/CN2023/123164 WO2024051859A1 (en) | 2022-09-05 | 2023-10-22 | Multi-scale gravity energy storage facility and method for water (liquid) turbine water (liquid) pumping and drainage driving energy conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211075262.5A CN115478973A (en) | 2022-09-05 | 2022-09-05 | Multi-scale gravity energy storage facility and method for driving energy conversion by pumping and draining water (liquid) of water (liquid) turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115478973A true CN115478973A (en) | 2022-12-16 |
Family
ID=84423391
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211075262.5A Pending CN115478973A (en) | 2022-09-05 | 2022-09-05 | Multi-scale gravity energy storage facility and method for driving energy conversion by pumping and draining water (liquid) of water (liquid) turbine |
| CN202280056147.5A Pending CN117916461A (en) | 2022-09-05 | 2023-10-22 | Multi-scale gravity energy storage facility and method for water (liquid) turbine water pumping and draining (liquid) driving energy conversion |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202280056147.5A Pending CN117916461A (en) | 2022-09-05 | 2023-10-22 | Multi-scale gravity energy storage facility and method for water (liquid) turbine water pumping and draining (liquid) driving energy conversion |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN115478973A (en) |
| WO (1) | WO2024051859A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024051859A1 (en) * | 2022-09-05 | 2024-03-14 | 陈兴茂 | Multi-scale gravity energy storage facility and method for water (liquid) turbine water (liquid) pumping and drainage driving energy conversion |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118549287A (en) * | 2024-07-26 | 2024-08-27 | 中国长江电力股份有限公司 | Cavitation erosion simulation test device for top cover of mixed-flow water turbine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000352371A (en) * | 1999-06-08 | 2000-12-19 | Mitsubishi Heavy Ind Ltd | Compressed air storage type combined power generation system |
| US20050279085A1 (en) * | 2004-06-18 | 2005-12-22 | Moore George V | Energy conversion system |
| CN103114564B (en) * | 2013-02-01 | 2015-08-12 | 华北电力大学 | Based on storage station and the energy storing and electricity generating method of compressed-air energy storage |
| CN203594555U (en) * | 2013-12-19 | 2014-05-14 | 梁文青 | High-pressure hydraulic energy gravity power generation system |
| CN105569910B (en) * | 2016-03-01 | 2018-08-28 | 华北电力大学 | Pumped storage system based on weight supercharging technology |
| CN115478973A (en) * | 2022-09-05 | 2022-12-16 | 陈兴茂 | Multi-scale gravity energy storage facility and method for driving energy conversion by pumping and draining water (liquid) of water (liquid) turbine |
-
2022
- 2022-09-05 CN CN202211075262.5A patent/CN115478973A/en active Pending
-
2023
- 2023-10-22 WO PCT/CN2023/123164 patent/WO2024051859A1/en active Search and Examination
- 2023-10-22 CN CN202280056147.5A patent/CN117916461A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024051859A1 (en) * | 2022-09-05 | 2024-03-14 | 陈兴茂 | Multi-scale gravity energy storage facility and method for water (liquid) turbine water (liquid) pumping and drainage driving energy conversion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117916461A (en) | 2024-04-19 |
| WO2024051859A1 (en) | 2024-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115478973A (en) | Multi-scale gravity energy storage facility and method for driving energy conversion by pumping and draining water (liquid) of water (liquid) turbine | |
| EP1409876B1 (en) | Potential energy storage system | |
| EP4143946A1 (en) | Energy storage system | |
| US11355997B2 (en) | Large scale flywheel for energy storage | |
| CN109707577A (en) | A kind of system and method for realizing discarded pit shaft weight energy storage using pulley blocks | |
| CN204984712U (en) | Tidal power generation system | |
| GB2553662A (en) | Twin, double piston water / fluid, pump | |
| CN109185082A (en) | Gravity force energy storage system | |
| CN209458068U (en) | A kind of system for realizing discarded pit shaft weight energy storage using pulley blocks | |
| IL291894A (en) | Combined gravitational - hydraulic electric energy storage system | |
| CN2173314Y (en) | Miniature loss energy source circulation hydraulic generator | |
| CN117536761A (en) | Multi-scale gravity energy storage facility and method for water (liquid) turbine water pumping and draining (liquid) driving energy conversion | |
| KR102135580B1 (en) | Lift-type pumping unit | |
| RU2796715C1 (en) | Gravitational storage of electric energy | |
| CN216121813U (en) | Gravity steel ball displacement type automatic energy storage power station | |
| BG113662A (en) | Hydraulic gravity system for energy storage and delivery | |
| CN218294056U (en) | Oil filter for calendering lifting cylinder | |
| WO2023239264A1 (en) | Gravitational energy storage system | |
| WO2024127382A1 (en) | Gravity energy storage using hydraulic power | |
| CN113675865A (en) | Gravity steel ball displacement type automatic energy storage power station and working method | |
| RO137118A0 (en) | Process and device for mechanical energy storage | |
| CN117767581A (en) | Underwater shaft type gravity energy storage system and construction method | |
| Kropotin | Gravity Energy Storage Systems with Weight Lifting | |
| CN117318317A (en) | New energy large-scale water-gas coupling high-quality transduction storage power station | |
| CN118369832A (en) | Method for supplying energy near a point of consumption using renewable energy sources, including energy storage methods, and use thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |