CN115478973A - A multi-scale gravity energy storage facility and method for water (liquid) turbine pumping and drainage (liquid) driven energy conversion - Google Patents

Abstract

The invention discloses a multi-scale gravity energy storage facility and method for water (liquid) turbine pumping and drainage (liquid) driven energy conversion, and relates to the technical field of multi-scale energy storage. The facility includes a pumped energy storage device: a heavy-duty storage tank system 2 (that is, a heavy-duty storage tank, the same below), one or more hydraulic turbine power generation devices (such as 1, 4), the storage tank and the side of the load-bearing facility The pressure buffer structure, the heavy-duty buffer device at the bottom of the reservoir, the side pressure buffer hydraulic system device 5 on the inner wall of the heavy-duty reservoir and the load-bearing facility, and the ordinary reservoir 3 (it can also be omitted, and its water storage function is set in the heavy-duty Carry the upper part of reservoir 2) etc. In the present invention, water is pumped from the fully sealed water jacket of the heavy-duty storage tank through a water turbine (reversible, or a water turbine that is separately separated from pumped storage and drainage power generation) through a water-proof hammer device, an electric valve, etc., and the heavy-duty is driven by water pressure. Upward energy storage; then, the heavy load is used to drive the hydraulic turbine to drive the generator to generate electricity, and the cycle repeats.

Description

A water (liquid) turbine pumping and discharging (liquid) driven multiscale gravity for energy conversion Energy Storage Facilities and Methods

technical field

The invention relates to the field of multi-scale energy storage, in particular to a multi-scale gravity energy storage facility and method for energy conversion driven by water turbine pumping and drainage.

Background technique

Energy storage devices/facilities are devices/facilities that store energy. Energy storage devices/facilities usually include pumped hydro storage, flywheel energy storage, compressed air energy storage, hydrogen and other synthetic fuel energy storage, electrochemical energy storage, capacitor storage Energy storage, thermal energy storage, superconducting energy storage, power system self-storage, etc. Among them, pumped hydro storage is the most superior, high-efficiency, and large-capacity energy storage technology among large-scale energy storage technologies, and it is also the most mature, reliable, safe, and long-term energy storage technology. A technology with long life and low loss. For example, hydrogen and other synthetic fuels have high energy storage costs, are flammable, and are explosive; flywheel energy storage capacity is limited, loss is high, energy density is not high enough, self-discharge rate is high, and storage time is limited; electrochemical energy storage is expensive and partially exists Heating problem, much shorter service life than this patented solution and pumped storage; compressed air energy storage is suitable for limited occasions, low efficiency, and more heat generated by gas compression; capacitor energy storage loss is high, easy to self-discharge, high cost, and life is not as good as pumped storage The same long-lived patented solution; superconducting energy storage has low energy density and has a certain self-discharge; thermal energy storage has large self-loss and limited places; chemical energy storage has low efficiency and high cost; and so on.

The multi-scale gravity energy storage method driven by the pumped drainage turbine of this patent has basically the same advantages as the pumped storage energy mentioned above, but also has high comprehensive efficiency, huge energy storage (also multi-scale), flexible and reliable maneuverability, and multiple operating conditions , long life, fast conversion of energy, low average comprehensive cost of electricity during the life span, safe, reliable, and highly competitive energy storage and energy conversion methods, and the pumped storage method is very difficult to select a site, often in remote areas In the countryside, there are disadvantages such as construction costs, demolition and resettlement, transportation, wiring, anti-leakage, long construction period, and large losses, as well as the difficulty of construction due to rural development, and geological conditions must also be considered for pumped storage, so this patent inherits In addition to almost all the advantages of pumped storage, it can also be built in non-wilderness and suburbs where geological conditions permit, which reduces the difficulty of construction and construction, and also allows flexible site selection, which means that it basically overcomes most of the shortcomings of pumped storage. Inadequacies.

While other various energy storage methods have their own advantages, but basically fail to achieve the comprehensive performance, comprehensive benefits, and comprehensive competitiveness of pumped storage. However, this multi-scale gravity energy storage facility basically takes into account the advantages of pumped storage In addition to its shortcomings, the pumping and drainage gravity multi-scale energy storage setting can also take into account multi-scale energy storage methods such as ultra-large-scale, large-scale, medium-scale, and small-scale energy storage, and can basically achieve extremely low leakage losses, or even no leakage .

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a multi-scale gravity energy storage facility and method for energy conversion driven by water turbine pumping and drainage, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: a multi-scale gravity energy storage facility for water turbine pumping and drainage driving energy conversion, including rocks, sandstones or ores (including but not limited to those with higher density that are difficult to use economically) iron ore, copper ore, lead-zinc ore, manganese ore, etc.) or soil, soil (when soil and soil are used, the top of the heavy-duty reservoir 2 needs to be covered and sealed), and high-density The gravitational energy storage facilities of composite and hybrid materials, said facilities include heavy-duty or super-heavy-duty materials, solid containers of heavy-duty or super-heavy materials, container shells, container side outer layers that can prevent heavy-duty tilting and bumping through water or other Multiple closed partition structures with liquid action (the closed liquid acts as a buffer, including wear-resistant, dense, aging-resistant and damage-resistant seals, back plates, springs, convenient maintenance structures, etc.), load-bearing bottom plate, load-bearing bottom plate bosses, etc. The water pressure (hydraulic) buffer device at the bottom after the heavy load is dropped is composed of: the bottom boss has a lateral frame-shaped anti-collision enlarged and lowered water sealing (sealing liquid) ring, and the bottom boss inner sealing water (sealing liquid) Partition frame, sealing strip inside partition frame, backing plate of sealing strip inside partition frame, backing plate spring, cushion plate under bottom spring, etc.

The multi-scale gravitational energy storage facility for energy conversion driven by pumping and drainage of the entire hydraulic turbine consists of a heavy-duty reservoir 2, a reversible hydraulic turbine 1, a reservoir 3, a reversible hydraulic turbine 4, and a heavy-loaded reservoir 2. The hydraulic system consists of 5 pressure sides.

Further, the heavy-loaded storage tank 2 is fixedly connected to the reversible water turbine 1 (or water turbine 1, which are the same herein) through the anti-hammer device and the electric valve in sequence.

Further, the reversible water turbine 1 (or water turbine 1, which is the same herein) is fixedly communicated with the bottom or lower part of the reservoir 3 through a pipeline through an electric valve;

Further, the reservoir 3 is fixedly communicated with the reversible water turbine 4 (or the water turbine 4, all of which are the same herein) through a pipeline through an electric valve.

Further, the reversible water turbine 4 (or water turbine 4, which is the same herein) is in fixed communication with the heavy-loaded water storage tank 2 through pipelines through electric valves and anti-hammer devices in turn.

The hydraulic system consists of water tank, electric valve, filter, two-way variable hydraulic pump, check valve, overflow valve, electromagnetic reversing valve, pressure gauge (pressure indicator), accumulator, pressure relay, etc.

Further, the water tank is fixedly connected with the electric valve;

Further, the electric valve is fixedly connected with the filter;

Further, the filter is connected with a two-way variable hydraulic pump;

Furthermore, one branch of the two-way variable hydraulic pump is fixedly connected to the one-way valve, and the other branch is fixedly connected to the overflow valve and the water tank in turn.

Further, the one-way valve is fixedly connected with the electromagnetic reversing valve;

Further, the electromagnetic reversing valve is fixedly connected with the pressure gauge (pressure indicator), the accumulator and two pressure relays in sequence;

Further, it is fixedly connected to the side pressure dividing separation unit of the reservoir 2 (reservoir bearing heavy load) that bears lateral water (hydraulic) pressure via a pressure switch.

A multi-scale gravitational energy storage method for water turbine pumping and drainage driving energy conversion, using a device for mutual conversion of gravitational potential energy and electric energy, the steps are as follows:

S1. Heavy load and side water supply hydraulic system 5 of reservoir 2 supply water and pressure to the sealed water (liquid) separation space (to prevent the heavy load from tilting to one side to become point-line contact, and to realize the heavy load tilting through the side water pressure surface contact);

S2. The heavy load of the storage tank 2 rises, so that the heavy load potential energy increases: the reversible water turbine obtains electric energy from the power grid to start the reversible water turbine and deliver water to the load-bearing storage tank 2, and the water (liquid) volume in the lower part of the storage tank 2 increases. The water (liquid) pressure increases, and the heavy load rises;

S3, the heavy load can stop at any time on the way up, or the travel stopper touches the travel switch 281 when the heavy load reaches the maximum lift (multiple travel stoppers and travel switches are used for insurance, and the travel switch is connected in series in the reversible hydraulic turbine opening and closing circuit to realize Multiple insurances) to realize heavy load stop uplink;

S4. The upper part of a certain side of the heavy load may have leaned against the upper part of the same side of the reservoir 2 before rising, or the upper part of a certain side of the heavy load leaned against the upper part of the same side of the reservoir during the process of water delivery from the reversible turbine to the reservoir 2 At the same time, the lower part on the same side of the heavy load is far away from the reservoir 2, and the heavy load is close to the reservoir 2, and the water (liquid) pressure on the side increases beyond the set value of the pressure relay, and one of the pressure relays is triggered. The two-way variable hydraulic pump supplies water (liquid) to the closed cavity on the front side of the reservoir 2 to increase the pressure to the pressure set by the pressure switch, so that the side of the reservoir 2 is evenly stressed in the cavity elevation , do not bump;

S5. When the energy storage stops, the reversible water turbine (one or more, all the same in this paper) stops and brakes, and then closes the electric valve between the water turbine and the storage tank 2, and multiple anti-hammer devices in the pipeline work To prevent fluid hydraulic impact;

S6. When the gravitational potential energy of the heavy load after energy storage is required to be converted into electric energy, open the special electric valve of the reversible water turbine, start the reversible water turbine (one or more, the same for this article) to generate electricity, and the water turbine discharges water (fluid liquid) into the reservoir 3.

S7. The reversible water turbine drives the generator to generate electricity, and at the same time supplies power to the grid;

S8. When the amount of water (fluid) in the reservoir 3 is evaporated or lost or reduced, the corresponding electric valve is opened, and the bidirectional hydraulic pump for replenishing water is started to supplement water to the reservoir 3 .

The present invention has the following beneficial effects:

(1) Drive reversible water turbines (one or more, all the same herein) by using the electric energy of the power grid to pump water from the reservoir 3 into the lower part of the reservoir 2, and the heavy load on the upper part of the reservoir 2 is pumped by the reversible turbines Water (fluid) rises along the inner wall of the reservoir 2 under the pressure, and then multi-scale electric energy (can be ultra-massive, huge, large, medium-scale, small-scale electric energy) is converted into heavy-duty multi-scale potential energy (can be super Massive, huge, large, medium-scale, and small-scale heavy-duty potential energy, but safety conditions such as geological safety and safety conditions need to be considered).

(2) By utilizing the heavy load pressure to load the fluid (water) in the reservoir 2, the pressure of the fluid (water) is increased, and the surge of water pressure pushes the power generated therein to rotate the reversible water turbine, thereby generate electricity.

(3) The water supply (liquid) hydraulic system 5 for supplying water (liquid) to the cavity separated between the heavy load and the 2 facade side walls of the reservoir can provide pressurized water (liquid) for this separated cavity to prevent heavy load When the load is pumped into the water turbine and rises, the heavy load collides with the reservoir 2 in a point-line shape, so that the pressure on the outer vertical wall of the heavy load and the inner vertical wall of the reservoir 2 is evenly distributed and uniform;

(4) Separate the cavity between the heavy-duty outer vertical wall and the inner vertical wall of the reservoir 2, and use a sealing strip to separate the gap (forming a separation cavity), and use a spring and a block (top block) to tighten it to prevent leakage , so as to help the heavy-duty outer vertical wall and the inner vertical wall of the reservoir 2 to be uniformly and evenly compressed;

(5) During the maintenance of the reservoir 2, it is necessary to touch the bottom of the reservoir 2 when the heavy load falls, that is, at this time, the boss at the bottom of the reservoir 2 supports the heavy load. 2. The pressure on the bosses at the bottom is evenly distributed and homogenized. The plan is: the bosses at the bottom of the reservoir 2 need to be separated into grids or strips, and there are partitioned cavities in the partitions, and water (storage) in the partitioned cavities , the water (liquid) in the separation cavity makes the boss plane evenly support the heavy load, so as to protect the bottom boss of the reservoir 2, the ring frame of the outer ring of the boss at the bottom of the reservoir 2 is larger than the lower boss of the heavy-duty container, And make its height lower than the height of the separation sealing strip in the separation cavity in the boss at the bottom of the reservoir 2, so as to avoid bumping against the lower boss of the heavy-duty container, and the separation sealing strip is upwardly supported by the block (top block) and the spring .

(5) Due to the high height of the facility, an integrated system of lightning rods connected in parallel is added.

(6) Add additional water replenishment bidirectional variable hydraulic pump and ladder to the storage tank 3 without heavy load, and add a lift on the top of the storage tank 3, etc.

The above design ensures that the multi-scale energy storage facility can be reused for a large number of cycles in a safe, reliable, long-term, high-efficiency, and high-benefit manner.

Description of drawings

1 is a schematic diagram of a multi-scale gravity energy storage facility and method for energy conversion driven by water turbine pumping and drainage according to the present invention;

Fig. 2 is a schematic structural view of the heavy-duty reservoir 2 in Fig. 1 of the present invention;

Fig. 3 is a partial enlarged structural schematic diagram of the lower part of the heavy-duty reservoir 2 in Fig. 2 of the present invention;

Fig. 4 is a schematic diagram of the detection entrance door and related structures of the heavy-duty reservoir 2 in the present invention;

Fig. 5 is the anti-collision hydraulic system of the cavity separated by the space between the heavy load and the side of the reservoir 2 in the present invention.

Fig. 6 is the structural part 219 for maintenance and replacement of the outer wall of the heavy-duty container and the sealing device in the present invention (four variants are cited: 219 (A), 219 (B), 219 (C) and 219 (D), but not limited to these four) and the enlarged view of the sealing device.

In Fig. 1: 1, water turbine; 2, heavy-duty storage tank; 3, common storage tank; 4, water turbine; 5, anti-collision hydraulic system of the space separating cavity between heavy-duty and storage tank 2 sides;

Among Fig. 2: 210, heavy-duty storage tank 2 overhaul entrance door and door lifting device; 211, electric valve; 212, anti-hammer device; 213, heavy-duty storage tank wall reinforcement structure; -1 and 214-2 ), the heavy-duty container outer wall of the heavy-duty container exterior facade and the sealing device maintenance and replacement structural component 219 are opposite to the point (214 indication points are installed directly opposite to the 219 parts from the heavy-duty The vertical strip-shaped distance between the top and the bottom of the container is measured by the sensor) and the distance position sensor installation point of the distance from the corresponding point of the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container; 215, the wear-resistant, wear-resistant and aging-resistant sealing strip; 216. Spring block; 217. Spring; 218. Wear-resistant and wear-resistant lining wall of heavy-duty container; 219. Outer wall of heavy-duty container and structural component for maintenance and replacement of sealing device; 220. Heavy-duty; 221. Inner wall of heavy-duty container; 222 223, lightning protection device; 224, hydraulic pipe; 225, electric valve; 226 anti-hammer device; 227, boss at the bottom of heavy-duty container; Carrying hydraulic buffer grid components;

Among Fig. 3: 229, the bottom of the heavy-duty pool is equipped with a hydraulic buffer grid seal strip; 230, the buffer grid spring is used to block the load; 231, the spring; 232, the heavy-duty container sealing liquid water sleeve cable; 233, Superimposed water jacket for sealing liquid of heavy-duty container; 234. Base of heavy-duty pool; 235. Reinforced base of heavy-duty pool; 236. Liquid separation chamber of heavy-duty base; , The heavy-duty base is evenly loaded with a buffer plate; the 239 heavy-duty base is evenly loaded with a pressure plate;

In Fig. 4: 210-1, the lifting device of the maintenance entrance door of the heavy-duty pool; 210-2, the main structure door frame of the maintenance entrance door; 210-4, the sealing strip of the maintenance entrance door; 210-5, the maintenance entrance door;

Among Fig. 5: 501, water tank; 502, electric valve; 503, filter; 504, two-way reversible hydraulic pump; 505, check valve; 506, electric reversing valve; 507, indicator or hydraulic gauge; 509, the first pressure relay (low-voltage pressure relay); 510, the second pressure relay (high-pressure pressure relay); 511, overflow valve; 512, the outer wall of the heavy-duty container and the sealing device for collecting the outer facade of the heavy-duty container The distance position sensing relay of the distance between the point facing the structural part 219 for maintenance and replacement and the corresponding point of the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container, that is, from 214 (multiple, such as 214-1 and 214-2: through the A pair of sensors 214-1(A) and 214-1 (B), 214-2(A) and The function between 214-2(B) collects the distance and applies it to the distance position sensing relay after processing;

Among Fig. 6: 219-1 is the countersunk bolt hole, 219-2 is the short pin hole, and 219-3 is the screw hole for hoisting.

detailed description

In the following, this paper will clearly and completely describe the technical solutions and methods in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Cases, other unlisted related, phase-modified, and phase-changed implementation cases are also included in the patent rights of the present invention.

Examples of such embodiments are shown in the drawings, wherein like or similar reference numerals designate like or similar elements or have like or similar functional elements throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, and should not 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 method for water turbine pumping and drainage driving energy conversion, including one or more drainage power generation devices 1 (reversible or pumping and discharging in pairs) Conventional water turbines 1 and 4), pumped energy storage device heavy-duty reservoir system 2, common reservoir 3, reservoir inner wall and side buffer hydraulic system device 5 of load-bearing facilities.

Among them, the heavy-duty storage tank system 2 of the pumped water storage device, please refer to Figure 2:

Heavy-duty storage tank system 2 for pumped energy storage device, including:

The heavy-duty storage tank 2 inspection entrance door and door lifting device 210 are located on the outside of the front of the heavy-duty storage tank near the base; the electric valve 211 is connected to the anti-hammer device 212; the anti-hammer device 212 is connected to the heavy-duty storage tank through pipelines The bottom or lower part of the pool; the reinforcement structure 213 of the heavy-duty reservoir wall is consolidated with the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container; the outer wall of the heavy-duty container and the structural component for the maintenance and replacement of the sealing device on the outer facade of the heavy-duty container 219 relative points (as shown in Figure 2, 214-1 and 214-2 point to the place on the 219 parts) are installed from the top of the heavy-duty container to the bottom of the vertical strip-shaped sensed sensor (distance position is sensed ) device) 214(A) (multiple, such as 214-1(A) and 214-2(A)), and at the same time at the opposite point of the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container (as shown in Figure 2) the sensor is installed ( Distance position sensor) 214 (B) (multiple, such as 214-1 (B) and 214-2 (B)); Abrasion-resistant, wear-resistant and aging-resistant sealing strip 215 is fastened on spring block 216; spring block 216 Tightened by the spring 217, the wear-resistant, wear-resistant and aging-resistant sealing strip 215 is pressed tightly on the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container; The outer wall of the container and the structural part 219 for maintenance and replacement of the sealing device; the structural part 219 for the maintenance and replacement of the outer wall of the heavy-duty container and the sealing device is tightly connected with the sealing wall of the heavy-duty container and the reinforcement wall 222 of the heavy-duty container; The container inner wall 221 carries a heavy load 220; the lightning protection device 223 is installed on the top of the heavy-duty reservoir; the hydraulic system 5 buffers the hydraulic system device 5 through multiple hydraulic pipes (such as hydraulic pipes 224) and the inner wall of the reservoir and the side of the load-bearing facility. connection; the electric valve 225 is connected to the anti-hammer device 226; the anti-hammer device 226 is connected to the bottom or the lower part of the heavy-duty reservoir through a pipeline; Loading hydraulic buffer grid assembly 228 and other parts of the heavy-duty pool; 281, heavy-duty and its container top dead center travel switch;

Preferably, another design scheme of the common storage tank 3 is to design an empty position on the upper part of the heavy-duty storage tank 2, that is, the water in the middle and lower parts of the heavy-duty storage tank 2 is connected through pipelines, anti-hammer devices and water turbines. To the vacated position above the heavy-duty reservoir 2;

Please refer to Figure 3 for a partial enlarged structural schematic diagram of the lower part of the heavy-duty reservoir 2:

The hydraulic buffer compartment assembly 228 for equal load at the bottom of the heavy-duty pool includes: the sealing strip 229 for the hydraulic buffer compartment for equal load at the bottom of the heavy-duty pool, the spring block 230 for the buffer compartment for equal load, the spring 231, and the liquid separation chamber of the heavy-duty base 236, the heavy-duty base sealing strip resists the block mounting plate 237, the heavy-duty base evenly loads the buffer plate 238 and the heavy-duty base evenly loads parts such as the pressure plate 239;

The hydraulic buffer grid sealing strip 229 for equal load at the bottom of the heavy-duty pool is fastened on the buffer grid spring block 230 for equal load;

Preferably, the spring 231 is pressed against the block 230 with a cushioning lattice spring for equal loading;

Preferably, the heavy-duty pool reinforcement base 235 is fixedly connected to the heavy-duty pool base 234;

Preferably, the hydraulic buffer compartment sealing strip 229 for equal load at the bottom of the heavy-duty pool, the buffer compartment spring counter block 230 for equal load and the heavy-duty base seal bar counter-block mounting plate 237 form the heavy-duty base liquid separation chamber 236;

Preferably, the heavy-duty pool reinforcement base 235, the heavy-duty pool base 234, the heavy-duty base sealing strip block mounting plate 237, the heavy-duty base equal-load buffer plate 238, and the heavy-duty base equal-load pressure plate 239 are fixedly connected. together;

Preferably, the heavy-duty container liquid sealing water jacket cable 232 is used to pull the heavy-duty container liquid sealing water jacket 233 to slide up and down with the heavy-duty container;

Preferably, the outer wall of the heavy-duty container and the structural part 219 for maintenance and replacement of the sealing device is connected to the sealing wall of the heavy-duty container and the reinforcement wall 222 of the heavy-duty container by bolts through the countersunk bolt hole 219-1;

Preferably, the lower part of the heavy-duty container is connected with a water jacket horn device 286 to prevent the heavy-duty container from biting the heavy-duty reservoir 2;

Please refer to FIG. 4 for a schematic diagram of the detection entrance door and related structures 210 of the heavy-duty storage tank 2:

Preferably, the maintenance entrance door 210-5 is placed in the maintenance entrance door sealing main structure door frame 210-2, and is sealed with the maintenance entrance door sealing strip 210-4;

Preferably, the maintenance entrance door 210-5 is connected or hinged to the lifting device 210-1 of the heavy-duty pool maintenance entrance door with a hook or a steel cable; The pool is sealed;

Please refer to Figure 5 for the anti-collision hydraulic system of the space between the heavy load and the side of the reservoir 2:

In Fig. 5, electric valve 502 is connected with water tank 501 through hydraulic pipeline; Electric valve 502 is connected with filter 503 through hydraulic pipeline; Filter 503 is connected with bidirectional reversible hydraulic pump 504 through hydraulic pipeline; The hydraulic pipeline is connected with the one-way valve 505 and the overflow valve 511; the one-way valve 505 is connected with the electric reversing valve 506 through the hydraulic pipeline; the electric reversing valve 506 is connected with the indicator or the hydraulic gauge 507 through the hydraulic pipeline; the indicator or The hydraulic gauge 507 is connected with the accumulator 508 through the hydraulic pipeline; through the hydraulic pipeline and the accumulator 508, it is connected with the first pressure relay (low pressure pressure relay) 509, the distance position sensing relay 512 and the second pressure relay (high pressure pressure relay) in sequence. relay) 510; the second pressure relay (high pressure pressure relay) 510 is connected to the cavity on the side of the heavy-duty reservoir 2 through a hydraulic pipeline; Use the corresponding point on the structural part 219 to install the vertical strip-shaped distance position sensor from the top to the bottom of the heavy-duty container. Corresponding points on the wall 218 are installed with distance position sensors for detecting distances , that is, a plurality of distance position sensors (such as 214-1(B) and 214-2(B)) are installed at the positions indicated by 214 and their indications are opposite to those at 219 Multiple distance position sensors (such as 214-1 (A) and 214-2 (A)) (such as 214-1 and 214-2: the sensor and sensor 214 that appear in pairs are installed on the position facing the component -1 (A) and 214-1(B), 214-2(A) and 214-2(B), and the bump-resistant liquid-filled cavity of the side wall of each heavy-duty container is connected on both sides with Inductors and sensors, and each cavity can be connected to a set of hydraulic system 5 for program-controlled adjustment of the distance between the outer surface of the heavy-duty container and the inner surface of the reservoir 2 and the liquid pressure in the cavity. The patent of the present invention Only exemplifies a legend of a simplified drawing method, that is, Figure 1, and other variant designs should also be included in the ownership of the present invention);

Preferably, another solution for canceling the side hydraulic system 5 that equally distributes the liquid pressure: when designing and constructing the heavy-duty container, make the heavy-duty container and the heavy-duty reservoir 2 fit with a very small gap, and the two cooperate The flatness of the surface is excellent, and the matching planes of each phase are strictly plumb surfaces, and the relevant loads in the heavy-duty container are basically evenly distributed, and the center of gravity is basically located at the center of the top view of the heavy-duty container;

Preferably, the position distance sensor and the distance position sensor can be metal materials such as steel and electromagnetic induction devices, but this patent is not limited to this case;

The structural part 219 for the maintenance and replacement of the outer wall of the heavy-duty container and the sealing device, referring to Fig. 2 and Fig. 6, it can be seen that:

Preferably, 219 (A) is connected with the sealing wall of the heavy-duty container and the reinforcement wall 222 of the heavy-duty container through the bolt through the countersunk bolt hole 219-1;

Or preferably two, in 219 (B), through the bolt through the countersunk bolt hole 219-1, the short pin hole 219-2 (very short, because it is convenient for maintenance, disassembly, etc., remember not to forget this short pin during maintenance and disassembly. ) is connected with the sealing wall of the heavy-duty container and the reinforcement wall 222 of the heavy-duty container;

Or preferred three and preferred four, 219 (C), 219 (D) and 219 (A) are similar, additionally design 219-1 bolt holes in 219 (A), 219 (B), 219 (C) and 219 (D) During length, bolt can be taken out (for ease of reading, this paper is not drawn to scale) before hanging out parts 219, so that parts 219 are hung out again.

Preferably, another structural component 219 for installing the outer wall of the heavy-duty container and sealing device for maintenance and replacement (to name four variants: 219(A), 219(B), 219(C) and 219(D), but not limited to The method of these four kinds) and sealing device (comprising 215, wear-resistant, wear-resistant and aging-resistant sealing strip; 216, spring block; 217, spring, etc.) is to be fixedly connected on the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container , while the surface of the heavy-duty container is a smooth surface with wear resistance and friction reduction;

A multi-scale gravity energy storage facility and method for energy conversion driven by hydraulic turbine pumping and drainage

Using a gravitational energy storage device that can store energy on multiple scales is a device that can store multi-scale energy storage facilities such as ultra-massive, huge, large, medium-scale, and small-scale (however, safety conditions such as geological safety need to be considered , security conditions, etc.), the steps are as follows:

1. Brief description:

Adjust the positive stereoscopic position of the heavy load in the reservoir 2: when the turbine pumps water to a certain level, touch the trigger switch on the outer side of the heavy load container and pass the distance position sensor, distance position sensing relay, pressure sensor, and pressure relay Under the coordination of programmed work, the hydraulic system for adjusting the pressure and distance between the outer vertical wall 219 of the heavy-duty container and the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container of the reservoir 2 works to adjust the vertical position of the heavy-duty container in the reservoir 2 bit;

In the energy storage stage: the leak-proof electric valve is opened, and the electric energy delivered by the power grid drives the water turbine to pump water from the ordinary reservoir 3 ("water" generally refers to liquid, which is referred to as "water" below and above, and the ownership of the present invention is also at the same time refers to liquid ), then the water (liquid) in the heavy-load reservoir 2 increases, and the heavy-load then rises, and the mechanical energy or electric energy that wind energy, water energy, etc. produce are converted into heavy-load potential energy, and this is the energy storage stage;

In the stage of stopping the energy storage: when the electric energy driving the water turbine stops delivering and supplying, the energy storage stops. The travel switch 281 at the apex of pool 2 (in order to ensure safety, a plurality of travel switches connected in series should be provided), after the travel switch 281 is triggered, the electric energy for driving the water turbine is stopped, and at this time, the water-proof electric valve is closed to further prevent water leakage , this process is the stage of stopping energy storage;

In the stage of energy release (release potential energy) power generation: when the heavy load descends, the hydraulic pressure energy transformed by the heavy load potential energy drives the turbine to rotate, and the turbine drives the generator rotor to rotate, and the mutual rotation of the generator rotor and the stator cuts the magnetic field lines to generate electric energy. Later, electricity is transmitted to the grid through wires, and this process is the stage of energy release and power generation.

2. Detailed steps:

Adjustment of reload in tank 2 orthostatic phase:

S1, the electric valve 503 is opened;

S2, when the distance position indicated by 214 is detected by the sensor 214 (A) (on the outer wall of the heavy-duty container and the structural part 219 for maintenance and replacement of the sealing device, and is a vertical strip from the top to the bottom of the heavy-duty container) Install the distance position sensor 214 (B) of detection distance at the corresponding point on the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container to detect that the distance is too small: ( hydraulic system action is shown in Figure 5) then the heavy-duty container outer wall 219 and the heavy-duty container When the liquid pressure in the cavity between the wear-resistant and wear-resistant lining walls 218 increases, the second pressure relay (high pressure pressure relay) 510 will act; ) is detected by the distance position sensor 214 (B) and the distance exceeds the allowable value, then the distance position sensing relay 512 acts; because the actions of the second pressure relay (high pressure pressure relay) 510 and the distance position sensing relay 512 are processed through program control Cause the reversing valve 506 in Fig. 5 to move to the right; If the distance between the heavy-duty container outer wall 219 and the heavy-duty container wear-resistant and wear-resistant lining wall 218 is detected by the distance position sensor, it is just equal to the value set by the program-controlled equipment (when using this During the method, each liquid cavity is only connected to a pipe connected to the hydraulic system 5, two pipes are connected for simplicity in the figure, one should be removed) or the pressure in the liquid cavity is equal to the set pressure When (the liquid cavity can be connected to two pipes, as shown in Figure 1 and Figure 2), the electromagnetic reversing valve is in the neutral cut-off state;

S3, the hydraulic pump 504 starts, then the liquid in the liquid tank 501 (such as a water tank) flows to the above-mentioned heavy-duty container outer wall 219 and the heavy-duty container through the hydraulic pump 504, the one-way valve 505, the reversing valve 506 and the liquid pipe (water pipe). The cavity between the damage-resistant lining walls 218 is supplied with liquid, which will increase the cavity pressure;

S4. The distance between the two vertical side walls of the cavity (the distance between 219 and 218) increases. When the liquid in the cavity increases to a certain value, the pressure in the cavity and the distance between 219 and 218 also increase to a certain value, and the second pressure When the relay (high pressure 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, when the electric valve 502 is closed, the liquid supply to the above-mentioned cavity is stopped;

S6. At the same time, the accumulator 508 provides pressure maintaining service;

S7. Similarly, if the cavity between the outer wall 219 of the heavy-duty container and the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container (hereinafter referred to as the cavity) increases, that is, the distance between 219 and 218 increases, the distance position The detected distance by the sensor 214 (A) is too large by the distance position sensor 214 (B), then the distance position sensing relay 512 produces a reaction that is too small to detect the distance; and the pressure in the cavity decreases, then the first The pressure relay (low pressure pressure relay) 509 operates; under the joint action of 512 and 509, the program control device works, and the reversing valve 506 moves to the left, and the excess liquid in the cavity flows to the liquid tank through the reversing valve 506 and the liquid pipe (water pipe) 501 (such as a water tank), 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 a specified value;

In the storage phase:

Please refer to Figure 1 to Figure 4, when in the energy storage phase:

S8. The detection entrance door 210 of the heavy-duty storage tank 2 is closed, and the door sealing strip 210-4 is automatically sealed;

S9, the electric valves 211 and 225 are opened;

S10, the driving device powered by the power grid drives the water turbine to rotate (in Fig. 1, the devices 1 and 4 are water turbines, preferably, both can be reversible water turbines, can be single-stage water turbines or two-stage and above water turbines, or the water turbines can be used as components. For the pumped-storage turbines and drainage power generation turbines that appear, this patent right covers various variants, variable scheme designs, etc.), the water turbine pumps water from the ordinary reservoir 3 and enters the lower part of the heavy-duty reservoir 2 through the pipeline, then the heavy-duty and The container rises as a whole; the wear-resistant, wear-resistant and aging-resistant sealing strip 215 slides upward on the surface of the wear-resistant and wear-resistant lining wall 218 of the heavy-duty container. The sealing strip and the lining wall 218 form a sealed cavity, and the pressure is maintained by the hydraulic system. In order to prevent the heavy-duty container outer wall from colliding with the lining wall 218 (preferably, the lining wall can be made of coated steel plate or reinforced concrete, but the ownership of the present invention is not limited to steel plate and reinforced concrete), along with the heavy load on the water turbine drive As the load rises, the electrical energy is converted into the potential energy of the heavy load and its container, which is the energy storage stage;

S11. During the heavy-load lifting process, the heavy-duty container sealing liquid water jacket cable 232 pulls the heavy-duty container liquid-sealing water jacket 233 to rise along the heavy-duty container outer wall and the lining wall 218;

In the stage of stopping energy storage:

S12. When the power supply to the water turbine is stopped, the water turbine stops rotating, the water turbine stops delivering water to the heavy-duty reservoir 2, the heavy load stops rising, the electric valves 211 and 225 are closed, and energy storage is stopped;

S13. If the outer wall of the heavy-duty container rises to the top of the heavy-duty reservoir 2, that is, when it reaches the top dead center, a plurality of travel switches 281 connected in series will be triggered to cut off the power supply driving the water turbine, and the water turbine will stop rotating. Stop water delivery and enter the heavy load reservoir 2, the heavy load stops rising, and the electric valves 211 and 225 are closed, which stops the energy storage;

In the energy release (release potential energy) power generation stage:

S13, open the electric valves 211 and 225 (preferably, when multiple water turbines (such as water turbines 1 and 4, but not limited to two water turbines and not limited to two electric valves in the patent of the present invention) are all reversible water turbines, all The electric valves are all opened; preferably, when some water turbines are specially used for pumped storage and other water turbines are specially used for drainage power generation, the electric valves and This side leads to an electric valve on the pipe of the common reservoir 3, ready to generate electricity);

S14, start the water turbine to drive the power generation device, and simultaneously lower the heavy load container and the heavy load;

During the shutdown stage:

S15. When it is necessary to stop power generation, the water turbine is shut down, and the water turbine stops driving the power generation device;

S16, see Figure 2: When the boss 227 at the bottom of the heavy-duty container is applied to the bottom of the heavy-duty pool by hydraulic pressure (water pressure), the hydraulic buffer grid assembly 228 and other parts of the heavy-duty pool are loaded, and the heavy-duty and heavy-duty containers stop. Descend, and the water turbine stops rotating. At this moment, it is the bottom dead center moment of the heavy load and the heavy load container, which will cause the power generation facility to stop generating electricity. The step-by-step concrete steps are (see Fig. 3): the boss 227 at the bottom of the heavy load container Descend to touch and compress the hydraulic buffer grid seal 229, the hydraulic buffer grid seal 229 compresses the block 230 with the buffer grid spring for equal load, then the spring 231 compresses, and the liquid (water) in the heavy-duty base liquid separation cavity 236 ) is compressed, the liquid in the separation cavity 236 generates pressure, and the bottom of the entire heavy-duty pool is equipped with a hydraulic buffer grid assembly 228 (see Figure 2) to carry the entire heavy-duty and heavy-duty container, and the entire heavy-duty reservoir 2 is completely The heavy load and the load are loaded and transmitted to the heavy-duty base sealing strip block mounting plate 237, the heavy-duty base equal load buffer plate 238, the heavy-duty base equal-load pressure plate 239 and the heavy-duty pool reinforcement base 235 through hydraulic pressure (water pressure). , heavy-duty pool base 234;

Overhaul and inspection stage of heavy-duty storage tank 2:

S17. Overhaul and inspection of the interior of the second tank of the heavy-duty storage tank:

S17-1. Analysis of the electronic model of the entire energy storage facility obtained through digital twin technology and the prediction of the reduced version of the physical model (including the center of gravity model): when the water in the heavy-duty storage tank 2 is drained, the heavy-load It may be slightly biased to which side, and then through digital display or analog gap detection facilities and other optical facilities and cameras (such as detection by the distance position sensor indicated by 214) multiple times of safe experiments and multiple adjustments to avoid gaps at parts prone to bumps Open possible knocking phenomena (such as preventing the knocking phenomenon on the inner wall of the heavy-duty reservoir 2 on the outer wall of the heavy-duty container, etc.);

S17-2, generate electricity through the water turbine first, so that when the boss 227 at the bottom of the heavy-duty container drops to the bottom dead center, then drain the remaining liquid (water) in the lower part of the heavy-duty reservoir 2 (note that the heavy-duty reservoir should be drained) The lower part of 2 is connected to the atmosphere. In order to prevent the residual water in the reservoir 2 from being released due to atmospheric pressure, it is only necessary to connect another water pipe to the lower part or bottom of the heavy-duty reservoir 2, and then connect the waterproof hammer device, and install an electric motor at the outlet. The valve is closed with an electric valve during the non-overhaul period, and the electric valve is opened during the overhaul period, and another water pump is connected to pump the water to the common reservoir 3. Because the technology is simple, the present invention omits it, but it is also necessary. The technical solutions described herein and their variants are covered by this patent), wherein the electric valves should be closed successively according to requirements.

S17-3, see Figure 4: The lifting device 210-1 of the maintenance entrance door of the heavy-duty pool lifts the maintenance entrance door 210-5 to the top dead center with a hinged hook or a steel cable, and touches multiple series-connected travel switches to repair the entrance door The hoisting device stops moving, and the space inside the heavy-duty reservoir 2 has been opened at this time, and maintenance personnel can enter for maintenance;

S17-4. Overhaul the related components of the heavy-duty water storage tank 2, especially vulnerable parts, such as seals, etc.;

S18. Overhaul and inspection of structural parts 219 for maintenance and replacement of the outer wall of the heavy-duty container and sealing device:

S18-1, the same as S17-1, the electronic model of the entire energy storage facility obtained through the digital twin technology and the forecast analysis of the reduced physical model (including the center of gravity model): when the water in the heavy-duty storage tank 2 is drained Finally, predict which side the heavy load may be slightly biased to, and then pass through digital display or simulated gap detection facilities and other optical facilities and cameras (such as through the distance position sensor indicated by 214 to detect) multiple safe experiments and multiple adjustments The gap between the parts prone to bumping avoids possible bumping phenomena (such as preventing the bumping phenomenon on the outer wall of the heavy-duty container and the inner wall of the heavy-duty reservoir 2, etc.);

S18-2, similar to S17, first discharge all the water (liquid) in the heavy-duty reservoir 2, the bottom boss 227 of the heavy-duty container is lowered to the bottom dead center, and the entire heavy-duty reservoir bottom is equipped with a hydraulic buffer grid assembly 228 (see Fig. 2) carries the whole heavy load and heavy load container, and all heavy load pressures are delivered to heavy load pool reinforcement base 235, heavy load pool base 234 again;

S18-3. Remove the bolts in the bolt holes 219-1 and the short pins in the short pin holes 219-2 in the structural part 219 for maintenance and replacement of the outer wall of the heavy-duty container and the sealing device (remember: if there is a short pin, the part 219 It is necessary to move along the axis of the pin hole for a distance slightly longer than the length of the short pin, and then lift the part 219); remove the anti-loosening washer and the anti-leakage washer in the bolt hole 219-1 in the structural part 219 for maintenance and replacement of the outer wall of the heavy-duty container and the sealing device ;

S18-4, install the bolt ring for lifting in the screw hole 219-3 in the structural part 219 for maintenance and replacement of the outer wall of the heavy-duty container and the sealing device;

S18-5. Structural components 219 for maintenance and replacement of the outer wall of the heavy-duty container and the sealing device;

S18-6. Inspection and maintenance of the outer wall of the heavy-duty container and the structural parts 219 for maintenance and replacement of the sealing device, and related parts such as the heavy-duty water storage tank 2, etc., especially vulnerable parts, such as seals, etc.;

S19. Inspection and maintenance of the anti-collision hydraulic system of the gap between the heavy load and the side of the reservoir 2

S19-1. Analysis of the electronic model of the entire energy storage facility obtained through digital twin technology and the prediction of the reduced version of the physical model (including the center of gravity model): when the water in the heavy-load storage tank 2 is drained, the heavy-load It may be slightly biased to which side, and then through digital display or analog gap detection facilities and other optical facilities and cameras (such as detection by the distance position sensor indicated by 214) multiple times of safe experiments and multiple adjustments to avoid gaps at parts prone to bumps Open possible bumping phenomena (such as preventing the bumping phenomenon on the inner wall of the heavy-duty reservoir 2 on the outer wall of the heavy-duty container, etc.);

S19-2, similar to S17, first discharge all the water (liquid) in the heavy-duty reservoir 2, the boss 227 at the bottom of the heavy-duty container is lowered to the bottom dead center, and the bottom of the entire heavy-duty reservoir is equipped with a hydraulic buffer grid assembly 228 (see Fig. 2) carries the whole heavy load and heavy load container, and all heavy load pressure is delivered to heavy load pool reinforcement base 235, heavy load pool base 234 again;

S19-3. Check and overhaul the anti-collision hydraulic system of the space between the heavy load and the side of the reservoir 2.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection 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.

Images