CN114649819A - Gravity module energy storage system and operation method - Google Patents

Gravity module energy storage system and operation method Download PDF

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Publication number
CN114649819A
CN114649819A CN202210292631.XA CN202210292631A CN114649819A CN 114649819 A CN114649819 A CN 114649819A CN 202210292631 A CN202210292631 A CN 202210292631A CN 114649819 A CN114649819 A CN 114649819A
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energy storage
yard
section
power generation
module
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陈立武
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G35/00—Mechanical conveyors not otherwise provided for
    • 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
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G3/00—Other motors, e.g. gravity or inertia motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • H02J15/007—Systems for storing electric energy involving storage in the form of mechanical energy, e.g. fly-wheels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application relates to the technical field of gravity energy storage, and provides a gravity module energy storage system and an operation method, wherein the gravity module energy storage system comprises: upper and lower storage yard and a plurality of energy storage unit, the energy storage unit includes: the system is simple and reliable, the site selection requirement is relatively low, the service life is more than 50 years, and the energy storage efficiency is more than 85%.

Description

Gravity module energy storage system and operation method
Technical Field
The utility model belongs to the technical field of physics energy storage electricity generation, concretely relates to, it stores to turn into the gravitational potential energy with the electric energy when electric wire netting side or electricity generation side electric quantity are surplus, and the electric energy is carried to the electric wire netting with the gravitational potential energy conversion when the electric quantity demand is high, also possesses a gravity module energy storage system and an operation method who adjusts electric wire netting frequency, stabilizes electric wire netting operation function simultaneously.
Background
In order to realize the double-carbon target and reduce the emission of carbon dioxide, the installed capacity of wind energy and solar energy power generation is gradually improved, but the wind energy and the solar energy are greatly influenced by weather, the power generation can be realized only by the sun and the wind, random and variable characteristics exist, and the direct internet surfing causes great impact on the stability of a power grid, so that an energy storage system with certain capacity needs to be matched to stabilize internet surfing load; in addition, the energy storage system is required to store surplus electric quantity during the low peak of the power utilization, and the electric energy is generated and released during the high peak of the power utilization, so that the requirements of production and life are met.
Research and development of energy storage technology are always paid attention by energy, traffic, electric power, telecommunication and other departments of various countries. The electric energy can be converted into chemical energy, potential energy, kinetic energy, electromagnetic energy and the like for storage, and can be divided into four types of physical energy, electromagnetic energy, electrochemical energy and phase change energy storage according to the specific mode. Physical energy storage currently includes pumped storage, compressed air storage, and flywheel storage. Site selection of the pumped storage power station requires that in areas with rich water resources and high terrain difference, site selection difficulty is high, areas with water resource shortage are difficult to implement, construction period is long, and energy storage efficiency is 75-80%; compressed air energy storage needs to be matched with a large-scale air storage container or a rock cavern, site selection is greatly limited, and the energy storage efficiency is about 70 percent and is relatively low; the flywheel has high energy storage and self-discharge rate, and is difficult to realize large-scale and long-time energy storage.
Disclosure of Invention
An object of the embodiment of the application is to provide a gravity module energy storage system, so as to solve the technical problems of difficult site selection and low efficiency of the existing physical energy storage in the prior art.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: there is provided a gravity module energy storage system comprising: the system comprises an upper storage yard, a lower storage yard and a plurality of energy storage units; the energy storage unit comprises a lower storage yard energy storage module, an upper storage yard energy storage module, an energy storage power generation car, a transport car group, an energy storage transport channel, an auxiliary transport channel, a lower storage yard energy storage hook and unhook chamber, an upper storage yard auxiliary hook and unhook chamber, a lower storage yard auxiliary hook and unhook chamber, a guide road, an upper storage yard steel rail section and a lower storage yard steel rail section; the energy storage transportation channel and the auxiliary transportation channel are connected with the guide roads of the lower storage yard energy storage module and the upper storage yard energy storage module through the guide roads to form an annular channel for the transportation vehicle group to walk; the energy storage transportation channel and the auxiliary transportation channel are connected with the upper storage yard steel rail section and the lower storage yard steel rail section to form an annular channel which surrounds the lower storage yard energy storage module and the upper storage yard energy storage module and is used for the energy storage power generation vehicle to walk.
In one embodiment, 2-10 of said energy storage units share said auxiliary transportation channel.
In one embodiment, the upper yard energy storage module and the lower yard energy storage module respectively comprise a wheel type combined synchronous gantry crane, a standard gravity block, a guide road, overhead beams and a walking groove, the overhead beams are arranged in rows at certain intervals, a plurality of rows of overhead beams are aligned in parallel, the standard gravity block is sequentially stacked in rows on the overhead beams, the number of stacked layers in each row is not less than 3, each row of overhead beams is arranged under the standard gravity block and in two rows, the guide road is arranged in the middle of the overhead beams, the overhead beams and the guide road form a loading and unloading channel of the standard gravity block, the standard gravity block is symmetrically arranged on two sides of the standard gravity block in every 3-4 rows, and the wheel type combined synchronous gantry crane walks in the walking groove.
In one embodiment, the standard gravity block is a hollow cuboid or a cube made of reinforced concrete or steel plates, the hollow cuboid or the cube can be filled with one or more of gravels, gypsum, construction wastes and slag with higher density, the average mass per cube is more than 2 tons, two pairs of L-shaped lifting holes are symmetrically arranged on two sides of the bottom surface of the standard gravity block along the length direction of the guide road, and any one standard gravity block can bear the weight of at least 2 stacked standard gravity blocks in an overhead mode.
In one embodiment, the guide road is a concrete or asphalt road, the center line of the guide road is symmetrically provided with two rows of beams, the side wall of the beam facing the center line of the road is perpendicular to the road surface, the clear width of the two rows of beams is 10-50cm, the height of the two rows of beams is 5-30cm, a groove with a rectangular cross section is formed between the two beams and the road surface, the steering wheels of the transport vehicle set run in the groove, and the beams are concrete or steel beams.
In one embodiment, the front end and the rear end of the vehicle body of the energy storage power generation vehicle are respectively provided with two transmission shafts which are vertical to the walking direction, the transmission shafts extend out of two sides of the vehicle body, the planes of the two transmission shafts on the upper parts of the two ends are horizontally parallel to the planes of the two transmission shafts on the lower parts of the two ends, and two ends of 4 transmission shafts are respectively provided with 1 transmission gear.
In one embodiment, the energy storage power generation vehicle comprises a power generation motor, a power generator, a walking motor, a transmission gear, a gear transmission system, a gearbox, a vehicle body and wheels, wherein 2 transmission shafts at one end of the energy storage power generation vehicle are connected with the power generation motor through the gear transmission system and the gearbox, and 2 transmission shafts at the other end of the energy storage power generation vehicle are connected with the power generator and the walking motor through the gear transmission system and the gearbox; when the energy storage power generation vehicle pulls the transport vehicle group loaded with the standard gravity block to drive from a lower storage yard to an upper storage yard in the energy storage operation section, the motor generator reversely runs to consume electric energy and convert the electric energy into gravitational potential energy; when a transport vehicle group loaded with standard gravity blocks pulls an energy storage power generation vehicle to drive from an upper storage yard to a lower storage yard in an energy storage operation section, a motor generator operates in a forward direction to convert gravitational potential energy into electric energy; when the transport vehicle group pulls the energy storage power generation vehicle to drive from the upper storage yard to the lower storage yard in the auxiliary operation section, the generator operates to convert the self gravitational potential energy of the transport vehicle group and the energy storage power generation vehicle into electric energy, and the operation power consumption of the energy storage is recovered; when the motor generator and the generator are in a non-working state, the walking motor operates to provide walking power for the energy storage generator car.
In an embodiment, the transport vechicle group includes the tractor at both ends and a plurality of transport vechicles in the middle of, and the tractor all is equipped with the couple with the both ends of transport vechicle, and through couple interconnect, the transport vechicle is unpowered trailer, and 3 wheels are respectively established at both ends around every tractor and the transport vechicle, totally 6 wheels, and the tractor is equipped with two between two parties with the automobile body of transport vechicle and turns to the wheel, and both sides respectively set up a pair of universal wheel.
In one embodiment, the two sides of the axle of the steering wheel are provided with support frames, the support frames are provided with small rolling wheels, the two small rolling wheels are radially perpendicular to the steering wheel, the steering wheels of the tractor and the transport vehicle run in the groove of the guide road, the universal wheels run synchronously on the roads on the two sides, the two small rollers can roll on the inner wall of the groove when the tractor and the transport vehicle run, the clearance between the outer edge of each small roller and the inner wall of the groove is 1-5mm, and the mounting height is at least 1cm from the clearance of the road surface.
In one embodiment, the energy storage transportation channel and the auxiliary transportation channel each comprise a composite road, the energy storage transportation channel comprises a lower storage yard energy storage module section, a lower storage yard energy storage regulation section, an energy storage operation section, an upper storage yard energy storage regulation section and an upper storage yard energy storage module section, and the auxiliary transportation channel comprises a lower storage yard auxiliary energy storage module section, a lower storage yard auxiliary regulation section, an auxiliary operation section, an upper storage yard auxiliary regulation section and an upper storage yard auxiliary module section; the lower storage yard energy storage hooking and unhooking chamber is arranged at the joint of the lower storage yard energy storage adjusting section and the energy storage operation section, the upper storage yard energy storage hooking and unhooking chamber is arranged at the joint of the upper storage yard energy storage adjusting section and the energy storage operation section, the upper storage yard auxiliary hooking and unhooking chamber is arranged at the joint of the upper storage yard auxiliary adjusting section and the auxiliary operation section, and the lower storage yard auxiliary hooking and unhooking chamber is arranged at the joint of the lower storage yard auxiliary adjusting section and the auxiliary operation section.
In one embodiment, the composite road comprises a guide road and steel rails, two steel rails are symmetrically laid on two sides of the guide road, the energy storage power generation car runs on the steel rails, and the transport vehicle set loaded with standard blocks run on the guide road.
In one embodiment, the upper yard energy storage module section, the lower yard energy storage module section, the upper yard auxiliary module section, the lower yard auxiliary module section, and the guide roads which are respectively arranged at two sides of the upper yard energy storage module and the lower yard energy storage module and are perpendicular to the energy storage modules, the guide road bifurcation of the composite road is connected with the guide roads of the energy storage modules of the upper yard energy storage module and the lower yard energy storage module, and the steel rail of the composite road is connected with the upper steel rail section and the lower steel rail section.
In one embodiment, the energy storage operation section and the auxiliary operation section have a horizontal gradient of 15-60 degrees, and each of the energy storage operation section and the auxiliary operation section further comprises a rack, an energy storage and power generation slide line and a support structure, wherein a pair of racks is respectively arranged on the upper side and the lower side of each of the two sides of the support structure, the number of the racks is 4, the tooth surface of the lower rack faces upwards, the tooth surface of the upper rack faces downwards, the upper rack is opposite to the lower rack in parallel, the upper rack is meshed with transmission gears at the upper parts of the two ends of the energy storage and power generation vehicle, the lower rack is meshed with transmission gears at the lower parts of the two ends of the energy storage and power generation vehicle, and a composite road is arranged at the bottom of the support structure.
Another object of the present application is to provide an operation method of a gravity module energy storage system, the operation method includes an energy storage operation state and a power generation operation state; the energy storage operation state comprises the following steps:
a1, in a lower storage yard, standard gravity blocks are stacked on overhead beams as required, a transport vehicle group positioned on the auxiliary module section of the lower storage yard turns to the energy storage module of the lower storage yard, and drives to a loading and unloading channel of the standard gravity blocks of the energy storage module of the lower storage yard through a guide road, an energy storage power generation vehicle drives to a steel rail section of the lower storage yard and drives to the energy storage module section of the lower storage yard through the turning of the auxiliary module section of the lower storage yard, and stops waiting at the energy storage module section of the lower storage yard close to the energy storage adjusting section of the lower storage yard;
a2, before a transport vehicle set drives into a loading and unloading channel, a wheel type combined synchronous gantry crane synchronously lifts other layers of standard gravity blocks which are preset to be loaded except the bottom layer, the lifting height is 3-10cm, and the standard gravity blocks are kept suspended;
a3, stopping the transport vehicle group under a standard gravity block to be loaded, disengaging the jacking bottom layer standard gravity block from the overhead beam, maintaining the jacking state, moving out of the lower storage yard energy storage module, descending and jacking, completing the loading of the standard gravity block and moving to the lower storage yard energy storage module section;
a4, lowering and stacking the other layers of standard gravity blocks lifted by the wheel type combined synchronous gantry crane on the overhead beam;
a5, in the lower storage yard energy storage module section, before a transport vehicle set loading standard gravity blocks, an energy storage power generation vehicle drives into a lower storage yard energy storage hook and unhook chamber through an energy storage adjusting section, after hook connection and gear setting of the energy storage power generation vehicle are completed, a power generation motor of the energy storage power generation vehicle is started, the transport vehicle set loading the standard gravity blocks is dragged to drive to an upper storage yard energy storage hook and unhook chamber on the energy storage operation section, and along with the increase of the running height of the energy storage power generation vehicle, electric energy is converted into gravitational potential energy of the standard gravity blocks through the power generation motor, so that the storage of the electric energy is realized;
a6, driving the energy storage power generation car into the upper yard energy storage adjusting section after the energy storage power generation car and the transport car group loaded with the standard gravity block are unhooked, driving the energy storage power generation car into the upper yard steel rail section through the upper yard energy storage adjusting section and the upper yard energy storage module section, driving the energy storage power generation car to the upper yard auxiliary module section, and stopping waiting before driving into the upper yard auxiliary module section;
a7, a transport vehicle group loaded with standard gravity blocks passes through an upper storage yard energy storage adjusting section, turns to an upper storage yard energy storage module at an upper storage yard energy storage module section, and drives to an upper storage yard energy storage module standard gravity block loading and unloading channel through a guide road;
a8, before a transport vehicle group loaded with standard gravity drives into an upper storage yard energy storage module, synchronously hoisting each layer of standard gravity block at a preset unloading position by a wheel type combined synchronous gantry crane, and hoisting the standard gravity block by the crane to a height of 3-10cm higher than that of the standard gravity block to keep suspended;
a9, jacking the standard gravity block by a transport vehicle group loaded with the standard gravity block, driving the standard gravity block into an upper storage yard energy storage module in a jacking state, stopping at a preset unloading standard gravity block position, descending and jacking, supporting two ends of the standard gravity block on an overhead beam, completing unloading of the standard gravity block and driving the standard gravity block to an upper storage yard auxiliary module section;
a10, lowering and stacking the lifted standard gravity blocks on the unloaded standard gravity blocks by a wheel type combined synchronous gantry crane;
a11, driving the transport vehicle group into the upper storage yard auxiliary module section, starting the energy storage power generation vehicle, driving the following transport vehicle group into the upper storage yard auxiliary hook and hook room through the upper storage yard auxiliary adjustment section, driving the transport vehicle group in front of the transport vehicle group, driving the energy storage power generation vehicle behind the transport vehicle group, after the hook and the energy storage power generation vehicle are set by the gear, driving the energy storage power generation vehicle to the lower storage yard auxiliary hook and hook room on the auxiliary operation section, starting the generator of the energy storage power generation vehicle, and converting the self gravitational potential energy of the energy storage power generation vehicle and the transport vehicle group into electric energy through the generator of the energy storage power generation vehicle along with the reduction of the driving height of the energy storage power generation vehicle, sending the electric energy into an intranet, and recovering the running power consumption of energy storage;
a12, hanging a unhooking chamber in the lower storage yard in an auxiliary manner, unhooking the energy storage power generation car and the transport car set, turning the transport car set to the lower storage yard energy storage module through the lower storage yard auxiliary adjusting section in the lower storage yard auxiliary module section, driving the transport car set to a standard gravity block loading and unloading channel of the lower storage yard energy storage module through a guide road, turning the energy storage power generation car through the lower storage yard auxiliary module section to drive into the lower storage yard steel rail section and drive the energy storage power generation car to the lower storage yard energy storage module section, and stopping waiting in the lower storage yard energy storage module section close to the lower storage yard energy adjusting section; thus, one energy storage operation cycle is completed, and the steps A2-A12 are repeated for a plurality of times continuously by a certain number of energy storage power generation cars and transport vehicle groups, so that continuous energy storage of one energy storage unit is realized, and high-capacity and long-time energy storage is realized by synchronous operation of a plurality of energy storage units;
a13, during energy storage operation, the standard gravity blocks of the upper storage yard energy storage module and the lower storage yard energy storage module are lifted, loaded and unloaded in sequence, wherein the lower storage yard lifts and loads the standard gravity blocks from the lower storage yard energy storage module section to the lower storage yard auxiliary module section in sequence, and the upper storage yard lifts and unloads the standard gravity blocks from the upper storage yard auxiliary module section to the upper storage yard energy storage module section in sequence;
the power generation operation state includes the steps of:
b1, turning the transport vehicle group on the upper storage yard auxiliary module section to the upper storage yard energy storage module, and driving the transport vehicle group to a standard gravity block loading and unloading channel of the upper storage yard energy storage module through a guide road;
b2, before the transport vehicle set drives into the loading and unloading channel, the wheel type combined synchronous gantry crane synchronously lifts the standard gravity blocks of other layers except the bottom layer which are preset to be loaded, the lifting is carried out by 3-10cm, and the standard gravity blocks are kept suspended;
b3, stopping the transport vehicle group under the standard gravity block to be loaded, disengaging the jacking bottom layer standard gravity block from the overhead beam, maintaining the jacking state, moving out of the upper storage yard energy storage module, descending and jacking to complete the loading of the standard gravity block and moving to the upper storage yard energy storage module section;
b4, lowering and stacking the other layers of standard gravity blocks lifted by the wheel type combined synchronous gantry crane on the overhead beam;
b5, the energy storage power generation vehicle drives into the upper storage yard steel rail section through the upper storage yard auxiliary module section and drives to the upper storage yard energy storage module section, the upper storage yard steel rail section close to the upper storage yard energy storage module section is stopped, the transport vehicle group to be loaded with the standard gravity block drives into the upper storage yard energy storage module section, the energy storage power generation vehicle is started, and the transport vehicle group loaded with the standard gravity block drives into the upper storage yard energy storage hook-and-unhook chamber through the upper storage yard energy storage adjusting section;
b6, the carrier vehicle group loaded with the standard gravity block is in front, the energy storage power generation vehicle is in back, after the hook connection and the gear setting of the energy storage power generation vehicle are completed, the carrier vehicle group loaded with the standard gravity block drags the energy storage power generation vehicle to drive to the lower storage yard energy storage hook-and-unhook room on the energy storage operation section, a power generation motor of the energy storage power generation vehicle is started, and along with the reduction of the running height of the energy storage power generation vehicle, the gravitational potential energy of the standard gravity block is converted into electric energy through the power generation motor, so that the power generation is realized;
b7, in the lower storage yard energy storage hook unhooking chamber, an energy storage power generation car and a transport vehicle group loaded with standard gravity blocks finish unhooking and drive into the lower storage yard energy storage adjusting section, the energy storage power generation car drives into the lower storage yard steel rail section through the lower storage yard energy storage adjusting section and the lower storage yard energy storage module section in a steering mode and drives to the lower storage yard auxiliary module section, and the lower storage yard auxiliary module section is stopped and waits before the lower storage yard auxiliary adjusting section;
b8, the transport vehicle group loaded with the standard gravity block turns to the lower storage yard energy storage module through the lower storage yard energy storage adjusting section, and drives to the lower storage yard energy storage module standard gravity block loading and unloading channel through the guide road;
b9, before the transport vehicle group loaded with standard gravity drives into the storage yard energy storage module, synchronously hoisting each layer of standard gravity block at the preset unloading position by a wheel type combined synchronous gantry crane, hoisting the standard gravity block by the crane to a height of 3-10cm higher than that of the standard gravity block, and keeping the standard gravity block suspended; the transportation vehicle group loaded with the standard gravity block jacks the standard gravity block, drives into the lower storage yard energy storage module in a maintained jacking state, stops at a preset unloading standard gravity block position, descends and jacks, and supports two ends of the standard gravity block on the overhead beam to finish unloading of the standard gravity block and drive into the lower storage yard auxiliary module section; (ii) a
B10, descending and stacking the lifted layers of standard gravity blocks on the unloaded standard gravity blocks by using a wheel type combined synchronous gantry crane;
b11, in the lower storage yard auxiliary module section, the energy storage power generation car is in front, the transport car group is behind, and the transport car group drives into the lower storage yard auxiliary hook and unhook chamber through the auxiliary adjusting section, after the hooking is completed, the energy storage power generation car starts to drive the electric traction transport car group to drive towards the upper storage yard auxiliary hook and unhook chamber on the auxiliary operating section;
b12, an upper yard auxiliary hook-off room is hung, the energy storage power generation car and the transport vehicle unit finish hook-off, the energy storage power generation car drives into the upper yard steel rail section and drives to the upper yard energy storage module section through the upper yard auxiliary adjusting section and the upper yard auxiliary module section, and the upper yard rail section close to the upper yard energy storage module section stops waiting;
b13, the transport vehicle group drives into the upper storage yard auxiliary module section through the upper storage yard auxiliary adjusting section to complete one power generation cycle, and the steps of B1-B12 are continuously circulated for multiple times by a certain number of energy storage power generation vehicles and the transport vehicle group, so that continuous power generation of one energy storage unit is realized, and high-capacity and long-time power generation is realized by synchronous operation of a plurality of energy storage units;
and B14, the standard gravity blocks of the upper storage yard energy storage module and the lower storage yard energy storage module are hoisted, loaded and unloaded sequentially during power generation operation, wherein the standard gravity blocks are hoisted and loaded sequentially by the upper storage yard from the upper storage yard energy storage module section to the upper storage yard auxiliary module section, and the standard gravity blocks are hoisted and unloaded sequentially by the lower storage yard from the lower storage yard auxiliary module section to the lower storage yard energy storage and transportation unit section.
The application provides a gravity module energy storage system and an operation method, which has the beneficial effects that: the energy storage power generation car set pulls the transport car set loaded with the standard gravity blocks to convert electric energy into gravitational potential energy from a lower storage yard to an upper storage yard through the energy storage transportation channel so as to realize energy storage, and the transport car set loaded with the standard gravity blocks pulls the energy storage power generation car to convert the gravitational potential energy into electric energy from the upper storage yard to the lower storage yard through the energy storage transportation channel so as to realize power generation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic layout structure diagram of a gravity module energy storage system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an energy storage state of the gravity module energy storage system according to the embodiment of the present application;
fig. 3 is a schematic structural diagram of a power generation state of the gravity module energy storage system according to an embodiment of the present disclosure;
fig. 4 is a schematic front view of an energy storage module in the gravity module energy storage system according to an embodiment of the present disclosure;
fig. 5 is a schematic side view of an energy storage module in a gravity module energy storage system according to an embodiment of the present disclosure;
fig. 6 is a schematic top view of an energy storage module in a gravity module energy storage system according to an embodiment of the present disclosure;
FIG. 7 is a schematic cross-sectional view of the energy storage operation section and the auxiliary operation section at A-A in FIG. 2;
fig. 8 is a schematic side view of an energy storage operation slope in the energy storage system of the gravity module according to the embodiment of the present disclosure;
FIG. 9 is a schematic cross-sectional structural view of a standard gravity block of the energy storage generator car and the transport vehicle set apparatus at B-B in FIG. 2;
FIG. 10 is a schematic front view of a transport vehicle in a running train set in a gravity module energy storage system according to an embodiment of the present disclosure in a jacking state;
FIG. 11 is a schematic side view of a guiding road on which a transport vehicle in a running train set is driven in a jacking state in a gravity module energy storage system according to an embodiment of the present disclosure
FIG. 12 is a schematic top view of a running train set in a gravity module energy storage system according to an embodiment of the present disclosure;
FIG. 13 is a schematic cross-sectional view of the composite roadway at C-C in FIG. 2;
fig. 14 is a schematic sectional view of the guide way in fig. 6 at D-D.
Wherein, in the figures, the respective reference numerals:
1. a lower yard energy storage module; 2. an upper yard energy storage module; 1-1 energy storage unit; 1-2 energy storage units; 3. a composite road; 4. a storage yard is arranged; 5. getting on a storage yard; 6. an energy storage transport channel; 6-1, a storage yard energy storage module section; 6-2, a storage yard energy storage adjusting section; 6-3 energy storage operation section; 6-4, loading the storage yard energy storage adjusting section; 6-5, a storage yard energy storage module section; 7. an auxiliary transport channel; 7-1, lower yard auxiliary module section; 7-2, a storage yard auxiliary adjusting section; 7-3 auxiliary operation section; 7-4, an auxiliary adjusting section of the upper yard; 7-5, loading the auxiliary module section of the storage yard; 8. a transport vehicle set; 9. guiding a road; 10. a standard gravity block; 11. wheel type combined synchronous gantry cranes; 12. an energy storage power generation vehicle; 13. a lower yard rail section; 14. a transport vehicle set for loading standard gravity blocks; 15. the lower yard stores the energy and hangs the unhooking room; 16. an energy storage hooking and unhooking chamber is arranged on the storage yard; 17. an upper yard track section; 18. an auxiliary hooking and unhooking chamber is arranged on the storage yard; 19. the lower yard is assisted with a unhooking chamber; 20. an overhead beam; 21. a walking groove; 22. an L-shaped hanging hole; 23. a beam; 24. a rear end upper drive shaft; 25. a rear end upper transmission gear; 26. a front end upper drive shaft; 27. a front end upper transmission gear; 28. a rear lower drive shaft; 29. a rear lower transmission gear; 30. a front lower drive shaft; 31. a front lower transmission gear; 32. an upper rack; 33. a lower rack; 34. a tractor; 35 a transport vehicle; 36. a steering wheel; 37. a universal wheel; 38. an axle; 39. a support structure; 40. a small roller; 41. a steel rail; 42. the inner wall of the groove; 43. a support frame.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
A detailed description of a gravity module energy storage system provided by an embodiment of the present application will now be provided as illustrated in fig. 1-14. The gravity module energy storage system comprises an upper storage yard 5, a lower storage yard 4 and a plurality of energy storage units; as shown in fig. 2 and fig. 3, two energy storage units may be provided, such as the energy storage unit 1 and the energy storage unit 2, and of course, ten, twenty or even hundreds of energy storage units may be provided, and the number is determined according to the energy storage capacity and the site size. Wherein, the height difference of the upper storage yard 5 and the lower storage yard 4 is more than 200m, the ground is flat, the area meets the requirements of energy storage capacity and time length, mountain environment construction is generally selected for site selection, the upper storage yard 5 is positioned at the top of a mountain, and the lower storage yard 4 is positioned at the bottom of the mountain.
As shown in fig. 2 and 3, the energy storage unit 1-1/1-2 includes a lower yard energy storage module 1, an upper yard energy storage module 2, an energy storage power generation car 12, a transport car group 8, an energy storage transport passage 6, an auxiliary transport passage 7, a lower yard energy storage unhooking room 15, an upper yard energy storage unhooking room 16, an upper yard auxiliary unhooking room 18, a lower yard auxiliary unhooking room 19, a guide road 9, an upper yard steel rail section 17 and a lower yard steel rail section 13; the energy storage transportation channel 6 and the auxiliary transportation channel 7 are connected with the lower storage yard energy storage module 1 and the guide road 9 of the upper storage yard energy storage module 2 through the guide road 9 to form an annular channel for the transportation vehicle group 8 to walk; the energy storage transportation channel 6 and the auxiliary transportation channel 7 are connected with the upper yard steel rail section 17 and the lower yard steel rail section 13 to form an annular channel which surrounds the lower yard energy storage module 1 and the upper yard energy storage module 2 and is used for the energy storage power generation car 12 to walk. The annular passageway for the traveling transport vehicle 8 is located inside the annular passageway for the traveling energy storage generator car 12.
In the embodiment, the energy storage power generation cars 12 pull the transport car group 8 loaded with the standard gravity blocks 10 to convert electric energy into gravitational potential energy from the lower storage yard 4 to the upper storage yard 5 through the energy storage transportation channel 6, so that energy storage is realized, the transport car group 8 loaded with the standard gravity blocks 10 pulls the energy storage power generation cars 12 to convert the gravitational potential energy into electric energy from the upper storage yard 5 to the lower storage yard 4 through the energy storage transportation channel 6, so that power generation is realized, the system is simple and reliable, the site selection requirement is relatively low, the service life is more than 50 years, and the energy storage efficiency is more than 85%.
As shown in fig. 2 and fig. 3, when the electric quantity on the power grid side or the power generation side is excessive, the transport vehicle group 8 of the energy storage unit 1-1 loads the standard gravity block 10 in the lower storage yard energy storage module 1 of the lower storage yard 4 and runs to the energy storage transport section 6, the energy storage power generation vehicle 12 also runs to the energy storage transport channel 6 through the lower storage rail section 13, after the two are hooked in the lower storage yard energy hooking and unhooking chamber 19, the energy storage power generation vehicle 12 pulls the transport vehicle group 14 loaded with the standard gravity block 10 to run to the upper storage yard energy storage module 2 through the energy storage operation section 6-3 of the energy storage transport channel 6 and unload the standard gravity block 10, and as the height of the standard gravity block 10 rises, the energy storage power generation vehicle 12 converts the electric energy into the gravitational potential energy of the standard gravity block 10, and completes the storage of the electric energy.
The energy storage generator car 12 runs to the auxiliary transportation channel 7 through the rail section 17 of the upper yard, and the transportation vehicle group 8 also runs to the auxiliary transportation channel 7 through the guide road 9; after the two are hooked in the upper storage yard auxiliary hooking and unhooking chamber 18, the transport vehicle group 8 pulls the energy storage power generation vehicle 12 to travel to the lower storage yard 4 through the auxiliary operation section 7-3 of the auxiliary transportation channel 7, and along with the descending of the height, the gravitational potential energy of the energy storage power generation vehicle 12 and the transport vehicle group 8 is converted into electric energy through the energy storage power generation vehicle 12 and is sent to an internal network, so that the energy storage operation power consumption is recovered, and the energy storage efficiency is improved; and the transport vehicle group 8 reloads the standard gravity blocks 10 on the lower storage yard energy storage module 1, and the energy storage power generation vehicle 12 again pulls the transport vehicle group 14 loaded with the standard gravity blocks 10 to the upper storage yard energy storage module 2, and the steps are repeated so as to realize continuous energy storage.
When the load of a power grid is large, a transport vehicle group 8 of an energy storage unit 1-1 loads a standard gravity block 10 on an upper storage yard energy storage module 2 of an upper storage yard 5 and runs to an energy storage transport section 6, an energy storage power generation vehicle 12 also runs to an energy storage transport channel 6 through an upper storage rail section 17, after the two are hooked by an upper storage yard energy hooking and unhooking chamber 16, a transport vehicle group 14 loaded with the standard gravity block pulls the energy storage power generation vehicle 12 to run to a lower storage yard energy storage module 1 through an energy storage operation section 6-3 of the energy storage transport channel 6 to unload the standard gravity block 10, and the energy storage power generation vehicle 12 converts the gravitational potential energy of the standard gravity block 10 into electric energy along with the descending of the height of the standard gravity block 10, so that power generation is completed; the energy storage power generation car 12 runs to the auxiliary transportation channel 7 through the lower yard steel rail section 13, and the transportation vehicle group 8 also runs to the auxiliary transportation channel 7 through the guide road 9; after the two are hooked in the lower storage yard auxiliary hooking and unhooking chamber 19, the energy storage power generation car 12 pulls the transport car group 8 to drive to the upper storage yard 5 through the auxiliary operation section 7-3 of the auxiliary transport channel 7; and the transport vehicle group 8 reloads the standard gravity blocks 10 on the upper storage yard energy storage module 2, and the transport vehicle group 14 loaded with the standard gravity blocks pulls the energy storage power generation vehicle 12 to the lower storage yard energy storage module 1 again, so that the continuous power generation is realized.
In this embodiment, the energy storage scale of a single energy storage unit is constant, the larger the energy storage scale is, the number of the energy storage units is correspondingly increased, only two energy storage units 1-1 and 1-2 are shown in fig. 2 and 3, and the number of the energy storage units needs to be determined according to the energy storage scale in the implementation process.
On the energy storage transportation channel 6, the transportation vehicle group 8 runs through the load standard gravity block 10, on the auxiliary transportation channel 7, the transportation vehicle group 8 runs in no-load mode, in order to guarantee safety, the running speed of the energy storage power generation vehicle 12 and the transportation vehicle group 8 on the energy storage transportation channel 6 must be slower, and the running speed of the auxiliary transportation channel 7 is relatively higher, so that the energy storage units can share the auxiliary transportation channel 7 under the condition that system running is not influenced, fig. 2 and 3 only show that the energy storage units 1-1 and the energy storage units 1-2 share the auxiliary transportation channel 7 of the energy storage units 1-1, in the specific implementation process, 2-10 energy storage units can share one auxiliary transportation channel, and the purpose of setting in this way is to reduce engineering cost and engineering land occupation.
The solid arrows in fig. 2 show the walking flow of the energy storage power generation car 12, the transport vehicle set 9 and the transport vehicle set 14 loaded with standard gravity blocks during energy storage operation; the dotted arrows in fig. 3 show the walking flow of the energy storage generator car 12, the transport vehicle set 9 and the transport vehicle set 14 loaded with standard gravity blocks during the power generation operation.
As shown in fig. 2, 3, 4, 5 and 6, the upper yard energy storage module 2 and the lower yard energy storage module 1 of the energy storage units 1-1 and 1-2 each comprise a wheeled combined synchronous gantry crane 11, a standard gravity block 10, a guide road 9, an overhead beam 20 and a walking groove 21; when the energy storage operation is started, the standard gravity blocks 10 are all stacked in the lower storage yard energy storage module 1, and after the energy storage operation is finished, the standard gravity blocks 10 are all stacked in the upper storage yard energy storage module 2; when the power generation operation is started, the standard gravity blocks 10 are all stacked on the upper storage yard energy storage module 2, and after the power generation operation is completed, the standard gravity blocks 10 are all stacked on the lower storage yard energy storage module 1.
As shown in fig. 4, 5 and 6, each row of standard gravity blocks 10 in the lower yard energy storage module 1 of the energy storage unit 1-1 is stacked with 3 layers, the number is 24, 6 rows in total, 144 standard gravity blocks 10 in total, the wheel type combined synchronous gantry crane 11 can synchronously hoist 2 rows of 4 rows of 2 layers of standard gravity blocks 10, and one-time hoisting can meet the loading and unloading requirements of 4 standard gravity blocks 10 in each row and two rows of transport vehicle groups 9 in total. If the height difference between the upper yard 5 and the lower yard 4 is 400m and the weight of each standard gravity block 10 is 20 tons, each standard gravity block 10 can store 21.78Kwh of electric energy from the lower yard 4 to the upper yard 5, and 144 standard gravity blocks 10 can store 3135Kwh of electric energy; 1378 standard gravity blocks 10 are needed when implementing one 30000Kwh/h energy storage unit, 23 standard gravity blocks 10 need to be loaded and transported by a transport vehicle group 9 per minute, 1 standard gravity block 10 needs to be lifted, loaded and transported every 2.6 seconds, and the requirements on high lifting and loading and unloading speed and high precision are met; in the implementation, a plurality of wheel type combined synchronous gantry cranes 11 are matched with at least one time of hoisting 2-3 rows and 2-3 lines of standard gravity blocks 10, and at least 2-3 lines of transport vehicle groups 9 capable of loading 23 standard gravity blocks 10 are continuously loaded and unloaded, so that the speed requirements of hoisting, loading and transporting of 30000Kwh/h energy storage units can be met; in the figures 4, 5 and 6, the wheel type combined synchronous gantry crane 11 lifts the standard gravity block in situ, the standard gravity block travels without load, the standard gravity block 10 is transported by jacking the loading and unloading standard through the transport vehicle group 8, the lifting speed, the lifting precision and the lifting safety are improved, the wheel type combined synchronous gantry crane 11 travels in the traveling groove 21 in an unloaded state, and the linear traveling precision of the wheel type combined synchronous gantry crane 11 is controlled, so that the lifting precision is controlled; the standard gravity block 10 is manufactured according to the standard in batches according to the specification and size, the weight and the lifting hole position, and is stacked on the overhead beam 20 to be fixed in position, so that the speed and the precision of lifting and loading and unloading are favorably controlled and improved; as shown in fig. 9, 11 and 13, the tractor 34 of the transport vehicle group 8 and the steering wheel 36 of the transport vehicle 35 run in the groove of the guide road 9, and the steering wheel 36 is provided with small rollers 40, the two small rollers 40 can roll on the inner wall 42 of the groove, the clearance between the outer edge of the small roller 40 and the inner wall 42 of the groove is 1-5mm, which is beneficial to controlling the straight running and steering accuracy of the transport vehicle group 8 on the loading and unloading channel of the standard gravity block so as to control the accuracy of loading and unloading the standard gravity block 10; as shown in fig. 4, a square-section protrusion is arranged in the middle of the top or on one side of the overhead beam 20, which is beneficial to controlling the accuracy of lifting, loading, unloading and stacking standard gravity blocks.
As shown in fig. 13 and 14, the guide road 9 is a concrete or asphalt road, two rows of beams 23 are symmetrically arranged on the center line, the side walls of the beams facing the center line of the road are perpendicular to the road surface, the clear width of the two rows of beams 23 is 10-50cm, the height of the two rows of beams 23 is 5-30cm, a groove with a rectangular cross section is formed between the two beams 23 and the road surface, the steering wheels 36 of the transport vehicle group 8 run in the groove, and the beams 23 are concrete or steel beams and can be prefabricated in a factory.
As shown in fig. 4, 5 and 6, the wheeled combined synchronous gantry crane 11 is composed of an upright column, a cross beam, a traveling mechanism, hoisting devices and the like, the span of the upright column is larger than the width of 2-3 rows of standard gravity blocks, the upright column and the cross beam form a vehicle body, a plurality of hoisting devices are fixed on the cross beam, the number of the hoisting devices is the product of the row number and the column number of the synchronous hoisting standard gravity blocks, the hoisting devices are positioned right above the standard gravity 10, one energy storage module is provided with a plurality of wheeled combined gantry cranes 11, the gantry crane travels in a traveling groove 21 in an unloaded state, after the hoisting of the standard gravity block 10 at a preset position is completed, the gantry crane can be transferred to the position right above the next preset hoisting standard gravity block 10, and the wheeled combined synchronous gantry crane 11 needs to be developed on the basis of the existing equipment.
As shown in fig. 7, 8 and 9, in the present embodiment, two transmission shafts perpendicular to the traveling direction are respectively disposed at the front end and the rear end of the vehicle body of the energy storage power generation vehicle 12, the transmission shafts are respectively a rear end upper transmission shaft 24, a rear end lower transmission shaft 28, a front end upper transmission shaft 26 and a front end lower transmission shaft 30, two ends of each transmission shaft extend out of two sides of the vehicle body, a plane where the rear end upper transmission shaft 24 and the front end upper transmission shaft 26 on the upper portions of the two ends are located is horizontally parallel to a plane where the rear end lower transmission shaft and the front end lower transmission shaft 30 of the two transmission shafts on the lower portions of the two ends are located, two ends of each of the 4 transmission shafts are respectively provided with 1 transmission gear, and the transmission gears are respectively a rear end upper transmission gear 25, a front end upper transmission gear 27, a rear end lower transmission gear 29 and a front end lower transmission gear 31.
The energy storage power generation vehicle 12 is integrated by a motor generator, a walking motor, a gearbox, a gear energy transmission system (not shown), a vehicle body, wheels and the like; in the energy storage operation section 6-3, an energy storage power generation car 12 pulls a transport vehicle group 14 loaded with standard gravity blocks from a lower storage yard 4 to an upper storage yard 5, and a motor generator reversely operates to consume electric energy and convert the electric energy into gravitational potential energy; a transport vehicle group 14 loaded with standard gravity blocks pulls an energy storage power generation vehicle 12 from an upper storage yard 5 to a lower storage yard 4, and a motor generator runs forward to convert gravitational potential energy into electric energy; when the transport vehicle group 8 pulls the energy storage power generation vehicle 12 to walk from an upper storage yard to a lower storage yard in the auxiliary operation section 7-3, the generator operates to convert the self gravitational potential energy of the transport vehicle group 8 and the energy storage power generation vehicle 12 into electric energy, and the running power consumption of the energy storage is recovered; when the motor generator and the generator are in a non-working state, the running motor operates to provide running power for the energy storage generator car 12, and the electric energy consumed by the energy storage generator car, the energy generation car and the running motor is transmitted through a slide wire, wherein the motor generator, the running motor, the gearbox and the gear energy transmission system are all existing equipment.
As shown in fig. 2, 3, 6 and 7, the transport vehicle group 8 is composed of a tractor 34 at two ends and a plurality of transport vehicles 35 in the middle, hooks are arranged at two ends of the tractor 34 and the transport vehicles 35 and are connected with each other through the hooks, and the hooks are existing equipment, such as automatic hitching and unhooking devices; the tractor 34 and the transport vehicle 35 are both provided with a jacking device and a supporting plate, the standard gravity block 10 is loaded and unloaded through the lifting and descending of the jacking device and the supporting plate, the supporting plate is provided with a limiting block to prevent the standard gravity block from sliding when going up and down, the tractor 34 is a power trailer, and the jacking device and the supporting need to be developed in the prior art; the transport vehicle 35 is an unpowered trailer, and is dragged by the tractor 34 and provides power for a jacking device, and the power of the tractor 34 is sourced from a storage battery or a slide wire; the front end and the rear end of the tractor 34 and the transport vehicle 35 are respectively provided with 3 wheels, the total number of the wheels is 6, the center of the two wheels is provided with two steering wheels 36, the two sides of the two wheels are respectively provided with a pair of universal wheels 37, the two sides of an axle 38 of each steering wheel 36 are provided with a support frame 43, the support frames 43 are provided with two small rolling wheels 40, the two small rolling wheels 40 are radially vertical to the steering wheels 36, the steering wheels 36 of the tractor 34 and the transport vehicle 35 run in grooves of the guide road 9, the universal wheels 37 run synchronously on the roads on the two sides, the two small rollers 40 can roll on the inner wall 42 of the groove when the tractor 34 and the transport vehicle 35 run, the clearance between the outer edges of the small rollers and the inner wall of the groove is 1-5mm, the mounting height clearance from the road surface is at least 1cm, and the small rollers 40 have the functions of realizing the automatic steering of the transport vehicle group 9 along with the guide road 9 and controlling the running precision.
As shown in fig. 2 and 3, the energy storage transportation channel 6 and the auxiliary transportation channel 7 both comprise a composite road 3, and the energy storage transportation channel 6 comprises a lower storage yard energy storage module section 6-1, a lower storage yard energy storage regulation section 6-2, an energy storage operation section 6-3, an upper storage yard energy storage regulation section 6-4 and an upper storage yard energy storage module section 6-5 which are connected in sequence; the auxiliary transportation channel 7 comprises a lower storage yard auxiliary storage module section 7-1, a lower storage yard auxiliary adjusting section 7-2, an auxiliary operation section 7-3, an upper storage yard auxiliary adjusting section 7-4 and an upper storage yard auxiliary module section 7-5 which are connected in sequence. The lower yard energy storage hooking and unhooking chamber 15 is arranged at the joint of the lower yard energy storage adjusting section 6-2 and the energy storage operation section 6-3, the upper yard energy storage hooking and unhooking chamber 16 is arranged at the joint of the upper yard energy storage adjusting section 6-4 and the energy storage operation section 6-3, the upper yard auxiliary hooking and unhooking chamber 18 is arranged at the joint of the upper yard auxiliary adjusting section 7-4 and the auxiliary operation section 7-3, and the lower yard auxiliary hooking and unhooking chamber 19 is arranged at the joint of the lower yard auxiliary adjusting section 7-2 and the auxiliary operation section 7-3. In the embodiment, the hook and unhook room is used for realizing connection and disconnection of the energy storage power generation car and the transport vehicle group.
As shown in fig. 2, 3 and 13, the composite road 3 is composed of a guide road 9 and rails 41, two rails 41 are symmetrically laid on two sides of the guide road 9, in the energy storage operation section 6-3 and the auxiliary operation section 7-3, the rails 41 are laid on the road surface of the guide road 9, and the rail bottoms are flush with the road surface; the rails 41 on other sections of the energy storage transport passage 6 and the auxiliary transport passage 7 are laid on the top surfaces of the rails in the grooves and are flush with the road surface of the guide road 9, the energy storage power generation car 12 walks on the rails 41, mainly in order to improve the horizontal accuracy of the energy storage transport car 12 walking on the energy storage operation section 6-3 and the auxiliary operation section 7-3, the transport car group 8 and the transport car group 14 loaded with standard blocks walk on the guide road 9, the usage amount of the rails is reduced, the turning radius of the transport car group 8 is reduced at the same time, and therefore the construction land is reduced. In this embodiment, the guide path 9 is circular, the rail 41 is circular, and the guide path and the rail are partially combined to form a composite path.
As shown in fig. 2 and 3, the upper yard energy storage module section 6-5, the lower yard energy storage module section 6-1, the upper yard auxiliary module section 7-5 and the lower yard auxiliary module section 7-1 are respectively arranged at two sides of the upper energy storage module 2 and the lower energy storage module 1 and are perpendicular to the direction of the guide road 9 of the energy storage modules, the guide road branching and turning of the composite road is connected with the guide road 9 of the upper yard energy storage module 2 and the lower yard energy storage module 1, and the transport vehicle group 9 or the transport vehicle group 14 loaded with standard gravity blocks enters and exits the lower yard energy storage module 1 and the upper yard energy storage module 2 through the guide road 9 to load and unload the standard gravity blocks.
As shown in fig. 2 and 3, at least two transport vehicle groups 8 and two energy storage power generation vehicles 12 are parked in the upper storage yard energy storage adjusting section 6-4, the lower storage yard energy storage adjusting section 6-2, the upper storage yard auxiliary adjusting section 7-4 and the lower storage yard auxiliary adjusting section 7-2 as standby, so that the normal operation of an energy storage system is not influenced when a short-time minor fault is eliminated.
As shown in fig. 2, 3, 7, 8 and 9, the energy storage operation section 6-3 and the auxiliary operation section 7-3 are respectively connected with the upper yard energy storage regulation section 6-4, the lower yard energy storage regulation section 6-2, the upper yard auxiliary regulation section 7-4 and the lower yard auxiliary regulation section 7-2, the gradient is 15-60 degrees, the energy storage operation section 6-3 and the auxiliary operation section 7-3 further comprise racks, a composite road, an energy storage and power generation slide line and a support structure 39, a pair of racks are respectively arranged on the upper side and the lower side of the support structure 39, the total number of the racks is 4, the tooth surface of the lower rack 33 is upward, the tooth surface of the upper rack 32 is downward, the upper rack 32 is opposite to the lower rack 33 in parallel, the upper rack 32 is meshed with the rear end upper transmission gear 25 and the front end upper transmission gear 27 at both ends of the energy storage power generation vehicle, the lower rack 33 is meshed with the rear end lower transmission gear 29 at both ends of the energy storage power generation vehicle, and the power generation vehicle, The transmission gear 31 at the lower part of the front end is meshed, the composite road is arranged at the bottom of the supporting structure, the energy storage power generation vehicle walks on the steel rail, and the transmission gear is meshed with the racks of the energy storage operation section 6-3 and the auxiliary operation section 7-3, so that the walking torque is increased, the planting operation capacity is improved, and the normal operation of energy storage and power generation transmission is ensured.
As shown in fig. 2 and 3, the upper yard energy storage hooking and unhooking chamber 16 and the lower yard energy storage hooking and unhooking chamber 15 are respectively located at the junctions of the energy storage operation section 7-3, the upper yard energy storage regulating section 7-4 and the lower yard energy storage regulating section 7-2; the upper yard auxiliary hooking and unhooking chamber 18 and the lower yard auxiliary hooking and unhooking chamber 19 are respectively positioned at the joint of the auxiliary operation section 7-3 and the upper yard auxiliary adjusting section 7-4 and the lower yard auxiliary adjusting section 7-2; the upper storage yard energy storage hook and unhook chamber 16 and the lower storage yard energy storage hook and unhook chamber 15 are used for hooking and unhooking the energy storage power generation car 12 and the transport car group 14 loaded with standard gravity blocks, are used for setting the position of a transmission gear of the energy storage power generation car 12 to enable the transmission gear to be meshed with a rack of the energy storage operation section 6-3, and are used for checking potential safety hazards of main operation components of the energy storage power generation car 12 and the transport car group 8; the upper storage yard auxiliary hooking and unhooking chamber 18 and the lower storage yard auxiliary hooking and unhooking chamber 19 are used for hooking and unhooking the energy storage power generation car 12 and the transport car group 8, setting the position of a transmission gear of the energy storage power generation car 12, enabling the transmission gear to be meshed with racks of the auxiliary energy storage operation section 7-3, and checking potential safety hazards of main operation components of the energy storage power generation car 12 and the transport car group 8.
In this embodiment, an operation method of the gravity module energy storage system is further provided, and based on the gravity module energy storage system, the operation method includes an energy storage operation state and a power generation operation state.
As shown in fig. 2, the energy storage operation state includes the following steps:
a1, in a lower yard 4, standard gravity blocks 10 are stacked on an overhead beam 20 as required, a transport vehicle group 8 positioned on an auxiliary module section 7-1 of the lower yard turns to an energy storage module 1 of the lower yard, drives to a standard gravity block loading and unloading channel of the energy storage module 1 of the lower yard through a guide road 9, an energy storage power generation vehicle 12 turns to a steel rail section 13 of the lower yard through the auxiliary module section 7-1 of the lower yard and drives to an energy storage module section 6-1 of the lower yard, and stops waiting at the section 7-1 of the energy storage module 7-1 of the lower yard close to an energy storage adjusting section 6-2 of the lower yard;
a2, before a transport vehicle group 8 drives into a standard gravity block loading and unloading channel, a wheel type combined synchronous gantry crane 11 synchronously lifts other layers of standard gravity blocks 10 except the bottom layer which are scheduled to be loaded, lifts by 3-10cm, and keeps suspended;
a3, stopping the transport vehicle group 8 under a standard gravity block 10 which is scheduled to be loaded, disengaging the jacking bottom layer standard gravity block 10 from the overhead beam 20, maintaining the jacking state, exiting the lower storage yard energy storage module 1, descending and jacking, completing the loading of the standard gravity block 10 and traveling to the lower storage yard energy storage module section 6-1;
a4, the wheel type combined synchronous gantry crane 11 descends and stacks the other layers of standard gravity blocks on the overhead beam 20;
a5, in the lower storage yard energy storage module section 1, before the energy storage power generation car 12 is in front of the transport car group 14 loaded with the standard gravity block, the two pass through the energy storage adjusting section 6-2 and then drive into the lower storage yard energy storage hook and unhook chamber 15, after the hook connection and the gear setting of the energy storage power generation car 12 are completed, the power generation motor of the energy storage power generation car 12 is started, the transport car group 14 loaded with the standard gravity block is dragged to drive to the upper storage yard energy hook and unhook chamber 16 on the energy storage operation section 6-3, and along with the increase of the driving height of the energy storage power generation car 12, the electric energy is converted into the gravitational potential energy of the standard gravity block 10 through the power generation motor, so that the storage of the electric energy is realized;
a6, driving the energy storage power generation car 12 into an upper yard energy storage adjusting section 6-3 after the energy storage power generation car 12 is unhooked in an upper yard energy storage hook unhooking chamber 16 and a transport car group 14 loaded with standard gravity blocks, turning the energy storage power generation car 12 through the upper yard energy storage adjusting section 6-4 and the upper yard energy storage module section 6-5 to drive into an upper yard steel rail section 17 and drive to an upper yard auxiliary module section 7-5, and stopping waiting before driving into the upper yard auxiliary module section 7-5;
a7, a transport vehicle group 14 loaded with standard gravity blocks turns to the upper storage yard energy storage module 2 through the upper storage yard energy storage adjusting section 6-4 and the upper storage yard energy storage module section 6-5, and then the transport vehicle runs to a standard gravity block loading and unloading channel of the upper storage yard energy storage module 2 through a guide road 9;
a8, before a transport vehicle group 14 loaded with standard gravity drives into the upper yard energy storage module 2, synchronously hoisting each layer of standard gravity blocks 10 at the preset unloading position by a wheel type combined synchronous gantry crane 11, hoisting and lifting the standard gravity blocks by 3-10cm higher than the standard gravity blocks, and keeping the standard gravity blocks suspended;
a9, jacking the standard gravity block 10 by a transport vehicle group 14 loaded with the standard gravity block, keeping the jacking state, driving into the upper storage yard energy storage module 2, stopping at the preset unloading standard gravity block 10 position, descending and jacking, wherein two ends of the standard gravity block are supported on an overhead beam 20, completing the unloading of the standard gravity block 10 and driving to the upper storage yard auxiliary module section 7-5;
a10, a wheel type combined synchronous gantry crane 11 descends and stacks the lifted standard gravity blocks 10 on the unloaded standard gravity blocks 10;
a11, driving a transport vehicle group 8 into an upper storage yard auxiliary module section 7-5, starting an energy storage power generation vehicle 12, driving the transport vehicle group 8 into an upper storage yard auxiliary hook and unhook room 18 through an upper storage yard auxiliary adjusting section 7-4 along with the transport vehicle group 8, driving the transport vehicle group 8 in front of the transport vehicle group, driving the energy storage power generation vehicle 12 to drive a lower storage yard auxiliary hook and unhook room 19 on an auxiliary operation section 7-3 after the energy storage power generation vehicle 12 and the energy storage power generation vehicle 12 finish gear setting, starting and operating a generator of the energy storage power generation vehicle 12, and converting the self gravitational potential energy of the energy storage power generation vehicle 12 and the transport vehicle group 8 into electric energy through the generator of the energy storage power generation vehicle 12 along with the reduction of the running height of the energy storage power generation vehicle 12, sending the electric energy into an internal network, recovering the running power consumption of energy storage, reducing the running power consumption of energy storage and improving the energy storage efficiency;
a12, hooking and unhooking the lower yard auxiliary hooking chamber 19, turning the energy storage generator car 12 and the transport car group 8 to finish unhooking, wherein the transport car group 8 turns to the lower yard energy storage module 1 through the lower yard auxiliary adjusting section 7-2, turns to a standard gravity block loading and unloading channel of the lower yard energy storage module 1 through the guide road 9, the energy storage generator car 12 turns to the lower yard steel rail section 13 through the lower yard auxiliary module section 7-1 and turns to the lower yard energy storage module section 6-1, and stops waiting at the lower yard energy storage module section 6-1 close to the lower yard energy storage adjusting section 6-2; thus, one energy storage operation cycle is completed, and the steps A2-A12 are continuously repeated for multiple times by a certain number of energy storage power generation cars 12 and a transport vehicle group 8, so that continuous energy storage of one energy storage unit is realized, and high-capacity and long-time energy storage is realized by synchronous operation of a plurality of energy storage units;
a13, the standard gravity blocks of the upper storage yard energy storage module 2 and the lower storage yard energy storage module 1 are hoisted, loaded and unloaded sequentially when the energy is stored, the lower storage yard 4 sequentially hoists and loads the standard gravity blocks from the lower storage yard energy storage module section 6-1 to the lower storage yard auxiliary module section 7-1, and the upper storage yard 5 sequentially hoists and unloads the standard gravity blocks from the upper storage yard auxiliary module section 7-5 to the upper storage yard energy storage module section 6-5.
As shown in fig. 3, the power generation operation state includes the steps of:
b1, turning the transport vehicle group 8 on the upper storage yard auxiliary module section 7-5 to the upper storage yard energy storage module 1, and driving to a standard gravity block loading and unloading channel of the upper storage yard energy storage module 1 through a guide road 9;
b2, before the transport vehicle group 8 drives into the loading and unloading channel, the wheel type combined synchronous gantry crane 11 synchronously lifts the standard gravity blocks 10 of other layers except the bottom layer which are scheduled to be loaded, lifts by 3-10cm, and keeps suspended;
b3, the transport vehicle group 8 stops under the standard gravity block 10 which is scheduled to be loaded, the jacking bottom layer standard gravity block 10 is disengaged from the overhead beam 20, the jacking state is maintained, the upper storage yard energy storage module 1 is driven out, the lower jacking is carried out, the loading of the standard gravity block 10 is completed, and the upper storage yard energy storage module section 6-5 is driven;
b4, the wheel type combined synchronous gantry crane 11 descends and stacks the other layers of standard gravity blocks 10 on the overhead beam 20;
b5, the energy storage power generation vehicle 12 turns to drive into the upper yard steel rail section 17 through the upper yard auxiliary module section 7-5 and drives to the upper yard energy storage module section 6-5, the upper yard steel rail section 17 close to the upper yard energy storage module section 6-5 stops, the transport vehicle group 14 to be loaded with the standard gravity block drives into the upper yard energy storage module section 6-5, the energy storage power generation vehicle 12 starts, and the transport vehicle group 14 to be loaded with the standard gravity block drives into the upper yard energy storage unhooking chamber 16 through the upper yard energy storage adjusting section 6-4;
b6, the transport vehicle set 14 loaded with the standard gravity block is in front, the energy storage power generation vehicle 12 is behind, the transport vehicle set 14 loaded with the standard gravity block drags the energy storage power generation vehicle 12 to drive to the lower storage yard energy storage hook and unhook room 15 on the energy storage operation section 6-3 after the hook connection and the gear setting of the energy storage power generation vehicle 12 are completed, a power generation motor of the energy storage power generation vehicle 12 is started, and the gravitational potential energy of the standard gravity block 10 is converted into electric energy through the power generation motor along with the reduction of the running height of the energy storage power generation vehicle 12, so that power generation is realized;
b7, in the lower yard energy storage hook unhooking chamber 15, the energy storage power generation car 12 and the transport car group 14 loaded with standard gravity blocks finish unhooking and drive into the lower yard energy storage adjusting section 6-2, the energy storage power generation car drives into the lower yard steel rail section 13 through the lower yard energy storage adjusting section 6-2 and the lower yard energy storage module section 6-1 in a turning way and drives to the lower yard auxiliary module section 7-1, and the lower yard auxiliary module section 7-1 before the lower yard auxiliary adjusting section 7-2 stops waiting;
b8, the transport vehicle group 14 loaded with the standard gravity blocks turns to the lower storage yard energy storage module 1 through the lower storage yard energy storage adjusting section 6-2 at the lower storage yard energy storage module section 6-1, and then drives to the loading and unloading channel of the standard gravity blocks of the lower storage yard energy storage module 1 through the guide road 9;
b9, synchronously hoisting each layer of standard gravity block 10 at the preset unloading position by a wheel type combined synchronous gantry crane 11 when a transport vehicle group 14 loaded with standard gravity drives into the front 1 of the upper storage yard energy storage module, and hoisting and lifting the standard gravity block by 3-10cm higher than the standard gravity block to keep suspended;
the transport vehicle set 14 loaded with the standard gravity block jacks the standard gravity block, drives into the lower storage yard energy storage module 1 in a maintained jacking state, stops at the position of a preset unloading standard gravity block 10, descends and jacks, supports two ends of the standard gravity block 10 on an overhead beam 20, finishes unloading of the standard gravity block 10 and drives into the lower storage yard auxiliary module section 7-1;
b10, the wheel type combined synchronous gantry crane 11 descends and stacks the lifted layers of standard gravity blocks 10 on the unloaded standard gravity blocks 10;
b11, in the lower storage yard auxiliary module section 7-1, the energy storage power generation car 12 is in front, the transport car group 8 is behind, and the transport car group is driven into the lower storage yard auxiliary hook and unhook room 19 through the auxiliary adjusting section 7-2, after hooking is completed, the energy storage power generation car 12 starts to drive the electric traction transport car group 8 to drive to the upper storage yard auxiliary hook and unhook room 18 on the auxiliary operating section 7-3;
b12, the upper yard is assisted to hang the unhooking room 18, the energy storage power generation car 12 and the transport vehicle group 8 finish unhooking, the energy storage power generation car 12 turns to drive into the upper yard steel rail section 17 and drive to the upper yard energy storage module section 6-5 through the upper yard auxiliary adjusting section 7-4 and the upper yard auxiliary module section 7-5, and the upper yard rail section 17 close to the upper yard energy storage module section 6-5 stops waiting;
b13, the transport vehicle group 8 drives into the upper storage yard auxiliary module section 6-5 through the upper storage yard auxiliary adjusting section 6-4, so that one power generation cycle is completed, a certain number of energy storage power generation vehicles 12 and the transport vehicle group 8 continuously circulate for multiple times in the steps B1-B12 to realize continuous power generation of one energy storage unit, and a plurality of energy storage units synchronously run to realize high-capacity and long-time power generation;
and B14, the standard gravity blocks 10 of the upper storage yard energy storage module 2 and the lower storage yard energy storage module 1 are hoisted, loaded and unloaded sequentially during power generation operation, wherein the standard gravity blocks are hoisted and loaded sequentially by the upper storage yard from the upper storage yard energy storage module section 6-5 to the upper storage yard auxiliary module section 7-7, and the standard gravity blocks are hoisted and unloaded sequentially by the lower storage yard from the lower storage yard auxiliary module section 7-1 to the lower storage yard energy storage and transportation unit section 6-1.
In this embodiment, palletizing is from the bottom, gradually stacked and elevated, and also gradually unloaded, as opposed to conventional palletizing from top to bottom, where goods are placed and taken.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (14)

1. A gravity module energy storage system, comprising: the system comprises an upper storage yard, a lower storage yard and a plurality of energy storage units; the energy storage unit comprises a lower storage yard energy storage module, an upper storage yard energy storage module, an energy storage power generation car, a transport car group, an energy storage transport channel, an auxiliary transport channel, a lower storage yard energy storage hook and unhook chamber, an upper storage yard auxiliary hook and unhook chamber, a lower storage yard auxiliary hook and unhook chamber, a guide road, an upper storage yard steel rail section and a lower storage yard steel rail section; the energy storage transportation channel and the auxiliary transportation channel are connected with the guide roads of the lower storage yard energy storage module and the upper storage yard energy storage module through the guide roads to form an annular channel for the transportation vehicle group to walk; the energy storage transportation channel and the auxiliary transportation channel are connected with the upper storage yard steel rail section and the lower storage yard steel rail section to form an annular channel which surrounds the lower storage yard energy storage module and the upper storage yard energy storage module and is used for the energy storage power generation vehicle to walk.
2. The gravity module energy storage system according to claim 1, wherein 2-10 of said energy storage units share said auxiliary transportation channel.
3. The gravity module energy storage system according to claim 1, wherein the upper yard energy storage module and the lower yard energy storage module each comprise a wheeled union synchronous gantry crane, a standard gravity block, a guide way, overhead beams and a walking groove, the overhead beams are arranged in a row at regular intervals in a straight line and at intervals, a plurality of rows of the overhead beams are aligned in parallel with each other, the standard gravity blocks are sequentially stacked on the overhead beam in rows in an overhead manner, the number of stacked layers in each row is not less than 3, the guide road is arranged under each row of the standard gravity blocks and in the middle of the two rows of the overhead beams, the overhead beam and the guide road form a loading and unloading channel of the standard gravity block, walking grooves are symmetrically arranged on two sides of every 3-4 rows of the standard gravity block, and the wheel type combined synchronous gantry crane walks in the walking grooves.
4. The gravity module energy storage system according to claim 3, wherein the standard gravity block is a hollow cuboid or cube made of reinforced concrete or steel plates, which can be filled with one or more of crushed stone, gypsum, construction waste and slag with a relatively high density, and has an average mass per cube of more than 2 tons, two pairs of L-shaped lifting holes are symmetrically arranged on both sides of the bottom surface of the standard gravity block along the length direction of the guide road, and any one standard gravity block can bear the weight of at least 2 standard gravity blocks stacked on the standard gravity block in an overhead manner.
5. The gravity module energy storage system according to claim 3, wherein the guide road is a concrete or asphalt road and the center line is symmetrically provided with two rows of beams, the side wall of the beam facing the center line of the road is vertical to the road surface, the clear width of the two rows of beams is 10-50cm, the height of the two rows of beams is 5-30cm, the two beams and the road surface between the two beams form a groove with a rectangular cross section, the steering wheels of the transport vehicle group run in the groove, and the beams are concrete or steel beams.
6. The gravity module energy storage system according to claim 1, wherein the front end and the rear end of the vehicle body of the energy storage power generation vehicle are respectively provided with two transmission shafts which are vertical to the walking direction, the transmission shafts extend out of two sides of the vehicle body, the planes of the two transmission shafts on the upper parts of the two ends are horizontally parallel to the planes of the two transmission shafts on the lower parts of the two ends, and two ends of 4 transmission shafts are respectively provided with 1 transmission gear.
7. The gravity module energy storage system according to claim 6, wherein the energy storage power generation vehicle comprises a power generation motor, a generator, a walking motor, a transmission gear, a gear transmission system, a gearbox, a vehicle body and wheels, wherein 2 transmission shafts at one end of the energy storage power generation vehicle are connected with the power generation motor through the gear transmission system and the gearbox, and 2 transmission shafts at the other end of the energy storage power generation vehicle are connected with the generator and the walking motor through the gear transmission system and the gearbox; when the energy storage power generation car pulls a transport car group loaded with standard gravity blocks to drive from a lower storage yard to an upper storage yard in an energy storage operation section, the motor generator reversely operates to consume electric energy and convert the electric energy into gravitational potential energy; when a transport vehicle group loaded with standard gravity blocks pulls an energy storage power generation vehicle to drive from an upper storage yard to a lower storage yard in an energy storage operation section, a motor generator operates in a forward direction to convert gravitational potential energy into electric energy; when the transport vehicle group pulls the energy storage power generation vehicle to drive from an upper storage yard to a lower storage yard in the auxiliary operation section, the generator operates to convert the self gravitational potential energy of the transport vehicle group and the energy storage power generation vehicle into electric energy, and the operation power consumption of energy storage is recovered; when the motor generator and the generator are in a non-working state, the walking motor operates to provide walking power for the energy storage generator car.
8. The gravity module energy storage system according to claim 5, wherein the transportation vehicle group comprises two ends of the tractor and a plurality of middle transportation vehicles, the tractor and the transportation vehicles are provided with hooks at two ends and are connected with each other through the hooks, the transportation vehicles are unpowered trailers, each tractor and the front and back ends of the transportation vehicles are respectively provided with 3 wheels and a total of 6 wheels, the tractor and the body of the transportation vehicles are provided with two steering wheels in the middle, and a pair of universal wheels is arranged at two sides.
9. The gravity module energy storage system according to claim 8, wherein two sides of the axle of the steering wheel are provided with a support frame, the support frame is provided with small rolling wheels, the two small rolling wheels are radially vertical to the steering wheel, the steering wheel of the tractor and the transport vehicle runs in the groove of the guide road, the universal wheel synchronously runs on the roads on two sides, the two small rollers can roll on the inner wall of the groove when the tractor and the transport vehicle run, the clearance between the outer edge of each small roller and the inner wall of the groove is 1-5mm, and the mounting height is at least 1cm from the clearance of the road surface.
10. The gravity module energy storage system according to any one of claims 1-9, wherein the energy storage transport corridor and the auxiliary transport corridor each comprise a composite road, the energy storage transport corridor comprises a lower yard energy storage module section, a lower yard energy storage regulation section, an energy storage operation section, an upper yard energy storage regulation section, an upper yard energy storage module section, and the auxiliary transport corridor comprises a lower yard auxiliary energy storage module section, a lower yard auxiliary regulation section, an auxiliary operation section, an upper yard auxiliary regulation section, an upper yard auxiliary module section; the lower storage yard energy storage hooking and unhooking chamber is arranged at the joint of the lower storage yard energy storage adjusting section and the energy storage operation section, the upper storage yard energy storage hooking and unhooking chamber is arranged at the joint of the upper storage yard energy storage adjusting section and the energy storage operation section, the upper storage yard auxiliary hooking and unhooking chamber is arranged at the joint of the upper storage yard auxiliary adjusting section and the auxiliary operation section, and the lower storage yard auxiliary hooking and unhooking chamber is arranged at the joint of the lower storage yard auxiliary adjusting section and the auxiliary operation section.
11. The gravity module energy storage system according to claim 10, wherein the composite road comprises a guide road and steel rails, two steel rails are symmetrically laid on two sides of the guide road, the energy storage generator car runs on the steel rails, and the transport car set loaded with standard blocks run on the guide road.
12. The gravity module energy storage system according to claim 11, wherein the upper yard energy storage module section, the lower yard energy storage module section, the upper yard auxiliary module section, the lower yard auxiliary module section, and the guide roads respectively arranged at two sides of the upper yard energy storage module and the lower yard energy storage module and perpendicular to the energy storage modules, wherein the guide road of the composite road is branched and connected with the guide roads of the energy storage modules of the upper yard energy storage module and the lower yard energy storage module, and the steel rails of the composite road are connected with the upper steel rail section and the lower steel rail section.
13. The gravity module energy storage system according to claim 6, wherein the horizontal slope of the energy storage operation section and the auxiliary operation section is 15-60 degrees, the gravity module energy storage system further comprises racks, an energy storage and power generation slide line and a support structure, a pair of racks is respectively arranged on the upper side and the lower side of the support structure, the number of the racks is 4, the tooth surface of the lower rack is upward, the tooth surface of the upper rack is downward, the upper rack is opposite to the lower rack in parallel, the upper rack is meshed with the transmission gears on the upper parts of the two ends of the energy storage and power generation vehicle, the lower rack is meshed with the transmission gears on the lower parts of the two ends of the energy storage and power generation vehicle, and a composite road is arranged on the bottom of the support structure.
14. The operation method of the gravity module energy storage system is characterized by comprising an energy storage operation state and a power generation operation state; the energy storage operation state comprises the following steps:
a1, in a lower storage yard, standard gravity blocks are stacked on overhead beams as required, a transport vehicle group positioned on the auxiliary module section of the lower storage yard turns to the energy storage module of the lower storage yard, and drives to a loading and unloading channel of the standard gravity blocks of the energy storage module of the lower storage yard through a guide road, an energy storage power generation vehicle drives to a steel rail section of the lower storage yard and drives to the energy storage module section of the lower storage yard through the turning of the auxiliary module section of the lower storage yard, and stops waiting at the energy storage module section of the lower storage yard close to the energy storage adjusting section of the lower storage yard;
a2, before the transport vehicle set drives into the standard gravity block loading and unloading channel, the wheel type combined synchronous gantry crane synchronously lifts the other layers of standard gravity blocks which are scheduled to be loaded and are except the bottom layer, the lifting height is 3-10cm, and the standard gravity blocks are kept suspended;
a3, stopping the transport vehicle group under a standard gravity block to be loaded, disengaging the jacking bottom layer standard gravity block from the overhead beam, maintaining the jacking state, moving out of the lower storage yard energy storage module, descending and jacking, completing the loading of the standard gravity block and moving to the lower storage yard energy storage module section;
a4, lowering and stacking the other layers of standard gravity blocks lifted by the wheel type combined synchronous gantry crane on the overhead beam;
a5, in the lower storage yard energy storage module section, before a transport vehicle set loading standard gravity blocks, an energy storage power generation vehicle drives into a lower storage yard energy storage hook and unhook chamber through an energy storage adjusting section, after hook connection and gear setting of the energy storage power generation vehicle are completed, a power generation motor of the energy storage power generation vehicle is started, the transport vehicle set loading the standard gravity blocks is dragged to drive to an upper storage yard energy storage hook and unhook chamber on the energy storage operation section, and along with the increase of the running height of the energy storage power generation vehicle, electric energy is converted into gravitational potential energy of the standard gravity blocks through the power generation motor, so that the storage of the electric energy is realized;
a6, driving the energy storage power generation car into the upper yard energy storage adjusting section after the energy storage power generation car and the transport car group loaded with the standard gravity block are unhooked, driving the energy storage power generation car into the upper yard steel rail section through the upper yard energy storage adjusting section and the upper yard energy storage module section, driving the energy storage power generation car to the upper yard auxiliary module section, and stopping waiting before driving into the upper yard auxiliary module section;
a7, turning a transport vehicle group loaded with standard gravity blocks to an upper storage yard energy storage module through an upper storage yard energy storage adjusting section, and driving to a standard gravity block loading and unloading channel of the upper storage yard energy storage module through a guide road;
a8, before a transport vehicle group loaded with standard gravity drives into an upper storage yard energy storage module, synchronously hoisting each layer of standard gravity block at a preset unloading position by a wheel type combined synchronous gantry crane, and hoisting the standard gravity block by the crane to a height of 3-10cm higher than that of the standard gravity block to keep suspended;
a9, jacking the standard gravity block by a transport vehicle group loaded with the standard gravity block, driving the standard gravity block into an upper storage yard energy storage module in a jacking state, stopping at a preset unloading standard gravity block position, descending and jacking, supporting two ends of the standard gravity block on an overhead beam, completing unloading of the standard gravity block and driving the standard gravity block to an upper storage yard auxiliary module section;
a10, lowering and stacking the lifted standard gravity blocks on the unloaded standard gravity blocks by a wheel type combined synchronous gantry crane;
a11, driving a transport vehicle group into an upper storage yard auxiliary module section, starting an energy storage power generation vehicle, driving the transport vehicle group into an upper storage yard auxiliary hooking and unhooking chamber through an upper storage yard auxiliary adjusting section, driving the transport vehicle group in front of the transport vehicle group, driving the energy storage power generation vehicle in back of the transport vehicle group after the transport vehicle group and the energy storage power generation vehicle complete setting of a hook and an energy storage power generation vehicle gear, driving the energy storage power generation vehicle to drive the transport vehicle to a lower storage yard auxiliary hooking and unhooking chamber on an auxiliary operation section, starting and operating a generator of the energy storage power generation vehicle, converting self gravitational potential energy of the energy storage power generation vehicle and the transport vehicle group into electric energy through the generator of the energy storage power generation vehicle along with the reduction of the driving height of the energy storage power generation vehicle, sending the electric energy into an intranet, and recovering the operating power consumption of energy storage;
a12, hanging a unhooking chamber in the lower storage yard in an auxiliary manner, unhooking the energy storage power generation car and the transport car set, turning the transport car set to the lower storage yard energy storage module through the lower storage yard auxiliary adjusting section in the lower storage yard auxiliary module section, driving the transport car set to a standard gravity block loading and unloading channel of the lower storage yard energy storage module through a guide road, turning the energy storage power generation car through the lower storage yard auxiliary module section to drive into the lower storage yard steel rail section and drive the energy storage power generation car to the lower storage yard energy storage module section, and stopping waiting in the lower storage yard energy storage module section close to the lower storage yard energy adjusting section; thus, one energy storage operation cycle is completed, and the steps A2-A12 are repeated for a plurality of times continuously by a certain number of energy storage power generation cars and transport vehicle groups, so that continuous energy storage of one energy storage unit is realized, and high-capacity and long-time energy storage is realized by synchronous operation of a plurality of energy storage units;
a13, during energy storage operation, the standard gravity blocks of the upper storage yard energy storage module and the lower storage yard energy storage module are lifted, loaded and unloaded in sequence, wherein the lower storage yard lifts and loads the standard gravity blocks from the lower storage yard energy storage module section to the lower storage yard auxiliary module section in sequence, and the upper storage yard lifts and unloads the standard gravity blocks from the upper storage yard auxiliary module section to the upper storage yard energy storage module section in sequence;
the power generation operation state includes the steps of:
b1, turning the transport vehicle group on the upper storage yard auxiliary module section to the upper storage yard energy storage module, and driving the transport vehicle group to a standard gravity block loading and unloading channel of the upper storage yard energy storage module through a guide road;
b2, before the transport vehicle set drives into the loading and unloading channel, the wheel type combined synchronous gantry crane synchronously lifts the standard gravity blocks of other layers except the bottom layer which are preset to be loaded, the lifting is carried out by 3-10cm, and the standard gravity blocks are kept suspended;
b3, stopping the transport vehicle group under the standard gravity block to be loaded, disengaging the jacking bottom layer standard gravity block from the overhead beam, maintaining the jacking state, moving out of the upper storage yard energy storage module, descending and jacking to complete the loading of the standard gravity block and moving to the upper storage yard energy storage module section;
b4, lowering and stacking the other layers of standard gravity blocks lifted by the wheel type combined synchronous gantry crane on the overhead beam;
b5, the energy storage power generation car drives into the upper storage yard steel rail section through the upper storage yard auxiliary module section in a steering way and drives to the upper storage yard energy storage module section, the energy storage power generation car stops at the upper storage yard steel rail section close to the upper storage yard energy storage module section, the transport car group to be loaded with the standard gravity block drives into the upper storage yard energy storage module section, the energy storage power generation car starts, and the transport car group following the loaded standard gravity block drives into the upper storage yard energy storage hook-and-unhook room through the upper storage yard energy storage adjusting section;
b6, the carrier vehicle group loaded with the standard gravity block is in front, the energy storage power generation vehicle is in back, the carrier vehicle group loaded with the standard gravity block drags the energy storage power generation vehicle to drive to the lower storage yard energy storage hook and unhook room on the energy storage operation section after the hook connection and the gear setting of the energy storage power generation vehicle are completed, a power generation motor of the energy storage power generation vehicle is started, and the gravitational potential energy of the standard gravity block is converted into electric energy through the power generation motor along with the reduction of the driving height of the energy storage power generation vehicle, so that the power generation is realized;
b7, in the lower storage yard energy storage hook unhooking chamber, an energy storage power generation car and a transport vehicle group loaded with standard gravity blocks finish unhooking and drive into the lower storage yard energy storage adjusting section, the energy storage power generation car drives into the lower storage yard steel rail section through the lower storage yard energy storage adjusting section and the lower storage yard energy storage module section in a steering mode and drives to the lower storage yard auxiliary module section, and the lower storage yard auxiliary module section is stopped and waits before the lower storage yard auxiliary adjusting section;
b8, the transport vehicle group loaded with the standard gravity block turns to the lower storage yard energy storage module through the lower storage yard energy storage adjusting section, and drives to the lower storage yard energy storage module standard gravity block loading and unloading channel through the guide road;
b9, before the transport vehicle group loaded with standard gravity drives into the storage yard energy storage module, synchronously hoisting each layer of standard gravity block at the preset unloading position by a wheel type combined synchronous gantry crane, hoisting the standard gravity block by the crane to a height of 3-10cm higher than that of the standard gravity block, and keeping the standard gravity block suspended;
the transportation vehicle group loaded with the standard gravity block jacks the standard gravity block, drives into the lower storage yard energy storage module in a maintained jacking state, stops at a preset unloading standard gravity block position, descends and jacks, and supports two ends of the standard gravity block on the overhead beam to finish unloading of the standard gravity block and drive into the lower storage yard auxiliary module section;
b10, descending and stacking the lifted layers of standard gravity blocks on the unloaded standard gravity blocks by using a wheel type combined synchronous gantry crane;
b11, in the lower storage yard auxiliary module section, the energy storage power generation car is in front, the transport car group is behind, and the transport car group drives into the lower storage yard auxiliary hook and unhook chamber through the auxiliary adjusting section, after the hooking is completed, the energy storage power generation car starts to drive the electric traction transport car group to drive towards the upper storage yard auxiliary hook and unhook chamber on the auxiliary operating section;
b12, an upper yard auxiliary hook-off room is hung, the energy storage power generation car and the transport vehicle unit finish hook-off, the energy storage power generation car drives into the upper yard steel rail section and drives to the upper yard energy storage module section through the upper yard auxiliary adjusting section and the upper yard auxiliary module section, and the upper yard rail section close to the upper yard energy storage module section stops waiting;
b13, the transport vehicle group drives into the upper storage yard auxiliary module section through the upper storage yard auxiliary adjusting section to complete one power generation cycle, and the steps of B1-B12 are continuously circulated for multiple times by a certain number of energy storage power generation vehicles and the transport vehicle group, so that continuous power generation of one energy storage unit is realized, and high-capacity and long-time power generation is realized by synchronous operation of a plurality of energy storage units;
and B14, the standard gravity blocks of the upper storage yard energy storage module and the lower storage yard energy storage module are hoisted, loaded and unloaded sequentially during power generation operation, wherein the standard gravity blocks are hoisted and loaded sequentially by the upper storage yard from the upper storage yard energy storage module section to the upper storage yard auxiliary module section, and the standard gravity blocks are hoisted and unloaded sequentially by the lower storage yard from the lower storage yard auxiliary module section to the lower storage yard energy storage and transportation unit section.
CN202210292631.XA 2022-03-23 2022-03-23 Gravity module energy storage system and operation method Pending CN114649819A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024069221A1 (en) * 2022-10-01 2024-04-04 Mauro Pedretti Energy store for storing potential energy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024069221A1 (en) * 2022-10-01 2024-04-04 Mauro Pedretti Energy store for storing potential energy

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