A cyclic gravity energy storage transport system

Abstract

The application discloses a circulating gravity energy storage transportation system, which comprises a general controller, a ring track, a high-position stacking yard and a low-position stacking yard. A transportation train is composed of multiple flexible connection carriages and is arranged on the ring track. The low-position running track and the high-position running track on the ring track are provided with linear loading and unloading sections. The high-position stacking yard and the low-position stacking yard are provided with multiple grabbing parts which go back and forth between the loading and unloading sections and the stacking area. The hoisting device is electrically connected with the general controller. When the transportation train stops at the linear loading and unloading section, the general controller controls the multiple grabbing parts corresponding to the carriages of the transportation train on the hoisting device to synchronously and one-time load or unload. Through the double circulation design of train circulation and heavy block rapid loading and unloading, the core pain points of the existing gravity energy storage system, i.e. incoherent operation and low efficiency, are effectively solved, and a reliable system solution is provided for realizing large-scale, high-efficiency and fast-response commercial application of gravity energy storage.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of gravity energy storage, in particular to a circulating gravity energy storage transportation system. BACKGROUND

[0002] In the wave of global energy structure transformation towards clean and low-carbon, the rapid development of renewable energy is leading a profound energy revolution. However, renewable energy such as wind power and photovoltaic has significant intermittency and volatility, its power generation is closely related to natural conditions, and it is difficult to perfectly match the load demand of the power grid. This characteristic poses a serious challenge to the stable operation of the power system, making energy storage technology a key solution to balance the supply and demand contradiction and improve the resilience of the power grid. With the increasing demand for clean energy and energy security around the world, and the pressure of resource constraints (such as the shortage of rare metals such as lithium and cobalt) and rising costs faced by traditional battery energy storage technology, among many energy storage technology paths, gravity energy storage, with its unique advantages of environmental friendliness and long service life, has become a new force in the energy storage field.

[0003] The principle of gravity energy storage is to store energy by lifting heavy objects with electricity when there is excess electricity (converting electrical energy into gravitational potential energy), and to generate electricity by releasing energy through the descent of heavy objects when electricity is needed (converting potential energy into electrical energy). Energy storage blocks, which can be made from construction waste, tailings and other waste materials at low cost due to mature preparation technology, are the most common energy storage medium in gravity energy storage systems. Existing gravity energy storage solutions for energy storage blocks use different implementation methods, including "tower crane type", "cable car type", "inclined rail type", and "rail transportation type" gravity energy storage. However, they all focus on the implementation of the basic principle and fail to fully consider the overall system operation efficiency. Existing gravity energy storage technologies generally have the problems of incoherent system operation, low efficiency, and difficulty in achieving rapid and continuous energy storage and power generation cycles, which restrict their application efficiency and economy in large-scale energy storage scenarios. Therefore, there is an urgent need for a gravity energy storage system solution that can achieve efficient, continuous and stable operation, and has rapid response capability. SUMMARY

[0004] The present application provides a circulating gravity energy storage transportation system to solve the problem of incoherent system operation, low efficiency, and difficulty in achieving rapid and continuous energy storage and power generation cycles in the prior art.

[0005] The application discloses a circulating gravity energy storage transportation system, which comprises a general controller, a transportation train, a train track and high and low storage yards for placing energy storage heavy blocks, wherein the high and low storage yards are arranged with a height difference, the train track comprises an upward track for guiding the transportation train to run from the low storage yard to the high storage yard, a downward track for guiding the transportation train to run from the high storage yard to the low storage yard, a high-position running track for guiding the transportation train to run to the high storage yard in the process of running from the upward track to the downward track, and a low-position running track for guiding the transportation train to run to the low storage yard in the process of running from the downward track to the upward track, and the upward track, the high-position running track, the downward track and the low-position running track form a closed loop track, and the downward track is arranged with a power generation device.

[0006] The transportation train comprises a plurality of flexible connection carriages, and the transportation train is used for cyclically loading and unloading the energy storage heavy blocks of the high and low storage yards on the loop track.

[0007] The low-position running track and the high-position running track are arranged with linear loading and unloading sections, the length of the linear loading and unloading sections is greater than or equal to the length of the transportation train, the low storage yard and the high storage yard are arranged with a stacking area, the stacking area is provided with a hoisting device comprising a plurality of grabbing parts, the grabbing parts are arranged in an extension direction, the extension direction of the grabbing parts is parallel to the linear loading and unloading sections, and the grabbing parts move back and forth between the loading and unloading sections and the stacking area in a direction perpendicular to the linear loading and unloading sections, the hoisting device is electrically connected with the general controller, and when the transportation train stops at the linear loading and unloading section, the general controller controls the grabbing parts of the hoisting device to synchronously and once load or unload the energy storage heavy blocks.

[0008] Further, the track type gravity energy storage system comprises a train transportation cycle and an energy storage heavy block loading and unloading cycle, the energy storage heavy block loading and unloading cycle can be carried out in the train transportation cycle, in the train transportation cycle, the transportation train sequentially passes through the upward track, the high-position running track, the downward track and the low-position running track in the same running direction to cyclically run on the train track and pass through the low storage yard and the high storage yard, and in the energy storage heavy block loading and unloading cycle, the transportation train stops at the linear unloading section, and the grabbing parts of the hoisting device once synchronously load the energy storage heavy blocks from the stacking area to a whole train or once synchronously unload all the energy storage heavy blocks of a whole train to the stacking area in a loading and unloading direction perpendicular to the extension direction of the linear unloading section.

[0009] Further, the hoisting device comprises one or more hoisting assemblies, each hoisting assembly is provided with at least one grabbing part, the hoisting assembly comprises a horizontal moving and lifting mechanism, each grabbing part is connected to the horizontal moving and lifting mechanism of the corresponding hoisting assembly, and the horizontal moving and lifting mechanism is electrically connected with the general controller.

[0010] When the transport train is parked at the straight loading and unloading section, the general controller controls the horizontal movement and / or lifting mechanism of the plurality of grabbing parts corresponding to the positions and number of the transport train compartments to perform synchronous horizontal movement and / or lifting movement, and runs the grabbing parts to the energy storage heavy blocks to be clamped at the transport train or the stacking area,

[0011] After the general controller controls all the grabbing parts to clamp the corresponding energy storage heavy blocks synchronously, the horizontal movement and / or lifting mechanism is controlled to perform synchronous horizontal movement and / or lifting movement, and the clamped energy storage heavy blocks are transported to the predetermined position of the stacking area to complete one-time unloading, or one-time loading on each compartment of the transport train.

[0012] Further, the number of the grabbing parts operated by the hoisting device is equal to the number of the transport train compartments.

[0013] Further, each grabbing part can clamp only one energy storage heavy block at a time.

[0014] Further, when the transport train is parked at the straight loading and unloading section, the transport train compartment, the corresponding energy storage heavy block, and the corresponding grabbing part of the energy storage heavy block are in the same vertical plane along the direction perpendicular to the straight loading and unloading section.

[0015] Further, a plurality of driving devices for driving the transport train to travel are distributed on the train track, and the distance between any two adjacent driving devices in at least one continuous section of the upward track section is less than or equal to the length of the transport train.

[0016] Further, the driving device adopts a wheel driving mechanism, the transport train is provided with a driven structure matched and drivingly connected with the wheel driving mechanism, and the driven structure is a driving plate.

[0017] Further, the low-level stacking yard and / or the high-level stacking yard are provided in plurality, the plurality of low-level stacking yards and / or high-level stacking yards are provided with a plurality of low-level running tracks and / or high-level running tracks, and the plurality of low-level running tracks and / or high-level running tracks are connected with the upward track and the downward track through a turnout.

[0018] Further, the plurality of power generation devices are provided, at least a part of the plurality of power generation devices are arranged at intervals along the downward section of the downward track, and the distance between any two adjacent power generation devices is less than or equal to the length of the transport train.

[0019] The present application has the following beneficial effects:

[0020] In the circulating gravity energy storage transportation system, the high-position stockyard and the low-position stockyard form a circular track through the ascending track, the high-position running track, the descending track and the low-position running track of the train track, and the transportation of the energy storage heavy blocks of the high-position stockyard and the low-position stockyard is circularly loaded and unloaded on the circular track through the multi-carriage flexible connection of the transportation train, so that the double-circulation design of the train circulation and the rapid loading and unloading of the heavy blocks is realized. The multi-carriage flexible connection of the present application not only realizes the stable operation of the transportation train on the circular track, but also guides the straight loading and unloading section of the high-position stockyard and the low-position stockyard, and cooperates with the plurality of grabbing parts of the stockyard area. When the transportation train stops at the straight loading and unloading section, the plurality of grabbing parts corresponding to the carriage of the transportation train are controlled, and the synchronous one-time loading or unloading is carried out along the direction perpendicular to the straight loading and unloading section, so that the one-time whole-row rapid loading and unloading of the shortest path of the multi-carriage is realized, the core pain points of the existing high-position stockyard and low-position stockyard loading and unloading jam, the inability to meet the operation continuity demand of the circulating transportation and the low efficiency are solved, and a reliable system solution is provided for realizing large-scale, high-efficiency and fast-response gravity energy storage commercialization. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0022] Figure 1 An embodiment of the circulating gravity energy storage transportation system of the present application is shown in the figure.

[0023] Figure 2 Another view of an embodiment of the circulating gravity energy storage transportation system of the present application is shown in the figure.

[0024] Figure 3 The structure of the transportation train in the circulating gravity energy storage transportation system of the present application is shown in the figure.

[0025] Figure 4 The structure of the driving device in the circulating gravity energy storage transportation system of the present application is shown in the figure.

[0026] Figure 5 The structure of the hoisting device in the circulating gravity energy storage transportation system of the present application is shown in the figure.

[0027] Figure 6 The structure of the hoisting assembly in the circulating gravity energy storage transportation system of the present application is shown in the figure.

[0028] Figure 7 Another embodiment of the hoisting device in the circulating gravity energy storage transportation system of the present application is shown in the figure.

[0029] Figure 8 Another view of the hoisting device in the circulating gravity energy storage transportation system of the present application;

[0030] Figure 9 Second embodiment of the circulating gravity energy storage transportation system of the present application;

[0031] Figure 10 Another view of the second embodiment of the circulating gravity energy storage transportation system of the present application. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] As shown in Figures 1-2 The circulating gravity energy storage transportation system of the present application comprises a low-position storage yard 60, a high-position storage yard 70, a transportation train 10, a train track 20, a driving device 30, a power generation device 40, energy storage heavy blocks 50, and a general controller.

[0034] The transportation train 10 is configured to be capable of loading the energy storage heavy blocks 50.

[0035] The train track 20 comprises an uplink track 21 capable of guiding the transportation train 10 to run from the low-position storage yard 60 to the high-position storage yard 70, a downlink track 23 capable of guiding the transportation train 10 to run from the high-position storage yard 70 to the low-position storage yard 60, a high-position running track 22 capable of guiding the transportation train 10 to the high-position storage yard 70 during the running of the transportation train 10 from the uplink track 21 to the downlink track 23, and a low-position running track 24 capable of guiding the transportation train 10 to the low-position storage yard 60 during the running of the transportation train 10 from the downlink track 23 to the uplink track 21. The uplink track 21, the high-position running track 22, the downlink track 23, and the low-position running track 24 form a closed loop track.

[0036] The driving device 30 is configured to be capable of driving the transportation train 10 to run on the loop track.

[0037] The power generation device 40 is configured to be capable of converting the gravitational potential energy into electric energy during the running of the transportation train 10 from the high-position storage yard 70 to the low-position storage yard 60 along the high-position running track 22.

[0038] The high-level storage yard 70 and the low-level storage yard 60 are provided with a height difference. The high-level storage yard 70 and the low-level storage yard 60 are provided with a hoisting device 80, which can load and unload the energy storage weights 50 on the transport train 10 passing through the high-level storage yard 70 or the low-level storage yard 60.

[0039] like Figure 3 As shown, the transport train 10 includes multiple carriages 11, which are flexibly connected. The transport train 10 cyclically loads and unloads energy storage blocks 50 from the high-level storage yard 70 and the low-level storage yard 60 on a circular track. Each carriage 11 is equipped with at least one or more wheels 12 to guide the transport train 10 to run on the transport track 20. The carriages 11 are configured to carry energy storage blocks 50, and their structural form can be set according to the form of the energy storage blocks 50, such as a flatbed or a box-type. The number of energy storage blocks 50 loaded in the carriage 11 can also be adjusted according to the needs of the energy storage system, ranging from empty to fully loaded (loading 0-N energy storage blocks). Adjustments are made between the weight blocks 50. When multiple energy storage weight blocks 50 need to be loaded, at least a portion of the multiple energy storage weight blocks 50 can be stacked in the carriage 11. The multiple carriages 11 are flexibly connected. The flexible connection of the present invention is not limited to a specific connection structure. The flexible connection structure can adopt conventional train connection structures in the art, such as the classic "Jan coupler" connection, universal joint connection, or flexible rope connection. As long as two adjacent carriages 11 can achieve deflection / sway in the horizontal and / or vertical directions after being connected, it is considered a flexible connection as referred to in the present invention. The flexible connection allows the transport train 10 to better adapt to different terrains and achieve turning. For bending and / or climbing, in one embodiment of the present invention, two adjacent carriages 11 can be connected by a universal joint 13 or by a connector having a first hinge 13a and / or a second hinge contact 13b, thereby allowing the two adjacent carriages 11 to have a certain amount of movement space in the vertical direction Z and / or the horizontal direction Y. It should be noted that the flexible connection of multiple carriages 11 in the present invention is not limited to an implementation in which every carriage 11 in the multiple carriages 11 is flexibly connected, but also includes implementations in which only one pair of two adjacent carriages 11 are flexibly connected or in which some of the adjacent carriages 11 in the multiple carriages 11 are flexibly connected. Depending on the driving cooperation between the transport train 10 and the drive device 30, in one embodiment, the transport train 10 may optionally be provided with an installation structure (not shown in the figure) for the drive device 30 to be installed. In another embodiment, the transport train 10 may optionally be provided with a driven structure 11a so that it can be driven by the drive device 30. The driven structure 11a may be a drive plate or a drive engagement connector. Its arrangement with the carriage 11 may be integrally formed with the carriage 11 or it may be a separate component set on the carriage 11. The way it is set on the carriage 11 may be a fixed connection or a detachable connection that is easy to maintain.

[0040] like Figure 2As shown, the train track 20 comprises an uplink track 21 (da section), a high-level running track 22 (ab section), a downlink track 23 (bc section) and a low-level running track 24 (cd section), and the transport train 10 can pass through the uplink track 21-high-level running track 22-downlink track 23-low-level running track 24 in sequence, and the above-mentioned cycle can realize the circular operation of the transport train 10 on the train track 20, in one embodiment, the transport train 10 starts from the low-level stockyard 60, passes through the uplink track 21 and the high-level running track 22 to the high-level stockyard 70, and at least passes through an arc section (the train track is provided with an arc section) during the operation, and the transport train 10 starts from the high-level stockyard 70, passes through the downlink track 23 and the low-level running track 24 to the low-level stockyard 60, and at least passes through an arc section (the train track is provided with an arc section) during the operation, so that the transport train 10 in the present application can circularly operate on the train track 20 without turning around in the same direction of travel, and the present application refers to the forward operation of the transport train along the transport track without turning around, in one embodiment of the present application, the uplink track 21, the high-level running track 22, the downlink track 23 and the low-level running track 24 form a closed loop track, which facilitates the transport train 10 to realize the circular operation by turning around by itself, and the transport is more stable without the need for other equipment to assist in transfer, and the structure of the train track 20 can be set according to the actual terrain, for example, it can be set as a single track, a double track or other forms, the track can be formed by a combination of straight tracks and curved tracks in multiple sections to form a closed loop track, and the laying method can be determined according to different tracks and different terrains, one laying method of the uplink track 21 / downlink track 23 can be that a part of the uplink track 21 / downlink track 23 can be laid on the surface of the mountain and / or a part of the track can be laid on the support member, for example, it can be laid on the surface of the mountain after the land is leveled, and the laying operation can refer to the existing track laying construction specification, and the support member is for example a man-made metal support frame or a concrete support column, and multiple laying methods should be adjusted according to the terrain, at least a part of the uplink track 21 / downlink track 23 can form a stable and continuous drop section (uplink section / downlink section) by relying on the method, which is beneficial to the stable operation of the transport train 10 / stable power generation, the uplink track 21 and the downlink track 23 are connected to the high-level stockyard 70 and the low-level stockyard 60, and the high-level running track 22 / low-level running track 24 can be laid according to the setting of the high-level stockyard 70 / low-level stockyard 60, and one laying method is that the high-level running track 22 / low-level running track 24 is laid on the surface of the stockyard area, since the stockyard area is usually subjected to civil leveling operation, it is beneficial to the stable operation of the transport train 10 for loading and unloading, since the high-level stockyard 70 and the low-level stockyard 60 have a height difference, the uplink track 21 / downlink track 23 not only connects the high-level stockyard and the low-level stockyard, but also adapts to the mountain terrain, in the height direction, each track can be combined by one or more sections of the uplink section, the downlink section and the horizontal section, and the uplink track 21 is taken as an example, in one embodiment, at least a section of the uplink track 21 is set as an uplink section, that is, it gradually climbs in the height direction,In another embodiment, in addition to the upward section, the upward track 21 can be selectively provided with a horizontal section and / or a downward section, that is, in the overall upward trend track, a local section can be a horizontal section and / or a downward section, so as to better adapt to the terrain. The downward track 23 can be similarly provided, and at least one section of the high running track 22 and / or the low running track 24 is provided as a horizontal section, which can better adapt to the terrain conditions of the yard area. Of course, the high running track 22 and / or the low running track 24 can also be provided with one or more of the upward section, the downward section, and the horizontal section of the upward track 21.

[0041] The driving device 30 is configured to drive the transport train 10 to run on the transport track 20. In the present application, the driving device 30 uses a motor as a power source to drive the transport train 10 to circulate in the high-level yard 70 and the low-level yard 60. The driving device 30 can be arranged in multiple ways relative to the transport train 10 and the transport track 20, for example, a main driving embodiment is that the driving device 30 is arranged on the transport train 10 and is in contact / connected with the transport track 20 through a power transmission structure to drive the transport train 10 to move relative to the transport track 20. Another passive driving embodiment is that the driving device 30 is not arranged on the transport train 10, but is arranged outside the transport train 10 and is in contact / connected with the transport train 10 through a power transmission structure to directly drive the transport train 10 to move relative to the transport track 20. The driving device 30 can be selected from the train driving devices known to those skilled in the art in the prior art. The core of the selection of the driving device 30 in the present application is the layout of the driving device 30 relative to the train / track. The driving mode of the driving device 30 and the power transmission structure of the driving device 30 itself, that is, the power transmission structure of the power source (motor), are not specifically limited, and they can adopt the existing solutions in the prior art, such as Figure 4 In an embodiment of the present application, the driving device 30 and the transport train 10 can selectively adopt a driving wheel driving mode, that is, the driving device 30 is provided with a driving wheel 31, the driving wheel 31 is kept in contact with the driven structure 11a (driving plate) of the transport train 10 through a tensioning mechanism 32 to realize friction driving. The intermediate transmission structure of the driving wheel 31 receiving the motor power can be arranged according to different working conditions, for example, the driving device structure in the applicant's prior application CN 202320067168.9 can be referred to, and the driving wheel 31 can be arranged inside the transport track 20 / transport train 10 (built-in type) as in CN 202320067168.9. In other embodiments (such as Figure 4The driving wheel 31 can also be arranged outside the transportation track 20 / transportation train 10 (external type), and the driving wheel 31 can be made of rubber, metal or other composite materials. The purpose of arranging the driving device 30 in the track-type energy storage system is to drive the transportation train 10 to run on the transportation track 20. In order to realize the circulation of the transportation train 10, in one embodiment, the driving device 30 is arranged on the uplink track 21, the high-position running track 22 and the low-position running track 24 to drive the transportation train 10 to run. The transportation train 10 can rely on gravity to run on the downlink track 23 without the need to arrange the driving device 30. In another embodiment, the driving device 30 can also be arranged on the downlink track 23, for example, in the case of the above-mentioned uplink section arranged on the downlink track 23 (partial uphill), the driving device 30 is arranged on the uplink section to prevent the transportation train 10 from falling back, or the driving device 30 is arranged on the non-descending slope section of the downlink track 23, for example, on the two connecting sections or other horizontal sections connecting the high-position storage yard 70 and the low-position storage yard 60 to realize the smooth running of the transportation train 10. In one embodiment of the present application, the uplink track 21, the high-position running track 22, the low-position running track 24 and / or the downlink track 23 can adopt the same driving mode / driving structure of the driving device 30. In one embodiment, the driving device 30 of the whole system adopts the driving wheel type driving mode. In another embodiment, for example, the chain or cable driving mode can also be adopted. This mode can realize the scaling of the driving device, reduce the cost and facilitate maintenance. In another embodiment, different tracks can also adopt different driving modes / driving structures, for example, the uplink track 21 adopts the driving wheel type driving mode, and one or more of the high-position running track 22 and the low-position running track 24 adopts other driving forms, such as the gear and rack driving mode or the chain type driving mode, etc. The combination of multiple driving modes can realize different driving accuracy. Similarly, the same track generally adopts the same driving device 30, for example, the driving wheel type driving device. However, in other embodiments, the same track can adopt different driving devices 30, for example, the uplink track 21 is provided with an uplink section with continuously rising altitude, which adopts the driving wheel type driving mode, and the connecting section connecting the high-position storage yard 70 / low-position storage yard 60 adopts other driving modes described above. The arrangement mode of the driving device 30 relative to the train / or track can be various, for example, one can be that the driving device 30 is arranged on the transportation train 10, another can be that the driving device 30 is fixed at a certain fixed position to drive the transportation train 10 to run (winch cable traction type driving), and another can be that multiple driving devices 30 are arranged at intervals along the transportation track 20. In one embodiment, the driving device 30 adopts the driving wheel type driving mode, and multiple driving devices 30 are arranged at intervals along the uplink track 21. Multiple driving devices 30 can form a relay type driving for the transportation train 10. In one embodiment, in order to make the relay more stable and smooth, the distance between any two adjacent driving devices 30 on at least one continuous uplink section of the uplink track 21 is less than or equal to the length of the transportation train 10.The running train 10 is driven by at least one driving device 30 at any position on the uphill section, so that the uphill is more stable. In another embodiment, the distance between any two adjacent driving devices 30 on the entire length of the uphill track 21 is less than or equal to the length of the transport train 10, so that the transport train 10 can be driven by at least one driving device at any position on the entire length of the uphill track 21, ensuring continuous power during the uphill journey, smooth and reliable transportation. The distributed arrangement of the driving device 30 on other tracks can be similarly arranged as the uphill track 21. The driving device 30 can be arranged on the outside or inside of the transport train 10 / transport track 20. In another embodiment, the driving device can also be installed on the transport track 20. Various installation methods can be selected according to the actual layout space.

[0042] The power generation device 40 is arranged to convert the gravitational potential energy of the transport train 10 and / or the energy storage heavy block 50 into electrical energy during the process of the transport train 10 running along the descending track 23 from the high-level stockyard 70 to the low-level stockyard 60. The core of the power generation device 40 in the present application is the layout of the power generation device 40 relative to the vehicle / or track, and the structure of the power generation device 40 for realizing power generation after being driven by the transport train 10 and receiving power is not specifically limited, and existing technical solutions can be used, for example, in one embodiment, referring to the driving mode of the driving device 30 driving the transport train 10, the power generation device 40 adopts a similar driving wheel-driving plate mode to accept the driving of the transport train 10, that is, the driving mode of the driving device 30 and the power generation device 40 is reversely arranged, which can also be arranged with a tensioning structure to maintain the driven state, and the power generation structure adopts the existing permanent magnet synchronous motor structure, that is, the power generation device 40 is a driving wheel type permanent magnet synchronous generator. In another embodiment, for example, the power generation device in the applicant's prior application CN202411805892.2 can be used, or the power generation device in CN202411805892.2 is combined with existing technology to make adjustments, for example, the tensioning mode is adjusted to a hydraulic or electric tensioning mode, the generator arrangement mode is vertical or horizontal, the driving wheel is arranged outside the track, etc. The arrangement of the power generation device 40 relative to the vehicle / or track can be various, for example, one can be: a plurality of power generation devices 40 are arranged at intervals along the descending track 23, and the plurality of power generation devices 40 can form a relay type power generation. In one embodiment, the distance between any two adjacent power generation devices 40 on at least one continuous descending section of the descending track 23 is less than or equal to the length of the transport train 10. In this arrangement, the transport train 10 is driven by at least one power generation device 40 at any position on the descending section, fully converting the gravitational potential energy of the transport train 10 and / or the energy storage heavy block 50. The power generation device 40 can be arranged on the outside or inside of the transport train 10 / transport track 20. In another embodiment, the driving device can also be installed on the descending track 23, and various installation modes can be selected according to the actual layout space.

[0043] The energy storage heavy block 50 is arranged as a counterweight block, and the number of the energy storage heavy block 50 loaded onto the transport train 10 can adjust the power generation power of the energy storage system. In one embodiment, the energy storage heavy block 50 can be pre-fabricated into a standard block, such as a reinforced concrete block or a metal block or a filled block, etc., and the shape can be arranged as a rectangle. The energy storage heavy block 50 can be provided with a structure or member for easy clamping / stacking.

[0044] As Figures 1-2, 5-8, low yard 60, high yard 70 are set at different altitudes of the mountain, both have height difference, high yard 70, low yard 60 are provided with hoisting device 80, hoisting device 80 can unload / load energy storage weight 50 on transport train 10 passing through high yard rail, low yard rail of high yard 70, low yard 60, the purpose of setting hoisting device 80 in the application is to realize the unloading / loading of energy storage weight 50 on transport train 10 by hoisting, the specific structure of hoisting device 80 is not limited, can adopt the hoisting device in prior art, for example, row hoist type hoisting device, crane type hoisting device, hoisting vehicle, hoisting robot, etc., hoisting device 80 is provided with hoisting assembly for grabbing / releasing energy storage weight 50, which can be moved or driven to move in the vertical direction, and can be moved or driven to move in the horizontal direction, the structure form of hoisting assembly can be various, for example, jaw, manipulator, hook, coupler, etc., high yard 70, low yard 60 are provided with stacking area 80a, energy storage weight 50 is placed in stacking area 80a, energy storage weight 50 can be stacked in single layer or stacked manner, hoisting device 80 realizes conversion between energy storage weight 50 in stacking area 80a and transport train 10 through loading and unloading section, in one embodiment, hoisting device 80 directly takes / places energy storage weight 50 between stacking area 80a and transport train 10 to realize the unloading / loading and position conversion of energy storage weight 50, in another embodiment, hoisting device 80 cooperates with other transfer devices, for example, VGA trolley, to realize the unloading / loading and position conversion of energy storage weight 50 between stacking area 80a and transport train 10.

[0045] The high-position yard rail and the low-position yard rail correspond to the high-position running rail 22 and the low-position running rail 24, which are set as straight unloading sections, and correspond to the high-position yard unloading section 22a and the low-position yard unloading section 24a, respectively, and the lengths of the straight unloading sections are greater than or equal to the length of the transport train 10. In another embodiment, the straight sections are horizontal straight sections, that is, the transport train 10 can be parked horizontally and linearly in the straight sections, and after the transport train 10 is parked in the straight section unloading rail, the whole is linear, the yaw displacement between the carriages 11 is guided and calibrated by the straight section, the hoisting device 80 can concentrate and accurately load and unload, and the efficiency of loading and unloading can be greatly improved, thereby improving the operation efficiency of the whole energy storage system. The hoisting assembly of the hoisting device 80 includes a horizontal lifting mechanism, which drives the grabbing part to move vertically to lift the energy storage weight 50, and moves horizontally between the unloading section and the stacking area 80a to realize the translation of the energy storage weight 50. In one embodiment, at least a part of the moving path of the hoisting assembly between the unloading section and the stacking area 80a is perpendicular to the unloading section, and in another embodiment, the hoisting assembly reciprocates between the unloading section and the stacking area 80a in a direction perpendicular to the unloading section. Such path planning can reduce hoisting displacement time and further improve loading and unloading efficiency, as shown in Figure 5 In one specific embodiment, the hoisting device 80 is provided with a support frame 81, a hoisting assembly 82, and a power source 85. The hoisting assembly 82 includes a horizontal lifting mechanism, which includes Figure 5 a connecting member and a horizontal trolley 83. The connecting member can be a cable, and the hoisting assembly 84 can be driven in the vertical direction by the power source 85 through the connecting member. The horizontal trolley 83 is arranged on the support frame 81, and the movement of the horizontal trolley 83 realizes the translation of the hoisting assembly 82. The unloading section is arranged in the support frame 81, and the unloading section is set as the above-mentioned straight unloading section. The horizontal trolley 83 drives the hoisting assembly 82 to move in a direction perpendicular to the straight unloading section. The hoisting device of this embodiment can realize efficient loading and unloading. In one embodiment, the hoisting assembly 82 is provided with a plurality of hoisting assemblies 82, and the hoisting assembly 82 is provided in multiple ways in this embodiment, as shown in Figure 6 For example, in one embodiment, the hoisting assembly 82 is provided with a plurality of grabbing parts 82a, and the plurality of grabbing parts 82a are arranged at intervals along an extension direction M, which is parallel to the extension direction N of the straight unloading section. In this way, by arranging a hoisting assembly 82 with a plurality of grabbing parts 82a in a single hoisting device, a hoisting assembly 82 can grab a plurality of energy storage weights 50 on a plurality of carriages 11, further improving the loading and unloading efficiency. In another embodiment, as shown in Figure 7As shown, a plurality of hoisting devices 80 can be arranged in one yard, and the plurality of hoisting devices 80 are provided with a plurality of hoisting assemblies 82 (each hoisting assembly 82 can be provided with one or more grabbing parts 82a). In this way, the plurality of hoisting devices are provided with the plurality of hoisting assemblies 82, and the plurality of hoisting assemblies 82 can be uniformly moved to simultaneously hoist a plurality of heavy blocks 50, thereby improving the loading and unloading efficiency.In one embodiment, during the hoisting process of the energy storage weight 50, the hoisting device 80 is arranged on the stacking area 80a, and a plurality of grabbing parts 82a of the hoisting device 80 are arranged at intervals along an extension direction, and the extension direction of the grabbing parts 82a is parallel to the straight loading and unloading section, and the grabbing parts 82a move back and forth between the straight loading and unloading section and the stacking area 80a along a direction perpendicular to the straight loading and unloading section, the hoisting device 80 is electrically connected with the general controller, when the transport train 10 is transported and parked to the straight loading and unloading section, the general controller controls a plurality of grabbing parts 82a corresponding to the carriages 11 of the transport train 10 on the hoisting device 80 to perform synchronous one-time loading or unloading, and the whole train is hoisted, which can greatly improve the loading and unloading speed of the energy storage weight 50 and improve the operation efficiency of the whole system. In one embodiment, when a plurality of hoisting devices 80 are arranged, the grabbing parts 82a of the plurality of hoisting devices 80 are synchronously operated to load and / or unload the same train of transport trains 10. Specifically, the plurality of grabbing parts 82a of the hoisting device 80 synchronously one-time load the energy storage weight 50 from the stacking area 80a to a whole train of transport trains along a loading and unloading direction perpendicular to the extension direction of the straight loading and unloading section, or synchronously one-time unload all the energy storage weights 50 on a whole train of transport trains to the stacking area 80a, which can ensure that the plurality of hoisting devices cooperatively one-time load and unload the same transport train. In order to realize one-time synchronous loading and unloading of a plurality of carriages of a whole train, in one embodiment, the hoisting device 80 is provided with a plurality of hoisting assemblies 82, each hoisting assembly 82 is provided with a plurality of grabbing parts 82a, and the plurality of grabbing parts 82a of the same hoisting assembly 82 are synchronously moved and / or grabbed, and the plurality of hoisting devices 80 are also synchronously operated and / or grabbed according to the number of energy storage weights / carriages. In order to prevent interference between the plurality of hoisting devices 80 during synchronous movement, at least two adjacent hoisting devices 80 are arranged at intervals, and the interval G between the two adjacent hoisting devices 80 arranged at intervals can be used as a maintenance channel. In order to balance the reasonable width requirement of the maintenance channel and the requirement that the grabbing parts 82a of the two adjacent hoisting devices 80 can one-time synchronously hoist different carriages of the same train, the plurality of hoisting devices 80 are arranged at intervals along the extension direction N of the straight loading and unloading section, and the hoisting device 80 is provided with a support frame 81 and a hoisting assembly 82, and the hoisting assembly 82 protrudes out of the support frame 81 along the extension direction N of the straight loading and unloading section. Through the protrusion of the hoisting assembly 82 out of the support frame 81, the hoisting assembly 82 can extend into the interval between the two hoisting devices 80. This arrangement balances the requirement of arranging a plurality of hoisting devices 80 to set a maintenance channel and the requirement that the adjacent hoisting devices 80 load the energy storage weights 50 of different carriages 11 of the same transport train 10, thereby further improving the hoisting efficiency and realizing the efficiency of the whole energy storage system.

[0046] In the present application, the synchronous loading and unloading of the one-time includes loading and unloading of the full load transport train, and also includes loading and unloading of the partial load transport train. The general controller can control the corresponding hoisting device to load and unload according to the actual loading condition and the information of the number of transport train carriages and / or energy storage heavy blocks. The hoisting device for one-time synchronous loading and unloading includes the synchronous movement and / or grabbing of multiple grabbing parts of one hoisting device, and also includes the synchronous movement and / or grabbing of multiple grabbing parts of multiple hoisting devices. In the present application, the one-time synchronous grabbing of the energy storage heavy blocks from the stacking area to the full load transport train for loading includes full load loading of the full load transport train (loading the energy storage heavy blocks in the stacking area to each carriage) and also includes partial load loading (loading the energy storage heavy blocks in the stacking area to part of the carriages). Similarly, in the present application, the one-time synchronous grabbing of all energy storage heavy blocks of the full load transport train to the stacking area for unloading also includes the above full load and partial load conditions, that is, in the full load condition, each carriage has energy storage heavy blocks, and in the partial load condition, only part of the carriages have energy storage heavy blocks. Those skilled in the art should understand that the core of the one-time synchronous loading and unloading in the present application is that the hoisting device (synchronous movement / grabbing of one hoisting assembly or multiple hoisting assemblies, each hoisting assembly is provided with one or more grabbing parts) loads or unloads the full train through one-way movement, and the transport train can be full load or partial load. The general controller can control the multiple grabbing parts of the hoisting device to achieve the one-time synchronous grabbing of the loading and unloading according to the number of carriages or the number of energy storage heavy blocks to be grabbed or other preset modes.

[0047] Preferably, the hoisting device 80 includes one or more hoisting assemblies 82, each hoisting assembly 82 is integrally connected with multiple grabbing parts 82a, the multiple grabbing parts 82a are arranged at intervals along the direction parallel to the extension direction N of the straight loading and unloading section. The hoisting assembly 82 includes a transverse lifting mechanism, each grabbing part 82a is connected to the transverse lifting mechanism on the corresponding hoisting assembly 82, and the transverse lifting mechanism is electrically connected with the general controller. In the case of full load of a transport train, the specific high-level stockyard 70 and low-level stockyard 60 fast loading and unloading control process is as follows:

[0048] When the transport train 10 stops at the straight loading and unloading section of the high-level stockyard 70 / low-level stockyard 60 through the circular track, the general controller controls the transverse lifting mechanism of the multiple grabbing parts 82a corresponding to the position and number of the carriages 11 of the transport train 10 to perform synchronous transverse movement and / or lifting movement, and runs the grabbing part 82a to the to-be-clamped energy storage heavy block 50 at the transport train 10 or the stacking area,

[0049] After the total controller controls the synchronous clamping of the corresponding energy storage weight 50 by the position and number of the train carriage to the clamping part 82a, it controls the synchronous horizontal movement and / or lifting movement of the horizontal lifting mechanism to transport the clamped energy storage weight 50 to the predetermined position of the stacking area to complete the one-time unloading, or to the carriage 11 of the transport train 10 to complete the one-time loading.

[0050] In actual application, each clamping part 82a can only clamp one energy storage weight 50 at a time, and each clamping part 82a is arranged in the same vertical plane as the corresponding energy storage weight 50 to be clamped in the high stacking yard 70 / low stacking yard 60 along the clamping translation direction of the clamping part 82a.

[0051] When the transport train 10 stops at the straight loading and unloading section, the carriage 11 of the transport train 10, the energy storage weight 50 corresponding to the carriage 11, and the clamping part 82a corresponding to the energy storage weight 50 are arranged in the same vertical plane along the direction perpendicular to the straight loading and unloading section.

[0052] As an embodiment, when the transport train 10 is fully loaded, the number of clamping parts 82a running in the lifting device 80 is equal to the number of carriages 11 of the transport train 10.

[0053] The flexible connection of multiple carriages not only meets the smooth running of the transport train 10 on the loop track, but also guides the straight loading and unloading section of the high stacking yard 70 and the low stacking yard 60, and cooperates with the multiple clamping parts 82a of the stacking area. When the transport train 10 stops at the straight loading and unloading section, the total controller controls the multiple clamping parts 82a corresponding to the carriages 11 of the transport train 10 to perform synchronous one-time loading or unloading along the direction perpendicular to the straight loading and unloading section, thereby realizing one-time whole-row fast loading and unloading of the shortest path of multiple carriages, solving the core pain points of existing high and low stacking yards, which cannot meet the operation continuity demand of circular transportation and has low efficiency, and providing a reliable system solution for large-scale, high-efficiency, and fast-response gravity energy storage commercialization.

[0054] In order to further improve the capacity of the energy storage system of the present application, the low stacking yard 60 and / or the high stacking yard 70 can be provided in multiple numbers, and the multiple low stacking yards 60 and / or high stacking yards 70 are connected with the upper track 21 and the lower track 23 through the turnout 90, such as Figures 9-10As shown, in one embodiment, the low-position yard includes a first low-position yard 60-1 and a second low-position yard 60-2, and the high-position yard 70 includes a first high-position yard 70-1 and a second high-position yard 70-2. Taking the first high-position yard 70-1 and the second high-position yard 70-2 as examples, a turnout 90 is arranged on the up track 21 and the down track 23 to selectively access the first high-position yard 70-1 and the second high-position yard 70-2. The turnout 90 can adopt the structure in the prior art in the field of rail transit. The first high-position yard 70-1 is connected to the up track 21 through a first high-position access section (T1a section) and connected to the down track 23 through a first high-position exit section (bT2 section). The second high-position yard 70-2 is connected to the up track 21 through a second high-position access section (T1a1 section) and connected to the down track 23 through a second high-position exit section (b1T2 section). The low-position yard has a similar structure.

[0055] The above describes multiple embodiments of multiple modules (transportation train 10, train track 20, driving device 30, power generation device 40, energy storage weight 50, low-position yard 60, high-position yard 70, and hoisting device 80). It should be noted that multiple technical features in any one of the above modules do not necessarily need to be arranged in the same embodiment. Instead, different embodiments can be formed by any combination of multiple technical features and / or different embodiments of a single technical feature. Different embodiments of different technical features in different modules can also be combined across modules to form different embodiments. For example, different embodiments of a single technical feature in each module can be combined as follows:

[0056] The transportation train 10 is provided with multiple carriages 11 that can be tilted / deflected in the vertical direction and the horizontal direction. The carriage 11 is provided with a driving plate.

[0057] The transportation track 20 is arranged in a double-track manner. The up track 21 is provided with a continuous up section, and the down track 23 is provided with a continuous down section. The high-position yard track and the low-position yard track are provided with a straight loading and unloading section. The length of the straight loading and unloading section is greater than or equal to the length of the transportation train 10.

[0058] The driving device 30 adopts a driving wheel type driving mode. The driving device 30 is arranged at intervals along the up section of the up track 21. The distance between any two adjacent driving devices 30 is less than or equal to the length of the transportation train 10. The driving device 30 is arranged on the outer side of the up track.

[0059] The power generation device 40 adopts a driving wheel type driven mode. The power generation device 40 is arranged at intervals along the down section of the down track 23. The distance between any two adjacent power generation devices 40 is less than or equal to the length of the transportation train 10. The power generation device is arranged on the outer side of the down track 23.

[0060] The low-position stockyard 60 and the high-position stockyard 70 are provided with a stacking area 80a, and the hoisting device 80 is provided with a hoisting assembly 82, and the hoisting assembly 82 reciprocates between the linear loading and unloading section and the stacking area 80a along a direction perpendicular to the linear loading and unloading section.

[0061] The hoisting assembly 82 of the hoisting device 80 is provided with a plurality of grabbing parts 82a along a direction parallel to the extension direction N of the linear loading and unloading section, and the plurality of grabbing parts 82a are arranged at intervals along the direction parallel to the extension direction N of the linear loading and unloading section.

[0062] The different embodiments of each module described above can be combined with different embodiments of other modules to form different embodiments of the energy storage system.

[0063] The cyclic gravity energy storage transportation system utilizes the altitude difference of the terrain to arrange the high-position stockyard 70 and the low-position stockyard 60, and through the cyclic train track 20 (the upward track 21 connects the low-position stockyard 60 and the high-position stockyard 70, the downward track 23 connects the high-position stockyard 70 and the low-position stockyard 60, the high-position running track 22 connects the upward track 21 and the downward track 23 in the high-position stockyard 70, and the low-position running track 24 connects the downward track 23 and the upward track 21 in the low-position stockyard 60), the transportation train 10 can be cyclically loaded and unloaded between the high-position stockyard 70 and the low-position stockyard 60 (in one cycle, the transportation train 10 can sequentially pass through the upward track 21-high-position running track 22-downward track 23-low-position running track 24-upward track 21 to realize cyclic operation), and the high-position stockyard 70 and the low-position stockyard 60 are provided with the hoisting device 80, so that the transportation train 10 can realize loading and / or unloading of the energy storage weight 50 during the cyclic reciprocation between the high-position stockyard 70 and the low-position stockyard 60. In the gravity energy storage mode, the transportation train 10 loads the energy storage weight 50 from the low-position stockyard 60, runs from the low-position stockyard 60 to the high-position stockyard 70 along the upward track 21, and unloads the energy storage weight 50 to the stacking area 80a, so as to store the gravitational potential energy in the high-position stockyard 70, realize the conversion of electric energy-gravitational potential energy, form a gravity energy storage transportation line, and realize the conversion of electric energy-gravitational potential energy, form a power generation transportation line.

[0064] The cyclic gravity energy storage transportation system combines the spatial operation cycle of the train on the ring track with the material flow cycle of the rapid loading and unloading of the energy storage weight, realizes efficient and seamless connection of the energy storage and release processes, and has the following beneficial effects:

[0065] The transport train can continuously circulate in the running direction (upward track -> high-position running track -> downward track -> low-position running track) on the closed loop track, so that the time loss caused by the turn-back and U-turn in the prior art is eliminated, the two core processes of energy storage (upward) and power generation (downward) can be closely connected and continuously carried out, and the overall operation smoothness of the system is greatly improved.

[0066] The loading and unloading efficiency is extremely optimized, and the system operation efficiency is high; the loading and unloading process is extremely optimized through the collaborative design of the "linear loading and unloading section guide + the transport train circulating on the loop track + the multiple grabbing parts hoisting device one-time centralized loading and unloading path of the vertical linear loading and unloading section", when the whole transport train is parked in the linear loading and unloading section, the hoisting device can complete the synchronous loading and unloading of all energy storage heavy blocks of the whole train at one time by virtue of the multiple grabbing parts arranged along the track direction, the loading and unloading action directly reciprocates between the stockyard and the train along the direction perpendicular to the linear loading and unloading section, the path is the shortest and the action is the simplest, so that the time of the system in the heavy block conversion link is reduced to the minimum, the restriction factor of the response speed of the gravity energy storage system is broken through, and the system operation efficiency is extremely high.

[0067] The double-circulation collaborative compatibility ensures the system operation to be continuous and stable; the space operation cycle and the material flow cycle are not independently operated, but are highly compatible and mutually promoted; the circulation operation of the train guarantees the continuous demand of the material flow; and the efficient loading and unloading cycle ensures that the train stays in the stockyard for the shortest time, thereby guaranteeing the continuity of the operation cycle; and the double-circulation collaborative mechanism makes the overall system operation more continuous and stable.

[0068] In conclusion, the double-circulation design of the train circulation operation and the rapid loading and unloading of heavy blocks effectively solves the core pain points of the existing gravity energy storage system, such as the incoherent operation and low efficiency, and provides a reliable system solution for realizing large-scale, high-efficiency and fast-response commercial application of the gravity energy storage.

[0069] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0070] The above-described embodiments only express several implementation manners of the application, the description is relatively specific and detailed, but it should not be understood as the limitation on the scope of the patent. It should be pointed out that, for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the application, and these all belong to the protection scope of the application. Therefore, the protection scope of the application should be subject to the appended claims.

Claims

1. A cyclic gravity energy storage transport system, comprising: The total controller, the transport train, the train track, and the high-level yard and the low-level yard for placing the energy storage heavy blocks, the high-level yard and the low-level yard are provided with a height difference, characterized in that: The train track comprises: an upward track for guiding the transport train to run from the low-level yard to the high-level yard, a downward track for guiding the transport train to run from the high-level yard to the low-level yard, a high-level running track for guiding the transport train to the high-level yard in the process of running from the upward track to the downward track, and a low-level running track for guiding the transport train to the low-level yard in the process of running from the downward track to the upward track, wherein the upward track, the high-level running track, the downward track, and the low-level running track form a closed loop track, the downward track is provided with a power generation device, the transport train comprises multiple flexible connected carriages, the transport train performs cyclic loading and unloading transportation of the energy storage heavy blocks of the high-level yard and the low-level yard on the loop track, the low-level running track and the high-level running track are provided with a straight line loading and unloading section, the length of the straight line loading and unloading section is greater than or equal to the length of the transport train, the low-level yard and the high-level yard are provided with a stacking area, the stacking area is provided with multiple hoisting devices, the multiple hoisting devices are arranged at intervals along the extension direction of the straight line loading and unloading section, each hoisting device is provided with a support frame and a hoisting assembly, each hoisting assembly is provided with multiple grabbing parts, the multiple grabbing parts are arranged at intervals along an extension direction, and the extension direction of the grabbing parts is parallel to the straight line loading and unloading section, the hoisting assembly protrudes out of the support frame along the extension direction of the straight line unloading section and extends into the interval between two adjacent hoisting devices, the grabbing parts move back and forth between the loading and unloading section and the stacking area along a direction perpendicular to the straight line loading and unloading section, the hoisting devices are electrically connected with the total controller, and when the transport train stops at the straight line loading and unloading section, the total controller controls the multiple grabbing parts of the multiple hoisting devices to synchronously grab the energy storage heavy blocks from the stacking area to a whole train of the transport train for loading or synchronously grab all the energy storage heavy blocks of a whole train of the transport train to the stacking area for unloading along a loading and unloading direction perpendicular to the extension direction of the straight line unloading section.

2. A cyclic gravity energy storage transport system according to claim 1, wherein, The track type gravity energy storage system comprises a train transportation cycle and an energy storage heavy block loading and unloading cycle, the energy storage heavy block loading and unloading cycle can be performed in the train transportation cycle, in the train transportation cycle, the transport train sequentially passes through the upward track, the high-level running track, the downward track, and the low-level running track in the same running direction to cyclically run on the train track and pass through the low-level yard and the high-level yard, in the energy storage heavy block loading and unloading cycle, the transport train stops at the straight line unloading section, and the multiple grabbing parts of the multiple hoisting devices synchronously grab the energy storage heavy blocks from the stacking area to a whole train of the transport train for loading or synchronously grab all the energy storage heavy blocks of a whole train of the transport train to the stacking area for unloading along a loading and unloading direction perpendicular to the extension direction of the straight line unloading section.

3. A cyclic gravity power storage transport system according to claim 2, wherein, The lifting assembly comprises a transverse lifting mechanism, each of the grabbing parts is connected to the transverse lifting mechanism on the corresponding lifting assembly, the transverse lifting mechanism is electrically connected with the general controller, when the transport train is transported to the linear loading and unloading section, the general controller controls the transverse lifting mechanism of the grabbing parts corresponding to the position and number of the transport train carriage to perform synchronous transverse movement and / or lifting movement, and the grabbing parts are operated to the energy storage heavy block to be clamped at the transport train or the stacking area, after the general controller controls all the grabbing parts to synchronously clamp the corresponding energy storage heavy block, the transverse lifting mechanism is controlled to perform synchronous transverse movement and / or lifting movement, and the clamped energy storage heavy block is transported to the predetermined position of the stacking area to complete one-time unloading, or one-time loading on each carriage of the transport train is completed.

4. A cyclic gravity power storage transport system according to claim 3, wherein, The number of the grabbing parts operated by the plurality of lifting devices is equal to the number of the carriages of the transport train.

5. A cyclic gravity power storage transport system according to claim 1, wherein, Each grabbing part can clamp only one energy storage heavy block at a time.

6. A cyclic gravity power storage transport system according to claim 5, wherein, When the transport train is transported to the linear loading and unloading section, the carriage of the transport train, the energy storage heavy block corresponding to the carriage, and the grabbing part corresponding to the energy storage heavy block are in the same vertical plane in the direction perpendicular to the linear loading and unloading section.

7. A cyclic gravity power storage transport system according to claim 1, wherein, A plurality of driving devices for driving the transport train to travel are distributed on the train track, and the distance between any two adjacent driving devices in at least one continuous section of the upward track section is less than or equal to the length of the transport train.

8. A cyclic gravity power storage transport system according to claim 7, wherein, The driving device adopts a wheel driving mechanism, the transport train is provided with a driven structure matched and drivingly connected with the wheel driving mechanism, and the driven structure is a driving plate.

9. A cyclic gravity power storage transportation system according to claim 1, wherein, The low-level stacking yard and / or the high-level stacking yard are provided in a plurality of forms, a plurality of low-level stacking yards and / or high-level stacking yards are provided with a plurality of low-level running tracks and / or high-level running tracks, and the plurality of low-level running tracks and / or high-level running tracks are connected with the upward track and the downward track through a turnout.

10. A cyclic gravity power storage transportation system according to claim 1, wherein, The power generation device is provided in a plurality of forms, at least a part of the plurality of power generation devices is arranged at intervals along the downward section of the downward track, and the distance between any two adjacent power generation devices is less than or equal to the length of the transport train.

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