Continuous gravity energy storage system

Abstract

The invention relates to the technical field of gravity energy storage, in particular to a continuous gravity energy storage system.The continuous gravity energy storage system is characterized in that an upper-layer storage unit and a lower-layer storage unit are both installed on a building body, and a lifting module comprises a frame, a lifting unit, a transportation supporting unit and a transition supporting unit, the lifting unit is used for driving the transportation supporting unit to continuously move in the vertical direction relative to the frame and the transition supporting unit, and the heavy blocks are conveyed between the transportation supporting unit and the building module through the transition supporting unit so that the heavy blocks can be conveyed between the upper-layer storage unit and the lower-layer storage unit. The invention aims to provide a continuous gravity energy storage system aiming at at least one technical problem related in the background technology.

Description

Technical Field

[0001] This application relates to the technical field of gravity energy storage, and more particularly, to a continuous gravity energy storage system. Background Art

[0002] The instability of power generation from renewable energy sources such as wind energy and photovoltaic energy places a great pressure on the power grid distribution. The mismatch between renewable energy generation resources and power loads also causes energy waste. Energy storage systems can perform peak shaving and frequency modulation for renewable energy. Therefore, it has become an inevitable trend to equip renewable energy with energy storage systems. Currently, the relatively mature energy storage technologies in the prior art include battery energy storage, pumped hydro energy storage, and compressed air energy storage, etc.

[0003] Gravity energy storage technology is a new type of energy storage technology. It uses surplus energy to endow a certain mass object with potential energy and store it to complete energy storage. Then, by releasing the object, the potential energy can be converted back into electric energy and other forms of energy. Gravity energy storage has gradually received attention in the field of energy storage technology and has been applied to a certain extent due to advantages such as low cost per kilowatt-hour and flexible siting. However, existing gravity energy storage systems often require deceleration, stopping, positioning, grasping, and releasing heavy object blocks, resulting in a low energy conversion rate. Summary of the Invention

[0004] The purpose of this application is to provide a continuous gravity energy storage system for at least one of the technical problems involved in the background art.

[0005] To achieve the above purpose, this application adopts the following technical solutions:

[0006] This application provides a continuous gravity energy storage system, including a building module, a lifting module, and multiple heavy object blocks. The building module includes a building main body, an upper storage unit and a lower storage unit both used for storing the heavy object blocks. The upper storage unit and the lower storage unit are both installed on the building main body.

[0007] The lifting module includes a frame, a lifting unit, a transportation support unit, and a transition support unit all installed on the frame.

[0008] The lifting unit is used to drive the transportation support unit to continuously move in the vertical direction relative to the frame and the transition support unit.

[0009] The heavy object blocks are transmitted between the transportation support unit and the building module through the transition support unit to realize the transmission of the heavy object blocks between the upper storage unit and the lower storage unit.

[0010] Optionally, the continuous gravity energy storage system provided in this application includes two of the lifting modules arranged in mirror symmetry, and two transport support units that are mirror-symmetrical in the two lifting modules are used to transport the same heavy object block.

[0011] Optionally, the lifting unit includes a transmission assembly and a traction assembly both installed on the frame. The traction assembly includes a flexible traction member. The transmission assembly includes two transmission members, one transmission member is installed at the top of the frame, and the other transmission member is installed at the top of the frame. The flexible traction member extends around the frame, and the flexible traction member is in transmission cooperation with both of the transmission members. The transport support unit is fixed to the flexible traction member so that the transmission assembly and the flexible traction member are sequentially transmitted to drive the transport support unit.

[0012] Optionally, the transport support unit includes a mounting bracket, a transport support block, and a first bidirectional ratchet assembly. The mounting bracket is fixedly connected to the flexible traction member. The transport support block is installed on the mounting bracket through the first bidirectional ratchet assembly and a first elastic reset member. The transport support block is used to rotate around a horizontally arranged rotating shaft. The first bidirectional ratchet assembly is used to limit the rotation direction of the transport support block, and the first elastic reset member is used to reset the rotated transport support block.

[0013] Optionally, the transport support unit further includes a damping support member. The top end of the damping support member is pivotally connected to the transport support block, and the bottom end of the damping support member is pivotally connected to the mounting bracket.

[0014] Optionally, the transition support unit includes a second bidirectional ratchet assembly and a transition support block. The transition support block is installed on the frame through the second bidirectional ratchet assembly and a second elastic reset member. The transport support block is used to rotate around a horizontally arranged rotating shaft. The second bidirectional ratchet assembly is used to limit the rotation direction of the transition support block, and the second elastic reset member is used to reset the rotated transport support block.

[0015] Optionally, the lifting module includes a plurality of the transport support units, and each of the transport support units is evenly distributed in the extending direction of the flexible traction member.

[0016] Optionally, the lifting module includes a plurality of transition support units, the building module includes a plurality of upper storage units arranged vertically and a plurality of lower storage units arranged vertically, each of the transition support units is an upper transition support unit and a lower transition support unit respectively, the number of the upper transition support units is the same as the number of the upper storage units, the positions of the upper transition support units correspond to the positions of the upper storage units one by one vertically, the number of the lower transition support units is the same as the number of the lower storage units, and the positions of the lower transition support units correspond to the positions of the lower storage units one by one vertically.

[0017] Optionally, the upper storage unit includes an upper transfer device and an upper conveying device. Horizontally, the upper transfer device is located between the upper conveying device and the upper transition support unit, and the upper transfer device is used to transfer the heavy object block between the upper conveying device and the upper transition support unit; the lower storage unit includes a lower transfer device and a lower conveying device. Horizontally, the lower transfer device is located between the lower conveying device and the lower transition support unit, and the lower transfer device is used to transfer the heavy object block between the lower conveying device and the lower transition support unit.

[0018] Optionally, the upper transfer device includes a first vertical lifting assembly and a first horizontal conveying assembly installed on the first vertical lifting assembly. The first vertical lifting assembly is used to drive the first horizontal conveying assembly to move vertically. A first horizontal guiding track is provided on the building main body, and the bottom end of the first vertical lifting assembly is slidably matched with the first horizontal guiding track. The length direction of the first horizontal guiding track is parallel to the arrangement direction of the upper transition support unit, the upper transfer device and the upper conveying device;

[0019] The lower transfer device includes a second vertical lifting assembly and a second horizontal conveying assembly installed on the second vertical lifting assembly. The second vertical lifting assembly is used to drive the second horizontal conveying assembly to move vertically. A second horizontal guiding track is provided on the building main body, and the bottom end of the second vertical lifting assembly is slidably matched with the second horizontal guiding track. The length direction of the second horizontal guiding track is parallel to the arrangement direction of the lower transition support unit, the lower transfer device and the lower conveying device.

[0020] The technical solution provided by this application can achieve at least one of the following beneficial effects:

[0021] The continuous gravity energy storage system provided by the present application can transfer heavy blocks between the building module and the transition support unit, and the transportation support unit can move vertically driven by the lifting unit and transfer heavy blocks to and from the transition support unit during this process. Thus, heavy blocks can be transferred between the transportation support unit and the building module without the transportation support unit stopping, achieving the purpose of continuously transferring heavy blocks from the lower unit to the upper unit for energy storage and continuously transferring heavy blocks from the upper unit to the lower unit for energy release, improving the energy conversion rate.

[0022] The additional technical features and their advantages of the present application will be more clearly described in the following description content, or can be understood through the specific practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the specific embodiments of the present application, the following will briefly introduce the drawings required for the description of the specific embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 Partial front view structural diagram of an embodiment of the continuous gravity energy storage system provided by the embodiment of the present application;

[0025] Figure 2 Partial three-dimensional structural diagram of an embodiment of the continuous gravity energy storage system provided by the embodiment of the present application;

[0026] Figure 3 Three-dimensional structural diagram of an embodiment of the lifting module provided by the embodiment of the present application;

[0027] Figure 4 For Figure 3 Partial enlarged structural diagram at A in

[0028] Figure 5 Front view structural diagram of the upper transfer device installed on the first horizontal guiding track provided by the embodiment of the present application.

[0029] Reference numerals:

[0030] 01, lifting module; 02, upper transfer device;

[0031] 03, heavy block; 04, upper conveying device;

[0032] 05, transition support block; 06, lower transfer device;

[0033] 07, lower conveying device; 08, tractor

[0034] 09. Frame; 10. Transmission member;

[0035] 11. Upper transition support unit; 12. Lower transition support unit;

[0036] 13. First horizontal conveying assembly; 14. First vertical lifting assembly;

[0037] 15. First horizontal guiding track; 16. Transportation support unit;

[0038] 17. Second bidirectional ratchet assembly; 18. First bidirectional ratchet assembly;

[0039] 19. Transportation support block; 20. Mounting frame;

[0040] 21. Damping support member; 22. Flexible traction member. Detailed implementation manner

[0041] The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0042] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0044] Such as Figures 1 to 5As shown in the figure, the present application provides a continuous gravity energy storage system, which includes a building module, a lifting module 01, and a plurality of heavy object blocks 03. The building module includes a building main body, an upper storage unit and a lower storage unit both used for storing the heavy object blocks 03. The upper storage unit and the lower storage unit are both installed on the building main body.

[0045] The lifting module 01 includes a frame 09, a lifting unit, a transportation support unit 16 and a transition support unit all installed on the frame 09.

[0046] The lifting unit is used to drive the transportation support unit 16 to continuously move in the vertical direction relative to the frame 09 and the transition support unit.

[0047] The heavy object block 03 is transmitted between the transportation support unit 16 and the building module through the transition support unit, so as to realize the transmission of the heavy object block 03 between the upper storage unit and the lower storage unit.

[0048] In the continuous gravity energy storage system provided by the present application, the heavy object block 03 can be transmitted between the building module and the transition support unit, and the transportation support unit 16 can move in the vertical direction under the drive of the lifting unit and can transmit the heavy object block 03 with the transition support unit during this process. Furthermore, the heavy object block 03 can be transmitted between the transportation support unit 16 and the building module without the transportation support unit 16 stopping moving, achieving the purpose of continuously transmitting the heavy object block 03 from the lower unit to the upper unit to realize energy storage, and continuously transmitting the heavy object block 03 from the upper unit to the lower unit to realize energy release, thereby improving the energy conversion rate.

[0049] Optionally, the continuous gravity energy storage system provided by the embodiments of the present application includes two lifting modules 01 arranged in mirror symmetry. The two transportation support units 16 that are mirror-symmetric in the two lifting modules 01 are used to convey the same heavy object block 03. That is to say, when conveying a heavy object block 03, one transportation support unit 16 of the two transportation support units 16 that are mirror-symmetric is used to support one side of the heavy object block 03, and the other transportation support unit 16 is used to support the other side of the heavy object block 03. In this way, by setting two lifting modules 01 to jointly convey the heavy object block 03, the safety and reliability of the conveying process can be improved. Of course, only one lifting module 01 can also be set to convey the heavy object block 03. At this time, when conveying the heavy object block 03 between the following horizontal conveying assembly and the transition support block 05, the horizontal conveying assembly and the transition support block 05 can be arranged staggeredly, thereby avoiding interference between the horizontal conveying assembly and the transition support block 05.

[0050] Optionally, the lifting unit includes a transmission assembly and a traction assembly both installed on the frame 09. The traction assembly includes a flexible traction member 22. The transmission assembly includes two transmission members 10. One transmission member 10 is installed at the top of the frame 09, and the other transmission member 10 is installed at the top of the frame 09. The flexible traction member 22 extends around the frame 09, and the flexible traction member 22 is in transmission cooperation with both of the two transmission members 10. The transportation support unit 16 is fixed to the flexible traction member 22 so that the transmission assembly and the flexible traction member 22 are sequentially transmitted to drive the transportation support unit 16. In the embodiment of the present application, the flexible traction member 22 is preferably a transmission chain, a conveyor belt or a traction cable. Correspondingly, the transmission member 10 can be a gear, a pulley or a roller, etc. In this way, the flexible traction member 22 drives the transportation support unit 16 to move vertically on the frame 09. When the transportation support unit 16 moves to the top or bottom of the frame 09, the transportation support unit 16 moves from one side of the frame 09 to the other side along with the flexible traction member 22, thereby realizing the cyclic movement of the transportation support unit 16 around the frame 09 to achieve the purpose of transporting the heavy object block 03 through the transportation support unit 16. In the embodiment of the present application, preferably, the traction assembly further includes a tractor 08. The tractor 08 includes a vehicle body, a roller and a support limiting wheel. There is a vertically extending guide groove on the frame 09, and the support limiting wheel extends into the guide groove and is in sliding cooperation with the guide groove. When the continuous gravity energy storage system adopts a structural form including two of the lifting modules 01 arranged in mirror symmetry, the flexible traction members 22 in the two lifting modules 01 move synchronously, in the same direction and at the same speed through the transmission assembly.

[0051] Such as Figure 4As shown, optionally, the transportation support unit 16 includes a mounting bracket 20, a transportation support block 19, and a first bidirectional ratchet assembly 18. The mounting bracket 20 is fixedly connected to the flexible traction member 22. The transportation support block 19 is mounted on the mounting bracket 20 through the first bidirectional ratchet assembly 18 and a first elastic reset member. The transportation support block 19 is used to rotate around a horizontally arranged rotating shaft. The first bidirectional ratchet assembly 18 is used to limit the rotation direction of the transportation support block 19, and the first elastic reset member is used to reset the rotated transportation support block 19. In this way, when the heavy object block 03 moves to the transportation support unit 16, the heavy object block 03 is supported by limiting the transportation support block 19 through the first bidirectional ratchet assembly 18. When the transportation support unit 16 carries the heavy object block 03 above the transition support unit, the first bidirectional ratchet assembly 18 changes the limiting direction of the transportation support block 19, so that the transportation support block 19 can rotate downward under the action of the heavy object block 03, and then the heavy object block 03 falls onto the transition support unit under the action of gravity and separates completely from the transportation support block 19. After the heavy object block 03 is completely separated from the transportation support block 19, the transportation support block 19 resets under the action of the first elastic reset member. When the transportation support unit 16 passes through the heavy object block 03 that has been placed on the transition support unit from top to bottom, the limiting of the transportation support block 19 by the first bidirectional ratchet assembly 18 enables the transportation support block 19 to only rotate upward. During the process of passing through the heavy object block 03, the transportation support block 19 contacts the heavy object, and the transportation support block 19 rotates upward to avoid it under the action of the heavy object block 03. When the transportation support block 19 completely passes through the position of the heavy object block 03 and moves below the heavy object block 03, it returns to its original position under the action of the first elastic reset member. The transition support unit releases the heavy object block 03, and the transportation support block 19 located below catches and supports the heavy object to carry out the subsequent transportation process of the transportation support block 19. Similarly, when the transportation support unit 16 passes through the heavy object block 03 that has been placed on the transition support unit from top to bottom, the transportation support block 19 can also be limited by the first bidirectional ratchet assembly 18 to only rotate downward, so as to realize the avoidance of the transportation support block 19 for the heavy object block 03 and enable the transportation support unit 16 to pass through smoothly. In the embodiment of the present application, preferably, two flexible traction members 22 are arranged in parallel on the frame 09 in the horizontal direction, and two corresponding ones of the mounting brackets 20 are fixedly connected to the two flexible traction members 22. When the traction assembly includes the above-mentioned tractor 08, two corresponding ones of the mounting brackets 20 are fixedly connected to the two tractors 08. In the embodiment of the present application, the elastic reset member can be a spring or a spring piece and other components.

[0052] Optionally, the transportation support unit 16 further includes a damping support member 21. The top end of the damping support member 21 is pivotally connected to the transportation support block 19, and the bottom end of the damping support member 21 is pivotally connected to the mounting bracket 20. In the embodiment of the present application, the damping support member 21 is preferably a damping cylinder. By providing the damping support member 21, a certain buffer can be formed for the rotation of the transportation support block 19, so that the transportation support block 19 is not easily collided with the mounting bracket 20.

[0053] Optionally, the transition support unit includes a second bidirectional ratchet assembly 17 and a transition support block 05. The transition support block 05 is mounted on the frame 09 through the second bidirectional ratchet assembly 17 and a second elastic reset member. The transportation support block 19 is configured to rotate about a horizontally arranged rotating shaft. The second bidirectional ratchet assembly 17 is used to limit the rotation direction of the transition support block 05, and the second elastic reset member is used to reset the rotated transportation support block 19. In this way, when the heavy object block 03 moves to the transition support block 05, the second bidirectional ratchet assembly 17 limits the transition support block 05 to support the heavy object block 03. When the transportation support unit 16 moves below the transition support unit, the second bidirectional ratchet assembly 17 changes the limiting direction of the transition support block 05, so that the transition support block 05 can rotate downward under the action of the heavy object block 03, and then the heavy object block 03 falls off the transition support block 05 under the action of gravity and drops onto the transportation support unit 16 (specifically, it can drop onto the transportation support block 19). After the heavy object block 03 is completely separated from the transition support block 05, the transition support block 05 is reset under the action of the second elastic reset member; when the transportation support unit 16 moves upward with the heavy object block 03 and passes by the transition support block 05, the second bidirectional ratchet assembly 17 is controlled to limit the transition support block 05 so that the transition support block 05 can only rotate upward and cannot rotate downward. When the heavy object block 03 contacts the transition support block 05, the transition support block 05 gradually rotates upward under the action of the heavy object block 03 to avoid the heavy object block 03. After the heavy object block 03 passes through the position where the transition support block 05 is located and is completely separated from the transition support block 05, the transition support block 05 is reset under the action of the second elastic reset member; similarly, when the transportation support unit 16 moves downward with the heavy object block 03 and passes by the transition support block 05, the second bidirectional ratchet assembly 17 is controlled to limit the transition support block 05 so that the transition support block 05 can only rotate downward and cannot rotate upward, thereby realizing the avoidance of the heavy object block 03 and enabling the heavy object block 03 to pass smoothly. In the embodiment of the present application, preferably, the transition support unit includes two transition support blocks 05 both connected to the second bidirectional ratchet assembly 17. The two transition support blocks 05 are arranged along the axial direction of the rotating shaft and are disposed on both sides of the transportation support unit 16; preferably, a damping support member 21 is provided between the transition support block 05 and the frame 09, so as to buffer the rotation of the transition support block 05.

[0054] In the embodiments of the present application, both the first bidirectional ratchet assembly 18 and the second bidirectional ratchet assembly 17 include an electric bidirectional ratchet mechanism, and the electric direction is reversed. In the embodiments of the present application, both the first bidirectional ratchet assembly 18 and the second bidirectional ratchet assembly 17 can be replaced by a motor to drive the transport support block 19 to rotate.

[0055] Optionally, the lifting module 01 includes a plurality of the transport support units 16, and each of the transport support units 16 is evenly distributed in the extending direction of the flexible traction member 22. When the height of the frame 09 is relatively large, the plurality of transport support units 16 facilitate the continuous and efficient conveyance of the heavy object block 03. Of course, when the height of the frame 09 is relatively small, the lifting module 01 may also include only one transport support unit 16, and the transport support unit 16 is moved quickly to achieve the continuous conveyance of the heavy object block 03.

[0056] Optionally, the lifting module 01 includes a plurality of transition support units, the building module includes a plurality of the upper storage units arranged in the vertical direction and a plurality of the lower storage units arranged in the vertical direction, each of the transition support units is respectively an upper transition support unit 11 and a lower transition support unit 12, the number of the upper transition support units 11 is the same as the number of the upper storage units, the positions of each of the upper transition support units correspond to the positions of each of the upper storage units in the vertical direction one by one, the number of the lower transition support units 12 is the same as the number of the lower storage units, and the positions of each of the lower transition support units correspond to the positions of each of the lower storage units in the vertical direction one by one. In this way, the heavy object block 03 can be simultaneously transmitted between each of the upper transition support units 11 and each of the upper storage units, the heavy object block 03 can be simultaneously transmitted between each of the upper transition support units 11 and each of the transport support units 16, the heavy object block 03 can be simultaneously transmitted between each of the lower transition support units 12 and each of the lower storage units, and the heavy object block 03 can be simultaneously transmitted between each of the lower transition support units 12 and each of the transport support units 16, thereby improving the transport efficiency of the heavy object block 03. Of course, the number of the upper transition support units 11 can be more than the number of the upper storage units, and the number of the lower transition support units 12 can be more than the number of the lower storage units.

[0057] Preferably, in the embodiments of the present application, the number of the transport support units 16 in one lifting module 01 is not less than the number of the transition support units, and the number of the transport support units 16 in one lifting module 01 is also not less than the sum of the number of the upper storage units and the number of the lower storage units. Of course, the number of the transport support units 16 in one lifting module 01 can also be not more than the number of the transition support units, and / or, the number of the transport support units 16 in one lifting module 01 can also be not more than the sum of the number of the upper storage units and the number of the lower storage units. The plurality described in the embodiments of the present application means at least two.

[0058] Optionally, the upper storage unit includes an upper transfer device 02 and an upper conveying device 04. Horizontally, the upper transfer device 02 is located between the upper conveying device 04 and the upper transition support unit 11. The upper transfer device 02 is configured to transfer the heavy object block 03 between the upper conveying device 04 and the upper transition support unit 11. The lower storage unit includes a lower transfer device 06 and a lower conveying device 07. Horizontally, the lower transfer device 06 is located between the lower conveying device 07 and the lower transition support unit 12. The lower transfer device 06 is configured to transfer the heavy object block 03 between the lower conveying device 07 and the lower transition support unit 12. The upper conveying device 04 is configured to convey the heavy object block 03 stored in the upper storage unit to the upper transfer device 02. The upper transfer device 02 is configured to send the heavy object block 03 received from the upper conveying device 04 to the upper transition support unit 11. The upper transfer device 02 is further configured to obtain the heavy object block 03 from the upper transition support unit 11, send the heavy object block 03 to the upper conveying device 04, and then the upper conveying device 04 sends it to the position in the upper storage unit for stacking the heavy object block 03. The lower conveying device 07 is configured to convey the heavy object block 03 stored in the lower storage unit to the lower transfer device 06. The lower transfer device 06 is configured to send the heavy object block 03 received from the lower conveying device 07 to the lower transition support unit 12. The lower transfer device 06 is further configured to obtain the heavy object block 03 from the lower transition support unit 12, send the heavy object block 03 to the upper conveying device 04, and then the lower conveying device 07 sends it to the position in the lower storage unit for stacking the heavy object block 03. In the embodiment of the present application, both the upper conveying device 04 and the lower conveying device 07 are preferably roller conveying devices or conveyor belts.

[0059] Optionally, the upper transfer device 02 includes a first vertical lifting component 14 and a first horizontal conveying component 13 installed on the first vertical lifting component 14. The first vertical lifting component 14 is used to drive the first horizontal conveying component 13 to move in the vertical direction. A first horizontal guiding track 15 is provided on the building main body. The bottom end of the first vertical lifting component 14 is slidably engaged with the first horizontal guiding track 15. The length direction of the first horizontal guiding track 15 is parallel to the arrangement direction of the upper transition support unit 11, the upper transfer device 02, and the upper conveying device 04. During the energy storage stage, when the upper transfer device 02 obtains the heavy object block 03 from the upper transition support unit 11, the upper transfer device 02 is moved along the first horizontal guiding track 15 towards the upper transition support unit 11, so that one end of the first horizontal conveying component 13 moves below the heavy object block 03 on the transition support unit. Control the first vertical lifting component 14 to raise the first horizontal conveying component 13. The first horizontal conveying component 13 jacks up the heavy object block 03 to separate the heavy object block 03 from the upper transition support unit 11. Control the upper transfer device 02 to move along the first horizontal guiding track 15 in a direction away from the upper transition support unit 11. Control the first vertical lifting component 14 to lower the first horizontal conveying component 13 and the heavy object block 03 on the first horizontal conveying component 13 until the height of the first horizontal conveying component 13 corresponds to the height of the upper conveying device 04. The first horizontal conveying component 13 moves the heavy object block 03 to the upper conveying device 04, and the upper conveying device 04 moves the heavy object block 03 to the stacking position. During the energy release stage, the heavy object block 03 is conveyed from the stacking position to the first horizontal conveying component 13 by the upper conveying device 04. The first vertical lifting component 14 jacks up the first horizontal conveying component 13 and the heavy object block 03 on the first horizontal conveying component 13. The upper transfer device 02 moves along the first horizontal guiding track 15 towards the upper transition support unit 11, and moves the heavy object block 03 above the upper transition support unit 11. Control the first vertical lifting component 14 to gradually lower the first horizontal conveying component 13 and the heavy object block 03, so that the heavy object block 03 falls onto the upper transition support unit 11 (specifically, onto the transition support block 05), and waits to move the heavy object block 03 to the transportation support unit 16.

[0060] The lower-level transfer device 06 includes a second vertical lifting component and a second horizontal conveying component installed on the second vertical lifting component. The second vertical lifting component is used to drive the second horizontal conveying component to move in the vertical direction. A second horizontal guiding track is provided on the building main body. The bottom end of the second vertical lifting component is slidably engaged with the second horizontal guiding track. The length direction of the second horizontal guiding track is parallel to the arrangement direction of the lower-level transition support unit 12, the lower-level transfer device 06, and the lower-level conveying device 07. During the energy storage stage, the heavy object block 03 is conveyed from the stacking position to the second horizontal conveying component by the lower-level conveying device 07. The second vertical lifting component lifts the second horizontal conveying component and the heavy object block 03 on the second horizontal conveying component. The lower-level transfer device 06 moves along the second horizontal guiding track towards the transition support unit, moves the heavy object block 03 above the lower-level transition support unit 12, and controls the second vertical lifting component to gradually lower the second horizontal conveying component and the heavy object block 03, so that the heavy object block 03 falls onto the lower-level transition support unit 12 (specifically, onto the transition support block 05), waiting to move the heavy object block 03 to the transportation support unit 16. During the energy release stage, when the lower-level transfer device 06 obtains the heavy object block 03 from the lower-level transition support unit 12, it moves the lower-level transfer device 06 along the second horizontal guiding track towards the lower-level transition support unit 12, so that one end of the second horizontal conveying component moves below the heavy object block 03 on the transition support unit. Control the second vertical lifting component to raise the second horizontal conveying component. The second horizontal conveying component jacks up the heavy object block 03 to separate the heavy object block 03 from the lower-level transition support unit 12. Control the lower-level transfer device 06 to move along the second horizontal guiding track in a direction away from the lower-level transition support unit 12. Control the second vertical lifting component to lower the second horizontal conveying component and the heavy object block 03 on the second horizontal conveying component until the height of the second horizontal conveying component corresponds to the height of the lower-level conveying device 07. The second horizontal conveying component moves the heavy object block 03 to the lower-level conveying device 07, and the lower-level conveying device 07 moves the heavy object block 03 to the stacking position.

[0061] In the embodiments of the present application, both the first horizontal conveying component 13 and the second horizontal conveying component are preferably roller conveying devices or conveyor belts, and both the first vertical lifting component 14 and the second vertical lifting component are preferably scissor lifts.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. Continuous gravity energy storage system, characterized in that, It includes a building module, a lifting module and a plurality of heavy blocks. The building module includes a building main body, an upper storage unit and a lower storage unit both for storing the heavy blocks, and the upper storage unit and the lower storage unit are both installed on the building main body. The lifting module includes a frame, a lifting unit, a transportation support unit and a transition support unit all installed on the frame. The lifting unit is used to drive the transportation support unit to continuously move in the vertical direction relative to the frame and the transition support unit. The heavy blocks are transmitted between the transportation support unit and the building module through the transition support unit, so as to realize the transmission of the heavy blocks between the upper storage unit and the lower storage unit.

2. The continuous gravity energy storage system according to claim 1, wherein, It includes two lifting modules arranged in mirror symmetry, and the two transportation support units that are mirror-symmetrical in the two lifting modules are used to transport the same heavy block.

3. The continuous gravity energy storage system according to claim 1, characterized in that, The lifting unit includes a transmission component and a traction component both installed on the frame. The traction component includes a flexible traction member. The transmission component includes two transmission members, one transmission member is installed at the top of the frame, and the other transmission member is installed at the top of the frame. The flexible traction member extends around the frame, and the flexible traction member is in transmission cooperation with both of the two transmission members. The transportation support unit is fixed to the flexible traction member, so that the transmission component and the flexible traction member are sequentially transmitted to drive the transportation support unit.

4. The continuous gravity energy storage system according to claim 3, characterized in that, The transportation support unit includes a mounting frame, a transportation support block and a first bi-directional ratchet assembly. The mounting frame is fixedly connected to the flexible traction member. The transportation support block is installed on the mounting frame through the first bi-directional ratchet assembly and a first elastic reset member. The transportation support block is used to rotate around a horizontally arranged rotating shaft. The first bi-directional ratchet assembly is used to limit the rotation direction of the transportation support block, and the first elastic reset member is used to reset the rotated transportation support block.

5. The continuous gravity energy storage system according to claim 4, wherein, The transportation support unit further includes a damping support member. The top end of the damping support member is pivotally connected to the transportation support block, and the bottom end of the damping support member is pivotally connected to the mounting frame.

6. The continuous gravity energy storage system according to claim 5, characterized in that, The transition support unit includes a second bi-directional ratchet assembly and a transition support block. The transition support block is installed on the frame through the second bi-directional ratchet assembly and a second elastic reset member. The transportation support block is used to rotate around a horizontally arranged rotating shaft. The second bi-directional ratchet assembly is used to limit the rotation direction of the transition support block, and the second elastic reset member is used to reset the rotated transportation support block.

7. The continuous gravity energy storage system according to any one of claims 3 to 6, characterized in that, The lifting module includes a plurality of the transportation support units, and each of the transportation support units is evenly distributed in the extending direction of the flexible traction member.

8. The continuous gravity energy storage system according to claim 7, wherein, The lifting module includes a plurality of transition support units. The building module includes a plurality of the upper storage units arranged vertically and a plurality of the lower storage units arranged vertically. Each of the transition support units is an upper transition support unit and a lower transition support unit respectively. The number of the upper transition support units is the same as the number of the upper storage units, and the positions of each of the upper transition support units and the positions of each of the upper storage units correspond one-to-one in the vertical direction. The number of the lower transition support units is the same as the number of the lower storage units, and the positions of each of the lower transition support units and the positions of each of the lower storage units correspond one-to-one in the vertical direction.

9. The continuous gravity energy storage system according to claim 8, wherein, The upper storage unit includes an upper transfer device and an upper conveying device. Horizontally, the upper transfer device is located between the upper conveying device and the upper transition support unit, and the upper transfer device is used to convey the heavy object block between the upper conveying device and the upper transition support unit; the lower storage unit includes a lower transfer device and a lower conveying device. Horizontally, the lower transfer device is located between the lower conveying device and the lower transition support unit, and the lower transfer device is used to convey the heavy object block between the lower conveying device and the lower transition support unit.

10. The continuous gravity energy storage system according to claim 9, characterized in that, The upper transfer device includes a first vertical lifting assembly and a first horizontal conveying assembly installed on the first vertical lifting assembly. The first vertical lifting assembly is used to drive the first horizontal conveying assembly to move in the vertical direction. A first horizontal guiding track is provided on the building main body, and the bottom end of the first vertical lifting assembly is slidably matched with the first horizontal guiding track. The length direction of the first horizontal guiding track is parallel to the arrangement direction of the upper transition support unit, the upper transfer device and the upper conveying device; the lower transfer device includes a second vertical lifting assembly and a second horizontal conveying assembly installed on the second vertical lifting assembly. The second vertical lifting assembly is used to drive the second horizontal conveying assembly to move in the vertical direction. A second horizontal guiding track is provided on the building main body, and the bottom end of the second vertical lifting assembly is slidably matched with the second horizontal guiding track. The length direction of the second horizontal guiding track is parallel to the arrangement direction of the lower transition support unit, the lower transfer device and the lower conveying device.

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