Gravity energy storage system

Abstract

The invention relates to the technical field of gravity energy storage, in particular to a gravity energy storage system, a vertical transportation module, a weight transfer module, a weight storage module and a weight block, the weight storage module comprises an upper-layer storage unit and a lower-layer storage unit, and the vertical transportation module comprises a conveying unit and a supporting unit. The conveying unit is used for driving the supporting unit to move in the vertical direction so as to convey the weight blocks in the vertical direction, and the weight transferring module is used for taking down the weight blocks conveyed through the supporting unit and conveying the weight blocks to the weight storage module. The weight transferring module is further used for conveying the weight blocks on the weight storage module to the supporting unit moving in the vertical direction so that the weight blocks can be transported between the upper-layer storage unit and the lower-layer storage unit. The invention aims to provide a 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 gravity energy storage system. Background Art

[0002] Currently, relatively mature energy storage technologies in the prior art include battery energy storage, pumped hydro energy storage, compressed air energy storage, etc. Energy storage systems mainly perform peak shaving and frequency modulation for renewable energy to avoid energy waste caused by the mismatch between renewable energy power generation resources and power loads. Gravity energy storage technology uses surplus energy to endow a certain mass object with potential energy and store it to complete energy storage, and then the potential energy can be converted back into electric energy and other energies by releasing the object. Due to advantages such as low cost per kilowatt-hour and flexible site selection, gravity energy storage has gradually received attention in the energy storage technology field and has been applied to a certain extent. However, when implementing existing gravity energy storage technologies, the efficiency of transporting heavy objects is relatively low, which in turn leads to a low energy conversion rate. Summary of the Invention

[0003] The purpose of this application is to provide a gravity energy storage system for at least one technical problem involved in the background art.

[0004] To achieve the above purpose, this application adopts the following technical solutions: This application provides a gravity energy storage system, including a vertical transportation module, a heavy object transfer module, a heavy object storage module, and heavy object blocks. The heavy object storage module includes an upper storage unit and a lower storage unit. The vertical transportation module includes a conveying unit and a supporting unit. The conveying unit is used to drive the supporting unit to move in the vertical direction to convey the heavy object blocks in the vertical direction. The heavy object transfer module is used to remove the heavy object blocks conveyed by the supporting unit and send them to the heavy object storage module. The heavy object transfer module is also used to send the heavy object blocks on the heavy object storage module to the supporting unit moving in the vertical direction to realize the transportation of the heavy object blocks between the upper storage unit and the lower storage unit.

[0005] Optionally, the conveying unit includes a first frame and a flexible transmission member installed on the first frame. The length direction of the flexible transmission member is parallel to the vertical direction. The flexible transmission member is used to travel around the first frame, and the supporting unit is fixed to the flexible transmission member.

[0006] Optionally, the conveying unit includes two flexible transmission members. The vertical transportation module includes multiple supporting units. At least one supporting unit is respectively installed on each of the two flexible transmission members. The supporting units on one flexible transmission member are used to cooperate with the supporting units on the other flexible transmission member to support the heavy object blocks.

[0007] Optionally, the movement trajectory of the flexible transmission member on the first frame includes two straight line segments extending in the vertical direction. The two straight line segments of the movement trajectory of one flexible transmission member are respectively a first straight line segment and a second straight line segment, and the two straight line segments of the movement trajectory of the other flexible transmission member are respectively a third straight line segment and a fourth straight line segment. The first straight line segment, the second straight line segment, the third straight line segment, and the fourth straight line segment are arranged in sequence in a first direction. The circumferential direction of one flexible transmission member on the first frame is opposite to that of the other flexible transmission member, so that the support unit on the second straight line segment and the support unit on the third straight line segment move synchronously and in the same direction. The first direction is parallel to the direction in which the vertical transportation module, the heavy object transfer module, and the heavy object storage module are arranged in sequence, and the first direction is parallel to the horizontal direction.

[0008] Optionally, the part of one flexible transmission member located on the second straight line segment is in transmission cooperation with the part of the other flexible transmission member located on the third straight line segment.

[0009] Optionally, a guiding groove is formed on the first frame. The flexible transmission member is located in the guiding groove, and the flexible transmission member is in rolling cooperation with the inner wall of the guiding groove.

[0010] Optionally, the gravity energy storage system provided by the present application includes two vertical transportation modules. The two vertical transportation modules are arranged in mirror symmetry in a second direction. In the second direction, each support unit is located between the two conveying units. The second direction is perpendicular to the first direction, and the second direction is parallel to the horizontal direction.

[0011] Optionally, the gravity energy storage system provided by the present application further includes a second frame. The heavy object transfer module and the heavy object storage module are both installed on the second frame. The heavy object transfer module includes an upper transfer unit. The upper transfer unit includes a first horizontal movement component, a first horizontal guiding track, a vertical lifting component, and a first transverse conveying component installed on the vertical lifting component. The vertical lifting component is used to drive the first transverse conveying component to move in the vertical direction. The first horizontal guiding track is installed on the second frame. The bottom end of the vertical lifting component is in rolling cooperation with the first horizontal guiding track in the first direction. The first horizontal movement component is used to drive the vertical lifting component and the first transverse conveying component to move along the first horizontal guiding track in the first direction. The first direction is parallel to the direction in which the vertical transportation module, the heavy object transfer module, and the heavy object storage module are arranged in sequence, and the first direction is parallel to the horizontal direction.

[0012] Optionally, the heavy object transfer module further includes a lower-layer transfer unit, and the lower-layer transfer unit includes a second horizontal guiding track and a second lateral conveying assembly. The second horizontal guiding track is installed on the second frame, and the bottom end of the second lateral conveying assembly is in rolling cooperation with the second horizontal guiding track in the first direction.

[0013] Optionally, the heavy object transfer module includes a plurality of upper-layer transfer units and a plurality of lower-layer transfer units that are all arranged vertically. Each upper-layer transfer unit is located above each lower-layer transfer unit. The number of upper-layer transfer units is the same as the number of lower-layer transfer units. The heavy object storage module includes a plurality of upper-layer storage units and a plurality of lower-layer storage units that are all arranged vertically. Each upper-layer storage unit is located above each lower-layer storage unit. Each upper-layer transfer unit and each upper-layer storage unit are used to transfer the heavy object blocks in the first direction in a one-to-one correspondence. Each lower-layer transfer unit and each lower-layer storage unit are used to transfer the heavy object blocks in the first direction in a one-to-one correspondence. The first direction is parallel to the direction in which the vertical transportation module, the heavy object transfer module, and the heavy object storage module are arranged in sequence. The first direction is parallel to the horizontal direction.

[0014] The technical solution provided by this application can achieve at least one of the following beneficial effects: In the gravity energy storage system provided by this application, the heavy object transfer module takes the heavy object blocks from the support unit, and also sends the heavy object blocks on the heavy object storage module to the support unit that moves vertically through the heavy object transfer module, so as to achieve the purpose of transporting the heavy object blocks between the upper-layer storage units and the lower-layer storage units. During the process of taking the heavy object blocks from the vertical transportation module and the process of placing the heavy object blocks on the vertical transportation module, there is no need to decelerate the vertical transportation module or stop the operation and movement of the vertical transportation module, thereby obtaining a high transportation efficiency of the heavy object blocks, improving the energy conversion efficiency, and facilitating the stable power generation of the power generation system.

[0015] The additional technical features and their advantages of this application will be more clearly described in the following description content, or can be understood through the specific practice of this application. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the specific embodiments of this application, the drawings required for the description of the specific embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1Partial perspective structural view of an embodiment of the gravity energy storage system provided by the embodiment of the present application; Figure 2 Partial front structural view of an embodiment of the gravity energy storage system provided by the embodiment of the present application; Figure 3 Partial front structural view of an embodiment of the vertical transportation module provided by the embodiment of the present application; Figure 4 For Figure 3 Partial enlarged structural view at position A in Figure 5 Partial top structural view of an embodiment of the gravity energy storage system provided by the embodiment of the present application; Figure 6 Perspective structural view of an embodiment of the gravity energy storage system provided by the embodiment of the present application.

[0018] Reference numerals: 01, vertical transportation module; 02, upper transfer unit; 03, heavy object block; 04, upper storage unit; 05, lower transfer unit; 06, lower storage unit; 07, flexible transmission member; 08, first frame; 09, first transverse conveying assembly; 10, vertical lifting assembly; 11, first horizontal guiding track; 12, support unit; 13, second transverse conveying assembly; 14, driving wheel; 15, second frame; 16, first straight section; 17, fourth straight section; 18, third straight section; 19, second straight section; 20, driven transmission wheel. Detailed implementation manners

[0019] 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 some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present application belong to the scope of protection of the present application.

[0020] 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. It 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 therefore 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.

[0021] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" 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.

[0022] As Figures 1 to 6 shown, when the existing gravity energy storage system is implemented, when the device for vertically transporting the heavy object block 03 grabs and releases the heavy object block 03, in order to accurately position, it often needs to move slowly or stop moving. After grabbing or releasing the heavy object block 03 and then accelerating again or starting to move, this results in a low transportation efficiency of the heavy object block 03, and thus a low energy conversion rate, and is also not conducive to the stable power generation of the power generation system.

[0023] The present application provides a gravity energy storage system, a vertical transportation module 01, a heavy object transfer module, a heavy object storage module and a heavy object block 03. The heavy object storage module includes an upper storage unit 04 and a lower storage unit 06. The vertical transportation module 01 includes a transportation unit and a support unit 12. The transportation unit is used to drive the support unit 12 to move in the vertical direction to transport the heavy object block 03 in the vertical direction. The heavy object transfer module is used to remove the heavy object block 03 transported by the support unit 12 and send it to the heavy object storage module. The heavy object transfer module is also used to send the heavy object block 03 on the heavy object storage module to the support unit 12 moving in the vertical direction to realize the transportation of the heavy object block 03 between the upper storage unit 04 and the lower storage unit 06.

[0024] It can be understood that the upper storage unit 04 is located above the lower storage unit 06.

[0025] The gravity energy storage system provided by the present application removes the heavy object block 03 from the support unit 12 through the heavy object transfer module, and also sends the heavy object block 03 on the heavy object storage module to the support unit 12 that moves in the vertical direction through the heavy object transfer module, so as to achieve the purpose of transporting the heavy object block 03 between the upper storage unit 04 and the lower storage unit 06. During the process of removing the heavy object block 03 from the vertical transportation module 01 and the process of placing the heavy object block 03 on the vertical transportation module 01, there is no need to decelerate the vertical transportation module 01 or stop the operation and movement of the vertical transportation module 01, thereby obtaining a high conveying efficiency of the heavy object block 03, improving the energy conversion efficiency, and facilitating the stable power generation of the power generation system.

[0026] Optionally, the conveying unit includes a first frame 08 and a flexible transmission member 07 installed on the first frame 08. The length direction of the flexible transmission member 07 is parallel to the vertical direction. The flexible transmission member 07 is used to travel around the first frame 08, and the support unit 12 is fixed to the flexible transmission member 07. In this way, the movement of the support unit 12 in the vertical direction is realized, and thus the movement of the heavy object block 03 provided on the support unit 12 in the vertical direction is realized. In the embodiment of the present application, the flexible transmission member 07 is a transmission chain or a conveyor belt. Correspondingly, chain drive or belt drive is realized in the vertical direction, and the transmission direction of the chain drive or belt drive is changed by changing the rotation direction of the driving member; the above-mentioned traveling includes clockwise transmission and counterclockwise transmission.

[0027] Optionally, the conveying unit includes two flexible transmission members 07, and the vertical transportation module 01 includes a plurality of support units 12. At least one support unit 12 is respectively installed on each of the two flexible transmission members 07. The support unit 12 on one flexible transmission member 07 is used to cooperate with the support unit 12 on the other flexible transmission member 07 to support the heavy object block 03. By combining two support units 12 respectively located on two flexible transmission members 07 to form a pair of support pairs to support the heavy object block 03, the stability and reliability of transporting the heavy object block 03 can be improved. Of course, each support unit 12 on the two flexible transmission members 07 can also independently support the heavy object block 03.

[0028] Such as Figure 3As shown, optionally, the movement trajectory of the flexible transmission member 07 on the first frame 08 includes two straight line segments extending in the vertical direction. The two straight line segments of the movement trajectory of one flexible transmission member 07 are the first straight line segment 16 and the second straight line segment 19 respectively, and the two straight line segments of the movement trajectory of the other flexible transmission member 07 are the third straight line segment 18 and the fourth straight line segment 17 respectively. The first straight line segment 16, the second straight line segment 19, the third straight line segment 18, and the fourth straight line segment 17 are arranged in sequence in the first direction. The circumferential direction of one flexible transmission member 07 on the first frame 08 is opposite to that of the other flexible transmission member 07, so that the support unit 12 on the second straight line segment 19 and the support unit 12 on the third straight line segment 18 move synchronously and in the same direction. The first direction is parallel to the direction in which the vertical transportation module 01, the heavy object transfer module, and the heavy object storage module are arranged in sequence, and the first direction is parallel to the horizontal direction. It can be understood that when a plurality of support units 12 are installed on both flexible transmission members 07, a plurality of the above-mentioned support pairs can be formed at the positions of the first straight line segment 16 and the second straight line segment 19; the support unit 12 on the first straight line segment 16 and the support unit 12 on the fourth straight line segment 17 also move synchronously and in the same direction. Of course, the two flexible transmission members 07 can also be arranged oppositely on the first frame 08, and the circumferential directions of the two flexible transmission members 07 are the same, and the support units 12 on the two flexible transmission members 07 move synchronously and in the same direction.

[0029] Optionally, the part of one flexible transmission member 07 located on the second straight line segment 19 is in transmission cooperation with the part of the other flexible transmission member 07 located on the third straight line segment 18. This makes it easier for the two flexible transmission members 07 to have the same moving speed, thereby improving the synchronism of the support units 12 respectively located on the two flexible transmission members 07 and improving the stability of transporting the heavy object block 03. In the embodiment of the present application, a plurality of teeth can be evenly distributed on the outer edge of the flexible transmission member 07, and the two flexible transmission members 07 are in transmission cooperation through the meshing between the teeth. Alternatively, a plurality of evenly distributed hooks are installed on the outer edge of one flexible transmission member 07, and a plurality of evenly distributed hanging rings are installed on the outer edge of the other flexible transmission member 07. When on the second straight line segment 19 and the third straight line segment 18, the hooks cooperate with the hanging rings, and when outside the second straight line segment 19 and the third straight line segment 18, the hooks are separated from the hanging rings. Of course, the two flexible transmission members 07 can also be respectively in cooperation with the driving member, rather than in transmission cooperation between the two flexible transmission members 07, to achieve relatively independent movements.

[0030] Optionally, a guiding groove is formed on the first frame 08, and the flexible transmission member 07 is located in the guiding groove, and the flexible transmission member 07 is in rolling cooperation with the inner wall of the guiding groove. By providing the guiding groove to guide the flexible transmission member 07, the stability of the movement of the flexible transmission member 07 can be improved, and further the stability and safety of transporting heavy objects can be improved. In the embodiment of the present application, the flexible transmission member 07 can be installed on the first frame 08 through a transmission shaft, and the flexible transmission member 07 is supported by the transmission shaft. In the embodiment of the present application, preferably, a transmission tooth is formed on the inner edge of the flexible transmission member 07, and the gravity energy storage system further includes a transmission wheel. The transmission wheel is embedded in the first frame 08, and an opening is provided on the inner wall of the guiding groove so that the transmission wheel can be in transmission cooperation with the upper side of the inner edge of the flexible transmission member 07 through the opening. The transmission wheel is in transmission connection with the driving member. The transmission wheel is divided into a driving transmission wheel 14 and a driven transmission wheel 20. The driving transmission wheel 14 is located above the driven transmission wheel 20. The driving member can be a motor or a generator.

[0031] As Figure 5 shown, optionally, the gravity energy storage system provided by the embodiment of the present application includes two vertical transportation modules 01. The two vertical transportation modules 01 are arranged in mirror symmetry in the second direction. In the second direction, each support unit 12 is located between the two conveying units. The second direction is perpendicular to the first direction and the second direction is parallel to the horizontal direction. That is to say, the gravity energy storage system provided by the present application can realize that the same heavy object block 03 can be supported and transported simultaneously by two support units 12 installed on one conveying unit and two support units 12 installed on another conveying unit, further improving the stability and safety of supporting and transporting the heavy object block 03. In the embodiment of the present application, preferably, the driving transmission wheels 14 of the two vertical transportation modules 01 are coaxially connected, and the driven transmission wheels 20 of the two vertical transportation modules 01 are coaxially connected, so as to rotate synchronously and make each flexible transmission member 07 move synchronously.

[0032] As Figure 2As shown, optionally, the gravity energy storage system provided by the embodiments of the present application further includes a second frame 15. Both the heavy object transfer module and the heavy object storage module are installed on the second frame 15. The heavy object transfer module includes an upper transfer unit 02. The upper transfer unit 02 includes a first horizontal movement component, a first horizontal guiding track 11, a vertical lifting component 10, and a first transverse conveying component 09 installed on the vertical lifting component 10. The vertical lifting component 10 is used to drive the first transverse conveying component 09 to move in the vertical direction. The first horizontal guiding track 11 is installed on the second frame 15. The bottom end of the vertical lifting component 10 is in rolling cooperation with the first horizontal guiding track 11 in a first direction. The first horizontal movement component is used to drive the vertical lifting component 10 and the first transverse conveying component 09 to move along the first horizontal guiding track 11 in the first direction. The first direction is parallel to the direction in which the vertical transportation module 01, the heavy object transfer module, and the heavy object storage module are arranged in sequence, and the first direction is parallel to the horizontal direction. During the energy storage stage, the conveying unit drives the support unit 12 and the heavy object block 03 on the support unit 12 to gradually rise. When the heavy object block 03 rises to a position corresponding to the position of the first transverse conveying component 09, control the first horizontal movement component to drive the vertical lifting component 10 and the first transverse conveying component 09 to move along the first horizontal guiding track 11 towards the vertical transportation module 01. After the first horizontal conveying component moves below the heavy object block 03, control the lifting component to raise the first transverse conveying component 09. The rising speed of the lifting component is greater than the rising speed of the support unit 12. When the heavy object block 03 is lifted a certain distance above the support unit 12, control the first horizontal movement component to drive the vertical lifting component 10, the first transverse conveying component 09, and the heavy object block 03 to move along the first horizontal guiding track 11 to a preset horizontal position near the heavy object storage module. Control the vertical lifting component 10 to lower the first transverse conveying component 09 and the heavy object block 03 to a preset height, and start the first transverse conveying component 09 to transfer the heavy object block 03 to the heavy object storage module; during the energy release stage, the heavy object storage module moves the heavy object block 03 to the first transverse conveying component 09, control the vertical lifting component 10 to raise the first transverse conveying component 09 and the heavy object block 03 by a certain height. When the support unit 12 moves downward to a position corresponding to the height of the first transverse conveying component 09, control the first horizontal movement component to translate the heavy object block 03 above the support unit 12, and control the vertical lifting component 10 to drive the first transverse conveying component 09 and the heavy object block 03 to descend. The descending speed of the lifting component 10 is greater than the descending speed of the support unit 12. When the heavy object block 03 contacts the support unit 12, the first transverse conveying component 09 separates from the heavy object block 03. When the first transverse conveying component 09 descends to a preset height, control the first horizontal movement component to drive the vertical lifting component 10 and the first transverse conveying component 09 to move towards the direction close to the heavy object storage module to a preset horizontal position.

[0033] Optionally, the heavy object transfer module further includes a lower-layer transfer unit 05. The lower-layer transfer unit 05 includes a second horizontal movement assembly, a second horizontal guiding track, and a second transverse conveying assembly 13. The second horizontal guiding track is installed on the second frame 15. The bottom end of the second transverse conveying assembly 13 is in rolling cooperation with the second horizontal guiding track in the first direction. The second horizontal movement assembly is used to drive the second transverse conveying assembly to move along the second horizontal guiding track in the first direction. During the energy storage stage, the heavy object storage module transports the heavy object block 03 to the second transverse conveying assembly 13, controls the second horizontal movement assembly to carry the second transverse conveying assembly 13 and the heavy object block 03 to move along the second horizontal guiding track towards the vertical transportation module 01, moves the heavy object block 03 above the ascending support unit 12. When the support unit 12 ascends to contact the heavy object block 03, the heavy object block 03 can be jacked up and gradually ascended. When the heavy object block 03 ascends to a position corresponding to the height of the upper storage unit 04, the upper transfer unit 02 takes away and stores the heavy object block 03; during the energy release stage, controls the second horizontal movement assembly to move the empty second transverse conveying assembly 13 along the second horizontal guiding track towards the vertical transportation module 01, and moves the empty second transverse conveying assembly 13 below the heavy object block 03 that gradually descends with the support unit 12. After the heavy object block 03 contacts the second transverse conveying assembly 13 and separates from the support unit 12, controls the second horizontal movement assembly to move the second transverse conveying assembly 13 in the direction close to the heavy object storage module to a preset horizontal position, and the second transverse conveying assembly 13 starts to transport the heavy object block 03 to the heavy object storage module. Of course, in the embodiment of the present application, the lower-layer transfer unit 05 can also adopt the same structural form as the upper-layer transfer unit 02.

[0034] In the embodiment of the present application, preferably, both the first transverse conveying assembly 09 and the second transverse conveying assembly 13 adopt a roller conveying device or a conveyor belt, and the vertical lifting assembly 10 is a scissor lift; preferably, both the upper storage unit 04 and the lower storage unit 06 adopt a roller conveying device or a conveyor belt. The upper storage unit 04 transports the heavy object block 03 with the upper transfer unit 02, and the lower storage unit 06 transports the heavy object block 03 with the lower transfer unit 05. In the embodiment of the present application, the first horizontal movement assembly and the second horizontal movement assembly both preferably include a lead screw and a rack and pinion.

[0035] It can be understood that when the gravity energy storage system provided by the present application includes two vertical transportation modules 01, the distance between the two vertical transportation modules 01 in the second direction (which can also be said to be the distance between the support units 12 of one vertical transportation module 01 and the support units 12 of the other vertical transportation module 01 in the second direction) is greater than the size of the upper transfer unit 02 in the second direction, and also greater than the size of the lower transfer unit 05 in the second direction. At the same time, it is smaller than the size of the heavy object block 03 in the second direction. Furthermore, when the upper transfer unit 02 is located between the two vertical transportation modules 01 and the lower transfer unit 05 is located between the two vertical transportation modules 01, it is not easy to interfere with the movement of the support unit 12, and both ends of the heavy object block 03 in the second direction can be smoothly supported by the support units 12 of the two vertical transportation modules 01 respectively; when the gravity energy storage system provided by the present application only uses one vertical transportation module 01, the support unit 12 can be an E-shaped structure, and both the first horizontal conveying assembly 09 and the second horizontal conveying assembly 13 are provided with E-shaped parts. The E-shaped structure of the support unit 12 and the E-shaped parts can intersect in the vertical direction to realize the transfer of the heavy object block 03.

[0036] Optionally, the heavy object transfer module includes a plurality of upper transfer units 02 and a plurality of lower transfer units 05 arranged vertically. Each of the upper transfer units 02 is located above each of the lower transfer units 05. The number of the upper transfer units 02 is the same as the number of the lower transfer units 05. The heavy object storage module includes a plurality of upper storage units 04 and a plurality of lower storage units 06 arranged vertically. Each of the upper storage units 04 is located above each of the lower storage units 06. Each of the upper transfer units 02 and each of the upper storage units 04 are used to transfer the heavy object blocks 03 in a first direction in one-to-one correspondence. Each of the lower transfer units 05 and each of the lower storage units 06 are used to transfer the heavy object blocks 03 in a first direction in one-to-one correspondence. The first direction is parallel to the direction in which the vertical transportation module 01, the heavy object transfer module, and the heavy object storage module are arranged in sequence. The first direction is parallel to the horizontal direction. In this way, when the vertical transportation module 01 in the embodiment of the present application includes a plurality of support units 12, between the vertical transportation module 01 and the heavy object transfer module, and between the heavy object transfer module and the heavy object storage module, multiple heavy object blocks 03 can be transferred at one time. Specifically, the number of support units 12 on the same flexible transmission member 07 is preferably not less than the number of upper transfer units 02, so that when each upper transfer unit 02 transfers each heavy object block 03 with the vertical transportation module 01, each upper transfer unit 02 has a corresponding support unit 12 to transfer the heavy object block 03 with this upper transfer unit 02; similarly, the number of support units 12 on the same flexible transmission member 07 is preferably not less than the number of lower transfer units 05, so that when each lower transfer unit 05 transfers each heavy object block 03 with the vertical transportation module 01, each lower transfer unit 05 has a corresponding support unit 12 to transfer the heavy object block 03 with this lower transfer unit 05.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than 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 described in the foregoing embodiments, or perform equivalent replacements on 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. Gravity energy storage system, characterized in that: A vertical transport module, a heavy object transfer module, a heavy object storage module and a heavy object block, wherein the heavy object storage module includes an upper storage unit and a lower storage unit. The vertical transport module comprises a conveying unit and a supporting unit, wherein the conveying unit is used to drive the supporting unit to move in a vertical direction so as to convey the heavy object block in the vertical direction. The heavy object transfer module is used to remove the heavy object blocks transported by the supporting unit and send them to the heavy object storage module. The heavy object transfer module is also used to send the heavy object blocks on the heavy object storage module to the supporting unit moving in the vertical direction, so as to realize the transportation of the heavy object blocks between the upper storage unit and the lower storage unit.

2. The gravity energy storage system according to claim 1, characterized in that: The conveying unit includes a first frame and a flexible transmission member installed on the first frame, the length direction of the flexible transmission member is parallel to the vertical direction, the flexible transmission member is used to circulate on the first frame, and the supporting unit is fixed to the flexible transmission member.

3. The gravity energy storage system according to claim 2, characterized in that: The conveying unit includes two flexible transmission members, and the vertical transport module includes multiple support units. At least one support unit is installed on each of the two flexible transmission members. The support unit on one flexible transmission member is used to cooperate with the support unit on the other flexible transmission member to support the heavy object.

4. The gravity energy storage system according to claim 3, characterized in that: The moving trajectory of the flexible transmission member on the first frame includes two straight line segments extending in the vertical direction, the two straight line segments of the moving trajectory of one flexible transmission member are respectively a first straight line segment and a second straight line segment, the two straight line segments of the moving trajectory of the other flexible transmission member are respectively a third straight line segment and a fourth straight line segment, the first straight line segment, the second straight line segment, the third straight line segment and the fourth straight line segment are arranged sequentially in the first direction, the circumferential direction of one flexible transmission member on the first frame is opposite to the circumferential direction of another flexible transmission member, so that the support unit on the second straight line segment and the support unit on the third straight line segment move synchronously and in the same direction, the first direction is parallel to the direction in which the vertical transport module, the heavy object transfer module and the heavy object storage module are arranged sequentially, and the first direction is parallel to the horizontal direction.

5. The gravity energy storage system according to claim 4, characterized in that: The portion of one of the flexible transmission members located on the second straight segment is in transmission cooperation with the portion of another of the flexible transmission members located on the third straight segment.

6. The gravity energy storage system according to claim 4, characterized in that: A guide groove is formed on the first frame, the flexible transmission member is located in the guide groove, and the flexible transmission member is rollingly matched with the inner wall of the guide groove.

7. The gravity energy storage system according to claim 4, characterized in that: It comprises two vertical transport modules, which are arranged in mirror symmetry in a second direction, each support unit is located between two transport units in the second direction, the second direction is perpendicular to the first direction, and the second direction is parallel to the horizontal direction.

8. The gravity energy storage system according to any one of claims 1 to 7, characterized in that: It also includes a second frame, and the heavy object transfer module and the heavy object storage module are both installed on the second frame. The heavy object transfer module includes an upper transfer unit, and the upper transfer unit includes a first horizontal moving component, a first horizontal guide rail, a vertical lifting component and a first horizontal conveying component installed on the vertical lifting component. The vertical lifting component is used to drive the first horizontal conveying component to move in the vertical direction. The first horizontal guide rail is installed on the second frame. The bottom end of the vertical lifting component rolls with the first horizontal guide rail in the first direction. The first horizontal moving component is used to drive the vertical lifting component and the first horizontal conveying component to move along the first horizontal guide rail in the first direction. The first direction is parallel to the direction in which the vertical transport module, the heavy object transfer module and the heavy object storage module are arranged in sequence, and the first direction is parallel to the horizontal direction.

9. The gravity energy storage system according to claim 8, characterized in that: The heavy object transfer module also includes a lower transfer unit, which includes a second horizontal moving component, a second horizontal guide rail and a second transverse conveying component. The second horizontal guide rail is installed on the second frame, and the bottom end of the second transverse conveying component rolls with the second horizontal guide rail in the first direction. The second horizontal moving component is used to drive the second transverse conveying component to move along the second horizontal guide rail in the first direction.

10. The gravity energy storage system according to claim 9, characterized in that: The heavy object transfer module includes a plurality of upper transfer units and a plurality of lower transfer units arranged in a vertical direction, each of the upper transfer units is located above each of the lower transfer units, and the number of the upper transfer units is the same as the number of the lower transfer units; the heavy object storage module includes a plurality of upper storage units and a plurality of lower storage units arranged in a vertical direction, each of the upper storage units is located above each of the lower storage units, each of the upper transfer units and each of the upper storage units are used to transfer the heavy object blocks in a first direction in a one-to-one manner, and each of the lower transfer units and each of the lower storage units are used to transfer the heavy object blocks in a first direction in a one-to-one manner, and the first direction is parallel to the direction in which the vertical transport module, the heavy object transfer module and the heavy object storage module are arranged in sequence, and the first direction is parallel to the horizontal direction.

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