Slideway type gravity energy storage system

Abstract

The utility model provides a slideway type gravity energy storage system, which relates to the technical field of energy storage, and comprises a deep groove, heavy objects and a lifting mechanism capable of driving the heavy objects to move, the deep groove extends along the horizontal direction under the ground, and a plurality of heavy objects are arranged in the deep groove along the extending direction of the deep groove; the lifting mechanism comprises two sliding rail beams which are arranged in parallel and located above the ground and a transverse beam which can slide relative to the sliding rail beams, a power generation driving all-in-one machine is installed on the transverse beam in a sliding mode, and a grabbing mechanism is hung on the power generation driving all-in-one machine through a rope. The gravity energy storage system solves the technical problem that in the prior art, the construction cost of a gravity energy storage system is too high, the construction and operation cost of the gravity energy storage system is reduced, and application and popularization are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to a sliding gravity energy storage system. Background Technology

[0002] Gravity energy storage is a technology that uses the gravitational potential energy generated during the lifting or falling of an object to store and release energy.

[0003] To achieve the conversion between gravitational potential energy and electrical energy, gravity energy storage systems typically require a complex structure. This system mainly includes an energy storage medium (a weight), a lifting mechanism for raising or lowering the energy storage medium, and an energy conversion mechanism for converting gravitational potential energy into electrical energy. During operation, when energy storage is needed, the lifting mechanism activates, raising the energy storage medium to a certain height via the rotation of a drum. At this point, electrical energy is converted into gravitational potential energy and stored. When energy needs to be released, the energy storage medium is released and falls. The gravitational potential energy released during its descent is captured by the energy conversion mechanism and converted into electrical energy for output. To ensure sufficient energy storage, current technologies typically involve digging a deep pit into the ground to provide ample space for the energy storage medium to travel.

[0004] However, during implementation, the inventors discovered that the aforementioned prior art has at least the following drawbacks: the excessive depth of the pit significantly increases the project cost. This not only raises the construction and operation costs of gravity energy storage systems but also limits their application and promotion in a wider range of fields. Utility Model Content

[0005] This application provides a sliding gravity energy storage system, which solves the technical problem of excessively high engineering costs in existing gravity energy storage systems, reduces the construction and operation costs of gravity energy storage systems, and is conducive to application and promotion.

[0006] To solve the aforementioned technical problems, this utility model adopts the following technical solution: a sliding gravity energy storage system, comprising a deep trough, heavy objects, and a lifting mechanism capable of moving the heavy objects. The deep trough extends horizontally below ground level, and multiple heavy objects are arranged within the deep trough along its extension direction. The lifting mechanism includes two parallel sliding rail beams located above ground level and a transverse beam capable of sliding relative to the sliding rail beams. A generator-drive integrated unit is slidably mounted on the transverse beam, and the generator-drive integrated unit is suspended by a gripping mechanism via ropes. Because the deep trough extends horizontally below ground level, and the heavy objects are arranged within it, sufficient energy storage can be guaranteed by arranging a sufficient number of heavy objects within the deep trough. Therefore, it is not necessary to extend the deep trough vertically downwards, reducing the construction and operation costs of the system and facilitating its application and promotion.

[0007] As a further improvement to the above scheme, two slide rail beams are located on both sides of the deep groove, and both ends of each slide rail beam are supported on the ground by columns.

[0008] As a further improvement to the above scheme, a connecting beam is fixedly connected between the two columns; this forms a stable support structure, effectively preventing the deformation and instability of the slide rail beam under heavy load, thereby ensuring the stability and safety of the entire lifting mechanism.

[0009] As a further improvement to the above solution, a moving mechanism is fixed above each of the transverse beams near both ends. The two moving mechanisms are slidably installed on the bottom of the two track beams, and the length of the transverse beam is greater than the distance between the two track beams. This provides sufficient working space for the generator-driven integrated machine and the gripping mechanism to stack heavy objects on the ground on both sides of the deep trench.

[0010] As a further improvement to the above solution, the gripping mechanism is a gripper, and the weight is a prefabricated cube or cuboid module of the same specifications.

[0011] As a further improvement to the above solution, the gripping mechanism is a hook, and correspondingly, the top of the heavy object is equipped with a lifting ring.

[0012] As can be seen from the above technical solutions, this utility model has at least the following technical effects or advantages:

[0013] This invention utilizes a deep trench that extends horizontally below ground level. By placing sufficient weights within the trench, the system's energy storage is guaranteed, eliminating the need for a vertically downward extension. This reduces construction and operating costs, facilitating application and widespread adoption. Furthermore, the individual arrangement of the weights within the trench enables discrete power generation. In practical applications, this discrete power generation not only improves the flexibility and response speed of gravity energy storage systems but also contributes to intelligent grid dispatching and stable operation. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Fig. 1 This is a three-dimensional structural diagram of the present invention;

[0016] Fig. 2 This is the front view of the present invention;

[0017] Fig. 3 This is a side view of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Slide rail beam, 2. Transverse beam, 3. Integrated generator and drive unit, 4. Rope, 5. Grabbing mechanism, 6. Weight, 7. Column, 8. Connecting beam, 9. Moving mechanism. Detailed Implementation

[0019] In order to better understand the improvements made by this utility model compared with the prior art, the prior art mentioned in the background section will be explained before the specific embodiments of this utility model are described in detail.

[0020] Gravity energy storage is a purely mechanical energy storage method. To achieve the conversion between gravitational potential energy and electrical energy, the energy storage medium generally needs to be raised to a certain height. When the energy storage medium is raised to a higher position, energy can be stored; when the energy storage medium is released, the conversion between gravitational potential energy and electrical energy can be achieved. Ideally, each ton of energy storage medium stored during a 100-meter elevation change stores 0.27 kilowatt-hours of electrical energy. Therefore, to ensure sufficient energy storage, current technologies typically involve digging a deep pit from the ground to provide ample space for the energy storage medium to travel. However, excessive pit depth significantly increases the project cost.

[0021] The present invention addresses the issue of excessively high engineering costs in existing gravity energy storage systems. The specific implementation of the present invention is described in detail below.

[0022] Example 1

[0023] like Figs. 1 to 3 As shown, a sliding gravity energy storage system includes a deep trench, a weight 6, and a lifting mechanism capable of moving the weight 6. The deep trench extends horizontally below the ground, a design that avoids the high engineering costs associated with digging deep pits in traditional gravity energy storage systems. Multiple weights 6 are arranged within the deep trench along its extension direction to facilitate continuous energy storage and release.

[0024] The lifting mechanism includes two parallel sliding rail beams 1 positioned above the ground, and a transverse beam 2 capable of sliding relative to the sliding rail beams 1. The two sliding rail beams 1 are located on opposite sides of the deep groove, and both ends of each sliding rail beam 1 are supported on the ground by columns 7 to ensure the stability and load-bearing capacity of the sliding rail beam 1. Furthermore, a connecting beam 8 is fixedly connected between the two columns 7, enhancing the stability of the entire structure.

[0025] A generator-drive integrated unit 3 is slidably mounted on the transverse beam 2. This unit integrates drive and power generation functions, enabling the conversion between gravitational potential energy and electrical energy while simultaneously lifting or lowering the load 6. A gripping mechanism 5 is suspended from the generator-drive integrated unit 3 via ropes 4. This gripping mechanism 5 is used to grip or release the load 6. In this embodiment, the gripping mechanism 5 is a clamp that firmly holds the load 6, preventing it from falling off during lifting. The load 6 is a prefabricated cube or cuboid module of uniform size for easy stacking and gripping.

[0026] Specifically, in this embodiment, a moving mechanism 9 is fixed above each end of the transverse beam 2, and the two moving mechanisms 9 are slidably installed at the bottom of the two slide rail beams 1. The length of the transverse beam 2 is greater than the distance between the two slide rail beams 1, so that the transverse beam 2 can slide stably between the two slide rail beams 1, while ensuring that the generator-driven integrated machine 3 and the gripping mechanism 5 have enough working space to stack the heavy objects 6 on the ground on both sides of the deep trench.

[0027] During operation, when energy storage is required, the moving mechanism 9 drives the transverse beam 2 to slide along the slide rail beam 1 to the corresponding position above the deep trench. The generator-driven integrated machine 3 is activated, and the weight 6 is lifted from the deep trench via the rope 4 and the gripping mechanism 5. Subsequently, the generator-driven integrated machine moves the weight 6 along the transverse beam 2 to the ground accumulation area on both sides of the deep trench, where the weight 6 is stacked. At this time, electrical energy is converted into gravitational potential energy for storage, and the higher the weight 6 is stacked, the greater the stored gravitational potential energy. When energy needs to be released, the process is reversed: the generator-driven integrated machine 3 rotates in the opposite direction, placing the weight from the ground accumulation area on both sides of the deep trench into the deep trench. The gravitational potential energy released during its descent is captured by the generator-driven integrated machine 3 and converted into electrical energy for output.

[0028] Example 2

[0029] This embodiment is largely the same as Embodiment 1, except for the design of the gripping mechanism 5 and the weight 6. In this embodiment, the gripping mechanism 5 is a hook, and correspondingly, the top of the weight 6 is equipped with a lifting ring. Through the cooperation of the hook and the lifting ring, the weight 6 can be easily gripped and released. In addition, the shape and size of the weight 6 can also be customized according to actual needs, and are not limited to cube or cuboid modules.

[0030] This invention utilizes a deep trench that extends horizontally below ground level, with the weights 6 arranged within it. By placing a sufficient number of weights within the trench, the system's energy storage capacity is guaranteed, eliminating the need for a vertically downward extension of the trench. This reduces construction and operating costs, facilitating application and widespread adoption. Furthermore, since the weights 6 are arranged individually within the trench, discrete power generation is possible. Therefore, in practical applications, discrete power generation not only improves the flexibility and response speed of the gravity energy storage system but also contributes to intelligent grid dispatching and stable operation.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in its embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A sliding gravity energy storage system, comprising a deep trough, a weight (6), and a lifting mechanism capable of moving the weight (6), characterized in that, The deep trench extends horizontally below the ground, and multiple heavy objects (6) are arranged in the deep trench along the direction of the deep trench extension; the lifting mechanism includes two parallel sliding beams (1) located above the ground and a transverse beam (2) that can slide relative to the sliding beams (1). A generator-driven integrated machine (3) is slidably installed on the transverse beam (2), and a gripping mechanism (5) is suspended from the generator-driven integrated machine (3) by a rope (4).

2. The sliding gravity energy storage system according to claim 1, characterized in that, Two slide rail beams (1) are located on both sides of the deep groove, and both ends of each slide rail beam (1) are supported on the ground by columns (7).

3. The sliding gravity energy storage system according to claim 2, characterized in that, A connecting beam (8) is fixedly connected between the two columns (7).

4. The sliding gravity energy storage system according to claim 3, characterized in that, The transverse beam (2) is fixed with a moving mechanism (9) above both ends. The two moving mechanisms (9) are slidably installed at the bottom of the two track beams respectively. The length of the transverse beam (2) is greater than the distance between the two track beams.

5. A sliding gravity energy storage system according to any one of claims 1 to 4, characterized in that, The gripping mechanism (5) is a gripper, and the weight (6) is a prefabricated cube or cuboid module of the same specifications.

6. A sliding gravity energy storage system according to any one of claims 1 to 4, characterized in that, The gripping mechanism (5) is a hook, and correspondingly, the top of the heavy object (6) is equipped with a lifting ring.

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