Single-area slope type gravity energy storage system

Abstract

The utility model relates to a single-area slope type gravity energy storage system which is characterized in that a transportation rail is laid on a mountain body, the transportation rail is a mountain top storage yard rail located at the top of the mountain body, the transportation rail is a mountain bottom storage yard rail located at the bottom of the mountain body, and a transportation trolley is arranged on the transportation rail and slides along the track of the transportation rail; the transport trolley is provided with a bearing platform used for bearing goods, the gravitational potential energy generator can generate electricity under the gravitational potential energy effect of the transport trolley, and the transformer substation is arranged at the bottom of the mountain and connected with the gravitational potential energy generator and the power grid and used for transmitting electricity generated by the gravitational potential energy generator to the power grid.

Description

Technical Field

[0001] This application relates to the technical field of energy storage, and in particular to a single-region ramp-type gravity energy storage system. Background Art

[0002] When the power generation of power generation equipment is greater than the power consumption, it is necessary to store the generated electric energy so that it can be effectively released during the period of large power consumption, and the stored electric energy can be used for power supply, so as to effectively utilize the electric energy of the power generation equipment. The generated electric energy can be converted into other types of energy for storage by means of energy conversion. However, there is currently no effective energy storage device and energy storage station that can well perform this energy conversion to make full use of the electric energy generated by the power generation equipment. Utility Model Content

[0003] In view of this, this application proposes a single-region ramp-type gravity energy storage system, which saves electricity.

[0004] According to one aspect of this application, there is provided a single-region ramp-type gravity energy storage system, including: a transportation track, the transportation track is laid on the mountain, and the transportation track at the top of the mountain is the mountaintop yard track, and the transportation track at the bottom of the mountain is the bottom yard track;

[0005] A transportation trolley, the transportation trolley is arranged on the transportation track and slides along the track of the transportation track, and the transportation trolley is provided with a carrying platform, which is suitable for carrying goods;

[0006] A gravitational potential energy generator, which can generate electricity under the action of the gravitational potential energy of the transportation trolley;

[0007] A substation, the substation is arranged at the bottom of the mountain, and is suitable for being connected to the gravitational potential energy generator and the power grid respectively, and is suitable for transmitting the electricity generated by the gravitational potential energy generator to the power grid.

[0008] In a possible implementation manner, the gravitational potential energy generator can generate electricity under the action of the gravitational potential energy of the transportation trolley.

[0009] In a possible implementation manner, there are two or more gravitational potential energy generators, which are arranged at intervals along the mountaintop yard track to the bottom yard track on the transportation track.

[0010] In a possible implementation manner, the transportation track is a circular closed-loop line.

[0011] In a possible implementation manner, the carrying platform is a plate-like structure and is symmetrically arranged with respect to the track center of the transportation track.

[0012] In a possible implementation manner, the track of the mountaintop storage yard track is in a "U" shape, and the entrance end and the exit end of the mountaintop storage yard track are close to each other;

[0013] The track of the bottom-of-the-mountain storage yard track is in a "U" shape, and the entrance end and the exit end of the bottom-of-the-mountain storage yard track are close to each other.

[0014] In a possible implementation manner, the track between the mountaintop storage yard track and the bottom-of-the-mountain storage yard track is a power generation and transportation track, and the power generation and transportation track is a straight track; the power generation and transportation track includes an uphill track and a downhill track. The two ends of the uphill track are respectively connected to the entrance end of the mountaintop storage yard track and the exit of the bottom-of-the-mountain storage yard track, and the two ends of the downhill track are respectively connected to the exit end of the mountaintop storage yard track and the entrance of the bottom-of-the-mountain storage yard track; the uphill track and the downhill track are arranged in parallel.

[0015] In a possible implementation manner, the length ratio of the mountaintop storage yard track to the power generation and transportation track is in the range of 1:4 - 1:6.

[0016] In a possible implementation manner, the length of the mountaintop storage yard track is equal to the length of the bottom-of-the-mountain storage yard track;

[0017] The width of the mountaintop storage yard track is smaller than the width of the bottom-of-the-mountain storage yard track; and

[0018] The bottom-of-the-mountain storage yard track is provided with a car unloading area for unloading the transport trolley.

[0019] The beneficial effects of the single-region ramp-type gravity energy storage system according to the embodiments of the present application: It is used to transport goods between the mountaintop and the bottom of the mountain, and there is a height difference between the mountaintop and the bottom of the mountain. When using a transport trolley to transport heavy objects on the transport track, a potential energy difference will be generated when transporting from the mountaintop to the bottom of the mountain. Therefore, the potential energy generated when the transport trolley carrying heavy objects slides from the mountaintop to the bottom of the mountain can be collected and converted into electrical energy for use to provide power for the operation of the transport track. Specifically, the transport track includes three sections of tracks: the mountaintop storage yard track, the power generation and transportation track, and the bottom-of-the-mountain transport track. The mountaintop storage yard track is located at the top of the mountain, the bottom-of-the-mountain storage yard track is located at the bottom of the mountain, and the power generation and transportation track is connected between the mountaintop storage yard track and the bottom-of-the-mountain storage yard track. By setting a gravitational potential energy generator on the power generation and transportation track, the gravitational potential energy generated by the transport trolley relative to the transport track is converted into electrical energy, and is collected through a substation, and the collected electrical energy is transmitted to the power grid for other devices to use.

[0020] According to the following detailed description of the exemplary embodiments with reference to the accompanying drawings, other features and aspects of the present application will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings included in and forming a part of the specification illustrate exemplary embodiments, features, and aspects of the present application together with the specification, and are used to explain the principles of the present application.

[0022] Figure 1 Schematic diagram of a single-region ramp-type gravity energy storage system showing an embodiment of the present application. Detailed Description of the Invention

[0023] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0024] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention or 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 should not be construed as a limitation of the present invention.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0026] The term "exemplary" used herein means "serving as an example, embodiment, or illustration". Any embodiment described herein as "exemplary" should not be construed as being superior to or better than other embodiments.

[0027] In addition, for a better description of the present application, numerous specific details are given in the following detailed description. Those skilled in the art should understand that the present application can also be implemented without some specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0028] Refer to Figure 1, the single - area ramp - type gravity energy storage system of the embodiment of the present application includes: a transportation track, a transportation trolley 200, a gravitational potential energy power station 300, and a substation 400. The transportation track is laid on the mountain body. The track at the top of the mountain body is the mountaintop storage yard track 110, and the track at the bottom of the mountain body is the bottom - of - the - mountain storage yard track 120. The transportation trolley 200 is arranged on the transportation track and slides along the track of the transportation track. The transportation trolley 200 is provided with a carrying platform suitable for carrying goods. The gravitational potential energy generator 300 can generate electricity under the action of the gravitational potential energy of the transportation trolley 200. The substation 400 is arranged at the bottom of the mountain body and is suitable for being connected to the gravitational potential energy generator 300 and the power grid respectively, and is suitable for transmitting the electricity generated by the gravitational potential energy generator 300 to the power grid.

[0029] Among them, the driving device of the gravitational potential energy generator 300 is a drum. The drum is connected to the cable corresponding to the transportation track. The cable drives the drum to rotate, and the rotating drum can convert kinetic energy into electrical energy through the gravitational potential energy generator 300.

[0030] In this embodiment, the transportation track is laid on a mountain body with a height difference for transporting goods between the mountaintop and the bottom of the mountain. There is a height difference between the mountaintop and the bottom of the mountain. When using the transportation trolley 200 to transport heavy objects on the transportation track and transporting from the mountaintop to the bottom of the mountain, a potential energy difference will be generated. Therefore, the potential energy generated when the transportation trolley 200 carrying heavy objects slides from the mountaintop to the bottom of the mountain can be collected and converted into electrical energy for use to provide power for the operation of the transportation track. Specifically, the transportation track includes three sections of tracks: the mountaintop storage yard track 110, the power - generating transportation track 120, and the bottom - of - the - mountain transportation track. The mountaintop storage yard track 110 is located at the top of the mountain body, the bottom - of - the - mountain storage yard track 130 is located at the bottom of the mountain body, and the power - generating transportation track 120 is connected between the mountaintop storage yard track 110 and the bottom - of - the - mountain storage yard track 130. By setting the gravitational potential energy generator 300 on the power - generating transportation track 120, the gravitational potential energy generated by the transportation trolley 200 relative to the transportation track is converted into electrical energy, and is collected through the substation 400. The collected electrical energy is connected to the power grid through the substation 400 for other equipment to use. Moreover, in the low - electricity - consumption peak period of this application, the transportation trolley 200 carrying heavy blocks is transported from the bottom of the mountain to the mountaintop by the generator, and in the high - electricity - consumption peak period, the transportation trolley loaded with heavy blocks is transported to the bottom of the mountain using the height difference of the mountain body. The cable moving together with the transportation trolley 200 will drive the drum of the gravitational potential energy generator 300 to rotate, thereby converting kinetic energy into electrical energy again.

[0031] In a specific embodiment, the substation 400 is electrically connected to the transmission line of the power system. When the gravitational potential energy generator 300 transmits the generated electrical energy to the substation 400, the alternating current can be converted into direct current through the side - motor unit, and then the direct current is redistributed to the transportation track or the power system for collection.

[0032] In a specific embodiment, there are two or more gravitational potential energy generators 300, which are arranged at intervals along the mountain top storage yard track 110 to the mountain bottom storage yard track 130 on the transportation track, and multiple gravitational potential energy generators 300 are arranged at equal intervals on the power generation transportation track 120, so as to avoid excessive potential energy generated when the transportation trolley 200 slides, exceeding the single gravitational potential energy, resulting in part of the potential energy not being collected and wasted.

[0033] In a specific embodiment, the transportation track is a circular closed-loop line, and the transportation trolley 200 can reciprocally slide between the mountain top and the mountain bottom along a circular transportation route.

[0034] In a specific embodiment, the bearing platform is of a plate-like structure and is symmetrically arranged with respect to the track center of the transportation track, so that the bearing platform carrying heavy objects can smoothly send the heavy objects to the mountain top or the mountain bottom during transportation.

[0035] In a specific embodiment, the track of the mountain top storage yard track 110 is in a "U" shape, the inlet end and the outlet end of the mountain top storage yard track 110 are attached to each other, and the track of the mountain bottom storage yard track 130 is in a "U" shape, and the inlet end and the outlet end of the mountain bottom storage yard track 130 are close to each other, so that the uphill track 1 and the downhill track of the power generation transportation track are close to each other, which is convenient for the installation, inspection and maintenance of the track, and the adjacent uphill track and downhill track can reduce the floor area.

[0036] Among them, the uphill track and the downhill track are arranged in parallel and are both straight structures, extending from the mountain top position to the mountain bottom position.

[0037] In a specific embodiment, the power generation transportation track 120 is a straight track, which is convenient for the transportation trolley 200 to move on the power generation transportation track 120. Among them, the two ends of the uphill track 120 are respectively connected to the inlet end of the mountain top storage yard track 110 and the outlet of the mountain bottom storage yard track 130, and the two ends of the downhill track 120 are respectively connected to the outlet end of the mountain top storage yard track 110 and the inlet of the mountain bottom storage yard track 130, so as to form a closed-loop circular track. In addition, the adjacent uphill track 120 and downhill track 120 are convenient for a gravitational potential energy generator 300 to be installed on the uphill track 120 and the downhill track 120 at the same time.

[0038] In a specific embodiment, the length ratio of the mountain top storage yard track 110 to the power generation transportation track 120 is in the range of 1:4 - 1:6, and the length of the mountain top storage yard track 110 is equal to the length of the mountain bottom storage yard track 130. The width of the mountain top storage yard track 110 is smaller than the width of the mountain bottom storage yard track 130 because a car unloading area 500 needs to be provided on the mountain bottom storage yard track 130 for unloading the transportation trolley 200.

[0039] Among them, the number of the transport carts 200 on a single system is in the range of 100 - 400.

[0040] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A single-area slope gravity energy storage system, suitable for being installed on a mountain with a height difference, characterized in that: include: Transport tracks, the transport tracks are laid on the mountain, and the transport tracks located at the top of the mountain are mountain top yard tracks, and the transport tracks located at the bottom of the mountain are mountain bottom yard tracks; A transport trolley, which is arranged on the transport track and slides along the track of the transport track, and the transport trolley is provided with a load-bearing platform suitable for carrying goods; A gravitational potential energy generator, which is capable of generating electricity under the action of the gravitational potential energy of the transport trolley; A substation is arranged at the bottom of the mountain, and is suitable for being connected to the gravity potential energy generator and the power grid respectively, and is suitable for transmitting the electricity generated by the gravity potential energy generator to the power grid.

2. The single-area slope gravity energy storage system according to claim 1, characterized in that: The transport track includes a power supply device; The substation is electrically connected to a power supply device of the transport track, and can supply power to the transport track through the power supply device to drive the transport trolley.

3. The single-area slope gravity energy storage system according to claim 1, characterized in that: There are more than two gravity potential energy generators, which are arranged at intervals on the transportation track along the mountain top yard track to the mountain bottom yard track.

4. The single-area slope gravity energy storage system according to any one of claims 1 to 3, characterized in that: The transport track is a circular closed loop line.

5. The single-area slope gravity energy storage system according to any one of claims 1 to 3, characterized in that: The bearing platform is a plate-shaped structure and is symmetrically arranged around the track center of the transport track.

6. The single-area slope gravity energy storage system according to claim 1, characterized in that: The track of the mountaintop yard track is "U" shaped, and the entrance end and the exit end of the mountaintop yard track are close to each other; The track of the mountain bottom yard track is "U"-shaped, and the entrance end and the exit end of the mountain bottom yard track are close to each other.

7. The single-area slope gravity energy storage system according to claim 6, characterized in that: The track between the mountain top yard track and the mountain bottom yard track is a power generation and transportation track, and the power generation and transportation track is a linear track; the power generation and transportation track includes an uphill track and a downhill track, the two ends of the uphill track are respectively connected to the entrance end of the mountain top yard track and the exit of the mountain bottom yard track, and the two ends of the downhill track are respectively connected to the exit end of the mountain top yard track and the entrance of the mountain bottom yard track; The uphill track and the downhill track are arranged parallel to each other.

8. The single-area slope gravity energy storage system according to claim 1, characterized in that: The length of the mountain top yard track is equal to the length of the mountain bottom yard track; The width of the mountain top yard track is smaller than the width of the mountain bottom yard track; and The mountain bottom yard track is provided with an unloading area for unloading the transport trolley.

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