Semicircular weight storage structure for gravity energy storage system
By adopting a semi-circular heavy object storage structure and automated transportation equipment in the gravity energy storage system, the problems of high energy consumption and difficulty in moving heavy objects have been solved, achieving efficient and stable transportation of heavy objects and improving system safety and response speed.
Patent Information
- Application Number
- CN202520277167.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-20
AI Technical Summary
In existing gravity energy storage systems, the storage of heavy blocks suffers from high energy consumption, difficulty in movement, and low efficiency, which affects the charging and discharging efficiency and stability of the system.
The system adopts a semi-circular heavy object storage structure, including a main roadway, sub-roadways, and transfer roadways. It is designed in a semi-circular layout and equipped with a roadway mother car, roadway daughter cars, and transfer mother car to realize automatic loading and unloading of heavy objects and continuous and stable operation, thereby reducing transportation routes and energy consumption.
It improves the charging and discharging efficiency of energy storage systems, reduces the risk of single-point failures, simplifies mechanical systems, reduces maintenance costs and energy consumption, and improves system safety and response speed.
Smart Images
Figure CN223689776U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of gravity energy storage, and particularly relates to a semicircular weight storage structure for a gravity energy storage system. BACKGROUND
[0002] In the existing gravity energy storage field, the storage form of the weight blocks usually has two structures of rectangular arrangement and radial arrangement, but both have shortcomings.
[0003] In the rectangular arrangement type, the weight blocks are arranged in a relatively regular rectangular or square mode. In this type, on the one hand, it may be difficult to maintain and access individual weight blocks because they are closely arranged together; on the other hand, more time and energy are needed to move and rearrange the weight blocks during the energy storage and release process.
[0004] In the radial arrangement type, the weight blocks are arranged around a center point or axis, similar to the spokes of a wheel. This type also has disadvantages, on the one hand, this layout may require more complex mechanical systems to manage and move the weight blocks, because they may need to be moved along non-linear paths, and are susceptible to site and mechanical system limitations; on the other hand, the center point may become a place of stress concentration, which may affect the stability of the structure over time; in addition, the radial arrangement may be more space-efficient, but it may be more difficult to move or replace the weight blocks in the central area if needed.
[0005] Therefore, in practical applications, the choice of arrangement structure depends on various factors, including available space, complexity of mechanical systems, ease of maintenance, and overall performance requirements of the energy storage system. Each arrangement structure needs to be carefully considered in design to ensure the efficiency, energy consumption and reliability of the system. As a commercialized, engineered power engineering, the key to the success of a gravity energy storage project lies in the efficiency of electrical energy conversion, and under the condition of a certain total system capacity, it depends on the energy consumption of each subsystem. Therefore, it is necessary to design a weight storage form that facilitates reducing energy consumption during transportation. UTILITY MODEL CONTENTS
[0006] The technical problem to be solved by the utility model lies in: providing a semicircular weight storage structure for a gravity energy storage system, solving the problems of high energy consumption in storage, difficulty in moving the weight, low efficiency and the like in the existing arrangement type, realizing reduction of the total path, total time and total energy consumption of weight block transportation, and thereby improving the charging and discharging efficiency of the entire energy storage system.
[0007] The utility model provides a semicircular heavy object storage structure for gravity energy storage system, and the gravity energy storage system has a vertical shaft, which is arranged on one side or both sides of the vertical shaft and comprises a main roadway, a sub roadway and a transfer roadway.
[0008] Further, the sub roadways are located in the semicircular structure formed between the transfer roadway and the main roadway, the length direction of each sub roadway is perpendicular to the length direction of the main roadway, the plurality of sub roadways are connected to the main roadway at different positions respectively, the plurality of sub roadways are connected to the transfer roadway at different positions respectively, and the length of the plurality of sub roadways and the length of the heavy object storage positions in the plurality of sub roadways are matched with the semicircular structure.
[0009] Further, the utility model also comprises a buffer conveying channel, and the main roadway and the vertical shaft are connected through the buffer conveying channel.
[0010] Further, the main roadway is in a straight line shape, the buffer conveying channel is located at the midpoint of the length direction of the main roadway, and the direction from the buffer conveying channel to the vertical shaft is perpendicular to the length direction of the main roadway.
[0011] Further, the buffer conveying channel is provided with a buffer conveyor for conveying and temporarily storing heavy objects.
[0012] Further, the main roadway is provided with a roadway mother vehicle capable of running along the length direction of the main roadway, each sub roadway is provided with a roadway child vehicle capable of running along the length direction of the sub roadway, and the transfer roadway is provided with a transfer mother vehicle capable of running along the length direction of the transfer roadway.
[0013] Further, the main roadway is provided with one or two roadway mother vehicles.
[0014] Further, the roadway mother vehicle, the roadway child vehicle and the transfer mother vehicle are all RGV trolleys, the main roadway is provided with a main roadway track for the roadway mother vehicle to run on, each sub roadway is provided with a sub roadway track for the roadway child vehicle to run on, and the transfer roadway is provided with a transfer roadway track for the transfer mother vehicle to run on; the roadway mother vehicle and the transfer mother vehicle are both provided with a child vehicle transfer track for the roadway child vehicle to run on.
[0015] Further, the semicircular heavy object storage structure for the gravity energy storage system is in two groups of structures, which are arranged on both sides of the vertical shaft and are symmetrical with respect to the structures on both sides of the vertical shaft.
[0016] Further, the semi-circular weight storage structure for the gravity energy storage system is arranged in the lower warehouse and / or the upper warehouse of the gravity energy storage system.
[0017] Compared with the prior art, the utility model has the beneficial technical effects as follows:
[0018] 1. The semi-circular weight storage structure for the gravity energy storage system reduces the total path, total time and total energy consumption of the weight block transportation compared with the conventional radial and rectangular warehouse storage forms from the perspective of gravity energy storage engineering application, and can be equipped with an automatic loading and unloading system to realize the continuous, stable and low-energy-consumption operation of the weight block in the upper / lower warehouse, thereby improving the charge and discharge efficiency of the entire energy storage system.
[0019] 2. The semi-circular weight storage structure for the gravity energy storage system can disperse the arrangement of the weight blocks due to the characteristics of the semi-circular layout structure, so that even if a problem occurs in a certain part, it will not affect the entire system, thereby reducing the risk of single-point failure leading to the failure of the entire system, and the non-linear path in the semi-circular layout is less, the mechanical form required is simpler, and the demand for a complex mechanical control system is reduced, which helps to reduce the complexity and potential failure rate of the system, thereby reducing the maintenance cost and energy consumption; in the semi-circular layout, the distribution of the weight blocks is more uniform, which helps to reduce the concentration of mechanical stress and make the center of gravity of the entire structure more balanced, thereby avoiding mechanical failure or structural damage caused by local overload, and improving the safety and stability of the system; the semi-circular layout provides better visibility and access paths, facilitating the monitoring and maintenance of the energy storage system. In this way, potential safety hazards can be discovered and handled in a timely manner to maintain the good operating state of the system.
[0020] 3. Compared with the rectangular storage type, the semi-circular layout of the energy storage system can better adapt to different environmental conditions and shorten the movement distance, thereby improving the energy conversion efficiency; the semi-circular layout can allow faster weight block start-stop and switching because they can more directly access and move the weight blocks, which helps to improve the response speed of the system to changes in grid demand and reduce energy consumption caused by response delay.
[0021] 4. In the semi-circular weight storage structure for the gravity energy storage system, the transfer tunnel and the transfer mother car can effectively reduce the number of transport cars, and a tunnel sub-car in each sub-tunnel does not need to be equipped, and after the weight blocks in a sub-tunnel are emptied, the tunnel sub-car in the sub-tunnel can be moved to other sub-tunnels for transportation through the transfer mother car, so that the equipment utilization rate is higher and more economical. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 is a top view schematic diagram of the heavy object storage structure provided by the utility model.
[0023] The reference signs in the drawings are explained as follows:
[0024] 1, shaft; 2, main roadway; 3, sub roadway; 4, transfer roadway; 5, buffer conveyor channel; 6, roadway mother car; 7, roadway sub car; 8, transfer mother car; 9, heavy object. DETAILED DESCRIPTION
[0025] The utility model provides a kind of semicircular heavy object storage structure for gravity energy storage system, specifically for the upper / lower warehouse arrangement form of relatively short path, relatively less energy consumption, solve the problem such as high energy consumption or heavy object movement difficulty, relatively low efficiency in existing arrangement type, realize the total path, total time and total energy consumption of reducing heavy object block transport, to improve the charge-discharge efficiency of entire energy storage system further.The heavy block storage structure designed by the utility model is generally semicircular, buffer conveyor, roadway mother car, roadway sub car, transfer mother car load and unload heavy block and store and run, in storage and extraction process, the automatic loading and unloading of heavy block can be realized, while the total transport path of heavy block in operation is smaller, the energy consumption in transport process is reduced to the maximum extent.
[0026] Please refer to Figure 1 The semicircular heavy object storage structure for gravity energy storage system of the utility model is for vertical shaft type gravity energy storage system, and the gravity energy storage system has shaft 1, and also has upper warehouse and lower warehouse, the shaft 1 has container or platform for conveying heavy object between upper warehouse and lower warehouse, etc., the basic structure of vertical shaft type gravity energy storage system is prior art, which is not described here, and the utility model mainly improves the structure of upper warehouse and / or lower warehouse.
[0027] The semicircular heavy object storage structure of the utility model is arranged at one side or both sides of shaft 1, specifically at the shaft opening (charging and discharging position) of upper / lower warehouse and shaft 1. Figure 1 In the shown embodiment, the semicircular heavy object storage structure for gravity energy storage system is two groups of structures, respectively arranged at both sides of shaft 1, and the structures at both sides of shaft 1 are symmetrical, that is, both upper and lower sides in the drawing are provided, and only one side of the semicircular structure is described in detail below, and the structure of the other side (if any) can be designed symmetrically. Figure 1 It is the top view schematic diagram of upper warehouse or lower warehouse, and semicircular structure (other structure except shaft 1) is basically located at the same height position, basically located at the same plane.
[0028] The semicircular heavy object storage structure comprises a main roadway 2, a sub roadway 3 and a transfer roadway 4. The main roadway 2 is directly or indirectly connected with the shaft 1. The sub roadway 3 is arranged in parallel with the main roadway 2 along the length direction of the main roadway 2. The sub roadway 3 is provided with heavy object storage positions for storing heavy objects 9. The end of the sub roadway 3 close to the shaft 1 is connected with the main roadway 2, and the end of the sub roadway 3 far from the shaft 1 is connected with the transfer roadway 4. The transfer roadway 4 is in an arc shape, and the transfer roadway 4 and the main roadway 2 form a semicircular structure.
[0029] More specifically, the sub roadway 3 is located in the semicircular structure formed between the transfer roadway 4 and the main roadway 2. The length direction of the sub roadway 3 is perpendicular to the length direction of the main roadway 2. The sub roadway 3 is connected with the main roadway 2 at different positions, and the sub roadway 3 is connected with the transfer roadway 4 at different positions. For the convenience of description, the connection between the two ends of the sub roadway 3 and the main roadway 2 and the transfer roadway 4 is called the roadway opening of the sub roadway. The length of the sub roadway 3 and the length of the heavy object storage position in the sub roadway 3 are matched with the semicircular structure, that is, the length of the sub roadway 3 in the middle is longer, and the length of the sub roadway 3 on the left and right sides is shorter.
[0030] Preferably, the semicircular heavy object storage structure further comprises a buffer conveying channel 5. The main roadway 2 and the shaft 1 are connected through the buffer conveying channel 5. Further, the main roadway 2 is in a straight line shape. The buffer conveying channel 5 is located at the midpoint of the length direction of the main roadway 2, and the direction from the buffer conveying channel 5 to the shaft 1 is perpendicular to the length direction of the main roadway 2. The buffer conveying channel 5 is provided with a buffer conveyor for conveying and temporarily storing (temporarily staying) heavy objects. The buffer conveyor is a machine capable of driving the heavy objects to move, for example, a roller conveying mechanism. The heavy objects only need to move in a straight line in the main roadway 2, and the buffer conveying channel 5 is responsible for conveying the heavy objects between the main roadway 2 and the shaft 1.
[0031] More specifically, the main roadway 2 is provided with a roadway mother vehicle 6 capable of moving along the length direction of the main roadway 2. The sub roadway 3 is provided with a roadway child vehicle 7 capable of moving along the length direction of the sub roadway 3. The transfer roadway 4 is provided with a transfer mother vehicle 8 capable of moving along the length direction of the transfer roadway 4. The number of the roadway child vehicles 7 is less than the number of the sub roadways 3. The transfer mother vehicle 8 can move to the roadway opening of any sub roadway 3, move the roadway child vehicle 7 in the sub roadway 3 to the transfer mother vehicle 8, and then transfer the roadway child vehicle 7 to other required sub roadway 3 through the transfer roadway 4. In this way, the total number of transport vehicles can be significantly reduced, and the construction cost can be reduced.
[0032] The roadway mother vehicle 6 can move to the roadway opening of any roadway sub-vehicle 3, move the roadway sub-vehicle 7 in it to the roadway mother vehicle 6, or only move the heavy object on the roadway sub-vehicle 7 to the roadway mother vehicle 6, and then transport the heavy object to the shaft opening or the buffer conveying passage 5 through the main roadway 2. The above process is the heavy object loading process, and the main roadway 2 and the roadway mother vehicle 6 can also perform the reverse heavy object transportation process and the storage process. The main roadway 2 has one or two roadway mother vehicles 6. Preferably, as shown in Figure 1 FIG. 1, the main roadway 2 has two roadway mother vehicles 6, which are particularly suitable for the structure in which the buffer conveying passage 5 is located in the middle of the main roadway 2. The two roadway mother vehicles 6 can be responsible for the sub-roads on the two sides and work at the same time, thereby improving the transportation efficiency. Of course, for the case of two roadway mother vehicles 6, the total number of roadway sub-vehicles 7 is not less than two.
[0033] The roadway mother vehicle 6, the roadway sub-vehicle 7, and the transfer mother vehicle 8 are, for example, RGV trolleys (rail-guided vehicles), and more specifically heavy-load RGV trolleys. The main roadway 2 has a main roadway track for the roadway mother vehicle 6 to travel on, each sub-roadway 3 has a sub-roadway track for the roadway sub-vehicle 7 to travel on, and the transfer roadway 4 has a transfer roadway track for the transfer mother vehicle 8 to travel on. The roadway mother vehicle 6 and the transfer mother vehicle 8 each have a sub-vehicle transfer track on which the roadway sub-vehicle 7 can travel.
[0034] The roadway sub-vehicle 7 can transport the heavy object 9 between the heavy object storage position and the main roadway 2. At least part of the area of the sub-roadway 3 is used as a heavy object storage position, which is, for example, a storage rack, as shown in Figure 1 FIG. 2. In each sub-roadway 3, three storage racks and two sub-roadway tracks are arranged at intervals, the sub-roadway track and the roadway sub-vehicle 7 are located between the two adjacent storage racks, the roadway sub-vehicle 7 has a lifting device for lifting and lowering the heavy object, and the heavy object 9 is located above the sub-roadway track and is placed on the storage rack; thus, the roadway sub-vehicle 7 can move to below the heavy object 9, lift the heavy object 9 off the storage rack, then move to transport the heavy object 9, and the roadway sub-vehicle 7 can also move to the required position of the storage rack while carrying the heavy object 9 and then lower the heavy object 9 onto the storage rack. The roadway sub-vehicle 7 can also optionally have a conveying mechanism above it, which can convey the heavy object 9 on it to the roadway mother vehicle 6 or the buffer conveyor. The structure of the heavy object transportation vehicle using gravity energy storage and the basic transportation method can adopt the existing technology or other feasible methods, which will not be described in detail here.
[0035] The working mode of a typical embodiment of the utility model is as follows. When the system stores energy, the loading and unloading conveyor of the lifting container in the gravity energy storage system transfers the heavy objects to the buffer conveyor, the buffer conveyor transfers the heavy objects to the roadway mother vehicle, the roadway mother vehicle moves along the length direction of the main roadway to reach the roadway entrance of any sub roadway and transfers the heavy objects to the roadway sub vehicle to realize the transfer of the heavy object blocks between the roadway mother vehicle and the roadway sub vehicle; the roadway sub vehicle moves along the length direction of the sub roadway to transfer the heavy object blocks to the designated position of the heavy object storage position for storage. When the system discharges, the roadway sub vehicle extracts the heavy objects in the sub roadway, then the roadway sub vehicle runs to the roadway mother vehicle of the main roadway, then the roadway mother vehicle carries the roadway sub vehicle to unload the heavy objects to the buffer conveyor, and the heavy objects are loaded into the lifting container through the buffer conveyor. The transfer mother vehicle in the transfer roadway can move along the length direction of the transfer roadway to reach the roadway entrance of any sub roadway, and then the roadway sub vehicle can be moved onto the transfer mother vehicle, and the transfer mother vehicle can transfer the roadway sub vehicle on it to other sub roadways.
[0036] The utility model discloses the device can adjust the ability of the operation parameter of each equipment according to the single weight, quantity and shape of the heavy object blocks according to the engineering needs, adjust the most suitable storage path to configure the storage scheme required by the engineering. It should be noted that the "roadway" described in this paper should be understood in a broad sense, for example, when the heavy object storage structure of the utility model is directly arranged on the ground of the upper warehouse above the ground, it refers to the passageway and does not need to adopt the chamber structure. In addition, the transport vehicle structure is not limited to specific embodiments, for example, in another optional embodiment, the transfer mother vehicle 8 is in the form of a hoist, which is moved by lifting the roadway sub vehicle 7 in the transfer roadway 4; and the transport vehicle can also be selected as other vehicles such as trackless vehicles, so as to realize, for example, the roadway sub vehicle 7 directly moves to other sub roadways without the transfer mother vehicle 8, or the buffer conveyor and the roadway mother vehicle 6 directly move to the shaft entrance without the buffer conveyor and the roadway mother vehicle 6; etc.
[0037] In summary, the half-round heavy object storage structure for the gravity energy storage system reduces the total path, total time and total energy consumption of heavy object block transportation compared with the conventional radial and rectangular storage forms, and can be equipped with an automatic loading and unloading system to realize continuous, stable and low-energy-consumption operation of the heavy object blocks in the upper and lower storages, thereby improving the charge and discharge efficiency of the entire energy storage system. Compared with the radial storage form, the half-round heavy object storage structure for the gravity energy storage system can disperse the arrangement of heavy object blocks due to the characteristics of the half-round layout structure, so that even if a problem occurs in a certain part, it will not affect the entire system, thereby reducing the risk of single-point failure leading to the failure of the entire system. Moreover, the half-round layout has fewer non-linear paths and requires simpler mechanical forms, reducing the need for complex mechanical control systems, which helps to reduce the complexity and potential failure rate of the system, thereby reducing maintenance costs and energy consumption. In the half-round layout, the distribution of heavy object blocks is more uniform, which helps to reduce the concentration of mechanical stress and make the center of gravity of the entire structure more balanced, thereby avoiding mechanical failure or structural damage caused by local overload and improving the safety and stability of the system. The half-round layout provides better visibility and access paths, facilitating monitoring and maintenance of the energy storage system. This can timely discover and handle potential safety hazards and maintain the good operating state of the system. Compared with the rectangular storage form, the half-round layout of the energy storage system can better adapt to different environmental conditions and shorten the movement distance, thereby improving energy conversion efficiency. The half-round layout may allow faster heavy object block start-stop and switching because they can more directly access and move heavy object blocks, which helps to improve the response speed of the system to changes in grid demand and reduce energy consumption caused by response delays. In the half-round heavy object storage structure for the gravity energy storage system, the transfer tunnel and transfer mother car can effectively reduce the number of transport cars, and there is no need to equip each sub-tunnel with a tunnel sub-car. After the heavy object blocks in a sub-tunnel are emptied, for example, the tunnel sub-car in the sub-tunnel can be moved to other sub-tunnels for transportation through the transfer mother car, thereby improving the utilization rate of the equipment and being more economical.
Claims
1. A semi-circular weight storage structure for a gravitational energy storage system having a shaft (1), characterized in that, It is arranged on one side or both sides of the shaft (1), and comprises a main roadway (2), a sub-roadway (3) and a transfer roadway (4); the main roadway (2) is communicated with the shaft (1), the sub-roadway (3) is arranged in parallel along the length direction of the main roadway (2), the sub-roadway (3) has a heavy object storage position, one end of the sub-roadway (3) close to the shaft (1) is communicated with the main roadway (2), and one end of the sub-roadway (3) away from the shaft (1) is communicated with the transfer roadway (4); the transfer roadway (4) is in an arc shape, and a semicircular structure is formed between the transfer roadway (4) and the main roadway (2).
2. The semi-circular weight storage structure for a gravitational energy storage system of claim 1, wherein, The sub-roadway (3) is located in the semicircular structure formed between the transfer roadway (4) and the main roadway (2), the length direction of the sub-roadway (3) is perpendicular to the length direction of the main roadway (2), the plurality of sub-roadways (3) are connected with the main roadway (2) at different positions respectively, the plurality of sub-roadways (3) are connected with the transfer roadway (4) at different positions respectively, and the length of the plurality of sub-roadways (3) and the length of the heavy object storage position are matched with the semicircular structure.
3. The semi-circular weight storage structure for a gravitational energy storage system of claim 1, wherein, The main roadway (2) is connected with the shaft (1) through the buffer conveying channel (5).
4. The semi-circular weight storage structure for a gravitational energy storage system of claim 3, wherein, The main roadway (2) is in a straight line shape, the buffer conveying channel (5) is located at the midpoint of the length direction of the main roadway (2), and the direction from the buffer conveying channel (5) to the shaft (1) is perpendicular to the length direction of the main roadway (2).
5. The semi-circular weight storage structure for a gravitational energy storage system of claim 4, wherein, The buffer conveying channel (5) is provided with a buffer conveyor for conveying and temporarily storing heavy objects.
6. The semi-circular weight storage structure for a gravitational energy storage system according to any one of claims 1-5, wherein, The main roadway (2) has a roadway mother vehicle (6) capable of running along the length direction thereof; the sub-roadway (3) has a roadway sub-vehicle (7) capable of running along the length direction thereof; the transfer roadway (4) has a transfer mother vehicle (8) capable of running along the length direction thereof; and the number of the roadway sub-vehicles (7) is less than the number of the sub-roadways (3).
7. The semi-circular weight storage structure for a gravitational energy storage system of claim 6, wherein, The main roadway (2) has one or two roadway mother vehicles (6).
8. The semi-circular weight storage structure for a gravitational energy storage system of claim 6, wherein, The roadway mother vehicle (6), the roadway sub-vehicle (7) and the transfer mother vehicle (8) are RGV trolleys; the main roadway (2) has a main roadway track for the roadway mother vehicle (6) to run on, each sub-roadway (3) has a sub-roadway track for the roadway sub-vehicle (7) to run on, and the transfer roadway (4) has a transfer roadway track for the transfer mother vehicle (8) to run on; the roadway mother vehicle (6) and the transfer mother vehicle (8) are each provided with a sub-vehicle transfer track for the roadway sub-vehicle (7) to run on.
9. The semi-circular weight storage structure for a gravitational energy storage system according to any one of claims 1-5, wherein, The semicircular heavy object storage structure for the gravity energy storage system is two groups of structures, which are arranged on both sides of the shaft (1) and are symmetrical to each other.
10. The semi-circular weight storage structure for a gravitational energy storage system according to any one of claims 1-5, wherein, The semicircular heavy object storage structure for the gravity energy storage system is arranged in the lower bin and / or the upper bin of the gravity energy storage system.