A series energy storage system, energy storage device and power generation method

Abstract

The application belongs to the technical field of air energy storage, and particularly relates to a series energy storage system, an energy storage device and a power generation method, which comprise an air energy storage module, an air compression module, an air release module, a heat management module, a power generation module and a control module, the air energy storage module is used for storing compressed air, the air compression module is used for compressing external air and storing the compressed air in the air energy storage module, the air release module is used for releasing the compressed air in the air energy storage module, the heat management module is used for controlling and processing heat changes generated during air compression and release, and the power generation module is used for driving a power generation device to generate electric energy by using the released compressed air; the energy storage system can effectively store energy by compressing air through the air compression module and storing the compressed air in the air energy storage module, when the energy is released, the energy of the compressed air can be converted into electric energy, the power generation device is driven by the power generation module to generate electric energy, and efficient energy utilization is achieved.

Description

Technical Field

[0001] This invention belongs to the field of air energy storage technology, specifically a series energy storage system, energy storage device and power generation method. Background Technology

[0002] With the continuous increase in global energy demand, especially the widespread adoption of renewable energy sources such as wind and solar power, energy storage and dispatch have become one of the key challenges of modern energy systems. Compressed air energy storage technology, as an energy storage solution with great potential, has gradually gained widespread attention. Compared with other energy storage methods, compressed air energy storage has a longer lifespan, lower initial investment costs, and higher energy conversion efficiency.

[0003] Compressed air storage relies on large storage tanks or underground storage caverns, and drilling technology provides a solution for creating underground storage spaces. Drilling equipment accesses underground rock formations to create suitable cavern or pipeline structures for compressed air storage. This underground storage method offers higher energy density and storage capacity, making it an indispensable part of large-scale compressed air energy storage systems. Drilling technology is used to extract underground storage space and optimize the structure of the storage caverns to improve air storage capacity and sealing.

[0004] However, in most existing air energy storage systems, the air compressors used for compressed air are not suitable for filtering dust when they are ventilated and cooled by heat dissipation channels. This dust can easily enter the compressor and cause mechanical wear, affecting the use of the device and reducing its service life. Therefore, this invention provides a series energy storage system, energy storage device, and power generation method. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a series energy storage system according to the present invention, comprising an air energy storage module, an air compression module, an air release module, a thermal management module, a power generation module and a control module;

[0007] The air energy storage module is used to store compressed air. The air compression module is used to compress external air and store it in the air energy storage module. The air release module is used to release the compressed air in the air energy storage module. The thermal management module is used to control the heat changes generated during air compression and release. The power generation module is used to use the released compressed air to drive power generation equipment to generate electricity. The control module is used to monitor and regulate the air charging and discharging process of the air energy storage module.

[0008] An energy storage device, which is applied to the above-mentioned series energy storage system, includes a housing, and a compressor body is fixedly installed inside the housing;

[0009] The housing has through-type heat dissipation slots on both the left and right sides. An installation ring is installed inside the heat dissipation slot, and a filter screen is fixedly connected inside the installation ring. Fixed rods are fixedly connected to the front and rear surfaces inside the heat dissipation slot. A connecting rod is fixedly connected between the two fixed rods. A motor is fixedly installed on the left end of the connecting rod on the right side through a support rod. A rotating rod is fixedly connected to the output end of the motor. A cooling fan blade is fixedly connected to the left end of the rotating rod.

[0010] A pushing component is provided between the connecting rod and the fixing rod, the pushing component is in contact with the filter screen, and a limiting component is provided between the mounting ring and the heat dissipation groove.

[0011] Preferably, the pushing component includes an inner groove formed inside the fixed rod on the rear surface, a pneumatic component is provided inside the inner groove, a venting groove is formed inside the connecting rod, the inner groove and the venting groove communicate with each other, a guide groove is formed on one side inside the venting groove, a guide block slides through the guide groove, a through-hole is formed inside the guide block, the venting hole communicates with the venting groove, a through-hole is formed inside the venting hole, and a push plate is fixedly connected to one side of the guide block.

[0012] Preferably, the pneumatic assembly includes an electric push rod fixedly installed on the rear surface inside the inner groove, and a piston is fixedly connected to the output end of the electric push rod, with the piston being slidably and sealingly connected to the inner groove.

[0013] Preferably, the cross-section of the guide groove and the cross-section of the guide block are both T-shaped, and the side of the push plate is in contact with the outer surface of the filter screen.

[0014] Preferably, the limiting component includes a plurality of sliding grooves formed on the inner sidewall of the heat dissipation groove and evenly distributed therein, a sliding plate is slidably connected inside the sliding groove, a spring is fixedly connected between the sliding plate and the sliding groove, and the sliding plate is installed with a mounting ring.

[0015] Preferably, the mounting ring has a through hole corresponding to the sliding groove, and a mounting bolt passes through the through hole. The sliding plate has a through threaded hole corresponding to the through hole, and the mounting bolt is threadedly connected to the threaded hole.

[0016] Preferably, the sliding plate has a through guide hole inside the sliding groove, and a guide rod passes through the guide hole. The guide rod is fixedly connected to the sliding groove and slidably connected to the sliding plate.

[0017] A power generation method using a series energy storage system, comprising the following steps:

[0018] S1. Air is compressed and stored in the air energy storage module through the air compression module, and the air compression is monitored and regulated by the control module. When the air is compressed, the gas becomes hot, so the heat management module controls the heat change and prevents overheating.

[0019] S2. The compressed gas in the air energy storage module is released through the air release module, and the air release is monitored and regulated through the control module. When the compressed gas is released, the air expands and causes the gas temperature to drop. Therefore, the heat change is controlled through the thermal management module to avoid affecting the subsequent power generation efficiency.

[0020] S3. The generator uses the released compressed air to drive the generator to generate electricity. During the power generation process, the control module regulates the charging and discharging process of the air storage module to ensure the stability of power generation.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. The present invention discloses a series energy storage system, energy storage device, and power generation method. The energy storage system compresses and stores air in an air energy storage module through an air compression module, which can effectively store energy. When released, the energy of the compressed air can be converted into electrical energy, which is then used to drive a power generation device to generate electrical energy through a power generation module, thereby achieving efficient energy utilization.

[0023] 2. The series energy storage system, energy storage device, and power generation method described in this invention, wherein the compression device body inside the casing dissipates heat through two opposing heat dissipation slots during use, and the rotation of the rotating rod and cooling fan blades driven by the motor can accelerate heat dissipation. Furthermore, the installation ring and filter screen inside the heat dissipation slots can filter dust from the gas entering the casing, thereby preventing dust from entering the compression device body inside the casing and aggravating mechanical wear, thus avoiding affecting the use of the device and increasing the service life of the device.

[0024] 3. The series energy storage system, energy storage device and power generation method of the present invention can make the mounting ring and filter screen vibrate and clean by cooperating with the pushing component and the limiting component. The filter screen can be cleaned regularly as needed, and the filter screen can be avoided from being blocked and causing poor filtration effect. Thus, the device can meet more usage needs, and the mounting ring and filter screen can also be disassembled and replaced. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] Figure 1This is a schematic diagram of the energy storage system structure of the present invention;

[0027] Figure 2 This is a perspective view of the energy storage device of the present invention;

[0028] Figure 3 This is a front view of the energy storage device of the present invention;

[0029] Figure 4 This is a partial left sectional view of the energy storage device of the present invention;

[0030] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0031] Figure 6 yes Figure 4 Enlarged view at point B in the middle;

[0032] Figure 7 This is a partial right sectional view of the energy storage device of the present invention;

[0033] Figure 8 yes Figure 7 Enlarged view at point C;

[0034] Figure 9 yes Figure 7 Enlarged view at point D;

[0035] Figure 10 This is a schematic diagram of the power generation method flow structure of the present invention.

[0036] In the diagram: 1. Housing; 2. Heat dissipation groove; 3. Mounting ring; 4. Filter screen; 5. Compression device body; 6. Fixing rod; 7. Push plate; 8. Through hole; 9. Mounting bolt; 10. Threaded hole; 11. Sliding plate; 12. Slide groove; 13. Guide rod; 14. Spring; 15. Connecting rod; 16. Vent groove; 17. Guide groove; 18. Guide block; 19. Vent hole; 20. Air outlet; 21. Inner groove; 22. Electric push rod; 23. Piston; 24. Support rod; 25. Motor; 26. Rotating rod; 27. Cooling fan blade. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0038] like Figure 1 As shown in the embodiment of the present invention, a series energy storage system includes an air energy storage module, an air compression module, an air release module, a thermal management module, a power generation module, and a control module.

[0039] The air energy storage module is used to store compressed air; the air compression module is used to compress external air and store it in the air energy storage module; the air release module is used to release the compressed air in the air energy storage module; the thermal management module is used to control the heat changes generated during air compression and release; the power generation module is used to use the released compressed air to drive power generation equipment to generate electricity; and the control module is used to monitor and regulate the air charging and discharging process of the air energy storage module.

[0040] By compressing air and storing it in an air energy storage module, energy can be effectively stored. When released, the energy of the compressed air can be converted into electrical energy, which is then used to drive power generation equipment to produce electricity, achieving efficient energy utilization. The system uses a thermal management module to control the heat changes generated during air compression and release. By avoiding overheating or overcooling, the system's long-term stability and high efficiency can be ensured, and energy loss due to temperature fluctuations can be prevented. The control module monitors and regulates the air charging and discharging process of the air energy storage module to ensure that the system's charging and discharging state remains stable during power generation, thereby ensuring the stability of power generation and the continuity of power output. The air energy storage system uses air as the energy storage medium, which has a lower environmental impact compared to fossil fuel power generation. The system can realize the storage and release of clean energy and support sustainable energy development.

[0041] like Figure 2-9 As shown, an energy storage device is applied to the above-mentioned series energy storage system, including a housing 1, and a compressor body 5 is fixedly installed inside the housing 1;

[0042] The housing 1 has through-type heat dissipation slots 2 on both the left and right sides. An installation ring 3 is installed inside the heat dissipation slot 2. A filter screen 4 is fixedly connected inside the installation ring 3. Fixing rods 6 are fixedly connected to the front and rear surfaces inside the heat dissipation slot 2. A connecting rod 15 is fixedly connected between the two fixing rods 6. A motor 25 is fixedly installed on the left end of the connecting rod 15 on the right side through a support rod 24. A rotating rod 26 is fixedly connected to the output end of the motor 25. A cooling fan blade 27 is fixedly connected to the left end of the rotating rod 26.

[0043] A pushing component is provided between the connecting rod 15 and the fixed rod 6. The pushing component is in contact with the filter screen 4. A limiting component is provided between the mounting ring 3 and the heat dissipation groove 2.

[0044] During operation, the air is compressed by the compressor body 5 inside the housing 1, and the compressed gas is stored in an underground gas storage space extracted using drilling technology. The stored compressed gas can then be used for power generation, thus enabling energy storage. The compressor body 5 inside the housing 1 dissipates heat through two opposing heat dissipation slots 2, and the rotation of the rotating rod 26 and cooling fan blades 27 driven by the motor 25 accelerates heat dissipation. The mounting ring 3 and filter screen 4 inside the heat dissipation slots 2 filter dust from the gas entering the housing 1, preventing dust from entering the compressor body 5 and aggravating mechanical wear, thus extending the equipment's lifespan. Simultaneously, the cooperation of the pushing and limiting components allows the mounting ring 3 and filter screen 4 to vibrate and clean themselves. The filter screen 4 can be cleaned periodically as needed to prevent clogging and poor filtration, allowing the equipment to meet various usage requirements. Furthermore, the mounting ring 3 and filter screen 4 can be disassembled and replaced.

[0045] In a preferred embodiment of the present invention, the pushing component includes an inner groove 21 formed inside the fixed rod 6 on the rear surface. A pneumatic component is disposed inside the inner groove 21. A venting groove 16 is formed inside the connecting rod 15. The inner groove 21 communicates with the venting groove 16. A guide groove 17 is formed on one side inside the venting groove 16. A guide block 18 slides through the guide groove 17. A through-hole vent 19 is formed inside the guide block 18. The venting hole 19 communicates with the venting groove 16. A through-hole vent 20 is formed inside the venting hole 19. A push plate 7 is fixedly connected to one side of the guide block 18.

[0046] During operation, when cleaning the filter screen 4 inside the mounting ring 3 is required, the pneumatic component compresses the gas inside the inner groove 21. The compressed gas then pushes the push plate 7 through the vent groove 16 and vent hole 19, causing the mounting ring 3 and filter screen 4 to move under the control of the limiting component. After the push plate 7 moves, it causes the guide block 18 inside the guide groove 17 to move out of the connecting rod 15. When the vent hole 20 inside the guide block 18 moves out of the connecting rod 15, the gas inside the vent hole 19 leaks through the vent hole 20, causing the push plate 7 to disengage from pushing the mounting ring 3 and filter screen 4. Finally, the mounting ring 3 and filter screen 4 are controlled by the limiting component. When the device moves down to reset, the mounting ring 3 and the filter screen 4 will vibrate once to reset, which can clean the filter screen 4. At the same time, the push plate 7 does not need to move too far under the action of gas compression, and only needs to move a short distance. After the air leaks through the air outlet 20, the pushing force of the push plate 7 will gradually disappear, so the pushing force will not disappear immediately, resulting in a large reset vibration force between the mounting ring 3 and the filter screen 4. Then, the pneumatic components stop working. Therefore, when the mounting ring 3 and the filter screen 4 reset and vibrate under the action of the limiting component, there will be no large vibration, and it will not affect the connection between the filter screen 4 and the mounting ring 3. The filter screen 4 is cleaned through micro-vibration.

[0047] In a preferred embodiment of the present invention, the pneumatic assembly includes an electric push rod 22 fixedly installed on the rear surface inside the inner groove 21. A piston 23 is fixedly connected to the output end of the electric push rod 22, and the piston 23 is slidably connected to the inner groove 21 in a sealed manner. During operation, the electric push rod 22 is energized and drives the piston 23 to slide in a sealed manner inside the inner groove 21. The sliding of the piston 23 pushes the gas inside the inner groove 21 to be compressed and moved. The electric push rod 22 slowly pushes the piston 23 to move during operation, thereby avoiding damage to the mounting ring 3 and the filter screen 4 caused by the push plate 7 moving too fast.

[0048] In a preferred embodiment of the present invention, the cross-section of the guide groove 17 and the cross-section of the guide block 18 are both T-shaped, and the side of the push plate 7 is in contact with the outer surface of the filter screen 4. During operation, the movement of the push plate 7 is limited by the sliding of the T-shaped guide block 18 inside the guide groove 17, and the push plate 7 can only move left and right without rotating. At the same time, the contact between the push plate 7 and the filter screen 4 does not affect the disassembly of the filter screen 4.

[0049] In a preferred embodiment of the present invention, the limiting component includes a plurality of sliding grooves 12 formed on the inner sidewall of the heat dissipation groove 2 and evenly distributed therein. A sliding plate 11 is slidably connected inside the sliding groove 12. A spring 14 is fixedly connected between the sliding plate 11 and the sliding groove 12. The sliding plate 11 is installed with the mounting ring 3. During operation, the sliding plate 11 moves the mounting ring 3 to limit its movement by sliding inside the sliding groove 12. This also facilitates the limiting movement of the mounting ring 3 and the filter screen 4 during cleaning. At the same time, the spring 14 is stretched by the movement of the sliding plate 11, and its rebound force facilitates the reset vibration of the sliding plate 11, the mounting ring 3, and the filter screen 4.

[0050] In a preferred embodiment of the present invention, a through hole 8 is provided inside the mounting ring 3 corresponding to the sliding groove 12, and a mounting bolt 9 passes through the through hole 8. A through threaded hole 10 is provided inside the sliding plate 11 corresponding to the through hole 8, and the mounting bolt 9 is threadedly connected to the threaded hole 10. During operation, the mounting ring 3 and the sliding plate 11 are installed by the mounting bolt 9 passing through the through hole 8 and threadedly connected to the threaded hole 10 inside the sliding plate 11. The mounting ring 3 and the sliding plate 11 can be disassembled by the mounting bolt 9 disengaging from the threaded hole 10, which also facilitates the removal and replacement of the filter screen 4 inside the mounting ring 3 if it is damaged.

[0051] In a preferred embodiment of the present invention, the sliding plate 11 has a through-hole inside the slide groove 12, and a guide rod 13 passes through the guide hole. The guide rod 13 is fixedly connected to the slide groove 12 and slidably connected to the sliding plate 11. During operation, the guide rod 13 passes through the sliding plate 11, allowing the sliding plate 11 to be stably installed inside the slide groove 12. The sliding connection between the guide rod 13 and the guide hole limits and guides the sliding of the sliding plate 11 inside the slide groove 12, thereby making the movement of the mounting ring 3 and the filter screen 4 more stable when pushed, and making the reset vibration more stable, resulting in a better vibration cleaning effect of the filter screen 4.

[0052] like Figure 10 As shown, a power generation method using a series energy storage system includes the following steps:

[0053] S1. Air is compressed and stored in the air energy storage module through the air compression module, and the air compression is monitored and regulated by the control module. When the air is compressed, the gas becomes hot, so the heat management module controls the heat change and prevents overheating.

[0054] S2. The compressed gas in the air energy storage module is released through the air release module, and the air release is monitored and regulated through the control module. When the compressed gas is released, the air expands and causes the gas temperature to drop. Therefore, the heat change is controlled through the thermal management module to avoid affecting the subsequent power generation efficiency.

[0055] S3. The generator uses the released compressed air to drive the generator to generate electricity. During the power generation process, the control module regulates the charging and discharging process of the air storage module to ensure the stability of power generation.

[0056] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0057] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A series energy storage system, characterized in that: It includes an air energy storage module, an air compression module, an air release module, a thermal management module, a power generation module, and a control module; The air energy storage module is used to store compressed air; the air compression module is used to compress external air and store it in the air energy storage module; the air release module is used to release the compressed air in the air energy storage module; the thermal management module is used to control the heat changes generated during air compression and release; the power generation module is used to use the released compressed air to drive power generation equipment to generate electricity; and the control module is used to monitor and regulate the air charging and discharging process of the air energy storage module. The system also includes an energy storage device, which includes a housing (1) and a compression device body (5) is fixedly installed inside the housing (1). The housing (1) has through-type heat dissipation grooves (2) on both the left and right sides. An installation ring (3) is installed inside the heat dissipation groove (2). A filter screen (4) is fixedly connected inside the installation ring (3). Fixing rods (6) are fixedly connected to the front and rear surfaces inside the heat dissipation groove (2). A connecting rod (15) is fixedly connected between the two fixing rods (6). A motor (25) is fixedly installed on one side of the connecting rod (15) through a support rod (24). A rotating rod (26) is fixedly connected to the output end of the motor (25). A heat dissipation fan blade (27) is fixedly connected to the left end of the rotating rod (26). A pushing component is provided between the connecting rod (15) and the fixing rod (6), the pushing component is in contact with the filter screen (4), and a limiting component is provided between the mounting ring (3) and the heat dissipation groove (2); The pushing component includes an inner groove (21) inside a fixed rod (6) located away from the front end of the housing (1). A pneumatic component is provided inside the inner groove (21). A ventilation groove (16) is provided inside the connecting rod (15). The inner groove (21) communicates with the ventilation groove (16). A guide groove (17) is provided on one side of the ventilation groove (16). A guide block (18) slides through the guide groove (17). A through-hole (19) is provided inside the guide block (18). The ventilation hole (19) communicates with the ventilation groove (16). A through-hole (20) is provided inside the ventilation hole (19). A push plate (7) is fixedly connected to one side of the guide block (18).

2. An energy storage device, applied to a series energy storage system as described in claim 1, characterized in that: The pneumatic assembly includes an electric push rod (22) fixedly installed on the rear surface inside the inner groove (21). A piston (23) is fixedly connected to the output end of the electric push rod (22), and the piston (23) is in a sealed sliding connection with the inner groove (21).

3. The energy storage device according to claim 2, characterized in that: The cross-section of the guide groove (17) and the cross-section of the guide block (18) are both set in a T-shape, and the side of the push plate (7) is in contact with the outer surface of the filter screen (4).

4. The energy storage device according to claim 3, characterized in that: The limiting component includes multiple sliding grooves (12) evenly distributed on the inner sidewall of the heat dissipation groove (2). A sliding plate (11) is slidably connected inside the sliding groove (12). A spring (14) is fixedly connected between the sliding plate (11) and the sliding groove (12). The sliding plate (11) is installed with the mounting ring (3).

5. An energy storage device according to claim 4, characterized in that: The mounting ring (3) has a through hole (8) corresponding to the sliding groove (12) inside. A mounting bolt (9) passes through the through hole (8). The sliding plate (11) has a through threaded hole (10) corresponding to the through hole (8) inside. The mounting bolt (9) is threadedly connected to the threaded hole (10).

6. An energy storage device according to claim 5, characterized in that: The sliding plate (11) has a through guide hole inside the sliding groove (12), and a guide rod (13) passes through the guide hole. The guide rod (13) is fixedly connected to the sliding groove (12) and slidably connected to the sliding plate (11).

7. A power generation method using a series energy storage system, wherein the method employs the series energy storage system described in claim 1, characterized in that: Includes the following steps: S1. Air is compressed and stored in the air energy storage module through the air compression module, and the air compression is monitored and regulated by the control module. When the air is compressed, the gas will become hot, so the heat management module controls the heat change and prevents overheating. S2. The compressed gas in the air energy storage module is released through the air release module, and the air release is monitored and regulated through the control module. When the compressed gas is released, the air expands and causes the gas temperature to drop. Therefore, the heat change is controlled through the thermal management module to avoid affecting the subsequent power generation efficiency. S3. The generator uses the released compressed air to drive the generator to generate electricity. During the power generation process, the control module regulates the charging and discharging process of the air storage module to ensure the stability of power generation.

Images