Compressed air energy storage device based on nuclear energy

Abstract

The compressed air energy storage device based on nuclear energy comprises an air compressor and a first heat exchanger installed on the right side of the air compressor, a second heat exchanger is arranged on the right side of the first heat exchanger, an energy storage tank is arranged on the right side of the second heat exchanger, and a heat absorber is arranged on the right side of the energy storage tank. An expansion machine is arranged on the lower side of a heat absorber, a generator is arranged on the left side of the expansion machine, a purifier shell is arranged between a second heat exchanger and an energy storage tank, and a plurality of activated carbon bags are arranged in the purifier shell. Compressed air passes through the interior of the purifier shell and makes full contact with the activated carbon bag, oil gas components in the air are removed, the air entering the energy storage tank is purer, the fire explosion risk caused by oil gas is reduced, the service life of equipment is prolonged, pipeline blockage is avoided, and the safety of the equipment and personnel is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of air energy technology, specifically relating to a compressed air energy storage device based on nuclear energy. Background Technology

[0002] Nuclear compressed air energy storage is a new type of energy storage that integrates nuclear energy and compressed air energy storage technologies. It aims to solve the problems of stability and flexibility in energy storage and supply. It uses the heat or electricity generated by nuclear energy to drive an air compressor to compress air and store it in large-capacity storage spaces such as underground caves and abandoned mines. When energy needs to be released, the high-pressure air is released and drives a turbine generator to generate electricity through expansion, thereby realizing the storage and release of electrical energy and effectively balancing energy supply and demand.

[0003] However, when compressed air enters the energy storage tank, if the compressed air source contains a certain amount of oil and gas impurities, they will mix with the compressed air and cause violent combustion and explosion when they encounter a source of ignition or static electricity. Utility Model Content

[0004] The purpose of this invention is to provide a nuclear-powered compressed air energy storage device to solve the problem mentioned in the background art where, if the compressed air source contains a certain amount of oil and gas impurities, they will mix with the compressed air when the compressed air enters the energy storage tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nuclear energy-based compressed air energy storage device, comprising an air compressor and a first heat exchanger installed on the right side of the air compressor;

[0006] A second heat exchanger is provided on the right side of the first heat exchanger;

[0007] An energy storage tank is provided on the right side of the second heat exchanger;

[0008] A heat absorber is located on the right side of the energy storage tank, an expander is located below the heat absorber, and a generator is located on the left side of the expander.

[0009] A purifier housing is provided between the second heat exchanger and the energy storage tank, and multiple activated carbon packets are provided inside the purifier housing.

[0010] Preferably, the outer walls of both the left and right ends of the purifier housing are fixedly connected to connecting pipes, and one end of each connecting pipe is fixedly connected to a flange interface.

[0011] Preferably, a fixing column is provided inside the purifier shell, and a connecting shaft is fixedly connected to the upper and lower circular outer walls of the fixing column.

[0012] Preferably, the other end of each of the plurality of connecting shafts is driven to a perforated baffle to provide an adhesive position for the activated carbon pack.

[0013] Preferably, multiple blocks are fixedly connected at equal intervals to the inner circular walls at both ends of the purifier shell to limit the maximum rotation angle of the perforated baffle.

[0014] Preferably, each of the porous baffles and blocks has a magnetic block inside for magnetic adsorption, which restricts the position of the porous baffles, and the activated carbon particles filled inside the multiple activated carbon bags are of different sizes.

[0015] Preferably, a pressure relief valve is fixedly connected to the upper outer wall of the energy storage tank, and a data detector is provided on the front outer wall of the energy storage tank.

[0016] Preferably, a booster pump is provided on the upper side of both the first heat exchanger and the second heat exchanger, and a water inlet pipe is provided on the upper side of each of the booster pumps to transport the heat exchange fluid.

[0017] Preferably, both the first heat exchanger and the second heat exchanger are provided with a discharge pipe on their lower sides to discharge the fluid after heat exchange.

[0018] Preferably, a delivery pipeline is provided between the air compressor, the first heat exchanger, the second heat exchanger, the energy storage tank, the heat absorber, and the expander to ensure the normal flow of high-pressure gas.

[0019] Compared with the prior art, this utility model provides a nuclear-powered compressed air energy storage device, which has the following beneficial effects:

[0020] By installing a purifier housing and activated carbon packs, the compressed air passes through the inside of the purifier housing before entering the energy storage tank, and fully contacts the activated carbon packs to remove oil and gas components from the air. This makes the air entering the energy storage tank purer, reduces the risk of fire and explosion caused by oil and gas, extends the service life of the equipment, reduces corrosion and wear, avoids pipe blockage, and ensures the safety of equipment and personnel. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the nuclear-energy-based compressed air energy storage device of this utility model.

[0022] Figure 2 This is a schematic diagram of the energy storage tank structure of this utility model.

[0023] Figure 3 This is a schematic diagram of the air purifier shell area of ​​this utility model.

[0024] Figure 4 This is a partial structural schematic diagram of the front cross-sectional view of the air purifier shell area of ​​this utility model.

[0025] In the diagram: 1. Air compressor; 2. Delivery pipeline; 3. First heat exchanger; 4. Booster pump; 5. Water inlet pipe; 6. Second heat exchanger; 7. Purifier casing; 8. Energy storage tank; 9. Heat absorber; 10. Expander; 11. Generator; 12. Discharge pipe; 13. Pressure relief valve; 14. Data detector; 15. Flange interface; 16. Connecting pipe; 17. Fixed column; 18. Activated carbon bag; 19. Baffle; 20. Perforated baffle; 21. Connecting shaft. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides, for example Figure 1-4 The nuclear-powered compressed air energy storage device shown includes an air compressor 1 and a first heat exchanger 3 installed on the right side of the air compressor 1;

[0028] A second heat exchanger 6 is provided on the right side of the first heat exchanger 3;

[0029] An energy storage tank 8 is provided on the right side of the second heat exchanger 6;

[0030] A heat absorber 9 is installed on the right side of the energy storage tank 8, an expander 10 is installed below the heat absorber 9, and a generator 11 is installed on the left side of the expander 10. The air compressor 1 serves as the initial stage of energy storage, drawing in air from the outside and compressing it. This process converts mechanical energy into air pressure energy. The compressed high-temperature and high-pressure air first enters the first heat exchanger 3. The function of the first heat exchanger 3 is to recover part of the heat of the compressed air. Although the temperature of the air coming out of the first heat exchanger 3 is reduced, it may still be higher than the suitable storage temperature of the energy storage tank 8. The air then enters the second heat exchanger 6 for further cooling. After double cooling, the air pressure is still high. At this time, it is transported to the energy storage tank 8 for storage. When energy needs to be released, the high-pressure air in the energy storage tank 8 is released and first enters the heat absorber 9. The high-pressure air that has absorbed heat and increased in temperature enters the expander 10. The expander 10 is connected to the generator 11. Its rotation drives the rotor of the generator 11 to rotate in the magnetic field. According to the principle of electromagnetic induction, the generator 11 converts mechanical energy into electrical energy, thus realizing the process from compressed air energy storage to electrical energy output.

[0031] A purifier housing 7 is installed between the second heat exchanger 6 and the energy storage tank 8. Multiple activated carbon packets 18 are installed inside the purifier housing 7. The compressed air coming out of the second heat exchanger 6 has been cooled to a suitable storage range, but may still contain impurities such as oil and gas. The compressed air will enter the interior of the purifier housing 7. Under the constraint and guidance of the purifier housing 7, the compressed air flows evenly in the internal space, thereby ensuring that it can fully contact the multiple activated carbon packets 18 distributed therein. When the compressed air flows over the surface of the activated carbon, impurities such as oil and gas molecules will be adsorbed on the pore surface of the activated carbon, so that the compressed air that finally leaves the purifier housing 7 and enters the energy storage tank 8 reaches a high purity.

[0032] like Figure 3 and Figure 4 As shown, connecting pipes 16 are fixedly connected to the outer walls of both the left and right ends of the purifier housing 7. One end of each connecting pipe 16 is fixedly connected to a flange interface 15. A fixing column 17 is provided inside the purifier housing 7. The upper and lower circular outer walls of the fixing column 17 are fixedly connected to connecting shafts 21. The other end of the multiple connecting shafts 21 is driven to a perforated baffle 20 to provide an adhesive position for the activated carbon pack 18.

[0033] The connecting pipe 16 serves to guide compressed air in and out of the purifier housing 7. One end of the connecting pipe 16 is fixedly connected to the flange interface 15, which facilitates connection with the pipes of peripheral equipment such as the second heat exchanger 6 and the energy storage tank 8. The flange interface 15 is tightly connected to the flange of the corresponding pipe by bolts to form a sealed channel, ensuring that compressed air can smoothly enter the interior of the purifier housing 7 from the second heat exchanger 6 through the connecting pipe 16.

[0034] like Figure 4 As shown, multiple blocks 19 are fixedly connected at equal intervals to the inner circular walls at both ends of the purifier shell 7 to limit the maximum rotation angle of the porous baffle 20. Magnetic blocks are provided inside the multiple porous baffles 20 and blocks 19 for magnetic adsorption, limiting the position of the porous baffles 20. The activated carbon particles filled inside the multiple activated carbon bags 18 are of different sizes.

[0035] When replacing the activated carbon pack 18, the porous baffle 20 can be rotated to the left around the connecting shaft 21, so that the activated carbon pack 18 can be gradually removed from left to right. When replacing it, the activated carbon pack 18 is installed from right to left. After installation on the far right, the porous baffle 20 is rotated to the left and abuts against the stop block 19 for magnetic fixation.

[0036] like Figure 2 As shown, a pressure relief valve 13 is fixedly connected to the upper outer wall of the energy storage tank 8, and a data detector 14 is installed on the front outer wall of the energy storage tank 8.

[0037] During energy storage, if certain abnormal situations occur, such as the continuous operation of air compressor 1 leading to excessive high-pressure air entering energy storage tank 8, or the failure of the pressure regulating device within the system causing the pressure inside energy storage tank 8 to exceed the normal range, the pressure relief valve 13 will automatically open. It releases some of the high-pressure air, reducing the pressure inside the tank and preventing serious safety accidents such as rupture of energy storage tank 8 due to excessive pressure. Data detector 14 monitors various key data of the air inside energy storage tank 8 in real time, such as pressure, temperature, and humidity. This data is crucial for operators to fully understand the operating status of energy storage tank 8.

[0038] like Figure 1 As shown, a booster pump 4 is provided on the upper side of the first heat exchanger 3 and the second heat exchanger 6. A water inlet pipe 5 is provided on the upper side of the multiple booster pumps 4 to transport the heat exchange fluid. A discharge pipe 12 is provided on the lower side of the first heat exchanger 3 and the second heat exchanger 6 to discharge the heat exchanged fluid.

[0039] A booster pump 4 is installed on the upper side of both the first heat exchanger 3 and the second heat exchanger 6. Its function is to transport the heat exchange fluid into the heat exchanger through the inlet pipe 5. The discharge pipe 12 is installed on the lower side of the first heat exchanger 3 and the second heat exchanger 6 to discharge the heat exchanged fluid.

[0040] like Figure 1 As shown, a conveying pipe 2 is provided between the air compressor 1, the first heat exchanger 3, the second heat exchanger 6, the energy storage tank 8, the heat absorber 9, and the expander 10 to ensure the normal flow of high-pressure gas.

[0041] The conveying pipeline 2 installed between the air compressor 1, the first heat exchanger 3, the second heat exchanger 6, the energy storage tank 8, the heat absorber 9 and the expander 10 forms a flow path for high-pressure gas throughout the entire energy storage device.

[0042] The implementation principle of this embodiment is as follows: Air compressor 1, as the initial stage of energy storage, draws in air from the outside and compresses it. This process converts mechanical energy into air pressure energy. The compressed, high-temperature, high-pressure air first enters the first heat exchanger 3. The function of the first heat exchanger 3 is to recover part of the heat of the compressed air. Although the temperature of the air exiting the first heat exchanger 3 is reduced, it may still be higher than the suitable storage temperature of the energy storage tank 8. The air then enters the second heat exchanger 6 for further cooling. After double cooling, the air pressure is still high, and it is then transported to the energy storage tank 8 for storage. When energy needs to be released, the high-pressure air in the energy storage tank 8 is released and first enters the heat absorber 9. The high-pressure air, after absorbing heat and increasing its temperature, enters the expander 10. 10 is connected to generator 11. Its rotation drives the rotor of generator 11 to rotate in the magnetic field. According to the principle of electromagnetic induction, generator 11 converts mechanical energy into electrical energy, thus realizing the process from compressed air energy storage to electrical energy output. The compressed air coming out of the second heat exchanger 6 has been cooled to a suitable storage range, but may still contain impurities such as oil and gas. The compressed air will enter the interior of the purifier shell 7. Under the constraint and guidance of the purifier shell 7, the compressed air flows evenly in the internal space, thus ensuring that it can fully contact the multiple activated carbon packs 18 distributed therein. When the compressed air flows through the surface of the activated carbon, impurities such as oil and gas molecules will be adsorbed on the pore surface of the activated carbon, so that the compressed air that finally leaves the purifier shell 7 and enters the energy storage tank 8 reaches a high purity.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compressed air energy storage device based on nuclear energy, comprising an air compressor (1) and a first heat exchanger (3) installed on the right side of the air compressor (1); The right side of the first heat exchanger (3) is provided with a second heat exchanger (6); The right side of the second heat exchanger (6) is provided with an energy storage tank (8); The right side of the energy storage tank (8) is provided with a heat absorber (9), and the lower side of the heat absorber (9) is provided with an expander (10), and the left side of the expander (10) is provided with a generator (11); characterized in that A purifier shell (7) is arranged between the second heat exchanger (6) and the energy storage tank (8), and a plurality of activated carbon bags (18) are arranged in the purifier shell (7).

2. The nuclear energy based compressed air energy storage device of claim 1, wherein: Both left and right outer walls of the purifier shell (7) are fixedly connected with connecting pipes (16), and one end of each of the two connecting pipes (16) is fixedly connected with a flange interface (15).

3. The nuclear energy based compressed air energy storage device of claim 1, wherein: The inside of the purifier shell (7) is provided with a fixed column (17), and the upper and lower circular outer walls of the fixed column (17) are fixedly connected with connecting shafts (21).

4. The nuclear energy based compressed air energy storage device of claim 3, wherein: The other end of each of the plurality of connecting shafts (21) is drivingly connected with a perforated baffle (20) to provide an adhesive position for the activated carbon bag (18).

5. The nuclear energy based compressed air energy storage device of claim 1, wherein: The upper and lower circular inner walls of the purifier shell (7) are fixedly connected with a plurality of stop blocks (19) at equal intervals to limit the maximum turning angle of the perforated baffle (20).

6. The nuclear energy based compressed air energy storage device of claim 4, wherein: The interiors of the plurality of perforated baffles (20) and stop blocks (19) are provided with magnetic blocks and are magnetically adsorbed to limit the position of the perforated baffle (20), and the activated carbon particles filled in the plurality of activated carbon bags (18) are of different sizes.

7. The nuclear energy based compressed air energy storage device of claim 1, wherein: The upper outer wall of the energy storage tank (8) is fixedly connected with a pressure relief valve (13), and the front outer wall of the energy storage tank (8) is provided with a data detector (14).

8. The nuclear energy based compressed air energy storage device of claim 1, wherein: The upper sides of the first heat exchanger (3) and the second heat exchanger (6) are provided with booster pumps (4), and the upper sides of the plurality of booster pumps (4) are provided with water inlet pipes (5) to deliver heat exchange fluid.

9. The nuclear energy based compressed air energy storage device of claim 1, wherein: The lower sides of the first heat exchanger (3) and the second heat exchanger (6) are provided with discharge pipes (12) to discharge the heat-exchanged fluid.

10. The nuclear energy based compressed air energy storage device of claim 1, wherein: Delivery pipelines (2) are arranged between the air compressor (1), the first heat exchanger (3), the second heat exchanger (6), the energy storage tank (8), the heat absorber (9) and the expander (10) to ensure normal circulation of high-pressure gas.

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