Adjustable heat dissipation structure and system for compressed air energy and gas storage

Abstract

The invention discloses an adjustable heat dissipation structure and system of a compressed air energy storage and gas storage. The adjustable heat dissipation structure of the compressed air energy storage and gas storage comprises a tank body; and the heat dissipation fins comprise fixed pieces and movable pieces, one ends of the fixed pieces are connected with the peripheral wall of the tank body, and the movable pieces are rotationally connected with the ends, away from the tank body, of the fixed pieces. According to the adjustable heat dissipation structure of the compressed air energy and gas storage, different heat dissipation requirements of the tank body can be met according to the heat dissipation strength requirements of different operation stages, the quality of a medium in the tank body is regulated and controlled, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of compressed air energy storage systems, and more specifically, to an adjustable heat dissipation structure and system for a compressed air energy storage reservoir. Background Art

[0002] In some related technologies, during the inflation or deflation process of the tank body, the temperature inside the tank body changes due to factors such as compression or expansion of the medium, thereby affecting the mass of the medium involved in doing work inside the tank body; in other related technologies, changes in the ambient temperature where the tank body is located have a greater impact on the internal temperature changes of the tank body during its operation, thereby affecting the storage quality of the medium in the tank body. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to propose an adjustable heat dissipation structure of a compressed air energy storage reservoir, which can meet the different heat dissipation requirements of the tank body according to the heat dissipation strength requirements of different operation stages, and realize the quality control of the medium in the tank body to reduce costs.

[0004] Another object of the present invention is to provide a compressed air energy storage system having the above-mentioned compressed air energy storage reservoir with adjustable heat dissipation structure.

[0005] According to an embodiment of the present invention, the adjustable heat dissipation structure of a compressed air energy storage reservoir includes: a tank body; heat dissipation fins, wherein the heat dissipation fins include a fixed plate and a movable plate, one end of the fixed plate is connected to the outer peripheral wall of the tank body, and the movable plate is rotatably connected to the end of the fixed plate away from the tank body.

[0006] According to the adjustable heat dissipation structure of the compressed air energy storage tank in the embodiment of the present invention, one end of the fixed plate of the heat dissipation fin is connected to the outer peripheral wall of the tank body, and the movable plate of the heat dissipation fin is rotatably connected to the end of the fixed plate away from the tank body, so that the movable plate can rotate relative to the fixed plate according to different heat dissipation requirements, and the thickness of the medium interlayer formed between the movable plate and the fixed plate can be changed, so as to achieve the purpose of changing the thermal resistance of the tank body wall. Therefore, different heat dissipation requirements of the tank body can be realized according to the heat dissipation strength requirements of different operating stages, and the required adjustment requirements can be met. It is also convenient to regulate the quality of the medium in the tank body, which is beneficial to optimize the volume of the tank body, reduce the floor space and investment of the tank body, and reduce costs.

[0007] In addition, the adjustable heat dissipation structure of the compressed air energy storage reservoir according to the above embodiment of the present invention may also have the following additional technical features:

[0008] According to the adjustable heat dissipation structure of the compressed air energy storage reservoir in some embodiments of the present invention, the length direction of the fixed plate is the length direction of the tank body, and the rotation axis of the movable plate extends along the length direction of the tank body.

[0009] According to some embodiments of the present invention, the width direction of the fixing plate is the radial direction of the tank body.

[0010] According to some embodiments of the present invention, the comprehensive heat transfer coefficient of the tank body is h, and h satisfies:

[0011]

[0012] The temperature of the medium in the tank body is T, the average pressure in the tank body is p, the total time of the tank body in the process of inflation, storage or deflation is t, and the relationship between the temperature of the medium in the tank body and the total time of the tank body in the process of inflation, storage or deflation is:

[0013]

[0014] During the process of inflation, storage or deflation of the tank body, the relationship between the average pressure in the tank body and the total time of inflation, storage or deflation of the tank body is:

[0015]

[0016] h 1 is the convective heat transfer coefficient in the tank body, h 2 is the external convection heat transfer coefficient of the tank body, R out is the thermal resistance of the tank wall, A is the surface area of ​​the tank, T w is the ambient temperature, c p is the constant pressure specific heat capacity of the medium, T in is the medium inlet temperature during the aeration stage, q in is the medium inlet flow rate during the aeration stage, c v is the constant volume specific heat capacity of the medium, q out is the outlet flow rate of the medium in the deflation stage, V is the volume of the tank body, R g is the medium gas constant.

[0017] According to some embodiments of the present invention, the minimum distance between the free end of the movable sheet and the center line of the tank body is d 3 , d 3 satisfy:

[0018] d 3 =L 1 -L 2 cosθ

[0019] R out satisfy:

[0020]

[0021] L 1 is the width of the fixing plate, L 2 is the width of the movable sheet, θ is the angle between the fixed sheet and the movable sheet, d 1 is the inner diameter of the tank body, d 2 is the outer diameter of the tank body, l is the length of the equal diameter section of the tank body, λ 1 is the thermal conductivity of the tank body material, λ 2 is the thermal conductivity of the medium.

[0022] According to some embodiments of the present invention, the heat dissipation fins are multiple and spaced apart along the circumferential direction of the tank body.

[0023] According to some embodiments of the present invention, the width of the movable sheet is smaller than the width of the fixed sheet and is equal to the distance between two adjacent fixed sheets.

[0024] According to some embodiments of the present invention, the maximum angle between the fixed sheet and the movable sheet is less than or equal to 90°.

[0025] According to some embodiments of the present invention, the adjustable heat dissipation structure of the compressed air energy storage reservoir further includes: a drive system, wherein the drive system is used to drive the movable sheet to rotate.

[0026] The compressed air energy storage system according to the embodiment of the present invention includes the adjustable heat dissipation structure of the compressed air energy storage reservoir according to the embodiment of the present invention.

[0027] According to the compressed air energy storage system of the embodiment of the present invention, one end of the fixed plate of the heat dissipation fin is connected to the outer peripheral wall of the tank body, and the movable plate of the heat dissipation fin is rotatably connected to the end of the fixed plate away from the tank body, so that the movable plate can rotate relative to the fixed plate according to different heat dissipation requirements, and the thickness of the dielectric interlayer formed between the movable plate and the fixed plate can be changed, so as to achieve the purpose of changing the thermal resistance of the tank body wall. Therefore, different heat dissipation requirements of the tank body can be realized according to the heat dissipation requirements of different operating stages, the required adjustment requirements can be met, and the quality of the medium in the tank body can be easily controlled, which is beneficial to optimize the volume of the tank body, reduce the floor space and investment of the tank body, and reduce costs.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 is a schematic structural diagram of a tank body according to an embodiment of the present invention;

[0031] Figure 2 is a cross-sectional view of a tank body according to an embodiment of the present invention;

[0032] Figure 3 It is a partial enlarged view of the tank body according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] 100. Adjustable heat dissipation structure of compressed air energy storage reservoir;

[0035] 10. Tank body;

[0036] 20. Heat dissipation fins; 21. Fixed plate; 22. Movable plate; 23. Dielectric interlayer. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, a first feature "above" or "below" the second feature may include the first and second features being directly in contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, and a first feature "above", "above" and "above" the second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is horizontally higher than the second feature.

[0040] The following describes an adjustable heat dissipation structure 100 of a compressed air energy storage reservoir according to an embodiment of the present invention with reference to the accompanying drawings.

[0041] Reference Figure 1-Figure 3 As shown, the adjustable heat dissipation structure 100 of the compressed air energy storage reservoir according to an embodiment of the present invention may include: a tank body 10 and heat dissipation fins 20 .

[0042] Specifically, the heat dissipation fin 20 includes a fixing plate 21, one end of which is connected to the outer wall of the tank body 10. The fixing plate 21 can effectively dissipate the heat in the tank body 10, thereby improving the storage quality of the medium (such as air) in the tank body 10. The fixing plate 21 can also improve the structural strength of the tank body 10, avoiding deformation of the tank body 10, which is beneficial to extending the service life.

[0043] In some related technologies, due to different requirements for heat dissipation in different operating stages of the tank body, for example, during the inflation or deflation of the tank body, the temperature inside the tank body changes due to factors such as compression or expansion of the medium, which will affect the mass of the medium involved in doing work in the tank body; in other related technologies, changes in the ambient temperature of the tank body have a greater impact on the internal temperature changes of the tank body during its operation, thereby affecting the storage quality of the medium in the tank body. For example, during the high-pressure or low-pressure gas storage process of the tank body, the tank body is affected by the ambient temperature and wind speed, and the temperature of the tank body is close to the ambient temperature during the gas storage process.

[0044] Therefore, in the present invention, if Figure 3 As shown, the heat dissipation fin 20 also includes a movable sheet 22, which is rotatably connected to an end of the fixed sheet 21 away from the tank body 10, so that the movable sheet 22 can be rotated relative to the fixed sheet 21 according to different heat dissipation requirements, thereby realizing the position adjustment of the movable sheet 22, and by adjusting the angle between the movable sheet 22 and the fixed sheet 21, the thickness of the dielectric interlayer 23 formed between the movable sheet 22 and the fixed sheet 21 is changed, thereby achieving the purpose of changing the thermal resistance of the wall of the tank body 10, and being able to realize different heat dissipation requirements of the tank body 10 according to the heat dissipation strength requirements of different operating stages, and further being able to control the temperature of the tank body 10 during the inflation, storage and deflation of the tank body 10 under design conditions and non-design conditions to meet the required adjustment requirements.

[0045] At the same time, during the inflation and deflation process of the tank body 10, the change in the temperature inside the tank body 10 and the change in the temperature of the tank body 10 caused by the change in the ambient temperature can be regulated by changing the thermal resistance of the wall of the tank body 10, so as to meet the different heat dissipation requirements of the tank body 10 under different working conditions and different operating conditions, and ensure that the tank body 10 operates close to the optimal working condition according to the different working processes and ambient temperatures of the tank body 10, ensure that the tank body 10 operates reliably, and facilitate the regulation of the quality of the medium in the tank body 10, which is conducive to optimizing the volume of the tank body 10, reducing the floor space and investment of the tank body 10, and reducing costs. For example, the angle between the fixed sheet 21 and the movable sheet 22 can be comprehensively regulated according to the ambient temperature and the operating stage of the tank body 10.

[0046] For example, in some embodiments, when the tank body 10 is in the design working condition, when the tank body 10 is inflated, the angle between the fixed plate 21 and the movable plate 22 is 0°, so that the thermal resistance of the wall of the tank body 10 is minimized, which can enhance heat exchange, and is beneficial to reducing the temperature of the tank body 10 after the inflation is completed, and it is convenient to increase the mass of the stored medium in the tank body 10 to meet the required temperature requirements; when the tank body 10 is storing air, the angle between the fixed plate 21 and the movable plate 22 is adjusted, thereby changing the thickness of the medium interlayer 23 formed between the movable plate 22 and the fixed plate 21, which can reduce heat loss and achieve the purpose of weakening heat dissipation, and facilitate the subsequent use of the medium in the tank body 10 to meet the required temperature requirements; when the tank body 10 is deflated, the angle between the fixed plate 21 and the movable part is 0°, so that the thermal resistance of the wall of the tank body 10 is minimized, which can enhance heat exchange, avoid the temperature increase of the medium in the tank body 10, ensure the reliability of deflation of the tank body 10, and meet the required temperature requirements.

[0047] When the tank body 10 is in a non-design condition, the angle between the fixed plate 21 and the movable part is controlled so that the temperature of the tank body 10 during inflation, storage or deflation is close to that under the design condition, thereby meeting the use requirements of the tank body 10.

[0048] In some embodiments, the heat sink fins 20 are metal parts, that is, the fixed plate 21 and the movable plate 22 are both metal parts. The metal heat sink fins 20 have a good heat exchange effect, ensure the reliability of heat dissipation, and can effectively improve the structural strength of the tank body 10, avoiding deformation of the tank body 10 and other problems.

[0049] In some embodiments, the fixing plate 21 is fixed to the tank body 10 by welding, ensuring that the fixing plate 21 is reliably fixed to the tank body 10, thereby ensuring that the heat dissipation fins 20 are reliably fixed to the tank body 10 and reducing production costs.

[0050] In some embodiments, the fixed sheet 21 and the movable sheet 22 are connected by a hinge to ensure that the fixed sheet 21 and the movable sheet 22 are reliably connected, which facilitates the movable sheet 22 to rotate relative to the fixed sheet 21. The structure is simple and easy to process and manufacture, which helps to reduce production costs.

[0051] In some embodiments, the tank body 10 is placed horizontally on the ground to ensure that the tank body 10 is placed stably and reliably, and the length direction of the tank body 10 is perpendicular to the windiest flow direction in the location of the tank body 10, which can enhance the external convective heat exchange of the tank body 10, meet the required heat exchange requirements, and ensure good heat exchange effect.

[0052] In addition, the fixed plate 21 can be located on the windward side and the movable plate 22 can be located on the leeward side, which can meet the required heat exchange requirements and facilitate the formation of a dielectric interlayer 23 between the fixed plate 21 and the movable plate 22, thereby facilitating the adjustment of the thermal resistance of the wall of the tank body 10 to meet the required adjustment requirements.

[0053] According to the adjustable heat dissipation structure 100 of the compressed air energy storage reservoir of the embodiment of the present invention, one end of the fixed plate 21 of the heat dissipation fin 20 is connected to the outer peripheral wall of the tank body 10, and the movable plate 22 of the heat dissipation fin 20 is rotatably connected to the end of the fixed plate 21 away from the tank body 10, so that the movable plate 22 can rotate relative to the fixed plate 21 according to different heat dissipation requirements, and can change the thickness of the medium interlayer 23 formed between the movable plate 22 and the fixed plate 21, so as to achieve the purpose of changing the thermal resistance of the wall of the tank body 10, so as to realize different heat dissipation requirements of the tank body 10 according to the heat dissipation strength requirements of different operation stages, meet the required adjustment requirements, and facilitate the regulation of the quality of the medium in the tank body 10, which is beneficial to optimize the volume of the tank body 10, reduce the floor space and investment of the tank body 10, and reduce costs.

[0054] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the length direction of the fixing plate 21 is the length direction of the tank body 10 (for example Figure 1 ), which can ensure reliable heat exchange of the heat dissipation fins 20, is conducive to improving the heat dissipation efficiency of the tank body 10, and is convenient for processing and manufacturing the fixed sheet 21, which can reduce production costs. In addition, the rotation axis of the movable sheet 22 extends along the length direction of the tank body 10, which is convenient for the movable sheet 22 to rotate relative to the fixed sheet 21, making the rotation more reliable, and is convenient for processing and manufacturing, which can reduce production costs.

[0055] It should be noted that, for the convenience of description, the directions such as "left and right directions" in the present invention are based on the directions shown in the drawings, but are not limitations on the directions in actual application.

[0056] According to some embodiments of the present invention, Figure 2 and Figure 3 As shown, the width direction of the fixing plate 21 is the radial direction of the tank body 10 , which enables the heat dissipation fins 20 to have a good heat dissipation effect in the radial direction, further enhancing the heat dissipation performance of the tank body 10 .

[0057] In some embodiments of the present invention, the comprehensive heat transfer coefficient of the tank body 10 is h, and h satisfies: The temperature of the medium in the tank body 10 is T, the average pressure in the tank body 10 is p, the total time of the tank body 10 in the process of inflation, storage or deflation is t, and the relationship between the temperature of the medium in the tank body 10 and the total time of the tank body 10 in the process of inflation, storage or deflation is: During the process of inflating, storing or deflation of the tank body 10, the relationship between the average pressure in the tank body 10 and the total time of the tank body 10 during the process of inflating, storing or deflation is:

[0058] Among them, h 1 is the convection heat transfer coefficient in the tank body 10, h 2 is the external convection heat transfer coefficient of the tank body 10, R out is the thermal resistance of the tank body 10 wall, A is the surface area of ​​the tank body 10, T w is the ambient temperature, c p is the constant pressure specific heat capacity of the medium, T in is the medium inlet temperature during the aeration stage, q in is the medium inlet flow rate during the aeration stage, c v is the constant volume specific heat capacity of the medium, q out is the outlet flow rate of the medium in the deflation stage, V is the volume of the tank body, R g is the medium gas constant.

[0059] Therefore, according to the above formula, by adjusting the angle between the movable plate 22 and the fixed plate 21, the purpose of changing the surface thermal resistance of the tank body 10 can be achieved, so that the comprehensive heat transfer coefficient of the tank body 10 can be adjusted, and further the temperature of the medium in the tank body 10 and the average pressure in the tank body 10 can be adjusted, ensuring that the temperature of the medium in the tank body 10 and the average pressure in the tank body 10 are within the required range, ensuring the stability of the temperature of the medium in the tank body 10 and the average pressure in the tank body 10, and ensuring the working stability of the tank body 10 during inflation, storage and deflation.

[0060] According to some embodiments of the present invention, the minimum distance between the free end of the movable piece 22 and the center line of the tank body 10 is d 3 , d 3 Satisfaction:d 3 =L 1 -L 2cosθ,R out satisfy: Among them, L 1 is the width of the fixing plate 21, L 2 is the width of the movable sheet 22, θ is the angle between the fixed sheet 21 and the movable sheet 22, d 1 is the inner diameter of the tank body 10, d 2 is the outer diameter of the tank body 10, l is the length of the equal diameter section of the tank body 10, λ 1 is the thermal conductivity of the tank body 10 material, λ 2 is the thermal conductivity of the medium.

[0061] Therefore, according to the above formula, by adjusting the minimum distance between the free end of the movable sheet 22 and the center line of the tank body 10, the thermal resistance of the wall of the tank body 10 can be adjusted, thereby adjusting the comprehensive heat transfer coefficient of the tank body 10. Therefore, by adjusting the minimum distance between the free end of the movable sheet 22 and the center line of the tank body 10, the angle between the movable sheet 22 and the fixed sheet 21 can be adjusted, which is convenient for controlling the rotation of the movable sheet 22, making the adjustment more accurate and convenient, and meeting different heat exchange requirements.

[0062] In some embodiments, Figure 1 As shown, the length of the fixing plate 21 is equal to the length of the equal diameter section of the tank body 10, which can ensure a good heat dissipation effect, is beneficial to improving the structural strength of the tank body 10, and is easy to process and manufacture.

[0063] In some embodiments of the present invention, Figure 1-Figure 3 As shown, there may be multiple (greater than or equal to two) cooling fins 20, and the multiple cooling fins 20 are spaced apart along the circumferential direction of the tank body 10. The multiple cooling fins 20 can improve the heat dissipation efficiency of the tank body 10, ensure uniform heat dissipation in the circumferential direction of the tank body 10, and ensure reliable heat dissipation.

[0064] In some embodiments, the angles between the multiple movable pieces 22 of the multiple heat dissipation fins 20 and the corresponding fixed pieces 21 may be the same or different, which can meet different control requirements and make the control more flexible and convenient.

[0065] According to some embodiments of the present invention, Figure 3 As shown, the width of the movable sheet 22 is smaller than that of the fixed sheet 21 , which can avoid interference between the movable sheet 22 and the tank body 10 during rotation, thereby ensuring the rotation reliability of the movable sheet 22 .

[0066] In addition, the width of the movable sheet 22 is equal to the spacing between two adjacent fixed sheets 21. Therefore, when the movable sheet 22 rotates to abut against the adjacent fixed sheet 21, a closed medium interlayer 23 can be formed between the movable sheet 22 and the adjacent fixed sheet 21, which can effectively weaken the heat exchange and meet the use requirements of the tank body 10.

[0067] In some embodiments of the present invention, Figure 3 As shown, the maximum angle between the fixed sheet 21 and the movable sheet 22 is less than or equal to 90°, that is, the angle between the fixed sheet 21 and the movable sheet 22 is θ and satisfies θ≤90°. Therefore, within the above range, the movable sheet 22 can be prevented from interfering with other structures during the rotation process, ensuring the rotation reliability of the movable sheet 22, and facilitating the formation of a dielectric interlayer 23 between the fixed sheet 21 and the movable sheet 22 to meet the required adjustment requirements. For example, in some specific embodiments, the maximum angle between the fixed sheet 21 and the movable sheet 22 can be 90°, 85°, 80°, 75°, 70°, etc.

[0068] According to some embodiments of the present invention, the adjustable heat dissipation structure 100 of the compressed air energy storage reservoir also includes a driving system, which can drive the movable sheet 22 to rotate, so as to adjust the angle between the movable sheet 22 and the fixed sheet 21 to meet the required adjustment requirements, and can be automated to make the adjustment more precise.

[0069] The compressed air energy storage system according to the embodiment of the present invention includes an adjustable heat dissipation structure 100 of the compressed air energy storage gas storage tank according to the embodiment of the present invention. Since the adjustable heat dissipation structure 100 of the compressed air energy storage gas storage tank according to the embodiment of the present invention has the above-mentioned beneficial technical effects, the compressed air energy storage system according to the embodiment of the present invention is connected to the outer peripheral wall of the tank body 10 through one end of the fixed plate 21 of the heat dissipation fin 20, and the movable plate 22 of the heat dissipation fin 20 is rotatably connected to the end of the fixed plate 21 away from the tank body 10, so that the movable plate 22 can rotate relative to the fixed plate 21 according to different heat dissipation requirements, and can change the thickness of the medium interlayer 23 formed between the movable plate 22 and the fixed plate 21, so as to achieve the purpose of changing the thermal resistance of the wall surface of the tank body 10, so as to realize different heat dissipation requirements of the tank body 10 according to the heat dissipation strength requirements of different operation stages, meet the required adjustment requirements, and facilitate the quality of the medium in the tank body 10. It is beneficial to optimize the volume of the tank body 10, reduce the floor space and investment of the tank body 10, and reduce costs.

[0070] In some embodiments, the compressed air energy storage system includes a compression system, a gas storage system and a turbine system. The compression system can convert electrical energy into potential energy. For example, the medium is compressed into high-pressure gas by a compressor, and the potential energy is stored in the gas storage system. When power generation is required, the potential energy (such as high-pressure gas) stored in the gas storage system can drive the turbine of the turbine system to work and generate electricity. The compressed air energy storage system can be used in large-scale energy storage power stations to meet the required energy storage and power supply needs, and has the advantages of fast start and stop, short construction period, and weak geographical restrictions, which can reduce production costs.

[0071] In addition, the compressed air energy storage system also includes a heat exchange system. The compression system can generate thermal energy. The heat exchange system can exchange heat with the medium flowing out of the compression system, so as to cool the medium and ensure the quality of the medium stored in the air storage system. The heat exchange system can also exchange heat with the medium flowing to the turbine system, so as to heat the medium and ensure the working efficiency of the turbine system.

[0072] At the same time, the gas storage system includes a gas storage reservoir, which includes multiple (greater than or equal to two) gas tanks, which are connected in parallel. The multiple gas tanks are used as pressure vessels to store the medium to meet the required storage needs. During the operation of the gas storage reservoir, the temperature change of the gas storage reservoir has a direct and obvious impact on the compressed air energy storage system, and the gas storage reservoir has different requirements for its heat dissipation strength at different operation stages.

[0073] Therefore, in the present invention, the gas storage tank is the tank body 10 of the present invention. The movable sheet 22 can be rotated relative to the fixed sheet 21 according to different heat dissipation requirements, so as to adjust the position of the movable sheet 22 and change the thickness of the dielectric interlayer 23 formed between the movable sheet 22 and the fixed sheet 21, so as to achieve the purpose of changing the wall thermal resistance of the tank body 10. Different heat dissipation requirements of the tank body 10 can be realized according to the heat dissipation requirements of different operation stages, and then the temperature of the tank body 10 can be controlled during the inflation, storage and deflation of the tank body 10 under design conditions and non-design conditions, so as to meet the regulation requirements of the gas storage.

[0074] The other structures and operations of the adjustable heat dissipation structure 100 of the compressed air energy storage reservoir and the compressed air energy storage system according to the embodiment of the present invention are known to ordinary technicians in the field and will not be described in detail here.

[0075] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A compressed air energy storage reservoir with adjustable heat dissipation structure, characterized in that: include: Tank body; The heat dissipation fins include a fixed plate and a movable plate, one end of the fixed plate is connected to the outer peripheral wall of the tank body, and the movable plate is rotatably connected to an end of the fixed plate away from the tank body.

2. The adjustable heat dissipation structure of the compressed air energy storage reservoir according to claim 1 is characterized in that: The length direction of the fixed sheet is the length direction of the tank body, and the rotation axis of the movable sheet extends along the length direction of the tank body.

3. The adjustable heat dissipation structure of the compressed air energy storage reservoir according to claim 2 is characterized in that: The width direction of the fixing plate is the radial direction of the tank body.

4. The adjustable heat dissipation structure of the compressed air energy storage reservoir according to claim 3 is characterized in that: The comprehensive heat transfer coefficient of the tank body is h, and h satisfies: The temperature of the medium in the tank body is T, the average pressure in the tank body is p, the total time of the tank body in the process of inflation, storage or deflation is t, and the relationship between the temperature of the medium in the tank body and the total time of the tank body in the process of inflation, storage or deflation is: During the process of inflation, storage or deflation of the tank body, the relationship between the average pressure in the tank body and the total time of inflation, storage or deflation of the tank body is: h1 is the convection heat transfer coefficient inside the tank body, h2 is the convection heat transfer coefficient outside the tank body, R out is the thermal resistance of the tank wall, A is the surface area of ​​the tank, T w is the ambient temperature, c p is the constant pressure specific heat capacity of the medium, T in is the medium inlet temperature during the aeration stage, q in is the medium inlet flow rate during the aeration stage, c v is the constant volume specific heat capacity of the medium, q out is the outlet flow rate of the medium in the deflation stage, V is the volume of the tank body, R g is the medium gas constant.

5. The adjustable heat dissipation structure of the compressed air energy storage reservoir according to claim 4 is characterized in that: The minimum distance between the free end of the movable piece and the center line of the tank body is d3, and d3 satisfies: d3=L1-L2cosθ R out satisfy: L1 is the width of the fixed plate, L2 is the width of the movable plate, θ is the angle between the fixed plate and the movable plate, d1 is the inner diameter of the tank body, d2 is the outer diameter of the tank body, l is the length of the equal diameter section of the tank body, λ1 is the thermal conductivity of the tank body material, and λ2 is the thermal conductivity of the medium.

6. The adjustable heat dissipation structure of the compressed air energy storage reservoir according to claim 1 is characterized in that: The heat dissipation fins are multiple and spaced apart from each other along the circumferential direction of the tank body.

7. The adjustable heat dissipation structure of the compressed air energy storage reservoir according to claim 6 is characterized in that: The width of the movable sheet is smaller than the width of the fixed sheet and is equal to the distance between two adjacent fixed sheets.

8. The adjustable heat dissipation structure of the compressed air energy storage reservoir according to claim 1 is characterized in that: The maximum angle between the fixed sheet and the movable sheet is less than or equal to 90°.

9. The adjustable heat dissipation structure of the compressed air energy storage reservoir according to claim 1 is characterized in that: Also includes: A driving system is used to drive the movable sheet to rotate.

10. A compressed air energy storage system, characterized in that: It comprises an adjustable heat dissipation structure of a compressed air energy storage reservoir according to any one of claims 1-9.

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