A marine energy storage device

Abstract

This application relates to the field of energy storage equipment technology and discloses an offshore energy storage device, including: a container, a connecting assembly, and multiple floating mechanisms. The container has a receiving cavity. Along the height direction of the offshore energy storage device, the connecting assembly is installed at the bottom of the container. Multiple floating mechanisms are installed at the ends of the connecting assembly away from the container. Each floating mechanism includes a floating support, a floating drive assembly, and a lifting drive assembly. The floating support is installed on the connecting assembly, and both the floating drive assembly and the lifting drive assembly are installed on the floating support. The lifting drive assembly is arranged along the height direction of the offshore energy storage device. By changing the draft of the offshore energy storage device through the lifting drive assembly, the center of gravity height of the offshore energy storage device is changed, thereby improving the stability of the offshore energy storage device.

Description

Technical Field

[0001] This application relates to the field of energy storage equipment technology, and more particularly to an offshore energy storage device. Background Technology

[0002] Offshore wind power is an important direction for global energy transition. Its supporting energy storage system needs to operate stably in complex marine environments such as high humidity, high salt spray, and wave impact. Lithium battery energy storage has become the core technology choice for offshore wind power energy storage due to its high energy density, excellent charging and discharging efficiency, and fast response speed. However, the special nature of the marine environment places extremely high demands on the structural stability, environmental adaptability, safety protection, and ease of operation and maintenance of energy storage equipment. Most existing offshore wind power energy storage equipment relies on fixed platforms or simple floating devices, which face challenges in terms of deployment flexibility and operational reliability under dynamic sea conditions.

[0003] In existing technologies, lithium battery energy storage devices for offshore wind power generally suffer from a simple floating system design, lack adjustable buoyancy support and autonomous movement capability, making it difficult to dynamically adjust the draft according to sea conditions, and prone to capsizing or drifting in large waves. Summary of the Invention

[0004] This application provides an offshore energy storage device that reduces the risk of capsizing and improves the stability of the offshore energy storage device.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include: This application provides an offshore energy storage device, including: a container, a connecting assembly, and multiple floating mechanisms. Along the height direction of the offshore energy storage device, the connecting assembly is installed at the bottom of the container; multiple floating mechanisms are installed at the ends of the connecting assembly opposite to the container. Each floating mechanism includes a floating support, a floating drive assembly, and a lifting drive assembly. The floating support is installed on the connecting assembly, and both the floating drive assembly and the lifting drive assembly are installed on the floating support. The lifting drive assembly is arranged along the height direction of the offshore energy storage device, and changes the draft of the offshore energy storage device through the lifting drive assembly, thereby improving the stability of the offshore energy storage device.

[0006] Furthermore, the floating mechanism also includes a float assembly, which is installed at the end of the floating support away from the container, and a lifting drive assembly is installed on the float assembly, thereby improving the ease of installation of the lifting drive assembly.

[0007] Furthermore, the float assembly includes multiple floats and multiple mounting plates. The multiple floats are installed on the ends of the multiple mounting plates away from the container, forming multiple float units. The multiple float units are spaced apart, and an installation space is formed between adjacent float units. The lifting drive assembly is located within the installation space, which improves the installation convenience of the lifting drive assembly.

[0008] Furthermore, the floating drive assembly includes a floating drive component and a steering drive component, both of which are mounted on the floating support via a buoy assembly. The orientation of both the floating drive component and the steering drive component is perpendicular to the height direction of the offshore energy storage device, and the orientation of the floating drive component is tilted relative to the orientation of the steering drive component, thereby improving the mobility of the offshore energy storage device.

[0009] Furthermore, the floating mechanism includes at least two float assemblies, with adjacent float assemblies spaced apart to form a drive gap, and the floating drive component is installed within the drive gap; along the height direction of the offshore energy storage device, the steering drive component is installed at the upper end of the float assembly, improving the ease of installation of the floating drive assembly.

[0010] Furthermore, the floating support includes two side frames and a top plate. The two side frames are parallel to each other and are both installed at the end of the top plate away from the container. The floating drive assembly and the lifting drive assembly are both located between adjacent side frames, which improves the ease of installation of the floating drive assembly.

[0011] Furthermore, the container includes a container frame, multiple end plates, and a heat-conducting plate. The multiple end plates are installed on the container frame to enclose a receiving cavity, and the heat-conducting plate is attached to the inside of the end plates to facilitate heat dissipation of the container.

[0012] Furthermore, the offshore energy storage equipment also includes a ventilation box, which is installed inside the container; the ventilation box includes an air outlet that extends outside the container, and the ventilation box is adapted to discharge the air inside the containment cavity to the outside of the containment cavity, thereby improving the safety of the offshore energy storage equipment.

[0013] Furthermore, offshore energy storage equipment also includes air conditioning, which is installed outside the container to improve the safety of offshore energy storage equipment.

[0014] Furthermore, the connection assembly includes a connection plate mounted on the lower end face of the container, with at least a portion of the connection plate extending outside the container, thereby improving the stability of the offshore energy storage equipment.

[0015] By generating a certain thrust on the seawater through the lifting drive component, the draft of the floating mechanism is changed, which in turn changes the overall draft of the offshore energy storage device and the height of its center of gravity, thereby improving the stability of the offshore energy storage device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the offshore energy storage device provided in this application.

[0018] Figure 2 yes Figure 1 The diagram shows the structural schematic of the floating mechanism of the offshore energy storage device.

[0019] Figure 3 yes Figure 2 The diagram shows the unfolded shape of the floating mechanism.

[0020] Figure 4 yes Figure 1 The diagram shows the unfolded container of the offshore energy storage device.

[0021] Figure 5 yes Figure 4 The diagram shows the structure of the container after the end panels have been partially removed.

[0022] Explanation of reference numerals in the attached drawings: Container 1, Reception cavity 101, Container frame 102, End plate 103, Door panel 1031, Heat conduction plate 104, Mounting bracket 105, Lighting equipment 106, Connecting assembly 2, Connecting plate 201, Transition plate 202, Floating mechanism 3, Floating support 301, Side frame 3011, Top plate 3012, Floating drive assembly 302, Floating drive component 3021, Steering drive component 3022, Lifting drive assembly 303, Float assembly 304, Floating bucket 3041, Mounting plate 3042, Ventilation box 4, Air outlet 401, Air conditioner 5. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] like Figure 1 As shown, as one implementation, this application provides an offshore energy storage device, including a container 1, a connecting component 2, and multiple floating mechanisms 3. The container 1 is used to store and install the various components of the energy storage device. The connecting component 2 is used to connect the floating mechanisms 3 and the container 1. By increasing the distance between adjacent floating mechanisms 3 through the connecting component 2, the stability of the offshore energy storage device is improved. The floating mechanisms 3 are used to provide buoyancy to the container 1. At the same time, the floating mechanisms 3 can be used to adjust the draft of the container 1, further improving the stability of the offshore energy storage device.

[0025] Specifically, along the vertical direction of the offshore energy storage device, the connecting component 2 is installed at the bottom of the container 1 so that the floating mechanism 3 can be installed at the bottom of the container 1.

[0026] Multiple floating mechanisms 3 are installed at the ends of the connecting assembly 2 away from the container 1, and the multiple floating mechanisms 3 are spaced apart, that is, there is a certain gap between adjacent floating mechanisms 3, so that the area enclosed by the multiple floating mechanisms 3 is larger, thereby improving the floating stability of the container 1.

[0027] like Figure 2 and Figure 3 As shown, the floating mechanism 3 includes a floating support 301, a floating drive assembly 302, and a lifting drive assembly 303. The floating support 301 is installed at the bottom of the connecting assembly 2. The floating drive assembly 302 and the lifting drive assembly 303 are both installed on the floating support 301. The floating drive assembly 302 is used to provide power for the movement of the offshore energy storage device, and the lifting drive assembly 303 is used to change the draft of the floating mechanism 3.

[0028] The floating drive component 302 is oriented perpendicular to the height of the offshore energy storage device, enabling the offshore energy storage device to move horizontally. The lifting drive component 303 is arranged along the height of the offshore energy storage device. The lifting drive component 303 generates a certain thrust on the seawater, thereby changing the draft of the floating mechanism 3, which in turn changes the overall draft of the offshore energy storage device and the height of its center of gravity, thus improving the stability of the offshore energy storage device.

[0029] When the seawater surface is relatively calm, the lifting drive component 303 generates a downward thrust on the seawater, and the floating mechanism 3 floats up, making the distance between the container 1 and the seawater level larger, preventing the container 1 from contacting the seawater and slowing down the corrosion of the container 1 by the seawater.

[0030] When the sea surface fluctuates greatly, the lifting drive component 303 generates an upward thrust on the seawater, causing the floating mechanism 3 to sink, which lowers the center of gravity of the offshore energy storage device and thus improves the stability of the offshore energy storage device.

[0031] It should be noted that the direction of the thrust of the lifting drive assembly 303 on the seawater is determined by its rotation direction.

[0032] To more clearly illustrate the technical solution of this application, the following definitions are provided: Figure 1 The directions shown are up and down. The height direction of the offshore energy storage equipment is... Figure 1 The up and down directions are shown.

[0033] like Figure 2 and Figure 3As shown, as one implementation, the floating mechanism 3 also includes a float assembly 304. The float assembly 304 is used to provide greater buoyancy to the floating mechanism 3, so that the container 1 floats on the sea surface. The float assembly 304 is installed on the end of the floating support 301 away from the container 1. The lifting drive assembly 303 is installed on the float assembly 304. By installing the lifting drive assembly 303 on the float assembly 304, on the one hand, the installation structure of the lifting drive assembly 303 can be simplified, and on the other hand, it can be ensured that the lifting drive assembly 303 is always below the sea surface, ensuring that the lifting drive assembly 303 can stably provide upward or downward thrust to the container 1 and change the draft of the offshore energy storage device.

[0034] In one implementation, the float assembly 304 includes multiple floats 3041 and multiple mounting plates 3042, with the multiple floats 3041 mounted on the ends of the multiple mounting plates 3042 away from the container 1, forming multiple float units.

[0035] It should be noted that in this implementation, a floating bucket 3041 is installed on the lower end face of each mounting plate 3042. In some other implementations, multiple floating buckets 3041 are installed on the lower end face of each mounting plate 3042.

[0036] Specifically, the lower end face of the mounting plate 3042 has a groove structure, the float 3041 is installed in the groove structure and fixed in the groove structure by fixing pins or screws, thereby improving the installation stability of the float 3041 and the mounting plate 3042.

[0037] Multiple float units are spaced apart, forming an installation space between adjacent float units. The lifting drive assembly 303 is located within the installation space. By installing the lifting drive assembly 303 within the installation space, it is ensured that the lifting drive assembly 303 is always below the sea level.

[0038] In one implementation, the floating drive assembly 302 includes a floating drive component 3021 and a steering drive component 3022, both of which are mounted on the floating support 301 via a float assembly 304.

[0039] Among them, the floating drive 3021 is used to drive the offshore energy storage device to move at sea, and the steering drive 3022 is used to drive the offshore energy storage device to turn. The operation of the floating drive 3021 and the steering drive 3022 is controlled according to the movement requirements of the offshore energy storage device.

[0040] The orientation of the floating drive 3021 and the orientation of the steering drive 3022 are both perpendicular to the height direction of the offshore energy storage device, and the orientation of the floating drive 3021 is inclined relative to the orientation of the steering drive 3022.

[0041] Specifically, in this implementation, the orientation of the floating drive component 3021 is parallel to the left-right direction of the container 1, and the orientation of the steering drive component 3022 is tilted relative to the left-right and front-back directions of the container 1, so as to change the movement direction of the offshore energy storage device through the steering drive component 3022.

[0042] As one implementation method, the floating drive component 3021 uses a thruster.

[0043] The steering drive unit 3022 includes two propellers and two motors. The two motors are connected to the two propellers respectively, driving the propellers to rotate. The two propellers are perpendicular to each other. The steering of the offshore energy storage device is achieved by controlling one of the motors to work.

[0044] It should be noted that when both motors are working simultaneously, the steering drive unit 3022 can be used to drive the movement of offshore energy storage equipment.

[0045] The lifting drive assembly 303 includes a lifting blade and a lifting motor. The lifting blade is oriented parallel to the height direction of the offshore energy storage device. The lifting motor is connected to the lifting blade and is used to drive the lifting blade to rotate forward or backward, thereby changing the draft of the floating mechanism 3.

[0046] As one implementation, multiple float units are arranged along the left and right directions of container 1, so that the extension direction of float assembly 304 is parallel to the floating drive component 3021, preventing float assembly 304 from affecting the operation of floating drive component 3021 and improving the mobility efficiency of offshore energy storage equipment.

[0047] As one implementation, the floating mechanism 3 includes at least two float assemblies 304, with adjacent float assemblies 304 spaced apart to form a drive gap. The floating drive component 3021 is installed in the drive gap and is mounted on the floating support 301 through the float assemblies 304. This simplifies the installation structure of the floating drive component 3021 and ensures that the floating drive component 3021 is always below the sea level, so as to drive the movement of the offshore energy storage device through the floating drive component 3021.

[0048] Along the vertical direction of the offshore energy storage device, the steering drive component 3022 is installed on the upper end of the float assembly 304, so that the steering drive component 3022 and the floating drive component 3021 are misaligned along the vertical direction, preventing the steering drive component 3022 and the floating drive component 3021 from interfering with each other and improving the movement or steering stability of the offshore energy storage device.

[0049] It should be noted that in this implementation, the floating mechanism 3 includes two float assemblies 304. In some other implementations, the floating mechanism 3 may include three or more float assemblies 304.

[0050] like Figure 3 As shown, in one implementation, the floating support 301 includes two side frames 3011 and a top plate 3012. The two side frames 3011 are parallel to each other and are both installed at the end of the top plate 3012 away from the container 1. The floating drive assembly 302 and the lifting drive assembly 303 are both located between the adjacent side frames 3011.

[0051] Specifically, the mounting plate 3042 near the side frame 3011 is installed on the side frame 3011 by bolts or other connectors, which facilitates the installation of the floating drive assembly 302 and the lifting drive assembly 303 between adjacent side frames 3011.

[0052] The top plate 3012 is installed on the lower end face of the connecting assembly 2 by bolts and other connecting parts.

[0053] like Figure 1 As shown, in one implementation, the connecting component 2 includes a connecting plate 201 and a transition plate 202. The transition plate 202 is installed on the bottom surface of the container 1 by bolts or other connecting parts, and the connecting plate 201 is installed on the lower end surface of the transition plate 202, so that the connecting plate 201 is installed on the lower end surface of the container 1 through the transition plate 202.

[0054] Along the front-rear direction of container 1, at least a portion of the connecting plate 201 extends outside container 1, and two floating mechanisms 3 are respectively installed at the ends of the connecting plate 201 extending outside container 1, increasing the spacing between adjacent floating mechanisms 3, thereby improving the stability of the offshore energy storage equipment.

[0055] In this implementation, the offshore energy storage device has two connecting components 2, and each connecting component 2 is equipped with two floating mechanisms 3. In some other implementations, the offshore energy storage device has three or more connecting components 2 to accommodate containers 1 of different sizes.

[0056] It should be noted that in this implementation, the connecting component 2 is arranged along the length of the container 1.

[0057] like Figure 4 and Figure 5 As shown, in one implementation, container 1 has a receiving cavity 101 for installing various components of the energy storage device.

[0058] Specifically, container 1 includes a container frame 102, multiple end plates 103, and a heat-conducting plate 104. The multiple end plates 103 are installed on the container frame 102 to enclose a receiving cavity 101. The heat-conducting plate 104 is attached to the inner side of the end plate 103. The heat in the receiving cavity 101 is transferred to the end plate 103 through the heat-conducting plate 104, so as to transfer the heat in the receiving cavity 101 to the outside of container 1 and improve the cooling efficiency of container 1.

[0059] As one implementation method, a door panel 1031 is installed on the end plate 103 on one side of container 1 so that staff can enter container 1 through the door panel 1031.

[0060] As one implementation, container 1 also includes a mounting frame 105, which is fixed inside the receiving cavity 101 for installing components of the energy storage device.

[0061] As one implementation, container 1 also includes a lighting device 106 located above mounting bracket 105 for providing illumination to the receiving cavity 101.

[0062] like Figure 5 As shown, as one implementation method, the offshore energy storage device also includes a ventilation box 4, which is installed inside the container 1. The ventilation box 4 includes an air outlet 401 that extends to the outside of the container 1. The ventilation box 4 is adapted to exhaust the air inside the receiving cavity 101 to the outside of the receiving cavity 101, thereby reducing the temperature inside the container 1.

[0063] Specifically, a fan is installed inside the ventilation box 4 to discharge the air inside the receiving cavity 101 to the outside of the receiving cavity 101.

[0064] An air filter is installed inside the ventilation box 4. The air filter prevents foreign objects and moisture from flowing into the container 1 when the ventilation box 4 stops working.

[0065] like Figure 1 As shown, as one implementation method, the offshore energy storage device also includes an air conditioner 5, which is installed outside the container 1. The air conditioner 5 reduces the temperature inside the container 1, thereby improving the safety of the offshore energy storage device.

[0066] It should be noted that the air conditioner 5 has an indoor unit and an outdoor unit. The indoor unit is installed inside the container 1, and the outdoor unit is installed outside the container 1.

[0067] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A marine energy storage device, characterized in that, include: Container (1); A connecting component (2) is installed at the bottom of the container (1) along the height direction of the offshore energy storage device; Multiple floating mechanisms (3) are installed at the end of the connecting assembly (2) away from the container (1). Each floating mechanism (3) includes a floating support (301), a floating drive assembly (302), and a lifting drive assembly (303). The floating support (301) is installed on the connecting assembly (2), and the floating drive assembly (302) and the lifting drive assembly (303) are both installed on the floating support (301). The lifting drive assembly (303) is arranged along the height direction of the offshore energy storage device, and the draft of the offshore energy storage device is changed by the lifting drive assembly (303).

2. The offshore energy storage device according to claim 1, characterized in that, The floating mechanism (3) further includes a float assembly (304), which is installed at the end of the floating support (301) away from the container (1), and the lifting drive assembly (303) is installed on the float assembly (304).

3. The offshore energy storage device according to claim 2, characterized in that, The float assembly (304) includes a plurality of floats (3041) and a plurality of mounting plates (3042), wherein the plurality of floats (3041) are mounted on the ends of the plurality of mounting plates (3042) away from the container (1) to form a plurality of float units; Multiple float units are spaced apart, and an installation space is formed between adjacent float units. The lifting drive assembly (303) is located within the installation space.

4. The offshore energy storage device according to claim 2, characterized in that, The floating drive assembly (302) includes a floating drive component (3021) and a steering drive component (3022), both of which are mounted on the floating support (301) via the float assembly (304). The orientation of the floating drive (3021) and the orientation of the steering drive (3022) are both perpendicular to the height direction of the offshore energy storage device, and the orientation of the floating drive (3021) is inclined relative to the orientation of the steering drive (3022).

5. A marine energy storage device according to claim 4, characterized in that, The floating mechanism (3) includes at least two float assemblies (304), adjacent float assemblies (304) are spaced apart to form a driving gap, and the floating drive (3021) is installed in the driving gap; Along the height direction of the offshore energy storage device, the steering drive (3022) is installed on the upper end of the float assembly (304).

6. The offshore energy storage device according to claim 1, characterized in that, The floating support (301) includes two side frames (3011) and a top plate (3012). The two side frames (3011) are parallel to each other and are both installed at the end of the top plate (3012) away from the container (1). Both the floating drive assembly (302) and the lifting drive assembly (303) are located between adjacent side frames (3011).

7. The offshore energy storage device according to claim 1, characterized in that, The container (1) includes a container frame (102), multiple end plates (103) and a heat-conducting plate (104). The multiple end plates (103) are installed on the container frame (102) to enclose a receiving cavity (101), and the heat-conducting plate (104) is attached to the inside of the end plates (103).

8. A marine energy storage device according to claim 7, characterized in that, The offshore energy storage device also includes a ventilation box (4), which is installed inside the container (1); The ventilation box (4) includes an air outlet (401) extending outside the container (1), and the ventilation box (4) is adapted to discharge air from the containment cavity (101) to the outside of the containment cavity (101).

9. A marine energy storage device according to claim 1 or 8, characterized in that, The offshore energy storage device also includes an air conditioner (5), which is installed outside the container (1).

10. A marine energy storage device according to claim 1, characterized in that, The connecting assembly (2) includes a connecting plate (201) mounted on the lower end face of the container (1), and at least a portion of the connecting plate (201) extends outside the container (1).

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