Seabed energy storage device

Abstract

The invention provides a seabed energy storage device, the seabed energy storage device is electrically connected with electrical equipment on the sea surface, the seabed energy storage device comprises a mounting shell, the mounting shell comprises a shell body and at least two mounting plates, the side wall of the shell body is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are arranged in an openable and closable manner, and the mounting plates are arranged in the shell body; the at least two mounting plates are arranged in the mounting shell at intervals in the height direction of the shell, and a mounting cavity is formed between every two adjacent mounting plates; the power storage unit is arranged in the mounting cavity; the heat dissipation part is arranged in the mounting cavity, the heat dissipation part is used for conducting heat dissipation on the electricity storage unit, a heat dissipation flow channel is formed in the heat dissipation part, the first end of the heat dissipation flow channel communicates with the liquid inlet, and the second end of the heat dissipation flow channel communicates with the liquid outlet. Through the technical scheme provided by the invention, the problems that the construction of an electrochemical energy storage power station in the related technology is influenced by land space, the cost is increased by using an air conditioner to dissipate heat of a battery pack, and thermal runaway of a battery is caused can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage power stations, and in particular to a submarine energy storage device. Background Art

[0002] Electrochemical energy storage power stations use large battery packs to store the excess power of the power grid during the off-peak period, and then send it back to the power grid during the peak period to relieve power shortage. At present, the construction of electrochemical energy storage is mainly on land, mainly to meet the problem of regulating peak and valley electricity consumption by onshore new energy power generation.

[0003] In relevant technical centers, electrochemical energy storage power stations are mostly set up on land, and use air conditioners to dissipate heat from battery packs to achieve the use conditions of energy storage power stations. However, the construction of electrochemical energy storage power stations in the prior art will be affected by land space, and using air conditioners to dissipate heat from battery packs will increase costs and cause thermal runaway problems in batteries. Summary of the invention

[0004] The present invention provides a submarine energy storage device to solve the problem in the related art that the construction of an electrochemical energy storage power station is affected by land space, and that using air conditioning to dissipate heat from a battery pack increases costs and may also cause thermal runaway of the battery.

[0005] The present invention provides a submarine energy storage device, which is electrically connected to electrical equipment on the sea surface. The submarine energy storage device comprises: a mounting shell, comprising a shell and at least two mounting plates, a liquid inlet and a liquid outlet are arranged on the side wall of the shell, and the liquid inlet and the liquid outlet can be opened and closed, at least two mounting plates are arranged in the mounting shell at intervals along the height direction of the shell, each mounting plate extends in the lateral direction, and an mounting cavity is formed between two adjacent mounting plates; an electricity storage unit is arranged in the mounting cavity; a heat sink is arranged in the mounting cavity, the heat sink is used to dissipate heat for the electricity storage unit, a heat sink is arranged in the heat sink, a first end of the heat sink is connected to the liquid inlet, and a second end of the heat sink is connected to the liquid outlet.

[0006] Furthermore, the heat sink is a heat dissipation pipe, and the submarine energy storage device also includes a first pump body, which is arranged at the liquid outlet and is connected to the second end of the heat dissipation pipe.

[0007] Furthermore, the heat dissipation pipe includes a first pipe section, a U-shaped pipe section and a second pipe section, the first end of the first pipe section is connected to the liquid inlet, the second end of the first pipe section is connected to the first end of the U-shaped pipe section, the first end of the second pipe section is connected to the liquid outlet, the second end of the second pipe section is connected to the U-shaped pipe section, and the first pump body is connected to the second pipe section.

[0008] Furthermore, the submarine energy storage device also includes a fire-fighting assembly, which includes a water tank and a fire-fighting nozzle. The water tank is arranged in the installation cavity, the water tank is located above the power storage unit, and the fire-fighting nozzle is arranged on the water tank.

[0009] Furthermore, a smoke sensor, a temperature sensor and a controller are arranged in the installation cavity. The smoke sensor, the temperature sensor and the fire sprinkler are all connected to the controller signal. The controller controls the fire sprinkler to open according to the detection signal of the smoke sensor and / or the detection signal of the temperature sensor.

[0010] Furthermore, the top of the shell has a fire inlet connected to seawater. The fire inlet, smoke sensor, and temperature sensor are all connected to the controller signal. The controller controls the opening of the fire inlet according to the detection signal of the smoke sensor and / or the detection signal of the temperature sensor. The fire inlet is connected to the water tank.

[0011] Furthermore, filter screens are provided at both the liquid inlet and the fire inlet.

[0012] Furthermore, the seabed energy storage device also includes a thermal insulation component, which includes a mounting column and a heat exchange pipeline, wherein the first end of the mounting column is arranged at the bottom of the shell, the second end of the mounting column extends in a direction away from the shell, and the second end of the mounting column extends into the seabed, and a heat exchange cavity is arranged in the mounting column, wherein a part of the heat exchange pipeline is arranged in the heat exchange cavity, and another part of the heat exchange pipeline is arranged in the shell.

[0013] Furthermore, the insulation component also includes a second pump body, and the cavity between the bottom wall of the shell and the lowest mounting plate constitutes a placement cavity. The second pump body is located in the placement cavity and is arranged on the bottom wall of the shell. The heat exchange pipeline is connected to the second pump body, and another part of the heat exchange pipeline is arranged on the lowest mounting plate.

[0014] Furthermore, a plurality of mounting columns, a plurality of heat exchange pipelines and a plurality of second pump bodies are arranged at the bottom of the shell, a heat exchange pipeline is arranged on each mounting plate, and the plurality of second pump bodies are arranged in the placement cavity.

[0015] By applying the technical solution of the present invention, the submarine energy storage device can be electrically connected to the electrical equipment on the sea surface, and then the excess electric energy can be transported to the submarine energy storage device during peak and valley electricity consumption, and then the electric energy can be stored in the submarine energy storage device, and when electricity is needed, the electric energy stored in the submarine energy storage device can be directly transported to the electrical equipment on the sea surface, thereby avoiding the influence of land space. The submarine energy storage device includes a mounting shell, an electric storage unit and a heat sink, at least two mounting plates of the mounting shell are arranged in the mounting shell at intervals along the height direction of the shell, a liquid inlet and a liquid outlet are arranged on the side wall of the shell, and both the liquid inlet and the liquid outlet can be opened and closed, an installation cavity is formed between two adjacent mounting plates, an electric storage unit is arranged in the installation cavity, the electric storage unit is arranged on the mounting plate, and the heat sink in the mounting cavity is used to dissipate the heat of the electric storage unit, so that the electric storage unit can be prevented from thermal runaway and damage to the electric storage unit. Specifically, the first end of the heat dissipation channel of the heat dissipation element is connected to the liquid inlet, and the second end of the heat dissipation channel is connected to the liquid outlet. By arranging the liquid inlet and the liquid outlet to be openable and closable, when the temperature of the power storage unit rises, in order to avoid thermal runaway of the power storage unit, the liquid inlet is opened, and seawater is discharged into the heat dissipation channel through the liquid inlet. The heat dissipation channel is used to exchange heat with the power storage unit, thereby avoiding an increase in the temperature of the power storage unit. The second end of the heat dissipation channel is connected to the liquid outlet, thereby ensuring that the seawater after heat exchange in the heat dissipation channel is discharged through the liquid outlet. In this way, it is convenient to use seawater to dissipate heat for the power storage unit, avoid thermal runaway of the power storage unit, and ensure the practicability of the submarine energy storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of a submarine energy storage device provided according to an embodiment of the present invention is shown.

[0018] The above drawings include the following reference numerals:

[0019] 10. Installation shell; 11. Shell; 12. Fire inlet;

[0020] 20. Insulation assembly; 21. Install the column. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, an embodiment of the present invention provides a submarine energy storage device, which is electrically connected to the electrical equipment on the sea surface. The submarine energy storage device includes a mounting shell 10, a power storage unit and a heat sink. The mounting shell 10 includes a shell 11 and at least two mounting plates. A liquid inlet and a liquid outlet are arranged on the side wall of the shell 11. Both the liquid inlet and the liquid outlet can be opened and closed. At least two mounting plates are arranged in the mounting shell 10 at intervals along the height direction of the shell 11. Each mounting plate extends in the lateral direction. An installation cavity is formed between two adjacent mounting plates. The power storage unit is arranged in the installation cavity. The heat sink is arranged in the installation cavity. The heat sink is used to dissipate heat for the power storage unit. A heat dissipation channel is arranged in the heat sink. The first end of the heat dissipation channel is connected to the liquid inlet, and the second end of the heat dissipation channel is connected to the liquid outlet.

[0023] By using the submarine energy storage device provided in this embodiment, the submarine energy storage device can be electrically connected to the electrical equipment on the sea surface, and then when the electricity is used in peak and valley periods, the excess electric energy can be transported to the submarine energy storage device, and then the electric energy can be stored in the submarine energy storage device, and when electricity is needed, the electric energy stored in the submarine energy storage device can be directly transported to the electrical equipment on the sea surface, thereby avoiding the influence of the land space. The submarine energy storage device includes a mounting shell 10, an electric storage unit and a heat sink, at least two mounting plates of the mounting shell 10 are arranged in the mounting shell 10 at intervals along the height direction of the shell 11, a liquid inlet and a liquid outlet are arranged on the side wall of the shell 11, and the liquid inlet and the liquid outlet can be opened and closed, and an installation cavity is formed between two adjacent mounting plates, and an electric storage unit is arranged in the installation cavity, and the electric storage unit is arranged on the mounting plate, and the heat sink in the installation cavity is used to dissipate the heat of the electric storage unit, so that the electric storage unit can be prevented from thermal runaway and damage to the electric storage unit. Specifically, the first end of the heat dissipation channel of the heat dissipation element is connected to the liquid inlet, and the second end of the heat dissipation channel is connected to the liquid outlet. By arranging the liquid inlet and the liquid outlet to be openable and closable, when the temperature of the power storage unit rises, in order to avoid thermal runaway of the power storage unit, the liquid inlet is opened, and seawater is discharged into the heat dissipation channel through the liquid inlet. The heat dissipation channel is used to exchange heat with the power storage unit, thereby avoiding an increase in the temperature of the power storage unit. The second end of the heat dissipation channel is connected to the liquid outlet, thereby ensuring that the seawater after heat exchange in the heat dissipation channel is discharged through the liquid outlet. In this way, it is convenient to use seawater to dissipate heat for the power storage unit, avoid thermal runaway of the power storage unit, and ensure the practicability of the submarine energy storage device.

[0024] It should be noted that the liquid inlet and the liquid outlet are both isolated from the electricity storage unit in the installation cavity.

[0025] In this embodiment, the heat sink is a heat pipe, and the submarine energy storage device also includes a first pump body, which is arranged at the liquid outlet and connected to the second end of the heat pipe. The heat sink with the above structure is used to connect the first end of the heat pipe with the liquid inlet, and the pipeline of the heat pipe is a heat dissipation channel, so that after the liquid inlet is opened, seawater can enter the first end of the heat pipe, flow in the heat pipe, and then dissipate heat for the power storage unit. The second end of the heat pipe is connected to the first pump body, and then under the action of the first pump body, the seawater after heat exchange in the heat pipe can be pressurized and discharged from the submarine energy storage device, ensuring that the seawater in the heat pipe can overcome the water pressure by using the first pump body, and then the heat dissipation efficiency and working efficiency of the power storage unit can be ensured.

[0026] In this embodiment, the heat dissipation pipe includes a first pipe section, a U-shaped pipe section and a second pipe section, the first end of the first pipe section is connected to the liquid inlet, the second end of the first pipe section is connected to the first end of the U-shaped pipe section, the first end of the second pipe section is connected to the liquid outlet, the second end of the second pipe section is connected to the U-shaped pipe section, and the first pump body is connected to the second pipe section. With the above structure, the first end of the first pipe section is connected to the liquid inlet, the second end of the first pipe section is connected to the first end of the U-shaped pipe section, the second end of the U-shaped pipe section is connected to the first end of the second pipe section, the first body is connected to the second pipe section, and the second end of the second pipe section is connected to the liquid outlet, thereby improving the heat exchange efficiency of the heat dissipation pipe and ensuring that the power storage unit can work normally.

[0027] In this embodiment, the submarine energy storage device further includes a firefighting assembly, which includes a water tank and a fire sprinkler. The water tank is arranged in the installation cavity, the water tank is located above the power storage unit, and the fire sprinkler is arranged on the water tank. With the above structure, a water tank is arranged in the installation cavity, the water tank is located above the power storage unit, and the fire sprinkler is arranged on the water tank. In this way, the fire sprinkler can be used to spray water in the water tank, and then when the power storage unit catches fire, the fire sprinkler and the water tank can play a role in firefighting.

[0028] In this embodiment, a smoke sensor, a temperature sensor and a controller are arranged in the installation cavity, and the smoke sensor, the temperature sensor and the fire sprinkler are all connected to the controller signal, and the controller controls the fire sprinkler to open according to the detection signal of the smoke sensor and / or the detection signal of the temperature sensor. With the above structure, a smoke sensor, a temperature sensor and a controller are arranged in the installation cavity, and the signals detected by the smoke sensor and the temperature sensor are transmitted to the controller, and the controller can control the fire sprinkler to open, so that the automation degree of the fire protection component can be ensured.

[0029] like Figure 1 As shown, the top of the shell 11 has a fire inlet 12 connected to the seawater. The fire inlet 12, the smoke sensor, and the temperature sensor are all connected to the controller signal. The controller controls the fire inlet 12 to open according to the detection signal of the smoke sensor and / or the detection signal of the temperature sensor. The fire inlet 12 is connected to the water tank. With the above structure, the top of the shell 11 is provided with a fire inlet 12, which is controlled by the controller. The treacherous signals of the smoke sensor and the temperature sensor can be transmitted to the controller. The controller controls the fire inlet 12 to open, so that the seawater can be discharged into the water tank through the fire inlet 12, so that the fire-fighting component can be used to extinguish the fire of the power storage unit.

[0030] In this embodiment, filter screens are provided at both the liquid inlet and the fire-fighting inlet 12. With the above structure, by providing filter screens at the liquid inlet and the fire-fighting inlet 12, the filter screens can play a filtering role.

[0031] like Figure 1 As shown, the submarine energy storage device also includes a heat preservation component 20, which includes a mounting column 21 and a heat exchange pipeline. The first end of the mounting column 21 is arranged at the bottom of the shell 11, and the second end of the mounting column 21 extends in a direction away from the shell 11. The second end of the mounting column 21 extends into the seabed. A heat exchange cavity is arranged in the mounting column 21, wherein a part of the heat exchange pipeline is arranged in the heat exchange cavity, and the other part of the heat exchange pipeline is arranged in the shell 11. With the above structure, the mounting column 21 is arranged at the bottom of the shell 11, and the mounting column 21 is arranged in the heat exchange cavity. A part of the heat exchange pipeline is arranged in the heat exchange cavity, and the other part of the heat exchange pipeline is arranged in the shell 11. Then, when the mounting column 21 extends into the seabed, the geothermal heat can be exchanged through the heat exchange pipeline to ensure that the temperature in the shell 11 is at a suitable temperature for the power storage unit. Among them, since the temperature in the seabed is relatively low, the heat preservation component 20 can be used to keep the temperature in the shell 11 warm, so as to avoid the low temperature in the shell 11 affecting the working efficiency of the power storage unit.

[0032] In this embodiment, the heat preservation assembly 20 further includes a second pump body, the cavity between the bottom wall of the housing 11 and the mounting plate at the bottom constitutes a placement cavity, the second pump body is located in the placement cavity and is arranged on the bottom wall of the housing 11, the heat exchange pipeline is connected to the second pump body, and another part of the heat exchange pipeline is arranged on the mounting plate at the bottom. With the above structure, the second pump body is arranged in the placement cavity, so that the heat exchange pipeline can be used to achieve a circulating flow.

[0033] like Figure 1 As shown, the bottom of the shell 11 is provided with a plurality of mounting columns 21, a plurality of heat exchange pipelines and a plurality of second pump bodies, each mounting plate is provided with a heat exchange pipeline, and the plurality of second pump bodies are arranged in the placement cavity. With the above structure, a plurality of mounting columns 21 are arranged in the shell 11, so that it can be ensured that a heat exchange pipeline is arranged on each mounting plate, and the plurality of second pump bodies are arranged in a one-to-one correspondence with the plurality of heat exchange pipelines, so that it can be ensured that when there are a plurality of power storage units, the second body can be used to insulate the power storage units in the plurality of mounting cavities.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0036] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A submarine energy storage device, characterized in that: The subsea energy storage device is electrically connected to the electrical equipment on the sea surface, and the subsea energy storage device comprises: A mounting shell (10) comprises a shell (11) and at least two mounting plates, a liquid inlet and a liquid outlet are arranged on a side wall of the shell (11), the liquid inlet and the liquid outlet are both openable and closable, at least two mounting plates are arranged in the mounting shell (10) at intervals along the height direction of the shell (11), each mounting plate extends in a transverse direction, and a mounting cavity is formed between two adjacent mounting plates; A power storage unit, arranged in the installation cavity; A heat sink is arranged in the installation cavity, and is used to dissipate heat for the power storage unit. A heat sink is arranged in the heat sink, and a heat sink channel is connected to the liquid inlet at a first end and to the liquid outlet at a second end.

2. The submarine energy storage device according to claim 1, characterized in that: The heat sink is a heat dissipation pipe, and the submarine energy storage device further comprises a first pump body, which is arranged at the liquid outlet and is connected to the second end of the heat dissipation pipe.

3. The submarine energy storage device according to claim 2, characterized in that: The heat dissipation pipe includes a first pipe section, a U-shaped pipe section and a second pipe section. The first end of the first pipe section is connected to the liquid inlet, the second end of the first pipe section is connected to the first end of the U-shaped pipe section, the first end of the second pipe section is connected to the liquid outlet, the second end of the second pipe section is connected to the U-shaped pipe section, and the first pump body is connected to the second pipe section.

4. The subsea energy storage device according to any one of claims 1 to 3, characterized in that: The submarine energy storage device also includes a fire-fighting assembly, which includes a water tank and a fire-fighting nozzle. The water tank is arranged in the installation cavity, the water tank is located above the power storage unit, and the fire-fighting nozzle is arranged on the water tank.

5. The submarine energy storage device according to claim 4, characterized in that: A smoke sensor, a temperature sensor and a controller are arranged in the installation cavity. The smoke sensor, the temperature sensor and the fire sprinkler are all connected to the controller signal. The controller controls the fire sprinkler to open according to the detection signal of the smoke sensor and / or the detection signal of the temperature sensor.

6. The submarine energy storage device according to claim 5, characterized in that: The top of the shell (11) is provided with a fire inlet (12) connected to seawater; the fire inlet (12), the smoke sensor, and the temperature sensor are all connected to the controller signal; the controller controls the fire inlet (12) to open according to the detection signal of the smoke sensor and / or the detection signal of the temperature sensor; the fire inlet (12) is connected to the water tank.

7. The submarine energy storage device according to claim 6, characterized in that: The liquid inlet and the fire-fighting inlet (12) are both provided with filter screens.

8. The subsea energy storage device according to any one of claims 1 to 3, characterized in that: The seabed energy storage device further comprises a heat preservation component (20), wherein the heat preservation component (20) comprises a mounting column (21) and a heat exchange pipeline, wherein a first end of the mounting column (21) is arranged at the bottom of the shell (11), a second end of the mounting column (21) extends in a direction away from the shell (11), and the second end of the mounting column (21) extends into the seabed, and a heat exchange cavity is arranged in the mounting column (21), wherein a part of the heat exchange pipeline is arranged in the heat exchange cavity, and another part of the heat exchange pipeline is arranged in the shell (11).

9. The submarine energy storage device according to claim 8, characterized in that: The heat preservation component (20) also includes a second pump body, and the cavity between the bottom wall of the shell (11) and the mounting plate located at the bottom forms a placement cavity. The second pump body is located in the placement cavity and is arranged on the bottom wall of the shell (11). The heat exchange pipeline is connected to the second pump body, and another part of the heat exchange pipeline is arranged on the mounting plate located at the bottom.

10. The submarine energy storage device according to claim 9, characterized in that: The bottom of the shell (11) is provided with a plurality of the mounting columns (21), a plurality of the heat exchange pipelines and a plurality of the second pump bodies, each of the mounting plates is provided with the heat exchange pipeline, and the plurality of the second pump bodies are arranged in the placement cavity.

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