Integrated heat dissipation system of energy storage container

Abstract

The utility model belongs to the technical field of energy storage containers, and particularly discloses an integrated heat dissipation system of an energy storage container, which comprises a cold water source and the energy storage container. The energy storage container comprises a battery pack and a heat exchanger, the liquid cooling pipeline is arranged on one side of the battery pack, a first heat exchange pipe of the heat exchanger communicates with the liquid cooling pipeline to form a first circulation loop, and a heat exchange medium circulates in the first circulation loop. A second heat exchange pipe of the heat exchanger communicates with a cold water source to form a second circulation loop, and the cold water source provides industrial cooling water for the second circulation loop. And the heat exchange medium in the liquid cooling pipeline absorbs heat of the battery pack and then enters the first heat exchange pipe. In the heat exchanger, the industrial cooling water cools the heat exchange medium. Therefore, the industrial cooling water is used for indirectly cooling the battery pack, the structure is relatively simple, refrigeration equipment with high power consumption is avoided, the power loss is favorably reduced, the system efficiency is improved, and the system is economical and environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage containers, in particular to an integrated heat dissipation system of an energy storage container. Background Art

[0002] Generally speaking, energy storage battery containers mostly use air conditioning units to control the temperature of the liquid cooling pipes installed within them, and use these liquid cooling pipes to cool the battery pack to ensure that the battery pack operates in an optimal environment. The air conditioning unit has a complex structure, and some large-capacity energy storage containers require corresponding high-power air conditioning units. When used in high ambient temperatures, the air conditioning unit needs to dissipate heat outward to meet the cooling requirements of the battery pack. When used in winter when the ambient temperature is lower, it needs to absorb heat from the external environment to heat the battery pack to maintain the optimal operating temperature. Therefore, the energy consumption of the air conditioning unit is very high, and it needs to have both cooling and heating functions, which reduces system efficiency. In addition, the equipment cost of air conditioning units with cooling and heating functions is high, and a large amount of electricity is required to operate the air conditioning unit, which is neither economical nor environmentally friendly. Utility Model Content

[0003] The purpose of the utility model is to provide an integrated heat dissipation system for energy storage containers, which utilizes industrial cooling water to centrally dissipate heat for multiple energy storage containers, thereby meeting the cooling needs of battery packs in the energy storage containers. It does not require additional equipment costs and is economical and environmentally friendly.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] The utility model provides an integrated heat dissipation system for an energy storage container, comprising:

[0006] Cold water source, used to provide industrial cooling water;

[0007] An energy storage container includes a box body, and a battery pack, a circulating water pump, an internal circulation pipeline and a heat exchanger arranged inside the box body. A liquid cooling pipeline is provided on at least one side of the battery pack. The heat exchanger includes a first heat exchange tube and a second heat exchange tube. The first heat exchange tube, the internal circulation pipeline and the liquid cooling pipeline are connected to form a first circulation loop. A heat exchange medium circulates in the first circulation loop. The circulating water pump is arranged on the internal circulation pipeline. The second heat exchange tube is connected to the cold water source to form a second circulation loop. The industrial cooling water circulates in the second circulation loop.

[0008] Optionally, a first water inlet and a first water outlet are provided on one side of the heat exchanger, and the first water inlet and the first water outlet are connected to the internal circulation pipeline;

[0009] A second water inlet and a second water outlet are provided at the bottom of the heat exchanger. The second water inlet and the second water outlet are connected to an external circulation pipeline, and the external circulation pipeline is connected to the cold water source.

[0010] Optionally, the internal circulation pipeline includes a first water supply pipeline and a first return pipeline, and the first heat exchange pipe, the first water supply pipeline, the liquid cooling pipeline, and the first return pipeline are sequentially connected to form the first circulation loop;

[0011] The external circulation pipeline includes a second water supply pipeline and a second return pipeline. The second water supply pipeline, the second heat exchange pipe, the second return pipeline, and the cold water source are connected in sequence to form the second circulation loop.

[0012] Optionally, a plurality of battery mounting plates and a plurality of battery packs are provided in the box body, the plurality of battery mounting plates are stacked along the height direction of the box body, the battery packs correspond one-to-one to the battery mounting plates, and the battery packs are arranged on the battery mounting plates.

[0013] Optionally, a plurality of liquid cooling pipelines are provided in the box body, the liquid cooling pipelines correspond one-to-one to the battery mounting plate, the liquid cooling pipelines are arranged on the wall surface of the battery mounting plate close to the battery pack, and the plurality of liquid cooling pipelines are arranged in parallel.

[0014] Optionally, the liquid cooling pipeline is coiled in a serpentine shape on the wall surface of the battery mounting plate.

[0015] Optionally, there are multiple energy storage containers, and the cold water source is connected to the second heat exchange pipe of the heat exchanger of each energy storage container.

[0016] Optionally, the liquid cooling pipeline is a copper pipe.

[0017] Optionally, the heat exchange medium is an ethylene glycol aqueous solution.

[0018] Optionally, the cold water source is a cooling water tower.

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides an integrated heat dissipation system for an energy storage container, comprising a cold water source and an energy storage container. The energy storage container comprises a battery pack, a circulating water pump, an internal circulation pipeline, and a heat exchanger. The liquid cooling pipeline is arranged on one side of the battery pack. The heat exchanger comprises a first heat exchange tube and a second heat exchange tube. The first heat exchange tube, the internal circulation pipeline, and the liquid cooling pipeline are connected to form a first circulation loop. A heat exchange medium circulates within the first circulation loop, and the circulating water pump is arranged on the internal circulation pipeline. The second heat exchange tube is connected to a cold water source to form a second circulation loop. The cold water source is used to provide industrial cooling water for the second circulation loop. The heat exchange medium in the liquid cooling pipeline removes the heat generated by the battery pack, and the heated heat exchange medium then enters the first heat exchange tube. Within the heat exchanger, the industrial cooling water circulating in the second circulation loop cools the heat exchange medium in the first heat exchange tube. Thus, the industrial cooling water within the factory is used to indirectly cool the battery pack. The overall structure is relatively simple, and there is no high-power refrigeration equipment. This helps reduce power loss during heat dissipation of the energy storage container, improves system efficiency, and is economical, environmentally friendly, and highly reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the energy storage container provided in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the process flow of the integrated heat dissipation system for the energy storage container provided in an embodiment of the present utility model;

[0023] Figure 3 It is a structural schematic diagram of the battery mounting plate and liquid cooling pipeline provided in an embodiment of the present utility model.

[0024] In the picture:

[0025] 100, cold water source; 200, energy storage container; 210, box body; 211, battery mounting plate; 212, liquid cooling pipeline; 220, battery pack; 230, circulating water pump; 240, internal circulation pipeline; 241, first water supply pipeline; 242, first return pipeline; 250, heat exchanger; 251, first water inlet; 252, first water outlet; 253, second water inlet; 254, second water outlet; 260, external circulation pipeline; 261, second water supply pipeline; 262, second return pipeline. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0027] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] Energy storage containers are commonly installed in factories as a type of energy storage equipment. They can store excess electricity and assist in powering electrical equipment in the factory when needed. It should be noted that since the battery packs in the energy storage containers generate heat during charging and discharging, the batteries need to be cooled to avoid overheating. Most of the heat dissipation solutions in the prior art are to cool the battery packs by arranging air-conditioning units in the energy storage containers. On the one hand, the air-conditioning units require additional equipment expenses. On the other hand, the air-conditioning units also require a large amount of electricity to operate, which is neither economical nor environmentally friendly.

[0031] like Figure 1 and Figure 2As shown, this embodiment provides an integrated heat dissipation system for an energy storage container, including a cold water source 100 and an energy storage container 200. The energy storage container 200 includes a housing 210, a battery pack 220, a circulating water pump 230, an internal circulation pipeline 240, and a heat exchanger 250. The battery pack 220, the circulating water pump 230, the internal circulation pipeline 240, and the heat exchanger 250 are all disposed within the housing 210. A liquid cooling pipeline 212 is disposed on at least one side of the battery pack 220. The heat exchanger 250 includes a first heat exchange tube and a second heat exchange tube. The first heat exchange tube, the internal circulation pipeline 240, and the liquid cooling pipeline 212 are connected to form a first circulation loop. A heat exchange medium circulates within the first circulation loop. The circulating water pump 230 is disposed on the internal circulation pipeline 240 and can provide power for the circulation of the heat exchange medium within the first circulation loop. The heat exchange medium in the first circulation loop can be an ethylene glycol aqueous solution. The second heat exchange tube is connected to a cold water source 100 to form a second circulation loop. The cold water source 100 is used to provide industrial cooling water for the second circulation loop, and the industrial cooling water circulates within the second circulation loop. The industrial cooling water can be tap water or non-toxic industrial wastewater. Of course, the circulation of the industrial cooling water within the second circulation loop can also be powered by other fluid pumps (not shown in the figure), and the specific type of fluid pump is not limited.

[0032] During operation, the cold water source 100 supplies industrial cooling water to the second heat exchange tube. The heat exchange medium in the liquid cooling line 212 exchanges heat with the battery pack 220, removing the heat generated by the battery pack 220 through the heat exchange medium. The heated heat exchange medium then enters the first heat exchange tube. Within the heat exchanger 250, the heat exchange medium in the first heat exchange tube exchanges heat with the industrial cooling water, and the circulating industrial cooling water cools the heat exchange medium in the first heat exchange tube. It is important to note that the temperature of the industrial cooling water provided by the cold water source 100 remains essentially constant. This repetitive cycle allows the temperature of the battery pack 220 to be maintained at an optimal operating temperature, ensuring that the battery pack 220 can be efficiently charged and discharged.

[0033] Since this embodiment does not use high-power consumption equipment such as air-conditioning units (including compressors) for heat dissipation and cooling, but instead uses industrial cooling water in the factory to indirectly cool the battery pack 220, the overall structure is relatively simple, which is conducive to reducing the power loss of the energy storage container 200 during heat dissipation, improving system efficiency, and being economical, environmentally friendly, and highly reliable.

[0034] As an optional solution, in this embodiment, a first water inlet 251 and a first water outlet 252 are provided on one side of the heat exchanger 250, and the first water inlet 251 and the first water outlet 252 are connected to the internal circulation pipeline 240; the internal circulation pipeline 240 includes a first water supply pipeline 241 and a first return pipeline 242, the first water outlet 252 is connected to the first water supply pipe, and the first water inlet 251 is connected to the first return pipeline 242, thereby the first heat exchange pipe, the first water supply pipeline 241, the liquid cooling pipeline 212, and the first return pipeline 242 are connected in sequence to form a first circulation loop. After releasing heat in the heat exchanger 250, the heat exchange medium flows out of the heat exchanger 250 through the first water outlet 252, and enters the first water supply pipe and the liquid cooling pipeline 212 in sequence. After releasing cold energy in the liquid cooling pipeline 212 and cooling the battery pack 220, it continues to flow into the first return pipeline 242, and then flows back to the first heat exchange pipe in the heat exchanger 250 through the first water inlet 251.

[0035] A second water inlet 253 and a second water outlet 254 are provided at the bottom of the heat exchanger 250. The second water inlet 253 and the second water outlet 254 are connected to the external circulation pipeline 260, and the external circulation pipeline 260 is connected to the cold water source 100. Specifically, the external circulation pipeline 260 includes a second water supply pipeline 261 and a second return pipeline 262. The second water inlet 253 is connected to the second water supply pipeline 261, and the second water outlet 254 is connected to the second return pipeline 262. Thus, the second water supply pipeline 261, the second heat exchange pipe, the second return pipeline 262, and the cold water source 100 are connected in sequence to form a second circulation loop. Industrial cooling water flows from the cold water source 100 through the second water supply pipeline 261 and the second water inlet 253 into the second heat exchange tube within the heat exchanger 250. After releasing its coldness to the heat exchange medium within the heat exchanger 250, the industrial cooling water's temperature increases, while the temperature of the heat exchange medium decreases. The heated industrial cooling water then flows out of the heat exchanger 250 through the first water outlet 252, enters the second return water pipeline, and finally flows back to the cold water source 100, completing a cycle. The industrial cooling water can be cooled at the cold water source 100 to maintain a substantially constant temperature before entering the heat exchanger 250.

[0036] For example, cold water source 100 can be a cooling tower. The industrial cooling water flowing back to the cooling tower in the second return line can be naturally cooled within the cooling tower, eliminating energy consumption and promoting energy conservation and environmental protection. Of course, the cooling tower can also provide industrial cooling water for other equipment within the factory, improving cooling tower utilization and the integration of the energy storage container's integrated cooling system.

[0037] Continue to see Figure 1 and Figure 3In this embodiment, the energy storage container 200 is provided with multiple battery mounting plates 211 and multiple battery packs 220 within the housing 210. The multiple battery mounting plates 211 are stacked along the height of the housing 210, with the battery packs 220 corresponding one to each of the battery mounting plates 211. The multiple battery packs 220 increase the storage capacity of the energy storage container 200 and extend the power supply time.

[0038] Furthermore, a plurality of liquid cooling pipes 212 are provided in the box body 210. The liquid cooling pipes 212 correspond one-to-one to the battery mounting plate 211. The liquid cooling pipes 212 are arranged on the wall of the battery mounting plate 211 close to the battery pack 220. The plurality of liquid cooling pipes 212 are arranged in parallel. By providing the plurality of liquid cooling pipes 212, the plurality of battery packs 220 in the box body 210 can be cooled simultaneously. And because the plurality of liquid cooling pipes 212 are arranged in parallel, it helps to make the temperature of the plurality of battery packs 220 more uniform, and the temperature uniformity of the entire energy storage container 200 is good. It should be noted that the first water supply pipe 241 can be divided into a plurality of branches, each branch is connected to a liquid cooling pipe 212, and the plurality of liquid cooling pipes 212 are merged and enter the first return water pipe together, and then flow back to the first heat exchange pipe in the heat exchanger 250. Optionally, the liquid cooling pipe 212 can be coiled in a serpentine shape around the wall of the battery mounting plate 211, and copper tubes can be used for the liquid cooling pipe 212. This increases the heat exchange area between the liquid cooling pipe 212 and the battery pack 220. The copper tubes have better thermal conductivity and higher heat exchange efficiency, helping to quickly cool the battery pack 220 and extend its service life.

[0039] Of course, in other embodiments, multiple liquid cooling pipes 212 can also be arranged in series. In this case, the multiple liquid cooling pipes 212 are connected end-to-end, with the liquid cooling pipe 212 corresponding to the first battery pack 220 connected to the first water supply pipe 241, and the liquid cooling pipe 212 corresponding to the last battery pack 220 connected to the first water return pipe. This arrangement simplifies the piping design and facilitates layout and installation.

[0040] Continue to see Figure 2 In this embodiment, multiple energy storage containers 200 are provided, with the cold water source 100 communicating with the second heat exchange pipe of the heat exchanger 250 of each energy storage container 200. The cold water source 100 can simultaneously provide cooling for multiple energy storage containers 200, resulting in more efficient heat dissipation. Furthermore, multiple energy storage containers 200 can be placed side by side, improving space utilization, minimizing floor space, and creating a more organized factory layout.

[0041] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An integrated heat dissipation system for an energy storage container, characterized in that: include: A cold water source (100) for providing industrial cooling water; An energy storage container (200) comprises a box body (210), and a battery pack (220), a circulating water pump (230), an internal circulation pipeline (240) and a heat exchanger (250) arranged inside the box body (210); at least one side of the battery pack (220) is provided with a liquid cooling pipeline (212); the heat exchanger (250) comprises a first heat exchange tube and a second heat exchange tube; the first heat exchange tube, the internal circulation pipeline (240) and the liquid cooling pipeline (212) are connected to form a first circulation loop; a heat exchange medium flows in the first circulation loop; the circulating water pump (230) is arranged on the internal circulation pipeline (240); the second heat exchange tube is connected to the cold water source (100) to form a second circulation loop; the industrial cooling water flows in the second circulation loop.

2. The integrated heat dissipation system for energy storage container according to claim 1, characterized in that: A first water inlet (251) and a first water outlet (252) are provided on one side of the heat exchanger (250); the first water inlet (251) and the first water outlet (252) are in communication with the internal circulation pipeline (240); A second water inlet (253) and a second water outlet (254) are provided at the bottom of the heat exchanger (250); the second water inlet (253) and the second water outlet (254) are connected to an external circulation pipeline (260); and the external circulation pipeline (260) is connected to the cold water source (100).

3. The integrated heat dissipation system of the energy storage container according to claim 2, characterized in that: The internal circulation pipeline (240) comprises a first water supply pipeline (241) and a first return pipeline (242); the first heat exchange pipe, the first water supply pipeline (241), the liquid cooling pipeline (212), and the first return pipeline (242) are sequentially connected to form the first circulation loop; The external circulation pipeline (260) comprises a second water supply pipeline (261) and a second return pipeline (262); the second water supply pipeline (261), the second heat exchange pipe, the second return pipeline (262), and the cold water source (100) are sequentially connected to form the second circulation loop.

4. The integrated heat dissipation system for an energy storage container according to claim 1, characterized in that: A plurality of battery mounting plates (211) and a plurality of battery packs (220) are arranged in the box body (210); the plurality of battery mounting plates (211) are stacked in a height direction of the box body (210); the battery packs (220) correspond to the battery mounting plates (211) one by one, and the battery packs (220) are arranged on the battery mounting plates (211).

5. The integrated heat dissipation system for the energy storage container according to claim 4, characterized in that: A plurality of liquid cooling pipelines (212) are provided in the box body (210), the liquid cooling pipelines (212) correspond one to one with the battery mounting plate (211), the liquid cooling pipelines (212) are arranged on a wall surface of the battery mounting plate (211) on a side close to the battery pack (220), and the plurality of liquid cooling pipelines (212) are arranged in parallel.

6. The integrated heat dissipation system for the energy storage container according to claim 5, characterized in that: The liquid cooling pipeline (212) is coiled in a serpentine shape on the wall surface of the battery mounting plate (211).

7. The integrated heat dissipation system for an energy storage container according to claim 1, characterized in that: The energy storage container (200) is provided in plurality, and the cold water source (100) is in communication with the second heat exchange pipe of the heat exchanger (250) of each of the energy storage containers (200).

8. The integrated heat dissipation system of the energy storage container according to any one of claims 1 to 7, characterized in that: The liquid cooling pipeline (212) is a copper pipe.

9. The integrated heat dissipation system of the energy storage container according to any one of claims 1 to 7, characterized in that: The heat exchange medium is ethylene glycol aqueous solution.

10. The integrated heat dissipation system of the energy storage container according to any one of claims 1 to 7, characterized in that: The cold water source (100) is a cooling water tower.

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