40-chi energy storage container liquid cooling system

Abstract

The utility model relates to the field of energy storage containers, and discloses a 40-chi energy storage container liquid cooling system, battery systems are distributed on the front side and the rear side of the interior of a container, two liquid cooling units are arranged at one end of the exterior of the container, and a dehumidification air conditioner is arranged on each of the front side and the rear side of the exterior of the container. The dehumidification air conditioner air port is communicated with the interior of the container, two sets of pipeline systems are further arranged in the container, and each set of pipeline system comprises a first-stage liquid outlet pipe, a first-stage liquid return pipe, a second-stage liquid outlet pipe, a second-stage liquid return pipe, a third-stage liquid outlet pipe, a third-stage liquid return pipe and a battery liquid cooling plate arranged in the battery system. By arranging the two liquid cooling units on one side of the container, the device is more compact in structure, the two liquid cooling units are placed on one side of the container, the arrangement length of the liquid cooling pipes is relatively long, upper inlet and lower outlet are adopted, the flow is more uniform, each liquid cooling unit corresponds to one pipeline system, and the battery system can be effectively cooled.

Description

Technical Field

[0001] The utility model relates to the field of energy storage containers, in particular to a liquid cooling system for a 40-foot energy storage container. Background Art

[0002] Energy storage power stations are mainly electrochemical energy storage power stations. Electrochemical energy storage uses batteries as the basic energy storage unit. During the energy storage charge and discharge process, heat is generated due to chemical reactions. If the heat cannot be dissipated in time, the temperature of the combined battery (battery pack) will increase, which will affect the life of the battery pack over time.

[0003] In the Chinese utility model patent with the announcement number CN219350356U, a heat management system for an air-cooled energy storage power station is disclosed. The structure is as follows: Figure 1 As shown, it includes: a container body 1, an air intake system 2, an electrical management system 3, a battery system 4, and an air conditioner 5. Cold air or hot air is used to cool or heat the battery system 4, and the temperature is evenly distributed. The thermal management control is simple. It only requires the energy storage container 1 to use the air conditioning system 5, the strong wind fresh air system and the air duct system to effectively combine to form a closed-loop air-cooled thermal management system.

[0004] The inventors believe that the aforementioned related technologies have the following drawbacks: Existing solutions often rely on air-cooling systems, which require large floor space, have low heat exchange efficiency, and poor environmental compatibility; they also fail to consider the need for dehumidification within the container. Therefore, they have designed a liquid-cooling system for a 40-foot energy storage container. Summary of the Invention

[0005] In order to solve the technical problems that most air cooling systems occupy a large area, have low heat exchange efficiency and poor environmental versatility, the utility model provides a 40-foot energy storage container liquid cooling system.

[0006] The utility model adopts the following technical solution to achieve: a 40-foot energy storage container liquid cooling system, including a container, wherein battery systems are distributed on both the front and rear sides of the interior of the container, two liquid cooling units are provided on one end of the exterior of the container, and a dehumidifying air conditioner is provided on the front and rear sides of the exterior of the container, and the dehumidifying air conditioner vents are connected to the interior of the container;

[0007] Two sets of piping systems are also provided in the container, each set of piping systems includes a first-level liquid outlet pipe, a first-level liquid return pipe, a second-level liquid outlet pipe, a second-level liquid return pipe, a third-level liquid outlet pipe, a third-level liquid return pipe and a battery liquid cooling plate provided in the battery system. The two sets of piping systems are respectively connected to the two liquid cooling units to form a circulation loop.

[0008] As a further improvement of the above solution, a partition board is arranged between the container and the liquid cooling unit. The interior of the partition board is hollow and filled with heat insulation cotton. The liquid cooling unit will generate a certain degree of heat during operation. The partition board is used to separate the two to isolate the heat.

[0009] As a further improvement of the above solution, the first-level liquid outlet pipe is arranged along the middle of the top of the inner wall of the container, and one end thereof passes through the partition board and is connected to the liquid outlet port of the liquid cooling unit. The first-level liquid return pipe is arranged based on the H-shaped steel in the middle of the bottom of the container, and one end thereof passes through the partition board and is connected to the liquid return port of the liquid cooling unit. The first-level liquid outlet pipe is arranged upward through the partition board between the liquid cooling unit and the container, and then passes through the partition board into the container, and is arranged from the inside of the square tube of the battery system, running through the entire container, realizing water inlet from the upper side. The first-level liquid return pipe is based on the H-shaped steel at the bottom of the container, passes through the partition board into the container, and is arranged from the middle of the square tube of the battery system and the door column beam, running through the entire battery compartment, realizing water return from the lower side.

[0010] A plurality of equally spaced secondary liquid return pipes are arranged between the primary liquid outlet pipe and the primary liquid return pipe, and a group of secondary liquid outlet pipes is arranged on the left side of each secondary liquid return pipe. The secondary liquid return pipe, the secondary liquid outlet pipe, the primary liquid return pipe, the primary liquid outlet pipe and the liquid cooling unit form a circulation pipeline.

[0011] As a further improvement of the above scheme, a plurality of evenly distributed tertiary liquid outlet pipes are provided on the side of the secondary liquid return pipe, and a plurality of evenly distributed tertiary liquid return pipes are provided on the side of the secondary liquid outlet pipe. The tertiary liquid outlet pipes and the tertiary liquid return pipes are respectively connected to the battery liquid cooling plate in the battery system. The coolant can flow inside the battery liquid cooling plate through the tertiary liquid outlet pipes and the tertiary liquid return pipes to form a circulation loop, thereby reducing the temperature in the battery system.

[0012] As a further improvement of the above scheme, the inlet and outlet positions of the battery liquid cooling plate in the battery system are left-in and right-out, and a group of secondary liquid outlet pipes and secondary liquid return pipes are respectively provided on both sides of the multiple battery packs in the battery system. The tertiary liquid outlet pipe and tertiary liquid return pipe are respectively connected to the corresponding inlet and outlet positions on the battery liquid cooling plate in the battery system, so as to facilitate the flow inside the battery liquid cooling plate to form a circulation loop, thereby reducing the temperature in the battery system.

[0013] As a further improvement of the above solution, the three-stage liquid outlet pipe and the three-stage liquid return pipe are both formed tubes. Based on the position of the secondary pipeline, the water inlet and outlet of the battery pack, and the boundary conditions of the battery pack, the three-stage liquid cooling pipeline adopts a formed tube, which effectively avoids the bracket position of the battery liquid cooling plate.

[0014] As a further improvement to the above solution, the battery liquid cooling plate in the battery system adopts an integrated liquid cooling lower shell, and the bracket of the battery liquid cooling plate is integrated on the surface of the battery liquid cooling plate, wherein the bracket is installed on the left and right sides of the container square tube, which is conducive to preventing the pack from being dislocated due to vibration.

[0015] As a further improvement to the above solution, two sets of dehumidifying air conditioners are respectively installed at the left and right ends of the front and rear sides of the container. Since condensation water is easy to form in the liquid cooling pipeline during operation, and condensation water is easy to drip, which may affect electronic products, two dehumidifying air conditioners are configured in the container to ensure that the air humidity in the container is low and no condensation water is generated in the pipeline;

[0016] The dehumidification air conditioning air inlet on the left end of the rear side is connected to the interior of the container, and the dehumidification air conditioning outlet on the right end of the front side is connected to the interior of the container. The two sets of dehumidification air conditioning allow external air to enter the interior of the container and form a complete flow circuit, so that the internal airflow circulation performance is good, and the air entering the interior is dehumidified and then enters again, which can also dehumidify the air inside.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model sets two liquid cooling units on one side of the container, making the device structure more compact. The two liquid cooling units are placed on one side of the container, and the liquid cooling pipes are arranged relatively long, with top inlet and bottom outlet, so the flow rate is more uniform. In addition, each liquid cooling unit corresponds to a set of piping systems, which can effectively cool the battery system and improve the heat exchange effect.

[0019] 2. Based on the position of the secondary pipeline, the water inlet and outlet of the battery pack, and the boundary conditions of the battery pack, the liquid cooling tertiary pipeline adopts a formed tube to effectively avoid the bracket position of the liquid cooling plate;

[0020] 3. The battery liquid cooling plate in the battery system adopts an integrated liquid cooling lower shell, and the bracket of the battery liquid cooling plate is integrated on the surface of the battery liquid cooling plate. The bracket is installed on the left and right sides of the container square tube, which helps to prevent the pack from being dislocated due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the prior art mentioned in the background technology;

[0022] Figure 2 This is a layout diagram of a liquid cooling system in a 40-foot energy storage container;

[0023] Figure 3 for Figure 2 Structural distribution diagram of the central piping system;

[0024] Figure 4 for Figure 2 Schematic diagram of the structure of a medium dehumidification air conditioner.

[0025] Description of main symbols:

[0026] 100. Container; 200. Battery system; 300. Partition board; 400. Liquid cooling unit; 500. Dehumidification air conditioner; 600. Piping system; 601. Primary liquid return pipe; 602. Secondary liquid return pipe; 603. Tertiary liquid outlet pipe; 604. Tertiary liquid return pipe; 605. Secondary liquid outlet pipe; 606. Primary liquid outlet pipe. DETAILED DESCRIPTION

[0027] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0028] Please combine Figure 2-Figure 4 A 40-foot energy storage container liquid cooling system according to this embodiment includes a container 100. Battery systems 200 are distributed on both the front and rear sides of the container 100. Two liquid cooling units 400 are provided at one end of the exterior of the container 100. A dehumidifying air conditioner 500 is provided on each of the front and rear sides of the exterior of the container 100, and the air outlets of the dehumidifying air conditioner 500 are connected to the interior of the container 100.

[0029] Two sets of piping systems 600 are also provided in the container 100. Each set of piping systems 600 includes a first-level liquid outlet pipe 606, a first-level liquid return pipe 601, a second-level liquid outlet pipe 605, a second-level liquid return pipe 602, a third-level liquid outlet pipe 603, a third-level liquid return pipe 604, and a battery liquid cooling plate provided in the battery system 200. The two sets of piping systems 600 are respectively connected to the two liquid cooling units 400 to form a circulation loop.

[0030] A partition board 300 is provided between the container 100 and the liquid cooling unit 400. The partition board 300 is hollow inside and filled with heat-insulating cotton. The liquid cooling unit 400 will generate a certain degree of heat during operation. The partition board 300 is used to separate the two to isolate the heat.

[0031] The primary liquid outlet pipe 606 is arranged along the middle of the top of the inner wall of the container 100, and one end thereof passes through the partition wall 300 to be connected to the liquid outlet port of the liquid cooling unit 400. The primary liquid return pipe 601 is arranged based on the H-shaped steel in the middle of the bottom of the container 100, and one end thereof passes through the partition wall 300 to be connected to the liquid return port of the liquid cooling unit 400.

[0032] The primary liquid outlet pipe 606 is arranged upward through the liquid cooling unit 400 and the partition wall 300 of the container 100, then passes through the partition wall 300 to enter the container 100, is arranged from the inside of the square tube of the battery system 200, and runs through the entire container 100, achieving water inlet from the upper side. The primary liquid return pipe 601 is based on the H-shaped steel at the bottom of the container 100, passes through the partition wall 300 to enter the container 100, and is arranged between the square tube of the battery system 200 and the door column beam, running through the entire battery compartment, achieving water return from the lower side.

[0033] A plurality of equally spaced secondary liquid return pipes 602 are arranged between the primary liquid outlet pipe 606 and the primary liquid return pipe 601, and a group of secondary liquid outlet pipes 605 are arranged on the left side of each secondary liquid return pipe 602. The secondary liquid return pipes 602, the secondary liquid outlet pipes 605, the primary liquid return pipe 601, the primary liquid outlet pipe 606 and the liquid cooling unit 400 form a circulation pipeline.

[0034] The side of the secondary liquid return pipe 602 is provided with multiple evenly distributed tertiary liquid outlet pipes 603, and the side of the secondary liquid outlet pipe 605 is provided with multiple evenly distributed tertiary liquid return pipes 604. The tertiary liquid outlet pipes 603 and the tertiary liquid return pipes 604 are respectively connected to the battery liquid cooling plate in the battery system 200. The coolant can flow inside the battery liquid cooling plate through the tertiary liquid outlet pipes 603 and the tertiary liquid return pipes 604 to form a circulation loop, thereby reducing the temperature in the battery system 200.

[0035] The inlet and outlet positions of the battery liquid cooling plate in the battery system 200 are left-in and right-out. A group of secondary liquid outlet pipes 605 and secondary liquid return pipes 602 are respectively provided on both sides of the multiple battery packs in the battery system 200. The tertiary liquid outlet pipe 603 and the tertiary liquid return pipe 604 are respectively connected to the corresponding inlet and outlet positions on the battery liquid cooling plate in the battery system 200, so as to facilitate the flow inside the battery liquid cooling plate to form a circulation loop, thereby reducing the temperature in the battery system 200.

[0036] The three-stage liquid outlet pipe 603 and the three-stage liquid return pipe 604 are both formed tubes. Based on the position of the secondary pipeline, the water inlet and outlet of the battery pack, and the boundary conditions of the battery pack, the three-stage liquid cooling pipeline adopts formed tubes to effectively avoid the bracket position of the battery liquid cooling plate.

[0037] The battery liquid cooling plate in the battery system 200 adopts an integrated liquid cooling lower shell, and the bracket of the battery liquid cooling plate is integrated on the surface of the battery liquid cooling plate, wherein the bracket is installed on the left and right sides of the square tube of the container 100, which is conducive to preventing the pack from being dislocated due to vibration.

[0038] The two sets of dehumidifying air conditioners 500 are respectively arranged at the left and right ends of the front and rear sides of the container 100. The dehumidifying air conditioner air inlet at the rear left end is connected to the interior of the container, and the dehumidifying air conditioner air outlet at the front right end is connected to the interior of the container. Since condensation water is easy to form in the liquid cooling pipeline during operation, and condensation water is easy to drip, which may affect electronic products, two dehumidifying air conditioners 500 are configured in the container 100 to ensure that the air humidity in the container 100 is low and no condensation water is generated in the pipeline;

[0039] The two sets of dehumidifying air conditioners 500 allow external air to enter the container 100 and form a complete flow circuit, so that the internal airflow has good circulation performance. The airflow entering the interior is dehumidified and then enters again, which can also dehumidify the air inside.

[0040] The implementation principle of a 40-foot energy storage container liquid cooling system in the embodiment of the present application is as follows: standard energy storage containers have two sizes: 20 feet and 40 feet. The model we use is the 40-foot model. In actual use, the liquid cooling unit 400 has a liquid return port and a liquid outlet port. The first-level liquid return pipe 601 is connected to the liquid return port of the liquid cooling unit 400, the first-level liquid outlet pipe 606 is connected to the liquid outlet port of the liquid cooling unit 400, and the third-level liquid outlet pipe 603 is connected to the inlet of the battery liquid cooling plate, and the third-level liquid return pipe 604 is connected to the outlet of the battery liquid cooling plate.

[0041] Therefore, the coolant is discharged from the liquid outlet port of the liquid cooling unit 400 and transported to the tertiary liquid outlet pipe 603 through the primary liquid outlet pipe 606 and the secondary liquid outlet pipe 605 to the battery liquid cooling plate in the battery system 200. After the heat is absorbed by the battery cluster in the battery system 200, the heat is returned to the liquid cooling unit 400 through the tertiary liquid return pipe 604, and then through the secondary liquid return pipe 602 and the primary liquid return pipe 601. This cycle reduces the temperature in the battery system 200, so that the battery cell temperature operates within an appropriate temperature range.

[0042] By arranging two liquid cooling units 400 on one side of the container 100, the device structure is more compact. The two liquid cooling units 400 are placed on one side of the container 100, and the liquid cooling pipes are arranged relatively long, adopting a top-in and bottom-out method, which makes the flow more uniform. In addition, each liquid cooling unit 400 corresponds to a set of piping systems 600, which can effectively cool the battery system 200 and improve the heat exchange effect.

[0043] Based on the position of the secondary pipeline, the water inlet and outlet of the battery pack, and the boundary conditions of the battery pack, the liquid cooling tertiary pipeline adopts a formed tube to effectively avoid the bracket position of the liquid cooling plate;

[0044] The battery liquid cooling plate in the battery system 200 adopts an integrated liquid cooling lower shell, and the bracket of the battery liquid cooling plate is integrated on the surface of the battery liquid cooling plate. The bracket is installed on the left and right sides of the square tube of the container 100, which helps to prevent the pack from being dislocated due to vibration.

[0045] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A 40-foot energy storage container liquid cooling system, characterized in that: The container (100) comprises a battery system (200) distributed on both the front and rear sides of the interior of the container (100); two liquid cooling units (400) are provided on one end of the exterior of the container (100); a dehumidifying air conditioner (500) is provided on both the front and rear sides of the exterior of the container (100); and the air outlet of the dehumidifying air conditioner (500) is connected to the interior of the container (100); Two sets of piping systems (600) are further provided in the container (100), each set of piping systems (600) comprising a first-level liquid outlet pipe (606), a first-level liquid return pipe (601), a second-level liquid outlet pipe (605), a second-level liquid return pipe (602), a third-level liquid outlet pipe (603), a third-level liquid return pipe (604), and a battery liquid cooling plate provided in the battery system (200). The two sets of piping systems (600) are respectively connected to the two liquid cooling units (400) to form a circulation loop.

2. A 40-foot energy storage container liquid cooling system according to claim 1, characterized in that: A partition board (300) is provided between the container (100) and the liquid cooling unit (400), and the interior of the partition board (300) is hollow and filled with heat insulation cotton.

3. The 40-foot energy storage container liquid cooling system according to claim 1, characterized in that: The first-level liquid outlet pipe (606) is arranged along the middle of the top of the inner wall of the container (100), and one end thereof passes through the partition board (300) and is connected to the liquid outlet port of the liquid cooling unit (400); the first-level liquid return pipe (601) is arranged based on the H-shaped steel at the middle of the bottom of the container (100), and one end thereof passes through the partition board (300) and is connected to the liquid return port of the liquid cooling unit (400); A plurality of equally spaced secondary liquid return pipes (602) are provided between the primary liquid outlet pipe (606) and the primary liquid return pipe (601), and a group of secondary liquid outlet pipes (605) are provided on the left side of each secondary liquid return pipe (602). The secondary liquid return pipes (602), the secondary liquid outlet pipes (605), the primary liquid return pipe (601), the primary liquid outlet pipe (606), and the liquid cooling unit (400) form a circulation pipeline.

4. A 40-foot energy storage container liquid cooling system according to claim 3, characterized in that: A plurality of evenly distributed tertiary liquid outlet pipes (603) are provided on the side of the secondary liquid return pipe (602), and a plurality of evenly distributed tertiary liquid return pipes (604) are provided on the side of the secondary liquid outlet pipe (605). The tertiary liquid outlet pipes (603) and the tertiary liquid return pipes (604) are respectively connected to the battery liquid cooling plate in the battery system (200).

5. A 40-foot energy storage container liquid cooling system according to claim 4, characterized in that: The inlet and outlet positions of the battery liquid cooling plate in the battery system (200) are left-in and right-out, and a group of secondary liquid outlet pipes (605) and secondary liquid return pipes (602) are respectively provided on both sides of the multiple battery packs in the battery system (200), and the tertiary liquid outlet pipes (603) and tertiary liquid return pipes (604) are respectively connected to the inlet and outlet positions on the battery liquid cooling plate in the battery system (200).

6. The 40-foot energy storage container liquid cooling system according to claim 1, characterized in that: The three-stage liquid outlet pipe (603) and the three-stage liquid return pipe (604) are both formed pipes.

7. The 40-foot energy storage container liquid cooling system according to claim 1, characterized in that: The battery liquid cooling plate in the battery system (200) adopts an integrated liquid cooling lower shell, and the bracket of the battery liquid cooling plate is integrated on the surface of the battery liquid cooling plate, wherein the bracket is installed on the left and right sides of the square tube of the container (100).

8. The 40-foot energy storage container liquid cooling system according to claim 1, characterized in that: The two groups of dehumidifying air conditioners (500) are respectively arranged at the left and right ends of the front and rear sides of the container (100).

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