Energy storage system with liquid cooling pipeline structure

Abstract

The utility model provides a liquid cooling pipeline structure energy storage system which comprises a container, a plurality of mounting racks are arranged in the middle of the container, two rows of battery clusters are arranged between every two mounting racks front and back, a cooling bin is arranged at the left ends of the mounting racks in the container, a group of liquid cooling machines are mounted in the cooling bin, and cooling assemblies are connected to the group of liquid cooling machines. Each group of cooling assembly is arranged corresponding to each battery cluster and is used for cooling the battery clusters, and the right end of the mounting frame in the container is an electrical cabin; according to the utility model, the liquid cooling plate is arranged at the bottom of each battery pack, and the liquid paths between the liquid cooling plates and the liquid cooling machine are communicated by utilizing the water outlet structure and the water inlet structure, so that the cooling of each battery pack in each column of battery clusters is more balanced; and the liquid cooling assembly is more convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to a liquid cooling pipeline structure energy storage system, belonging to the technical field of energy storage systems. Background Art

[0002] Under the vision of carbon peak and carbon neutrality, the energy storage market has entered the fast lane of development, but the risk of safety accidents has also increased, especially the problem of battery thermal runaway has caused people's concerns. Batteries, like people, need to work in a comfortable temperature environment. Batteries that are in a high temperature environment for a long time will significantly shorten their life, degrade their performance, and even cause safety accidents. Therefore, precise control of the temperature of the energy storage system is an important part of ensuring the stable operation of the power station. The containerized energy storage system is equipped with multiple columns of battery clusters, and each column of battery clusters is composed of multiple groups of battery modules. In the prior art, the liquid cooling system has a better heat dissipation and cooling effect and is more commonly used. It is equipped with a liquid cooling plate on each layer of the battery, and the coolant flows through the liquid cooling plate in the piping system to remove the heat, thereby cooling and dissipating the heat.

[0003] The design and layout of the cooling pipe system in the prior art are relatively unreasonable, resulting in differences in the flow rate and temperature of the coolant flowing through each column of battery clusters, which in turn leads to differences in the degree of cooling of each column of battery clusters, and the cooling and heat dissipation effects are not balanced enough. At the same time, there are certain inconveniences in the disassembly and assembly of the cooling pipes in the prior art. Utility Model Content

[0004] Based on the above background, the purpose of the present invention is to provide a liquid-cooled pipeline structure energy storage system to solve the problems described in the background technology.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0006] A liquid-cooled pipeline structure energy storage system includes a container, wherein a plurality of mounting racks are provided in the middle of the container, and two rows of battery clusters are provided between each of the mounting racks. The left end of the mounting rack in the container is a cooling bin, in which a group of liquid coolers are installed, and each group of the liquid coolers is connected to a cooling assembly, each group of cooling assemblies is respectively provided corresponding to each battery cluster and cools the battery clusters. The right end of the mounting rack in the container is an electrical bin.

[0007] Preferably, the mounting frame comprises three groups of vertical frames equidistantly arranged vertically inside the container and L-shaped fixing plates equidistantly and evenly fixedly connected to the three groups of vertical frames, the battery cluster is arranged on the L-shaped fixing plate, and the same fixing rod is welded to the top of the three groups of vertical frames.

[0008] Preferably, the battery cluster comprises a plurality of battery packs, each of which is arranged on a respective L-shaped fixed plate, and each of the battery packs is connected in series via cables. A junction cabinet is provided at the bottom of each battery pack in the battery cluster, and the plurality of battery packs are connected in series with the junction cabinet via cables.

[0009] Preferably, the cooling assembly includes a water inlet structure and a water outlet structure, a liquid cooling plate is provided at the bottom of each battery pack, a liquid inlet and a liquid outlet are provided on the liquid cooling plate, one end of the water inlet structure is connected to the liquid inlet, and the other end of the water inlet structure is connected to the liquid cooler, one end of the water outlet structure is connected to the liquid outlet, and the other end of the water outlet structure is connected to the liquid cooler.

[0010] Preferably, the water inlet structure includes a water inlet joint, which is detachably connected to the water outlet of the liquid cooler; the water inlet joint is detachably connected to a first connecting pipe at one end away from the liquid cooler through a joint; the first connecting pipe is detachably connected to a first shunt pipe at one end away from the water inlet joint through a joint; the first shunt pipe is detachably connected to a second shunt pipe corresponding to the position of each column of the battery cluster through a first valve joint; the second shunt pipe is provided with a liquid inlet pipe at the position of the liquid cooling plate at the bottom of each battery pack, and the liquid inlet pipe is detachably connected to the liquid inlet on the liquid cooling plate.

[0011] Preferably, the water outlet structure includes a water outlet joint, which is detachably connected to the water inlet of the liquid cooler, and the water outlet joint is detachably connected to a second connecting pipe at one end away from the liquid cooler through a joint, and the second connecting pipe is detachably connected to a first manifold at one end away from the water outlet joint through a joint, and the first manifold is detachably connected to a second manifold via a second valve joint at a position corresponding to each column of the battery cluster, and the second manifold is provided with liquid outlet pipes corresponding to the liquid cooling plates at the bottom of each battery pack, and the liquid outlet pipes are detachably connected to the liquid outlet on the liquid cooling plate.

[0012] Preferably, a liquid cooling circulation structure is formed between the water inlet structure and the water outlet structure through a liquid cooling plate, which is used for circulating cooling of the entire cooling assembly.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The utility model discloses a liquid-cooling pipeline structure energy storage system, which utilizes a water inlet joint to detachably connect the water inlet structure with a liquid cooler, and utilizes a joint to detachably connect the first connecting pipe and the water inlet joint with the first diverter pipe respectively, so that this section of the liquid inlet pipeline is easy to disassemble and assemble, and utilizes a first valve joint to detachably connect the first diverter pipe with the second diverter pipe, so that this section of the liquid inlet pipeline is not only easy to disassemble and assemble, but also can control the on-off of the liquid path on the second diverter pipe respectively. In summary, by arranging a joint and a first valve joint in the water inlet structure, the water inlet structure is easy to disassemble and assemble, and the branch liquid paths on each second diverter pipe can be controlled to be on and off.

[0015] The utility model discloses a liquid cooling pipeline structure energy storage system, which utilizes a water outlet joint to detachably connect the water outlet structure with a liquid cooler, and utilizes a joint to detachably connect the second connecting pipe and the water outlet joint with the first manifold, respectively, so that this section of the liquid inlet pipeline is easy to disassemble and assemble, and utilizes a second valve joint to detachably connect the first manifold with the second manifold, so that this section of the liquid inlet pipeline is not only easy to disassemble and assemble, but also can control the on-off of the liquid path on the second manifold respectively. In summary, by arranging a joint and a second valve joint in the water outlet structure, the water outlet structure is easy to disassemble and assemble, and the branch liquid paths on each second manifold can be controlled to be on and off.

[0016] The utility model discloses a liquid cooling pipe structure energy storage system, which provides a liquid cooling plate at the bottom of each battery pack, and uses a water outlet structure and a water inlet structure to connect the liquid path between the liquid cooling plate and the liquid cooler, so that the temperature of each battery pack in each column of the battery cluster in the utility model is more balanced, and at the same time, the liquid cooling component is easier to disassemble and assemble through the detachably connected water outlet structure and water inlet structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the mounting frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the battery cluster structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the battery pack structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the cooling assembly structure of the utility model;

[0023] Figure 6 This utility model Figure 5 Enlarged view of part A in the middle;

[0024] Figure 7 This utility model Figure 5 Enlarged view of part B in the middle.

[0025] In the figure: 1. container; 2. mounting frame; 201. vertical frame; 202. L-shaped fixing plate; 203. fixing rod; 3. battery cluster; 301. battery pack; 302. cable; 303. junction cabinet; 4. cooling assembly; 401. water inlet structure; 4010. water inlet joint; 4011. first connecting pipe; 4012. first shunt pipe; 4013. first valve joint; 4014. second shunt pipe; 4015. liquid inlet pipe; 402. water outlet structure; 4020. water outlet joint; 4021. second connecting pipe; 4022. first junction pipe; 4023. second valve joint; 4024. second junction pipe; 4025. liquid outlet pipe; 403. liquid cooling plate; 404. liquid inlet; 405. liquid outlet; 5. cooling chamber; 6. liquid cooler; 7. electrical chamber. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of modification and / or change made to the utility model will fall within the protection scope of the utility model.

[0027] In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the field. The methods in the following embodiments, unless otherwise specified, are conventional methods in the field. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

[0028] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are described to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may also be implemented by those skilled in the art without these specific details.

[0029] like Figure 1-Figure 7As shown, a liquid-cooled pipeline structure energy storage system is characterized in that it includes a container 1, a plurality of mounting racks 2 are provided in the middle of the container 1, two rows of battery clusters 3 are provided between the mounting racks 2, the left end of the mounting racks 2 in the container 1 is a cooling bin 5, a group of liquid coolers 6 are installed in the cooling bin 5, a group of liquid coolers 6 are connected to cooling components 4, each group of cooling components 4 is respectively provided corresponding to each battery cluster 3, and cools the battery cluster 3, and the right end of the mounting racks 2 in the container 1 is an electrical bin 7. The cooling bin 5 is used to install the liquid coolers 6 of the energy storage system, and the electrical bin 7 is used to install the junction cabinet 303 of the energy storage system and electrical equipment such as the fire cabinet.

[0030] Specifically, the mounting frame 2 includes three groups of vertical frames 201 equidistantly arranged vertically inside the container 1 and L-shaped fixing plates 202 equidistantly and evenly fixedly connected to the three groups of vertical frames 201 . The battery cluster 3 is arranged on the L-shaped fixing plate 202 , and the same fixing rod 203 is welded to the top of the three groups of vertical frames 201 .

[0031] Specifically, the battery cluster 3 includes a plurality of battery packs 301, each of which is arranged on a respective L-shaped fixing plate 202, and each of the battery packs 301 is connected in series via a cable 302, and a junction cabinet 303 is provided at the bottom of each battery pack 301 in the battery cluster 3, and the plurality of battery packs 301 are connected in series with the junction cabinet 303 via the cable 302.

[0032] Specifically, the cooling assembly 4 includes a water inlet structure 401 and a water outlet structure 402. A liquid cooling plate 403 is provided at the bottom of each battery pack 301. A liquid inlet 404 and a liquid outlet 405 are provided on the liquid cooling plate 403. One end of the water inlet structure 401 is connected to the liquid inlet 404, and the other end of the water inlet structure 401 is connected to the liquid cooler 6. One end of the water outlet structure 402 is connected to the liquid outlet 405, and the other end of the water outlet structure 402 is connected to the liquid cooler 6.

[0033] Specifically, the water inlet structure 401 includes a water inlet joint 4010, which is detachably connected to the water outlet of the liquid cooler 6. The end of the water inlet joint 4010 away from the liquid cooler 6 is detachably connected to a first connecting pipe 4011 through a joint. The end of the first connecting pipe 4011 away from the water inlet joint 4010 is detachably connected to a first shunt pipe 4012 through a joint. The first shunt pipe 4012 is detachably connected to a second shunt pipe 4014 corresponding to the position of each column of the battery cluster 3 through a first valve joint 4013. The second shunt pipe 4014 is provided with a liquid inlet pipe 4015 at the position of the liquid cooling plate 403 at the bottom of each battery pack 301. The liquid inlet pipe 4015 is detachably connected to the liquid inlet 404 on the liquid cooling plate 403. By using the water inlet joint 4010 to detachably connect the water inlet structure 401 with the liquid cooler 6, and by using the joint to detachably connect the first connecting pipe 4011 and the water inlet joint 4010 and the first branch pipe 4012 respectively, this section of the liquid inlet pipe 4015 is easy to disassemble and assemble, and by using the first valve joint 4013 to detachably connect the first branch pipe 4012 and the second branch pipe 4014, this section of the liquid inlet pipe 4015 is not only easy to disassemble and assemble, but also can control the on-off of the liquid path on the second branch pipe 4014 respectively. In summary, by arranging the joint and the first valve joint 4013 in the water inlet structure 401, the water inlet structure 401 is easy to disassemble and assemble, and the branch liquid paths on each second branch pipe 4014 can be controlled to be on and off.

[0034] Specifically, the water outlet structure 402 includes a water outlet joint 4020, and the water outlet joint 4020 is detachably connected to the water inlet of the liquid cooler 6. The water outlet joint 4020 is detachably connected to a second connecting pipe 4021 at one end away from the liquid cooler 6 through a joint. The second connecting pipe 4021 is detachably connected to a first manifold 4022 at one end away from the water outlet joint 4020 through a joint. The first manifold 4022 is detachably connected to a second manifold 4024 at a position corresponding to each column of the battery cluster 3 through a second valve joint 4023. The second manifold 4024 is provided with a liquid outlet pipe 4025 corresponding to the liquid cooling plate 403 at the bottom of each battery pack 301, and the liquid outlet pipe 4025 is detachably connected to the liquid outlet 405 on the liquid cooling plate 403. By using the water outlet joint 4020 to detachably connect the water outlet structure 402 and the liquid cooler 6, and by using the joint to detachably connect the second connecting pipe 4021 and the water outlet joint 4020 and the first manifold 4022, this section of the liquid inlet pipe 4015 is easy to disassemble and assemble, and by using the second valve joint 4023 to detachably connect the first manifold 4022 and the second manifold 4024, this section of the liquid inlet pipe 4015 is not only easy to disassemble and assemble, but also can control the on-off of the liquid path on the second manifold 4024 respectively. In summary, by arranging the joint and the second valve joint 4023 in the water outlet structure 402, the water outlet structure 402 is easy to disassemble and assemble, and the branch liquid paths on each second manifold 4024 can be controlled to be on and off.

[0035] Specifically, a liquid cooling circulation structure is formed between the water inlet structure 401 and the water outlet structure 402 through the liquid cooling plate 403 , which is used for circulating cooling of the entire cooling assembly 4 .

[0036] The working principle of the liquid cooling pipeline structure energy storage system of the utility model is:

[0037] The coolant flows out from the liquid cooler 6, passes through the water inlet joint 4010, flows through the first connecting pipe 4011, the first shunt pipe 4012, the first valve joint 4013 and the second shunt pipe 4014, and finally flows from the liquid inlet pipe 4015 through the liquid inlet 404 on the liquid cooling plate 403 into the inside of the liquid cooling plate 403 to cool the battery pack 301. Thereafter, the coolant carries high temperature and flows out from the liquid outlet 405 on the liquid cooling plate 403, flows through the liquid outlet pipe 4025, the second manifold 4024, the second valve joint 4023, the first manifold 4022, the second connecting pipe 4021 and the water outlet joint 4020. At this point, the coolant carrying high temperature converges to the liquid cooler 6 to complete a cooling cycle, thereby achieving cooling of the battery pack 301.

[0038] When the cooling component 4 needs to be disassembled and assembled, it is only necessary to disassemble and assemble the corresponding first manifold 4022, the second manifold 4024, the second connecting pipe 4021, the water outlet joint 4020 and the liquid outlet pipe 4025 to complete the disassembly and assembly of the water outlet structure 402, and to disassemble and assemble the corresponding water inlet joint 4010, the first connecting pipe 4011, the first diversion pipe 4012, the first valve joint 4013, the second diversion pipe 4014 and the liquid inlet pipe 4015 to complete the disassembly and assembly of the water inlet structure 401, so that the disassembly and assembly of the practical cooling component 4 is faster and more convenient.

[0039] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A liquid-cooled pipeline structure energy storage system, characterized in that: The invention comprises a container (1), wherein a plurality of mounting racks (2) are arranged at a middle position in the container (1), and two rows of battery clusters (3) are arranged between each of the mounting racks (2). The left end of the mounting racks (2) in the container (1) is a cooling bin (5), and a group of liquid coolers (6) are installed in the cooling bin (5). Each group of the liquid coolers (6) is connected to a cooling assembly (4), and each group of cooling assemblies (4) is arranged corresponding to each battery cluster (3) and cools down the battery cluster (3). The right end of the mounting racks (2) in the container (1) is an electrical bin (7).

2. A liquid-cooled pipeline structure energy storage system according to claim 1, characterized in that: The mounting frame (2) comprises three groups of vertical frames (201) equidistantly arranged vertically inside the container (1) and L-shaped fixing plates (202) equidistantly and evenly fixedly connected to the three groups of vertical frames (201); the battery cluster (3) is arranged on the L-shaped fixing plate (202); and the tops of the three groups of vertical frames (201) are welded with a common fixing rod (203).

3. A liquid-cooled pipeline structure energy storage system according to claim 2, characterized in that: The battery cluster (3) comprises a plurality of battery packs (301), each of the battery packs (301) being arranged on a respective L-shaped fixing plate (202), each of the battery packs (301) being connected in series via a cable (302), a combiner cabinet (303) being arranged at the bottom of each of the battery packs (301) in the battery cluster (3), and the plurality of battery packs (301) being connected in series with the combiner cabinet (303) via the cable (302).

4. A liquid-cooled pipeline structure energy storage system according to claim 3, characterized in that: The cooling assembly (4) comprises a water inlet structure (401) and a water outlet structure (402); a liquid cooling plate (403) is provided at the bottom of each battery pack (301); a liquid inlet (404) and a liquid outlet (405) are provided on the liquid cooling plate (403); one end of the water inlet structure (401) is connected to the liquid inlet (404); the other end of the water inlet structure (401) is connected to the liquid cooling machine (6); one end of the water outlet structure (402) is connected to the liquid outlet (405); the other end of the water outlet structure (402) is connected to the liquid cooling machine (6).

5. A liquid-cooled pipeline structure energy storage system according to claim 4, characterized in that: The water inlet structure (401) comprises a water inlet joint (4010), the water inlet joint (4010) is detachably connected to the water outlet of the liquid cooler (6), the end of the water inlet joint (4010) away from the liquid cooler (6) is detachably connected to a first connecting pipe (4011) through a joint, the end of the first connecting pipe (4011) away from the water inlet joint (4010) is detachably connected to a first shunt pipe (4012) through a joint, the first shunt pipe (4012) is detachably connected to a second shunt pipe (4014) at a position corresponding to each column of the battery cluster (3) through a first valve joint (4013), the second shunt pipe (4014) is provided with a liquid inlet pipe (4015) at a position corresponding to the liquid cooling plate (403) at the bottom of each battery pack (301), and the liquid inlet pipe (4015) is detachably connected to a liquid inlet (404) on the liquid cooling plate (403).

6. A liquid-cooled pipeline structure energy storage system according to claim 5, characterized in that: The water outlet structure (402) comprises a water outlet joint (4020), the water outlet joint (4020) is detachably connected to the water inlet of the liquid cooler (6), the end of the water outlet joint (4020) away from the liquid cooler (6) is detachably connected to a second connecting pipe (4021) through a joint, the end of the second connecting pipe (4021) away from the water outlet joint (4020) is detachably connected to a first manifold (4022) through a joint, the first manifold (4022) is detachably connected to a second manifold (4024) corresponding to the position of each column of the battery cluster (3) through a second valve joint (4023), the second manifold (4024) is provided with a liquid outlet pipe (4025) corresponding to the liquid cooling plate (403) at the bottom of each battery pack (301), and the liquid outlet pipe (4025) is detachably connected to the liquid outlet (405) on the liquid cooling plate (403).

7. A liquid-cooled pipeline structure energy storage system according to claim 6, characterized in that: A liquid cooling circulation structure is formed between the water inlet structure (401) and the water outlet structure (402) via a liquid cooling plate (403), and is used for circulating cooling of the entire cooling assembly (4).

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