Battery energy storage container liquid cooling pipeline

Abstract

The utility model discloses a liquid cooling pipeline of a battery energy storage container, which comprises at least one first-stage pipeline, one end of the first-stage pipeline is provided with a second-stage pipeline, one side of the second-stage pipeline is provided with at least one third-stage pipeline, the second-stage pipeline is provided with a plurality of adjusting devices, the third-stage pipeline is provided with a plurality of liquid cooling joints, and the adjusting devices are connected with the liquid cooling joints. The plurality of liquid cooling structures and the plurality of adjusting devices are connected through liquid cooling pipes; through control of the plurality of adjusting devices and the plurality of liquid cooling joints, the flow resistance of the cooling liquid at different positions in the battery box can be controlled, the flow resistance difference between the battery box at the near end of the liquid cooling unit and the battery box at the far end of the liquid cooling unit can be reduced, and the flows flowing into the battery boxes at different positions are not different, so that the problem of temperature difference is avoided, and thermal runaway is not easily caused.

Description

Technical Field

[0001] The utility model relates to the field of lithium - ion batteries, in particular to a liquid - cooling pipeline for a battery energy - storage container. Background Technique

[0002] The cooling system of an electrochemical liquid - cooling energy - storage container mainly consists of a liquid - cooling unit, first - level, second - level, and third - level liquid - cooling pipes, and a liquid - cooling plate at the bottom of the liquid - cooling battery box. The antifreeze circulates in the liquid - cooling unit, pipelines, and liquid - cooling plates to achieve the effect of heat exchange.

[0003] In the existing battery box body for heat dissipation, the farther the battery box is from the liquid - cooling unit, the greater the flow resistance of the flow channel. The flow - resistance difference between the battery boxes near the liquid - cooling unit and those far from it is relatively large, resulting in differences in the flow rates flowing into the battery boxes at different positions, thus leading to temperature - difference problems and easily causing thermal runaway.

[0004] Therefore, we propose a liquid - cooling pipeline for a battery energy - storage container to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defects existing in the prior art, and a liquid - cooling pipeline for a battery energy - storage container is proposed.

[0006] In order to achieve the above - mentioned purpose, the utility model adopts the following technical solutions:

[0007] A liquid - cooling pipeline for a battery energy - storage container includes at least one first - level pipeline. One end of the first - level pipeline is provided with a second - level pipeline, and at least one third - level pipeline is provided on one side of the second - level pipeline. It is characterized in that a plurality of adjusting devices are provided on the second - level pipeline, a plurality of liquid - cooling joints are provided on the third - level pipeline, and the plurality of liquid - cooling structures and the plurality of adjusting devices are all connected through liquid - cooling pipes.

[0008] Further preferably, two valves are provided at the bottom end of each third - level pipeline, and the valves are all connected to each other.

[0009] Further preferably, flange interfaces are provided at both ends of the first - level pipeline, and the first - level pipelines are all connected through the flange interfaces.

[0010] Further preferably, a plurality of two - way stop valves are provided on the second - level pipeline, and the two - way stop valves are all connected to the adjusting devices.

[0011] Further preferably, the plurality of liquid - cooling structures, the plurality of adjusting devices, and the plurality of liquid - cooling pipes are all located on the same horizontal plane.

[0012] Further preferably, a water inlet pipe and a water outlet pipe are respectively provided at both ends of the liquid - cooling pipe.

[0013] Further preferably, the distances between the plurality of adjusting devices are consistent, and the distances between the plurality of liquid cooling joints are consistent.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By controlling through a plurality of adjusting devices and a plurality of liquid cooling joints, the flow resistance of the coolant at different positions in the battery box can be controlled. The flow resistance difference between the battery box near the liquid cooling unit and the battery box far away will become smaller, and there will be no difference in the flow rate flowing into the battery boxes at different positions, so there will be no problem of temperature difference and it is not easy to cause thermal runaway. Description of the Drawings

[0016] Figure 1 It is an overall structure diagram of a liquid cooling pipeline of a battery energy storage container proposed by the present utility model.

[0017] In the figure: 1, primary pipeline; 2, secondary pipeline; 3, tertiary pipeline; 4, adjusting device; 5, liquid cooling joint; 6, valve; 7, flange interface; 8, two-way stop valve; 9, water inlet pipe; 10, water outlet pipe; 11, liquid cooling pipe. Specific Embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] Refer to Figure 1 , a liquid cooling pipeline of a battery energy storage container includes at least one primary pipeline 1. One end of the primary pipeline 1 is provided with a secondary pipeline 2, and at least one tertiary pipeline 3 is provided on one side of the secondary pipeline 2. The primary pipeline 1, the secondary pipeline 2, and the tertiary pipeline 3 are connected to form the main framework of the cooling circulation system. Different numbers of pipelines can be installed according to the size of the battery box body, and it can be applicable to battery box bodies of different sizes.

[0020] A plurality of adjusting devices 4 are provided on the secondary pipeline 2, and a plurality of liquid cooling joints 5 are provided on the tertiary pipeline 3. The plurality of liquid cooling structures and the plurality of adjusting devices 4 are all connected through the liquid cooling pipe 11. Through the liquid cooling pipe 11, the liquid cooling joint 5 and the adjusting device 4 can be connected, and the flow resistance in the pipeline can be adjusted. By controlling through the plurality of adjusting devices 4 and the plurality of liquid cooling joints 5, the flow resistance of the coolant at different positions in the battery box can be controlled. The flow resistance difference between the battery box near the liquid cooling unit and the battery box far away will become smaller, and there will be no difference in the flow rate flowing into the battery boxes at different positions, so there will be no problem of temperature difference and it is not easy to cause thermal runaway.

[0021] Two valves 6 are provided at the bottom end of each of the three - stage pipelines 3. The valves 6 are all connected to each other, so that the bottom ends of the three - stage pipelines 3 can be connected through the valves 6, cooling circulation can be realized. At the same time, different numbers of three - stage pipelines 3 can be installed according to the size of the battery box and connected through the valves 6, which is convenient for installation and disassembly.

[0022] Further preferably, flange interfaces 7 are provided at both ends of the first - stage pipeline 1. The first - stage pipelines 1 are all connected to each other through the flange interfaces 7, so that the bottom ends of the first - stage pipelines 1 can be connected through the flange interfaces 7, cooling circulation can be realized. At the same time, different numbers of first - stage pipelines 1 can be installed according to the size of the battery box and connected through the flange interfaces 7, which is convenient for installation and disassembly.

[0023] A plurality of two - way stop valves 8 are provided on the second - stage pipeline 2. The two - way stop valves 8 are all connected to the regulating device 4. By adjusting the opening degree of the two - way stop valves 8, the flow rate can be controlled, and the cut - off and flow - through of the fluid can be realized. Cooperating with the regulating device 4, the flow velocity and flow resistance in the pipeline can be effectively controlled.

[0024] A plurality of liquid - cooling structures, a plurality of regulating devices 4 and a plurality of liquid - cooling pipes 11 are all located on the same horizontal plane, so that the pressure in the pipeline will not increase due to the liquid level difference, and the inside of the pipeline is not easily damaged. At the same time, the flow resistance can be effectively controlled.

[0025] An inlet pipe 9 and an outlet pipe 10 are respectively provided at both ends of the liquid - cooling pipe 11. Coolant can be injected into the pipeline through the inlet pipe 9, and the coolant can be circulated to other pipelines through the outlet pipe 10, and the function of the circulating flow of the coolant can be realized.

[0026] The distances between a plurality of regulating devices 4 are the same, and the distances between a plurality of liquid - cooling joints are the same, so that the flow velocity in the pipeline can be made more uniform, and the control effect of the flow resistance in the pipeline can be effectively improved.

Claims

1. A liquid cooling pipeline for a battery energy storage container, comprising at least one primary pipeline, a secondary pipeline is provided at one end of the primary pipeline, and at least one tertiary pipeline is provided at one side of the secondary pipeline, characterized in that: The secondary pipeline is provided with multiple regulating devices, the tertiary pipeline is provided with multiple liquid cooling joints, the multiple liquid cooling joints and the multiple regulating devices are connected through liquid cooling pipes, two valves are provided at the bottom of the tertiary pipeline, the valves are connected to each other, flange interfaces are provided at both ends of the primary pipeline, and the primary pipelines are connected to each other through flange interfaces.

2. A battery energy storage container liquid cooling pipeline according to claim 1, characterized in that: A plurality of two-way stop valves are arranged on the secondary pipeline, and the two-way stop valves are all connected to the regulating device.

3. The battery energy storage container liquid cooling pipeline according to claim 1, characterized in that: The plurality of liquid cooling joints, the plurality of regulating devices and the plurality of liquid cooling pipes are all located on the same horizontal plane.

4. The battery energy storage container liquid cooling pipeline according to claim 1, characterized in that: The two ends of the liquid cooling pipe are respectively provided with a water inlet pipe and a water outlet pipe.

5. The battery energy storage container liquid cooling pipeline according to claim 1, characterized in that: The spacings between the multiple adjusting devices are consistent, and the spacings between the multiple liquid cooling joints are consistent.

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