Liquid cooling pipeline system and liquid cooling energy storage equipment

Abstract

The utility model provides a liquid cooling pipeline system and liquid cooling energy storage equipment. The liquid cooling pipeline system comprises a liquid outlet pipe set, a liquid inlet pipe set and an exhaust valve. The liquid outlet pipe set comprises a first main pipeline and a plurality of first branches, the first main pipeline comprises a first conduction section and a liquid outlet section connected with the top end of the first conduction section in the height direction, and the first branches are connected and conducted with the first conduction section. The liquid inlet pipe set comprises a second main pipeline and a plurality of second branches communicating with the second main pipeline, and one first branch and one second branch are connected to form a circulating pipe set. And in the same circulating pipe group, at least one part of the first branch is located above the second branch in the height direction. The exhaust valve is arranged at the top of the liquid outlet section in the height direction, and hot air taken away by the cooling liquid flowing in the pipe set can be exhausted through the exhaust valve. According to the liquid cooling pipeline system, internal air can be exhausted in the operation process, and the operation speed and heat dissipation efficiency of cooling liquid can be improved.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to a liquid cooling pipeline system and a liquid cooling energy storage device. Background Art

[0002] In the related art, the liquid-cooled energy storage system needs to rely on the circulation of coolant to balance the temperature inside the system. The heat dissipation components inside the liquid-cooled energy storage system are connected through pipes to form a cooling and heat dissipation system for the circulation of coolant.

[0003] However, during the operation of the energy storage system, the residual air in the various heat dissipation components and the coolant affects the running speed of the coolant and the heat dissipation efficiency of the liquid-cooled plug-in box. Utility Model Content

[0004] The present application provides a liquid cooling pipeline system and a liquid cooling energy storage device to solve related technical problems.

[0005] A first aspect of the present application provides a liquid cooling pipeline system, comprising:

[0006] The liquid outlet pipe group includes a first main line and a plurality of first branches; the first main line includes a first conducting section and a liquid outlet section connected to the top of the first conducting section in the height direction; the first branch is connected to and conducted with the first conducting section;

[0007] A liquid inlet pipe group, comprising a second main pipe and a plurality of second branches connected to the second main pipe; one of the first branches and one of the second branches are connected to form a circulation pipe group; in the same circulation pipe group, at least a portion of the first branches is located above the second branches in the height direction;

[0008] The exhaust valve is arranged at the top of the liquid outlet section in the height direction.

[0009] Optionally, the first conductive section includes at least one first connecting structure and a plurality of first sub-sections, and two adjacent first sub-sections and the first branch are connected to each other through the first connecting structure.

[0010] Optionally, the second main line includes a second conducting section, a liquid inlet section connected to the top end of the second conducting section in the height direction, and a liquid discharge section connected to the bottom end of the second conducting section in the height direction; the second branch line is connected and conducted to the second conducting section; and the liquid discharge section is provided with a liquid discharge valve.

[0011] Optionally, the second conductive section includes at least one second connecting structure and a plurality of second sub-sections, and two adjacent second sub-sections and the second branch are connected to each other through the second connecting structure.

[0012] Optionally, the drain valve is arranged at an end of the drain section away from the second conducting section.

[0013] Optionally, the first branch includes a first portion arranged in alignment with the second branch in the height direction, and the first portion is located above the second branch in the height direction.

[0014] Optionally, the first part is connected to the first conducting section; the first branch further includes a second part connected to an end of the first part away from the first conducting section.

[0015] Optionally, the first branch includes a third portion whose projection in the height direction is located outside the projection of the second branch in the height direction, the third portion is connected to the first conductive section, and the third portion is located above the second branch in the height direction.

[0016] Optionally, the first conducting section is arranged adjacent to the second conducting section.

[0017] According to the second aspect of the present application, a liquid-cooled energy storage device is provided, which includes a liquid-cooled plug-in box, a liquid cooling unit and any liquid cooling pipeline system described in the first aspect; the liquid inlet of the second main pipeline and the liquid outlet of the liquid outlet section are respectively connected to the liquid cooling unit, and the first branch and the second branch are respectively connected to the liquid-cooled plug-in box.

[0018] The technical solution provided by this application can at least achieve the following beneficial effects:

[0019] In the same circulation pipe group of the present application, at least a part of the first branch of the liquid outlet pipe group is located above the second branch of the liquid inlet pipe group, so that the coolant takes away the air in the circulation channel during the process of flowing from the second branch to the first branch, and the hot air can be gathered at the top of the liquid outlet section of the liquid outlet pipe group and discharged through the exhaust valve. The liquid cooling pipe system can discharge the internal air during operation, which helps to improve the operation speed and heat dissipation efficiency of the coolant.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of a liquid cooling pipeline system in an exemplary embodiment of the present application;

[0022] Figure 2 is a schematic diagram of the exploded structure of a liquid cooling pipeline system in an exemplary embodiment of the present application;

[0023] Figure 3It is a front view structural schematic diagram of a liquid cooling pipeline system in an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0024] Here, the technical solutions in the embodiments (or "implementations") of the present application will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0025] If there are terms involving directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0026] In the related art, the liquid-cooled energy storage system needs to rely on the circulation of coolant to balance the temperature inside the system. The heat dissipation components inside the liquid-cooled energy storage system are connected through pipes to form a cooling and heat dissipation system for the circulation of coolant. However, during the operation of the energy storage system, the residual air in each heat dissipation component and the coolant affects the running speed of the coolant and the heat dissipation efficiency.

[0027] The present application provides a liquid cooling pipeline system. Figure 1 is a three-dimensional structural schematic diagram of a liquid cooling pipeline system in an exemplary embodiment of the present application, Figure 2 is a schematic diagram of the exploded structure of a liquid cooling pipeline system in an exemplary embodiment of the present application, Figure 3 is a front view structural diagram of a liquid cooling pipeline system in an exemplary embodiment of the present application, such as Figure 1-Figure 3 As shown, Figure 1 , Figure 3The dashed arrow in the middle may represent the height direction. The liquid cooling pipe system 1 includes a liquid outlet pipe group 11, a liquid inlet pipe group 12 and an exhaust valve 13. The liquid outlet pipe group 11 includes a first main pipe 111 and a plurality of first branches 112. The first main pipe 111 includes a first conducting section 1111 and a liquid outlet section 1112 connected to the top of the first conducting section 1111 in the height direction. The first branch 112 is connected and conducted to the first conducting section 1111. The liquid inlet pipe group 12 includes a second main pipe 121 and a plurality of second branches 122 connected to the second main pipe 121. A first branch 112 and a second branch 122 are connected to form a circulation pipe group. In the same circulation pipe group, at least a portion of the first branch 112 is located along the second branch 122 in the height direction. Figure 1 , Figure 3 The dotted arrow in the middle points upward. The exhaust valve 13 is arranged at the top of the liquid outlet section 1112 in the height direction.

[0028] Since at least a portion of the first branch 112 of the liquid outlet pipe group 11 in the same circulation pipe group is located above the second branch 122 of the liquid inlet pipe group 12, the coolant takes away the air in the circulation channel during the process of flowing from the second branch 122 to the first branch 112, and the hot air can be gathered at the top of the liquid outlet section 1112 of the liquid outlet pipe group 11 and discharged through the exhaust valve 13. The liquid cooling pipe system 1 can discharge the internal air during operation, which helps to improve the operation speed and heat dissipation efficiency of the coolant.

[0029] In some embodiments, the first conductive section 1111 includes at least one first connecting structure and a plurality of first sub-sections 1111 a , and two adjacent first sub-sections 1111 a and the first branch 112 are connected to each other through the first connecting structure.

[0030] For example, the first conductive section 1111 includes at least one three-way shunt joint 14 and multiple first sub-sections 1111a, the three-way shunt joint 14 includes a first joint, a second joint and a third joint, two adjacent first sub-sections 1111a are connected to the first joint and the second joint respectively, and the first branch 112 is connected to the third joint. Multiple first sub-sections 1111a are connected through the three-way shunt joint 14 to form the first conductive section 1111, which is convenient for adjusting the length of the first conductive section 1111 so that the first conductive section 1111 is adapted to the installation space. The first branch 112 can be installed by directly connecting to one of the three-way shunt joints 14, which improves the convenience of setting the first branch 112.

[0031] For example, the three-way shunt connector 14 can be a T-shaped structure, and the first sub-section 1111a can form a vertical first conductive section 1111 by connecting the relative first connector and the second connector in the three-way shunt connector 14, and the first branch 112 and the third connector form a structure extending toward one side perpendicular to the first conductive section 1111, so as to facilitate the connection with the liquid cooling box.

[0032] In some embodiments, the second main circuit 121 includes a second conductive section 1211, a liquid inlet section 1212 connected to the top of the second conductive section 1211 in the height direction, and a liquid discharge section 1213 connected to the bottom of the second conductive section 1211 in the height direction. The second branch 122 is connected and conductive to the second conductive section 1211, and the liquid discharge section 1213 is provided with a liquid discharge valve 15. The liquid inlet section 1212 and the liquid discharge section 1213 are provided for the second main circuit 121 to reduce the interference of the liquid inlet and liquid discharge structures on the structure and function of the second conductive section 1211.

[0033] A drain valve 15 is provided in the drain section 1213, so that the coolant in the liquid cooling pipeline system 1 can be discharged from the drain valve 15 when needed. Furthermore, the drain valve 15 can be provided at one end of the drain section 1213 away from the second conductive section 1211, so as to reduce the interference of the drain valve 15 with the drain section 1213 and other adjacent structures, and improve the convenience of draining.

[0034] The liquid inlet section 1212 of the liquid inlet pipe group 12 can be bent relative to the second conductive section 1211 to reduce the space occupied by the liquid inlet pipe group 12 in the height direction. Similarly, the liquid outlet section 1112 of the liquid outlet pipe group 11 can be bent relative to the first conductive section 1111 to reduce the space occupied by the liquid outlet pipe group 11 in the height direction. In some embodiments, the liquid outlet section 1112 can be located above the liquid inlet section 1212 in the height direction to further enhance the effect of gathering and discharging the hot air in the circulation channel at the top of the liquid outlet section 1112.

[0035] In the above embodiment, the second conductive section 1211 includes at least one second connecting structure and a plurality of second sub-sections 1211 a , and two adjacent second sub-sections 1211 a and the second branch 122 are connected to each other through the second connecting structure.

[0036] For example, the second conductive section 1211 may include at least one three-way shunt joint 14 and a plurality of second sub-sections 1211a, the three-way shunt joint 14 includes a fourth joint, a fifth joint and a sixth joint, two adjacent second sub-sections 1211a are connected to the fourth joint and the fifth joint respectively, and the second branch 122 is connected to the sixth joint. A plurality of second sub-sections 1211a are connected to form the second conductive section 1211 through the three-way shunt joint 14, so that the length of the second conductive section 1211 is adjusted so that the second conductive section 1211 is adapted to the installation space. The second branch 122 can be installed by directly connecting to one of the three-way shunt joints 14, which improves the convenience of setting the second branch 122.

[0037] For example, the three-way shunt connector 14 can be a T-shaped structure, and the second sub-section 1211a can form a vertical second conductive section 1211 by connecting two opposite fourth connectors and a fifth connector in the three-way shunt connector 14, and the second branch 122 and the sixth connector form a structure extending toward one side perpendicular to the second conductive section 1211, so as to facilitate the connection with the liquid cooling box.

[0038] In an embodiment of the present application, at least a portion of the first branch 112 in the same circulation pipe group is located above the second branch 122 in the height direction. Part of the first branch 112 may be located above the second branch 122, or the entire first branch 112 may be located above the second branch 122, so as to form a height difference that is conducive to the discharge of gas in the pipeline along with the flow of coolant.

[0039] For example, the first branch 112 may include a first portion 1121 aligned with the second branch 122 in the height direction, and the first portion 1121 is located above the second branch 122 in the height direction. That is, in the height direction, the first portion 1121 corresponds to the second branch 122, so that a height difference is formed between the second branch 122 and the first portion 1121 aligned with the second bracket in the height direction, which helps to achieve the discharge of gas along with the flow of coolant.

[0040] The first portion 1121 may be connected to the first conductive section 1111, and the first branch 112 further includes a second portion 1122 connected to an end of the first portion 1121 away from the first conductive section 1111. That is, the projection of the first branch 112 in the height direction further includes the second portion 1122 protruding from the second bracket, so as to extend the liquid outlet branch, increase the coolant flow path, and thereby increase the exhaust efficiency of the gas in the pipeline.

[0041] It should be noted that the second portion 1122 may be bent relative to the first portion 1121, or may be extended along the extension direction of the first portion 1121. The second portion 1122 may be higher than the second branch 122 in height, or lower than the second branch 122 or flush with the second branch 122.

[0042] For another example, the first branch 112 includes a third portion whose projection in the height direction is located outside the projection of the second branch 122 in the height direction, the third portion is connected to the first conductive section 1111, and the third portion is located above the second branch 122 in the height direction. A height difference is formed between the second branch 122 and the third portion outside the projection in the height direction of the second bracket, which helps to achieve the discharge of gas along with the flow of coolant.

[0043] Among them, the second branch 122 can extend along the first direction, the third part is connected to the first conductive section 1111 and extends along the first direction, and the projection of the third part in the height direction deviates from the second branch 122. On the basis of obtaining the height difference, it also helps to optimize the structural layout of the first branch 112 and the second branch 122 to avoid structural interference.

[0044] In some embodiments, the first conductive section 1111 and the second conductive section 1211 are disposed adjacent to each other to improve the structural compactness of the liquid cooling pipeline system 1 and reduce space occupation.

[0045] The present application further provides a liquid-cooled energy storage device, which includes a liquid-cooled plug-in box, a liquid cooling unit and the above-mentioned liquid cooling pipeline system 1, the liquid inlet of the second main pipeline 121 and the liquid outlet of the liquid outlet section 1112 are respectively connected to the liquid cooling unit, and the first branch 112 and the second branch 122 are respectively connected to the liquid cooling plug-in box.

[0046] Since at least a portion of the first branch 112 of the liquid outlet pipe group 11 in the same circulation pipe group is located above the second branch 122 of the liquid inlet pipe group 12, the coolant takes away the air in the circulation channel during the process of flowing from the second branch 122 to the first branch 112 through the liquid cooling plug-in box, and the hot air can be gathered at the top of the liquid outlet section 1112 of the liquid outlet pipe group 11 and discharged through the exhaust valve 13. The liquid cooling pipeline system 1 can discharge the internal air during operation, which helps to improve the running speed of the coolant and the heat dissipation efficiency of the liquid cooling plug-in box.

[0047] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without causing conflicts. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A liquid cooling pipeline system, characterized in that: include: The liquid outlet pipe group includes a first main line and a plurality of first branches; the first main line includes a first conducting section and a liquid outlet section connected to the top of the first conducting section in the height direction; the first branch is connected to and conducted with the first conducting section; A liquid inlet pipe group, comprising a second main pipe and a plurality of second branches connected to the second main pipe; one of the first branches and one of the second branches are connected to form a circulation pipe group; In the same circulation pipe group, at least a portion of the first branch is located above the second branch in the height direction; The exhaust valve is arranged at the top of the liquid outlet section in the height direction.

2. The liquid cooling pipeline system according to claim 1, characterized in that: The first conducting section includes at least one first connecting structure and a plurality of first sub-sections, and two adjacent first sub-sections and the first branch are connected to each other through the first connecting structure.

3. The liquid cooling pipeline system according to claim 1, characterized in that: The second main line includes a second conducting section, a liquid inlet section connected to the top end of the second conducting section in the height direction, and a liquid discharge section connected to the bottom end of the second conducting section in the height direction; the second branch line is connected and conducted to the second conducting section; the liquid discharge section is provided with a liquid discharge valve.

4. The liquid cooling pipeline system according to claim 3, characterized in that: The second conductive section includes at least one second connecting structure and a plurality of second sub-sections, and two adjacent second sub-sections and the second branch are connected to each other through the second connecting structure.

5. The liquid cooling pipeline system according to claim 3, characterized in that: The drain valve is disposed at one end of the drain section away from the second conducting section.

6. The liquid cooling pipeline system according to claim 1, characterized in that: The first branch includes a first portion that is arranged in alignment with the second branch in the height direction, and the first portion is located above the second branch in the height direction.

7. The liquid cooling pipeline system according to claim 6, characterized in that: The first part is connected to the first conductive section; the first branch further includes a second part connected to an end of the first part away from the first conductive section.

8. The liquid cooling pipeline system according to claim 1, characterized in that: The first branch includes a third portion whose projection in the height direction is located outside the projection of the second branch in the height direction, the third portion is connected to the first conductive section, and the third portion is located above the second branch in the height direction.

9. The liquid cooling pipeline system according to claim 3, characterized in that: The first conductive section is disposed adjacent to the second conductive section.

10. A liquid-cooled energy storage device, characterized in that: It comprises a liquid cooling plug-in box, a liquid cooling unit and a liquid cooling pipeline system as claimed in any one of claims 1 to 9; the liquid inlet of the second main pipeline and the liquid outlet of the liquid outlet section are respectively connected to the liquid cooling unit, and the first branch and the second branch are respectively connected to the liquid cooling plug-in box.

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