Liquid circulation cooling system

Abstract

The invention relates to a liquid circulation cooling system which comprises a cooling liquid supply device, a cooling liquid circulation device and a cooling liquid circulation device. The main pipeline comprises a liquid supply header pipe and a liquid return header pipe; a liquid supply branch pipe of the overflow cabinet is communicated with the liquid supply port through a liquid supply header pipe, and a liquid return branch pipe of the overflow cabinet is communicated with the liquid return port through a liquid return header pipe; the liquid storage tank is arranged on the liquid return header pipe and is configured to store the cooling liquid flowing back by the overflow cabinet depending on gravity, and the top of the liquid storage tank is provided with a ventilation structure communicated with the atmospheric environment; the pump set is configured to provide circulating power for the cooling liquid; the heat exchanger is configured to conduct heat exchange on the cooling liquid, and the ventilation device is arranged on at least one liquid supply branch pipe or at the first preset height of the liquid supply main pipe so as to build on-off ventilation of the corresponding pipeline; the liquid supply branch pipe comprises a pipeline lifting structure with a first end and a second end, the first end is connected with the cabinet liquid supply port, and the second end is connected with the connector of the liquid supply header pipe. The system can reduce the design volume of the liquid storage tank.

Description

Technical Field

[0001] This application relates to the field of liquid cooling technology, and more specifically, to a liquid circulation cooling system. Background Technology

[0002] Overflow immersion cabinets, as a highly efficient liquid cooling system, are widely used in battery, data center, and electronic equipment cooling applications due to their low pressure loss. However, when the system stops operating, the liquid in the supply lines gradually decreases, leading to negative pressure (i.e., pressure below atmospheric pressure) within the pipes, which in turn causes backflow. This backflow not only affects the normal operation of the system but can also cause equipment damage or liquid leakage. To overcome the backflow problem, existing technologies typically mitigate it by increasing the capacity of the liquid storage tank, but this method has limitations due to increased system cost and size. Summary of the Invention

[0003] The main objective of this application is to provide a liquid circulation cooling system, comprising: a coolant supply device, including a supply port and a return port; a main pipeline, including a main supply pipe and a main return pipe; at least one cluster of overflow cabinets, wherein the supply branch pipes of the overflow cabinets are connected to the supply port through the main supply pipe, and the return branch pipes of the overflow cabinets are connected to the return port through the main return pipe; a storage tank, disposed on the main return pipe, configured to store the coolant returning from the overflow cabinets by gravity, the top of the storage tank having a ventilated structure communicating with the atmospheric environment; a pump set, configured to provide circulation power for the coolant; a heat exchanger, configured to perform heat exchange on the coolant; and a venting device, disposed on at least one of the supply branch pipes or at a first preset height of the main supply pipe to construct a ventilable and disconnectable pipe for the corresponding pipeline; wherein the supply branch pipe includes a pipe elevation structure at a first end and a second end, the first end being connected to the supply port of the cabinet, and the second end being connected to the interface of the main supply pipe.

[0004] In one embodiment, the ventilating device includes: a connecting structure connected to the liquid supply branch pipe or the first preset height; and a control mechanism for controlling the on / off state of the connecting structure.

[0005] In one embodiment, the connecting structure is a connecting pipe, and the control mechanism is an electric ball valve.

[0006] In one embodiment, the end of the connecting pipe away from the liquid supply branch pipe or at the first preset height is connected to the atmospheric environment.

[0007] In one embodiment, the venting device further includes a filter screen disposed within the connecting pipe between the atmospheric environment and the electric ball valve to filter impurities from the atmospheric environment.

[0008] In one embodiment, one end of the connecting pipe away from the supply branch pipe or the first preset height is connected to at least one return branch pipe or the return main pipe at a second preset height.

[0009] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a blocking member adapted to the connecting hole and an intelligent robotic arm that controls the movement of the blocking member to open or close the connecting hole.

[0010] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a spring and a blocking member adapted to the connecting hole, one end of the spring is connected to the blocking member, and the end of the spring away from the blocking member is connected to the inner wall of the pipe opposite to the connecting hole; the spring extends and retracts along the axial direction of the connecting hole, driving the blocking member to close the connecting hole in its naturally extended state, and driving the blocking member away from the connecting hole and moving towards the inner wall of the pipe when subjected to a preset air pressure.

[0011] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a spring and a blocking member adapted to the connecting hole, one end of the spring is connected to the blocking member, and the end of the spring away from the blocking member is connected to a pressure-bearing member outside the pipe corresponding to the connecting hole; the pressure-bearing member is opposite to the connecting hole, and the pressure-bearing member is connected to the pipe corresponding to the connecting hole through a support member; the spring extends and retracts along the axial direction of the connecting hole, driving the blocking member to close the connecting hole in its naturally extended state, and driving the blocking member away from the connecting hole and away from the pressure-bearing member when subjected to a preset air pressure.

[0012] In one embodiment, the connecting hole is provided with an annular protrusion along its axial direction, the annular protrusion being in close contact with the top outer edge of the shielding member to prevent the shielding member from leaving the connecting hole and entering the outside of the pipe.

[0013] In one embodiment, the overflow cabinet is an overflow battery pack or an overflow data cabinet; and / or the liquid circulation cooling system further includes a control unit configured to control the venting device to activate venting when the pump group stops operating.

[0014] In one embodiment, when the pump unit stops operating and the venting device is activated, the pipeline elevation structure and the overflow cabinet form a liquid-filled communicating vessel.

[0015] In one embodiment, the pipeline elevation structure includes a first pipe section, a connecting pipe section, and a second pipe section connected in sequence. The first pipe section is connected to the liquid supply port of the cabinet, the connecting pipe section extends along the height direction or an inclined path along the height direction, and the second pipe section is connected to the interface of the main liquid supply pipe.

[0016] In one embodiment, when the venting device is located on the liquid supply branch pipe, the pipeline elevation structure includes a first pipe section, a connecting pipe section, and a second pipe section connected in sequence. The first pipe section is connected to the liquid supply port of the cabinet, the connecting pipe section extends along the height direction or an inclined path along the height direction, and the second pipe section is connected to the interface of the main liquid supply pipe. The elevation height of the connecting pipe section exceeds the corresponding liquid level of the cabinet, and the venting device is located on the connecting pipe section above the liquid level of the cabinet, or the venting device is located on the second pipe section.

[0017] In an alternative embodiment, the liquid circulation cooling system includes: a coolant supply device, including a supply port and a return port; a main pipeline, including a main supply pipe and a main return pipe; at least one cluster of open overflow cabinets, the supply branch pipes of the overflow cabinets being connected to the supply ports via the main supply pipe; a storage tank, disposed below each cluster of overflow cabinets, configured to collect the coolant returning from the overflow cabinets by gravity, the storage tank being connected to the return port via the main return pipe; a pump unit, configured to provide circulation power for the coolant; a heat exchanger, configured to perform heat exchange on the coolant; and a venting device, disposed on at least one of the supply branch pipes or at a first predetermined height of the main supply pipe to construct a ventable and disconnectable vent for the corresponding pipeline; wherein, the supply branch pipe includes a pipeline elevation structure at a first end and a second end, the first end being connected to the supply port of the cabinet, and the second end being connected to the interface of the main supply pipe.

[0018] In one embodiment, the ventilating device includes: a connecting structure connected to the liquid supply branch pipe or the first preset height; and a control mechanism for controlling the on / off state of the connecting structure.

[0019] In one embodiment, the connecting structure is a connecting pipe, and the control mechanism is an electric ball valve.

[0020] In one embodiment, the end of the connecting pipe away from the liquid supply branch pipe or at the first preset height is connected to the atmospheric environment.

[0021] In one embodiment, the venting device further includes a filter screen disposed within the connecting pipe between the atmospheric environment and the electric ball valve to filter impurities from the atmospheric environment.

[0022] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a blocking member adapted to the connecting hole and an intelligent robotic arm that controls the movement of the blocking member to open or close the connecting hole.

[0023] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a spring and a blocking member adapted to the connecting hole, one end of the spring is connected to the blocking member, and the end of the spring away from the blocking member is connected to the inner wall of the pipe opposite to the connecting hole; the spring extends and retracts along the axial direction of the connecting hole, driving the blocking member to close the connecting hole in its naturally extended state, and driving the blocking member away from the connecting hole and moving towards the inner wall of the pipe when subjected to a preset air pressure.

[0024] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a spring and a blocking member adapted to the connecting hole, one end of the spring is connected to the blocking member, and the end of the spring away from the blocking member is connected to a pressure-bearing member outside the pipe corresponding to the connecting hole; the pressure-bearing member is opposite to the connecting hole, and the pressure-bearing member is connected to the pipe corresponding to the connecting hole through a support member; the spring extends and retracts along the axial direction of the connecting hole, driving the blocking member to close the connecting hole in its naturally extended state, and driving the blocking member away from the connecting hole and away from the pressure-bearing member when subjected to a preset air pressure.

[0025] In one embodiment, the connecting hole is provided with an annular protrusion along its axial direction, the annular protrusion being in close contact with the top outer edge of the shielding member to prevent the shielding member from leaving the connecting hole and entering the outside of the pipe.

[0026] In one embodiment, the overflow cabinet is an overflow battery pack or an overflow data cabinet; and / or the liquid circulation cooling system further includes a control unit configured to control the venting device to activate venting when the pump group stops operating.

[0027] In one embodiment, when the pump unit stops operating and the venting device is activated, the pipeline elevation structure and the overflow cabinet form a liquid-filled communicating vessel.

[0028] In one embodiment, the pipeline elevation structure includes a first pipe section, a connecting pipe section, and a second pipe section connected in sequence. The first pipe section is connected to the liquid supply port of the cabinet, the connecting pipe section extends along the height direction or an inclined path along the height direction, and the second pipe section is connected to the interface of the main liquid supply pipe.

[0029] In one embodiment, when the venting device is located on the liquid supply branch pipe, the pipeline elevation structure includes a first pipe section, a connecting pipe section, and a second pipe section connected in sequence. The first pipe section is connected to the liquid supply port of the cabinet, the connecting pipe section extends along the height direction or an inclined path along the height direction, and the second pipe section is connected to the interface of the main liquid supply pipe. The elevation height of the connecting pipe section exceeds the corresponding liquid level of the cabinet, and the venting device is located on the connecting pipe section above the liquid level of the cabinet, or the venting device is located on the second pipe section.

[0030] According to the technical solution of this application, a liquid circulation cooling system includes a coolant supply device, including a supply port and a return port; a main pipeline, including a main supply pipe and a main return pipe; at least one cluster of overflow cabinets, wherein the supply branch pipes of the overflow cabinets are connected to the supply port through the main supply pipe, and the return branch pipes of the overflow cabinets are connected to the return port through the main return pipe; a storage tank, disposed on the main return pipe, configured to store the coolant returning to the overflow cabinets by gravity, the top of the storage tank having a ventilated structure communicating with the atmospheric environment; a pump group, configured to provide circulation power for the coolant; a heat exchanger, configured to perform heat exchange on the coolant; and a venting device, disposed on at least one of the supply branch pipes or at a first preset height of the main supply pipe to construct a ventilable function for the corresponding pipeline; wherein, the supply branch pipe includes a pipeline elevation structure at a first end and a second end, the first end being connected to the supply port of the cabinet, and the second end being connected to the interface of the main supply pipe. This embodiment incorporates a venting device that activates when the overflow cabinet is not in operation. This balances the air pressure in the main supply pipe, reduces the height of the backflow liquid column in the supply branch pipes, and prevents excessive liquid or backflow into the storage tank. This system design helps to reduce the size of the storage tank. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0032] Figure 1 This is a structural diagram of a liquid circulation cooling system provided in an embodiment of this application.

[0033] Figure 2 This is a structural diagram of a liquid circulation cooling system provided in an embodiment of this application.

[0034] Figure 3 This is a structural diagram of a liquid circulation cooling system provided in an embodiment of this application.

[0035] Figure 4 This is a schematic diagram of a liquid storage tank provided in one embodiment of this application.

[0036] Figure 5 This is a schematic diagram of a breathable structure provided in an embodiment of this application.

[0037] Figure 6 This is a schematic diagram of a pipeline elevation structure provided in one embodiment of this application.

[0038] Figure 7 This is a diagram showing the arrangement of a breathable device provided in an embodiment of this application.

[0039] Figure 8 This is a diagram showing the setup of a filter screen provided in one embodiment of this application.

[0040] Figure 9 This is a structural diagram of a liquid circulation cooling system provided in an embodiment of this application.

[0041] Figure 10 This is a structural diagram of a liquid circulation cooling system provided in an embodiment of this application.

[0042] Figure 11 This is a schematic diagram of a breathable device provided in an embodiment of this application.

[0043] Figure 12 This is a schematic diagram of a breathable device provided in an embodiment of this application.

[0044] Figure 13 This is a schematic diagram of a breathable device provided in an embodiment of this application.

[0045] Figure 14 This is a structural diagram of a liquid circulation cooling system provided in an embodiment of this application.

[0046] Explanation of reference numerals in the attached figures:

[0047] Coolant supply device 100, supply port 101, return port 102;

[0048] Main pipeline 200, main supply pipeline 201, main return pipeline 202, first pipeline 2011, second pipeline 2012, third pipeline 2021, fourth pipeline 2022;

[0049] Overflow cabinet 300, liquid supply branch pipe 301, liquid return branch pipe 302;

[0050] Liquid storage tank 400, top cover 401, tank body 402, vent gap 403;

[0051] Pump set 500;

[0052] Heat exchanger 600;

[0053] Ventilation device 700, connecting pipe 701, electric ball valve 702, filter screen 703, filter screen mounting plate 704, clamp 705; connecting hole 706, shielding part 707, intelligent robotic arm 708, spring part 709, pressure bearing part 710, support part 711, annular protrusion 712.

[0054] Mounting ring 7080, lifting cylinder 7081, bending rod 7082, clamping part 7083;

[0055] The pipeline elevation structure is 800, the first pipe section is 801, the connecting pipe section is 802, and the second pipe section is 803. Detailed Implementation

[0056] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0057] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0058] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0059] Example 1:

[0060] like Figures 1 to 13 As shown, this application provides a liquid circulation cooling system, comprising: a coolant supply device 100, including a supply port 101 and a return port 102; a main pipeline 200, including a main supply pipe 201 and a main return pipe 202; at least one cluster of overflow cabinets 300, wherein the supply branch pipes 301 of the overflow cabinets 300 are connected to the supply port 101 through the main supply pipe 201, and the return branch pipes 302 of the overflow cabinets 300 are connected to the return port 102 through the main return pipe 202; and a liquid storage tank. A tank 400, located on the return main pipe 202, is configured to store the coolant that flows back from the overflow cabinet 300 by gravity. The top of the tank 400 has a ventilated structure that communicates with the atmospheric environment. A pump set 500 is configured to provide circulation power for the coolant. A heat exchanger 600 is configured to exchange heat with the coolant. A venting device 700 is located on at least one supply branch pipe 301 or at a first preset height of the supply main pipe 201 to create a ventilable connection for the corresponding pipe.

[0061] This embodiment incorporates a venting device that activates when the overflow cabinet is not in operation. This balances the air pressure in the main supply pipe, reduces the height of the backflow liquid column in the supply branch pipes, and prevents excessive liquid from flowing back into the storage tank. This system design helps to reduce the size of the storage tank.

[0062] In some embodiments, the main liquid supply pipe 201 includes a first pipe 2011 and a second pipe 2012, with the first pipe 2011 extending along the height direction. A venting device 700 is disposed at a first predetermined height of the first pipe 2011. For example, the venting device 700 may be disposed as follows: Figure 1 The top of the main liquid supply pipe 201 shown can also be set at, for example, Figure 2 The liquid supply main 201 shown is located in the middle. Furthermore, the venting device 700 can also be installed in, for example... Figure 3 The liquid supply branch pipe 301 is shown. It should be noted that those skilled in the art can place the venting device 700 in a suitable position according to the actual pipeline design.

[0063] In some embodiments, such as Figure 4 and Figure 5 As shown, the liquid storage tank 400 includes a top cover 401 and a tank body 402. The top cover 401 and the tank body 402 are connected by a support block, thereby forming an air-permeable gap 403.

[0064] In other embodiments, the top of the liquid storage tank 400 is provided with a vent hole.

[0065] In some embodiments, the pump unit 500 and the heat exchanger 600 are installed on the main pipeline 200, so that the coolant device 100 can exchange heat with the heat exchanger 600 through a cooling medium (refrigerant or cooling water) to regulate the temperature of the coolant in the pipeline.

[0066] In this embodiment, the liquid supply branch pipe 301 also includes a pipe elevation structure 800. The pipe elevation structure 800 is used to ensure that when the cabinet is shut down, liquid will not flow excessively or at all back from the cabinet to the main liquid supply pipe.

[0067] It is worth noting that when the pump unit stops running and the venting device is activated, the elevated pipeline structure and the overflow cabinet will form a liquid-filled communicating vessel. The elevated pipeline structure is similar to a teapot spout, except that its "spout" is connected to the main liquid supply pipe.

[0068] Furthermore, the pipeline elevation structure 800 includes a first pipe section 801, a connecting pipe section 802, and a second pipe section 803 connected in sequence. The first pipe section 801 is connected to the cabinet liquid supply port, the second pipe section 803 is connected to the interface of the liquid supply main pipe 201, and the connecting pipe section 802 extends along the height direction or along an inclined path along the height direction.

[0069] In a preferred embodiment, the overall height of the connecting pipe section 802 can exceed the corresponding cabinet liquid level height during pipe layout. Other embodiments do not limit the specific elevation height.

[0070] Specifically, such as Figure 6 and Figure 7 As shown, the first pipe section 801 is arranged horizontally, the connecting pipe section 802 is arranged vertically, and the second pipe section 803 is arranged horizontally.

[0071] For example, the liquid level in an overflow cabinet is 300mm. Without a venting device, using the bottom of the cabinet as a reference surface, the backflowing liquid may be drawn up to 700-900mm due to negative pressure. With a venting device, the liquid rise is limited to approximately 300mm, level with the liquid level, avoiding the risk of overflow. In practical applications, the interface height between the supply branch pipe and the main supply pipe is greater than the corresponding cabinet liquid level, allowing for an appropriate design margin (e.g., 50-100mm) to ensure system reliability.

[0072] In some embodiments, the venting device is disposed on the liquid supply branch pipe. In this design, the venting device 700 is disposed on the upper part of the connecting pipe section 802 (above the corresponding cabinet liquid level), or it can be disposed on the second pipe section 803.

[0073] Overview of the 700 ventilation device:

[0074] The connecting structure is connected to the liquid supply branch pipe 301 or at the first preset height.

[0075] Control mechanism, which controls the on / off state of the connected structure.

[0076] The ventilation device 700 includes at least one of the following embodiments:

[0077] Implementation method 1:

[0078] like Figure 7 and Figure 8 As shown, the connecting structure is a connecting pipe 701, and the control mechanism is an electric ball valve 702. One end of the connecting pipe 701, away from the liquid supply branch pipe 301 or at a first preset height, is connected to the atmospheric environment.

[0079] In some embodiments, such as Figure 8 As shown, the ventilation device 700 also includes a filter screen 703; the filter screen 703 is disposed in the connecting pipe 701 between the atmospheric environment and the electric ball valve 702 to filter impurities from the atmospheric environment.

[0080] Specifically, the end of the connecting pipe 701 that connects to the atmospheric environment is fitted with the outer edge of the filter screen 703. The filter screen mounting plate 704 covers the side of the filter screen 703 away from the connecting pipe 701 and is fixed by the clamp 705, thereby installing the filter screen 703 on the connecting pipe 701.

[0081] Implementation Method 2:

[0082] like Figure 9 and Figure 10 As shown, the connecting structure is a connecting pipe 701, and the control mechanism is an electric ball valve 702. One end of the connecting pipe 701, away from the supply branch pipe 301 or at the first preset height, is connected to at least one return branch pipe 302 or the return main pipe 202 at the second preset height.

[0083] In some embodiments, such as Figure 10 As shown, the return main pipe 202 includes a third pipe 2021 and a fourth pipe 2022, with the third pipe 2021 extending along the height direction. A connecting pipe 701 is connected to the third pipe 2021 at a second predetermined height. In this embodiment, it is positioned at the top of the third pipe 2021.

[0084] Implementation Method 3:

[0085] like Figure 11 As shown, the connecting structure is a connecting hole 706; the control mechanism includes a blocking member 707 adapted to the connecting hole 706 and an intelligent robotic arm 708 that controls the movement of the blocking member 707 to open or close the connecting hole 706.

[0086] As an optional implementation, the intelligent robotic arm 708 includes a lifting cylinder 7081, a bending rod 7082, and a control unit. The bending rod 7082 is "п"-shaped, with one end connected to a blocking member 707 and the other end connected to the lifting cylinder 7081. The control unit is connected to the lifting cylinder 7081. The control unit receives signals and controls the lifting cylinder 7081 to move the bending rod 7082 and its connected blocking member 707 along a preset direction (longitudinal or transverse), thereby opening and closing the connecting hole 706.

[0087] In some embodiments, a hole is made in the corresponding pipe to form a connecting hole 706.

[0088] In other embodiments, an opening is made in the corresponding pipe, and an annular protrusion 712 is formed around the opening to obtain a connecting hole 706.

[0089] Furthermore, the bent rod 7082 is formed by connecting a first sub-rod, a second sub-rod, and a third sub-rod sequentially. The end of the first sub-rod furthest from the second sub-rod is connected to the blocking member 707, and the end of the third sub-rod furthest from the second sub-rod is connected to the lifting cylinder 7081. The first and third sub-rods are located on the same side of the second sub-rod, and the second sub-rod is placed horizontally. The first sub-rod forms a 90° angle with the second sub-rod, and the second sub-rod also forms a 90° angle with the third sub-rod, thus making the bent rod 7082 shaped like a "п".

[0090] The first sub-rod moves along the axial direction of the connecting hole 706.

[0091] The length of the first sub-rod is greater than the length of the third sub-rod.

[0092] In some embodiments, the lower part of the lifting cylinder 7081 is equipped with a mounting ring 7080 adapted to the pipeline.

[0093] In other embodiments, the lifting cylinder 7081 is mounted near the communication hole 706 via a bracket.

[0094] In some embodiments, the first sub-rod includes a clamping portion 7083 for clamping the protruding top of the blocking member 707.

[0095] In other embodiments, the first sub-rod and the shield 707 are integrally formed.

[0096] As a possible implementation, the intelligent robotic arm 708 is provided by an AI pipe crawling robot.

[0097] Implementation Method 4:

[0098] like Figure 12 As shown, the connecting structure is a connecting hole 706; the control mechanism includes a spring member 709 and a blocking member 707 adapted to the connecting hole 706. One end of the spring member 709 is connected to the blocking member 707, and the other end of the spring member 709 away from the blocking member 707 is connected to the inner wall of the pipe opposite to the connecting hole 706.

[0099] Operating principle: The spring 709 extends and retracts along the axis of the connecting hole 706. In its naturally extended state, it drives the blocking member 707 to close the connecting hole 706. When subjected to a preset air pressure, it drives the blocking member 707 away from the connecting hole 706 and moves towards the inner wall of the pipe.

[0100] It should be noted that the preset air pressure can be determined based on the pipeline negative pressure and atmospheric pressure, or it can be determined through actual measurement. Once determined, select the appropriate spring.

[0101] Optionally, the connecting hole 706 is circular, and the blocking member 707 is a circular plate.

[0102] Furthermore, the connecting hole 706 is provided with an annular protrusion 712 along its axial direction to prevent the blocking member 707 from dislodging from the connecting hole 706 and entering the outside of the pipe. After the blocking member 707 is placed inside the pipe, an annular sealing ring can be provided at the connecting hole 706 for sealing and blocking; or a matching metal ring can be welded at the connecting hole 706 for blocking.

[0103] Implementation Method 5:

[0104] like Figure 13 As shown, the connecting structure is a connecting hole 706; the control mechanism includes a spring member 709 and a blocking member 707 adapted to the connecting hole 706. One end of the spring member 709 is connected to the blocking member 707, and the other end of the spring member 709 away from the blocking member 707 is connected to a pressure-bearing member 710 outside the corresponding pipe of the connecting hole 706; the pressure-bearing member 710 is opposite to the connecting hole 706, and the pressure-bearing member 710 is connected to the corresponding pipe of the connecting hole 706 through a support member 711.

[0105] Operating principle: The spring 709 extends and retracts along the axis of the connecting hole 706. In its natural extended state, it drives the blocking member 707 to close the connecting hole 706. When subjected to a preset air pressure, it drives the blocking member 707 to move away from the connecting hole 706 and away from the pressure-bearing member 710.

[0106] It should be noted that the preset air pressure can be determined based on the pipeline negative pressure and atmospheric pressure, or it can be determined through actual measurement. Once determined, select the appropriate spring.

[0107] Optionally, the connecting hole 706 is circular, the blocking member 707 is a circular plate, and the pressure-bearing member 710 is a circular plate; the support member 711 is a column, with one end of multiple columns arranged around the pressure-bearing circular plate by welding intervals, and the other end welded to the pipe. The two ends of the spring member 709 can also be fixed by welding.

[0108] Furthermore, the connecting hole 706 is provided with an annular protrusion 712 along its axial direction to prevent the blocking member 707 from dislodging from the connecting hole 706 and entering the outside of the pipe. After the blocking member 707 is placed inside the pipe, an annular sealing ring can be provided at the connecting hole 706 for sealing and blocking; or a matching metal ring can be welded at the connecting hole 706 for blocking.

[0109] In one embodiment, the connecting hole 706 can be provided as follows: Figure 7 The top end of the liquid supply main pipe 201 shown.

[0110] Example 2:

[0111] This application embodiment also provides a liquid circulation cooling system, which includes: a coolant supply device 100, including a supply port 101 and a return port 102; a main pipeline 200, including a main supply pipe 201 and a main return pipe 202; at least one cluster of open overflow cabinets 300, the supply branch pipes 301 of the overflow cabinets 300 being connected to the supply port 101 through the main supply pipe 201; a storage tank 400, disposed below each cluster of overflow cabinets 300, configured to collect the coolant returning to the overflow cabinets 300 by gravity, the storage tank 400 being connected to the return port 102 through the main return pipe 202; a pump group 500, configured to provide circulation power for the coolant; a heat exchanger 600, configured to perform heat exchange for the coolant; and a venting device 700, disposed on at least one supply branch pipe 301 or at a first preset height of the main supply pipe 201 to construct a venting device for the corresponding pipeline.

[0112] This embodiment is similar to Embodiment 1, with a pipeline installed from the cabinet to the liquid storage section.

[0113] In one embodiment, the ventilating device includes: a connecting structure connected to the liquid supply branch pipe or the first preset height; and a control mechanism for controlling the on / off state of the connecting structure.

[0114] In one embodiment, the connecting structure is a connecting pipe, and the control mechanism is an electric ball valve.

[0115] In one embodiment, the end of the connecting pipe away from the liquid supply branch pipe or at the first preset height is connected to the atmospheric environment.

[0116] In one embodiment, the venting device further includes a filter screen disposed within the connecting pipe between the atmospheric environment and the electric ball valve to filter impurities from the atmospheric environment.

[0117] In one embodiment, one end of the connecting pipe away from the supply branch pipe or the first preset height is connected to at least one return branch pipe or the return main pipe at a second preset height.

[0118] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a blocking member adapted to the connecting hole and an intelligent robotic arm that controls the movement of the blocking member to open or close the connecting hole.

[0119] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a spring and a blocking member adapted to the connecting hole, one end of the spring is connected to the blocking member, and the end of the spring away from the blocking member is connected to the inner wall of the pipe opposite to the connecting hole; the spring extends and retracts along the axial direction of the connecting hole, driving the blocking member to close the connecting hole in its naturally extended state, and driving the blocking member away from the connecting hole and moving towards the inner wall of the pipe when subjected to a preset air pressure.

[0120] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a spring and a blocking member adapted to the connecting hole, one end of the spring is connected to the blocking member, and the end of the spring away from the blocking member is connected to a pressure-bearing member outside the pipe corresponding to the connecting hole; the pressure-bearing member is opposite to the connecting hole, and the pressure-bearing member is connected to the pipe corresponding to the connecting hole through a support member; the spring extends and retracts along the axial direction of the connecting hole, driving the blocking member to close the connecting hole in its naturally extended state, and driving the blocking member away from the connecting hole and away from the pressure-bearing member when subjected to a preset air pressure.

[0121] In one embodiment, the connecting hole is provided with an annular protrusion along its axial direction, the annular protrusion being in close contact with the top outer edge of the shielding member to prevent the shielding member from leaving the connecting hole and entering the outside of the pipe.

[0122] In one embodiment, the overflow cabinet is an overflow battery pack or an overflow data cabinet; and / or the liquid circulation cooling system further includes a control unit configured to control the venting device to activate venting when the pump group stops operating.

[0123] In one embodiment, when the pump unit stops operating and the venting device is activated, the pipeline elevation structure and the overflow cabinet form a liquid-filled communicating vessel.

[0124] In one embodiment, the pipeline elevation structure includes a first pipe section, a connecting pipe section, and a second pipe section connected in sequence. The first pipe section is connected to the liquid supply port of the cabinet, the connecting pipe section extends along the height direction or an inclined path along the height direction, and the second pipe section is connected to the interface of the main liquid supply pipe.

[0125] In one embodiment, when the venting device is located on the liquid supply branch pipe, the pipeline elevation structure includes a first pipe section, a connecting pipe section, and a second pipe section connected in sequence. The first pipe section is connected to the liquid supply port of the cabinet, the connecting pipe section extends along the height direction or an inclined path along the height direction, and the second pipe section is connected to the interface of the main liquid supply pipe. The elevation height of the connecting pipe section exceeds the corresponding liquid level of the cabinet, and the venting device is located on the connecting pipe section above the liquid level of the cabinet, or the venting device is located on the second pipe section.

[0126] Example 3:

[0127] like Figure 14 As shown in the embodiment of this application, a liquid circulation cooling system is also provided, comprising: a coolant supply device 100, including a supply port 101 and a return port 102; a main pipeline 200, including a main supply pipe 201 and a main return pipe 202; at least one cluster of open overflow cabinets 300, wherein the supply branch pipes 301 of the overflow cabinets 300 are connected to the supply port 101 through the main supply pipe 201; a storage tank 400, disposed below each cluster of overflow cabinets 300, configured to collect the coolant returning to the overflow cabinets 300 by gravity, the storage tank 400 being connected to the return port 102 through the main return pipe 202; a pump group 500, configured to provide circulation power for the coolant; a heat exchanger 600, configured to perform heat exchange for the coolant; and a venting device 700, disposed on at least one supply branch pipe 301 or at a first preset height of the main supply pipe 201 to construct a venting device for the corresponding pipeline.

[0128] Compared with Example 1, Example 3 does not have a pipeline from the cabinet to the liquid storage section, but relies on the natural fall of the liquid for collection; the cabinet is open.

[0129] In this embodiment, the top of the liquid storage tank 400 is open, and its open area can cover the area of ​​the cabinet where the liquid returns, so as to achieve collection.

[0130] In one embodiment, the ventilating device includes: a connecting structure connected to the liquid supply branch pipe or the first preset height; and a control mechanism for controlling the on / off state of the connecting structure.

[0131] In one embodiment, the connecting structure is a connecting pipe, and the control mechanism is an electric ball valve.

[0132] In one embodiment, the end of the connecting pipe away from the liquid supply branch pipe or at the first preset height is connected to the atmospheric environment.

[0133] In one embodiment, the venting device further includes a filter screen disposed within the connecting pipe between the atmospheric environment and the electric ball valve to filter impurities from the atmospheric environment.

[0134] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a blocking member adapted to the connecting hole and an intelligent robotic arm that controls the movement of the blocking member to open or close the connecting hole.

[0135] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a spring and a blocking member adapted to the connecting hole, one end of the spring is connected to the blocking member, and the end of the spring away from the blocking member is connected to the inner wall of the pipe opposite to the connecting hole; the spring extends and retracts along the axial direction of the connecting hole, driving the blocking member to close the connecting hole in its naturally extended state, and driving the blocking member away from the connecting hole and moving towards the inner wall of the pipe when subjected to a preset air pressure.

[0136] In one embodiment, the connecting structure is a connecting hole; the control mechanism includes a spring and a blocking member adapted to the connecting hole, one end of the spring is connected to the blocking member, and the end of the spring away from the blocking member is connected to a pressure-bearing member outside the pipe corresponding to the connecting hole; the pressure-bearing member is opposite to the connecting hole, and the pressure-bearing member is connected to the pipe corresponding to the connecting hole through a support member; the spring extends and retracts along the axial direction of the connecting hole, driving the blocking member to close the connecting hole in its naturally extended state, and driving the blocking member away from the connecting hole and away from the pressure-bearing member when subjected to a preset air pressure.

[0137] In one embodiment, the connecting hole is provided with an annular protrusion along its axial direction, the annular protrusion being in close contact with the top outer edge of the shielding member to prevent the shielding member from leaving the connecting hole and entering the outside of the pipe.

[0138] In one embodiment, the overflow cabinet is an overflow battery pack or an overflow data cabinet; and / or the liquid circulation cooling system further includes a control unit configured to control the venting device to activate venting when the pump group stops operating.

[0139] In one embodiment, when the pump unit stops operating and the venting device is activated, the pipeline elevation structure and the overflow cabinet form a liquid-filled communicating vessel.

[0140] In one embodiment, the pipeline elevation structure includes a first pipe section, a connecting pipe section, and a second pipe section connected in sequence. The first pipe section is connected to the liquid supply port of the cabinet, the connecting pipe section extends along the height direction or an inclined path along the height direction, and the second pipe section is connected to the interface of the main liquid supply pipe.

[0141] In one embodiment, when the venting device is located on the liquid supply branch pipe, the pipeline elevation structure includes a first pipe section, a connecting pipe section, and a second pipe section connected in sequence. The first pipe section is connected to the liquid supply port of the cabinet, the connecting pipe section extends along the height direction or an inclined path along the height direction, and the second pipe section is connected to the interface of the main liquid supply pipe. The elevation height of the connecting pipe section exceeds the corresponding liquid level of the cabinet, and the venting device is located on the connecting pipe section above the liquid level of the cabinet, or the venting device is located on the second pipe section.

[0142] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0143] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0144] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A liquid circulating cooling system characterized by, The application relates to a cooling liquid supply device, which comprises a liquid supply port and a liquid return port, a main pipeline comprising a liquid supply main pipe and a liquid return main pipe, at least one cluster of overflow cabinets, liquid supply branch pipes of the overflow cabinets being communicated with the liquid supply port through the liquid supply main pipe, liquid return branch pipes of the overflow cabinets being communicated with the liquid return port through the liquid return main pipe, a liquid storage tank arranged on the liquid return main pipe and configured to store cooling liquid returned by gravity from the overflow cabinets, the top of the liquid storage tank being provided with a gas permeation structure communicated with the atmosphere, a pump group configured to provide circulating power for the cooling liquid, a heat exchanger configured to perform heat exchange on the cooling liquid, and a gas permeation device arranged on at least one liquid supply branch pipe or at a first preset height of the liquid supply main pipe to build a breakable gas permeation of the corresponding pipeline. The liquid supply branch pipe comprises pipeline lifting structures with first ends and second ends, the first ends being connected with cabinet liquid supply ports, and the second ends being connected with interfaces of the liquid supply main pipe. The gas permeation device comprises a communication structure communicated with the liquid supply branch pipe or the first preset height, and a control mechanism controlling the breakable state of the communication structure. The communication structure is a communication pipe, and the control mechanism is an electric ball valve. One end of the communication pipe, which is away from the liquid supply branch pipe or the first preset height, is communicated with the atmosphere. The gas permeation device further comprises a filter screen. The filter screen is arranged in the communication pipe between the atmosphere and the electric ball valve to filter impurities from the atmosphere. One end of the communication pipe, which is away from the liquid supply branch pipe or the first preset height, is communicated with at least one liquid return branch pipe or a second preset height of the liquid return main pipe. The communication structure is a communication hole.

2. The liquid circulating cooling system of claim 1, wherein, The control mechanism comprises a shielding piece matched with the communication hole and an intelligent mechanical arm controlling the shielding piece to break or connect the communication hole. The communication structure is a communication hole. The control mechanism comprises a spring piece and a shielding piece matched with the communication hole, one end of the spring piece being connected with the shielding piece, and the other end of the spring piece, which is away from the shielding piece, being connected with an inner wall of a pipeline opposite to the communication hole.

3. The liquid circulating cooling system of claim 2, wherein, The spring piece is stretched and contracted along the axis direction of the communication hole, drives the shielding piece to close the communication hole in a natural stretching state, and drives the shielding piece to move away from the communication hole and the inner wall of the pipeline when a preset air pressure is borne.

4. The liquid circulating cooling system of claim 3, wherein, The communication structure is a communication hole.

5. The liquid circulating cooling system of claim 4, wherein, The control mechanism comprises a spring piece and a shielding piece matched with the communication hole, one end of the spring piece being connected with the shielding piece, and the other end of the spring piece, which is away from the shielding piece, being connected with a pressure bearing piece outside a pipeline corresponding to the communication hole. The pressure bearing piece is opposite to the communication hole, and the pressure bearing piece is connected with the pipeline corresponding to the communication hole through a support piece.

6. The liquid circulating cooling system of claim 3, wherein, The spring piece is stretched and contracted along the axis direction of the communication hole, drives the shielding piece to close the communication hole in a natural stretching state, and drives the shielding piece to move away from the communication hole and the support piece when a preset air pressure is borne.

7. The liquid circulating cooling system of claim 2, wherein, ​ ​ 8. The liquid circulating cooling system of claim 2, wherein, ​ ​ ​ 9. The liquid circulating cooling system of claim 2, wherein, ​ ​ ​ ​ 10. The liquid circulating cooling system according to claim 8 or 9, characterized in that, The communication hole is provided with an annular protrusion along its axial direction, which is in close contact with the top outer edge of the shielding piece, for preventing the shielding piece from separating from the communication hole and entering the pipeline.

11. The liquid circulating cooling system of claim 1, wherein, The overflow cabinet is an overflow battery pack or an overflow data cabinet; and / or The liquid circulating cooling system further comprises a control unit configured to control the air breather to start breathing when the pump set stops running.

12. The liquid circulating cooling system of claim 1, wherein, When the pump set stops running and the air breather is turned on, the pipeline lifting structure and the overflow cabinet form a liquid-containing communication device.

13. The liquid circulating cooling system of claim 1, wherein, The pipeline lifting structure comprises a first pipe section, a connecting pipe section and a second pipe section connected in sequence, the first pipe section is connected with the cabinet liquid inlet, the connecting pipe section extends along the height direction or an inclined path in the height direction, and the second pipe section is connected with the interface of the liquid supply main pipe.

14. The liquid circulating cooling system of claim 1, wherein, For the case that the air breather is arranged on the liquid supply branch pipe, the pipeline lifting structure comprises a first pipe section, a connecting pipe section and a second pipe section connected in sequence, the first pipe section is connected with the cabinet liquid inlet, the connecting pipe section extends along the height direction or an inclined path in the height direction, and the second pipe section is connected with the interface of the liquid supply main pipe. The lifting height of the connecting pipe section exceeds the liquid level of the corresponding cabinet, and the air breather is arranged on the connecting pipe section above the liquid level of the cabinet, or the air breather is arranged on the second pipe section.

15. A liquid circulating cooling system characterized by, Comprise: A cooling liquid supply device comprising a liquid supply inlet and a liquid return outlet; A main pipeline comprising a liquid supply main pipe and a liquid return main pipe; At least one cluster of open-type overflow cabinets, the liquid supply branch pipes of the overflow cabinets being communicated with the liquid supply inlet through the liquid supply main pipe; A liquid storage tank arranged below each cluster of the overflow cabinets and configured to collect the cooling liquid returned by gravity from the overflow cabinets, the liquid storage tank being communicated with the liquid return outlet through the liquid return main pipe; A pump set configured to provide circulating power for the cooling liquid; A heat exchanger configured to exchange heat with the cooling liquid, and An air breather arranged on at least one of the liquid supply branch pipes or at a first predetermined height of the liquid supply main pipe to build a breakable air passage for the corresponding pipeline; The liquid supply branch pipe comprises a pipeline lifting structure with a first end and a second end, the first end being connected with the cabinet liquid inlet, and the second end being connected with the interface of the liquid supply main pipe.

Images