WO2024259921A1 - 单相冷板式液冷系统及其控制方法和电子设备 - Google Patents

单相冷板式液冷系统及其控制方法和电子设备 Download PDF

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Publication number
WO2024259921A1
WO2024259921A1 PCT/CN2023/139594 CN2023139594W WO2024259921A1 WO 2024259921 A1 WO2024259921 A1 WO 2024259921A1 CN 2023139594 W CN2023139594 W CN 2023139594W WO 2024259921 A1 WO2024259921 A1 WO 2024259921A1
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WIPO (PCT)
Prior art keywords
cold plate
phase cold
switch valve
pipeline
connecting branch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/139594
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English (en)
French (fr)
Inventor
朱欢来
刘广志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Metabrain Intelligent Technology Co Ltd
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Suzhou Metabrain Intelligent Technology Co Ltd
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Application filed by Suzhou Metabrain Intelligent Technology Co Ltd filed Critical Suzhou Metabrain Intelligent Technology Co Ltd
Priority to US19/115,752 priority Critical patent/US12610501B2/en
Publication of WO2024259921A1 publication Critical patent/WO2024259921A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20763—Liquid cooling without phase change
    • H05K7/2079—Liquid cooling without phase change within rooms for removing heat from cabinets
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20254—Cold plates transferring heat from heat source to coolant
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20263—Heat dissipaters releasing heat from coolant
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20281—Thermal management, e.g. liquid flow control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20763—Liquid cooling without phase change
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20836—Thermal management, e.g. server temperature control

Definitions

  • the embodiments of the present application relate to the computer field, and more specifically, to a single-phase cold plate liquid cooling system, a control method thereof, and an electronic device.
  • the single-phase cold plate in order to improve the cooling efficiency of the single-phase cold plate, the single-phase cold plate usually includes multiple capillary tubes arranged in parallel.
  • the capillary tubes are very easy to be blocked, resulting in reduced cooling efficiency.
  • the quick-connect joints of the cooling system are usually made of metal. There are eddy current generating areas and circulation dead zones when the coolant flows through the quick-connect joints, which makes electrochemical corrosion easy to occur at the quick-connect joints. This has also become a difficult problem that plagues the later maintenance of single-phase cold plate liquid cooling.
  • the embodiments of the present application provide a single-phase cold plate liquid cooling system and a control method and electronic device thereof, so as to at least solve the problem in the related art that the coolant is easily clogged or electrochemically corroded at the single-phase cold plate and the quick-connect joint.
  • a single-phase cold plate type liquid cooling system comprising a cooling pipeline, a detection component and an auxiliary pipeline, wherein the cooling pipeline comprises a heat exchanger and at least one single-phase cold plate, the heat exchanger and the single-phase cold plate are interconnected, and the cooling pipeline has a forward circulation mode and a reverse circulation mode; the detection component is arranged at a quick-connect joint of the single-phase cold plate and/or the cooling pipeline to detect the operating parameters of the cooling pipeline; the auxiliary pipeline is openably connected to the single-phase cold plate, and the auxiliary pipeline is connected to the single-phase cold plate in an openable and closable manner.
  • the pipeline is provided with a vacuum generating device; when the detection component detects that the operating parameter exceeds a preset value, the circulation mode of the cooling pipeline is changed, and the auxiliary pipeline is connected with the single-phase cold plate.
  • the cooling pipeline includes a first connecting branch and a second connecting branch.
  • the single-phase cold plate is connected to the heat exchanger through the first connecting branch; when the cooling pipeline is in a reverse circulation mode, the single-phase cold plate is connected to the heat exchanger through the second connecting branch.
  • the cooling pipeline further includes a main pipeline, and the single-phase cold plate is selectively connected with the first connecting branch and the second connecting branch through the main pipeline.
  • the cooling pipeline also includes a first circulation pump and a second circulation pump, wherein the first circulation pump is arranged on a first connecting branch, and when the main line is connected to the first connecting branch, the first circulation pump is located upstream of the heat exchanger; the second circulation pump is arranged on a second connecting branch, and when the main line is connected to the second connecting branch, the second circulation pump is located upstream of the heat exchanger.
  • the cooling pipeline also includes a first switch valve and a second switch valve, wherein the first switch valve is arranged on the first connecting branch, and the heat exchanger is located between the first circulation pump and the first switch valve; the second switch valve is arranged on the second connecting branch, and the heat exchanger is located between the second circulation pump and the second switch valve; when the cooling pipeline is in a forward circulation mode, the first switch valve is opened and the second switch valve is closed; when the cooling pipeline is in a reverse circulation mode, the first switch valve is closed and the second switch valve is opened.
  • the cooling pipeline further includes a first water tank and a second water tank respectively connected to the main pipeline, and the first water tank is arranged between the single-phase cold plate and the first circulation pump, and the second water tank is arranged between the single-phase cold plate and the second circulation pump.
  • the auxiliary pipeline includes a third water tank, and the third water tank is connected to an end of the vacuum generating device away from the single-phase cold plate.
  • the auxiliary pipeline further includes a third connecting branch and a fourth connecting branch, wherein the third water tank is connected to the first water tank through the third connecting branch; and the third water tank is connected to the second water tank through the fourth connecting branch.
  • the auxiliary pipeline also includes a third switch valve and a fourth switch valve, wherein the third switch valve is arranged on the third connecting branch; the fourth switch valve is arranged on the fourth connecting branch; when the cooling pipeline is in a forward circulation mode, the third switch valve is opened and the fourth switch valve is closed; when the cooling pipeline is in a reverse circulation mode, the third switch valve is closed and the fourth switch valve is opened.
  • the multiple single-phase cold plates when there are multiple single-phase cold plates, the multiple single-phase cold plates are arranged in parallel, and the multiple single-phase cold plates are all connected to the main pipeline.
  • the cooling pipeline further includes a plurality of fifth switch valves and a plurality of sixth switch valves, and at least one fifth switch valve and a sixth switch valve are respectively disposed on both sides of at least one single-phase cold plate.
  • the fifth switch valve, the sixth switch valve and the single-phase cold plate are the same in number and correspond one to one, and a fifth switch valve and a sixth switch valve are respectively disposed on both sides of each single-phase cold plate.
  • the auxiliary pipeline includes a fifth connecting branch and a sixth connecting branch, the fifth connecting branch and the sixth connecting branch are respectively connected to the same end of the vacuum generating device, and the vacuum generating device is respectively connected to the two ends of the single-phase cold plate through the fifth connecting branch and the sixth connecting branch.
  • the auxiliary pipeline also includes a seventh switch valve and an eighth switch valve, wherein the seventh switch valve is arranged on the fifth connecting branch; the eighth switch valve is arranged on the sixth connecting branch; when the cooling pipeline is in a forward circulation mode, the eighth switch valve is closed; when the cooling pipeline is in a reverse circulation mode, the seventh switch valve is closed and the eighth switch valve is opened.
  • the single-phase cold plate liquid cooling system also includes a data acquisition module and a control module, wherein the data acquisition module is connected to the detection component signal; the control module is respectively connected to the data acquisition module, the cooling pipeline and the auxiliary pipeline signal to control the circulation mode of the cooling pipeline and the opening and closing of the auxiliary pipeline according to the information received from the data acquisition module.
  • the detection assembly includes at least one of a pressure sensor and a conductivity detection element.
  • the cooling pipeline further includes a plurality of bidirectional filters, and at least one bidirectional filter is respectively disposed at both ends of each single-phase cold plate.
  • the cooling pipeline includes a first connecting branch, a second connecting branch and a main pipeline, and the single-phase cold plate is selectively connected to the first connecting branch and the second connecting branch through the main pipeline, respectively.
  • the cooling pipeline also includes a first circulation pump and a second circulation pump.
  • the first circulation pump is arranged on the first connecting branch. When the main pipeline is connected to the first connecting branch, the first circulation pump is located upstream of the heat exchanger.
  • the second circulation pump is arranged on the second connecting branch. When the main pipeline is connected to the second connecting branch, the second circulation pump is located upstream of the heat exchanger.
  • the cooling pipeline also includes a first switch valve and a second switch valve.
  • the first switch valve is arranged on the first connecting branch, and the heat exchanger is located at Between the first circulation pump and the first switch valve, the second switch valve is arranged on the second connecting branch, and the heat exchanger is located between the second circulation pump and the second switch valve, the cooling pipeline also includes a first water tank and a second water tank respectively connected to the main pipeline, and the first water tank is arranged between the single-phase cold plate and the first circulation pump, and the second water tank is arranged between the single-phase cold plate and the second circulation pump.
  • the first switch valve When the cooling pipeline is in the forward circulation mode, the first switch valve is opened, the second switch valve is closed, and the first circulation pump draws the coolant in the first water tank; when the cooling pipeline is in the reverse circulation mode, the first switch valve is closed, the second switch valve is opened, and the second circulation pump draws the coolant in the second water tank.
  • a single-phase cold plate liquid cooling system control method is provided, which is applied to the above-mentioned single-phase cold plate liquid cooling system, including: detecting the operating parameters of the cooling pipeline through a detection component; when the detection component detects that the operating parameter exceeds a preset value, the circulation mode of the cooling pipeline is changed, and the auxiliary pipeline is connected to the single-phase cold plate of the cooling pipeline.
  • an electronic device comprising the above-mentioned single-phase cold plate liquid cooling system.
  • the single-phase cold plate liquid cooling system in the present application includes a cooling pipeline, a detection component and an auxiliary pipeline, wherein the cooling pipeline includes a heat exchanger and at least one single-phase cold plate, the heat exchanger and the single-phase cold plate are interconnected, and the cooling pipeline has a forward circulation mode and a reverse circulation mode; the detection component is arranged at the quick-connect joint of the single-phase cold plate and/or the cooling pipeline to detect the operating parameters of the cooling pipeline; the auxiliary pipeline is connected to the single-phase cold plate in an openable and closable manner, and the auxiliary pipeline has a vacuum generating device; when the detection component detects that the operating parameter exceeds a preset value, the circulation mode of the cooling pipeline changes, and the auxiliary pipeline is connected to the single-phase cold plate.
  • the cooling pipeline includes a heat exchanger and at least one single-phase cold plate, the heat exchanger and the single-phase cold plate are interconnected, and the cooling pipeline has a forward circulation mode and a reverse circulation mode;
  • the detection component
  • the cooling pipeline of the single-phase cold plate liquid cooling system has a forward circulation mode and a reverse circulation mode, for example, the cooling pipeline is in the forward circulation mode for heat exchange, when the coolant is electrochemically corroded at the single-phase cold plate and the quick-connect joint, or dirt and impurities clog the liquid cooling system, the operating parameters measured by the detection component exceed the preset value, the circulation mode of the cooling pipeline is changed, and the auxiliary pipeline is connected to the single-phase cold plate.
  • the reverse circulation of the single-phase cold plate liquid cooling system and the suction effect of the vacuum generating device the impurities and dirt in the single-phase cold plate and the quick-connect joint are flushed out to prevent blockage, and the reverse circulation breaks the vortex rotation direction, and new coolant flows into the original circulation dead zone, eliminating or alleviating local electrochemical corrosion.
  • the problem of electrochemical corrosion and blockage easily occurring at the single-phase cold plate and the quick-connect joint is solved, thereby achieving the effect of improving the stability of the liquid cooling system and the convenience of maintenance.
  • FIG1 is a schematic diagram of a system in which a bidirectional filter is omitted in a single-phase cold plate liquid cooling system according to the present application;
  • FIG2 is a schematic diagram of a system in which a data acquisition module and a control module are omitted according to the single-phase cold plate liquid cooling system in FIG1 ;
  • FIG. 3 is a partial system schematic diagram of a single-phase cold plate liquid cooling system in FIG. 1 in which two-way filters are arranged at both ends of a one-way cold plate.
  • Cooling pipeline 11. Heat exchanger; 111. Heat exchange body; 112. Heat exchange pipeline; 1121. Third circulation pump; 1122, heat dissipation terminal; 12, single-phase cold plate; 13, first connecting branch; 14, second connecting branch; 15, main line; 16, first circulation pump; 17, second circulation pump; 18, first switch valve; 19, second switch valve; 110, first water tank; 120, second water tank; 130, fifth switch valve; 140, sixth switch valve; 150, two-way filter; 20. Auxiliary pipeline; 21. Vacuum generating device; 22. Third water tank; 23. Third connecting branch; 24. Fourth connecting branch; 25. Third switch valve; 26. Fourth switch valve; 27. Fifth connecting branch; 28. Sixth connecting branch; 29. Seventh switch valve; 210. Eighth switch valve; 30. Data acquisition module; 40. Control module; 2. Main board.
  • the present application provides a single-phase cold plate liquid cooling system, a control method thereof, and an electronic device.
  • the electronic device in the present application includes a mainboard 2 and the following single-phase cold plate liquid cooling system.
  • the single-phase cold plate liquid cooling system includes a cooling pipeline 10, a detection component and an auxiliary pipeline 20, wherein the cooling pipeline 10 includes a heat exchanger 11 and at least one single-phase cold plate 12, the heat exchanger 11 is interconnected with the single-phase cold plate 12, and the cooling pipeline 10 has a forward circulation mode and a reverse circulation mode; the detection component is arranged at the quick-connect joint of the single-phase cold plate 12 and the cooling pipeline 10 to detect the operating parameters of the cooling pipeline 10; the auxiliary pipeline 20 is connected to the single-phase cold plate 12 in an openable and closable manner, and the auxiliary pipeline 20 has a vacuum generating device 21; when the detection component detects that the operating parameter exceeds a preset value, the circulation mode of the cooling pipeline 10 changes, and the auxiliary pipeline 20 is connected to the single-phase cold plate 12.
  • the cooling pipeline 10 of the single-phase cold plate 12 liquid cooling system has a forward circulation mode and a reverse circulation mode, for example, the cooling pipeline 10 is in the forward circulation mode for heat exchange, when the coolant is electrochemically corroded at the single-phase cold plate 12 and the quick-connect joint, or dirt and impurities clog the liquid cooling system, the operating parameters measured by the detection component exceed the preset value, the circulation mode of the cooling pipeline 10 is changed, and the auxiliary pipeline 20 is connected to the single-phase cold plate 12.
  • the impurities and dirt of the single-phase cold plate 12 and the quick-connect joint are flushed out to prevent clogging, and the reverse circulation breaks the vortex rotation direction, and new coolant flows into the original circulation dead zone, eliminating or alleviating local electrochemical corrosion.
  • the problem of electrochemical corrosion and clogging easily occurring at the single-phase cold plate 12 and the quick-connect joint is solved, thereby achieving the effect of improving the stability of the liquid cooling system and the convenience of maintenance.
  • the single-phase cold plate 12 is connected to the heat source of the main board 2 to dissipate heat for the main board 2 .
  • the cooling water in the forward circulation mode circulates in a clockwise direction
  • the cooling water in the reverse circulation mode circulates in a counterclockwise direction
  • the cooling pipeline 10 includes a first connecting branch 13 and a second connecting branch 14.
  • the single-phase cold plate 12 When the cooling pipeline 10 is in a forward circulation mode, the single-phase cold plate 12 is connected to the heat exchanger 11 through the first connecting branch 13; when the cooling pipeline 10 is in a reverse circulation mode, the single-phase cold plate 12 is connected to the heat exchanger 11 through the second connecting branch 14.
  • the direction in which the coolant flows through the heat exchanger 11 through the first connecting branch 13 is opposite to the direction in which the coolant flows through the heat exchanger 11 through the second connecting branch 14.
  • the cooling pipeline 10 also includes a main pipeline 15, and the single-phase cold plate 12 is selectively connected with the first connecting branch 13 and the second connecting branch 14 through the main pipeline 15.
  • the single-phase cold plate 12 is connected with the first connecting branch 13 through the main pipeline 15, and when the cooling pipeline 10 is in the reverse circulation mode, the single-phase cold plate 12 is connected with the second connecting branch 14 through the main pipeline 15. That is to say, in the present application, in the forward circulation mode and the reverse circulation mode, not only the flow direction of the cooling water is different, but also the flow path of the cooling water is not completely overlapped.
  • the cooling pipeline 10 further includes a first circulation pump 16 and a second circulation pump 17, wherein the first circulation pump 16 is arranged on the first connecting branch 13, and when the main pipeline 15 is connected to the first connecting branch 13, the first circulation pump 16 is located upstream of the heat exchanger 11; the second circulation pump 17 is arranged on the second connecting branch 14, and when the main pipeline 15 is connected to the second connecting branch 14, the second circulation pump 17 is located upstream of the heat exchanger 11.
  • the first circulation pump 16 and the second circulation pump 17 provide power for the flow of the coolant in the cooling pipeline 10
  • the first circulation pump 16 drives the coolant to circulate in the main pipeline 15 and the first connecting branch 13 to realize the forward circulation of the coolant in the cooling pipeline 10
  • the second circulation pump 17 drives the coolant to circulate in the main pipeline 15 and the second connecting branch 14 to realize the reverse circulation of the coolant in the cooling pipeline 10.
  • the cooling pipeline 10 further includes a first switch valve 18 and a second switch valve 19, wherein the first switch valve 18 is arranged on the first connecting branch 13, and the heat exchanger 11 is located between the first circulating pump 16 and the first switch valve 18; the second switch valve 19 is arranged on the second connecting branch 14, and the heat exchanger 11 is located between the second circulating pump 17 and the second switch valve 19; when the cooling pipeline 10 is in the forward circulation mode, the first switch valve 18 is opened and the second switch valve 19 is closed; when the cooling pipeline 10 is in the reverse circulation mode, the first switch valve 18 is closed and the second switch valve 19 is opened.
  • the main pipeline 15 is controlled to be connected with one of the first connecting branch 13 or the second connecting branch 14, so as to ensure that the cooling pipeline 10 is switched between the forward circulation mode and the reverse circulation mode.
  • the cooling pipeline 10 further includes a first water tank 110 and a second water tank 120 respectively connected to the main pipeline 15, and the first water tank 110 is arranged between the single-phase cold plate 12 and the first circulation pump 16, and the second water tank 120 is arranged between the single-phase cold plate 12 and the second circulation pump 17.
  • the cooling pipeline 10 when the cooling pipeline 10 is in the forward circulation mode, the coolant stored in the first water tank 110 is circulated on the main pipeline 15 and the first connecting branch 13 through the first circulation pump 16, and when the cooling pipeline 10 is in the reverse circulation mode, the coolant stored in the second water tank 120 is circulated on the main pipeline 15 and the second connecting branch 14 through the second circulation pump 17.
  • the heat exchanger 11 includes a heat exchange body 111 and a heat exchange pipeline 112, the heat exchange pipeline 112 is connected to the heat exchange body 111, the heat exchange pipeline 112 is used to exchange heat for the heat exchange body 111, the heat exchange pipeline 112 includes a third circulation pump 1121 and a heat dissipation terminal 1122, wherein the coolant circulates through the heat exchange body 111, the heat dissipation terminal 1122, and the third circulation pump 1121 in sequence on the heat exchanger 11.
  • the direction in which the coolant in the heat exchange pipeline 112 flows through the heat exchange body 111 is opposite to the direction in which the coolant in the cooling pipeline 10 flows through the heat exchange body 111 in the forward circulation mode, and the direction in which the coolant in the heat exchange pipeline 112 flows through the heat exchange body 111 is the same as the direction in which the coolant in the heat exchange pipeline 10 flows through the heat exchange body 111 in the reverse circulation mode.
  • the auxiliary pipeline 20 includes a third water tank 22, which is connected to an end of the vacuum generator 21 away from the single-phase cold plate 12. In this way, water vapor generated by the gasification of the coolant in the single-phase cold plate 12 enters the third water tank 22 through the suction action of the vacuum generator 21 and is liquefied and stored.
  • the auxiliary pipeline 20 further includes a third connecting branch 23 and a fourth connecting branch 24, wherein the third water tank 22 is connected to the first water tank 110 via the third connecting branch 23; and the third water tank 22 is connected to the second water tank 120 via the fourth connecting branch 24.
  • the coolant in the third water tank 22 can flow into the first water tank 110 via the third connecting branch 23, or the coolant in the third water tank 22 can flow into the second water tank 120 via the fourth connecting branch 24, thereby realizing the recycling of the coolant and saving costs.
  • the auxiliary pipeline 20 further includes a third switch valve 25 and a fourth switch valve 26, wherein the third switch valve 25 is arranged on the third connecting branch 23; the fourth switch valve 26 is arranged on the fourth connecting branch 24; when the cooling pipeline 10 is in the forward circulation mode, the third switch valve 25 is opened and the fourth switch valve 26 is closed; when the cooling pipeline 10 is in the reverse circulation mode, the third switch valve 25 is closed and the fourth switch valve 26 is opened.
  • the multiple single-phase cold plates 12 when there are multiple single-phase cold plates 12, the multiple single-phase cold plates 12 are arranged in parallel, and the multiple single-phase cold plates 12 are all connected to the main pipeline 15. In this way, the cooling pipeline 10 can cool multiple single-phase cold plates 12 arranged in parallel at the same time, thereby improving the cooling efficiency.
  • the cooling pipeline 10 further includes a plurality of fifth switch valves 130 and a plurality of sixth switch valves 140, and at least one fifth switch valve 130 and a sixth switch valve 140 are respectively provided on both sides of at least one single-phase cold plate 12.
  • the single-phase cold plate 12 located between the fifth switch valve 130 and the sixth switch valve 140 is controlled to be in a cooling working state or a non-cooling closed state.
  • the single-phase cold plate 12 When the fifth switch valve 130 and the sixth switch valve 140 are opened simultaneously, the single-phase cold plate 12 is in a cooling working state, and when the fifth switch valve 130 and the sixth switch valve 140 are closed simultaneously, the single-phase cold plate 12 is in a non-cooling closed state.
  • the number of the fifth switch valve 130, the sixth switch valve 140 and the single-phase cold plate 12 are the same and correspond to each other, and a fifth switch valve 130 and a sixth switch valve 140 are respectively arranged on both sides of each single-phase cold plate 12.
  • the opening and closing states of the fifth switch valve 130 and the sixth switch valve 140 can be adjusted according to actual conditions. state, so that a part of the single-phase cold plates 12 that need refrigeration among the multiple single-phase cold plates 12 are in a refrigeration working state, and a part of the single-phase cold plates 12 that do not need refrigeration are in a non-refrigeration closed state.
  • the auxiliary pipeline 20 includes a fifth connecting branch 27 and a sixth connecting branch 28, and the fifth connecting branch 27 and the sixth connecting branch 28 are respectively connected to the same end of the vacuum generating device 21, and the vacuum generating device 21 is respectively connected to the two ends of the single-phase cold plate 12 through the fifth connecting branch 27 and the sixth connecting branch 28.
  • the cooling pipeline 10 when the cooling pipeline 10 is in the forward circulation mode, one end of the single-phase cold plate 12 is connected to the vacuum generating device 21 through the fifth connecting branch 27, and when the cooling pipeline 10 is in the reverse circulation mode, the other end of the single-phase cold plate 12 is connected to the vacuum generating device 21 through the sixth connecting branch 28.
  • the auxiliary pipeline 20 further includes a seventh switch valve 29 and an eighth switch valve 210, wherein the seventh switch valve 29 is arranged on the fifth connecting branch 27; the eighth switch valve 210 is arranged on the sixth connecting branch 28; when the cooling pipeline 10 is in the forward circulation mode, the eighth switch valve 210 is closed; when the cooling pipeline 10 is in the reverse circulation mode, the seventh switch valve 29 is closed and the eighth switch valve 210 is opened. In this way, the cooling pipeline 10 performs heat exchange in the forward circulation mode.
  • the cooling pipeline 10 switches to the reverse circulation mode, the seventh switch valve 29 is closed, the eighth switch valve 210 is opened, and the vacuum generating device 21 is connected to the outlet end of the single-phase cold plate 12, so as to suck the dirt and impurities in the single-phase cold plate 12 and prevent the capillary line in the single-phase cold plate 12 from being blocked.
  • the seventh switch valve 29 is opened and the eighth switch valve 210 is closed.
  • the single-phase cold plate liquid cooling system further includes a data acquisition module 30 and a control module 40, wherein the data acquisition module 30 is connected to the detection component signal; the control module 40 is respectively connected to the data acquisition module 30, the cooling pipeline 10 and the auxiliary pipeline 20 signal, so as to control the circulation mode of the cooling pipeline 10 and the opening and closing of the auxiliary pipeline 20 according to the information received from the data acquisition module 30.
  • the control module 40 controls the cooling pipeline 10 to be in the forward circulation mode for heat exchange, when the operating parameters collected by the data acquisition module 30 through the detection component exceed the preset value, the control module 40 controls the cooling pipeline 10 to switch to the reverse circulation mode for heat exchange, and at the same time, the control module 40 controls the auxiliary pipeline 20 to open, and at this time, the cooling pipeline 10 is in the reverse circulation mode for heat exchange, when the operating parameters collected by the data acquisition module 30 through the detection component exceed the preset value again, the control module 40 controls the cooling pipeline 10 to switch to the forward circulation mode, and at the same time, the control module 40 controls the auxiliary pipeline 20 to open.
  • control module 40 is signal-connected to the first circulation pump 16, the second circulation pump 17, the first switch valve 18, the second switch valve 19, the fifth switch valve 130 and the sixth switch valve 140 of the cooling pipeline 10, as well as the third switch valve 25, the fourth switch valve 26, the seventh switch valve 29 and the eighth switch valve 210 of the auxiliary pipeline 20, and the third circulation pump 1121 of the heat exchanger 11.
  • the detection assembly includes at least one of a pressure sensor and a conductivity detection member.
  • the pressure sensor detects that the pressure difference between the inlet end and the outlet end of the quick-connect joint of the single-phase cold plate 12 or the cooling pipeline 10 exceeds a preset pressure difference value
  • the circulation mode of the cooling pipeline 10 changes, and the auxiliary pipeline 20 is connected to the single-phase cold plate 12; or, when the conductivity detection member detects that at least one of the conductivity of the inlet end and the outlet end of the quick-connect joint of the single-phase cold plate 12 or the cooling pipeline 10 exceeds a preset conductivity value, the circulation mode of the cooling pipeline 10 changes, and the auxiliary pipeline 20 is connected to the single-phase cold plate 12.
  • the preset conductivity value is 10 mS/cm.
  • each single-phase cold plate 12 there are multiple pressure sensors, wherein one pressure sensor is respectively provided at both ends of each single-phase cold plate 12 , and the data acquisition module 30 is used to acquire the pressure difference between the two pressure sensors at the two ends of the single-phase cold plate 12 .
  • a pressure sensor is respectively provided at both ends of each quick-connect joint of the cooling pipeline 10, and the data acquisition module 30 is used to collect the pressure difference between the two pressure sensors at both ends of each quick-connect joint.
  • each single-phase cold plate 12 there are multiple conductivity detection components, wherein one conductivity detection component is respectively provided at both ends of each single-phase cold plate 12 , and the data acquisition module 30 is used to collect the conductivity of both ends of the single-phase cold plate 12 .
  • each quick-connect joint of the cooling pipeline 10 is provided with a conductivity detection component at both ends, and the data acquisition module 30 is used to collect the conductivity of both ends of each quick-connect joint.
  • the single-phase cold plate 12 since the single-phase cold plate 12 includes a plurality of capillary tubes arranged in parallel, the flow area of the capillary tubes is small, which makes it very easy to get clogged at the entrance, increasing the thermal resistance and flow resistance of the system, which is manifested as the temperature of the heat source such as the CPU being too high or the pressure difference between the inlet and outlet of the single-phase cold plate 12 being too large, and the trend becomes more and more obvious as time goes by.
  • the quick-connect joint is made of metal
  • the coolant is commonly deionized water and antifreeze.
  • the circulation mode of the cooling pipeline 10 is changed, and the auxiliary pipeline 20 is connected to the single-phase cold plate 12.
  • the reverse circulation of the single-phase cold plate liquid cooling system breaks the eddy current rotation direction, and new coolant flows into the original circulation dead zone to eliminate or alleviate local electrochemical corrosion.
  • the cooling pipeline 10 further includes a plurality of two-way filters 150, and at least one two-way filter 150 is respectively provided at both ends of each single-phase cold plate 12.
  • the two-way filter 150 can perform two-way filtering on the coolant flowing through the single-phase cold plate 12 in the cooling pipeline 10, and can prevent the capillary line in the single-phase cold plate 12 from being blocked regardless of whether the cooling pipeline 10 is in the forward circulation mode or the reverse circulation mode.
  • the vacuum generating device 21 is a vacuum generator.
  • the suction effect of the vacuum generator can flush out the impurities and dirt at the inlet of the capillary line in the single-phase cold plate 12, and enter the two-way filter 150 to be filtered out.
  • the cooling pipeline 10 includes a first connecting branch 13, a second connecting branch 14 and a main pipeline 15.
  • the single-phase cold plate 12 is selectively connected to the first connecting branch 13 and the second connecting branch 14 through the main pipeline 15.
  • the cooling pipeline 10 also includes a first circulating pump 16 and a second circulating pump 17.
  • the first circulating pump 16 is arranged on the first connecting branch 13.
  • the first circulating pump 16 is located upstream of the heat exchanger 11.
  • the second circulating pump 17 is arranged on the second connecting branch 14.
  • the second circulating pump 17 is located upstream of the heat exchanger 11.
  • the cooling pipeline 10 also includes a first switch valve 18 and a second switch valve 19.
  • the first switch valve 18 is arranged on the first connecting branch 13, and the heat exchanger 11 is located at the second connecting branch 14.
  • a circulating pump 16 and a first switch valve 18 are provided between the second switch valve 19 and the second connecting branch 14, and the heat exchanger 11 is located between the second circulating pump 17 and the second switch valve 19.
  • the cooling pipeline 10 also includes a first water tank 110 and a second water tank 120 which are respectively connected to the main pipeline 15, and the first water tank 110 is provided between the single-phase cold plate 12 and the first circulating pump 16, and the second water tank 120 is provided between the single-phase cold plate 12 and the second circulating pump 17.
  • the first switch valve 18 When the cooling pipeline 10 is in the forward circulation mode, the first switch valve 18 is opened, the second switch valve 19 is closed, and the first circulating pump 16 extracts the coolant in the first water tank 110; when the cooling pipeline 10 is in the reverse circulation mode, the first switch valve 18 is closed, the second switch valve 19 is opened, and the second circulating pump 17 extracts the coolant in the second water tank 120.
  • the circulating flow of the coolant on one side of the heat exchange body 111 and the heat exchange pipeline 112 can be called the primary side cooling water circulation
  • the circulating flow of the coolant on the cooling pipeline 10 can be called the secondary side deionized water or antifreeze circulation
  • the circulating flow of the coolant on the auxiliary pipeline 20 can be called the auxiliary circulation system.
  • a control method of a single-phase cold plate liquid cooling system is as follows:
  • control module 40 controls the first circulation pump 16 and the third circulation pump 1121 to open, and the second circulation pump 17 to close.
  • the control module 40 controls the first switch valve 18 to open, the second switch valve 19 to close, the fifth switch valve 130 and the sixth switch valve 140 to open, the third switch valve 25 and the seventh switch valve 29 to open, and the fourth switch valve 26 and the eighth switch valve 210 to close.
  • the cooling pipeline 10 is in the forward circulation mode, and the coolant flows out of the first water tank 110 and flows through the first circulation pump 16 of the first connecting branch 13, the heat exchange body 111, the first switch valve 18, the sixth switch valve 140 arranged in parallel on the main pipeline 15, the single-phase cold plate 12, and the fifth switch valve 130 in the cooling pipeline 10, and flows back to the first circulation pump 16.
  • the outlet end of the single-phase cold plate 12 flows The small amount of vaporized condensate flows through the seventh switch valve 29 of the fifth connecting branch 27, the vacuum generating device 21, the third water tank 22, the third switch valve 25 of the third connecting branch 23 in sequence, and flows back into the first water tank 110.
  • the data acquisition module 30 collects through the detection component that the pressure difference at both ends of the single-phase cold plate 12 exceeds the preset pressure value, it indicates that the capillary in the single-phase cold plate 12 is blocked, or when the acquisition module 30 collects through the detection component that any one of the conductivity values at both ends of the quick-connect joint is greater than the preset conductivity value, it indicates that electrochemical corrosion has occurred at the quick-connect joint.
  • control module 40 controls the circulation mode of the cooling pipeline 10 to switch from the forward circulation mode to the reverse circulation mode, the control module 40 controls the second circulation pump 17 to open, the first circulation pump 16 to close, the control module 40 controls the first switch valve 18 to close, the second switch valve 19 to open, the third switch valve 25 and the seventh switch valve 29 to close, and the fourth switch valve 26 and the eighth switch valve 210 to open.
  • the coolant flows out from the second water tank 120, and flows in the cooling pipeline 10 in sequence through the second circulation pump 17 of the second connecting branch 14, the heat exchange body 111, the second switch valve 19, the fifth switch valve 130 arranged in parallel on the main pipeline 15, the single-phase cold plate 12, and the sixth switch valve 140, and flows back to the second circulation pump 17.
  • a small amount of vaporized condensate flowing out from the outlet end of the single-phase cold plate 12 flows in sequence through the eighth switch valve 210 of the sixth connecting branch 28, the vacuum generating device 21, the third water tank 22, and the fourth switch valve 26 of the fourth connecting branch 24, and flows back to the second water tank 120.
  • the single-phase cold plate liquid cooling system also includes another control method, which is as follows:
  • control module 40 controls the first circulation pump 16 and the third circulation pump 1121 to open, the second circulation pump 17 to close, the control module 40 controls the first switch valve 18 to open, the second switch valve 19 to close, the fifth switch valve 130 and the sixth switch valve 140 to open, the third switch valve 25 and the seventh switch valve 29 to close, and the fourth switch valve 26 and the eighth switch valve 210 to close.
  • the cooling pipeline 10 is in a forward circulation mode, and the coolant flows out of the first water tank 110, and flows through the first circulation pump 16 of the first connecting branch 13, the heat exchange body 111, the first switch valve 18, the sixth switch valve 140 arranged in parallel on the main pipeline 15, the single-phase cold plate 12, and the fifth switch valve 130 in the cooling pipeline 10, and flows back to the first circulation pump 16. All the coolant flowing out of the outlet of the single-phase cold plate 12 enters and flows back to the first circulation pump 16.
  • the data acquisition module 30 collects through the detection component that the pressure difference at both ends of the single-phase cold plate 12 exceeds the preset pressure value, it indicates that the capillary in the single-phase cold plate 12 is blocked, or when the acquisition module 30 collects through the detection component that any one of the conductivity values at both ends of the quick-connect joint is greater than the preset conductivity value, it indicates that electrochemical corrosion has occurred at the quick-connect joint.
  • the control module 40 controls the circulation mode of the cooling pipeline 10 to switch from the forward circulation mode to the reverse circulation mode, the control module 40 controls the second circulation pump 17 to open, the first circulation pump 16 to close, the control module 40 controls the first switch valve 18 to close, the second switch valve 19 to open, the third switch valve 25 and the seventh switch valve 29 to close, and the first switch valve 27 to close.
  • the fourth switch valve 26 and the eighth switch valve 210 are opened.
  • the coolant flows out of the second water tank 120, and flows through the second circulation pump 17 of the second connecting branch 14, the heat exchange body 111, the second switch valve 19, the fifth switch valve 130 arranged in parallel on the main line 15, the single-phase cold plate 12, and the sixth switch valve 140 in the cooling pipeline 10, and flows back to the second circulation pump 17.
  • a small amount of gasified condensate flowing out of the outlet of the single-phase cold plate 12 flows through the eighth switch valve 210 of the sixth connecting branch 28, the vacuum generating device 21, the third water tank 22, and the fourth switch valve 26 of the fourth connecting branch 24, and flows back to the second water tank 120.
  • the single-phase cold plate liquid cooling system is different from the above-mentioned embodiments in that the auxiliary pipeline 20 does not include the third connecting branch 23 and the fourth connecting branch 24, the third water tank 22 of the single-phase cold plate liquid cooling system is disconnected from the first water tank 110, and the third water tank 22 is disconnected from the second water tank 120.
  • the volume of the third water tank 22 is greater than the sum of the volumes of the first water tank 110 and the second water tank 120.
  • the single-phase cold plate liquid cooling system control method in the present application is applied to the above-mentioned single-phase cold plate liquid cooling system, including: detecting the operating parameters of the cooling pipeline 10 through the detection component; when the detection component detects that the operating parameter exceeds the preset value, the circulation mode of the cooling pipeline 10 is changed, and the auxiliary pipeline 20 is connected to the single-phase cold plate 12 of the cooling pipeline 10.
  • the third water tank 22 is connected to the first water tank 110 through the third connecting branch 23, and the third water tank 22 is connected to the second water tank 120 through the fourth connecting branch 24, so as to realize the recycling of the coolant and save costs.
  • Multiple single-phase cold plates 12 are arranged in parallel, and at least one fifth switch valve 130 and a sixth switch valve 140 are respectively arranged on both sides of at least one single-phase cold plate 12, so as to improve the refrigeration efficiency, and the working state of each single-phase cold plate 12 can be selected, thereby improving the practicality of the single-phase cold plate liquid cooling system.
  • the first circulating pump 16 and the second circulating pump 17 provide power for the flow of coolant in the cooling pipeline 10.
  • the first circulating pump 16 drives the coolant to circulate on the main pipeline 15 and the first connecting branch 13 to realize the forward circulation of the coolant in the cooling pipeline 10.
  • the second circulating pump 17 drives the coolant to circulate on the main pipeline 15 and the second connecting branch 14 to realize the reverse circulation of the coolant in the cooling pipeline 10.

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Abstract

本申请实施例提供了一种单相冷板式液冷系统及其控制方法和电子设备，其中，该单相冷板式液冷系统包括冷却管路、检测组件和辅助管路，冷却管路包括换热器和至少一个单相冷板，换热器与单相冷板相互连通，且冷却管路具有正向循环模式和逆向循环模式；检测组件设置在单相冷板和/或冷却管路的快接接头处以对冷却管路的运行参数进行检测；辅助管路与单相冷板可开闭地连通，且辅助管路具有真空发生装置；当检测组件检测到运行参数超过预设值时，冷却管路的循环模式改变，且辅助管路与单相冷板连通。通过本申请，解决了单相冷板和快接接头处易发生电化学腐蚀和堵塞的问题，进而达到了提高液冷系统的稳定性及维护便捷性的效果。

Description

单相冷板式液冷系统及其控制方法和电子设备
相关申请的交叉引用
本申请要求于2023年6月21日提交中国专利局，申请号为2023107421640，申请名称为“单相冷板式液冷系统及其控制方法和电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及计算机领域，具体而言，涉及一种单相冷板式液冷系统及其控制方法和电子设备。
背景技术
相关技术中，随着国家大数据战略和加快建设数字中国的国家战略落地、云计算、大数据的蓬勃发展，为满足不断增长的大数据的计算力需求，单机柜功率密度越来越高，风冷系统已接近其有效的制冷极限。此时，低PUE、高解热密度的液冷数据中心散热技术应运而生。单相冷板式液冷技术具有运行和维护相对便捷，适合现有风冷数据中心改造的天然优势而占据了液冷技术的主流应用市场。
但是，在单相冷板式液冷技术中，为了提高单相冷板的冷却效率，单相冷板内通常包括平行设置的多条毛细管路，毛细管路极易发生堵塞，导致冷却效率降低，且冷却系统的快接接头通常为金属材质，冷却液在流经快接接头处存在涡流发生区及循环死区，导致快接接头处容易发生电化学腐蚀，这也成为了困扰单相冷板式液冷后期维护的难题。
申请内容
本申请实施例提供了一种单相冷板式液冷系统及其控制方法和电子设备，以至少解决相关技术中冷却液在单相冷板和快接接头处容易发生堵塞或电化学腐蚀的问题。
根据本申请的第一方面，提供了一种单相冷板式液冷系统，包括冷却管路、检测组件和辅助管路，其中，冷却管路包括换热器和至少一个单相冷板，换热器与单相冷板相互连通，且冷却管路具有正向循环模式和逆向循环模式；检测组件设置在单相冷板和/或冷却管路的快接接头处以对冷却管路的运行参数进行检测；辅助管路与单相冷板可开闭地连通，且辅助 管路具有真空发生装置；当检测组件检测到运行参数超过预设值时，冷却管路的循环模式改变，且辅助管路与单相冷板连通。
在一个实施方式中，冷却管路包括第一连接支路和第二连接支路，当冷却管路处于正向循环模式时，单相冷板通过第一连接支路与换热器连通；当冷却管路处于逆向循环模式时，单相冷板通过第二连接支路与换热器连通。
在一个实施方式中，冷却管路还包括主管路，单相冷板通过主管路分别与第一连接支路和第二连接支路选择性连通。
在一个实施方式中，冷却管路还包括第一循环泵和第二循环泵，其中，第一循环泵设置在第一连接支路上，当主管路与第一连接支路连通时，第一循环泵位于换热器的上游；第二循环泵设置在第二连接支路上，当主管路与第二连接支路连通时，第二循环泵位于换热器的上游。
在一个实施方式中，冷却管路还包括第一开关阀和第二开关阀，其中，第一开关阀设置在第一连接支路上，且换热器位于第一循环泵和第一开关阀之间；第二开关阀设置在第二连接支路上，且换热器位于第二循环泵和第二开关阀之间；当冷却管路处于正向循环模式时，第一开关阀打开，第二开关阀关闭；当冷却管路处于逆向循环模式时，第一开关阀关闭，第二开关阀打开。
在一个实施方式中，，冷却管路还包括分别与主管路连通的第一水箱和第二水箱，且第一水箱设置在单相冷板和第一循环泵之间，第二水箱设置在单相冷板和第二循环泵之间。
在一个实施方式中，辅助管路包括第三水箱，第三水箱与真空发生装置远离单相冷板的一端连通。
在一个实施方式中，辅助管路还包括第三连接支路和第四连接支路，其中，第三水箱通过第三连接支路与第一水箱连通；第三水箱通过第四连接支路与第二水箱连通。
在一个实施方式中，辅助管路还包括第三开关阀和第四开关阀，其中，第三开关阀设置在第三连接支路上；第四开关阀设置在第四连接支路上；当冷却管路处于正向循环模式时，第三开关阀打开，第四开关阀关闭；当冷却管路处于逆向循环模式时，第三开关阀关闭，第四开关阀打开。
在一个实施方式中，当单相冷板为多个时，多个单相冷板并联设置，且多个单相冷板均与主管路连接。
在一个实施方式中，冷却管路还包括多个第五开关阀和多个第六开关阀，至少一个单相冷板的两侧分别设置有至少一个第五开关阀和第六开关阀。
在一个实施方式中，当单相冷板为多个时，第五开关阀、第六开关阀和单相冷板的数量相同并一一对应，每个单相冷板的两侧分别设置有一个第五开关阀和一个第六开关阀。
在一个实施方式中，辅助管路包括第五连接支路和第六连接支路，第五连接支路和第六连接支路分别与真空发生装置的同一端连通，且真空发生装置通过第五连接支路和第六连接支路分别与单相冷板的两端连通。
在一个实施方式中，辅助管路还包括第七开关阀和第八开关阀，其中，第七开关阀设置在第五连接支路上；第八开关阀设置在第六连接支路上；当冷却管路处于正向循环模式时，第八开关阀关闭；当冷却管路处于逆向循环模式时，第七开关阀关闭，第八开关阀打开。
在一个实施方式中，单相冷板式液冷系统还包括数据采集模块和控制模块，其中，数据采集模块与检测组件信号连接；控制模块分别与数据采集模块、冷却管路以及辅助管路信号连接，以根据接收的数据采集模块的信息控制冷却管路的循环模式以及辅助管路的开闭。
在一个实施方式中，检测组件包括压力传感器和导电率检测件中的至少一种。
在一个实施方式中，冷却管路还包括多个双向过滤器，每个单相冷板的两端分别设置有至少一个双向过滤器。
在一个实施方式中，冷却管路包括第一连接支路、第二连接支路和主管路，单相冷板通过主管路分别与第一连接支路和第二连接支路选择性连通，冷却管路还包括第一循环泵和第二循环泵，第一循环泵设置在第一连接支路上，当主管路与第一连接支路连通时，第一循环泵位于换热器的上游，第二循环泵设置在第二连接支路上，当主管路与第二连接支路连通时，第二循环泵位于换热器的上游，冷却管路还包括第一开关阀和第二开关阀，第一开关阀设置在第一连接支路上，且换热器位于第一循环泵和第一开关阀之间，第二开关阀设置在第二连接支路上，且换热器位于第二循环泵和第二开关阀之间，冷却管路还包括分别与主管路连通的第一水箱和第二水箱，且第一水箱设置在单相冷板和第一循环泵之间，第二水箱设置在单相冷板和第二循环泵之间，当冷却管路处于正向循环模式时，第一开关阀打开，第二开关阀关闭，第一循环泵将第一水箱中的冷却液抽出；当冷却管路处于逆向循环模式时，第一开关阀关闭，第二开关阀打开，第二循环泵将第二水箱中的冷却液抽出。
根据本申请的第二方面，提供了一种单相冷板式液冷系统控制方法，应用于上述的单相冷板式液冷系统，包括：通过检测组件对冷却管路的运行参数进行检测；当检测组件检测到运行参数超过预设值时，冷却管路的循环模式改变，且辅助管路与冷却管路的单相冷板连通。
根据本申请的第三方面，提供了一种电子设备，包括上述的单相冷板式液冷系统。
应用本申请的技术方案，本申请中的单相冷板式液冷系统包括冷却管路、检测组件和辅助管路，其中，冷却管路包括换热器和至少一个单相冷板，换热器与单相冷板相互连通，且冷却管路具有正向循环模式和逆向循环模式；检测组件设置在单相冷板和/或冷却管路的快接接头处以对冷却管路的运行参数进行检测；辅助管路与单相冷板可开闭地连通，且辅助管路具有真空发生装置；当检测组件检测到运行参数超过预设值时，冷却管路的循环模式改变，且辅助管路与单相冷板连通。
使用本申请中的单相冷板式液冷系统时，由于单相冷板式液冷系统的冷却管路具有正向循环模式和逆向循环模式，例如冷却管路处于正向循环模式进行换热，当冷却液在单相冷板和快接接头处发生电化学腐蚀或者污垢及杂质堵塞液冷系统时，此时检测组件测到的运行参数超过预设值，改变冷却管路的循环模式，且辅助管路与单相冷板连通，因此，通过单相冷板式液冷系统的逆向循环和真空发生装置的抽吸作用，使得单相冷板和快接接头的杂质和污垢被冲出，防止堵塞，并且逆向循环打破涡流旋转方向，在原来的循环死区流入新的冷却液，消除或缓解局部电化学腐蚀。解决了单相冷板和快接接头处易发生电化学腐蚀和堵塞的问题，进而达到了提高液冷系统的稳定性及维护便捷性的效果。
附图说明
图1是根据本申请的单相冷板式液冷系统省略了双向过滤器的系统示意图；
图2是根据图1中的单相冷板式液冷系统省略数据采集模块和控制模块的系统示意图；
图3是根据图1中的单相冷板式液冷系统的单向冷板两端设置有双向过滤器的局部系统示意图。
其中，上述附图包括以下附图标记：
10、冷却管路；11、换热器；111、换热本体；112、换热管路；1121、第三循环泵；
1122、散热末端；12、单相冷板；13、第一连接支路；14、第二连接支路；15、主管路；16、第一循环泵；17、第二循环泵；18、第一开关阀；19、第二开关阀；110、第一水箱；120、第二水箱；130、第五开关阀；140、第六开关阀；150、双向过滤器；
20、辅助管路；21、真空发生装置；22、第三水箱；23、第三连接支路；24、第四连
接支路；25、第三开关阀；26、第四开关阀；27、五连接支路；28、第六连接支路；29、第七开关阀；210、第八开关阀；30、数据采集模块；40、控制模块；2、主板。
具体实施方式
下文中将参考附图并结合实施例来详细说明本申请的实施例。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
为了解决相关技术中冷却液在单相冷板和快接接头处容易发生堵塞或电化学腐蚀的问题，本申请提供了一种单相冷板式液冷系统及其控制方法和电子设备。
并且，本申请中的电子设备包括主板2和下述的单相冷板式液冷系统。
如图1至图3所示，单相冷板式液冷系统包括冷却管路10、检测组件和辅助管路20，其中，冷却管路10包括换热器11和至少一个单相冷板12，换热器11与单相冷板12相互连通，且冷却管路10具有正向循环模式和逆向循环模式；检测组件设置在单相冷板12和冷却管路10的快接接头处以对冷却管路10的运行参数进行检测；辅助管路20与单相冷板12可开闭地连通，且辅助管路20具有真空发生装置21；当检测组件检测到运行参数超过预设值时，冷却管路10的循环模式改变，且辅助管路20与单相冷板12连通。
使用本申请中的单相冷板式液冷系统时，由于单相冷板12式液冷系统的冷却管路10具有正向循环模式和逆向循环模式，例如冷却管路10处于正向循环模式进行换热，当冷却液在单相冷板12和快接接头处发生电化学腐蚀或者污垢及杂质堵塞液冷系统时，此时检测组件测到的运行参数超过预设值，改变冷却管路10的循环模式，且辅助管路20与单相冷板12连通，因此，通过单相冷板12式液冷系统的逆向循环和真空发生装置21的抽吸作用，使得单相冷板12和快接接头的杂质和污垢被冲出，防止堵塞，并且逆向循环打破涡流旋转方向，在原来的循环死区流入新的冷却液，消除或缓解局部电化学腐蚀。解决了单相冷板12和快接接头处易发生电化学腐蚀和堵塞的问题，进而达到了提高液冷系统的稳定性及维护便捷性的效果。
需要说明的是，在本申请中，单相冷板12与主板2的热源连接，用于对主板2进行散热。
优选地，如图2所示，正向循环模式下的冷却水沿顺时针方向进行循环，逆向循环模式下的冷却水沿逆时针方向进行循环。
如图1和图2所示，冷却管路10包括第一连接支路13和第二连接支路14，当冷却管路10处于正向循环模式时，单相冷板12通过第一连接支路13与换热器11连通；当冷却管路10处于逆向循环模式时，单相冷板12通过第二连接支路14与换热器11连通。这样，冷却液通过第一连接支路13流经换热器11的方向与冷却液通过第二连接支路14流经换热器11的方向相反，通过控制单相冷板12与第一连接支路13连通或者单相冷板12与第二连接支路14连通， 从而控制冷却管路10在正向循环模式和逆向循环模式之间尽行切换。
如图1和图2所示，冷却管路10还包括主管路15，单相冷板12通过主管路15分别与第一连接支路13和第二连接支路14选择性连通。这样，当冷却管路10处于正向循环模式时，单相冷板12通过主管路15与第一连接支路13连通，当冷却管路10处于逆向循环模式时，单相冷板12通过主管路15与第二连接支路14连通。也就是说，在本申请中，正向循环模式和逆向循环模式中，不仅冷却水的流动方向不同，而且冷却水的流动路径也不是完全重合的。
如图1和图2所示，冷却管路10还包括第一循环泵16和第二循环泵17，其中，第一循环泵16设置在第一连接支路13上，当主管路15与第一连接支路13连通时，第一循环泵16位于换热器11的上游；第二循环泵17设置在第二连接支路14上，当主管路15与第二连接支路14连通时，第二循环泵17位于换热器11的上游。这样，第一循环泵16和第二循环泵17为冷却管路10内冷却液的流动提供动力，第一循环泵16驱动冷却液在主管路15和第一连接支路13上循环流动，以实现冷却管路10内冷却液的正向循环，第二循环泵17驱动冷却液在主管路15和第二连接支路14上循环流动，以实现冷却管路10内冷却液的逆向循环。
如图1和图2所示，冷却管路10还包括第一开关阀18和第二开关阀19，其中，第一开关阀18设置在第一连接支路13上，且换热器11位于第一循环泵16和第一开关阀18之间；第二开关阀19设置在第二连接支路14上，且换热器11位于第二循环泵17和第二开关阀19之间；当冷却管路10处于正向循环模式时，第一开关阀18打开，第二开关阀19关闭；当冷却管路10处于逆向循环模式时，第一开关阀18关闭，第二开关阀19打开。这样，通过控制第一开关阀18和第二开关阀19的打开和关闭，从而控制主管路15与第一连接支路13或第二连接支路14中的一个支路连通，保证冷却管路10在正向循环模式和逆向循环模式之间进行切换。
如图1和图2所示，冷却管路10还包括分别与主管路15连通的第一水箱110和第二水箱120，且第一水箱110设置在单相冷板12和第一循环泵16之间，第二水箱120设置在单相冷板12和第二循环泵17之间。这样，冷却管路10在正向循环模式下，第一水箱110内储存的冷却液通过第一循环泵16实现冷却液在主管路15和第一连接支路13上循环流动，冷却管路10在逆向循环模式下，第二水箱120内储存的冷却液通过第二循环泵17实现冷却液在主管路15和第二连接支路14上循环流动。
需要说明的是，在本申请中，换热器11包括换热本体111和换热管路112，换热管路112与换热本体111连接，换热管路112用于对换热本体111进行换热，换热管路112包括第三循环泵1121和散热末端1122，其中，冷却液在换热器11上依次循环流经换热本体111、散热末端1122、第三循环泵1121。
优选地，换热管路112中冷却液流经换热本体111的方向与冷却管路10在正向循环模式下冷却液流经换热本体111的方向相反，换热管路112中冷却液流经换热本体111的方向与冷却管路10在逆向循环模式下冷却液流经换热本体111的方向相同。
如图1和图2所示，辅助管路20包括第三水箱22，第三水箱22与真空发生装置21远离单相冷板12的一端连通。这样，单相冷板12内冷却液气化形成的水蒸气通过真空发生装置21的抽吸作用进入第三水箱22内液化储存。
如图1和图2所示，辅助管路20还包括第三连接支路23和第四连接支路24，其中，第三水箱22通过第三连接支路23与第一水箱110连通；第三水箱22通过第四连接支路24与第二水箱120连通。这样，第三水箱22内冷却液可以通过第三连接支路23流入第一水箱110内，或者第三水箱22内冷却液通过第四连接支路24流入第二水箱120内，实现冷却液的循环利用，节约成本。
如图1和图2所示，辅助管路20还包括第三开关阀25和第四开关阀26，其中，第三开关阀25设置在第三连接支路23上；第四开关阀26设置在第四连接支路24上；当冷却管路10处于正向循环模式时，第三开关阀25打开，第四开关阀26关闭；当冷却管路10处于逆向循环模式时，第三开关阀25关闭，第四开关阀26打开。这样，当冷却管路10处于正向循环模式时，第三开关阀25打开，并且第四开关阀26关闭，第三水箱22内的冷却液通过第三连接支路23流入第一水箱110内，当冷却管路10处于逆向循环模式时，第三开关阀25关闭，并且第四开关阀26打开，第三水箱22内的冷却液通过第四连接支路24流入第二水箱120内。
如图1和图2所示，当单相冷板12为多个时，多个单相冷板12并联设置，且多个单相冷板12均与主管路15连接。这样，冷却管路10可以同时对多个并联设置的单相冷板12进行制冷，提高制冷的效率。
如图1和图2所示，冷却管路10还包括多个第五开关阀130和多个第六开关阀140，至少一个单相冷板12的两侧分别设置有至少一个第五开关阀130和第六开关阀140。这样，通过控制第五开关阀130和第六开关阀140的同时打开或者同时关闭，实现控制位于第五开关阀130和第六开关阀140之间的单相冷板12处于制冷工作状态或者非制冷关闭状态，当第五开关阀130和第六开关阀140同时打开时，单相冷板12处于制冷工作状态，当第五开关阀130和第六开关阀140同时关闭时，单相冷板12处于非制冷关闭状态。
如图1和图2所示，当单相冷板12为多个时，第五开关阀130、第六开关阀140和单相冷板12的数量相同并一一对应，每个单相冷板12的两侧分别设置有一个第五开关阀130和一个第六开关阀140。这样，可以根据实际情况来调节第五开关阀130和第六开关阀140的开闭状 态，实现多个单相冷板12中的一部分需要制冷的单相冷板12处于制冷工作状态，一部分不需要制冷的单相冷板12处于非制冷关闭状态。
如图1和图2所示，辅助管路20包括第五连接支路27和第六连接支路28，第五连接支路27和第六连接支路28分别与真空发生装置21的同一端连通，且真空发生装置21通过第五连接支路27和第六连接支路28分别与单相冷板12的两端连通。这样，当冷却管路10处于正向循环模式下，单相冷板12的一端通过第五连接支路27与真空发生装置21连通，当冷却管路10处于逆向循环模式下，单相冷板12的另一端与通过第六连接支路28与真空发生装置21连通。
如图1和图2所示，辅助管路20还包括第七开关阀29和第八开关阀210，其中，第七开关阀29设置在第五连接支路27上；第八开关阀210设置在第六连接支路28上；当冷却管路10处于正向循环模式时，第八开关阀210关闭；当冷却管路10处于逆向循环模式时，第七开关阀29关闭，第八开关阀210打开。这样，冷却管路10在正向循环模式下进行换热，当检测组件测到的运行参数超过预设值时，冷却管路10切换至逆向循环模式，第七开关阀29关闭，第八开关阀210打开，真空发生装置21与单相冷板12的出口端连通，可以对单相冷板12内的污垢及杂质进行抽吸，防止单相冷板12内的毛细管路堵塞。
优选地，当冷却管路10处于正向循环模式时，第七开关阀29打开，第八开关阀210关闭。
如图1所示，单相冷板式液冷系统还包括数据采集模块30和控制模块40，其中，数据采集模块30与检测组件信号连接；控制模块40分别与数据采集模块30、冷却管路10以及辅助管路20信号连接，以根据接收的数据采集模块30的信息控制冷却管路10的循环模式以及辅助管路20的开闭。这样，例如控制模块40控制冷却管路10处于正向循环模式进行换热，当数据采集模块30通过检测组件采集到的运行参数超过预设值时，控制模块40控制冷却管路10切换至逆向循环模式进行换热，同时控制模块40控制辅助管路20打开，此时的冷却管路10处于逆向循环模式进行换热，当数据采集模块30通过检测组件采集到的运行参数再次超过预设值时，控制模块40控制冷却管路10切换至正向循环模式，同时控制模块40控制辅助管路20打开。
需要说明的是，在本申请中，控制模块40分别与冷却管路10的第一循环泵16、第二循环泵17、第一开关阀18、第二开关阀19、第五开关阀130和第六开关阀140信号连接，以及与辅助管路20的第三开关阀25、第四开关阀26、第七开关阀29和第八开关阀210信号连接，以及与换热器11的第三循环泵1121信号连接。
如图1所示，检测组件包括压力传感器和导电率检测件中的至少一种。这样，当压力传感器检测到单相冷板12或冷却管路10的快接接头的入口端与出口端之间的压力差超过预设压力差值时，冷却管路10的循环模式改变，且辅助管路20与单相冷板12连通；或者，当导电率检测件检测到单相冷板12或冷却管路10的快接接头的入口端与出口端的导电率中的至少一个超过预设导电率值时，冷却管路10的循环模式改变，且辅助管路20与单相冷板12连通。
优选地，在本申请中，预设导电率值为10mS/cm。
优选地，压力传感器为多个，其中，每个单相冷板12的两端分别设置有一个压力传感器，数据采集模块30用于采集单相冷板12的两端的两个压力传感器的压力差。
优选地，压力传感器为多个，其中，冷却管路10的每个快接接头两端分别设置有一个压力传感器，数据采集模块30用于采集每个快接接头的两端的两个压力传感器的压力差。
优选地，导电率检测件为多个，其中，每个单相冷板12的两端分别设置有一个导电率检测件，数据采集模块30用于采集单相冷板12的两端的导电率。
优选地，导电率检测件为多个，其中，冷却管路10的每个快接接头两端分别设置有一个导电率检测件，数据采集模块30用于采集每个快接接头的两端的导电率。
需要说明的是，在本申请中，由于单相冷板12内包括平行设置的多条毛细管路，毛细管路的过流面积较小导致其极易在入口处发生堵塞，增加系统的热阻和流阻，表现为热源如CPU的温度偏高或者单相冷板12进出口的压差偏大，且随着时间的推移趋势愈加显著。通过在单相冷板12的两端分别设置有一个压力传感器，当数据采集模块30采集单相冷板12的两端的压力差值大于预设压力差值时，冷却管路10的循环模式改变，且辅助管路20与单相冷板12连通，通过单相冷板式液冷系统的反转和真空发生器的抽吸作用，使得毛细管路入口处的杂质和污垢被冲出而进入双向过滤器150中，防止堵塞，且提高系统的稳定可靠性和系统的维护便捷性。
需要说明的是，在本申请中，由于快接接头为金属材质，冷却液常见为去离子水和防冻液，冷却液在流经快接接头处存在涡流发生区及循环死区，快接接头处容易形成电化学腐蚀集中区域，必然伴随多种金属材质的电化学腐蚀，通过在快接接头的两端分别设置有一个导电率检测件，当数据采集模块30采集快接接头的两端的任意一个导电率值大于预设导电率值时，冷却管路10的循环模式改变，且辅助管路20与单相冷板12连通，通过单相冷板式液冷系统的逆向循环打破涡流旋转方向，在原来的循环死区流入新的冷却液，消除或缓解局部电化学腐蚀。
如图3所示，冷却管路10还包括多个双向过滤器150，每个单相冷板12的两端分别设置有至少一个双向过滤器150。这样，双向过滤器150可以对冷却管路10内流经单相冷板12的冷却液进行双向过滤，无论冷却管路10处于正向循环模式或者逆向循环模式，都可以防止单相冷板12内的毛细管路堵塞。
如图1和图2所示，真空发生装置21是真空发生器。这样，真空发生器的抽吸作用可以使得单相冷板12内的毛细管路入口处的杂质和污垢被冲出，而进入双向过滤器150中被过滤掉。
如图1和图2所示，冷却管路10包括第一连接支路13、第二连接支路14和主管路15，单相冷板12通过主管路15分别与第一连接支路13和第二连接支路14选择性连通，冷却管路10还包括第一循环泵16和第二循环泵17，第一循环泵16设置在第一连接支路13上，当主管路15与第一连接支路13连通时，第一循环泵16位于换热器11的上游，第二循环泵17设置在第二连接支路14上，当主管路15与第二连接支路14连通时，第二循环泵17位于换热器11的上游，冷却管路10还包括第一开关阀18和第二开关阀19，第一开关阀18设置在第一连接支路13上，且换热器11位于第一循环泵16和第一开关阀18之间，第二开关阀19设置在第二连接支路14上，且换热器11位于第二循环泵17和第二开关阀19之间，冷却管路10还包括分别与主管路15连通的第一水箱110和第二水箱120，且第一水箱110设置在单相冷板12和第一循环泵16之间，第二水箱120设置在单相冷板12和第二循环泵17之间，当冷却管路10处于正向循环模式时，第一开关阀18打开，第二开关阀19关闭，第一循环泵16将第一水箱110中的冷却液抽出；当冷却管路10处于逆向循环模式时，第一开关阀18关闭，第二开关阀19打开，第二循环泵17将第二水箱120中的冷却液抽出。
需要说明的是，在本申请中，冷却液在换热本体111及换热管路112一侧的循环流动可以称为一次侧冷却水循环，冷却液在冷却管路10上的循环流动可以称为二次侧去离子水或者防冻液循环，冷却液在辅助管路20上的循环流动可以称为辅助循环系统。
需要说明的是，根据本申请中的实施例，单相冷板式液冷系统的一种控制方法如下：
正常运行时，控制模块40控制第一循环泵16和第三循环泵1121打开，第二循环泵17关闭，控制模块40控制第一开关阀18打开、第二开关阀19关闭，第五开关阀130和第六开关阀140打开，第三开关阀25和第七开关阀29打开，第四开关阀26和第八开关阀210关闭。此时，冷却管路10处于正向循环模式，冷却液从第一水箱110内流出，并在冷却管路10依次流经第一连接支路13的第一循环泵16、换热本体111、第一开关阀18、主管路15上并联设置的第六开关阀140、单相冷板12、第五开关阀130流回至第一循环泵16，单相冷板12出口端流 出的少量的气化后的冷凝液依次流经五连接支路27的第七开关阀29、真空发生装置21、第三水箱22、第三连接支路23的第三开关阀25，流回至第一水箱110内。
当数据采集模块30通过检测组件采集到单相冷板12的两端压力差值超过预设压力值时，说明单相冷板12内的毛细管路发生堵塞，或者当采集模块30通过检测组件采集到快接接头的两端的任意一个导电率值大于预设导电率值时，说明快接接头处发生了电化学腐蚀，上述的两种情况只要发生其中一种，控制模块40控制冷却管路10的循环模式从正向循环模式切换至逆向循环模式，控制模块40控制第二循环泵17打开，第一循环泵16关闭，控制模块40控制第一开关阀18关闭、第二开关阀19打开，第三开关阀25和第七开关阀29关闭，第四开关阀26和第八开关阀210打开。此时，冷却液从第二水箱120内流出，并在冷却管路10依次流经第二连接支路14的第二循环泵17、换热本体111、第二开关阀19、主管路15上并联设置的第五开关阀130、单相冷板12、第六开关阀140流回至第二循环泵17，单相冷板12出口端流出的少量的气化后的冷凝液依次流经第六连接支路28的第八开关阀210、真空发生装置21、第三水箱22、第四连接支路24的第四开关阀26，流回至第二水箱120内。
通过单相冷板式液冷系统的反转和真空发生器的抽吸作用，使得毛细管路入口处的杂质和污垢被冲出而进入双向过滤器150中，防止堵塞，并且逆向循环打破涡流旋转方向，在原来的循环死区流入新的冷却液，消除或缓解局部电化学腐蚀。
当然，单相冷板式液冷系统还包括另外一种控制方法，另外一种控制方法如下：
正常运行时，控制模块40控制第一循环泵16和第三循环泵1121打开，第二循环泵17关闭，控制模块40控制第一开关阀18打开、第二开关阀19关闭，第五开关阀130和第六开关阀140打开，第三开关阀25和第七开关阀29关闭，第四开关阀26和第八开关阀210关闭。此时，冷却管路10处于正向循环模式，冷却液从第一水箱110内流出，并在冷却管路10依次流经第一连接支路13的第一循环泵16、换热本体111、第一开关阀18、主管路15上并联设置的第六开关阀140、单相冷板12、第五开关阀130流回至第一循环泵16。单相冷板12出口端流出的冷却液全部进入流回至第一循环泵16。
当数据采集模块30通过检测组件采集到单相冷板12的两端压力差值超过预设压力值时，说明单相冷板12内的毛细管路发生堵塞，或者当采集模块30通过检测组件采集到快接接头的两端的任意一个导电率值大于预设导电率值时，说明快接接头处发生了电化学腐蚀，上述的两种情况只要发生其中一种，控制模块40控制冷却管路10的循环模式从正向循环模式切换至逆向循环模式，控制模块40控制第二循环泵17打开，第一循环泵16关闭，控制模块40控制第一开关阀18关闭、第二开关阀19打开，第三开关阀25和第七开关阀29关闭，第 四开关阀26和第八开关阀210打开。此时，冷却液从第二水箱120内流出，并在冷却管路10依次流经第二连接支路14的第二循环泵17、换热本体111、第二开关阀19、主管路15上并联设置的第五开关阀130、单相冷板12、第六开关阀140流回至第二循环泵17，单相冷板12出口端流出的少量的气化后的冷凝液依次流经第六连接支路28的第八开关阀210、真空发生装置21、第三水箱22、第四连接支路24的第四开关阀26，流回至第二水箱120内。
通过单相冷板式液冷系统的反转和真空发生器的抽吸作用，使得毛细管路入口处的杂质和污垢被冲出而进入双向过滤器150中，防止堵塞，并且逆向循环打破涡流旋转方向，在原来的循环死区流入新的冷却液，消除或缓解局部电化学腐蚀。
在一具体实施例中，单相冷板式液冷系统其与上述实施例的区别在于：辅助管路20不包括第三连接支路23和第四连接支路24，单相冷板式液冷系统的第三水箱22与第一水箱110之间断开，第三水箱22与第二水箱120之间断开，第三水箱22的容积大于第一水箱110和第二水箱120的容积之和，这样，当冷却管路10处于正向循环模式下，第一水箱110内的冷却液在冷却管路10上进行正向循环流动，当冷却管路10处于逆向循环模式下，第二水箱120内的冷却液在冷却管路10上进行逆向循环流动，当冷却管路10处于正向循环模式或逆向循环模式下，第三水箱22用于储存通过真空发生装置21抽吸进入第三水箱22内的冷却液。
本申请中的单相冷板式液冷系统控制方法，应用于上述的单相冷板式液冷系统，包括：通过检测组件对冷却管路10的运行参数进行检测；当检测组件检测到运行参数超过预设值时，冷却管路10的循环模式改变，且辅助管路20与冷却管路10的单相冷板12连通。
从以上的描述中，可以看出，本申请上述的实施例实现可如下技术效果：
1、当单相冷板12毛细管路内的污垢及杂质堵塞液冷系统时，单相冷板12两端的压力差变大，当大于预设压力差值时，冷却管路10的循环模式改变，且辅助管路20与单相冷板12连通，通过冷却管路10反转循环和真空发生器的抽吸作用，使得毛细管路入口处的杂质和污垢被冲出，防止堵塞，提高液冷系统的稳定可靠性及维护便捷性的效果。
2、当冷却管路10的冷却液与快接接头之间形成的涡流区及循环死区内发生电化学腐蚀时，流经快接接头处的冷却液的导电率增大，当大于预设导电率值时，冷却管路10的循环模式改变，且辅助管路20与单相冷板12连通，通过冷却管路10反转循环和真空发生器的抽吸作用，逆向循环打破涡流旋转方向，在原来的循环死区流入新的冷却液，消除或缓解局部电化学腐蚀。
3、第三水箱22通过第三连接支路23与第一水箱110连通，第三水箱22通过第四连接支路24与第二水箱120连通，实现冷却液的循环利用，节约成本。
4、多个单相冷板12并联设置，至少一个单相冷板12的两侧分别设置有至少一个第五开关阀130和第六开关阀140，提高制冷的效率，并且可以选择每个单相冷板12的工作状态，提高单相冷板式液冷系统的实用性。
5、第一循环泵16和第二循环泵17为冷却管路10内冷却液的流动提供动力，第一循环泵16驱动冷却液在主管路15和第一连接支路13上循环流动，以实现冷却管路10内冷却液的正向循环，第二循环泵17驱动冷却液在主管路15和第二连接支路14上循环流动，以实现冷却管路10内冷却液的逆向循环。
显然，上述所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、工作、器件、组件和/或它们的组合。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施方式能够以除了在这里图示或描述的那些以外的顺序实施。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (21)

  1. 一种单相冷板式液冷系统，其特征在于，包括：
    冷却管路(10)，所述冷却管路(10)包括换热器(11)和至少一个单相冷板(12)，所述换热器(11)与所述单相冷板(12)相互连通，且所述冷却管路(10)具有正向循环模式和逆向循环模式；
    检测组件，所述检测组件设置在所述单相冷板(12)和/或所述冷却管路(10)的快接接头处以对所述冷却管路(10)的运行参数进行检测；
    辅助管路(20)，所述辅助管路(20)与所述单相冷板(12)可开闭地连通，且所述辅助管路(20)具有真空发生装置(21)；
    当所述检测组件检测到所述运行参数超过预设值时，所述冷却管路(10)的循环模式改变，且所述辅助管路(20)与所述单相冷板(12)连通。
  2. 根据权利要求1所述的单相冷板式液冷系统，其特征在于，所述冷却管路(10)包括第一连接支路(13)和第二连接支路(14)，
    当所述冷却管路(10)处于所述正向循环模式时，所述单相冷板(12)通过所述第一连接支路(13)与所述换热器(11)连通；
    当所述冷却管路(10)处于所述逆向循环模式时，所述单相冷板(12)通过所述第二连接支路(14)与所述换热器(11)连通。
  3. 根据权利要求2所述的单相冷板式液冷系统，其特征在于，所述冷却管路(10)还包括主管路(15)，所述单相冷板(12)通过所述主管路(15)分别与所述第一连接支路(13)和所述第二连接支路(14)选择性连通。
  4. 根据权利要求3所述的单相冷板式液冷系统，其特征在于，所述冷却管路(10)还包括：
    第一循环泵(16)，所述第一循环泵(16)设置在所述第一连接支路(13)上，当所述主管路(15)与所述第一连接支路(13)连通时，所述第一循环泵(16)位于所述换热器(11)的上游；
    第二循环泵(17)，所述第二循环泵(17)设置在所述第二连接支路(14)上，当所述主管路(15)与所述第二连接支路(14)连通时，所述第二循环泵(17)位于所述换热器(11)的上游。
  5. 根据权利要求4所述的单相冷板式液冷系统，其特征在于，所述冷却管路(10)还 包括：
    第一开关阀(18)，所述第一开关阀(18)设置在所述第一连接支路(13)上，且所述换热器(11)位于所述第一循环泵(16)和所述第一开关阀(18)之间；
    第二开关阀(19)，所述第二开关阀(19)设置在所述第二连接支路(14)上，且所述换热器(11)位于所述第二循环泵(17)和所述第二开关阀(19)之间；
    当所述冷却管路(10)处于所述正向循环模式时，所述第一开关阀(18)打开，所述第二开关阀(19)关闭；
    当所述冷却管路(10)处于所述逆向循环模式时，所述第一开关阀(18)关闭，所述第二开关阀(19)打开。
  6. 根据权利要求4所述的单相冷板式液冷系统，其特征在于，所述冷却管路(10)还包括分别与所述主管路(15)连通的第一水箱(110)和第二水箱(120)，且所述第一水箱(110)设置在所述单相冷板(12)和所述第一循环泵(16)之间，所述第二水箱(120)设置在所述单相冷板(12)和所述第二循环泵(17)之间。
  7. 根据权利要求6所述的单相冷板式液冷系统，其特征在于，所述辅助管路(20)包括第三水箱(22)，所述第三水箱(22)与所述真空发生装置(21)远离所述单相冷板(12)的一端连通。
  8. 根据权利要求7所述的单相冷板式液冷系统，其特征在于，所述辅助管路(20)还包括：
    第三连接支路(23)，所述第三水箱(22)通过所述第三连接支路(23)与所述第一水箱(110)连通；
    第四连接支路(24)，所述第三水箱(22)通过所述第四连接支路(24)与所述第二水箱(120)连通。
  9. 根据权利要求8所述的单相冷板式液冷系统，其特征在于，所述辅助管路(20)还包括：
    第三开关阀(25)，所述第三开关阀(25)设置在所述第三连接支路(23)上；
    第四开关阀(26)，所述第四开关阀(26)设置在所述第四连接支路(24)上；
    当所述冷却管路(10)处于所述正向循环模式时，所述第三开关阀(25)打开，所述第四开关阀(26)关闭；
    当所述冷却管路(10)处于所述逆向循环模式时，所述第三开关阀(25)关闭，所述第四开关阀(26)打开。
  10. 根据权利要求3所述的单相冷板式液冷系统，其特征在于，当所述单相冷板 (12)为多个时，多个所述单相冷板(12)并联设置，且多个所述单相冷板(12)均与所述主管路(15)连接。
  11. 根据权利要求10所述的单相冷板式液冷系统，其特征在于，所述冷却管路(10)还包括多个第五开关阀(130)和多个第六开关阀(140)，至少一个所述单相冷板(12)的两侧分别设置有至少一个所述第五开关阀(130)和所述第六开关阀(140)。
  12. 根据权利要求11所述的单相冷板式液冷系统，其特征在于，当所述单相冷板(12)为多个时，所述第五开关阀(130)、所述第六开关阀(140)和所述单相冷板(12)的数量相同并一一对应，每个所述单相冷板(12)的两侧分别设置有一个所述第五开关阀(130)和一个所述第六开关阀(140)。
  13. 根据权利要求1至12中任一项所述的单相冷板式液冷系统，其特征在于，所述辅助管路(20)包括第五连接支路(27)和第六连接支路(28)，所述第五连接支路(27)和所述第六连接支路(28)分别与所述真空发生装置(21)的同一端连通，且所述真空发生装置(21)通过所述第五连接支路(27)和所述第六连接支路(28)分别与所述单相冷板(12)的两端连通。
  14. 根据权利要求13所述的单相冷板式液冷系统，其特征在于，所述辅助管路(20)还包括：
    第七开关阀(29)，所述第七开关阀(29)设置在所述第五连接支路(27)上；
    第八开关阀(210)，所述第八开关阀(210)设置在所述第六连接支路(28)上；
    当所述冷却管路(10)处于所述正向循环模式时，所述第八开关阀(210)关闭；
    当所述冷却管路(10)处于所述逆向循环模式时，所述第七开关阀(29)关闭，所述第八开关阀(210)打开。
  15. 根据权利要求1至12中任一项所述的单相冷板式液冷系统，其特征在于，所述单相冷板式液冷系统还包括：
    数据采集模块(30)，所述数据采集模块(30)与所述检测组件信号连接；
    控制模块(40)，所述控制模块(40)分别与所述数据采集模块(30)、所述冷却管路(10)以及所述辅助管路(20)信号连接，以根据接收的所述数据采集模块(30)的信息控制所述冷却管路(10)的循环模式以及所述辅助管路(20)的开闭。
  16. 根据权利要求1至12中任一项所述的单相冷板式液冷系统，其特征在于，所述检测组件包括压力传感器和导电率检测件中的至少一种。
  17. 根据权利要求1至12中任一项所述的单相冷板式液冷系统，其特征在于，所述冷却管路(10)还包括多个双向过滤器(150)，每个所述单相冷板(12)的两端分别设置 有至少一个所述双向过滤器(150)。
  18. 根据权利要求1所述的单相冷板式液冷系统，其特征在于，所述冷却管路(10)包括第一连接支路(13)、第二连接支路(14)和主管路(15)，所述单相冷板(12)通过所述主管路(15)分别与所述第一连接支路(13)和所述第二连接支路(14)选择性连通，所述冷却管路(10)还包括第一循环泵(16)和第二循环泵(17)，所述第一循环泵(16)设置在所述第一连接支路(13)上，当所述主管路(15)与所述第一连接支路(13)连通时，所述第一循环泵(16)位于所述换热器(11)的上游，所述第二循环泵(17)设置在所述第二连接支路(14)上，当所述主管路(15)与所述第二连接支路(14)连通时，所述第二循环泵(17)位于所述换热器(11)的上游，所述冷却管路(10)还包括第一开关阀(18)和第二开关阀(19)，所述第一开关阀(18)设置在所述第一连接支路(13)上，且所述换热器(11)位于所述第一循环泵(16)和所述第一开关阀(18)之间，所述第二开关阀(19)设置在所述第二连接支路(14)上，且所述换热器(11)位于所述第二循环泵(17)和所述第二开关阀(19)之间，所述冷却管路(10)还包括分别与所述主管路(15)连通的第一水箱(110)和第二水箱(120)，且所述第一水箱(110)设置在所述单相冷板(12)和所述第一循环泵(16)之间，所述第二水箱(120)设置在所述单相冷板(12)和所述第二循环泵(17)之间，
    当所述冷却管路(10)处于所述正向循环模式时，所述第一开关阀(18)打开，所述第二开关阀(19)关闭，所述第一循环泵(16)将所述第一水箱(110)中的冷却液抽出；
    当所述冷却管路(10)处于所述逆向循环模式时，所述第一开关阀(18)关闭，所述第二开关阀(19)打开，所述第二循环泵(17)将所述第二水箱(120)中的冷却液抽出。
  19. 根据权利要求1至12中任一项所述的单相冷板式液冷系统，其特征在于，所述真空发生装置(21)是真空发生器。
  20. 一种单相冷板式液冷系统控制方法，其特征在于，应用于权利要求1至19中任一项所述的单相冷板式液冷系统，包括：
    通过检测组件对冷却管路(10)的运行参数进行检测；
    当所述检测组件检测到所述运行参数超过预设值时，所述冷却管路(10)的循环模式改变，且辅助管路(20)与所述冷却管路(10)的单相冷板(12)连通。
  21. 一种电子设备，其特征在于，包括权利要求1至19中任一项所述的单相冷板式液冷系统。
PCT/CN2023/139594 2023-06-21 2023-12-18 单相冷板式液冷系统及其控制方法和电子设备 Ceased WO2024259921A1 (zh)

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