WO2025200541A1 - 液冷循环供液系统及液冷循环供液方法 - Google Patents
液冷循环供液系统及液冷循环供液方法Info
- Publication number
- WO2025200541A1 WO2025200541A1 PCT/CN2024/136172 CN2024136172W WO2025200541A1 WO 2025200541 A1 WO2025200541 A1 WO 2025200541A1 CN 2024136172 W CN2024136172 W CN 2024136172W WO 2025200541 A1 WO2025200541 A1 WO 2025200541A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- negative pressure
- liquid
- circulation
- liquid supply
- pressure
- 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.)
- Pending
Links
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
- H05K7/20781—Liquid cooling without phase change within cabinets for removing heat from server blades
-
- 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
- H05K7/20836—Thermal management, e.g. server temperature control
Definitions
- Liquid cooling technology which can solve the heat dissipation problem of higher heat flux density and has higher energy efficiency, has emerged and has flourished in recent years.
- the commonly used chip-level liquid cooling technologies are immersion liquid cooling and cold plate liquid cooling.
- immersion liquid cooling is used on a smaller scale due to its high cost and difficult maintenance.
- Cold plate liquid cooling uses a pump to drive the coolant (water, ethylene glycol, etc.) through the flow channel on the back of the chip. The coolant exchanges heat with the chip through the plate wall in the channel to remove the heat from the chip, thereby achieving the purpose of heat dissipation.
- the cold plate liquid cooling method has the advantages of mature technology, energy saving and noise reduction, and is therefore widely used.
- the negative pressure cooling system in related technologies usually has many internal components and a complex structure, which makes component maintenance extremely difficult during actual use; and it only relies on the vacuum pump to provide constant suction force to adjust the liquid supply pressure and flow, which has many limitations in actual use; in addition, if a component fails, the entire system will not be able to operate, and the system reliability is poor.
- a liquid cooling circulation liquid supply system including: a basic circulation liquid supply device, including a heat exchanger and a circulation pump connected by a pipeline; a negative pressure circulation liquid supply device, including a liquid tank and a negative pressure generating component connected by a pipeline, the negative pressure generating component is used to adjust the pressure in the accommodating chamber inside the liquid tank to negative pressure; a switching component is used to control the connection and disconnection between the basic circulation liquid supply device and the negative pressure circulation liquid supply device; wherein, the liquid cooling circulation liquid supply system has a basic circulation mode and a negative pressure circulation mode, in the basic circulation mode, the switching component disconnects the connection between the basic circulation liquid supply device and the negative pressure circulation liquid supply device, and the circulation pump drives the coolant to circulate heat at positive pressure along the pipeline between the position to be cooled and the heat exchanger; in the negative pressure circulation mode, the switching component connects the basic circulation liquid supply device and the negative pressure circulation liquid supply device, and the negative pressure generating component
- the pressure in the first liquid tank is a first negative pressure
- the pressure in the second liquid tank is a second negative pressure
- the first negative pressure is less than the second negative pressure
- the second negative pressure is less than or equal to the external air pressure
- the heat exchanger and the position to be cooled are connected between the first liquid tank and the second liquid tank through a pipeline, and the coolant enters the first liquid tank from the second liquid tank through the pressure difference between the first negative pressure and the second negative pressure.
- the negative pressure circulation liquid supply device also includes a liquid level gauge, which is used to detect the liquid level of the coolant in the accommodating chamber; when the liquid level gauge detects that the liquid level in the first liquid tank exceeds a set height, the first negative pressure is controlled to be greater than the second negative pressure, and the first negative pressure is less than or equal to the external air pressure, so that the coolant enters the second liquid tank from the first liquid tank.
- a liquid level gauge which is used to detect the liquid level of the coolant in the accommodating chamber; when the liquid level gauge detects that the liquid level in the first liquid tank exceeds a set height, the first negative pressure is controlled to be greater than the second negative pressure, and the first negative pressure is less than or equal to the external air pressure, so that the coolant enters the second liquid tank from the first liquid tank.
- the first negative pressure is less than the second negative pressure, and the second negative pressure is less than or equal to the external air pressure, the second switch valve and the fifth switch valve are in the open state, and the first switch valve, the third switch valve and the fourth switch valve are in the closed state;
- the coolant enters the pipeline at the other end of the first switch valve from the second liquid tank and the second output pipeline, and passes through the heat exchanger, the position to be cooled, the pipeline at one end of the first switch valve and the first input pipe in sequence to enter the first liquid tank; or, in the negative pressure circulation mode, the first negative pressure is greater than the second negative pressure, and the first negative pressure is less than or equal to the external air pressure, the third switch valve and the fourth switch valve are in the open state, and the first switch valve, the second switch valve and the fifth switch valve are in the closed state; the coolant enters the pipeline at the other end of the first switch valve from the first liquid tank and the first output pipeline, and passes through the heat exchanger, the position to be cooled
- the basic circulating liquid supply device also includes: a filter, an outlet pressure sensor, an outlet temperature sensor, a first solenoid valve, a first flow valve, a bypass branch, a second solenoid valve and a second flow valve; the outlet of the heat exchanger, the circulating pump, the filter, the first flow valve, the outlet temperature sensor, the outlet pressure sensor, the first solenoid valve, and the inlet of the position to be cooled are connected in sequence through pipelines; the outlet pressure sensor is used to detect the pressure of the coolant at the outlet of the pipeline to obtain the outlet pressure; the first solenoid valve is used to control the on-off of the pipeline of the basic circulating liquid supply device, and the first flow valve is used to adjust the pipeline flow of the basic circulating liquid supply device; the bypass branch is arranged in parallel with the position to be cooled for diverting the flow to the position to be cooled; the second solenoid valve and the second flow valve are arranged on the bypass branch in sequence, the second solenoid valve is used to control the on-off of
- the heat exchanger has a basic circulation pipeline and a circulation heat exchange pipeline arranged at intervals, and the basic circulation pipeline is connected to the circulation pump;
- the liquid cooling circulation supply system also includes a circulation heat exchange device, the circulation heat exchange device includes a heat exchange source for exchanging heat with the external environment, an on-off valve for controlling the on-off of the pipeline, a circulation filter, a first circulation temperature sensor and a second circulation temperature sensor, one end of the heat exchange source, the first circulation temperature sensor, the on-off valve, and one end of the circulation heat exchange pipeline are connected in sequence through the pipeline; the other end of the circulation heat exchange pipeline, the circulation filter, the second circulation temperature sensor, and the other end of the heat exchange source are connected in sequence through the pipeline; the heat exchange source exchanges heat with the basic circulation pipeline through the circulation heat exchange pipeline.
- the hydraulic control step also includes a repetition step: when the absolute value of the actual error is equal to the first error or less than or equal to the second error, if the previous step of the repetition step is a self-adjusting correction factor control step or a closed-loop control step, the step before the repetition step is repeated to adjust the outlet pressure; if there is no self-adjusting correction factor control step and closed-loop control step before the repetition step, the status quo is maintained.
- the negative pressure circulation liquid supply device 20 further includes a liquid level gauge for detecting the liquid level of the coolant in the accommodating chamber.
- a liquid level gauge for detecting the liquid level of the coolant in the accommodating chamber.
- the first negative pressure is controlled to be greater than the second negative pressure, and the first negative pressure is controlled to be less than or equal to the external air pressure, so that the coolant flows from the first liquid tank 21 into the second liquid tank 22.
- first connecting valve 28 and the second connecting valve 29 By providing the first connecting valve 28 and the second connecting valve 29 , it is ensured that the first liquid tank 21 and the second liquid tank 22 are connected to the external atmosphere in an openable and shuttable manner, thereby providing structural and functional support for the internal air pressure changes of the first liquid tank 21 and the second liquid tank 22 .
- the basic circulating liquid supply device 10 further includes: a filter 13, an outlet pressure sensor 14, an outlet temperature sensor 15, a first solenoid valve 16, a first flow valve 17, a bypass branch 18, a second solenoid valve 181 and a second flow valve 182; the outlet of the heat exchanger 11, the circulating pump 12, the filter 13, the first flow valve 17, the outlet temperature sensor 15, the outlet pressure sensor 14, the first solenoid valve 16, and the inlet of the position to be cooled 40 are connected in sequence through pipelines; the outlet pressure sensor 14 is used to detect the pressure of the coolant at the outlet of the pipeline to obtain the outlet pressure; the first solenoid valve 16 is used to control the on-off of the pipeline of the basic circulating liquid supply device 10, and the first flow valve 17 is used to adjust the pipeline flow of the basic circulating liquid supply device 10; the bypass branch 18 is arranged in parallel with the position to be cooled 40, and is used to divert the flow to the position to be cooled 40; the second solenoid valve 181 and the second flow valve 182 are
- This arrangement not only ensures the working reliability of the basic circulating liquid supply device, but also simplifies the structure of the basic circulating liquid supply device, making it easier to assemble and subsequently maintain; by setting the bypass branch 18, the coolant diversion for the position to be cooled 40 is achieved, thereby achieving flow control at the position to be cooled 40.
- the heat exchange efficiency between the heat exchanger 11 and the outside is further improved, thereby improving the overall heat exchange effect of the liquid-cooling circulating liquid supply system.
- This arrangement completes the design of the method of utilizing the pressure difference working process of the negative pressure system and ensures that the negative pressure circulation liquid supply device 20 works reliably.
- the liquid cooling circulation supply method also includes a hydraulic control step; detecting the pressure of the coolant at the pipeline outlet to obtain the outlet pressure, comparing the outlet pressure with the outlet pressure set value, and controlling the circulation pump 12 and/or the negative pressure generating component 23 to work together to adjust the outlet pressure.
- the hydraulic control step includes a self-adjusting correction factor control step and a closed-loop control step; the outlet pressure is compared with the outlet pressure setting value to calculate the actual error, and when the absolute value of the actual error is greater than the first error, the self-adjusting correction factor control step is executed to adjust the outlet pressure; when the absolute value of the actual error is less than the first error and greater than the second error, the closed-loop control step is executed to adjust the outlet pressure.
- the selection of the first error Eb is flexibly selected based on the staff's experience and the accuracy required for the actual outlet pressure of the system; the proportional coefficient Ku is also set based on experience; and the same applies to the settings of ⁇ 0 , ⁇ and ⁇ s.
- the closed-loop control step adopts the logic of the PID control step; the selection of the proportional coefficient Kp, the integral coefficient Ki, and the differential coefficient Kd usually needs to be determined through debugging and optimization. Generally speaking, the selection of these three coefficients needs to consider factors such as the dynamic characteristics, stability, and response speed of the system;
- the proportional coefficient Kp (i.e. P) is usually used to adjust the static error of the system. Its selection needs to be determined based on the static characteristics of the system. If the static error of the system is large, the proportional coefficient needs to be increased to increase the control strength, otherwise the proportional coefficient needs to be reduced.
- the previous step of the repeated step is a self-adjusting correction factor control step or a closed-loop control step
- —E— Eb or —E— ⁇ Ea
- U u0
- Ea is the second error
- E is the actual error
- Eb is the first error
- u0 is the self-adjusting correction factor control step or the closed-loop control step before the repeated step.
- Step 1 Get the outlet pressure setting value P1;
- Step 4 If the pressure difference between P1 and P2 is above 5Kpa, adjust the speed of the circulating pump 12 to adjust the outlet pressure P2; when P1>P2, reduce the speed of the circulating pump 12 by 2%, and then compare P1 and P2. If the outlet pressure P2 is equal to the outlet pressure setting value P1, the adjustment is completed, wait for 3S and return to step 1, otherwise return to step 3; when P1 ⁇ P2, increase the speed of the circulating pump 12 by 2%, and then compare P1 and P2. If the outlet pressure P2 is equal to the outlet pressure setting value P1, the adjustment is completed, wait for 3S and return to step 1, otherwise return to step 3.
- the circulation pump 12 in the basic circulation liquid supply device 10 fails, the system alarms and prompts the operation and maintenance personnel to perform maintenance; the system still uses the negative pressure circulation liquid supply device 20 or the basic circulation liquid supply device 10 to cooperate with the working mode (for example: negative pressure circulation mode), and the outlet pressure regulation relies on the first solenoid valve 16 and the first flow valve 17 for regulation.
- the working mode for example: negative pressure circulation mode
- the liquid cooling circulation liquid supply system can still operate normally, thereby improving the working reliability of the system; the present application can greatly reduce the difficulty of system maintenance and installation deployment, reduce operation and maintenance costs, and is suitable for large-scale promotion and use; the liquid cooling circulation liquid supply system proposed in the present application can be subsequently combined with related liquid cooling circulation liquid supply methods, which can not only effectively solve the problem that the related negative pressure liquid cooling system is usually unable to adjust the pressure, but also improve the system's dynamic response speed to the coolant outlet pressure by adopting a self-adjusting correction factor control step and a closed-loop control step, which has good use effect and high safety, and can effectively avoid the problem of coolant leakage.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
10、基础循环供液装置;11、换热器;12、循环泵;13、过滤器;14、出口压力传感
器;15、出口温度传感器;16、第一电磁阀;17、第一流量阀;18、旁通支路;181、第二电磁阀;182、第二流量阀;20、负压循环供液装置;21、第一液体箱;22、第二液体箱;23、负压发生组件;24、第一输入管;25、第一输出管;26、第二输入管;27、第二输出管;28、第一连通阀;29、第二连通阀;30、切换组件;31、第一开关阀;32、第二开关阀;33、第三开关阀;34、第四开关阀;35、第五开关阀;40、待冷却位置;50、循环换热设备;51、换热源;52、通断阀;53、循环过滤器;54、第一循环温度传感器;55、第二循环温度传感器。
U=Kp【e(k)-e(k-1)】+Ki e(k)+Kd【e(k)-2e(k-1)+e(k-2)】,
Claims (21)
- 一种液冷循环供液系统,其特征在于,包括:基础循环供液装置(10),包括通过管路连通的换热器(11)和循环泵(12);负压循环供液装置(20),包括通过管路连通的液体箱和负压发生组件(23),所述负压发生组件(23)被配置为调节所述液体箱内部的容纳腔内的压力为负压;切换组件(30),被配置为控制所述基础循环供液装置(10)和所述负压循环供液装置(20)之间的通断;其中,所述液冷循环供液系统具有基础循环模式和负压循环模式,在所述基础循环模式下,所述切换组件(30)断开所述基础循环供液装置(10)和所述负压循环供液装置(20)之间的连通,所述循环泵(12)驱动冷却液在待冷却位置(40)和所述换热器(11)之间沿管路以正压力循环换热;在所述负压循环模式下,所述切换组件(30)连通所述基础循环供液装置(10)和所述负压循环供液装置(20),所述负压发生组件(23)驱动所述冷却液在所述待冷却位置(40)和所述换热器(11)之间沿管路以负压力循环换热。
- 根据权利要求1所述的液冷循环供液系统,其特征在于,在所述负压循环模式下,所述负压发生组件(23)和所述循环泵(12)同时驱动所述冷却液在所述待冷却位置(40)和所述换热器(11)之间沿管路以负压力循环换热。
- 根据权利要求1所述的液冷循环供液系统,其特征在于,所述液体箱为两个,分别为第一液体箱(21)和第二液体箱(22),所述第一液体箱(21)和所述第二液体箱(22)分别与所述负压发生组件(23)通过管路连通;通过控制所述第一液体箱(21)内的压强和所述第二液体箱(22)内的压强的变化,控制所述冷却液往复流动。
- 根据权利要求3所述的液冷循环供液系统,其特征在于,所述第一液体箱(21)内的压强为第一负压,所述第二液体箱(22)内的压强为第二负压;在所述第一液体箱(21)内的液位高度不超过设定高度时,所述第一负压小于所述第二负压,且所述第二负压小于等于外部气压;所述换热器(11)、所述待冷却位置(40)通过管路连通在所述第一液体箱(21)和所述第二液体箱(22)之间,通过所述第一负压与所述第二负压之间的压差,所述冷却液从所述第二液体箱(22)进入所述第一液体箱(21)。
- 根据权利要求4所述的液冷循环供液系统,其特征在于,所述负压循环供液装置(20)还包括液位计,所述液位计被配置为检测所述容纳腔内所述冷却液的液位高度;在所述液位计检测所述第一液体箱(21)内的液位高度超过设定高度时,控制所述第一负压大于所述第二负压,且所述第一负压小于等于外部气压,以使所述冷却液从所述第一液体箱(21)进入所述第二液体箱(22)。
- 根据权利要求5所述的液冷循环供液系统,其特征在于,所述切换组件(30)包括第一开关阀(31)、第二开关阀(32)、第三开关阀(33)、第四开关阀(34)和第五开关阀(35);所述第一开关阀(31)设置在所述基础循环供液装置(10)中的循环管路上,被配置为控制所述基础循环供液装置(10)循环管路的通断;所述负压循环供液装置(20)还包括第一输入管(24)、第一输出管(25)、第二输入管(26)和第二输出管(27);所述第一输入管(24)的一端和所述第一输出管(25)的一端分别与所述第一液体箱(21)连通,所述第二开关阀(32)设置在所述第一输入管(24)上,所述第三开关阀(33)设置在所述第一输出管(25)上;所述第二输入管(26)的一端和所述第二输出管(27)的一端分别与所述第二液体箱(22)连通,所述第四开关阀(34)设置在所述第二输入管(26)上,所述第五开关阀(35)设置在所述第二输出管(27)上;所述第一输入管(24)的另一端与所述第二输入管(26)的另一端分别与所述第一开关阀(31)一端的管路连通,所述第一输出管(25)的另一端与所述第二输出管(27)的另一端分别与所述第一开关阀(31)另一端的管路连通;其中,在所述基础循环模式下,所述第二开关阀(32)、所述第三开关阀(33)、所述第四开关阀(34)和所述第五开关阀(35)均处于关闭状态,所述第一开关阀(31)打开,以使所述基础循环供液装置(10)和所述负压循环供液装置(20)之间断开连接。
- 根据权利要求6所述的液冷循环供液系统,其特征在于,在所述负压循环模式下,所述第一负压小于所述第二负压,且所述第二负压小于等于外部气压,所述第二开关阀(32)和所述第五开关阀(35)处于开启状态,所述第一开关阀(31)、所述第三开关阀(33)和所述第四开关阀(34)处于关闭状态;所述冷却液从所述第二液体箱(22)、所述第二输出管(27)进入所述第一开关阀(31)另一端的管路内,依次经过所述换热器(11)、所述待冷却位置(40)、所述第一开关阀(31)一端的管路和所述第一输入管(24)进入所述第一液体箱(21)内;或者,在所述负压循环模式下,所述第一负压大于所述第二负压,且所述第一负压小于等于外部气压,所述第三开关阀(33)和所述第四开关阀(34)处于开启状态,所述第一开关阀(31)、所述第二开关阀(32)和所述第五开关阀(35)处于关闭状态;所述冷却液从所述第一液体箱(21)、所述第一输出管(25)进入所述第一开关阀(31)另一端的管路内,依次经过所述换热器(11)、所述待冷却位置(40)、所述第一开关阀(31)一端的管路和所述第二输入管(26)进入所述第二液体箱(22)内。
- 根据权利要求3所述的液冷循环供液系统,其特征在于,所述负压循环供液装置(20)还包括第一连通阀(28)和第二连通阀(29),所述第一连通阀(28)的一端通过管路与所述第一液体箱(21)的所述容纳腔连通,另一端与外部大气连通;所述第二连通阀(29)的一端通过管路与所述第二液体箱(22)的所述容纳腔连通,另一端与外部大气连通;所述负压发生组件(23)分别可通断地与所述第一液体箱(21)和所述第二液体箱(22)的所述容纳腔连通。
- 根据权利要求1所述的液冷循环供液系统,其特征在于,所述基础循环供液装置(10)还包括:过滤器(13)、出口压力传感器(14)、出口温度传感器(15)、第一电磁阀(16)、第一流量阀(17)、旁通支路(18)、第二电磁阀(181)和第二流量阀(182);所述换热器(11)的出口、所述循环泵(12)、所述过滤器(13)、所述第一流量阀(17)、所述出口温度传感器(15)、所述出口压力传感器(14)、所述第一电磁阀(16)、所述待冷却位置(40)的入口通过管路依次连通;所述出口压力传感器(14)被配置为检测管路出口处所述冷却液的压力,得到出口压力;所述第一电磁阀(16)被配置为控制所述基础循环供液装置(10)的管路通断,所述第一流量阀(17)被配置为调节所述基础循环供液装置(10)的管路流量;所述旁通支路(18)与所述待冷却位置(40)并联设置,被配置为对所述待冷却位置(40)进行分流;所述第二电磁阀(181)和所述第二流量阀(182)依次设置在所述旁通支路(18)上,所述第二电磁阀(181)被配置为控制所述旁通支路(18)的通断,所述第二流量阀(182)被配置为调节所述旁通支路(18)的流量;所述待冷却位置(40)的出口与所述切换组件(30)、所述换热器(11)的入口通过管路连通,以使所述冷却液循环流动。
- 根据权利要求1所述的液冷循环供液系统,其特征在于,所述换热器(11)内部具有间隔设置的基础循环管路和循环换热管路,所述基础循环管路与所述循环泵(12)连通;所述液冷循环供液系统还包括循环换热设备(50),所述循环换热设备(50)包括被配置为与外部环境进行换热的换热源(51)、被配置为控制管路通断的通断阀(52)、循环过滤器(53)、第一循环温度传感器(54)和第二循环温度传感器(55),所述换热源(51)的一端、所述第一循环温度传感器(54)、所述通断阀(52)、所述循环换热管路的一端通过管路依次连通;所述循环换热管路的另一端、所述循环过滤器(53)、所述第二循环温度传感器(55)、所述换热源(51)的另一端通过管路依次连通;所述换热源(51)通过所述循环换热管路与所述基础循环管路进行换热。
- 根据权利要求1所述的液冷循环供液系统,其特征在于,所述液冷循环供液系统还包括中央控制终端和被配置为检测所述负压循环供液装置(20)所处位置海拔高度的海拔高度传感器,所述海拔高度传感器与所述中央控制终端电连接,所述中央控制终端根据所述海拔高度传感器检测得出的海拔高度,计算得出外部环境大气压;所述液冷循环供液系统还包括报警器和出口压力传感器(14),所述报警器与所述中央控制终端电连接,被配置为发出报警信息;所述出口压力传感器(14)设置在管路的出口处,且与所述中央控制终端电连接;所述出口压力传感器(14)被配置为检测出口压力;所述循环泵(12)、所述负压发生组件(23)分别与所述中央控制终端电连接,所述中央控制终端根据所述出口压力、计算得出的所述外部环境大气压和出口压力设定值控制所述循环泵(12)、所述负压发生组件(23)配合工作。
- 一种液冷循环供液方法,其特征在于,所述液冷循环供液方法应用于权利要求1至11任一项所述的液冷循环供液系统;所述液冷循环供液方法包括:基础循环供液步骤:利用所述循环泵(12)驱动所述冷却液在所述待冷却位置(40)和所述换热器(11)之间以正压力循环换热;负压循环供液步骤;利用所述负压发生组件(23)和/或所述循环泵(12)驱动所述冷却液在所述待冷却位置(40)和所述换热器(11)之间沿管路以负压力循环换热。
- 根据权利要求12所述的液冷循环供液方法,其特征在于,所述液体箱为两个,分别为第一液体箱(21)和第二液体箱(22),所述第一液体箱(21)和所述第二液体箱(22)分别与所述负压发生组件(23)通过管路连通;所述第一液体箱(21)内的压强为第一负压,所述第二液体箱(22)内的压强为第二负压;所述负压循环供液步骤还包括负压切换步骤:先控制所述第一负压小于所述第二负压,且所述第二负压小于等于外部气压,以使所述冷却液从所述第二液体箱(22)进入所述第一液体箱(21);检测所述第一液体箱(21)内的液位高度,在其超过设定高度时,控制所述第一负压大于所述第二负压,且所述第一负压小于等于所述外部气压,以使所述冷却液从所述第一液体箱(21)进入所述第二液体箱(22)。
- 根据权利要求13所述的液冷循环供液方法,其特征在于,所述外部气压Po按照如下计算公式进行计算:Po=P0*【1-(0.0065*H)/288.15】5.255;其中,P0为标准大气压,H为所述负压循环供液装置(20)所处位置的海拔高度。
- 根据权利要求12所述的液冷循环供液方法,其特征在于,所述液冷循环供液方法还包括液压控制步骤;检测管路出口处所述冷却液的压力,得到出口压力,将所述出口压力与出口压力设定值相比较,控制所述循环泵(12)和/或所述负压发生组件(23)配合工作,以调节所述出口压力。
- 根据权利要求15所述的液冷循环供液方法,其特征在于,所述液压控制步骤包括自调整修正因子控制步骤和闭环控制步骤;将所述出口压力与出口压力设定值相比较,计算得到实际误差,在所述实际误差的绝对值大于第一误差时,执行自调整修正因子控制步骤调节所述出口压力;在所述实际误差的绝对值小于所述第一误差大于第二误差时,执行闭环控制步骤调节所述出口压力。
- 根据权利要求16所述的液冷循环供液方法,其特征在于,所述自调整修正因子控制步骤包括:当︱E︱>Eb时,U=-Ku【αE+(1-α)EC】,根据U的大小调节所述循环泵(12)和/或所述负压发生组件(23)的功率大小;其中,E为实际误差,Eb为第一误差,Ku为比例系数,α=(αs-α0)︱E︱/N+α0,0<α0<α<αs<1,设置E、EC和U的论域为(-N,...,-1,0,1,...,N),N=20。
- 根据权利要求16所述的液冷循环供液方法,其特征在于,所述闭环控制步骤包括:当Ea<︱E︱<Eb时,U=Kp【e(k)-e(k-1)】+Ki e(k)+Kd【e(k)-2e(k-1)+e(k-2)】,根据U的大小调节所述循环泵(12)和/或所述负压发生组件(23)的功率大小;其中,Ea为第二误差,E为实际误差,Eb为第一误差,Kp为比例系数,Ki为积分系数,Kd为微分系数,e(k)为第k次采样时的实际误差。
- 根据权利要求16所述的液冷循环供液方法,其特征在于,所述液压控制步骤还包括重复步骤:在所述实际误差的绝对值等于所述第一误差或者小于等于所述第二误差时,如果所述重复步骤的前一个步骤为所述自调整修正因子控制步骤或所述闭环控制步骤,重复执行所述重复步骤之前的步骤,以调节所述出口压力;如果所述重复步骤之前不具有所述自调整修正因子控制步骤和所述闭环控制步骤,维持现状。
- 根据权利要求19所述的液冷循环供液方法,其特征在于,当所述重复步骤的前一个步骤为所述自调整修正因子控制步骤或所述闭环控制步骤,且︱E︱=Eb或者︱E︱≤Ea时,U=u0,其中,Ea为第二误差,E为实际误差,Eb为第一误差,u0为重复步骤之前的自调整修正因子控制步骤或闭环控制步骤。
- 根据权利要求12所述的液冷循环供液方法,其特征在于,所述液冷循环供液方法还包括故障控制步骤:当检测到所述负压循环供液装置(20)发生故障时,发出报警信息,并切换所述液冷循环供液系统按照所述基础循环模式工作;当检测到所述基础循环供液装置(10)中的所述循环泵(12)发生故障时,发出报警信息,切换所述液冷循环供液系统按照所述负压循环模式工作。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24932998.8A EP4716392A1 (en) | 2024-03-29 | 2024-12-02 | Circulating liquid supply system for liquid cooling and circulating liquid supply method for liquid cooling |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410376228.4 | 2024-03-29 | ||
| CN202410376228.4A CN117979661B (zh) | 2024-03-29 | 2024-03-29 | 液冷循环供液系统及液冷循环供液方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025200541A1 true WO2025200541A1 (zh) | 2025-10-02 |
Family
ID=90853948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2024/136172 Pending WO2025200541A1 (zh) | 2024-03-29 | 2024-12-02 | 液冷循环供液系统及液冷循环供液方法 |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4716392A1 (zh) |
| CN (1) | CN117979661B (zh) |
| WO (1) | WO2025200541A1 (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117979661B (zh) * | 2024-03-29 | 2024-06-07 | 苏州元脑智能科技有限公司 | 液冷循环供液系统及液冷循环供液方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114051356A (zh) * | 2021-09-30 | 2022-02-15 | 苏州浪潮智能科技有限公司 | 负压液冷系统 |
| CN116419548A (zh) * | 2023-04-17 | 2023-07-11 | 新华三技术有限公司 | 负压cdu液冷处理系统、方法及网络设备 |
| WO2023173622A1 (zh) * | 2022-03-18 | 2023-09-21 | 苏州浪潮智能科技有限公司 | 平稳切换负压液冷系统和平稳切换负压液冷控制方法 |
| CN117739593A (zh) * | 2023-11-03 | 2024-03-22 | 云南驰宏锌锗股份有限公司 | 一种负压冷却系统的调试方法 |
| CN117979661A (zh) * | 2024-03-29 | 2024-05-03 | 苏州元脑智能科技有限公司 | 液冷循环供液系统及液冷循环供液方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005043666A1 (en) * | 2003-11-03 | 2005-05-12 | Greenlight Power Technologies, Inc. | An electrochemical cell cooling system |
| CN110631325B (zh) * | 2019-10-24 | 2024-04-09 | 四川阿尔西制冷工程技术有限公司 | 风冷液冷综合环控系统 |
| CN115407848B (zh) * | 2022-10-31 | 2023-03-24 | 苏州浪潮智能科技有限公司 | 一种服务器的液冷散热系统、控制方法、装置及设备 |
| CN116154585A (zh) * | 2022-11-21 | 2023-05-23 | 湖南高涵热管理技术有限公司 | 一种冷却系统及冷却方法 |
| CN220156921U (zh) * | 2023-06-13 | 2023-12-08 | 无锡雪鸥移动空调有限公司 | 蓄冷式液冷空调综合保障设备的液冷装置 |
-
2024
- 2024-03-29 CN CN202410376228.4A patent/CN117979661B/zh active Active
- 2024-12-02 EP EP24932998.8A patent/EP4716392A1/en active Pending
- 2024-12-02 WO PCT/CN2024/136172 patent/WO2025200541A1/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114051356A (zh) * | 2021-09-30 | 2022-02-15 | 苏州浪潮智能科技有限公司 | 负压液冷系统 |
| WO2023173622A1 (zh) * | 2022-03-18 | 2023-09-21 | 苏州浪潮智能科技有限公司 | 平稳切换负压液冷系统和平稳切换负压液冷控制方法 |
| CN116419548A (zh) * | 2023-04-17 | 2023-07-11 | 新华三技术有限公司 | 负压cdu液冷处理系统、方法及网络设备 |
| CN117739593A (zh) * | 2023-11-03 | 2024-03-22 | 云南驰宏锌锗股份有限公司 | 一种负压冷却系统的调试方法 |
| CN117979661A (zh) * | 2024-03-29 | 2024-05-03 | 苏州元脑智能科技有限公司 | 液冷循环供液系统及液冷循环供液方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4716392A1 (en) | 2026-03-25 |
| CN117979661B (zh) | 2024-06-07 |
| CN117979661A (zh) | 2024-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2024031900A1 (zh) | 一种液冷服务器机柜 | |
| WO2025200541A1 (zh) | 液冷循环供液系统及液冷循环供液方法 | |
| CN114051356B (zh) | 负压液冷系统 | |
| CN114364238B (zh) | 平稳切换负压液冷系统和平稳切换负压液冷控制方法 | |
| WO2023206783A1 (zh) | 一种服务器及其除湿节能型负压液冷系统 | |
| US20220408606A1 (en) | Cooling module with serial fluid management | |
| CN218525611U (zh) | 一种燃料电池电堆测试的水路冷启动大小循环系统 | |
| CN116470175A (zh) | 一种储能配电设备的控温系统及控温方法 | |
| CN104534632B (zh) | 微负压管路系统及故障处理方法 | |
| CN109186091B (zh) | 一种冷却介质供给装置及控制方法 | |
| CN107221356A (zh) | 适用于聚变堆高温环境的闭环再循环气水混合冷却系统 | |
| CN209944800U (zh) | 用于热泵机组的自动补水系统 | |
| CN215731800U (zh) | 一种燃料电池发动机测试系统水冷换热温度控制装置 | |
| CN119997469A (zh) | 一种数据中心负压cdu处理系统及方法 | |
| CN209845599U (zh) | 一种冷却装置及服务器机柜系统 | |
| CN116027869B (zh) | 一种服务器温控系统及控制方法 | |
| CN219735679U (zh) | 液冷系统用补液装置 | |
| WO2024245153A1 (zh) | 气体保护系统、气体保护方法及储能系统 | |
| CN216700763U (zh) | 一种液冷功率放大器散热系统 | |
| CN111491482A (zh) | 一种冷却装置、服务器机柜系统及故障处理方法 | |
| CN116847633A (zh) | 一种具备防凝露功能的双回路液冷系统及控制方法 | |
| CN219015059U (zh) | 一种二级冷却水温控装置 | |
| CN112235995B (zh) | 一种用于数据中心制冷的冷水系统 | |
| CN120264717B (zh) | 一种数据中心负压cdu | |
| CN120529542A (zh) | 一种正负压自主切换的液冷系统及其切换方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24932998 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2024932998 Country of ref document: EP Effective date: 20251219 |
|
| ENP | Entry into the national phase |
Ref document number: 2024932998 Country of ref document: EP Effective date: 20251219 |
|
| ENP | Entry into the national phase |
Ref document number: 2024932998 Country of ref document: EP Effective date: 20251219 |
|
| ENP | Entry into the national phase |
Ref document number: 2024932998 Country of ref document: EP Effective date: 20251219 |
|
| ENP | Entry into the national phase |
Ref document number: 2024932998 Country of ref document: EP Effective date: 20251219 |