CN119603935A - A control method for a liquid cooling unit, an electronic device and a computer readable medium - Google Patents

A control method for a liquid cooling unit, an electronic device and a computer readable medium Download PDF

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Publication number
CN119603935A
CN119603935A CN202411790391.1A CN202411790391A CN119603935A CN 119603935 A CN119603935 A CN 119603935A CN 202411790391 A CN202411790391 A CN 202411790391A CN 119603935 A CN119603935 A CN 119603935A
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China
Prior art keywords
liquid
cooling cabinet
liquid cooling
preset
liquid level
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CN202411790391.1A
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Chinese (zh)
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CN119603935B (en
Inventor
廖聪晖
张煦婕
王红彦
魏星
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Zhejiang Kangsheng Heat Exchanger Co ltd
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Zhejiang Kangsheng Heat Exchanger Co ltd
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    • 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
    • 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
    • H05K7/20709—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The application discloses a control method, electronic equipment and a computer readable medium of a liquid cooling unit, wherein the liquid cooling unit further comprises a communication pipeline for communicating a first liquid cooling cabinet and a second liquid cooling cabinet, lengths of a liquid inlet pipeline and a liquid outlet pipeline corresponding to the first liquid cooling cabinet and a liquid inlet pipeline and a liquid outlet pipeline corresponding to the second liquid cooling cabinet are matched, the environment temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the liquid outlet temperature average value and the liquid inlet and outlet temperature difference average value of the first liquid cooling cabinet and the second liquid cooling cabinet are periodically detected, the running state of a liquid pump in a main pipeline is controlled, the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value between the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet are detected, and the running state of a communicating vessel in the communication pipeline and the running state of a liquid inlet valve in each liquid inlet pipeline are controlled. Control efficiency is improved, and then the cooling efficiency of the whole liquid cooling unit is improved.

Description

Control method of liquid cooling unit, electronic equipment and computer readable medium
Technical Field
The application relates to the technical field of immersed liquid cooling, in particular to a control method of a liquid cooling unit, electronic equipment and a computer readable medium.
Background
The computing power of the computing equipment is continuously improved along with the progress of science and technology, the performance requirement of the computing equipment is also higher and higher, and further the heating value and the heat flux density of the electronic element are also gradually increased, so that the loss of the computing equipment caused by the heating value of the electronic element is inevitably increased by times. The traditional air cooling technology can not meet the heat dissipation requirement of the power equipment, and the immersed liquid cooling technology has better heat dissipation capacity and less energy consumption, so that the operation efficiency and the service life of the power equipment can be effectively improved.
The calculation power requirements of various industries are different, a plurality of liquid cooling units are required to run simultaneously in certain scenes, the situation that liquid level imbalance possibly occurs among the plurality of liquid cooling units is solved, the static pressure of a return pipeline is reduced by using a return main pipe with a larger pipe diameter, and the static pressure of the pipeline is balanced by adjusting a valve according to a single-point threshold value, but the solution has higher cost and unsatisfactory effect.
Disclosure of Invention
The present application aims to solve one of the technical problems in the related art to a certain extent. To this end, the application provides a control method of a liquid cooling unit, an electronic device and a computer readable medium.
As a first aspect of the present application, there is provided a control method of a liquid cooling unit, the liquid cooling unit including a first liquid cooling cabinet, a second liquid cooling cabinet, a liquid supply loop network pipe, a liquid return loop network pipe, a main pipe communicating the liquid supply loop network pipe and the liquid return loop network pipe, a liquid inlet pipe communicating the liquid cooling cabinet and the liquid supply loop network pipe, and a liquid outlet pipe communicating the liquid cooling cabinet and the liquid return loop network pipe, wherein the liquid cooling unit further includes a communication pipe communicating the first liquid cooling cabinet and the second liquid cooling cabinet, lengths between a liquid inlet pipe and a liquid outlet pipe corresponding to the first liquid cooling cabinet and a liquid inlet pipe and a liquid outlet pipe corresponding to the second liquid cooling cabinet are matched, the method being periodically performed, the method including:
Detecting the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, and the average liquid outlet temperature and the average liquid inlet and outlet temperature difference between the first liquid cooling cabinet and the second liquid cooling cabinet;
Controlling the running state of a liquid pump in the main pipeline according to the environment temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average liquid outlet temperature value and the average liquid inlet and outlet temperature difference value;
detecting the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and a liquid level difference value between the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet;
And controlling the operation state of the communicating vessel in the communicating pipeline and the operation state of the liquid inlet valve in each liquid inlet pipeline according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value.
Optionally, the controlling the operation state of the communicating vessel in the communicating pipeline and the operation state of the liquid inlet valve in each liquid inlet pipeline according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value includes:
Determining a liquid level measurement error and a liquid level balance coefficient according to the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet under the condition that the liquid level difference value is larger than or equal to a first preset liquid level threshold value and smaller than or equal to a second preset liquid level threshold value;
controlling the communication amplitude of the communicating vessel to be a preset amplitude under the condition that the liquid level balance coefficient is smaller than a preset balance threshold value;
When the liquid level balance coefficient is larger than or equal to a preset balance threshold value, controlling the communication amplitude of the communicating vessel to be a preset amplitude, and determining a target valve step control amount according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value;
and controlling the valve steps of the liquid inlet valves in the liquid inlet pipelines according to the target valve step control quantity.
Optionally, the level measurement error and the level balancing coefficient are determined by the following formula (1):
the target valve step control amount is determined by the following formula (2):
F1＝Round(kp*(ΔLC1-ΔLC2)+ki*ΔL+kd*(ΔLC1-2ΔLC2+ΔLC3))*θ*100％ (2);
In equations (1) and (2), Δl C 1 represents the liquid level measurement error, F ′ represents the liquid level balance coefficient, L 1 represents the liquid level of the first liquid-cooled cabinet, L 2 represents the liquid level of the second liquid-cooled cabinet, F 1 represents the target valve step control amount, round (.+ -.) represents a rounding function, kp is a proportional coefficient and takes a value of 0.12, Δl C 2 represents a liquid level measurement error in the previous period, ki is an integral coefficient and takes a value of 0.15, Δl represents the liquid level difference, kd is a differential coefficient and takes a value of 0.2, Δl C 3 represents a liquid level measurement error in the previous period, θ is a correction coefficient and takes a value of 0.1.
Optionally, in the step of controlling the operation state of the communicating vessel in the communicating pipeline and the operation state of the liquid inlet valve in each liquid inlet pipeline according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value, the method further includes:
Controlling the valve step of a regulating valve in a liquid inlet pipeline corresponding to the first liquid cooling cabinet to reduce a first preset step number under the condition that the liquid level difference value is larger than a second preset liquid level threshold value;
And under the condition that the liquid level difference value is smaller than a first preset liquid level threshold value, controlling the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet to reduce the first preset step number.
Optionally, the step of controlling the operation state of the liquid pump in the main pipeline according to the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the liquid outlet temperature average value and the liquid inlet and outlet temperature difference average value includes:
Controlling the running frequency of the liquid pump to be unchanged under the condition that the average liquid outlet temperature is smaller than a preset liquid outlet temperature threshold value and the average liquid inlet and outlet temperature difference is smaller than a preset temperature difference threshold value;
in the step of controlling the operation state of the communicating vessel in the communicating pipeline and the operation state of the liquid inlet valve in each liquid inlet pipeline according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value, the method further includes:
Controlling the valve step of a regulating valve in a liquid inlet pipeline corresponding to the second liquid cooling cabinet to increase by a second preset step number under the condition that the liquid level difference value is larger than a second preset liquid level threshold value;
And under the condition that the liquid level difference value is smaller than a first preset liquid level threshold value, controlling the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet to increase by a second preset step number.
Optionally, controlling the operation state of the liquid pump in the main pipeline according to the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the liquid outlet temperature average value and the liquid inlet and outlet temperature difference average value includes:
Determining a target frequency control amount according to the preset temperature difference threshold, the environment temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet and a preset first algorithm under the condition that the liquid outlet temperature average value is larger than or equal to a preset liquid outlet temperature threshold and the liquid inlet and outlet temperature difference average value is smaller than the preset temperature difference threshold;
Determining a target frequency control amount according to the preset temperature difference threshold, the environment temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet and a preset second algorithm under the condition that the average liquid outlet temperature value is larger than or equal to a preset liquid outlet temperature threshold and the average liquid inlet and outlet temperature difference value is larger than or equal to a preset temperature difference threshold;
and controlling the operating frequency of the liquid pump according to the target frequency control quantity.
Optionally, the preset first algorithm includes the following formula (3):
the preset second algorithm includes the following formula (4):
In formulas (3) and (4), F 2 represents the target frequency control amount, round (.+ -.) represents a rounding function, Δt represents the preset temperature difference threshold, the value range of a is (2 ℃,6 ℃) and Th represents the ambient temperature, tout1 represents the liquid outlet temperature of the first liquid cooling cabinet, tout2 represents the liquid outlet temperature of the second liquid cooling cabinet, and T set represents the preset calibration amount.
Optionally, in the step of controlling the operation state of the liquid pump in the main pipeline according to the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the liquid outlet temperature average value and the liquid inlet and outlet temperature difference average value, the method further includes:
And controlling the valve step of the regulating valve in the liquid pump to be the maximum value under the condition that the average value of the liquid outlet temperature is smaller than a preset liquid outlet temperature threshold value and the average value of the liquid inlet and outlet temperature difference is larger than or equal to a preset temperature difference threshold value.
As a second aspect of the present application, there is provided an electronic apparatus, wherein the electronic apparatus includes:
One or more processors;
And a memory having one or more computer programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the method for controlling a liquid cooling unit provided in the first aspect of the present application.
As a third aspect of the present application, there is provided a computer-readable medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the control method of the liquid cooling unit provided in the first aspect of the present application.
In the control method of the liquid cooling unit provided by the embodiment of the application, on the basis of the liquid cooling unit comprising a first liquid cooling cabinet, a second liquid cooling cabinet, a liquid supply ring network pipeline, a liquid return ring network pipeline, a main pipeline communicated with the liquid supply ring network pipeline and the liquid return ring network pipeline, a liquid inlet pipeline communicated with the liquid cooling cabinet and the liquid supply ring network pipeline and a liquid outlet pipeline communicated with the liquid cooling cabinet and the liquid return ring network pipeline, the communication pipeline communicated with the first liquid cooling cabinet and the second liquid cooling cabinet is additionally arranged, the lengths of the liquid inlet pipeline and the liquid outlet pipeline corresponding to the first liquid cooling cabinet and the liquid inlet pipeline and the liquid outlet pipeline corresponding to the second liquid cooling cabinet are matched, the environment temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the liquid outlet temperature average value and the liquid inlet and outlet temperature difference average value between the first liquid cooling cabinet and the second liquid cooling cabinet are periodically detected, according to the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the liquid outlet temperature average value and the liquid inlet and outlet temperature difference average value, the operation state of the liquid pump in the main pipeline is controlled, the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value between the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet are detected, and according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value, the operation state of the communicating vessel in the communicating pipeline and the operation state of the liquid inlet valve in each liquid inlet pipeline are controlled. The method can safely and accurately maintain the load balance and the liquid level balance of the whole liquid cooling unit under the condition of saving the layout cost, thereby improving the control efficiency and further improving the cooling efficiency of the whole liquid cooling unit.
Drawings
The application is further described below with reference to the accompanying drawings:
FIG. 1 is a flow chart of an embodiment of a method for controlling a fluid cooling unit according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an exemplary embodiment of a fluid cooling unit according to the present application;
FIG. 3 is a flow chart of another embodiment of a method for controlling a fluid cooling unit according to an embodiment of the present application;
FIG. 4 is a flow chart of a further embodiment of a method for controlling a fluid cooling unit according to an embodiment of the present application;
FIG. 5 is a flow chart of a further embodiment of a method for controlling a fluid cooling unit according to an embodiment of the present application;
FIG. 6 is a flow chart of another embodiment of a method for controlling a fluid cooling unit according to an embodiment of the present application;
FIG. 7 is a block diagram of one implementation of an electronic device provided by an embodiment of the application;
FIG. 8 is a schematic diagram of a computer readable medium provided by an embodiment of the present application.
Description of the reference numerals
101 Processor 102 memory
103:I/O interface 104:bus
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The examples in the embodiments are intended to illustrate the present application and are not to be construed as limiting the present application.
Reference in the specification to "one embodiment" or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment itself can be included in at least one embodiment of the disclosure. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.
Some scenes require a plurality of liquid cooling units to run simultaneously, the situation that liquid level unbalance can occur among the plurality of liquid cooling units, and the current solution cost is higher and the effect is not ideal enough. Therefore, the inventor of the application proposes that a one-to-two design and a ring network design are adopted for the liquid cooling unit, meanwhile, a communicating vessel design can be added between two liquid cooling cabinets, and the load condition of the whole liquid cooling unit and the liquid level balance condition between the two liquid cooling cabinets are analyzed by means of the ambient temperature, the liquid inlet temperature, the liquid outlet temperature and the liquid level of each liquid cooling cabinet, so that the running states of a liquid pump, the communicating vessel and a liquid inlet valve are safely and accurately regulated by a PID (proportion-integral-derivative) controller.
As a first aspect of the embodiments of the present application, a control method of a liquid cooling unit is provided, where the liquid cooling unit includes a first liquid cooling cabinet, a second liquid cooling cabinet, a liquid supply ring network pipeline, a liquid return ring network pipeline, a main pipeline that communicates the liquid supply ring network pipeline with the liquid return ring network pipeline, a liquid inlet pipeline that communicates the liquid cooling cabinet with the liquid supply ring network pipeline, and a liquid outlet pipeline that communicates the liquid cooling cabinet with the liquid return ring network pipeline, where the liquid cooling unit further includes a communication pipeline that communicates the first liquid cooling cabinet with the second liquid cooling cabinet, where lengths between the liquid inlet pipeline and the liquid outlet pipeline corresponding to the first liquid cooling cabinet and the liquid inlet pipeline and the liquid outlet pipeline corresponding to the second liquid cooling cabinet are matched, and the method is periodically performed, as shown in fig. 1, and the method may include the following steps:
In step S110, detecting an ambient temperature, a liquid outlet temperature of the first liquid cooling cabinet, a liquid outlet temperature of the second liquid cooling cabinet, and an average value of liquid outlet temperatures and an average value of liquid inlet and outlet temperature differences between the first liquid cooling cabinet and the second liquid cooling cabinet;
in step S120, controlling an operation state of the liquid pump in the main pipeline according to the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average liquid outlet temperature and the average liquid inlet and outlet temperature difference;
In step S130, detecting a liquid level of the first liquid cooling cabinet, a liquid level of the second liquid cooling cabinet, and a liquid level difference between the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet;
in step S140, according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference, an operation state of the communicating vessel in the communicating pipeline and an operation state of the liquid inlet valve in each liquid inlet pipeline are controlled.
As shown in fig. 2, a schematic diagram of an implementation manner of a liquid cooling unit provided by an embodiment of the present application is shown, where a liquid cooling cabinet in the liquid cooling unit may be designed by using a standard 42U, and the length, width and height may be respectively designed to be m=1800 mm, n=600 mm, and l=1400 mm. The pipe diameter of the main pipeline can be designed as Wherein Qv represents the volumetric flow rate, α represents the flow coefficient, ε represents the coefficient of expansion, ΔP represents the differential pressure, ρ represents the coolant density. The first liquid cooling cabinet and the second liquid cooling cabinet are communicated with the liquid supply loop network pipe through liquid inlet pipelines and are communicated with the liquid return loop network pipe through liquid outlet pipelines. The length between the feed liquor pipeline that first liquid cooling rack corresponds and the feed liquor pipeline that goes out the liquid pipeline and go out the liquid pipeline that the second liquid cooling rack corresponds matches, that is, the length matches between two feed liquor pipelines and the length matches between two play liquid pipelines, so, two liquid cooling racks respectively with the looped netowrk pipeline (including feed liquor looped netowrk pipeline, return liquor looped netowrk pipeline and main line) have formed complete confession return link, and the total length is equal between these two confession return links.
In the embodiment of the application, the pipe diameter design of different types of pipelines is not particularly limited, and in general, each pipe diameter is one of DN32, DN40, DN50 and DN65, so that the cost saving and the efficiency improvement can be well achieved.
In the embodiment of the present application, how to execute step S110 is not particularly limited, for example, the ambient temperature and the respective liquid inlet temperature and liquid outlet temperature of the two liquid cooling cabinets may be collected first, the average liquid outlet temperature between the two liquid cooling cabinets may be obtained by calculating the respective liquid outlet temperatures of the two liquid cooling cabinets, the liquid inlet and outlet temperature difference of each liquid cooling cabinet may be obtained by calculating the liquid inlet temperature and the liquid outlet temperature of the liquid cooling cabinet, and then the average liquid inlet and outlet temperature difference of the two liquid cooling cabinets may be calculated to obtain the average liquid inlet and outlet temperature difference.
In the embodiment of the present application, how to execute the step S130 is not limited in particular, for example, the liquid levels of the two liquid cooling cabinets may be collected first, and then the liquid level difference may be calculated.
In the embodiment of the present application, it can be understood that after the execution of step S140 is completed, in response to the arrival of the next cycle, step S110 is skipped to continue to execute the control method of the liquid cooling unit provided in the embodiment of the present application in the next cycle.
The inventor of the application proposes that the load condition of the whole liquid cooling unit can influence the static pressure balance of the whole pipeline system, and then the liquid level balance between the two liquid cooling cabinets can be influenced, and the environment temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the liquid outlet temperature average value and the liquid inlet and outlet temperature difference average value can comprehensively and objectively reflect the load condition of the whole liquid cooling unit, thereby controlling the running state of the liquid pump in the main pipeline, and safely and accurately maintaining the load balance of the whole liquid cooling unit.
The inventor of the present application proposes that, at present, when two liquid cooling cabinets exist in a liquid cooling unit, the liquid level between the two liquid cooling cabinets is unbalanced, because the total length between two liquid cooling cabinets and two supply and return links formed by the two liquid cooling cabinets and a ring network pipeline (including a liquid supply ring network pipeline, a return ring network pipeline and a main pipeline) is different, that is, one near-end liquid cooling cabinet and one far-end liquid cooling cabinet exist. Because the on-way resistance and the local resistance of the pipeline are uneven, the resistance loss of the liquid return pipeline is different between the near-end liquid cooling cabinet and the far-end liquid cooling cabinet. Because the liquid outlet flow velocity of the near-end liquid cooling cabinet is larger, the static pressure of the corresponding area is smaller, and the liquid level is unbalanced finally under the static pressure unbalance. To this, through the feed liquor pipeline and the play liquid pipeline that correspond first liquid cooling rack, set up to length matching between the feed liquor pipeline and the play liquid pipeline that correspond with the second liquid cooling rack, break near-end far-end difference between two liquid cooling racks, can realize the static pressure balance of whole piping system, be favorable to maintaining the liquid level balance between two liquid cooling racks.
The inventor of the application also proposes that the liquid level and the liquid level difference value of the two liquid cooling cabinets can comprehensively and objectively reflect the liquid level balance condition between the two liquid cooling cabinets, namely the liquid level difference and the dynamic development trend, thereby controlling the running state of the communicating vessels in the communicating pipelines and the running state of the liquid inlet valves in the liquid inlet pipelines, and also can safely and accurately maintain the liquid level balance between the two liquid cooling cabinets.
In the control method of the liquid cooling unit provided by the embodiment of the application, on the basis of the liquid cooling unit comprising a first liquid cooling cabinet, a second liquid cooling cabinet, a liquid supply ring network pipeline, a liquid return ring network pipeline, a main pipeline communicated with the liquid supply ring network pipeline and the liquid return ring network pipeline, a liquid inlet pipeline communicated with the liquid cooling cabinet and the liquid supply ring network pipeline and a liquid outlet pipeline communicated with the liquid cooling cabinet and the liquid return ring network pipeline, the communication pipeline communicated with the first liquid cooling cabinet and the second liquid cooling cabinet is additionally arranged, the lengths of the liquid inlet pipeline and the liquid outlet pipeline corresponding to the first liquid cooling cabinet and the liquid inlet pipeline and the liquid outlet pipeline corresponding to the second liquid cooling cabinet are matched, the environment temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the liquid outlet temperature average value and the liquid inlet and outlet temperature difference average value between the first liquid cooling cabinet and the second liquid cooling cabinet are periodically detected, according to the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the liquid outlet temperature average value and the liquid inlet and outlet temperature difference average value, the operation state of the liquid pump in the main pipeline is controlled, the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value between the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet are detected, and according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value, the operation state of the communicating vessel in the communicating pipeline and the operation state of the liquid inlet valve in each liquid inlet pipeline are controlled. The method can safely and accurately maintain the load balance and the liquid level balance of the whole liquid cooling unit under the condition of saving the layout cost, thereby improving the control efficiency and further improving the cooling efficiency of the whole liquid cooling unit.
As shown in table one below, the inventors of the present application also analyzed the relationship between the pipe diameter of the communication pipe and the total flow rate in each pipe and the liquid level difference of the two liquid cooling cabinets, and as seen from the fact that the liquid level difference of the two liquid cooling cabinets is effectively reduced after the use of the communication pipe, and that the liquid level difference of the two liquid cooling cabinets is effectively reduced after the increase of the pipe diameter of the communication pipe, but the liquid level difference of the two liquid cooling cabinets is not infinitely reduced with the increase of the pipe diameter of the communication pipe, and when the total flow rate of the liquid cooling unit is small as 5m 3/h, it is sufficient to use the communication pipe having the pipe diameter DN32 or DN40 in practice. Therefore, as a preferred embodiment, the pipe diameter of the main pipe may be set to DN40, the pipe diameters of the liquid inlet pipe and the liquid outlet pipe may be set to DN32, and the pipe diameters of the liquid supply ring pipe, the liquid return ring pipe and the communication pipe may be set to DN40.
List one
In some embodiments, the controlling the operation state of the communicating vessel in the communicating pipeline and the operation state of the liquid inlet valve in each liquid inlet pipeline (i.e. referred to in step S140) according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference, as shown in fig. 3, may include the following steps:
In step S210, if the liquid level difference is greater than or equal to a first preset liquid level threshold and less than or equal to a second preset liquid level threshold, determining a liquid level measurement error and a liquid level balance coefficient according to the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet;
In step S220, controlling the communication amplitude of the communicating vessel to a preset amplitude in the case that the liquid level balance coefficient is smaller than a preset balance threshold;
In step S230, if the liquid level balance coefficient is greater than or equal to a preset balance threshold, controlling the communication amplitude of the communication device to be a preset amplitude, and determining a target valve step control amount according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference value;
In step S240, the valve steps of the liquid inlet valves in the liquid inlet pipes are controlled according to the target valve step control amounts.
The liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet are respectively indicated as L 1、L2, the liquid level difference value is indicated as Δl=l 1-L2, the first preset liquid level threshold value and the second preset liquid level threshold value are respectively indicated as-X, x, and it can be understood that x is a positive number. In the embodiment of the present application, the value of x is not particularly limited, and as a preferred implementation manner, the value range of x may be (0, 2 cm).
When-X is less than or equal to DeltaL=L 1-L2 is less than or equal to X, the liquid level difference between the two liquid cooling cabinets is smaller and still is in a safe range. At this time, the steps S210-S240 are further performed, and the difference and the dynamic development trend of the liquid levels of the two liquid cooling cabinets are further analyzed, so as to control the communication amplitude of the communicating vessel and the valve steps of the liquid inlet valves in the liquid inlet pipelines according to the difference and the dynamic development trend of the liquid levels between the two liquid cooling cabinets.
The liquid level balance coefficient is expressed as f ′, the preset balance threshold is expressed as K, when f ′ is less than K, the liquid levels of the two liquid cooling cabinets are indicated to be in trend of dynamic balance, and at the moment, the communication amplitude of the communicating vessel is controlled to be in a preset amplitude so as to maintain the dynamic balance between the liquid levels of the two liquid cooling cabinets. In the embodiment of the present application, the preset amplitude is not specifically limited, and for example, the preset amplitude may be 45%, 50%, 55%, or the like.
When f ′ is more than or equal to K, the liquid levels of the two liquid cooling cabinets are indicated to be forward towards the trend of discrete phases, at the moment, the communication amplitude of the communicating vessel is required to be controlled to be a preset amplitude, and the valve steps of the liquid inlet valves in the liquid inlet pipelines of the two liquid cooling cabinets are required to be synchronously controlled, so that the liquid levels of the two liquid cooling cabinets are driven to be forward towards the trend of dynamic balance.
In the embodiment of the present application, how to determine the target valve step control amount according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference is not particularly limited, for example, the following formulas (a), (b), and (c) may be adopted to determine the target valve step control amount:
Accordingly, in some embodiments, the level measurement error and the level balancing coefficient are determined by the following equation (1):
the target valve step control amount is determined by the following formula (2):
F1＝Round(kp*(ΔLC1-ΔLC2)+ki*ΔL+kd*(ΔLC1-2ΔLC2+ΔLC3))*θ*100％ (2);
In formulas (1) and (2), Δl C 1 represents the liquid level measurement error, F' represents the liquid level balance coefficient, L 1 represents the liquid level of the first liquid cooling cabinet, L 2 represents the liquid level of the second liquid cooling cabinet, F 1 represents the target valve step control amount, round (..) represents the rounding function, kp is a proportional coefficient and takes a value of 0.12, Δl C 2 represents the liquid level measurement error in the previous cycle, ki is an integral coefficient and takes a value of 0.15, Δl represents the liquid level difference, kd is a differential coefficient and takes a value of 0.2, Δl C 3 represents the liquid level measurement error in the previous cycle, θ is a correction coefficient and takes a value of 0.1.
It is understood that the determined target valve step control amount may be positive or negative, and the positive value is the valve step increase of the liquid inlet valve in each liquid inlet pipeline, the negative value is the valve step decrease of the liquid inlet valve in each liquid inlet pipeline, and the step number of the increase or decrease is the absolute value of the target valve step control amount.
The above is related to the case that the liquid level difference is greater than or equal to the first preset liquid level threshold and less than or equal to the second preset liquid level threshold, that is, -X is less than or equal to Δl=l 1-L2 is less than or equal to X, and for the two extreme cases of Δl > X and Δl < -X, it is illustrated that the difference of the liquid levels between the two liquid cooling cabinets is large, and at this time, it needs to be considered how to drive the liquid levels of the two liquid cooling cabinets to reach dynamic balance at the highest speed. Accordingly, in some embodiments, in the step of controlling the operation state of the communicating vessel in the communicating pipeline and the operation state of the liquid inlet valve in each liquid inlet pipeline according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference (i.e. referred to in step S140), as shown in fig. 4, the steps may include:
In step S250, controlling the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet to reduce a first preset step number under the condition that the liquid level difference value is greater than a second preset liquid level threshold value;
In step S260, under the condition that the liquid level difference is smaller than the first preset liquid level threshold, controlling the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet to decrease by the first preset step number.
When Δl=l 1-L2 and Δl > X, it is indicated that the liquid level of the first liquid cooling cabinet is significantly higher than the liquid level of the second liquid cooling cabinet, and at this time, the valve step of the adjusting valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet needs to be reduced to slow down the liquid inlet speed of the first liquid cooling cabinet. When DeltaL < -X, the explanation shows that the liquid level of the second liquid cooling cabinet is obviously higher than that of the first liquid cooling cabinet, and the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet is required to be reduced so as to slow down the liquid inlet speed of the second liquid cooling cabinet.
The inventor of the application further proposes that, for two extreme cases of delta L > X and delta L < -X, according to the analysis result of the load condition of the whole liquid cooling unit before, whether the valve step of the regulating valve in the liquid inlet pipeline corresponding to the liquid cooling cabinet with lower liquid level is increased is considered, so as to accelerate the liquid inlet speed of the liquid cooling cabinet with lower liquid level, and the liquid levels of the two liquid cooling cabinets tend to be dynamically balanced more rapidly.
Accordingly, in some embodiments, in the step of controlling the operation state of the liquid pump in the main pipeline (i.e. referred to in step S120) according to the ambient temperature, the outlet temperature of the first liquid cooling cabinet, the outlet temperature of the second liquid cooling cabinet, the outlet temperature average value, and the inlet-outlet temperature difference average value, the method may include the step of controlling the operation frequency of the liquid pump to remain unchanged when the outlet temperature average value is less than a preset outlet temperature threshold value and the inlet-outlet temperature difference average value is less than a preset temperature difference threshold value;
In the step of controlling the operation state of the communicating vessel in the communicating pipeline and the operation state of the liquid inlet valve in each liquid inlet pipeline according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference (that is, referred to in step S140), the method may include the following steps:
Controlling the valve step of a regulating valve in a liquid inlet pipeline corresponding to the second liquid cooling cabinet to increase by a second preset step number under the condition that the liquid level difference value is larger than a second preset liquid level threshold value;
And under the condition that the liquid level difference value is smaller than a first preset liquid level threshold value, controlling the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet to increase by a second preset step number.
The liquid outlet temperature of the first liquid cooling machine cabinet, the liquid outlet temperature of the second liquid cooling machine cabinet, the average liquid outlet temperature and the average liquid inlet and outlet temperature difference are respectively expressed as Tout1, tout2,The preset liquid outlet temperature threshold and the preset temperature difference threshold are respectively expressed as T x and delta T, whenAnd is also provided withWhen the load of the whole liquid cooling unit is normal, the operation frequency of the liquid pump can be controlled to be unchanged. As described above, in the control method of the liquid cooling unit provided by the embodiment of the application, L 1、L2、ΔL＝L1-L2 is further detected immediately, so when Δl > X or Δl < -X is determined, the valve step of the adjusting valve in the liquid inlet pipeline corresponding to the liquid cooling cabinet with lower liquid level can be increased, so as to accelerate the liquid inlet speed of the liquid cooling cabinet with lower liquid level, and the liquid levels of the two liquid cooling cabinets tend to be dynamically balanced more rapidly.
That is, when it is determined thatAnd is also provided withWhen the operation frequency of the control liquid pump is kept unchanged, the detection of L 1、L2、ΔL＝L1-L2 is carried out immediately. If the delta L > X is determined, reducing the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet by a first preset step number so as to slow down the liquid inlet speed of the first liquid cooling cabinet, and increasing the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet by a second preset step number so as to speed up the liquid inlet speed of the second liquid cooling cabinet, so that the liquid levels of the two liquid cooling cabinets tend to be dynamically balanced more rapidly. When delta L < -X, reducing the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet by a first preset step number so as to slow down the liquid inlet speed of the second liquid cooling cabinet, and increasing the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet by a second preset step number so as to speed up the liquid inlet speed of the first liquid cooling cabinet, so that the liquid levels of the two liquid cooling cabinets tend to be dynamically balanced more quickly.
In the embodiment of the present application, if it is determined during the analysis of the load condition of the whole liquid cooling unitAnd is also provided withAnd then determining delta L > X or delta L < -X when analyzing the liquid level difference and dynamic development trend of the two liquid cooling cabinets, wherein the first preset step number and the second preset step number are not particularly limited, and the first preset step number is at least not smaller than the second preset step number. For example, the first preset number of steps and the second preset number of steps may be set to 100 steps and 50 steps, respectively.
The above relates to that the average value of the liquid outlet temperature is smaller than the preset liquid outlet temperature threshold value and the average value of the liquid inlet and outlet temperature difference is smaller than the preset temperature difference threshold value, namelyAnd is also provided withIn contrast to this, the case of the load of the entire liquid cooling unit is not good, and the operation state of the liquid pump needs to be controlled to drive the entire liquid cooling unit to achieve load balance.
Accordingly, in some embodiments, the controlling the operation state of the liquid pump in the main pipeline (i.e. referred to in step S120) according to the ambient temperature, the outlet temperature of the first liquid cooling cabinet, the outlet temperature of the second liquid cooling cabinet, the outlet temperature average value and the inlet-outlet temperature difference average value may include, as shown in fig. 5, the following steps:
In step S310, when the average value of the liquid outlet temperatures is greater than or equal to a preset liquid outlet temperature threshold value and the average value of the liquid inlet and outlet temperature differences is less than a preset temperature difference threshold value, determining a target frequency control amount according to the preset temperature difference threshold value, the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet and a preset first algorithm;
In step S320, when the average value of the liquid outlet temperatures is greater than or equal to a preset liquid outlet temperature threshold value and the average value of the liquid inlet and outlet temperature differences is greater than or equal to a preset temperature difference threshold value, determining a target frequency control amount according to the preset temperature difference threshold value, the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, and a preset second algorithm;
In step S330, the operating frequency of the liquid pump is controlled according to the target frequency control amount.
It will be appreciated that step S310 involvesAnd is also provided withIn the case of step S320, it isAnd is also provided withIn the case of (1)And is also provided withWhen the load of the whole liquid cooling unit is too largeAnd is also provided withIn this case, the overload of the whole liquid cooling unit is extremely serious. In both different cases, the target frequency control amount needs to be determined, and then the operating frequency of the liquid pump is controlled according to the target frequency control amount. The difference is that the target frequency control amount obtained using the preset second algorithm is larger than the target frequency control amount obtained using the preset first algorithm.
Accordingly, in some embodiments, the preset first algorithm includes the following formula (3):
the preset second algorithm includes the following formula (4):
In formulas (3) and (4), F 2 represents the target frequency control amount, round (.+ -.) represents a rounding function, Δt represents the preset temperature difference threshold, the value range of a is (2 ℃,6 ℃) and Th represents the ambient temperature, tout1 represents the liquid outlet temperature of the first liquid cooling cabinet, tout2 represents the liquid outlet temperature of the second liquid cooling cabinet, and T set represents the preset calibration amount.
In some embodiments, in the step of controlling the operation state of the liquid pump in the main pipeline (i.e. referred to in step S120) according to the ambient temperature, the outlet temperature of the first liquid cooling cabinet, the outlet temperature of the second liquid cooling cabinet, the outlet temperature average value and the inlet-outlet temperature difference average value, as shown in fig. 6, the method may further include the following steps:
In step S410, when the average value of the outlet liquid temperature is smaller than a preset outlet liquid temperature threshold value and the average value of the inlet and outlet liquid temperature difference is greater than or equal to a preset temperature difference threshold value, the valve step of the regulating valve in the liquid pump is controlled to be the maximum value.
It will be appreciated that step S410 involvesAnd is also provided withIs the case in (a). When (when)And is also provided withWhen the load of the whole liquid cooling unit is abnormal, the valve step of the regulating valve in the liquid pump needs to be controlled to be the maximum value, namely, the regulating valve in the liquid pump is opened to 100 percent, so that the load balance of the whole liquid cooling unit is driven.
As described above, in the control method of the liquid cooling unit provided by the embodiment of the application, the load condition of the whole liquid cooling unit is firstly analyzed and divided into four conditions, namely 1,And is also provided with2、And is also provided with3、And is also provided with4、And is also provided withFurther analyzing the liquid level difference and dynamic development trend of the two liquid cooling cabinets, wherein the liquid level difference and dynamic development trend of the two liquid cooling cabinets are divided into three conditions of a, -X is less than or equal to delta L=L 1-L2 is less than or equal to X, b and delta L are more than X, and c and delta L are less than or equal to-X. For the four cases 1,2, 3 and 4, if the situation a appears when the difference of the liquid levels of the two liquid cooling cabinets and the dynamic development trend are analyzed later, the communication amplitude of the communicating vessel needs to be controlled to be a preset amplitude (related in step S210-step S240), at this time, the preset amplitudes are different, and if the situation b and c appears when the difference of the liquid levels of the two liquid cooling cabinets and the dynamic development trend are analyzed later, the valve steps of the regulating valves in the liquid inlet pipelines corresponding to the first liquid cooling cabinet or the second liquid cooling cabinet need to be reduced by a first preset step number (related in step S250-step S260), at this time, the preset first step numbers are different.
Because the load degree of the whole liquid cooling unit is increased under the four conditions of 1,2, 3 and 4, the preset amplitude corresponding to the condition 1, the preset amplitude corresponding to the condition 2, the preset amplitude corresponding to the condition 3 and the preset amplitude corresponding to the condition 4 are also increased in a general way, and the preset first step number corresponding to the condition 2, the preset first step number corresponding to the condition 3 and the preset first step number corresponding to the condition 4 are also increased in a general way. It can be understood that, for the case 1, since the valve step of the adjusting valve in the liquid inlet pipeline corresponding to the liquid cooling cabinet with a lower liquid level is further increased, the corresponding preset first step number can be greater than the preset first step number corresponding to the case 2, the preset first step number corresponding to the case 3 and the preset first step number corresponding to the case 4.
For example, the preset amplitude corresponding to the case 1, the preset amplitude corresponding to the case 2, the preset amplitude corresponding to the case 3, and the preset amplitude corresponding to the case 4 may be 50%, 70%, 90%, and 100%, respectively, and the preset first step number corresponding to the case 1, the preset first step number corresponding to the case 2, the preset first step number corresponding to the case 3, and the preset first step number corresponding to the case 4 may be 100 steps, 50 steps, 100 steps, and 200 steps, respectively.
As a second aspect of the embodiment of the present application, there is provided an electronic device, wherein, as shown in fig. 7, the electronic device includes:
one or more processors 101;
And a memory 102, on which one or more computer programs are stored, which when executed by the one or more processors 101, cause the one or more processors 101 to implement the method for controlling a liquid cooling unit provided in the first aspect of the embodiment of the present application.
The electronic device may also include one or more I/O interfaces 103 coupled between the processor 101 and the memory 102 configured to enable information interaction of the processor 101 with the memory 102.
The processor 101 is a device with data processing capability, including but not limited to a Central Processing Unit (CPU), the memory 102 is a device with data storage capability, including but not limited to a random access memory (RAM, more specifically SDRAM, DDR, etc.), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a FLASH memory (FLASH), and an I/O interface (read/write interface) is connected between the processor and the memory, so as to enable information interaction between the processor and the memory, including but not limited to a data Bus (Bus), etc.
In some embodiments, processor 101, memory 102, and I/O interface 103 are connected to each other via bus 104, and thus to other components of the computing device.
As a third aspect of the embodiment of the present application, as shown in fig. 8, there is provided a computer readable medium having a computer program stored thereon, where the computer program, when executed by a processor, implements the method for controlling a liquid cooling unit provided in the first aspect of the embodiment of the present application.
Those skilled in the art will appreciate that implementing all or part of the processes in the methods of the embodiments described above may be accomplished by computer programs to instruct related hardware. Accordingly, the computer program may be stored in a non-volatile computer readable storage medium, which when executed, performs the method of any of the above embodiments. Any reference to memory, storage, database, or other medium used in embodiments of the application may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (SYNCHLINK) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The above is only a specific embodiment of the present application, but the scope of the present application is not limited thereto, and it should be understood by those skilled in the art that the present application includes but is not limited to the accompanying drawings and the description of the above specific embodiment. Any modifications which do not depart from the functional and structural principles of the present application are intended to be included within the scope of the appended claims.

Claims (10)

1.一种液冷机组的控制方法，所述液冷机组包括第一液冷机柜、第二液冷机柜、供液环网管路、回液环网管路、连通所述供液环网管路与所述回液环网管路的主管路、连通所述液冷机柜与所述供液环网管路的进液管路以及连通所述液冷机柜与所述回液环网管路的出液管路，其特征在于，所述液冷机组还包括连通所述第一液冷机柜与所述第二液冷机柜的连通管路，所述第一液冷机柜对应的进液管路和出液管路与所述第二液冷机柜对应的进液管路和出液管路之间长度匹配，所述方法周期性执行，所述方法包括：1. A control method for a liquid cooling unit, the liquid cooling unit comprising a first liquid cooling cabinet, a second liquid cooling cabinet, a liquid supply ring network pipeline, a liquid return ring network pipeline, a main pipeline connecting the liquid supply ring network pipeline and the liquid return ring network pipeline, a liquid inlet pipeline connecting the liquid cooling cabinet and the liquid supply ring network pipeline, and a liquid outlet pipeline connecting the liquid cooling cabinet and the liquid return ring network pipeline, characterized in that the liquid cooling unit also includes a connecting pipeline connecting the first liquid cooling cabinet and the second liquid cooling cabinet, the liquid inlet pipeline and the liquid outlet pipeline corresponding to the first liquid cooling cabinet are matched in length with the liquid inlet pipeline and the liquid outlet pipeline corresponding to the second liquid cooling cabinet, the method is executed periodically, and the method comprises: 检测环境温度、所述第一液冷机柜的出液温度、所述第二液冷机柜的出液温度、以及所述第一液冷机柜与所述第二液冷机柜之间的出液温度平均值和进出液温差平均值；Detecting the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, and the average value of the liquid outlet temperature and the average value of the inlet and outlet temperature difference between the first liquid cooling cabinet and the second liquid cooling cabinet; 根据所述环境温度、所述第一液冷机柜的出液温度、所述第二液冷机柜的出液温度、所述出液温度平均值和进出液温差平均值，控制所述主管路中液泵的运行状态；Controlling the operating state of the liquid pump in the main line according to the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature and the average value of the inlet and outlet liquid temperature difference; 检测所述第一液冷机柜的液位、所述第二液冷机柜的液位、以及所述第一液冷机柜的液位与所述第二液冷机柜的液位之间的液位差值；Detecting a liquid level of the first liquid-cooling cabinet, a liquid level of the second liquid-cooling cabinet, and a liquid level difference between the liquid level of the first liquid-cooling cabinet and the liquid level of the second liquid-cooling cabinet; 根据所述第一液冷机柜的液位、所述第二液冷机柜的液位以及所述液位差值，控制所述连通管路中连通器的运行状态以及各所述进液管路中进液阀的运行状态。According to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference, the operating state of the connecting vessel in the connecting pipeline and the operating state of the liquid inlet valve in each of the liquid inlet pipelines are controlled. 2.根据权利要求1所述的方法，其特征在于，所述根据所述第一液冷机柜的液位、所述第二液冷机柜的液位以及所述液位差值，控制所述连通管路中连通器的运行状态以及各所述进液管路中进液阀的运行状态，包括：2. The method according to claim 1, characterized in that the controlling the operating state of the communicating vessel in the communicating pipeline and the operating state of the liquid inlet valve in each of the liquid inlet pipelines according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference comprises: 在所述液位差值大于或等于第一预设液位阈值且小于或等于第二预设液位阈值的情况下，根据所述第一液冷机柜的液位以及所述第二液冷机柜的液位，确定出液位测量误差和液位平衡系数；When the liquid level difference is greater than or equal to a first preset liquid level threshold and less than or equal to a second preset liquid level threshold, determining a liquid level measurement error and a liquid level balance coefficient according to the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet; 在所述液位平衡系数小于预设平衡阈值的情况下，将所述连通器的连通幅度控制为预设幅度；When the liquid level balance coefficient is less than a preset balance threshold, controlling the communication range of the communicating vessel to a preset range; 在所述液位平衡系数大于或等于预设平衡阈值的情况下，将所述连通器的连通幅度控制为预设幅度，并根据所述第一液冷机柜的液位、所述第二液冷机柜的液位以及所述液位差值确定出目标阀步控制量；When the liquid level balance coefficient is greater than or equal to a preset balance threshold, the communication amplitude of the communicating vessel is controlled to be a preset amplitude, and a target valve step control amount is determined according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference; 根据所述目标阀步控制量，对各所述进液管路中进液阀的阀步进行控制。According to the target valve step control amount, the valve step of the liquid inlet valve in each of the liquid inlet pipelines is controlled. 3.根据权利要求2所述的方法，其特征在于，通过如下公式(1)确定液位测量误差和液位平衡系数：3. The method according to claim 2, characterized in that the liquid level measurement error and the liquid level balance coefficient are determined by the following formula (1): 通过如下公式(2)确定目标阀步控制量：The target valve step control amount is determined by the following formula (2): F1＝Round(kp*(ΔLC1-ΔLC2)+ki*ΔL+kd*(ΔLC1-2ΔLC2+ΔLC3))*θ*100％ (2)；F 1 =Round(kp*(ΔL C 1-ΔL C 2)+ki*ΔL+kd*(ΔL C 1-2ΔL C 2+ΔL C 3))*θ*100% (2); 在公式(1)和(2)中，ΔLC1表示所述液位测量误差，f′表示所述液位平衡系数，L1表示所述第一液冷机柜的液位，L2表示所述第二液冷机柜的液位，F1表示所述目标阀步控制量，Round(…)表示取整函数，kp为比例系数且取值为0.12，ΔLC2表示上一周期内的液位测量误差，ki为积分系数且取值为0.15，ΔL表示所述液位差值，kd为微分系数且取值为0.2，ΔLC3表示上上周期内的液位测量误差，θ为修正系数且取值为0.1。In formulas (1) and (2), ΔL C 1 represents the liquid level measurement error, f′ represents the liquid level balance coefficient, L 1 represents the liquid level of the first liquid cooling cabinet, L 2 represents the liquid level of the second liquid cooling cabinet, F 1 represents the target valve step control amount, Round(…) represents the rounding function, kp is the proportional coefficient and its value is 0.12, ΔL C 2 represents the liquid level measurement error in the previous cycle, ki is the integral coefficient and its value is 0.15, ΔL represents the liquid level difference, kd is the differential coefficient and its value is 0.2, ΔL C 3 represents the liquid level measurement error in the previous cycle, and θ is the correction coefficient and its value is 0.1. 4.根据权利要求2所述的方法，其特征在于，在根据所述第一液冷机柜的液位、所述第二液冷机柜的液位以及所述液位差值，控制所述连通管路中连通器的运行状态以及各所述进液管路中进液阀的运行状态的步骤中，还包括：4. The method according to claim 2, characterized in that, in the step of controlling the operating state of the communicating vessel in the communicating pipeline and the operating state of the liquid inlet valve in each of the liquid inlet pipelines according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference, it further comprises: 在所述液位差值大于第二预设液位阈值的情况下，控制所述第一液冷机柜对应的进液管路中调节阀的阀步减少第一预设步数；When the liquid level difference is greater than a second preset liquid level threshold, controlling the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet to be reduced by a first preset number of steps; 在所述液位差值小于第一预设液位阈值的情况下，控制所述第二液冷机柜对应的进液管路中调节阀的阀步减少第一预设步数。When the liquid level difference is less than a first preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet is controlled to be reduced by a first preset step number. 5.根据权利要求4所述的方法，其特征在于，在所述根据所述环境温度、所述第一液冷机柜的出液温度、所述第二液冷机柜的出液温度、所述出液温度平均值和进出液温差平均值，控制所述主管路中液泵的运行状态的步骤中，包括：5. The method according to claim 4, characterized in that, in the step of controlling the operating state of the liquid pump in the main line according to the ambient temperature, the outlet liquid temperature of the first liquid cooling cabinet, the outlet liquid temperature of the second liquid cooling cabinet, the average value of the outlet liquid temperature and the average value of the inlet and outlet liquid temperature difference, it comprises: 在所述出液温度平均值小于预设出液温度阈值、且所述进出液温差平均值小于预设温差阈值的情况下，控制所述液泵的运行频率保持不变；When the average value of the outlet liquid temperature is less than the preset outlet liquid temperature threshold, and the average value of the inlet and outlet liquid temperature difference is less than the preset temperature difference threshold, controlling the operating frequency of the liquid pump to remain unchanged; 在所述根据所述第一液冷机柜的液位、所述第二液冷机柜的液位以及所述液位差值，控制所述连通管路中连通器的运行状态以及各所述进液管路中进液阀的运行状态的步骤中，还包括：In the step of controlling the operating state of the communicating vessel in the communicating pipeline and the operating state of the liquid inlet valve in each of the liquid inlet pipelines according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference, the step further includes: 在所述液位差值大于第二预设液位阈值的情况下，控制所述第二液冷机柜对应的进液管路中调节阀的阀步增加第二预设步数；When the liquid level difference is greater than a second preset liquid level threshold, controlling the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet to increase by a second preset number of steps; 在所述液位差值小于第一预设液位阈值的情况下，控制所述第一液冷机柜对应的进液管路中调节阀的阀步增加第二预设步数。When the liquid level difference is less than the first preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet is controlled to increase by a second preset step number. 6.根据权利要求1所述的方法，其特征在于，所述根据所述环境温度、所述第一液冷机柜的出液温度、所述第二液冷机柜的出液温度、所述出液温度平均值和进出液温差平均值，控制所述主管路中液泵的运行状态，包括：6. The method according to claim 1, characterized in that the controlling the operating state of the liquid pump in the main line according to the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature and the average value of the inlet and outlet liquid temperature difference comprises: 在所述出液温度平均值大于或等于预设出液温度阈值且所述进出液温差平均值小于预设温差阈值的情况下，根据所述预设温差阈值、所述环境温度、所述第一液冷机柜的出液温度、所述第二液冷机柜的出液温度以及预设第一算法，确定出目标频率控制量；When the average value of the liquid outlet temperature is greater than or equal to the preset liquid outlet temperature threshold and the average value of the inlet and outlet temperature difference is less than the preset temperature difference threshold, the target frequency control amount is determined according to the preset temperature difference threshold, the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, and a preset first algorithm; 在所述出液温度平均值大于或等于预设出液温度阈值且所述进出液温差平均值大于或等于预设温差阈值的情况下，根据所述预设温差阈值、所述环境温度、所述第一液冷机柜的出液温度、所述第二液冷机柜的出液温度以及以及预设第二算法，确定出目标频率控制量；When the average value of the liquid outlet temperature is greater than or equal to the preset liquid outlet temperature threshold and the average value of the inlet and outlet temperature difference is greater than or equal to the preset temperature difference threshold, the target frequency control amount is determined according to the preset temperature difference threshold, the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, and a preset second algorithm; 根据所述目标频率控制量，对所述液泵的运行频率进行控制。The operating frequency of the liquid pump is controlled according to the target frequency control amount. 7.根据权利要求6所述的方法，其特征在于，所述预设第一算法包括以下公式(3)：7. The method according to claim 6, characterized in that the preset first algorithm comprises the following formula (3): 所述预设第二算法包括以下公式(4)：The preset second algorithm includes the following formula (4): 在公式(3)和(4)中，F2表示所述目标频率控制量，Round(…)表示取整函数，ΔT表示所述预设温差阈值，A的取值范围为(2℃，6℃)，Th表示所述环境温度，Tout1表示所述第一液冷机柜的出液温度，Tout2表示所述第二液冷机柜的出液温度，Tset表示预设校准量。In formulas (3) and (4), F2 represents the target frequency control amount, Round(…) represents the rounding function, ΔT represents the preset temperature difference threshold, the value range of A is (2°C, 6°C), Th represents the ambient temperature, Tout1 represents the outlet liquid temperature of the first liquid cooling cabinet, Tout2 represents the outlet liquid temperature of the second liquid cooling cabinet, and Tset represents the preset calibration amount. 8.根据权利要求6所述的方法，其特征在于，在所述根据所述环境温度、所述第一液冷机柜的出液温度、所述第二液冷机柜的出液温度、所述出液温度平均值和进出液温差平均值，控制所述主管路中液泵的运行状态的步骤中，还包括：8. The method according to claim 6, characterized in that, in the step of controlling the operating state of the liquid pump in the main line according to the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature and the average value of the inlet and outlet liquid temperature difference, it also includes: 在所述出液温度平均值小于预设出液温度阈值、且所述进出液温差平均值大于或等于预设温差阈值的情况下，将所述液泵中调节阀的阀步控制为其最大值。When the average value of the liquid outlet temperature is less than the preset liquid outlet temperature threshold, and the average value of the inlet and outlet temperature difference is greater than or equal to the preset temperature difference threshold, the valve step of the regulating valve in the liquid pump is controlled to its maximum value. 9.一种电子设备，其特征在于，所述电子设备包括：9. An electronic device, characterized in that the electronic device comprises: 一个或多个处理器；one or more processors; 存储器，其上存储有一个或多个计算机程序，当所述一个或多个计算机程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现根据权利要求1-8中任一项所述的液冷机组的控制方法。A memory having one or more computer programs stored thereon, wherein when the one or more computer programs are executed by the one or more processors, the one or more processors implement the control method of the liquid cooling unit according to any one of claims 1-8. 10.一种计算机可读介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现根据权利要求1-8中任一项所述的液冷机组的控制方法。10. A computer-readable medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the control method of the liquid cooling unit according to any one of claims 1 to 8 is implemented.
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Publication number Priority date Publication date Assignee Title
US20220248571A1 (en) * 2019-10-22 2022-08-04 Huawei Technologies Co., Ltd. Liquid Cooling Heat Dissipation System, Heat Dissipation Control Method, and Control Chip
WO2024098471A1 (en) * 2022-11-08 2024-05-16 广东美的制冷设备有限公司 Water temperature control method, device, and storage medium
WO2024222561A1 (en) * 2023-04-28 2024-10-31 华为技术有限公司 Heat dissipation control system and method, controller, and cabinet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220248571A1 (en) * 2019-10-22 2022-08-04 Huawei Technologies Co., Ltd. Liquid Cooling Heat Dissipation System, Heat Dissipation Control Method, and Control Chip
WO2024098471A1 (en) * 2022-11-08 2024-05-16 广东美的制冷设备有限公司 Water temperature control method, device, and storage medium
WO2024222561A1 (en) * 2023-04-28 2024-10-31 华为技术有限公司 Heat dissipation control system and method, controller, and cabinet

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