Intelligent constant-temperature single-phase immersed data center composite liquid cooling control method and system

Abstract

The present application relates to single-phase immersion liquid cooling data processing technical field, especially provide a kind of intelligent constant temperature single-phase immersion data center composite liquid cooling control method and system, method contains temperature sensing package real-time monitoring server motherboard temperature change, temperature sensing package temperature data is converted into electrical signal, electrical signal is transmitted to data integration processor as input signal;After data integration processor receives electrical signal, internal processor is calculated according to preset algorithm, generates refrigerant flow control signal;Solenoid valve adjusts the refrigerant distribution amount of distributor according to refrigerant flow control signal, realizes the regulation and control of refrigerant flow;The phase change endothermic process of refrigerant in coil is affected by adjusted refrigerant flow, so that fluorinated liquid temperature is stable.System contains coil, server, distributor, data integration processor, server motherboard, temperature sensing package and evaporator etc.The present application data integration processor generates refrigerant flow control signal according to feedback signal, forms closed-loop control loop.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of single-phase immersion liquid cooling data processing, in particular to an intelligent constant-temperature single-phase immersion data center composite liquid cooling control method and system. BACKGROUND

[0002] With the continuous improvement of social informatization, the scale of data centers is increasing, which brings huge energy consumption problems. The energy consumption of the data center refrigeration system accounts for about 40% of the total energy consumption of the data center. In recent years, the maximum heat dissipation of the server load in the computer room has climbed to more than 20KW per cabinet, and the maximum cooling capacity per unit area of the original air-cooled computer room precision air conditioning system under ideal air supply conditions is 4KW / ㎡, which cannot meet its demand. Liquid cooling has higher cooling efficiency than traditional air cooling, but two-phase liquid cooling has problems such as slow response speed, unstable temperature control, high equipment requirements, and bubble generation in the phase change process, which can increase the failure rate of the data center motherboard system. Single-phase liquid cooling also has problems such as uneven distribution of cooling capacity of each heat generating unit and large temperature difference between each unit.

[0003] Prior art one, Chinese patent, application number 202510529095.4 discloses a data center immersion liquid cooling flame retardant method, which sets the data center in a sealed box and adds cooling liquid to the sealed box; wherein the cooling liquid includes a mixture of 70-95 parts by mass of base synthetic oil and 0.5-1 parts of additive composition; after the cooling liquid submerges the upper surface of the data center, a fluorinated compound with a boiling point not higher than 100 degrees Celsius is added to the sealed box until the fluorinated compound concentration in the sealed box reaches the preset flame retardant concentration. Although it can effectively improve the inertness and stability of the cooling liquid at a low cost, it lacks a dynamic temperature control mechanism and relies only on static immersion cooling, which cannot dynamically adjust the refrigerant flow according to the server temperature change, resulting in limited cooling efficiency; the cooling liquid composition relies on chemical flame retardancy rather than active temperature control, and relies on the concentration of fluorinated compounds to improve flame retardancy rather than preventing overheating through precise temperature regulation, which poses a risk of local hot spots; there is no closed-loop feedback system, and the temperature monitoring and flow regulation closed-loop control is not integrated, which is difficult to adapt to dynamic load changes.

[0004] The prior art two, a Chinese patent, application number 202211085078.9 discloses a data center phase change immersion liquid cooling cabinet, which comprises a cabinet, a server and a condenser pipe arranged in the cabinet, the server and the condenser pipe are immersed in a liquid zone, the condenser pipe is immersed in the liquid zone, and cooling liquid flows in the interior, the cooling liquid is located at the top of the liquid zone, the heat source surface of the server boils, when the bubbles float to the top area of the liquid zone, under the "forced convection + condensation" composite mechanism, the bubbles release heat to the condenser pipe, the bubbles do not escape the liquid surface, and the liquid top area where the condenser pipe is located presents a gas-liquid two-phase coexistence state. Although the structure is simple and convenient to use, it depends on natural phase change, the adjustment precision is low, and only passive heat dissipation through "forced convection + condensation" is realized, so that the refrigerant flow cannot be accurately controlled to adapt to different heat loads; the server level temperature regulation is not realized, the bubble condensation mechanism cannot independently adjust the temperature of the single server mainboard, and local overheating may occur; there is no intelligent flow distribution, and the heat exchange between the condenser pipe and the server lacks active flow distribution components such as a liquid distributor and an electromagnetic valve, so that the flexibility is insufficient.

[0005] At present, the prior art one and the prior art two have the problems of low cooling efficiency, local overheating and energy efficiency imbalance caused by the lack of dynamic closed-loop temperature control. Therefore, the present application provides an intelligent constant-temperature single-phase immersion data center composite liquid cooling control method and system. SUMMARY

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] In one aspect of the present application, an intelligent constant-temperature single-phase immersion data center composite liquid cooling control method is provided, which comprises the following steps:

[0008] After the data integration processor receives the temperature data converted into an electrical signal of the server mainboard, the internal processor calculates according to a preset algorithm to generate a refrigerant flow control signal; the refrigerant flow control signal is output as an adjustment instruction to the electromagnetic valve to guide its action.

[0009] In an optional embodiment, the process of generating the refrigerant flow control signal comprises the following steps:

[0010] A set of electrical signals output by a plurality of temperature sensing bags is obtained, each electrical signal corresponding to the temperature-time gradient of a specific position of the server mainboard;

[0011] The processor built-in heterogeneous computing core maps the electrical signal group to a three-dimensional heat flow channel network according to the physical position; based on the heat conduction characteristics of fluorinated liquid and the layout of the coil pipe, the decoupling superposition state heat flow is obtained to obtain the transient heat flux density scalar of each channel, and the heat flux density distribution is generated;

[0012] According to the heat flux distribution and the two-phase coil phase change hysteresis parameters, the heat absorption equivalent required by each coil unit is calculated; the heat absorption equivalent is converted into the refrigerant mass flow rate vector corresponding to the distributor branch, and output as a discrete control signal executable by the electromagnetic valve.

[0013] In an alternative embodiment, the process of outputting a discrete control signal executable by the electromagnetic valve comprises the following steps:

[0014] Input the transient heat flux scalar of each channel, each transient heat flux scalar corresponding to the thermal energy space-time distribution of a single coil service area;

[0015] According to the two-phase coil phase change hysteresis parameters, the response delay of the refrigerant from liquid to gas, the thermal inertia decay function is established; the transient heat flux scalar is pre-convolved along the time axis, and the net heat absorption flux value matched with the real-time phase change rate of the coil is output;

[0016] Based on the unit mass phase change latent heat of the refrigerant in the coil, the net heat absorption flux is converted into the instantaneous value of the refrigerant mass flow required to maintain thermal equilibrium; according to the mapping relationship between the distributor branch and the coil unit, the flow value is aggregated to generate a branch flow rate vector.

[0017] In an alternative embodiment, the process of aggregating flow values to generate a branch flow rate vector comprises the following steps:

[0018] Continuously track the working state of the compressor and the internal pressure change of the evaporator, while considering the time delay required for the refrigerant to change from liquid to gas; according to the real-time data of pressure change and time delay, the actual heat exchange value required at present is obtained, and the heat required to be supplemented in the future is estimated, and finally the net heat absorption flux value of the adjusted heat removal demand is given;

[0019] Based on the unit mass phase change latent heat constant of the refrigerant under a certain saturation pressure, the net heat absorption flux value is divided by the unit mass phase change latent heat constant to obtain the refrigerant mass flow per unit time required for current thermal equilibrium; output the refrigerant mass flow per unit time required to maintain the current thermal equilibrium, which is linearly proportional to the heat absorption flux;

[0020] According to the spatial mapping topology of the distributor branch and the coil unit, it is determined by the parallel structure of the coil in the evaporator; the flow values of multiple coil units belonging to the same distributor branch are scalar and superimposed; output the branch flow rate vector of each outlet of the distributor, and the vector dimension matches the execution port of the electromagnetic valve.

[0021] In an alternative embodiment, the process of scalar and superimposing the flow values of multiple coil units belonging to the same distributor branch comprises the following steps:

[0022] a set of output refrigerant mass flow rate values per unit time, each value corresponding to the real-time mass requirement of a single coil unit to maintain thermal balance;

[0023] According to the hard connection mapping relationship between the distributor branch and the coil unit, the physical pipe arrangement of the inner coil of the evaporator is uniquely determined; the mass flow rates of all coil units under the jurisdiction of the same distributor branch are subjected to weightless scalar algebraic sum operation, and the total mass flow rate values of each branch are output, satisfying the law of fluid continuity;

[0024] The total mass flow rate values of each branch are arranged according to the inherent spatial order of the distributor outlet, and a discrete flow rate instruction sequence is generated, which is completely isomorphic to the number of distributor outlets and the execution port of the electromagnetic valve.

[0025] In an optional implementation, the process of outputting the total mass flow rate values of each branch includes the following steps:

[0026] The outlet flow channels of all coil units under the jurisdiction of the same distributor branch are physically converged at the total pipe cross section of the distributor branch;

[0027] The mass flow rates of each coil unit automatically form a flux density distribution on the total pipe cross section according to the geometric projection proportion of the flow channel; the flux density of the total pipe cross section is subjected to area integration, and a scalar integral value is output;

[0028] The scalar integral value is directly equivalent to the steady-state output total mass flux of the distributor branch by the law of fluid continuity; the total mass flux forms a dynamic balance with the suction characteristics of the downstream compressor.

[0029] In an optional implementation, the process of outputting the scalar integral value includes the following steps:

[0030] The mass flow rates of each coil unit are automatically decomposed into normal components perpendicular to the pipe wall on the total pipe cross section of the distributor branch according to the spatial orientation angle of the outlet flow channel and the total pipe axis; all normal components are continuously distributed according to the position coordinates on the total pipe cross section, forming a flux density field;

[0031] The flux density field is subjected to flux conservation integration along the total pipe cross section; the integral output value is equivalent to the scalar of the cross-sectional total mass flux.

[0032] In an optional implementation, the temperature bag monitors the temperature change of the server mainboard in real time, and the temperature bag converts the temperature data into an electrical signal, which is transmitted to the data integration processor as an input signal.

[0033] In an optional implementation, the electromagnetic valve adjusts the refrigerant distribution amount of the distributor according to the refrigerant flow control signal, realizing the regulation and control of the refrigerant flow; the adjusted refrigerant flow acts on the phase change heat absorption process of the refrigerant in the coil, stabilizing the temperature of the fluorinated liquid.

[0034] Another aspect of the present application provides a kind of intelligent constant temperature single-phase immersion data center composite liquid cooling control system, implement the intelligent constant temperature single-phase immersion data center composite liquid cooling control method described, it includes: coil, server, distributor, gas collector, compressor, condenser, liquid tank, ball valve, pump, check valve, data integration processor, server mainboard, two-phase liquid cooling coil, solenoid valve, temperature sensing bag, evaporator.

[0035] Wherein, evaporator is provided with multiple groups of coil and server, coil is communicated with gas collector, server is arranged between adjacent coil, distributor is arranged at the cooling liquid import end of the left lower end of evaporator;The outlet end of gas collector is communicated with the inlet end of compressor through pipeline, the outlet end of compressor is communicated with the inlet end of condenser through pipeline, the outlet end of condenser is communicated with the inlet end of liquid tank through pipeline, the outlet end of liquid tank is connected with one end of ball valve through pipeline, the other end of ball valve is connected with one end of pump through pipeline, the other end of pump is connected with one end of check valve through pipeline, the other end of check valve is communicated with the import end of distributor through pipeline;

[0036] Server is composed of server mainboard, is installed between adjacent coil, and coil is communicated by multiple two-phase liquid cooling coils;

[0037] Data integration processor is connected with solenoid valve by electric signal, and solenoid valve is connected with distributor;Data integration processor is connected with multiple temperature sensing bags by electric signal, and temperature sensing bag is installed on both sides of server mainboard.

[0038] The present application realizes the establishment of closed loop temperature control system, temperature sensing bag monitors the temperature change of server mainboard, forms temperature feedback signal, data integration processor generates refrigerant flow control signal according to feedback signal, forms closed loop control loop, solenoid valve adjusts the flow of distributor in response to control signal, realizes dynamic refrigeration capacity matching;The accurate regulation and control of phase change cooling process, the phase change endothermic rate of refrigerant in coil is directly adjusted by refrigerant flow control signal, the dynamic adjustment of distributor distribution amount maintains the temperature stability of fluorinated liquid, the opening change amount of solenoid valve and the temperature change amount of mainboard form a corresponding relationship;The optimization of system response characteristics, temperature detection delay is shortened by electric signal transmission of temperature sensing bag, the preset algorithm of data integration processor realizes the rapid generation of control signal, and the linkage mechanism of solenoid valve-distributor improves the response speed of flow regulation;The improvement of thermal management precision, temperature signal, control signal, full-link closed loop control of flow regulation, dynamic balance between refrigerant phase change endothermic process and heat load of heat source, eliminate the thermal inertia influence of traditional open loop control;The enhancement of system reliability, electric signal transmission avoids the fault risk of mechanical transmission link, preset algorithm ensures the consistency of control logic, and flow grading regulation prevents system shock. BRIEF DESCRIPTION OF DRAWINGS

[0039] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the principles of the application, and are not intended to limit the application. In the drawings:

[0040] Figure 1 The intelligent constant temperature single-phase immersion data center composite liquid cooling control method flow chart provided in embodiment 1 of the application;

[0041] Figure 2 The schematic diagram of the intelligent constant temperature single-phase immersion data center composite liquid cooling control method provided in embodiment 1 of the application;

[0042] Figure 3 The process diagram of the temperature data conversion into electric signal by the temperature sensing bag provided in embodiment 2 of the application;

[0043] Figure 4 The process diagram of the refrigerant flow control signal generation provided in embodiment 4 of the application;

[0044] Figure 5 The process diagram of the refrigerant flow control provided in embodiment 11 of the application;

[0045] Figure 6 The structure schematic diagram of the intelligent constant temperature single-phase immersion data center composite liquid cooling control system provided in embodiment 12 of the application;

[0046] Figure 7 The server box structure schematic diagram provided in embodiment 12 of the application;

[0047] Figure 8 The data integration processor and point washing structure schematic diagram provided in embodiment 12 of the application;

[0048] Figure 9 The server mainboard structure schematic diagram provided in embodiment 12 of the application;

[0049] Figure 10 The block diagram of the electronic device provided by the application;

[0050] Figure 11 The computer readable storage medium block diagram provided by the application;

[0051] Reference signs: 1, coil; 2, server; 3, distributor; 4, gas collector; 5, compressor; 6, condenser; 7, liquid storage tank; 8, ball valve; 9, pump; 10, check valve; 11, data integration processor; 12, server mainboard; 13, two-phase liquid cooling coil; 14, solenoid valve; 15, temperature sensing bag; 16, evaporator; 17, central processing unit / microprocessor / master control chip; 18, storage medium; 19, data bus; 20, input / output bus / external bus / device bus; 21, display; 22, input / output device; 23, computer readable instructions; 24, non-transitory computer readable storage medium. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0053] Hereinafter, the terms "first", "second", and the like are only used for description convenience, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified and limited, the meaning of "a plurality of" is two or more.

[0054] In the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed mechanical connection, or detachable mechanical connection, or integral; or "connection" can be direct connection, or indirect connection through intermediate medium. In addition, unless otherwise explicitly specified and limited, the term "coupling" should be understood broadly, for example, "coupling" can be direct electrical connection, for example, physical contact and electrical conduction between two components, or can be understood as electrical connection between different components through printed circuit board (PCB) copper foil or wire in line configuration to transmit electrical signals; or "coupling" can be indirect electrical connection between two components through intermediate medium; or "coupling" can be electrical connection between two components through space / non-contact, for example, capacitive coupling between two components to transmit electrical signals.

[0055] In the embodiments of the present application, the orientation terms such as "up", "down", "left", "right" and the like can include but are not limited to the orientation defined by the relative placement of the components in the drawings. It should be understood that these directional terms can be relative concepts, which are used for relative description and clarification, and can change accordingly according to the change of the placement of the components in the drawings.

[0056] Embodiment 1: As shown in the figure, the embodiment of the present application provides a kind of intelligent constant-temperature single-phase immersed data center composite liquid cooling control method, comprising the following steps: Figure 1

[0057] Step S100: temperature sensing bag real-time monitoring server mainboard temperature variation, temperature sensing bag converts temperature data into electric signal, electric signal is transmitted to data integrated processor as input signal;

[0058] Step S200: after data integrated processor receives electric signal, internal processor calculates according to preset algorithm, generates refrigerant flow control signal;Refrigerant flow control signal is output to electromagnetic valve as adjustment instruction, to guide its action;

[0059] Step S300: electromagnetic valve adjusts the refrigerant distribution amount of distributor according to refrigerant flow control signal, realizes the regulation and control of refrigerant flow;The phase change endothermic process of refrigerant in the adjusted refrigerant flow coil makes the fluorinated liquid temperature stable.

[0060] In the above embodiment, the specific principle is referred to the attached Figure 2 ; This embodiment realizes the establishment of closed-loop temperature control system, temperature sensing bag monitors server mainboard temperature variation, forms temperature feedback signal, data integrated processor generates refrigerant flow control signal according to feedback signal, forms closed-loop control loop, electromagnetic valve adjusts the flow of distributor in response to control signal, realizes dynamic refrigeration capacity matching;The accurate regulation and control of phase change cooling process directly adjusts the phase change endothermic rate of refrigerant in the coil through refrigerant flow control signal, the dynamic adjustment of distributor distribution amount maintains the stability of fluorinated liquid temperature, the opening change amount of electromagnetic valve and the temperature change amount of mainboard form corresponding relationship;The optimization of system response characteristics, temperature sensing bag electric signal transmission shortens temperature detection delay, the preset algorithm of data integrated processor realizes the rapid generation of control signal, electromagnetic valve-distributor linkage mechanism improves the response speed of flow regulation;The improvement of thermal management precision, temperature signal, control signal, full-link closed-loop control of flow regulation, dynamic balance between refrigerant phase change endothermic process and heat load of heat source, eliminate the thermal inertia influence of traditional open-loop control;The enhancement of system reliability, electric signal transmission avoids the fault risk of mechanical transmission link, preset algorithm ensures the consistency of control logic, flow step regulation prevents system shock.

[0061] Embodiment 2: As shown in the figure, the embodiment of the present application provides a kind of intelligent constant-temperature single-phase immersed data center composite liquid cooling control method, comprising the following steps: Figure 3 ​As shown, on the basis of embodiment 1, the process of converting temperature data into an electrical signal by the temperature-sensing bag in step S100 provided by the embodiment of the application comprises the following steps:

[0062] Step S101: The heat generated by the server mainboard causes the heat-sensitive polymer layer embedded in the temperature-sensing bag to absorb the non-uniform heat field, the heat-sensitive polymer is composed of a fluorinated liquid compatible custom copolymer, and the molecular chain of the copolymer is folded in a specific temperature threshold;

[0063] Step S102: When the molecular chain of the heat-sensitive polymer is folded, a micro-scale shrinkage stress is generated, and the micro-scale shrinkage stress directly acts on the multi-stage linkage micro-arm structure below the polymer layer, converting the nanoscale folding energy into a micrometer-level deformation displacement;

[0064] Step S103: The multi-stage linkage micro-arm displacement extrudes the stacked piezoelectric crystal array physically coupled thereto, the internal dipoles of the stacked piezoelectric crystal array are deflected in a specific direction under mechanical stress, causing the surface charges to be asymmetrically distributed, and finally outputting an electrical signal in a nonlinear relationship with the deformation variable.

[0065] In the above embodiment, the embodiment realizes a thermo-mechanical conversion, the fluorinated liquid compatible custom copolymer triggers the molecular chain folding in a specific temperature threshold, realizes a direct conversion of temperature-deformation, and the absorption of the non-uniform heat field avoids the thermal inertia problem of the traditional metal temperature-sensing element; the nanoscale shrinkage stress generated by the molecular chain folding is amplified to a micrometer-level displacement through the multi-stage linkage micro-arm structure, ensuring that the small temperature change can be effectively captured. Mechanical-electrical signal conversion, piezoelectric crystal array coupling response, the stacked piezoelectric crystal array converts the micro-arm displacement into mechanical stress through physical coupling, and the dipole deflection realizes the conversion of strain energy to electrical energy; the asymmetric distribution of surface charges makes the output electrical signal in a nonlinear relationship with the deformation variable, enhancing the resolution of temperature mutation.

[0066] In summary, the molecular chain folding mechanism of the heat-sensitive polymer in the embodiment is combined with the multi-stage micro-arm displacement amplification, realizing a high response to small temperature changes (nanoscale thermal stress, micrometer-level displacement). The fluorinated liquid compatible polymer material avoids the corrosion problem of the traditional metal temperature-sensing bag in the immersion environment, and the physical coupling piezoelectric conversion has no aging risk of electronic components. The nonlinear response of the piezoelectric crystal array matches the dynamic demand of temperature regulation, providing a higher signal gradient in the critical temperature interval. The vertical stacking design of the heat-sensitive polymer layer, the micro-arm structure and the piezoelectric array meets the requirement of miniaturization of the sensor for the immersion liquid cooling system.

[0067] Embodiment 3: On the basis of embodiment 2, the process of outputting an electrical signal in a nonlinear relationship with the deformation variable in step S103 provided by the embodiment of the application comprises the following steps:

[0068] Step S1031: Multi-stage linkage micro-arm displacement is applied to the contact interface of the laminated piezoelectric crystal array in the form of vertical pressure;

[0069] Step S1032: When the laminated piezoelectric crystal array is under pressure, the lattice periodic distortion occurs, and the phase difference of the distortion of adjacent crystal layers generates an interference field; the interference field forces the deflection of the charge carrier pair along the interference polar axis direction;

[0070] Step S1033: The coupled dipole of the deflected charge carrier pair forms a quantum potential well channel through the crystal layer interface, which induces the energy level transition of the electron cloud, triggers the directional tunneling of the charge carriers between adjacent crystal layers; the accumulated asymmetric tunneling charges form an asymmetric accumulation at the edge electrode of the array, and the output intensity is exponentially related to the displacement.

[0071] In the above embodiment, the vertical displacement of the multi-stage linkage micro-arm of the embodiment directly converts into the periodic pressure of the crystal interface, triggers the dynamic distortion of the lattice structure; the phase difference of the distortion of adjacent crystal layers forms an interference field, realizing the coupling conversion of mechanical energy to electric field energy; the cooperative deflection in the interference polar axis direction forces the directional arrangement of the coupled dipole, providing a controllable path for charge transport. The quantum potential well induced by the arrangement of the coupled dipole reduces the interlayer potential barrier, promotes the directional tunneling of the charge carriers, realizes the efficient transmission of the charge; the energy level transition of the electron cloud enhances the tunneling probability, making the output current sensitive to the slight displacement; the asymmetric accumulation of the tunneling charges at the edge electrode forms an exponential correlation characteristic, and the current increases nonlinearly with the increase of the displacement.

[0072] In summary, the cascading effect of the lattice distortion-interference field-quantum tunneling of the embodiment converts the micron-level displacement into a wide-range electric signal, covering the detection needs from slight temperature change to severe thermal shock; the exponential input-output relationship provides a higher signal slope in the critical temperature interval (such as near the phase transition point), improving the response speed of the system to thermal mutation; the quantum tunneling is based on physical coupling rather than electronic circuit, avoiding the signal drift caused by electromagnetic interference; the solid-state response mechanism of the laminated crystal array has no wear and tear problem of moving parts, and is suitable for long-term operation needs in the immersed liquid cooling environment. The exponential correlation between the displacement and the intensity of the electric signal provides an input reference with high sensitivity and wide dynamic range for the temperature control system.

[0073] Embodiment 4: As shown in the embodiment 1, on the basis of the embodiment 1, the process of generating the refrigerant flow control signal in the step S200 provided by the embodiment of the present application comprises the following steps: Figure 4

[0074] Step S201: Obtain a set of electric signals output by a plurality of temperature sensing bags, each electric signal corresponding to the temperature-time gradient of a specific position of the server mainboard;

[0075] ​Step S202: The processor built-in heterogeneous computing core maps the group of electrical signals to a three-dimensional heat flow channel network according to physical positions; based on the heat conduction characteristics of the fluorinated liquid and the layout of the coil, the transient heat flux density scalar of each channel is obtained by decoupling and superposition state heat flow, and a heat flux density distribution is generated;

[0076] Step S203: According to the heat flux density distribution and the phase change hysteresis parameter of the two-phase coil, the heat absorption equivalent required by each coil unit is calculated; the heat absorption equivalent is converted into a refrigerant mass flow rate vector corresponding to the distributor branch, and output as a discrete control signal executable by the electromagnetic valve.

[0077] In the above embodiment, the embodiment realizes the cooperative processing of multi-source heat data, processes multi-dimensional temperature signals in parallel through a heterogeneous computing core, and improves the heat flow field modeling efficiency. Accurate decoupling of spatial heat load, combination of three-dimensional heat flow channel network and superposition state decoupling algorithm, elimination of heat cross interference, positioning of key cooling area. Adaptive flow control, dynamic decision based on real-time heat flux density and phase change hysteresis parameter, to ensure that the refrigerant distribution strictly matches the local heat load. System response optimization, discrete control signal adapts to the execution characteristics of the electromagnetic valve, reduces the adjustment delay, and improves the stability of the closed-loop control.

[0078] In summary, the embodiment realizes the dynamic thermal balance regulation and control of the immersion liquid cooling system by cascading processing of distributed temperature acquisition, heat flow network modeling, heat absorption demand decision and flow control conversion, and converting discrete temperature signals into high-precision refrigerant distribution instructions.

[0079] Embodiment 5: Based on embodiment 4, the process of generating a heat flux density distribution in step S202 provided by the embodiment of the application comprises the following steps:

[0080] Step S2021: The group of temperature-time gradient electrical signals, each electrical signal carrying the space-time thermal characteristics of the corresponding position of the server mainboard;

[0081] Step S2022: Taking each temperature sensing bag as a thermal vortex core, a free decay vortex program is established based on the low viscosity characteristics of the fluorinated liquid; by rotating phase interlocking of adjacent vortex cores, the interference noise of the heat flow superposition state is eliminated; a continuous three-dimensional thermal potential gradient field in the server immersion domain is output;

[0082] Step S2023: Cutting the potential flow field along the physical channel boundary staggered with the server and the coil, performing energy flux conservation integration on each cutting unit, and converting the continuous potential field into a transient heat flux density scalar of an independent channel.

[0083] In the above embodiment, the present embodiment realizes the spatiotemporal correlation coding of discrete temperature measurement data through the temperature-time gradient electrical signal group, providing a spatiotemporal reference for subsequent thermal flow field reconstruction; the discrete signals collected by the temperature sensing bag array are converted into thermal characteristic input quantities with spatiotemporal continuity after being processed by the phase interlocking algorithm. The free decay vortex model constructed based on the low viscosity characteristics of fluorinated liquid eliminates the superimposed noise of multiple heat sources through the vortex core rotation phase interlocking mechanism, extends the discrete temperature measurement points to a continuous three-dimensional thermal potential energy gradient field, and realizes the meshless description of the thermal flow motion in the immersion domain. The potential flow field cutting unit strictly corresponds to the physical channel boundary, and the continuous potential field is converted into discrete heat flux density scalars through the energy flux conservation integral; the strict constraint of the first law of thermodynamics is maintained to ensure the physical authenticity of the energy transfer process at the channel level scale. The final output of the transient heat flux density scalar group constitutes a complete description of the server system level heat dissipation characteristics, including spatial distribution dimension (three-dimensional channel network) and time dimension (phase-locked timing) dual thermodynamic characteristic parameters.

[0084] Embodiment 6: Based on embodiment 5, the process of outputting a discrete control signal executable by the electromagnetic valve in step S203 provided by the present embodiment comprises the following steps:

[0085] Step S2031: input the transient heat flux density scalar of each channel, and each transient heat flux density scalar corresponds to the thermal energy spatiotemporal distribution of a single coil service area;

[0086] Step S2032: according to the two-phase coil phase change hysteresis parameter, the response delay of the refrigerant from the liquid state to the gas state, a thermal inertia attenuation function is established; the transient heat flux density scalar is convolved along the time axis before phase change, and a net heat flux value matched with the real-time phase change rate of the coil is output;

[0087] Step S2033: based on the latent heat of phase change per unit mass of the refrigerant in the coil, the net heat flux is converted into the instantaneous value of the refrigerant mass flow rate required to maintain thermal equilibrium; according to the mapping relationship between the distributor branch and the coil unit, the flow rate value is aggregated to generate a branch flow rate vector.

[0088] In the above embodiment, the present embodiment accurately maps the thermal energy space-time distribution of the coil service area by inputting the channel level transient heat flux scalar. In combination with the phase change hysteresis characteristics of the two-phase coil, a thermal inertia decay function is used for pre-phase change lead convolution, so that the net heat absorption flux value is synchronized with the refrigerant phase change process in real time, eliminating the timing mismatch between heat flow fluctuations and phase change delay. Based on the unit mass phase change latent heat parameter of the refrigerant, the net heat absorption flux is converted into the instantaneous value of the mass flow rate required to maintain thermal balance. This conversion process strictly follows the energy equivalence relationship between phase change latent heat and heat flux density, ensuring the energy conservation of the refrigerant flow control signal and the heat load change. According to the mapping relationship between the distributor branch and the coil unit, the discretized mass flow rate value is aggregated into a branch flow rate vector. This vector directly corresponds to the executable discrete control signal of the electromagnetic valve array, realizing the accurate distribution of refrigerant flow in the spatial dimension, adapting to the dynamic adjustment needs of the non-uniform thermal field in the server immersion domain. The final output branch flow rate vector constitutes a complete electromagnetic valve control instruction set, and the time resolution (pre-phase change lead convolution timing) and spatial resolution (distributor branch mapping) together ensure the quick response capability of the refrigerant system to transient heat load.

[0089] In the embodiment 6, the step S2033 of generating the branch flow rate vector from the aggregated mass flow rate values comprises the following steps:

[0090] Step S20331: continuously track the working state of the compressor and the internal pressure change of the evaporator, and consider the time delay required for the refrigerant to change from liquid to gas; according to the real-time data of pressure change and time delay, obtain the actual heat exchange value required at present, and estimate the heat to be supplemented in the future, and finally give the net heat absorption flux value of the adjusted heat removal demand;

[0091] Step S20332: based on the unit mass phase change latent heat constant of the refrigerant under a certain saturation pressure, divide the net heat absorption flux value by the unit mass phase change latent heat constant to obtain the refrigerant mass flow rate per unit time required for current thermal balance; output the refrigerant mass flow rate per unit time required for maintaining current thermal balance, which is linearly proportional to the heat absorption flux;

[0092] Step S20333: according to the spatial mapping topology of the distributor branch and the coil unit, which is determined by the parallel structure of the evaporator coil; superimpose the flow values of multiple coil units belonging to the same distributor branch; output the branch flow rate vector of each outlet of the distributor, and the vector dimension matches the electromagnetic valve execution port.

[0093] In the above embodiment, the net heat flux value of the present embodiment is corrected by phase change hysteresis, and then converted into mass flow instantaneous value by the constant of phase change latent heat per unit mass of refrigerant, to ensure that the heat removal demand and the refrigerant flow strictly match, and to maintain the linear proportional relationship of the energy transfer process. According to the spatial mapping topology of the distributor branch and the coil unit, the flow of the parallel coil units is performed by scalar and superposition, to realize the coupling calculation of the multi-branch heat load in the evaporator, and to ensure that the flow distribution and the spatial heat distribution are accurately corresponding. The generated flow rate vector of the distributor outlet has the same dimension as the execution port of the electromagnetic valve, so that the flow control signal has the ability of direct driving, and adapts to the dynamic adjustment demand of the multi-branch parallel structure of the evaporator. The finally output flow rate vector constitutes the standardized interface of the electromagnetic valve array execution, and the numerical accuracy and the topology logic together ensure the real-time response ability of the refrigeration system to the non-uniform heat field.

[0094] Embodiment 8: Based on embodiment 7, the process of performing scalar and superposition on the flow values of the multiple coil units belonging to the same distributor branch in step S20333 provided by the present embodiment comprises the following steps:

[0095] Step S203331: output a set of refrigerant mass flow values per unit time, each value corresponding to the real-time mass demand of a single coil unit to maintain heat balance;

[0096] Step S203332: according to the hard connection mapping relationship between the distributor branch and the coil unit, the physical pipe arrangement of the coil parallel in the evaporator is uniquely determined; the mass flow of all coil units under the jurisdiction of the same distributor branch is operated by weightless scalar algebraic sum, and the total mass flow value of each branch is output to meet the law of fluid continuity;

[0097] Step S203333: arrange the total mass flow values of each branch according to the inherent spatial order of the distributor outlet, to generate a discrete flow rate instruction sequence which is completely isomorphic with the number of distributor outlets and the execution port of the electromagnetic valve.

[0098] In the above embodiment, the embodiment realizes the flow coupling calculation of the parallel coil system by performing scalar algebra and operation on the real-time mass demand flow of the single coil unit; follows the fluid continuity law to ensure the accurate matching of the total flow of the distributor branch and the conveying capacity of the downstream pipeline. Based on the hard connection mapping relationship between the distributor branch and the coil unit, the logical consistency of the internal physical pipeline arrangement of the evaporator is maintained; the operation process does not introduce weight correction, and the fluid distribution characteristics of the original pipeline structure are completely retained. The flow rate instruction sequence generated according to the inherent spatial order of the distributor outlet forms a strict isomorphism relationship with the electromagnetic valve control port of the execution terminal; the mapping ensures that the control signal can directly drive the actuator without additional protocol conversion or signal processing. The final output discrete flow rate instruction sequence not only meets the local thermal balance demand, but also ensures the total mass flow conservation of the entire refrigeration circuit through scalar superposition operation, thereby providing a basic guarantee for the system-level energy balance.

[0099] In the embodiment 9, the process of outputting the total mass flow value of each branch in the step S203332 based on the embodiment 8 comprises the following steps.

[0100] Step S2033321: The outlet flow channels of all coil units under the jurisdiction of the same distributor branch are physically converged at the total pipe cross section of the distributor branch;

[0101] Step S2033322: The mass flow of each coil unit automatically forms a flux density distribution on the total pipe cross section according to the geometric projection proportion of the flow channel; the area integral of the flux density of the total pipe cross section is performed to output the scalar integral value;

[0102] Step S2033323: The scalar integral value is directly equivalent to the steady-state output total mass flux of the distributor branch by the fluid continuity law; the total mass flux forms a dynamic balance with the suction characteristics of the downstream compressor.

[0103] In the above embodiment, the embodiment establishes the geometric boundary condition of multi-channel fluid mixing through the physical convergence process of the coil unit outlet flow channel at the total pipe of the distributor branch, ensures that the flux density distribution of the convergence cross section is consistent with the true flow field characteristics. Based on the flux density distribution on the total pipe cross section, the area integral operation is performed to convert the output flow of the discrete coil unit into a scalar integral value of continuous medium mechanics, realizing the mathematical conversion from the micro flow field characteristics to the macro flow parameter. The cross-sectional area integral value is directly mapped to the total mass flux of the distributor branch by the fluid continuity law, ensuring the mass conservation characteristics of the convergence process and establishing a dynamic balance relationship with the suction characteristics of the downstream compressor. The output total mass flux serves as a key parameter connecting the evaporator branch and the compressor subsystem, and provides accurate boundary conditions for the global mass flow balance of the refrigeration cycle.

[0104] Embodiment 10: Based on Embodiment 9, the process of outputting the scalar integral value in step S2033322 provided by the embodiment of the application comprises the following steps:

[0105] Step S20333221: The mass flow of each coil unit is automatically decomposed into a normal component perpendicular to the pipe wall according to the spatial orientation angle between the outlet flow channel and the axis of the manifold; all the normal components are continuously distributed according to the position coordinates on the manifold section to form a flux density field;

[0106] Step S20333222: The flux conservation integral is performed on the flux density field in the whole section; the integral output value is equivalent to the scalar of the total mass flux of the section.

[0107] In the above embodiment, the mass flow of each coil unit is decomposed into a normal component perpendicular to the pipe wall according to the spatial orientation angle between the outlet flow channel and the axis of the manifold, and a vector field expression form strictly matched with the geometric structure of the manifold is established. Through the continuous spatial distribution of the normal component, a flux density field on the manifold section is formed, the contribution characteristics of each coil unit to the total mass flow are completely retained, and the mathematical mapping from the discrete flow channel to the continuous flow field is realized. The integral is performed on the flux density field in the whole section to ensure that the local flux distribution strictly follows the mass conservation principle, and the output result directly represents the steady scalar value of the total mass flux of the section. The total mass flux scalar output by the integral constitutes a key coupling parameter of the evaporator branch and the downstream system, and provides an accurate physical benchmark for the dynamic balance of the refrigerant flow.

[0108] Embodiment 11: As shown in the following table, based on Embodiment 10, the process of realizing the regulation of the refrigerant flow in step S300 provided by the embodiment of the application comprises the following steps: Figure 5

[0109] Step S301: The electromagnetic valve coil current is controlled by a discrete control signal to excite an axially constrained magnetic field in the ferrite magnetic core; the magnetic field gradient forces the permanent magnet valve core to have a millimeter-level precise displacement in the axial direction, and the displacement amount is rigidly linearly mapped with the current intensity;

[0110] Step S302: The displacement of the valve core is synchronously conducted to the inlet of each branch of the distributor through a conical top rod mechanism, the conical surface of the top rod and the branch valve seat form an annular converging flow channel, and the cross-sectional area of the flow channel decreases according to the inverse square law with each unit increase in the displacement amount;

[0111] Step S303: The converging flow channel produces a viscous throttling effect on the refrigerant fluid, the throttling strength is positively correlated with the cross-sectional area attenuation, and a physical modified value of the output branch mass flux is output;

[0112] ​Step S304: The branch mass flux is distributed to the parallel coils via the distributor. The change in branch mass flux directly changes the latent heat exchange rate of the refrigerant phase change in the coils. The exchange rate is dynamically matched with the server heat generation rate, so that the temperature of the fluorinated liquid in the immersion area converges to the set threshold.

[0113] In the above embodiments, this embodiment utilizes the axial confinement magnetic field excited in the ferrite core by the current of the solenoid valve coil to achieve millimeter-level linear conversion of electrical signals to valve core displacement, establishing a deterministic mapping relationship between control signals and mechanical actions. The axial displacement of the valve core is transmitted through a conical push rod mechanism, forming the inverse square law area attenuation characteristic of the annular contraction channel, realizing the amplification and control effect of micro-displacement on the flow cross-sectional area. The viscous throttling effect generated by the contraction channel and the cross-sectional area attenuation form a positive feedback relationship, converting the mechanical displacement into a quantifiable mass flux correction value. The change in branch mass flux is distributed through a distributor, directly modulating the latent heat exchange rate of phase change in the parallel coil, forming a closed-loop temperature control capability that adaptively matches the server's heat generation rate. The solenoid valve current-displacement-flow channel cross-sectional area-mass flux-heat exchange rate constitute a five-level series control chain, realizing the complete transmission of electrical signals to thermodynamic parameters, ultimately achieving stable temperature control in the immersion domain.

[0114] Example 12: As Figure 6-9 As shown, based on Examples 1-11, the intelligent constant temperature single-phase immersion data center composite liquid cooling control system provided by the present invention includes: coil 1, server 2, liquid distributor 3, gas collection pipe 4, compressor 5, condenser 6, liquid storage tank 7, ball valve 8, pump 9, one-way valve 10, data integration processor 11, server motherboard 12, two-phase liquid cooling coil 13, solenoid valve 14, temperature sensing bulb 15, and evaporator 16.

[0115] The evaporator 16 is equipped with multiple sets of coils 1 and servers 2. The coils 1 are connected to the gas collecting pipe 4. The servers 2 are located between adjacent coils 1. The distributor 3 is located at the coolant inlet at the lower left end of the evaporator 16. The outlet end of the gas collecting pipe 4 is connected to the inlet end of the compressor 5 through a pipe. The outlet end of the compressor 5 is connected to the inlet end of the condenser 6 through a pipe. The outlet end of the condenser 6 is connected to the inlet end of the liquid storage tank 7 through a pipe. The outlet end of the liquid storage tank 7 is connected to one end of the ball valve 8 through a pipe. The other end of the ball valve 8 is connected to one end of the pump 9 through a pipe. The other end of the pump 9 is connected to one end of the one-way valve 10 through a pipe. The other end of the one-way valve 10 is connected to the inlet end of the distributor 3 through a pipe.

[0116] Server 2 consists of server motherboard 12, which is installed between adjacent coils 1. Coil 1 is composed of multiple two-phase liquid-cooled coils 13 connected together.

[0117] The data integration processor 11 is connected with the electromagnetic valve 14 through an electric signal, and the electromagnetic valve 14 is connected with the distributor 3; the data integration processor 11 is connected with a plurality of temperature sensing bulbs 15 through an electric signal, and the temperature sensing bulbs 15 are installed on both sides of the server mainboard 12.

[0118] In the above embodiment, the cooling circulation process of the embodiment is as follows: the liquid coolant is distributed into the coil 1 in the evaporator 16 through the distributor 3; the coolant is vaporized after absorbing the heat generated by the server 2, and the vaporized medium is collected through the gas collector 4; the high-temperature gaseous medium is pressurized through the compressor 5 and then enters the condenser 6; the high-temperature gaseous medium is condensed into liquid state in the condenser 6 by releasing heat; the liquid medium is stored in the liquid storage tank 7, and then is transported by the pump 9 after the flow is adjusted by the ball valve 8; the backflow is prevented by the one-way valve 10, and finally returns to the distributor 3 to complete the circulation.

[0119] Temperature control system: the temperature sensing bulb 15 monitors the temperature of the server mainboard 12 in real time, the data integration processor 11 receives the temperature signal and controls the electromagnetic valve 14, and the electromagnetic valve 14 adjusts the distribution amount of the coolant of the distributor 3.

[0120] The embodiment realizes precise temperature control of the server components, improves the heat dissipation efficiency through immersion cooling, significantly improves the heat transfer coefficient through two-phase heat exchange; the one-way valve 10 prevents the backflow of the medium, the ball valve 8 provides flow adjustment guarantee, the multi-loop design enhances the system redundancy; the plurality of coils 1 in the evaporator 16 are connected in parallel to improve the heat exchange area, the compressor 5 and the condenser 6 system realize heat recovery, the precise control of the electromagnetic valve 14 reduces the energy consumption; the symmetric arrangement of the distributor 3 and the gas collector 4, the compact arrangement of the server 2 and the coil 1, and the centralized control of the data integration processor 11; through the above structure and control mode, the efficient cooling and precise temperature control of the data center equipment are realized.

[0121] The embodiment is a kind of single-phase immersion liquid cooling and two-phase cooling coil combined intelligent temperature control system composite cooling system;It is mainly composed of the box of multiple servers 2, data integration processor 11, condenser 6, compressor 5, ball valve 8, one-way valve 10, liquid storage tank 7 and pump 9 as shown in Figure 6 The box part of the server 2 is composed of the server mainboard 12, two-phase liquid cooling coil 13, distributor 3, gas collector 4 as shown in Figure 7 The server 2 works to generate a large amount of heat, and the temperature of the cooling liquid rises, and the heat is transferred to the refrigerant liquid in the coil 1 through the two-phase liquid cooling coil 13, and the refrigerant absorbs heat and phase changes to take away a large amount of heat. The refrigerant gas is compressed, condensed back to the liquid storage tank 7 and reenters the distributor 3, completing the entire cycle.

[0122] Server 2 is completely submerged in single-phase fluorinated coolant. Heat from server 2 is rapidly transferred to the fluorinated coolant, causing server 2's temperature to decrease. Temperature sensors 15 are distributed around the server motherboard 12. Figure 8 As shown, when the heat generation of the data center increases, the temperature sensing bulb 15 generates an electrical signal that is fed back to the data integration processor 11. After receiving the electrical signal, the internal processor of the data integration processor 11 calculates and feeds back the required refrigerant flow rate according to the settings. The data integration processor 11 sends out an electrical signal, and the solenoid valve 14 receives the electrical signal to precisely regulate the refrigerant entering the distributor 3.

[0123] Structurally, this embodiment adopts single-phase immersion liquid cooling to avoid uneven temperature distribution caused by two-phase phase change; the cooling coil 1 and the single-phase immersion liquid fluoride are in direct contact to avoid the decrease in heat dissipation rate caused by multi-structure heat conduction, and the composite cooling response speed is faster.

[0124] This embodiment employs a design combining single-phase immersion and two-phase cooling coils. The heating element is completely immersed in the single-phase fluorinated coolant, and heat is transferred to the coolant through heat conduction and convection, causing the fluorinated coolant temperature to rise (relying solely on heat absorption due to temperature change, i.e., sensible heat). The heat absorbed by the coolant is then absorbed by the low-temperature refrigerant in coil 1 through heat conduction and convection. The refrigerant in coil 1 undergoes a phase change, absorbing heat and thus transferring it from the heat-generating element to the fluorinated coolant and then to the refrigerant.

[0125] Data centers generate a large amount of heat. Temperature sensor 15 receives temperature changes and generates an electrical signal, which is sent to the data processing unit. The processor generates an electrical signal, which regulates the refrigerant flow in coil 1 via solenoid valve 14. The refrigerant in coil 1 responds quickly, absorbing heat and changing from liquid to gas, thus dissipating a large amount of heat. When the heat generation of server 2 increases, it reacts rapidly to maintain the temperature of the single-phase immersion liquid fluorinated liquid within a certain range. The gaseous refrigerant in coil 1 is collected through gas collector 4, and then condensed into a room-temperature liquid by compressor 5 and condenser 6. It then enters the liquid storage tank 7 for redistribution, completing the cycle.

[0126] The server body 12 is directly immersed in single-phase coolant. The internal space of the enclosure is filled with single-phase coolant, and the fluorinated single-phase coolant can quickly conduct heat to the coolant coil 1. The single-phase immersion combined with the intelligently controlled two-phase liquid cooling coil 13 can keep the entire server 2 system within the optimal operating temperature range, avoiding uneven temperature distribution among heat-generating modules and temperature rise caused by excessive heat generation.

[0127] Compared with the traditional air cooling process, the PUE value of the embodiment is lower, the single-phase immersion cooling has lower requirements for the server box, and the use amount of the fluorinated liquid is lower. The structure is simple and convenient to operate, the server room safety is higher, the operation is simpler, and the maintenance cost is low. The entire device has smaller noise and smaller volume compared with the air cooling device, thereby saving the construction cost and maintenance cost of the server room. The entire design selects the coil and the single-phase immersion liquid to directly contact, so that heat can be quickly conducted. The temperature sensing bag, the data integration processor, and the electromagnetic valve jointly act to effectively cope with rapid heat generation. Only the refrigerant flow can be controlled to ensure the temperature balance of the heat generation unit and ensure that the system is in the best working range.

[0128] Figure 10 A block diagram of an exemplary electronic device suitable for implementing embodiments of the present application is shown.

[0129] The electronic device can include a central processor / microprocessor / master control chip, etc. 17; a storage medium 18 coupled to the central processor / microprocessor / master control chip, etc. 17, and storing computer executable instructions therein for performing the steps of various methods of embodiments of the present application when executed by the processor.

[0130] The central processor / microprocessor / master control chip, etc. 17 can include, but is not limited to, for example, one or more processors or microprocessors, etc.

[0131] The storage medium 18 can include, but is not limited to, for example, random access memory (RAM), read only memory (ROM), flash memory, EPROM memory, EEPROM memory, registers, computer storage media (such as hard disks, floppy disks, solid state drives, removable disks, CD-ROMs, DVD-ROMs, Blu-ray discs, etc.).

[0132] In addition, the electronic device can also include (but not limited to) a data bus 19, an input / output bus / external bus / device bus, etc. 20, a display 21, and an input / output device 22 (such as a keyboard, a mouse, a speaker, etc.), etc.

[0133] The central processor / microprocessor / master control chip, etc. 17 can communicate with external devices (21, 22, etc.) via a wired or wireless network (not shown) through the I / O bus 20.

[0134] The storage medium 18 can also store at least one computer executable instruction for performing the steps of various functions and / or methods in the embodiments described in the present technology when executed by the central processor / microprocessor / master control chip, etc. 17.

[0135] In one embodiment, the at least one computer-executable instruction can also be compiled or composed into a software product, in which one or more computer-executable instructions are executed by a processor to perform the steps of the various functions and / or methods described in the embodiments of the present technology.

[0136] Figure 11 A schematic diagram of a computer-readable storage medium according to an embodiment of the present application is shown.

[0137] As Figure 11 shown, a non-transitory computer-readable storage medium 24 stores instructions, for example, computer-readable instructions 23. When the computer-readable instructions 23 are executed by a processor, the various methods described above can be performed. The non-transitory computer-readable storage medium includes, but is not limited to, for example, a volatile memory and / or a non-volatile memory. The volatile memory can include, for example, a random access memory (RAM), a cache, and / or the like. The non-volatile memory can include, for example, a read only memory (ROM), a hard disk, a flash memory, and / or the like. For example, the non-transitory computer-readable storage medium 24 can be connected to a computing device such as a computer, and then, when the computing device executes the computer-readable instructions 23 stored on the non-transitory computer-readable storage medium 24, the various methods described above can be performed.

[0138] In several embodiments provided by the present application, it should be understood that the disclosed system and method can be implemented in other manners. For example, the embodiments of the system described above are merely schematic. For example, the division of the units is only a logical function division. There can be another division manner for the actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units can be indirect couplings or communication connections through some interfaces, and can be in electrical, mechanical or other forms.

[0139] The units described as separated components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments of the present application.

[0140] In addition, each functional unit in the embodiments of the present application can be integrated in one processing unit, or each unit can exist physically as separate units, or two or more units can be integrated in one unit. The above integrated unit can be implemented in the form of hardware, or in the form of a software functional unit.

[0141] If the integrated unit is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the present application or the entire or part of the technical solutions that essentially contribute to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for executing all or part of the steps of the various embodiment methods of the present application by a computer device (which can be a personal computer, a server, or a network device, etc.). The aforementioned storage medium includes a U disk, a mobile hard disk, a read-only memory (English full name: Read-Only Memory, English abbreviation: ROM), a random access memory (English full name: Random Access Memory, English abbreviation: RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0142] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for intelligent constant temperature single-phase immersion data center composite liquid cooling control, characterized in that, Comprising the following steps: After the data integration processor receives the temperature data converted electrical signal of the server motherboard, the internal processor calculates according to the preset algorithm to generate a refrigerant flow control signal; The refrigerant flow control signal is output as an adjustment instruction to the electromagnetic valve to guide its action; The process of generating a refrigerant flow control signal comprises the following steps: Obtain a set of electrical signals output by multiple temperature sensing bags, each electrical signal corresponding to the temperature-time gradient of a specific position of the server motherboard; The processor built-in heterogeneous computing core maps the electrical signal group to a three-dimensional heat flow channel network according to the physical position; Based on the heat conduction characteristics of fluorinated liquid and the layout of the coil, the superposition state heat flow is decoupled to obtain the transient heat flux density scalar of each channel, and the heat flux density distribution is generated; According to the heat flux density distribution and the phase change hysteresis parameter of the two-phase coil, the heat absorption equivalent required by each coil unit is calculated; The heat absorption equivalent is converted into the refrigerant mass flow rate vector corresponding to the distributor branch, and is output as a discrete control signal executable by the electromagnetic valve.

2. The intelligent thermostatic single-phase submerged data center composite fluid cooling control method of claim 1, wherein, The process of outputting a discrete control signal executable by the electromagnetic valve comprises the following steps: Input the transient heat flux density scalar of each channel, and each transient heat flux density scalar corresponds to the thermal energy space-time distribution of a single coil service area; According to the response delay of the refrigerant from the liquid state to the gas state according to the two-phase coil phase change hysteresis parameter, a thermal inertia attenuation function is established; The transient heat flux density scalar is pre-convoluted along the time axis, and a net heat absorption flux value matched with the real-time phase change rate of the coil is output; Based on the unit mass phase change latent heat of the refrigerant in the coil, the net heat absorption flux is converted into the instantaneous value of the refrigerant mass flow required to maintain thermal equilibrium; According to the mapping relationship between the distributor branch and the coil unit, the flow value is aggregated to generate a branch flow rate vector.

3. The intelligent thermostatic single-phase submerged data center composite fluid cooling control method of claim 2, wherein, The process of aggregating the flow value to generate a branch flow rate vector comprises the following steps: Continuously track the working state of the compressor and the internal pressure change of the evaporator, while considering the time delay required for the refrigerant to change from a liquid state to a gas state; According to the real-time data of pressure change and time delay, the current actual heat exchange value required is obtained, and the heat required to be supplemented in the future is estimated, and finally the net heat absorption flux value of the adjusted heat removal demand is given; Based on the unit mass phase change latent heat constant of the refrigerant under a certain saturation pressure, the net heat absorption flux value is divided by the unit mass phase change latent heat constant to obtain the refrigerant mass flow per unit time required for current thermal equilibrium; Output the refrigerant mass flow per unit time required to maintain current thermal equilibrium, which is linearly proportional to the heat absorption flux; According to the spatial mapping topology of the distributor branch and the coil unit, it is determined by the parallel structure of the coil in the evaporator; The flow values of multiple coil units belonging to the same distributor branch are scalar and superimposed; Output the branch flow rate vector of each outlet of the distributor, and the vector dimension matches the execution port of the electromagnetic valve.

4. The intelligent thermostatic single-phase submerged data center composite fluid cooling control method of claim 3, wherein, The process of superimposing the flow values of multiple coil units belonging to the same distributor branch comprises the following steps: Output a set of refrigerant mass flow per unit time values, each value corresponding to the real-time mass demand of a single coil unit to maintain thermal equilibrium; According to the hard connection mapping relationship between the distributor branch and the coil unit, the physical pipe arrangement of the coil in the evaporator is uniquely determined; the mass flow of all coil units under the jurisdiction of the same distributor branch is subjected to weightless scalar algebraic operation, and the total mass flow value of each branch is output, satisfying the fluid continuity law; The total mass flow value of each branch is arranged according to the inherent spatial sequence of the distributor outlet, and a discrete flow rate instruction sequence is generated which is completely isomorphic to the number of distributor outlets and the electromagnetic valve execution port.

5. The intelligent thermostatic single-phase submerged data center composite fluid cooling control method of claim 4, wherein, The process of outputting the total mass flow value of each branch includes the following steps: The outlet flow channels of all coil units under the jurisdiction of the same distributor branch are physically converged at the total pipe cross section of the distributor branch; The mass flow of each coil unit automatically forms a flux density distribution on the total pipe cross section according to the geometric projection ratio of the flow channel; The scalar integral value is directly equivalent to the steady-state output total mass flux of the distributor branch by the fluid continuity law; the total mass flux and the suction characteristics of the downstream compressor form a dynamic balance.

6. The intelligent thermostatic single-phase submerged data center composite fluid cooling control method of claim 5, wherein, The process of outputting the scalar integral value includes the following steps: The mass flow of each coil unit is automatically decomposed into a normal component perpendicular to the pipe wall on the total pipe cross section of the distributor branch according to the spatial orientation angle of its outlet flow channel and the total pipe axis; all normal components are continuously distributed on the total pipe cross section according to the position coordinates, forming a flux density field; Perform flux conservation integral on the flux density field along the total pipe cross section; the integral output value is equivalent to the cross-sectional total mass flux scalar.

7. The intelligent thermostatic single-phase submerged data center composite fluid cooling control method of claim 1, wherein, The temperature bag monitors the temperature change of the server mainboard in real time, and converts the temperature data into an electrical signal. The electrical signal is transmitted to the data integration processor as an input signal.

8. The intelligent thermostatic single-phase submerged data center composite fluid cooling control method of claim 1, wherein, The electromagnetic valve adjusts the refrigerant distribution amount of the distributor according to the refrigerant flow control signal, realizing the regulation and control of the refrigerant flow; the adjusted refrigerant flow acts on the phase change heat absorption process of the refrigerant in the coil, stabilizing the temperature of the fluorinated liquid.

9. An intelligent thermostatic single-phase immersion data center composite liquid cooling control system, implementing the intelligent thermostatic single-phase immersion data center composite liquid cooling control method according to any one of claims 1 to 8, characterized in that, It includes: coil, server, distributor, gas collector, compressor, condenser, liquid tank, ball valve, pump, check valve, data integration processor, server mainboard, two-phase liquid cooling coil, electromagnetic valve, temperature bag, evaporator; Among them, the evaporator is provided with multiple groups of coils and servers, the coils are connected with the gas collector, the servers are arranged between adjacent coils, and the distributor is arranged at the left lower end of the evaporator; the outlet end of the gas collector is connected with the inlet end of the compressor through a pipeline, the outlet end of the compressor is connected with the inlet end of the condenser through a pipeline, the outlet end of the condenser is connected with the inlet end of the liquid tank through a pipeline, the outlet end of the liquid tank is connected with one end of the ball valve through a pipeline, the other end of the ball valve is connected with one end of the pump through a pipeline, the other end of the pump is connected with one end of the check valve through a pipeline, and the other end of the check valve is connected with the inlet end of the distributor through a pipeline; The server is composed of a server mainboard and is installed between adjacent coils, and the coils are connected by multiple two-phase liquid cooling coils; The data integration processor is connected with the electromagnetic valve through an electrical signal, and the electromagnetic valve is connected with the distributor; the data integration processor is connected with multiple temperature bags through an electrical signal, and the temperature bags are installed on both sides of the server mainboard.

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