Method and device for controlling heat interaction between interconnected and communicating double cold stations

Abstract

The application provides a method and device for heat interaction control of interconnection and intercommunication of double cold stations, wherein the method comprises the following steps: based on a double cold station interconnection and intercommunication model, a Brinkman equation and a heat conduction equation are used to determine the flow rate of liquid in an interconnection pipeline and the target outlet water temperature of a first cold station; based on the target outlet water temperature of the first cold station and the actual outlet water temperature of the first cold station, an adjustment scheme of a balance valve on the interconnection pipeline and / or a second cold station is determined through a group control system; wherein the double cold station interconnection and intercommunication model comprises the first cold station and the second cold station connected through the interconnection pipeline, and the balance valve is arranged on the interconnection pipeline. The application simulates the optimal control temperature and water flow rate by combining the Brinkman equation and the heat conduction equation, realizes intelligent control of the double cold stations under the intercommunication condition, improves the utilization rate of the cooling capacity of the cold stations, and improves the stability of the load environment of the cold stations.

Description

Technical Field

[0001] This application relates to the field of cold source control technology, and in particular to a method and apparatus for thermal interaction control of interconnected dual cold stations. Background Technology

[0002] Data centers generate significant heat and require continuous operation with near-constant temperature and humidity, thus demanding high reliability from their cooling sources. To enhance the reliability of data center cooling systems, a dual-cooling-station redundancy model is typically designed. This involves constructing independent cooling stations directly connected via interconnecting pipes. A balancing valve on the interconnecting pipes controls the connection. In the event of a severe failure at a single cooling station causing a cooling interruption, the backup station can exchange heat via the interconnecting pipes, ensuring effective cooling of the data center. Current technical solutions do not consider the actual operating conditions of the cooling stations on either side of the interconnecting pipes and employ a uniform model during construction.

[0003] Therefore, the following problems exist in actual operation:

[0004] 1. When the heat load is uneven on both sides of the channel, the unbalanced water flow in the interconnecting pipes leads to a higher load on the high-load machine room, while the low-load side experiences temperature control imbalance and high temperatures. Actual on-site testing has verified that, under these conditions, the energy consumption of the interconnected cooling station mode is higher than that of the individual cooling station mode.

[0005] 2. When the output chilled water temperature, control pressure, and circulating water volume of the two chiller stations are kept consistent, and the loads of the two machine rooms are approximately equal, heat exchange cannot occur due to the lack of conditions for heat exchange, resulting in ineffective cold source interconnection.

[0006] 3. In accordance with international standards, the chilled water storage tank is configured as an emergency cold source. In the interconnection mode, if the chilled water storage tank on one side of the interconnected pipeline fails to start, the main storage tank will be activated. If the storage tank on the other side fails to start, the machine room will experience high temperature.

[0007] Therefore, in actual use, improper adjustment of the control parameters of the dual cooling station can lead to hydraulic imbalance on both sides of the interconnecting pipeline, making heat exchange impossible. This has become a technical problem that the industry urgently needs to solve. Summary of the Invention

[0008] To address the problems existing in the prior art, this application provides a method and apparatus for thermal interaction control of interconnected dual cooling stations.

[0009] In a first aspect, this application provides a method for thermal interaction control of interconnected dual cooling stations, comprising:

[0010] Based on the interconnection model of the two cooling stations, the Brinkman equation and the heat conduction equation are used to determine the flow velocity of the liquid in the interconnection pipeline and the target outlet water temperature of the first cooling station.

[0011] Based on the target outlet water temperature of the first cooling station and the actual outlet water temperature of the first cooling station, the adjustment scheme of the balancing valve on the interconnecting pipeline and / or the second cooling station is determined through the group control system.

[0012] The dual-cooling-station interconnection model is based on the dual-cooling-station interconnection structure, which includes a first cooling station and a second cooling station connected by interconnection pipes, and a balancing valve is installed on the interconnection pipes.

[0013] Optionally, the determination of the liquid flow rate in the interconnected pipeline and the target outlet water temperature of the first cooling station based on the dual-cooling-station interconnection model, using the Brinkman equation and the heat conduction equation, includes:

[0014] Set the boundary conditions and initial values ​​of relevant parameters for the Brinkman equation;

[0015] Based on the Brinkman equation, the flow velocity of the liquid in the interconnected pipes is determined;

[0016] Based on the heat conduction equation and the flow rate of the liquid in the interconnected pipes, the target outlet temperature of the liquid in the interconnected pipes is determined.

[0017] The temperature of the liquid in the interconnected pipes in the Brinkman equation is updated to the target outlet temperature of the liquid in the interconnected pipes. The pressure in the interconnected pipes is updated in a stepwise manner. Based on the Brinkman equation and the heat conduction equation, the flow rate of the liquid in the interconnected pipes and the target outlet temperature of the liquid in the interconnected pipes are determined iteratively.

[0018] Until the pressure inside the interconnected pipe reaches the boundary condition, the final determined target outlet water temperature of the liquid inside the interconnected pipe is taken as the target outlet water temperature of the first cooling station.

[0019] The boundary condition is that the pressure inside the interconnecting pipe reaches the current outlet water pressure of the first cooling station; the initial values ​​of the relevant parameters include the initial value of the pressure inside the interconnecting pipe and the initial value of the temperature of the liquid inside the interconnecting pipe.

[0020] Optionally, the formula corresponding to the Brinkman equation is:

[0021]

[0022] in, u is the velocity vector of the liquid inside the interconnected pipes, p is the pressure inside the interconnected pipes, η is the dynamic viscosity of the liquid inside the interconnected pipes, I is the momentum, T is the temperature inside the interconnected pipes, Q is a ensemble source term, ρ is the density of the liquid inside the interconnected pipes, and g is the acceleration due to gravity. for The transpose of .

[0023] Optionally, the formula corresponding to the heat conduction equation is:

[0024]

[0025] in, Represents the Laplace operator, where T is the temperature inside the interconnected pipe; C q K eq C L Let represent the isobaric heat capacity, thermal conductivity, and isochoric heat capacity of the liquid within the interconnecting pipes, respectively; u is the velocity vector of the liquid within the interconnecting pipes; Q H Q G These represent the cooling capacity of the cooling station on one side of the interconnected pipeline and the cooling capacity of the cooling station on the other side, respectively.

[0026] Optionally, the step of determining the adjustment scheme for the balancing valve on the interconnecting pipeline and / or the second cooling station based on the target outlet water temperature of the first cooling station and the actual outlet water temperature of the first cooling station through the group control system includes:

[0027] Determine the temperature difference between the outlet water temperature of the first cooling station and the outlet water temperature of the second cooling station in the dual-cooling-station interconnection model;

[0028] If the temperature difference is greater than 0, the target outlet water temperature of the first cooling station is fed back to the group control system to determine one or more of the following: the opening degree of the balancing valve set on the interconnecting pipeline, the number of circulating water pumps of the first cooling station and their operating frequency, and the number of circulating water pumps of the second cooling station and their operating frequency.

[0029] If the temperature difference is 0, then determine the pressure difference between the current outlet water pressure of the first cooling station and the current outlet water pressure of the second cooling station.

[0030] Based on the pressure difference, the number of circulating water pumps to be turned on and their operating frequency in the second cooling station are determined.

[0031] Optionally, the first cooling station includes multiple refrigeration units, a water distributor, a water collector, and multiple circulating water pumps; the multiple refrigeration units are connected to the same water distributor, which supplies water to the machine room; the water collector collects the return water from the machine room and inputs it to the multiple refrigeration units through the circulating water pumps, with each refrigeration unit corresponding to one circulating water pump; the second cooling station, in addition to the same configuration as the first cooling station, also includes a spare circulating water pump connected to any one of the multiple refrigeration units; the interconnecting pipeline connects the first cooling station and the second cooling station, and a balancing valve is installed on the interconnecting pipeline.

[0032] Secondly, this application also provides a device for thermal interaction control of interconnected dual cooling stations, comprising:

[0033] The interconnection parameter determination module, based on the dual-cooling-station interconnection model, uses the Brinkman equation and the heat conduction equation to determine the flow velocity of the liquid in the interconnection pipeline and the target outlet water temperature of the first cooling station.

[0034] The adjustment module, based on the target outlet water temperature of the first cooling station and the actual outlet water temperature of the first cooling station, determines the adjustment scheme of the balancing valve on the interconnected pipeline and / or the second cooling station through the group control system.

[0035] The dual-cooling-station interconnection model is based on the dual-cooling-station interconnection structure, which includes a first cooling station and a second cooling station connected by interconnection pipes, and a balancing valve is installed on the interconnection pipes.

[0036] Optionally, the determination of the liquid flow rate in the interconnected pipeline and the target outlet water temperature of the first cooling station based on the dual-cooling-station interconnection model, using the Brinkman equation and the heat conduction equation, includes:

[0037] The interconnected model based on two cooling stations, using the Brinkman equation and the heat conduction equation, determines the liquid flow velocity in the interconnected pipes and the target outlet water temperature of the first cooling station, including:

[0038] Set the boundary conditions and initial values ​​of relevant parameters for the Brinkman equation;

[0039] Based on the Brinkman equation, the flow velocity of the liquid in the interconnected pipes is determined;

[0040] Based on the heat conduction equation and the flow rate of the liquid in the interconnected pipes, the target outlet temperature of the liquid in the interconnected pipes is determined.

[0041] The temperature of the liquid in the interconnected pipes in the Brinkman equation is updated to the target outlet temperature of the liquid in the interconnected pipes. The pressure in the interconnected pipes is updated in a stepwise manner. Based on the Brinkman equation and the heat conduction equation, the flow rate of the liquid in the interconnected pipes and the target outlet temperature of the liquid in the interconnected pipes are determined iteratively.

[0042] Until the pressure inside the interconnected pipe reaches the boundary condition, the final determined target outlet water temperature of the liquid inside the interconnected pipe is taken as the target outlet water temperature of the first cooling station.

[0043] The boundary condition is that the pressure inside the interconnecting pipe reaches the current outlet water pressure of the first cooling station; the initial values ​​of the relevant parameters include the initial value of the pressure inside the interconnecting pipe and the initial value of the temperature of the liquid inside the interconnecting pipe.

[0044] Thirdly, this application also provides an electronic device, including a processor and a memory storing a computer program, wherein the processor executes the program to implement the thermal interaction control method for interconnection between the two cooling stations described in the first aspect.

[0045] Fourthly, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the thermal interaction control method for interconnection between two cooling stations as described in the first aspect.

[0046] The method and apparatus for heat interaction control of interconnected dual cooling stations provided in this application simulate the optimal control temperature and water flow rate by combining the Brinkman equation and the heat conduction equation, thereby achieving intelligent control of the dual cooling stations under interconnected conditions, improving the utilization rate of the cooling capacity of the cooling stations and enhancing the stability of the cooling station load environment. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is a flowchart illustrating the thermal interaction control method for interconnecting two cooling stations provided in an embodiment of this application.

[0049] Figure 2 This is a schematic diagram of the interconnection model of two cooling stations provided in the embodiments of this application;

[0050] Figure 3This is a schematic diagram illustrating the simulation and optimization process of the thermal interaction control method for interconnection between two cooling stations provided in the embodiments of this application;

[0051] Figure 4 This is a flowchart illustrating the implementation of the thermal interaction control method for interconnecting two cooling stations provided in this application embodiment;

[0052] Figure 5 This is a schematic diagram of the structure of the heat interaction control device for interconnecting two cooling stations provided in the embodiments of this application;

[0053] Figure 6 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] Figure 1 This is a flowchart illustrating the thermal interaction control method for interconnecting two cooling stations provided in an embodiment of this application, as shown below. Figure 1 As shown, the method includes:

[0056] Step 101: Based on the interconnection model of the two cooling stations, the Brinkman equation and the heat conduction equation are used to determine the flow rate of the liquid in the interconnection pipeline and the target outlet water temperature of the first cooling station.

[0057] Step 102: Based on the target outlet water temperature of the first cooling station and the actual outlet water temperature of the first cooling station, determine the adjustment scheme of the balancing valve on the interconnecting pipeline and / or the second cooling station through the group control system.

[0058] The dual-cooling-station interconnection model is based on the dual-cooling-station interconnection structure, which includes a first cooling station and a second cooling station connected by interconnection pipes, and a balancing valve is installed on the interconnection pipes.

[0059] Specifically, the key issue preventing the normal operation of dual-cooling station backup cooling source is the heat exchange problem. The refrigerant in the interconnecting pipes is a liquid, and considering cost and other factors, water is often used. Therefore, the solution can be summarized as driving water flow to achieve heat exchange. By collecting data from both sides of the dual-cooling station, analyzing heat conduction, and intelligently controlling the heat distribution on both sides, the dual-cooling station can achieve mutual backup of cooling sources and energy-saving operation.

[0060] Existing single-cooling-station refrigeration systems mainly consist of chillers, circulating water pumps, plate heat exchangers, cooling towers, cold storage tanks, water collectors, and water distributors. The water distributor introduces chilled water into the computer room through the associated water-cooled air conditioning terminals, exchanging heat with the computer room environment and removing heat from the room. This maintains a suitable temperature for servers and other loads, preventing them from shutting down due to overheating. The circulated chilled water is then piped back to the cooling station's water collector. In addition, the cooling station is equipped with a cold storage tank as a backup secondary cooling source. Generally, large data centers use independent cooling stations to provide uninterrupted cooling for the computer room.

[0061] To enhance the reliability of water-cooled air conditioning systems, large data centers, especially those serving financial clients, typically place higher demands on the cooling source. Interconnected operation of dual cooling stations enables a third backup cooling source. The advantages of this interconnected operation include not only improved utilization of the backup cooling source but also increased energy efficiency, resulting in significant energy savings.

[0062] The first cold source is multiple refrigeration units within a single cold storage station; the second cold source is a cold storage tank within the same cold storage station; and the third cold source backup refers to a dual-cold storage station mode, where two cold storage stations are interconnected via pipelines and serve as backups for each other. The first, second, and third cold sources mentioned above are mutually redundant.

[0063] For a single chiller station, factors affecting the chilled water outlet temperature include outdoor temperature, load, number of operating refrigeration units, water flow velocity, and pipeline pressure. For dual chiller stations, the pressure on both sides of the interconnecting pipeline is directly proportional to the number and frequency of circulating water pumps. The temperature on both sides of the interconnecting pipeline is related to the load and number of operating refrigeration units of each of the two chiller stations. Therefore, the temperature and pressure on both sides of the interconnecting pipeline are used as control variables. By adjusting the refrigeration units and operating parameters, the most reasonable chilled water outlet temperature control can be achieved, realizing energy-saving operation of the interconnected dual chiller stations.

[0064] The dual-cooling-station interconnection model is based on a dual-cooling-station interconnection structure, which includes a first cooling station and a second cooling station connected by interconnecting pipes, and balancing valves are installed on the interconnecting pipes. The water distributors of the first and second cooling stations, as well as the water collectors of the first and second cooling stations, are all connected by interconnecting pipes, and each interconnecting pipe is equipped with a balancing valve.

[0065] To achieve interconnection between the two cooling plants, an interconnecting pipeline is installed between them, and a balancing valve is installed on the pipeline. The opening of the balancing valve is controlled by a group control system to achieve interconnection between the two cooling plants. Controlling the interconnection requires adjusting the corresponding parameters in both cooling plants.

[0066] The first cooling station includes multiple refrigeration units, a water distributor, a water collector, and multiple circulating water pumps. The multiple refrigeration units are connected to the same water distributor, which supplies water to the machine room. The water collector collects the return water from the machine room and inputs it to the multiple refrigeration units via the circulating water pumps. Each refrigeration unit corresponds to one circulating water pump. The second cooling station, in addition to the same configuration as the first cooling station, includes a spare circulating water pump connected to any one of the multiple refrigeration units. The first and second cooling stations are connected by an interconnecting pipe equipped with a balancing valve.

[0067] For a single-sided chilled plant, the distributor provides chilled liquid, typically chilled water, to dissipate heat from all the loads (machines) operating in the machine room. After heat dissipation, the chilled water flows through a circulation loop into the collector of that side of the chilled plant, and then through a circulating water pump into the corresponding refrigeration unit, thus achieving a single-sided chilled water circulation process. In the dual-chilled plant interconnection model provided in this application, to achieve interconnection between the first and second chilled plants, interconnecting pipes connect the distributors of one chilled plant to the distributors of the other chilled plant, and also connect the collectors of one chilled plant to the collectors of the other chilled plant. A balancing valve is installed on the interconnecting pipes to adjust the degree of interconnection between the two chilled plants. Different opening degrees of the balancing valve result in different water flow rates. Furthermore, in order to promote the flow of liquid in the pipeline, a spare circulating water pump was added to the second cooling station side, which can increase the pressure in the cooling station on one side, thereby increasing the flow rate of liquid in the pipeline and promoting the interconnection between the two cooling stations.

[0068] Optionally, the above-mentioned dual-cooling-station interconnection model also includes two sets of cold storage systems. The water distributor of the first cooling station inputs into the first cold storage system, and the first cold storage system outputs to the water collector of the first cooling station. The water distributor of the second cooling station inputs into the second cold storage system, and the second cold storage system outputs to the water collector of the second cooling station.

[0069] When achieving interconnection between two cold stations, a cold storage system can also be configured at the cold station to ensure continued cooling supply to the computer room in the event of a refrigeration unit failure. Furthermore, based on the dual-cold station interconnection model provided in this application, the primary cold storage tank will be activated if cooling is interrupted at one cold station. If both the refrigeration unit and cold storage system at the other cold station fail, the cooling source from the primary cold storage tank can be transferred to the completely failed cold station via interconnecting pipes, thus achieving interconnection of the cooling sources.

[0070] Figure 2 This is a schematic diagram of the interconnection model of two cooling stations provided in the embodiments of this application, as shown below. Figure 2As shown, taking three refrigeration units as an example, the number and frequency of operation of the circulating water pump LD will affect the pressure in the interconnecting pipeline. The distributor provides chilled water to the machine room, and the collector collects the chilled water after circulation in the machine room; the second chiller station is equipped with a backup circulating water pump to increase the pressure in the interconnecting pipeline when the machine room is fully loaded. The distributor of the first chiller station is connected to the distributor of the second chiller station and is equipped with a balancing valve, which can achieve 0-100% adjustment; the collector of the first chiller station is connected to the collector of the second chiller station and is equipped with a balancing valve, which can achieve 0-100% adjustment.

[0071] The corresponding control parameters mainly include:

[0072] Parameters for the interconnection between the two cooling stations: temperature difference on both sides and flow velocity in the pipeline;

[0073] Parameters of a single refrigeration station:

[0074] (1) Temperature T01 and pressure P01 of the first cooling station distributor; temperature T11 and pressure P11 of the second cooling station distributor;

[0075] (2) Temperature T02 and pressure P02 of the water collector of the first chiller station, and temperature T12 and pressure P12 of the water collector of the second chiller station;

[0076] The temperature difference between the water distributor and the water collector in the same chiller plant represents the load of the machine room, and the pressure difference between the water distributor and the water collector in the same chiller plant represents the water cooling circulation volume.

[0077] (3) The opening degree k of the balancing valve; the group control system can control the opening degree of the balancing valve set on the interconnected pipeline according to actual needs.

[0078] (4) The number of circulating water pumps n and the frequency feedback f;

[0079] After the interconnection model of the two cooling stations is established, the change in temperature causes the liquid density in the interconnected pipes to change, which in turn causes the liquid to flow in the pipes. The refrigeration parameters of the interconnection model of the two cooling stations are optimized and simulated by analyzing the parameters on both sides of the interconnected pipes.

[0080] Based on data collected from the first and second cooling stations, the Brinkman equation is used to simulate water flow and accurately simulate the convection and diffusion caused by the liquid flow within the interconnecting pipes. The heat conduction equation is applied to simulate heat conduction and the transfer of heat accompanying liquid flow. By describing the combined effect of water velocity and heat convection and conduction within the interconnecting pipes using the Brinkman and heat conduction equations, the heat transfer process of the water flow inside the interconnecting pipes can be predicted, and the liquid velocity within the interconnecting pipes can be determined. The target outlet water temperature of the first cooling station is the temperature of the liquid in the distributor of the first cooling station; similarly, the target outlet water temperature of the second cooling station is the temperature of the liquid in the distributor of the second cooling station.

[0081] The flow rate of the liquid in the interconnecting pipes and the temperature difference between the two sides for heat exchange are then determined. These parameters are then fed back to the group control system. Based on these parameters, the group control system adjusts the opening of the balancing valve on the interconnecting pipes, or adjusts one or more of the following: the temperature of the liquid in the distributor of the first cooling station, the flow rate of the liquid in the distributor, the number of circulating water pumps turned on, and the operating frequency; or adjusts one or more of the following: the temperature of the liquid in the distributor of the second cooling station, the flow rate of the liquid in the distributor, the number of circulating water pumps turned on, and the operating frequency. Of course, there may be situations where any combination of the above-mentioned balancing valves, the relevant parameters of the first cooling station, and the relevant parameters of the second cooling station needs to be adjusted.

[0082] The heat interaction control method for interconnecting two cooling stations provided in this application simulates the optimal control temperature and water flow rate by combining the Brinkman equation and the heat conduction equation, thereby achieving intelligent control of the two cooling stations under interconnection conditions, improving the utilization rate of the cooling capacity of the cooling stations, and enhancing the stability of the cooling station load environment.

[0083] Optionally, the determination of the liquid flow rate in the interconnected pipeline and the target outlet water temperature of the first cooling station based on the dual-cooling-station interconnection model, using the Brinkman equation and the heat conduction equation, includes:

[0084] Set the boundary conditions and initial values ​​of relevant parameters for the Brinkman equation;

[0085] Based on the Brinkman equation, the flow rate of the liquid in the interconnected pipes is determined;

[0086] Based on the heat conduction equation and the flow rate of the liquid in the interconnected pipes, the target outlet temperature of the liquid in the interconnected pipes is determined.

[0087] The temperature of the liquid in the interconnected pipe in the Brinkman equation is updated to the target outlet temperature of the liquid in the interconnected pipe. The pressure in the interconnected pipe is updated in a stepwise manner. Based on the Brinkman equation and the heat conduction equation, the updated flow rate of the liquid in the interconnected pipe and the target outlet temperature of the liquid in the interconnected pipe are determined iteratively.

[0088] Until the pressure inside the interconnected pipe reaches the boundary condition, the final determined target outlet water temperature of the liquid inside the interconnected pipe is taken as the target outlet water temperature of the first cooling station.

[0089] The boundary condition is that the pressure inside the interconnecting pipe reaches the current outlet water pressure of the first cooling station; the initial values ​​of the relevant parameters include the initial value of the pressure inside the interconnecting pipe and the initial value of the temperature of the liquid inside the interconnecting pipe.

[0090] Specifically, an interconnection model of two cooling stations was established. When performing simulation analysis using the Brinkman equation and the heat conduction equation, in order to achieve rapid convergence, boundary conditions and initial values ​​were first set. That is, the relative value of the water flow velocity on both sides of the interconnection pipe was set to 0, the initial value of the water flow pressure on the first cooling station side was set to 0, that is, the initial value of the pressure inside the interconnection pipe was set to 0, and the temperature of the liquid inside the interconnection pipe was the current outlet water temperature of the first cooling station, that is, the temperature T01 of the liquid output from the distributor of the first cooling station to the interface of the machine room at the current moment. Then, the pressure inside the interconnection pipe was gradually increased in a stepwise manner until it reached the current water flow pressure value on the first cooling station side. This condition is the boundary condition of the Brinkman equation.

[0091] Figure 3 This is a schematic diagram illustrating the simulation and optimization process of the thermal interaction control method for interconnected dual cooling stations provided in this application embodiment. It utilizes the coupling of the heat conduction equation and the Brinkman equation to simulate the relationship between heat conduction of the liquid within the pipe and temperature and pressure. The specific process is as follows... Figure 3 As shown, the main steps are:

[0092] (1) Determine the corresponding liquid velocity in the interconnecting pipe based on the initial value of the Brinkman equation and the liquid parameters of the liquid in the interconnecting pipe.

[0093] (2) Based on the initial values ​​of the temperature and pressure of the liquid in the interconnected pipes, and in conjunction with the relevant laws of thermodynamics, determine the isobaric heat capacity, thermal conductivity, isochoric heat capacity, and density of the liquid in the heat conduction equation. Of course, the liquid here must be a specific type of liquid so that its corresponding isobaric heat capacity, thermal conductivity, isochoric heat capacity, and density can be determined based on the temperature and pressure values ​​and in conjunction with the relevant laws of thermodynamics. Then, substitute these values ​​into the heat conduction equation and, in conjunction with the liquid velocity in the interconnected pipes obtained in step (1), determine the target outlet water temperature of the liquid in the interconnected pipes.

[0094] (3) Update the temperature of the liquid in the interconnected pipe in the Brinkman equation to the target outlet temperature of the liquid in the interconnected pipe determined in step (2). Combined with the pressure in the interconnected pipe updated in the step manner, redetermine the flow velocity of the liquid in the interconnected pipe, which is equivalent to obtaining the updated value of the flow velocity of the liquid in the interconnected pipe.

[0095] (4) Based on the re-determined flow rate of the liquid in the interconnecting pipe, as well as the corresponding temperature and pressure, the liquid isobaric heat capacity, thermal conductivity, isovolumetric heat capacity, and density in the heat conduction equation are determined again. The flow rate of the liquid in the interconnecting pipe, as well as the re-determined isobaric heat capacity, thermal conductivity, and isovolumetric heat capacity in step (3), are substituted into the heat conduction equation to redetermine the target outlet water temperature of the liquid in the interconnecting pipe. This is equivalent to updating the target outlet water temperature of the liquid in the interconnecting pipe until the pressure in the interconnecting pipe in the Brinkman equation reaches the outlet water pressure of the first cooling station at the current moment.

[0096] The final flow rate of the liquid in the interconnected pipes and the target outlet temperature of the liquid in the interconnected pipes are obtained. The target outlet temperature of the liquid in the interconnected pipes is taken as the target outlet temperature of the first cooling station. This may be different from the current outlet temperature of the first cooling station. Therefore, it needs to be fed back to the group control system. The group control system adjusts the opening of the balancing valve between the first and second cooling stations, or adjusts the number and operating frequency of the circulating water pumps in the second cooling station, or the number and operating frequency of the circulating water pumps in the first cooling station, or any combination of the above, based on this target value.

[0097] Optionally, the formula corresponding to the Brinkman equation is:

[0098]

[0099] in, u is the velocity vector of the liquid within the interconnected pipes, p is the pressure within the interconnected pipes, η is the dynamic viscosity of the liquid within the interconnected pipes, I is the momentum, T is the temperature within the interconnected pipes, Q is a ensemble source term, ρ is the density of the liquid within the interconnected pipes, and g refers to the acceleration due to gravity. for The transpose of .

[0100] Specifically, the cooling liquid in this application is water. For ease of calculation, internal frictional stress is ignored, and I = 0 is set. Then, the Brinkman equation can be simplified to:

[0101]

[0102] in, This indicates calculating the divergence of the corresponding variables. Represents the gradient operator. for The transpose of , where ρ is the density of the liquid inside the interconnecting pipe, g is the acceleration due to gravity, T is the temperature inside the interconnecting pipe, and p is the pressure inside the interconnecting pipe. for The transpose of .

[0103] Optionally, the formula corresponding to the heat conduction equation is:

[0104]

[0105] in, Represents the Laplace operator, where T is the temperature inside the interconnected pipe; C q K eq C L Let represent the isobaric heat capacity, thermal conductivity, and isochoric heat capacity of the liquid within the interconnecting pipes, respectively; u is the velocity vector of the liquid within the interconnecting pipes; Q H Q G These represent the cooling capacity of the cooling station on one side of the interconnected pipeline and the cooling capacity of the cooling station on the other side, respectively.

[0106] Specifically, in the heat conduction equation, the boundary of the pipe and the interior of the pipe are assumed to be thermally insulated, and the thermal interaction between the pipe and external conditions is not considered. The initial temperature on one side is set as the current outlet water temperature of the first cooling station, that is, the temperature of the water supplied by the distributor of the first cooling station. This temperature difference with the other side of the interconnecting pipe, that is, the second cooling station, creates a temperature difference with the initial temperature, thus forming heat convection.

[0107] Optionally, the step of determining the adjustment scheme for the balancing valve on the interconnecting pipeline and / or the second cooling station based on the target outlet water temperature of the first cooling station and the actual outlet water temperature of the first cooling station through the group control system includes:

[0108] Determine the temperature difference between the outlet water temperature of the first cooling station and the outlet water temperature of the second cooling station in the dual-cooling-station interconnection model;

[0109] If the temperature difference is greater than 0, the target outlet water temperature of the first cooling station is fed back to the group control system to determine one or more of the following: the opening degree of the balancing valve set on the interconnecting pipeline, the number of circulating water pumps of the first cooling station and their operating frequency, and the number of circulating water pumps of the second cooling station and their operating frequency.

[0110] If the temperature difference is 0, then determine the pressure difference between the current outlet water pressure of the first cooling station and the current outlet water pressure of the second cooling station.

[0111] Based on the pressure difference, the number of circulating water pumps to be turned on and their operating frequency in the second cooling station are determined.

[0112] Specifically, by simulating the flow of liquid within the interconnected pipelines, the optimal control temperature and pressure values ​​for achieving heat interaction between the two cooling stations can be obtained. Combined with the actual operating conditions of the two cooling stations, adjustments and controls can be made under different operating modes. Specific cooling station operating data can be collected from the underlying sensors of the on-site group control system, simulated and optimized based on the interconnection model of the two cooling stations, and the obtained parameters can be fed back to the group control system of the cooling stations for adjustment.

[0113] Figure 4 This is a flowchart illustrating the implementation of the thermal interaction control method for interconnecting two cooling stations provided in this application. Figure 4 As shown, in actual operation, the load conditions on both sides of the dual cooling station need to be considered. The specific control and adjustment steps are as follows:

[0114] The two cooling plants can operate independently. Before activating the interconnection pipeline, the interconnection model of the two cooling plants is simulated and optimized, and the resulting parameters are fed back to the group control system for adjustment.

[0115] 1. Determine whether there is a temperature difference ΔT between the outlet water temperature of the first cooling station and the outlet water temperature of the second cooling station, where the temperature difference represents the difference between the higher outlet water temperature and the lower outlet water temperature of any two cooling stations.

[0116] 2. If the temperature difference ΔT > 0, then further determine the load (load capacity) of the first and second cooling stations:

[0117] If one of the chiller stations is unloaded, the parameter values ​​obtained from the simulation optimization are fed back to the group control system. The group control system will then activate the refrigeration units of the chiller station on the loaded side and the standby water pump of the chiller station on the unloaded side to accelerate the liquid flow between the two chiller stations. Simultaneously, it will check the operating temperature of the unloaded chiller station and adjust the flow rate accordingly. For example, if the first chiller station is loaded and the second chiller station is unloaded, and at a given parameter temperature, ΔT > 0, the group control system will be fed back to activate one set of refrigeration units in the first chiller station and the LD24 circulating water pump in the second chiller station. Simultaneously, it will check the operating temperature T11 of the second chiller station and adjust the flow rate accordingly. The given parameter temperature is the target outlet water temperature of the first chiller station; that is, the outlet water temperature of the first chiller station needs to be adjusted to this temperature to achieve heat exchange between the two sides of the interconnected pipeline. The given parameter temperature is the operating temperature that the first chiller station needs to be adjusted to.

[0118] If both cooling stations are under load but the loads are uneven, the interactive temperature difference obtained from the simulation optimization is fed back to the group control system to control the number of refrigeration units started, the number of circulating water pumps, and their operating frequency on both sides, so that the temperature difference between the outlet water of the first or second cooling station reaches the interactive temperature difference.

[0119] If both cooling stations are under load and the loads are similar, the interactive temperature difference obtained from simulation optimization is fed back to the group control system to adjust the opening of the balancing valves in the interconnected pipelines to achieve thermal interaction.

[0120] The opening of the balancing valve is usually adjusted by starting with an initial opening of 20% and then adjusting in 10% increments, while the temperature of the interconnected pipes is recorded every unit of time until the required interaction temperature is reached.

[0121] 3. If the temperature difference ΔT = 0, then to further determine the pressure difference ΔP between the first and second cooling stations, it is also necessary to determine the load (load capacity) of both cooling stations, i.e., the load (load capacity) of the first and second cooling stations:

[0122] If both cooling stations are under load but the loads are uneven, the interactive temperature difference obtained from the simulation optimization is fed back to the group control system to check the operating pressure of both cooling stations. If the pressure is consistent, the balancing valve of the interconnecting pipeline and the frequency of the circulating water pump on the low-load side are adjusted to drive water flow and perform heat exchange. It is then determined whether the adjusted temperature value reaches the temperature difference optimized in the simulation. If not, the simulation optimization process is repeated based on the current state. If it does, the existing operating state is maintained.

[0123] If there are two cooling stations with similar loads, the interactive temperature difference obtained from the simulation optimization is fed back to the group control system to check the operating pressure of the two cooling stations. If there is a pressure difference, the number and operating frequency of the circulating water pumps in the second cooling station are adjusted to drive the water flow, realize heat exchange, and ensure that the outlet water temperature of the two cooling stations meets the load requirements.

[0124] If there are two refrigeration stations under load, and the load is close to full capacity, and all refrigeration units are put into use according to the design, the feedback to the group control system may not be able to be adjusted, and it may only be able to maintain the existing state of operation.

[0125] The heat interaction control method for interconnecting two cooling stations provided in this application simulates the optimal control temperature and water flow rate by combining the Brinkman equation and the heat conduction equation, thereby achieving intelligent control of the two cooling stations under interconnection conditions, improving the utilization rate of the cooling capacity of the cooling stations, and enhancing the stability of the cooling station load environment.

[0126] Furthermore, the thermal interaction control method for interconnected dual cooling stations provided in this application, applied to a large data center with a dual-cooling station interconnection model, involves on-site data collection and on-site testing using parameters simulated by combining the Brinkman equation and the heat conduction equation. The temperature and pressure values ​​within the channels of the first and second cooling stations are tested. Theoretically, thermal interaction can be achieved when the temperature difference exceeds a preset value of 1℃. However, in actual control, the interaction results deviate from the analysis. When differential pressure control is implemented, under different peripheral conditions and operating modes, ideal thermal interaction can be achieved when the differential pressure control exceeds 0.6 BAR, consistent with the model's predictive analysis results. Simultaneously, it ensures the normal supply of cooling capacity to the cooling station load, guaranteeing energy-efficient operation of the data center.

[0127] Figure 5 This is a schematic diagram of the structure of the heat interaction control device for interconnecting two cooling stations provided in the embodiments of this application, as shown below. Figure 5As shown, the device for thermal interaction control of the interconnected dual cooling stations includes:

[0128] The interconnection parameter determination module 501, based on the dual-cooling-station interconnection model, uses the Brinkman equation and the heat conduction equation to determine the flow velocity of the liquid in the interconnection pipeline and the target outlet water temperature of the first cooling station.

[0129] The adjustment module 502, based on the target outlet water temperature of the first cooling station and the actual outlet water temperature of the first cooling station, determines the adjustment scheme of the balancing valve on the interconnected pipeline and / or the second cooling station through the group control system.

[0130] The dual-cooling-station interconnection model is based on the dual-cooling-station interconnection structure, which includes a first cooling station and a second cooling station. The first cooling station and the second cooling station are connected by interconnection pipes and equipped with balancing valves.

[0131] In a further description of the above-mentioned device, the interconnection parameter determination module 501, based on the dual-cooling-station interconnection model, uses the Brinkman equation and the heat conduction equation to determine the flow velocity of the liquid in the interconnection pipeline and the target outlet water temperature of the first cooling station, including:

[0132] The interconnected model based on two cooling stations, using the Brinkman equation and the heat conduction equation, determines the liquid flow velocity in the interconnected pipes and the target outlet water temperature of the first cooling station, including:

[0133] Set the boundary conditions and initial values ​​of relevant parameters for the Brinkman equation;

[0134] Based on the Brinkman equation, the flow rate of the liquid in the interconnected pipes is determined;

[0135] Based on the heat conduction equation and the flow rate of the liquid in the interconnected pipes, the target outlet temperature of the liquid in the interconnected pipes is determined.

[0136] The temperature of the liquid in the interconnected pipe in the Brinkman equation is updated to the target outlet temperature of the liquid in the interconnected pipe. The pressure in the interconnected pipe is updated in a stepwise manner. Based on the Brinkman equation and the heat conduction equation, the updated flow rate of the liquid in the interconnected pipe and the target outlet temperature of the liquid in the interconnected pipe are determined iteratively.

[0137] Until the pressure inside the interconnected pipe reaches the boundary condition, the final determined target outlet water temperature of the liquid inside the interconnected pipe is taken as the target outlet water temperature of the first cooling station.

[0138] The boundary condition is that the pressure inside the interconnecting pipe reaches the current outlet water pressure of the first cooling station; the initial values ​​of the relevant parameters include the initial value of the pressure inside the interconnecting pipe and the initial value of the temperature of the liquid inside the interconnecting pipe.

[0139] Optionally, the formula corresponding to the Brinkman equation is:

[0140]

[0141] in, u is the velocity vector of the liquid within the interconnected pipes, p is the pressure within the interconnected pipes, η is the dynamic viscosity of the liquid within the interconnected pipes, I is the momentum, T is the temperature within the interconnected pipes, Q is a ensemble source term, ρ is the density of the liquid within the interconnected pipes, and g refers to the acceleration due to gravity. for The transpose of .

[0142] Optionally, the formula corresponding to the heat conduction equation is:

[0143]

[0144] in, Represents the Laplace operator, where T is the temperature inside the interconnected pipe; C q K eq C L Let represent the isobaric heat capacity, thermal conductivity, and isochoric heat capacity of the liquid within the interconnecting pipes, respectively; u is the velocity vector of the liquid within the interconnecting pipes; Q H Q G These represent the cooling capacity of the cooling station on one side of the interconnected pipeline and the cooling capacity of the cooling station on the other side, respectively.

[0145] In a further description of the above device, the adjustment module 502, in the process of determining the adjustment scheme of the balancing valve on the interconnecting pipeline and / or the second cooling station based on the target outlet water temperature of the first cooling station and the actual outlet water temperature of the first cooling station through the group control system, is specifically used for:

[0146] Determine the temperature difference between the outlet water temperature of the first cooling station and the outlet water temperature of the second cooling station in the dual-cooling-station interconnection model;

[0147] If the temperature difference is greater than 0, the target outlet water temperature of the first cooling station is fed back to the group control system to determine one or more of the following: the opening degree of the balancing valve set on the interconnecting pipeline, the number of circulating water pumps of the first cooling station and their operating frequency, and the number of circulating water pumps of the second cooling station and their operating frequency.

[0148] If the temperature difference is 0, then the pressure difference between the current outlet water pressure of the first cooling station and the current outlet water pressure of the second cooling station is determined.

[0149] Based on the pressure difference, the number of circulating water pumps to be turned on and their operating frequency in the second cooling station are determined.

[0150] Optionally, the first cooling station includes multiple refrigeration units, a water distributor, a water collector, and multiple circulating water pumps; the multiple refrigeration units are connected to the same water distributor, which supplies water to the machine room; the water collector collects the return water from the machine room and inputs it to the multiple refrigeration units through the circulating water pumps, with each refrigeration unit corresponding to one circulating water pump; the second cooling station, in addition to the same configuration as the first cooling station, also includes a spare circulating water pump connected to any one of the multiple refrigeration units; the interconnecting pipeline connects the first cooling station and the second cooling station, and a balancing valve is installed on the interconnecting pipeline.

[0151] Optionally, the dual-cooling-station interconnection model further includes two sets of cold storage systems. The water distributor of the first cooling station inputs into the first cold storage system, and the first cold storage system outputs to the water collector of the first cooling station. The water distributor of the second cooling station inputs into the second cold storage system, and the second cold storage system outputs to the water collector of the second cooling station.

[0152] It should be noted that the thermal interaction control device for interconnection between two cooling stations provided in this application embodiment can realize all the methods implemented in the above-mentioned method embodiment for thermal interaction control between two cooling stations and achieve the same technical effect. Here, the parts and beneficial effects that are the same as or corresponding to the method embodiment will not be described in detail.

[0153] Figure 6 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application, such as... Figure 6 As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630, and a communication bus 640, wherein the processor 610, the communication interface 620, and the memory 630 communicate with each other through the communication bus 640. The processor 610 can call logic instructions in the memory 630 to execute a method for thermal interaction control of the interconnection between the two cooling stations, such as including:

[0154] Based on the interconnection model of the two cooling stations, the Brinkman equation and the heat conduction equation are used to determine the flow velocity of the liquid in the interconnection pipeline and the target outlet water temperature of the first cooling station.

[0155] Based on the target outlet water temperature of the first cooling station and the actual outlet water temperature of the first cooling station, the adjustment scheme of the balancing valve on the interconnecting pipeline and / or the second cooling station is determined through the group control system.

[0156] The dual-cooling-station interconnection model is based on the dual-cooling-station interconnection structure, which includes a first cooling station and a second cooling station connected by interconnection pipes, and a balancing valve is installed on the interconnection pipes.

[0157] Furthermore, the logical instructions in the aforementioned memory 630 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0158] It should be noted that the electronic device provided in this application embodiment can realize all the steps of the method embodiment of the above-mentioned heat interaction control method for interconnection between two cooling stations, and can achieve the same technical effect. Here, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail.

[0159] On the other hand, this application also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer is able to execute the thermal interaction control method for interconnection between the two cooling stations provided by the above methods.

[0160] Specifically, the computer program products provided in this application embodiment can implement all the methods implemented in the above method embodiments and can achieve the same technical effects. Here, the parts that are the same as those in the method embodiments and the beneficial effects will not be described in detail.

[0161] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0162] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A method for thermal interaction control of interconnected dual cooling stations, characterized in that, include: Based on the interconnection model of the two cooling stations, the Brinkman equation and the heat conduction equation are used to determine the flow velocity of the liquid in the interconnection pipeline and the target outlet water temperature of the first cooling station. Based on the target outlet water temperature of the first cooling station and the actual outlet water temperature of the first cooling station, the adjustment scheme of the balancing valve on the interconnected pipeline and / or the second cooling station is determined through the group control system. The dual-cooling-station interconnection model is based on the dual-cooling-station interconnection structure, which includes a first cooling station and a second cooling station connected by the interconnection pipeline, and a balancing valve is installed on the interconnection pipeline. The interconnected model based on two cooling stations, using the Brinkman equation and the heat conduction equation, determines the liquid flow velocity in the interconnected pipes and the target outlet water temperature of the first cooling station, including: Set the boundary conditions and initial values ​​of relevant parameters for the Brinkman equation; Based on the Brinkman equation, the flow rate of the liquid in the interconnected pipes is determined; Based on the heat conduction equation and the flow rate of the liquid in the interconnected pipes, the target outlet temperature of the liquid in the interconnected pipes is determined. The temperature of the liquid in the interconnected pipe in the Brinkman equation is updated to the target outlet temperature of the liquid in the interconnected pipe. The pressure in the interconnected pipe is updated in a stepwise manner. Based on the Brinkman equation and the heat conduction equation, the updated flow rate of the liquid in the interconnected pipe and the target outlet temperature of the liquid in the interconnected pipe are determined iteratively. Until the pressure inside the interconnected pipe reaches the boundary condition, the final determined target outlet water temperature of the liquid inside the interconnected pipe is taken as the target outlet water temperature of the first cooling station. The boundary condition is that the pressure inside the interconnecting pipe reaches the current outlet water pressure of the first cooling station; the initial values ​​of the relevant parameters include the initial value of the pressure inside the interconnecting pipe and the initial value of the temperature of the liquid inside the interconnecting pipe. The formula corresponding to the Brinkman equation is: ； in, , Let be the velocity vector of the liquid within the interconnected pipes. The pressure inside the interconnecting pipes. The dynamic viscosity of the liquid within the interconnected pipes. Momentum, T is the temperature inside the interconnected pipe, and Q is a ensemble source term. The density of the liquid inside the interconnected pipes is given by g, where g is the acceleration due to gravity. for transpose; The formula corresponding to the heat conduction equation is: ； in, Represents the Laplace operator, where T is the temperature inside the interconnected pipe; , , These are the isobaric heat capacity, thermal conductivity, and isovolute heat capacity of the liquid within the interconnected pipes, respectively. This represents the velocity vector of the liquid within the interconnected pipes. , These represent the cooling capacity of the cooling station on one side of the interconnected pipeline and the cooling capacity of the cooling station on the other side, respectively.

2. The method for thermal interaction control of interconnected dual cooling stations according to claim 1, characterized in that, Based on the target outlet water temperature of the first cooling station and its actual outlet water temperature, the group control system determines the adjustment scheme for the balancing valves on the interconnected pipelines and / or the second cooling station, including: Determine the temperature difference between the outlet water temperature of the first cooling station and the outlet water temperature of the second cooling station in the dual-cooling-station interconnection model; If the temperature difference is greater than 0, the target outlet water temperature of the first cooling station is fed back to the group control system to determine one or more of the following: the opening degree of the balancing valve set on the interconnecting pipeline, the number of circulating water pumps of the first cooling station and their operating frequency, and the number of circulating water pumps of the second cooling station and their operating frequency. If the temperature difference is 0, then the pressure difference between the current outlet water pressure of the first cooling station and the current outlet water pressure of the second cooling station is determined. Based on the pressure difference, the number of circulating water pumps to be turned on and their operating frequency in the second cooling station are determined.

3. The method for thermal interaction control of interconnected dual cooling stations according to claim 1, characterized in that, The first cooling station includes multiple refrigeration units, a water distributor, a water collector, and multiple circulating water pumps. The multiple refrigeration units are connected to the same water distributor, which supplies water to the machine room. The water collector collects the return water from the machine room and inputs it to the multiple refrigeration units through the circulating water pumps. Each refrigeration unit corresponds to one circulating water pump. The second cooling station, in addition to having the same configuration as the first cooling station, also includes a spare circulating water pump connected to any one of the multiple refrigeration units.

4. A device for thermal interaction control of interconnected dual cooling stations, characterized in that, The method for heat interaction control based on the interconnection of two cooling stations as described in any one of claims 1 to 3, the apparatus comprising: The interconnection parameter determination module, based on the dual-cooling-station interconnection model, uses the Brinkman equation and the heat conduction equation to determine the flow velocity of the liquid in the interconnection pipeline and the target outlet water temperature of the first cooling station. The adjustment module, based on the target outlet water temperature of the first cooling station and the actual outlet water temperature of the first cooling station, determines the adjustment scheme of the balancing valve on the interconnected pipeline and / or the second cooling station through the group control system. The dual-cooling-station interconnection model is based on the dual-cooling-station interconnection structure, which includes a first cooling station and a second cooling station connected by the interconnection pipeline, and a balancing valve is installed on the interconnection pipeline.

5. The device for heat interaction control of interconnected dual cooling stations according to claim 4, characterized in that, The first cooling station includes multiple refrigeration units, a water distributor, a water collector, and multiple circulating water pumps. The multiple refrigeration units are connected to the same water distributor, which supplies water to the machine room. The water collector collects the return water from the machine room and inputs it to the multiple refrigeration units through the circulating water pumps. Each refrigeration unit corresponds to one circulating water pump. The second cooling station, in addition to having the same configuration as the first cooling station, also includes a spare circulating water pump connected to any one of the multiple refrigeration units.

6. An electronic device comprising a processor and a memory storing a computer program, characterized in that, When the processor executes the computer program, it implements the thermal interaction control method for interconnection between two cooling stations as described in any one of claims 1 to 3.

7. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the thermal interaction control method for interconnection between the two cooling stations as described in any one of claims 1 to 3.

Images