Flow regulating method, device and air conditioning system

Abstract

The embodiment of the application provides a flow regulation method and device and an air conditioning system. The water supply flow of each water supply branch is dynamically regulated based on the return water temperature of the water collector, so as to realize dynamic thermal balance of the air conditioning system. According to the scheme, modeling and complex relational expression construction are not needed, and dynamic thermal balance regulation can be realized only by collecting part of the operation parameters of the system, so that the scheme has good engineering implementation, the regulation method is fully automatic control, manual regulation is not needed, the reliability is high, misregulation does not occur, and the comfort of the area where the air conditioning system is used for temperature regulation can be ensured.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, specifically to a flow regulation method, device, and air conditioning system. Background Technology

[0002] With social development and the continuous improvement of people's living standards, air conditioners have gradually become one of the essential electrical appliances in daily life, and people have also put forward higher requirements for the temperature regulation capabilities of air conditioners.

[0003] In related technologies, the manifold and distributor are important components of the air conditioning system, which are responsible for supplying cooling or heating to different air-conditioned areas. The cooling water in the air conditioning system flows from the various branches of the distributor to each air-conditioned area, thereby exchanging heat based on the cooling water, regulating the stability of each air-conditioned area, and then returning the return water obtained from the heat exchange of each air-conditioned area to the manifold, thus completing the circulation of cooling water in the air conditioning system.

[0004] However, hydraulic imbalance can easily occur between the branches of the manifold and distributor, resulting in an imbalance in the flow of cooling water into each air-conditioned area. This severely affects the normal heat exchange in some air-conditioned areas and makes it difficult to ensure the comfort level of these areas. Summary of the Invention

[0005] In view of this, this application aims to provide a flow regulation method, device and air conditioning system to solve the technical problem of hydraulic imbalance that easily occurs in the air conditioning system in the prior art, and to ensure the comfort of the air-conditioned area.

[0006] To achieve the above objectives, the technical solution of this application is as follows:

[0007] In a first aspect, this application provides a flow regulation method applied to an air conditioning system. The air conditioning system includes a water distributor, a water collector, and a heat exchange device. The water distributor is used to output cooling water to the heat exchange device through a water supply branch. The heat exchange device is used to exchange heat based on the cooling water to obtain return water. The water collector is used to recover the return water through a return water branch.

[0008] The flow regulation method includes: obtaining the return water temperature in the return water branch; determining the target return water temperature corresponding to the return water branch based on the return water temperature, wherein the target return water temperature is the average value of the return water branch; and adjusting the water supply flow rate of the water supply branch based on the target return water temperature.

[0009] In some embodiments, in response to the target return water temperature being a weighted average of the return water temperatures of the return water branches, determining the target return water temperature corresponding to the return water branch based on the return water temperature includes: obtaining the water supply flow rate of the water supply branch; and determining the target return water temperature corresponding to the return water branch based on the return water temperature and the water supply flow rate.

[0010] In some embodiments, adjusting the water supply flow rate of the water supply branch according to the target return water temperature includes: for each water supply branch, determining the heat load corresponding to the water supply branch according to the water supply temperature, water supply flow rate and return water temperature of the water supply branch; determining the first water supply flow rate of the water supply branch according to the heat load, the target return water temperature and the water supply temperature; and adjusting the water supply flow rate of the water supply branch to the first water supply flow rate.

[0011] In some embodiments, adjusting the water supply flow rate corresponding to a water supply branch to a first water supply flow rate includes: for each water supply branch, determining the hydraulic misalignment of the water supply branch based on the heat load corresponding to the water supply branch and the target water supply flow rate; determining a first target branch among the water supply branches based on the hydraulic misalignment of each water supply branch, wherein the first target branch is the branch with the smallest hydraulic misalignment among the water supply branches, or the first target branch is the branch among the water supply branches whose hydraulic misalignment is less than or equal to a preset value; adjusting the water supply flow rate of the first target branch to a second water supply flow rate; and adjusting the water supply flow rate of the remaining water supply branches other than the first target branch to the first water supply flow rate.

[0012] In some embodiments, in response to the target return water temperature being the arithmetic mean of the return water branches, adjusting the water supply flow rate of the supply branches according to the target return water temperature includes: determining a second target branch among the return water branches based on the return water temperature corresponding to the return water branch, wherein the second target branch is the branch with the highest return water temperature among the return water branches; adjusting the water supply flow rate of the supply branch corresponding to the second target branch to a third water supply flow rate; and adjusting the water supply flow rate of the remaining supply branches other than the second target branch according to the target return water temperature.

[0013] In some embodiments, adjusting the water supply flow rate of the water supply branch according to the target return water temperature includes: determining a third target branch in the water supply branch according to the water supply flow rate of the water supply branch, wherein the water supply flow rate of the third target branch is less than or equal to the fourth water supply flow rate; and adjusting the water supply flow rate of the remaining water supply branches other than the third target branch.

[0014] In some embodiments, a throttling valve is provided on the water supply branch between the water distributor and the heat exchange equipment, and the throttling valve is used to regulate the water flow rate of the water supply branch;

[0015] Adjust the water supply flow rate of the water supply branch according to the target return water temperature, including: adjusting the opening of the throttle valve on the water supply branch according to the target return water temperature.

[0016] In some embodiments, a flow detection module is provided on the water supply branch or the return branch, and the flow detection module is used to detect the flow rate of each branch;

[0017] Obtaining the water supply flow rate of the water supply branch includes: obtaining the water supply flow rate of the water supply branch through a flow detection module.

[0018] Secondly, this application provides a flow regulating device applied to an air conditioning system. The air conditioning system includes a water distributor, a water collector, and a heat exchange device. The water distributor is used to output cooling water to the heat exchange device through a water supply branch. The heat exchange device is used to exchange heat based on the cooling water to obtain return water. The water collector is used to collect the return water through a return water branch. The flow regulating device includes:

[0019] The acquisition module is used to acquire the return water temperature in the return water branch.

[0020] The determination module is used to determine the target return water temperature corresponding to the return water branch based on the return water temperature. The target return water temperature is the average value of the return water branch.

[0021] The regulating module is used to adjust the water supply flow rate of the water supply branch according to the target return water temperature.

[0022] Thirdly, this application provides an air conditioning system, which includes a memory, a processor, a water distributor, a water collector, and a heat exchange device. The water distributor is used to output cooling water to the heat exchange device through a water supply branch. The heat exchange device is used to exchange heat based on the cooling water to obtain return water. The water collector is used to recover the return water through a return water branch.

[0023] The memory stores computer programs;

[0024] When the processor executes a computer program, it is used to implement flow regulation through any of the flow regulation methods of the first aspect.

[0025] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program; when the computer program is executed, it implements the flow regulation method as described in the first aspect.

[0026] Fifthly, embodiments of this application provide a computer program product, including: a computer program that, when executed by a processor, implements the flow regulation method as described in the first aspect.

[0027] This application provides a flow regulation method, device, and air conditioning system. Based on the return water temperature of the water collector, the water supply flow of each water supply branch is dynamically adjusted to achieve dynamic thermal balance between the branches. This solution eliminates the need for modeling and complex relational construction; dynamic thermal balance regulation can be achieved simply by collecting some system operating parameters, demonstrating good engineering feasibility. Furthermore, this regulation method is fully automatic, requiring no manual adjustment, ensuring high reliability, preventing erroneous adjustments, and guaranteeing comfort in the air-conditioned area. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 A schematic diagram illustrating the principle of a cooling tower application scenario provided in this application embodiment;

[0030] Figure 2 A schematic diagram illustrating the principle of an end-user usage scenario provided in an embodiment of this application;

[0031] Figure 3 A schematic diagram of the structure of the air conditioning system provided in the embodiments of this application. Figure 1 ;

[0032] Figure 4 Flowchart of the flow regulation method provided in the embodiments of this application Figure 1 ;

[0033] Figure 5 A schematic diagram of the structure of the air conditioning system provided in the embodiments of this application. Figure 2 ;

[0034] Figure 6 Flowchart of the flow regulation method provided in the embodiments of this application Figure 2 ;

[0035] Figure 7 Example of a simulation model for the relationship between throttle valve opening and return water temperature provided in this application embodiment. Figure 1 ;

[0036] Figure 8 Flowchart of the flow regulation method provided in the embodiments of this application Figure 3 ;

[0037] Figure 9 Example of a simulation model for the relationship between throttle valve opening and return water temperature provided in this application embodiment. Figure 2 ;

[0038] Figure 10 This is a schematic diagram of the flow regulating device provided in the embodiments of this application;

[0039] Figure 11 A schematic diagram of the structure of the air conditioning system provided in the embodiments of this application. Figure 3 .

[0040] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0044] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

[0045] Currently, air conditioning systems generally suffer from problems such as unreasonable indoor temperature, poor comfort, and serious energy waste. These problems are caused by thermal imbalance in the air conditioning system, which is a specific manifestation of hydraulic imbalance (i.e., hydraulic disorder in the air conditioning system).

[0046] The discrepancy between the actual flow rate and the design flow rate in each branch of the air conditioning system's hydraulic network is called hydraulic imbalance in that branch. Hydraulic imbalance is a common and prominent problem in HVAC systems. Hydraulic imbalance in the air conditioning water system causes an imbalance in flow rate among users in different branches, easily leading to a situation where the flow rate in nearby branches is much greater than that in distant branches. This results in excessively high or low indoor temperatures for some users, severely impacting the comfort of those indoors.

[0047] Figure 1 , Figure 2 These are two application scenarios provided in the embodiments of this application. The following will combine them with... Figure 1 and Figure 2 The application scenarios and principles of this application are explained in detail.

[0048] In some embodiments, Figure 1This is a schematic diagram illustrating the principle of a cooling tower application scenario provided in this application embodiment. It should be understood that cooling towers play a crucial role in dissipating heat from the system; typical air conditioning systems typically have multiple cooling towers, which use cooling water as a circulating coolant.

[0049] like Figure 1 As shown, this air conditioning system uses n cooling towers as an example. The cooling water of the air conditioning system flows from the condenser of the main unit through heat exchange into each cooling tower along the cooling water supply main pipe. The inlet water temperature of each cooling tower is T. s The cooling tower uses cooling water for heat exchange, and the resulting return water flows into the refrigeration unit along the cooling water return main pipe, thus completing the cooling water circulation. Figure 1 T1, T2, ..., T n These are the outlet temperatures of the return water output from cooling tower 1, cooling tower 2... cooling tower n, respectively.

[0050] In related technologies, due to differences in pipe length and number of hydraulic components between different cooling towers, and the varying degrees of clogging and packing consumption after prolonged operation, the water flow resistance between different cooling towers deviates significantly. This results in a large difference in the flow rate of cooling water flowing into different cooling towers, leading to a significant temperature deviation in the return water of cooling towers of the same model and frequency, which is the aforementioned hydraulic imbalance phenomenon.

[0051] In some embodiments, Figure 2 This is a schematic diagram illustrating the principle of an end-user usage scenario provided in this application embodiment. The cooling water produced by the central air conditioning system is primarily supplied to the end-users, where it undergoes heat exchange in the end-users' heat exchange equipment (e.g., an indoor air conditioning unit), thereby cooling the indoor environment where the end-users reside.

[0052] Specifically, such as Figure 2 As shown, the air conditioning system's cooling water flows from the chilled water supply main into the distributor, and then from each branch in the distributor to each chilled water supply riser. The chilled water supply risers then supply cooling to end users in different areas, and the cooling water supply temperature to each end user is the same, T. S .

[0053] However, since the cooling load of end users fluctuates with changes in the outdoor environment, the number of people and equipment used indoors, when the cooling load changes, the cooling water flow demand in different areas will also change, and the return water temperature of the cooling water will also be different due to the differences in the cooling load of each user, resulting in hydraulic imbalance in each end user, which is the hydraulic imbalance phenomenon mentioned above.

[0054] If the flow rate of each terminal branch is not adjusted, the cooling capacity obtained by each terminal user will deviate significantly from the actual cooling capacity required, resulting in a large difference in the chilled water return temperature of each terminal user branch.

[0055] It can be seen that in the above-mentioned air conditioning systems, the hydraulic balance of each branch of the manifold and distributor plays a dominant role in the hydraulic balance of the terminal branches of each cooling area. Next, combined with... Figure 3 The implementation principle of the embodiments of this application will be explained as follows:

[0056] Figure 3 A schematic diagram of the air conditioning system provided in the embodiments of this application. Figure 1 .like Figure 3 As shown, this scenario includes a water distributor, a water collector, and heat exchange equipment (the heat exchange equipment can be the aforementioned cooling tower or the air conditioning equipment of the end users). When the water distributor, water collector, and end-user air conditioning equipment are involved, the corresponding component is chilled water; when the cooling tower is involved, the corresponding component is cooling water. Specifically, chilled water from the chiller unit flows into the water distributor through the chilled water supply main, and then flows from the various supply branches of the water distributor to the heat exchange equipment for cooling. After heat exchange, the chilled water flows from the heat exchange equipment to the water collector, and then flows back into the chiller unit through the chilled water return main, thus completing the chilled water circulation in the air conditioning system.

[0057] The return water temperature of chilled water in each branch of the manifold and distributor can effectively reflect the actual air conditioning load of each branch. Specifically, if the return water temperature of chilled water in a certain branch is too high, it indicates that the air conditioning load at the end of that branch is high. If the current flow rate of this branch is too low, the chilled water supply flow rate of this command should be increased. If the return water temperature of chilled water in a certain branch is too low, it indicates that the load of the heat exchange equipment at the end of that branch is too low. If the current chilled water flow rate of this branch is too high, the chilled water supply flow rate of this branch should be decreased.

[0058] Therefore, in traditional flow regulation methods, when hydraulic imbalance occurs, the operating frequency of the chilled water pumps is generally increased to increase the flow in the least flowing branch of the manifold or distributor, thereby meeting the load demand at the end of that branch. However, this method simultaneously increases the flow in all branches of the manifold or distributor, making the flow in branches that were already overflowing even greater, thus exacerbating the hydraulic imbalance in those branches. Furthermore, increasing the pump operating frequency also increases the energy consumption of the air conditioning system, which is not conducive to system energy saving.

[0059] In view of this, embodiments of this application provide a flow regulation method, device, and air conditioning system. Based on the return water temperature of the water collector, the water supply flow rate of each water supply branch is dynamically adjusted to achieve dynamic thermal balance of each branch in the air conditioning system. This solution eliminates the need for modeling and complex relational construction; dynamic thermal balance regulation can be achieved simply by collecting some system operating parameters. It has good engineering feasibility, and the regulation method is fully automatic, requiring no manual adjustment, ensuring high reliability and preventing erroneous adjustments. This guarantees the comfort of the area where the air conditioning system regulates temperature. Furthermore, the regulation of chilled water supply flow rate for each branch separately does not affect the water supply flow rate of other branches.

[0060] Next, through specific embodiments, we will explain in detail how the solutions provided in the embodiments of this application solve the above-mentioned technical problems.

[0061] Figure 4 Flowchart of the flow regulation method provided in the embodiments of this application Figure 1 It should be understood that the flow regulation method provided in the embodiments of this application can be applied to the above-mentioned... Figure 1 , Figure 2 as well as Figure 3 The air conditioning system shown.

[0062] like Figure 4 As shown, the flow regulation method provided in this application includes the following steps:

[0063] S401, Obtain the return water temperature in the return water branch.

[0064] It should be noted that the return water temperature can be the temperature at any specified location within each return water branch. In this embodiment, temperature sensors installed in each return water branch can be used to collect the return water temperature within the branch, and the collected return water temperature can be synchronously reported to the execution entity of this embodiment.

[0065] It should be understood that the embodiments of this application do not impose any particular limitation on the method of collecting return water temperature. For example, the temperature sensor can collect and report the temperature in real time; or, the temperature sensor can collect and report the return water temperature periodically according to a certain period.

[0066] S402. Determine the target return water temperature for the corresponding return water branch based on the return water temperature.

[0067] The target return water temperature is the average value of the return water branch.

[0068] On the one hand, the arithmetic mean is the average return water temperature of all return water branches. For example, using... Figure 1Taking the scenario shown as an example, the return water temperatures corresponding to return water branch 1, return water branch 2... return water branch n are T1, T2... T... n In this scenario, the target return water temperature T can be calculated using the following formula:

[0069]

[0070] On the other hand, the weighted average can be obtained from the weight coefficient of each return water branch and the return water temperature. The weight coefficient of the return water branch can be obtained from parameters such as the water flow rate and pipe diameter of the return water branch. As for the specific value of the weight coefficient of each return water branch, this application embodiment does not make any special limitation.

[0071] For example, in Figure 1 In the scenario shown, the weight coefficients corresponding to return water branch 1, return water branch 2, ..., return water branch n are a1, a2, ..., a1, respectively. n For example, the target return water temperature T can be obtained using the following formula:

[0072] T = a1 × T1 + a2 × T2 + ... + a n ×T n

[0073] S403. Adjust the water supply flow rate of the water supply branch according to the target return water temperature.

[0074] It should be noted that, as Figure 3 As shown, throttle valves are typically installed on water supply branches. By adjusting the opening of these throttle valves, the water flow rate of the corresponding branch can be adjusted. Therefore, in this embodiment, the opening of the throttle valves on each water supply branch can be adjusted using a proportional (P), integral (I), and derivative (D) controller (abbreviated as PID controller) until the return water temperature of each return water branch is close to the target return water temperature. The specific scheme for using PID to adjust the opening of the throttle valves is not detailed here.

[0075] This solution eliminates the need for modeling and complex relational construction; dynamic thermal balance regulation can be achieved simply by collecting some of the system's operating parameters. It boasts good engineering feasibility and ensures comfort in areas where the air conditioning system regulates temperature. Furthermore, when using a PID controller, the regulation process is fully automatic, requiring no manual adjustment and offering high reliability, preventing erroneous adjustments.

[0076] In some embodiments, a flow detection module can be installed on the water supply branch or return branch of the air conditioning system to collect the water flow in the pipeline, and then determine the required water supply flow for each water supply branch based on parameters such as return water temperature and flow.

[0077] It should be noted that the embodiments of this application do not impose any particular limitation on the type of flow detection module. For example, the flow detection module can be a flow meter.

[0078] In some embodiments, a temperature sensor and a flow meter for detecting the supply water temperature and return water temperature of the same circuit can be integrated into the same heat meter. The temperature sensor can be set on the supply water branch and the return water branch respectively, and the flow meter can be set at the inlet of the supply water branch or the outlet of the return water branch.

[0079] Figure 5 A schematic diagram of the air conditioning system provided in the embodiments of this application. Figure 2 It should be understood that... Figure 5 The heat meter shown is illustrated as an example installed on the water supply pipeline between the water distributor and the heat exchange equipment. In practical applications, there are no special restrictions on its installation location. For example, it can also be installed on the return water branch between the water collector and the heat exchange equipment.

[0080] like Figure 5 As shown, heat meter 1, heat meter 2... heat meter 3 are respectively installed on water supply branch 1, water supply branch 2... water supply branch n, and are used to collect the water supply and / or return water flow rate, as well as the water supply temperature and / or return water temperature of water supply branch 1, water supply branch 2... water supply branch n.

[0081] Next, in conjunction with specific embodiments, Figure 5 The implementation method and principle of the air conditioning system shown are explained in detail. Figure 6 Flowchart of the flow regulation method provided in the embodiments of this application Figure 2 It should be noted that the flow regulation method provided in this application embodiment is applied to, for example, Figure 5 The air conditioning system shown.

[0082] like Figure 6 As shown, the flow regulation method provided in this application includes the following steps:

[0083] S601, Obtain the return water temperature and supply water flow rate in the return water branch.

[0084] S602. Determine the target return water temperature for the return water branch based on the return water temperature and the supply water flow rate.

[0085] It should be noted that, in this embodiment, the target return water temperature can be the arithmetic mean or the weighted average of the return water temperatures of each return water branch.

[0086] Taking the target return water temperature as the weighted average of the return water temperatures of each return water branch as an example, the weighting coefficient of each return water branch can be determined based on the corresponding water supply flow rate. For example, the target return water temperature T can be obtained using the following formula:

[0087]

[0088] Among them, Q1, Q2…Q n These represent the water supply flow rates corresponding to return water branch 1, return water branch 2, ..., return water branch n, respectively. This is the weighting coefficient corresponding to the return water branch n.

[0089] S603. For each water supply branch, determine the corresponding heat load based on the water supply temperature, water supply flow rate and return water temperature of the water supply branch.

[0090] Specifically, the heat load of each water supply branch can be calculated using the following formula:

[0091] q1=cQ1(T1-T s )

[0092] q2=cQ2(T2-T s )

[0093] …

[0094] q n =cQ n (T n -T s )

[0095] Where q1, q2…q n Let Q1, Q2, ..., Qn be the heat loads corresponding to water supply branch 1, water supply branch 2, ..., water supply branch n, respectively, and let c be the current specific heat capacity of water, Q1, Q2, ..., Qn. n These represent the current water supply flow rates of return water branch 1, return water branch 2, ..., return water branch n, denoted as T1, T2, ..., Tn. n The current return water temperature, T, is for each of the return water branch 1, return water branch 2, ..., return water branch n. s The current water supply temperature is for water supply branch 1, water supply branch 2, ..., water supply branch n.

[0096] S604. Determine the first water supply flow rate of each water supply branch based on the heat load, target return water temperature, and supply water temperature. Specifically, the first water supply flow rate of each water supply branch can be obtained using the following formula:

[0097] q1=cQ1'(TT s )

[0098] q2=cQ2'(TT s )

[0099] …

[0100] q n =cQ n '(TT s )

[0101] Among them, Q'1, Q'2…Q' n These are the first water supply flow rates corresponding to return water branch 1, return water branch 2, ..., return water branch n, respectively, and T is the target return water temperature.

[0102] S605. For each water supply branch, determine the hydraulic imbalance of the water supply branch based on the heat load and target water supply flow rate corresponding to the water supply branch.

[0103] Among them, hydraulic misalignment is the ratio between the actual water supply flow of each water supply branch and the first water supply flow.

[0104] Specifically, the hydraulic imbalance of each water supply branch can be determined using the following formula:

[0105]

[0106] Where x1, x2…x n These are the hydraulic outages corresponding to water supply branch 1, water supply branch 2, ..., water supply branch n, respectively.

[0107] S606. Based on the hydraulic imbalance of each water supply branch, determine the first target branch among the water supply branches.

[0108] The first target branch is the branch with the smallest hydraulic displacement among the water supply branches, or the branch with hydraulic displacement less than or equal to a preset value. In other words, the first target branch is a branch with relatively low flow.

[0109] S607. Adjust the water supply flow rate of the first target branch to the second water supply flow rate.

[0110] It should be noted that for a water supply branch, the smaller the hydraulic imbalance, the smaller the current water supply flow. In this case, it is necessary to increase the water flow of the water supply branch to alleviate the hydraulic imbalance.

[0111] In this embodiment of the application, the magnitude of the second water supply flow rate is not particularly limited. On the one hand, the second water supply flow rate can be a fixed magnitude. For example, the second water supply flow rate can be the maximum flow rate of the water supply branch, or it can be a flow rate value such as 80% or 90% of the maximum flow rate.

[0112] On the other hand, the second water supply flow corresponding to the hydraulic imbalance of the first target branch can be determined based on the correspondence between water supply flow and hydraulic imbalance. For example, if the current hydraulic imbalance of a branch is larger, it means that the current water supply flow required by the branch is smaller (that is, the second water supply flow is smaller); if the current hydraulic imbalance of a branch is smaller, it means that the current water supply flow required by the branch is larger (that is, the second water supply flow is smaller).

[0113] In this embodiment of the application, the water supply flow of the branch with the smallest hydraulic misalignment is adjusted by adjusting the hydraulic misalignment of each water supply branch. This can quickly adjust the branch with poor hydraulic misalignment, thereby mitigating the hydraulic misalignment of that water supply branch.

[0114] In some alternative implementations, such as Figure 5 As shown, each water supply branch is also equipped with a throttle valve. By adjusting the opening of the throttle valve, the water supply flow rate of the corresponding water supply branch can be adjusted. Therefore, in this embodiment, the water supply flow rate of the first target branch can be adjusted to the second water supply flow rate by adjusting the opening of the throttle valve on the first target branch.

[0115] In this embodiment, by adjusting the throttle valve opening of the first target branch, the overall valve opening of each water supply branch can be increased, thereby effectively reducing the pipeline resistance, reducing the pump head, and achieving a more energy-efficient effect.

[0116] S608. Adjust the water supply flow rate of the remaining water supply branches, excluding the first target branch, to the first water supply flow rate.

[0117] Similarly, in this embodiment, the water flow rate of the remaining water supply branches can be adjusted by changing the opening degree of the throttle valves on the remaining water supply branches.

[0118] In some optional implementations, after obtaining the water supply flow rate of each water supply branch through step S601, the following steps may also be performed:

[0119] Based on the water supply flow rate of the water supply branch, determine the third target branch in the water supply branch, where the water supply flow rate of the third target branch is less than or equal to the fourth water supply flow rate.

[0120] When performing step S608, specifically: the water supply flow rate of the water supply branches other than the first target branch and the third target branch is adjusted to the first water supply flow rate.

[0121] It should be noted that the fourth water supply flow rate can be a fixed value, for example, the fourth water supply flow rate can be 0, 10% or 20%, etc.

[0122] When the water supply flow rate of a certain branch is less than or equal to the fourth water supply flow rate, it indicates that the water supply of that branch is small, the heat exchange equipment in that branch is not performing heat exchange, or the heat exchange equipment requires very little cooling water. In this case, it is not necessary to continue cooling that branch. During the adjustment process, the water supply flow rate of that branch does not need to be adjusted; only the water supply flow rates of the other branches need to be adjusted.

[0123] In some alternative implementations, the water flow rate of the third target branch can be adjusted to 0; specifically, the throttle valve of the third target branch can be closed.

[0124] Figure 7 Example of a simulation model for the relationship between throttle valve opening and return water temperature provided in this application embodiment. Figure 1 .in, Figure 7 Figure (a) shows the process of adjusting the opening of the throttle valve, and Figure (b) shows the temperature change of the return water as the opening of the throttle valve is adjusted. It should be noted that... Figure 7 The examples used are branch 1, branch 2, and branch 3, but in actual applications, this is not a limitation.

[0125] Depend on Figure 7 It can be seen that as the opening of the throttle valve changes, the deviation between the return water temperatures of each branch becomes smaller and smaller, and they become closer and closer to the target return water temperature, eventually reaching a state that is basically the same.

[0126] Simulation results show that the flow regulation method provided in this application embodiment can effectively regulate the flow of each branch in the water collector and distributor, and ultimately make the return water temperature of each branch basically the same, so as to achieve thermal balance of each branch.

[0127] In some scenarios, certain air conditioning systems typically only install temperature sensors on each branch of the manifold and / or collector, without installing flow detection modules (e.g.) Figure 3 (The air conditioning system shown). For this type of air conditioning system, it is impossible to measure the water supply flow rate of each branch, and therefore it is impossible to dynamically adjust the flow rate of each branch based on the water supply flow rate. In view of this, in the embodiments of this application, for air conditioning systems that cannot collect water supply flow rate, the chilled water flow rate of each branch can also be adjusted according to the return water temperature of each return water branch.

[0128] The adjustment method will now be described in detail with reference to specific embodiments:

[0129] Figure 8 Flowchart of the flow regulation method provided in the embodiments of this application Figure 3 It should be noted that the flow regulation method provided in this application embodiment can be applied to, for example... Figure 3 The air conditioning system shown.

[0130] like Figure 8 As shown, the flow regulation method provided in this application includes the following steps:

[0131] S801, Obtain the return water temperature of the return water branch.

[0132] S802. Determine the target return water temperature for the corresponding return water branch based on the return water temperature.

[0133] The target return water temperature is the arithmetic mean of the return water temperatures of each return water branch.

[0134] It should be noted that steps S801 to S802 are the same as... Figure 4 The principles of steps S401 to S402 in the illustrated embodiment are similar and will not be repeated here.

[0135] S803. Determine the second target branch in the return water branch based on the return water temperature corresponding to the return water branch.

[0136] S804. Adjust the water supply flow rate of the water supply branch corresponding to the second target branch to the third water supply flow rate.

[0137] The second target branch is the branch with the highest return water temperature among all return water branches.

[0138] It should be noted that if the return water temperature of the return water branch is high, it means that the heat exchange equipment corresponding to the return water branch is currently not receiving enough cooling water, that is, the return water branch is under-flow branch. In this case, the cooling water flow rate of the instruction can be appropriately increased, that is, the water supply flow rate of the second target branch can be adjusted to the third water supply flow rate.

[0139] In this embodiment of the application, the magnitude of the third water supply flow rate is not particularly limited. On the one hand, the third water supply flow rate can be a fixed magnitude. For example, the third water supply flow rate can be the maximum flow rate of the water supply branch, or it can be a flow rate value such as 80% or 90% of the maximum flow rate.

[0140] On the other hand, the third water supply flow rate corresponding to the return water temperature of the second target branch can be determined based on the correspondence between the water supply flow rate and the return water temperature. Specifically, the higher the return water temperature, the greater the current required water supply flow rate (i.e., the greater the third water supply flow rate), and the lower the return water temperature, the smaller the current required water supply flow rate (i.e., the smaller the third water supply flow rate).

[0141] In this embodiment, by adjusting the water supply flow of the branch with the highest return water temperature, the under-flow branch can be adjusted as soon as possible, thereby mitigating the hydraulic imbalance of the water supply branch.

[0142] In some alternative implementations, such as Figure 3 As shown, each water supply branch is also equipped with a throttle valve. By adjusting the opening of the throttle valve, the water supply flow rate of the corresponding water supply branch can be adjusted. Therefore, in this embodiment, the water supply flow rate of the second target branch can be adjusted to the third water supply flow rate by adjusting the opening of the throttle valve on the second target branch.

[0143] In this embodiment, by adjusting the opening of the throttle valve of the second target branch, the overall valve opening of each water supply branch can be increased, thereby effectively reducing the pipeline resistance, reducing the pump head, and achieving a more energy-efficient effect.

[0144] S806. Adjust the water supply flow rate of all water supply branches except the second target branch to the first water supply flow rate.

[0145] Similarly, in this embodiment, the water flow rate of the remaining water supply branches can be adjusted by changing the opening degree of the throttle valves on the remaining water supply branches.

[0146] In some optional implementations, before obtaining the return water temperature of each return water branch in step S801, the following steps may also be performed:

[0147] Based on the water supply flow rate of the water supply branch, determine the third target branch in the water supply branch, where the water supply flow rate of the third target branch is less than or equal to the fourth water supply flow rate.

[0148] Furthermore, when performing step S806, the water supply flow rate of the water supply branches other than the first target branch and the second target branch is adjusted to the first water supply flow rate.

[0149] It should be noted that the fourth water supply flow rate can be a fixed value, such as 0%, 10%, or 20%. For air conditioning systems without a flow detection module, the water supply flow rate of each branch can be determined based on the opening of the throttle valve. For example, if the opening of the throttle valve corresponding to a branch is 0%, it means that the water supply flow rate of that branch is 0; if the opening of the throttle valve corresponding to a branch is 10%, it means that the current water supply flow rate of that branch is 10%.

[0150] Specifically, when the water supply flow rate of a certain branch is less than or equal to the fourth water supply flow rate, it indicates that the water supply volume of that branch is small, the heat exchange equipment of that branch is not in a heat exchange state, or the heat exchange equipment requires very little cooling water. In this case, it is not necessary to continue cooling that branch. During the adjustment process, the water supply flow rate of that branch does not need to be adjusted; only the water supply volume of the other branches needs to be adjusted.

[0151] In some alternative implementations, the water flow rate of the second target branch can be adjusted to 0; specifically, the throttle valve of the third target branch can be closed.

[0152] Figure 9 Example of a simulation model for the relationship between throttle valve opening and return water temperature provided in this application embodiment. Figure 2 .in, Figure 9 Figure (a) shows the process of adjusting the opening of the throttle valve, and Figure (b) shows the temperature change of the return water as the opening of the throttle valve is adjusted. It should be noted that... Figure 9 The examples used are branch 1, branch 2, and branch 3, but in actual applications, this is not the limitation.

[0153] Depend on Figure 9 It can be seen that as the opening of the throttle valve changes, the deviation between the return water temperatures of each branch becomes smaller and smaller, and they become closer and closer to the target return water temperature, eventually reaching a state that is basically the same.

[0154] The simulation results show that the flow regulation method provided in this application embodiment, which uses the return water temperature as a reference, can effectively regulate the flow of each branch in the collector and distributor, and ultimately make the return water temperature of each branch basically the same, so as to achieve the thermal balance of each branch.

[0155] In some embodiments, such as Figure 7 and Figure 9 As shown, the weighted average of the return water temperatures of each return water branch is used as the target return water temperature to adjust the water supply flow rate of the supply water branch. This is in contrast to adjusting the water supply flow rate of the supply water branch using the arithmetic mean of the return water temperatures of each return water branch. Figure 7 The convergence time is shorter, and the adjustment time of the throttle valve is less.

[0156] Therefore, as a preferred solution, installing a flow detection module in the manifold and distributor, and using the weighted average of the return water temperature of each return water branch to regulate the water supply flow, can increase the regulation efficiency of the dynamic flow regulation process and enable each branch to reach a state of hydraulic balance in a shorter time.

[0157] Figure 10 This is a schematic diagram of the flow regulating device provided in an embodiment of this application. It should be understood that the flow regulating device in this embodiment is applied to an air conditioning system, which includes a water distributor, a water collector, and a heat exchange device. The water distributor is used to output cooling water to the heat exchange device through a supply branch. The heat exchange device is used to exchange heat based on the cooling water to obtain return water. The water collector is used to collect the return water through a return water branch. For the structure and principle of the air conditioning system, please refer to the above embodiment; further details are omitted here.

[0158] For example Figure 10 As shown, the flow regulating device 1000 includes:

[0159] The acquisition module 1001 is used to acquire the return water temperature in the return water branch;

[0160] The determination module 1002 is used to determine the target return water temperature corresponding to the return water branch based on the return water temperature. The target return water temperature is the average value of the return water branch.

[0161] The regulating module 1003 is used to adjust the water supply flow rate of the water supply branch according to the target return water temperature.

[0162] In some embodiments, in response to the target return water temperature being a weighted average of the return water temperatures of the return water branches, the determining module 1002 is specifically configured to: obtain the water supply flow rate of the water supply branches;

[0163] Determine the target return water temperature for the corresponding return water branch based on the return water temperature and the supply water flow rate.

[0164] In some embodiments, the determining module 1002 is specifically used for:

[0165] For each water supply branch, the heat load corresponding to the water supply branch is determined based on the water supply temperature, water supply flow rate and return water temperature of the water supply branch.

[0166] The first water supply flow rate of the water supply branch is determined based on the heat load, the target return water temperature, and the supply water temperature.

[0167] Adjust the water supply flow rate of the water supply branch to the first water supply flow rate.

[0168] In some embodiments, the adjustment module 1003 is specifically used to: determine the hydraulic misalignment of each water supply branch based on the heat load corresponding to the water supply branch and the target water supply flow rate;

[0169] Based on the hydraulic misalignment of each water supply branch, the first target branch is determined. The first target branch is the branch with the smallest hydraulic misalignment among the water supply branches, or the first target branch is the branch with a hydraulic misalignment less than or equal to a preset value.

[0170] Adjust the water supply flow rate of the first target branch to the second water supply flow rate;

[0171] Adjust the water supply flow rate of all water supply branches except the first target branch to the first water supply flow rate.

[0172] In some embodiments, in response to the target return water temperature being the arithmetic mean of the return water branches, the determining module 1002 is specifically used for:

[0173] Based on the return water temperature corresponding to the return water branch, determine the second target branch in the return water branch. The second target branch is the branch with the highest return water temperature in the return water branch.

[0174] Adjust the water supply flow rate of the water supply branch corresponding to the second target branch to the third water supply flow rate;

[0175] Adjust the water flow rate of the remaining water supply branches, excluding the second target branch, according to the target return water temperature.

[0176] In some embodiments, the adjustment module 1003 is specifically used to: determine a third target branch in the water supply branch according to the water supply flow rate of the water supply branch, wherein the water supply flow rate of the third target branch is less than or equal to the fourth water supply flow rate;

[0177] Adjust the water supply flow of the remaining water supply branches, excluding the third target branch.

[0178] In some embodiments, a throttling valve is provided on the water supply branch between the water distributor and the heat exchange equipment. The regulating module 1003 is specifically used to: adjust the opening of the throttling valve on the water supply branch according to the target return water temperature.

[0179] In some embodiments, a flow detection module is provided on the water supply branch or the return branch. The flow detection module is used to detect the flow rate of each branch. The acquisition module 1001 is specifically used to: acquire the water supply flow rate of the water supply branch through the flow detection module.

[0180] It should be noted that the acquisition module 1001 in the above embodiments can actually be a receiver, used to receive information sent by other devices or measurement units, such as receiving the return water temperature sent by a temperature sensor, or receiving the water supply flow rate sent by a heat meter, etc. The acquisition module 1001 can be implemented through a communication port.

[0181] In some optional embodiments, the determining module 1002 or the regulating module 1003 can be implemented in software via a processing element or in hardware. For example, the determining module 1002 or the regulating module 1003 can be a separately established processing element or integrated into a chip of the return air temperature determining device. Furthermore, it can be stored as program code in the storage module of the flow regulating device 1000, for one of the processing elements of the flow regulating device 1000 to call and execute some or all of the functions of the regulating module 1003.

[0182] Furthermore, all or part of these processing elements can be integrated together or implemented independently. The module here can be an integrated circuit with signal processing capabilities. During implementation, each step of the above method or each of the above modules can be completed through integrated logic circuits in the hardware of the processor element or through software instructions.

[0183] For example, these modules can be one or more integrated circuits configured to implement the above flow regulation methods. Examples include one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs). Furthermore, when a module is implemented using processing element scheduler code, the processing element can be the same processor, such as a central processing unit (CPU) or other processor capable of calling the program code. These modules can also be integrated together as a system-on-a-chip.

[0184] In some embodiments, this application also provides an air conditioning system. Figure 11 This is a schematic diagram of the structure of an air conditioning system provided in an embodiment of this application. Figure 11 As shown, the air conditioning system 1100 includes: a processor 1101, a memory 1102, a water distributor, a water collector, and a heat exchange device. The water distributor is used to output chilled water to the heat exchange device through a water supply branch. The heat exchange device is used to exchange heat based on the cooling water to obtain return water. The water collector is used to recover the return water through a return water branch.

[0185] For details regarding the specific structure of the air conditioning system 1100, the arrangement of its components, and its operating principle, please refer to the above embodiments; these details will not be repeated here.

[0186] In this embodiment, the memory 1102 and the processor 1101 are electrically connected directly or indirectly to achieve data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses or signal lines, such as bus 1103. The memory 1102 stores computer execution instructions that implement data access control methods, including at least one software functional module that can be stored in the memory in the form of software or firmware. The processor 1101 executes various functional applications and data processing by running the software program and module stored in the memory.

[0187] The memory 1102 may be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), etc. The memory stores programs, which are then executed by the processor upon receiving execution instructions. Furthermore, the software programs and modules within the memory may include an operating system, which may include various software components and / or drivers for managing system tasks (e.g., memory management, storage device control, power management), and can communicate with various hardware or software components to provide an operating environment for other software components.

[0188] Processor 1101 can be an integrated circuit chip with signal processing capabilities. The aforementioned processor 1101 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor.

[0189] It should be noted that the indoor unit provided in this embodiment can be used to perform the above-mentioned flow regulation method, and its implementation method and technical effect are similar, so it will not be described again here.

[0190] Embodiments of this application also provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the flow regulation method in the above method embodiments.

[0191] Embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, is used to implement the temperature regulation method described in the above method embodiments.

[0192] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0193] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0194] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A flow rate regulation method, characterized in that, The invention is applied to an air conditioning system, which includes a water distributor, a water collector, and a heat exchange device. The water distributor is used to output cooling water to the heat exchange device through a water supply branch. The heat exchange device is used to exchange heat based on the cooling water to obtain return water. The water collector is used to recover the return water through a return water branch. The flow regulation method includes: Obtain the return water temperature in the return water branch; Based on the return water temperature, the target return water temperature corresponding to the return water branch is determined, and the target return water temperature is the average value of the return water branch. Adjust the water supply flow rate of the water supply branch according to the target return water temperature; When the target return water temperature is the weighted average of the return water temperatures of the return water branches, determining the target return water temperature corresponding to the return water branch based on the return water temperature includes: Obtain the water supply flow rate of the aforementioned water supply branch; The target return water temperature corresponding to the return water branch is determined based on the return water temperature and the supply water flow rate. The step of adjusting the water supply flow rate of the water supply branch according to the target return water temperature includes: For each water supply branch, the heat load corresponding to the water supply branch is determined based on the water supply temperature, the water supply flow rate, and the return water temperature. The first water supply flow rate of the water supply branch is determined based on the heat load, the target return water temperature, and the supply water temperature. Adjust the water supply flow rate of the water supply branch to the first water supply flow rate; Adjusting the water supply flow rate corresponding to the water supply branch to the first water supply flow rate includes: For each water supply branch, the hydraulic misalignment of the water supply branch is determined based on the heat load corresponding to the water supply branch and the first water supply flow rate. Based on the hydraulic misalignment of each water supply branch, a first target branch is determined among the water supply branches. The first target branch is the branch with the smallest hydraulic misalignment among the water supply branches, or the first target branch is the branch with a hydraulic misalignment less than or equal to a preset value among the water supply branches. Adjust the water supply flow rate of the first target branch to the second water supply flow rate; The water supply flow rate of the remaining water supply branches, excluding the first target branch, is adjusted to the first water supply flow rate.

2. The flow rate regulation method according to claim 1, characterized in that, In response to the target return water temperature being the arithmetic average of the return water branch, adjusting the water supply flow rate of the supply branch according to the target return water temperature includes: Based on the return water temperature corresponding to the return water branch, determine the second target branch among the return water branches, where the second target branch is the branch with the highest return water temperature among the return water branches; Adjust the water supply flow rate of the water supply branch corresponding to the second target branch to the third water supply flow rate; Adjust the water flow rate of the remaining water supply branches, excluding the second target branch, according to the target return water temperature.

3. The flow rate regulation method according to claim 1 or 2, characterized in that, The step of adjusting the water supply flow rate of the water supply branch according to the target return water temperature includes: Based on the water supply flow rate of the water supply branch, a third target branch is determined among the water supply branches, wherein the water supply flow rate of the third target branch is less than or equal to the fourth water supply flow rate; Adjust the water supply flow rate of the remaining water supply branches, excluding the third target branch.

4. The flow rate regulation method according to claim 1 or 2, characterized in that, A throttling valve is installed on the water supply branch between the water distributor and the heat exchange equipment. The throttling valve is used to regulate the water flow rate of the water supply branch. The step of adjusting the water supply flow rate of the water supply branch according to the target return water temperature includes: Adjust the opening of the throttle valve on the water supply branch according to the target return water temperature.

5. The flow rate regulation method according to claim 1, characterized in that, A flow detection module is installed on the water supply branch or the return branch, and the flow detection module is used to detect the flow rate of each branch; The step of obtaining the water supply flow rate of the water supply branch includes: The water supply flow rate of the water supply branch is obtained through the flow detection module.

6. A flow regulating device, characterized in that, The invention is applied to an air conditioning system, which includes a water distributor, a water collector, and a heat exchange device. The water distributor is used to output cooling water to the heat exchange device through a water supply branch. The heat exchange device is used to exchange heat based on the cooling water to obtain return water. The water collector is used to recover the return water through a return water branch. The flow regulating device includes: The acquisition module is used to acquire the return water temperature in the return water branch; The determining module is used to determine the target return water temperature corresponding to the return water branch based on the return water temperature, wherein the target return water temperature is the average value of the return water branch; The adjustment module is used to adjust the water supply flow rate of the water supply branch according to the target return water temperature; When the target return water temperature is the weighted average of the return water temperatures of the return water branches, the determining module is used to: Obtain the water supply flow rate of the aforementioned water supply branch; The target return water temperature corresponding to the return water branch is determined based on the return water temperature and the supply water flow rate. The determining module is also used for: For each water supply branch, the heat load corresponding to the water supply branch is determined based on the water supply temperature, the water supply flow rate, and the return water temperature. The first water supply flow rate of the water supply branch is determined based on the heat load, the target return water temperature, and the supply water temperature. Adjust the water supply flow rate of the water supply branch to the first water supply flow rate; The determining module is also used for: For each water supply branch, the hydraulic misalignment of the water supply branch is determined based on the heat load corresponding to the water supply branch and the first water supply flow rate. Based on the hydraulic misalignment of each water supply branch, a first target branch is determined among the water supply branches. The first target branch is the branch with the smallest hydraulic misalignment among the water supply branches, or the first target branch is the branch with a hydraulic misalignment less than or equal to a preset value among the water supply branches. Adjust the water supply flow rate of the first target branch to the second water supply flow rate; The water supply flow rate of the remaining water supply branches, excluding the first target branch, is adjusted to the first water supply flow rate.

7. An air conditioning system, characterized in that, The device includes a memory, a processor, a water distributor, a water collector, and a heat exchange device. The water distributor is used to output cooling water to the heat exchange device through a water supply branch. The heat exchange device is used to exchange heat based on the cooling water to obtain return water. The water collector is used to collect the return water through a return water branch. The memory stores computer programs; When the processor executes the computer program, it is used to implement flow regulation by any one of the flow regulation methods according to claims 1-5.

8. A computer-readable storage medium storing a computer program that, when executed, implements the flow regulation method as described in any one of claims 1-5.

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