Water system flow control methods, devices, electronic devices and storage media

Abstract

This application relates to a method, apparatus, electronic device, and storage medium for controlling water flow in a water system. The method includes: acquiring the inlet water temperature, outlet water temperature, and operating level of a generator unit, wherein the operating level is determined based on the unit's actual operating power and rated power; determining the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, outlet water temperature, and operating level; and controlling the water flow rate of the water system based on the actual inlet and outlet water temperature difference. This application improves the accuracy of water flow control during actual operation of the water system.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to a method, apparatus, electronic device, and storage medium for controlling water flow in a water system. Background Technology

[0002] Water systems have advantages such as good stability and low operating costs. Therefore, water systems are often used in central air conditioning and underfloor heating equipment. A water system consists of a unit, water pipes, water pumps and system controller.

[0003] Currently, most commonly used water systems determine the inlet and outlet water temperature difference by measuring the temperature difference between the inlet and outlet water in the main pipe. The water flow rate is then controlled based on this temperature difference. This method typically regulates water flow when the system's units are operating at full load. However, in actual operation, the water system's units are not always at full load. In such cases, controlling the water flow using this method can easily affect the accuracy of the flow control, potentially failing to meet the user's required ambient temperature and thus impacting the user experience.

[0004] Therefore, improving the accuracy of water flow control in water systems is a problem that needs to be solved. Summary of the Invention

[0005] This embodiment provides a water system flow control method, apparatus, electronic device, and storage medium to improve the accuracy of water system flow control.

[0006] In a first aspect, this embodiment provides a water system flow control method, characterized in that the water system includes a generator unit, and the water system flow control method includes:

[0007] The inlet water temperature, outlet water temperature, and operating energy level of the unit are obtained, wherein the operating energy level is determined based on the actual operating power and rated power of the unit;

[0008] The actual inlet and outlet water temperature difference of the water system is determined based on the inlet water temperature, the outlet water temperature, and the operating energy level.

[0009] The water flow rate of the water system is controlled based on the actual temperature difference between the inlet and outlet water.

[0010] In some embodiments, determining the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, the outlet water temperature, and the operating energy level includes:

[0011] Determine the temperature difference between the inlet water temperature and the outlet water temperature;

[0012] The ratio of the temperature difference to the operating energy level is determined as the actual inlet and outlet water temperature difference value.

[0013] In some embodiments, the unit includes multiple sub-units, each sub-unit including multiple sub-unit modules, and determining the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, the outlet water temperature, and the operating level includes:

[0014] Determine the inlet and outlet water temperatures for each sub-unit module;

[0015] The inlet and outlet water temperature difference value of each sub-unit module is determined based on the inlet and outlet water temperatures of each sub-unit module.

[0016] Determine the operating energy level of each of the aforementioned sub-unit modules;

[0017] Based on a preset operating energy level threshold, N sub-unit modules are determined from the plurality of sub-unit modules, where N is a positive integer;

[0018] Determine the sum of the inlet and outlet water temperature differences of the N sub-unit modules, and the sum of the operating energy levels of the N sub-unit modules;

[0019] The actual inlet and outlet water temperature difference is determined by the ratio of the sum of the inlet and outlet water temperature differences of the N sub-unit modules to the sum of the operating energy levels of the N sub-unit modules.

[0020] In some embodiments, determining the inlet water temperature of each of the sub-unit modules includes:

[0021] Obtain the inlet water temperature of each of the aforementioned sub-units;

[0022] The average inlet water temperature of all the sub-units is determined as the inlet water temperature of each sub-unit module.

[0023] In some embodiments, determining N sub-unit modules from a plurality of sub-unit modules according to a preset operating energy level threshold includes determining N sub-unit modules from the plurality of sub-unit modules whose operating energy level is not zero.

[0024] In some embodiments, determining N sub-unit modules from a plurality of sub-unit modules according to a preset operating energy level threshold includes determining N sub-unit modules with an operating energy level of 100% from the plurality of sub-unit modules.

[0025] In some embodiments, controlling the water flow rate of the water system based on the actual inlet and outlet water temperature difference includes:

[0026] Determine the preset inlet and outlet water temperature difference;

[0027] The water flow rate of the water system is adjusted according to the deviation between the actual inlet and outlet water temperature difference and the preset inlet and outlet water temperature difference.

[0028] Secondly, this embodiment provides a water system flow control device, comprising:

[0029] The acquisition module is used to acquire the inlet water temperature, outlet water temperature, and operating energy level of the unit, wherein the operating energy level is determined based on the actual operating power and rated power of the unit;

[0030] The determination module is used to determine the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, the outlet water temperature, and the operating energy level.

[0031] The control module is used to control the water flow rate of the water system based on the actual temperature difference between the inlet and outlet water.

[0032] Thirdly, this embodiment provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the water system flow control method described in the first aspect above.

[0033] Fourthly, this embodiment provides a storage medium storing a computer program that, when executed by a processor, implements the water system flow control method described in the first aspect above.

[0034] Compared with related technologies, the water system flow control method, device, electronic device and storage medium provided in this embodiment determine the actual inlet and outlet water temperature difference of the water system by using the inlet water temperature, outlet water temperature and operating energy level of the unit. The operating energy level of the unit is used as a factor in determining the actual inlet and outlet water temperature difference of the water system, so that the determined actual inlet and outlet water temperature difference can effectively reflect the actual water flow of the water system during operation. Furthermore, the water flow of the water system is controlled according to the actual inlet and outlet water temperature difference, thereby improving the accuracy of water system flow control.

[0035] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0037] Figure 1This is a hardware structure block diagram of a terminal for a water system flow control method provided in an embodiment of this application.

[0038] Figure 2 This is a flowchart of a water system flow control method provided in an embodiment of this application.

[0039] Figure 3 This is a schematic diagram of a water system structure provided in an embodiment of this application.

[0040] Figure 4 This is a structural block diagram of a water system flow control device provided in an embodiment of this application. Detailed Implementation

[0041] To better understand the purpose, technical solution, and advantages of this application, the application is described and explained below in conjunction with the accompanying drawings and embodiments.

[0042] Unless otherwise defined, the technical or scientific terms used in this application shall have the general meaning as understood by one of ordinary skill in the art to which this application pertains. Words such as “a,” “an,” “an,” “the,” “the,” and “these,” used in this application, do not indicate quantitative limitation and may be singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or modules (units) is not limited to the listed steps or modules (units) but may include steps or modules (units) not listed, or may include other steps or modules (units) inherent to such processes, methods, products, or devices. The terms “connected,” “linked,” and “coupled,” used in this application, are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. The term “multiple” used in this application refers to two or more. The "and / or" operator describes the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: A alone, A and B simultaneously, and B alone. Typically, the character " / " indicates that the objects before and after it are in an "or" relationship. The terms "first," "second," and "third," etc., used in this application are merely for distinguishing similar objects and do not represent a specific ordering of the objects.

[0043] The method embodiments provided in this example can be executed on a terminal, computer, or similar computing device. For example, it can run on a terminal. Figure 1 This is a hardware structure block diagram of a terminal for a water system flow control method provided in an embodiment of this application. For example... Figure 1 As shown, a terminal may include one or more ( Figure 1Only one is shown in the diagram. A processor 102 and a memory 104 for storing data are also included. The processor 102 may be, but is not limited to, a microprocessor (MCU) or a programmable logic device (FPGA). The terminal may also include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that… Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the terminal described above. For example, the terminal may also include components that are larger than... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown are illustrated.

[0044] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the water system flow control method in this embodiment. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thereby implementing the above-described method. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0045] The transmission device 106 is used to receive or send data via a network. This network includes a wireless network provided by the terminal's communication provider. In one example, the transmission device 106 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device 106 can be a Radio Frequency (RF) module used for wireless communication with the Internet.

[0046] Water systems have advantages such as good stability and low operating costs. Therefore, water systems are often used in central air conditioning and underfloor heating equipment. A water system consists of a unit, water pipes, water pumps and system controller.

[0047] Currently, most commonly used water systems determine the inlet and outlet water temperature difference by measuring the temperature difference between the inlet and outlet water in the main pipe. The water flow rate is then controlled based on this temperature difference. This method typically regulates water flow when the system's units are operating at full load. However, in actual operation, the water system's units are not always at full load. In such cases, controlling the water flow using this method can easily affect the accuracy of the flow control, potentially failing to meet the user's required ambient temperature and thus impacting the user experience.

[0048] Therefore, this application provides a water system flow control method, apparatus, electronic device, and storage medium to improve the accuracy of water system flow control.

[0049] In this embodiment of the application, the subject executing the method can be an electronic device. Optionally, the electronic device can be a server or a terminal device, but this application is not limited to this.

[0050] Please follow Figure 2 , Figure 2 This is a flowchart of a water system flow control method provided in an embodiment of this application, such as... Figure 2 As shown, the process includes the following steps:

[0051] Step S201: Obtain the inlet water temperature, outlet water temperature, and operating energy level of the unit.

[0052] It should be understood that the water system in the embodiments of this application can be a hot (cold) water system in an air conditioning or underfloor heating system for heat exchange. Specifically, the water system may include a unit, which may be a centralized air conditioning or process hot (cold) water equipment with air as a heat (cold) source, driven by a steam compression refrigeration cycle driven by an electric motor, and a heat exchanger and compressor in the unit. The heat exchanger contains refrigerant pipelines and water pipelines, and the refrigerant and water exchange heat in the heat exchanger.

[0053] For example, the inlet and outlet water temperatures of the unit are detected by sensors, and the operating level of the unit is determined by the system controller of the water system. The operating level is determined based on the actual operating power and rated power of the unit. Specifically, the operating level can be the ratio of the actual operating power to the rated power of the unit.

[0054] Step S202: Determine the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, outlet water temperature, and operating energy level.

[0055] For example, the actual inlet and outlet water temperature difference of the water system is determined based on the ratio of the temperature difference between the inlet and outlet water temperatures of the unit to the operating energy level.

[0056] Step S203: Control the water flow rate of the water system according to the actual temperature difference between the inlet and outlet water.

[0057] In actual operation, the water system is not always running at full load; that is, the operating level of the unit is not always at rated power. Therefore, when water of the same size and temperature flows into units with different operating levels, the heat exchanged is different, resulting in different water temperatures and flow rates when the water flows out of the unit. Thus, the inlet and outlet water temperature difference is related to the unit's operating level. In the above process, the actual inlet and outlet water temperature difference of the unit is determined by the inlet and outlet water temperatures and the operating level of the unit in the water system. This allows us to determine the actual inlet and outlet water temperature difference of the water system at different operating levels. Furthermore, the water flow rate of the water system is controlled based on the actual inlet and outlet water temperature difference, thereby improving the accuracy of water flow rate control.

[0058] In some specific embodiments, determining the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, outlet water temperature, and operating energy level may include the following steps:

[0059] Step 1: Determine the temperature difference between the inlet water temperature and the outlet water temperature.

[0060] Step 2: Determine the actual inlet and outlet water temperature difference by the ratio of the temperature difference to the operating energy level.

[0061] For example, firstly, the temperature difference between the inlet water temperature and the outlet water temperature of the unit is determined. Then, the ratio of the temperature difference to the operating level of the unit is determined as the actual inlet and outlet water temperature difference value of the unit.

[0062] In the above implementation process, the ratio of the inlet and outlet water temperature difference of the unit to the operating energy level is determined as the actual inlet and outlet water temperature difference of the unit. This allows the inlet and outlet water temperature difference corresponding to the unit operating at rated power to be determined. Furthermore, water flow control is performed based on the inlet and outlet water temperature difference of the unit operating at rated power, thereby improving the accuracy of the water flow in the water system.

[0063] In some of these embodiments, the unit includes multiple sub-units, and each sub-unit includes multiple sub-unit modules.

[0064] For example, Figure 3 This is a schematic diagram of a water system structure provided in an embodiment of this application, such as... Figure 3 The water system shown includes three sub-units, and each sub-unit includes three sub-unit modules.

[0065] The three sub-units are Unit A, Unit B, and Unit C, corresponding to Figure 3The labels are: Unit A is 31, Unit B is 32, and Unit C is 33. Furthermore, each sub-unit includes three sub-unit modules, specifically, as follows: Figure 3 As shown, Unit A includes three sub-unit modules: sub-unit module 311, sub-unit module 312, and sub-unit module 313; Unit B includes three sub-unit modules: sub-unit module 321, sub-unit module 322, and sub-unit module 323; and Unit C includes three sub-unit modules: sub-unit module 331, sub-unit module 332, and sub-unit module 333.

[0066] also, Figure 3 The water system shown also includes unit A controller 34, unit B controller 35, unit C controller 36, system controller 37, and water pump 38. The system controller 37 can communicate with each unit controller to exchange data.

[0067] Furthermore, determining the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, outlet water temperature, and operating energy level can include the following steps:

[0068] Step 1: Determine the inlet and outlet water temperatures for each sub-unit module.

[0069] For example, the total inlet water temperature of the outlet water system is determined to be Tr by the system controller 37, and the inlet water temperatures of unit A, unit B and unit C are TAr, TBr and TCr respectively. Since the water flow temperature into each sub-unit module is the same as the inlet water temperature of the corresponding sub-unit, the inlet water temperature of sub-unit module 311, sub-unit module 312 and sub-unit module 313 is TAr, the inlet water temperature of sub-unit module 321, sub-unit module 322 and sub-unit module 323 is TBr, and the inlet water temperature of sub-unit module 331, sub-unit module 332 and sub-unit module 333 is TCr.

[0070] As another example, if the total inlet water temperature of the water system is the same as the inlet water temperature of each branch pipe, then the inlet water temperature of each sub-unit module is Tr, that is, Tr = TAr = TBr = TCr.

[0071] Furthermore, the unit A controller 34 determines the outlet water temperature of sub-unit module 311 as TA1, the outlet water temperature of sub-unit module 312 as TA2, and the outlet water temperature of sub-unit module 313 as TA3; the unit B controller 35 determines the outlet water temperature of sub-unit module 321 as TB1, the outlet water temperature of sub-unit module 322 as TB2, and the outlet water temperature of sub-unit module 323 as TB3; and the unit C controller 36 determines the outlet water temperature of sub-unit module 331 as TC1, the outlet water temperature of sub-unit module 332 as TC2, and the outlet water temperature of sub-unit module 333 as TC3.

[0072] Step 2: Determine the inlet and outlet water temperature difference for each sub-unit module based on the inlet and outlet water temperatures.

[0073] For example, the inlet and outlet water temperature difference of sub-unit module 311 is TAd1 = TAr - TA1; the inlet and outlet water temperature difference of sub-unit module 312 is TAd2 = TAr - TA2; and the inlet and outlet water temperature difference of sub-unit module 313 is TAd3 = TAr - TA3.

[0074] The inlet and outlet water temperature difference of sub-unit module 321 is TBd1 = TBr - TB1; the inlet and outlet water temperature difference of sub-unit module 322 is TBd2 = TBr - TB2; the inlet and outlet water temperature difference of sub-unit module 323 is TBd3 = TBr - TB3.

[0075] The inlet and outlet water temperature difference of sub-unit module 331 is TCd1 = TCr - TC1; the inlet and outlet water temperature difference of sub-unit module 332 is TCd2 = TCr - TC2; the inlet and outlet water temperature difference of sub-unit module 333 is TCd3 = TCr - TC3.

[0076] Step 3: Determine the operating level of each sub-unit module.

[0077] For example, such as Figure 3 As shown, the operating energy level corresponding to sub-unit module 311 is 0%, the operating energy level corresponding to sub-unit module 312 is 50%, and the operating energy level corresponding to sub-unit module 313 is 100%; the operating energy level corresponding to sub-unit module 321 is 100%, the operating energy level corresponding to sub-unit module 322 is 0%, and the operating energy level corresponding to sub-unit module 323 is 50%; the operating energy level corresponding to sub-unit module 331 is 100%, the operating energy level corresponding to sub-unit module 332 is 100%, and the operating energy level corresponding to sub-unit module 333 is 100%.

[0078] Step 4: Based on the preset operating energy level threshold, determine N sub-unit modules from multiple sub-unit modules, where N is a positive integer.

[0079] For example, N sub-unit modules with operating energy levels greater than or equal to a preset operating energy level threshold are determined from a plurality of sub-unit modules.

[0080] It should be noted that the preset operating energy level threshold can be determined based on the average operating energy level of multiple sub-unit modules during the actual operation of the water system, or it can be set by the water system. The preset operating energy level threshold can be 0, 10%, or other operating energy levels, and there are no restrictions here.

[0081] For example, such as Figure 3 As shown, based on the operating capacity level of the sub-unit module, from Figure 3 N sub-unit modules were determined from the 9 sub-unit modules.

[0082] As an example, N sub-unit modules with non-zero operating energy levels are identified from multiple sub-unit modules. Figure 3 In this system, there are seven sub-unit modules with a non-zero operating energy level: sub-unit module 312 (operating energy level 50%), sub-unit module 313 (operating energy level 100%), sub-unit module 321 (operating energy level 100%), sub-unit module 323 (operating energy level 50%), sub-unit module 331 (operating energy level 100%), sub-unit module 332 (operating energy level 100%), and sub-unit module 333 (operating energy level 100%).

[0083] As another example, N sub-unit modules with an operating capacity of 50% are identified from multiple sub-unit modules. Figure 3 In this system, the sub-unit module with an operating capacity of 50% includes two sub-unit modules: sub-unit module 312 and sub-unit module 323.

[0084] It should be noted that this application only takes the example of the sub-unit module having a non-zero operating energy level and an operating energy level of 50%, and selects N sub-unit modules from multiple sub-unit modules for illustration. In actual application, the N sub-unit modules may include an operating energy level of 100% or other operating energy levels. The appropriate settings can be made according to the actual situation, and no restrictions are imposed here.

[0085] Step 5: Determine the sum of the inlet and outlet water temperature differences of the N sub-unit modules, and the sum of the operating energy levels of the N sub-unit modules.

[0086] As an example, if the determined N sub-unit modules include 7 sub-unit modules with non-zero operating energy levels, then the sum of the inlet and outlet water temperature differences of the corresponding N sub-unit modules, Tds = TAd2 + TAd3 + TBd1 + TBd3 + TCd1 + TCd2 + TCd3, and the sum of the corresponding operating energy levels, Es = 50% + 100% + 100% + 50% + 100% + 100% + 100%.

[0087] As another example, if the determined N sub-unit modules include 2 sub-unit modules with an operating capacity of 50%, then the sum of the inlet and outlet water temperature differences of the corresponding N sub-unit modules, Tds = TAd2 + TBd3, and the sum of the corresponding operating capacity, Es = 50% + 50%.

[0088] Step 6: The ratio of the sum of the inlet and outlet water temperature differences of the N sub-unit modules to the sum of the operating energy levels of the N sub-unit modules is determined as the actual inlet and outlet water temperature difference.

[0089] For example, the actual temperature difference between the inlet and outlet water is Tdt = Tds / Es.

[0090] If the determined N sub-unit modules include 7 sub-unit modules with non-zero operating energy levels, then the actual inlet and outlet water temperature difference Tdt = Tds / Es = (TAd2 + TAd3 + TBd1 + TBd3 + TCd1 + TCd2 + TCd3) / (50% + 100% + 100% + 50% + 100% + 100% + 100%).

[0091] If the determined N sub-unit modules include 2 sub-unit modules with an operating capacity of 50%, then the actual inlet and outlet water temperature difference Tdt = Tds / Es = (TAd2 + TBd3) / (50% + 50%).

[0092] In the above implementation process, in a water system including multiple sub-unit modules, the inlet and outlet water temperature difference value and the corresponding operating energy level of each sub-unit module are determined, and N sub-unit modules are determined according to the operating energy level of each sub-unit module. Thus, the effective sub-unit modules are determined from the multiple sub-unit modules, and the ratio of the sum of the inlet and outlet water temperature differences of the effective sub-unit modules to the sum of the corresponding operating energy levels is determined as the actual inlet and outlet water temperature difference value of the water system. The inlet and outlet water temperature difference value corresponding to each sub-unit module of the water system when operating at rated power is determined from this.

[0093] In some specific embodiments, determining the inlet water temperature of each sub-unit module may include the following steps:

[0094] Step 1: Obtain the inlet water temperature of each sub-unit.

[0095] Step 2: Determine the average inlet water temperature of all sub-units as the inlet water temperature of each sub-unit module.

[0096] For example, Figure 3 In the above, the inlet water temperatures of units A, B, and C are TAr, TBr, and TCr, respectively. Therefore, the inlet water temperature of each sub-unit module is (TAr+TBr+TCr) / 3.

[0097] In a water system, the inlet water temperature of each branch pipe should be the same when it enters from the same main pipe. However, during the process of water flowing from the main pipe into each branch pipe, a small amount of heat may be lost, resulting in different inlet water temperatures for each branch pipe. Therefore, in the above implementation process, the average inlet water temperature of all sub-units is determined as the inlet water temperature of each sub-unit module, which can effectively determine the inlet water temperature of each sub-unit module.

[0098] In some of these embodiments, N sub-unit modules are determined from a plurality of sub-unit modules based on a preset operating energy level threshold, including determining N sub-unit modules whose operating energy level is not zero from the plurality of sub-unit modules.

[0099] In the above implementation process, N sub-unit modules with non-zero operating energy levels are identified from multiple sub-unit modules, thereby identifying the sub-unit modules with heat exchange in the water outlet system and excluding sub-unit modules that do not perform heat exchange. This further facilitates the determination of the inlet and outlet water temperature difference after the water system has undergone heat exchange, reducing the error in determining the inlet and outlet water temperature difference.

[0100] In some of these embodiments, N sub-unit modules are determined from a plurality of sub-unit modules based on a preset operating energy level threshold, including determining N sub-unit modules with an operating energy level of 100% from the plurality of sub-unit modules.

[0101] For example, N sub-unit modules with an operating capacity of 100% are determined from multiple sub-unit modules. Figure 3 The sub-unit module with a 100% operating capacity includes five sub-unit modules: sub-unit module 313, sub-unit module 321, sub-unit module 331, sub-unit module 332, and sub-unit module 333.

[0102] Furthermore, the actual inlet and outlet water temperature difference of the water system is Tdt = Tds / Es = (TAd3 + TBd1 + TCd1 + TCd2 + TCd3) / (100% + 100% + 100% + 100% + 100%).

[0103] In the above implementation process, the sub-unit module operating at rated power is determined from multiple sub-unit modules, and the actual inlet and outlet water temperature difference of the sub-unit module operating at rated power is determined. This further facilitates the adjustment of the water system flow rate based on the actual inlet and outlet water temperature difference, thereby improving the accuracy of water system flow rate control.

[0104] In some embodiments, controlling the water flow rate of the water system based on the actual inlet and outlet water temperature difference may include the following steps:

[0105] Step 1: Determine the preset inlet and outlet water temperature difference.

[0106] For example, the preset inlet and outlet water temperature difference value of the water system is obtained.

[0107] It should be noted that the preset inlet and outlet water temperature difference is usually determined according to national standards when the water system of central air conditioning or underfloor heating equipment is designed, and is usually 5℃. In actual application, it can be adjusted accordingly based on the ambient temperature of the region.

[0108] Step 2: Adjust the water flow rate of the water system according to the deviation between the actual inlet and outlet water temperature difference and the preset inlet and outlet water temperature difference.

[0109] For example, according to the heat exchange principle, under the condition of a determined target load, the smaller the temperature difference between the inlet and outlet water of the water system, the larger the required water flow rate; conversely, the larger the temperature difference between the inlet and outlet water, the smaller the required water flow rate. Therefore, when the user's required temperature is determined, if the actual inlet and outlet water temperature difference is greater than the preset inlet and outlet water temperature difference, the system controller 37 controls the water pump 38 to increase the water flow rate of the water system in order to reduce the actual inlet and outlet water temperature difference and make it equal to the preset inlet and outlet water temperature difference; if the actual inlet and outlet water temperature difference is less than the preset inlet and outlet water temperature difference, the system controller 37 controls the water pump 38 to reduce the water flow rate of the water system in order to increase the actual inlet and outlet water temperature difference and make it equal to the preset inlet and outlet water temperature difference, thereby meeting the user's temperature requirements.

[0110] Since the operating level of the generator unit affects the inlet and outlet water temperature difference during actual operation of the water system, the actual inlet and outlet water temperature difference of the water system is determined based on the inlet and outlet water temperatures and the operating level of the generator unit in the water system during the above implementation process. This allows the determination of the actual inlet and outlet water temperature difference to more effectively reflect the actual operating conditions of the water system. Furthermore, the water flow rate of the water system is controlled based on the actual inlet and outlet water temperature difference, thereby improving the accuracy of water flow rate control in the water system.

[0111] It should be noted that the steps shown in the above process or in the flowchart of the accompanying figures can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0112] This embodiment also provides a water system flow control device, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. The terms "module," "unit," "subunit," etc., used below refer to combinations of software and / or hardware that perform a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0113] Figure 4 This is a structural block diagram of a water system flow control device provided in an embodiment of this application, as shown below. Figure 4 As shown, the device includes:

[0114] The acquisition module 401 is used to acquire the inlet water temperature, outlet water temperature and operating energy level of the unit, wherein the operating energy level is determined based on the actual operating power and rated power of the unit.

[0115] The determination module 402 is used to determine the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, outlet water temperature and operating energy level.

[0116] The control module 403 is used to control the water flow rate of the water system based on the actual temperature difference between the inlet and outlet water.

[0117] In some embodiments, the determining module 402 is specifically used for:

[0118] Determine the temperature difference between the inlet water temperature and the outlet water temperature;

[0119] The ratio of temperature difference to operating energy level is determined as the actual inlet and outlet water temperature difference.

[0120] In some embodiments, the unit includes multiple sub-units, each sub-unit includes multiple sub-unit modules, and the determining module 402 is specifically used for:

[0121] Determine the inlet and outlet water temperatures for each sub-unit module;

[0122] The inlet and outlet water temperature difference of each sub-unit module is determined based on the inlet and outlet water temperatures of each sub-unit module.

[0123] Determine the operating energy level of each sub-unit module;

[0124] Based on the preset operating energy level threshold, N sub-unit modules are determined from multiple sub-unit modules, where N is a positive integer;

[0125] Determine the sum of the inlet and outlet water temperature differences of the N sub-unit modules, and the sum of the operating energy levels of the N sub-unit modules;

[0126] The actual inlet and outlet water temperature difference is determined by the ratio of the sum of the inlet and outlet water temperature differences of the N sub-unit modules to the sum of the operating energy levels of the N sub-unit modules.

[0127] In some embodiments, the determining module 402 is specifically used for:

[0128] Obtain the inlet water temperature of each sub-unit;

[0129] The average inlet water temperature of all sub-units is used as the inlet water temperature of each sub-unit module.

[0130] In some embodiments, the determining module 402 is specifically used to: determine N sub-unit modules from a plurality of sub-unit modules whose operating energy level is not zero.

[0131] In some embodiments, the determining module 402 is specifically used to: determine N sub-unit modules with an operating energy level of 100% from a plurality of sub-unit modules.

[0132] In some embodiments, the control module 403 is specifically used for:

[0133] Determine the preset inlet and outlet water temperature difference;

[0134] Adjust the water flow rate of the water system according to the deviation between the actual inlet and outlet water temperature difference and the preset inlet and outlet water temperature difference.

[0135] It should be noted that the above modules can be functional modules or program modules, and can be implemented through software or hardware. For modules implemented through hardware, the above modules can reside in the same processor; or the above modules can be located in different processors in any combination.

[0136] This embodiment also provides an electronic device including a memory and a processor, the memory storing a computer program and the processor being configured to run the computer program to perform the steps in any of the above method embodiments.

[0137] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0138] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0139] S1 obtains the inlet water temperature, outlet water temperature, and operating level of the unit. The operating level is determined based on the actual operating power and rated power of the unit.

[0140] S2, determine the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, outlet water temperature and operating energy level;

[0141] S3 controls the water flow rate of the water system based on the actual temperature difference between the inlet and outlet water.

[0142] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated in this embodiment.

[0143] Furthermore, in conjunction with the water system flow control method provided in the above embodiments, this embodiment can also provide a storage medium for implementation. The storage medium stores a computer program; when executed by a processor, the computer program implements any of the water system flow control methods described in the above embodiments.

[0144] It should be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. All other embodiments derived by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0145] Obviously, the accompanying drawings are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar situations based on these drawings without any creative effort. Furthermore, it is understood that although the work done in this development process may be complex and lengthy, for those skilled in the art, certain design, manufacturing, or production modifications made based on the technical content disclosed in this application are merely conventional technical means and should not be considered as insufficient disclosure of this application.

[0146] The term "embodiment" in this application refers to a specific feature, structure, or characteristic described in connection with an embodiment that may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily imply the same embodiment, nor does it imply that it is mutually exclusive with or independent of other embodiments. It will be clearly or implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0147] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of patent protection. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A method for controlling water flow in a water system, characterized in that, The water system includes a generating unit, the generating unit includes multiple sub-generator units, and each sub-generator unit includes multiple sub-generator unit modules. The water flow control method of the water system includes: The inlet water temperature, outlet water temperature, and operating energy level of the unit are obtained, wherein the operating energy level is determined based on the actual operating power and rated power of the unit; The actual inlet and outlet water temperature difference of the water system is determined based on the inlet water temperature, the outlet water temperature, and the operating energy level. This determination includes: determining the inlet and outlet water temperatures of each sub-unit module; determining the inlet and outlet water temperature difference of each sub-unit module based on its inlet and outlet water temperatures; determining the operating energy level of each sub-unit module; determining N sub-unit modules from a plurality of sub-unit modules based on a preset operating energy level threshold, where N is a positive integer; determining the sum of the inlet and outlet water temperature differences of the N sub-unit modules and the sum of the operating energy levels of the N sub-unit modules; and determining the actual inlet and outlet water temperature difference as the ratio of the sum of the inlet and outlet water temperature differences of the N sub-unit modules to the sum of the operating energy levels of the N sub-unit modules. The water flow rate of the water system is controlled based on the actual temperature difference between the inlet and outlet water.

2. The water system flow control method according to claim 1, characterized in that, Determining the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, the outlet water temperature, and the operating energy level includes: Determine the temperature difference between the inlet water temperature and the outlet water temperature; The ratio of the temperature difference to the operating energy level is determined as the actual inlet and outlet water temperature difference value.

3. The water system flow control method according to claim 1, characterized in that, Determining the inlet water temperature of each of the sub-unit modules includes: Obtain the inlet water temperature of each of the aforementioned sub-units; The average inlet water temperature of all the sub-units is determined as the inlet water temperature of each sub-unit module.

4. The water system flow control method according to claim 1, characterized in that, The step of determining N sub-unit modules from a plurality of sub-unit modules according to a preset operating energy level threshold includes determining N sub-unit modules whose operating energy level is not zero from the plurality of sub-unit modules.

5. The water system flow control method according to claim 1, characterized in that, The step of determining N sub-unit modules from a plurality of sub-unit modules according to a preset operating energy level threshold includes determining N sub-unit modules with an operating energy level of 100% from the plurality of sub-unit modules.

6. The water system flow control method according to any one of claims 1-5, characterized in that, The step of controlling the water flow rate of the water system based on the actual inlet and outlet water temperature difference includes: Determine the preset inlet and outlet water temperature difference; The water flow rate of the water system is adjusted according to the deviation between the actual inlet and outlet water temperature difference and the preset inlet and outlet water temperature difference.

7. A water system flow control device, characterized in that, The water system includes a unit, the unit includes multiple sub-units, and each sub-unit includes multiple sub-unit modules, including: The acquisition module is used to acquire the inlet water temperature, outlet water temperature, and operating energy level of the unit, wherein the operating energy level is determined based on the actual operating power and rated power of the unit; A determining module is used to determine the actual inlet and outlet water temperature difference of the water system based on the inlet water temperature, the outlet water temperature, and the operating energy level. The determination of the actual inlet and outlet water temperature difference based on the inlet water temperature, the outlet water temperature, and the operating energy level includes: determining the inlet water temperature and outlet water temperature of each sub-unit module; determining the inlet and outlet water temperature difference of each sub-unit module based on the inlet and outlet water temperatures of each sub-unit module; determining the operating energy level of each sub-unit module; determining N sub-unit modules from the plurality of sub-unit modules based on a preset operating energy level threshold, where N is a positive integer; determining the sum of the inlet and outlet water temperature differences of the N sub-unit modules and the sum of the operating energy levels of the N sub-unit modules; and determining the actual inlet and outlet water temperature difference as the ratio of the sum of the inlet and outlet water temperature differences of the N sub-unit modules to the sum of the operating energy levels of the N sub-unit modules. The control module is used to control the water flow rate of the water system based on the actual temperature difference between the inlet and outlet water.

8. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to run the computer program to perform the water system flow control method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the water system flow control method according to any one of claims 1 to 6.

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