A method and device for load control of an air conditioning unit

Abstract

This invention discloses a method and apparatus for controlling the load of an air conditioning unit. The method includes: during the operation of the air conditioning unit, detecting the supply water temperature of the air conditioning unit, the return water temperature of the air conditioning unit, and the water valve adjustment status within the building, wherein the air conditioning unit is used to regulate the temperature within the building; and controlling the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit, and the water valve adjustment status of each floor within the building. This invention enables the rapid and precise adjustment of the air conditioning unit's compressor load based on a short-term prediction of user cooling demand, improving user comfort and solving the problem of significant delay and error in determining load output based on supply and return water temperatures in existing large air conditioning units.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology, and more specifically, to a method and apparatus for controlling the load of an air conditioning unit. Background Technology

[0002] In daily life, when using large air conditioning units, it's common to observe that their adjustment process is slow. The process of adapting to cooling demand through their own response is lengthy, often requiring human intervention for rapid cooling. In engineering practice, the user's desired temperature and the unit's adjusted temperature are often asynchronous, exhibiting a lag or delay. Because water systems in buildings have long and extensive piping layouts, with significant distances for supply and return water, it takes at least 10 minutes for the ambient temperature to exchange heat with the supply water before returning to the unit. This delay also involves heat loss, resulting in substantial delays and errors in the unit's load output determination based on supply and return water temperatures.

[0003] There is currently no effective solution to the problem that large air conditioning units in the existing technology have significant delays and errors in judging load output based on supply and return water temperatures. Summary of the Invention

[0004] This invention provides a method and apparatus for controlling the load of an air conditioning unit, in order to solve the problem of large delays and errors in judging the load output of large air conditioning units based on the supply and return water temperatures in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention provides a method for load control of an air conditioning unit, wherein the method includes: During the operation of the air conditioning unit, the supply water temperature of the air conditioning unit, the return water temperature of the air conditioning unit, and the water valve adjustment status in the building are monitored. The air conditioning unit is used to regulate the temperature inside the building. The load of the air conditioning unit is controlled based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit, as well as the water valve adjustment status of each floor in the building.

[0006] Furthermore, controlling the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit, and the water valve adjustment status of each floor in the building, includes: If the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit exceeds a first temperature threshold, the compressor of the air conditioning unit is controlled to load. If the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit is not detected to exceed the first temperature threshold, the compressor of the air conditioning unit is controlled to unload.

[0007] Furthermore, controlling the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit, and the water valve adjustment status of each floor in the building, includes: If it is detected that the water valves on floors exceeding the first value in the building are all in the fully open state, then the compressor of the air conditioning unit is controlled to load. If it is detected that the water valves on floors exceeding the second value in the building are all in the partially closed state, then the compressor of the air conditioning unit is controlled to unload.

[0008] Furthermore, controlling the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit, and the water valve adjustment status of each floor in the building, includes: If the temperature control demand of the building is detected to be lower than the third value, and the temperature difference between the return water temperature of the air conditioning unit and the supply water temperature of the air conditioning unit does not exceed the first temperature threshold, then the air conditioning unit is controlled to standby mode, wherein the temperature control demand is equal to the ratio of the number of rooms in the building that need temperature regulation to the total number of rooms. If the temperature control demand of the building is detected to be higher than the third value and lower than the fourth value, the compressor of the air conditioning unit will be controlled to run for a target time and then put into standby mode.

[0009] Furthermore, the method also includes: The system detects the return water temperature of the target floor, the supply water temperature of the target floor, and the rate of change of room temperature on the target floor, wherein the target floor is one of the floors in the building. The water valve of the target floor is adjusted based on the temperature difference between the return water temperature and the supply water temperature of the target floor, as well as the rate of change of room temperature on the target floor.

[0010] Further, the step of controlling the water valve adjustment of the target floor based on the temperature difference between the return water temperature and the supply water temperature of the target floor, and the rate of change of room temperature on the target floor, includes: If the temperature difference between the return water temperature of the target floor and the supply water temperature of the target floor exceeds the second temperature threshold, the water valve of the target floor will be opened wider. If the temperature difference between the return water temperature of the target floor and the supply water temperature of the target floor does not exceed the second temperature threshold, the water valve of the target floor is controlled to be closed slightly.

[0011] Further, the step of controlling the water valve adjustment of the target floor based on the temperature difference between the return water temperature and the supply water temperature of the target floor, and the rate of change of room temperature on the target floor, includes: If the rate of change of room temperature on the target floor is detected to exceed the third temperature threshold, the water valve on the target floor will be opened wider. If the rate of change of room temperature on the target floor is detected to be lower than the fourth temperature threshold, then the number of rooms on the target floor that need temperature adjustment is detected; if the number of rooms on the target floor that need temperature adjustment is lower than the fifth value, and the temperature difference between the return water temperature of the target floor and the average temperature of the rooms with the fifth value is lower than the fifth temperature threshold, then the water valve of the target floor is controlled to be closed, wherein the fourth temperature threshold is lower than the third temperature threshold. If the detected room temperature change rate on the target floor is not lower than the fourth temperature threshold and does not exceed the third temperature threshold, then the number of rooms on the target floor that require temperature adjustment is detected; if the number of rooms on the target floor that require temperature adjustment exceeds the sixth value, and the temperature of all rooms on the target floor that require temperature adjustment exceeds the seventh value is greater than the target average temperature, then the water valve on the target floor is opened wider, wherein the target average temperature is the average temperature of the rooms on the target floor that require temperature adjustment; if the number of rooms on the target floor that require temperature adjustment does not exceed the sixth value, then the water valve of the corresponding room on the target floor is adjusted.

[0012] The present invention also provides an air conditioning unit load control device, wherein the device comprises: The first detection unit is used to detect the supply water temperature of the air conditioning unit, the return water temperature of the air conditioning unit, and the water valve adjustment status in the building during the operation of the air conditioning unit, wherein the air conditioning unit is used to adjust the temperature in the building; The first control unit is used to control the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit and the water valve adjustment status of each floor in the building.

[0013] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the air conditioning unit load control method as described above.

[0014] The present invention also provides an electronic device, comprising: one or more processors; and a storage device for storing one or more programs, which, when executed by the one or more processors, cause the one or more processors to implement the air conditioning unit load control method as described above.

[0015] By applying the technical solution of this invention, during the operation of the air conditioning unit, by detecting the supply water temperature of the air conditioning unit, the return water temperature of the air conditioning unit, and the water valve adjustment status within the building, and based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit, as well as the water valve adjustment status of each floor within the building, the load of the air conditioning unit can be controlled. This enables the adjustment of the compressor load of the air conditioning unit to be made in a short time based on the user's cooling demand, with precise and rapid adjustment, which can improve the user's comfort experience. This solves the problem of large delay and error in judging the load output of large air conditioning units based on the supply and return water temperatures in the prior art. Attached Figure Description

[0016] Figure 1 This is a flowchart of air conditioning unit load control according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the air conditioning unit and building deployment structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram showing the sensor deployment locations on each floor of a building according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a temperature regulation control process for a certain floor according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the load regulation control process of an air conditioning unit according to an embodiment of the present invention; Figure 6 This is a structural block diagram of an air conditioning unit load control device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the hardware structure of a computer device according to an embodiment of this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0018] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0019] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0020] It should be understood that the terms "first," "second," "third," etc., used in the embodiments of the present invention are merely to distinguish similar objects and do not represent a specific ordering of objects.

[0021] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0022] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0023] The optional embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] Example 1 Figure 1 This is a flowchart of the air conditioning unit load control according to an embodiment of the present invention, such as... Figure 1 As shown, the method includes the following steps: Step S101: During the operation of the air conditioning unit, the supply water temperature of the air conditioning unit, the return water temperature of the air conditioning unit, and the water valve adjustment status in the building are detected, wherein the air conditioning unit is used to regulate the temperature in the building; Step S102: Control the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit and the water valve adjustment status of each floor in the building.

[0025] In the Figure 1 Before detailing the execution process, let's first describe the air conditioning unit and the building requiring temperature control: Figure 2 This is a schematic diagram of the air conditioning unit and building deployment structure according to an embodiment of the present invention, such as... Figure 2 As shown, the air conditioning unit may include: a compressor 1, a condenser 2, an electronic expansion valve 3, and an evaporator 4. The air conditioning unit is also equipped with a supply water temperature sensor and a return water temperature sensor, used to detect the supply water temperature and return water temperature of the air conditioning unit, respectively. The building may include multiple floors, each equipped with a water valve 5. Each floor includes one or more rooms, each equipped with a water valve 6. Figure 3 This is a schematic diagram showing the sensor deployment locations on each floor of a building according to an embodiment of the present invention, such as... Figure 3 As shown, each floor can be equipped with a supply water temperature sensor and a return water temperature sensor to detect the supply water temperature and return water temperature of that floor, respectively. Each room on each floor can be equipped with a corresponding room temperature sensor to detect the temperature of that room.

[0026] As an optional embodiment, this application can regulate and control the temperature of a specific floor within a building (i.e., the target floor hereinafter), including: The return water temperature T2' of the target floor, the supply water temperature T1' of the target floor, and the room temperature change rate ΔT on the target floor are detected, wherein the target floor is one of the floors in the building; The water valve of the target floor is adjusted based on the temperature difference between the return water temperature and the supply water temperature of the target floor, as well as the rate of change of room temperature on the target floor.

[0027] Temperature regulation and control on a specific floor of a building specifically includes: controlling the water valve adjustment on that floor based on the room's heat exchange capacity; and controlling the water valve adjustment on that floor based on the room's temperature change rate.

[0028] This application embodiment detects the temperature difference between the return water temperature and the supply water temperature of the target floor, as well as the room temperature change rate, which can quickly and accurately monitor the room's heat exchange demand. By adjusting the floor water valve, the temperature of that floor can be precisely controlled, thereby improving the user's comfort experience.

[0029] Combination Figure 4 As shown, controlling the water valve adjustment for this floor based on the room's heat exchange capacity specifically includes: If the temperature difference between the return water temperature and the supply water temperature of the target floor exceeds the second temperature threshold Tm, i.e., T2'-T1'>Tm, it indicates that the room heat exchange is large and the demand is increasing, then the water valve of the target floor is opened wider. If the temperature difference between the return water temperature and the supply water temperature of the target floor does not exceed the second temperature threshold, i.e., T2'-T1'≤Tm, it indicates that the heat exchange in the room is small and the demand is reduced. In this case, the water valve of the target floor is controlled to be closed.

[0030] Combination Figure 4 As shown, controlling the water valve adjustment for this floor based on the room temperature change rate specifically includes: If the room temperature change rate ΔT on the target floor is detected to exceed the third temperature threshold A (A is the preset temperature limit value for larger units), that is, ΔT>A, it indicates that the temperature change rate is large, and the water valve on the target floor is opened wider. If the detected room temperature change rate ΔT on the target floor is lower than the fourth temperature threshold B (B is a preset temperature limit for a smaller unit), i.e., ΔT < B, then it is necessary to further detect the number of rooms x on the target floor that require temperature adjustment. If the number of rooms x on the target floor that require temperature adjustment is lower than the fifth value H (H is a preset number of fewer rooms), i.e., x < H, and the temperature difference between the return water temperature T2' of the target floor and the average temperature Th of the number of rooms equal to the fifth value (Th is the average temperature of the fewer rooms) is lower than the fifth temperature threshold P (P is a preset temperature measurement value), i.e., 0 < |T2' - Th| < P, it indicates that the temperature change rate is small, and the water valve on the target floor is controlled to be closed slightly. In this case, the fourth temperature threshold B is lower than the third temperature threshold A; otherwise, no changes are made.

[0031] If the detected room temperature change rate ΔT on the target floor is not lower than the fourth temperature threshold B and does not exceed the third temperature threshold A, i.e., B≤ΔT≤A, then it is necessary to further detect the number x of rooms on the target floor that need temperature adjustment. If the number x of rooms on the target floor that need temperature adjustment exceeds the sixth value θ (θ is a preset number of rooms), i.e., x>θ, then the temperatures t1, t2, t3……tn of each room are detected, and the temperatures of the rooms on the target floor that need temperature adjustment exceeding the seventh value are all greater than the target temperature average Tx, for example, 80% of them (the seventh value is 80%) are greater than Tx, then the water valve on the target floor is opened wider, where the target temperature average Tx is the average temperature of the rooms on the target floor that need temperature adjustment; if the number x of rooms on the target floor that need temperature adjustment does not exceed the sixth value θ, i.e., x≤θ, then the water valves of the corresponding individual rooms on the target floor are adjusted to achieve independent temperature conditions.

[0032] It should be noted that, for water valve regulation on a certain floor, the priority of regulating the water valve on that floor based on the room's heat exchange capacity is higher than that of regulating the water valve on that floor based on the room's temperature change rate.

[0033] As an optional embodiment, this application can control the load of the air conditioning unit based on the temperature difference between the return water temperature T1 and the supply water temperature T2 of the air conditioning unit, as well as the water valve adjustment status of each floor in the building, combined with... Figure 5 As shown, it specifically includes: If the temperature difference between the return water temperature T2 and the supply water temperature T1 of the air conditioning unit exceeds the first temperature threshold Ta, i.e., T2-T1>Ta, it indicates that the building has a large heat exchange capacity and the demand is increasing, so the compressor of the air conditioning unit is controlled to load. If the temperature difference between the return water temperature T2 and the supply water temperature T1 of the air conditioning unit is not detected to exceed the first temperature threshold Ta, i.e., T2-T1≤Ta, it indicates that the heat exchange of the building is small and the demand is reduced, then the compressor of the air conditioning unit is controlled to unload.

[0034] Furthermore, combined Figure 5 As shown, if it is detected that the water valves on more than a first value (e.g., 60%) of the floors in the building are all in the open state, the compressor of the air conditioning unit is controlled to be loaded. If it is detected that the water valves on more than a second value (e.g., 40%) of the floors in the building are all in a partially closed state, then the compressor of the air conditioning unit is controlled to unload. If the temperature control demand of the building is detected to be lower than the third value (e.g., 5%), and the temperature difference between the return water temperature T2 and the supply water temperature T1 of the air conditioning unit does not exceed the first temperature threshold Ta, i.e., T2-T1≤Ta, then the air conditioning unit is controlled to standby mode, wherein the temperature control demand is equal to the ratio of the number of rooms in the building that need temperature regulation to the total number of rooms. If the detected temperature control demand of the building is higher than the third value (e.g., 5%) and lower than the fourth value (e.g., 15%), then the compressor of the air conditioning unit is controlled to run for a target time. Figure 5 The unit will be in standby mode after the time shown (f).

[0035] This invention provides a novel water temperature control method that can quickly adjust the water demand of corresponding floors based on changes in room temperature and water temperature feedback, while simultaneously controlling the compressor load adjustment according to the water volume adjustment feedback mechanism. This novel water temperature control technology enables the unit to adjust the compressor load according to the user's cooling demand in a short time, providing precise and rapid adjustment and improving user comfort.

[0036] Example 2 Corresponding to Figure 1The air conditioning unit load control method described herein is illustrated in this embodiment, which provides an air conditioning unit load control device, such as... Figure 6 This is a structural block diagram of an air conditioning unit load control device according to an embodiment of the present invention. The device includes: The first detection unit 61 is used to detect the supply water temperature of the air conditioning unit, the return water temperature of the air conditioning unit, and the water valve adjustment status in the building during the operation of the air conditioning unit, wherein the air conditioning unit is used to adjust the temperature in the building; The first control unit 62 is used to control the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit and the water valve adjustment status of each floor in the building.

[0037] Furthermore, the first control unit 62 includes: The first control module is used to control the compressor of the air conditioning unit to load if the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit exceeds a first temperature threshold. The second control module is used to control the compressor of the air conditioning unit to unload if the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit does not exceed the first temperature threshold.

[0038] Furthermore, the first control unit 62 includes: The third control module is used to control the compressor of the air conditioning unit to load if it is detected that the water valves of floors in the building exceeding the first value are all in the open state. The fourth control module is used to control the compressor of the air conditioning unit to unload if it is detected that the water valves of floors in the building exceeding the second value are all in the closed state.

[0039] Furthermore, the first control unit 62 includes: The fifth control module is used to control the air conditioning unit to standby if it is detected that the temperature control demand of the building is lower than the third value and the temperature difference between the return water temperature of the air conditioning unit and the supply water temperature of the air conditioning unit does not exceed the first temperature threshold. The temperature control demand is equal to the ratio of the number of rooms in the building that need temperature adjustment to the total number of rooms. The sixth control module is used to control the compressor of the air conditioning unit to run for a target time and then go into standby mode if the temperature control demand of the building is detected to be higher than the third value and lower than the fourth value.

[0040] Furthermore, the device also includes: The second detection unit is used to detect the return water temperature of the target floor, the supply water temperature of the target floor, and the rate of change of room temperature on the target floor, wherein the target floor is one of the floors in the building; The second control unit is used to control the water valve adjustment of the target floor based on the temperature difference between the return water temperature of the target floor and the supply water temperature of the target floor, as well as the rate of change of room temperature on the target floor.

[0041] Furthermore, the second control unit includes: The seventh control module is used to control the water valve of the target floor to open wider if the temperature difference between the return water temperature of the target floor and the supply water temperature of the target floor exceeds a second temperature threshold. The eighth control module is used to control the water valve of the target floor to close slightly if the temperature difference between the return water temperature of the target floor and the supply water temperature of the target floor does not exceed the second temperature threshold.

[0042] Furthermore, the second control unit includes: The ninth control module is used to control the water valve on the target floor to open wider if the rate of change of room temperature on the target floor exceeds the third temperature threshold. The tenth control module is used to detect the number of rooms on the target floor whose temperature needs to be adjusted if the rate of change of room temperature on the target floor is lower than the fourth temperature threshold; if the number of rooms on the target floor whose temperature needs to be adjusted is lower than the fifth value, and the temperature difference between the return water temperature of the target floor and the average temperature of the rooms with the fifth value is lower than the fifth temperature threshold, then control the water valve of the target floor to be closed, wherein the fourth temperature threshold is lower than the third temperature threshold. The eleventh control module is used to detect the number of rooms on the target floor whose temperature needs to be adjusted if the detected room temperature change rate on the target floor is not lower than the fourth temperature threshold and does not exceed the third temperature threshold; if the number of rooms on the target floor whose temperature needs to be adjusted exceeds the sixth value, and the temperature of all rooms on the target floor whose temperature needs to be adjusted exceeds the seventh value is greater than the target average temperature, then the water valve on the target floor is opened wider, wherein the target average temperature is the average temperature of the rooms on the target floor whose temperature needs to be adjusted; if the number of rooms on the target floor whose temperature needs to be adjusted does not exceed the sixth value, then the water valve of the corresponding room on the target floor is adjusted.

[0043] 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.

[0044] Example 3 An embodiment provides a computer device. The air conditioning unit load control method described in this application embodiment can be implemented using a computer device. Figure 7 This is a schematic diagram of the hardware structure of a computer device according to an embodiment of this application.

[0045] The computer device may include a processor 71 and a memory 72 storing computer program instructions.

[0046] Specifically, the processor 71 may include a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement the embodiments of this application.

[0047] The memory 72 may include a mass storage device for data or instructions. For example, and not limitingly, the memory 72 may include a hard disk drive (HDD), a floppy disk drive, a solid-state drive (SSD), flash memory, an optical disk drive, a magneto-optical disk drive, magnetic tape, or a Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 72 may include removable or non-removable (or fixed) media. Where appropriate, the memory 72 may be internal or external to a data processing device. In a particular embodiment, the memory 72 is non-volatile memory. In a particular embodiment, the memory 72 includes read-only memory (ROM) and random access memory (RAM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), an electrically alterable read-only memory (EAROM), or flash memory, or a combination of two or more of these. Where appropriate, the RAM can be Static Random-Access Memory (SRAM) or Dynamic Random-Access Memory (DRAM). DRAM can be Fast Page Mode Dynamic Random-Access Memory (FPMDRAM), Extended Data Out Dynamic Random-Access Memory (EDODRAM), Synchronous Dynamic Random-Access Memory (SDRAM), etc.

[0048] The memory 72 can be used to store or cache various data files that need to be processed and / or communicated, as well as possible computer program instructions executed by the processor 71.

[0049] The processor 71 reads and executes computer program instructions stored in the memory 72 to implement any of the air conditioning unit load control methods in the above embodiments.

[0050] In some embodiments, the computer device may further include a communication interface 73 and a bus 70. For example, Figure 7 As shown, the processor 71, memory 72, and communication interface 73 are connected through bus 70 and complete communication with each other.

[0051] The communication interface 73 is used to enable communication between the various modules, devices, units, and / or equipment in the embodiments of this application. The communication interface 73 can also enable data communication with other components such as external devices, image / data acquisition devices, databases, external storage, and image / data processing workstations.

[0052] Bus 70 includes hardware, software, or both, that couples components of a computer device together. Bus 70 includes, but is not limited to, at least one of the following: data bus, address bus, control bus, expansion bus, and local bus. For example, and not as a limitation, bus 70 may include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hyper Transport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local Bus (VLB) bus, or other suitable buses, or a combination of two or more of these. Where appropriate, bus 70 may include one or more buses. Although specific buses are described and illustrated in the embodiments of this application, this application considers any suitable bus or interconnection.

[0053] Furthermore, in conjunction with the air conditioning unit load control method in the above embodiments, this application embodiment can provide a computer-readable storage medium for implementation. This computer-readable storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any one of the air conditioning unit load control methods in the above embodiments.

[0054] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0055] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for load control of an air conditioning unit, characterized in that, The method includes: During the operation of the air conditioning unit, the supply water temperature of the air conditioning unit, the return water temperature of the air conditioning unit, and the water valve adjustment status within the building are monitored. The air conditioning unit is used to regulate the temperature within the building. The water valve adjustment status indicates whether the water valve is in a fully open or partially closed state. The load of the air conditioning unit is controlled based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit, as well as the water valve adjustment status of each floor in the building. The method further includes: The system detects the return water temperature of the target floor, the supply water temperature of the target floor, and the rate of change of room temperature on the target floor, wherein the target floor is one of the floors in the building; and controls the water valve adjustment of the target floor based on the temperature difference between the return water temperature and the supply water temperature of the target floor and the rate of change of room temperature on the target floor. The step of controlling the water valve adjustment of the target floor based on the temperature difference between the return water temperature and the supply water temperature of the target floor, and the rate of change of room temperature on the target floor, includes: If the rate of change of room temperature on the target floor is detected to exceed the third temperature threshold, the water valve on the target floor will be opened wider. If the rate of change of room temperature on the target floor is detected to be lower than the fourth temperature threshold, then the number of rooms on the target floor that require temperature adjustment is detected. If the number of rooms on the target floor that require temperature adjustment is less than the fifth value, and the temperature difference between the return water temperature of the target floor and the average temperature of all rooms on the target floor that require temperature adjustment is less than the fifth temperature threshold, then the water valve on the target floor is controlled to be turned down, wherein the fourth temperature threshold is lower than the third temperature threshold. If the detected room temperature change rate on the target floor is not lower than the fourth temperature threshold and does not exceed the third temperature threshold, then the number of rooms on the target floor that require temperature adjustment is detected; if the number of rooms on the target floor that require temperature adjustment exceeds the sixth value, and the temperature of all rooms on the target floor that require temperature adjustment exceeds the seventh value is greater than the target average temperature, then the water valve on the target floor is opened wider, wherein the target average temperature is the average temperature of the rooms on the target floor that require temperature adjustment; if the number of rooms on the target floor that require temperature adjustment does not exceed the sixth value, then the water valve of the corresponding room on the target floor is adjusted.

2. The method according to claim 1, characterized in that, The method of controlling the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit and the water valve adjustment status of each floor in the building includes: If the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit exceeds a first temperature threshold, the compressor of the air conditioning unit is controlled to load. If the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit is not detected to exceed the first temperature threshold, the compressor of the air conditioning unit is controlled to unload.

3. The method according to claim 1, characterized in that, The method of controlling the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit and the water valve adjustment status of each floor in the building includes: If it is detected that the water valves on floors exceeding the first value in the building are all in the fully open state, then the compressor of the air conditioning unit is controlled to load. If it is detected that the water valves on floors exceeding the second value in the building are all in the partially closed state, then the compressor of the air conditioning unit is controlled to unload.

4. The method according to claim 2, characterized in that, The method of controlling the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit and the water valve adjustment status of each floor in the building includes: If the temperature control demand of the building is detected to be lower than the third value, and the temperature difference between the return water temperature of the air conditioning unit and the supply water temperature of the air conditioning unit does not exceed the first temperature threshold, then the air conditioning unit is controlled to standby mode, wherein the temperature control demand is equal to the ratio of the number of rooms in the building that need temperature regulation to the total number of rooms. If the temperature control demand of the building is detected to be higher than the third value and lower than the fourth value, the compressor of the air conditioning unit will be controlled to run for a target time and then put into standby mode.

5. The method according to claim 1, characterized in that, The step of controlling the water valve adjustment of the target floor based on the temperature difference between the return water temperature and the supply water temperature of the target floor, and the rate of change of room temperature on the target floor, includes: If the temperature difference between the return water temperature of the target floor and the supply water temperature of the target floor exceeds the second temperature threshold, the water valve of the target floor will be opened wider. If the temperature difference between the return water temperature of the target floor and the supply water temperature of the target floor does not exceed the second temperature threshold, the water valve of the target floor is controlled to be closed slightly.

6. A load control device for an air conditioning unit, characterized in that, The device includes: The first detection unit is used to detect the supply water temperature of the air conditioning unit, the return water temperature of the air conditioning unit, and the water valve adjustment status in the building during the operation of the air conditioning unit, wherein the air conditioning unit is used to regulate the temperature in the building; wherein the water valve adjustment status indicates whether the water valve is in a fully open or partially closed state. The first control unit is used to control the load of the air conditioning unit based on the temperature difference between the return water temperature and the supply water temperature of the air conditioning unit and the water valve adjustment status of each floor in the building. The device further includes: The second detection unit is used to detect the return water temperature of the target floor, the supply water temperature of the target floor, and the room temperature change rate on the target floor, wherein the target floor is one of the floors in the building; The second control unit is used to control the water valve adjustment of the target floor based on the temperature difference between the return water temperature of the target floor and the supply water temperature of the target floor, as well as the rate of change of room temperature on the target floor. The step of controlling the water valve adjustment of the target floor based on the temperature difference between the return water temperature and the supply water temperature of the target floor, and the rate of change of room temperature on the target floor, includes: If the rate of change of room temperature on the target floor is detected to exceed the third temperature threshold, the water valve on the target floor will be opened wider. If the rate of change of room temperature on the target floor is detected to be lower than the fourth temperature threshold, then the number of rooms on the target floor that require temperature adjustment is detected. If the number of rooms on the target floor that require temperature adjustment is less than the fifth value, and the temperature difference between the return water temperature of the target floor and the average temperature of all rooms on the target floor that require temperature adjustment is less than the fifth temperature threshold, then the water valve on the target floor is controlled to be turned down, wherein the fourth temperature threshold is lower than the third temperature threshold. If the detected room temperature change rate on the target floor is not lower than the fourth temperature threshold and does not exceed the third temperature threshold, then the number of rooms on the target floor that require temperature adjustment is detected; if the number of rooms on the target floor that require temperature adjustment exceeds the sixth value, and the temperature of all rooms on the target floor that require temperature adjustment exceeds the seventh value is greater than the target average temperature, then the water valve on the target floor is opened wider, wherein the target average temperature is the average temperature of the rooms on the target floor that require temperature adjustment; if the number of rooms on the target floor that require temperature adjustment does not exceed the sixth value, then the water valve of the corresponding room on the target floor is adjusted.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 1 to 5.

8. An electronic device, characterized in that, include: One or more processors; A storage device for storing one or more programs, which, when executed by one or more processors, cause the one or more processors to implement the method as described in any one of claims 1 to 5.

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