Thermostat method and apparatus for an air conditioning system, air conditioning system, computer readable storage medium

Abstract

The application relates to the technical field of air conditioners, and discloses a temperature control method for an air conditioning system, which comprises the following steps: obtaining a corresponding relationship of a room temperature at a valve closing time, a water supply temperature at the valve closing time and a real-time outdoor environment temperature under a room set temperature, wherein the room temperature at the valve closing time represents a time length for the room temperature to reach the room set temperature from the valve closing time; calculating the water supply temperature at the valve closing time corresponding to different time lengths for the room temperature to reach the room set temperature and the real-time outdoor environment temperature corresponding to the different time lengths for the room temperature to reach the room set temperature according to a set time length range corresponding to the time lengths for the room temperature to reach the room set temperature; determining the valve closing time corresponding to the time length for the room temperature to reach the room set temperature that meets a room temperature condition as a target valve closing time and determining the room temperature corresponding to the target valve closing time as a target valve closing time room temperature based on the corresponding relationship. The method can improve the temperature control precision of the air conditioning system. The application further discloses a temperature control device for the air conditioning system, an air conditioning system and a computer readable storage medium.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, such as a temperature control method and apparatus for an air conditioning system, an air conditioning system, and a computer-readable storage medium. Background Technology

[0002] Currently, air conditioning systems include chiller / heater source equipment and indoor radiant terminals. The indoor radiant terminals are equipped with indoor heat exchange coils. The indoor radiant terminals handle either the room's cooling or heating load. The chiller / heater source equipment is connected to the indoor radiant terminals via piping. The piping is equipped with valves to control the start-up and shutdown of the air conditioning system.

[0003] To meet the set temperature requirements of indoor radiant terminals, the relevant technology employs a temperature-reaching valve-closing method. When the indoor temperature reaches the set temperature, the valve closes, causing the air conditioning system to enter a temperature-reaching shutdown or temperature-reaching standby state, with the indoor heat exchange coil dissipating heat after the valve is closed. Even after the air conditioning system's valve is closed, the indoor temperature continues to change along the established indoor temperature trend, exhibiting a corresponding temperature variation range.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] The related technology does not control temperature with high precision, and the real-time indoor temperature variation range is greater than the upper and lower limits of temperature control, resulting in low comfort.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a temperature control method and apparatus for an air conditioning system, an air conditioning system, and a computer-readable storage medium to improve the accuracy of temperature control and enhance user comfort.

[0009] In some embodiments, the correspondence between the time taken to reach the set indoor temperature and the indoor temperature at the valve closing time, the water supply temperature at the valve closing time, and the real-time outdoor ambient temperature is obtained under the set indoor temperature. The time taken to reach the set indoor temperature represents the time it takes for the indoor temperature to rise from the indoor temperature at the valve closing time. Based on the set time range corresponding to the time taken to reach the set indoor temperature, the water supply temperature at the valve closing time corresponding to different times taken to reach the set indoor temperature and the real-time outdoor ambient temperature corresponding to different times taken to reach the set indoor temperature are calculated. Based on the correspondence, the valve closing time corresponding to the time taken to reach the set indoor temperature that satisfies the indoor temperature condition is determined as the target valve closing time, and the indoor temperature corresponding to the target valve closing time is determined as the indoor temperature at the target valve closing time.

[0010] In some embodiments, obtaining the correspondence between the time to reach the set indoor temperature and the indoor temperature, the water supply temperature, and the real-time outdoor temperature at the valve closing time under the set indoor temperature includes: obtaining the correspondence between the water supply temperature at the valve closing time and the heat dissipation of the indoor radiant terminal; obtaining the correspondence between the real-time outdoor temperature and the time to reach the set indoor temperature and the outdoor environmental load; obtaining the correspondence between the indoor temperature at the valve closing time and the indoor temperature-reaching load under the set indoor temperature; and constructing the correspondence between the time to reach the set indoor temperature and the indoor temperature, the water supply temperature, and the real-time outdoor temperature at the valve closing time under the set indoor temperature.

[0011] In some embodiments, the relationship between the sum of the outdoor environmental load and the indoor temperature load and the heat dissipation of the indoor radiant terminal includes: the heat dissipation of the indoor radiant terminal is equal to the sum of the outdoor environmental load and the indoor temperature load.

[0012] In some embodiments, the method further includes: before obtaining the correspondence between the indoor temperature at the valve closing time and the indoor temperature load at the set indoor temperature, obtaining the specific heat capacity c of the indoor air. a and indoor air quality m a The indoor temperature is obtained from the indoor temperature t' at the moment the valve is closed. n Reaching indoor temperature T n The first temperature difference; based on the specific heat capacity of indoor air c a Indoor air quality m a The product of the first temperature difference is used to determine the indoor temperature load c. a m a (T n -t' n This study aims to establish the correspondence between the indoor temperature at the time of valve closure under the set indoor temperature and the indoor temperature load.

[0013] In some embodiments, the method further includes: before obtaining the correspondence between the indoor temperature at the valve closing time and the indoor temperature load at the set indoor temperature, obtaining the heat transfer coefficient K of the building envelope, the area F of the building envelope, and the real-time outdoor ambient temperature t.w Based on KF(T) n -t w The outdoor environmental load is obtained to establish the correspondence between the real-time outdoor temperature and the time to reach the set indoor temperature and the outdoor environmental load.

[0014] In some embodiments, the method further includes: before obtaining the correspondence between the indoor temperature at the valve closing time and the indoor temperature load at the set indoor temperature, obtaining the supply water temperature T1 and return water temperature T2, the convective heat transfer coefficient K1, and the heat transfer area F1; and based on the respective correspondence between the supply water temperature T1 and the return water temperature T2 and the indoor temperature T... n The difference is used to obtain the second temperature difference ΔT; based on K1F1ΔT, the heat dissipation of the indoor radiant terminal is obtained to establish the correspondence between the water supply temperature at the time of valve closure and the heat dissipation of the indoor radiant terminal.

[0015] In some embodiments, the method further includes: determining the indoor temperature corresponding to the target valve closing time as the target valve closing time indoor temperature, and obtaining the real-time indoor temperature; and controlling the air conditioning system to perform valve closing operation to dissipate heat through the indoor heat exchange coil when the real-time indoor temperature changes to the target valve closing time indoor temperature.

[0016] In some embodiments, the temperature control device includes a processor and a memory storing program instructions, the processor being configured to execute the aforementioned temperature control method for an air conditioning system when the program instructions are executed.

[0017] In some embodiments, the air conditioning system includes: an air conditioning system body; and a temperature control device for the air conditioning system as described above, installed on the air conditioning system body.

[0018] In some embodiments, the computer-readable storage medium stores program instructions that, when executed, cause a computer to perform the aforementioned temperature control method for an air conditioning system.

[0019] The temperature control method and apparatus for an air conditioning system, the air conditioning system, and the computer-readable storage medium provided in this disclosure can achieve the following technical effects:

[0020] This disclosed embodiment can obtain the target valve-closing time indoor temperature that simultaneously satisfies the correspondence relationship and indoor temperature conditions, so as to close the valve before the real-time indoor temperature reaches the indoor set temperature, and rely on the indoor heat exchange coil configured in the indoor radiant terminal to dissipate heat until the real-time indoor temperature reaches the indoor set temperature. The above temperature control method can determine the target valve-closing time of the air conditioning system based on the correspondence relationship and indoor temperature conditions, optimize the valve-closing logic under the temperature control of the air conditioning system, and close the valve in advance before the temperature changes, which is beneficial to improving the temperature control accuracy of indoor temperature and improving user comfort.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of a temperature control method for an air conditioning system provided in an embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram of another temperature control method for an air conditioning system provided in an embodiment of this disclosure;

[0025] Figure 3 This is a schematic diagram of another temperature control method for an air conditioning system provided in an embodiment of this disclosure;

[0026] Figure 4 This is a schematic diagram of another temperature control method for an air conditioning system provided in an embodiment of this disclosure;

[0027] Figure 5 This is a schematic diagram of a temperature control device for an air conditioning system provided in an embodiment of this disclosure;

[0028] Figure 6 This is a schematic diagram of an air conditioning system provided in an embodiment of this disclosure. Detailed Implementation

[0029] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0030] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0031] Unless otherwise stated, the term "multiple" means two or more.

[0032] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0033] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0034] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0035] An air conditioning system includes chiller / heater source equipment and indoor radiant terminals. The indoor radiant terminals are equipped with indoor heat exchange coils. They handle either the room's cooling or heating load. The chiller / heater source equipment is connected to the indoor radiant terminals via piping. The piping is equipped with valves to control the start-up and shutdown of the air conditioning system. When the valves are closed, the air conditioning system enters a shutdown or standby state. This air conditioning system can be a refrigeration system configured within a ducted air conditioning system. The chiller / heater source equipment includes a chiller unit or an air source heat pump. The chiller unit operates under controlled operation when the air conditioning system has cooling demand, while the air source heat pump operates under controlled operation when the air conditioning system has heating demand.

[0036] Taking a ducted air conditioning system as an example, the following explains the approach to temperature control methods used in air conditioning systems:

[0037] The ducted air conditioning system includes indoor radiant terminals and an air source heat pump, and the indoor heat exchange coils include fan coil units.

[0038] The indoor temperature is set to T n During the heating process of the room via the indoor radiant heating terminal, the indoor temperature gradually rises. When the indoor temperature rises to (T... n When -Δt), the control valve closes to stop the air conditioning system from operating. Δt represents the time between the valve closing and the indoor temperature reaching the set indoor temperature T. n The time interval is defined by the moments in time. During this time, the fan coil unit continues to dissipate heat, and the indoor temperature continues to rise after the valve is closed, eventually reaching the set indoor temperature T. n .

[0039] After the control valve is closed, the room load Q2 of the room where the indoor radiant terminal is located is equal to the heat dissipation Q1 of the indoor radiant terminal. Based on this, the room load can be obtained from the heat dissipation of the indoor radiant terminal.

[0040] Specifically, the heat dissipation of the indoor radiant terminal represents the heat dissipation of the fan coil unit, and the heat dissipation Q1 of the indoor radiant terminal is obtained as follows: Q1 = K1F1ΔT; where,

[0041] Right now

[0042] K1 represents the convective heat transfer coefficient of the indoor radiant terminal, F1 represents the heat transfer area of ​​the indoor radiant terminal, T1 represents the supply water temperature, and T2 represents the return water temperature. The supply water temperature represents the temperature of the chilled or hot water supplied to the fan coil unit in the air conditioning system. The return water temperature represents the water temperature flowing back from the fan coil unit to the heat source equipment.

[0043] Therefore, the heat dissipation of the indoor radiant terminal is K1F1ΔT and Where K1 represents the convective heat transfer coefficient of the indoor radiant terminal, F1 represents the heat transfer area of ​​the indoor radiant terminal, T1 represents the supply water temperature, and T2 represents the return water temperature.

[0044] Meanwhile, the room load of the room where the indoor radiant terminal is located consists of two parts: the room load is the sum of the outdoor environmental load Q3 and the indoor temperature load Q4.

[0045] Specifically, the outdoor environmental load Q3 is obtained as follows:

[0046] Q3=KF(T n -t w );

[0047] Where K represents the heat transfer coefficient of the building envelope, F represents the area of ​​the building envelope, and t w This represents the real-time outdoor ambient temperature, t. w τ is a function that changes over time, and represents the time it takes for the indoor temperature to reach the set indoor temperature from the moment the valve is closed.

[0048] The building envelope includes the exterior walls and windows of the room, the roof, etc., and the unit is w / m. 2 ·k (watts / (square meter·degree)), the area of ​​the building envelope is in m². 2 (square meters).

[0049] Specifically, the indoor temperature reaches the temperature load Q4 as follows:

[0050] Q4 = c a m a (T n -t' n );

[0051] Among them, c a Indicates the specific heat capacity of indoor air, m a Indicating indoor air quality, T n -t' n This indicates the indoor temperature as of the moment the valve is closed (temperature t').n Reaching indoor temperature T n The first temperature difference.

[0052] In addition, the room load Q2 is equal to the sum of the outdoor environmental load Q3 and the indoor temperature load Q4.

[0053] Therefore, after the control valve is closed, if the room load Q2 of the room where the indoor radiant terminal is located is equal to the heat dissipation Q1 of the indoor radiant terminal, then the heat dissipation Q1 of the indoor radiant terminal is equal to the sum of the outdoor environmental load Q3 and the indoor temperature load Q4.

[0054] That is, K1F1ΔT=KF(T) n -t w )+c a m a (T n -t' n (1)

[0055] It can be seen that when the indoor temperature is set to T n Once determined, the time to reach the target temperature τ and the indoor temperature t' at the valve closing time are... n Water supply temperature T1 at the time of valve closure, and real-time outdoor ambient temperature t w The functional relationship that satisfies formula (1).

[0056] Combination Figure 1 As shown, this disclosure provides a temperature control method for an air conditioning system, including:

[0057] S01, the air conditioning system obtains the correspondence between the time taken to reach the set indoor temperature and the indoor temperature, the water supply temperature at the time of valve closure, and the real-time outdoor ambient temperature. The time taken to reach the set indoor temperature indicates the duration it takes for the indoor temperature to rise from the initial indoor temperature at the time of valve closure.

[0058] S02, the air conditioning system calculates the water supply temperature at the valve closing time corresponding to different temperature-reaching times and the real-time outdoor ambient temperature corresponding to different temperature-reaching times under the indoor set temperature, according to the set time range corresponding to the temperature-reaching time.

[0059] S03, the air conditioning system determines the valve closing time corresponding to the time required to reach the desired indoor temperature based on the corresponding relationship, and determines the indoor temperature corresponding to the target valve closing time as the indoor temperature at the target valve closing time.

[0060] Using the temperature control method for an air conditioning system provided in this disclosure, this disclosure obtains the correspondence between the time taken to reach the set indoor temperature and the indoor temperature, the water supply temperature, and the real-time outdoor temperature at the valve closing time. Since the parameters related to the time taken to reach the set indoor temperature include the indoor temperature, the water supply temperature, and the real-time outdoor temperature at the valve closing time, and the indoor temperature at the valve closing time is the target parameter, after obtaining the correspondence, the water supply temperature at the valve closing time and the real-time outdoor temperature corresponding to different times taken to reach the set indoor temperature are calculated according to the set duration range corresponding to the time taken to reach the set indoor temperature. Finally, based on the correspondence, this disclosure determines the valve closing time corresponding to the time taken to reach the set indoor temperature that satisfies the indoor temperature condition as the target valve closing time, and determines the corresponding indoor temperature as the indoor temperature at the target valve closing time.

[0061] Thus, the embodiments of this disclosure can obtain the target valve-closing time indoor temperature that simultaneously satisfies the correspondence and indoor temperature conditions, so as to close the valve before the real-time indoor temperature reaches the indoor set temperature, and rely on the indoor heat exchange coil configured in the indoor radiant terminal to dissipate heat until the real-time indoor temperature reaches the indoor set temperature. The above temperature control method can determine the target valve-closing time of the air conditioning system based on the correspondence and indoor temperature conditions, optimize the valve-closing logic under the temperature control of the air conditioning system, and close the valve in advance before the temperature changes, which is beneficial to improving the temperature control accuracy of the indoor temperature and improving user comfort.

[0062] Optionally, combined Figure 2 As shown, the air conditioning system obtains the correspondence between the time to reach the set indoor temperature and the indoor temperature, the supply water temperature, and the real-time outdoor ambient temperature at the valve closing time, including:

[0063] S11, the air conditioning system obtains the correspondence between the supply water temperature at the moment the valve is closed and the heat dissipation of the indoor radiant terminal. In this step, the heat dissipation of the indoor radiant terminal refers to the heat dissipation of the indoor heat exchange coil configured in the indoor radiant terminal.

[0064] S12, the air conditioning system obtains the correspondence between the real-time outdoor ambient temperature and the time to reach the set indoor temperature and the outdoor ambient load.

[0065] S13, the air conditioning system obtains the correspondence between the indoor temperature at the time of valve closure under the indoor set temperature and the indoor temperature load.

[0066] S14, the air conditioning system establishes a correspondence between the time to reach the set temperature and the indoor temperature at the valve closing time, the supply water temperature at the valve closing time, and the real-time outdoor temperature based on the relationship between the sum of the outdoor environmental load and the indoor temperature reaching the set temperature and the indoor temperature at the valve closing time, the supply water temperature at the valve closing time, and the real-time outdoor temperature at the set temperature.

[0067] Thus, since the room load Q2 is equal to the heat dissipation Q1 from the indoor radiant terminal and Q1 = K1F1ΔT, the indoor set temperature T is obtained in this embodiment of the present disclosure. n The relationship between the water supply temperature T1 at the moment the valve is closed and the heat dissipation Q1 of the indoor radiant terminal. Based on the outdoor environmental load Q3 = KF(T n -t w As can be seen, once K and F are determined, the outdoor environmental load Q3 is determined by the real-time outdoor environmental temperature t. w and indoor set temperature T n The time to reach the target temperature τ is determined, while the real-time outdoor temperature t is determined. w Since it is a function that changes over time, this embodiment of the present disclosure also obtains the indoor set temperature T. n Real-time outdoor ambient temperature t w The relationship between the duration of temperature attainment and the outdoor environmental load (outdoor temperature load). Furthermore, based on the indoor temperature attainment load Q4 = c a m a (T n -t' n It can be seen that in c a and m a Once determined, the indoor temperature reaches the temperature load Q4, determined by the indoor temperature t' at the time the valve is closed. n Reaching indoor temperature T n Since the temperature difference is determined, this embodiment of the disclosure also obtains the correspondence between the indoor temperature at the valve closing time and the indoor temperature-reaching load at the indoor set temperature. Based on this, this embodiment of the disclosure constructs a correspondence between the temperature-reaching time and the indoor temperature at the valve closing time, the water supply temperature at the valve closing time, and the real-time outdoor temperature at the indoor set temperature, based on the relationship between the sum of the outdoor environmental load and the indoor temperature-reaching load and the heat dissipation of the indoor radiant terminal. This serves as the theoretical basis for determining the target valve closing time and the indoor temperature at the target valve closing time, ensuring the accuracy and reliability of the target valve closing time calculation, thereby improving the temperature control accuracy of the indoor temperature in the air conditioning system.

[0068] Optionally, the relationship between the sum of the outdoor environmental load and the indoor temperature load and the heat dissipation of the indoor radiant terminals includes:

[0069] The heat dissipation of indoor radiant terminals is equal to the sum of the outdoor environmental load and the indoor temperature load.

[0070] This provides a theoretical basis for calculating the target valve closing time and the indoor temperature at the target valve closing time, which helps to improve the accuracy and reliability of the target valve closing time calculation, thereby improving the temperature control accuracy of the indoor temperature of the air conditioning system.

[0071] Optionally, the temperature control method for an air conditioning system also includes:

[0072] Before the air conditioning system obtains the correspondence between the indoor temperature at the valve closing time and the indoor temperature load at the set indoor temperature, it obtains the specific heat capacity c of the indoor air. a and indoor air quality m a .

[0073] The air conditioning system obtains the indoor temperature from the indoor temperature t' at the moment the valve is closed. n Reaching indoor temperature T n The first temperature difference.

[0074] Air conditioning systems are based on the specific heat capacity of indoor air, c a Indoor air quality m a The product of the first temperature difference is used to determine the indoor temperature load c. a m a (T n -t' n This study aims to establish the correspondence between the indoor temperature at the time of valve closure under the set indoor temperature and the indoor temperature load.

[0075] Thus, based on the indoor temperature reaching the temperature load Q4=c a m a (T n -t' n It can be seen that in c a and m a Once determined, the indoor temperature reaches the temperature load Q4, determined by the indoor temperature t' at the time the valve is closed. n Reaching indoor temperature T n The temperature difference is determined based on the indoor air specific heat capacity c. a Indoor air quality m a The product of the first temperature difference is used to determine the indoor temperature load c. a m a (T n -t' n This study aims to establish the correspondence between the indoor temperature at the time of valve closure under the set indoor temperature and the indoor temperature load.

[0076] Optionally, the temperature control method for an air conditioning system also includes:

[0077] Before the air conditioning system obtains the correspondence between the indoor temperature at the valve closing time and the indoor temperature load at the set indoor temperature, it needs to obtain the heat transfer coefficient K of the building envelope, the area F of the building envelope, and the real-time outdoor ambient temperature t. w .

[0078] The air conditioning system is based on KF(T) n -t w The outdoor environmental load is obtained to establish the correspondence between the real-time outdoor temperature and the time to reach the set indoor temperature and the outdoor environmental load.

[0079] Thus, based on the outdoor environmental load Q3 = KF(T) n -t w As can be seen, once K and F are determined, the outdoor environmental load Q3 is determined by the real-time outdoor environmental temperature t. w and indoor set temperature T n The time to reach the target temperature τ is determined, while the real-time outdoor temperature t is determined. w Since it is a function that changes over time, before obtaining the correspondence between the indoor temperature at the valve closing time and the indoor temperature load at the set indoor temperature in this embodiment of the disclosure, the heat transfer coefficient K of the building envelope, the area F of the building envelope, and the real-time outdoor ambient temperature t are obtained. w And based on KF(T) n -t w The outdoor environmental load is obtained to establish the correspondence between the real-time outdoor temperature and the time to reach the set indoor temperature and the outdoor environmental load.

[0080] Optionally, combined Figure 3 As shown, the temperature control method for air conditioning systems also includes:

[0081] S21, before the air conditioning system obtains the correspondence between the indoor temperature and the indoor temperature load at the time of valve closure under the indoor set temperature, it obtains the supply water temperature T1 and return water temperature T2, the convective heat transfer coefficient K1, and the heat transfer area F1.

[0082] S22, the air conditioning system, based on the supply water temperature T1 and return water temperature T2, respectively, correlates with the indoor temperature T... n The difference is used to obtain the second temperature difference ΔT.

[0083] S23, the air conditioning system obtains the heat dissipation of the indoor radiant terminal according to K1F1ΔT, so as to establish the correspondence between the water supply temperature at the time of valve closure and the heat dissipation of the indoor radiant terminal.

[0084] Thus, since the heat dissipation at the indoor radiant terminal is Q1=K1F1ΔT and Therefore, before obtaining the correspondence between the indoor temperature and the indoor temperature load at the valve closing time under the set indoor temperature in this embodiment, the supply water temperature T1 and return water temperature T2, the convective heat transfer coefficient K1, and the heat transfer area F1 are also obtained. Furthermore, the relationship between the supply water temperature T1 and return water temperature T2 and the indoor temperature T is determined. n The difference is used to obtain the second temperature difference ΔT. Finally, based on K1F1ΔT, the heat dissipation of the indoor radiant terminal is obtained to establish the correspondence between the water supply temperature at the moment of valve closure and the heat dissipation of the indoor radiant terminal.

[0085] Combination Figure 4 As shown in the embodiments of this disclosure, a temperature control method for an air conditioning system is also provided, including:

[0086] S31, the air conditioning system obtains the correspondence between the time taken to reach the set indoor temperature and the indoor temperature, the water supply temperature at the time of valve closure, and the real-time outdoor ambient temperature. The time taken to reach the set indoor temperature indicates the duration it takes for the indoor temperature to rise from the initial temperature at the time of valve closure.

[0087] S32, the air conditioning system calculates the water supply temperature at the valve closing time corresponding to different temperature-reaching times and the real-time outdoor ambient temperature corresponding to different temperature-reaching times under the indoor set temperature, according to the set time range corresponding to the temperature-reaching time.

[0088] S33, the air conditioning system determines the valve closing time corresponding to the time required to reach the desired indoor temperature based on the corresponding relationship, and determines the indoor temperature corresponding to the target valve closing time as the indoor temperature at the target valve closing time.

[0089] S34, after the air conditioning system determines the indoor temperature corresponding to the target valve closing time as the target valve closing time indoor temperature, it obtains the real-time indoor temperature.

[0090] S35, when the real-time indoor temperature changes to the target indoor temperature at the valve closing time, the air conditioning system controls the air conditioning system to perform valve closing operation to dissipate heat through the indoor heat exchange coil.

[0091] Using the temperature control method for an air conditioning system provided in this disclosure, this disclosure obtains the correspondence between the time taken to reach the set indoor temperature and the indoor temperature, the water supply temperature, and the real-time outdoor temperature at the valve closing time. Since the parameters related to the time taken to reach the set indoor temperature include the indoor temperature, the water supply temperature, and the real-time outdoor temperature at the valve closing time, and the indoor temperature at the valve closing time is the target parameter, after obtaining the correspondence, the water supply temperature at the valve closing time and the real-time outdoor temperature corresponding to different times taken to reach the set indoor temperature are calculated according to the set duration range corresponding to the time taken to reach the set indoor temperature. Finally, based on the correspondence, this disclosure determines the valve closing time corresponding to the time taken to reach the set indoor temperature that satisfies the indoor temperature condition as the target valve closing time, and determines the corresponding indoor temperature as the indoor temperature at the target valve closing time.

[0092] Furthermore, since the indoor temperature continues to rise or fall after the valve is closed, the valve-closing method provided by related technologies may cause excessive heating or cooling, resulting in energy waste. Also, when the real-time indoor temperature changes to the target valve-closing temperature, it has not yet reached the set indoor temperature. This embodiment of the present disclosure can slowly raise the real-time indoor temperature by relying on heat exchange coils to dissipate heat before the real-time indoor temperature reaches the set indoor temperature, thus saving energy.

[0093] In practical applications, the temperature control method used in air conditioning systems specifically implements the following steps:

[0094] Step S101: Obtain the supply water temperature T1 and return water temperature T2, convective heat transfer coefficient K1, heat transfer area F1, and indoor air specific heat capacity c. a Indoor air density ρ a Room volume V a And obtain the real-time outdoor ambient temperature t through a temperature sensor. w The system obtains the real-time indoor temperature, as well as the heat transfer coefficient K and the area F of the building envelope.

[0095] Step S102: The preset temperature reaching time is set within the range of [0, 4h].

[0096] Step S103, iterative calculation, substituting the time to reach the temperature τ into K1F1ΔT=KF(T) within the set time range. n -t w )+c a m a (T n -t' n ), Calculate the difference between the real-time indoor temperature and the set indoor temperature T after closing the valve, given the currently measured real-time supply water temperature, real-time return water temperature, and real-time indoor temperature. n Are they equal?

[0097] If they are equal, then the real-time indoor temperature and the indoor set temperature T n The current moment, when they are equal, is the target valve-closing moment. Simultaneously, the indoor temperature t' corresponding to the target valve-closing moment... n This refers to the indoor temperature at the target valve closing time.

[0098] Step S104: When the real-time indoor temperature rises to the target valve-closing time, the air conditioning system is controlled to close the valve to dissipate heat through the indoor heat exchange coil. The indoor temperature then gradually rises until it reaches the set indoor temperature T. n .

[0099] Combination Figure 5 As shown, this disclosure provides a temperature control device 70 for an air conditioning system, including a processor 700 and a memory 701. Optionally, the device 70 may further include a communication interface 702 and a bus 703. The processor 700, communication interface 702, and memory 701 can communicate with each other via the bus 703. The communication interface 702 can be used for information transmission. The processor 700 can call logical instructions in the memory 701 to execute the temperature control method for an air conditioning system described in the above embodiment.

[0100] Furthermore, the logic instructions in the aforementioned memory 701 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0101] The memory 701, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 700 executes functional applications and data processing by running the program instructions / modules stored in the memory 701, thereby implementing the temperature control method for the air conditioning system in the above embodiments.

[0102] The memory 701 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 701 may include high-speed random access memory and may also include non-volatile memory.

[0103] Combination Figure 6 As shown, this disclosure provides an air conditioning system 100, including: a product body and the aforementioned temperature control device 70 for the air conditioning system. The temperature control device 70 for the air conditioning system is installed on the air conditioning system body. The installation relationship described herein is not limited to placement inside the air conditioning system body, but also includes installation connections with other components of the air conditioning system, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art will understand that the temperature control device 70 for the air conditioning system can be adapted to feasible air conditioning system bodies, thereby realizing other feasible embodiments. This disclosure also provides a computer-readable storage medium storing computer-executable instructions configured to execute the aforementioned temperature control method for the air conditioning system.

[0104] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, such as a USB flash drive, external hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, etc., and other media capable of storing program code.

[0105] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0106] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0107] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. 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 units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0108] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A temperature control method for an air conditioning system, characterized in that, include: Obtain the correspondence between the time to reach the set indoor temperature and the indoor temperature at the time of valve closure, the water supply temperature at the time of valve closure, and the real-time outdoor ambient temperature; where the time to reach the set indoor temperature represents the time it takes for the indoor temperature to reach the set indoor temperature from the time of valve closure. Based on the set duration range corresponding to the temperature reaching time, calculate the water supply temperature at the valve closing time corresponding to different temperature reaching times under the indoor set temperature, and the real-time outdoor ambient temperature corresponding to different temperature reaching times. Based on the correspondence, the valve closing time corresponding to the time required to reach the desired indoor temperature is determined as the target valve closing time, and the indoor temperature corresponding to the target valve closing time is determined as the indoor temperature at the target valve closing time.

2. The method according to claim 1, characterized in that, Obtain the correlation between the time to reach the set indoor temperature and the indoor temperature, the supply water temperature, and the real-time outdoor ambient temperature at the valve closing time, at the set indoor temperature, including: Obtain the relationship between the water supply temperature at the moment the valve is closed and the heat dissipation of the indoor radiant terminal. Obtain the correspondence between the real-time outdoor temperature and the time to reach the set indoor temperature and the outdoor environmental load; Obtain the relationship between the indoor temperature at the time of valve closure under the set indoor temperature and the indoor temperature load. Based on the relationship between the sum of outdoor environmental load and indoor temperature load and the heat dissipation of indoor radiant terminals, a correspondence is established between the time to reach the set indoor temperature and the indoor temperature at the valve closing time, the water supply temperature at the valve closing time, and the real-time outdoor environmental temperature.

3. The method according to claim 2, characterized in that, The relationship between the sum of outdoor environmental load and indoor temperature load and the heat dissipation of indoor radiant terminals includes: The heat dissipation of indoor radiant terminals is equal to the sum of the outdoor environmental load and the indoor temperature load.

4. The method according to claim 2, characterized in that, Also includes: Before obtaining the relationship between the indoor temperature at the valve closing time and the indoor temperature load at the set indoor temperature, the specific heat capacity of the indoor air, c, is obtained. a and indoor air quality m a ; The indoor temperature is obtained from the indoor temperature t' at the moment the valve is closed. n Reaching indoor temperature T n The first temperature difference; Based on the specific heat capacity of indoor air c a Indoor air quality m a The product of the first temperature difference is used to determine the indoor temperature load c. a m a (T n -t' n This study aims to establish the correspondence between the indoor temperature at the time of valve closure under the set indoor temperature and the indoor temperature load.

5. The method according to claim 2, characterized in that, Also includes: Before obtaining the correspondence between indoor temperature and indoor temperature load at the valve closing time under the set indoor temperature, the heat transfer coefficient K of the building envelope, the area F of the building envelope, and the real-time outdoor ambient temperature t are obtained. w ; Based on KF(T) n -t w The outdoor environmental load is obtained to establish the correspondence between the real-time outdoor temperature and the time to reach the set indoor temperature and the outdoor environmental load.

6. The method according to claim 2, characterized in that, Also includes: Before obtaining the correspondence between the indoor temperature and the indoor temperature load at the valve closing time under the indoor set temperature, obtain the supply water temperature T1 and return water temperature T2, the convective heat transfer coefficient K1, and the heat transfer area F1. Based on the supply water temperature T1 and return water temperature T2, and their respective indoor temperatures T n The difference is used to obtain the second temperature difference ΔT; Based on K1F1ΔT, the heat dissipation of the indoor radiant terminal is obtained to establish the correspondence between the water supply temperature at the moment of valve closure and the heat dissipation of the indoor radiant terminal.

7. The method according to any one of claims 1 to 6, characterized in that, Also includes: After determining the indoor temperature corresponding to the target valve closing time as the indoor temperature at the target valve closing time, the real-time indoor temperature is obtained. When the real-time indoor temperature changes to the target indoor temperature at the valve closing time, the air conditioning system is controlled to close the valve to dissipate heat through the indoor heat exchange coil.

8. A temperature control device for an air conditioning system, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the temperature control method for an air conditioning system as described in any one of claims 1 to 7.

9. An air conditioning system, characterized in that, include: Air conditioning system body; The temperature control device for an air conditioning system as described in claim 8 is installed on the air conditioning system body.

10. A computer-readable storage medium storing program instructions, characterized in that, When the program instructions are executed, they cause the computer to perform the temperature control method for an air conditioning system as described in any one of claims 1 to 7.

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