Temperature control method and device for air conditioning system, air conditioning system and computer readable storage medium

Abstract

The invention relates to the technical field of air conditioners, and discloses a temperature control method for an air conditioning system, which comprises the following steps of: obtaining a corresponding relation between temperature reaching duration and indoor temperature at a valve closing moment, surface temperature of a heat accumulator at the valve closing moment and real-time temperature of an outdoor environment at an indoor set temperature; the temperature reaching duration represents the duration that the indoor temperature reaches the indoor set temperature from the indoor temperature at the valve closing moment; according to the set duration range corresponding to the temperature reaching duration, calculating the surface temperature of the heat accumulator at the valve closing moment corresponding to different temperature reaching durations under the indoor set temperature and the real-time temperature of the outdoor environment corresponding to the different temperature reaching durations; and determining the valve closing moment corresponding to the temperature reaching duration meeting the indoor temperature condition as a target valve closing moment based on the corresponding relation, and determining the indoor temperature corresponding to the target valve closing moment as the indoor temperature of the target valve closing moment. The method can improve the temperature control precision of the air conditioning system. The invention further discloses a temperature control device for the air conditioning system, the air conditioning system and a computer readable storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, for example, to a temperature control method and device for an air conditioning system, an air conditioning system, and a computer-readable storage medium. Background Art

[0002] At present, the air-conditioning system includes an outdoor unit, an indoor radiation terminal, and a main control system. The outdoor unit is connected to the indoor radiation terminal and the main control system through a pipeline. The pipeline is equipped with a valve to control the start or stop operation of the air-conditioning system. Among them, the indoor radiation terminal bears the room cooling load or the room heating load, and the indoor radiation terminal includes a radiator. When the indoor radiation terminal bears the room heat load, the radiator is a heat storage body. In order to meet the requirements of the indoor unit set temperature, the relevant technology adopts a temperature-reaching valve closing method. When the indoor temperature reaches the indoor set temperature, the valve is closed to make the air-conditioning system enter the temperature-reaching shutdown state or the temperature-reaching standby state. The heat storage body continues to release heat or cool after the valve is closed. After closing the valve of the air-conditioning system, the indoor temperature continues to change along the trend of the indoor temperature change, and has a corresponding temperature change range.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] The temperature control accuracy of the related technology is not high, and the real-time indoor temperature variation range will be greater than the upper and lower limits of the temperature control, resulting in low comfort.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a temperature control method and device for an air-conditioning system, an air-conditioning system, and a computer-readable storage medium to improve the accuracy of temperature control and improve user comfort.

[0008] In some embodiments, the method includes: obtaining the correspondence between the time to reach the temperature and the indoor temperature at the valve closing time, the surface temperature of the heat storage body at the valve closing time, and the real-time temperature of the outdoor environment under the indoor set temperature; wherein the time to reach the temperature represents the time for the indoor temperature to reach the indoor set temperature from the indoor temperature at the valve closing time; according to the set time range corresponding to the time to reach the temperature, calculating the surface temperature of the heat storage body at the valve closing time corresponding to different times to reach the temperature at the indoor set temperature and the real-time temperature of the outdoor environment corresponding to different times to reach the temperature; after calculating the surface temperature of the heat storage body at the valve closing time corresponding to different times to reach the temperature at the indoor set temperature and the real-time temperature of the outdoor environment corresponding to different times to reach the temperature, based on the correspondence, determine the valve closing time corresponding to the time to reach the temperature that meets the indoor temperature condition as the target valve closing time, and determine the indoor temperature corresponding to the target valve closing time as the target indoor temperature at the valve closing time.

[0009] In some embodiments, the correspondence between the time to reach the temperature and the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment at the indoor set temperature is obtained, including: obtaining the correspondence between the surface temperature of the heat storage body at the time of valve closing and the heat storage amount of the heat storage body; obtaining the correspondence between the real-time temperature of the outdoor environment at the indoor set temperature and the time to reach the temperature and the outdoor environmental load; obtaining the correspondence between the indoor temperature at the time of valve closing and the indoor temperature reaching load 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 storage amount of the heat storage body, constructing the correspondence between the time to reach the temperature and the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment at the indoor set temperature.

[0010] In some embodiments, the relationship between the sum of the outdoor environmental load and the indoor temperature load and the heat storage amount of the thermal storage body includes: the heat storage amount of the thermal storage body is equal to the sum of the outdoor environmental load and the indoor temperature load.

[0011] In some embodiments, the method further includes: obtaining the indoor air specific heat capacity c before obtaining the corresponding relationship between the indoor temperature at the time of closing the valve and the indoor temperature load at the indoor set temperature a and indoor air quality m a ; Get the indoor temperature from the indoor temperature at the time of valve closing t' n Reach room temperature T n The first temperature difference; according to the indoor air specific heat capacity c a and indoor air quality a , the product of the first temperature difference, to determine the indoor temperature load c a m a (T n -t' n ) to establish the corresponding relationship between the indoor temperature at the time of valve closing at the indoor set temperature and the indoor temperature load.

[0012] In some embodiments, the method further includes: obtaining the corresponding relationship between the indoor temperature at the time of closing the valve at the indoor set temperature and the indoor temperature load; obtaining the heat transfer coefficient K of the enclosure structure and the area F of the enclosure structure, the real-time temperature t of the outdoor environment; w ;based on The outdoor environmental load is obtained to construct the corresponding relationship between the real-time outdoor environmental temperature and the time to reach the temperature under the indoor set temperature and the outdoor environmental load.

[0013] In some embodiments, the method further includes: obtaining the specific heat capacity c of the radiator before obtaining the corresponding relationship between the indoor temperature at the time of closing the valve and the indoor temperature load at the indoor set temperature g and heat storage mass m g ; Get the surface temperature t of the heat storage body at the time of valve closing pj Reach room temperature T n The second temperature difference; according to the specific heat capacity c of the radiator g and heat storage mass m g , the product of the second temperature difference, to determine the indoor temperature load c g m g (t pj -T n ) to establish the corresponding relationship between the surface temperature of the heat storage body and the heat storage amount of the heat storage body at the time of valve closing.

[0014] In some embodiments, it also includes: after determining that the indoor temperature corresponding to the target valve closing time is the indoor temperature at the target valve closing time, obtaining the real-time indoor temperature; when the real-time indoor temperature changes to the indoor temperature at the target valve closing time, controlling the air-conditioning system to perform a valve closing operation to continue to transfer cold or heat through the heat storage body.

[0015] In some embodiments, the device includes a processor and a memory storing program instructions, and the processor is configured to execute the temperature control method for the air-conditioning system as described above when running the program instructions.

[0016] 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.

[0017] In some embodiments, the storage medium stores program instructions, and when the program instructions are executed, the computer is used to execute the temperature control method for the air-conditioning system as described above.

[0018] The temperature control method and device for an air conditioning system, the air conditioning system, and the computer-readable storage medium provided in the embodiments of the present disclosure can achieve the following technical effects:

[0019] The embodiment of the present disclosure obtains the correspondence between the time to reach the temperature under the indoor set temperature and the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment. After obtaining the corresponding relationship, the surface temperature of the heat storage body at the time of valve closing corresponding to different time to reach the temperature and the real-time temperature of the outdoor environment corresponding to different time to reach the temperature are calculated according to the set time range corresponding to the time to reach the temperature. Finally, based on the corresponding relationship, the valve closing time corresponding to the time to reach the temperature that meets the indoor temperature condition is determined as the target valve closing time, and the corresponding indoor temperature is determined as the indoor temperature at the target valve closing time. In this way, the embodiment of the present disclosure can close the valve before the real-time indoor temperature reaches the indoor set temperature, and continue to transmit cold or heat to the room by relying on the indoor and pipeline heat storage until the real-time indoor temperature reaches the indoor set temperature. The above-mentioned temperature control method can determine the target valve closing time of the air-conditioning system based on the corresponding relationship and the indoor temperature condition, 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 conducive to improving the temperature control accuracy of the indoor temperature and improving the user comfort.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0022] Figure 1 is a schematic diagram of a temperature control method for an air conditioning system provided by an embodiment of the present disclosure;

[0023] Figure 2 is a schematic diagram of another temperature control method for an air conditioning system provided by an embodiment of the present disclosure;

[0024] Figure 3 is a schematic diagram of another temperature control method for an air conditioning system provided by an embodiment of the present disclosure;

[0025] Figure 4 is a schematic diagram of another temperature control method for an air conditioning system provided by an embodiment of the present disclosure;

[0026] Figure 5 is a schematic diagram of another temperature control method for an air conditioning system provided by an embodiment of the present disclosure;

[0027] Figure 6 Schematic diagram of a temperature control device for an air-conditioning system provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0030] Unless otherwise stated, the term "plurality" means two or more.

[0031] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0032] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0033] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0034] The air conditioning system includes an outdoor unit, an indoor radiation terminal, and a main control system. The indoor radiation terminal includes indoor radiation cooling equipment and / or heating equipment. The indoor radiation terminal bears the room cooling load or room heating load, wherein the indoor radiation cooling equipment bears the room cooling load and the heating equipment bears the room heating load. The outdoor unit is connected to the indoor radiation terminal and the main control system through a pipeline. The pipeline is equipped with a valve to control the start or stop of the air conditioning system. When the valve is closed, the air conditioning system enters a shutdown or standby state.

[0035] Taking the indoor radiation terminal including heating equipment as an example, the idea of ​​the temperature control method for the air conditioning system is explained as follows:

[0036] The indoor temperature is set to T n When the heating equipment is heating the room where the indoor radiation terminal is located, the indoor temperature and the radiator temperature gradually rise. When the indoor temperature rises to (T n-Δt), the control valve is closed to stop the air conditioning system. Δt represents the closing time of the valve and the time when the indoor temperature reaches the indoor set temperature T n At this time, the heat stored in the radiator itself is transferred to the room, and the indoor temperature continues to rise after the valve is closed and eventually reaches the indoor set temperature T n .

[0037] After the control valve is closed, the room load Q2 of the room where the indoor radiation terminal is located is equal to the heat storage Q1 of the heat storage body. Based on this, the room load can be obtained according to the heat storage of the heat storage body.

[0038] Specifically, the heat storage capacity Q1 of the heat storage body is obtained as follows: Q1 = c g m g (t pj -T n ), where c g represents the specific heat capacity of the radiator, m g Represents the mass of the heat storage body, t pj Indicates the surface temperature of the heat storage body when the valve is closed.

[0039] Therefore, the room load is c g m g (t pj -T n ), where c g represents the specific heat capacity of the radiator, m g Represents the mass of the heat storage body, t pj Indicates the surface temperature of the heat storage body when the valve is closed.

[0040] At the same time, the room load of the room where the indoor radiation terminal is located is composed of two parts. The room load is the sum of the outdoor environmental load Q3 and the indoor temperature load Q4.

[0041] Specifically, the outdoor environmental load Q3 is obtained as follows:

[0042]

[0043] Where K represents the heat transfer coefficient of the enclosure structure, F represents the area of ​​the enclosure structure, and t w Indicates the real-time temperature of the outdoor environment. The real-time temperature of the outdoor environment t w It is a function that changes with time, τ represents the time it takes to reach the temperature, and the time it takes for the indoor temperature to reach the set indoor temperature from the time the valve is closed.

[0044] The enclosure structure includes the room's exterior walls, windows, and roof, etc. The unit is w / m 2 k (W / (m2·degree)), the unit of enclosure area is m 2 (square meters).

[0045] Specifically, the indoor temperature reaches the temperature load Q4 in the following manner:

[0046] Q4=c a m a (T n -t' n );

[0047] Among them, c a represents the specific heat capacity of indoor air, m a Indicates indoor air quality, T n -t' n Indicates that the indoor temperature is the indoor temperature at the time of valve closing t' n Reach room temperature T n The first temperature difference.

[0048] In addition, the room load Q2 is equal to the sum of the outdoor environmental load Q3 and the indoor temperature reaching load Q4.

[0049] Therefore, after the control valve is closed, when the room load Q2 of the room where the indoor radiation terminal is located is equal to the heat storage capacity Q1 of the heat storage body, the heat storage capacity Q1 of the heat storage body is equal to the sum of the outdoor environmental load Q3 and the indoor temperature load Q4.

[0050] Right now

[0051] It can be seen that when the indoor temperature is set to T n After the temperature is determined, the time to reach the temperature τ and the indoor temperature at the time of valve closing t' n The surface temperature of the heat storage body at the time of valve closing t pj , outdoor environment real-time temperature t w Satisfies the functional relationship of formula (1).

[0052] Combination Figure 1 As shown, the embodiment of the present disclosure provides a temperature control method for an air conditioning system, comprising:

[0053] S01, the air conditioning system obtains the corresponding relationship between the time to reach the temperature under the indoor set temperature, the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment. Among them, the time to reach the temperature indicates the time it takes for the indoor temperature to reach the indoor set temperature from the indoor temperature at the time of valve closing.

[0054] In this step, under the indoor set temperature, the corresponding relationship between the temperature reaching time and the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment is:

[0055]

[0056] Among them, τ represents the time to reach the temperature, t'n Indicates the indoor temperature at the time of valve closing, t pj Indicates the surface temperature of the heat storage body when the valve is closed, T n Indicates the indoor set temperature, t w Indicates the real-time temperature of the outdoor environment.

[0057] c g represents the specific heat capacity of the radiator, m g represents the mass of the heat storage body, c a represents the specific heat capacity of indoor air, m a represents indoor air quality, K represents heat transfer coefficient of enclosure structure, and F represents area of ​​enclosure structure.

[0058] S02, the air conditioning system calculates the surface temperature of the heat storage body at the valve closing moment corresponding to different temperature-reaching times at the indoor set temperature and the real-time temperature of the outdoor environment corresponding to different temperature-reaching times according to the set time range corresponding to the temperature-reaching times.

[0059] S03, after calculating the surface temperature of the heat storage body at the valve closing time corresponding to different temperature-reaching times under the indoor set temperature and the real-time temperature of the outdoor environment corresponding to different temperature-reaching times, the air-conditioning system determines the valve closing time corresponding to the temperature-reaching time that meets the indoor temperature conditions as the target valve closing time 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 by an embodiment of the present disclosure, the embodiment of the present disclosure obtains the correspondence between the time to reach the temperature under the indoor set temperature and the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment. Since in the correspondence, the parameters related to the time to reach the temperature include the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment, and the indoor temperature at the time of valve closing is the target parameter, after obtaining the correspondence, the surface temperature of the heat storage body at the time of valve closing corresponding to different times to reach the temperature and the real-time temperature of the outdoor environment corresponding to different times to reach the temperature under the indoor set temperature will be calculated according to the set time range corresponding to the time to reach the temperature. Finally, based on the correspondence, the embodiment of the present disclosure determines the valve closing time corresponding to the time to reach the temperature that meets 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] In this way, the disclosed embodiment can obtain the indoor temperature at the target valve closing time that satisfies both the corresponding relationship and the indoor temperature conditions, so as to close the valve before the real-time indoor temperature reaches the indoor set temperature, and continue to transfer cold or heat to the room by relying on the indoor and pipeline heat storage 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 corresponding relationship and the 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 conducive to improving the temperature control accuracy of the indoor temperature and improving the user comfort.

[0062] Optionally, combined Figure 2 As shown, the air conditioning system obtains the corresponding relationship between the time to reach the temperature and the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment under the indoor set temperature, including:

[0063] S11, the air conditioning system obtains the corresponding relationship between the surface temperature of the heat storage body and the heat storage amount of the heat storage body at the time of closing the valve.

[0064] S12, the air conditioning system obtains the corresponding relationship between the real-time temperature of the outdoor environment and the time to reach the temperature under the indoor set temperature and the outdoor environmental load.

[0065] S13, the air conditioning system obtains the corresponding relationship between the indoor temperature at the time of valve closing at the indoor set temperature and the indoor temperature load.

[0066] S14, the air conditioning system constructs a correspondence between the time to reach the temperature at the set indoor temperature and the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment based on the relationship between the sum of the outdoor environmental load and the indoor temperature load and the heat storage body.

[0067] In this way, since the room load Q2 is equal to the heat storage body heat storage Q1 and Q1 = c g m g (t pj -T n ), therefore, the embodiment of the present disclosure obtains the indoor set temperature T n The surface temperature of the heat storage body when the valve is closed is t pj Corresponding relationship with the heat storage capacity Q1 of the heat storage body. Based on outdoor environmental load It can be seen that after K and F are determined, the outdoor environmental load Q3 is determined by the outdoor environmental real-time temperature t w and indoor set temperature T n , the time to reach the temperature τ is determined, and the real-time temperature of the outdoor environment t w is a function that changes with time. Therefore, the embodiment of the present disclosure also obtains the indoor set temperature T n Real-time temperature of outdoor environment w And the corresponding relationship between the time to reach the temperature and the outdoor environmental load outdoor temperature load. In addition, based on the indoor temperature reaching temperature load Q4 = ca m a (T n -t' n ) It can be seen that in c a and m a After the indoor temperature reaches the temperature load Q4, the indoor temperature at the time of valve closing is t' n Reach room temperature T n Therefore, the embodiment of the present disclosure also obtains the correspondence between the indoor temperature at the time of valve closing at the indoor set temperature and the indoor temperature reaching load. On this basis, the embodiment of the present disclosure constructs the correspondence between the temperature reaching time and the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment 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 storage body. This serves as a 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 of the air-conditioning system.

[0068] Optionally, the relationship between the sum of the outdoor environmental load and the indoor temperature load and the heat storage amount of the heat storage body includes: the heat storage amount of the heat storage body is equal to the sum of the outdoor environmental load and the indoor temperature load.

[0069] In this way, a theoretical basis is provided for the calculation of the target valve closing time and the indoor temperature at the target valve closing time, which is conducive to improving 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.

[0070] Combination Figure 3 As shown, the embodiment of the present disclosure also provides a temperature control method for an air conditioning system, comprising:

[0071] S21, the air conditioning system obtains the corresponding relationship between the surface temperature of the heat storage body and the heat storage amount of the heat storage body at the time of closing the valve.

[0072] S22, the air conditioning system obtains the corresponding relationship between the outdoor environment real-time temperature and the time to reach the temperature under the indoor set temperature and the outdoor environment load. The time to reach the temperature indicates the time it takes for the indoor temperature to reach the indoor set temperature from the time when the valve is closed.

[0073] S23, the air conditioning system obtains the indoor temperature at the time of closing the valve at the indoor set temperature and the corresponding relationship between the indoor temperature load and the indoor temperature load, and obtains the indoor air specific heat capacity c a and indoor air quality m a .

[0074] S24, the air conditioning system obtains the indoor temperature from the indoor temperature t' at the time of valve closing. n Reach room temperature T n The first temperature difference.

[0075] S25, air conditioning system based on indoor air specific heat capacity c a and indoor air quality a , the product of the first temperature difference, to determine the indoor temperature load c a m a (T n -t' n ) to establish the corresponding relationship between the indoor temperature at the time of valve closing at the indoor set temperature and the indoor temperature load.

[0076] S26, the air conditioning system obtains the corresponding relationship between the indoor temperature at the time of valve closing at the indoor set temperature and the indoor temperature load.

[0077] S27, the air conditioning system constructs a correspondence between the time to reach the temperature at the set indoor temperature, the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment based on the relationship between the sum of the outdoor environmental load and the indoor temperature load and the heat storage body.

[0078] S28, the air conditioning system calculates the surface temperature of the heat storage body at the valve closing moment corresponding to different temperature-reaching times at the indoor set temperature and the real-time temperature of the outdoor environment corresponding to different temperature-reaching times according to the set time range corresponding to the temperature-reaching times.

[0079] S29, after calculating the surface temperature of the heat storage body at the valve closing time corresponding to different temperature-reaching times under the indoor set temperature and the real-time temperature of the outdoor environment corresponding to different temperature-reaching times, the air-conditioning system determines the valve closing time corresponding to the temperature-reaching time that meets the indoor temperature conditions as the target valve closing time 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.

[0080] Using the temperature control method for the air conditioning system provided by the embodiment of the present disclosure, 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 After the indoor temperature reaches the temperature load Q4, the indoor temperature at the time of valve closing is t' n Reach room temperature T n Therefore, the embodiment of the present disclosure is based on the indoor air specific heat capacity c a and indoor air quality a , the product of the first temperature difference, to determine the indoor temperature load c a m a (T n -t' n ) to establish the corresponding relationship between the indoor temperature at the time of valve closing at the indoor set temperature and the indoor temperature load.

[0081] Optionally, the temperature control method for an air conditioning system further includes:

[0082] Before the air conditioning system obtains the corresponding relationship between the indoor temperature and the indoor temperature load at the time of closing the valve at the indoor set temperature, the heat transfer coefficient K of the enclosure structure and the area F of the enclosure structure, the real-time temperature t of the outdoor environment are obtained. w .

[0083] Air conditioning system based on The outdoor environmental load is obtained to construct the corresponding relationship between the real-time outdoor environmental temperature and the time to reach the temperature under the indoor set temperature and the outdoor environmental load.

[0084] In this way, based on the outdoor environmental load It can be seen that after K and F are determined, the outdoor environmental load Q3 is determined by the outdoor environmental real-time temperature t w and indoor set temperature T n , the time to reach the temperature τ is determined, and the real-time temperature of the outdoor environment t w is a function that changes with time. Therefore, before obtaining the corresponding relationship between the indoor temperature and the indoor temperature load at the time of valve closing at the indoor set temperature, the embodiment of the present disclosure obtains the heat transfer coefficient K of the enclosure structure and the area F of the enclosure structure, and the real-time temperature t of the outdoor environment. w , and based on The outdoor environmental load is obtained to construct the corresponding relationship between the real-time outdoor environmental temperature and the time to reach the temperature under the indoor set temperature and the outdoor environmental load.

[0085] Optionally, combined Figure 4 As shown, the temperature control method for the air conditioning system also includes:

[0086] S31, the air conditioning system obtains the corresponding relationship between the indoor temperature at the time of closing the valve at the indoor set temperature and the indoor temperature load before obtaining the specific heat capacity c of the radiator g and the mass of the heat storage body m g .

[0087] S32, the air conditioning system obtains the surface temperature t of the heat storage body at the time of valve closing. pj Reach room temperature T n The second temperature difference.

[0088] S33, air conditioning system based on the specific heat capacity of the radiator c g and the mass of the heat storage body m g , the product of the second temperature difference, to determine the indoor temperature load c g m g (t pj -T n ) to establish the corresponding relationship between the surface temperature of the heat storage body and the heat storage amount of the heat storage body at the time of valve closing.

[0089] In this way, since the room load Q2 is equal to the heat storage body heat storage Q1 and Q1 = c g m g (t pj -T n ), therefore, the embodiment of the present disclosure obtains the specific heat capacity c of the radiator g and heat storage mass m g , and obtain the surface temperature t of the heat storage body at the time of valve closing pj Reach room temperature T n The second temperature difference. Then according to the specific heat capacity c of the radiator g and heat storage mass m g , the product of the second temperature difference, to determine the indoor temperature load c g m g (t pj -T n ) to construct the corresponding relationship between the surface temperature of the heat storage body and the heat storage capacity of the heat storage body at the time of valve closing to obtain the indoor set temperature T n The surface temperature of the heat storage body when the valve is closed is t pj The corresponding relationship with the heat storage capacity Q1 of the heat storage body.

[0090] Combination Figure 5 As shown, the embodiment of the present disclosure also provides a temperature control method for an air conditioning system, comprising:

[0091] S41, the air conditioning system obtains the corresponding relationship between the time to reach the temperature under the indoor set temperature, the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment. Among them, the time to reach the temperature indicates the time it takes for the indoor temperature to reach the indoor set temperature from the indoor temperature at the time of valve closing.

[0092] S42, the air conditioning system calculates the surface temperature of the heat storage body at the valve closing moment corresponding to different temperature-reaching times at the indoor set temperature and the real-time temperature of the outdoor environment corresponding to different temperature-reaching times according to the set time range corresponding to the temperature-reaching times.

[0093] S43, after calculating the surface temperature of the heat storage body at the valve closing time corresponding to different temperature-reaching times under the indoor set temperature and the real-time temperature of the outdoor environment corresponding to different temperature-reaching times, the air-conditioning system determines the valve closing time corresponding to the temperature-reaching time that meets the indoor temperature conditions as the target valve closing time 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.

[0094] S44, after the air conditioning system determines that the indoor temperature corresponding to the target valve closing time is the target valve closing time indoor temperature, the real-time indoor temperature is obtained.

[0095] S45, 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 a valve closing operation to continue to transfer cold or heat through the heat storage body.

[0096] By using the temperature control method for the air conditioning system provided by the embodiment of the present disclosure, the valve can be closed before the real-time indoor temperature reaches the indoor set temperature, and the cold or heat can continue to be transmitted to the room by relying on the indoor and pipeline heat storage 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 corresponding relationship and the indoor temperature condition, 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 conducive to improving the temperature control accuracy of the indoor temperature and improving the user comfort.

[0097] In addition, since the indoor temperature will continue to rise or fall along the indoor temperature change trend after the valve is closed, the temperature-reaching valve closing method provided by the related art will cause a certain degree of over-heating or over-cooling, resulting in energy waste. When the real-time indoor temperature changes to the indoor temperature at the target valve closing time, the real-time indoor temperature does not reach the indoor set temperature. The disclosed embodiment can rely on the indoor and pipeline heat storage to continue to transmit cold or heat to the room until the real-time indoor temperature reaches the indoor set temperature before the real-time indoor temperature reaches the indoor set temperature, which is conducive to energy saving.

[0098] In practical applications, the temperature control method for the air conditioning system specifically performs the following steps:

[0099] Step S101, obtaining the volume V of the thermal storage body g , density ρ g , Radiator specific heat capacity c g , indoor air specific heat capacity c a , indoor air density ρ a , room volume V a The real-time temperature of the outdoor environment is obtained through the temperature sensor. w and real-time indoor temperature, as well as the heat transfer coefficient K of the enclosure structure and the area F of the enclosure structure, and the real-time surface temperature t pj .

[0100] Step S102, the preset temperature reaching time is in the range of [0,4h].

[0101] Step S103, iterative calculation, the temperature reaching time τ is brought into the set time range item by item Calculate the real-time heat storage body surface temperature t measured at the current time pj and real-time indoor temperature, after closing the valve, calculate the real-time indoor temperature and indoor set temperature T n Are they equal? g =ρ g Vg ,m a =ρ a V a .

[0102] If they are equal, the real-time indoor temperature is equal to the indoor set temperature T n The current time under the same conditions is the target valve closing time. At the same time, the indoor temperature corresponding to the target valve closing time is the indoor temperature at the target valve closing time.

[0103] 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 continue to transfer heat through the heat storage body, and the indoor temperature gradually rises and finally reaches the indoor set temperature T n .

[0104] Combination Figure 6 As shown, the embodiment of the present 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 also include a communication interface 702 and a bus 703. Among them, the processor 700, the communication interface 702, and the memory 701 can communicate with each other through the bus 703. The communication interface 702 can be used for information transmission. The processor 700 can call the logic instructions in the memory 701 to execute the temperature control method for the air-conditioning system of the above embodiment.

[0105] In addition, the logic instructions in the memory 701 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0106] The memory 701 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 700 executes the functional application and data processing by running the program instructions / modules stored in the memory 701, that is, the temperature control method for the air conditioning system in the above embodiment is implemented.

[0107] The memory 701 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 701 may include a high-speed random access memory and may also include a non-volatile memory.

[0108] The disclosed embodiment provides an air-conditioning system, including: a product body, and the above-mentioned temperature control device 70 for the air-conditioning system. The temperature control device 70 for the air-conditioning system is installed in the air-conditioning system body. The installation relationship described here 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, etc. Those skilled in the art can understand that the temperature control device 70 for the air-conditioning system can be adapted to a feasible air-conditioning system body, thereby realizing other feasible embodiments.

[0109] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the temperature control method for an air-conditioning system.

[0110] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, such as: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes.

[0111] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0112] Those skilled in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0113] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0114] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by 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 corresponding relationship between the time to reach the temperature under the indoor set temperature, the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment; wherein the time to reach the temperature indicates the time it takes for the indoor temperature to reach the indoor set temperature from the indoor temperature at the time of valve closing; According to the set time range corresponding to the temperature reaching time, calculate the heat storage body surface temperature at the valve closing time corresponding to different temperature reaching time under the indoor set temperature and the outdoor environment real-time temperature corresponding to different temperature reaching time; After calculating the surface temperature of the heat storage body at the valve closing time corresponding to different temperature-reaching times under the indoor set temperature and the real-time temperature of the outdoor environment corresponding to different temperature-reaching times, the valve closing time corresponding to the temperature-reaching time that meets the indoor temperature conditions is determined as the target valve closing time based on the corresponding relationship, 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 corresponding relationship between the time to reach the temperature and the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment under the indoor set temperature, including: Obtain the corresponding relationship between the surface temperature of the heat storage body and the heat storage amount of the heat storage body at the time of valve closing; Obtain the corresponding relationship between the outdoor environment real-time temperature and the time to reach the temperature under the indoor set temperature and the outdoor environmental load; Obtain the corresponding relationship between the indoor temperature and the indoor temperature load at the time of valve closing at the indoor set temperature; Based on the relationship between the sum of the outdoor environmental load and the indoor temperature load and the heat storage of the heat storage body, a correspondence is established between the temperature reaching time and the indoor temperature at the time of valve closing, the surface temperature of the heat storage body at the time of valve closing, and the real-time temperature of the outdoor environment at the set indoor temperature.

3. The method according to claim 2, characterized in that The relationship between the sum of the outdoor environmental load and the indoor temperature load and the heat storage capacity of the thermal storage body includes: The heat storage capacity of the thermal storage body 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 corresponding relationship between the indoor temperature and the indoor temperature load at the time of valve closing at the indoor set temperature, obtain the indoor air specific heat capacity c a and indoor air quality m a ; Get the indoor temperature from the indoor temperature at the time of valve closing t' n Reach room temperature T n A first temperature difference; According to the specific heat capacity of indoor air c a and indoor air quality a , the product of the first temperature difference, to determine the indoor temperature load c a m a (T n -t' n ) to establish the corresponding relationship between the indoor temperature at the time of valve closing at the indoor set temperature and the indoor temperature load.

5. The method according to claim 2, characterized in that: Also includes: Before obtaining the corresponding relationship between the indoor temperature and the indoor temperature load at the time of closing the valve at the indoor set temperature, obtain the heat transfer coefficient K of the enclosure structure and the area F of the enclosure structure, and the real-time temperature t of the outdoor environment w ; based on The outdoor environmental load is obtained to construct the corresponding relationship between the real-time outdoor environmental temperature and the time to reach the temperature under the indoor set temperature and the outdoor environmental load.

6. The method according to claim 2, characterized in that Also includes: Before obtaining the corresponding relationship between the indoor temperature and the indoor temperature load at the time of valve closing at the indoor set temperature, obtain the specific heat capacity c of the radiator g and heat storage mass m g ; Get the surface temperature t of the heat storage body at the time of valve closing pj Reach room temperature T n A second temperature difference; According to the specific heat capacity of the radiator c g and heat storage mass m g , the product of the second temperature difference, to determine the indoor temperature load c g m g (t pj -T n ) to establish the corresponding relationship between the surface temperature of the heat storage body and the heat storage amount of the heat storage body at the time of valve closing.

7. The method according to any one of claims 1 to 6, characterized in that: Also includes: After determining that the indoor temperature corresponding to the target valve closing time is 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 perform a valve closing operation to continue to transfer cold or heat through the heat storage body.

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 the temperature control method for an air-conditioning system according to any one of claims 1 to 7 when running the program instructions.

9. An air conditioning system, characterized in that: include: Air conditioning system body; The temperature control device for an air conditioning system as claimed 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, the computer is used to execute the temperature control method for an air-conditioning system according to any one of claims 1 to 7.

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