Air conditioning system and control method and device thereof

Abstract

The present application discloses an air conditioning system and a control method and device thereof, wherein the air conditioning system comprises at least one condenser air duct, wherein the at least one condenser air duct is connected to the air outlet of the condenser; and at least one evaporator air duct, wherein the at least one evaporator air duct is connected to the air outlet of the evaporator, wherein the at least one evaporator air duct is arranged crosswise with the at least one condenser air duct to form at least one cross node, wherein the cross node is used to mix a first air volume delivered by the evaporator air duct and a second air volume delivered by the condenser air duct to obtain a mixed air volume, and the mixed air volume is discharged from the air conditioning system. The technical solution of the present application can improve the rationality of cooling or heating of the air conditioning system.

Description

Technical Field

[0001] The present application belongs to the technical field of air conditioning system control, and in particular, relates to an air conditioning system and a control method and device thereof. Background Art

[0002] At present, in some large indoor spaces such as shopping malls and exhibition halls, it is generally necessary to set up air outlets of the air conditioning system separately at various locations. In air conditioning systems with multiple air outlets, in order to control the temperature of different air outlets, valve bodies are usually set at each air outlet, and the temperature of the air outlet is controlled by controlling the opening of the valve body. However, when the valve opening is adjusted too large, the user will feel too cold or too hot. When the valve opening is adjusted too small, the air volume will become smaller, which seriously affects the accuracy of temperature control and thus affects the comfort of user experience. Based on this, how to improve the rationality of cooling or heating of the air conditioning system is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The embodiments of the present application provide an air-conditioning system and a control method and device thereof, thereby being able to improve the rationality of cooling or heating of the air-conditioning system.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0005] According to a first aspect of an embodiment of the present application, an air-conditioning system is provided, which includes at least one condenser air duct, wherein the at least one condenser air duct is connected to an air outlet of the condenser; and at least one evaporator air duct, wherein the at least one evaporator air duct is connected to an air outlet of the evaporator, and the at least one evaporator air duct is cross-arranged with the at least one condenser air duct to form at least one intersection node, wherein the intersection node is used to mix a first air volume delivered by the evaporator air duct and a second air volume delivered by the condenser air duct to obtain a mixed air volume, and the mixed air volume is discharged from the air-conditioning system.

[0006] In some embodiments of the present application, based on the aforementioned solution, a first air valve is provided in the intersection node, and the first air valve is used to adjust the flow rate of the first air volume and the flow rate of the second air volume.

[0007] In some embodiments of the present application, based on the aforementioned solution, the system further includes a ventilation duct, which connects the air inlet of the evaporator and the air inlet of the condenser to provide air volume for the evaporator and the condenser.

[0008] In some embodiments of the present application, based on the aforementioned solution, a blowing device is provided in the ventilation duct, and the blowing device is used to provide conveying power for the air volume in the ventilation duct.

[0009] In some embodiments of the present application, based on the aforementioned scheme, the system also includes a return air duct, one end of which is connected to the evaporator duct and the condenser duct, and the other end is connected to the ventilation duct, for inputting the return air output from the evaporator duct and the condenser duct into the ventilation duct.

[0010] In some embodiments of the present application, based on the aforementioned solution, the system further includes a fresh air duct, which is connected to the ventilation duct and is used to input fresh air into the ventilation duct.

[0011] In some embodiments of the present application, based on the aforementioned scheme, the system also includes a return air duct and a fresh air duct, one end of the return air duct is connected to the evaporator duct and the condenser duct, and the other end is connected to the ventilation duct, for inputting the return air output from the evaporator duct and the condenser duct into the ventilation duct; the fresh air duct is connected to the ventilation duct, for inputting fresh air into the ventilation duct, and the ventilation duct; the return air duct, and the connecting position of the fresh air duct are provided with a second air valve, and the second air valve is used to adjust the flow rate of return air input to the ventilation duct, and adjust the flow rate of fresh air input to the ventilation duct.

[0012] In some embodiments of the present application, based on the aforementioned solution, the system further includes a control device, and the control device is used to control the flow rate of the first air volume and the flow rate of the second air volume.

[0013] According to a second aspect of an embodiment of the present application, a method for controlling an air-conditioning system is provided, and the method is applied to the air-conditioning system as described in the first aspect above, and the method includes: obtaining a mixed air volume flow rate and a mixed air volume temperature set for a target intersection node, and the target intersection node is any one of the at least one intersection node; obtaining the temperature of the first air volume and the temperature of the second air volume; calculating the flow rate of the first air volume and the flow rate of the second air volume based on the mixed air volume flow rate, the mixed air volume temperature, the temperature of the first air volume, and the temperature of the second air volume; and controlling the air volume flow rate delivered by the evaporator air duct and the condenser air duct at the target intersection node according to the flow rate of the first air volume and the flow rate of the second air volume.

[0014] In some embodiments of the present application, based on the above solution, the flow rate of the first air volume is calculated according to the following formula:

[0015]

[0016] Among them, M c represents the flow rate of the first air volume; M represents the mixed air volume flow rate; T represents the mixed air volume temperature; T hrepresents the temperature of the second air volume; T c Indicates the temperature of the first air volume.

[0017] In some embodiments of the present application, based on the above solution, the flow rate of the second air volume is calculated according to the following formula:

[0018]

[0019] Among them, M h represents the flow rate of the second air volume; M represents the mixed air volume flow rate; T represents the mixed air volume temperature; T h represents the temperature of the second air volume; T c Indicates the temperature of the first air volume.

[0020] In some embodiments of the present application, based on the aforementioned scheme, a first air valve is provided in the intersection node, and the first air valve is used to adjust the flow rate of the first air volume, and adjust the flow rate of the second air volume, and the air volume flow rate delivered by the evaporator air duct and the condenser air duct at the target intersection node is controlled according to the flow rate of the first air volume and the flow rate of the second air volume, including: calculating the opening of the first air valve according to the flow rate of the first air volume and the flow rate of the second air volume; controlling the air volume flow rate delivered by the evaporator air duct and the condenser air duct at the target intersection node according to the opening of the first air valve.

[0021] According to a third aspect of an embodiment of the present application, an air-conditioning system control device is provided, and the device is arranged in the air-conditioning system as described in the first aspect above, and the device includes: a first acquisition unit, used to acquire the mixed air volume flow rate and the mixed air volume temperature set for a target intersection node, and the target intersection node is any one of the at least one intersection node; a second acquisition unit, used to acquire the temperature of the first air volume and the temperature of the second air volume; a calculation unit, used to calculate the flow rate of the first air volume and the flow rate of the second air volume based on the mixed air volume flow rate, the mixed air volume temperature, the temperature of the first air volume, and the temperature of the second air volume; a control unit, used to control the air volume flow rate delivered by the evaporator air duct and the condenser air duct at the target intersection node according to the flow rate of the first air volume and the flow rate of the second air volume.

[0022] In the present application, at least one condenser air duct and at least one evaporator air duct are arranged in the air conditioning system, and the two are arranged crosswise to form at least one cross node for mixing the first air volume delivered by the evaporator air duct and the second air volume delivered by the condenser air duct, and then the mixed air volume is discharged from the air conditioning system by the cross node. The air volume in the condenser air duct can be compensated for the cold and heat of the air duct in the evaporator air duct. In this way, it is possible to avoid the user's discomfort caused by the low or hot temperature of the indoor space, improve the user experience, and fully improve the utilization rate of cold or heat. In addition, each cross node can be distributed at various positions in the indoor space. By controlling the mixed air volume in different cross nodes differently, the requirements of different spatial areas for different temperatures can be met, thereby improving the rationality of cooling or heating of the air conditioning system.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0025] Figure 1 A schematic diagram showing the principle of an air conditioning system in an embodiment of the present application is shown;

[0026] Figure 2 A schematic diagram showing the principle of a cross node of an air conditioning system in an embodiment of the present application is shown;

[0027] Figure 3 A flow chart of an air conditioning system control method in an embodiment of the present application is shown;

[0028] Figure 4 A detailed flow chart of controlling the air volume flow delivered by the evaporator air duct and the condenser air duct at the target intersection node in an embodiment of the present application is shown;

[0029] Figure 5 A schematic diagram of a module of an air conditioning system control device in an embodiment of the present application is shown;

[0030] Figure 6 A schematic structural diagram of an air conditioning system control device in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0033] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0034] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application 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 objects used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those shown or described.

[0036] In this application, the proposed air conditioning system can be applied to indoor spaces with different temperature requirements in different areas, such as in various rooms in a home, where the required temperatures for the living room, dining room, and bedroom scenes are different; for a living room and dining room integrated apartment, the required temperature for the dining room is usually lower. Another example is in large living rooms, large shopping malls, and exhibition halls, where the space is generally divided into the inner side and the peripheral side. The peripheral side (walls, glass, entrances and exits) has a cold load in winter and a heat load in summer. Therefore, the heating / cooling air required by the air conditioner is different from the inner side. Although the temperature inside does not fluctuate much, different areas may have different personnel densities and equipment densities, and different temperatures must also be set.

[0037] The following will be combined Figure 1 and Figure 2 The air conditioning system proposed in this application will be described.

[0038] See also Figure 1 , showing a schematic diagram of the principle of the air conditioning system in the embodiment of the present application; and referring to Figure 2 , shows a schematic diagram of the principle of the air-conditioning system cross node 105 in an embodiment of the present application.

[0039] First, refer to Figure 1 In the present application, the proposed air-conditioning system includes at least one condenser air duct 104, and the at least one condenser air duct 104 is connected to the air outlet of the condenser 102 (not shown in the figure); at least one evaporator air duct 103, and the at least one evaporator air duct 103 is connected to the air outlet of the evaporator 101 (not shown in the figure). The at least one evaporator air duct 103 is cross-arranged with the at least one condenser air duct 104 to form at least one intersection node 105, and the intersection node 105 is used to mix the first air volume delivered by the evaporator air duct 103 and the second air volume delivered by the condenser air duct 104 to obtain a mixed air volume, and the mixed air volume is discharged from the air-conditioning system.

[0040] In the present application, the proposed air-conditioning system may further include a compressor (not shown in the figure) for cooling or heating the entire air-conditioning system.

[0041] Specifically, in the refrigeration mode, the compressor compresses the low-temperature and low-pressure gaseous refrigerant to obtain a high-temperature and high-pressure gaseous refrigerant, and then the high-temperature and high-pressure gaseous refrigerant flows into the condenser 102 through a four-way valve (not shown in the figure). At this time, with the assistance of the fan, the air flowing through the condenser 102 will absorb the heat in the refrigerant and become high-temperature air that is blown into the condenser air duct 104. At the same time, the high-temperature and high-pressure gaseous refrigerant will become a medium-temperature and high-pressure liquid refrigerant. The medium-temperature and high-pressure liquid refrigerant will obtain a low-temperature and high-pressure liquid refrigerant after further heat exchange. After the low-temperature and high-pressure liquid refrigerant further obtains a low-temperature and low-pressure liquid refrigerant, it flows into the evaporator 101. With the assistance of the fan, the low-temperature and low-pressure liquid refrigerant in the evaporator 101 will absorb the heat of the air and evaporate into a low-temperature and low-pressure gaseous refrigerant, and the air absorbs heat and becomes low-temperature air that is blown into the evaporator air duct 103. Finally, the low-temperature and low-pressure gaseous refrigerant flowing out of the evaporator 101 flows back to the compressor, completing one cycle of the refrigerant between the condenser 102 and the evaporator 101 .

[0042] Furthermore, since a cross node 105 is formed between the evaporator 101 pipe and the condenser 102 pipe, and the cross node 105 can mix the low-temperature air (i.e., the first air volume) delivered by the evaporator air duct 103 and the high-temperature air (i.e., the second air volume) delivered by the condenser air duct 104, mixed air (i.e., mixed air volume) is obtained. It can be understood that heat and cold compensation can be performed between the low-temperature air and the high-temperature air to obtain mixed air with appropriate temperature. Finally, the mixed air is discharged from the air conditioning system and then discharged into the indoor space.

[0043] In cooling mode, if low-temperature air is directly discharged into the indoor space, the temperature of the indoor space may be low, causing discomfort to the user. In the present application, the low-temperature air can be appropriately thermally compensated by the high-temperature air in the condenser air duct 104 before being discharged into the indoor space. In this way, on the one hand, it can avoid the user's discomfort caused by the low temperature of the indoor space, improve the user experience, and on the other hand, it can fully improve the utilization rate of heat.

[0044] In addition, at least one intersection node 105 formed by the intersection of at least one evaporator air duct 103 and at least one condenser air duct 104 proposed in the present application can be distributed at various positions in the indoor space, for example, Figure 1 The air conditioning system shown includes 4 evaporator air ducts 103 and 5 condenser air ducts 104, and the 20 intersection nodes 105 formed therein can be distributed at various positions of the indoor space. By performing different controls on the mixed air in different intersection nodes 105, the requirements of different temperatures in different spatial areas can be met, thereby improving the rationality of cooling or heating of the air conditioning system.

[0045] In the heating mode, the compressor compresses the low-temperature and low-pressure gaseous refrigerant to obtain high-temperature and high-pressure gaseous refrigerant, and then the high-temperature and high-pressure gaseous refrigerant first flows into the evaporator 101. At this time, with the assistance of the fan, the air flowing through the evaporator 101 will absorb the heat in the refrigerant and become high-temperature air to be blown into the evaporator air duct 103. At the same time, the high-temperature and high-pressure gaseous refrigerant will become medium-temperature and high-pressure liquid refrigerant. The medium-temperature and high-pressure liquid refrigerant will obtain low-temperature and high-pressure liquid refrigerant after further heat exchange. After the low-temperature and high-pressure liquid refrigerant further obtains low-temperature and low-pressure liquid refrigerant, it flows into the condenser 102. With the assistance of the fan, the low-temperature and low-pressure liquid refrigerant in the condenser 102 will absorb the heat of the air and become low-temperature and low-pressure gaseous refrigerant, and the air absorbs heat and becomes low-temperature air to be blown into the condenser air duct 104. Finally, the low-temperature and low-pressure gaseous refrigerant flowing out of the condenser 102 flows back to the compressor, completing a cycle of the refrigerant between the condenser 102 and the condenser 102.

[0046] Furthermore, since a cross node 105 is formed between the evaporator 101 pipe and the condenser 102 pipe, and the cross node 105 can mix the high-temperature air (i.e., the first air volume) delivered by the evaporator air duct 103 and the low-temperature air (i.e., the second air volume) delivered by the condenser air duct 104, mixed air (i.e., mixed air volume) can be obtained. It can be understood that the high-temperature air and the low-temperature air can be compensated for heat and cold to obtain mixed air with appropriate temperature. Finally, the mixed air is discharged from the air conditioning system and then discharged into the indoor space.

[0047] In the heating mode, if the high-temperature air is directly discharged into the indoor space, the temperature of the indoor space may be too high, causing discomfort to the user. In the present application, the high-temperature air can be appropriately cold-compensated by the low-temperature air in the condenser air duct 104 before being discharged into the indoor space. In this way, on the one hand, it can avoid the discomfort of the user caused by the high temperature of the indoor space, improve the user experience, and on the other hand, it can fully improve the utilization rate of the cooling capacity.

[0048] In addition, the at least one intersection node 105 formed by the cross-setting of at least one evaporator air duct 103 and at least one condenser air duct 104 proposed in the present application can be distributed at various positions in the indoor space. By performing different controls on the mixed air in different intersection nodes 105, the requirements for different temperatures in different spatial areas can be met, thereby improving the rationality of cooling or heating of the air-conditioning system.

[0049] Continue to refer to Figure 1 and Figure 2 In one embodiment of the present application, a first air valve 106 may be provided in the intersection node 105, and the first air valve 106 is used to adjust the flow rate of the first air volume and the flow rate of the second air volume.

[0050] Specifically, the first air valve 106 can be set as a bidirectional adjustable air intake valve, which has a certain angle in the cold and hot air volumes, and can provide adjustment for changing the air intake angle of the air valve, thereby adjusting the flow rate of the first air volume, and adjusting the flow rate of the second air volume.

[0051] For example, in cooling mode, Figure 2 As shown, in an intersection node 105, by adjusting the first air valve 106, the first air volume flow rate of the low-temperature air in the evaporator air duct 103 delivered to the intersection node 105 is 1 / 3, and the second air volume flow rate of the high-temperature air in the condenser air duct 104 delivered to the intersection node 105 is 2 / 3. Finally, after the first air volume flow rate and the second air volume are mixed at the intersection node 105, the obtained mixed air volume is discharged from the air outlet 112 of the intersection node to the air conditioning system.

[0052] In the present application, by adjusting the flow rate of the first air volume and adjusting the flow rate of the second air volume, the stepless adjustment of the air volume temperature output from the cross node 105 to the indoor space can be achieved, thereby ensuring the accuracy of temperature regulation.

[0053] Continuing with reference to 1, in one embodiment of the present application, the system may include a ventilation duct 107, wherein the ventilation duct 107 connects the air inlet of the evaporator 101 and the air inlet of the condenser 102, and is used to provide air volume for the evaporator 101 and the condenser 102.

[0054] In this embodiment, air volume is provided to the evaporator 101 and the condenser 102 through the ventilation duct 107, so that the orderly delivery of air volume in each duct in the entire air conditioning system can be ensured.

[0055] Continuing with reference to 1, in one embodiment of the present application, a blowing device 111 may be provided in the ventilation duct 107, and the blowing device 111 is used to provide conveying power for the air volume in the ventilation duct 107.

[0056] In this embodiment, the blowing device 111 may be a blower.

[0057] Continuing with reference to 1, in one embodiment of the present application, the system may include a return air duct 108, one end of the return air duct 108 is connected to the evaporator duct 103 and the condenser duct 104, and the other end is connected to the ventilation duct 107, for inputting the return air output from the evaporator duct 103 and the condenser duct 104 into the ventilation duct 107.

[0058] In this embodiment, the return air duct 108 can efficiently recover the air volume in the evaporator air duct 103 and the condenser air duct 104 that is not discharged from the air conditioning system, thereby improving the efficiency of air circulation in the entire indoor space and enhancing the ventilation performance in the indoor space.

[0059] Continuing with reference to 1, in one embodiment of the present application, the system may further include a fresh air duct 109 , wherein the fresh air duct 109 is connected to the ventilation duct 107 and is used to input fresh air into the ventilation duct 107 .

[0060] It should be noted that the system may include only the return air duct, or only the fresh air duct 109 , or may include both the return air duct 108 and the fresh air duct 109 .

[0061] Continuing with reference to 1, in one embodiment of the present application, if the system includes both a return air duct 108 and a fresh air duct 109, the ventilation duct 107, the return air duct 108, and the connecting position of the fresh air duct 109 may be provided with a second air valve 110, and the second air valve 110 is used to adjust the flow rate of the return air input to the ventilation duct 107, and adjust the flow rate of the fresh air input to the ventilation duct 107.

[0062] Specifically, in the present embodiment, the second air valve 110 can also be set as a bidirectionally adjustable air intake valve, which has a certain angle in the return air and the fresh air, and can provide adjustment for changing the air intake angle of the air valve, thereby adjusting the flow rate of the return air input to the ventilation duct 107, and adjusting the flow rate of the fresh air input to the ventilation duct 107.

[0063] The second air valve 110 can be used to conveniently adjust the flow rate of return air and the flow rate of fresh air. For example, when the amount of air that is not discharged from the air conditioning system in the evaporator air duct 103 and the condenser air duct 104 is relatively large, the flow rate of return air can be adjusted less and the flow rate of fresh air can be adjusted more. When the amount of air that is not discharged from the air conditioning system in the evaporator air duct 103 and the condenser air duct 104 is relatively small, the flow rate of return air can be adjusted more and the flow rate of fresh air can be adjusted less. In this way, the efficiency of the entire air duct system can be improved.

[0064] In one embodiment of the present application, the system may further include a control device ( Figure 1 The control device is used to control the flow rate of the first air volume and the flow rate of the second air volume. Specifically, the control device can control the flow rate of the first air volume and the flow rate of the second air volume by controlling the first air valve 106 set at each intersection node 105 according to the needs of the user.

[0065] Next, we will combine Figure 3 The air conditioning system control method proposed in this application is described in detail:

[0066] Figure 3 A flow chart of an air conditioning system control method in an embodiment of the present application is shown. The air conditioning system control method can be applied to Figure 1 The air conditioning system shown in the figure can be specifically executed by a device having a computing and processing function, such as an air conditioning system control device. Figure 3 The method at least includes steps 310 to 370:

[0067] In step 310, a mixed air volume flow rate and a mixed air volume temperature set for a target intersection node are obtained, and the target intersection node is any one of the at least one intersection node.

[0068] In the present application, the mixed air volume flow and mixed air volume temperature discharged from each cross node can be set by the user according to actual needs, or can be intelligently set by the air conditioning system according to historical usage records.

[0069] In step 330, the temperature of the first air volume and the temperature of the second air volume are obtained.

[0070] In the present application, the temperature of the first air volume is the temperature of the air volume output from the evaporator, and the temperature of the second air volume is the temperature of the air volume output from the condenser, which can be detected by a temperature sensor or directly given by the air-conditioning system.

[0071] In step 350 , the flow rate of the first air volume and the flow rate of the second air volume are calculated based on the mixed air volume flow rate, the mixed air volume temperature, the temperature of the first air volume, and the temperature of the second air volume.

[0072] In one embodiment of the present application, the flow rate of the first air volume can be calculated according to the following formula (1):

[0073]

[0074] Among them, M c represents the flow rate of the first air volume; M represents the mixed air volume flow rate; T represents the mixed air volume temperature; T h represents the temperature of the second air volume; T c Indicates the temperature of the first air volume.

[0075] In one embodiment of the present application, the flow rate of the second air volume can be calculated according to the following formula (2):

[0076]

[0077] Among them, M h represents the flow rate of the second air volume; M represents the mixed air volume flow rate; T represents the mixed air volume temperature; T h represents the temperature of the second air volume; T c Indicates the temperature of the first air volume.

[0078] In order to enable those skilled in the art to better understand the above formulas (1) and (2), the specific derivation process is described below:

[0079] First, according to the mixed air flow equal to the sum of the first air flow and the second air flow, formula (3) can be obtained:

[0080] M=M c +Mh (3)

[0081] Then, according to the law of conservation of energy, we can get formula (4):

[0082] M×T×C=M c ×T c ×C+M h ×T h ×C (4)

[0083] Wherein, C represents the specific heat capacity of air. In the present application, it can be considered that the specific heat capacity of air at different temperatures is equal.

[0084] Finally, according to formula (3) and formula (4), formula (1) and formula (2) can be derived.

[0085] In step 370, the air volume flow rate delivered by the evaporator air duct and the condenser air duct at the target intersection node is controlled according to the flow rate of the first air volume and the flow rate of the second air volume.

[0086] In one embodiment of the present application, a first air valve is provided in the intersection node, and the first air valve is used to adjust the flow rate of the first air volume and the flow rate of the second air volume. Figure 3 Step 370 shown may be performed as follows Figure 4 Follow the steps shown.

[0087] See also Figure 4 , shows a detailed flow chart of controlling the air volume flow delivered by the evaporator air duct and the condenser air duct at the target intersection node in an embodiment of the present application. Specifically including steps 371 to 372:

[0088] Step 371, calculating the opening of the first air valve according to the flow rate of the first air volume and the flow rate of the second air volume.

[0089] Step 372: Control the air volume flow delivered by the evaporator air duct and the condenser air duct at the target intersection node according to the opening degree of the first air valve.

[0090] In order to make those skilled in the art better understand the present application, Figure 1 , described with a specific embodiment.

[0091] exist Figure 1 The air conditioning system shown in the figure includes 4 evaporator air ducts and 5 condenser air ducts, and the 20 cross nodes formed therein can be distributed in various positions of the indoor space. Each cross node is a node that can adjust ventilation and temperature.

[0092] For example, in the cooling mode, the temperature of the cold air volume (i.e., the first air volume) output from the evaporator outlet is 5°C, and the temperature of the hot air volume (i.e., the second air volume) output from the condenser outlet is 60°C. At the target intersection node (which can be any intersection node), the first air valve controls the cold and hot air volumes to enter the target intersection node, and the mixed air volume is discharged from the air conditioning system, wherein the temperature of the mixed air volume is T (which can be preset), and the flow rate of the mixed air volume is M (which can be preset). At this time, the cold air delivery flow rate calculated by the above formula (1) is:

[0093]

[0094] The hot air flow rate calculated by the above formula (2) is:

[0095]

[0096] In the present application, the relationship between the air intake angle and the air intake volume of the first air valve can be obtained based on the measured data, and then the air intake angle of the first air valve can be interpolated to query. After calculating the delivery flow rate of the cold air volume and the delivery flow rate of the hot air volume, the delivery flow rate of the cold air volume and the delivery flow rate of the hot air volume are adjusted by changing the air intake angle of the first air valve, thereby achieving air volume temperature regulation and air volume flow regulation of the target intersection node.

[0097] In the present application, it can be understood that by adjusting the flow rate of the cold air volume and adjusting the flow rate of the hot air volume, it is possible to achieve stepless regulation of the temperature of the air volume output from the cross node to the indoor space (i.e., to achieve stepless regulation between the temperature of the first air volume and the temperature of the first air volume), thereby ensuring the accuracy of temperature regulation and improving the convenience and efficiency of temperature regulation.

[0098] It can be seen that in the present application, at least one condenser air duct and at least one evaporator air duct are arranged in the air conditioning system, and the two are cross-arranged to form at least one cross node for mixing the first air volume delivered by the evaporator air duct and the second air volume delivered by the condenser air duct, and then the mixed air volume is discharged from the air conditioning system by the cross node. The air volume in the condenser air duct can be compensated for the air volume in the evaporator air duct. In this way, it can avoid the user's discomfort caused by the low or hot temperature in the indoor space, improve the user experience, and fully improve the utilization rate of cold or heat. In addition, each cross node can be distributed at various positions in the indoor space. By controlling the mixed air volume in different cross nodes differently, the requirements of different spatial areas for different temperatures can be met, thereby improving the rationality of cooling or heating of the air conditioning system.

[0099] The following describes an embodiment of the device of the present application, which can be used to execute the air conditioning system control method in the above embodiment of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the air conditioning system control method in the above embodiment of the present application.

[0100] See also Figure 5 , shows a module schematic diagram of the air-conditioning system control device in an embodiment of the present application.

[0101] like Figure 5 As shown, the air conditioning system control device 500 according to the embodiment of the present application can be arranged in the air conditioning system as described above, including: a first acquisition unit 501, a second acquisition unit 502, a calculation unit 503 and a control unit 504.

[0102] Among them, the first acquisition unit 501 is used to obtain the mixed air volume flow rate and the mixed air volume temperature set for the target intersection node, and the target intersection node is any one of the at least one intersection node; the second acquisition unit 502 is used to obtain the temperature of the first air volume and the temperature of the second air volume; the calculation unit 503 is used to calculate the flow rate of the first air volume and the flow rate of the second air volume based on the mixed air volume flow rate, the mixed air volume temperature, the temperature of the first air volume, and the temperature of the second air volume; the control unit 504 is used to control the air volume flow rate delivered by the evaporator air duct and the condenser air duct at the target intersection node according to the flow rate of the first air volume and the flow rate of the second air volume.

[0103] Figure 6 A schematic structural diagram of an air conditioning system control device in an embodiment of the present application is shown.

[0104] Based on the same inventive concept, the embodiment of the present application also provides an air conditioning system control device. Figure 6 , shows a schematic diagram of the structure of an air-conditioning system control device in an embodiment of the present application, wherein the air-conditioning system control device includes one or more memories 604, one or more processors 602, and at least one computer program (program code) stored in the memories 604 and executable on the processors 602, and when the processor 602 executes the computer program, the air-conditioning system control method as described above is implemented.

[0105] Among them, Figure 6In the embodiment of the present invention, a bus architecture (represented by bus 600) is shown, which may include any number of interconnected buses and bridges, and bus 600 links various circuits including one or more processors represented by processor 602 and memory represented by memory 604. Bus 600 may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. Bus interface 605 provides an interface between bus 600 and receiver 601 and transmitter 603. Receiver 601 and transmitter 603 may be the same element, namely a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 602 is responsible for managing bus 600 and general processing, while memory 604 may be used to store data used by processor 602 when performing operations.

[0106] In the present application, an air-conditioning system is also proposed, which includes a compressor valve body, a condenser valve body, a plurality of evaporator valve bodies, and an evaporator corresponding to the evaporator valve body one by one, the compressor valve body is used to control the refrigerant flow to the compressor, the condenser valve body is used to control the refrigerant flow to the condenser, and the evaporator valve body is used to control the refrigerant flow to the evaporator, wherein the opening of the compressor valve body, the opening of the condenser valve body and the opening of the evaporator valve body are all controlled by corresponding control interfaces, and the air-conditioning system also includes the following Figure 6 Air conditioning system controls shown.

[0107] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on a computer-readable medium or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these. In addition, each functional unit may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit.

[0108] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0109] The units described as separate components may or may not be physically separated, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed in multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0110] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0111] The above description is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. An air conditioning system, characterized in that: The air conditioning system comprises: At least one condenser air duct, wherein the at least one condenser air duct is connected to an air outlet of the condenser; At least one evaporator air duct, the at least one evaporator air duct is connected to the air outlet of the evaporator, the at least one evaporator air duct is cross-arranged with the at least one condenser air duct, each of the evaporator air duct is cross-arranged with all of the condenser air ducts, each of the condenser air ducts is cross-arranged with all of the evaporator air ducts to form at least one intersection node, the at least one intersection node is used to be distributed at various positions in the indoor space, the intersection node is used to mix a first air volume delivered by the evaporator air duct and a second air volume delivered by the condenser air duct to obtain a mixed air volume, and the mixed air volume is discharged from the air conditioning system; In cooling mode or heating mode, the refrigerant in the air conditioning system circulates between the condenser and the evaporator; The air conditioning system further comprises a compressor, and the compressor is used to provide cooling or heating for the air conditioning system; Wherein, in the refrigeration mode, the compressor compresses the low-temperature and low-pressure gaseous refrigerant to obtain a high-temperature and high-pressure gaseous refrigerant, and the high-temperature and high-pressure gaseous refrigerant flows into the condenser, and the air flowing through the condenser absorbs the heat in the refrigerant and becomes high-temperature air and is blown into the condenser air duct. At the same time, the high-temperature and high-pressure gaseous refrigerant becomes a medium-temperature and high-pressure liquid refrigerant, and the medium-temperature and high-pressure liquid refrigerant obtains a low-temperature and high-pressure liquid refrigerant after further heat exchange. After the low-temperature and high-pressure liquid refrigerant further obtains a low-temperature and low-pressure liquid refrigerant, it flows into the evaporator, and the low-temperature and low-pressure liquid refrigerant in the evaporator absorbs the heat of the air and evaporates into a low-temperature and low-pressure gaseous refrigerant, and the air absorbs the heat and becomes low-temperature air and is blown into the evaporator air duct. The low-temperature and low-pressure gaseous refrigerant flowing out of the evaporator flows back to the compressor, completing a cycle of the refrigerant between the condenser and the evaporator; Among them, in the heating mode, the compressor compresses the low-temperature and low-pressure gaseous refrigerant to obtain high-temperature and high-pressure gaseous refrigerant, and the high-temperature and high-pressure gaseous refrigerant flows into the evaporator. The air flowing through the evaporator absorbs the heat in the refrigerant and becomes high-temperature air to be blown into the evaporator air duct. At the same time, the high-temperature and high-pressure gaseous refrigerant will become medium-temperature and high-pressure liquid refrigerant. The medium-temperature and high-pressure liquid refrigerant obtains low-temperature and high-pressure liquid refrigerant after further heat exchange. The low-temperature and high-pressure liquid refrigerant further obtains low-temperature and low-pressure liquid refrigerant and flows into the condenser. The low-temperature and low-pressure liquid refrigerant in the condenser will absorb the heat of the air and become low-temperature and low-pressure gaseous refrigerant, and the air absorbs the heat and becomes low-temperature air to be blown into the condenser air duct. The low-temperature and low-pressure gaseous refrigerant flowing out of the condenser flows back to the compressor, completing a cycle of the refrigerant between the condenser and the condenser.

2. The system according to claim 1, characterized in that A first air valve is provided in the intersection node, and the first air valve is used to adjust the flow rate of the first air volume and the flow rate of the second air volume.

3. The system according to claim 1, characterized in that The system further comprises a ventilation duct, wherein the ventilation duct is connected to an air inlet of the evaporator and an air inlet of the condenser, and is used for providing air volume for the evaporator and the condenser.

4. The system according to claim 3, characterized in that A blower is provided in the ventilation duct, and the blower is used to provide conveying power for the air volume in the ventilation duct.

5. The system according to claim 3, characterized in that The system also includes a return air duct, one end of which is connected to the evaporator duct and the condenser duct, and the other end of which is connected to the ventilation duct, for inputting the return air output from the evaporator duct and the condenser duct into the ventilation duct.

6. The system according to claim 3, characterized in that The system further comprises a fresh air duct, which is connected to the ventilation duct and is used for inputting fresh air into the ventilation duct.

7. The system according to claim 3, characterized in that The system also includes a return air duct and a fresh air duct, one end of the return air duct is connected to the evaporator duct and the condenser duct, and the other end is connected to the ventilation duct, for inputting the return air output from the evaporator duct and the condenser duct into the ventilation duct; the fresh air duct is connected to the ventilation duct, for inputting fresh air into the ventilation duct, and the ventilation duct; the return air duct and the fresh air duct are connected at a position provided with a second air valve, and the second air valve is used to adjust the flow rate of return air input to the ventilation duct, and to adjust the flow rate of fresh air input to the ventilation duct.

8. The system according to any one of claims 1 to 7, characterized in that: The system further includes a control device, which is used to control the flow rate of the first air volume and the flow rate of the second air volume.

9. A method for controlling an air conditioning system, characterized in that: The method is applied to the air conditioning system according to any one of claims 1 to 8, and the method comprises: Acquire a mixed air volume flow rate and a mixed air volume temperature set for a target intersection node, wherein the target intersection node is any one of the at least one intersection node; Acquire the temperature of the first air volume and the temperature of the second air volume; Calculating the flow rate of the first air volume and the flow rate of the second air volume based on the mixed air volume flow rate, the mixed air volume temperature, the temperature of the first air volume, and the temperature of the second air volume; The air volume flow rates delivered by the evaporator air duct and the condenser air duct at the target intersection node are controlled according to the flow rates of the first air volume and the second air volume.

10. The method according to claim 9, characterized in that The flow rate of the first air volume is calculated according to the following formula: Among them, M c represents the flow rate of the first air volume; M represents the mixed air volume flow rate; T represents the mixed air volume temperature; T h represents the temperature of the second air volume; T c Indicates the temperature of the first air volume.

11. The method according to claim 9, characterized in that The flow rate of the second air volume is calculated according to the following formula: Among them, M h represents the flow rate of the second air volume; M represents the mixed air volume flow rate; T represents the mixed air volume temperature; T h represents the temperature of the second air volume; T c Indicates the temperature of the first air volume.

12. The method according to claim 9, characterized in that A first air valve is provided in the intersection node, and the first air valve is used to adjust the flow rate of the first air volume and the flow rate of the second air volume. According to the flow rate of the first air volume and the flow rate of the second air volume, the air volume flow rate delivered by the evaporator air duct and the condenser air duct at the target intersection node is controlled, including: Calculating the opening of the first air valve according to the flow rate of the first air volume and the flow rate of the second air volume; According to the opening degree of the first air valve, the air volume flow delivered by the evaporator air duct and the condenser air duct at the target intersection node is controlled.

13. An air conditioning system control device, characterized in that: The device is provided in the air conditioning system according to any one of claims 1 to 8, and the device comprises: A first acquisition unit is used to acquire a mixed air volume flow rate and a mixed air volume temperature set for a target intersection node, wherein the target intersection node is any one of the at least one intersection node; A second acquisition unit is used to acquire the temperature of the first air volume and the temperature of the second air volume; a calculation unit, configured to calculate a flow rate of the first air volume and a flow rate of the second air volume based on the mixed air volume flow rate, the mixed air volume temperature, the temperature of the first air volume, and the temperature of the second air volume; The control unit is used to control the air volume flow rate delivered by the evaporator air duct and the condenser air duct at the target intersection node according to the flow rate of the first air volume and the flow rate of the second air volume.

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