Phase change temperature control module, building air conditioning system and control method of phase change temperature control module

Abstract

This application relates to a phase-change temperature control module, a building air conditioning system, and a control method for the phase-change temperature control module, comprising: at least two phase-change temperature control modules connected in series, each phase-change temperature control module comprising a phase-change device branch air path and a bypass branch air path connected in parallel; each branch air path is provided with a damper; the phase-change device branch air path refers to an air path provided with a phase-change device; and the phase change points of the phase-change devices in each phase-change temperature control module group decrease sequentially along the air path direction. The technical solution provided by this application is unaffected by climate or season and can conveniently adjust the temperature, thereby achieving the effect of expanding the scope of application.

Description

Technical Field

[0001] The present application relates to the field of smart building energy-saving control technology, and in particular to a phase change temperature control module, a building air-conditioning system, and a control method for the phase change temperature control module. Background Art

[0002] my country is the world's largest energy consumer, with low energy utilization and significant energy waste. Therefore, energy conservation and emission reduction are crucial for advancing scientific development. Currently, most cities have numerous buildings, so energy conservation and control in these buildings is a crucial step in achieving this goal.

[0003] At present, energy storage equipment in buildings is generally made of single phase change point materials with a fixed phase change temperature. Therefore, its usage scenarios are seriously affected by climate or seasons, resulting in the inability to expand its scope of application and difficulty in controlling its output temperature, resulting in energy waste. Summary of the Invention

[0004] In view of this, the main purpose of this application is to provide a phase change temperature control module, a building air conditioning system and a control method for the phase change temperature control module, which can conveniently adjust the output temperature without being affected by climate or season, so as to achieve the effect of expanding the scope of application and energy saving.

[0005] The present application provides a phase change temperature control module, comprising:

[0006] At least two phase-change temperature control modules are connected in series in the air path, each phase-change temperature control module includes a phase-change device branch air path and a bypass branch air path connected in parallel; each branch air path is provided with an air valve; the phase-change device branch air path refers to the air path provided with the phase-change device;

[0007] The phase change points of the phase change devices in each group of phase change temperature control modules decrease in sequence along the direction of the air path.

[0008] As mentioned above, by using temperature control modules with different phase transition points at different heights of the equipment, the temperature can be adjusted in gradients to achieve energy conservation. By installing air valves on each branch, the presence and size of the air volume in the corresponding branch can be controlled.

[0009] As an implementation of the first aspect, among the groups of phase-change temperature control modules arranged along the air path, at least the first group of phase-change temperature control modules is provided with a heating module capable of heating its phase-change device.

[0010] As described above, by setting a heating module in the phase change temperature control module to heat its phase change device, the heating module can be used to actively restore the phase change device when the external temperature is too low so that the phase change device cannot automatically restore its state.

[0011] As an implementation of the first aspect, a temperature detection module and an air volume detection module are provided at the position where the air paths of each group of phase change temperature control modules are connected in series, and / or at each branch air path.

[0012] As described above, by setting the temperature detection module and the air volume detection module at different positions of the phase change temperature control module, the temperature and air volume at the set positions can be measured in real time.

[0013] A building air conditioning system including the above-mentioned phase change temperature control module, the building air conditioning system includes an air supply outlet and a return air outlet connected to the room, and a fresh air outlet connected to the outside. The air is driven by a fan from the fresh air outlet and / or the return air outlet into the air duct and is sent out from the air supply outlet. The phase change temperature control module is connected in series in the air duct.

[0014] As described above, the building air conditioning system provided, by connecting the phase change thermostat module in series in the air duct, can give priority to using the phase change thermostat module to change the output temperature of the system during cooling or heating, which greatly saves energy and achieves a good energy-saving effect.

[0015] As an implementation of the second aspect, an indoor fan coil air supply branch pipe is provided between the return air outlet connected to the room and the input end of the phase change temperature control module.

[0016] From the above, by arranging an indoor fan coil supply air branch between the indoor return air outlet and the input end of the phase change temperature control module, it can be ensured that when the phase change temperature control module is not sufficient to reach the required temperature, the return air is cooled or heated through the fan coil supply air branch to ensure the normal operation of the air-conditioning system.

[0017] As an implementation of the second aspect, a fresh air unit is provided between the indoor air supply outlet and the outdoor fresh air outlet.

[0018] From the above, by arranging a fresh air unit between the indoor air supply outlet and the fresh air outlet connected to the outside, it can be ensured that when the phase change temperature control module is not enough to reach the required temperature, the fresh air is cooled or heated through the fan coil air supply branch pipe to ensure the normal operation of the air-conditioning system.

[0019] As an implementation of the second aspect, the phase change point temperature T of the phase change device in the first group of phase change temperature control modules arranged along the air path is determined as follows: pcm1 :

[0020]

[0021] Among them, Ω is the number of days in a year when the maximum temperature is greater than the preset temperature, |Ω| is the size of the set, T i min is the lowest temperature on the i-th day of the year, ΔT is the temperature adjustment coefficient, and the adjustment range is ±5℃.

[0022] As an implementation of the second aspect, the phase change point temperature T of the phase change device in the last group of phase change temperature control modules arranged along the air path is determined as follows: pcmn :

[0023] T pcmn =[T comf -(T n -T o )]+ΔT

[0024] Among them, T comf is the preset temperature, T n is the air supply temperature of the air supply outlet connected to the room, T o is the return air temperature of the return air outlet connected to the room, ΔT is the temperature adjustment coefficient, and the adjustment range is ±5℃.

[0025] As described above, a method for calculating the phase change point temperature of the phase change device in the phase change temperature control module is provided. This method can make the phase change point temperature of the selected phase change device more appropriate, thereby achieving energy saving effect.

[0026] A temperature control method based on the above-mentioned phase change temperature control module, the method comprising:

[0027] The opening and closing states of the air valves in each branch air path are determined according to the working state of the phase change temperature control module, the equivalent of the phase change device in the phase change temperature control module, and the relationship between the outdoor temperature and the phase change temperature of the phase change device in the phase change temperature control module.

[0028] From the above, by determining the opening and closing states of the air valves in each branch air path according to the various states of the phase change temperature control module, it is possible to prevent excessive consumption of the phase change temperature control module while ensuring the output of the preset temperature, thereby increasing the life of the phase change temperature control module.

[0029] As an implementation method of the third aspect, when the working state of the phase change temperature control module is the cooling state, the equivalent of the phase change devices in each phase change temperature control module is sufficient, and the outdoor temperature is higher than the phase change temperature of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction: the air valve of the phase change device branch air path in each phase change temperature control module is controlled to open, and the air valve of the bypass branch air path in each phase change temperature control module is controlled to close.

[0030] As an implementation method of the third aspect, when the working state of the phase change temperature control module is the cooling state, the equivalent of the phase change devices in each of the phase change temperature control modules is sufficient, and the outdoor temperature is lower than the phase change temperature of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction and higher than the temperature of the phase change devices in other phase change temperature control modules: the air valves of the phase change device branch air paths in the other phase change temperature control modules and the air valves of the bypass branch air paths in the first group of phase change temperature control modules arranged along the air path direction are controlled to open, and the air valves of the phase change device branch air paths in the first group of phase change temperature control modules arranged along the air path direction and the air valves of the bypass branch air paths in other phase change temperature control modules are controlled to close.

[0031] As an implementation method of the third aspect, when the working state of the phase change temperature control module is the cooling state, the equivalent of the phase change devices in each phase change temperature control module is sufficient, and the outdoor temperature is lower than the phase change temperature of the phase change devices in the last group of phase change temperature control modules arranged along the air path direction: the air valve of the bypass branch air path in each phase change temperature control module is controlled to open, and the air valve of the phase change device branch air path in each phase change temperature control module is controlled to close.

[0032] As an implementation method of the third aspect, when the working state of the phase change temperature control module is a cooling state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction is insufficient, the equivalent of the phase change devices in the other phase change temperature control modules is sufficient, and the outdoor temperature is higher than the phase change temperature of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction: the air valves of the bypass branch air path in the first group of phase change temperature control modules along the air path direction and the air valves of the phase change device branch air path in other phase change temperature control modules are controlled to open, and the air valves of the phase change device branch air path in the first group of phase change temperature control modules and the air valves of the bypass branch air path in other phase change temperature control modules are controlled to close.

[0033] As an implementation method of the third aspect, when the working state of the phase change temperature control module is a cooling state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path is insufficient, the equivalent of the phase change devices in the other phase change temperature control modules is sufficient, and the outdoor temperature is lower than the phase change temperature of the phase change devices in the first group of phase change temperature control modules arranged along the air path and higher than the phase change temperature of the phase change devices in the other phase change temperature control modules: the air valves of the bypass branch air path in the first group of phase change temperature control modules along the air path and the air valves of the phase change device branch air path in other phase change temperature control modules are controlled to open, and the air valves of the phase change device branch air path in the first group of phase change temperature control modules and the air valves of the bypass branch air path in other phase change temperature control modules are controlled to close.

[0034] As an implementation method of the third aspect, when the working state of the phase change temperature control module is a cooling state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path is insufficient, the equivalent of the phase change devices in the remaining phase change temperature control modules is sufficient, and the outdoor temperature is lower than the phase change temperature of the phase change devices in the other phase change temperature control modules arranged along the air path: the air valve of the bypass branch air path in each of the phase change temperature control modules is controlled to open, and the air valve of the phase change device branch air path in each of the phase change temperature control modules is controlled to close.

[0035] As an implementation of the third aspect, when the working state of the phase change temperature control module is the cooling state and the equivalent of the phase change devices in each phase change temperature control module is insufficient: all air valves in the phase change temperature control module are controlled to be closed.

[0036] As an implementation method of the third aspect, when the working state of the phase change temperature control module is a heating state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction is sufficient, and the outdoor temperature is lower than the preset temperature: the air valves of the phase change device branch air paths in the first group of phase change temperature control modules along the air path direction and the air valves of the bypass branch air paths in other phase change temperature control modules are controlled to be opened, and the air valves of the bypass branch air paths in the first group of phase change temperature control modules along the air path direction and the air valves of the phase change device branch air paths in other phase change temperature control modules are controlled to be closed;

[0037] The preset temperature is lower than the phase change temperature of the phase change devices in the first group of phase change temperature control modules arranged along the air path.

[0038] As an implementation method of the third aspect, when the working state of the phase change temperature control module is the heating state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction is sufficient, and the outdoor temperature is higher than the preset temperature and lower than the phase change temperature of the phase change devices in the first group of phase change temperature control modules along the air path direction: the air valves of the phase change device branch air paths in the first group of phase change temperature control modules along the air path direction and the air valves of the bypass branch air paths in other phase change temperature control modules are controlled to open, and the air valves of the bypass branch air paths in the first group of phase change temperature control modules along the air path direction and the air valves of the phase change device branch air paths in other phase change temperature control modules are controlled to close.

[0039] As an implementation method of the third aspect, when the working state of the phase change temperature control module is the heating state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path is sufficient, and the outdoor temperature is higher than the phase change temperature of the phase change devices in the first group of phase change temperature control modules along the air path: the air valve of the bypass branch air path in each phase change temperature control module is controlled to open, and the air valve of the phase change device branch air path in each phase change temperature control module is controlled to close.

[0040] As an implementation method of the third aspect, when the working state of the phase change temperature control module is the heating state and the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction is insufficient: all air valves in the phase change temperature control module are controlled to be closed.

[0041] From the above, the opening and closing states of the air valves of each branch air path are provided when the working state of the phase change temperature control module is cooling or heating, whether the equivalent of the phase change device in the phase change temperature control module is sufficient, and the relationship between the outdoor temperature and the phase change point temperature of the phase change device are different, so as to achieve maximum energy saving effect.

[0042] In summary, this application solves the following problems: while maintaining the indoor temperature, cooling or heating can be achieved by controlling the status of the air valves in each branch airway according to the real-time status of the phase-change temperature control module, ensuring that temperature regulation is not affected by climate or season, thus expanding its scope of application. Furthermore, by providing a phase-change temperature control module with multiple phase-change points, temperature regulation can be diversified, achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of the structure of a phase change temperature control module provided in an embodiment of the present application;

[0044] Figure 2 A schematic structural diagram of a building air conditioning system including a phase change temperature control module provided in an embodiment of the present application;

[0045] Figure 3 A schematic structural diagram of a specific implementation of a building air-conditioning system based on a phase change temperature control module provided in an embodiment of the present application;

[0046] Figure 4 A schematic diagram of the structure of a computing device provided in an embodiment of the present application.

[0047] 100-phase change temperature control module, 110-phase change temperature control module, 200-air supply module, 300-air conditioning system, 310-fresh air unit, 320-return air unit, 400-indoor exhaust module, 500-return air branch DETAILED DESCRIPTION

[0048] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive disclosure of the present application.

[0049] In the following description, the terms "first\second\third, etc." or module A, module B, module C, etc. are only used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0051] Currently, energy storage devices in buildings typically use materials with a single phase change point at the source. Consequently, these devices often require a large footprint, are inconvenient to install, and have a fixed phase change temperature. To address these issues, the present application provides a phase change thermostat module. The phase change thermostat module in this application can be located at the terminal and distributed throughout the building.

[0052] [Implementation of Phase Change Temperature Control Module]

[0053] like Figure 1 As shown, a phase change temperature control module 100 provided in this embodiment. The phase change temperature control module 100 includes at least two groups of phase change temperature control modules 110 connected in series. Each group of phase change temperature control modules 110 includes a phase change device branch airway and a bypass branch airway connected in parallel. Each branch airway is provided with an air valve (P2, P3, P4, and P5 in the figure). The air volume and temperature of the air passing through the branch airway can be controlled by controlling the open and closed state, or the open and closed degree, of the air valve in each branch airway. Among them, the phase change temperature control device branch airway refers to the airway provided with a phase change device. In this embodiment, the phase change material can be selected according to the phase change point of the phase change temperature control device. The phase change point of the phase change device in each group of phase change temperature control modules decreases successively along the direction of the airway. That is, the phase change point of the first group of phase change devices is higher than the phase change point of the second group of phase change devices, and so on.

[0054] This embodiment uses two groups of phase change temperature control modules as an example to illustrate the selection method of each phase change material. Assume that the indoor comfortable temperature range is [T1, T2], the outdoor average temperature during the day in summer is T3, the outdoor average temperature during the night in summer is T4, the outdoor average temperature during the day in winter is T5, and the outdoor average temperature during the night in winter is T6. Under this working condition, the default is T3>T4>T5>T6. The lower limit T1min of the phase change point of the phase change device in the first group of phase change temperature control modules along the air path is the larger value of the outdoor average temperature during the day in winter T5 and the indoor comfortable temperature T1, that is, T1min=MAX[T1,T5]. Therefore, the phase change temperature selection range of the phase change point of the phase change device in the first group of phase change temperature control modules along the air path is greater than T1min. The lower limit T2min of the phase change point of the phase change devices in the second group of phase change temperature control modules along the air path is the average outdoor summer night temperature (T4), and the upper limit is the smaller value of the maximum indoor comfort temperature range (T2) and the average outdoor summer daytime temperature (T3), that is, T2max = MIN[T2, T3]. Therefore, the phase change temperature range of the phase change points of the phase change devices in the second group of phase change temperature control modules along the air path is [T2min, T2max]. Preferably, in this embodiment, the phase change point of the phase change devices in the first group of phase change temperature control modules along the air path is 24°C, and the phase change point of the phase change devices in the second group of phase change temperature control modules along the air path is 18°C. In this embodiment, in addition to considering the phase change point temperature of the phase change device, the power of the phase change device can also be considered. In practical applications, the power of the phase change device can be selected through theoretical calculations, load calculation software, and / or energy consumption module software.

[0055] In this embodiment, among the phase change temperature control modules arranged along the air path, at least the first phase change temperature control module is provided with a heating module capable of heating its phase change device. Figure 1 As shown, this embodiment couples a thermal resistor with a phase change device, utilizing the thermal resistor to heat the coupled phase change device. Since a 24°C high-temperature phase change material cannot provide sufficient heat for automatic recovery when heated at a lower temperature, to address this issue, this embodiment couples the phase change devices in at least the first group of phase change temperature control modules with a thermal resistor, thereby achieving active recovery of the phase change material through heating with the thermal resistor. Whether the phase change devices in other groups of phase change temperature control modules are coupled with thermal resistors can be determined based on the phase change temperature of the phase change device and the ambient temperature during actual use.

[0056] like Figure 1As shown, in this embodiment, temperature detection modules Tx and air volume detection modules Tx are installed at the locations where each group of phase change temperature control module air paths are connected in series (V1, T1 in the figure) and / or at each branch air path (not shown). By installing temperature detection modules and air volume detection modules at the locations where each branch air path and / or each phase change temperature control module air path is connected in series, the temperature and air volume of the air passing through the branch air path and / or the phase change temperature control module can be detected in real time for better control.

[0057] This embodiment provides a phase-change temperature control module with multiple phase transition points, which can diversify the phase transition temperature, thus expanding its application scenarios. Furthermore, the phase-change temperature control module with multiple phase transition points provided by this embodiment uses its own phase transition to adjust the temperature, saving a significant amount of external energy and meeting current energy conservation requirements.

[0058] [Example of building air conditioning system]

[0059] like Figure 2 As shown, it is a structural diagram of the building air conditioning system provided by this embodiment, which includes the above-mentioned phase change temperature control module. The building air conditioning system includes an air supply port and a return air port connected to the room, and a fresh air port connected to the outside. The air is driven by a fan from the fresh air port and / or the return air port into the air duct and is sent out from the air supply port. The above-mentioned phase change temperature control module 100 is connected in series in the air duct. In addition, an exhaust branch is provided between the fan and the air supply port connected to the room, which is used to discharge the cold air or hot air in the room to the outside. Figure 2 As shown, in this embodiment, the wind input to the phase change temperature control module 100 is mixed wind. Among them, including air from the fresh air inlet, air from the return air inlet, and / or air from the air conditioning system, the air valve of each branch can be controlled according to the actual working conditions to control whether the branch air is input into the phase change temperature control module 100. In addition. A temperature detection device and / or an air volume detection device can be connected to each branch and / or the connection point of each branch according to actual needs. In this embodiment, an indoor fan coil air supply branch pipe (not shown) can also be provided between the return air inlet connected to the room and the input end of the phase change temperature control module. A fresh air unit can also be provided between the indoor air supply inlet and the outdoor fresh air inlet. (not shown).

[0060] In addition, in this embodiment, the phase change point temperature T of the phase change device in the first group of phase change temperature control modules arranged along the air path can be determined by the following formula: pcm1 :

[0061]

[0062] Among them, Ω is the number of days in a year when the maximum temperature is greater than the preset temperature, |Ω| is the size of the set, T i minis the lowest temperature on the i-th day of the year, ΔT is the temperature adjustment coefficient, and the adjustment range is ±5℃.

[0063] The phase change point temperature T of the phase change device in the last set of phase change temperature control modules arranged along the air path can be determined by the following formula: pcmn :

[0064] T pcmn =[T comf -(T n -T o )]+ΔT

[0065] Among them, T comf is the preset temperature, T n is the air supply temperature of the air supply outlet connected to the room, T o is the return air temperature of the return air outlet connected to the room, ΔT is the temperature adjustment coefficient, and the adjustment range is ±5℃.

[0066] This embodiment provides a building air conditioning system including a phase change temperature control module 100, which can adjust the indoor temperature through the cooperation of the phase change temperature control module and the remaining branches, and can achieve good energy-saving effects while ensuring that the preset temperature is reached.

[0067] [Embodiment of a temperature control method based on a phase change temperature control module]

[0068] The temperature control method based on the phase change temperature control module provided in this embodiment comprehensively considers the working state of the phase change temperature control module, the equivalent of the phase change device in the phase change temperature control module, and the relationship between the phase change temperature of the phase change device in the phase change temperature control module and the outdoor temperature. By considering the above factors, the opening and closing states of the air valves in each branch air path are controlled. Among them, the opening and closing states of the air valves are determined according to the specific working conditions. This embodiment uses two groups of phase change temperature control modules as an example to illustrate the temperature control method. Specifically:

[0069] 1. When the phase-change temperature control module is operating in cooling mode, the equivalent number of phase-change devices in both phase-change temperature control modules is sufficient, and the outdoor temperature is higher than the phase-change temperature of the phase-change devices in the first phase-change temperature control module along the air path: In this case, both phase-change temperature control modules are required to cool simultaneously. That is, the first phase-change temperature control module along the air path performs primary cooling, and the second phase-change temperature control module along the air path performs secondary cooling. Therefore, the air valves in the phase-change device branch air path of the phase-change temperature control module must be opened, and the air valves in the bypass branch air path of the phase-change temperature control module must be closed. At this time, the supply air temperature is the outlet air temperature of the second phase-change temperature control module along the air path.

[0070] 2. When the phase-change temperature control module is operating in the cooling state, the equivalent of the phase-change devices in both phase-change temperature control modules is sufficient, and the outdoor temperature is lower than the phase-change temperature of the phase-change devices in the first phase-change temperature control module arranged along the air path and higher than the temperature of the phase-change devices in the second phase-change temperature control module arranged along the air path: at this time, the second phase-change temperature control module arranged along the air path needs to be used for cooling, and the first phase-change temperature control module arranged along the air path needs to be bypassed. Therefore, at this time, it is necessary to control the air valves of the phase-change device branch air path in the second phase-change temperature control module arranged along the air path and the air valves of the bypass branch air path in the first phase-change temperature control module arranged along the air path to be open, and control the air valves of the phase-change device branch air path in the first phase-change temperature control module arranged along the air path and the air valves of the bypass branch air path in the second phase-change temperature control module arranged along the air path to be closed.

[0071] 3. When the phase-change temperature control modules are operating in cooling mode, the equivalent number of phase-change devices in both phase-change temperature control modules is sufficient, and the outdoor temperature is lower than the phase-change temperature of the phase-change devices in the second phase-change temperature control module located along the air path: At this point, neither the phase-change devices in the first phase-change temperature control module located along the air path nor the phase-change devices in the second phase-change temperature control module located along the air path are utilized for cooling. Therefore, the air valves in the bypass branch air paths of both phase-change temperature control modules need to be opened, and the air valves in the phase-change device branch air paths of both phase-change temperature control modules need to be closed.

[0072] 4. When the phase-change temperature control module is operating in a cooling state, the equivalent number of phase-change devices in the first group of phase-change temperature control modules along the air path is insufficient, the equivalent number of phase-change devices in the second group of phase-change temperature control modules along the air path is sufficient, and the outdoor temperature is higher than the phase-change temperature of the phase-change devices in the first group of phase-change temperature control modules along the air path: at this time, the phase-change devices in the second group of phase-change temperature control modules along the air path need to be used for cooling. Therefore, it is necessary to control the air valves of the bypass branch air path in the first group of phase-change temperature control modules along the air path and the air valves of the phase-change device branch air path in the second group of phase-change temperature control modules along the air path to open, and control the air valves of the phase-change device branch air path in the first group of phase-change temperature control modules and the air valves of the bypass branch air path in the second group of phase-change temperature control modules along the air path to close.

[0073] 5. When the phase-change temperature control module is operating in a cooling state, the equivalent number of phase-change devices in the first group of phase-change temperature control modules along the air path is insufficient, the equivalent number of phase-change devices in the second group of phase-change temperature control modules along the air path is sufficient, and the outdoor temperature is lower than the phase-change temperature of the phase-change devices in the first group of phase-change temperature control modules along the air path, higher than the phase-change temperature of the phase-change devices in the second group of phase-change temperature control modules along the air path, and higher than the phase-change temperature of the phase-change devices in the remaining phase-change temperature control modules: at this time, the phase-change devices in the second group of phase-change temperature control modules along the air path need to be used for cooling. In this case, the air valves of the bypass branch air path in the first group of phase-change temperature control modules along the air path and the air valves of the phase-change device branch air path in the second group of phase-change temperature control modules along the air path need to be controlled to open, and the air valves of the phase-change device branch air path in the first group of phase-change temperature control modules and the air valves of the bypass branch air path in the second group of phase-change temperature control modules along the air path need to be controlled to close.

[0074] 6. When the phase-change temperature control modules are operating in cooling mode, the equivalent number of phase-change devices in the first set of phase-change temperature control modules along the air path is insufficient, the equivalent number of phase-change devices in the second set of phase-change temperature control modules along the air path is sufficient, and the outdoor temperature is lower than the phase-change temperature of the phase-change devices in the second set of phase-change temperature control modules along the air path: at this time, neither the phase-change devices in the first set of phase-change temperature control modules along the air path nor the phase-change devices in the second set of phase-change temperature control modules along the air path are utilized for cooling. Therefore, it is necessary to control the air valves of the bypass branch air paths in both sets of phase-change temperature control modules to open, and control the air valves of the phase-change device branch air paths in both sets of phase-change temperature control modules to close.

[0075] 7. When the phase-change temperature control module is operating in cooling mode and the equivalent number of phase-change devices in both the first and second phase-change temperature control modules along the air path is insufficient, neither the phase-change devices in the first nor the second phase-change temperature control modules along the air path are utilized for cooling. Therefore, all air valves in the phase-change temperature control modules must be closed. Based on this, the system predicts the power and COP of the air conditioning chiller for the day and identifies the most optimal time period for phase-change material recovery. During this recovery period, the air valves in the phase-change device branch air paths in both phase-change temperature control modules are appropriately opened. Alternatively, the system can allow the phase-change materials to recover naturally when the phase-change temperature control modules are inactive, during which time the air valves in the phase-change device branch air paths in both phase-change temperature control modules are appropriately opened.

[0076] Furthermore, in this embodiment, when the phase-change temperature control module is operating in cooling mode (1-7), if the indoor humidity exceeds a predetermined value, the damper connecting the fan coil unit's air supply branch to the phase-change temperature control module closes. The fan in the phase-change temperature control module stops operating, and the fan coil unit's air supply branch dehumidifies the room.

[0077] When the phase change temperature control module is working in the heating state, only the phase change temperature control module with a higher phase change point is used for heating. Therefore, the phase change devices in the first few groups of phase change temperature control modules set along the air path can be selected for heating according to the actual application conditions. In this embodiment, two groups of phase change temperature control modules are still used as an example for explanation. In the following description, the preset temperature needs to be lower than the phase change temperature of the phase change device in the first group of phase change temperature control modules set along the air path. Specifically:

[0078] 8. When the phase-change temperature control module is operating in the heating state, the equivalent number of phase-change devices in the first set of phase-change temperature control modules along the air path is sufficient, and the outdoor temperature is below the preset temperature (for example, 20°C): the phase-change devices in the first set of phase-change temperature control modules along the air path are used for heating. At this time, the air valves of the phase-change device branch air paths in the first set of phase-change temperature control modules along the air path and the air valves of the bypass branch air paths in the second set of phase-change temperature control modules along the air path need to be controlled to open, while the air valves of the bypass branch air paths in the first set of phase-change temperature control modules along the air path and the air valves of the phase-change device branch air paths in the second set of phase-change temperature control modules along the air path need to be controlled to close.

[0079] 9. When the phase-change temperature control module is operating in the heating state, the phase-change devices in the first group of phase-change temperature control modules along the air path are sufficient in equivalent quantity, and the outdoor temperature is higher than the preset temperature but lower than the phase-change temperature of the phase-change devices in the first group of phase-change temperature control modules along the air path: heating is now performed using the phase-change devices in the first group of phase-change temperature control modules along the air path. At this point, the air valves in the phase-change device branch air paths in the first group of phase-change temperature control modules along the air path and the air valves in the bypass branch air paths in the second group of phase-change temperature control modules along the air path need to be controlled to open, while the air valves in the bypass branch air paths in the first group of phase-change temperature control modules along the air path and the air valves in the phase-change device branch air paths in the second group of phase-change temperature control modules along the air path need to be controlled to close.

[0080] 10. When the phase-change temperature control modules are operating in the heating mode, the phase-change devices in the first set of phase-change temperature control modules along the air path are sufficient, and the outdoor temperature is higher than the phase-change temperature of the phase-change devices in the first set of phase-change temperature control modules along the air path, the phase-change devices in the first set of phase-change temperature control modules along the air path are not utilized for heating. Therefore, the air valves in the bypass branch air paths of the two phase-change temperature control modules must be opened, and the air valves in the phase-change device branch air paths of the two phase-change temperature control modules must be closed.

[0081] 11. When the phase change temperature control module is working in the heating state, if the equivalent of the phase change devices in the first group of phase change temperature control modules set along the air path is insufficient: the phase change devices in the phase change temperature control module are not used for heating. Then, it is necessary to control all the air valves in the phase change temperature control module to be closed. On this basis, the phase change material can be actively restored by using thermal resistors.

[0082] If the heating system in the system where the phase change temperature control module is used is a heat pump, the system will predict the heat pump's COP for the day and identify the most appropriate time period for COP recovery to restore the phase change material, ensuring that the heat pump's COP is at its highest point during the recovery period. At this point, the air valves in the phase change device branch air paths in the first set of phase change temperature control modules, located along the air path, will be appropriately opened. If the heating system in the system where the phase change temperature control module is used is a boiler, the system will predict its operating efficiency based on the boiler's efficiency curve and identify the most appropriate point for phase change material recovery to ensure that the boiler's efficiency is at its highest point during the recovery period. At this point, the air valves in the phase change device branch air paths in the first set of phase change temperature control modules, located along the air path, will be appropriately opened.

[0083] By controlling the states of the air valves when the phase change temperature control module provided in this embodiment is operating in the cooling or heating state, the phase change temperature control module can be conveniently controlled to achieve energy saving.

[0084] [Specific implementation method of building air conditioning system based on phase change temperature control module]

[0085] Next, combine Figure 3 The specific control process of the building air-conditioning system based on the phase change thermostat module is described to further explain the principle of the present application in detail. For example, in this embodiment, two groups of phase change thermostat modules are selected, and the phase change temperature of the phase change device in the first group of phase change thermostat modules along the air path is 24°C. The phase change temperature of the phase change device in the second group of phase change thermostat modules along the air path is 18°C. In addition, it should be noted that, for the convenience of description, in this embodiment, the phase change device in the first group of phase change thermostat modules along the air path is the first phase change device, and the phase change device in the second group of phase change thermostat modules along the air path is the second phase change device. Therefore, hereinafter, the first phase change device represents the phase change device in the first group of phase change thermostat modules along the air path, and the second phase change device represents the phase change device in the second group of phase change thermostat modules along the air path.

[0086] like Figure 3Figure 1 is a schematic diagram of the structure of a building air conditioning system based on a phase change temperature control module according to this embodiment. The building air conditioning system based on a phase change temperature control module includes a phase change temperature control module 100 and an air supply module 200 connected to the phase change temperature control module 100. The input end of the phase change temperature control module 100 is connected to the output end of the air conditioning system 300 via a first air valve P1. The output end of the air supply module 200 serves as a first indoor air supply end.

[0087] In this embodiment, the phase change temperature control module 100 has the same structure as the phase change temperature control module 100 in the above embodiment, so its description will not be repeated in this embodiment. The air supply module 200 in this embodiment includes a first fan, a third temperature detection device T3, and a third air volume detection device V3, which are connected in sequence. The first fan is connected to the output of the phase change temperature control module 100, and the output of the third air volume detection device is the first indoor air supply terminal. Furthermore, the line connecting the first fan and the third temperature detection device T3 is connected to the first exhaust vent via a sixth air valve P6. In this embodiment, the air conditioning system 300 includes a fresh air unit 310 and a return air unit 320. The output of the return air unit 320 is connected to the first air valve P1 via a fourth temperature detection device T4, a fourth air volume detection device V4, and a seventh air valve P7. The fresh air unit 310 includes a first cooling coil, a first heating coil, and a second fan, which are connected in sequence. The input of the first cooling coil is connected to the first fresh air vent, and the output of the second fan is connected to the fresh air supply terminal via an eighth air valve P8. The return air unit 320 includes a second cooling coil, a second heating coil, and a third fan connected in sequence. The input end of the second cooling coil is connected to the first indoor return air terminal, and the output end of the third fan is also connected to the second indoor supply air terminal through the ninth air valve P9.

[0088] In this embodiment, the building air conditioning system based on the phase change temperature control module also includes an indoor exhaust module 400. The indoor exhaust module 400 is composed of a tenth air valve P10, a fifth air volume detection device V5, a fifth temperature detection device T5, and a heat exchanger, which are connected in sequence. One end of the heat exchanger is connected to the second fresh air inlet via the sixth air volume detection device V6 and the sixth temperature detection device T6; one end of the heat exchanger is connected to the second exhaust outlet; the other end of the heat exchanger is connected to the first air valve P1 via the eleventh air valve P11, the seventh temperature detection device T7, and the seventh air volume detection device V7.

[0089] In this embodiment, the building air conditioning system based on the phase change temperature control module also includes a return air branch 500, which is connected to the first air valve P1 via a twelfth air valve P12. The other end of the twelfth air valve P12 is connected to the eighth temperature detection device T8 and the eighth air volume detection device V8 in sequence. The other end of the eighth air volume detection device V8 is connected to the second indoor return air terminal.

[0090] Next, the specific control process of the above application scenario given in this embodiment is given.

[0091] 1. When the working state of the building air-conditioning system based on the phase change temperature control module is the cooling state, the first phase change device equivalent is sufficient, the second phase change device equivalent is sufficient, and the outdoor temperature is higher than the phase change temperature of the first phase change device: control the first air valve P1, the third air valve P3, the fifth air valve P5, the eleventh air valve P11 and the twelfth air valve P12 to open, and control the remaining air valves to close.

[0092] 2. When the working state of the building air-conditioning system based on the phase change temperature control module is the cooling state, the first phase change device is sufficient in equivalent, the second phase change device is sufficient in equivalent, and the outdoor temperature is greater than the phase change temperature of the second phase change device and less than the phase change temperature of the first phase change device: control the first air valve P1, the second air valve P2, the fifth air valve P5 and the eleventh air valve P11 to open, and control the remaining air valves to close.

[0093] 3. When the working state of the building air-conditioning system based on the phase change temperature control module is the cooling state, the first phase change device equivalent is sufficient, the second phase change device equivalent is sufficient and the outdoor temperature is lower than the phase change temperature of the second phase change device: control the first air valve P1, the second air valve P2, the fourth air valve P4 and the eleventh air valve P11 to open, and control the remaining air valves to close.

[0094] 4. When the working state of the building air-conditioning system based on the phase change temperature control module is the cooling state, the equivalent of the first phase change device is insufficient, the equivalent of the second phase change device is sufficient, and the outdoor temperature is higher than the phase change temperature of the first phase change device: control the first air valve P1, the second air valve P2, the fifth air valve P5, the eleventh air valve P11 and the twelfth air valve P12 to open, and control the remaining air valves to close.

[0095] 5. When the working state of the building air-conditioning system based on the phase change temperature control module is the cooling state, the equivalent of the first phase change device is insufficient, the equivalent of the second phase change device is sufficient, and the outdoor temperature is greater than the phase change temperature of the second phase change device and lower than the phase change temperature of the first phase change device: control the first air valve P1, the second air valve P2, the fifth air valve P5 and the eleventh air valve P11 to open, and control the remaining air valves to close.

[0096] 6. When the working state of the building air-conditioning system based on the phase change temperature control module is the cooling state, the equivalent of the first phase change device is insufficient, the equivalent of the second phase change device is sufficient, and the outdoor temperature is lower than the phase change temperature of the second phase change device: control the first air valve P1, the second air valve P2, the fourth air valve P4 and the eleventh air valve P11 to open, and control the remaining air valves to close.

[0097] 7. When the working state of the building air-conditioning system based on the phase change temperature control module is the cooling state and the equivalents of the first phase change device and the second phase change device are insufficient: control the eighth air valve P8 and the ninth air valve P9 to open, and control the remaining air valves to close.

[0098] 8. When the building air conditioning system based on the phase change temperature control module is operating in the heating mode, the first phase change device has sufficient equivalent capacity, and the outdoor temperature is less than a second preset temperature: the first air valve P1, the third air valve P3, the fourth air valve P4, the eleventh air valve P11, and the twelfth air valve P12 are controlled to open, and the remaining air valves are controlled to close. The second preset temperature is less than the phase change temperature of the first phase change device.

[0099] 9. When the working state of the building air-conditioning system based on the phase change temperature control module is the heating state, the first phase change device is sufficient, and the outdoor temperature is greater than the second preset temperature and less than the phase change temperature of the first phase change device: control the first air valve P1, the third air valve P3, the fourth air valve P4 and the eleventh air valve P11 to open, and control the remaining air valves to close.

[0100] 10. When the working state of the building air-conditioning system based on the phase change temperature control module is the heating state, the first phase change device is sufficient in equivalent, and the outdoor temperature is greater than the phase change temperature of the first phase change device: control the second air valve P2 and the fourth air valve P4 to open, and control the remaining air valves to close.

[0101] 11. When the working state of the building air conditioning system based on the phase change temperature control module is the heating state and the equivalent of the first phase change device is insufficient: control the eighth air valve P8 and the ninth air valve P9 to open, and control the remaining air valves to close.

[0102] In this embodiment, the opening degree of each air valve is linearly adjusted based on the required air supply type. Specifically, the air supply type is the required ratio of fresh air volume to return air volume in the supply air volume, and the opening degree of each air valve is linearly adjusted based on the required ratio of fresh air volume to return air volume in the supply air volume.

[0103] Another embodiment of the present application further provides a server, including the temperature control method of the phase change temperature control module described in the above embodiment.

[0104] like Figure 4 FIG. 5 is a schematic structural diagram of a computing device 5000 provided in an embodiment of the present application. The computing device 5000 includes: a processor 5010 , a memory 5020 , a communication interface 5030 , and a bus 5040 .

[0105] It should be understood that the communication interface 5030 in the computing device 5000 shown in this figure can be used to communicate with other devices.

[0106] The processor 5010 may be connected to a memory 5020. The memory 5020 may be used to store the program code and data. Therefore, the memory 5020 may be a storage unit within the processor 5010, an external storage unit independent of the processor 5010, or a component including both a storage unit within the processor 5010 and an external storage unit independent of the processor 5010.

[0107] Optionally, the computing device 5000 may further include a bus 5040. The memory 5020 and the communication interface 5030 may be connected to the processor 5010 via the bus 5040. The bus 5040 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, for example. The bus 5040 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figure shows only one line, but this does not imply that there is only one bus or only one type of bus.

[0108] It should be understood that in the embodiments of the present application, the processor 5010 may be a central processing unit (CPU). The processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor. Alternatively, the processor 5010 may be one or more integrated circuits for executing relevant programs to implement the technical solutions provided in the embodiments of the present application.

[0109] The memory 5020 may include a read-only memory and a random access memory, and provides instructions and data to the processor 5010. A portion of the processor 5010 may also include a non-volatile random access memory. For example, the processor 5010 may also store information about the device type.

[0110] When the computing device 5000 is running, the processor 5010 executes the computer-executable instructions in the memory 5020 to perform the operating steps of the above method.

[0111] It should be understood that the computing device 5000 according to the embodiment of the present application can correspond to the corresponding subject in executing the method according to each embodiment of the present application, and the above-mentioned and other operations and / or functions of each module in the computing device 5000 are respectively for implementing the corresponding processes of each method of the present embodiment. For the sake of brevity, they will not be repeated here.

[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 depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0113] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0114] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as 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 devices or units, which can be electrical, mechanical or other forms.

[0115] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0116] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0117] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0118] An embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, it is used to execute the temperature control method of the above-mentioned phase change temperature control module, which method includes at least one of the solutions described in the above-mentioned embodiments.

[0119] The computer storage medium of the embodiment of the present application can adopt any combination of one or more computer-readable media.Computer-readable media can be computer-readable signal media or computer-readable storage media.Computer-readable storage media can be, for example, but not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or components, or any combination thereof.More specific examples (non-exhaustive list) of computer-readable storage media include: electrical connection with one or more wires, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROMs), optical storage devices, magnetic storage devices, or any suitable combination thereof.In this document, computer-readable storage media can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0120] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0121] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0122] The computer program code for performing the operations of the present application can be written in one or more programming languages, or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0123] Note that the above are only preferred embodiments of the present application and the technical principles employed. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of protection of the present application, all of which fall within the scope of protection of the present application.

Claims

1. A phase change temperature control module, characterized in that: include: At least two phase-change temperature control modules are connected in series, each phase-change temperature control module comprising a phase-change device branch air path and a bypass branch air path connected in parallel; each branch air path is provided with an air valve; the phase-change device branch air path refers to an air path provided with a phase-change device; The phase change points of the phase change devices in each group of phase change temperature control modules decrease in sequence along the direction of the air path; Among the groups of phase change temperature control modules arranged along the air path, at least the first group of phase change temperature control modules is provided with a heating module capable of heating its phase change device; The positions where the air paths of each group of phase change temperature control modules are connected in series, and / or each branch air path is provided with a temperature detection module and an air volume detection module.

2. A building air conditioning system comprising the phase change temperature control module according to claim 1, wherein the building air conditioning system comprises an air supply port and an air return port connected to the room, and a fresh air port connected to the outside, wherein a fan drives air from the fresh air port and / or the return air port into the air duct and is delivered from the air supply port, characterized in that: The phase change temperature control module is connected in series in the air pipeline; An indoor fan coil air supply branch pipe is provided between the return air outlet in the communication room and the input end of the phase change temperature control module; A fresh air unit is provided between the indoor air supply outlet and the outdoor fresh air outlet.

3. The building air conditioning system according to claim 2, characterized in that: The phase change point temperature of the phase change device in the first group of phase change temperature control modules arranged along the air path is determined by the following formula: : ; in, The number of days in a year when the maximum temperature is greater than the preset temperature. is the size of the set, is the lowest temperature on the i-th day of the year, is the temperature adjustment coefficient, and the adjustment range is ±5℃.

4. The building air conditioning system according to claim 2, characterized in that: Determine the phase change point temperature of the phase change device in the last set of phase change temperature control modules set along the air path by the following formula: : ; in, is the preset temperature, is the air supply temperature of the air supply outlet connected to the room, is the return air temperature of the return air outlet connected to the room, is the temperature adjustment coefficient, and the adjustment range is ±5℃.

5. A temperature control method based on the phase change temperature control module according to claim 1, characterized in that: The method comprises: The opening and closing states of the air valves in each branch air path are determined according to the working state of the phase change temperature control module, the equivalent of the phase change device in the phase change temperature control module, and the relationship between the outdoor temperature and the phase change temperature of the phase change device in the phase change temperature control module.

6. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the cooling state, the equivalent of the phase change devices in each phase change temperature control module is sufficient, and the outdoor temperature is higher than the phase change temperature of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction: the air valve of the phase change device branch air path in each phase change temperature control module is controlled to open, and the air valve of the bypass branch air path in each phase change temperature control module is controlled to close.

7. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the cooling state, the equivalent of the phase change devices in each of the phase change temperature control modules is sufficient, and the outdoor temperature is lower than the phase change temperature of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction and higher than the temperature of the phase change devices in other phase change temperature control modules: the air valves of the phase change device branch air paths in the other phase change temperature control modules and the air valves of the bypass branch air paths in the first group of phase change temperature control modules arranged along the air path direction are controlled to open, and the air valves of the phase change device branch air paths in the first group of phase change temperature control modules arranged along the air path direction and the air valves of the bypass branch air paths in other phase change temperature control modules are controlled to close.

8. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the cooling state, the equivalent of the phase change devices in each phase change temperature control module is sufficient, and the outdoor temperature is lower than the phase change temperature of the phase change devices in the last group of phase change temperature control modules arranged along the air path direction: the air valve of the bypass branch air path in each phase change temperature control module is controlled to open, and the air valve of the phase change device branch air path in each phase change temperature control module is controlled to close.

9. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the cooling state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction is insufficient, the equivalent of the phase change devices in the other phase change temperature control modules is sufficient, and the outdoor temperature is higher than the phase change temperature of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction: the air valves of the bypass branch air path in the first group of phase change temperature control modules and the air valves of the phase change device branch air path in other phase change temperature control modules are controlled to open, and the air valves of the phase change device branch air path in the first group of phase change temperature control modules and the air valves of the bypass branch air path in other phase change temperature control modules are controlled to close.

10. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the cooling state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path is insufficient, the equivalent of the phase change devices in the other phase change temperature control modules is sufficient, and the outdoor temperature is lower than the phase change temperature of the phase change devices in the first group of phase change temperature control modules arranged along the air path, and higher than the phase change temperature of the phase change devices in the other phase change temperature control modules: the air valves of the bypass branch air paths in the first group of phase change temperature control modules along the air path and the air valves of the phase change device branch air paths in the other phase change temperature control modules are controlled to open, and the air valves of the phase change device branch air paths in the first group of phase change temperature control modules and the air valves of the bypass branch air paths in the other phase change temperature control modules are controlled to close.

11. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the cooling state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path is insufficient, the equivalent of the phase change devices in the remaining phase change temperature control modules is sufficient, and the outdoor temperature is lower than the phase change temperature of the phase change devices in the other phase change temperature control modules arranged along the air path: the air valve of the bypass branch air path in each of the phase change temperature control modules is controlled to open, and the air valve of the phase change device branch air path in each of the phase change temperature control modules is controlled to close.

12. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the cooling state and the equivalent of the phase change devices in each phase change temperature control module is insufficient: all the air valves in the phase change temperature control module are controlled to be closed.

13. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the heating state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path is sufficient, and the outdoor temperature is lower than the preset temperature: the air valves of the phase change device branch air paths in the first group of phase change temperature control modules along the air path and the air valves of the bypass branch air paths in other phase change temperature control modules are controlled to be open, and the air valves of the bypass branch air paths in the first group of phase change temperature control modules along the air path and the air valves of the phase change device branch air paths in other phase change temperature control modules are controlled to be closed; The preset temperature is lower than the phase change temperature of the phase change devices in the first group of phase change temperature control modules arranged along the air path.

14. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the heating state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path direction is sufficient, and the outdoor temperature is higher than the preset temperature and lower than the phase change temperature of the phase change devices in the first group of phase change temperature control modules along the air path direction: the air valves of the phase change device branch air paths in the first group of phase change temperature control modules along the air path direction and the air valves of the bypass branch air paths in other phase change temperature control modules are controlled to be opened, and the air valves of the bypass branch air paths in the first group of phase change temperature control modules along the air path direction and the air valves of the phase change device branch air paths in other phase change temperature control modules are controlled to be closed.

15. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the heating state, the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path is sufficient, and the outdoor temperature is higher than the phase change temperature of the phase change devices in the first group of phase change temperature control modules along the air path: the air valve of the bypass branch air path in each phase change temperature control module is controlled to open, and the air valve of the phase change device branch air path in each phase change temperature control module is controlled to close.

16. The method according to claim 5, characterized in that When the working state of the phase change temperature control module is the heating state and the equivalent of the phase change devices in the first group of phase change temperature control modules arranged along the air path is insufficient: all air valves in the phase change temperature control module are controlled to be closed.

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