Control method and control device for dual refrigerant air conditioner, and dual refrigerant air conditioner

Abstract

The application relates to the technical field of air conditioner intelligent refrigeration, and discloses a control method for a double-refrigeration air conditioner. The control method comprises the following steps: when the double-refrigeration air conditioner operates in a first mode, an outdoor environment temperature on an outdoor side is acquired; the first mode comprises that a refrigerant heat exchange system is in a standby or shutdown mode, and an adsorption refrigeration system is in an adsorption refrigeration mode; if the outdoor environment temperature is greater than a set outer ring temperature threshold value, the operation of the adsorption refrigeration mode is controlled according to a first communication relationship; the first communication relationship comprises that a first evaporation part is disconnected from a first adsorption part, a second evaporation part keeps being connected with a second adsorption part, and the first evaporation part keeps being connected with the second evaporation part. The control method provided by the embodiment of the application can adjust the adsorption medium conveying mode in the two evaporation parts and the corresponding two adsorption parts. The application further discloses a control device for the double-refrigeration air conditioner and the double-refrigeration air conditioner.

Description

Technical Field

[0001] This application relates to the field of intelligent air conditioning technology, for example to a control method, control device and dual-cooling air conditioner. Background Technology

[0002] With the advancement of science and technology in the world today, the structural design and cooling performance of air conditioners have also made great progress. Based on their cooling principles, current air conditioners can be mainly divided into the following types:

[0003] (1) Refrigerant refrigeration utilizes the principle of heat absorption or release during the gas-liquid two-state change of refrigerant to expel indoor heat to the outdoor environment.

[0004] (2) Adsorption refrigeration, which utilizes the principle that the refrigerant releases and absorbs heat during the adsorption and desorption processes of the adsorbent to achieve the transfer of indoor heat.

[0005] (3) Steam jet refrigeration, which relies on the suction effect of the steam jet to make the refrigerant evaporate in the vacuum environment generated by the suction to achieve the purpose of refrigeration.

[0006] (4) Thermoelectric refrigeration, which uses the reverse reaction of the Seebeck effect—the Peltier effect—to achieve the purpose of refrigeration. The most common thermoelectric refrigeration method is semiconductor refrigeration.

[0007] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0008] Among the aforementioned refrigeration technologies, refrigerant refrigeration and adsorption refrigeration employ different refrigeration structure designs to achieve refrigeration operations, each with its own advantages and disadvantages. Current air conditioning products generally only use one of these refrigeration structure designs, relying on a single refrigeration technology for cooling. Therefore, how to apply these two refrigeration technologies to the same air conditioner and effectively improve its performance represents a completely new approach to air conditioning product design. Summary of the Invention

[0009] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0010] This disclosure provides a control method, control device, and dual-cooling air conditioner to solve the technical problem that the prior art does not utilize both refrigerant refrigeration and adsorption refrigeration technologies to achieve air conditioning refrigeration.

[0011] In some embodiments, the control method for a dual-cooling air conditioner includes:

[0012] When the dual-cooling air conditioner is operating in the first mode, the outdoor ambient temperature is obtained; wherein, the first mode includes: the refrigerant heat exchange system is in standby or shutdown mode, and the adsorption refrigeration system is in adsorption refrigeration mode.

[0013] If the outdoor ambient temperature is greater than the set external ambient temperature threshold, the adsorption refrigeration mode will be controlled according to the first connectivity relationship.

[0014] The first connection relationship includes: the first evaporation section is disconnected from the first adsorption section, the second evaporation section is connected to the second adsorption section, and the first evaporation section is connected to the second evaporation section.

[0015] In some embodiments, the control device for a dual-cooling air conditioner includes:

[0016] The processor and the memory storing program instructions are configured to, when executing the program instructions, perform a control method for a dual-cooling air conditioner as described in some of the preceding embodiments.

[0017] In some embodiments, a dual-cooling air conditioner includes:

[0018] The refrigerant heat exchange system mainly includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, and a throttling device;

[0019] One or more adsorption refrigeration systems, each adsorption refrigeration system comprising:

[0020] The first evaporation section and the second evaporation section are respectively located at the indoor heat exchanger of the refrigerant heat exchange system, and a first adsorption medium transport flow path that can be switched on and off is constructed between the first evaporation section and the second evaporation section.

[0021] The first adsorption section is located at the outdoor heat exchanger of the refrigerant heat exchange system, and a second adsorption medium transport flow path that can be switched on and off is constructed between the first adsorption section and the first evaporation section.

[0022] The second adsorption section is located at the compressor of the refrigerant heat exchange system. A third adsorption medium transport flow path that can be switched on and off is constructed between the second adsorption section and the second evaporation section, and a fourth adsorption medium transport flow path that can be switched on and off is constructed between the second adsorption section and the first adsorption section.

[0023] Control devices for dual-cooling air conditioners, as described in some of the embodiments above.

[0024] The control method, apparatus, and dual-cooling air conditioner provided in this disclosure can achieve the following technical effects:

[0025] The control method for a dual-cooling air conditioner provided in this disclosure can adjust the on / off state of the pipeline connection of the adsorption refrigeration system in the adsorption refrigeration stage according to the outdoor ambient temperature when the dual-cooling air conditioner is operating in the first mode. The cooling capacity of the adsorption refrigeration is accumulated by utilizing the heat discharged from the refrigerant heat exchange system in the desorption storage stage. By changing the on / off state of the pipeline connection, the transport mode of the adsorption medium in the two evaporation sections and their corresponding two adsorption sections can be adjusted, thereby adapting the operating state of the adsorption refrigeration system to the current operating conditions to ensure the working efficiency of the adsorption refrigeration mode. This disclosure does not simply superimpose two refrigeration systems into the same air conditioner; rather, it cleverly combines two refrigeration structures and the two processes of refrigerant refrigeration and desorption storage, fully considering the refrigeration principles of both. This not only simplifies the product structure of the combined air conditioner but also effectively improves the overall cooling performance of the air conditioner.

[0026] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0027] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0028] Figure 1 This is a schematic diagram of the structure of a dual-cooling air conditioner provided in an embodiment of this disclosure;

[0029] Figure 2 This is a schematic flowchart of a control method for a dual-cooling air conditioner provided in an embodiment of this disclosure;

[0030] Figure 3 This is a schematic diagram of the structure of the control device for a dual-cooling air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0031] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0032] Figure 1 This is a schematic diagram of the structure of a dual-cooling air conditioner provided in an embodiment of this disclosure.

[0033] like Figure 1 As shown in the illustration, this disclosure provides a dual-cooling air conditioner, including a refrigerant heat exchange system and an adsorption refrigeration system. The refrigerant heat exchange system can be a single-cooling refrigerant heat exchange system, which can be used for cooling, dehumidifying, and other functions of the indoor environment, or it can be a cooling-heating refrigerant heat exchange system, which can be used for cooling, dehumidifying, and heating functions of the indoor environment. The adsorption refrigeration system can be used to cool the indoor environment when operating in adsorption refrigeration mode.

[0034] In some optional embodiments, taking a cooling and heating refrigerant heat exchange system as an example, the refrigerant heat exchange system mainly includes components such as an indoor heat exchanger 11, an outdoor heat exchanger 12, a compressor 13, and a throttling device 14; the indoor heat exchanger 11, the outdoor heat exchanger 12, the throttling device 14, and the compressor 13 are connected by refrigerant pipelines to form a refrigerant circulation loop, and the refrigerant flows along the flow direction set by different operating modes through the refrigerant circulation loop to realize its different operating mode functions.

[0035] Here, the dual-cooling air conditioner includes an indoor unit and an outdoor unit. The indoor heat exchanger is located in the indoor unit, which is also equipped with an indoor fan for driving indoor air to exchange heat with the indoor heat exchanger 11. The outdoor heat exchanger 12 and compressor 13 are located in the outdoor unit, which is also equipped with an outdoor fan for outdoor air to exchange heat with the outdoor heat exchanger 12. The outdoor heat exchanger 12 is located on the air inlet side of the outdoor fan.

[0036] In the embodiments, the operating modes of the refrigerant heat exchange system of the dual-cooling air conditioner include cooling mode, dehumidification mode and heating mode. The cooling mode is generally used in high-temperature conditions in summer to reduce the indoor ambient temperature; the dehumidification mode is also generally used in high-temperature and high-humidity conditions in summer to reduce the indoor ambient humidity; and the heating mode is generally used in low-temperature conditions in winter to increase the indoor ambient temperature.

[0037] When the refrigerant heat exchange system operates in cooling mode, the refrigerant flow is set so that the high-temperature refrigerant discharged from the compressor 13 first flows through the outdoor heat exchanger 12 to exchange heat with the outdoor environment, then flows into the indoor heat exchanger 11 to exchange heat with the indoor environment, and finally the refrigerant flows back to the compressor 13 to perform compression operation again. During this process, the refrigerant flowing through the outdoor heat exchanger 12 releases heat to the outdoor environment, and the refrigerant flowing through the indoor heat exchanger 11 absorbs heat from the indoor environment. Through the circulation of the refrigerant in the refrigerant circulation loop, the heat in the room can be continuously discharged to the outdoor environment, thereby achieving the purpose of cooling the indoor environment by reducing the temperature.

[0038] When the refrigerant heat exchange system is operating in dehumidification mode, the refrigerant flow direction is the same as that in cooling mode. The difference is that when the air conditioner is operating in dehumidification mode, by adjusting some operating parameters, such as reducing the flow opening of the throttling device 14, the temperature and pressure of the refrigerant flowing into the indoor heat exchanger 11 can be lower. This allows the indoor heat exchanger 11 to reach a lower temperature as the refrigerant absorbs heat and evaporates. Thus, when the surface temperature of the indoor heat exchanger 11 is lower than the dew point temperature of the current operating condition, the water vapor in the indoor air flowing through the indoor heat exchanger 11 can condense on the indoor heat exchanger 11, thereby achieving the purpose of reducing indoor air humidity.

[0039] When operating in heating mode, the refrigerant flow is set so that the high-temperature refrigerant discharged from the compressor 13 first flows through the indoor heat exchanger 11 to exchange heat with the outdoor environment, then flows into the outdoor heat exchanger 12 to exchange heat with the indoor environment, and finally the refrigerant flows back to the compressor 13 to re-compress. During this process, the refrigerant flowing through the indoor heat exchanger 11 releases heat to the indoor environment, and the refrigerant flowing through the outdoor heat exchanger 12 absorbs heat from the outdoor environment. Through the circulation of the refrigerant in the refrigerant circulation loop, heat from the outside can be continuously released into the indoor environment, thereby achieving the purpose of raising the indoor temperature.

[0040] In some optional embodiments, the various components of the refrigerant heat exchange system are assembled and connected using existing connection structures for refrigerant heat exchange systems, which will not be elaborated here.

[0041] In some optional embodiments, the dual-cooling air conditioner is provided with two adsorption refrigeration systems, including a first adsorption refrigeration system and a second adsorption refrigeration system, both of which are capable of performing both desorption cold storage and adsorption cold storage processes.

[0042] The first adsorption refrigeration system includes a first adsorption section 21 and a first evaporation section 231. The first adsorption section 21 is located at the outdoor heat exchanger 12 of the refrigerant heat exchange system and is filled with an adsorbent. It is used to absorb heat from the outdoor heat exchanger 12 and release the adsorbent medium during the desorption cold storage stage, and to adsorb the adsorbent medium and release heat during the adsorption refrigeration stage. The first evaporation section 231 is located on the indoor side and is used to store the liquid adsorbent medium from the first adsorption section 21 during the desorption cold storage stage, and to absorb heat from the indoor environment and transport the vaporized adsorbent medium to the first adsorption section 21 during the adsorption refrigeration stage.

[0043] In some embodiments, the first adsorption section 21 is disposed between the outdoor fan and the outdoor heat exchanger 12. Here, since the outdoor heat exchanger 12 is disposed on the air inlet side of the outdoor fan, the heat dissipated by the outdoor heat exchanger 12 can first flow through the first adsorption section 21 sandwiched between the outdoor fan and the outdoor heat exchanger 12 under the driving action of the outdoor fan, so that the first adsorption section 21 can absorb a large amount of heat for desorption and cold storage during the desorption and cold storage stage; at the same time, the first adsorption section 21 is also located on the air inlet side of the outdoor fan, so the heat released by the first adsorption section 21 can also be dissipated to the outdoor environment by the driving action of the outdoor fan during the adsorption and cooling stage.

[0044] Optionally, the outdoor heat exchanger 12 has a plate-like structure, and its cross-sectional profile is in the form of semi-enclosing the outdoor fan. Therefore, in order to improve the heat exchange effect between the first adsorption part 21 and the outdoor heat exchanger 12, in this embodiment, the overall shape of the first adsorption part 21 is adapted to the outdoor heat exchanger 12, and it is also designed to semi-enclose the outdoor fan and fits the outdoor heat exchanger 12, thereby effectively increasing the heat exchange area between the first adsorption part 21 and the outdoor heat exchanger 12 and improving the waste heat utilization efficiency of the outdoor heat exchanger 12.

[0045] Optionally, the first adsorption section 21 of the first adsorption refrigeration system is arranged along the transverse or longitudinal direction of the outdoor heat exchanger 12. The first adsorption section 21 is designed to be adapted to the corresponding part of the outdoor heat exchanger 12 to ensure the heat exchange efficiency of both.

[0046] The second adsorption refrigeration system includes a second adsorption section 22 and a second evaporation section 232. The second adsorption section 22 is located at the compressor 13 of the refrigerant heat exchange system and is filled with an adsorbent. It is used to absorb heat from the compressor 13 and release the adsorbent medium during the desorption and cold storage stage, and to adsorb the adsorbent medium and release heat during the adsorption refrigeration stage. The second evaporation section 232 is located on the indoor side and is used to store the liquid adsorbent medium from the second adsorption section 22 during the desorption and cold storage stage, and to absorb heat from the indoor environment and transport the vaporized adsorbent medium to the second adsorption section 22 during the adsorption refrigeration stage.

[0047] In some embodiments, the second adsorption section 22 is an encircling structure surrounding at least part of the compressor 13 body to increase the heat exchange area between the compressor 13 and the second adsorption section 22 and improve the heat exchange capacity.

[0048] Optionally, the second adsorption section 22 is a hollow cylindrical structure. The hollow space can be used to accommodate the compressor 13 and its related components. In this way, when the compressor 13 and its related components dissipate heat to the outside, most of the heat can be conducted to the second adsorption section 22 to improve the desorption efficiency of the second adsorption section 22. The second adsorption section 22 has a flow path for the adsorption medium to circulate inside.

[0049] Optionally, the second adsorption section 22 is fitted into the compressor 13. This fitted arrangement allows heat to be directly conducted from the compressor 13 to the second adsorption section 22 via solid heat conduction, effectively reducing heat loss and improving the utilization efficiency of the compressor 13's waste heat.

[0050] Optionally, a third adsorption medium transport path is constructed between the first adsorption section 21 and the second adsorption section 22; in this way, during the desorption and adsorption cooling stages, the gaseous adsorption medium can flow between the first adsorption section 21 and the second adsorption section 22, thereby improving the overall desorption and cooling effect and the adsorption cooling effect of the adsorption refrigeration system.

[0051] Optionally, the first evaporation section 231 and the second evaporation section 232 are plate-fin structures. The plate-fin structure can effectively improve the heat exchange effect between the adsorbent medium in the evaporation section and the indoor environment during the desorption and cold storage stage, thereby enhancing the heat absorption and cooling capacity. At the same time, the first evaporation section 231 and the second evaporation section 232 have flow paths for the adsorbent medium, and these flow paths are connected to the adsorbent medium transport flow paths.

[0052] In some optional embodiments, the indoor heat exchanger 11 has a longitudinal section with a zigzag shape and a semi-encircling structure around the indoor fan. Therefore, in order to improve the heat exchange effect between the evaporator 23 and the indoor environment, in this embodiment, the overall shape of the two evaporators is adapted to the indoor heat exchanger 11 and is also designed to semi-encircle the indoor fan and fit closely to the indoor heat exchanger 11, so as to increase the heat exchange area between the evaporator and the airflow flowing through the indoor unit and improve the heat absorption and cooling capacity.

[0053] Here, in order to enable the evaporation sections of the two adsorption refrigeration systems to absorb heat from the indoor environment evenly, the first evaporation section 231 and the second evaporation section 232 of the two adsorption refrigeration systems are also arranged side by side; optionally, the first evaporation section 231 and the second evaporation section 232 are arranged side by side along the transverse or longitudinal direction of the indoor heat exchanger 11, and the first evaporation section 231 and the second evaporation section 232 are designed to be adapted to the corresponding parts of the indoor heat exchanger 11.

[0054] Optionally, a fourth adsorption medium transport path is also constructed between the first evaporation section 231 and the second evaporation section 232; in this way, during the desorption and adsorption cold storage stages, the liquid and gaseous adsorption media can flow between the first evaporation section 231 and the second evaporation section 232, thereby improving the overall desorption and cold storage effect and the adsorption and refrigeration effect of the adsorption refrigeration system.

[0055] In addition, the first adsorption refrigeration system also includes a first intermediate heat dissipation section 24; wherein, the first intermediate heat dissipation section 24 is disposed on the first adsorption medium conveying flow path, and can be used to receive the gaseous adsorption medium conveyed by the first adsorption section 21 during the desorption and cold storage stage and dissipate heat and condense it to liquefy at least part of the gaseous adsorption medium, and then continue to convey the liquefied adsorption medium to the first evaporation section 231 for storage.

[0056] Here, the first intermediate heat dissipation section 24 is located on the outdoor side, and it achieves heat dissipation and condensation of the adsorbent medium through heat exchange with the outdoor environment. When the refrigerant heat exchange system is running in refrigerant cooling mode, the outdoor heat exchanger 12 discharges heat to the outside. Due to its temperature, the temperature of the first adsorption section 21 is generally higher than the outdoor environment temperature. Therefore, after the gaseous adsorbent medium released by the first adsorption section 21 under the influence of high temperature flows into the first intermediate heat dissipation section 24, the heat is dissipated to the outdoor environment, thereby causing at least part of the gaseous adsorbent medium to recondense into a liquid state.

[0057] Meanwhile, the second adsorption refrigeration system also includes a second intermediate heat dissipation section 25; wherein, the second intermediate heat dissipation section 25 is disposed on the second adsorption medium conveying flow path, and can be used to receive the gaseous adsorption medium conveyed by the second adsorption section 22 during the desorption and cold storage stage and dissipate heat and condense it to liquefy at least part of the gaseous adsorption medium, and then continue to convey the liquefied adsorption medium to the second evaporation section 232 for storage.

[0058] Here, the second intermediate heat dissipation section 25 is also located on the outdoor side. It achieves heat dissipation and condensation of the adsorbent medium through heat exchange with the outdoor environment. When the refrigerant heat exchange system is running in refrigerant refrigeration mode, the compressor 13 discharges heat to the outside. Due to its temperature, the temperature of the second adsorption section 22 is generally higher than the outdoor ambient temperature. Therefore, after the gaseous adsorbent medium released by the second adsorption section 22 under the influence of high temperature flows into the second intermediate heat dissipation section 25, the heat is dissipated to the outdoor environment, thereby causing at least part of the gaseous adsorbent medium to recondense into a liquid state.

[0059] Optionally, the first intermediate heat dissipation section 24 and the second intermediate heat dissipation section 25 are horizontal flow heat sinks.

[0060] In some embodiments, the first intermediate heat dissipation section 24 and the second intermediate heat dissipation section 25 are disposed on the back plate, side plate or bottom plate of the outdoor unit of the refrigerant heat exchange system and are located away from the air outlet of the outdoor unit, so as to avoid the high temperature air discharged from the outdoor unit from affecting the heat dissipation effect of the intermediate heat dissipation section.

[0061] Preferably, the first intermediate heat dissipation section 24 and the second intermediate heat dissipation section 25 are located on the base plate. In this configuration, the outdoor unit can shield the two intermediate heat dissipation sections from sunlight, thereby providing a more suitable heat dissipation temperature environment for the two intermediate heat dissipation sections.

[0062] Alternatively, since the outdoor unit's back panel is equipped with an air inlet, the first intermediate heat dissipation section 24 and the second intermediate heat dissipation section 25 can also be located near the air inlet, thereby utilizing the driving action of the outdoor fan to accelerate the flow of air around the intermediate heat dissipation section, thereby improving the heat dissipation effect.

[0063] In this embodiment, a first adsorption medium transport flow path is constructed between the first adsorption section 21 and the first evaporation section 231, and the adsorption medium can flow between the first adsorption section 21, the first intermediate heat dissipation section 24 and the first evaporation section 231 via the first adsorption medium transport flow path.

[0064] Here, the first adsorption medium transport path includes a first desorption flow path and a first adsorption flow path, wherein the first desorption flow path is the flow path used for transporting the adsorption medium during the desorption and cold storage stage, and the first adsorption flow path is the flow rate used for transporting the adsorption medium during the adsorption and cold storage stage.

[0065] In the first desorption flow path, the first adsorption section 21, the first intermediate heat dissipation section 24, and the first evaporation section 231 are connected in series, so that after the adsorption medium flows out of the first adsorption section 21 during the desorption and cold storage stage, it enters the first intermediate heat dissipation section 24 and the first evaporation section 231 in sequence, and is finally stored in the evaporation section 23 in a liquid form.

[0066] Optionally, a one-way valve is provided in the first desorption flow path. The one-way valve limits the adsorption medium to be transported only in the direction of "first adsorption section 21 → first intermediate heat dissipation section 24 → first evaporation section 231". Here, the one-way valve can be provided in the flow path between the first adsorption section 21 and the first intermediate heat dissipation section 24, or it can be provided in the flow path between the first intermediate heat dissipation section 24 and the first evaporation section 231.

[0067] In the first adsorption flow path, the first evaporation section 231 and the first adsorption section 21 are connected in series, so that after the adsorption medium flows out of the first evaporation section 231 during the adsorption cooling stage, it enters the first adsorption section 21 through the first adsorption flow path and is re-adsorbed by the adsorbent in the first adsorption section 21.

[0068] Optionally, a one-way valve is provided in the first adsorption flow path, which limits the adsorption medium to be transported only in the direction of "first evaporation section 231 → first adsorption section 21".

[0069] Optionally, the first desorption flow path can be set as the main flow path, and the first adsorption flow path can be set in parallel with the first intermediate heat dissipation part 24. Therefore, the non-parallel flow path section of the first desorption flow path near the first adsorption part 21 can also be used for the transport of the adsorption medium during the adsorption cooling stage.

[0070] Similarly, a second adsorption medium transport path is constructed between the second adsorption section 22 and the second evaporation section 232 of the second adsorption refrigeration system, and the adsorption medium can flow between the second adsorption section 22, the second intermediate heat dissipation section 25 and the second evaporation section 232 via the second adsorption medium transport path.

[0071] Here, the second adsorption medium transport path includes a second desorption flow path and a second adsorption flow path, wherein the second desorption flow path is the flow path used for transporting the adsorption medium during the desorption and cold storage stage, and the second adsorption flow path is the flow rate used for transporting the adsorption medium during the adsorption and cold storage stage.

[0072] Here, the configuration of the second adsorption medium transport path can refer to the first adsorption medium transport path in the previous embodiment, and will not be described again here.

[0073] In this embodiment, the adsorption refrigeration system further includes three control valves. A first control valve 26 is disposed on the first adsorption medium conveying flow path to control the on / off state and flow rate of the first adsorption medium conveying flow path. A second control valve 27 is disposed on the second adsorption medium conveying flow path to control the on / off state and flow rate of the second adsorption medium conveying flow path. A third control valve 28 is disposed on the third adsorption medium conveying flow path to control the on / off state and flow rate of the third adsorption medium conveying flow path. Here, each control valve is disposed on a non-parallel flow path section of the desorption flow path near the corresponding adsorption section in the above embodiment, thereby enabling flow control of both the desorption and adsorption refrigeration stages of the adsorption section using only one control valve.

[0074] Alternatively, a control valve can be installed on each of the desorption and adsorption paths of each adsorption medium transport path to control the on / off state and flow rate of the corresponding path.

[0075] The following describes the cooperative operation of the adsorption refrigeration system and the refrigerant heat exchange system in the embodiments of this disclosure:

[0076] In this embodiment, the operating modes of the adsorption refrigeration system mainly include desorption cold storage mode and adsorption refrigeration mode. The desorption cold storage mode corresponds to the desorption cold storage stage in the previous embodiment, which is mainly used to accumulate "cold energy". The adsorption refrigeration mode corresponds to the adsorption refrigeration stage in the previous embodiment, which is mainly used to release the "cold energy" accumulated in the desorption cold storage stage, thereby achieving cooling of the indoor side where it is located.

[0077] Here, the adsorption refrigeration system operates in desorption cold storage mode under the premise that the refrigerant heat exchange system is operating in refrigerant refrigeration mode or refrigerant dehumidification mode. Here, when the refrigerant heat exchange system is operating in refrigerant refrigeration mode, the outdoor heat exchanger 12 and the compressor 13 simultaneously release heat. After the heat is transferred to the first adsorption section 21 and the second adsorption section 22, the adsorbent medium adsorbed by the adsorbent in the two adsorption sections absorbs heat and desorbs into gaseous adsorbent medium. Then, it enters its corresponding intermediate heat dissipation section through the desorption flow path for condensation. The liquid adsorbent medium obtained by condensation enters the first evaporation section 231 and the second evaporation section 232 respectively to serve as the stored "cold energy".

[0078] The adsorption refrigeration system operates in adsorption refrigeration mode only when the refrigerant heat exchange system is not in refrigerant refrigeration mode or refrigerant dehumidification mode. Here, when the refrigerant heat exchange system is not running in refrigerant cooling mode or refrigerant dehumidification mode, both the outdoor heat exchanger 12 and the compressor 13 stop working and do not release heat to the outside. Therefore, the temperature of the first adsorption section 21 is lower than when the outdoor heat exchanger 12 releases heat, and the temperature of the second adsorption section 22 is also lower than when the compressor 13 releases heat. This causes the adsorbent in the two adsorption sections to begin to re-adsorb the adsorption medium. Under the combined influence of various factors such as the concentration of the adsorption medium, pressure, and indoor ambient temperature, the liquid adsorption medium in the first evaporation section 231 and the second evaporation section 232 begins to absorb heat and evaporate into a gaseous adsorption medium, and flows back to the first adsorption section 21 and the second adsorption section 22 through their respective adsorption flow paths. In this process, the adsorption medium absorbs heat from the indoor environment, and after the adsorption medium is re-adsorbed by the adsorbent, it releases the heat to the outdoor environment where the adsorption section is located. Therefore, by the adsorption medium flow that is reversed compared to the desorption and cold storage stage, adsorption cooling and temperature reduction of the indoor environment can be achieved.

[0079] Here, in both the desorption cold storage mode and the adsorption refrigeration mode, only one of the first adsorption section 21 and the second adsorption section 22 may be activated, or both of the first adsorption section 21 and the second adsorption section 22 may be activated. Similarly, only one of the first evaporation section 231 and the second evaporation section 232 may be activated, or both of the first evaporation section 231 and the second evaporation section 232 may be activated.

[0080] For example, in the adsorption refrigeration mode, one control method is to activate only the first adsorption section 21, while the evaporation section can be controlled to activate only the first evaporation section 231 (the fourth adsorption medium transport flow path between the first evaporation section 231 and the second evaporation section 232 is disconnected), or activate both the first evaporation section 231 and the second evaporation section 232 (the fourth adsorption medium transport flow path between the first evaporation section 231 and the second evaporation section 232 is connected). In this way, the heat absorption rate can be changed by changing the number of activated evaporation sections.

[0081] The on / off state of the fourth adsorption medium transport path between the first evaporation section 231 and the second evaporation section 232 is controlled by the fourth control valve 29 installed thereon.

[0082] Figure 2 This is a schematic flowchart of a control method for a dual-cooling air conditioner provided in an embodiment of this disclosure.

[0083] like Figure 2 As shown in the embodiments of this disclosure, a control method for a dual-cooling air conditioner is provided. Optionally, this control method can be applied to, for example... Figure 1 The dual-cooling air conditioner shown in the embodiment; this control method can be used to solve the problem in the prior art that it does not utilize both refrigerant refrigeration and adsorption refrigeration technologies to achieve air conditioning cooling; in the embodiment, the main process steps of the control method include:

[0084] S201. When the dual-cooling air conditioner is in the first operating mode, obtain the outdoor ambient temperature on the outdoor side.

[0085] In this embodiment, the first mode includes: the refrigerant heat exchange system is in standby or shutdown mode, and the adsorption refrigeration system is in adsorption refrigeration mode.

[0086] In this embodiment, when the adsorption refrigeration system operates in adsorption refrigeration mode, the liquid adsorption medium in the evaporator is accumulated during the previous one or more runs of the refrigerant refrigeration mode of the dual-refrigeration air conditioner.

[0087] Here, when the refrigerant heat exchange system is operating in refrigerant cooling mode, the adsorption refrigeration system is in desorption cold storage mode. The outdoor heat exchanger discharges heat, causing the ambient temperature to rise. Therefore, the adsorbent medium in the adsorption section of the adsorption refrigeration system, located near the outdoor heat exchanger, absorbs heat and detaches from the adsorbent, achieving "desorption." The desorbed adsorbent medium flows to the intermediate heat exchange section via the adsorbent medium transport path. Here, the temperature of the intermediate heat exchange section is lower than that of the outdoor heat exchanger. Therefore, the adsorbent medium releases heat and condenses, continuing to flow into the indoor evaporator section via the adsorbent medium transport path, achieving "cold storage." After the dual-cooling air conditioner stops operating in refrigerant cooling mode, the adsorption refrigeration system exits the desorption cold storage mode, and the adsorbent medium transport path is blocked, preventing the adsorbent medium from flowing back to the adsorption section.

[0088] Therefore, when the adsorption refrigeration system needs to operate in adsorption refrigeration mode, the adsorption medium transport path can be opened. Here, when the adsorption refrigeration system is operating in adsorption refrigeration mode, the refrigerant heat exchange system is in standby or off state, and the outdoor heat exchanger of the refrigerant heat exchange system does not discharge heat to the outside, thus avoiding the problem of the adsorption refrigeration mode failing to operate normally due to excessively high outdoor heat exchanger temperature. The ambient temperature around the outdoor heat exchanger is close to the ambient temperature around the outdoor heat exchanger after the dual-refrigeration air conditioner stopped operating in refrigerant refrigeration mode during desorption and cold storage. The adsorption section can also re-adsorb the adsorption medium, thereby causing the liquid adsorption medium in the evaporation section to absorb heat and evaporate under the action of adsorption pressure, thus achieving the purpose of adsorption refrigeration.

[0089] When operating in the first mode, the refrigerant heat exchange system is in shutdown or standby mode. The indoor environment is cooled by using adsorption refrigeration mode instead of refrigerant refrigeration mode, which can reduce the operating energy consumption of the refrigerant heat exchange system and reduce the cost of using air conditioning.

[0090] In some optional embodiments, the outdoor unit of the dual-cooling air conditioner is equipped with a temperature sensor, which can be used to detect the real-time temperature of the outdoor environment where the outdoor unit is located; therefore, the outdoor ambient temperature in step S201 can be obtained by detecting the temperature sensor.

[0091] S202. If the outdoor ambient temperature is greater than the set external ambient temperature threshold, the adsorption refrigeration mode is controlled according to the first connection relationship.

[0092] In some optional embodiments, the set external ambient temperature threshold is a parameter used to characterize the influence of outdoor ambient temperature on the adsorption of the adsorption medium in the first and second adsorption sections. Here, in adsorption-cooling mode, the adsorption medium in the evaporation section absorbs heat from the indoor side and evaporates into a gaseous adsorption medium. It then flows back to the adsorption section along the adsorption medium transport path and is adsorbed by the adsorbent in the adsorption section, releasing heat. Therefore, the heat dissipation rate of the adsorption section affects the adsorption efficiency of the adsorbent on the adsorption medium. Here, the adsorption section exchanges heat with the outdoor environment, so the outdoor ambient temperature determines the heat dissipation rate of the adsorption section. In this embodiment, when the outdoor ambient temperature is greater than the set external ambient temperature threshold, the higher outdoor ambient temperature has a greater impact on the heat dissipation rate of the two adsorption sections, while when the outdoor ambient temperature is less than or equal to the set external ambient temperature threshold, the impact on the heat dissipation rate of the two adsorption sections is smaller.

[0093] Optionally, the first evaporation section and the second evaporation section are connected through a first adsorption medium transport path, the first adsorption section and the first evaporation section are connected through a second adsorption medium transport path, the second adsorption section and the second evaporation section are connected through a third adsorption medium transport path, and the second adsorption section and the first adsorption section are connected through a fourth adsorption medium transport path. Here, each of the above four adsorption medium transport paths is provided with a control valve that can control its on / off state. In this embodiment, the opening or closing state of the control valves on different adsorption medium transport paths can be controlled to realize the conduction or blocking operation of the corresponding adsorption medium transport path.

[0094] In this embodiment, when the outdoor ambient temperature is greater than a set external ambient temperature threshold, the adsorption cooling mode is controlled according to a first connectivity relationship. This first connectivity relationship includes: the first evaporation section is disconnected from the first adsorption section, the second evaporation section remains connected to the second adsorption section, and the first evaporation section remains connected to the second evaporation section.

[0095] Here, when the outdoor ambient temperature is greater than the set external ambient temperature threshold, the indoor ambient temperature has a significant impact on the adsorption process of the medium in both the first and second adsorption sections. However, since the desorption amount and desorption efficiency of the second adsorption section, which is affected by the compressor's heat dissipation temperature during the desorption and cold storage stage, are higher than those of the first adsorption section, which is affected by the outdoor heat exchanger, the adsorption capacity of the second adsorption section for the adsorption medium is higher than that of the first adsorption section during the adsorption refrigeration stage. Therefore, in this embodiment, the connection relationship between the various components of the adsorption refrigeration system is adjusted by the first connection relationship, disconnecting the first evaporation section from the first adsorption section while keeping the second evaporation section connected to the second adsorption section. This allows only the second adsorption section to be used for adsorption of the adsorption medium, resulting in a better cooling effect. At the same time, the first evaporation section is kept connected to the second evaporation section, so that the liquid adsorption medium in the first evaporation section can also be adsorbed by the second adsorption section through the second evaporation section, thereby improving the heat absorption efficiency of the two evaporation sections.

[0096] In this embodiment, when controlling according to the first connection relationship, it can be achieved by closing the control valve on the second adsorption medium conveying flow path and opening the control valves on the first adsorption medium conveying flow path and the third adsorption medium conveying flow path.

[0097] The control method for a dual-cooling air conditioner provided in this disclosure can adjust the on / off state of the pipeline connection of the adsorption refrigeration system in the adsorption refrigeration stage according to the outdoor ambient temperature when the dual-cooling air conditioner is operating in the first mode. The cooling capacity of the adsorption refrigeration is accumulated by utilizing the heat discharged from the refrigerant heat exchange system in the desorption storage stage. By changing the on / off state of the pipeline connection, the transport mode of the adsorption medium in the two evaporation sections and their corresponding two adsorption sections can be adjusted, thereby adapting the operating state of the adsorption refrigeration system to the current operating conditions to ensure the working efficiency of the adsorption refrigeration mode. This disclosure does not simply superimpose two refrigeration systems into the same air conditioner; rather, it cleverly combines two refrigeration structures and the two processes of refrigerant refrigeration and desorption storage, fully considering the refrigeration principles of both. This not only simplifies the product structure of the combined air conditioner but also effectively improves the overall cooling performance of the air conditioner.

[0098] In some optional embodiments, the first adsorption medium flow rate is determined based on a first temperature difference between the compressor casing temperature and the outdoor ambient temperature; wherein, the first adsorption medium flow rate is the flow rate from the second evaporation section to the second adsorption section in the adsorption refrigeration mode; and the compressor casing temperature is detected when the adsorption refrigeration system is in the desorption cold storage mode.

[0099] Here, when the refrigerant heat exchange system is operating in refrigerant cooling mode, the adsorption refrigeration system is in desorption cold storage mode. Since the second adsorption section is located near the compressor, the compressor casing temperature reflects the desorption rate of the second adsorption section under that temperature condition. The outdoor ambient temperature is detected when the adsorption refrigeration system is in adsorption refrigeration mode, and it can affect the heat dissipation of the second adsorption section. Therefore, the difference between the different temperature environments in which the second adsorption section is located in the desorption cold storage and adsorption refrigeration stages can affect the adsorption efficiency of the adsorption medium. Therefore, in this embodiment, the flow rate of the first adsorption medium is controlled according to the first temperature difference between the compressor casing temperature and the outdoor ambient temperature to adapt it to the current flow delivery requirements.

[0100] Optionally, the first adsorption medium flow rate is determined based on a first temperature difference between the compressor casing temperature and the outdoor ambient temperature, including: when the first temperature difference is less than or equal to a first set temperature difference threshold, the first adsorption medium flow rate is the first flow rate; when the first temperature difference is greater than the first set temperature difference threshold, the first adsorption medium flow rate is the second flow rate; wherein, the first flow rate is less than the second flow rate.

[0101] Here, the flow rate of the first adsorption medium is positively correlated with the first temperature difference. That is, the larger the first temperature difference, the stronger the adsorption capacity of the second adsorption unit, and the larger the flow rate of the first adsorption medium is set; conversely, the flow rate of the first adsorption medium is set to a smaller value.

[0102] In this embodiment, the control valve installed on the third adsorption medium conveying flow path can not only control the on / off state of the third adsorption medium conveying flow path, but also adjust the flow rate of the adsorption medium flowing through the third adsorption medium conveying flow path by changing the flow opening.

[0103] Optionally, the outdoor unit of the dual-cooling air conditioner is also equipped with a temperature sensor, which is located on the compressor body and can be used to detect the real-time temperature of the compressor body casing; therefore, the compressor casing temperature can be detected by this temperature sensor.

[0104] In some optional embodiments, the control method for dual-cooling air conditioners disclosed herein further includes: if the outdoor ambient temperature is less than or equal to a set external ambient temperature threshold, controlling the operation of the adsorption cooling mode according to a second connectivity relationship.

[0105] In this embodiment, when the outdoor ambient temperature is less than or equal to a set external ambient temperature threshold, the heat dissipation rate of the two adsorption sections is minimally affected. Therefore, the adsorption cooling mode is controlled according to the second connectivity relationship. This second connectivity relationship includes: the first evaporation section and the first adsorption section maintaining communication; the second evaporation section and the second adsorption section maintaining communication; and the first evaporation section and the second evaporation section maintaining communication. Here, compared to the first connectivity relationship, the second connectivity relationship maintains communication between the first evaporation section and the first adsorption section, allowing the liquid adsorption medium of the first evaporation section to be transported to the first evaporation section via the second adsorption medium transport path. This allows for simultaneous transport of the adsorption medium with the second adsorption section, effectively improving the cooling capacity and efficiency of the indoor environment.

[0106] In this embodiment, when controlling according to the first connection relationship, it can be achieved by opening the control valves on the first adsorption medium delivery path, the second adsorption medium delivery path, and the third adsorption medium delivery path.

[0107] In some optional embodiments, the second adsorption medium flow rate is determined based on a second temperature difference between the external coil temperature of the outdoor heat exchanger and the outdoor ambient temperature; wherein, the second adsorption medium flow rate is the flow rate from the first evaporation section to the first adsorption section in the adsorption refrigeration mode; and the external coil temperature of the outdoor heat exchanger is detected when the adsorption refrigeration system is in the desorption cold storage mode.

[0108] In some optional embodiments, the second adsorption medium flow rate is determined based on a second temperature difference between the external coil temperature of the outdoor heat exchanger and the outdoor ambient temperature; wherein, the second adsorption medium flow rate is the flow rate from the first evaporation section to the first adsorption section in the adsorption refrigeration mode; and the external coil temperature of the outdoor heat exchanger is detected when the adsorption refrigeration system is in the desorption cold storage mode.

[0109] Here, when the refrigerant heat exchange system is operating in refrigerant cooling mode, the adsorption refrigeration system is in desorption cold storage mode. Since the first adsorption section is located near the outdoor heat exchanger, the temperature of the outer coil of the outdoor heat exchanger reflects the desorption rate of the first adsorption section under that temperature condition. The outdoor ambient temperature is detected when the adsorption refrigeration system is in adsorption refrigeration mode, and it can affect the heat dissipation of the first adsorption section. Therefore, the difference between the different temperature environments in which the first adsorption section is located in the two stages of desorption cold storage and adsorption refrigeration can affect the adsorption efficiency of the adsorption medium. Therefore, in this embodiment, the flow rate of the second adsorption medium is controlled according to the second temperature difference between the outer coil temperature of the outdoor heat exchanger and the outdoor ambient temperature to adapt it to the current flow delivery requirements.

[0110] Optionally, the second adsorption medium flow rate is determined based on the second temperature difference between the outdoor coil temperature of the outdoor heat exchanger and the outdoor ambient temperature, including: when the second temperature difference is less than or equal to the second set temperature difference threshold, the second adsorption medium flow rate is the third flow rate; when the second temperature difference is greater than the second set temperature difference threshold, the second adsorption medium flow rate is the fourth flow rate; wherein, the third flow rate is less than the fourth flow rate.

[0111] Here, the flow rate of the second adsorption medium is positively correlated with the second temperature difference. That is, the larger the second temperature difference, the stronger the adsorption capacity of the first adsorption section, and the larger the flow rate of the second adsorption medium is set; conversely, the flow rate of the second adsorption medium is set to a smaller value.

[0112] In this embodiment, the control valve installed on the second adsorption medium conveying flow path can not only control the on / off state of the second adsorption medium conveying flow path, but also adjust the flow rate of the adsorption medium flowing through the second adsorption medium conveying flow path by changing the flow opening.

[0113] Optionally, the outdoor unit of the dual-cooling air conditioner is also equipped with a temperature sensor, which is located at the coil position of the outdoor heat exchanger and can be used to detect the real-time temperature of the outdoor heat exchanger coil; therefore, the temperature of the outdoor coil can be detected by this temperature sensor.

[0114] In some optional embodiments, the control method for a dual-cooling air conditioner disclosed herein further includes: controlling the adsorption refrigeration system to exit the adsorption refrigeration mode when the conditions for completing adsorption refrigeration are met.

[0115] In this embodiment, the adsorption refrigeration completion condition is a judgment condition used to characterize whether the adsorption refrigeration system has refrigeration capacity. If the adsorption refrigeration completion condition is met, the adsorption refrigeration system does not have refrigeration capacity, and the adsorption refrigeration system is controlled to exit the adsorption refrigeration mode. If the adsorption refrigeration completion condition is not met, the adsorption refrigeration system still has refrigeration capacity, and the adsorption refrigeration system is controlled to continue running the adsorption refrigeration mode.

[0116] Optionally, the conditions for completing adsorption refrigeration include: the amount of adsorbent medium in the first evaporation section is less than or equal to a first set medium amount threshold, and the amount of adsorbent medium in the second evaporation section is less than or equal to a second set medium amount threshold.

[0117] Optionally, the first set medium quantity threshold is 10%, 20%, etc., of the maximum adsorption medium quantity of the first evaporation section; the second set medium quantity threshold is 10%, 20%, etc., of the maximum adsorption medium quantity of the second evaporation section.

[0118] Here, the adsorption medium in the evaporation section exists in liquid form. Therefore, the change in the amount of adsorption medium can also be reflected by the liquid level. This disclosure provides a liquid level sensor in the evaporation section. The liquid level sensor can be used to detect the change in the liquid level of the liquid adsorption medium in the evaporation section, and then determine the amount of adsorption medium in the evaporation section by the change in the liquid level.

[0119] In the above embodiments, the steps of the control method for dual-cooling air conditioners disclosed herein further include: when the adsorption refrigeration system enters the adsorption refrigeration mode, controlling the outdoor fan to run at a first speed; and when the adsorption refrigeration system enters the desorption cold storage mode, controlling the outdoor fan to run at a second speed.

[0120] In this embodiment, the first rotational speed is greater than the second rotational speed. Here, when the adsorption refrigeration system enters the adsorption refrigeration mode, the outdoor fan is controlled to operate at the higher first rotational speed to improve the heat dissipation effect of the adsorption section, thereby enhancing the refrigeration effect of the adsorption refrigeration system. However, when the adsorption refrigeration system enters the desorption cold storage mode, the heat from the outdoor heat exchanger of the refrigerant heat exchange system is mainly used for the desorption of the adsorbent medium in the adsorption section. Therefore, controlling the outdoor fan to operate at the lower second rotational speed reduces the amount of heat dissipated into the outdoor environment by the outdoor fan, allowing the heat to concentrate in the surrounding environment of the adsorption section, thus increasing the desorption rate. Here, the dual-cooling air conditioner flexibly adjusts the outdoor fan speed according to the start / stop status of the adsorption refrigeration system's operating mode, which can improve both the adsorption refrigeration effect and the cold storage effect in the desorption cold storage mode.

[0121] For example, when the adsorption refrigeration system enters the adsorption refrigeration mode, the first speed of the outdoor fan is 700 r / min; while when the adsorption refrigeration system enters the desorption cold storage mode, the second speed of the outdoor fan is 400 r / min.

[0122] Figure 3 This is a schematic diagram of the structure of the control device for a dual-cooling air conditioner provided in an embodiment of this disclosure.

[0123] This disclosure provides a control device for a dual-cooling air conditioner, the structure of which is as follows: Figure 3 As shown, it includes:

[0124] The processor 300 and memory 301 may further include a communication interface 302 and a bus 303. The processor 300, communication interface 302, and memory 301 can communicate with each other via the bus 303. The communication interface 302 can be used for information transmission. The processor 300 can call logical instructions stored in the memory 301 to execute the control method for a dual-cooling air conditioner described in the above embodiment.

[0125] Furthermore, the logic instructions in the aforementioned memory 301 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0126] The memory 301, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 300 executes functional applications and data processing by running the program instructions / modules stored in the memory 301, thereby implementing the control method for a dual-cooling air conditioner in the above method embodiments.

[0127] The memory 301 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 301 may include high-speed random access memory and may also include non-volatile memory.

[0128] Here, the dual-cooling air conditioner provided in this disclosure also includes the control device for the dual-cooling air conditioner shown in the foregoing embodiments.

[0129] This disclosure also provides a computer-readable storage medium storing computer-executable instructions configured to execute the above-described control method for a dual-cooling air conditioner.

[0130] This disclosure also provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions that, when executed by a computer, cause the computer to perform the above-described control method for a dual-cooling air conditioner.

[0131] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0132] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0133] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or replace parts and features of other embodiments. The scope of the embodiments of this disclosure includes the entire scope of the claims and all available equivalents of the claims. While the terms “first,” “second,” etc., may be used in this application to describe elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be called a second element without changing the meaning of the description, and similarly, a second element may be called a first element, provided that all occurrences of “first element” are consistently renamed and all occurrences of “second element” are consistently renamed. First and second elements are both elements, but may not be the same element. Moreover, the terminology used in this application is only for describing embodiments and is not intended to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Similarly, the term “and / or” as used herein means including one or more of the associated listed elements and all possible combinations thereof. Additionally, when used herein, the terms “comprise” and its variations “comprises” and / or “comprising” refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase “comprising an…” does not exclude the presence of additional identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0134] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0135] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0136] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A control method applied to a dual refrigeration air conditioner, characterized by, The double-refrigeration air conditioner comprises a refrigerant heat exchange system and an adsorption refrigeration system; wherein the adsorption refrigeration system comprises first and second evaporation parts arranged on the indoor side, and first and second adsorption parts arranged at the outdoor heat exchanger and the compressor of the refrigerant heat exchange system respectively; the first evaporation part and the first adsorption part are in communication which can be interrupted, the second evaporation part and the second adsorption part are in communication which can be interrupted; the first evaporation part and the second evaporation part are in communication which can be interrupted; the first adsorption part and the second adsorption part are in communication which can be interrupted; The control method comprises: When the double-refrigeration air conditioner operates in a first mode, an outdoor environment temperature is obtained; wherein the first mode comprises that the refrigerant heat exchange system is in standby or shutdown mode, and the adsorption refrigeration system is in adsorption refrigeration mode; If the outdoor environment temperature is greater than a set outer ring temperature threshold, the operation of the adsorption refrigeration mode is controlled according to a first communication relationship; Wherein the first communication relationship comprises that the first evaporation part and the first adsorption part are disconnected, the second evaporation part and the second adsorption part remain connected, and the first evaporation part and the second evaporation part remain connected; Wherein the first adsorption medium flow is determined according to a first temperature difference between the shell temperature of the compressor and the outdoor environment temperature; the first adsorption medium flow is the flow from the second evaporation part to the second adsorption part in the adsorption refrigeration mode; the shell temperature of the compressor is detected when the adsorption refrigeration system is in desorption and cold storage mode; If the outdoor environment temperature is less than or equal to the set outer ring temperature threshold, the operation of the adsorption refrigeration mode is controlled according to a second communication relationship; wherein the second communication relationship comprises that the first evaporation part and the first adsorption part remain connected, the second evaporation part and the second adsorption part remain connected, and the first evaporation part and the second evaporation part remain connected.

2. The control method according to claim 1, characterized by, The first adsorption medium flow is determined according to a first temperature difference between the shell temperature of the compressor and the outdoor environment temperature, comprising: When the first temperature difference is less than or equal to a first set temperature difference threshold, the first adsorption medium flow is a first flow; When the first temperature difference is greater than the first set temperature difference threshold, the first adsorption medium flow is a second flow; Wherein the first flow is less than the second flow.

3. The control method according to claim 1, characterized by, The second adsorption medium flow is determined according to a second temperature difference between the outdoor heat exchanger's outer coil temperature and the outdoor environment temperature; Wherein the second adsorption medium flow is the flow from the first evaporation part to the first adsorption part in the adsorption refrigeration mode; the outdoor heat exchanger's outer coil temperature is detected when the adsorption refrigeration system is in desorption and cold storage mode.

4. The control method according to claim 3, characterized by The second adsorption medium flow is determined according to a second temperature difference between the outdoor heat exchanger's outer coil temperature and the outdoor environment temperature, comprising: When the second temperature difference is less than or equal to a second set temperature difference threshold, the second adsorption medium flow is a third flow; when the second temperature difference value is greater than the second set temperature difference threshold value, the second adsorption medium flow rate is a fourth flow rate; wherein the third flow rate is less than the fourth flow rate.

5. The control method according to any one of claims 1 to 4, characterized by, Further comprising: when an adsorption refrigeration completion condition is met, controlling the adsorption refrigeration system to exit the adsorption refrigeration mode.

6. The control method according to claim 5, characterized by The adsorption refrigeration completion condition includes: an adsorption medium mass of the first evaporation section is less than or equal to a first set medium mass threshold value, and an adsorption medium mass of the second evaporation section is less than or equal to a second set medium mass threshold value.

7. A control device for a dual refrigerant air conditioner, characterized by comprising: The dual refrigeration air conditioner includes a refrigerant heat exchange system and an adsorption refrigeration system; wherein the adsorption refrigeration system includes first and second evaporation sections arranged on an indoor side, and first and second adsorption sections arranged at an outdoor heat exchanger and a compressor of the refrigerant heat exchange system, respectively; the first evaporation section and the first adsorption section are in communication and can be interrupted, the second evaporation section and the second adsorption section are in communication and can be interrupted; the first evaporation section and the second evaporation section are in communication and can be interrupted; the first adsorption section and the second adsorption section are in communication and can be interrupted; The control device includes a processor and a memory storing program instructions, and the processor is configured to execute the program instructions to perform the control method for a dual refrigeration air conditioner according to any one of claims 1 to 6.

8. A dual refrigeration air conditioner characterized by, Comprising: a refrigerant heat exchange system including an indoor heat exchanger, an outdoor heat exchanger, a compressor, and a throttling device; one or more adsorption refrigeration systems, each of which includes: first and second evaporation sections arranged at the indoor heat exchanger of the refrigerant heat exchange system, and a first adsorption medium conveying flow path is configured between the first and second evaporation sections and can be interrupted; a first adsorption section arranged at the outdoor heat exchanger of the refrigerant heat exchange system, and a second adsorption medium conveying flow path is configured between the first adsorption section and the first evaporation section and can be interrupted; a second adsorption section arranged at the compressor of the refrigerant heat exchange system, a third adsorption medium conveying flow path is configured between the second adsorption section and the second evaporation section and can be interrupted, and a fourth adsorption medium conveying flow path is configured between the second adsorption section and the first adsorption section and can be interrupted; The control device for a dual refrigeration air conditioner according to claim 7.

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