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 evaporation part temperature set of an adsorption refrigeration system group is acquired; the first mode comprises that a refrigerant heat exchange system is in a refrigerant refrigeration mode and the adsorption refrigeration system group is in a desorption cold storage mode; the evaporation part temperature set comprises a first temperature of an evaporation part of each adsorption refrigeration system; and the operation state of the desorption cold storage mode of one or more adsorption refrigeration systems in the adsorption refrigeration system group is controlled according to the evaporation part temperature set of the adsorption refrigeration system group. In the control method, the temperature change of the evaporation part can reflect the operation state of the adsorption refrigeration system group, and the desorption cold storage mode is adjusted accordingly, so that accurate control of the desorption cold storage process when the refrigerant heat exchange system is refrigerating can be realized. The application further discloses a control device for the double-refrigeration air conditioner and the double-refrigeration air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioner intelligent refrigeration, for example to a control method and control device for a dual refrigeration air conditioner and the dual refrigeration air conditioner. BACKGROUND

[0002] With the progress of science and technology in the world today, the structural design and refrigeration performance of air conditioners have also been greatly developed. At present, air conditioners are mainly divided into the following types from the refrigeration principle:

[0003] (1) refrigerant refrigeration, which utilizes the principle of heat absorption or release of refrigerant in the gas-liquid phase change process, so as to discharge indoor heat to the outdoor environment;

[0004] (2) adsorption refrigeration, which utilizes the principle of heat release and absorption in the adsorption and desorption processes of refrigerant by adsorbent to realize the transfer of indoor heat;

[0005] (3) vapor injection refrigeration, which relies on the suction of vapor ejector to evaporate the refrigerant in the vacuum environment generated by suction to achieve the purpose of refrigeration;

[0006] (4) thermoelectric refrigeration, which utilizes the inverse reaction of the "Seebeck" effect, i.e. the Peltier effect, to achieve the purpose of refrigeration. The common thermoelectric refrigeration method is semiconductor refrigeration.

[0007] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0008] In the above refrigeration technologies, refrigerant refrigeration and adsorption refrigeration are refrigeration operations realized by different refrigeration structural designs respectively, and each has advantages and disadvantages. At present, air conditioner products generally only adopt one of the refrigeration structural designs to perform refrigeration by a single refrigeration technology. Therefore, how to apply the above two refrigeration technologies to the same air conditioner and effectively improve its performance is a new idea for air conditioner product design. SUMMARY

[0009] To provide a basic understanding of some aspects of the disclosed embodiments, the following summary has been provided. The summary is not an extensive overview of the application. It is not intended to identify key / critical elements of the embodiments or to delineate the scope of the embodiments, but to present some aspects of the embodiments in a simplified form as a prelude to the more detailed description that is presented later.

[0010] The embodiments of the present disclosure provide a control method and control device for a dual refrigeration air conditioner and the dual refrigeration air conditioner to solve the technical problem that the two refrigeration technologies of refrigerant refrigeration and adsorption refrigeration are not used together to realize air conditioner refrigeration work in the prior art.

[0011] In some embodiments, the control method for the dual-refrigeration air conditioner comprises:

[0012] When the dual-refrigeration air conditioner operates in a first mode, an evaporation part temperature set of the adsorption refrigeration system group is obtained; wherein the first mode comprises: the refrigerant heat exchange system is in a refrigerant refrigeration mode, and the adsorption refrigeration system group is in a desorption cold accumulation mode; the evaporation part temperature set comprises a first temperature of the evaporation part of each adsorption refrigeration system.

[0013] According to the evaporation part temperature set of the adsorption refrigeration system group, the operating state of the desorption cold accumulation mode of one or more adsorption refrigeration systems in the adsorption refrigeration system group is controlled.

[0014] In some embodiments, the control device for the dual-refrigeration air conditioner comprises:

[0015] The processor and the memory having program instructions stored therein, the processor being configured to execute the control method for the dual-refrigeration air conditioner as in some embodiments above when executing the program instructions.

[0016] In some embodiments, the dual-refrigeration air conditioner comprises:

[0017] The refrigerant heat exchange system mainly comprises an indoor heat exchanger, an outdoor heat exchanger, a compressor and a throttling device;

[0018] The adsorption refrigeration system group is composed of one or more adsorption refrigeration systems, and each adsorption refrigeration system comprises:

[0019] The evaporation part is arranged at the indoor heat exchanger of the refrigerant heat exchange system;

[0020] The adsorption part is arranged at the outdoor heat exchanger of the refrigerant heat exchange system, and an adsorption medium conveying flow path is constructed between the adsorption part and the evaporation part;

[0021] The control device for the dual-refrigeration air conditioner as in some embodiments above.

[0022] The control method, device and dual-refrigeration air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0023] The control method for the double refrigeration air conditioner provided by the embodiments of the present disclosure can adjust the operation state of the desorption and cold storage mode of the adsorption refrigeration system according to the temperature of each evaporation part of the adsorption refrigeration system group, wherein the heat source of the desorption and cold storage of the adsorption refrigeration system is the heat discharged by the outdoor heat exchanger when the refrigerant heat exchange system is refrigerating, and the temperature change of the evaporation part can reflect the operation state of the adsorption refrigeration system group, and the desorption and cold storage mode can be adjusted accordingly to realize accurate control of the desorption and cold storage process when the refrigerant heat exchange system is refrigerating. Therefore, the embodiments of the present disclosure are not simply superimposing two refrigeration systems in the same air conditioner, but fully considering the refrigeration principles of the two systems to skillfully realize the combination of two sets of refrigeration structures and the refrigeration and desorption and cold storage processes. The product structure of the combined air conditioner is simplified, and the air conditioning system performance is effectively improved.

[0024] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and are not intended to be limiting of the embodiments, in which like reference numerals refer to like elements in the drawings and in which:

[0026] Figure 1 is a structural schematic diagram of a double refrigeration air conditioner provided by the embodiments of the present disclosure;

[0027] Figure 2 is a flowchart of a control method for a double refrigeration air conditioner provided by the embodiments of the present disclosure;

[0028] Figure 3 is a structural schematic diagram of a control device for a double refrigeration air conditioner provided by the embodiments of the present disclosure. DETAILED DESCRIPTION

[0029] In order to enable a person skilled in the art to more fully understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0030] Figure 1 is a structural schematic diagram of a double refrigeration air conditioner provided by the embodiments of the present disclosure;

[0031] As Figure 1As shown, the embodiment of the present disclosure provides a dual refrigeration air conditioner, which comprises a refrigerant heat exchange system and an adsorption refrigeration system; wherein the refrigerant heat exchange system can be a single refrigeration refrigerant heat exchange system, which can be used for refrigeration, dehumidification and other functions of indoor environment, or a cold and warm refrigerant heat exchange system, which can be used for refrigeration, dehumidification and heating functions of indoor environment. The adsorption refrigeration system can be used for refrigeration function of indoor environment when it operates in adsorption refrigeration mode.

[0032] In some optional embodiments, taking the cold and warm refrigerant heat exchange system as an example, the refrigerant heat exchange system mainly comprises indoor heat exchanger 11, outdoor heat exchanger 12, compressor 13 and throttling device 14 and other components; the indoor heat exchanger 11, outdoor heat exchanger 12, throttling device 14 and compressor 13 are connected by refrigerant pipeline to form a refrigerant circulation loop, and the refrigerant flows along the flow direction set by different operation modes to realize different operation mode functions.

[0033] Here, the dual refrigeration air conditioner comprises an indoor unit and an outdoor unit, wherein the indoor heat exchanger is arranged in the indoor unit, and the indoor unit is also provided with an indoor fan for driving indoor air to exchange heat with the indoor heat exchanger 11; the outdoor heat exchanger 12 and the compressor 13 are arranged in the outdoor unit, and the outdoor unit is also provided with an outdoor fan for exchanging heat between outdoor air and the outdoor heat exchanger 12, wherein the outdoor heat exchanger 12 is arranged on the air inlet side of the outdoor fan.

[0034] In the embodiment, the operation modes of the refrigerant heat exchange system of the dual refrigeration air conditioner include refrigerant refrigeration mode, refrigerant dehumidification mode and refrigerant heating mode, etc., wherein the refrigerant refrigeration mode is generally applied in summer high temperature working condition, which is used for reducing the indoor environment temperature; the refrigerant dehumidification mode is also generally used in summer high temperature and high humidity working condition, which is used for reducing the indoor environment humidity; the refrigerant heating mode is generally applied in winter low temperature working condition, which is used for improving the indoor environment temperature.

[0035] The refrigerant flow direction set when the refrigerant heat exchange system operates in refrigerant refrigeration mode is that the high temperature refrigerant discharged by 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 returns to the compressor 13 to be compressed again; in 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, and through the circulation of the refrigerant in the refrigerant circulation loop, the indoor heat can be continuously discharged to the outdoor environment, so as to achieve the purpose of refrigeration to reduce the indoor environment temperature.

[0036] The refrigerant flow direction defined when the refrigerant heat exchange system operates in the refrigerant dehumidification mode is the same as the refrigerant flow direction in the refrigerant cooling mode. The difference is that, when the air conditioner operates in the refrigerant 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, so that the indoor heat exchanger 11 can evaporate to a lower temperature with the heat absorption of the refrigerant. In this way, when the surface temperature of the indoor heat exchanger 11 is lower than the dew point temperature of the current working 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 the humidity of the indoor air.

[0037] The refrigerant flow direction set when operating in the refrigerant heating mode is that the high-temperature refrigerant discharged by 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 returns to the compressor 13 for compression operation. In 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, the heat from the outdoor environment can be continuously released to the indoor environment, thereby achieving the purpose of heating to increase the temperature of the indoor environment.

[0038] In some optional embodiments, the components of the refrigerant heat exchange system are assembled and matched using the connection structure of the existing refrigerant heat exchange system in the prior art, which is not described here.

[0039] In some optional embodiments, the dual-refrigeration air conditioner can be provided with only one adsorption refrigeration system, or can be provided with an adsorption refrigeration system group including two or more adsorption refrigeration systems.

[0040] Taking one of the adsorption refrigeration systems as an example, the adsorption refrigeration system includes an adsorption part 21 and an evaporation part 22. The adsorption part 21 is provided at the outdoor heat exchanger 12 of the refrigerant heat exchange system and is filled with an adsorbent. It is used to release the adsorbent after absorbing heat in the desorption and cold storage stage, and to adsorb the adsorbent and release heat in the adsorption refrigeration stage. The evaporation part 22 is provided on the indoor side and is used to store liquid adsorbent from the adsorption part 21 in the desorption and cold storage stage, and to absorb heat from the indoor environment and deliver the vaporized adsorbent to the adsorption part 21 in the adsorption refrigeration stage.

[0041] In some embodiments, the adsorption part 21 is arranged between the outdoor fan and the outdoor heat exchanger 12. Here, since the outdoor heat exchanger 12 is arranged at the air inlet side of the outdoor fan, the heat dissipated by the outdoor heat exchanger 12 can flow through the adsorption part 21 arranged between the outdoor fan and the outdoor heat exchanger 12 under the driving action of the outdoor fan, so that the adsorption part 21 can absorb a large amount of heat for desorption in the desorption and cold storage stage; at the same time, the adsorption part 21 is also arranged at the air inlet side of the outdoor fan, so that the heat released by the adsorption part 21 can also be dissipated to the outdoor environment under the driving action of the outdoor fan in the adsorption refrigeration stage.

[0042] Optionally, the outdoor heat exchanger 12 is in a plate shape, and the cross-sectional profile thereof is in a form of semi-encircling the outdoor fan; therefore, in order to improve the heat exchange effect between the adsorption part 21 and the outdoor heat exchanger 12, the overall shape of the adsorption part 21 is adapted to the outdoor heat exchanger 12 in the embodiment, and is also designed in a form of semi-encircling the outdoor fan and is arranged in close contact with the outdoor heat exchanger 12, so as to effectively increase the heat exchange area between the adsorption part 21 and the outdoor heat exchanger 12 and improve the waste heat utilization efficiency of the outdoor heat exchanger 12.

[0043] Here, for the adsorption refrigeration system group, in order to enable the adsorption parts 21 of the plurality of adsorption refrigeration systems to uniformly absorb heat from the outdoor heat exchanger 12 and avoid the situation that the adsorption part 21 of an individual adsorption refrigeration system deviates from the outdoor heat exchanger 12 and thus absorbs less heat, the adsorption parts 21 of the plurality of adsorption refrigeration systems are arranged side by side, and optionally, the adsorption parts 21 of the plurality of adsorption refrigeration systems are arranged side by side along the transverse direction or the longitudinal direction of the outdoor heat exchanger 12, and the adsorption part 21 is designed in a shape adapted to the part of the corresponding outdoor heat exchanger 12, so as to ensure the heat exchange efficiency of the two.

[0044] Optionally, the adsorption medium conveying flow path is also formed between the adjacent adsorption parts 21; in this way, the gaseous adsorption medium can flow between the plurality of adsorption parts 21 in the desorption and cold storage stage and the adsorption refrigeration stage, so as to improve the desorption and cold storage effect and the adsorption refrigeration effect of the adsorption refrigeration system group as a whole.

[0045] Optionally, the evaporation part 22 is in a plate-fin structure, which can effectively improve the heat exchange effect between the adsorption medium in the evaporation part 22 and the indoor environment in the desorption and cold storage stage, and enhance the heat absorption refrigeration capacity; at the same time, the flow path for the adsorption medium is formed in the evaporation part 22, and the flow path for the adsorption medium is in communication with the adsorption medium conveying flow path.

[0046] In some optional embodiments, the indoor heat exchanger 11 is in the form of a zigzag longitudinal section and semi-encircles the indoor fan; therefore, in order to improve the heat exchange effect between the evaporation part 22 and the indoor environment, the overall shape of the evaporation part 22 in this embodiment is also designed to be in the form of semi-encircling the indoor fan and is arranged to be attached to the indoor heat exchanger 11, so as to increase the heat exchange area between the evaporation part 22 and the airflow flowing through the indoor unit and improve the heat absorption and refrigeration capacity.

[0047] Here, in order to enable the evaporation parts 22 of the plurality of adsorption refrigeration systems to uniformly absorb heat from the indoor environment, the evaporation parts 22 of the plurality of adsorption refrigeration systems are also arranged in a side-by-side manner; optionally, the evaporation parts 22 of the plurality of adsorption refrigeration systems are arranged in a side-by-side manner along the transverse direction or the longitudinal direction of the indoor heat exchanger 11, and the evaporation parts 22 are designed to be in a form that is adapted to the positions of the corresponding indoor heat exchangers 11.

[0048] Optionally, an adsorption medium conveying flow path is also constructed between adjacent evaporation parts 22; in this way, during the desorption and refrigeration storage stage and the adsorption and refrigeration storage stage, the liquid and gaseous adsorption medium can flow between the plurality of evaporation parts 22, thereby improving the desorption and refrigeration storage effect and the adsorption and refrigeration effect of the entire adsorption refrigeration system group.

[0049] In addition, the adsorption refrigeration system also comprises an intermediate heat dissipation part 23; wherein the intermediate heat dissipation part 23 is arranged on the adsorption medium conveying flow path and can be used to receive the gaseous adsorption medium conveyed by the adsorption part 21 during the desorption and refrigeration storage stage and to dissipate heat and condense the gaseous adsorption medium, so as to liquefy at least part of the gaseous adsorption medium and continue to convey the liquefied adsorption medium to the evaporation part 22 for storage.

[0050] Here, the intermediate heat dissipation part 23 is arranged on the outdoor side and is used to dissipate heat and condense the adsorption medium through heat exchange with the outdoor environment; when the refrigerant heat exchange system is running in the refrigerant refrigeration mode, the outdoor heat exchanger 12 discharges heat to the outside, and the temperature of the adsorption part 21 is generally higher than the outdoor environment temperature due to the influence of the temperature; therefore, after the gaseous adsorption medium released by the adsorption part 21 under the influence of high temperature flows into the intermediate heat dissipation part 23, the heat is dissipated to the outdoor environment, so that at least part of the gaseous adsorption medium is re-condensed into liquid.

[0051] Optionally, the intermediate heat dissipation part 23 is a horizontal flow type heat dissipator.

[0052] In some embodiments, the intermediate heat dissipation part 23 is arranged at the back plate, side plate or bottom plate position of the outdoor unit of the refrigerant heat exchange system and is arranged away from the air outlet of the outdoor unit, so as to avoid the influence of the high-temperature air discharged by the outdoor unit on the heat dissipation effect of the intermediate heat dissipation part 23.

[0053] Preferably, the intermediate heat dissipation part 23 is arranged at the bottom plate position, in this arrangement, the outdoor unit can shield the sunlight for the intermediate heat dissipation part 23, so as to provide a more suitable heat dissipation temperature environment for the intermediate heat dissipation part 23.

[0054] Alternatively, since the back plate of the outdoor unit is provided with an air inlet, the intermediate heat dissipation part 23 can also be arranged adjacent to the air inlet, so as to utilize the driving effect of the outdoor fan to accelerate the flow of the ambient air flow around the intermediate heat dissipation part 23, thereby improving the heat dissipation effect.

[0055] In the embodiment, an adsorption medium conveying flow path is constructed between the adsorption part 21 and the evaporation part 22, and the adsorption medium can flow between the adsorption part 21, the intermediate heat dissipation part 23 and the evaporation part 22 through the adsorption medium conveying flow path.

[0056] Here, the adsorption medium conveying flow path includes a desorption flow path and an adsorption flow path, wherein the desorption flow path is a flow path for conveying the adsorption medium in the desorption phase, and the adsorption flow path is a flow path for conveying the adsorption medium in the adsorption phase.

[0057] In the desorption flow path, the adsorption part 21, the intermediate heat dissipation part 23 and the evaporation part 22 are connected in series, so that after the adsorption medium in the desorption phase flows out of the adsorption part 21, it enters the intermediate heat dissipation part 23 and the evaporation part 22 in turn, and is finally stored in the evaporation part 22 in liquid form.

[0058] Optionally, a one-way valve is arranged on the desorption flow path, which limits the adsorption medium to be conveyed only in the direction of "adsorption part 21→ intermediate heat dissipation part 23→evaporation part 22"; here, the one-way valve can be arranged on the flow path between the adsorption part 21 and the intermediate heat dissipation part 23, or it can also be arranged on the flow path between the intermediate heat dissipation part 23 and the evaporation part 22.

[0059] In the adsorption flow path, the evaporation part 22 and the adsorption part 21 are connected in series, so that after the adsorption medium in the adsorption phase flows out of the evaporation part 22, it enters the adsorption part 21 through the adsorption flow path, and is re-adsorbed by the adsorbent in the adsorption part 21.

[0060] Optionally, a one-way valve is arranged on the adsorption flow path, which limits the adsorption medium to be conveyed only in the direction of "evaporation part 22→ adsorption part 21".

[0061] Optionally, the desorption flow path is arranged as the main flow path, and the adsorption flow path is arranged in parallel with the intermediate heat dissipation part 23, so that the non-parallel flow path section of the desorption flow path close to the adsorption part 21 can also be used for conveying the adsorption medium in the adsorption phase.

[0062] In the present embodiment, the adsorption refrigeration system further comprises a control valve 24 arranged on the adsorption medium conveying flow path, for controlling the on-off state and flow rate of the adsorption medium conveying flow path. Here, the control valve 24 is arranged on the non-parallel flow path section of the desorption flow path close to the adsorption part 21 in the above-mentioned embodiment, so that the flow rate on-off control of the desorption refrigeration and adsorption refrigeration two stages can be realized by only one control valve 24.

[0063] Alternatively, a control valve 24 can also be arranged on each of the desorption flow path and the adsorption flow path respectively, so as to control the on-off state and flow rate of the corresponding flow path by the respective control valve 24.

[0064] The working mode of the adsorption refrigeration system and the refrigerant heat exchange system in the present embodiment will be described below:

[0065] In the present embodiment, the operation modes of the adsorption refrigeration system mainly include a desorption refrigeration mode and an adsorption refrigeration mode, wherein the desorption refrigeration mode corresponds to the desorption refrigeration stage in the above-mentioned embodiment, and is mainly used for accumulating "cold energy"; and the adsorption refrigeration mode corresponds to the adsorption refrigeration stage in the above-mentioned embodiment, and is mainly used for releasing the "cold energy" accumulated in the desorption refrigeration stage, so as to realize the refrigeration and cooling of the indoor side.

[0066] Here, the desorption refrigeration mode of the adsorption refrigeration system is operated under the premise that the refrigerant heat exchange system is operated in the refrigerant refrigeration mode or the refrigerant dehumidification mode. Here, when the refrigerant heat exchange system is operated in the refrigerant refrigeration mode, the outdoor heat exchanger 12 releases heat, and the heat is transferred to the adsorption part 21, so that the adsorption medium adsorbed by the adsorbent in the adsorption part 21 absorbs heat and is desorbed into gaseous adsorption medium, which then enters the intermediate heat dissipation part 23 through the desorption flow path to be condensed, and the liquid adsorption medium obtained by condensation enters the evaporation part 22 to be accumulated as "cold energy".

[0067] The adsorption refrigeration mode of the adsorption refrigeration system is operated under the premise that the refrigerant heat exchange system is not operated in the refrigerant refrigeration mode or the refrigerant dehumidification mode. Here, when the refrigerant heat exchange system is not operated in the refrigerant refrigeration mode or the refrigerant dehumidification mode, the outdoor heat exchanger 12 stops working and does not release heat to the outside, so that the temperature of the adsorption part 21 is lower than when the outdoor heat exchanger 12 releases heat, so that the adsorbent in the adsorption part 21 starts to adsorb the adsorption medium again. Under the combined influence of factors such as adsorption medium concentration, pressure and indoor environment temperature, the liquid adsorption medium in the evaporation part 22 starts to absorb heat and evaporate into gaseous adsorption medium, and then flows back to the adsorption part 21 through the adsorption flow path. In this process, the adsorption medium absorbs heat from the indoor environment, and after the adsorption medium is re-adsorbed by the adsorbent, the heat is released to the outdoor environment where the adsorption part 21 is located. Therefore, through the reverse flow of the adsorption medium compared with the desorption refrigeration stage, the adsorption refrigeration and cooling of the indoor environment can be realized.

[0068] Figure 2 is a flowchart of a control method for a dual refrigeration air conditioner provided by the embodiments of the present disclosure.

[0069] As shown in Figure 2 , the embodiments of the present disclosure provide a control method for a dual refrigeration air conditioner, and optionally, the control method can be applied to the dual refrigeration air conditioner as shown in Figure 1 the embodiments; the control method can be used to solve the problem that the two refrigeration technologies of refrigerant refrigeration and adsorption refrigeration are not used together to realize air conditioning refrigeration work in the prior art; in the embodiments, the main flow steps of the control method include:

[0070] S201, when the dual refrigeration air conditioner operates in a first mode, an evaporation part temperature set of an adsorption refrigeration system group is obtained;

[0071] In the embodiments of the present disclosure, the first mode includes that the refrigerant heat exchange system is in a refrigerant refrigeration mode and the adsorption refrigeration system is in a desorption and cold storage mode.

[0072] In the summer high-temperature working condition, when the dual refrigeration air conditioner is started to operate, the default start mode of the refrigerant heat exchange system is to operate in the refrigerant refrigeration mode; in this process, the indoor heat exchanger of the refrigerant heat exchange system starts to absorb heat from the indoor environment to reduce the indoor environment temperature; at the same time, the heat absorbed by the indoor heat exchanger is transported to the outdoor heat exchanger with the refrigerant, and through the heat exchange process between the outdoor heat exchanger and the outdoor environment, the heat is discharged to the outdoor environment, at this time, the temperature of the outdoor heat exchanger is higher than that of the outdoor environment.

[0073] At the same time that the refrigerant heat exchange system operates in the refrigerant refrigeration mode, the adsorption refrigeration system is controlled to enter the desorption and cold storage mode; the outdoor heat exchanger discharges heat, so that the temperature of the surrounding environment also rises, therefore, the adsorption medium in the adsorption part of the adsorption refrigeration system arranged close to the outdoor heat exchanger absorbs heat and desorbs from the adsorbent to realize "desorption", the adsorption medium after desorption flows to the intermediate heat exchange part along the adsorption medium transport flow path, here, the temperature of the intermediate heat exchange part is lower than that of the outdoor heat exchanger, therefore, the adsorption medium releases heat and condenses, and continues to flow into the evaporation part on the indoor side along the adsorption medium transport flow path to realize "cold storage".

[0074] In the embodiments, when the refrigerant heat exchange system is in the refrigerant refrigeration mode, the compressor is started, and the refrigerant is transported in the refrigerant heat exchange system according to the refrigeration flow direction; and when the adsorption refrigeration system is in the desorption and cold storage mode, the control valve arranged on the adsorption medium transport flow path is controlled to be opened to make the flow path for transporting the adsorption medium from the adsorption part to the evaporation part conductive, with the continuous operation of the desorption and cold storage mode, the adsorption medium in the adsorption part decreases and the adsorption medium in the evaporation part increases to reserve the cold energy for the adsorption refrigeration mode in the evaporation part.

[0075] In the embodiment, the evaporator temperature set includes the first temperature of the evaporator of each adsorption refrigeration system.

[0076] Optionally, the first temperature of the evaporator can be the temperature of the external shell of the evaporator, or the temperature of the adsorbent medium in the evaporator.

[0077] Here, the adsorption refrigeration system group includes one or more independent adsorption refrigeration systems, and each adsorption refrigeration system is provided with a temperature sensor at the external shell of the evaporator of the adsorption refrigeration system. The temperature sensor can be used to detect the real-time temperature of the external shell of the evaporator, so that the first temperature of the evaporator can be obtained by the temperature data detected by the temperature sensor. Alternatively, another temperature sensor is provided in the evaporator, which can be used to detect the real-time temperature of the adsorbent medium in the evaporator, so that the first temperature of the evaporator can also be obtained by the temperature data detected by the temperature sensor.

[0078] For example, the adsorption refrigeration system group includes four adsorption refrigeration systems A, B, C and D, and in step S201, the first temperature of the evaporator of each adsorption refrigeration system is detected, and the evaporator temperature set is obtained by summarizing. In the embodiment, the evaporator temperature set includes the temperature data of the first temperature of the four evaporators, i.e., T A , T B , T C and T D .

[0079] In the embodiment, the first temperature of the evaporator of different adsorption refrigeration system groups is the temperature data corresponding to the same time point, so as to ensure the accuracy of the control.

[0080] S202, according to the evaporator temperature set of the adsorption refrigeration system group, controlling the running state of the desorption and cold storage mode of one or more adsorption refrigeration systems in the adsorption refrigeration system group.

[0081] In some optional embodiments, in step S202, according to the evaporator temperature set of the adsorption refrigeration system group, the running state of the desorption and cold storage mode of one or more adsorption refrigeration systems in the adsorption refrigeration system group is controlled, including: controlling to reduce or block the adsorbent medium delivery flow of the first adsorption refrigeration system.

[0082] Here, the first adsorption refrigeration system is the adsorption refrigeration system in the adsorption refrigeration system group that meets the first temperature condition.

[0083] Optionally, the first temperature condition is that the first temperature of the evaporator is greater than or equal to a first set temperature threshold.

[0084] Here, the adsorbent mass in the evaporation section gradually increases and the pressure increases during the desorption and cold storage mode, and at the same time, the temperature of the evaporation section shows a slow rising trend from a lower temperature starting point due to the influence of the heat remaining after the condensation of the adsorbent in the intermediate heat dissipation section. Therefore, by judging the first temperature change of the evaporation section, the change of the adsorbent mass accumulated in the evaporation section can be obtained, and it can be judged whether the adsorption refrigeration system has accumulated enough "cold" and whether the desorption and cold storage has been completed.

[0085] The first set temperature threshold is a critical temperature value obtained by experiment, which is used to represent the critical value of the refrigeration capacity of the adsorption refrigeration system. When the first temperature of the evaporation section is greater than or equal to the first set temperature threshold, it indicates that there is enough liquid adsorbent in the evaporation section of the adsorption refrigeration system, and the refrigeration capacity is high, so that the indoor environment can be cooled well, and therefore the desorption and cold storage mode can be exited. On the contrary, it indicates that there is still less liquid adsorbent in the evaporation section of the adsorption refrigeration system, and the refrigeration capacity is low, so that the desorption and cold storage mode needs to be continued to run to continue to accumulate "cold". In this way, the desorption and cold storage mode of the adsorption refrigeration system can be accurately controlled by judging the temperature of the evaporation section.

[0086] Optionally, a control valve is arranged on the adsorbent conveying flow path of each adsorption refrigeration system, which can be used to adjust the on-off state and flow of the adsorbent conveying flow path. Therefore, in this embodiment, when it is necessary to control the reduction of the adsorbent conveying flow of the first adsorption refrigeration system, the flow opening of the control valve of the first adsorption refrigeration system can be adjusted to achieve the purpose. When it is necessary to control the blockage of the adsorbent conveying flow of the first adsorption refrigeration system, the control valve of the first adsorption system can be closed to achieve the purpose.

[0087] In some optional embodiments, the step S202 of controlling the running state of the desorption and cold storage mode of one or more adsorption refrigeration systems in the adsorption refrigeration system group according to the evaporation section temperature set of the adsorption refrigeration system group comprises: controlling to increase the adsorbent conveying flow of the second adsorption refrigeration system.

[0088] In this embodiment, the second adsorption refrigeration system is an adsorption refrigeration system in the adsorption refrigeration system group that does not meet the first temperature condition.

[0089] Optionally, in this embodiment, when it is necessary to control the increase of the adsorbent conveying flow of the first adsorption refrigeration system, the flow opening of the control valve of the first adsorption refrigeration system can be adjusted to achieve the purpose.

[0090] In some optional embodiments, the step of controlling the operation state of the desorption and cold accumulation mode of one or more adsorption refrigeration systems in the adsorption refrigeration system group according to the evaporation portion temperature set of the adsorption refrigeration system group in step S202 comprises: when one of the adsorption refrigeration systems in the adsorption refrigeration system group satisfies a second temperature condition, controlling the adsorption refrigeration system group to exit the desorption and cold accumulation mode.

[0091] Optionally, the second temperature condition comprises that the first temperature of the evaporation portion is less than or equal to a third set temperature threshold.

[0092] Here, the second temperature condition is a temperature parameter for characterizing a fault problem of the adsorption refrigeration system; when the adsorption refrigeration system fails (for example, solid adsorbent powder blocks the pipeline), the adsorption medium cannot enter the evaporation portion normally, thus affecting the evaporation portion to slowly increase in temperature with the increase of the liquid adsorption medium, and thus the first temperature of the evaporation portion of the adsorption refrigeration system with a fault problem is significantly lower than that of other normally operating adsorption refrigeration systems. The second set temperature in the embodiment is a temperature value slightly higher than the initial temperature of the evaporation portion at the beginning of the desorption and cold accumulation mode, and thus when the first temperature of the evaporation portion of a certain adsorption refrigeration system is less than or equal to the third set temperature threshold, it can be determined that the adsorption refrigeration system has a fault problem.

[0093] In this way, by judging the first temperature of the evaporation portion and the second temperature condition during the operation of the desorption and cold accumulation mode, the adsorption refrigeration system group can be controlled to exit the desorption and cold accumulation mode when the adsorption refrigeration system has a fault, and a fault alarm can be sent to the user to timely remind the user to perform fault maintenance, thereby ensuring the safe and stable operation of the adsorption refrigeration system group of the dual refrigeration type air conditioner.

[0094] In some optional embodiments, the operation state of the refrigerant heat exchange system is controlled according to the evaporation portion temperature set of the adsorption refrigeration system group. In the embodiments of the present disclosure, since the heat source for the desorption of the adsorption portion of the adsorption refrigeration system is the outdoor heat exchanger, the temperature change of the evaporation portion can reflect whether the heat dissipation amount of the outdoor heat exchanger to the adsorption refrigeration system group is too low or too large. In the case that the temperature of the evaporation portion is high and the temperature change is fast, it indicates that the adsorption refrigeration system group obtains more heat dissipation amount from the outdoor heat exchanger; and in the case that the temperature of the evaporation portion is high and the temperature change is slow, it indicates that the adsorption refrigeration system obtains less heat dissipation amount from the outdoor heat exchanger. In this way, by judging the evaporation portion temperature set of the adsorption refrigeration system, the operation state of the refrigerant heat exchange system can be adjusted to change the heat dissipation amount of the outdoor heat exchanger, thereby ensuring the efficient operation of each adsorption refrigeration system in the adsorption refrigeration system group.

[0095] Optionally, the operation state of the refrigerant heat exchange system is controlled according to the evaporating section temperature set of the adsorption refrigeration system group, including: obtaining the minimum value of the first temperature in the evaporating section temperature set; and controlling the heat dissipation amount of the outdoor heat exchanger of the refrigerant heat exchange system according to the temperature difference between the minimum value of the first temperature and a second set temperature threshold.

[0096] In the embodiment, the adsorption refrigeration system corresponding to the minimum value of the first temperature in the evaporating section temperature set has the least heat dissipation amount from the outdoor heat exchanger, and thus has the lowest desorption and cold storage effect. In this way, the heat dissipation amount of the outdoor heat exchanger of the refrigerant heat exchange system is adjusted according to the temperature state of the adsorption refrigeration system with the lowest desorption and cold storage effect, so as to improve the desorption and cold storage state of the adsorption refrigeration system and improve the cold storage effect.

[0097] In the embodiment, the second set temperature threshold is a temperature parameter used to represent the normal operation of the desorption and cold storage mode of the adsorption refrigeration system. Thus, when the minimum value of the first temperature is less than the second set temperature threshold, it indicates that the desorption and cold storage state of the adsorption refrigeration system is poor, and thus the heat dissipation amount of the outdoor heat exchanger needs to be adjusted. When the minimum value of the first temperature is equal to or greater than the second set temperature threshold, it indicates that the desorption and cold storage state of the adsorption refrigeration system is good, and thus the heat dissipation amount of the outdoor heat exchanger does not need to be adjusted.

[0098] Here, the temperature difference and the heat dissipation amount of the outdoor heat exchanger have a positive correlation, that is, the greater the temperature difference between the minimum value of the first temperature and the second set temperature threshold, the poorer the desorption and cold storage effect of the adsorption refrigeration system, and the more the heat dissipation amount needed to improve the cold storage state, and thus the heat dissipation amount of the outdoor heat exchanger needs to be increased.

[0099] Optionally, the control of increasing the heat dissipation amount of the outdoor heat exchanger includes: increasing the operation frequency of the compressor of the refrigerant heat exchange system, or reducing the flow opening degree of the throttling device of the refrigerant circulation system.

[0100] In the embodiment, by increasing the operating frequency of the compressor of the refrigerant heat exchange system, the amount of high-temperature refrigerant discharged by the compressor can be increased, and the temperature and pressure of the discharged refrigerant can also be effectively increased. In the refrigerant cooling mode, the high-temperature and high-pressure refrigerant discharged by the compressor first flows to the outdoor heat exchanger for heat dissipation. Therefore, by increasing the operating frequency of the compressor, the temperature of the outdoor heat exchanger during the heat exchange process can be increased, thereby reducing the temperature difference between the first temperature threshold and the second temperature threshold of the evaporation part, further accelerating the flow rate of heat from the outdoor heat exchanger to the adsorption part, and promoting the desorption rate of the adsorption medium. In addition, considering that the adsorption medium still has some residual heat after condensation, the liquid adsorption medium flowing into the evaporation part of the indoor side of the adsorption refrigeration system may have an adverse effect on the indoor environment. Therefore, by increasing the operating frequency of the compressor, the cooling rate of the indoor heat exchanger can also be increased to reduce the adverse effect of the adsorption refrigeration system on the indoor environment during the desorption and cold storage process.

[0101] In the embodiment, by reducing the flow opening of the throttling device of the refrigerant circulation system, the flow rate of the refrigerant delivered from the outdoor heat exchanger to the indoor heat exchanger can be reduced, so that the high-temperature and high-pressure refrigerant can stay in the outdoor heat exchanger for a longer time to make the refrigerant more fully dissipate heat to the outside, and also to increase the heat dissipation amount of the outdoor heat exchanger. At the same time, reducing the flow opening of the throttling device can also improve the throttling effect of the refrigerant flowing to the indoor heat exchanger, so that the temperature and pressure of the refrigerant can be lower, and also to reduce the adverse effect of the adsorption refrigeration system on the indoor environment during the desorption and cold storage process.

[0102] In some optional embodiments, the steps of the control method of the dual refrigeration air conditioner of the present disclosure further include: recording the duration of the desorption and cold storage mode of the adsorption refrigeration system group; and if the duration of the desorption and cold storage mode meets a preset duration condition, controlling the adsorption refrigeration system group to exit the desorption and cold storage mode.

[0103] Optionally, the duration condition includes that the duration of the desorption and cold storage mode is greater than or equal to a duration threshold.

[0104] Here, the desorption and cold storage mode of each adsorption refrigeration system of the adsorption refrigeration system group is a one-way flow process of the adsorption medium, and the adsorption medium flows from the adsorption part to the evaporation part in the desorption and cold storage mode. Since the initial adsorption and storage of the adsorption medium in the adsorption part is a fixed amount, the maximum amount of the adsorption medium that can be delivered to the evaporation part in the desorption and cold storage mode is also fixed. When the delivery of the adsorption medium is completed, it can be determined that the desorption and cold storage is completed, and therefore the adsorption refrigeration system group can be controlled to exit the desorption and cold storage mode. In the embodiment, whether the desorption and cold storage mode can be exited is determined by the duration of the desorption mode.

[0105] Here, the set time length threshold is a time length parameter for representing that the desorption cold storage process has been completed. Therefore, when the running time length of the desorption cold storage mode is greater than or equal to the set time length threshold, it can be considered that the desorption cold storage process has been completed; and when the running time length of the desorption cold storage mode is less than the set time length threshold, it can be considered that the desorption cold storage process has not been completed, and the transport of the adsorption medium is still in progress.

[0106] In this way, according to the judgment result of whether the running time length of the desorption cold storage mode is greater than or equal to the set time length threshold, the exit of the desorption cold storage mode is controlled, which can ensure that there is enough adsorption medium for adsorption refrigeration when the adsorption refrigeration mode is enabled subsequently, thereby ensuring the refrigeration time length and refrigeration effect of the adsorption refrigeration.

[0107] Optionally, if it is determined that the running time length of the desorption cold storage mode is less than the set time length threshold, the desorption cold storage mode is kept running until the running time length of the desorption cold storage mode is greater than or equal to the set time length threshold.

[0108] Optionally, in the embodiment, the set time length threshold has a value range of 8 min-12 min.

[0109] Optionally, the dual-refrigeration air conditioner further comprises a timing module, which can be used to record the running time length of the desorption cold storage mode of the adsorption refrigeration system group of the dual-refrigeration air conditioner. Therefore, in the embodiment, the running time length of the desorption cold storage mode can be obtained through the timing module.

[0110] In some optional embodiments, the steps of the control method of the dual-refrigeration air conditioner of the present disclosure further comprise: controlling the outdoor fan to run at a first rotating speed when the dual-refrigeration air conditioner runs in the first mode; and controlling the outdoor fan to run at a second rotating speed when the adsorption refrigeration system group exits the desorption cold storage mode.

[0111] In the embodiment, the first rotating speed is less than the second rotating speed. Here, in the first mode, the desorption cold storage mode of the adsorption refrigeration system group is mainly to use the heat of the outdoor heat exchanger of the refrigerant heat exchange system to desorb the adsorption medium of the adsorption part. Therefore, controlling the outdoor fan to run at the first rotating speed with a smaller value can reduce the heat dissipation of the outdoor fan to the outdoor environment, so that the heat can be concentrated in the surrounding environment of the adsorption part, thereby improving the desorption rate. When the adsorption refrigeration system group exits the desorption cold storage mode, the outdoor fan is controlled to run at the second rotating speed with a larger value, so as to improve the heat dissipation effect of the outdoor heat exchanger, and further improve the refrigeration effect of the refrigerant heat exchange system. Here, the dual-refrigeration air conditioner flexibly adjusts the rotating speed of the outdoor fan according to the start-stop state of the desorption cold storage mode of the adsorption refrigeration system group, that is, the desorption effect can be improved, and the refrigeration effect of the refrigerant heat exchange system can also be improved.

[0112] Exemplarily, the first rotating speed of the outdoor fan is 400 r / min when the dual-refrigeration air conditioner operates in the first mode, and the second rotating speed of the outdoor fan is 600 r / min when the adsorption refrigeration system group exits the desorption cold storage mode.

[0113] In some optional embodiments, after controlling the adsorption refrigeration system group to exit the desorption cold storage mode, if a triggering condition of the adsorption refrigeration mode is met, one or more adsorption refrigeration systems in the adsorption refrigeration system group are controlled to enter the adsorption refrigeration mode.

[0114] In this way, the "cold energy" accumulated by the adsorption refrigeration system in the desorption cold storage stage can be used to cool the indoor environment, and the desorption cold storage stage is a heat transfer from the indoor side to the outdoor side by using the adsorbent to adsorb the adsorbent medium, so that no energy is consumed. By combining the adsorption refrigeration and refrigerant refrigeration, the power consumption required to maintain the indoor environment temperature in the range that the user feels comfortable can be effectively reduced, and the use cost of the dual-refrigeration air conditioner can be reduced.

[0115] Figure 3 is a structural schematic diagram of a control device for a dual-refrigeration air conditioner provided by the embodiments of the present disclosure.

[0116] The embodiments of the present disclosure provide a control device for a dual-refrigeration air conditioner, which has a structure as shown in Figure 3 includes:

[0117] The processor 300 and the memory 301 can also include a communication interface 302 and a bus 303. The processor 300, the communication interface 302, and the memory 301 can communicate with each other through the bus 303. The communication interface 302 can be used for information transmission. The processor 300 can call the logic instructions in the memory 301 to execute the control method for the dual-refrigeration air conditioner of the above-mentioned embodiments.

[0118] In addition, the logic instructions in the memory 301 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0119] The memory 301 as a computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments of the present disclosure. The processor 300 executes the function application and data processing by running the program instructions / modules stored in the memory 301, that is, implements the control method for the dual-refrigeration air conditioner in the above-mentioned method embodiments.

[0120] The memory 301 can include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required by at least one function, and the like; and the data storage area can store data created according to use of the terminal device, and the like. In addition, the memory 301 can include a high-speed random access memory, and can further include a nonvolatile memory.

[0121] Here, the dual refrigeration air conditioner provided by the embodiment of the present disclosure further includes the control device for the dual refrigeration air conditioner shown in the foregoing embodiment.

[0122] The embodiment of the present disclosure further provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are arranged to execute the control method for the dual refrigeration air conditioner.

[0123] The embodiment of the present disclosure further provides a computer program product, which includes a computer program stored on a computer readable storage medium, and the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the control method for the dual refrigeration air conditioner.

[0124] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0125] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, and the computer software product is stored in a storage medium, and includes one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiment of the present disclosure. The foregoing storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes, and can also be a transitory storage medium.

[0126] The above description and drawings are illustrative of embodiments of the present disclosure and are not intended to be limiting. Other embodiments can include structural, logical, electrical, process, and other changes. Embodiments are illustrative of the many possible variations that are readily undertaken. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Portions and features of some embodiments can be included in, or substituted for, those of other embodiments. The scope of the present disclosure encompasses the entire scope of the following claims, and all available equivalents of the claims. When used in this application, the terms "first," "second," and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without changing the meaning of the description, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first element and the second element are both elements, but they are not necessarily the same element. Also, the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. In addition, the term "comprises / comprising" and / or "comprises / comprising" when used in this application is taken to mean, for either the singular or plural forms, the stated features, integers, steps, operations, elements, and / or components but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. Without more limitations, an element preceded by "comprises a" does not, without more limitations, preclude the existence of additional identical elements in the process, method, article, or apparatus including the recited element. In this document, each embodiment is highlighted by the differences from other embodiments. Identical or similar parts between embodiments can be mutually referred to. For the method, product, etc. disclosed by the embodiments, if it corresponds to the method part disclosed by the embodiments, the relevant part can be referred to the description of the method part.

[0127] Those skilled in the art can understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods for each specific application to realize the described functions, but such implementation should not be considered beyond the scope of the embodiments of the present disclosure. The skilled person can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0128] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units can only be a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms. The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to implement the embodiments. In addition, each functional unit in the embodiments of the present disclosure can be integrated in one processing unit, or each unit can be a physically independent unit, or two or more units can be integrated in one unit.

[0129] The computer program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other processing device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other processing device to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks.

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 group, the adsorption refrigeration system group comprises one or more adsorption refrigeration systems, each of which has an evaporation part arranged on the indoor side and an adsorption part arranged at the outdoor heat exchanger of the refrigerant heat exchange system; The control method comprises: When the double refrigeration air conditioner operates in a first mode, a temperature set of the evaporation part of the adsorption refrigeration system group is obtained, wherein the first mode comprises that the refrigerant heat exchange system is in a refrigerant refrigeration mode and the adsorption refrigeration system group is in a desorption and cold storage mode; and the temperature set of the evaporation part comprises a first temperature of the evaporation part of each adsorption refrigeration system; The adsorption medium delivery flow of a first adsorption refrigeration system is controlled to be reduced or blocked, wherein the first adsorption refrigeration system is an adsorption refrigeration system in the adsorption refrigeration system group that meets a first temperature condition, and the first temperature condition is that the first temperature of the evaporation part is greater than or equal to a first set temperature threshold; The adsorption medium delivery flow of a second adsorption refrigeration system is controlled to be increased, wherein the second adsorption refrigeration system is an adsorption refrigeration system in the adsorption refrigeration system group that does not meet the first temperature condition.

2. The control method according to claim 1, characterized by, According to the temperature set of the evaporation part of the adsorption refrigeration system group, the operating state of the desorption and cold storage mode of one or more adsorption refrigeration systems in the adsorption refrigeration system group is controlled, comprising: When one of the adsorption refrigeration systems in the adsorption refrigeration system group meets a second temperature condition, the adsorption refrigeration system group is controlled to exit the desorption and cold storage mode.

3. The control method according to claim 1, characterized by, The operating state of the refrigerant heat exchange system is controlled according to the temperature set of the evaporation part of the adsorption refrigeration system group.

4. The control method according to claim 3, characterized by, According to the temperature set of the evaporation part of the adsorption refrigeration system group, the operating state of the refrigerant heat exchange system is controlled, comprising: The minimum value of the first temperature in the temperature set of the evaporation part is obtained; According to the temperature difference between the minimum value of the first temperature and a second set temperature threshold, the heat dissipation amount of the outdoor heat exchanger of the refrigerant heat exchange system is controlled to be adjusted.

5. The control method according to claim 4, characterized by The temperature difference and the heat dissipation amount of the outdoor heat exchanger have a positive correlation.

6. The control method according to claim 1, characterized by Further comprising: The duration of the operation of the adsorption refrigeration system group in the desorption and cold storage mode is recorded; If the duration of the operation of the adsorption refrigeration system group in the desorption and cold storage mode meets a preset duration condition, the adsorption refrigeration system group is controlled to exit the desorption and cold storage mode.

7. The control method according to claim 6, characterized by The duration condition comprises that the duration of the operation of the adsorption refrigeration system group in the desorption and cold storage mode is greater than or equal to a duration threshold.

8. A control device for a dual refrigeration air conditioner, characterized by comprising: The double refrigeration air conditioner comprises a refrigerant heat exchange system and an adsorption refrigeration system group, the adsorption refrigeration system group comprises one or more adsorption refrigeration systems, each of which has an evaporation part arranged on the indoor side and an adsorption part arranged at the outdoor heat exchanger of the refrigerant heat exchange system; The control device comprises a processor and a memory storing program instructions, and the processor is configured to execute the control method applied to the double refrigeration air conditioner as claimed in any one of claims 1 to 7 when executing the program instructions.

9. A dual refrigeration air conditioner characterized by, Comprising: A refrigerant heat exchange system mainly comprising an indoor heat exchanger, an outdoor heat exchanger, a compressor and a throttling device; An adsorption refrigeration system group composed of one or more adsorption refrigeration systems, each of which comprises: An evaporation part is arranged at the indoor heat exchanger of the refrigerant heat exchange system; An adsorption part is arranged at the outdoor heat exchanger of the refrigerant heat exchange system, and an adsorption medium conveying flow path is configured between the adsorption part and the evaporation part; The control device for the dual refrigeration air conditioner according to claim 8.

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