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, the outdoor coil temperature of an outdoor heat exchanger is acquired; the first mode comprises that a refrigerant heat exchange system is in a refrigerant refrigeration mode and an adsorption refrigeration system is in a desorption cold storage mode; and the flow of adsorption medium flowing from a first adsorption unit to an evaporation unit is adjusted according to the outdoor coil temperature of the outdoor heat exchanger. The control method provided by the embodiment of the application can adjust the flow state of the desorption cold storage mode according to the outdoor coil temperature, so that the operation state of the adsorption refrigeration system is adapted to the current working condition, the working efficiency of the desorption cold storage mode is ensured, and the air conditioning system refrigeration performance is effectively improved. 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 uses the principle that the refrigerant absorbs or releases heat in the gas-liquid phase change process, thereby discharging indoor heat to the outdoor environment;

[0004] (2) adsorption refrigeration, which uses the principle that the refrigerant absorbs and desorbs respectively in the process of being absorbed and desorbed by the adsorbent, to realize the transfer of indoor heat;

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

[0006] (4) thermoelectric refrigeration, which uses the principle of the inverse reaction of the "Seebeck" effect, namely 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 use 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 brief summary is given. The summary is not an overall description of the application, nor is it intended to identify key / important elements or delineate the scope of the embodiments. It is only a prelude to the detailed description below.

[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, a control method for a dual refrigeration air conditioner includes:

[0012] When the dual refrigeration air conditioner operates in a first mode, an outdoor coil temperature of an outdoor heat exchanger is obtained; wherein the first mode includes that a refrigerant heat exchange system is in a refrigerant refrigeration mode and an adsorption refrigeration system is in a desorption cold accumulation mode.

[0013] According to the outdoor coil temperature of the outdoor heat exchanger, an adsorption medium flow rate from the first adsorption part to the evaporation part is adjusted.

[0014] In some embodiments, a control device for a dual refrigeration air conditioner includes:

[0015] A processor and a 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, a dual refrigeration air conditioner includes:

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

[0018] One or more adsorption refrigeration systems, each adsorption refrigeration system including:

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

[0020] A first adsorption part arranged at the outdoor heat exchanger of the refrigerant heat exchange system, a first adsorption medium transport flow path being configured to be openable and closable between the first adsorption part and the evaporation part;

[0021] A second adsorption part arranged at the compressor of the refrigerant heat exchange system, a second adsorption medium transport flow path being configured to be openable and closable between the second adsorption part and the evaporation part;

[0022] The control device for the dual refrigeration air conditioner as in some embodiments above.

[0023] The control method, the control device and the dual refrigeration air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0024] The control method for the double refrigeration type air conditioner provided by the embodiments of the present disclosure can adjust the flow state of the desorption and cold storage mode according to the outdoor coil, wherein the heat source of the desorption and cold storage mode is the heat discharged by the refrigerant heat exchange system, and thus the desorption and cold storage process of the adsorption refrigeration can be realized without configuring an additional heat source, and the flow adjustment of the desorption and cold storage mode according to the outdoor coil temperature can make the operation state of the adsorption refrigeration system adapt to the current working condition, so as to ensure the working efficiency of the desorption and cold storage mode; the embodiments of the present disclosure are not simply superimposing two refrigeration systems in the same air conditioner, but skillfully realizing the combination of two sets of refrigeration structures and the refrigeration and desorption and cold storage processes by fully considering the refrigeration principles of the two systems, which not only simplifies the product structure of the combined air conditioner, but also effectively improves the air conditioning system refrigeration performance.

[0025] 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

[0026] 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 designate similar items in the figures, and wherein:

[0027] Figure 1 is a structural schematic diagram of a double refrigeration type air conditioner provided by the embodiments of the present disclosure;

[0028] Figure 2 is a flow schematic diagram of a control method for a double refrigeration type air conditioner provided by the embodiments of the present disclosure;

[0029] Figure 3 is a structural schematic diagram of a control device for a double refrigeration type air conditioner provided by the embodiments of the present disclosure. DETAILED DESCRIPTION

[0030] 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.

[0031] Figure 1 is a structural schematic diagram of a double refrigeration type air conditioner provided by the embodiments of the present disclosure;

[0032] 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 cold refrigerant heat exchange system, which can be used for functions such as refrigeration and dehumidification of indoor environment, or a cold and warm refrigerant heat exchange system, which can be used for functions such as refrigeration, dehumidification and heating of indoor environment. The adsorption refrigeration system can be used for the function of refrigerating indoor environment when it operates in the adsorption refrigeration mode.

[0033] 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 the like; 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 according to different operation modes to realize different operation mode functions.

[0034] 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.

[0035] In the embodiment, the operation modes of the refrigerant heat exchange system of the dual refrigeration air conditioner include refrigeration mode, dehumidification mode and heating mode, etc., wherein the refrigeration mode is generally applied in summer high temperature working condition to reduce the indoor environment temperature; the dehumidification mode is also generally used in summer high temperature and high humidity working condition to reduce the indoor environment humidity; and the heating mode is generally applied in winter low temperature working condition to improve the indoor environment temperature.

[0036] The refrigerant flow direction set when the refrigerant heat exchange system operates in the refrigeration mode is that the high-temperature refrigerant discharged by the compressor 13 first exchanges heat with the outdoor environment through the outdoor heat exchanger 12, then exchanges heat with the indoor environment through the indoor heat exchanger 11, and finally 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.

[0037] The refrigerant flow direction defined when the refrigerant heat exchange system operates in the dehumidification mode is the same as that in the refrigeration mode, the difference is that, when the air conditioner operates in the 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, and 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.

[0038] The refrigerant flow direction set when operating in the heating mode refers to 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, and through the circulation of the refrigerant in the refrigerant circulation loop, the outdoor heat can be continuously released to the indoor environment, thereby achieving the purpose of improving the indoor environment temperature.

[0039] 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 will not be described here.

[0040] 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.

[0041] Taking one of the adsorption refrigeration systems as an example, the adsorption refrigeration system includes a first adsorption part 21, a second adsorption part 22, and an evaporation part 23, wherein the first adsorption part 21 is arranged at the outdoor heat exchanger 12 of the refrigerant heat exchange system, and is filled with an adsorbent therein, which is used to release the adsorbent after absorbing the heat of the outdoor heat exchanger 12 in the desorption and cold storage stage, and to adsorb the adsorbent and release heat in the adsorption refrigeration stage; the second adsorption part 22 is arranged at the compressor 13 of the refrigerant heat exchange system, and is filled with an adsorbent therein, which is used to release the adsorbent after absorbing the heat of the compressor 13 in the desorption and cold storage stage, and to adsorb the adsorbent and release heat in the adsorption refrigeration stage; the evaporation part 23 is arranged at the indoor side, which is used to store the liquid adsorbent from the first adsorption part 21 and / or the second adsorption part 22 in the desorption and cold storage stage, and to absorb heat from the indoor environment and deliver the vaporized adsorbent to the first adsorption part 21 and / or the second adsorption part 22 in the adsorption refrigeration stage.

[0042] In some embodiments, the first 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 first 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 first adsorption part 21 can absorb a large amount of heat for desorption in the desorption and storage stage; at the same time, the first adsorption part 21 is also arranged at the air inlet side of the outdoor fan, so that the heat released by the first adsorption part 21 can be dissipated to the outdoor environment under the driving action of the outdoor fan in the adsorption stage.

[0043] 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 first adsorption part 21 and the outdoor heat exchanger 12, the overall shape of the first 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 first adsorption part 21 and the outdoor heat exchanger 12 and improve the waste heat utilization efficiency of the outdoor heat exchanger 12.

[0044] Here, for the adsorption refrigeration system group, in order to enable the first 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 first adsorption part 21 of an individual adsorption refrigeration system deviates from the outdoor heat exchanger 12 and thus the heat absorption is insufficient, the first adsorption parts 21 of the plurality of adsorption refrigeration systems are arranged side by side, and optionally, the first 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 first 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.

[0045] Optionally, the adsorption medium conveying flow path is also constructed between the adjacent first adsorption parts 21; in this way, the gaseous adsorption medium can flow between the plurality of first adsorption parts 21 in the desorption and storage stage and the adsorption stage, so as to improve the desorption and storage effect and the adsorption effect of the adsorption refrigeration system group as a whole.

[0046] In some embodiments, the second adsorption part 22 is in a ring-encircling structure surrounding at least part of the body of the compressor 13, so as to increase the heat exchange area between the compressor 13 and the second adsorption part 22 and improve the heat exchange amount.

[0047] Optionally, the second adsorption part 22 is a hollow cylindrical structure, and the hollow space can be used to accommodate the compressor 13 and its related components, so that when the compressor 13 and its related components dissipate heat outward, most of the heat can be conducted to the second adsorption part 22 to improve the desorption efficiency of the second adsorption part 22; wherein the second adsorption part 22 is internally formed with a flow path for flowing the adsorption medium.

[0048] Optionally, the second adsorption part 22 is arranged in close contact with the compressor 13. The close arrangement can enable the heat to be directly conducted from the compressor 13 to the second adsorption part 22 through solid heat conduction, effectively reducing heat loss and improving the utilization efficiency of the waste heat of the compressor 13.

[0049] Optionally, for the plurality of adsorption refrigeration system groups, in order to enable the second adsorption parts of the plurality of adsorption refrigeration systems to uniformly absorb heat from the compressor 13, the second adsorption parts 22 of the plurality of adsorption refrigeration systems of the adsorption refrigeration system group are arranged in sequence side by side along the longitudinal direction of the compressor 13.

[0050] Optionally, the evaporation part 23 is a plate-fin structure, which can effectively improve the heat exchange effect between the adsorption medium in the evaporation part 23 and the indoor environment during the desorption and storage stage, and enhance the heat absorption refrigeration capacity; at the same time, the evaporation part 23 is internally formed with a flow path for flowing the adsorption medium, which is in communication with the adsorption medium conveying flow path.

[0051] In some optional embodiments, the indoor heat exchanger 11 is in a structure form that the longitudinal section is a broken line and semi-encircles the indoor fan; therefore, in order to also improve the heat exchange effect between the evaporation part 23 and the indoor environment, in this embodiment, the overall shape of the evaporation part 23 is adapted to the indoor heat exchanger 11 and is also designed in a form of semi-encircling the indoor fan, and is arranged in close contact with the indoor heat exchanger 11, so as to increase the heat exchange area between the evaporation part 23 and the airflow flowing through the indoor unit and improve the heat absorption refrigeration capacity.

[0052] Here, for the plurality of adsorption refrigeration system groups, in order to enable the evaporation parts 23 of the plurality of adsorption refrigeration systems to uniformly absorb heat from the indoor environment, the evaporation parts 23 of the plurality of adsorption refrigeration systems are also arranged in a side-by-side manner; optionally, the evaporation parts 23 of the plurality of adsorption refrigeration systems are arranged side by side along the transverse direction or the longitudinal direction of the indoor heat exchanger 11, and the evaporation part 23 is designed in a form adapted to the part of the corresponding indoor heat exchanger 11.

[0053] Optionally, the adsorption medium conveying flow path is also constructed between adjacent evaporation parts 23; in this way, during the desorption and storage stage and the adsorption and storage stage, the liquid and gaseous adsorption medium can flow between the plurality of evaporation parts 23, thereby improving the desorption and storage effect and the adsorption refrigeration effect of the entire adsorption refrigeration system group.

[0054] In addition, the adsorption refrigeration system further comprises a first intermediate heat dissipation unit 24; the first intermediate heat dissipation unit 24 is arranged on the first adsorption medium conveying flow path, and is used for receiving the gaseous adsorption medium conveyed by the first adsorption unit 21 and dissipating heat to condense the gaseous adsorption medium in the desorption and cold storage stage, so that at least part of the gaseous adsorption medium is liquefied, and the liquefied adsorption medium is continuously conveyed to the evaporation unit 23 for storage.

[0055] Here, the first intermediate heat dissipation unit 24 is arranged on the outdoor side, and is used for dissipating heat to condense the adsorption medium through heat exchange with the outdoor environment; when the refrigerant heat exchange system operates in the refrigerant refrigeration mode, the outdoor heat exchanger 12 discharges heat to the outside, and the temperature of the first adsorption unit 21 is generally higher than the outdoor environment temperature due to the influence of the temperature, so that the gaseous adsorption medium released by the first adsorption unit 21 under the influence of high temperature flows into the first intermediate heat dissipation unit 24, and heat is dissipated to the outdoor environment, so that at least part of the gaseous adsorption medium is condensed into liquid state again.

[0056] Meanwhile, the adsorption refrigeration system further comprises a second intermediate heat dissipation unit 25; the second intermediate heat dissipation unit 25 is arranged on the second adsorption medium conveying flow path, and is used for receiving the gaseous adsorption medium conveyed by the second adsorption unit 22 and dissipating heat to condense the gaseous adsorption medium in the desorption and cold storage stage, so that at least part of the gaseous adsorption medium is liquefied, and the liquefied adsorption medium is continuously conveyed to the evaporation unit 23 for storage.

[0057] Here, the second intermediate heat dissipation unit 25 is also arranged on the outdoor side, and is used for dissipating heat to condense the adsorption medium through heat exchange with the outdoor environment; when the refrigerant heat exchange system operates in the refrigerant refrigeration mode, the compressor 13 discharges heat to the outside, and the temperature of the second adsorption unit 22 is generally higher than the outdoor environment temperature due to the influence of the temperature, so that the gaseous adsorption medium released by the second adsorption unit 22 under the influence of high temperature flows into the second intermediate heat dissipation unit 25, and heat is dissipated to the outdoor environment, so that at least part of the gaseous adsorption medium is condensed into liquid state again.

[0058] Optionally, the first intermediate heat dissipation unit 24 and the second heat dissipation unit are horizontal flow heat dissipaters.

[0059] In some embodiments, the first intermediate heat dissipation unit 24 and the second intermediate heat dissipation unit 25 are arranged at the back plate, side plate or bottom plate position of the outdoor unit of the refrigerant heat exchange system, and are arranged away from the air outlet of the outdoor unit, so that the heat dissipation effect of the intermediate heat dissipation units can be avoided from being affected by the high-temperature air discharged by the outdoor unit.

[0060] Preferably, the first intermediate heat dissipation unit 24 and the second intermediate heat dissipation unit 25 are arranged at the bottom plate position, and in this arrangement, the outdoor unit can shield the sunlight for the two intermediate heat dissipation units, so as to provide a more suitable heat dissipation temperature environment for the two intermediate heat dissipation units.

[0061] Alternatively, since the back plate of the outdoor unit is provided with an air inlet, the first intermediate heat dissipation part 24 and the second intermediate heat dissipation part 25 can also be arranged adjacent to the air inlet, so as to accelerate the flow of ambient air around the intermediate heat dissipation part by the driving action of the outdoor fan, thereby improving the heat dissipation effect.

[0062] In the present embodiment, a first adsorption medium conveying flow path is configured between the first adsorption part 21 and the evaporation part 23, and the adsorption medium can flow between the first adsorption part 21, the first intermediate heat dissipation part 24 and the evaporation part 23 via the first adsorption medium conveying flow path.

[0063] Here, the first adsorption medium conveying flow path includes a first desorption flow path and a first adsorption flow path, wherein the first desorption flow path is a flow path for conveying the adsorption medium in the cold accumulation phase, and the first adsorption flow path is a flow path for conveying the adsorption medium in the refrigeration phase.

[0064] In the first desorption flow path, the first adsorption part 21, the first intermediate heat dissipation part 24 and the evaporation part 23 are connected in series, so that after the adsorption medium in the cold accumulation phase flows out of the first adsorption part 21, it enters the first intermediate heat dissipation part 24 and the evaporation part 23 in turn, and is finally stored in the evaporation part 23 in liquid form.

[0065] Optionally, a one-way valve is arranged on the first desorption flow path, which limits the adsorption medium to be conveyed in the flow direction of "first adsorption part 21→ first intermediate heat dissipation part 24→evaporation part 23"; here, the one-way valve can be arranged on the flow path between the first adsorption part 21 and the first intermediate heat dissipation part 24, or it can also be arranged on the flow path between the first intermediate heat dissipation part 24 and the evaporation part 23.

[0066] In the first adsorption flow path, the evaporation part 23 and the first adsorption part 21 are connected in series, so that after the adsorption medium in the refrigeration phase flows out of the evaporation part 23, it enters the first adsorption part 21 via the first adsorption flow path, and is re-adsorbed by the adsorbent in the first adsorption part 21.

[0067] Optionally, a one-way valve is arranged on the first adsorption flow path, which limits the adsorption medium to be conveyed in the flow direction of "evaporation part 23→ first adsorption part 21".

[0068] Optionally, the first desorption flow path is arranged as the main flow path, and the first adsorption flow path is arranged in parallel with the first intermediate heat dissipation part 24, so that the non-parallel flow path section of the first desorption flow path close to the first adsorption part 21 can also be used for conveying the adsorption medium in the refrigeration phase.

[0069] Similarly, a second adsorption medium conveying flow path is configured between the second adsorption portion 22 and the evaporation portion 23, and the adsorption medium can flow between the second adsorption portion 22, the second intermediate heat dissipation portion 25 and the evaporation portion 23 through the second adsorption medium conveying flow path.

[0070] Here, the second adsorption medium conveying flow path includes a second desorption flow path and a second adsorption flow path, wherein the second desorption flow path is a flow path for conveying the adsorption medium in the desorption and storage phase, and the second adsorption flow path is a flow path for conveying the adsorption medium in the adsorption and refrigeration phase.

[0071] Here, the second adsorption medium conveying flow path can be configured in the same way as the first adsorption medium conveying flow path in the previous embodiment, and will not be described here.

[0072] In this embodiment, the adsorption refrigeration system further includes two control valves, wherein the first control valve 26 is arranged on the first adsorption medium conveying flow path and is used to control the on-off state and flow rate of the first adsorption medium conveying flow path, and the second control valve 27 is arranged on the second adsorption medium conveying flow path and is used to control the on-off state and flow rate of the second adsorption medium conveying flow path. Here, each control valve is arranged on the non-parallel flow path section of the desorption flow path close to the corresponding adsorption portion in the above embodiment, so that the flow on-off control of the desorption and storage phase and the adsorption and refrigeration phase of the adsorption portion can be realized only by the one control valve.

[0073] Alternatively, a control valve can also be arranged on the desorption flow path and the adsorption flow path of each adsorption medium conveying flow path respectively, so as to control the on-off state and flow rate of the corresponding flow path through the respective control valve.

[0074] The working mode of the adsorption refrigeration system and the refrigerant heat exchange system in the embodiment of the present disclosure will be described below:

[0075] In this embodiment, the operation modes of the adsorption refrigeration system mainly include a desorption and storage mode and an adsorption and refrigeration mode, wherein the desorption and storage mode corresponds to the desorption and storage phase in the previous embodiment, and is mainly used for accumulating "cold energy"; and the adsorption and refrigeration mode corresponds to the adsorption and refrigeration phase in the previous embodiment, and is mainly used for releasing the "cold energy" accumulated in the desorption and storage phase, so as to realize the refrigeration and cooling of the indoor side.

[0076] 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 evaporation section 23 as the stored "cold energy".

[0077] The adsorption refrigeration system operates in adsorption refrigeration mode under the premise that the refrigerant heat exchange system is not in refrigerant refrigeration mode or refrigerant dehumidification mode. Here, when the refrigerant heat exchange system is not in refrigerant refrigeration 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 evaporation section 23 begins to absorb heat and evaporate into a gaseous adsorption medium, which then flows back to the first adsorption section 21 and the second adsorption section 22 through their respective adsorption flow paths. During this process, the adsorption medium absorbs heat from the indoor environment and releases the heat to the outdoor environment where the adsorption section is located after the adsorption medium is re-adsorbed by the adsorbent. Therefore, by the reverse flow of the adsorption medium compared to the desorption and cold storage stage, adsorption refrigeration and cooling of the indoor environment can be achieved.

[0078] 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.

[0079] Figure 2 This is a schematic flowchart of a control method for a dual-cooling air conditioner provided in an embodiment of this disclosure.

[0080] 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:

[0081] S201. When the dual-cooling air conditioner is in the first operating mode, obtain the outdoor coil temperature of the outdoor heat exchanger.

[0082] In the embodiment 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.

[0083] In the summer high temperature working condition, when the dual refrigeration air conditioner is started, the default start mode of the refrigerant heat exchange system is to run 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 along with the refrigerant, and the heat is discharged to the outdoor environment through the heat exchange process between the outdoor heat exchanger and the outdoor environment. At this time, the temperature of the outdoor heat exchanger is higher than that of the outdoor environment.

[0084] At the same time that the refrigerant heat exchange system runs in the refrigerant refrigeration mode, the adsorption refrigeration system enters the desorption and cold storage mode. The outdoor heat exchanger and the compressor discharge heat to the surrounding environment, so that the temperature of the surrounding environment also rises. Therefore, the adsorption medium in the first adsorption part of the adsorption refrigeration system close to the outdoor heat exchanger and the second adsorption part of the adsorption refrigeration system close to the compressor absorbs heat and desorbs from the adsorbent after absorbing heat, realizing "desorption". The desorbed adsorption medium flows to the corresponding intermediate heat sink along the adsorption medium conveying flow path. Here, the temperature of the intermediate heat sink is lower than that of the outdoor heat exchanger and the compressor. Therefore, the adsorption medium condenses and continues to flow into the evaporation part on the indoor side along the adsorption medium conveying flow path, realizing "cold storage".

[0085] In this embodiment, when the refrigerant heat exchange system is in the refrigerant refrigeration mode, the compressor is started, and the refrigerant is conveyed in the refrigerant heat exchange system according to the refrigeration flow direction. When the adsorption refrigeration system is in the desorption and cold storage mode, the control valve arranged on the adsorption medium conveying flow path is controlled to be opened to make the flow path from the adsorption part to the evaporation part of the adsorption medium 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, so as to reserve the cold energy for the adsorption refrigeration mode in the evaporation part.

[0086] In some optional embodiments, the outdoor unit of the dual refrigeration air conditioner is provided with a temperature sensor, which can be used to detect the real-time temperature of the coil of the outdoor unit. Therefore, the outdoor coil temperature can be detected by the temperature sensor in step S201.

[0087] S202, adjusting the flow of the adsorption medium from the first adsorption part to the evaporation part according to the outdoor coil temperature of the outdoor heat exchanger.

[0088] Here, the first adsorption part is arranged close to the outdoor heat exchanger, and thus the amount of heat conducted from the outdoor heat exchanger to the first adsorption part can directly affect the desorption rate of the adsorption medium in the first adsorption part, and thus not only can affect the amount of adsorption medium delivered from the first adsorption part to the evaporation part, but also can affect the speed of delivering the desorbed adsorption medium from the second adsorption part to the first adsorption part. In the embodiment, the outdoor coil temperature is used as a measurement parameter for representing the amount of heat that can be conducted from the outdoor heat exchanger to the first adsorption part, and the flow rate of the adsorption medium from the first adsorption part and the second adsorption part to the evaporation part is adjusted according to the outdoor coil temperature, so that the adsorption refrigeration system can be operated at a better desorption and cold storage efficiency.

[0089] Optionally, the first adsorption part and the evaporation part are connected through a first adsorption medium delivery flow path, and a control valve for controlling the on-off state of the first adsorption medium delivery flow path is arranged on the first adsorption medium delivery flow path, so that the flow rate of the adsorption medium from the first adsorption part to the evaporation part can be realized by controlling the flow opening of the control valve.

[0090] The control method for the dual refrigeration air conditioner provided by the embodiment of the present disclosure can adjust the flow state of the desorption and cold storage mode according to the outdoor coil, wherein the heat source of the desorption and cold storage mode is the heat discharged by the refrigerant heat exchange system, and thus the desorption and cold storage process of the adsorption refrigeration can be realized without configuring an additional heat source. The flow adjustment of the desorption and cold storage mode according to the outdoor coil temperature can make the operation state of the adsorption refrigeration system adapt to the current working condition, so as to ensure the working efficiency of the desorption and cold storage mode. The embodiment of the present disclosure is not simply to superimpose two refrigeration systems in the same air conditioner, but to consider the refrigeration principles of the two systems and to skillfully realize the combination of two sets of refrigeration structures and the refrigeration and desorption and cold storage processes. This not only simplifies the product structure of the combined air conditioner, but also effectively improves the air conditioning refrigeration performance.

[0091] In some optional embodiments, the control method for the dual refrigeration air conditioner of the present disclosure further includes: determining that the outdoor coil temperature of the outdoor heat exchanger and the shell temperature of the compressor are greater than the outdoor environment temperature on the outdoor side before the dual refrigeration air conditioner operates in the first mode.

[0092] In the embodiment, the first adsorption part of the adsorption refrigeration system is arranged close to the outdoor heat exchanger, so that the temperature of the outdoor coil of the outdoor heat exchanger can not only affect the desorption rate of the adsorption medium in the first adsorption part, but also directly affect the temperature of the gaseous adsorption medium. Similarly, since the second adsorption part is arranged close to the compressor, the temperature of the shell of the compressor can also directly affect the temperature of the gaseous adsorption medium in the second adsorption part. Here, the first intermediate heat dissipation part corresponding to the first adsorption part and the second intermediate heat dissipation part corresponding to the second adsorption part are both arranged on the outdoor side, and heat exchange with the outdoor side is used to realize the heat dissipation and condensation operation of the gaseous adsorption medium passing through the two intermediate heat dissipation parts. Therefore, in order to achieve the purpose of condensation, the two intermediate heat dissipation parts need to provide a lower condensation temperature environment than the first adsorption part and the second adsorption part, and the temperature of the outdoor environment is an external factor that can directly affect the temperature of the two intermediate heat dissipation parts.

[0093] Here, in the case that the temperature of the outdoor coil of the outdoor heat exchanger is greater than the outdoor environment temperature on the outdoor side, the temperature of the first adsorption part affected by the temperature of the outdoor heat exchanger is generally greater than the temperature of the first intermediate heat dissipation part affected by the outdoor environment temperature on the outdoor side, so that the first intermediate heat dissipation part can play a role in heat dissipation and condensation. Similarly, in the case that the temperature of the shell of the compressor is greater than the outdoor environment temperature on the outdoor side, the temperature of the second adsorption part affected by the temperature of the compressor is generally greater than the temperature of the second intermediate heat dissipation part affected by the outdoor environment temperature on the outdoor side, so that the second intermediate heat dissipation part can play a role in heat dissipation and condensation.

[0094] In the embodiment, in the first mode of the dual refrigeration type air conditioner, the adsorption refrigeration system simultaneously uses the first adsorption part and the second adsorption part to desorb and store cold, so that the temperature requirements that the temperature of the outdoor coil of the outdoor heat exchanger and the temperature of the shell of the compressor are greater than the outdoor environment temperature on the outdoor side need to be met.

[0095] Optionally, when only the first adsorption part is used to desorb and store cold, only the temperature requirement that the temperature of the outdoor coil of the outdoor heat exchanger is greater than the outdoor environment temperature on the outdoor side needs to be met. Further optionally, when only the second adsorption part is used to desorb and store cold, only the temperature requirement that the temperature of the shell of the compressor is greater than the outdoor environment temperature on the outdoor side needs to be met.

[0096] In some optional embodiments, the outdoor unit of the dual-refrigeration air conditioner is further provided with two temperature sensors, one of which is arranged on the body of the compressor and can be used to detect the real-time temperature of the shell of the compressor; the other is arranged on the outer wall of the outdoor unit and adjacent to the first intermediate heat dissipation part and the second intermediate heat dissipation part, and can be used to detect the real-time temperature of the outdoor environment in which the two intermediate heat dissipation parts are located. Therefore, in this embodiment, the outdoor environment temperature and the shell temperature of the compressor used for comparison of temperature can be detected by the two temperature sensors.

[0097] In some optional embodiments, the step S202 of adjusting the flow of the adsorbent from the first adsorption part to the evaporation part according to the outdoor coil temperature of the outdoor heat exchanger comprises: calculating the temperature difference between the outdoor coil temperature and the desorption critical temperature; and adjusting the flow of the adsorbent from the first adsorption part to the evaporation part according to the temperature difference.

[0098] Here, the desorption critical temperature is the temperature required for the adsorbent to be desorbed from the adsorbent. When the temperature of the environment in which the adsorbent is located is greater than or equal to the desorption critical temperature, the adsorbent can start to be desorbed from the adsorbent, realizing "desorption"; and when the temperature of the environment in which the adsorbent is located is less than the desorption critical temperature, the adsorbent cannot be desorbed or only a small amount can be "desorbed".

[0099] In this embodiment, the temperatures required for different adsorbents and their matched adsorbents to realize desorption are different, so the desorption critical temperature is determined in advance according to the types of the adsorbents and their adsorbents.

[0100] In this embodiment, since the temperature of the environment in which the adsorbent in the first adsorption part is located is directly affected by the outdoor coil temperature, the size of the temperature difference between the outdoor coil temperature and the desorption critical temperature can directly reflect the desorption rate of the adsorbent in the first adsorption part; in the embodiment of the present disclosure, the flow of the adsorbent from the first adsorption part to the evaporation part is adjusted according to the outdoor coil temperature, so that the actual flow of the adsorbent in the adsorbent conveying flow path can adapt to the current desorption and cold storage capacity.

[0101] Optionally, adjusting the flow of the adsorbent from the first adsorption part to the evaporation part according to the temperature difference comprises: according to the temperature difference, searching for the corresponding flow of the adsorbent from the preset first correlation relationship.

[0102] The first correlation relationship includes one or more corresponding relationships between the temperature difference and the flow of the adsorbent, for example, when the temperature difference is △T1, the corresponding flow of the adsorbent is q1; when the temperature difference is △T2, the corresponding flow of the adsorbent is q2, and so on.

[0103] The adsorption medium flow rate and the temperature difference in the first correlation relationship are in a negative correlation relationship. Here, in the process of running the desorption cold accumulation mode of the adsorption refrigeration system, the outdoor environment temperature generally does not have a large fluctuation change, so the heat dissipation amount of the intermediate heat dissipation part affected by the outdoor environment temperature is also approximately constant. When the gaseous adsorption medium mass transported to the intermediate heat dissipation part exceeds the adsorption medium mass corresponding to the maximum heat dissipation amount of the intermediate heat dissipation part, then part of the gaseous adsorption medium will not be sufficiently heat-dissipated and will enter the evaporation part, thereby causing problems such as excessive gaseous adsorption medium in the evaporation part, excessively high evaporation part temperature, and insufficient cold accumulation.

[0104] Therefore, in the present embodiment, the greater the temperature difference, the more adsorption medium is generated by desorption, and the more heat is absorbed by unit volume of gaseous adsorption medium, so the more heat dissipation amount of the intermediate heat dissipation part is occupied, and therefore the adsorption medium flow rate corresponding thereto is adjusted to a smaller value to reduce the gaseous adsorption medium mass flowing to the intermediate heat dissipation part, so that the gaseous adsorption medium flowing in can be better heat-dissipated in the intermediate heat dissipation part.

[0105] In some optional embodiments, the control method of the dual-refrigeration air conditioner of the present disclosure further comprises: adjusting the refrigeration power of the refrigerant refrigeration mode according to the temperature difference between the outdoor coil temperature of the outdoor heat exchanger and the desorption critical temperature.

[0106] Here, the size of the temperature difference between the outdoor coil temperature and the desorption critical temperature can directly reflect the desorption rate of the adsorption medium in the first adsorption part; therefore, in order to also meet one of the technical purposes of enabling the gaseous adsorption medium to be sufficiently heat-dissipated in the intermediate heat dissipation part, the refrigeration power of the refrigerant refrigeration mode of the refrigerant heat exchange system can also be adjusted, so as to change the heat dissipation amount of the outdoor heat exchanger, thereby adjusting the desorption rate of the adsorption medium in the first adsorption part.

[0107] Optionally, adjusting the refrigeration power of the refrigerant refrigeration mode according to the temperature difference between the outdoor coil temperature of the outdoor heat exchanger and the desorption critical temperature comprises: when the temperature difference is greater than or equal to a preset temperature difference threshold, controlling the refrigerant refrigeration mode to run at a first refrigeration power; and when the temperature difference is less than the preset temperature difference threshold, controlling the refrigerant refrigeration mode to run at a second refrigeration power.

[0108] Among them, the first refrigeration power is less than the second refrigeration power. In the case that the temperature difference is greater than or equal to the preset temperature difference threshold, the refrigerant refrigeration mode is controlled to run at the first refrigeration power with a smaller value, so that the outdoor heat exchanger generates less heat dissipation, thereby reducing the desorption rate of the adsorbent medium, so that the gaseous adsorbent medium can be fully cooled in the intermediate heat dissipation part; and in the case that the temperature difference is less than the preset temperature difference threshold, the refrigerant refrigeration mode is controlled to run at the second refrigeration power with a larger value, which can effectively increase the heat dissipation of the outdoor heat exchanger, thereby ensuring the desorption rate of the first adsorption part.

[0109] Optionally, the adjustment of the refrigeration power of the refrigerant refrigeration mode can be realized by changing the operating frequency of the compressor, for example, when it is determined to run the refrigerant refrigeration mode at the first refrigeration power, the compressor is controlled to operate at a first frequency; and when it is determined to run the refrigerant refrigeration mode at the second refrigeration power, the compressor is controlled to operate at a second frequency, wherein the first frequency is less than the second frequency.

[0110] It should be understood that other ways for adjusting the refrigeration power in the prior art can also be used for control, and the present application is not limited thereto.

[0111] In some optional embodiments, the control method of the dual-refrigeration air conditioner of the present disclosure further comprises: when the adsorption refrigeration system satisfies a preset cold storage completion condition, controlling to exit the desorption cold storage mode.

[0112] Optionally, the cold storage completion condition comprises: the adsorbent mass of the evaporation part being greater than or equal to a first medium mass threshold; in another optional embodiment, the cold storage completion condition comprises: the adsorbent mass of the first adsorption part being less than or equal to a second medium mass threshold; in another optional embodiment, the adsorbent mass of the second adsorption part is less than or equal to a third medium mass threshold.

[0113] The above-mentioned multiple optional cold storage completion conditions are judged according to the change of the adsorbent mass in the evaporation part or the two adsorption parts. In the desorption cold storage mode, the adsorbent medium in the first adsorption part and the second adsorption part flows to the evaporation part, therefore, when the adsorbent mass in the evaporation part exceeds the first medium mass threshold, it indicates that the liquid adsorbent mass accumulated in the evaporation part is relatively large, and the cold storage capacity is sufficient, so the desorption cold storage mode can be controlled to exit; similarly, when the adsorbent mass in the first adsorption part is lower than the second medium mass threshold, or the adsorbent mass in the second adsorption part is lower than the second medium mass threshold, it indicates that the adsorbent mass stored in the first adsorption part or the second adsorption part is relatively small, so the desorption cold storage mode can be controlled to exit.

[0114] Optionally, the first medium mass threshold is 80%, 90%, etc. of the total adsorbent mass.

[0115] The second medium mass threshold is 10%, 15%, etc. of the total adsorbent mass.

[0116] The third medium threshold is 10%, 15%, etc. of the total amount of the adsorption medium.

[0117] In some alternative embodiments, the steps of the control method for the dual refrigeration air conditioner of the present disclosure further include: when the dual refrigeration air conditioner is running in the first mode, controlling the outdoor fan to run at a first rotating speed; and when the adsorption refrigeration system exits the desorption and storage mode, controlling the outdoor fan to run at a second rotating speed.

[0118] In the present embodiment, the first rotating speed is less than the second rotating speed. Here, in the first mode, the desorption and storage mode of the adsorption refrigeration system is mainly to use the heat of the outdoor heat exchanger of the refrigerant heat exchange system to perform desorption of the adsorption medium of the adsorption unit, 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 driving to the outdoor environment, so that the heat can be concentrated in the surrounding environment of the adsorption unit to improve the desorption rate; and when the adsorption refrigeration system exits the desorption and storage mode, the outdoor fan is controlled to run at the second rotating speed with a larger value 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 and storage mode of the adsorption refrigeration system, that is, it can improve the desorption effect and also improve the refrigeration effect of the refrigerant heat exchange system.

[0119] For example, when the dual refrigeration air conditioner runs in the first mode, the first rotating speed of the outdoor fan is 400 r / min; and when the adsorption refrigeration system exits the desorption and storage mode, the second rotating speed of the outdoor fan is 600 r / min.

[0120] In some alternative embodiments, after controlling the adsorption refrigeration system to exit the desorption and storage mode, if the triggering condition of the adsorption refrigeration mode is met, the adsorption refrigeration system is controlled to enter the adsorption refrigeration mode.

[0121] In this way, the "cold energy" accumulated by the adsorption refrigeration system in the desorption and storage stage can be used to refrigerate the indoor environment. The desorption and storage stage is a heat transfer from the indoor side to the outdoor side by using the adsorbent to adsorb the adsorption medium, and therefore no energy is consumed. By combining the adsorption refrigeration and the refrigerant refrigeration, the power consumption required to maintain the indoor environment temperature within the range that the user feels comfortable can be effectively reduced, and the use cost of the dual refrigeration air conditioner can be reduced.

[0122] Figure 3 FIG. 1 is a structural schematic diagram of a control device for a dual refrigeration air conditioner provided by an embodiment of the present disclosure.

[0123] An embodiment of the present disclosure provides a control device for a dual refrigeration air conditioner, which has a structure as shown in Figure 3 FIG. 1.

[0124] 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 invoke the logic instructions in the memory 301 to execute the control method for the dual refrigeration air conditioner of the above-mentioned embodiments.

[0125] 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.

[0126] 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 program instructions / modules stored in the memory 301, thereby executing the function application and data processing, that is, implementing the control method for the dual refrigeration air conditioner in the above-mentioned method embodiments.

[0127] The memory 301 can include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required by a function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 301 can include a high-speed random access memory, and can also include a non-volatile memory.

[0128] Here, the dual refrigeration air conditioner provided by the embodiments of the present disclosure also includes the control device for the dual refrigeration air conditioner shown in the foregoing embodiments.

[0129] The embodiments of the present disclosure also provide a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to execute the control method for the dual refrigeration air conditioner.

[0130] The embodiments of the present disclosure also provide 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.

[0131] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0132] The technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product. 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 embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. various media that can store program codes, or can be a transitory 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 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 for a dual-cooling air conditioner, characterized in that, The dual-cooling air conditioner includes a refrigerant heat exchange system and an adsorption refrigeration system; wherein, the adsorption refrigeration system includes an evaporator disposed on the indoor side, a first adsorption section and a second adsorption section disposed on the outdoor heat exchanger and the compressor of the refrigerant heat exchange system, respectively, and the evaporator is connected to the first adsorption section and the second adsorption section respectively. The control method includes: When the dual-cooling air conditioner is operating in the first mode, the outdoor coil temperature of the outdoor heat exchanger is obtained; wherein, the first mode includes: the refrigerant heat exchange system is in refrigerant cooling mode and the adsorption cooling system is in desorption cold storage mode. Calculate the temperature difference between the outdoor coil temperature and the desorption critical temperature; Based on the temperature difference, the corresponding adsorption medium flow rate is found from a preset first correlation; wherein the adsorption medium flow rate and the temperature difference are negatively correlated in the first correlation. Adjust the flow rate of the adsorption medium from the first adsorption section to the evaporation section.

2. The control method according to claim 1, characterized in that, Prior to the first operating mode of the dual-cooling air conditioner, the following is also included: The outdoor coil temperature of the outdoor heat exchanger and the casing temperature of the compressor are determined to be greater than the outdoor ambient temperature on the outdoor side.

3. The control method according to claim 1, characterized in that, Also includes: The cooling power of the refrigerant cooling mode is adjusted based on the temperature difference between the outdoor coil temperature of the outdoor heat exchanger and the desorption critical temperature.

4. The control method according to claim 3, characterized in that, Adjusting the cooling power of the refrigerant refrigeration mode based on the temperature difference between the outdoor coil temperature of the outdoor heat exchanger and the desorption critical temperature includes: When the temperature difference is greater than or equal to the preset temperature difference threshold, the refrigerant refrigeration mode is controlled to operate at the first refrigeration power. When the temperature difference is less than the preset temperature difference threshold, the refrigerant refrigeration mode is controlled to operate at the second refrigeration power. Wherein, the first cooling power is less than the second cooling power.

5. The control method according to claim 1, characterized in that, Also includes: When the adsorption refrigeration system meets the preset cold storage completion conditions, the system is controlled to exit the desorption cold storage mode.

6. The control method according to claim 5, characterized in that, The conditions for completing the cold storage include: The amount of adsorbent medium in the evaporation section is greater than or equal to the first medium amount threshold; or... The amount of adsorption medium in the first adsorption section is less than or equal to the threshold amount of the second medium; or... The amount of adsorption medium in the second adsorption section is less than or equal to the threshold amount of the third medium.

7. A control device for a dual-cooling air conditioner, characterized in that, The dual-cooling air conditioner includes a refrigerant heat exchange system and an adsorption refrigeration system; wherein, the adsorption refrigeration system includes an evaporator disposed on the indoor side, a first adsorption section and a second adsorption section disposed on the outdoor heat exchanger and the compressor of the refrigerant heat exchange system, respectively, and the evaporator is connected to the first adsorption section and the second adsorption section respectively. The control device includes a processor and a memory storing program instructions, the processor being configured to execute the control method for a dual-cooling air conditioner as described in any one of claims 1 to 6 when executing the program instructions.

8. A dual-cooling air conditioner, characterized in that, include: The refrigerant heat exchange system mainly includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, and a throttling device; One or more adsorption refrigeration systems, each of the adsorption refrigeration systems comprising: An evaporation section is located at the indoor heat exchanger of the refrigerant heat exchange system; The first adsorption section is located at the outdoor 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 adsorption section and the evaporation section. The second adsorption section is located at the compressor 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 second adsorption section and the evaporation section. The control device for a dual-cooling air conditioner as described in claim 7.

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