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 a refrigerant heat exchange system is running in a refrigerant heating mode, the first shell temperature of a compressor is acquired; if the first shell temperature meets a preset outdoor unit auxiliary heating condition, an adsorption refrigeration system is controlled to run in an outdoor unit auxiliary heating mode; wherein the outdoor unit auxiliary heating mode comprises: the first adsorption part is disconnected from the evaporation part, and the first adsorption part is kept in communication with the second adsorption part. The control method provided by the embodiment of the application utilizes the outdoor unit auxiliary heating mode of the adsorption refrigeration system to transfer a large amount of heat of the compressor to the outdoor heat exchanger, so that the waste heat of the compressor is utilized to supplement the heat of the outdoor heat exchanger, thereby improving the heat absorption amount of the outdoor heat exchanger under the low-temperature working condition in winter and improving the heating effect of the refrigerant heat exchange system. The application also 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 heating in the prior art.

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

[0012] When the refrigerant heat exchange system is running in the refrigerant heating mode, a first shell temperature of the compressor is obtained;

[0013] If the first shell temperature meets a preset outdoor unit auxiliary heating condition, the adsorption refrigeration system is controlled to run in an outdoor unit auxiliary heating mode;

[0014] The outdoor unit auxiliary heating mode comprises: the first adsorption part is disconnected from the evaporation part, and the first adsorption part is kept in communication with the second adsorption part.

[0015] In some embodiments, the control device for the dual refrigeration air conditioner comprises:

[0016] The processor and the memory storing program instructions, the processor is configured to execute the program instructions, and execute the control method for the dual refrigeration air conditioner in some embodiments.

[0017] In some embodiments, the dual refrigeration air conditioner comprises:

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

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

[0020] The evaporation part is arranged at the indoor heat exchanger of the refrigerant heat exchange system;

[0021] The first adsorption part is arranged at the outdoor heat exchanger of the refrigerant heat exchange system, and a first adsorption medium conveying flow path that can be turned on and off is constructed between the first adsorption part and the evaporation part;

[0022] The second adsorption part is arranged at the compressor of the refrigerant heat exchange system, a second adsorption medium conveying flow path that can be turned on and off is constructed between the second adsorption part and the evaporation part, and a third adsorption medium conveying flow path that can be turned on and off is constructed between the second adsorption part and the first adsorption part;

[0023] The control device for the dual refrigeration air conditioner in some embodiments.

[0024] The control method, device and dual refrigeration air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0025] The control method for the double-refrigeration air conditioner provided by the embodiments of the present disclosure can, in the case of determining that the outdoor auxiliary heating condition is met according to the shell temperature of the compressor, transfer a large amount of heat of the compressor to the outdoor heat exchanger by using the outdoor auxiliary heating mode of the adsorption refrigeration system, so as to use the waste heat of the compressor to supplement the heat of the outdoor heat exchanger, and then improve the heat absorption amount of the outdoor heat exchanger in the low-temperature working condition in winter, and improve the heating effect of the refrigerant heat exchange system. The embodiments of the present disclosure are not simply superimposing two refrigeration systems in the same air conditioner, but skillfully combining two sets of refrigeration structures and refrigeration 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 performance of the air conditioner.

[0026] 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

[0027] 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 denote like elements in the figures, and in which:

[0028] Figure 1 is a structural schematic diagram of a double-refrigeration air conditioner provided by the embodiments of the present disclosure;

[0029] Figure 2 is a flow schematic diagram of a control method for a double-refrigeration air conditioner provided by the embodiments of the present disclosure;

[0030] 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

[0031] 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 show.

[0032] Figure 1 is a structural schematic diagram of a double-refrigeration air conditioner provided by the embodiments of the present disclosure;

[0033] 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.

[0034] 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 to form a refrigerant circulation loop through refrigerant pipelines, and the refrigerant flows along the flow direction set according to different operation modes to realize different operation mode functions.

[0035] 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.

[0036] 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.

[0037] The refrigerant flow direction set when the refrigerant heat exchange system operates in the refrigeration mode is that the high-temperature refrigerant discharged from 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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 heat 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.

[0044] 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.

[0045] 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.

[0046] 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 heat storage stage and the adsorption stage, so as to improve the desorption and heat storage effect and the adsorption effect of the adsorption refrigeration system group as a whole.

[0047] In some embodiments, the second adsorption part 22 is in a ring 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.

[0048] 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.

[0049] 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.

[0050] 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 and side by side along the longitudinal direction of the compressor 13.

[0051] 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 heat 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.

[0052] In some optional embodiments, the indoor heat exchanger 11 is in a structure form that the longitudinal section is in a zigzag shape 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.

[0053] 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.

[0054] Optionally, the adsorption medium conveying flow path is also constructed between the adjacent evaporation parts 23; in this way, during the desorption and heat storage stage and the adsorption and heat storage stage, the liquid and gaseous adsorption medium can flow between the plurality of evaporation parts 23, thereby improving the desorption and heat storage effect and the adsorption refrigeration effect of the entire adsorption refrigeration system group.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

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

[0060] 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.

[0061] 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.

[0062] 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 the ambient air flow around the intermediate heat dissipation part by the driving action of the outdoor fan, thereby improving the heat dissipation effect.

[0063] 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.

[0064] 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.

[0065] 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 the form of liquid.

[0066] 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.

[0067] 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.

[0068] 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".

[0069] Optionally, the first desorption flow path is arranged as a 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.

[0070] In the present embodiment, a second adsorption medium transport 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 via the second adsorption medium transport flow path.

[0071] Here, the second adsorption medium transport 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 transporting the adsorption medium in the cold accumulation phase, and the second adsorption flow path is a flow path for transporting the adsorption medium in the adsorption phase.

[0072] Here, the second adsorption medium transport flow path can be configured in the same manner as the first adsorption medium transport flow path in the previous embodiment, and thus will not be described here.

[0073] In the present embodiment, the adsorption refrigeration system further includes two control valves, wherein a first control valve 26 is arranged on the first adsorption medium transport flow path to control the on-off state and flow rate of the first adsorption medium transport flow path, and a second control valve 27 is arranged on the second adsorption medium transport flow path to control the on-off state and flow rate of the second adsorption medium transport 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-mentioned embodiments, so that the flow rate on-off control in the desorption cold accumulation and adsorption phases of the adsorption portion can be realized by only one control valve.

[0074] Alternatively, a control valve can also be arranged on the desorption flow path and the adsorption flow path of each adsorption medium transport flow path respectively to control the on-off state and flow rate of the corresponding flow path by the respective control valve.

[0075] In some embodiments, a third adsorption medium transport flow path is configured between the second adsorption portion 22 and the first adsorption portion 21, and the adsorption medium can flow between the second adsorption portion 22 and the first adsorption portion 21 via the third adsorption medium transport flow path.

[0076] Optionally, the second adsorption medium transport flow path further includes parallel pipe sections, one of which is provided with a first one-way valve for limiting the flow of adsorption medium from the first adsorption portion 21 to the second adsorption portion 22, and the other of which is provided with a second one-way valve for limiting the flow of adsorption medium from the second adsorption portion 22 to the first adsorption portion 21.

[0077] Here, in the desorption cold storage stage, the second one-way valve can be controlled to be opened and the first one-way valve can be controlled to be closed, so that the adsorption medium can only flow from the second adsorption part 22 to the first adsorption part 21 through the second one-way valve, so that the adsorption medium can be limited to flow in the direction of the evaporation part, and the situation that the adsorption medium in the first adsorption part 21 flows to the second adsorption part 22 is reduced; and in the adsorption refrigeration stage, the first one-way valve can be controlled to be opened and the second one-way valve can be controlled to be closed, so that the adsorption medium can only flow from the first adsorption part 21 to the second adsorption part 22 through the first one-way valve, so as to ensure that the adsorption medium in the second adsorption part 22 can be effectively adsorbed by the adsorbent in the adsorption refrigeration stage, and the situation that the adsorption medium flows back to the first adsorption part 21 is reduced.

[0078] In still some embodiments, a fourth adsorption medium conveying flow path is configured between the second adsorption part and the evaporation part, and the adsorption medium can flow directly between the second adsorption part and the evaporation part through the fourth adsorption medium conveying flow path, and no intermediate heat dissipation part is arranged on the fourth adsorption medium conveying flow path. Here, a third control valve 28 for controlling the on-off state of the fourth adsorption medium conveying flow path is arranged on the fourth adsorption medium conveying flow path, and the third control valve 28 can be used to control the fourth adsorption medium conveying flow path to be in a closed state or a conductive state according to actual control needs.

[0079] The cooperation working modes of the adsorption refrigeration system and the refrigerant heat exchange system in the embodiments of the present disclosure will be described below:

[0080] In the present embodiment, the operation modes of the adsorption refrigeration system mainly include a desorption cold storage mode and an adsorption refrigeration mode. The desorption cold storage mode corresponds to the desorption cold storage stage in the foregoing embodiments, and is mainly used for accumulating "cold energy". The adsorption refrigeration mode corresponds to the adsorption refrigeration stage in the foregoing embodiments, and is mainly used for releasing the "cold energy" accumulated in the desorption cold storage stage, so as to realize refrigeration and cooling of the indoor side.

[0081] Here, the adsorption refrigeration system runs in the desorption cold storage mode under the premise that the refrigerant heat exchange system runs in the refrigerant refrigeration mode or the refrigerant dehumidification mode. Here, when the refrigerant heat exchange system runs in the refrigerant refrigeration mode, the outdoor heat exchanger 12 and the compressor 13 simultaneously release heat, and the heat is respectively transferred to the first adsorption part 21 and the second adsorption part 22. The adsorption medium adsorbed by the adsorbent in the two adsorption parts absorbs heat and is desorbed into gaseous adsorption medium, which then enters the corresponding intermediate heat dissipation part through the desorption flow path to be condensed. The liquid adsorption medium obtained by condensation enters the evaporation part 23 to serve as the accumulated "cold energy".

[0082] And the adsorption refrigeration system runs the adsorption refrigeration mode under the premise that the refrigerant heat exchange system does not run the refrigerant refrigeration mode or the refrigerant dehumidification mode. Here, when the refrigerant heat exchange system does not run the refrigerant refrigeration mode or the refrigerant dehumidification mode, the outdoor heat exchanger 12 and the compressor 13 both stop working and do not release heat to the outside, so the temperature of the first adsorption part 21 is lower than when the outdoor heat exchanger 12 releases heat, and the temperature of the second adsorption part 22 is also lower than when the compressor 13 releases heat, so that the adsorbent in the two adsorption parts starts to re-adsorb the adsorbent. Under the combined influence of factors such as adsorbent concentration, pressure, and indoor environment temperature, the liquid adsorbent in the evaporation part 23 starts to absorb heat and evaporate into gaseous adsorbent, and then flows back to the first adsorption part 21 and the second adsorption part 22 through the respective adsorption flow paths. During this process, the adsorbent absorbs heat from the indoor environment, and after the adsorbent is re-adsorbed by the adsorbent, the heat is released to the outdoor environment where the adsorption part is located. Therefore, by reversing the flow of the adsorbent compared to the desorption and cold storage stage, the adsorption refrigeration cooling of the indoor environment can be achieved.

[0083] Here, in the desorption and cold storage mode and the adsorption refrigeration mode, only one of the first adsorption part 21 and the second adsorption part 22 can be enabled, or both the first adsorption part 21 and the second adsorption part 22 can be enabled.

[0084] Figure 2 A flowchart of a control method for a dual refrigeration air conditioner is provided in an embodiment of the present disclosure.

[0085] As shown in Figure 2 , a control method for a dual refrigeration air conditioner is provided in an embodiment of the present disclosure. Optionally, the control method can be applied to the dual refrigeration air conditioner as shown in Figure 1 the embodiment; the control method can be used to solve the problem that the prior art does not use both refrigerant refrigeration and adsorption refrigeration to achieve air conditioning heating; in the embodiment, the main flow steps of the control method include:

[0086] S201, acquiring the first shell temperature of the compressor when the refrigerant heat exchange system runs in the refrigerant heating mode;

[0087] In this embodiment, the flow is mainly applied to winter low-temperature working conditions; here, when the dual refrigeration air conditioner is started in winter low-temperature working conditions, the default start mode of the refrigerant heat exchange system is to run in the refrigerant heating mode. During this process, the outdoor heat exchanger of the refrigerant heat exchange system starts to absorb heat from the outdoor environment, increasing the temperature of the refrigerant inside the outdoor heat exchanger; the heat-absorbed refrigerant is compressed by the compressor and then delivered to the indoor heat exchanger, and the heat of the refrigerant is dissipated to the indoor environment through heat exchange between the indoor heat exchanger and the indoor environment, thereby achieving the effect of heating and warming the indoor environment.

[0088] Optionally, the outdoor unit of the dual-refrigeration air conditioner is provided with a temperature sensor arranged on the compressor body and used for detecting the real-time temperature of the compressor body; thus, in step S201, the first shell temperature of the compressor can be obtained through the temperature sensor.

[0089] S202, if the first shell temperature meets the preset outdoor unit auxiliary heating condition, the adsorption refrigeration system is controlled to run in the outdoor unit auxiliary heating mode.

[0090] In some optional embodiments, the outdoor unit auxiliary heating condition includes that the first shell temperature of the compressor is greater than or equal to a set shell temperature threshold.

[0091] Here, the set shell temperature threshold is a temperature parameter used for measuring whether the heat of the compressor body itself can meet the auxiliary heating requirement of the outdoor heat exchanger; in the case where the first shell temperature of the compressor is greater than or equal to the set shell temperature threshold, the heat contained in the compressor body itself is relatively large, and more heat can be supplied to the outdoor heat exchanger; and in the case where the first shell temperature of the compressor is less than the set shell temperature threshold, the heat contained in the compressor body itself is relatively small, and the auxiliary heating requirement of the outdoor heat exchanger cannot be met.

[0092] In the present embodiment, in the case where the first shell temperature meets the outdoor unit auxiliary heating condition, the adsorption refrigeration system is controlled to run in the outdoor unit auxiliary heating mode; here, the first adsorption part and the second adsorption part are kept in communication in the outdoor unit auxiliary heating mode, and since the second adsorption part is affected by the high temperature of the compressor, the adsorbent of the second adsorption part can desorb more gaseous adsorbent from the adsorbent, and the gaseous adsorbent itself has a relatively high temperature and can flow to the first adsorption part at the low-temperature side along the connecting passage between the first adsorption part and the second adsorption part; here, after the gaseous adsorbent flows into the first adsorption part, part of the heat of the gaseous adsorbent is directly conducted to the first adsorption part through thermal conduction contact, and the other part of the heat is conducted to the first adsorption part through the heat release caused by the adsorption of the adsorbent, and the heat is subsequently transferred to the outside and absorbed by the refrigerant in the outdoor heat exchanger, thus achieving the auxiliary heating purpose of the outdoor heat exchanger.

[0093] Meanwhile, in the outdoor unit auxiliary heating mode, the first adsorption part is disconnected from the evaporation part, so that the gaseous adsorbent cannot flow to the intermediate heat dissipation part through the adsorbent conveying flow path, so that most of the heat carried by the gaseous adsorbent can be released in the first adsorption part, ensuring the auxiliary heating effect of the outdoor heat exchanger and effectively improving the heating performance of the refrigerant heat exchange system.

[0094] Here, the first adsorption part is communicated with the evaporation part through a first adsorption medium conveying flow path, and a control valve for controlling the on-off state of the first adsorption medium conveying flow path is arranged on the first adsorption medium conveying flow path; the first adsorption part is communicated with the second adsorption part through a third adsorption part medium conveying flow path, and a control valve for controlling the on-off state of the third adsorption part medium conveying flow path is arranged on the third adsorption part medium conveying flow path. Therefore, in the case of needing to operate the outdoor unit auxiliary heating mode, the control valve on the first adsorption medium conveying flow path can be controlled to be closed, and the control valve on the third adsorption medium conveying flow path can be controlled to be opened.

[0095] The control method for the double-refrigeration air conditioner provided by the embodiments of the present disclosure can transfer a large amount of heat of the compressor to the outdoor heat exchanger by the outdoor unit auxiliary heating mode of the adsorption refrigeration system when it is determined that the outdoor unit auxiliary heating condition is met according to the shell temperature of the compressor, so that the waste heat of the compressor is used to supplement the heat of the outdoor heat exchanger, thereby improving the heat absorption amount of the outdoor heat exchanger in the low-temperature working condition in winter and improving the heating effect of the refrigerant heat exchange system. The embodiments of the present disclosure are not simply superimposing two refrigeration systems in the same air conditioner, but skillfully combining two sets of refrigeration structures and refrigeration 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 performance of the air conditioner.

[0096] In some optional embodiments, the control method for the double-refrigeration air conditioner of the present disclosure further includes: obtaining the adsorption medium quality of the second adsorption part before controlling the adsorption refrigeration system to operate the outdoor unit auxiliary heating mode; and determining whether the adsorption medium quality meets a preset auxiliary heating medium quality condition.

[0097] Here, the heat of the compressor is mainly absorbed by the adsorbed adsorption medium in the second adsorption part, and too little adsorption medium quality will result in too little delivered heat; therefore, to ensure that the heat delivered by the compressor to the outdoor heat exchanger can meet the auxiliary heating demand, it is necessary to determine whether the second adsorption part meets the preset auxiliary heating medium quality condition before controlling the adsorption refrigeration system to enter the outdoor unit auxiliary heating mode. Here, the auxiliary heating medium quality condition is a condition for representing the adsorption medium quality required for achieving a better auxiliary heating effect on the outdoor heat exchanger.

[0098] Optionally, the auxiliary heating medium quality condition includes that the adsorption medium quality is greater than or equal to a preset medium quality threshold. The preset medium quality threshold is a lower limit for representing the adsorption medium quality required for achieving a better auxiliary heating effect on the outdoor heat exchanger; when the adsorption medium quality is greater than or equal to the preset medium quality threshold, the outdoor unit auxiliary heating mode can be started to achieve a better auxiliary heating effect on the outdoor heat exchanger, and when the adsorption medium quality is less than the preset medium quality threshold, the auxiliary heating effect of the outdoor unit auxiliary heating mode on the outdoor heat exchanger is limited.

[0099] Optionally, the threshold of the adsorbed medium mass is 50%-60% of the maximum adsorbed medium mass that the second adsorption part can adsorb.

[0100] In some embodiments, the method for obtaining the adsorbed medium mass of the second adsorption part comprises: detecting the weight of the second adsorption part; and determining the adsorbed medium mass of the second adsorption part according to the weight.

[0101] In the embodiment, the bottom of the second adsorption part is provided with a weighing sensor, which can be used to detect the real-time weight of the second adsorption part as a whole; here, before the desorption and cold storage mode is run, most of the adsorbed medium is concentrated in the second adsorption part, so at this time the weight detected by the weighing sensor is mainly the sum of the weights of the adsorbed medium, the adsorbent and the structure of the second adsorption part itself; wherein the weights of the adsorbent and the structure of the second adsorption part itself are known, so the amount of the current adsorbed medium can be calculated accordingly.

[0102] In the embodiment, the dual refrigeration air conditioner is also preconfigured with an association relationship, and the preconfigured association relationship includes a one-to-one correspondence relationship between the weights of different adsorption parts and the adsorbed medium masses. For example, when the weight of the adsorption part is A, the adsorbed medium mass is a; and when the weight of the adsorption part is B, the adsorbed medium mass is b, and so on.

[0103] In this way, the corresponding adsorbed medium mass can be obtained from the preconfigured association relationship according to the weight of the second adsorption part.

[0104] In some optional embodiments, the control method for the dual refrigeration air conditioner of the present disclosure further comprises: during the operation of the outdoor auxiliary heating mode, obtaining the outer coil temperature of the outdoor heat exchanger; and adjusting the first adsorbed medium flow according to the outer coil temperature.

[0105] Here, the first adsorbed medium flow is the adsorbed medium flow transported from the second adsorption part to the first adsorption part.

[0106] In the embodiment, the high or low of the outer coil temperature of the outdoor heat exchanger can reflect the heat demand of the refrigerant heat exchange system, in the case that the outer coil temperature of the outdoor heat exchanger is low, it means that the heat demand of the refrigerant heat exchange system is high, and in the case that the outer coil temperature of the outdoor heat exchanger is high, it means that the heat demand of the refrigerant heat exchange system is low; at the same time, the first adsorbed medium flow is a reference parameter that can affect how much heat is supplied from the compressor to the outdoor heat exchanger, in the case that the first adsorbed medium flow is large, the heat supplied from the compressor to the outdoor heat exchanger is large, and in the case that the first adsorbed medium flow is small, the heat supplied from the compressor to the outdoor heat exchanger is small. Therefore, the embodiment of the present disclosure adjusts the first adsorbed medium flow according to the outer coil temperature of the outdoor heat exchanger, so that the actual heat supplied from the compressor to the outdoor heat exchanger can meet the current heat demand of the refrigerant heat exchange system, thereby improving the heating effect of the refrigerant heat exchange system.

[0107] In the embodiment, the control valve arranged on the third adsorption medium conveying flow path can not only control the on-off state of the third adsorption medium conveying flow path, but also adjust the first adsorption medium flow passing through the third adsorption medium conveying flow path by changing the flow opening.

[0108] Optionally, the adsorption medium flow is adjusted according to the outer coil temperature, comprising: according to the outer coil temperature, matching the corresponding first adsorption medium flow from the preset first correlation relationship.

[0109] The first correlation relationship includes one or more one-to-one correspondence relationships between the outer coil temperature and the first adsorption medium flow, for example, the first adsorption medium flow corresponding to the outer coil temperature T1 is q1, the second adsorption medium flow corresponding to the outer coil temperature T2 is q2, and so on.

[0110] In the first correlation relationship, the outer coil temperature and the first adsorption medium flow are in a negative correlation relationship; that is, the smaller the outer coil temperature, the higher the heat demand of the refrigerant heat exchange system, and more heat needs to be supplied from the compressor to the outdoor heat exchanger, so the first adsorption medium flow is set to a larger flow value to meet the heat supply demand of the outdoor heat exchanger; otherwise, the second adsorption medium flow is set to a smaller flow value.

[0111] In some optional embodiments, the control method of the dual refrigeration air conditioner of the present disclosure further comprises: if the preset indoor auxiliary heating condition is met, controlling the adsorption refrigeration system to run in an indoor auxiliary heating mode.

[0112] In some optional embodiments, the indoor auxiliary heating condition comprises: the indoor environment temperature is less than or equal to a set indoor ring temperature threshold.

[0113] Here, the set indoor ring temperature threshold is a temperature parameter for measuring the influence of the indoor environment temperature on user comfort; in the case where the indoor environment temperature is less than or equal to the set indoor ring temperature threshold, the indoor environment is relatively cold for the user, and the user comfort is poor; and in the case where the indoor environment temperature is greater than the set indoor ring temperature threshold, the indoor environment is relatively warm for the user, and the user comfort is high.

[0114] In the embodiment, when the preset indoor auxiliary heating condition is met, the adsorption refrigeration system is controlled to run in the indoor auxiliary heating mode; here, in the indoor auxiliary heating mode, the evaporation part is disconnected from the first adsorption part, and the second adsorption medium conveying flow path of the second adsorption part is disconnected, and the fourth adsorption medium conveying flow path remains connected; wherein, the second adsorption medium conveying flow path is provided with an intermediate heat dissipation part. Here, the gaseous adsorption medium produced by desorption in the second adsorption part only flows into the evaporation part through the fourth adsorption medium conveying flow path without passing through the intermediate heat dissipation part, and the gaseous adsorption medium itself carries a lot of heat, so that after the gaseous adsorption medium flows into the evaporation part, the heat can be conducted to the evaporation part, and then the heat can be dissipated to the indoor environment, thereby achieving the technical effect of using the heat of the compressor to assist heating the indoor environment.

[0115] Here, in addition to the adsorption medium conveying flow path shown in the foregoing, the second adsorption part is additionally provided with a fourth adsorption medium conveying flow path directly connected to the evaporation part, and a control valve for controlling the on-off state of the fourth adsorption medium conveying flow path is arranged on the fourth adsorption medium conveying flow path. Therefore, when the indoor auxiliary heating mode needs to be run, the control valve on the fourth adsorption medium conveying flow path can be opened to achieve this. At this time, the control valves on the first adsorption medium conveying flow path and the second adsorption medium conveying flow path are in the closed state.

[0116] Optionally, the outdoor auxiliary heating mode and the indoor auxiliary heating mode can be simultaneously opened and run, at this time, the third adsorption medium conveying flow path and the fourth adsorption medium conveying flow path are in the conducting state, and the first adsorption medium conveying flow path and the second adsorption medium conveying flow path are in the blocking state. Thus, the waste heat of the compressor can be used to simultaneously increase the heat absorption of the outdoor heat exchanger and directly supply heat to the indoor environment.

[0117] In some optional embodiments, the control method of the dual refrigeration air conditioner of the present disclosure further comprises: during the running of the indoor auxiliary heating mode, obtaining the indoor environment temperature; and adjusting the second adsorption medium flow rate according to the indoor environment temperature.

[0118] Here, the second adsorption medium flow rate is the flow rate of the adsorption medium conveyed by the second adsorption part to the evaporation part through the fourth adsorption medium conveying flow path.

[0119] In the embodiment, the indoor environment temperature can reflect the heat demand for heating the indoor environment. When the indoor environment temperature is low, the heat demand for heating the indoor environment is high, and when the indoor environment temperature is high, the heat demand for heating the indoor environment is high. Meanwhile, the second adsorption medium flow is a reference parameter that can affect the heat supply from the compressor to the evaporating part. When the second adsorption medium flow is large, the heat supply from the compressor to the evaporating part is large, and when the second adsorption medium flow is small, the heat supply from the compressor to the evaporating part is small. Therefore, the second adsorption medium flow is adjusted according to the indoor environment temperature in the embodiment, so that the actual heat supply from the compressor to the evaporating part can meet the current heat demand of the indoor environment.

[0120] Optionally, the second adsorption medium flow is adjusted according to the indoor environment temperature, including: according to a preset second correlation relationship, the second adsorption medium flow corresponding to the indoor environment temperature is found.

[0121] In the embodiment, the preset second correlation relationship includes one or more corresponding relationships between the indoor environment temperature and the second adsorption medium flow. In the second correlation relationship, the indoor environment temperature and the second adsorption medium flow are in a negative correlation relationship.

[0122] In some optional embodiments, the control method of the dual refrigeration type air conditioner of the present disclosure further includes: during the process of operating the adsorption refrigeration system in the outdoor unit auxiliary heating mode, obtaining the second shell temperature of the compressor; if the second shell temperature does not meet the preset outdoor unit auxiliary heating condition, controlling the adsorption refrigeration system to exit the outdoor unit auxiliary heating mode.

[0123] Here, the heat of the compressor itself cannot be too low during the process of supplying heat to the outdoor heat exchanger. If the heat of the compressor itself is too low, the compressor body will absorb heat from the compressed refrigerant inside, which will actually reduce the actual discharge temperature of the compressor and affect the refrigerant heat exchange effect. Therefore, in the embodiment, if the second shell temperature detected during the operation of the outdoor unit auxiliary heating mode does not meet the preset outdoor unit auxiliary heating condition, the adsorption refrigeration system is controlled to exit the outdoor unit auxiliary heating mode to avoid the adverse effects of the continued operation of the outdoor unit auxiliary heating mode on the compression performance of the compressor.

[0124] Optionally, the outdoor unit auxiliary heating mode can be exited by controlling the closing of the control valve on the third adsorption medium conveying flow path.

[0125] In some optional embodiments, the steps of the control method of the dual refrigeration type air conditioner of the present disclosure further include: controlling the outdoor fan to operate at a first rotating speed when the adsorption refrigeration system operates in the outdoor unit auxiliary heating mode; and controlling the outdoor fan to operate at a second rotating speed when the adsorption refrigeration system exits the outdoor unit auxiliary heating mode.

[0126] In the embodiment, the first rotation speed is less than the second rotation speed. Here, the rotation speed of the outdoor fan mainly affects the heat exchange efficiency between the outdoor heat exchanger and the surrounding environment, and can affect the efficiency of heat dissipation of the first adsorption part to the surrounding environment. When the adsorption refrigeration system runs in the outdoor unit auxiliary heating mode, the outdoor fan is controlled to run at the first rotation speed with a smaller value, so as to slow down the speed of heat dissipation of the first adsorption part to the outdoor environment, so that the heat can be concentrated around the outdoor heat exchanger, thereby improving the auxiliary heating effect on the outdoor heat exchanger; when the adsorption refrigeration system exits the outdoor unit auxiliary heating mode, the outdoor heat exchanger becomes only capable of absorbing heat from the outdoor environment, and the outdoor fan is controlled to run at the second rotation speed with a larger value, so as to speed up the heat exchange rate between the outdoor heat exchanger and the outdoor environment.

[0127] For example, when the adsorption refrigeration system runs in the outdoor unit auxiliary heating mode, the first rotation speed of the outdoor fan is 400 r / min; and when the adsorption refrigeration system exits the outdoor unit auxiliary heating mode, the second rotation speed of the outdoor fan is 600 r / min.

[0128] Figure 3 FIG. 1 is a structural schematic diagram of a control device for a dual refrigeration air conditioner provided by the embodiment of the present disclosure.

[0129] The 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, and includes:

[0130] 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 logical instructions in the memory 301 to execute the control method for the dual refrigeration air conditioner in the above embodiment.

[0131] In addition, the logical 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.

[0132] 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 embodiment of the present disclosure. The processor 300 executes the program instructions / modules stored in the memory 301, thereby executing function applications and data processing, that is, implementing the control method for the dual refrigeration air conditioner in the above method embodiment.

[0133] 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.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0138] 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), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes, or can be a transitory storage medium.

[0139] 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 the inclusion from the listed features, integers, steps, operations, elements, and / or components but that not to the exclusion of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. Unless otherwise required by context, recitations of "comprises" shall not exclude the presence of additional same items or steps, whether or not further described. Throughout this document, each embodiment can be focused on the differences from other embodiments, and the same or similar parts between embodiments can be cross-referenced. For methods, products, and the like disclosed in embodiments, if they correspond to parts of the methods disclosed in embodiments, the relevant parts can be cross-referenced with the description of the method parts.

[0140] 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.

[0141] 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.

[0142] 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, the evaporator being configurably connected to the first adsorption section and the second adsorption section, and the first adsorption section being configurably connected to the second adsorption section. The control method includes: When the refrigerant heat exchange system is operating in refrigerant heating mode, the first casing temperature of the compressor is obtained; If the temperature of the first housing meets the preset outdoor unit auxiliary heating conditions, then the adsorption refrigeration system is controlled to operate in outdoor unit auxiliary heating mode. The outdoor unit auxiliary heating mode includes: the first adsorption section is disconnected from the evaporation section, and the first adsorption section is kept in communication with the second adsorption section; During the operation of the outdoor unit in auxiliary heating mode, the temperature of the outdoor heat exchanger's outer coil is acquired; the flow rate of the first adsorption medium is adjusted according to the temperature of the outer coil; wherein, the flow rate of the first adsorption medium is the flow rate of the adsorption medium transported from the second adsorption section to the first adsorption section.

2. The control method according to claim 1, characterized in that, The auxiliary heating conditions for the outdoor unit include: the first casing temperature of the compressor is greater than or equal to a set casing temperature threshold.

3. The control method according to claim 1, characterized in that, Before controlling the adsorption refrigeration system to operate in the outdoor unit auxiliary heating mode, the following is also included: Obtain the amount of adsorption medium in the second adsorption section; The amount of adsorbed medium is determined to meet a preset auxiliary heating medium amount condition; wherein, the auxiliary heating medium amount condition includes the amount of adsorbed medium being greater than or equal to a preset medium amount threshold.

4. The control method according to claim 1, characterized in that, Adjusting the flow rate of the first adsorption medium according to the temperature of the external coil includes: Based on the external coil temperature, the corresponding first adsorption medium flow rate is obtained from a preset first correlation relationship; wherein, the first correlation relationship includes one or more one-to-one correspondences between external coil temperature and first adsorption medium flow rate.

5. The control method according to claim 1, characterized in that, Also includes: If the preset indoor unit auxiliary heating conditions are met, the adsorption refrigeration system is controlled to operate in indoor unit auxiliary heating mode. The indoor unit auxiliary heating mode includes: the evaporation section is disconnected from the first adsorption section, the second adsorption medium transport path between the evaporation section and the second adsorption section is disconnected, and the fourth adsorption medium transport path remains connected; wherein the second adsorption medium transport path is provided with an intermediate heat dissipation section, and the second adsorption section is provided with a fourth adsorption medium transport path that is directly connected to the evaporation section.

6. The control method according to claim 5, characterized in that, Also includes: During the operation of the indoor unit in auxiliary heating mode, the indoor ambient temperature is acquired; The flow rate of the second adsorption medium is adjusted according to the indoor ambient temperature; wherein, the flow rate of the second adsorption medium is the flow rate of the adsorption medium delivered by the second adsorption section to the evaporation section via the fourth adsorption medium conveying path.

7. The control method according to any one of claims 1 to 6, characterized in that, Also includes: During the operation of the outdoor unit auxiliary heating mode of the adsorption refrigeration system, the second casing temperature of the compressor is obtained; If the temperature of the second housing does not meet the preset outdoor unit auxiliary heating conditions, the adsorption refrigeration system is controlled to exit the outdoor unit auxiliary heating mode.

8. 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, the evaporator being connected to the first adsorption section and the second adsorption section, and the first adsorption section being configurably connected to the second adsorption section. 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 7 when executing the program instructions.

9. 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. 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, and a third adsorption medium transport flow path that can be switched on and off is constructed between the second adsorption section and the first adsorption section. The control device for a dual-cooling air conditioner as described in claim 8.

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