Composite air conditioning system, control method and device for composite air conditioning system and computer readable storage medium

Abstract

The invention relates to the technical field of air conditioners, and discloses a composite air-conditioning system which comprises a housing air-conditioning system comprising a first compressor, a first four-way valve, a housing heat exchanger, a first control valve, a first outdoor heat exchanger, a second control valve and a first machine room heat exchanger; the first control valve and the first outdoor heat exchanger form a first heat exchange branch, the second control valve and the first machine room heat exchanger form a second heat exchange branch, and the second heat exchange branch and the first heat exchange branch are connected in parallel; the machine room air conditioning system comprises a second compressor, a second outdoor heat exchanger, a fifth control valve and a second machine room heat exchanger; the second machine room heat exchanger and the first machine room heat exchanger are arranged side by side. The energy utilization rate is increased, the overall energy consumption of the composite air conditioning system is reduced, the better energy-saving effect is achieved, and popularization and market competition of air conditioning products are facilitated. The invention further discloses a control method and device for the composite air conditioning system and a computer readable storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, for example, to a composite air conditioning system and a control method, device, and computer-readable storage medium for the composite air conditioning system. Background Art

[0002] At present, with the improvement of people's living standards, air conditioning systems are more and more widely used in daily life. Conventional air conditioning systems mainly include compressors, four-way valves, indoor heat exchangers and outdoor heat exchangers, which can realize heating operation in winter and cooling operation in summer.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] Existing air conditioning systems cannot distinguish their specific application scenarios, and different scenarios correspond to different work requirements. For example, in winter, the personnel flow area of ​​the shopping mall needs heating, while the data center area needs cooling. If two completely independent air conditioning systems are used, the overall energy consumption of the system will be large, the energy-saving effect will be poor, and it will be unfavorable for the promotion and market competition of air conditioning products.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a composite air-conditioning system and a control method, device, and computer-readable storage medium for the composite air-conditioning system, which can reduce the overall energy consumption of the composite air-conditioning system to achieve better energy-saving effects, and are beneficial to the promotion and market competition of air-conditioning products.

[0008] In some embodiments, the composite air-conditioning system includes: a residential air-conditioning system, including a first compressor, a first four-way valve, a residential heat exchanger, a first control valve, a first outdoor heat exchanger, a second control valve and a first machine room heat exchanger; the first control valve and the first outdoor heat exchanger constitute a first heat exchange branch, the second control valve and the first machine room heat exchanger constitute a second heat exchange branch, and the second heat exchange branch and the first heat exchange branch are connected in parallel; a machine room air-conditioning system, including a second compressor, a second outdoor heat exchanger, a fifth control valve and a second machine room heat exchanger; the second machine room heat exchanger and the first machine room heat exchanger are arranged side by side.

[0009] In some embodiments, the control method includes: obtaining a residential operation mode of a residential air conditioning system; obtaining computer room load information in a computer room; and controlling the operation of the residential air conditioning system and the computer room air conditioning system according to the residential operation mode and the computer room load information.

[0010] In some embodiments, the control device includes: a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned control method for the composite air-conditioning system when running the program instructions.

[0011] In some embodiments, the computer-readable storage medium stores program instructions, and when the program instructions are executed, the computer executes the above-mentioned control method for the composite air-conditioning system.

[0012] The composite air conditioning system and the control method, device, and computer-readable storage medium for the composite air conditioning system provided by the embodiments of the present disclosure can achieve the following technical effects:

[0013] In the disclosed embodiment, a composite air conditioning system in which a housing air conditioning system and a computer room air conditioning system cooperate to operate is adopted, so that the system operation can be optimized based on the housing work requirements and the computer room work requirements. Among them, the computer room air conditioning system realizes heat exchange inside the computer room through the second computer room heat exchanger, thereby meeting the actual needs inside the computer room. The housing air conditioning system realizes heat exchange inside the housing through the housing heat exchanger to meet the actual needs inside the housing, and can exchange heat with the inside of the computer room through the first computer room heat exchanger to assist the inside of the computer room to achieve the corresponding work requirements, thereby improving the energy utilization rate, which is conducive to reducing the overall energy consumption of the composite air conditioning system, so as to achieve a better energy-saving effect, and is conducive to the promotion and market competition of air conditioning products.

[0014] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0016] Figure 1 is a structural schematic diagram of a composite air conditioning system provided by an embodiment of the present disclosure;

[0017] Figure 2 is a structural schematic diagram of another composite air-conditioning system provided by an embodiment of the present disclosure;

[0018] Figure 3 is a schematic diagram of a control method for a composite air conditioning system provided by an embodiment of the present disclosure;

[0019] Figure 4 is a schematic diagram of another control method for a composite air conditioning system provided by an embodiment of the present disclosure;

[0020] Figure 5 is a schematic diagram of another control method for a composite air conditioning system provided by an embodiment of the present disclosure;

[0021] Figure 6 Schematic diagram of a control device for a composite air-conditioning system provided in an embodiment of the present disclosure.

[0022] Reference numerals:

[0023] 100: residential air conditioning system; 101: first compressor; 102: first four-way valve; 103: first outdoor heat exchanger; 104: first machine room heat exchanger; 105: residential heat exchanger; 106: first control valve; 107: second control valve; 108: third control valve; 109: fourth control valve; 110: indoor fan of residential room; 200: machine room air conditioning system; 201: second compressor; 202: second four-way valve; 203: second outdoor heat exchanger; 204: second machine room heat exchanger; 205: fifth control valve; 206: indoor fan of machine room; 300: control device for composite air conditioning system; 301: processor; 302: memory; 303: communication interface; 304: bus. DETAILED DESCRIPTION

[0024] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0025] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0026] Unless otherwise stated, the term "plurality" means two or more.

[0027] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0028] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0029] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0030] Combination Figure 1-2 As shown, the embodiment of the present disclosure provides a composite air conditioning system, including: a housing air conditioning system 100 and a computer room air conditioning system 200. The housing air conditioning system 100 includes a first compressor 101, a first four-way valve 102, a housing heat exchanger 105, a first control valve 106, a first outdoor heat exchanger 103, a second control valve 107 and a first computer room heat exchanger 104; the first control valve 106 and the first outdoor heat exchanger 103 form a first heat exchange branch, the second control valve 107 and the first computer room heat exchanger 104 form a second heat exchange branch, and the second heat exchange branch and the first heat exchange branch are connected in parallel. The computer room air conditioning system 200 includes a second compressor 201, a second outdoor heat exchanger 203, a fifth control valve 205 and a second computer room heat exchanger 204; the second computer room heat exchanger 204 and the first computer room heat exchanger 104 are arranged side by side.

[0031] By using the composite air conditioning system provided by the embodiment of the present disclosure, the housing air conditioning system 100 and the computer room air conditioning system 200 cooperate to operate, so that the system operation can be optimized based on the housing work requirements and the computer room work requirements. Among them, the computer room air conditioning system 100 realizes heat exchange inside the computer room through the second computer room heat exchanger 204, so as to meet the actual needs inside the computer room. The housing air conditioning system 100 realizes heat exchange inside the housing through the housing heat exchanger 105 to meet the actual needs inside the housing, and can exchange heat with the inside of the computer room through the first computer room heat exchanger 104 to assist the inside of the computer room to achieve the corresponding work requirements, thereby improving the energy utilization rate, which is conducive to reducing the overall energy consumption of the composite air conditioning system, so as to achieve a better energy-saving effect, and is conducive to the promotion and market competition of air conditioning products.

[0032] Optionally, the housing air conditioning system 100 further includes: a third control valve 108 . The third control valve 108 is disposed in the second heat exchange branch connecting the first machine room heat exchanger 104 and the first four-way valve 102 .

[0033] In this way, when the residential air conditioning system 100 operates in cooling mode, the second heat exchange branch can be cut off by closing the third control valve 108, so that all the high-temperature refrigerant discharged from the first compressor 101 flows through the first outdoor heat exchanger 103, thereby preventing the first machine room heat exchanger 104 from working as a condenser and affecting the cooling demand inside the machine room.

[0034] Optionally, the housing air conditioning system 100 further includes a fourth control valve 109 . The fourth control valve 109 has a first end connected to the refrigerant pipeline between the first control valve 106 and the first outdoor heat exchanger 103 , and a second end connected to the refrigerant pipeline between the first machine room heat exchanger 104 and the third control valve 108 .

[0035] In this way, when the residential air conditioning system 100 operates in cooling mode, the refrigerant diversion can be achieved by opening the fourth control valve 109, so that part of the refrigerant flowing out of the first outdoor heat exchanger 103 flows to the first machine room heat exchanger 104. The first machine room heat exchanger 104 works as an evaporator, thereby assisting the cooling demand inside the machine room.

[0036] Optionally, the computer room air conditioning system 200 further includes: a second four-way valve 202. The second four-way valve 202 has four interfaces, which are respectively connected to the exhaust port of the second compressor 201, the air intake port of the second compressor 202, the second outdoor heat exchanger 203 and the second computer room heat exchanger 204.

[0037] In this way, the computer room air conditioning system 200 can switch the operating mode through the second four-way valve 202. It can operate in cooling mode under most working conditions to assist the heat dissipation of the equipment inside the computer room. In addition, it can also operate in heating mode under extremely low temperature conditions to meet the heating demand inside the computer room.

[0038] Optionally, the composite air conditioning system further includes: a fan 110 in the house, and / or a fan 206 in the machine room. The fan 110 in the house is arranged relative to the house heat exchanger 105. The fan 206 in the machine room is arranged relative to the second machine room heat exchanger 204.

[0039] In this way, the embodiment of the present disclosure can enhance the heat exchange effect of the housing heat exchanger 105 through the indoor fan 110, which is beneficial to ensure the working efficiency of the housing air conditioning system 100, so as to better meet the actual needs inside the housing. At the same time, the embodiment of the present disclosure can also enhance the heat exchange effect of the first machine room heat exchanger 104 and the second machine room heat exchanger 204 through the indoor fan 206, which is beneficial to ensure the working efficiency of the machine room air conditioning system 200, so as to better meet the actual needs inside the machine room.

[0040] Optionally, the composite air conditioning system further includes: a control device 300 for the composite air conditioning system. The control device 300 for the composite air conditioning system is electrically connected to the housing air conditioning system 100 and the computer room air conditioning system 200, respectively. In this way, the embodiment of the present disclosure can execute a corresponding control method through the control device 300 to reduce the overall energy consumption of the composite air conditioning system, thereby achieving a better energy-saving effect, which is beneficial to the promotion and market competition of air conditioning products.

[0041] Based on the above composite air conditioning system, combined with Figure 3 As shown, the embodiment of the present disclosure provides a control method for a composite air conditioning system, comprising:

[0042] S101, a control device obtains a housing operation mode of a housing air conditioning system.

[0043] S102, the control device obtains the computer room load information in the computer room.

[0044] S103, the control device controls the operation of the residential air conditioning system and the computer room air conditioning system according to the residential operation mode and the computer room load information.

[0045] By adopting the control method for the composite air-conditioning system provided by the embodiment of the present disclosure, the housing operation mode of the housing air-conditioning system can be obtained to give priority to the actual demand inside the housing. Then, the machine room load information in the machine room is obtained to determine the required cooling capacity inside the machine room. Based on this, the embodiment of the present disclosure can reasonably utilize the cooling capacity of the housing air-conditioning system by controlling the precise operation of the housing air-conditioning system and the machine room air-conditioning system, and assist the machine room to achieve the corresponding cooling demand through the first machine room heat exchanger, thereby improving the energy utilization rate, which is conducive to reducing the overall energy consumption of the composite air-conditioning system, so as to achieve a better energy-saving effect, and is conducive to the promotion and market competition of air-conditioning products.

[0046] Optionally, the control device obtains the housing operation mode of the housing air conditioning system, including: the control device receives a user power-on instruction; the control device determines the housing operation mode of the housing air conditioning system according to the user power-on instruction. In this way, the embodiment of the present disclosure can define the housing operation mode of the housing air conditioning system based on the actual needs of the user, which is conducive to accurately ensuring the actual comfort experience of the user in the house.

[0047] Optionally, the control device obtains the housing operation mode of the housing air conditioning system, including: the control device obtains the current operation season; the control device determines the housing operation mode of the housing air conditioning system according to the current operation season. In this way, the embodiment of the present disclosure can recommend the housing operation mode of the housing air conditioning system based on the current operation season, which is conducive to ensuring the actual comfort experience of the user in the house and improving the convenience of user operation.

[0048] Optionally, the control device determines the housing operation mode of the housing air conditioning system according to the current operation season, including: when the current operation season is summer or spring, determining that the housing operation mode of the housing air conditioning system is a cooling mode; or, when the current operation season is winter or autumn, determining that the housing operation mode of the housing air conditioning system is a heating mode. In this way, the embodiment of the present disclosure can recommend that the housing air conditioning system operate in a cooling mode in spring and summer to improve the high temperature environment conditions in the house at this time, which is conducive to ensuring the actual comfort experience of the users in the house. In autumn and winter, it is recommended that the housing air conditioning system operate in a heating mode to improve the low temperature environment conditions in the house at this time, which is conducive to ensuring the actual comfort experience of the users in the house.

[0049] Optionally, the control device obtains the computer room load information in the computer room, including: the control device obtains the current ambient temperature in the computer room; the control device determines the computer room load information in the computer room according to the current ambient temperature in the computer room.

[0050] In this way, the embodiment of the present disclosure can obtain the current ambient temperature in the computer room, thereby determining the actual heat level inside the computer room, and then determining the actual load condition of the computer room at this time, which is beneficial for controlling the precise operation of the residential air-conditioning system and the computer room air-conditioning system to reduce the overall energy consumption of the composite air-conditioning system.

[0051] Optionally, the control device determines the machine room load information in the machine room according to the current ambient temperature in the machine room, including: the control device calculates the difference between the current ambient temperature in the machine room and the preset machine room temperature; when the difference between the current ambient temperature in the machine room and the preset machine room temperature is greater than the first machine room temperature difference, the machine room load information in the machine room is determined to indicate a high load; or, when the difference between the current ambient temperature in the machine room and the preset machine room temperature is less than or equal to the first machine room temperature difference and greater than or equal to the second machine room temperature difference, the machine room load information in the machine room is determined to indicate a medium load; or, when the difference between the current ambient temperature in the machine room and the preset machine room temperature is less than or equal to the second machine room temperature difference, the machine room load information in the machine room is determined to indicate a low load. Wherein, the first machine room temperature difference is greater than the second machine room temperature difference. In this way, the embodiment of the present disclosure can determine the required cooling capacity inside the machine room according to the difference between the current ambient temperature in the machine room and the preset machine room temperature, and thus can more accurately determine the actual load status of the machine room at this time.

[0052] When the difference between the current ambient temperature in the computer room and the preset computer room temperature is greater than the first computer room temperature difference, the current ambient temperature in the computer room is much higher than the preset computer room temperature, indicating that a large amount of cooling capacity is required inside the computer room. At this time, the computer room load information can be determined as a high load, which is used to guide the composite air-conditioning system to provide more cooling capacity, which is conducive to assisting rapid cooling inside the computer room.

[0053] When the difference between the current ambient temperature in the computer room and the preset computer room temperature is less than or equal to the first computer room temperature difference and greater than or equal to the second computer room temperature difference, the current ambient temperature in the computer room is slightly higher than the preset computer room temperature, indicating that the cooling capacity required inside the computer room is moderate. At this time, the computer room load information can be determined as medium load, which is used to guide the composite air-conditioning system to provide appropriate cooling capacity, which is conducive to assisting normal cooling inside the computer room.

[0054] When the difference between the current ambient temperature in the computer room and the preset computer room temperature is less than or equal to the second computer room temperature difference, the current ambient temperature in the computer room is close to the preset computer room temperature, indicating that the cooling capacity required inside the computer room is very small. At this time, the computer room load information can be determined as low load, which is used to guide the compound air-conditioning system to reduce or stop producing cooling capacity, which is beneficial to reducing the working energy consumption of the compound air-conditioning system.

[0055] Optionally, the control device controls the operation of the residential air-conditioning system and the computer room air-conditioning system according to the residential operation mode and the computer room load information, including: when the residential operation mode is the heating mode and the computer room load information indicates a high load, the control device controls the first compressor and the second compressor to start, and controls the second control valve, the third control valve and the fifth control valve to open; or, when the residential operation mode is the heating mode and the computer room load information indicates a medium load, the control device controls the first compressor to start, and controls the second control valve and the third control valve to open; or, when the residential operation mode is the heating mode and the computer room load information indicates a low load, the control device controls the first compressor to start, and controls the first control valve to open.

[0056] In this way, when the housing operation mode is the heating mode and the load information of the computer room indicates a high load, the cooling capacity required inside the computer room is relatively large, and when the housing air conditioning system is in heating operation, its evaporator can generate excess cooling capacity, which can be all distributed to the interior of the house. Therefore, the embodiment of the present disclosure can control the first compressor and the second compressor to start, and control the second control valve, the third control valve and the fifth control valve to open, and the remaining control valves are in a closed state. At this time, the housing air conditioning system and the computer room air conditioning system are running at the same time, on the one hand, to meet the heating demand inside the house to ensure the user's comfortable experience, and on the other hand, to provide sufficient cooling capacity to ensure rapid cooling inside the computer room. And the first computer room heat exchanger works as the evaporator of the housing air conditioning system, so that all the cooling capacity produced by the housing air conditioning system can be effectively used inside the computer room, thereby improving energy utilization. It is conducive to reducing the overall energy consumption of the composite air conditioning system to achieve a better energy-saving effect, and is conducive to the promotion and market competition of air conditioning products.

[0057] When the housing operation mode is the heating mode and the machine room load information indicates a medium load, the cooling capacity required inside the machine room is moderate, and when the housing air conditioning system is in heating operation, its evaporator can generate excess cooling capacity, which can be all distributed to the inside of the house. Therefore, the embodiment of the present disclosure can control the first compressor to start, and control the second control valve and the third control valve to open, while the remaining compressors and control valves are in a closed state. At this time, the housing air conditioning system is running, and the machine room air conditioning system is not running. On the one hand, it meets the heating demand inside the house to ensure the user's comfortable experience, and on the other hand, the housing air conditioning system provides all the cooling capacity required for normal cooling inside the machine room. The first machine room heat exchanger works as the evaporator of the housing air conditioning system, so that all the cooling capacity produced by the housing air conditioning system can be effectively used inside the machine room, thereby improving energy utilization. It is beneficial to reduce the overall energy consumption of the composite air conditioning system to achieve a better energy-saving effect, and is beneficial to the promotion and market competition of air conditioning products.

[0058] When the housing operation mode is heating mode and the machine room load information indicates low load, the cooling capacity required inside the machine room is very small, and when the housing air conditioning system is in heating operation, its evaporator will produce excess cooling capacity, but there is no need to distribute it to the interior of the house. Therefore, the embodiment of the present disclosure can control the first compressor to start, and control the first control valve to open, while the remaining compressors and control valves are in a closed state. At this time, the housing air conditioning system is running, and the machine room air conditioning system is not running. On the one hand, it meets the heating demand inside the house to ensure the user's comfortable experience, and on the other hand, it saves the operating energy consumption of the machine room air conditioning system to achieve better energy-saving effects. In addition, the first outdoor heat exchanger works as the evaporator of the housing air conditioning system, thereby preventing the cooling capacity produced by the housing air conditioning system from entering the machine room through the first machine room heat exchanger, causing excessive cooling inside the machine room, which is conducive to maintaining a stable environment inside the machine room.

[0059] Optionally, the control device controls the operation of the residential air-conditioning system and the computer room air-conditioning system according to the residential operation mode and the computer room load information, including: when the residential operation mode is the cooling mode and the computer room load information indicates a high load, the control device controls the first compressor and the second compressor to start, and controls the first control valve, the second control valve, the fourth control valve and the fifth control valve to open; or, when the residential operation mode is the cooling mode and the computer room load information indicates a medium load, the control device controls the first compressor and the second compressor to start, and controls the first control valve and the fifth control valve to open; or, when the residential operation mode is the cooling mode and the computer room load information indicates a low load, the control device controls the first compressor to start, and controls the first control valve to open.

[0060] In this way, when the housing operation mode is the cooling mode and the load information of the computer room indicates a high load, the cooling capacity required inside the computer room is relatively large, and a certain amount of cooling capacity is also required inside the housing, and the cooling capacity produced by the housing air conditioning system cannot be fully distributed inside the housing. Therefore, the embodiment of the present disclosure can control the first compressor and the second compressor to start, and control the first control valve, the second control valve, the fourth control valve and the fifth control valve to open, and the remaining control valves are in a closed state. At this time, the housing air conditioning system and the computer room air conditioning system are running at the same time, on the one hand, the cooling demand inside the housing is met to ensure the user's comfortable experience, and on the other hand, sufficient cooling capacity is provided to ensure rapid cooling inside the computer room. And part of the refrigerant flowing out of the first outdoor heat exchanger flows to the first computer room heat exchanger, so that it works as the evaporator of the housing air conditioning system, so that part of the cooling capacity produced by the housing air conditioning system can be effectively used inside the computer room, thereby improving energy utilization. It is conducive to reducing the overall energy consumption of the composite air conditioning system to achieve a better energy-saving effect, and is conducive to the promotion and market competition of air conditioning products.

[0061] When the housing operation mode is cooling mode and the machine room load information indicates medium load, the cooling capacity required inside the machine room is moderate, and a certain cooling capacity is also required inside the house. The cooling capacity produced by the housing air-conditioning system cannot be fully distributed inside the house. Therefore, the embodiment of the present disclosure can control the start-up of the first compressor and the second compressor, and control the first control valve and the fifth control valve to open, while the other control valves are in a closed state. At this time, the housing air-conditioning system and the machine room air-conditioning system operate independently. The housing air-conditioning system can meet the cooling demand inside the house to ensure the user's comfortable experience, and the machine room air-conditioning system can meet the cooling demand inside the machine room to assist the equipment in quickly dissipating heat. All the refrigerant flowing out of the first outdoor heat exchanger flows to the housing heat exchanger, so that the cooling effect inside the house can be prioritized, which is conducive to better ensuring the user's comfortable experience.

[0062] When the housing operation mode is the heating mode and the machine room load information indicates a low load, the cooling capacity required inside the machine room is very small, and a certain cooling capacity is required inside the housing, so the cooling capacity produced by the housing air conditioning system should not be distributed to the inside of the housing. Therefore, the embodiment of the present disclosure can control the start of the first compressor and control the first control valve to open, while the other compressors and control valves are in a closed state. At this time, the housing air conditioning system is running, and the machine room air conditioning system is not running. On the one hand, it meets the cooling demand inside the house to ensure the user's comfortable experience, and on the other hand, it saves the operating energy consumption of the machine room air conditioning system to achieve a better energy-saving effect. In addition, all the refrigerant flowing out of the first outdoor heat exchanger flows to the housing heat exchanger, thereby preventing the cooling capacity produced by the housing air conditioning system from entering the machine room through the first machine room heat exchanger, causing excessive cooling inside the machine room, which is conducive to maintaining a stable environment inside the machine room.

[0063] Optionally, when the housing operation mode is the cooling mode and the machine room load information indicates a high load, the control device controls the first compressor and the second compressor to start, and controls the first control valve, the second control valve, the fourth control valve and the fifth control valve to open, including: when the housing operation mode is the cooling mode and the machine room load information indicates a high load, the control device obtains the housing load information in the housing; when the housing load information indicates a medium load, the control device controls the first compressor and the second compressor to start, and controls the first control valve, the second control valve, the fourth control valve and the fifth control valve to open.

[0064] In this way, when the housing operation mode is the cooling mode and the machine room load information indicates a high load, the cooling capacity required inside the machine room is relatively large, and a certain cooling capacity is also required inside the house, and the cooling capacity produced by the housing air conditioning system cannot be fully allocated to the inside of the house. At this time, the embodiment of the present disclosure can further obtain the housing load information in the house to determine the actual cooling capacity required inside the house. If the housing load information indicates a medium load, it indicates that the cooling capacity required inside the house is moderate. At this time, the first compressor and the second compressor can be controlled to start, and the first control valve, the second control valve, the fourth control valve and the fifth control valve can be controlled to open, and the remaining control valves are in a closed state. At this time, the housing air conditioning system and the machine room air conditioning system are running at the same time, on the one hand, the cooling demand inside the house is met to ensure the user's comfortable experience, and on the other hand, sufficient cooling capacity is provided to ensure rapid cooling inside the machine room. And part of the refrigerant flowing out of the first outdoor heat exchanger flows to the first machine room heat exchanger, so that it works as the evaporator of the housing air conditioning system, so that part of the cooling capacity produced by the housing air conditioning system can be effectively used inside the machine room, thereby improving energy utilization. It is conducive to reducing the overall energy consumption of the composite air conditioning system to achieve a better energy-saving effect, and is conducive to the promotion and market competition of air conditioning products.

[0065] Based on the above composite air conditioning system, combined with Figure 4 As shown, the embodiment of the present disclosure provides another control method for a composite air conditioning system, comprising:

[0066] S201, the control device obtains the housing operation mode of the housing air conditioning system.

[0067] S202: The control device obtains the load information of the computer room.

[0068] S203, when the housing operation mode is the heating mode and the machine room load information indicates a high load, the control device controls the first compressor and the second compressor to start, and controls the second control valve, the third control valve and the fifth control valve to open.

[0069] S204, the control device controls the rotation speed of the fan in the computer room according to the computer room load information in the computer room.

[0070] Using the control method for the composite air-conditioning system provided by the embodiment of the present disclosure, when the housing operation mode is the heating mode and the load information of the computer room indicates a high load, the cooling capacity required inside the computer room is relatively large, and when the housing air-conditioning system is in heating operation, its evaporator can generate excess cooling capacity, which can be all distributed to the inside of the housing. Therefore, the embodiment of the present disclosure can control the first compressor and the second compressor to start, and control the second control valve, the third control valve and the fifth control valve to open, and the remaining control valves are in a closed state. At this time, the housing air-conditioning system and the computer room air-conditioning system are running at the same time, on the one hand, the heating demand inside the housing is met to ensure the user's comfortable experience, and on the other hand, sufficient cooling capacity is provided to ensure rapid cooling inside the computer room. And the first computer room heat exchanger works as the evaporator of the housing air-conditioning system, so that all the cooling capacity produced by the housing air-conditioning system can be effectively used inside the computer room, thereby improving energy utilization. It is conducive to reducing the overall energy consumption of the composite air-conditioning system to achieve a better energy-saving effect, and is conducive to the promotion and market competition of air-conditioning products.

[0071] In addition, the disclosed embodiment can also continuously collect new computer room load information in the computer room, and then reasonably adjust the speed of the fan in the computer room accordingly, which is conducive to appropriately improving the heat exchange effect of the first computer room heat exchanger and the second computer room heat exchanger to better meet the cooling needs inside the computer room.

[0072] Optionally, the control device controls the speed of the fan in the machine room according to the machine room load information in the machine room, including: when the machine room load information indicates a high load, the control device controls the fan in the machine room to run at a first speed; or when the machine room load information indicates a medium load, the control device controls the fan in the machine room to run at a second speed; or when the machine room load information indicates a low load, the control device controls the fan in the machine room to run at a third speed. The first speed is greater than the second speed, and the second speed is greater than the third speed.

[0073] In this way, when the new computer room load information indicates a high load, it indicates that the cooling capacity required inside the computer room is still relatively large. At this time, the fan in the computer room can be controlled to operate at a relatively high first speed, thereby maximizing the heat exchange effect of the first computer room heat exchanger and the second computer room heat exchanger to better meet the cooling demand inside the computer room.

[0074] When the new computer room load information indicates a medium load, it indicates that the cooling capacity required inside the computer room is relatively moderate. At this time, the fan in the computer room can be controlled to run at a relatively appropriate second speed. On the one hand, the heat exchange effect of the first computer room heat exchanger and the second computer room heat exchanger can be guaranteed to better meet the cooling demand inside the computer room. On the other hand, the working energy consumption of the composite air-conditioning system can be reduced to achieve a better energy-saving effect, which is conducive to the promotion and market competition of air-conditioning products.

[0075] When the new computer room load information indicates low load, it means that the cooling capacity required inside the computer room is very small. At this time, the fan in the computer room can be controlled to run at a relatively low third speed, thereby reducing the working energy consumption of the composite air-conditioning system as much as possible to achieve better energy-saving effects, which is conducive to the promotion of air-conditioning products and market competition.

[0076] Optionally, after the control device controls the start-up of the first compressor and the second compressor, and controls the opening of the second control valve, the third control valve and the fifth control valve, it also includes: the control device obtains the suction superheat of the residential air-conditioning system; the control device adjusts the opening of the second control valve according to the suction superheat of the residential air-conditioning system.

[0077] In this way, during the heating operation of the residential air conditioning system, the embodiment of the present disclosure can continuously obtain the suction air superheat of the residential air conditioning system to determine whether it is within an appropriate range, and can adjust the opening of the second control valve accordingly to ensure that the residential air conditioning system always operates reliably.

[0078] Optionally, the control device adjusts the opening of the second control valve according to the suction superheat of the residential air conditioning system, including: when the suction superheat of the residential air conditioning system is greater than the upper limit value of the preset superheat range, increasing the opening of the second control valve; or when the suction superheat of the residential air conditioning system is less than the lower limit value of the preset superheat range, reducing the opening of the second control valve.

[0079] In this way, when the suction superheat of the residential air conditioning system is greater than the upper limit of the preset superheat range, it indicates that the refrigerant has evaporated prematurely in the first machine room heat exchanger, which is likely to increase the exhaust temperature of the first compressor and reduce the heating efficiency of the residential air conditioning system. Therefore, the embodiment of the present disclosure can appropriately increase the opening of the second control valve to gradually reduce the suction superheat of the residential air conditioning system to the preset superheat range, which is conducive to ensuring the efficient operation of the residential air conditioning system.

[0080] When the suction superheat of the residential air conditioning system is less than the lower limit of the preset superheat range, it indicates that the refrigerant has not fully evaporated in the first machine room heat exchanger, which may cause some liquid refrigerant to enter the first compressor, causing liquid hammer and thus damaging the first compressor. Therefore, the embodiment of the present disclosure can appropriately reduce the opening of the second control valve to gradually increase the suction superheat of the residential air conditioning system to the preset superheat range, which is conducive to ensuring the stable operation of the residential air conditioning system.

[0081] Based on the above composite air conditioning system, combined with Figure 5 As shown, the embodiment of the present disclosure provides another control method for a composite air conditioning system, comprising:

[0082] S301, the control device obtains the housing operation mode of the housing air conditioning system.

[0083] S302, the control device obtains the computer room load information in the computer room.

[0084] S303: When the housing operation mode is the cooling mode and the machine room load information indicates a high load, the control device obtains housing load information in the housing.

[0085] S304, when the housing load information indicates a low load, the control device controls the first compressor and the second compressor to start, and controls the second control valve, the fourth control valve and the fifth control valve to open. Or,

[0086] S305, when the housing load information indicates a medium load, the control device controls the first compressor and the second compressor to start, and controls the first control valve, the second control valve, the fourth control valve and the fifth control valve to open. Or,

[0087] S306, when the housing load information indicates a high load, the control device controls the first compressor and the second compressor to start, and controls the first control valve and the fifth control valve to open.

[0088] By using the control method for the composite air conditioning system provided by the embodiment of the present disclosure, when the housing operation mode is the cooling mode and the load information of the computer room indicates a high load, the cooling capacity required inside the computer room is relatively large, and the housing also requires a certain amount of cooling capacity, and the cooling capacity produced by the housing air conditioning system cannot be fully distributed inside the housing. At this time, the embodiment of the present disclosure can further obtain the housing load information in the housing to determine the actual cooling capacity required inside the housing, which is conducive to controlling the precise operation of the housing air conditioning system and the computer room air conditioning system, so as to reasonably reduce the overall energy consumption of the composite air conditioning system, achieve a better energy-saving effect, and facilitate the promotion of air conditioning products and market competition.

[0089] Specifically, if the housing load information indicates a low load, it means that the cooling capacity required inside the housing is very small, while the cooling capacity required inside the computer room is relatively large. Therefore, the cooling capacity produced by the housing air-conditioning system should be allocated to the inside of the computer room first. Therefore, the embodiment of the present disclosure can control the first compressor and the second compressor to start, and control the second control valve, the fourth control valve and the fifth control valve to open, while the remaining control valves are in a closed state. At this time, the housing air-conditioning system and the computer room air-conditioning system are running at the same time, giving priority to providing sufficient cooling capacity to ensure rapid cooling inside the computer room. By making all the refrigerant flowing out of the first outdoor heat exchanger flow to the first computer room heat exchanger first, so that it works as the evaporator of the housing air-conditioning system, most of the cooling capacity produced by the housing air-conditioning system is effectively used inside the computer room, thereby improving energy utilization. It is beneficial to reduce the overall energy consumption of the composite air-conditioning system to achieve a better energy-saving effect, and is beneficial to the promotion and market competition of air-conditioning products.

[0090] If the housing load information indicates a medium load, it indicates that the cooling capacity required inside the housing is moderate. At this time, the cooling capacity required inside the computer room is relatively large, so the cooling capacity produced by the housing air conditioning system can be coordinated and distributed to the inside of the housing and the computer room as needed. At this time, the first compressor and the second compressor can be controlled to start, and the first control valve, the second control valve, the fourth control valve and the fifth control valve can be controlled to open, and the remaining control valves are in a closed state. At this time, the housing air conditioning system and the computer room air conditioning system are running at the same time, on the one hand, to meet the cooling demand inside the housing to ensure the user's comfortable experience, and on the other hand, to provide sufficient cooling capacity to ensure rapid cooling inside the computer room. In addition, part of the refrigerant flowing out of the first outdoor heat exchanger flows directly to the housing heat exchanger to ensure the cooling effect inside the housing; the other part of the refrigerant flows to the first computer room heat exchanger, so that it works as the evaporator of the housing air conditioning system, so that part of the cooling capacity produced by the housing air conditioning system can be effectively used inside the computer room, thereby improving energy utilization. It is conducive to reducing the overall energy consumption of the composite air conditioning system to achieve a better energy-saving effect, and is conducive to the promotion and market competition of air conditioning products.

[0091] If the housing load information indicates a high load, it means that the cooling capacity required inside the house is large. Although the cooling capacity required inside the computer room is large at this time, the cooling capacity produced by the housing air-conditioning system should be allocated to the interior of the house first. Therefore, the embodiment of the present disclosure can control the start-up of the first compressor and the second compressor, and control the first control valve and the fifth control valve to open, while the other control valves are in a closed state. At this time, the housing air-conditioning system and the computer room air-conditioning system operate independently. The housing air-conditioning system can meet the cooling demand inside the house to ensure the user's comfortable experience, and the computer room air-conditioning system can meet the cooling demand inside the computer room to assist the equipment in quickly dissipating heat. All the refrigerant flowing out of the first outdoor heat exchanger flows to the housing heat exchanger, so that the cooling effect inside the house can be prioritized, which is conducive to better ensuring the user's comfortable experience.

[0092] Optionally, the control device obtains housing load information in the house, including: the control device obtains the current ambient temperature in the house; the control device determines the housing load information in the house according to the current ambient temperature in the house.

[0093] In this way, the embodiment of the present disclosure can obtain the current ambient temperature in the house, thereby determining the actual heat level inside the house, and then determining the actual load condition of the house at this time, which is beneficial for controlling the precise operation of the house air-conditioning system and the computer room air-conditioning system to reduce the overall energy consumption of the composite air-conditioning system.

[0094] Optionally, the control device determines the housing load information in the house according to the current ambient temperature in the house, including: the control device calculates the difference between the current ambient temperature in the house and the preset housing temperature; when the difference between the current ambient temperature in the house and the preset housing temperature is greater than the first housing temperature difference, it is determined that the housing load information in the house indicates a high load; or, when the difference between the current ambient temperature in the house and the preset housing temperature is less than or equal to the first housing temperature difference and greater than or equal to the second housing temperature difference, it is determined that the housing load information in the house indicates a medium load; or, when the difference between the current ambient temperature in the house and the preset housing temperature is less than or equal to the second housing temperature difference, it is determined that the housing load information in the house indicates a low load. Wherein, the first housing temperature difference is greater than the second housing temperature difference. In this way, the embodiment of the present disclosure can determine the required cooling capacity inside the house according to the difference between the current ambient temperature in the house and the preset housing temperature, and thus can more accurately determine the actual load status of the house at this time.

[0095] When the difference between the current ambient temperature in the house and the preset house temperature is greater than the first house temperature difference, the current ambient temperature in the house is much higher than the preset house temperature, indicating that a large amount of cooling capacity is required inside the house. At this time, the house load information can be determined as a high load, which is used to guide the compound air-conditioning system to provide more cooling capacity, which is conducive to assisting rapid cooling inside the house.

[0096] When the difference between the current ambient temperature in the house and the preset house temperature is less than or equal to the first house temperature difference and greater than or equal to the second house temperature difference, the current ambient temperature in the house is slightly higher than the preset house temperature, indicating that the cooling capacity required inside the house is moderate. At this time, the house load information can be determined as medium load, which is used to guide the compound air-conditioning system to provide appropriate cooling capacity, which is conducive to assisting normal cooling inside the house.

[0097] When the difference between the current ambient temperature in the house and the preset house temperature is less than or equal to the second house temperature difference, the current ambient temperature in the house is close to the preset house temperature, indicating that the cooling capacity required inside the house is very small. At this time, the house load information can be determined as low load, which is used to guide the compound air-conditioning system to reduce or stop producing cooling capacity, which is beneficial to reducing the working energy consumption of the compound air-conditioning system.

[0098] Combination Figure 6As shown, the embodiment of the present disclosure provides a control device 300 for a composite air-conditioning system, including a processor 301 and a memory 302. Optionally, the control device 300 may also include a communication interface 303 and a bus 304. The processor 301, the communication interface 303, and the memory 302 may communicate with each other through the bus 304. The communication interface 303 may be used for information transmission. The processor 301 may call the logic instructions in the memory 302 to execute the control method for the composite air-conditioning system of the above embodiment.

[0099] In addition, the logic instructions in the memory 302 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0100] The memory 302 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 301 executes the function application and data processing by running the program instructions / modules stored in the memory 302, that is, the control method for the composite air conditioning system in the above embodiment is implemented.

[0101] The memory 302 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 302 may include a high-speed random access memory and may also include a non-volatile memory.

[0102] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the control method for the composite air-conditioning system.

[0103] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes.

[0104] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0105] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0106] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple 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 each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0107] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A composite air conditioning system, characterized in that: include: A residential air conditioning system comprises a first compressor, a first four-way valve, a residential heat exchanger, a first control valve, a first outdoor heat exchanger, a second control valve and a first machine room heat exchanger; the first control valve and the first outdoor heat exchanger form a first heat exchange branch, the second control valve and the first machine room heat exchanger form a second heat exchange branch, and the second heat exchange branch and the first heat exchange branch are connected in parallel; The computer room air conditioning system comprises a second compressor, a second outdoor heat exchanger, a fifth control valve and a second computer room heat exchanger; the second computer room heat exchanger and the first computer room heat exchanger are arranged side by side.

2. The composite air conditioning system according to claim 1, characterized in that: Housing air conditioning systems also include: The third control valve is arranged in the second heat exchange branch connected with the first machine room heat exchanger and the first four-way valve.

3. The composite air conditioning system according to claim 2, characterized in that: Housing air conditioning systems also include: The fourth control valve has a first end connected to the refrigerant pipeline between the first control valve and the first outdoor heat exchanger, and a second end connected to the refrigerant pipeline between the first machine room heat exchanger and the third control valve.

4. The composite air conditioning system according to claim 1, characterized in that: The computer room air conditioning system also includes: The second four-way valve has four interfaces, which are respectively connected to the exhaust port of the second compressor, the suction port of the second compressor, the second outdoor heat exchanger and the second machine room heat exchanger.

5. The composite air conditioning system according to any one of claims 1 to 4, characterized in that: The composite air conditioning system also includes: an in-house fan disposed relative to the house heat exchanger; and / or, The fan in the machine room is arranged relative to the heat exchanger in the second machine room.

6. A control method for a composite air conditioning system, characterized in that: The composite air conditioning system according to any one of claims 1 to 5 comprises: Obtaining the housing operation mode of the housing air conditioning system; Obtain the computer room load information in the computer room; According to the housing operation mode and the computer room load information, the operation of the housing air conditioning system and the computer room air conditioning system is controlled.

7. The control method according to claim 6, characterized in that: According to the housing operation mode and the computer room load information, the operation of the housing air conditioning system and the computer room air conditioning system is controlled, including: When the housing operation mode is the heating mode and the machine room load information indicates a high load, the first compressor and the second compressor are controlled to start, and the second control valve, the third control valve and the fifth control valve are controlled to open; or When the housing operation mode is the heating mode and the machine room load information indicates a medium load, the first compressor is controlled to start, and the second control valve and the third control valve are controlled to open; or, When the housing operation mode is the heating mode and the machine room load information indicates a low load, the first compressor is controlled to start, and the first control valve is controlled to open.

8. The control method according to claim 7, characterized in that: When the housing operation mode is the heating mode and the machine room load information indicates a high load, after controlling the first compressor and the second compressor to start, and controlling the second control valve, the third control valve and the fifth control valve to open, the method further includes: According to the load information of the computer room, the speed of the fan in the computer room is controlled.

9. The control method according to claim 6, characterized in that: According to the housing operation mode and the computer room load information, the operation of the housing air conditioning system and the computer room air conditioning system is controlled, including: When the housing operation mode is the cooling mode and the machine room load information indicates a high load, the first compressor and the second compressor are controlled to start, and the first control valve, the second control valve, the fourth control valve and the fifth control valve are controlled to open; or When the housing operation mode is the cooling mode and the machine room load information indicates a medium load, the first compressor and the second compressor are controlled to start, and the first control valve and the fifth control valve are controlled to open; or When the housing operation mode is the cooling mode and the machine room load information indicates a low load, the first compressor is controlled to start, and the first control valve is controlled to open.

10. The control method according to claim 9, characterized in that: When the housing operation mode is the cooling mode and the machine room load information indicates a high load, the first compressor and the second compressor are controlled to start, and the first control valve, the second control valve, the fourth control valve and the fifth control valve are controlled to open, including: When the housing operation mode is a cooling mode and the computer room load information indicates a high load, obtaining housing load information in the housing; When the housing load information indicates a medium load, the first compressor and the second compressor are controlled to start, and the first control valve, the second control valve, the fourth control valve and the fifth control valve are controlled to open.

11. The control method according to claim 10, characterized in that: When the housing operation mode is the cooling mode and the computer room load information indicates a high load, after obtaining the housing load information in the housing, the method further includes: When the housing load information indicates a low load, the first compressor and the second compressor are controlled to start, and the second control valve, the fourth control valve and the fifth control valve are controlled to open; or When the housing load information indicates a high load, the first compressor and the second compressor are controlled to start, and the first control valve and the fifth control valve are controlled to open.

12. The control method according to any one of claims 6 to 11, characterized in that: Obtain the load information of the computer room, including: Get the current ambient temperature in the equipment room; According to the current ambient temperature in the computer room, the computer room load information in the computer room is determined.

13. A control device for a composite air conditioning system, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for the composite air conditioning system according to any one of claims 6 to 12 when running the program instructions.

14. A computer-readable storage medium storing program instructions, characterized in that: When the program instructions are executed, the computer is used to execute the control method for the composite air-conditioning system according to any one of claims 6 to 12.

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