Switching method, device, equipment and refrigeration system for different cooling modes

Abstract

The present invention relates to a method, device, equipment and refrigeration system for switching different cooling modes, and belongs to the field of cooling module switching technology. The method, device, equipment and refrigeration system set a liquid storage container at the liquid outlet of the refrigeration system, obtain the liquid inlet temperature and the outdoor ambient temperature of the refrigeration system, and calculate the difference between the liquid inlet temperature and the outdoor ambient temperature; according to the difference between the liquid inlet temperature and the outdoor ambient temperature and the set difference threshold, trigger the switching of different cooling modules, so that the coolant produced by different cooling modules is mixed in the liquid storage container, and the liquid outlet temperature when the different cooling modules are switched is changed. Therefore, by adopting the technical solution provided by the present application, when different cooling modules are switched, the coolant produced by the switched cooling module and the final remaining coolant of the cooling module before switching are mixed in the liquid storage container, thereby changing the liquid outlet temperature when switching, reducing the temperature difference between the two cooling liquids, improving the reliability of the user end, and improving the service life.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling module switching, and in particular to a method, device, equipment and refrigeration system for switching between different cooling modes. Background Art

[0002] With the advent of the information age, all kinds of information are in a state of "explosive" growth. The processing and storage of this information requires a large number of servers. In order to ensure the stability and security of information processing, the heat dissipation of the servers in the computer room has become a top priority. At present, the computer room air conditioner provides a strong guarantee for the heat dissipation of the servers in the computer room. Among them, the air conditioner usually uses vapor compression refrigeration. However, since the server is always working, in order to keep it at a suitable temperature, the refrigeration system of the air conditioner needs to be turned on all the time, which consumes a lot of energy.

[0003] In the related technology, in order to reduce energy consumption, liquid cooling source air conditioning products with both conventional cooling (natural heat dissipation) and compressor cooling (steam compression refrigeration) are usually used. By switching the cooling mode, refrigeration is achieved to avoid the compressor being turned on all the time. However, when switching between the two cooling modes, the temperature change of the coolant is too large, which will reduce the reliability of the end-user equipment and shorten its service life.

[0004] Therefore, there is a technical problem in the related art that the temperature of the coolant changes too much when the cooling mode is switched, resulting in reduced reliability at the user end and shortened service life. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a method, device, equipment and refrigeration system for switching different cooling methods to overcome the current problem that the coolant temperature changes too much when the cooling method is switched, resulting in reduced reliability at the user end and shortened service life.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] On the one hand, a method for switching between different cooling modes is applied to a refrigeration system, wherein the refrigeration system includes different cooling modules, wherein each of the cooling modules is independent of each other; a liquid storage container is provided at a liquid outlet of the refrigeration system; the method includes:

[0008] Obtaining the liquid inlet temperature and the outdoor ambient temperature of the refrigeration system, and calculating the difference between the liquid inlet temperature and the outdoor ambient temperature;

[0009] According to the difference between the inlet liquid temperature and the outdoor ambient temperature and the set difference threshold, the switching of different cooling modules is triggered so that the coolants produced by different cooling modules are mixed in the liquid storage container, thereby changing the outlet liquid temperature when different cooling modules are switched.

[0010] Optionally, the cooling module includes: a first cooling module and a second cooling module, and the cooling effect of the second cooling module is better than that of the first cooling module;

[0011] The set difference threshold includes: a first difference threshold; the triggering of switching of different cooling modules according to the difference between the inlet temperature and the outdoor ambient temperature and the set difference threshold includes:

[0012] When the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to the first difference threshold, the first cooling module is triggered to turn on and the second cooling module is turned off.

[0013] Optionally, the set difference threshold further includes: a second difference threshold, the first difference threshold is greater than the second difference threshold; the triggering of switching of different cooling modules according to the difference between the inlet temperature and the outdoor ambient temperature and the set difference threshold also includes:

[0014] When the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to the second difference threshold and less than the first difference threshold, the first cooling module is triggered to turn on and the second cooling module is triggered to turn on.

[0015] Optionally, the outlet of the liquid storage container is provided with a temperature detection component; the method further comprises:

[0016] Based on the temperature detection component, obtaining the liquid outlet temperature of the refrigeration system;

[0017] According to the liquid outlet temperature and the liquid outlet temperature requirement, the refrigeration component of the second cooling module is regulated.

[0018] Optionally, also include:

[0019] When the difference between the inlet temperature and the outdoor ambient temperature is less than the second difference threshold, the first cooling module is triggered to be turned off, and the second cooling module is turned on.

[0020] Optionally, when the difference between the inlet temperature and the outdoor ambient temperature is less than the second difference threshold, the first cooling module is triggered to be turned off, and the second cooling module is turned on, including:

[0021] When the difference between the inlet liquid temperature and the outdoor ambient temperature changes from greater than or equal to the first difference threshold to less than the second difference threshold, the second cooling module is triggered to turn on, and the first cooling module is triggered to turn off until the outlet liquid temperature stabilizes.

[0022] Optionally, when the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to the first difference threshold, triggering the first cooling module to turn on and the second cooling module to turn off includes:

[0023] When the difference between the inlet liquid temperature and the outdoor ambient temperature changes from less than the second difference threshold to greater than or equal to the first difference threshold, the first cooling module is triggered to turn on, and the second cooling module is triggered to turn off until the outlet liquid temperature stabilizes.

[0024] Optionally, the first cooling module is a natural cooling module, and the second cooling module is a compressor cooling module.

[0025] In another aspect, a switching device for different cooling modes is applied to a refrigeration system, wherein the refrigeration system includes different cooling modules, wherein each of the cooling modules is independent of each other; a liquid storage container is provided at a liquid outlet of the refrigeration system; the device includes:

[0026] An acquisition calculation module is used to obtain the liquid inlet temperature and the outdoor ambient temperature of the refrigeration system, and calculate the difference between the liquid inlet temperature and the outdoor ambient temperature;

[0027] The switching module is used to trigger the switching of different cooling modules according to the difference between the inlet temperature and the outdoor ambient temperature and the set difference threshold, so that the coolant produced by different cooling modules is mixed in the liquid storage container, thereby changing the outlet temperature of different cooling modules when switching.

[0028] In another aspect, a switching device for different cooling modes includes a processor and a memory, wherein the processor is connected to the memory:

[0029] Wherein, the processor is used to call and execute the program stored in the memory;

[0030] The memory is used to store the program, and the program is at least used to execute any one of the above-mentioned switching methods of different cooling modes.

[0031] On the other hand, a refrigeration system comprises: the above-mentioned switching device for different cooling modes and different refrigeration modules, wherein each of the cooling modules is independent of each other; and a liquid storage container is provided at the liquid outlet end of the refrigeration system.

[0032] Optionally, a solenoid valve is provided on the cooling loop of each cooling module, and the switching device for different cooling modes controls the opening and closing of the corresponding cooling module by controlling the opening and closing of the solenoid valve.

[0033] Optionally, the refrigeration system includes an air conditioner.

[0034] The technical solution provided by the present invention has at least the following beneficial effects:

[0035] The inlet liquid temperature and the outdoor ambient temperature of the refrigeration system are obtained, and the difference between the inlet liquid temperature and the outdoor ambient temperature is calculated; according to the difference between the inlet liquid temperature and the outdoor ambient temperature and the set difference threshold, the switching of different cooling modules is triggered, so that the coolants produced by different cooling modules are mixed in the liquid storage container, and the outlet liquid temperature when different cooling modules are switched is changed. Therefore, by adopting the technical solution provided by the present application, when different cooling modules are switched, the coolant produced by the switched cooling module and the final remaining coolant of the cooling module before switching are mixed in the liquid storage container, thereby changing the outlet liquid temperature when switching, reducing the temperature difference between the two cooling liquids, improving the reliability of the user end, and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A schematic diagram of the structure of a refrigeration system provided by one embodiment of the present invention;

[0038] Figure 2 A schematic flow chart of a method for switching between different cooling modes provided by an embodiment of the present invention;

[0039] Figure 3 A schematic diagram of the structure of a switching device for different cooling modes provided by an embodiment of the present invention;

[0040] Figure 4 A schematic diagram of the structure of a switching device for different cooling modes provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0041] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0042] As described in the background technology, in order to reduce energy consumption, liquid cooling source air conditioning products with both conventional cooling (natural heat dissipation) and compressor cooling (steam compression refrigeration) are usually used in related technologies. By switching the cooling mode, refrigeration is achieved to avoid the compressor being turned on all the time. However, when switching between the two cooling modes, the temperature change of the coolant is too large, which will reduce the reliability of the end-user equipment and shorten its service life.

[0043] Therefore, there is a technical problem in the related art that the temperature of the coolant changes too much when the cooling mode is switched, resulting in reduced reliability at the user end and shortened service life.

[0044] Based on this, an embodiment of the present invention provides a method, device, equipment and refrigeration system for switching between different cooling modes.

[0045] The switching method of different cooling modes provided in the present application can be applied to a refrigeration system. The refrigeration system may include different cooling modules, each of which has a complete cooling function and operates independently of each other, and a liquid storage container, such as a liquid storage tank, is provided at the liquid outlet of the refrigeration system. Each cooling module can independently perform the cooling function.

[0046] Figure 1 A structural schematic diagram of a refrigeration system provided for one embodiment of the present invention, the refrigeration system may include a switching device for different cooling methods and different refrigeration modules, the number of cooling modules may be 2, divided into a first cooling module and a second cooling module, for example, the first cooling module may be a natural cooling module, the second cooling module may be a compressor cooling module, the natural cooling module and the compressor cooling module are taken as examples to illustrate the technical solution of the present application. The switching device for different cooling methods includes a processor and a memory, the processor is connected to the memory; the processor is used to call and execute a program stored in the memory; the memory is used to store a program, and the program is at least used to execute any one of the switching methods for different cooling methods provided in the present application.

[0047] See also Figure 1 The refrigeration system is a liquid cooling system. The coolant of the liquid cooling system is cooled by the cooling module and transported to the user end. Each cooling module has a coolant flow path. A solenoid valve can be set on the cooling loop of each cooling module to realize the opening and closing of the cooling module. Optionally, the solenoid valve can be set at the liquid inlet end, and the first solenoid valve M1 is set at the liquid inlet end of the natural cooling module, and the second solenoid valve M2 is set at the liquid inlet end of the compressor cooling module. The switching device of different cooling modes realizes the switching of the non-stop cooling module by controlling the opening and closing of the first solenoid valve M1 and the second solenoid valve M2.

[0048] The natural cooling module may include a first solenoid valve M1, a heat exchanger 11, a cooling fan, and an automatic exhaust valve 12. After the first solenoid valve is opened, the coolant flows into the heat exchanger, where the low-temperature outdoor circulating air and the high-temperature coolant perform heat exchange, taking away the heat of the coolant, thereby achieving the purpose of cooling the coolant.

[0049] The compressor cooling module may include a compressor 13, a condensing heat exchanger 14, a condensing fan 15, a throttling device, a plate heat exchanger 16, a refrigeration system auxiliary device, etc. After the second solenoid valve is opened, the coolant flows into the plate heat exchanger, where the low-temperature and low-pressure refrigerant (the temperature is reduced due to the steam refrigeration cycle) and the high-temperature coolant exchange heat and take away the heat of the coolant, thereby achieving the purpose of cooling the coolant.

[0050] The outlet of the natural cooling module and the compressor cooling module is provided with a liquid storage tank 17, which is used as a mixing place for the two cooling liquids when the flow path is changed to avoid excessive changes in the cooling liquid temperature when the two cooling modules are switched. A temperature sensor can be set at the outlet of the liquid storage tank to detect its outlet liquid temperature T 出液 .

[0051] Figure 2 A schematic diagram of a flow chart of a method for switching between different cooling modes provided by an embodiment of the present invention, see Figure 2 , this embodiment may include the following steps:

[0052] Step S21, obtaining the liquid inlet temperature and the outdoor ambient temperature of the refrigeration system, and calculating the difference between the liquid inlet temperature and the outdoor ambient temperature.

[0053] Step S22, triggering the switching of different cooling modules according to the difference between the inlet liquid temperature and the outdoor ambient temperature and the set difference threshold, so that the coolants produced by different cooling modules are mixed in the liquid storage container, changing the outlet liquid temperature when different cooling modules are switched.

[0054] The inlet temperature can be a preset inlet temperature, and the inlet temperature can be obtained by reading the set temperature; the outdoor ambient temperature can be obtained by testing a temperature sensor. In this application, the outdoor ambient temperature sensor can be set on the air inlet side of the heat exchanger without heat exchange through the heat exchanger, thereby improving the accuracy of temperature detection.

[0055] For example, after the refrigeration system is turned on, the difference between the inlet temperature and the outdoor ambient temperature is calculated, and the switching of different cooling modules is triggered according to the difference and the set difference threshold. When different cooling modules are switched, the coolant generated by the switched cooling module and the remaining coolant of the cooling module before the switch are mixed in the liquid storage container, thereby changing the outlet temperature during the switch, reducing the temperature difference between the two coolants, improving the reliability of the user end, and increasing the service life.

[0056] It can be understood that the technical solution provided in this embodiment obtains the inlet temperature of the refrigeration system and the outdoor ambient temperature, and calculates the difference between the inlet temperature and the outdoor ambient temperature; according to the difference between the inlet temperature and the outdoor ambient temperature and the set difference threshold, triggers the switching of different cooling modules, so that the coolants produced by different cooling modules are mixed in the liquid storage container, and the outlet temperature of different cooling modules is changed when they are switched. Therefore, using the technical solution provided in this application, when different cooling modules are switched, the coolant produced by the switched cooling module and the final remaining coolant of the cooling module before switching are mixed in the liquid storage container, thereby changing the outlet temperature of the liquid when switching, reducing the temperature difference between the two cooling liquids, improving the reliability of the user end, and improving the service life.

[0057] In some embodiments, the cooling module includes: a first cooling module and a second cooling module, and the cooling effect of the second cooling module is better than that of the first cooling module. Setting a difference threshold includes: a first difference threshold; triggering the switching of different cooling modules according to the difference between the inlet temperature and the outdoor ambient temperature and the set difference threshold, including:

[0058] When the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to a first difference threshold, the first cooling module is triggered to turn on and the second cooling module is turned off.

[0059] For example, the outdoor ambient temperature can be recorded as T 环境 , the inlet temperature is T 进液 , the first difference threshold is △T1, and the difference T between the inlet temperature and the outdoor ambient temperature is calculated. 进液 -T 环境 , when T 进液 -T 环境 When ≥△T1, only the first cooling module (natural cooling module) is started, that is, only the first solenoid valve is opened and the second solenoid valve is closed.

[0060] In some embodiments, setting the difference threshold further includes: a second difference threshold, the first difference threshold is greater than the second difference threshold; triggering the switching of different cooling modules according to the difference between the inlet temperature and the outdoor ambient temperature and the set difference threshold, further includes:

[0061] When the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to the second difference threshold and less than the first difference threshold, the first cooling module is triggered to start and the second cooling module is triggered to start.

[0062] For example, the second difference threshold can be recorded as △T2. When △T2≤T 进液 -T 环境 When <△T1, the first cooling module (natural cooling module) and the second cooling module (compressor cooling module) are started, that is, the first solenoid valve is opened, and the second solenoid valve is opened.

[0063] In some embodiments, a temperature detection component is provided at the outlet of the liquid storage container; the method further includes: obtaining the liquid outlet temperature of the refrigeration system based on the temperature detection component; and regulating the refrigeration component of the second cooling module according to the liquid outlet temperature and the liquid outlet temperature requirement.

[0064] Among them, the temperature detection component can be a temperature sensor, and the temperature sensor is used to detect the outlet liquid temperature. When the two cooling modules are started at the same time, the two coolants enter the liquid storage tank for mixing after cooling, and the operating frequency of the compressor and the speed of the condensing fan are adjusted according to the outlet liquid temperature, so that the outlet liquid temperature of the mixed coolant is controlled within the required range. Among them, the outlet liquid temperature requirement can be a specific expected temperature. When the outlet liquid temperature is higher than the expected temperature, the operating frequency of the compressor and the speed of the condensing fan are increased; otherwise, the operating frequency of the compressor and the speed of the condensing fan are reduced.

[0065] In some embodiments, it also includes:

[0066] When the difference between the inlet liquid temperature and the outdoor ambient temperature is less than a second difference threshold, the first cooling module is triggered to be turned off, and the second cooling module is turned on.

[0067] For example, when T 进液 -T 环境 When <△T2, only the second cooling module (compressor cooling module) is started, that is, the second solenoid valve is opened and the first solenoid valve is closed.

[0068] In some embodiments, when the difference between the inlet liquid temperature and the outdoor ambient temperature is less than a second difference threshold, the first cooling module is triggered to close, and the second cooling module is triggered to open, including: when the difference between the inlet liquid temperature and the outdoor ambient temperature changes from greater than or equal to the first difference threshold to less than the second difference threshold, the second cooling module is triggered to open, until the outlet liquid temperature stabilizes, triggering the first cooling module to close.

[0069] For example, when the unit is in the state of starting only the free cooling module (i.e., T 进液 -T 环境 ≥△T1), as time changes, it is detected that when T 进液 -T 环境 When △T2 is less than, the compressor cooling module is started, the first solenoid valve and the second solenoid valve are both opened, and T is detected every time t (users can do it according to their needs). 出液 , when T 出液 When it tends to be stable, close the second solenoid valve, turn off the natural cooling module, and only start the compressor cooling module.

[0070] It can be understood that in this embodiment, when switching between different cooling modes, by keeping the two cooling modes turned on at the same time at the initial stage of switching, the mixing degree of coolant in different paths in the liquid storage tank is increased, and the temperature difference caused by mode switching is reduced; when the outlet liquid temperature tends to be stable, the cooling mode before switching is turned off to ensure the service life of the user end.

[0071] When the unit is in the state of starting only the free cooling module (i.e., T 进液 -T 环境 ≥△T1), as time changes, it is detected that △T2≤T 进液 -T 环境 When △T1 is less than, the compressor cooling module is started, the first solenoid valve and the second solenoid valve are both opened, and the two cooling liquids are cooled and enter the liquid storage tank for mixing, and then according to the detected temperature T 出液 To control the operating frequency of the compressor and the speed of the condensing fan, so that the mixed coolant temperature T 出液 Control within the required range.

[0072] It can be understood that, in this embodiment, the operating frequency of the compressor and the speed of the condensing fan are controlled according to the outlet liquid temperature, thereby ensuring that the outlet liquid temperature is within the required range.

[0073] In some embodiments, when the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to a first difference threshold, the first cooling module is triggered to turn on and the second cooling module is turned off, including:

[0074] When the difference between the inlet liquid temperature and the outdoor ambient temperature changes from less than the second difference threshold to greater than or equal to the first difference threshold, the first cooling module is triggered to turn on, and the second cooling module is triggered to turn off until the outlet liquid temperature stabilizes.

[0075] For example, when the unit is only starting the compressor cooling module (T 进液 -T 环境 <△T2), as time changes, when T 进液 -T 环境 ≥△T1, the natural cooling module is started, the first solenoid valve and the second solenoid valve are both opened, and the outlet liquid temperature is detected once every time t (which can be set by the user). When the outlet liquid temperature tends to be stable, the second solenoid valve is closed, that is, the compressor cooling module is closed, and only the natural cooling module is started.

[0076] It can be understood that in this embodiment, when switching between different cooling modes, by keeping the two cooling modes turned on at the same time at the initial stage of switching, the mixing degree of coolant in different paths in the liquid storage tank is increased, and the temperature difference caused by mode switching is reduced; when the outlet liquid temperature tends to be stable, the cooling mode before switching is turned off to ensure the service life of the user end.

[0077] When the unit is only starting the compressor cooling module (T 进液 -T 环境 <△T2), as time changes, it is detected that △T2≤T 进液 -T 环境 When <△T1, the natural cooling module is started, the first solenoid valve and the second solenoid valve are both opened, and the two coolants enter the liquid storage tank for mixing after being cooled. Then, the operating frequency of the compressor and the speed of the condensing fan are controlled according to the detected outlet liquid temperature, so that the outlet temperature of the mixed coolant is controlled within the required range.

[0078] It can be understood that, in this embodiment, the operating frequency of the compressor and the speed of the condensing fan are controlled according to the outlet liquid temperature, thereby ensuring that the outlet liquid temperature is within the required range.

[0079] In some embodiments, when the unit starts the free cooling module and the compressor cooling module at the same time, it is detected that T 进液 -T 环境 When ≥△T1, the first solenoid valve opens, the second solenoid valve closes, the compressor cooling module is turned off, and only the natural cooling module is started; when T is detected 进液 -T 环境 <△T2, the first solenoid valve is closed, the second solenoid valve is started, the natural cooling module is closed, and only the compressor cooling module is started.

[0080] In some embodiments, the first difference threshold may be set to 20°C and the second difference threshold may be set to 10°C.

[0081] Based on a general inventive concept, an embodiment of the present invention further provides a switching device for different cooling modes, which is used to implement the above method embodiment.

[0082] Figure 3 Schematic diagram of a switching device for different cooling modes provided by an embodiment of the present invention. The device provided by this embodiment is applied to a refrigeration system. The refrigeration system includes different cooling modules, wherein each cooling module is independent of each other. A liquid storage container is provided at the liquid outlet of the refrigeration system. Figure 3 The device provided by the present invention may include the following structure:

[0083] The acquisition calculation module 31 is used to obtain the liquid inlet temperature and the outdoor ambient temperature of the refrigeration system, and calculate the difference between the liquid inlet temperature and the outdoor ambient temperature;

[0084] The switching module 32 is used to trigger the switching of different cooling modules according to the difference between the inlet liquid temperature and the outdoor ambient temperature and the set difference threshold, so that the coolants produced by different cooling modules are mixed in the liquid storage container, thereby changing the outlet liquid temperature when different cooling modules are switched.

[0085] Optionally, the cooling module includes: a first cooling module and a second cooling module, the cooling effect of the second cooling module is better than that of the first cooling module; a difference threshold is set, including: a first difference threshold; a switching module, specifically used to trigger the first cooling module to turn on and the second cooling module to turn off when the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to the first difference threshold.

[0086] Optionally, setting the difference threshold also includes: a second difference threshold, the first difference threshold is greater than the second difference threshold; a switching module is also used to trigger the first cooling module to turn on and the second cooling module to turn on when the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to the second difference threshold and less than the first difference threshold.

[0087] Optionally, the outlet of the liquid storage container is provided with a temperature detection component; the switching module is also used for:

[0088] Based on the temperature detection component, the outlet liquid temperature of the refrigeration system is obtained;

[0089] According to the outlet liquid temperature and the outlet liquid temperature requirement, the refrigeration component of the second cooling module is regulated.

[0090] Optionally, the switching module is also used to trigger the first cooling module to turn off and the second cooling module to turn on when the difference between the inlet liquid temperature and the outdoor ambient temperature is less than a second difference threshold.

[0091] Optionally, a switching module is specifically used to trigger the second cooling module to turn on when the difference between the inlet liquid temperature and the outdoor ambient temperature changes from greater than or equal to a first difference threshold to less than a second difference threshold, and to trigger the first cooling module to turn off when the outlet liquid temperature stabilizes.

[0092] Optionally, a switching module is specifically used to trigger the first cooling module to turn on when the difference between the inlet liquid temperature and the outdoor ambient temperature changes from less than the second difference threshold to greater than or equal to the first difference threshold, and trigger the second cooling module to turn off when the outlet liquid temperature stabilizes.

[0093] Optionally, the first cooling module is a natural cooling module, and the second cooling module is a compressor cooling module.

[0094] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0095] It can be understood that the technical solution provided in this embodiment obtains the inlet temperature of the refrigeration system and the outdoor ambient temperature, and calculates the difference between the inlet temperature and the outdoor ambient temperature; according to the difference between the inlet temperature and the outdoor ambient temperature and the set difference threshold, triggers the switching of different cooling modules, so that the coolants produced by different cooling modules are mixed in the liquid storage container, and the outlet temperature of different cooling modules is changed when they are switched. Therefore, using the technical solution provided in this application, when different cooling modules are switched, the coolant produced by the switched cooling module and the final remaining coolant of the cooling module before switching are mixed in the liquid storage container, thereby changing the outlet temperature of the liquid when switching, reducing the temperature difference between the two cooling liquids, improving the reliability of the user end, and improving the service life.

[0096] Based on a general inventive concept, an embodiment of the present invention further provides a switching device for different cooling modes, which is used to implement the above method embodiment.

[0097] Figure 4 A schematic diagram of a switching device for different cooling modes provided by an embodiment of the present invention, see Figure 4 The switching device for different cooling modes provided in the embodiment of the present invention includes a processor 41 and a memory 42, wherein the processor 41 is connected to the memory 42. The processor 41 is used to call and execute the program stored in the memory 42; the memory 42 is used to store the program, and the program is at least used to execute the switching method for different cooling modes in the above embodiment.

[0098] The specific implementation scheme of the switching device for different cooling methods provided in the embodiment of the present application can refer to the implementation scheme of the switching method for different cooling methods in any of the above embodiments, and will not be repeated here.

[0099] Based on a general inventive concept, an embodiment of the present invention further provides a refrigeration system.

[0100] The refrigeration system provided in this embodiment is characterized in that it includes: a switching device for different cooling modes and different refrigeration modules recorded in the above embodiments, wherein each cooling module is independent of each other; and a liquid storage container is provided at the liquid outlet end of the refrigeration system.

[0101] Optionally, a solenoid valve is provided on the cooling loop of each cooling module, and a switching device for different cooling modes controls the opening and closing of the corresponding cooling module by controlling the opening and closing of the solenoid valve.

[0102] Optionally, the refrigeration system includes air conditioning.

[0103] Regarding the system in the above embodiment, the specific manner in which each component performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0104] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0105] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0106] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention belong.

[0107] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0108] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0109] In addition, each functional unit in each embodiment of the present invention may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0110] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0111] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0112] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for switching between different cooling modes, characterized in that: Applied to a refrigeration system, the refrigeration system includes different cooling modules, wherein each of the cooling modules is independent of each other; a liquid storage container is provided at a liquid outlet of the refrigeration system; the method includes: Obtaining the liquid inlet temperature and the outdoor ambient temperature of the refrigeration system, and calculating the difference between the liquid inlet temperature and the outdoor ambient temperature; According to the difference between the inlet temperature and the outdoor ambient temperature and the set difference threshold, trigger the switching of different cooling modules, so that the coolants produced by different cooling modules are mixed in the liquid storage container, and the outlet temperature of the different cooling modules is changed when the cooling modules are switched; Among them, the incoming liquid enters different cooling modules respectively to obtain the cooled coolant, and the coolants at different temperatures are mixed in the liquid storage container, and then the outgoing liquid when the different cooling modules are switched is discharged from the liquid storage container.

2. The method according to claim 1, characterized in that The cooling module comprises: a first cooling module and a second cooling module, wherein the cooling effect of the second cooling module is better than that of the first cooling module; The set difference threshold includes: a first difference threshold; the triggering of switching of different cooling modules according to the difference between the inlet temperature and the outdoor ambient temperature and the set difference threshold includes: When the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to the first difference threshold, the first cooling module is triggered to turn on and the second cooling module is turned off.

3. The method according to claim 2, characterized in that The setting difference threshold value further includes: a second difference threshold value, the first difference threshold value is greater than the second difference threshold value; the triggering of switching of different cooling modules according to the difference between the inlet temperature and the outdoor ambient temperature and the setting difference threshold value also includes: When the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to the second difference threshold and less than the first difference threshold, the first cooling module is triggered to turn on and the second cooling module is triggered to turn on.

4. The method according to claim 3, characterized in that The outlet of the liquid storage container is provided with a temperature detection component; the method further comprises: Based on the temperature detection component, obtaining the liquid outlet temperature of the refrigeration system; According to the liquid outlet temperature and the liquid outlet temperature requirement, the refrigeration component of the second cooling module is regulated.

5. The method according to claim 3, characterized in that: Also includes: When the difference between the inlet temperature and the outdoor ambient temperature is less than the second difference threshold, the first cooling module is triggered to be turned off, and the second cooling module is turned on.

6. The method according to claim 5, characterized in that When the difference between the inlet temperature and the outdoor ambient temperature is less than the second difference threshold, the first cooling module is triggered to be turned off, and the second cooling module is turned on, including: When the difference between the inlet liquid temperature and the outdoor ambient temperature changes from greater than or equal to the first difference threshold to less than the second difference threshold, the second cooling module is triggered to turn on, and the first cooling module is triggered to turn off until the outlet liquid temperature stabilizes.

7. The method according to claim 3, characterized in that When the difference between the inlet temperature and the outdoor ambient temperature is greater than or equal to the first difference threshold, the first cooling module is triggered to turn on and the second cooling module is turned off, including: When the difference between the inlet liquid temperature and the outdoor ambient temperature changes from less than the second difference threshold to greater than or equal to the first difference threshold, the first cooling module is triggered to turn on, and the second cooling module is triggered to turn off until the outlet liquid temperature stabilizes.

8. The method according to any one of claim 2, characterized in that: The first cooling module is a natural cooling module, and the second cooling module is a compressor cooling module.

9. A switching device for different cooling modes, characterized in that: Applied to a refrigeration system, the refrigeration system includes different cooling modules, wherein each of the cooling modules is independent of each other; a liquid storage container is provided at the liquid outlet of the refrigeration system; the device includes: An acquisition calculation module is used to obtain the liquid inlet temperature and the outdoor ambient temperature of the refrigeration system, and calculate the difference between the liquid inlet temperature and the outdoor ambient temperature; The switching module is used to trigger the switching of different cooling modules according to the difference between the inlet temperature and the outdoor ambient temperature and the set difference threshold, so that the coolant produced by the different cooling modules is mixed in the liquid storage container, and the outlet temperature of the different cooling modules is changed when the different cooling modules are switched; wherein the inlet liquid enters different cooling modules respectively to obtain the cooled coolant, and the coolants of different temperatures are mixed in the liquid storage container, and then the outlet liquid when the different cooling modules are switched is discharged from the liquid storage container.

10. A switching device for different cooling modes, characterized in that: The invention comprises a processor and a memory, wherein the processor is connected to the memory: Wherein, the processor is used to call and execute the program stored in the memory; The memory is used to store the program, and the program is at least used to execute the method for switching between different cooling modes as described in any one of claims 1-8.

11. A refrigeration system, characterized in that: include: The switching device for different cooling modes and different refrigeration modules as described in claim 10, wherein each of the cooling modules is independent of each other; and a liquid storage container is provided at the liquid outlet end of the refrigeration system.

12. The refrigeration system according to claim 11, characterized in that: A solenoid valve is provided on the cooling loop of each cooling module, and the switching device for different cooling modes controls the opening and closing of the corresponding cooling module by controlling the opening and closing of the solenoid valve.

13. The refrigeration system according to claim 11, characterized in that: The refrigeration system includes an air conditioner.

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