Fluorine pump multi-connected refrigerating system and method applied to data center

Abstract

The invention provides a fluorine pump multi-connected refrigerating system and method applied to a data center. Comprising a first-stage circulation loop, a second-stage circulation loop and a control assembly which are in thermal coupling connection, the first-stage circulation loop comprises at least one tail end device, and each tail end device is formed by communicating a first heat exchange assembly, a first evaporation assembly, a first liquid storage assembly, a first fluorine pump assembly, a first expansion valve and a second evaporation assembly; the second-stage circulation loop comprises at least one cold source module, and each cold source module is formed by communicating a first condensation assembly, a first supercooling assembly, a second liquid storage assembly, a second fluorine pump assembly, a first evaporation assembly, a gas-liquid separation assembly and a compression assembly; and the control assembly is used for controlling each cold source module in the second-stage circulation loop to generate cold energy under the condition that the first expansion valve is switched on, and the cold energy is conducted to the first-stage circulation loop at the thermal coupling position, so that the second evaporation assembly provides the cold energy for the load.

Description

Technical Field

[0001] The present application relates to the field of refrigeration, and in particular to a fluorine pump multi-connected refrigeration system and method for use in data centers. Background Art

[0002] In recent years, a fluorine pump dual-circulation system has been commonly used to save energy. However, the traditional fluorine pump multi-system includes a data center. The data center generally includes servers, storage systems, network equipment and cooling systems, and is usually used to collect, store, process, distribute and manage large amounts of data. However, due to the large size of the data center and the long piping, the lubricating oil cannot return to the compressor in time, which in turn causes damage to the compressor. Summary of the Invention

[0003] The embodiments of the present application provide a fluorine pump multi-connected refrigeration system and method for use in data centers, which can optimize the complex piping problems of traditional fluorine pump multi-connected systems, shorten the length of lubricating oil pipelines, and prevent damage to the compressor.

[0004] In a first aspect, the present application provides a fluorine pump multi-connected refrigeration system for a data center, the system comprising: a first-stage circulation loop, a second-stage circulation loop, and a control component that are thermally coupled; wherein,

[0005] The first-stage circulation loop includes: at least one terminal device, each of which is a circulation loop formed by connecting a first heat exchange component, a first evaporation component, a first liquid storage component, a first fluorine pump component, a first expansion valve, and a second evaporation component;

[0006] The second-stage circulation loop includes: at least one cold source module, each of which is a circulation loop formed by connecting a first condensing component, a first supercooling component, a second liquid storage component, a second fluorine pump component, the first evaporation component, a gas-liquid separation component, and a compression component;

[0007] The control component is respectively connected to the first expansion valve, the first fluorine pump component, and the second fluorine pump component, and is used to control each cold source module in the second-stage circulation loop to generate cold energy when the first expansion valve is turned on, and to conduct the cold energy to the first-stage circulation loop at the thermal coupling point, so that the second evaporation component provides cold energy to the load.

[0008] In a second aspect, the present application proposes a fluorine pump multi-connected refrigeration method for a data center, which is applied to any of the above-mentioned fluorine pump multi-connected refrigeration systems; the method comprises:

[0009] When the first expansion valve is controlled to be in conduction, each cold source module in the second-stage circulation loop generates cold energy, and the cold energy is heat-transferred to the first-stage circulation loop at the thermal coupling point, so that the second evaporation component provides cold energy to the load.

[0010] An embodiment of the present application provides a fluorine pump multi-connected refrigeration system and method for a data center; the system includes: a first-stage circulation loop, a second-stage circulation loop and a control component that are thermally coupled; wherein the first-stage circulation loop includes: at least one terminal device, each terminal device is a circulation loop formed by connecting a first heat exchange component, a first evaporation component, a first liquid storage component, a first fluorine pump component, a first expansion valve, and a second evaporation component; the second-stage circulation loop includes: at least one cold source module, each cold source module is a circulation loop formed by connecting a first condensing component, a first supercooling component, a second liquid storage component, a second fluorine pump component, a first evaporation component, a gas-liquid separation component, and a compression component; the control component is respectively connected to the first expansion valve, the first fluorine pump component, and the second fluorine pump component, and is used to control each cold source module in the second-stage circulation loop to generate cold energy when the first expansion valve is in conduction, and to conduct the cold energy to the first-stage circulation loop at the thermal coupling point, so that the second evaporation component provides cold energy to the load. By adopting the solution of the embodiment of the present application, the complex piping problem of the traditional multi-fluorine pump system is optimized, the length of the lubricating oil return pipeline is shortened, and each cold source module operates independently, preventing the refrigerant and lubricating oil from accumulating in the shut-down cold source module when the individual cold source module is shut down, resulting in insufficient refrigerant in the entire system or insufficient lubricating oil damaging the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure of a fluorine pump multi-connected refrigeration system for a data center provided in an embodiment of the present application;

[0012] Figure 2 A schematic structural diagram of an exemplary fluorine pump multi-connected refrigeration system for a data center provided in an embodiment of the present application;

[0013] Figure 3 A schematic structural diagram of another exemplary fluorine pump multi-connected refrigeration system for a data center provided in an embodiment of the present application;

[0014] Figure 4 A schematic diagram of a portion of the structure of an exemplary cold source module provided in an embodiment of the present application;

[0015] Figure 5 A partial structural diagram of another exemplary cold source module provided in an embodiment of the present application;

[0016] Figure 6 A schematic diagram of a flow chart of a fluorine pump multi-cooling method for a data center provided in an embodiment of the present application;

[0017] Figure 7 A schematic diagram of the structure of a fluorine pump multi-connected refrigeration device for use in a data center provided in an embodiment of the present application;

[0018] Figure 8 This is a schematic structural diagram of a fluorine pump multi-split refrigeration device used in a data center, provided in an embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below with reference to the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0021] In the following description, reference is made to "some embodiments," which describe a subset of all possible embodiments. However, it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict. It should also be noted that the terms "first," "second," and the like in the embodiments of the present application are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It is understood that "first," "second," and the like may interchange specific orders or precedences where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0022] Traditional, older data centers use direct expansion air conditioners, which rely on compressors to drive refrigerants for cooling in winter, summer, and transitional seasons. This results in low energy efficiency and waste. In recent years, a popular energy-saving approach has been the use of a dual-circulation fluorine pump system, which utilizes natural cooling to achieve energy savings. However, due to the large size of data centers and the long piping, traditional multi-unit fluorine pump systems can delay the timely return of lubricating oil to the compressors, leading to compressor damage.

[0023] Based on this, the embodiment of the present application provides a fluorine pump multi-connected refrigeration system for use in a data center. Figure 1 A schematic diagram of the structure of a fluorine pump multi-connected refrigeration system for a data center provided in an embodiment of the present application; Figure 2 A schematic structural diagram of an exemplary fluorine pump multi-connected refrigeration system for a data center provided in an embodiment of the present application; Figure 3 This is another exemplary structural diagram of a fluorine pump multi-connected refrigeration system for a data center provided in an embodiment of the present application; Figure 1 、 Figure 2 and Figure 3For example, a fluorine pump multi-connected refrigeration system 10 used in a data center includes: a first-stage circulation loop 11, a second-stage circulation loop 12 and a control component 13 that are thermally coupled; wherein the first-stage circulation loop 11 includes: at least one terminal device 110, each terminal device 110 is a circulation loop formed by connecting a first heat exchange component 1101, a first evaporation component 1102, a first liquid storage component 1103, a first fluorine pump component 1104, a first expansion valve 1105, and a second evaporation component 1106; the second-stage circulation loop 12 includes: at least one cold source module 120, each cold source module is a first condensation component The circulation loop is formed by connecting the component 1201, the first supercooling component 1202, the second liquid storage component 1203, the second fluorine pump component 1204, the first evaporation component 1102, the gas-liquid separation component 1205, and the compression component 1206; the control component 13 is respectively connected to the first expansion valve 1105, the first fluorine pump component 1104, and the second fluorine pump component 1204, and is used to control the first expansion valve 1105 to be in conduction, so that each cold source module 120 in the second-stage circulation loop 12 generates cold energy, and conducts the cold energy to the first-stage circulation loop 11 at the thermal coupling point, so that the second evaporation component 1106 provides cold energy to the load.

[0024] It should be noted that the number of terminal devices 110 can be determined according to actual conditions, and is not limited here. As an example, the number of terminal devices 110 generally does not exceed 32. The number of cold source modules 120 can be determined according to actual conditions, and is not limited here. As an example, the number of cold source modules 120 generally does not exceed 4. The control component 13 can be understood as a controller, and the connection method of the control component 13 with the first expansion valve 1105, the first fluorine pump component 1104, and the second fluorine pump component 1204 can be determined according to actual conditions, and is not limited here. As an example, the control component 13 is electrically connected to the first expansion valve 1105, the first fluorine pump component 1104, and the second fluorine pump component 1204. The load can be any electronic device, and the specific selection can be determined according to actual conditions, and is not limited here; wherein, the control component 13 is not in Figure 1 、 Figure 2 and Figure 3 The terminal device 110 further includes a sixth expansion valve 1107 , which is in communication with the second evaporation component 1106 .

[0025] In an embodiment of the present application, the first condensing component 1201 includes a first condenser; the first subcooling component 1202 includes a second expansion valve 12021 and a first plate heat exchanger 12022; the first plate heat exchanger 12022 is respectively connected to the first condenser, the second expansion valve 12021, the second liquid storage component 1203, and the gas-liquid separation component 1205; the second expansion valve 12021 is connected to the gas-liquid separation component 1205; the control component 13 is connected to the second expansion valve 12021; the control component 13 is also used to control the second expansion valve 12021 to be in conduction, so that the refrigerant flowing out of the first condenser is diverted after passing through the first plate heat exchanger 12022 to form a branch refrigerant, and the branch refrigerant is throttled by the second expansion valve 12021 to form a temperature difference refrigerant with the refrigerant flowing out of the first condenser.

[0026] It should be noted that the first plate heat exchanger 12022 is connected to the first condenser, the second expansion valve 12021, the second liquid storage component 1203, and the gas-liquid separation component 1205 respectively; the second expansion valve 12021 is connected to the gas-liquid separation component 1205. This connection method can be combined with Figure 2 Provide an example.

[0027] It should be noted that the first condensing component 1201 includes a first condenser, which can be understood as the first condensing component 1201 being a condenser. In actual applications, the first condensing component 1201 is a first-stage condenser. The second expansion valve 12021 is an electronic expansion valve, which can be understood as a throttling component. In actual applications, the second expansion valve 12021 can be understood as a subcooler electronic expansion valve; the first plate heat exchanger 12022 can be understood as a subcooler. The second liquid storage component 1203 can be understood as a liquid storage tank; and the gas-liquid separation component 1205 can be understood as a gas-liquid separator. The connection method between the control component 13 and the second expansion valve 12021 can be determined according to actual conditions and is not limited here. As an example, the control component 13 can be electrically connected to the second expansion valve 12021.

[0028] In an embodiment of the present application, the control component 13 is also used to control the second expansion valve 12021 to be turned on, so that the refrigerant flowing out of the first condenser is diverted after passing through the first plate heat exchanger 12022 to form a branch refrigerant. After the branch refrigerant is throttled by the second expansion valve 12021, a temperature difference refrigerant is formed with the refrigerant flowing out of the first condenser. It can be illustrated by an example that the controller is used to control the second expansion valve 12021 to be turned on, so that the refrigerant (or refrigerant medium) flowing out of the first-stage condenser is diverted after passing through the first plate heat exchanger 12022 to form a small branch refrigerant. After the small branch refrigerant in the branch is throttled by the second expansion valve 12021, the refrigerant pressure decreases, and the temperature of the refrigerant also decreases accordingly, forming a temperature difference with the refrigerant flowing out of the first-stage condenser.

[0029] For ease of understanding, here is an example. Figure 4 A partial structural diagram of an exemplary cold source module provided in an embodiment of the present application; Figure 4 As shown, the controller is used to control the second expansion valve 12021 to be in conduction, so that the refrigerant flowing out of the first condensing component 1201 is diverted after passing through the first plate heat exchanger 12022 to form a branch refrigerant. The branch refrigerant is throttled by the second expansion valve 12021 and forms a temperature difference refrigerant with the condensate flowing out of the first condensing component 1201; It should be noted that Figure 4 The structure of the controller is not shown in the figure, and the controller is connected to the second expansion valve 12022.

[0030] In an embodiment of the present application, the first condensing component 1201 includes a first condenser; the first subcooling component 1202 includes a second expansion valve 12021 and a first plate heat exchanger 12022; the first plate heat exchanger 12022 is respectively connected to the first condenser, the second expansion valve 12021, the second liquid storage component 1203, and the gas-liquid separation component 1205; the second expansion valve 12021 is connected to the first condenser; the control component 13 is connected to the second expansion valve 12021; the control component 13 is also used to control the second expansion valve 12021 to be in conduction, so that the refrigerant flowing out of the first condenser is divided into two branches, one branch is diverted after passing through the first plate heat exchanger 12022 to form a branch refrigerant, and the other branch is throttled after passing through the second expansion valve 12021 to form a temperature difference refrigerant with the branch refrigerant.

[0031] It should be noted that the first plate heat exchanger 12022 is connected to the first condenser, the second expansion valve 12021, the second liquid storage component 1203, and the gas-liquid separation component 1205 respectively; the second expansion valve 12021 is connected to the first condenser. This connection method can be combined with Figure 3 Provide an example.

[0032] It should be noted that the first condensing component 1201 includes a first condenser, which can be understood as the first condensing component 1201 being a condenser. In actual applications, the first condensing component 1201 is a first-stage condenser. The second expansion valve 12021 is an electronic expansion valve, which can be understood as a throttling component. In actual applications, the second expansion valve 12021 can be understood as a subcooler electronic expansion valve; the first plate heat exchanger 12022 can be understood as a subcooler. The second liquid storage component 1203 can be understood as a liquid storage tank; and the gas-liquid separation component 1205 can be understood as a gas-liquid separator. The connection method between the control component 13 and the second expansion valve 12021 can be determined according to actual conditions and is not limited here. As an example, the control component 13 can be electrically connected to the second expansion valve 12021.

[0033] Among them, the control component 13 is also used to control the second expansion valve 12021 to be turned on, so that the refrigerant flowing out of the first condenser is divided into two branches, one branch is diverted after passing through the first plate heat exchanger 12022 to form a branch refrigerant, and the other branch is throttled after passing through the second expansion valve 12021 to form a temperature difference refrigerant with the branch refrigerant; it can be illustrated by an example that the controller is used to control the second expansion valve 12021 to be turned on, so that the refrigerant (or refrigerant medium) flowing out of the first-stage condenser is divided into two branches, one branch is diverted after passing through the first plate heat exchanger 12022 to form a branch refrigerant, and the other branch is throttled after passing through the second expansion valve 12021, and the refrigerant pressure decreases, and the temperature of the refrigerant also decreases, forming a temperature difference with the branch refrigerant.

[0034] For ease of understanding, here is an example. Figure 5 A partial structural diagram of another exemplary cold source module provided in an embodiment of the present application; Figure 5 As shown, the controller is used to control the second expansion valve 12021 to be in conduction, so that the refrigerant flowing out of the first condensing component 1201 is divided into two branches. One branch is diverted through the first plate heat exchanger 12022 to form a branch refrigerant, and the other branch is throttled by the second expansion valve 12021, so that the refrigerant pressure decreases and the temperature of the refrigerant also decreases, forming a temperature difference with the branch refrigerant formed by the first plate heat exchanger 12022.

[0035] In an embodiment of the present application, the second fluorine pump assembly 1204 includes a first fluorine pump 12041, a first one-way valve 12042 and a third expansion valve 12043. The first fluorine pump 12041 and the first one-way valve 12042 are connected in parallel and then connected to the third expansion valve 12043; the control assembly 13 is connected to the first fluorine pump 12041 and the third expansion valve 12043 respectively; the control assembly 13 is used to control the first fluorine pump 12041 to provide power for the second-stage circulation loop 12 and to control the third expansion valve 12043 to be in a conducting state; the first one-way valve 12042 is used to allow the refrigerant of the second liquid storage assembly 1203 to flow to the first evaporation assembly 1102.

[0036] It should be noted that the control assembly 13 is used to control the first fluorine pump 12041 to provide power to the second-stage circulation loop 12 and to control the third expansion valve 12043 to be in a conductive state. This can be illustrated as the controller being used to control the first fluorine pump 12041 to provide power to the second-stage circulation loop 12 and to control the third expansion valve 12043 to be in a conductive state. The first one-way valve 12042 is used to allow the refrigerant in the second liquid storage assembly 1203 to flow to the first evaporation assembly 1102. This can be illustrated as the first one-way valve 12042 being used to allow the refrigerant in the liquid storage tank to flow to the first-stage evaporator.

[0037] In an embodiment of the present application, the first evaporation component 1102 includes a first evaporator; the first evaporator is respectively connected to the third expansion valve 12043, the gas-liquid separation component 1205, and the first liquid storage component 1103; the first evaporator is used to exchange heat between the refrigerant and the outside air.

[0038] It should be noted that the first evaporation assembly 1102 includes a first evaporator. In practical applications, the first evaporator can also be understood as a first-stage evaporator. The first liquid storage assembly 1103 can be understood as a liquid storage tank. The first evaporator is used to exchange heat between the refrigerant and the outside air. For example, the first-stage evaporator is used to exchange heat between the refrigerant and the outside air.

[0039] In an embodiment of the present application, the compression component 1206 includes a compressor 12061, a second one-way valve 12062, a third one-way valve 12063 and a fourth expansion valve 12064; the compressor 12061 is connected in series with the second one-way valve 12062 and the fourth expansion valve 12064 and then connected in parallel with the third one-way valve 12063; the control component 13 is connected to the fourth expansion valve 12064; the control component 13 is also used to control the third expansion valve 12064 to be in a conducting state; the compressor 12061 is used to compress the low-temperature and low-pressure gas in the gas-liquid separation component 1205 and output high-temperature and high-pressure refrigerant gas.

[0040] It should be noted that the compressor 12061 is used to compress the low-temperature, low-pressure gas in the gas-liquid separation component 1205 and output high-temperature, high-pressure refrigerant gas. It can be understood that the compressor 12061 is used to compress the low-temperature, low-pressure gas in the gas-liquid separator and output high-temperature, high-pressure refrigerant gas.

[0041] In the embodiment of the present application, the first heat exchange component 1101 includes a heat exchanger for exchanging heat with the refrigerant in the first-stage circulation loop 11 .

[0042] It should be noted that the first heat exchange component 1101 includes a heat exchanger, which can be understood as the first heat exchange component 1101 being a heat exchanger. The specific model of the heat exchanger can be determined according to actual conditions and is not limited here. The heat exchanger is used to exchange heat with the refrigerant in the first-stage circulation loop 11.

[0043] In an embodiment of the present application, the first fluorine pump assembly 1104 includes a second fluorine pump 11041, a third fluorine pump 11042, a fourth one-way valve 11043 and a fifth one-way valve 11044. The second fluorine pump 11041 and the fourth one-way valve 11043 connected in series are connected in parallel with the third fluorine pump 11042 and the fifth one-way valve 11044 connected in series; the second fluorine pump 11041 and the third fluorine pump 11042 are used as power sources to allow cold air to flow to the second evaporation assembly 1106.

[0044] It should be noted that the second fluorine pump 11041 and the fourth one-way valve 11043 connected in series are connected in parallel with the third fluorine pump 11042 and the fifth one-way valve 11044 connected in series; it can be understood that the second fluorine pump 11041 and the fourth one-way valve 11043 are connected in series, the third fluorine pump 11042 and the fifth one-way valve 11044 are connected in series, and the second fluorine pump 11041 and the fourth one-way valve 11043 connected in series are connected in parallel with the third fluorine pump 11042 and the fifth one-way valve 11044 connected in series.

[0045] The second fluorine pump 11041 and the third fluorine pump 11042 are used as power sources to make the cold flow to the second evaporation component 1106; it can be illustrated that the second fluorine pump 11041 and the third fluorine pump 11042 serve as power sources for the refrigeration system to make the cold flow to the second-stage evaporator.

[0046] The solution of the embodiment of the present application is to re-flow the small amount of refrigerant output from the second-stage circulation loop into the plate heat exchanger, forming a countercurrent with the refrigerant flowing out of the original condenser, and perform heat exchange in the plate heat exchanger to cool the refrigerant in the main flow path. After the refrigerant in the main flow path exchanges heat with the refrigerant in the branch flow path, a supercooling effect is achieved. After having a supercooled degree, it enters the fluorine pump through the liquid storage tank, avoiding the occurrence of cavitation, protecting the fluorine pump, and improving the stability and reliability of the entire fluorine pump dual-circulation refrigeration system.

[0047] The present application also provides a fluorine pump multi-refrigeration method for a data center, which is applied to the above-mentioned fluorine pump multi-refrigeration system for a data center. Figure 6 A schematic diagram of a flow chart of a fluorine pump multi-cooling method for a data center provided in an embodiment of the present application; Figure 6 As shown, the method includes:

[0048] S601. When the first expansion valve is controlled to be on, each cold source module in the second-stage circulation loop generates cold energy, and conducts the cold energy to the first-stage circulation loop at the thermal coupling point, so that the second evaporation component provides cold energy to the load.

[0049] It should be noted that the meanings of the first expansion valve, the second-stage circulation loop, the cold source module, the first-stage circulation loop and the second evaporation component have been explained above and will not be repeated here.

[0050] Among them, when the first expansion valve is controlled to be in conduction, each cold source module in the second-stage circulation loop generates cold energy, and the cold energy is heat-transferred to the first-stage circulation loop at the thermal coupling point, so that the second evaporation component provides cold energy to the load; it can be illustrated by an example that when the controller in the fluorine pump multi-connected refrigeration system used in the data center controls the first expansion valve to be in conduction, each cold source module in the second-stage circulation loop generates cold energy, and the cold energy is heat-transferred to the first-stage circulation loop at the thermal coupling point, so that the second evaporation component (second-stage evaporator) provides cold energy to the load.

[0051] In an embodiment of the present application, the method further includes: controlling the second expansion valve to be in conduction so that the refrigerant flowing out of the first condenser is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the branch refrigerant is throttled by the second expansion valve to form a temperature difference refrigerant with the refrigerant flowing out of the first condenser; or, controlling the second expansion valve to be in conduction so that the refrigerant flowing out of the first condenser is divided into two branches, one branch is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the other branch is throttled by the second expansion valve to form a temperature difference refrigerant with the branch refrigerant.

[0052] It should be noted that the second expansion valve is controlled to be in conduction, so that the refrigerant flowing out of the first condenser is divided after passing through the first plate heat exchanger to form a branch refrigerant. The branch refrigerant is throttled by the second expansion valve to form a temperature difference refrigerant with the refrigerant flowing out of the first condenser. Figure 2 or Figure 4 To explain, the controller in the fluorine pump multi-split refrigeration system controls the second expansion valve to be in conduction, so that the refrigerant flowing out of the first condenser is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the branch refrigerant is throttled by the second expansion valve to form a temperature difference refrigerant with the refrigerant flowing out of the first condenser.

[0053] It should be noted that the second expansion valve is controlled to be in conduction, so that the refrigerant flowing out of the first condenser is divided into two branches. One branch is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the other branch is throttled after passing through the second expansion valve to form a temperature difference refrigerant with the branch refrigerant. Figure 3 or Figure 5 To illustrate, the controller in the fluorine pump multi-split refrigeration system used in the data center controls the second expansion valve to be in conduction, so that the refrigerant flowing out of the first condenser is divided into two branches. One branch is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the other branch is throttled after passing through the second expansion valve to form a temperature difference refrigerant with the branch refrigerant.

[0054] The present application also provides a fluorine pump multi-connected refrigeration device for use in a data center, and a fluorine pump multi-connected refrigeration system for use in a data center; Figure 7This is a schematic diagram of the structure of a fluorine pump multi-connected refrigeration device for a data center provided in an embodiment of the present application; Figure 7 As shown, a fluorine pump multi-split refrigeration device 700 used in a data center includes:

[0055] The control unit 701 is used to control each cold source module in the second-stage circulation loop to generate cold energy when the first expansion valve is turned on, and to conduct the cold energy to the first-stage circulation loop at the thermal coupling point so that the second evaporation component provides cold energy to the load.

[0056] Optionally, the control unit 701 is also used to control the second expansion valve to be turned on, so that the refrigerant flowing out of the first condenser is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the branch refrigerant is throttled by the second expansion valve to form a temperature difference refrigerant with the refrigerant flowing out of the first condenser; or, the second expansion valve is controlled to be turned on, so that the refrigerant flowing out of the first condenser is divided into two branches, one branch is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the other branch is throttled by the second expansion valve to form a temperature difference refrigerant with the branch refrigerant.

[0057] The present application also provides a fluorine pump multi-connected refrigeration device for use in a data center. Figure 8 This is a structural diagram of a fluorine pump multi-connected refrigeration device for use in a data center provided in an embodiment of the present application; Figure 8 As shown, the fluorine pump multi-split refrigeration device 800 applied to a data center includes: a processor 801 and a memory 803 . Optionally, the fluorine pump multi-split refrigeration device 800 applied to a data center may further include a communication bus 802 .

[0058] In a specific embodiment, the processor 801 may be at least one of an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a CPU, a controller, a microcontroller, and a microprocessor. It is understood that for different devices, the electronic device used to implement the above-mentioned processor functions may also be other electronic devices, which is not specifically limited in this embodiment.

[0059] In the embodiment of the present application, the communication bus 802 is used to realize the connection and communication between the processor 801 and the memory 803; when the processor 801 executes the operating program stored in the memory 803, the following fluorine pump multi-connected refrigeration method applied to the data center is realized:

[0060] When the first expansion valve is controlled to be in conduction, each cold source module in the second-stage circulation loop generates cold energy, which is thermally transferred to the first-stage circulation loop at the thermal coupling point, so that the second evaporation component provides cold energy to the load.

[0061] Furthermore, the processor 801 is also used to control the second expansion valve to be in conduction, so that the refrigerant flowing out of the first condenser is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the branch refrigerant is throttled by the second expansion valve to form a temperature difference refrigerant with the refrigerant flowing out of the first condenser; or, control the second expansion valve to be in conduction, so that the refrigerant flowing out of the first condenser is divided into two branches, one branch is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the other branch is throttled by the second expansion valve to form a temperature difference refrigerant with the branch refrigerant.

[0062] An embodiment of the present application provides a storage medium having a computer program stored thereon. The computer-readable storage medium stores one or more programs, which can be executed by one or more processors. The computer program implements the fluorine pump multi-connected refrigeration method applied to a data center as described above.

[0063] Based on the above embodiments, embodiments of the present application provide a computer program product, including a computer program, which can be executed by one or more processors. The computer program implements the above-mentioned fluorine pump multi-cooling method applied to a data center.

[0064] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0065] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the relevant technology, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling an image display device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present disclosure.

[0066] The above description is merely a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application.

Claims

1. A fluorine pump multi-connected refrigeration system used in a data center, characterized in that: The system comprises: a first-stage circulation loop, a second-stage circulation loop and a control component that are thermally coupled; wherein, The first-stage circulation loop includes: at least one terminal device, each of which is a circulation loop formed by connecting a first heat exchange component, a first evaporation component, a first liquid storage component, a first fluorine pump component, a first expansion valve, and a second evaporation component; The second-stage circulation loop includes: at least one cold source module, each of which is a circulation loop formed by connecting a first condensing component, a first supercooling component, a second liquid storage component, a second fluorine pump component, the first evaporation component, a gas-liquid separation component, and a compression component; The control component is respectively connected to the first expansion valve, the first fluorine pump component, and the second fluorine pump component, and is used to control each cold source module in the second-stage circulation loop to generate cold energy when the first expansion valve is turned on, and to conduct the cold energy to the first-stage circulation loop at the thermal coupling point, so that the second evaporation component provides cold energy to the load.

2. The system according to claim 1, wherein: The first condensing assembly includes a first condenser; the first subcooling assembly includes a second expansion valve and a first plate heat exchanger; the first plate heat exchanger is respectively connected to the first condenser, the second expansion valve, the second liquid storage assembly, and the gas-liquid separation assembly; the second expansion valve is connected to the gas-liquid separation assembly; and the control assembly is connected to the second expansion valve; The control component is also used to control the second expansion valve to be in conduction, so that the refrigerant flowing out of the first condenser is diverted after passing through the first plate heat exchanger to form a branch refrigerant. The branch refrigerant is throttled by the second expansion valve and forms a temperature difference refrigerant with the refrigerant flowing out of the first condenser.

3. The system according to claim 1, wherein: The first condensing assembly includes a first condenser; the first subcooling assembly includes a second expansion valve and a first plate heat exchanger; the first plate heat exchanger is respectively connected to the first condenser, the second expansion valve, the second liquid storage assembly, and the gas-liquid separation assembly; the second expansion valve is connected to the first condenser; and the control assembly is connected to the second expansion valve. The control component is also used to control the second expansion valve to be in conduction, so that the refrigerant flowing out of the first condenser is divided into two branches. One branch is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the other branch is throttled after passing through the second expansion valve to form a temperature difference refrigerant with the branch refrigerant.

4. The system according to claim 2 or 3, characterized in that The second fluorine pump assembly includes a first fluorine pump, a first one-way valve and a third expansion valve. The first fluorine pump and the first one-way valve are connected in parallel and then connected in series with the third expansion valve. The control assembly is connected to the first fluorine pump and the third expansion valve respectively. The control component is used to control the first fluorine pump to provide power for the second-stage circulation loop and to control the third expansion valve to be in a conducting state; The first one-way valve is used to allow the refrigerant in the second liquid storage component to flow to the first evaporation component.

5. The system according to claim 4, characterized in that The first evaporation component includes a first evaporator; the first evaporator is respectively connected to the third expansion valve, the gas-liquid separation component, and the first liquid storage component; The first evaporator is used to perform heat exchange between the refrigerant and the external air.

6. The system according to claim 5, characterized in that The compression assembly includes a compressor, a second one-way valve, a third one-way valve, and a fourth expansion valve; the compressor is connected in series with the second one-way valve and the fourth expansion valve, and then connected in parallel with the third one-way valve; the control assembly is connected to the fourth expansion valve; The control component is further used to control the third expansion valve to be in a conducting state; The compressor is used to compress the low-temperature and low-pressure gas in the gas-liquid separation component and output high-temperature and high-pressure refrigerant gas.

7. The system according to claim 6, characterized in that The first heat exchange component includes a heat exchanger for exchanging heat with the refrigerant in the first-stage circulation loop.

8. The system according to claim 7, characterized in that The first fluorine pump assembly includes a second fluorine pump, a third fluorine pump, a fourth one-way valve and a fifth one-way valve, wherein the second fluorine pump and the fourth one-way valve connected in series are connected in parallel with the third fluorine pump and the fifth one-way valve connected in series; The second fluorine pump and the third fluorine pump are used as power sources to allow the cold air to flow to the second evaporation component.

9. A fluorine pump multi-connected refrigeration method used in a data center, characterized in that: Applicable to the fluorine pump multi-connected refrigeration system according to any one of claims 1 to 8; the method comprises: When the first expansion valve is controlled to be in conduction, each cold source module in the second-stage circulation loop generates cold energy, which is thermally transferred to the first-stage circulation loop at the thermal coupling point, so that the second evaporation component provides cold energy to the load.

10. The method according to claim 9, characterized in that The method further comprises: Control the second expansion valve to be in conduction, so that the refrigerant flowing out of the first condenser is split after passing through the first plate heat exchanger to form a branch refrigerant, and the branch refrigerant is throttled by the second expansion valve to form a temperature difference refrigerant with the refrigerant flowing out of the first condenser; or, The second expansion valve is controlled to be in conduction, so that the refrigerant flowing out of the first condenser is divided into two branches. One branch is diverted after passing through the first plate heat exchanger to form a branch refrigerant, and the other branch is throttled after passing through the second expansion valve to form a temperature difference refrigerant with the branch refrigerant.

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