A low-temperature absorption type single-medium phase change liquid cooling heat exchange management method and device

Abstract

The application discloses a low-temperature absorption type single-medium phase change liquid cooling heat exchange pipe control method and device, and the method comprises the following steps: when it is determined that the temperature of a target heat exchange medium is in a target medium temperature interval, performing a first heat exchange operation on a target heating device according to a first heat exchange device and the target heat exchange medium, and converting a first conversion medium, the first heat exchange operation is used for controlling the device surface temperature of the target heating device at a preset constant temperature; performing a second heat exchange operation on the first conversion medium in a target filler area according to a second heat exchange device and a second conversion medium, and obtaining a corresponding heat exchange result; performing medium conveying and cooling treatment operations on the heat exchange result according to a preset medium state processing scheme, and obtaining a storage result corresponding to the heat exchange result and a cooling treatment result. It can be seen that the application can realize the heat exchange of the device and the medium through different phase change forms of a single medium, and is favorable for improving the heat exchange effect of the device.

Description

Technical Field

[0001] This invention relates to the field of equipment temperature control technology, and in particular to a low-temperature absorption single-medium phase change liquid cooling heat exchange control method and device. Background Technology

[0002] As equipment is upgraded and updated, the power density of data center equipment is increasing. In order to maintain the normal operation of the equipment, it is usually required to control the surface temperature of the equipment components below 55℃ (some components, such as the CPU, require control at 80℃ when running at full load) in order to maintain the normal operation of the equipment and extend its service life.

[0003] As equipment heat dissipation increases, simple air cooling is no longer sufficient to meet the heat dissipation needs of high heat density devices, and liquid cooling is gradually gaining popularity. However, the electronic components of computer room equipment are generally not allowed to come into contact with conductive liquids such as water. Therefore, existing technologies mostly employ indirect heat exchangers to dissipate heat, but this technology has relatively poor heat exchange efficiency. Based on this indirect heat exchange concept, many similar products have been developed, such as using multiple indirect heat exchangers in series. While this improves the heat exchange effect somewhat, its effectiveness remains extremely limited. Therefore, providing a method to improve heat exchange efficiency is particularly important. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a low-temperature absorption type single-medium phase change liquid cooling heat exchange control method and device, which can realize heat exchange between the device and the medium through different phase change forms of a single medium, which is beneficial to improving the heat exchange effect of the device.

[0005] To address the aforementioned technical problems, the first aspect of this invention discloses a low-temperature absorption-type single-medium phase change liquid-cooled heat transfer control method, the method comprising:

[0006] When the temperature of the target heat exchange medium is detected to be within the target medium temperature range, a first heat exchange operation is performed on the target heating device according to the first heat exchange device and the target heat exchange medium to obtain the first-level conversion medium corresponding to the target heat exchange medium. The first heat exchange operation is used to control the surface temperature of the target heating device at a preset constant temperature.

[0007] Based on the second heat exchange device and the secondary conversion medium, a second heat exchange operation is performed on the primary conversion medium in the determined target packing area to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium. The medium temperature of the secondary conversion medium is lower than that of the primary conversion medium, and the secondary conversion medium and the primary conversion medium are the same medium.

[0008] According to the preset medium state processing scheme, the heat exchange result is subjected to medium transportation and cooling processing operations to obtain the liquid storage result and cooling processing result corresponding to the heat exchange result.

[0009] As an optional implementation, in the first aspect of the present invention, the step of performing a first heat exchange operation on the target heating device based on the first heat exchange device and the target heat exchange medium to obtain a primary conversion medium corresponding to the target heat exchange medium includes:

[0010] Based on the collected device temperature of the target heating device, determine the medium consumption parameters required to adjust the device temperature to a preset constant temperature through the target heat exchange medium. The medium consumption parameters include the medium consumption amount and / or the delivery rate of the target heat exchange medium per unit time for a preset cooling.

[0011] According to the first heat exchange device, the target heat exchange medium is transferred to the liquid distribution device, the liquid distribution device includes at least one conveying channel and at least one liquid distribution area, and each conveying channel corresponds to at least one liquid distribution area;

[0012] Based on the delivery channel corresponding to the target heating device, the target heat exchange medium is delivered to the device partition corresponding to the target heating device according to the delivery amount corresponding to the medium consumption parameters;

[0013] Based on the target heat exchange medium, a first heat exchange operation is performed on the target heating device to obtain a primary conversion medium corresponding to the target heat exchange medium. The primary conversion medium is a gaseous medium obtained by absorbing heat and vaporizing the liquid target heat exchange medium.

[0014] As an optional implementation, in the first aspect of the present invention, the step of performing a second heat exchange operation on the primary conversion medium in a determined target packing region based on the second heat exchange device and the secondary conversion medium to obtain the heat exchange result corresponding to the primary conversion medium and the secondary conversion medium includes:

[0015] When the primary conversion medium is detected, the primary conversion medium is transported to the target packing area through the circulating air pipe connected to the device partition corresponding to the target heating device;

[0016] The second heat exchanger performs a temperature adjustment operation on the target heat exchange medium to obtain a secondary conversion medium whose medium temperature is within the second medium temperature range, and then transports the secondary conversion medium to the target packing area through the second heat exchanger.

[0017] Based on the secondary conversion medium, a second heat exchange operation is performed on the primary conversion medium to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium.

[0018] As an optional implementation, in the first aspect of the present invention, the heat exchange result corresponding to the primary conversion medium and the secondary conversion medium includes a first liquid medium and a second liquid medium after the secondary conversion medium absorbs heat, wherein the first liquid medium is the medium after the primary conversion medium is condensed and liquefied, and the medium temperature of the first liquid medium is lower than the medium temperature of the second liquid medium;

[0019] The step of performing medium transport and cooling operations on the heat exchange result according to a preset medium state processing scheme to obtain the corresponding liquid storage result and cooling result includes:

[0020] According to the preset medium state processing scheme, the first liquid medium is transported to the storage zone corresponding to the first liquid medium, which is used as the storage result corresponding to the first liquid medium;

[0021] According to the preset medium state processing scheme, the second liquid medium is subjected to a cooling process through a third heat exchange device and a preset cooling medium, so that the medium temperature of the second liquid medium is adjusted to the first medium temperature range, which is taken as the cooling process result of the second liquid medium.

[0022] As an optional implementation, in the first aspect of the present invention, the method further includes:

[0023] Collect pipeline temperature data and pipeline pressure data corresponding to the return gas pipeline, wherein the return gas pipeline is the pipeline through which the first heat exchange device transmits the target heat exchange medium to the liquid separation device;

[0024] Determine whether the pipe temperature data is within the preset saturation temperature threshold. When it is determined that the pipe temperature data is outside the saturation temperature threshold, according to the determined incremental control scheme, perform a first incremental control operation on the first heat exchanger within the frequency conversion range corresponding to the first heat exchanger to adjust the pipe temperature data to within the saturation temperature threshold.

[0025] Calculate the pressure difference between the pipeline pressure data and the standard air pressure value, and determine whether the pressure difference is greater than or equal to a preset pressure difference threshold. If the determination result is yes, according to the incremental control scheme, perform a second incremental control operation on the second heat exchanger within the frequency conversion range corresponding to the second heat exchanger, so that the pressure difference is adjusted to be less than the preset pressure difference threshold.

[0026] As an optional implementation, in the first aspect of the invention, before detecting the temperature of the target heat exchange medium, the method further includes:

[0027] Determine whether the cooling medium meets the cooling conditions for performing the cooling operation on the heat exchange medium. If it is determined that the cooling medium does not meet the cooling conditions for performing the cooling operation on the heat exchange medium, adjust the temperature of the cooling medium until it is determined that the cooling medium meets the cooling conditions. Then, control the second heat exchange device to operate according to the preset initial operating mode so that the target heat exchange medium and the cooling medium form convective heat exchange.

[0028] Determine whether the collected liquid pipe temperature of the lifting liquid pipe matches the preset subcooling state temperature. When it is determined that the liquid pipe temperature matches the subcooling state temperature, trigger the execution of detecting the medium temperature of the target heat exchange medium. After detecting that the medium temperature of the target heat exchange medium is within the first medium temperature range, trigger the execution of performing the first heat exchange operation on the target heating device according to the first heat exchange device and the target heat exchange medium to obtain the first-level conversion medium corresponding to the target heat exchange medium.

[0029] The lifting liquid pipe is a liquid delivery pipe that connects to the second heat exchanger.

[0030] As an optional implementation, in the first aspect of the present invention, the target heat exchange medium, the primary conversion medium, and the first liquid medium are all stored in different heat exchange zones of the same target medium heat exchange device, and the target heat exchange medium and the second liquid medium are ultimately stored in the same heat exchange zone through the medium circulation process adopted by the target medium heat exchange device.

[0031] The target heat exchange medium is located in a target zone where a liquid level detection device is corresponding to the target zone, so as to detect the medium storage of the target heat exchange medium in the target zone and maintain the normal operation of the first heat exchange device and the second heat exchange device in the target medium heat exchange equipment.

[0032] A second aspect of this invention discloses a low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control device, the device comprising:

[0033] The first heat exchange module is used to perform a first heat exchange operation on the target heating device according to the first heat exchange equipment and the target heat exchange medium when the medium temperature of the target heat exchange medium is detected to be within the target medium temperature range, so as to obtain the first-level conversion medium corresponding to the target heat exchange medium. The first heat exchange operation is used to control the surface temperature of the target heating device at a preset constant temperature.

[0034] The second heat exchange module is used to perform a second heat exchange operation on the primary conversion medium in a determined target packing area according to the second heat exchange equipment and the secondary conversion medium, to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium, wherein the medium temperature of the secondary conversion medium is lower than that of the primary conversion medium, and the secondary conversion medium and the primary conversion medium are the same medium.

[0035] The liquid storage and cooling module is used to perform medium transportation and cooling operations on the heat exchange results according to a preset medium state processing scheme, so as to obtain the liquid storage results and cooling results corresponding to the heat exchange results.

[0036] As an optional implementation, in a second aspect of the present invention, the method by which the first heat exchange module performs a first heat exchange operation on the target heating device based on the first heat exchange equipment and the target heat exchange medium to obtain the primary conversion medium corresponding to the target heat exchange medium specifically includes:

[0037] Based on the collected device temperature of the target heating device, determine the medium consumption parameters required to adjust the device temperature to a preset constant temperature through the target heat exchange medium. The medium consumption parameters include the medium consumption amount and / or the delivery rate of the target heat exchange medium per unit time for a preset cooling.

[0038] According to the first heat exchange device, the target heat exchange medium is transferred to the liquid distribution device, the liquid distribution device includes at least one conveying channel and at least one liquid distribution area, and each conveying channel corresponds to at least one liquid distribution area;

[0039] Based on the delivery channel corresponding to the target heating device, the target heat exchange medium is delivered to the device partition corresponding to the target heating device according to the delivery amount corresponding to the medium consumption parameters;

[0040] Based on the target heat exchange medium, a first heat exchange operation is performed on the target heating device to obtain a primary conversion medium corresponding to the target heat exchange medium. The primary conversion medium is a gaseous medium obtained by absorbing heat and vaporizing the liquid target heat exchange medium.

[0041] As an optional implementation, in a second aspect of the present invention, the second heat exchange module performs a second heat exchange operation on the primary conversion medium in a determined target packing region based on the second heat exchange device and the secondary conversion medium, and obtains the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium in the following specific ways:

[0042] When the primary conversion medium is detected, the primary conversion medium is transported to the target packing area through the circulating air pipe connected to the device partition corresponding to the target heating device;

[0043] The second heat exchanger performs a temperature adjustment operation on the target heat exchange medium to obtain a secondary conversion medium whose medium temperature is within the second medium temperature range, and then transports the secondary conversion medium to the target packing area through the second heat exchanger.

[0044] Based on the secondary conversion medium, a second heat exchange operation is performed on the primary conversion medium to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium.

[0045] As an optional implementation, in a second aspect of the present invention, the heat exchange result corresponding to the primary conversion medium and the secondary conversion medium includes a first liquid medium and a second liquid medium after the secondary conversion medium absorbs heat, wherein the first liquid medium is the medium after the primary conversion medium is condensed and liquefied, and the medium temperature of the first liquid medium is lower than the medium temperature of the second liquid medium;

[0046] The liquid storage cooling module performs medium transport and cooling operations on the heat exchange results according to a preset medium state processing scheme. The specific methods for obtaining the corresponding liquid storage results and cooling results include:

[0047] According to the preset medium state processing scheme, the first liquid medium is transported to the storage zone corresponding to the first liquid medium, which is used as the storage result corresponding to the first liquid medium;

[0048] According to the preset medium state processing scheme, the second liquid medium is subjected to a cooling process through a third heat exchange device and a preset cooling medium, so that the medium temperature of the second liquid medium is adjusted to the first medium temperature range, which is taken as the cooling process result of the second liquid medium.

[0049] As an optional implementation, in a second aspect of the invention, the apparatus further includes:

[0050] The acquisition module is used to acquire pipeline temperature data and pipeline pressure data corresponding to the return gas pipeline, wherein the return gas pipeline is the pipeline through which the first heat exchange device transmits the target heat exchange medium to the liquid separation device.

[0051] The judgment module is used to determine whether the pipe temperature data is within a preset saturation temperature threshold.

[0052] The incremental control module is used to perform a first incremental control operation on the first heat exchanger within the frequency conversion range corresponding to the first heat exchanger, according to the determined incremental control scheme, when it is determined that the pipeline temperature data is outside the saturation temperature threshold, so as to adjust the pipeline temperature data to within the saturation temperature threshold.

[0053] The calculation module is used to calculate the pressure difference between the pipeline pressure data and the standard air pressure value;

[0054] The judgment module is also used to determine whether the pressure difference is greater than or equal to a preset pressure difference threshold.

[0055] The incremental control module is further configured to, when the judgment module determines that the pressure difference is greater than or equal to the preset pressure difference threshold, perform a second incremental control operation on the second heat exchanger within the frequency conversion range corresponding to the second heat exchanger according to the incremental control scheme, so as to adjust the pressure difference to be less than the preset pressure difference threshold.

[0056] As an optional implementation, in a second aspect of the present invention, the judgment module is further configured to determine whether the cooling medium meets the cooling conditions for performing a cooling operation on the heat exchange medium before detecting the medium temperature of the target heat exchange medium.

[0057] The device further includes:

[0058] The adjustment control module is used to adjust the temperature of the cooling medium until it is determined that the cooling medium meets the cooling conditions for performing the cooling operation on the heat exchange medium to be exchanged, and then control the second heat exchange device to operate according to the preset initial operation mode so that the target heat exchange medium and the cooling medium form convective heat exchange.

[0059] The judgment module is also used to judge whether the collected liquid pipe temperature of the lifting liquid pipe matches the preset supercooled state temperature. When it is judged that the liquid pipe temperature matches the supercooled state temperature, the module triggers the execution of detecting the medium temperature of the target heat exchange medium. After detecting that the medium temperature of the target heat exchange medium is within the first medium temperature range, the module triggers the execution of performing the first heat exchange operation on the target heating device according to the first heat exchange device and the target heat exchange medium to obtain the first-level conversion medium corresponding to the target heat exchange medium.

[0060] The lifting liquid pipe is a liquid delivery pipe that connects to the second heat exchanger.

[0061] As an optional implementation, in a second aspect of the present invention, the target heat exchange medium, the primary conversion medium, and the first liquid medium are all stored in different heat exchange zones of the same target medium heat exchange device, and the target heat exchange medium and the second liquid medium are ultimately stored in the same heat exchange zone through the medium circulation process adopted by the target medium heat exchange device.

[0062] The target heat exchange medium is located in a target zone where a liquid level detection device is corresponding to the target zone, so as to detect the medium storage of the target heat exchange medium in the target zone and maintain the normal operation of the first heat exchange device and the second heat exchange device in the target medium heat exchange equipment.

[0063] A third aspect of this invention discloses another low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control device, the device comprising:

[0064] Memory containing executable program code;

[0065] A processor coupled to the memory;

[0066] The processor calls the executable program code stored in the memory to execute the low-temperature absorption single-medium phase change liquid-cooled heat exchange control method disclosed in the first aspect of the present invention.

[0067] The fourth aspect of the present invention discloses a computer-readable storage medium storing computer instructions, which, when invoked, are used to execute the low-temperature absorption single-medium phase change liquid-cooled heat exchange control method disclosed in the first aspect of the present invention.

[0068] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0069] This invention provides a method for controlling liquid-cooled heat exchange in a low-temperature absorption-type single-medium phase change process. The method includes: when the temperature of the target heat exchange medium is detected to be within the target medium temperature range, performing a first heat exchange operation on the target heating device based on a first heat exchange device and the target heat exchange medium to obtain a primary conversion medium corresponding to the target heat exchange medium. The first heat exchange operation is used to control the surface temperature of the target heating device at a preset constant temperature. Performing a second heat exchange operation on the primary conversion medium in a determined target packing area based on a second heat exchange device and a secondary conversion medium to obtain heat exchange results corresponding to the primary and secondary conversion media. The temperature of the secondary conversion medium is lower than that of the primary conversion medium, and the secondary conversion medium and the primary conversion medium are the same medium. Performing medium transport and cooling operations on the heat exchange results according to a preset medium state processing scheme to obtain liquid storage results and cooling results corresponding to the heat exchange results. As can be seen, implementing this invention, by designing a primary and secondary high-efficiency energy-saving heat exchange device, isolates the target heat-generating device from direct contact with cooling water. It utilizes thermosiphon and a liquid pump to drive the fluorinated liquid, combining absorption and phase change heat transfer to enhance heat exchange on both sides. After heat exchange in the heat-generating electronic device, the gaseous fluorinated liquid and the cooled liquid fluorinated liquid undergo contact heat exchange, fully utilizing the principle of similar solubility in organic matter to assist the gaseous medium in entering the liquid medium for liquefaction. Compared to traditional heat exchange through the heat exchanger surface, this method has higher heat exchange efficiency. Secondly, the liquid fluorinated liquid at the bottom exchanges with the cooling water through the heat exchanger surface for liquid-liquid heat exchange, which, compared to gas-liquid (gaseous fluorinated liquid - cooling water), fully utilizes the heat exchange surface area and improves heat exchange efficiency. Attached Figure Description

[0070] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0071] Figure 1 This is a schematic flowchart of a low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control method disclosed in an embodiment of the present invention.

[0072] Figure 2 This is a schematic flowchart of another low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control method disclosed in an embodiment of the present invention.

[0073] Figure 3 This is a schematic diagram of the structure of a low-temperature absorption type single-medium phase change liquid-cooled heat exchange control device disclosed in an embodiment of the present invention;

[0074] Figure 4This is a schematic diagram of another low-temperature absorption type single-medium phase change liquid-cooled heat exchange control device disclosed in an embodiment of the present invention.

[0075] Figure 5 This is a schematic diagram of the structure of another low-temperature absorption type single-medium phase change liquid-cooled heat exchange control device disclosed in the embodiments of the present invention.

[0076] Figure 6 This is a schematic diagram of the architecture applicable to a low-temperature absorption single-medium phase change liquid-cooled heat exchange control method disclosed in an embodiment of the present invention.

[0077] Figure 7 This is a schematic diagram of the architecture applicable to another low-temperature absorption single-medium phase change liquid cooling heat exchange control method disclosed in the embodiments of the present invention. Detailed Implementation

[0078] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0079] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product, or end that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0080] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0081] This invention discloses a low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control method and device. By designing a primary and secondary high-efficiency energy-saving heat exchange device, direct contact between the target heat-generating device and the cooling water is isolated. Utilizing thermosiphon and a liquid pump to drive the fluorinated liquid, combined with the application of absorption and phase change heat exchange, double-sided heat exchange is enhanced. After heat exchange in the heat-generating electronic device, the gaseous fluorinated liquid and the cooled liquid fluorinated liquid undergo contact heat exchange, fully utilizing the principle of similar solubility of organic matter to assist the liquefaction of the gaseous medium into the liquid medium. Compared to traditional heat exchange through the heat exchanger surface, this method has higher heat exchange efficiency. Secondly, the liquid fluorinated liquid at the bottom exchanges with the cooling water through the heat exchanger surface for liquid-liquid heat exchange, which, compared to gas-liquid (gaseous fluorinated liquid-cooling water), fully utilizes the heat exchange surface area and improves heat exchange efficiency. Detailed descriptions follow.

[0082] Example 1

[0083] Please see Figure 1 , Figure 6 as well as Figure 7 , Figure 1 This is a schematic flowchart of a low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control method disclosed in an embodiment of the present invention. Figure 6 This is a schematic diagram of the architecture applicable to a low-temperature absorption single-medium phase change liquid-cooled heat exchange control method disclosed in an embodiment of the present invention. Figure 7 This is a schematic diagram of the architecture applicable to another low-temperature absorption-type single-medium phase change liquid-cooled heat transfer control method disclosed in this embodiment of the invention. Wherein, Figure 1 The described low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control method can be applied to low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control devices, and the embodiments of this invention are not limited thereto. Figure 1 As shown, the low-temperature absorption single-medium phase change liquid-cooled heat transfer control method may include the following operations:

[0084] 101. When the temperature of the target heat exchange medium is detected to be within the target medium temperature range, the first heat exchange operation is performed on the target heat-generating device according to the first heat exchange equipment and the target heat exchange medium to obtain the first-level conversion medium corresponding to the target heat exchange medium.

[0085] In this embodiment of the invention, the first heat exchange operation is used to control the surface temperature of the target heating device at a preset constant temperature.

[0086] In this embodiment of the invention, the target heat exchange medium can be an electronic fluorinated liquid, a refrigerant, or other medium that meets the requirements of phase change at normal pressure and temperature; in this case, the target heat exchange medium is in a liquid state.

[0087] In embodiments of the present invention, such as Figure 6 As shown, the first heat exchange device can be a liquid supply pump pump1.

[0088] 102. Based on the second heat exchange equipment and the secondary conversion medium, perform the second heat exchange operation on the primary conversion medium in the determined target packing area to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium.

[0089] In this embodiment of the invention, the temperature of the secondary conversion medium is lower than that of the primary conversion medium, and the secondary conversion medium and the primary conversion medium are the same medium.

[0090] In embodiments of the present invention, such as Figure 6 As shown, the second heat exchange device can be a circulating booster pump 2.

[0091] In this embodiment of the invention, step 102, based on the second heat exchange device and the secondary conversion medium, performs a second heat exchange operation on the primary conversion medium in the determined target packing region to obtain the heat exchange results corresponding to the primary and secondary conversion media, including:

[0092] When the primary conversion medium is detected, the primary conversion medium is transported to the target packing area through the circulating gas pipe connected to the device partition corresponding to the target heating device;

[0093] The second heat exchanger performs a temperature adjustment operation on the target heat exchange medium to obtain a secondary conversion medium whose medium temperature is within the second medium temperature range, and then transports the secondary conversion medium to the target packing area through the second heat exchanger.

[0094] Based on the secondary conversion medium, a second heat exchange operation is performed on the primary conversion medium to obtain the heat exchange results corresponding to the primary and secondary conversion media.

[0095] 103. Based on the preset medium state processing scheme, perform medium transportation and cooling processing operations on the heat exchange results to obtain the corresponding liquid storage results and cooling processing results.

[0096] In the embodiments of this invention, please refer to Figure 6 , Figure 7 The following is a schematic diagram of the architecture. For ease of understanding, the specific circulation process of the liquid-cooled heat exchange control for this low-temperature absorption single-medium phase change system is explained below:

[0097] ① When it is determined that the fluorinated liquid on the secondary side is in a low-temperature subcooled state (the medium temperature is in the first medium temperature range), the low-temperature subcooled fluorinated liquid is transported to the machine room (where the target heat-generating device is located) by the liquid supply pump pump1.

[0098] ②Then, the liquid is passed through the server's target heating devices (requiring a constant temperature of 55°C) via a liquid separator, thereby using the fluorinated liquid to exchange heat and cool down the target heating devices.

[0099] ③ The fluorinated liquid absorbs heat, vaporizes, and is superheated to obtain a primary conversion medium. It enters the packing zone through the lower inlet of the absorption tank via the circulating gas pipe. At the same time, the circulating lift pump 2 lifts the low-temperature subcooled fluorinated liquid (about 40°C) from the bottom to the top of the absorption tank. After passing through a simple distributor, it flows into the porous packing zone.

[0100] ④ At this time, the superheated phase change gas (primary conversion medium) of the fluorinated liquid and the low-temperature fluorinated liquid (secondary conversion medium, about 40°C) exchange heat while in contact and absorption in the porous packing area;

[0101] ⑤ The superheated phase change gas condenses and liquefies, then enters the bottom storage section together; after heating, the temperature does not exceed the boiling point, and the unvaporized fluorinated liquid exchanges heat with cold water (primary side) through the bottom heat exchanger to cool down, reaching a subcooled state and completing the cycle.

[0102] In the embodiments of this invention, please refer to Figure 6 , Figure 7 Throughout the entire cyclic heat absorption operation, it is essential to ensure that the overall system stores at least a certain amount of phase change medium (PCM) liquid. To guarantee the safe operation of the system and equipment, a safety valve is installed at the top of the tank according to the design pressure. The top of the tank is equipped with an evacuation port for initially removing non-condensable gases from the system, a pressure measuring port, a circulating liquid distribution inlet, and a backup filling port. The bottom of the tank has a liquid supply pump outlet, a circulating booster pump outlet, a coolant inlet and outlet for the built-in high-efficiency heat exchanger, as well as a temperature measuring port, a level gauge interface, and a vent. The middle section has a vapor phase distributor inlet, and there is a packing area and inspection holes between the vapor and liquid phase distributors. The packing material is a non-reactive metal or rubber material to avoid contaminating the PCM.

[0103] In the embodiments of this invention, please refer to Figure 6 , Figure 7 For ease of analysis, the temperature of each pipe section is considered at the pipe outlet. The temperature inside the absorption tank is divided into five temperature zones from bottom to top: A, B, C, D, and the supply pipe temperature E, for a total of five temperature zones. Zone A contains the liquid fluorinated liquid, which has been cooled to a subcooled state by cooling water; Zone B contains the liquid fluorinated liquid after the vapor and liquid phases have been absorbed and mixed in the packing material and heated; Zone C contains the fluorinated liquid that has been vaporized after being heated by the heating electronic device; Zone D contains the liquid fluorinated liquid from Zone A that has been slightly heated after being transported by the circulating booster pump 2; and Zone E contains the liquid fluorinated liquid from Zone A that has been slightly heated after being transported by the supply pump 1.

[0104] In the embodiments of this invention, please refer to Figure 6 , Figure 7 To facilitate the monitoring of various data points in this circulating heat exchange system, at least the following monitoring points should be set up, including:

[0105] A temperature sensor T1 is installed in the liquid storage area of ​​the absorption condenser, and a liquid level L1 is installed in area A. A pressure sensor P1 is installed in the top gaseous area. A temperature sensor T4 and a pressure sensor P2 are installed on the return gas pipe at the heat exchange outlet of the evaporation end. The liquid supply pump pump1 and the circulating lift pump pump2 are frequency converter controlled, corresponding to VFD1 and VFD2 respectively. A temperature sensor T3 is installed on the liquid supply pipe after the liquid supply pump pump1, and a temperature sensor T2 is installed on the lift liquid pipe after the circulating lift pump pump2.

[0106] T1, T2, and T3 are used only for monitoring and protection against insufficient cooling water source; L1 is used for monitoring and protection against the minimum net positive suction head (NPSH) required to ensure the operation of the liquid supply pump and the circulating booster pump; P1 is the system pressure accumulation area and the possible accumulation area of ​​intrusive non-condensable gases, and is also the system pressure monitoring alarm point; additionally, mechanical protection devices such as manual venting, liquid drainage, and safety valve pressure relief are installed.

[0107] It should be noted that existing technologies mostly employ indirect heat exchange, which has relatively poor heat exchange efficiency. Even when multiple indirect heat exchangers are developed for series use based on this method, the improvement in heat exchange performance is not significant for most products. In this embodiment of the invention, the difference from absorption refrigeration lies in the fact that the absorbent and evaporator in absorption refrigeration are two different media. Absorption devices separate and absorb the media within the generator and absorber based on differences in solubility at different temperatures. In contrast, this embodiment of the invention involves two phase changes of the same medium, separated (phase change vaporization) and absorbed (phase change liquefaction) and mixed within the evaporator and absorption condenser. The technology used in this embodiment of the invention combines the principles of absorption refrigeration, using an atmospheric pressure phase change medium to combine the advantages of single-medium phase change refrigeration and absorption refrigeration, thereby improving the heat exchange effect.

[0108] It is evident that implementation Figure 1 The described low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control method, through the design of a primary and secondary high-efficiency energy-saving heat exchange device, isolates the target heat-generating device from direct contact with cooling water. It utilizes thermosiphon and a liquid pump to drive the fluorinated liquid, combining absorption and phase change heat exchange for enhanced heat exchange on both sides. After heat exchange in the heat-generating electronic device, the gaseous fluorinated liquid and the cooled liquid fluorinated liquid undergo contact heat exchange, fully utilizing the principle of similar dissolves like in organic matter to assist the gaseous medium in entering the liquid medium for liquefaction. Compared to traditional heat exchange through the heat exchanger surface, this method has higher heat exchange efficiency. Secondly, the liquid fluorinated liquid at the bottom exchanges with the cooling water through the heat exchanger surface for liquid-liquid heat exchange, which, compared to gas-liquid (gaseous fluorinated liquid-cooling water), fully utilizes the heat exchange surface area and improves heat exchange efficiency.

[0109] In an optional embodiment, the above-described first heat exchange operation performed on the target heat-generating device based on the first heat exchange device and the target heat exchange medium to obtain the primary conversion medium corresponding to the target heat exchange medium includes:

[0110] Based on the collected device temperature of the target heating device, determine the medium consumption parameters required to adjust the device temperature to the preset constant temperature through the target heat exchange medium. The medium consumption parameters include the medium consumption amount and / or the delivery rate of the target heat exchange medium per unit time for the preset cooling.

[0111] According to the first heat exchange device, the target heat exchange medium is transferred to the liquid separation device. The liquid separation device includes at least one conveying channel and at least one liquid separation area, and each conveying channel corresponds to at least one liquid separation area.

[0112] Based on the delivery channel corresponding to the target heat-generating device, the target heat exchange medium is delivered to the device partition corresponding to the target heat-generating device according to the delivery amount corresponding to the medium consumption parameters.

[0113] Based on the target heat exchange medium, the first heat exchange operation is performed on the target heat-generating device to obtain the primary conversion medium corresponding to the target heat exchange medium. The primary conversion medium is the gaseous medium obtained by absorbing heat and vaporizing the liquid target heat exchange medium.

[0114] As can be seen, in this optional embodiment, the amount of medium consumed and / or the medium delivery rate per unit time required to cool down the target heating device can be determined for the device temperature of each target heating device; thereby allocating the corresponding share of the target heat exchange medium to the liquid distribution area and device partition where the target heating device is located, thereby improving the accuracy of performing cooling operations on the target heating device.

[0115] Example 2

[0116] Please see Figure 2 , Figure 2 This is a schematic flowchart of another low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control method disclosed in an embodiment of the present invention. Figure 2 The described low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control method can be applied to low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control devices, and the embodiments of this invention are not limited thereto. Figure 2 As shown, the low-temperature absorption single-medium phase change liquid-cooled heat transfer control method may include the following operations:

[0117] 201. When the temperature of the target heat exchange medium is detected to be within the target medium temperature range, the first heat exchange operation is performed on the target heat-generating device according to the first heat exchange equipment and the target heat exchange medium to obtain the first-level conversion medium corresponding to the target heat exchange medium.

[0118] 202. Based on the second heat exchange equipment and the secondary conversion medium, perform the second heat exchange operation on the primary conversion medium in the determined target packing area to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium.

[0119] 203. Based on the preset medium state processing scheme, perform medium transportation and cooling processing operations on the heat exchange results to obtain the corresponding liquid storage results and cooling processing results.

[0120] For further descriptions of steps 201-203 in this embodiment of the invention, please refer to the other specific descriptions of steps 101-103 in Embodiment 1. These descriptions will not be repeated in this embodiment of the invention.

[0121] 204. Collect the pipe temperature data and pipe pressure data corresponding to the return gas pipe. The return gas pipe is the pipe through which the first heat exchange device transfers the target heat exchange medium to the liquid separator.

[0122] In this embodiment of the invention, the acquisition of pipeline temperature data and pipeline pressure data corresponding to the return gas pipeline can be performed during the second heat exchange operation on the primary conversion medium. Furthermore, since the cyclic heat exchange process is uninterrupted after initial startup, steps 204-208 are interspersed during the repeated execution of steps 201-203.

[0123] 205. Determine whether the pipeline temperature data is within the preset saturation temperature threshold.

[0124] 206. When it is determined that the pipeline temperature data is outside the saturation temperature threshold, according to the determined incremental control scheme, the first incremental control operation is performed on the first heat exchanger within the frequency conversion range corresponding to the first heat exchanger to adjust the pipeline temperature data to within the saturation temperature threshold.

[0125] 207. Calculate the pressure difference between the pipeline pressure data and the standard air pressure value, and determine whether the pressure difference is greater than or equal to the preset pressure difference threshold.

[0126] 208. When it is determined that the pressure difference is greater than or equal to the preset pressure difference threshold, according to the incremental control scheme, the second incremental control operation is performed on the second heat exchanger within the frequency conversion range corresponding to the second heat exchanger, so as to adjust the pressure difference to be less than the preset pressure difference threshold.

[0127] In the embodiments of this invention, please refer to Figure 6 , Figure 6 The temperature data of the pipeline is collected by temperature sensor T4 and pressure data of pipeline are collected by pressure sensor P2 at the location of zone E in the middle.

[0128] In this embodiment of the invention, in the actual circulating heat exchange process, it is necessary to ensure that the deviation between the pipeline gas pressure data at P2 and atmospheric pressure (the medium can change phase at normal pressure) does not exceed 5 kPa (currently, the pressure of P2 is controlled to be 0-5 kPa). At this time, the pressure in the system is controlled by rapidly condensing and liquefying the gaseous fluorinated liquid to reduce the gas volume, that is, it is necessary to strengthen the cooling side to transfer the heat out.

[0129] In this embodiment of the invention, for the sake of simplicity, the analysis focuses only on data when the primary side is constantly supplied with cooling water to meet the rated heat exchange requirements, i.e., the cooling water can maintain the temperature of zone A to meet the design requirements (subcooled 6K, or lower). Therefore, to maintain continuous cooling and liquefaction, it is necessary to use a circulating pump (pump2) to lift the low-temperature fluorinated liquid to the packing zone C for sufficient heat exchange with the vaporized fluorinated liquid, ensuring that the temperature of zone B is below the atmospheric boiling point of 49°C to allow for vapor-phase liquefaction.

[0130] The specific control logic is as follows: the circulating lift pump 2 adopts incremental PID control, the regulating object (circulating lift pump 2) is the pump frequency ratio of 10 to 100% (corresponding to the pump's allowable frequency conversion range), and the control target is the pressure P2, which is maintained in the range of 0 to 5 kPa (gauge pressure).

[0131] In this embodiment of the invention, during step 201, the atmospheric pressure phase change medium fluorinated liquid directly contacts the heating device, forming a liquid film on the surface of the heat source. After reaching its boiling point, it vaporizes and leaves the surface. Subsequently, a liquid supply pump replenishes the liquid medium, circulating to remove heat. By monitoring the temperature T4 of the vaporized gas, the gas phase has a certain degree of superheat to ensure full utilization of its latent heat and to increase the density difference, allowing it to be squeezed into the return gas pipe and back into the absorption condenser.

[0132] The specific control logic is as follows: the liquid supply pump pump1 adopts incremental PID control, the adjustment object (liquid supply pump pump1) is the pump frequency ratio of 10 to 100% (corresponding to the pump's allowable frequency conversion range), and the control target is the temperature T4, which is maintained within the range of 6K above the saturation temperature corresponding to P4. The current setting is to keep the surface temperature of the heat-generating device at 55℃.

[0133] It is evident that implementation Figure 2 The described low-temperature absorption single-medium phase change liquid-cooled heat exchange control method can intelligently monitor the pipe temperature and pressure data at important nodes (return pipe) in the circulating heat exchange process, and then accurately monitor according to the preset pressure deviation value and saturation temperature threshold. At the same time, incremental PID control is used to realize intelligent adjustment of the pressure value at P2 and the temperature data at T4, which reduces the probability of errors in the circulating heat exchange process and improves the operational reliability and accuracy of the entire circulating heat exchange process.

[0134] In an optional embodiment, the heat exchange result corresponding to the primary conversion medium and the secondary conversion medium includes a first liquid medium and a second liquid medium after the secondary conversion medium absorbs heat. The first liquid medium is the medium after the primary conversion medium is condensed and liquefied, and the medium temperature of the first liquid medium is lower than that of the second liquid medium.

[0135] According to the preset medium state processing scheme, medium transportation and cooling operations are performed on the heat exchange results to obtain the corresponding liquid storage results and cooling results, including:

[0136] According to the preset medium state processing scheme, the first liquid medium is transported to the storage zone corresponding to the first liquid medium, which is used as the storage result corresponding to the first liquid medium;

[0137] According to the preset medium state processing scheme, the second liquid medium is subjected to a cooling process through the third heat exchange device and the preset cooling medium, so that the medium temperature of the second liquid medium is adjusted to the first medium temperature range, which is taken as the cooling process result of the second liquid medium.

[0138] In this optional embodiment, the target heat exchange medium, the primary conversion medium, and the first liquid medium are all stored in different heat exchange zones of the same target medium heat exchange device, and the target heat exchange medium and the second liquid medium are ultimately stored in the same heat exchange zone through the medium circulation process adopted by the target medium heat exchange device.

[0139] The target zone where the target heat exchange medium is located has a corresponding liquid level detection device to detect the medium storage of the target heat exchange medium in the target zone in order to maintain the normal operation of the first heat exchange device and the second heat exchange device in the target medium heat exchange equipment.

[0140] In this optional embodiment, the third heat exchange device may specifically be a heat exchanger that uses a partitioned heat exchange method for cooling.

[0141] As can be seen, in this optional embodiment, after the superheated phase change gas (primary conversion medium) of the fluorinated liquid and the low-temperature fluorinated liquid (secondary conversion medium, approximately 40°C) exchange heat in the porous packing zone, the superheated phase change gas is condensed and liquefied to obtain the first liquid medium, which is then transported together to the bottom storage section. In addition, the fluorinated liquid, whose temperature is not higher than the boiling point after heating and has not vaporized, is cooled by exchanging heat with the cold water on the primary side through the bottom heat exchanger, reaching a subcooled state (cooling treatment result). At this time, the overall circulating heat exchange process forms a closed loop, improving the recyclability of the heat exchange process. Furthermore, a liquid level detection device is also set up for the liquid level of the zone where the target heat exchange medium is located, which can automatically monitor the medium storage of the target heat exchange medium in the target zone, and then automatically fill it when the medium storage is insufficient, improving the circulation accuracy and reliability of the circulating heat exchange process.

[0142] In another alternative embodiment, before detecting the temperature of the target heat exchange medium, the method further includes:

[0143] Determine whether the cooling medium meets the cooling conditions for performing cooling operation on the heat exchange medium. If it is determined that the cooling medium does not meet the cooling conditions for performing cooling operation on the heat exchange medium, adjust the temperature of the cooling medium until it is determined that the cooling medium meets the cooling conditions. Then, control the second heat exchange equipment to operate according to the preset initial operation mode so that the target heat exchange medium and the cooling medium form convective heat exchange.

[0144] Determine whether the collected liquid pipe temperature matches the preset subcooling state temperature. When it is determined that the liquid pipe temperature matches the subcooling state temperature, trigger the above-mentioned detection of the target heat exchange medium temperature. After the target heat exchange medium temperature is detected to be within the first medium temperature range, trigger the above-mentioned execution of the first heat exchange operation on the target heating device based on the first heat exchange device and the target heat exchange medium to obtain the first-level conversion medium corresponding to the target heat exchange medium.

[0145] Among them, the riser pipe is a liquid delivery pipe that connects to the second heat exchanger.

[0146] In this optional embodiment, the system operates in a loop on the premise that Figure 6 The liquid fluorinated liquid in Zone A reaches a subcooled state to meet the requirements of absorbing phase change heat and to ensure that cavitation at the pump inlet is avoided.

[0147] The specific startup and standby logic for this circulating heat exchange system is as follows: Cooling water at ambient temperature (32℃, or some higher temperature to ensure supercooling of the fluorinated liquid) is supplied to cool the heat exchanger in the absorption condensate tank. The initial circulation booster pump 2 starts at a low speed to allow convective heat transfer between the fluorinated liquid in the tank and the heat exchanger, accelerating heat exchange. When the temperature sensor T2 on the booster pipe reaches the required supercooling state, the circulating heat exchange system enters standby mode, and the supply pump 1 can be started according to the terminal cooling demand.

[0148] As can be seen, in this optional embodiment, in order to ensure the normal operation of the circulating heat exchange system, a temperature monitoring process for the cooling medium (cooling water) is set up to automatically determine the cooling conditions of the cooling medium. If the cooling medium does not meet the cooling conditions, the temperature of the cooling medium is automatically adjusted to ensure that the temperature of the cooling medium is constant and meets the cooling conditions. In this circulating heat exchange process, since the load of the main equipment is borne by the cooling water on the primary side, the maximum demand for cooling water is related to the total heat load of each main equipment. Therefore, setting up corresponding temperature monitoring and intelligent cooling on the primary side where the cooling water is located helps to reduce the probability of errors in the overall circulating heat exchange process and improve the circulation accuracy of the overall circulating heat exchange process.

[0149] Example 3

[0150] Please see Figure 3 , Figure 3 This is a schematic diagram of a low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control device disclosed in an embodiment of the present invention. The low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control device can be a low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control terminal, a low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control equipment, a low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control system, or a low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control server. The low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control server can be a local server, a remote server, or a cloud server (also known as a cloud server). When the low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control server is not a cloud server, it can communicate with the cloud server. This embodiment of the present invention does not impose limitations. Figure 3 As shown, the low-temperature absorption type single-medium phase change liquid-cooled heat exchange control device may include a first heat exchange module 301, a second heat exchange module 302, and a liquid storage cooling module 303, wherein:

[0151] The first heat exchange module 301 is used to perform a first heat exchange operation on the target heating device according to the first heat exchange equipment and the target heat exchange medium when the medium temperature of the target heat exchange medium is detected to be within the target medium temperature range, so as to obtain the first-level conversion medium corresponding to the target heat exchange medium. The first heat exchange operation is used to control the surface temperature of the target heating device at a preset constant temperature.

[0152] The second heat exchange module 302 is used to perform a second heat exchange operation on the primary conversion medium in the determined target packing area according to the second heat exchange equipment and the secondary conversion medium, to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium. The medium temperature of the secondary conversion medium is lower than that of the primary conversion medium, and the secondary conversion medium and the primary conversion medium are the same medium.

[0153] In this embodiment of the invention, optionally, the second heat exchange module 302 performs a second heat exchange operation on the primary conversion medium in the determined target packing region based on the second heat exchange device and the secondary conversion medium, and obtains the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium in the following specific ways:

[0154] When the primary conversion medium is detected, the primary conversion medium is transported to the target packing area through the circulating gas pipe connected to the device partition corresponding to the target heating device;

[0155] The second heat exchanger performs a temperature adjustment operation on the target heat exchange medium to obtain a secondary conversion medium whose medium temperature is within the second medium temperature range, and then transports the secondary conversion medium to the target packing area through the second heat exchanger.

[0156] Based on the secondary conversion medium, a second heat exchange operation is performed on the primary conversion medium to obtain the heat exchange results corresponding to the primary and secondary conversion media.

[0157] The liquid storage and cooling module 303 is used to perform medium transportation and cooling operations on the heat exchange results according to the preset medium state processing scheme, so as to obtain the liquid storage results and cooling results corresponding to the heat exchange results.

[0158] It is evident that implementation Figure 3The described low-temperature absorption-type single-medium phase change liquid-cooled heat exchange control device, through the design of a primary and secondary high-efficiency energy-saving heat exchange device, isolates the target heat-generating device from direct contact with cooling water. It utilizes thermosiphon and a liquid pump to drive the fluorinated liquid, combining absorption and phase change heat exchange for enhanced heat exchange on both sides. After heat exchange in the heat-generating electronic device, the gaseous fluorinated liquid and the cooled liquid fluorinated liquid undergo contact heat exchange, fully utilizing the principle of similar solubility in organic matter to assist the gaseous medium in entering the liquid medium for liquefaction. Compared to traditional heat exchange through the heat exchanger surface, this method has higher heat exchange efficiency. Secondly, the liquid fluorinated liquid at the bottom exchanges with the cooling water through the heat exchanger surface for liquid-liquid heat exchange, which, compared to gas-liquid (gaseous fluorinated liquid-cooling water), fully utilizes the heat exchange surface area and improves heat exchange efficiency.

[0159] In an optional embodiment, the first heat exchange module 301 performs a first heat exchange operation on the target heat-generating device based on the first heat exchange equipment and the target heat exchange medium, and the specific method for obtaining the primary conversion medium corresponding to the target heat exchange medium includes:

[0160] Based on the collected device temperature of the target heating device, determine the medium consumption parameters required to adjust the device temperature to the preset constant temperature through the target heat exchange medium. The medium consumption parameters include the medium consumption amount and / or the delivery rate of the target heat exchange medium per unit time for the preset cooling.

[0161] According to the first heat exchange device, the target heat exchange medium is transferred to the liquid separation device. The liquid separation device includes at least one conveying channel and at least one liquid separation area, and each conveying channel corresponds to at least one liquid separation area.

[0162] Based on the delivery channel corresponding to the target heat-generating device, the target heat exchange medium is delivered to the device partition corresponding to the target heat-generating device according to the delivery amount corresponding to the medium consumption parameters.

[0163] Based on the target heat exchange medium, the first heat exchange operation is performed on the target heat-generating device to obtain the primary conversion medium corresponding to the target heat exchange medium. The primary conversion medium is the gaseous medium obtained by absorbing heat and vaporizing the liquid target heat exchange medium.

[0164] As can be seen, in this optional embodiment, the amount of medium consumed and / or the medium delivery rate per unit time required to cool down the target heating device can be determined for the device temperature of each target heating device; thereby allocating the corresponding share of the target heat exchange medium to the liquid distribution area and device partition where the target heating device is located, thereby improving the accuracy of performing cooling operations on the target heating device.

[0165] In another optional embodiment, the heat exchange result corresponding to the primary conversion medium and the secondary conversion medium includes a first liquid medium and a second liquid medium after the secondary conversion medium absorbs heat. The first liquid medium is the medium after the primary conversion medium is condensed and liquefied, and the medium temperature of the first liquid medium is lower than that of the second liquid medium.

[0166] The liquid storage and cooling module 303 performs medium transport and cooling operations on the heat exchange results according to a preset medium state processing scheme. The specific methods for obtaining the corresponding liquid storage results and cooling results include:

[0167] According to the preset medium state processing scheme, the first liquid medium is transported to the storage zone corresponding to the first liquid medium, which is used as the storage result corresponding to the first liquid medium;

[0168] According to the preset medium state processing scheme, the second liquid medium is subjected to a cooling process through the third heat exchange device and the preset cooling medium, so that the medium temperature of the second liquid medium is adjusted to the first medium temperature range, which is taken as the cooling process result of the second liquid medium.

[0169] In this optional embodiment, the target heat exchange medium, the primary conversion medium, and the first liquid medium are all stored in different heat exchange zones of the same target medium heat exchange device, and the target heat exchange medium and the second liquid medium are ultimately stored in the same heat exchange zone through the medium circulation process adopted by the target medium heat exchange device.

[0170] The target zone where the target heat exchange medium is located has a corresponding liquid level detection device to detect the medium storage of the target heat exchange medium in the target zone in order to maintain the normal operation of the first heat exchange device and the second heat exchange device in the target medium heat exchange equipment.

[0171] As can be seen, in this optional embodiment, after the superheated phase change gas (primary conversion medium) of the fluorinated liquid and the low-temperature fluorinated liquid (secondary conversion medium, approximately 40°C) exchange heat in the porous packing zone, the superheated phase change gas is condensed and liquefied to obtain the first liquid medium, which is then transported together to the bottom storage section. In addition, the fluorinated liquid, whose temperature is not higher than the boiling point after heating and has not vaporized, is cooled by exchanging heat with the cold water on the primary side through the bottom heat exchanger, reaching a subcooled state (cooling treatment result). At this time, the overall circulating heat exchange process forms a closed loop, improving the recyclability of the heat exchange process. Furthermore, a liquid level detection device is also set up for the liquid level of the zone where the target heat exchange medium is located, which can automatically monitor the medium storage of the target heat exchange medium in the target zone, and then automatically fill it when the medium storage is insufficient, improving the circulation accuracy and reliability of the circulating heat exchange process.

[0172] In yet another alternative embodiment, such as Figure 4As shown, the device also includes a data acquisition module 304, a judgment module 305, an incremental control module 306, and a calculation module 307, wherein:

[0173] The acquisition module 304 is used to acquire the pipe temperature data and pipe pressure data corresponding to the return gas pipe. The return gas pipe is the pipe through which the first heat exchange device transfers the target heat exchange medium to the liquid separator.

[0174] The judgment module 305 is used to determine whether the pipeline temperature data is within the preset saturation temperature threshold.

[0175] The incremental control module 306 is used to perform a first incremental control operation on the first heat exchanger within the frequency conversion range corresponding to the first heat exchanger, according to the determined incremental control scheme, when it is determined that the pipeline temperature data is outside the saturation temperature threshold, so as to adjust the pipeline temperature data to within the saturation temperature threshold.

[0176] The calculation module 307 is used to calculate the pressure difference between the pipeline pressure data and the standard air pressure value.

[0177] The judgment module 305 is also used to determine whether the pressure difference is greater than or equal to the preset pressure difference threshold.

[0178] The incremental control module 306 is also used to perform a second incremental control operation on the second heat exchanger within the frequency conversion range corresponding to the second heat exchanger, according to the incremental control scheme, when the judgment module 305 determines that the pressure difference is greater than or equal to the preset pressure difference threshold, so as to adjust the pressure difference to be less than the preset pressure difference threshold.

[0179] It is evident that implementation Figure 4 The described low-temperature absorption single-medium phase change liquid-cooled heat exchange control device can intelligently monitor the pipe temperature and pressure data at important nodes (return gas pipe) in the circulating heat exchange process, and then accurately monitor according to the preset gas pressure deviation value and saturation temperature threshold. At the same time, it adopts incremental PID control to realize intelligent adjustment of the pressure value at P2 and the temperature data at T4, which reduces the probability of errors in the circulating heat exchange process and improves the operational reliability and accuracy of the entire circulating heat exchange process.

[0180] In another optional embodiment, the determination module 305 is further configured to determine whether the cooling medium meets the cooling conditions for performing a cooling operation on the heat exchange medium before detecting the medium temperature of the target heat exchange medium.

[0181] like Figure 4 As shown, the device also includes an adjustment control module 308, wherein:

[0182] The adjustment control module 308 is used to adjust the temperature of the cooling medium until it is determined that the cooling medium meets the cooling conditions for performing cooling operation on the heat exchange medium to the target heat exchange medium. Then, it controls the second heat exchange equipment to operate according to the preset initial operation mode so that the target heat exchange medium and the cooling medium form convective heat exchange.

[0183] The judgment module 305 is also used to judge whether the collected liquid pipe temperature of the lifting liquid pipe matches the preset subcooling state temperature. When it is judged that the liquid pipe temperature matches the subcooling state temperature, the above-mentioned detection of the target heat exchange medium temperature is triggered. After the target heat exchange medium temperature is detected to be within the first medium temperature range, the above-mentioned execution of the first heat exchange operation on the target heat-generating device based on the first heat exchange device and the target heat exchange medium is triggered to obtain the first-level conversion medium corresponding to the target heat exchange medium.

[0184] Among them, the riser pipe is a liquid delivery pipe that connects to the second heat exchanger.

[0185] As can be seen, in this optional embodiment, in order to ensure the normal operation of the circulating heat exchange system, a temperature monitoring process for the cooling medium (cooling water) is set up to automatically determine the cooling conditions of the cooling medium. If the cooling medium does not meet the cooling conditions, the temperature of the cooling medium is automatically adjusted to ensure that the temperature of the cooling medium is constant and meets the cooling conditions. In this circulating heat exchange process, since the load of the main equipment is borne by the cooling water on the primary side, the maximum demand for cooling water is related to the total heat load of each main equipment. Therefore, setting up corresponding temperature monitoring and intelligent cooling on the primary side where the cooling water is located helps to reduce the probability of errors in the overall circulating heat exchange process and improve the circulation accuracy of the overall circulating heat exchange process.

[0186] Example 4

[0187] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of another low-temperature absorption type single-medium phase change liquid-cooled heat exchange control device disclosed in an embodiment of the present invention. Figure 5 As shown, the low-temperature absorption type single-medium phase change liquid-cooled heat exchange control device may include:

[0188] Memory 401 storing executable program code;

[0189] Processor 402 coupled to memory 401;

[0190] The processor 402 calls the executable program code stored in the memory 401 to execute the steps in the low-temperature absorption single-medium phase change liquid cooling heat exchange control method described in Embodiment 1 or Embodiment 2 of the present invention.

[0191] Example 5

[0192] This invention discloses a computer storage medium storing computer instructions. When these computer instructions are invoked, they are used to execute the steps in the low-temperature absorption single-medium phase change liquid cooling heat exchange control method described in Embodiment 1 or Embodiment 2 of this invention.

[0193] Example 6

[0194] This invention discloses a computer program product, which includes a non-transient computer storage medium storing a computer program, and the computer program is operable to cause a computer to perform the steps in the low-temperature absorption single-medium phase change liquid cooling heat exchange control method described in Embodiment 1 or Embodiment 2.

[0195] The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0196] Through the detailed description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0197] Finally, it should be noted that the low-temperature absorption single-medium phase change liquid cooling heat exchange control method and device disclosed in the embodiments of the present invention are merely preferred embodiments of the present invention, and are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling liquid-cooled heat transfer in a low-temperature absorption-type single-medium phase change process, characterized in that, The method includes: When the temperature of the target heat exchange medium is detected to be within the target medium temperature range, a first heat exchange operation is performed on the target heating device according to the first heat exchange device and the target heat exchange medium to obtain the first-level conversion medium corresponding to the target heat exchange medium. The first heat exchange operation is used to control the surface temperature of the target heating device at a preset constant temperature. Based on the second heat exchange device and the secondary conversion medium, a second heat exchange operation is performed on the primary conversion medium in the determined target packing area to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium. The medium temperature of the secondary conversion medium is lower than that of the primary conversion medium, and the secondary conversion medium and the primary conversion medium are the same medium. According to the preset medium state processing scheme, the heat exchange result is subjected to medium transportation and cooling processing operations to obtain the liquid storage result and cooling processing result corresponding to the heat exchange result.

2. The method for controlling liquid-cooled heat transfer in a low-temperature absorption-type single-medium phase change system according to claim 1, characterized in that, The step of performing a first heat exchange operation on the target heating device based on the first heat exchange device and the target heat exchange medium to obtain the primary conversion medium corresponding to the target heat exchange medium includes: Based on the collected device temperature of the target heating device, determine the medium consumption parameters required to adjust the device temperature to a preset constant temperature through the target heat exchange medium. The medium consumption parameters include the medium consumption amount and / or the delivery rate of the target heat exchange medium per unit time for a preset cooling. According to the first heat exchange device, the target heat exchange medium is transferred to the liquid distribution device, the liquid distribution device includes at least one conveying channel and at least one liquid distribution area, and each conveying channel corresponds to at least one liquid distribution area; Based on the delivery channel corresponding to the target heating device, the target heat exchange medium is delivered to the device partition corresponding to the target heating device according to the delivery amount corresponding to the medium consumption parameters; Based on the target heat exchange medium, a first heat exchange operation is performed on the target heating device to obtain a primary conversion medium corresponding to the target heat exchange medium. The primary conversion medium is a gaseous medium obtained by absorbing heat and vaporizing the liquid target heat exchange medium.

3. The method for controlling liquid-cooled heat transfer in a low-temperature absorption single-medium phase change process according to claim 2, characterized in that, The step of performing a second heat exchange operation on the primary conversion medium in a determined target packing region based on the second heat exchange device and the secondary conversion medium to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium includes: When the primary conversion medium is detected, the primary conversion medium is transported to the target packing area through the circulating air pipe connected to the device partition corresponding to the target heating device; The second heat exchanger performs a temperature adjustment operation on the target heat exchange medium to obtain a secondary conversion medium whose medium temperature is within the second medium temperature range, and then transports the secondary conversion medium to the target packing area through the second heat exchanger. Based on the secondary conversion medium, a second heat exchange operation is performed on the primary conversion medium to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium.

4. The method for controlling liquid-cooled heat transfer in a low-temperature absorption-type single-medium phase change system according to claim 3, characterized in that, The heat exchange results corresponding to the primary conversion medium and the secondary conversion medium include a first liquid medium and a second liquid medium after the secondary conversion medium absorbs heat. The first liquid medium is the medium after the primary conversion medium is condensed and liquefied, and the medium temperature of the first liquid medium is lower than that of the second liquid medium. The step of performing medium transport and cooling operations on the heat exchange result according to a preset medium state processing scheme to obtain the corresponding liquid storage result and cooling result includes: According to the preset medium state processing scheme, the first liquid medium is transported to the storage zone corresponding to the first liquid medium, which is used as the storage result corresponding to the first liquid medium; According to the preset medium state processing scheme, the second liquid medium is subjected to a cooling process through the third heat exchange device and the preset cooling medium, so that the medium temperature of the second liquid medium is adjusted to the first medium temperature range, which is the cooling process result corresponding to the second liquid medium.

5. The method for controlling liquid-cooled heat transfer in a low-temperature absorption-type single-medium phase change system according to claim 4, characterized in that, The method further includes: Collect pipeline temperature data and pipeline pressure data corresponding to the return gas pipeline, wherein the return gas pipeline is the pipeline through which the first heat exchange device transmits the target heat exchange medium to the liquid separation device; Determine whether the pipe temperature data is within the preset saturation temperature threshold. When it is determined that the pipe temperature data is outside the saturation temperature threshold, according to the determined incremental control scheme, perform a first incremental control operation on the first heat exchanger within the frequency conversion range corresponding to the first heat exchanger to adjust the pipe temperature data to within the saturation temperature threshold. Calculate the pressure difference between the pipeline pressure data and the standard air pressure value, and determine whether the pressure difference is greater than or equal to a preset pressure difference threshold. If the determination result is yes, according to the incremental control scheme, perform a second incremental control operation on the second heat exchanger within the frequency conversion range corresponding to the second heat exchanger, so that the pressure difference is adjusted to be less than the preset pressure difference threshold.

6. A method for controlling liquid-cooled heat transfer in a low-temperature absorption-type single-medium phase change manner according to claim 4 or 5, characterized in that, Before detecting the temperature of the target heat exchange medium, the method further includes: Determine whether the cooling medium meets the cooling conditions for performing the cooling operation on the heat exchange medium. If it is determined that the cooling medium does not meet the cooling conditions for performing the cooling operation on the heat exchange medium, adjust the temperature of the cooling medium until it is determined that the cooling medium meets the cooling conditions. Then, control the second heat exchange device to operate according to the preset initial operating mode so that the target heat exchange medium and the cooling medium form convective heat exchange. Determine whether the collected liquid pipe temperature of the lifting liquid pipe matches the preset subcooling state temperature. When it is determined that the liquid pipe temperature matches the subcooling state temperature, trigger the execution of detecting the medium temperature of the target heat exchange medium. After detecting that the medium temperature of the target heat exchange medium is within the first medium temperature range, trigger the execution of performing the first heat exchange operation on the target heating device according to the first heat exchange device and the target heat exchange medium to obtain the first-level conversion medium corresponding to the target heat exchange medium. The lifting liquid pipe is a liquid delivery pipe that connects to the second heat exchanger.

7. The method for controlling liquid-cooled heat transfer in a low-temperature absorption single-medium phase change process according to claim 6, characterized in that, The target heat exchange medium, the primary conversion medium, and the first liquid medium are all stored in different heat exchange zones of the same target medium heat exchange device. The target heat exchange medium and the second liquid medium are ultimately stored in the same heat exchange zone through the medium circulation process adopted by the target medium heat exchange device. The target heat exchange medium is located in a target zone where a liquid level detection device is corresponding to the target zone, so as to detect the medium storage of the target heat exchange medium in the target zone and maintain the normal operation of the first heat exchange device and the second heat exchange device in the target medium heat exchange equipment.

8. A low-temperature absorption type single-medium phase change liquid-cooled heat exchange control device, characterized in that, The device includes: The first heat exchange module is used to perform a first heat exchange operation on the target heating device according to the first heat exchange equipment and the target heat exchange medium when the medium temperature of the target heat exchange medium is detected to be within the target medium temperature range, so as to obtain the first-level conversion medium corresponding to the target heat exchange medium. The first heat exchange operation is used to control the surface temperature of the target heating device at a preset constant temperature. The second heat exchange module is used to perform a second heat exchange operation on the primary conversion medium in a determined target packing area according to the second heat exchange equipment and the secondary conversion medium, to obtain the heat exchange results corresponding to the primary conversion medium and the secondary conversion medium, wherein the medium temperature of the secondary conversion medium is lower than that of the primary conversion medium, and the secondary conversion medium and the primary conversion medium are the same medium. The liquid storage and cooling module is used to perform medium transportation and cooling operations on the heat exchange results according to a preset medium state processing scheme, so as to obtain the liquid storage results and cooling results corresponding to the heat exchange results.

9. A low-temperature absorption type single-medium phase change liquid-cooled heat exchange control device, characterized in that, The device includes: Memory containing executable program code; A processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the low-temperature absorption single-medium phase change liquid-cooled heat exchange control method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions, which, when invoked, are used to execute the low-temperature absorption single-medium phase change liquid-cooled heat exchange control method as described in any one of claims 1-7.

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