CN117596844A - Computing equipment multistage cooling heat dissipation system and method based on fluorinated solution - Google Patents
Computing equipment multistage cooling heat dissipation system and method based on fluorinated solution Download PDFInfo
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- 238000001816 cooling Methods 0.000 title claims abstract description 207
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 396
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 18
- 239000000498 cooling water Substances 0.000 claims description 67
- 230000001105 regulatory effect Effects 0.000 claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 230000008093 supporting effect Effects 0.000 claims description 22
- 230000001276 controlling effect Effects 0.000 claims description 17
- 239000011148 porous material Substances 0.000 claims description 11
- 230000033228 biological regulation Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- 210000003934 vacuole Anatomy 0.000 abstract description 12
- 230000009471 action Effects 0.000 description 8
- 238000012546 transfer Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/208—Liquid cooling with phase change
- H05K7/20818—Liquid cooling with phase change within cabinets for removing heat from server blades
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20318—Condensers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20381—Thermal management, e.g. evaporation control
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20736—Forced ventilation of a gaseous coolant within cabinets for removing heat from server blades
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20836—Thermal management, e.g. server temperature control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention belongs to the technical field of fluoride liquid cooling, and discloses a multistage cooling and heat dissipation system and a multistage cooling and heat dissipation method of computing equipment based on fluoride liquid, wherein the system comprises a first-stage cooling and heat dissipation system, a second-stage cooling and heat dissipation system and a third-stage cooling and heat dissipation system, the first-stage cooling and heat dissipation system comprises a liquid bubble and a liquid storage tank, a computing element is wrapped in the liquid bubble, a fluoride liquid working medium is filled in the liquid bubble, a porous support plate is arranged in the liquid bubble, a fluoride liquid mixed working medium flowing out of the computing equipment enters the second-stage cooling and heat dissipation system, the second-stage cooling and heat dissipation system is used for liquefying a gaseous working medium and conveying the liquid working medium to the liquid storage tank, the liquid fluoride liquid working medium in the liquid storage tank enters the computing equipment, and the computing equipment is cooled and heat dissipated again and circularly reciprocated; the third stage cooling heat dissipation system is used for transferring heat of the second stage cooling heat dissipation system. The invention utilizes the structural characteristics of the multistage cooling system combined with the vacuoles and the porous support plates to improve the cooling and heat dissipation effects.
Description
Technical Field
The invention belongs to the technical field of fluoride liquid cooling, and particularly relates to a computing equipment multistage cooling heat dissipation system and method based on fluoride liquid.
Background
At present, large-scale computing devices such as servers and the like have higher and higher requirements on computing capacity and computing speed, and a great amount of heat is often generated in the use process of the devices, so that cooling and heat dissipation treatments are needed, and the devices mainly comprise indirect cooling and heat dissipation and direct cooling and heat dissipation. The indirect cooling mode mainly refers to an air conditioning system or other cooling modes applied to a closed environment where equipment such as a machine room or a server is located, and the purpose of cooling and radiating the equipment is achieved by regulating and controlling the heat dissipation of the equipment in an indoor environment. However, the indirect cooling and heat dissipation is effective only when the number of devices in the enclosed space is small or the workload of the devices is low, and the indirect cooling and heat dissipation mode has poor cooling and heat dissipation effect when the density of the devices placed in the enclosed space is high or the operation load of a large number of devices is high and the generated heat is large. The direct cooling and heat dissipation mode is to directly cool and dissipate heat of computing equipment such as a server in a closed space, so that heat is carried away from the interior or the surface of the equipment as much as possible, and the equipment is ensured to be positioned in a safe temperature range, so that the working performance and the service life of the equipment are ensured.
The existing direct cooling and heat dissipation technology for large-scale computing equipment mainly comprises an air type direct cooling and heat dissipation technology and a liquid type cooling and heat dissipation technology. The air cooling and heat dissipation is realized by carrying out convection heat exchange on cold air and a surface with higher temperature or a high-temperature space, thereby realizing the purpose of cooling and heat dissipation on equipment. However, it is also necessary to combine with an indirect cooling and heat dissipation system, for example, to transfer heat of an enclosed space to the outside by means of an air conditioning system, and the cooling and heat dissipation effects are unstable due to factors such as air conditioning performance, outdoor air temperature, and the like.
Liquid cooling techniques generally include water-cooled cooling techniques and refrigerant cooling techniques. The water-cooled cooling heat dissipation refers to taking water as a working medium, and forming a loop through a pipeline system to enable the water to circulate so as to take away heat on the surface or in the computing equipment. Because the risk of leakage of working medium in the pipe is higher, the field of water-cooled application is not many. The cooling and heat dissipation of the refrigerant is similar to the water-cooled cooling and heat dissipation, the leakage problem also exists, and in addition, the used working medium generally has the condition that the refrigerating working medium cannot be in direct contact with heat dissipation equipment, so that the effect of the cooling and heat dissipation system of the refrigerant is limited.
In summary, the existing two cooling and heat dissipation technologies and systems for large-scale computing devices such as servers cannot overcome the problem that cooling and heat dissipation working media cannot be in direct contact with the surfaces of the computing devices and the interiors of the computing devices. In addition, the cooling and heat dissipation working medium generally has a gasification phenomenon after absorbing heat, so that the pressure in equipment or a pipe is too high, the existing cooling and heat dissipation system is difficult to realize the purposes of re-liquefying the gasified working medium and reducing the pressure of the system, and the problem is more remarkable particularly when the cost of the working medium is higher. At present, although the fluorinated liquid is considered as a liquid working medium which can be in direct contact with the computing equipment, a computing equipment cooling and heat dissipation system taking the fluorinated liquid as the working medium is still lacking, and the problems of recycling the gasified working medium, regulating and controlling the pressure of the system not to be too high and realizing the functions of effective heat carrying and heat dissipation can be solved at the same time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a multi-stage cooling and radiating system and method for computing equipment based on a fluorinated solution, which comprise three cooling and radiating subsystems, wherein electronic fluorinated solution is used as a heat-carrying and radiating working medium, a first-stage cooling and radiating system is arranged to enable the working medium to be in direct contact with the surface or the inside of the computing equipment so as to bring heat away from the surface or the inside of the computing equipment, and the heat transfer process between the equipment and the working medium is enhanced as soon as possible so as to bring heat away from the inside or the surface of the equipment. In order to assist the cooling and radiating work of the first-stage cooling and radiating system, a second-stage cooling and radiating system and a third-stage cooling and radiating system are arranged, so that heat exchange is enhanced and cooling and radiating effects are improved.
Two purposes are achieved by the present invention: the corresponding pressure regulating device and condensation heat exchange device are arranged, so that the problems of overhigh pressure in the equipment and the pipe and the recycling of working media are solved. The multistage cooling heat dissipation system can quickly transfer and dissipate heat of the equipment and the equipment in the cabinet as soon as possible, and the problem that the existing cooling heat dissipation system is low in heat dissipation rate is solved.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a multistage cooling and radiating system of computing equipment based on fluorinated liquid, which comprises a first stage cooling and radiating system, a second stage cooling and radiating system and a third stage cooling and radiating system, wherein the first stage cooling and radiating system comprises a liquid bubble, a pressure regulating device and a liquid storage tank, the liquid bubble is made of elastic materials, a computing element of the computing equipment is wrapped in the liquid bubble, a fluorinated liquid working medium is filled in the liquid bubble, a porous supporting plate is arranged in the liquid bubble and used for supporting the liquid bubble to be unfolded, pore channels with different apertures are arranged on the porous supporting plate, the flow of the fluorinated liquid is strengthened by utilizing structures with different apertures, a loop is formed by a fluorinated liquid working medium in a pipe of the first stage cooling and radiating system and the computing equipment, a fluorinated liquid mixed working medium which is mixed with high temperature gas and carries heat and flows out by the computing equipment enters the second stage cooling and radiating system through a pipeline after being regulated and controlled by the pressure regulating device, the second stage cooling and radiating system is used for liquefying a gaseous working medium and conveying the liquid working medium to the liquid storage tank, the liquid fluorinated liquid in the liquid storage tank enters the computing equipment, and the computing equipment again carries out cooling and radiating and circulating and reciprocating; the third-stage cooling heat dissipation system is used for transferring heat of the second-stage cooling heat dissipation system.
Further, the first-stage cooling heat dissipation system further comprises a flow guide pipe and a heat flow pipe, the pressure regulating device is arranged on the heat flow pipe, the mixed working medium of the fluorinated liquid mixed with the high-temperature gas and liquid cooled by the computing equipment flows out through the flow guide pipe and flows through the heat flow pipe, and then the mixed working medium of the gas and liquid enters the second-stage cooling heat dissipation system through the heat flow pipe after pressure regulation of the pressure regulating device;
the first-stage cooling heat dissipation system further comprises a flow divider, a liquid valve and a flow dividing pipe, wherein a cold flow main pipe is arranged at the lower part of the liquid storage tank, low-temperature liquid working medium flows in the cold flow main pipe, a liquid pump and a stop valve are arranged on the cold flow main pipe, the low-temperature liquid working medium in the pipe after the liquid pump acts on then flows through the stop valve, the stop valve is used for controlling the start and stop of the system and the flow of the liquid working medium through the opening and closing degree through opening and closing and adjusting, the liquid working medium flowing through the stop valve continuously flows into the flow divider along the cold flow main pipe, the flow divider is used for evenly distributing the liquid working medium in the cold flow main pipe, the working medium passes through the liquid valve and continuously flows into the computing equipment along the flow dividing pipe, and the liquid valve is used for controlling the flow of the liquid working medium in the corresponding flow dividing pipe.
Further, the second-stage cooling and radiating system comprises two parallel branches, namely a liquid working medium conveying branch and a gaseous working medium conveying branch, which are used for conveying liquid working medium and gaseous working medium respectively, wherein the liquid working medium conveying branch comprises a gas-liquid separator, a one-way valve and a pressure transmitter, a separating screen is arranged in the gas-liquid separator and is used for separating the mixed working medium of the fluoridized liquid, and the separated liquid working medium enters a liquid storage tank through the one-way valve and the pressure transmitter; the gaseous working medium conveying branch circuit comprises a magnetic pump, a hot drainage tube, a one-way valve and a condenser, wherein the gaseous working medium separated by the gas-liquid separator sequentially enters the condenser through the magnetic pump, the hot drainage tube and the one-way valve, and cooling water is arranged in the condenser and is used for exchanging heat with the gaseous working medium to liquefy the gaseous working medium carrying heat.
Furthermore, the third-stage cooling heat dissipation system comprises a hot water pipe, a one-way valve and a cooling tower, wherein cooling water in the condenser, which exchanges heat with the gaseous working medium and heats up, sequentially enters the cooling tower through the hot water pipe and the one-way valve, and heat is dissipated into the surrounding environment by utilizing the heat exchange effect between the cooling water and the surrounding environment.
Further, a filter screen is arranged at the water outlet of the cooling tower and used for filtering out solid impurities in the cooling water, the low-temperature cooling water cooled by the cooling tower flows back to the condenser through a cold water pipe, and a one-way valve and a liquid pump are arranged on the cold water pipe.
Further, the third-stage cooling heat dissipation system further comprises a fan, and the fan is used for forcedly evaporating and cooling the cooling water.
Further, the equipment shell and the cabinet are arranged outside the computing equipment, the diversion pipe and the diversion pipe are connected into the cabinet and the equipment shell and connected with the liquid bubble in the equipment shell, and the fluorinated liquid is filled in the liquid bubble and is in direct contact with the computing equipment and exchanges heat.
Further, the computing equipment comprises a plurality of groups of equipment connected in parallel, and each group of hot flow pipes is provided with a pressure regulating device for controlling the pressure in the corresponding hot flow pipe so as to regulate the pressure in the computing equipment; and each group of shunt pipes is provided with a liquid valve for controlling the flow of the liquid working medium in the corresponding shunt pipe.
Secondly, each time, the invention provides a multi-stage cooling and heat dissipation method for computing equipment based on a fluorinated solution, which comprises the following steps:
step 1, cooling and radiating by computing equipment:
the low-temperature liquid working medium in the liquid storage tank flows through the stop valve after being acted by the liquid pump, the stop valve is used for controlling the start and stop of the system and the flow of the liquid working medium by opening and closing and adjusting the opening and closing degree, the liquid working medium continuously flows into the flow divider along the cold flow main pipe, the flow divider evenly distributes the liquid working medium in the cold flow main pipe, the working medium continuously flows into the liquid bubble along the pipeline through the liquid valve, the computing equipment in the liquid bubble is cooled and radiated, the fluorinated liquid working medium is filled in the liquid bubble, a plurality of porous supporting plates with supporting effect are arranged in the liquid bubble, the porous supporting plates are shaped for the liquid bubble, the liquid bubble wall is prevented from pressing the computing equipment, the pore channels with unequal sizes are arranged on the porous supporting plates to allow the liquid working medium to freely flow, and simultaneously the small holes can generate disturbance on the flow of the fluorinated liquid in the large holes, and the heat exchange effect is enhanced;
step 2, secondary cooling and heat dissipation:
the high-temperature gas-liquid mixed state working medium cooled by the computing equipment flows out along the pipeline, flows through the pressure regulating device along the heat flow pipe after the heat flow pipe is converged, and then controls the pressure in the heat flow pipe, so that the pressure in the computing equipment is controlled, and damage to the equipment caused by the excessive pressure is prevented; through the pressure regulation of the pressure regulating device, the gas-liquid mixed state working medium continuously enters the gas-liquid separator along the heat flow pipe, the gas-liquid mixed state working medium is divided into liquid working medium and gaseous working medium, the gaseous working medium is concentrated at the upper part of the gas-liquid separator, the liquid working medium is concentrated at the lower part of the gas-liquid separator, the liquid working medium continuously flows along the drainage pipe and enters the liquid storage tank, the drainage pipe is provided with a one-way valve to prevent equipment damage or accidents caused by the backflow of the working medium in the drainage pipe, and the drainage pipe is provided with a pressure transmitter which can monitor the pressure in the drainage pipe in real time and provide a basis for timely regulating the pressure in the pipe; the high-temperature gaseous working medium separated by the gas-liquid separator is powered by an electromagnetic pump in a pipeline, flows unidirectionally along a hot drainage tube, flows into a condenser, is cooled by cooling water, is converted into liquid working medium after heat release and temperature reduction, and enters a liquid storage tank along the pipeline from low-temperature liquid working medium flowing out of the condenser, wherein the low-temperature liquid working medium in the liquid storage tank is used for cooling and heat dissipation of the computing equipment in the step 1;
Step 3, three-stage cooling and heat dissipation:
in the condenser, low-temperature cooling water exchanges heat with high-temperature gaseous working medium, heat carried by the working medium is transferred into the cooling water, the high-temperature cooling water enters a cooling tower along a pipeline, the high-temperature cooling water is naturally cooled in the cooling tower, and when the natural cooling cannot meet the requirement, a matched fan is used for forced evaporation cooling of the cooling water; and then the cooled low-temperature cooling water enters the condenser along the pipeline and is continuously used for secondary cooling and heat dissipation in the step 2.
Compared with the prior art, the invention has the advantages that:
(1) The invention is provided with a first-stage cooling heat dissipation system, a second-stage cooling heat dissipation system and a third-stage cooling heat dissipation system, and the heat exchange between the fluoridized liquid and the computing equipment is enhanced by utilizing the structural characteristics of the multi-stage cooling system combined with the vacuoles and the porous support plates, so that the purpose of cooling and heat dissipation is achieved. Specifically, be provided with porous backup pad and vacuole in the first level cooling system, the vacuole can be according to pressure variation change shape assurance fluoridize liquid evenly flows, and the aperture in the porous backup pad can produce the disturbance to the fluoridize liquid flow in the macropore, and then strengthens the turbulent motion degree of fluoridize liquid and strengthens the convection heat transfer effect between fluoridize liquid and the equipment. The cooling and radiating system takes the fluorinated liquid as a working medium, the working medium of the fluorinated liquid has good heat conducting property, heat carrying property and excellent insulativity, the working medium can be directly contacted with the computing equipment in the cabinet without damaging the equipment, the equipment is subjected to heat radiation and cooling, and the direct contact of the working medium and the heat generating equipment can effectively improve the cooling and radiating effect.
(2) The first-stage cooling heat dissipation system is provided with components such as a pressure regulating device and a liquid storage tank, so that stable regulation and control of system pressure can be realized, the safety range is not exceeded, the liquid working medium is directly stored, and the key problems that the working medium is in direct contact with computing equipment and the heat exchange effect can be enhanced are solved.
(3) The second-stage cooling heat dissipation system is provided with double branches, and two key problems of separation of gas-liquid mixed state working media and liquefied recycling of the gas state working media are solved through different components on the branches.
(4) The third-stage cooling heat dissipation system takes cooling water as working medium, realizes the purpose that heat is quickly transferred from the working medium to the cooling water through the circulation flow of the cooling water and is quickly dissipated into the environment, and solves the key problem of quick heat transfer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a multi-stage cooling heat dissipation system for a fluorinated liquid-based computing device of the present invention;
FIG. 2 is a schematic diagram of a first stage cooling system according to the present invention;
FIG. 3 is a schematic diagram of a second stage cooling system according to the present invention;
FIG. 4 is a schematic diagram of a third stage cooling heat dissipation system according to the present invention;
FIG. 5 is a schematic diagram of a vacuole structure of the present invention;
fig. 6 is a schematic view of the structure of the porous support plate of the present invention.
In the figure, 1. A cabinet; 2. an equipment housing; 3. a computing element; 4. a flow guiding pipe; 5. a thermal flow tube; 6. a pressure regulating device; 7. a gas-liquid separator; 8. a separation sieve; 9. a drainage tube; 10. a one-way valve; 11. a pressure transmitter; 12. a liquid storage tank; 13. cold flow header pipe; 14. a liquid pump; 15. a stop valve; 16. a shunt; 17. a liquid valve; 18. a shunt; 19. a magnetic pump; 20. a thermal drain; 21. a one-way valve; 22. a condenser; 23. a cold drainage tube; 24. a hot water pipe; 25. a one-way valve; 26. a cooling tower; 27. a fan; 28. a filter screen; 29. a cold water pipe; 30. a one-way valve; 31. a water pump; 32. a vacuole; 33. a porous support plate; 34. a duct.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples.
Example 1
With reference to fig. 1, this embodiment provides a multi-stage cooling and heat dissipation system for a computing device based on a fluorinated solution, where a three-stage cooling and heat dissipation system is provided, and the three-stage cooling and heat dissipation system includes a first-stage cooling and heat dissipation system, a second-stage cooling and heat dissipation system, and a third-stage cooling and heat dissipation system.
The first-stage cooling heat dissipation system uses the fluoride liquid as a cooling heat dissipation working medium, and the working medium can be directly contacted with the computing equipment without damaging the equipment. Specifically, the first-stage cooling heat dissipation system includes a liquid bubble 32, a pressure regulating device 6 and a liquid storage tank 12, where the pressure regulating device 6 of this embodiment may use a pressure regulating valve, the liquid bubble 32 is made of an elastic material, a computing element of a computing device is wrapped inside the liquid bubble 32, a fluorinated liquid working medium is filled inside the liquid bubble 32, and the liquid bubble 32 can change shape according to pressure changes to ensure uniform flow of the fluorinated liquid; and referring to fig. 5 and 6, a porous support plate 33 is disposed in the liquid bubble 32 for supporting the liquid bubble 32 without folding, and pore channels 34 with different pore diameters are disposed on the porous support plate 33, so that the flow of the fluorinated liquid is strengthened by utilizing the structure of self-porous and different pore diameters, that is, small holes on the porous support plate 33 can generate disturbance to the flow of the fluorinated liquid in large holes, and further the turbulence degree of the fluorinated liquid is strengthened, so that the convective heat transfer effect between the fluorinated liquid and the equipment is strengthened.
The method comprises the steps that a loop is formed by a fluorinated liquid working medium in a pipe of a first-stage cooling heat dissipation system and computing equipment, the fluorinated liquid mixed working medium which flows out of the computing equipment and is mixed with high-temperature gas and liquid carrying heat is regulated and controlled by a pressure regulating device 6, and then enters a second-stage cooling heat dissipation system through a pipeline, wherein the second-stage cooling heat dissipation system is used for liquefying gaseous working medium and conveying liquid working medium to a liquid storage tank 12, the liquid fluorinated liquid working medium in the liquid storage tank 12 enters the computing equipment, and the computing equipment is cooled and dissipated again and is cycled and reciprocated; the third-stage cooling heat dissipation system is used for transferring heat of the second-stage cooling heat dissipation system.
As shown in fig. 1 and fig. 2, on the first-stage cooling and heat dissipating system, a plurality of equipment shells 2 and cabinets 1 are arranged outside the computing equipment in this embodiment, the equipment shells 2 can protect the internal computing element 3, the computing element 3 is prevented from being damaged, and the computing element 3 is covered by the fluorinated liquid working medium.
As a preferred implementation manner, the first-stage cooling heat dissipation system further comprises a flow guide pipe 4 and a heat flow pipe 5, the pressure regulating device 6 is arranged on the heat flow pipe 5, the mixed working medium of the high-temperature gas-liquid mixture after cooling the computing element 3 flows out of the equipment shell 2 and the equipment shell 1 sequentially through the flow guide pipe 4, after the heat flow pipe 5 is converged, the mixed working medium flows through the pressure regulating device 6 along the heat flow pipe 5, the pressure regulating device 6 is positioned on the heat flow pipe 5 and is used for controlling the pressure in the heat flow pipe 5, so that the pressure in the equipment shell 2 and the equipment shell 1 is realized, and damage to equipment caused by overhigh pressure is prevented. Through the pressure regulation of the pressure regulating device 6, the gas-liquid mixed state working medium enters the second-stage cooling heat dissipation system through the heat flow pipe 5 (specifically, the gas-liquid mixed state working medium enters the gas-liquid separator 7 through the heat flow pipe 5, the high-temperature gas-liquid mixed state working medium flowing out of the cabinet 1 firstly needs to be decompressed through the pressure regulating device 6 and then enters the gas-liquid separator 7 along a pipeline, and a separating screen 8 is arranged in the gas-liquid separator to separate the mixed working medium, which will be described later in detail).
As a preferred embodiment, the first-stage cooling heat dissipation system further comprises a splitter 16, a liquid valve 17 and a splitter tube 18, a cold flow main pipe 13 is arranged at the lower part of the liquid storage tank 12, low-temperature liquid working medium flows in the cold flow main pipe 13, a liquid pump 14 and a stop valve 15 are arranged on the cold flow main pipe 13, the low-temperature liquid working medium in the pipe after being acted by the liquid pump 14 then flows through the stop valve 15, the stop valve 15 is opened and closed by opening and closing and adjusting the opening and closing degree to control the opening and closing degree of the system, the liquid working medium flowing through the stop valve 15 continuously flows into the splitter 16 along the cold flow main pipe 13, the splitter 16 is used for evenly distributing the liquid working medium in the cold flow main pipe 13, the working medium continuously flows into the computing equipment along the splitter tube 18, and the liquid working medium 17 is used for controlling the flow of the liquid working medium in the corresponding splitter tube 18.
It should be noted that, the flow guide tube 4 and the flow dividing tube 18 of the present embodiment are connected into the cabinet and the equipment shell, and connected with the liquid bubble 32 in the equipment shell, and the fluorinated liquid is filled in the liquid bubble 32 and directly contacts and exchanges heat with the computing equipment.
As a preferred implementation manner, the computing device of the present embodiment includes more than one group, and the computing device further includes a plurality of groups of devices connected in parallel, where in the present embodiment, three groups of devices connected in parallel are taken as an example, each group of thermal flow pipes 5 is provided with a pressure regulating device 6 (a pressure regulating device 6-1, a pressure regulating device 6-2, and a pressure regulating device 6-3 respectively) for controlling the pressure in the corresponding thermal flow pipe 5, so as to regulate the pressure in the computing device; the shunt tubes 18 of each group are respectively provided with a liquid valve 17 (respectively a liquid valve 17-1, a liquid valve 17-2 and a liquid valve 17-3) for controlling the flow of the liquid working medium in the corresponding shunt tube 18, and the optimal cooling and heat dissipation effects are achieved through flow regulation.
It should be noted that the first stage cooling heat dissipation system and the second stage cooling heat dissipation system share a gas-liquid separator, a liquid storage tank and a liquid working medium transportation branch between them. The second-stage cooling heat dissipation system and the third-stage cooling heat dissipation system share a condenser.
In order to facilitate understanding of the technical scheme, in the attached drawings of the specification, a first-stage cooling and radiating system, a second-stage cooling and radiating system and a third-stage cooling and radiating system are all complete structural diagrams, namely, the first-stage cooling and radiating system comprises a gas-liquid separator, a liquid storage tank and a liquid working medium conveying branch between the gas-liquid separator and the liquid storage tank, and the third-stage cooling and radiating system comprises a condenser.
That is, on the first stage cooling heat dissipation system, the gas-liquid mixed state working medium cooled by the computing element 3 continues to enter the gas-liquid separator 7 along the heat flow pipe 5, the gas-liquid separator is internally provided with the separating screen 8, the gas-liquid mixed state working medium entering the gas-liquid separator 7 is separated into a liquid state working medium and a gas state working medium by the separating screen 8, the gas state working medium is concentrated at the upper part of the gas-liquid separator 7, and the liquid state working medium is concentrated at the lower part of the gas-liquid separator 7. The liquid working medium continuously flows from the lower part of the gas-liquid separator 7 along the drainage tube 9, and the drainage tube 9 is sequentially provided with a one-way valve 10 and a pressure transmitter 11. The check valve 10 can be used for placing equipment damage or accidents caused by the backflow of working media in the drainage tube 9, and the pressure transmitter 11 can be used for monitoring the pressure in the drainage tube 9 in real time, so that a basis is provided for timely adjusting the pressure in the tube. The liquid working medium flowing along the drainage tube 9 flows through the one-way valve 10 and the pressure transmitter 11 in sequence and enters the liquid storage tank 12. The liquid storage tank 12 can provide conditions for storing liquid working media according to actual use conditions. The lower part of the liquid storage tank 12 is provided with a cold flow main pipe 13, and a liquid pump 14 on the cold flow main pipe 13 provides power for liquid working media. The low-temperature working medium in the pipe after the action of the liquid pump 14 flows through the stop valve 15, continuously flows along the cold flow main pipe 13 and enters the flow divider 16, and the flow divider 16 can evenly distribute the liquid working medium in the cold flow main pipe 13, so that the working medium continuously flows into the cabinet 1 along the flow dividing pipe 18 through the liquid valve 17 and further enters the equipment shell 2 to cool and dissipate heat of the computing element 3.
As shown in fig. 3, the second-stage cooling and heat dissipation system starts from a gas-liquid separator 7, and comprises two parallel branches, namely a liquid working medium conveying branch and a gaseous working medium conveying branch, which are used for conveying liquid working medium and gaseous working medium respectively, wherein the liquid working medium conveying branch comprises the gas-liquid separator 7, a drainage tube 9, a one-way valve 10 and a pressure transmitter 11, a separating screen 8 is arranged in the gas-liquid separator 7 and is used for separating a fluorinated liquid mixed working medium, the gas-liquid mixed working medium in the gas-liquid separator 7 is separated into the gaseous working medium and the liquid working medium by the separating screen 8, the liquid working medium flows along the drainage tube 9, sequentially flows through the one-way valve 10 and the pressure transmitter 11 and finally flows into a liquid storage tank 12. The working medium in the pipe can only flow from the gas-liquid separator 7 to the liquid storage tank 12 under the limit of the one-way valve 10, but can not flow reversely. The existence of the check valve 10 prevents the reverse flow of the working medium, reduces the weakening of the system performance caused by the countercurrent flow of the working medium and the damage to the system components, and the pressure transmitter 11 is arranged to monitor the pressure in the pipeline in real time so as to regulate and control in time.
The gaseous working medium transport branch comprises a magnetic pump 19, a hot drainage tube 20, a one-way valve 21, a condenser 22 and a cold drainage tube 23, the gaseous working medium separated by the gas-liquid separator 7 has higher temperature, and the high-temperature gaseous working medium is powered by the electromagnetic pump 19 in a pipeline, flows unidirectionally along the hot drainage tube 20 and flows into the condenser 22. The high-temperature gaseous working medium flows through the one-way valve 21 before flowing into the condenser 22, and the one-way valve 21 is positioned on the hot drainage tube 20 and has the function of prohibiting the high-temperature gaseous working medium from flowing back, thereby causing equipment damage and affecting system performance. The high-temperature gaseous working medium entering the condenser 22 is cooled by cooling water, is converted into liquid working medium after heat release and temperature reduction, flows into the liquid storage tank 12 along the cold drainage tube 23 by the low-temperature liquid working medium flowing out of the condenser 22, and enters the liquid storage tank 12 along a pipeline for mixing with the existing liquid working medium for the next cycle after the liquefied working medium is recovered. A cold drain 23 is located between the 12 reservoir and the 22 condenser to connect them together. The condenser 22 is provided with cooling water for exchanging heat with the gaseous working medium and liquefying the gaseous working medium carrying heat.
As shown in fig. 4, the third stage cooling system uses purified water as a cooling medium starting from the condenser 22. The third stage cooling heat dissipation system comprises a hot water pipe 24, a one-way valve 25, a cooling tower 26 and a cold water pipe 29. The low-temperature cooling water exchanges heat with the high-temperature gaseous working medium in the condenser 22, heat carried by the working medium is transferred to the cooling water, the high-temperature cooling water flows along the hot water pipe 24, the hot water pipe 24 is provided with the one-way valve 25, the one-way valve 25 can prevent the high-temperature cooling water from flowing back, and the system performance reduction and the service life reduction caused by incomplete liquefaction of the gaseous working medium due to hot water backflow are avoided. The high-temperature cooling water flowing through the check valve 25 continues to flow along the pipe into the cooling tower 26, and the high-temperature cooling water is naturally cooled in the cooling tower 26.
As a preferred embodiment, when natural cooling is not satisfactory, the third stage cooling heat dissipation system further includes a fan 27, and the cooling water is forced to evaporate by using the fan 27.
As a preferred embodiment, the water outlet of the cooling tower 26 is provided with a filter screen 28, and the filter screen 28 can filter out part of solid impurities in the cooling water, so that the cooling water impurities are prevented from affecting fluidity more, and the service life of the cooling water working medium is prolonged. The cooling water passing through the filter mesh 28 has been cooled down and the heat is transferred to the surrounding environment. The low-temperature cooling water cooled by the cooling tower 26 flows back to the condenser 22 through the cold water pipe 29, the cold water pipe 29 is provided with the one-way valve 30 and the liquid pump 31, the one-way valve 30 can avoid the backflow of the low-temperature cooling water, and the defect of insufficient cooling water flow for heat exchange is prevented. The low-temperature cooling water flows into the condenser 22 by means of the power supplied from the liquid pump 31.
Example 2
The present embodiment provides a multi-stage cooling and heat dissipation method for a computing device based on a fluorinated solution, which may be performed by the multi-stage cooling and heat dissipation system described in embodiment 1, and the system structure and functions may be described in embodiment 1, which is not repeated here, and the method includes the following steps:
step 1, cooling and radiating by computing equipment:
in the step, the fluoridized liquid is used as a cooling and heat dissipation working medium, and the working medium can be directly contacted with the computing equipment without damaging the equipment.
The low-temperature liquid working medium in the liquid storage tank 12 flows through the stop valve 15 after being acted by the liquid pump 14, the stop valve 15 is opened and closed and the opening and closing degree is adjusted to control the start and stop of the system and the flow of the liquid working medium, the liquid working medium continuously flows into the flow divider 16 along the cold flow main pipe 13, the flow divider 16 evenly distributes the liquid working medium in the cold flow main pipe 13, the working medium continuously flows into the liquid bubble 32 along the pipeline through the liquid valve 17 to cool and dissipate heat of computing equipment in the liquid bubble 32, the fluorinated liquid working medium is filled in the liquid bubble 32, a plurality of porous supporting plates 33 with supporting effect are arranged in the liquid bubble 32, the porous supporting plates 33 are used for shaping the liquid bubble 32, the pressure of the liquid bubble 32 on the wall of the computing equipment is prevented, the liquid working medium is allowed to freely flow through the pore channels 34 with unequal sizes, and meanwhile, the small holes can generate disturbance on the flow of the fluorinated liquid in the large holes, and the heat exchange effect is enhanced.
Before the fluoride liquid working medium from the liquid storage tank enters the cabinet, the fluoride liquid working medium needs to pass through a liquid valve, and the liquid valve has the functions of controlling the opening and closing of a pipeline and regulating the flow of the fluoride liquid working medium entering the cabinet, so that the cost increase and the performance deficiency caused by overlarge or undersize flow are prevented. The cabinet is internally provided with a liquid bubble made of polyethylene, the liquid bubble is filled with a fluorinated liquid working medium, the computing elements are all positioned in the liquid bubble, and the fluorinated liquid in the liquid bubble can be directly contacted with the computing elements, so that the problem that the working medium cannot be directly contacted with equipment is solved, and heat transfer is enhanced. In order to prevent deformation of the vacuole and uneven distribution of working media of the fluorinated liquid, a porous supporting plate is arranged in the vacuole, so that the deformation capacity of the vacuole can be limited, and the fluorinated liquid can be allowed to flow freely through a pore channel structure of the porous supporting plate.
Step 2, secondary cooling and heat dissipation:
the high-temperature gas-liquid mixed state working medium cooled by the computing equipment flows out along the pipeline, flows through the pressure regulating device 6 along the heat flow pipe 5 after the heat flow pipe 5 is converged, and the pressure in the heat flow pipe 5 is controlled by the pressure regulating device 6 so as to further control the pressure in the computing equipment and prevent the equipment from being damaged by the excessive pressure; through the pressure regulation of the pressure regulating device 6, the gas-liquid mixed state working medium continuously enters the gas-liquid separator 7 along the heat flow pipe 5, the gas-liquid mixed state working medium is divided into liquid working medium and gas working medium, the gas working medium is concentrated at the upper part of the gas-liquid separator 7, the liquid working medium is concentrated at the lower part of the gas-liquid separator 7, the liquid working medium continuously flows along the drainage pipe 9 and enters the liquid storage tank 12, the drainage pipe 9 is provided with a one-way valve 10 to prevent equipment damage or accidents caused by the backflow of the working medium in the drainage pipe 9, and the drainage pipe 9 is provided with a pressure transmitter 11 which can monitor the pressure in the drainage pipe 9 in real time and provide a basis for timely regulating the pressure in the pipe; the high-temperature gaseous working medium separated by the gas-liquid separator 7 is powered by an electromagnetic pump 19 in a pipeline, flows unidirectionally along a hot drainage tube 20, flows into a condenser 22, the high-temperature gaseous working medium entering the condenser 22 is cooled by cooling water, is converted into liquid working medium after heat release and temperature reduction, the low-temperature liquid working medium flowing out of the condenser 22 enters a liquid storage tank 12 along the pipeline, and the low-temperature liquid working medium in the liquid storage tank 12 is used for cooling and heat dissipation of the computing equipment in the step 1. The liquid storage tank 12 is the end point of the liquid working medium branch and the end point of the gaseous working medium branch, and low-temperature liquid working medium is stored in the liquid storage tank, so that sufficient working medium is provided for the normal operation of the first-stage cooling and radiating system.
The liquid state fluoride liquid is conveyed in the liquid state working medium conveying branch, and the one-way valve is arranged on the branch to prevent the working medium from flowing back, so that the system performance is influenced and accidents are caused. The pressure transmitter on the branch can monitor the pressure in the pipeline in real time, and provide a basis for timely regulating and controlling the pressure.
The gaseous working medium is high-temperature steam of the fluorinated liquid working medium in the gaseous working medium conveying branch, flows into the condenser along the branch pipeline under the action of the electromagnetic pump, and the high-temperature gaseous working medium after entering the condenser can liquefy and discharge heat, so that the purpose that the heat is transferred out of the cabinet is achieved. The branch is provided with a directional valve, and the purpose of the directional valve is to prevent the system performance from deteriorating and the equipment from being damaged caused by the backflow of the gaseous working medium. The high-temperature gaseous working medium exchanges heat with cooling water in the condenser and then is converted into liquid, and the liquid enters the liquid storage tank along a pipeline to be combined with the original liquid working medium for use.
In addition, it should be noted that the pressure of the gas-liquid mixed state working medium carrying a large amount of heat coming out of the cabinet is often higher, and the pressure of the working medium in the pipe can be regulated through the pressure regulating valve according to the safety pressure range set by the system in the actual use process so as to regulate the pressure in the cabinet, particularly in the equipment shell, and prevent the damage to the equipment caused by the overhigh pressure. After the pressure of the working medium is stabilized within a set safety range, the normal-pressure working medium enters the gas-liquid separator along the pipeline, and the magnetic pump can provide power for the gaseous fluorinated liquid. The gas-liquid separator can effectively separate mixed state working media, the gaseous working media are recycled after being cooled, liquefied and recovered by other equipment, and the liquid working media continuously enter a system pipeline for direct recycling. Particularly, when the cost of the working medium is high, the gas-liquid separator can be arranged to liquefy and recycle as much gaseous components in the mixed state working medium as possible, so that the gasified working medium is prevented from leaking, and the use and maintenance cost is reduced; and the safety problem caused by overhigh pressure in the pipe can be avoided, and the service life of the system is prolonged. The gaseous working medium is liquefied and then enters the liquid storage tank and other liquid working mediums to enter the cabinet along the pipeline under the action of the liquid pump, so that the computing equipment in the cabinet is continuously cooled and radiated. A one-way valve is arranged on a pipeline between the gas-liquid separator and the liquid storage tank, so that the flow direction of the fluorinated liquid is controlled, and the influence of working medium countercurrent on the system performance and the damage to the system are avoided.
Step 3, three-stage cooling and heat dissipation:
the three-stage cooling heat dissipation uses the purified cooling water as a working medium, the low-temperature cooling water exchanges heat with the high-temperature gaseous working medium in the condenser 22, heat carried by the working medium is transferred to the cooling water, the high-temperature cooling water enters the cooling tower 26 along a pipeline, the high-temperature cooling water is naturally cooled in the cooling tower 26, and when the natural cooling cannot meet the requirement, the matched fan 27 is used for forced evaporation cooling of the cooling water; the cooled low-temperature cooling water enters the condenser 22 along the pipeline and is continuously used for the secondary cooling heat dissipation of the step 2.
In addition, the pipeline is provided with a one-way valve, and the one-way valve can limit the flow direction of cooling water and prevent the heat radiation performance deterioration and equipment damage caused by the back flow of the cooling water. The filter screen is needed to pass before the cooling water in the cooling tower flows out, and the filter screen can filter out solid impurities in the cooling water, so that the flowing capacity of the cooling water is ensured. The cooling water flowing out of the cooling tower flows under the action of the liquid pump, and enters the condenser along the pipeline to perform the next cooling circulation work.
In summary, the working medium in the pipe of the first-stage cooling and radiating system and the computing equipment directly form a loop, the fluorinated liquid working medium in the system is split by the splitter under the action of the liquid pump and then uniformly enters different equipment shells, the working medium can enter the computing equipment to be in direct contact with the computing equipment without damaging the equipment, and heat generated during the operation of the equipment is carried out of the cabinet by virtue of the action of flowing heat carrier to cool the computing equipment. The direct contact of the working medium and the heat generating equipment can effectively improve the cooling and radiating effects.
The device is provided with a vacuole which is made of elastic materials and is used for containing fluoridized liquid. A porous supporting plate is arranged in the vacuole and has the function of supporting the vacuole to be unfolded; and secondly, the flowing of the fluoride liquid is enhanced by utilizing a structure with different self-porosity and pore diameters, so that the cooling effect is enhanced. The fluorinated liquid working medium carrying heat from the cabinet enters the gas-liquid separator through the pipeline, and before entering the gas-liquid separator, the pressure in the pipeline can be regulated and controlled in real time by the pressure regulating device, so that the pressure faced by equipment in the cabinet is regulated, and the high-pressure damage to the equipment is prevented, and the service life of the system is shortened. The gas-liquid separator can temporarily store and then separate the mixture of the gasified working medium and the liquid working medium. The separated liquid working medium directly enters the liquid storage tank through a pipeline, and the gaseous working medium enters the condenser through the pipeline under the action of the magnetic pump. The fluoride liquid working medium has good heat conducting performance and heat carrying performance, and part of the working medium after heat absorption can be gasified, and particularly when the heat generated by computing equipment in a cabinet is large, the quantity of the working medium subjected to heat absorption and gasification is larger. The separated liquid working medium in the gas-liquid separator enters the liquid storage tank along the pipeline through the one-way valve, and the one-way valve only allows the liquid fluorinated liquid working medium to flow to the liquid storage tank in one direction from the gas-liquid separator, so that the working medium is prevented from flowing back. Under the action of the liquid pump, the liquid fluorinated liquid working medium in the liquid storage tank enters the cabinet along the pipeline, cools and dissipates heat to the computing equipment in the cabinet again, and repeats circularly.
The second-stage cooling heat dissipation system comprises two parallel branches, and the functions of the second-stage cooling heat dissipation system are as follows: conveying the liquid working medium to a liquid storage tank, monitoring the pressure of the working medium in the pipe and preventing the working medium from flowing back; the heat of the high-temperature gaseous working medium is transferred as soon as possible, and the gaseous working medium is liquefied and recovered for repeated use. The second-stage cooling heat dissipation system liquefies a gaseous working medium carrying a large amount of heat, and the heat of the gaseous working medium is transferred into cooling water in a condenser, so that the heat is quickly transferred from the working medium to the cooling water.
The third-stage cooling heat dissipation system uses cooling water as working medium, mainly solves the problems of heat transfer and dissipation as soon as possible, and the cooling water after heat exchange and temperature rise with the gaseous fluorinated liquid in the condenser enters the cooling tower along the pipeline, so that the heat is dissipated into the surrounding environment by utilizing the heat exchange effect between the cooling water and the surrounding environment. The third-stage cooling heat dissipation system achieves the purpose of transferring and dissipating heat carried by cooling water to the atmosphere as soon as possible.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that various changes, modifications, additions and substitutions can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (9)
1. The multi-stage cooling and radiating system of the computing equipment based on the fluorinated liquid is characterized by comprising a first-stage cooling and radiating system, a second-stage cooling and radiating system and a third-stage cooling and radiating system, wherein the first-stage cooling and radiating system comprises a liquid bubble (32), a pressure regulating device (6) and a liquid storage tank (12), the liquid bubble (32) is made of elastic materials, a computing element of the computing equipment is wrapped in the liquid bubble (32), a fluorinated liquid working medium is filled in the liquid bubble (32), a porous supporting plate (33) is arranged in the liquid bubble (32) and is used for supporting the liquid bubble (32) to be unfolded, pore channels (34) with different pore diameters are formed in the porous supporting plate (33), the fluorinated liquid flows by utilizing structures with different pore diameters, a loop is formed by the fluorinated liquid working medium in a pipe of the first-stage cooling and radiating system and the computing equipment, the fluorinated liquid mixed working medium with high-temperature gas liquid with heat flowing out of the computing equipment enters the second-stage cooling and is used for liquefying the liquid working medium by a pipeline after being regulated by the pressure regulating device (6), and the second-stage cooling and the liquid working medium is used for conveying the liquid working medium into the liquid storage tank (12) to the computing equipment to cool the liquid to be cooled and cooled again, and the reciprocating and radiating equipment is cooled; the third-stage cooling heat dissipation system is used for transferring heat of the second-stage cooling heat dissipation system.
2. The multistage cooling and heat dissipation system of computing equipment based on fluorinated liquid according to claim 1, wherein the first stage cooling and heat dissipation system further comprises a flow guide pipe (4) and a heat flow pipe (5), the pressure regulating device (6) is arranged on the heat flow pipe (5), the fluorinated liquid mixed working medium mixed with high-temperature gas and liquid after the computing equipment is cooled flows out through the flow guide pipe (4) and after the heat flow pipe (5) is converged, the gas-liquid mixed working medium enters the second stage cooling and heat dissipation system through the heat flow pipe (5) through pressure regulation of the pressure regulating device (6);
the first-stage cooling heat dissipation system further comprises a flow divider (16), a liquid valve (17) and a flow dividing pipe (18), a cold flow main pipe (13) is arranged at the lower part of the liquid storage tank (12), low-temperature liquid working media flow in the cold flow main pipe (13), a liquid pump (14) and a stop valve (15) are arranged on the cold flow main pipe (13), the low-temperature liquid working media in the pipe after being acted by the liquid pump (14) flow through the stop valve (15), the stop valve (15) is used for controlling the start-stop of the system and the flow of the liquid working media through opening and closing and adjusting the opening and closing degree, the liquid working media flowing through the stop valve (15) continuously flow into the flow divider (16) along the cold flow main pipe (13), the liquid working media in the cold flow main pipe (13) are evenly distributed, the working media continuously flow into the computing equipment along the flow dividing pipe (18), and the liquid working media (17) are used for controlling the flow of the liquid working media in the corresponding flow dividing pipe (18).
3. The multistage cooling heat dissipation system of the computing equipment based on the fluorinated liquid according to claim 1, wherein the second stage cooling heat dissipation system comprises two parallel branches, namely a liquid working medium conveying branch and a gaseous working medium conveying branch, which are used for conveying the liquid working medium and the gaseous working medium respectively, the liquid working medium conveying branch comprises a gas-liquid separator (7), a one-way valve (10) and a pressure transmitter (11), a separating screen (8) is arranged in the gas-liquid separator (7) and is used for separating the mixed working medium of the fluorinated liquid, and the separated liquid working medium enters a liquid storage tank (12) through the one-way valve (10) and the pressure transmitter (11); the gaseous working medium conveying branch circuit comprises a magnetic pump (19), a hot drainage tube (20), a one-way valve (21) and a condenser (22), wherein the gaseous working medium separated by the gas-liquid separator (7) sequentially passes through the magnetic pump (19), the hot drainage tube (20) and the one-way valve (21) to enter the condenser (22), and cooling water is arranged in the condenser (22) and is used for exchanging heat with the gaseous working medium to liquefy the gaseous working medium carrying heat.
4. A multi-stage cooling and heat dissipation system for a computing device based on a fluorinated liquid according to claim 3, wherein the third stage cooling and heat dissipation system comprises a hot water pipe (24), a one-way valve (25) and a cooling tower (26), cooling water which exchanges heat with a gaseous working medium in a condenser (22) and heats up is sequentially introduced into the cooling tower (26) through the hot water pipe (24) and the one-way valve (25), and heat is dissipated into the surrounding environment by utilizing the heat exchange effect between the cooling water and the surrounding environment.
5. The multistage cooling heat dissipation system of the computing equipment based on the fluoride liquid, as claimed in claim 4, wherein a filter screen (28) is arranged at a water outlet of the cooling tower (26) and used for filtering solid impurities in the cooling water, the low-temperature cooling water cooled by the cooling tower (26) flows back to the condenser (22) through a cold water pipe (29), and a one-way valve (30) and a liquid pump (31) are arranged on the cold water pipe (29).
6. The fluoride solution-based computing device multi-stage cooling system of claim 4, further comprising a fan (27), the fan (27) configured to forcibly evaporate cooling water.
7. A multistage cooling heat dissipation system for a computing device based on a fluorinated fluid according to claim 2, wherein the computing device is provided with a device housing and a cabinet, the flow guide tube (4) and the flow dividing tube (18) are connected into the cabinet and the device housing, are connected with a liquid bubble (32) in the device housing, and the fluorinated fluid is filled in the liquid bubble and is in direct contact and heat exchange with the computing device.
8. The multistage cooling heat dissipation system of the computing equipment based on the fluoride liquid according to claim 7, wherein the computing equipment comprises a plurality of groups of equipment connected in parallel, and each group of heat flow pipes (5) is provided with a pressure regulating device (6) for controlling the pressure in the corresponding heat flow pipe (5) so as to regulate the pressure in the computing equipment; the shunt pipes (18) of each group are provided with liquid valves (17) for controlling the flow of the liquid working medium in the corresponding shunt pipe (18).
9. The multistage cooling heat dissipation method for the computing equipment based on the fluoride liquid is characterized by comprising the following steps of:
step 1, cooling and radiating by computing equipment:
the low-temperature liquid working medium in the liquid storage tank (12) flows through the stop valve (15) after being acted by the liquid pump (14), the stop valve (15) is opened and closed and the opening and closing degree is adjusted to control the start and stop of the system and the flow of the liquid working medium, the liquid working medium continuously flows into the flow divider (16) along the cold flow main pipe (13), the flow divider (16) evenly distributes the liquid working medium in the cold flow main pipe (13), the working medium continuously flows into the liquid bubble (32) along the pipeline through the liquid valve (17), the computing equipment in the liquid bubble (32) is cooled and radiated, the fluorinated liquid working medium is filled in the liquid bubble (32), a plurality of porous supporting plates (33) with supporting functions are arranged in the liquid bubble (32), the porous supporting plates (33) are shaped for the liquid bubble (32) to prevent the pressure of the computing equipment, the liquid working medium with unequal sizes arranged on the porous supporting plates (33) allows the free flow to pass, and meanwhile, the flow of the fluorinated liquid in the big holes can be disturbed, and the heat exchange effect is enhanced;
step 2, secondary cooling and heat dissipation:
the high-temperature gas-liquid mixed state working medium cooled by the computing equipment flows out along the pipeline, flows through the pressure regulating device (6) along the heat flow pipe (5) after the heat flow pipe (5) is converged, and the pressure in the heat flow pipe (5) is controlled by the pressure regulating device (6), so that the pressure in the computing equipment is controlled, and damage to the equipment caused by the excessive pressure is prevented; through the pressure regulation of the pressure regulating device (6), the gas-liquid mixed state working medium continuously enters the gas-liquid separator (7) along the heat flow pipe (5), the gas-liquid mixed state working medium is divided into liquid working medium and gaseous working medium, the gaseous working medium is concentrated on the upper part of the gas-liquid separator (7), the liquid working medium is concentrated on the lower part of the gas-liquid separator (7), the liquid working medium continuously flows along the drainage pipe (9) and enters the liquid storage tank (12), the drainage pipe (9) is provided with a one-way valve (10), equipment damage or accidents caused by the backflow of the working medium in the drainage pipe (9) are prevented, and the pressure in the drainage pipe (9) can be monitored in real time by the pressure transmitter (11), so that a basis is provided for timely regulating the pressure in the pipe; the high-temperature gaseous working medium separated by the gas-liquid separator (7) is powered by an electromagnetic pump (19) in a pipeline, flows unidirectionally along a hot drainage tube (20), flows into a condenser (22), is cooled by cooling water, is converted into liquid working medium after heat release and temperature reduction, and enters a liquid storage tank (12) along the pipeline by the low-temperature liquid working medium flowing out of the condenser (22), wherein the low-temperature liquid working medium in the liquid storage tank (12) is used for cooling and heat dissipation of the computing equipment in the step 1;
Step 3, three-stage cooling and heat dissipation:
in the condenser (22), low-temperature cooling water exchanges heat with high-temperature gaseous working medium, heat carried by the working medium is transferred into the cooling water, the high-temperature cooling water enters the cooling tower (26) along a pipeline, the high-temperature cooling water is naturally cooled in the cooling tower (26), and when the natural cooling cannot meet the requirement, a matched fan (27) is used for forced evaporation cooling of the cooling water; and then the cooled low-temperature cooling water enters a condenser (22) along a pipeline and is continuously used for secondary cooling and heat dissipation in the step 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311636935.4A CN117596844A (en) | 2023-12-01 | 2023-12-01 | Computing equipment multistage cooling heat dissipation system and method based on fluorinated solution |
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| CN202311636935.4A CN117596844A (en) | 2023-12-01 | 2023-12-01 | Computing equipment multistage cooling heat dissipation system and method based on fluorinated solution |
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