CN113473802A - Cooling system of cold plate type server and control method - Google Patents
Cooling system of cold plate type server and control method Download PDFInfo
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- CN113473802A CN113473802A CN202110727640.2A CN202110727640A CN113473802A CN 113473802 A CN113473802 A CN 113473802A CN 202110727640 A CN202110727640 A CN 202110727640A CN 113473802 A CN113473802 A CN 113473802A
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- fluorine pump
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- heat exchanger
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- 238000001816 cooling Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 109
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 109
- 239000011737 fluorine Substances 0.000 claims abstract description 109
- 238000005057 refrigeration Methods 0.000 claims abstract description 90
- 230000017525 heat dissipation Effects 0.000 claims abstract description 37
- 239000007921 spray Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims description 153
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 68
- 238000009833 condensation Methods 0.000 claims description 19
- 230000005494 condensation Effects 0.000 claims description 19
- 239000008399 tap water Substances 0.000 claims description 11
- 235000020679 tap water Nutrition 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 238000010288 cold spraying Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 13
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 7
- 238000010622 cold drawing Methods 0.000 description 7
- 230000003020 moisturizing effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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- 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
Abstract
The invention discloses a heat dissipation system of a cold plate type server and a control method thereof, wherein the heat dissipation system comprises a compressor refrigeration cycle, a fluorine pump refrigeration cycle and an emergency refrigeration cycle, the compressor refrigeration cycle, the fluorine pump refrigeration cycle and the emergency refrigeration cycle are communicated with each other, and one of three refrigeration cycle modes is selected and used according to the external temperature. The invention adopts cold storage spray cooling and intermediate cooling technologies, greatly improves the heat dissipation effect of the cold plate server, achieves the purposes of energy saving and consumption reduction, and the compressor refrigeration cycle and the fluorine pump refrigeration cycle are independently used at different temperatures, so that the minimum energy consumption can achieve the maximum heat dissipation purpose, thereby achieving the purposes of energy saving and consumption reduction.
Description
Technical Field
The invention belongs to the technical field of server refrigeration, and particularly relates to a cooling system of a cold plate server and a control method.
Background
Along with the development of information technology, the increase of server heat dissipation capacity and computer lab heat dissipation density, rely on the precision air conditioner radiating mode of electric power, will be replaced by neotype refrigeration mode gradually, along with the rapid development of mobile data, cloud computing and big data service, data center construction scale is bigger and bigger, single rack density increases, the calorific capacity of server equipment chip also constantly increases, traditional air cooling mode not only power consumption is big and can not satisfy IT equipment's heat dissipation demand more and more, the appeal of saving energy to data center, also show prominently gradually, consequently, the radiating server technique of cold drawing formula is in force, but traditional cold drawing formula heat dissipation is to under the higher condition of outdoor temperature, the radiating effect is not good, based on this, design a highly reliable cold drawing server cooling system.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a cooling system and a control method of a cold plate server.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a cooling system of cold plate server, includes compressor refrigeration cycle, fluorine pump refrigeration cycle, still includes emergent refrigeration cycle, communicate each other between compressor refrigeration cycle, fluorine pump refrigeration cycle and the emergent refrigeration cycle, select to use one kind of refrigeration mode in three kinds of refrigeration cycle modes according to ambient temperature.
Preferably, still include the liquid looped netowrk, supply liquid looped netowrk, rack, the input that returns the liquid looped netowrk is connected with the rack, and the output that returns the liquid looped netowrk is connected with compressor refrigeration cycle input, the input that supplies the liquid looped netowrk is connected with compressor refrigeration cycle's output, wherein, compression refrigeration cycle, fluorine pump refrigeration cycle, emergent refrigeration cycle's output and input are the same, and the output that supplies the liquid looped netowrk is connected with the rack, and installs the power pump on the pipeline between liquid looped netowrk and rack, fills the fluorinated liquid in the rack, returns the liquid looped netowrk and conveniently collects and carry the refrigeration cycle with the heat in the rack, to the fluorinated liquid condensation, guarantees that the fluorinated liquid dispels the heat to the server once more, supplies the liquid looped netowrk to guarantee that the fluorinated liquid after the cooling can be even input to the rack, has improved the radiating efficiency of server.
Preferably, the refrigeration cycle of the compressor comprises a compressor, a cold accumulation water tank, a condenser, an intermediate heat exchanger, a first electromagnetic valve, a fifth electromagnetic valve, a first expansion valve, a second expansion valve, a first liquid storage tank, a second fluorine pump, a first one-way valve, a second liquid storage tank, a third expansion valve and a pipeline, wherein the input end of the intermediate heat exchanger is connected with the output end of the liquid return ring pipe, the output end of the intermediate heat exchanger is respectively connected with the input end of the condenser and the first liquid storage tank, a cooling coil pipe is arranged in the middle of the intermediate heat exchanger, one end of the cooling coil pipe is connected with the output end of the liquid return ring network, the other end of the cooling coil pipe is connected with the first liquid storage tank, the condenser, the compressor and the intermediate heat exchanger are connected in pairs to form a closed ring, the first liquid storage tank is connected with the second liquid storage tank through the second fluorine pump, the second liquid storage tank is connected with the liquid supply ring network through the third expansion valve, the first electromagnetic valve and the second expansion valve are sequentially arranged on a pipeline between the compressor and the intermediate heat exchanger, the first one-way valve is arranged on the pipeline between the compressor and the condenser, the first expansion valve is arranged on the pipeline between the condenser and the intermediate heat exchanger, the fifth electromagnetic valve is arranged on the pipeline between the intermediate heat exchanger and the liquid return ring network, the compressor is a variable frequency compressor, the refrigeration cycle of the compressor can cool the fluorinated liquid when the temperature in the cabinet reaches above 35 ℃, the heat dissipation quality of a server in the cabinet is guaranteed, the heat dissipation efficiency is greatly improved, and therefore the normal work of the server is guaranteed.
Preferably, the condenser includes box, condensation heat exchanger, cold-storage water tank, spray set, auxiliary conduit, fan, the top at the box is installed to the condensation heat exchanger, the top at the condensation heat exchanger is installed to the fan, spray set installs on the lateral wall of box, and is not less than the height of condensation heat exchanger, the cold-storage water tank is installed in the bottom of condensation heat exchanger, and internally mounted at the cold-storage water tank has booster pump and liquid level detection device, the booster pump is installed in the bottom of cold-storage water tank and is cooperateed with spray set, the one end of auxiliary conduit is installed on the cold-storage water tank, and the other end is installed on spray set, installs moisturizing motorised valve and directly spouts the motorised valve in proper order on auxiliary conduit, and installs the running water pipeline interface on auxiliary conduit between moisturizing motorised valve and the directly spout motorised valve, install the cold spraying motorised valve on the spray set, the electronic oozing valve is installed between auxiliary line and booster pump, and the condenser can cool off the refrigerant, can play the purpose that absorbs fluoride liquid temperature among the cooling coil when guaranteeing that the refrigerant gets into the middle part heat exchanger to the realization is to fluoride liquid refrigerated purpose, has improved the cooling effect greatly, has guaranteed the normal work of server.
Preferably, the condenser still includes outlet pipe, inlet tube, cold-storage water pump and cold water heat exchanger, the one end of inlet tube is installed in one side of cold-storage water tank, and the other end passes through the cold-storage water pump and installs the output at cold water heat exchanger, the top at one side inlet tube of cold-storage water tank is installed to the one end of outlet tube, and the input at cold water heat exchanger is installed to the other end of outlet tube, the cold-storage water pump is installed on the outlet tube, and the condenser is used for cooling the refrigerant, when guaranteeing that the refrigerant lies in the cooling coil contact, can absorb the heat of the interior liquid of fluoridizing of cooling coil to realize the purpose of the liquid of cooling fluoridizing, guaranteed that the liquid of fluoridizing can continue to dispel the heat to the server in the rack, improved the radiating efficiency greatly, guaranteed the radiating quality.
Preferably, fluorine pump refrigeration circulation includes first fluorine pump, condenser, second expansion valve, middle heat exchanger, two liang of closed loops that form that link to each other of first fluorine pump, condenser, middle heat exchanger, the one end of first fluorine pump links to each other with the condenser, and the other end passes through the second expansion valve and links to each other with middle heat exchanger, still includes first liquid storage pot, second fluorine pump, second check valve, second liquid storage pot and third expansion valve, and fluorine pump refrigeration circulation can play the purpose of cooling fluoride liquid, guarantees the heat that the server distributes out in the fluoride liquid can absorb the rack once more.
Preferably, the third fluorine pump is connected in parallel on the first fluorine pump, and the first fluorine pump adopts one to be equipped with one with the third fluorine pump and sets up, the fourth fluorine pump is connected in parallel on the second fluorine pump, and the fourth fluorine pump adopts one to be equipped with one and sets up, first fluorine pump, the second fluorine pump, the third fluorine pump, the fourth fluorine pump are frequency conversion fluorine pump, when guaranteeing that first fluorine pump and second fluorine pump go wrong, fluorine pump refrigeration circulation can continue to go on, thereby normal heat dissipation has been guaranteed, the normal operating of server has been guaranteed.
Preferably, emergent refrigeration cycle includes condenser, second solenoid valve, first fluorine pump, third solenoid valve, second liquid storage pot and third expansion valve, the condenser input is connected with the liquid looped netowrk that returns through the second solenoid valve, and the output of condenser is connected with the input of first fluorine pump, the output of first fluorine pump is connected with the second liquid storage pot through the third solenoid valve, the second liquid storage pot is connected with the liquid looped netowrk that supplies through the third expansion valve, and emergent cooling cycle can guarantee after the compressor breaks down, can continue to dispel the heat for server in the rack, prevents that the server from appearing the phenomenon of downtime because of the high temperature, has guaranteed the normal operating of server, has improved the radiating effect.
Preferably, still include the connecting pipe, the output at the liquid looped netowrk is installed back to the one end of connecting pipe, and the input at the confession liquid looped netowrk is installed to the other end, installs the fourth solenoid valve on the connecting pipe, and the setting of connecting pipe can the bypass supply return the liquid flow of fluoridizing of both sides to balanced supply return both sides pressure, the normal circulation of the liquid of guaranteeing to fluoridize, the setting of fourth solenoid valve is convenient for control as required and supplies the bypass of the both sides liquid of fluoridizing.
A control method of a heat dissipation system of a cold plate server comprises the following steps:
when the outdoor temperature is higher than 35 ℃, a compressor refrigeration circulation mode is adopted to radiate the heat of the cold plate server in the cabinet.
When the outdoor temperature is not less than 25 ℃ and not more than 35 ℃, a compressor cooling mode is also adopted, and the difference is that the condenser sprays in a tap water direct spray cooling mode, the cold storage water tank, the cold storage water pump, the booster pump and the cold spray electric valve are all closed, the direct spray electric valve is opened, and tap water pressure is adopted to directly spray and condense to realize efficient cooling of the condenser.
When the outdoor temperature is less than or equal to 25 ℃, the refrigeration cycle of the compressor is closed, and the refrigeration cycle of the fluorine pump is adopted to dissipate heat of the cold plate type server in the cabinet.
When the intermediate heat exchanger breaks down, emergency refrigeration circulation is adopted to dissipate heat for the cold plate type server in the cabinet.
The invention has the beneficial effects that:
1) this device adopts the cold-storage spray cooling, the intercooling technique, even also can play fine radiating effect under high temperature environment, improve cold drawing server's radiating efficiency greatly, compressor refrigeration cycle, fluorine pump refrigeration cycle is used alone under different temperatures, can reach the biggest heat dissipation purpose with the energy consumption of minimum, energy saving and consumption reduction's purpose has been played, emergent refrigeration cycle's setting can be when the compressor breaks down, continue to dispel the heat for cold drawing server, guarantee the normal operating of server, the device's reliability has been improved greatly.
2) This device returns liquid looped netowrk and conveniently collects and carry refrigeration cycle with the heat in the rack, to fluoridizing the liquid condensation, guarantees to fluoridize the liquid and dispel the heat to the server once more, supplies the liquid looped netowrk to guarantee that the fluoridizing liquid after the cooling can be even input to the rack, has improved the radiating efficiency of server.
3) The compressor refrigeration cycle of the device can cool the fluorinated liquid when the temperature in the machine cabinet reaches more than 35 ℃, so that the heat dissipation quality of the server in the machine cabinet is ensured, the heat dissipation efficiency is greatly improved, and the normal work of the server is ensured.
4) The condenser of the device can cool the refrigerant, and can absorb the temperature of the fluorinated liquid in the cooling coil pipe when the refrigerant enters the middle heat exchanger, so that the fluorinated liquid is cooled, the cooling effect is greatly improved, and the normal work of the server is ensured; the condenser is used for cooling the refrigerant, when guaranteeing that the refrigerant lies in the cooling coil contact, can absorb the heat of the interior liquid of fluoridizing of cooling coil to realize the purpose of the liquid of fluoridizing of cooling, guaranteed that the liquid of fluoridizing can continue to dispel the heat to the server in the rack, improved the radiating efficiency greatly, guaranteed the radiating quality.
5) This device fluorine pump refrigeration cycle can play the purpose of cooling fluoride liquid, guarantees to fluoridize the heat that the server distributed out in the liquid can absorb the rack again.
6) This device third fluorine pump, setting of fourth fluorine pump guarantee when first fluorine pump and second fluorine pump go wrong, fluorine pump refrigeration circulation can continue to go on to normal heat dissipation has been guaranteed, the normal operating of server has been guaranteed.
7) The emergent cooling cycle of this device can guarantee to break down at the compressor after, can continue to dispel the heat for server in the rack, prevents that the server from appearing the phenomenon of dying because of the high temperature, has guaranteed the normal operating of server, has improved the radiating effect.
8) The setting of this device connecting pipe can the bypass supply return both sides fluoridize the liquid flow to balanced supply return both sides pressure guarantees to fluoridize the normal circulation of liquid, and the setting of fourth solenoid valve is convenient for control as required supplies return both sides to fluoridize the bypass of liquid.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is an enlarged view of the invention at A in FIG. 1.
In the figure: 1. a condensing heat exchanger; 2. a spraying device; 3. a cold spray electric valve; 4. a direct injection electric valve; 5. a water replenishing electric valve; 6. a tap water pipe joint; 7. a booster pump; 8. a cold storage water tank; 9. a first check valve; 10. a compressor; 11. a first solenoid valve; 12. a first fluorine pump; 13. a third pump; 14. a third electromagnetic valve; 15. a second one-way valve; 16. a second expansion valve; 17. a second fluorine pump; 18. a second liquid storage tank; 19. a third expansion valve; 20. a fourth solenoid valve; 21. a first liquid storage tank; 22. a cabinet; 23. a power pump; 24. a liquid supply ring network; 25. a liquid return ring network; 26. a connecting pipe; 27. a fourth fluorine pump; 28. a fifth solenoid valve; 29. a cooling coil; 30. a second solenoid valve; 31. a first expansion valve; 32. a liquid level detection device; 33. a fan; 34. a water inlet pipe; 35. a cold water heat exchanger; 36. a cold storage water pump; 37. and (5) discharging a water pipe.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to fig. 1-2, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
A heat dissipation system of a cold plate server and a control method thereof comprise a compressor refrigeration cycle, a fluorine pump refrigeration cycle and an emergency refrigeration cycle, wherein the compressor refrigeration cycle, the fluorine pump refrigeration cycle and the emergency refrigeration cycle are communicated with each other, and one of three refrigeration cycle modes is selected according to the external temperature.
The device also comprises a liquid return ring network 25, a liquid supply ring network 24 and a machine cabinet 22, wherein the input end of the liquid return ring network 25 is connected with the machine cabinet 22, the output end of the liquid return ring network 25 is connected with the input end of the refrigeration cycle of the compressor, the input end of the liquid supply ring network 24 is connected with the output end of the refrigeration cycle of the compressor, wherein, the output end and the input end of the compression refrigeration cycle, the fluorine pump refrigeration cycle and the emergency refrigeration cycle are the same, the output end of the liquid supply looped network 24 is connected with the machine cabinet 22, and the power pump 23 is arranged on the pipeline between the liquid return ring network 25 and the cabinet 22, the cabinet 22 is filled with the fluorinated liquid, the liquid return ring network 25 is convenient for collecting and conveying the heat in the cabinet 22 to the refrigeration cycle, the fluorinated liquid is condensed, the fluorinated liquid is guaranteed to radiate the server again, the liquid supply ring network 24 guarantees that the cooled fluorinated liquid can be uniformly input into the cabinet 22, and the radiating efficiency of the server is improved.
Wherein, power pump 23 is used for providing power for fluoridizing the liquid after the cooling can spray in the rack, guarantee to fluoridize the even that the liquid sprayed, and improved the cooling effect, supply liquid looped netowrk 24 to make things convenient for the liquid of fluoridizing after the cooling to evenly spill in the rack, guarantee that each server in the rack can both obtain the cooling, return liquid looped netowrk 25 can concentrate the liquid of fluoridizing after the absorbed heat in the rack and get up and cool off, guaranteed the cooling efficiency and the cooling quality of fluoridizing the liquid.
The compressor refrigeration cycle comprises a compressor 10, a cold accumulation water tank 8, a condenser, an intermediate heat exchanger, a first electromagnetic valve 11, a fifth electromagnetic valve 28, a first expansion valve 31, a second expansion valve 16, a first liquid storage tank 21, a second fluorine pump 17, a first one-way valve 9, a second liquid storage tank 18, a third expansion valve 19 and a pipeline, wherein the input end of the intermediate heat exchanger is connected with the output end of a liquid return ring pipe, the output end of the intermediate heat exchanger is respectively connected with the input end of the condenser and the first liquid storage tank 21, a cooling coil 29 is arranged in the middle of the intermediate heat exchanger, one end of the cooling coil 29 is connected with the output end of a liquid return ring network 25, the other end of the cooling coil is connected with the first liquid storage tank 21, the condenser, the compressor 10 and the intermediate heat exchanger are connected in pairs to form a closed ring, the first liquid storage tank 21 is connected with the second liquid storage tank 18 through the second fluorine pump 17, the second liquid storage tank 18 is connected with the liquid supply ring network 24 through a third expansion valve 19, the first electromagnetic valve 11 and the second expansion valve 16 are sequentially installed on a pipeline between the compressor 10 and the intermediate heat exchanger, the first check valve 9 is installed on a pipeline between the compressor 10 and the condenser, the first expansion valve 31 is installed on a pipeline between the condenser and the intermediate heat exchanger, the fifth electromagnetic valve 28 is installed on a pipeline between the intermediate heat exchanger and the liquid return ring network 25, the compressor 10 is the variable frequency compressor 10, and the fluorinated liquid can be cooled in the refrigeration cycle of the compressor when the temperature in the cabinet 22 reaches over 35 ℃, so that the heat dissipation quality of a server in the cabinet 22 is ensured, the heat dissipation efficiency is greatly improved, and the normal work of the server is ensured.
The condenser includes box, condensation heat exchanger 1, cold-storage water tank 8, spray set 2, auxiliary conduit, fan 33, the top at the box is installed to condensation heat exchanger 1, fan 33 installs the top at condensation heat exchanger 1, spray set 2 installs on the lateral wall of box, and is not less than condensation heat exchanger 1's height, cold-storage water tank 8 installs in condensation heat exchanger 1's bottom, has booster pump 7 and liquid level detection device 32 at cold-storage water tank 8's internally mounted, booster pump 7 installs in cold-storage water tank 8's bottom and cooperatees with spray set 2, auxiliary conduit's one end is installed on cold-storage water tank 8, and the other end is installed on spray set 2, installs moisturizing motorised valve 5 and directly spouts motorised valve 4 on auxiliary conduit in proper order, and installs running water pipeline interface 6 on auxiliary conduit between moisturizing motorised valve 5 and the directly spout motorised valve 4, install cold spraying motorised valve 3 on spray set 2, the motorised spray valve is installed between auxiliary line and booster pump 7, and the condenser can cool off the refrigerant, can play the purpose that absorbs fluoride liquid temperature among the cooling coil 29 when guaranteeing that the refrigerant gets into middle part heat exchanger to the realization is to fluoride liquid refrigerated purpose, has improved the cooling effect greatly, has guaranteed the normal work of server.
Wherein, liquid level detection device 32 can detect the liquid level of cooling water in cold-storage water tank 8, and the staff absolutely need add the cooling water in to cold-storage water tank 8.
The tap water pipeline connector 5 is used for being connected with a tap water pipe, tap water is conveniently sprayed on the condensation heat exchanger 1, heat dissipation effect is improved for refrigerant heat dissipation, and heat dissipation quality is guaranteed.
The condenser still includes outlet pipe 37, inlet tube 34, cold-storage water pump 36 and cold water heat exchanger 35, the one end of inlet tube 34 is installed in one side of cold-storage water tank 8, and the other end passes through cold-storage water pump 36 and installs the output at cold water heat exchanger 35, the one end of outlet tube 37 is installed in the top of one side inlet tube 34 of cold-storage water tank 8, and the input at cold water heat exchanger 35 is installed to the other end of outlet tube 37, cold-storage water pump 36 is installed on outlet tube 37, and the condenser is used for cooling the refrigerant, when guaranteeing that the refrigerant lies in cooling coil 29 contact, can absorb the heat of the interior liquid of fluoridizing of cooling coil 29 to realize the purpose of cooling fluoridizing the liquid, guaranteed that the liquid of fluoridizing can continue to dispel the heat to the server in the rack 22, improved the radiating efficiency greatly, guaranteed the radiating quality.
The fluorine pump refrigeration cycle comprises a first fluorine pump 12, a condenser, a second expansion valve 16 and an intermediate heat exchanger, wherein the first fluorine pump 12, the condenser and the intermediate heat exchanger are connected in pairs to form a closed loop, one end of the first fluorine pump is connected with the condenser, the other end of the first fluorine pump is connected with the intermediate heat exchanger through the second expansion valve 16, the fluorine pump refrigeration cycle further comprises a first liquid storage tank 21, a second fluorine pump 17, a second one-way valve 15, a second liquid storage tank 18 and a third expansion valve 19, the fluorine pump refrigeration cycle can achieve the purpose of cooling the fluorine liquid, the fluorine liquid can absorb heat emitted by a server in a cabinet 22 again, the first liquid storage tank 21 and the second liquid storage tank 18 are used for balancing pressure in a pipeline, the cooled fluorine liquid can smoothly return to the cabinet to dissipate heat of the server in the cabinet, the second one-way valve 15 is arranged to prevent the cooled fluorine liquid from flowing back to the intermediate heat exchanger, the cooled fluorinated liquid is ensured to return to the cabinet again, so that the heat dissipation efficiency is greatly improved and the heat dissipation quality is ensured for the heat dissipation of the server.
The third fluorine pump 13 is connected in parallel on the first fluorine pump 12, and the first fluorine pump 12 and the third fluorine pump 13 adopt one-for-one setting, the fourth fluorine pump 27 is connected in parallel on the second fluorine pump 17, and the fourth fluorine pump 27 adopts one-for-one setting, the first fluorine pump 12, the second fluorine pump 17, the third fluorine pump 13, the fourth fluorine pump 27 are frequency conversion fluorine pumps, the setting of the third fluorine pump 13 and the fourth fluorine pump 27 guarantees that when the first fluorine pump 12 and the second fluorine pump 17 have problems, the fluorine pump refrigeration cycle can be continued, thereby the normal heat dissipation is guaranteed, and the normal operation of the server is guaranteed.
Emergent refrigeration cycle includes condenser, second solenoid valve 30, first fluorine pump 12, third solenoid valve 14, second liquid storage pot 18 and third expansion valve 19, the condenser input is connected with liquid looped netowrk 25 through second solenoid valve 30, and the output of condenser is connected with the input of first fluorine pump 12, the output of first fluorine pump 12 is connected with second liquid storage pot 18 through third solenoid valve 14, second liquid storage pot 18 is connected with liquid looped netowrk 24 through third expansion valve 19, and emergent cooling cycle can guarantee to break down after compressor 10, can continue to dispel the heat for server in the rack 22, prevents that the server from appearing the phenomenon of downtime because of the high temperature, has guaranteed the normal operating of server, has improved the radiating effect.
Still include the connecting pipe 26, the output at the liquid looped netowrk 25 is installed back to the one end of connecting pipe 26, and the input at supplying liquid looped netowrk 24 is installed to the other end, installs fourth solenoid valve 20 on connecting pipe 26, and the setting of connecting pipe 26 can the bypass supply return the fluorinated liquid flow of both sides to balanced supply return both sides pressure guarantees the normal circulation of fluorinated liquid, and the bypass of supplying return both sides fluorinated liquid is convenient for control as required to the setting of fourth solenoid valve 20.
A control method of a heat dissipation system of a cold plate server comprises the following steps:
when the outdoor temperature is higher than 35 ℃, a compressor refrigeration cycle mode is adopted to radiate the heat of the cold plate server in the cabinet 22.
When the outdoor temperature is not less than 25 ℃ and not more than 35 ℃, a compressor refrigeration cycle mode is also adopted, and the difference is that the condenser spraying adopts a tap water direct spray cooling mode, at the moment, the cold storage water tank 8, the cold storage water pump 36, the booster pump 7 and the cold spray electric valve 3 are all closed, the direct spray electric valve 4 is opened, and tap water pressure is adopted to directly spray and condense to realize the efficient cooling of the condenser.
When the outdoor temperature is less than or equal to 25 ℃, the refrigeration cycle of the compressor is closed, and the refrigeration cycle of the fluorine pump is adopted to dissipate heat of the cold plate server in the cabinet 22.
When the intermediate heat exchanger fails, emergency refrigeration cycles are used to dissipate heat for the cold plate servers within the cabinet 22.
This device adopts cold-storage spray cooling, the intercooling technique, improve cold drawing server's radiating effect greatly, reach energy saving and consumption reduction purpose, compressor refrigeration cycle, fluorine pump refrigeration cycle is used alone under different temperatures, can minimum energy consumption reach the biggest heat dissipation purpose, energy saving and consumption reduction's purpose has been played, emergent refrigeration cycle's setting can be when compressor 10 breaks down, continue to dispel the heat for cold drawing server, guarantee the normal operating of server, the device's reliability has been improved greatly.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (10)
1. The heat dissipation system of the cold plate type server comprises a compressor refrigeration cycle and a fluorine pump refrigeration cycle, and is characterized by further comprising an emergency refrigeration cycle, wherein the compressor refrigeration cycle, the fluorine pump refrigeration cycle and the emergency refrigeration cycle are communicated with each other, and one of three refrigeration cycle modes is selected and used according to the external temperature.
2. The heat dissipation system of a cold plate server according to claim 1, further comprising a liquid return ring network, a liquid supply ring network, and a cabinet, wherein an input end of the liquid return ring network is connected to the cabinet, an output end of the liquid return ring network is connected to an input end of a refrigeration cycle of the compressor, an input end of the liquid supply ring network is connected to an output end of the refrigeration cycle of the compressor, wherein output ends and input ends of the compression refrigeration cycle, the refrigeration cycle of the fluorine pump, and the refrigeration cycle of the emergency refrigeration cycle are the same, an output end of the liquid supply ring network is connected to the cabinet, a power pump is installed on a pipeline between the liquid return ring network and the cabinet, and the cabinet is filled with the fluorinated liquid.
3. The heat dissipation system of a cold plate server as claimed in claim 2, wherein the compressor refrigeration cycle comprises a compressor, a cold storage water tank, a condenser, an intermediate heat exchanger, a first solenoid valve, a fifth solenoid valve, a first expansion valve, a second expansion valve, a first liquid storage tank, a second fluorine pump, a first check valve, a second liquid storage tank, a third expansion valve and a pipeline, the input end of the intermediate heat exchanger is connected with the output end of the liquid return loop, the output end of the intermediate heat exchanger is connected with the input end of the condenser, a cooling coil is installed in the middle of the intermediate heat exchanger, one end of the cooling coil is connected with the output end of the liquid return loop, the other end of the cooling coil is connected with the first liquid storage tank, the condenser, the compressor and the intermediate heat exchanger are connected in pairs to form a closed loop, the first liquid storage tank is connected with the second liquid storage tank through the second fluorine pump, the second liquid storage tank is connected with the liquid supply ring network through a third expansion valve, the first electromagnetic valve and the second expansion valve are sequentially installed on a pipeline between the compressor and the intermediate heat exchanger, the first one-way valve is installed on the pipeline between the compressor and the condenser, the first expansion valve is installed on the pipeline between the condenser and the intermediate heat exchanger, the fifth electromagnetic valve is installed on the pipeline between the intermediate heat exchanger and the liquid return ring network, and the compressor is a variable frequency compressor.
4. The heat dissipation system of a cold plate server as claimed in claim 3, wherein the condenser comprises a box body, a condensation heat exchanger, a cold storage water tank, a spraying device, an auxiliary pipeline, and a fan, the condensation heat exchanger is installed at the top of the box body, the fan is installed above the condensation heat exchanger, the spraying device is installed on the side wall of the box body and is not lower than the height of the condensation heat exchanger, the cold storage water tank is installed at the bottom of the condensation heat exchanger, a booster pump and a liquid level detection device are installed inside the cold storage water tank, the booster pump is installed at the bottom of the cold storage water tank and is matched with the spraying device, one end of the auxiliary pipeline is installed on the cold storage water tank, the other end of the auxiliary pipeline is installed on the spraying device, a water replenishing electric valve and a direct injection electric valve are sequentially installed on the auxiliary pipeline, and a tap water pipeline interface is installed between the water replenishing electric valve and the direct injection electric valve on the auxiliary pipeline, the spraying device is provided with a cold spraying electric valve, and the electric spraying valve is arranged between the auxiliary pipeline and the booster pump.
5. The cooling system of a cold plate server as claimed in claim 4, wherein the condenser further comprises a water outlet pipe, a water inlet pipe, a cold storage water pump and a cold water heat exchanger, wherein one end of the water inlet pipe is installed at one side of the cold storage water tank, the other end of the water inlet pipe is installed at the output end of the cold water heat exchanger through the cold storage water pump, one end of the water outlet pipe is installed above the water inlet pipe at one side of the cold storage water tank, the other end of the water outlet pipe is installed at the input end of the cold water heat exchanger, and the cold storage water pump is installed on the water outlet pipe.
6. The heat dissipation system of a cold plate server according to claim 1, wherein the fluorine pump refrigeration cycle comprises a first fluorine pump, a condenser, a second expansion valve, and an intermediate heat exchanger, wherein the first fluorine pump, the condenser, and the intermediate heat exchanger are connected in pairs to form a closed loop, one end of the first fluorine pump is connected to the condenser, and the other end of the first fluorine pump is connected to the intermediate heat exchanger through the second expansion valve, and further comprising a first liquid storage tank, a second fluorine pump, a second check valve, a second liquid storage tank, and a third expansion valve.
7. The heat dissipation system of claim 6, wherein the first fluorine pump is connected in parallel with the third fluorine pump, the first fluorine pump and the third fluorine pump are in a one-to-one configuration, the second fluorine pump is connected in parallel with the fourth fluorine pump, the fourth fluorine pump is in a one-to-one configuration, and the first fluorine pump, the second fluorine pump, the third fluorine pump and the fourth fluorine pump are all variable frequency fluorine pumps.
8. The heat dissipation system of a cold plate server according to claim 1, wherein the emergency refrigeration cycle includes a condenser, a second solenoid valve, a first fluorine pump, a third solenoid valve, a second liquid storage tank, and a third expansion valve, wherein an input end of the condenser is connected to the liquid return ring network through the second solenoid valve, an output end of the condenser is connected to an input end of the first fluorine pump, an output end of the first fluorine pump is connected to the second liquid storage tank through the third solenoid valve, and the second liquid storage tank is connected to the liquid supply ring network through the third expansion valve.
9. The heat dissipation system of a cold plate server as claimed in claim 2, further comprising a connection pipe, wherein one end of the connection pipe is installed at the output end of the liquid return ring network, the other end of the connection pipe is installed at the input end of the liquid supply ring network, and a fourth solenoid valve is installed on the connection pipe.
10. A method of controlling a heat dissipation system of a cold plate server, according to any one of claims 1 to 9, comprising the steps of:
when the outdoor temperature is higher than 35 ℃, a compressor refrigeration circulation mode is adopted to radiate the heat of the cold plate server in the cabinet;
when the outdoor temperature is not less than 25 ℃ and not more than 35 ℃, a compressor cooling mode is also adopted, and the difference is that the condenser spraying adopts a tap water direct spray cooling mode, at the moment, the cold accumulation water tank, the cold accumulation water pump, the booster pump and the cold spray electric valve are all closed, the direct spray electric valve is opened, and the tap water pressure is adopted for direct spray condensation to realize the efficient cooling of the condenser;
when the outdoor temperature is less than or equal to 25 ℃, closing the refrigeration cycle of the compressor, and adopting the refrigeration cycle of the fluorine pump to radiate heat of the cold plate type server in the cabinet;
when the intermediate heat exchanger breaks down, emergency refrigeration circulation is adopted to dissipate heat for the cold plate type server in the cabinet.
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