CN114867301B - Cooling system for data center and control method thereof - Google Patents
Cooling system for data center and control method thereof Download PDFInfo
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- CN114867301B CN114867301B CN202210469944.8A CN202210469944A CN114867301B CN 114867301 B CN114867301 B CN 114867301B CN 202210469944 A CN202210469944 A CN 202210469944A CN 114867301 B CN114867301 B CN 114867301B
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- 238000001816 cooling Methods 0.000 title claims abstract description 198
- 238000000034 method Methods 0.000 title claims abstract description 16
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 140
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 140
- 239000011737 fluorine Substances 0.000 claims abstract description 140
- 239000007788 liquid Substances 0.000 claims abstract description 93
- 238000005057 refrigeration Methods 0.000 claims abstract description 46
- 238000009423 ventilation Methods 0.000 claims abstract description 7
- 238000005507 spraying Methods 0.000 claims description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000000110 cooling liquid Substances 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000010977 unit operation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 description 7
- 238000012856 packing Methods 0.000 description 6
- 230000002745 absorbent Effects 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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 cooling system for a data center and a use method thereof, wherein the data center comprises a liquid cooling cabinet and a cold plate server arranged in the liquid cooling cabinet; the system comprises: the first cold source module and the second cold source module are connected with a cold plate of the cold plate server to refrigerate the cold plate; the second cold source module comprises a fluorine cold unit which is communicated with the fluorine cold back plate to carry out fluorine ventilation refrigeration on the fluorine cold back plate, a first refrigeration unit for cooling the fluorine cold unit, and a second refrigeration unit which is communicated with the first cold source module to refrigerate the cold plate when the first cold source module fails; when the first cold source module is monitored to be faulty, the second refrigeration unit communicated with the first cold source module is adopted to replace the first cold source module to refrigerate the cold plate, whether the first refrigeration unit is started to strengthen the refrigeration effect of the fluorine cold unit is judged according to the outdoor wet bulb temperature monitored in real time, the heat is dissipated to the data center according to actual needs, and waste is avoided while the heat dissipation effect is met.
Description
Technical Field
The invention relates to the field of data centers, in particular to a cooling system for a data center and a control method thereof.
Background
A data center is a complex set of facilities. It includes not only computer systems and other devices (e.g., communication and storage systems) that are compatible therewith, but also redundant data communication connections, environmental control devices, monitoring devices, and various security arrangements. The container data center is used as a standard module constructed by the data center, and IT facilities such as calculation, storage, network resources and the like are designed into one container, so that the application is more and more wide.
Along with the rapid development of mobile data, cloud computing and big data service at present, the construction scale of a data center is larger and larger, the heating value of a server device chip is also continuously increased, and the energy-saving requirement of the data center is higher and higher. Particularly, in the container data center deployed in early stage, due to the fact that the service upgrading is involved, the single cabinet density is higher and higher, and the traditional air cooling mode is high in power consumption and gradually cannot meet the heat dissipation requirement of IT equipment in the data center. Therefore, it is necessary to design a high-efficiency integrated liquid cooling data center, which is suitable for upgrading and modifying the traditional service and realizes high efficiency and energy saving.
Disclosure of Invention
The invention aims at: a cooling system for a data center and a control method thereof are provided, which can improve heat dissipation efficiency and save energy.
The technical scheme of the invention is as follows: in a first aspect, the present invention provides a cooling system for a data center including a liquid-cooled cabinet and a cold plate server disposed within the liquid-cooled cabinet; the cooling system includes: the fluorine cold backboard is arranged on the side wall of the liquid cooling cabinet, and the first cold source module and the second cold source module are connected with the cold plate of the cold plate server so as to refrigerate the cold plate; the second cold source module comprises a fluorine cold unit which is communicated with the fluorine cold back plate to perform fluorine ventilation and refrigeration on the fluorine cold back plate, a first refrigeration unit which cools the fluorine cold unit, and a second refrigeration unit which is communicated with the first cold source module to cool the cold plate when the first cold source module fails.
In a preferred embodiment, the cooling system further comprises a liquid separator and a liquid collector, the liquid separator and the liquid collector are respectively mounted on two sides of each liquid cooling cabinet, and the cold plate server is respectively connected with the liquid separator and the liquid collector through hoses.
In a preferred embodiment, a fan wall is further disposed on the side surface of the liquid cooling cabinet, one end of the fluorine cold back plate is attached to the outer side surface of the liquid cooling cabinet, and the other end of the fluorine cold back plate is attached to the fan wall.
In a preferred embodiment, the first heat sink module includes: the first cabinet body is provided with a first air outlet at the top and a first air inlet close to the bottom at the side surface;
the first exhaust fan is arranged between the water baffle and the first exhaust outlet;
the first spraying mechanism and the first exhaust fan are respectively arranged at two sides of the water baffle;
the filler is arranged on one side, far away from the water baffle, of the first spraying mechanism;
the first cooling coil is arranged on one side of the filler, which is far away from the first spraying mechanism, and is communicated with the cold plate through the power unit;
the first water collecting tank is arranged at the bottom of the first cabinet body.
In a preferred embodiment, the second heat sink module includes: the side surfaces of the second cabinet body and the third cabinet body are attached and arranged and communicated with each other; the fluorine cooling unit comprises a first fluorine cooling mechanism and a second fluorine cooling mechanism;
the first fluorine cooling mechanism, the first refrigerating unit and the second refrigerating unit are arranged in the second cabinet body, and the second fluorine cooling mechanism is arranged in the third cabinet body.
In a preferred embodiment, the first fluorine cooling mechanism comprises:
the device comprises a first condenser, a fluorine-passing connecting pipe, a fluorine pump, a first electromagnetic valve and a second electromagnetic valve; one end of the fluorine-passing connecting pipe is communicated with the first condenser and the fluorine cold backboard, and the fluorine pump, the first electromagnetic valve and the second electromagnetic valve are respectively arranged on the fluorine-passing connecting pipe;
the first refrigeration unit includes: the second exhaust fan is arranged at the top end inside the second cabinet body;
and the second spraying mechanism is positioned between the second exhaust fan and the second spraying mechanism, and the second spraying mechanism sprays the first condenser facing the first condenser.
In a preferred embodiment, the second refrigeration unit includes:
the cooling pipe mechanism comprises a second cooling coil pipe and a cooling liquid connecting pipe, one end of the second cooling coil pipe is communicated with the cold plate through the cooling liquid connecting pipe, the other end of the second cooling coil pipe is communicated with the first cold source module through the cooling liquid connecting pipe, and the cooling pipe mechanism and the second exhaust fan are respectively arranged at two sides of the second spraying mechanism;
the fin plates are connected with the second cooling coil pipe and circumferentially arranged along the second cooling coil pipe;
the second water collecting tank is arranged at the bottom of the second cabinet body; the top of the second cabinet body is provided with a second air outlet, and the bottom of the side surface of the second cabinet body is provided with a second air inlet;
the second fluorine cooling mechanism comprises:
the third exhaust fan is arranged on the side surface of the third cabinet body and is perpendicular to the second exhaust fan;
the second condenser is arranged at the top of the inner part of the third cabinet body;
the compressor is arranged at the bottom of the third cabinet body, the second condenser, the fluorine cold back plate and the compressor are respectively connected through pipelines to form a closed loop, a third electromagnetic valve is arranged on a pipeline between the second condenser and the fluorine cold back plate, and a fourth electromagnetic valve is arranged on a pipeline between the compressor and the fluorine cold back plate;
a third spray mechanism facing the second condenser to spray it;
the third air inlet is formed in the side face of the third cabinet body, and the third spraying mechanism is located between the third air inlet and the condenser;
the third water collecting tank is arranged at the bottom inside the third cabinet body.
In a preferred embodiment, the system further comprises a container, wherein the data center, the first cold source module and the second cold source module are all arranged in the container, and a gap is arranged between the data center and the inner wall of the container.
In a second aspect, the present invention also provides a cooling system control method for a data center, using the cooling system for a data center according to any one of the first aspects, the method comprising:
starting a first cold source module to cool a cold plate of the liquid cooling server according to a preset operation rule, and starting a fluorine cooling unit to cool a side surface fluorine cooling back plate of the liquid cooling cabinet by introducing fluorine;
monitoring the real-time outdoor wet bulb temperature and the real-time running condition of the first cold source module;
and determining whether a second refrigeration unit needs to be started to replace the first refrigeration unit for refrigerating the cold plate based on the running condition of the first refrigeration source module, and determining whether the running mode of the fluorine cold unit needs to be switched based on the real-time outdoor wet bulb temperature.
11. In a preferred embodiment, the determining whether to start the second refrigeration unit to replace the first refrigeration unit for refrigerating the cold plate based on the operation condition of the first refrigeration module includes:
judging whether the operation condition of the first cold source module is abnormal or not;
if yes, a second refrigeration unit is started to replace the first cold source module to refrigerate the cold plate;
if not, maintaining the first cold source module to operate as the cold plate for refrigeration;
the determining whether the fluorine cooling unit operation mode needs to be switched based on the real-time outdoor wet bulb temperature comprises:
judging whether a preset threshold value is in a numerical value interval formed by the initial outdoor wet bulb temperature and the real-time outdoor wet bulb temperature;
if yes, switching the operation mode of the fluorine cooling unit;
if not, maintaining the current operation mode of the fluorine cooling unit.
The invention has the advantages that: the cooling system comprises a liquid cooling cabinet and a cold plate server arranged in the liquid cooling cabinet; the cooling system includes: the first cold source module and the second cold source module are connected with a cold plate of the cold plate server to refrigerate the cold plate; the second cold source module comprises a fluorine cold unit which is communicated with the fluorine cold back plate to carry out fluorine ventilation refrigeration on the fluorine cold back plate, a first refrigeration unit for cooling the fluorine cold unit, and a second refrigeration unit which is communicated with the first cold source module to refrigerate the cold plate when the first cold source module fails; when the intelligent cooling system is used, the first cold source module is used for refrigerating the cold plate of the cold plate server, the fluorine cooling unit is used for introducing fluorine to cool the side surface fluorine cold back plate of the liquid cooling cabinet, the second refrigerating unit communicated with the first cold source module is used for replacing the first cold source module for refrigerating the cold plate when the first cold source module is monitored to be faulty in real time, whether the first refrigerating unit is started or not is judged according to the outdoor wet bulb temperature monitored in real time to strengthen the refrigerating effect of the fluorine cooling unit, different units can be started according to actual needs for radiating heat of a data center, and energy sources are saved and waste is avoided when the radiating effect is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a cooling system for a data center according to one embodiment of the present invention;
FIG. 2 is a top view of a cooling system for a data center according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of a second heat sink module in a cooling system for a data center according to an embodiment of the present invention;
FIG. 4 is a flow chart of a cooling system control method for a data center according to a second embodiment of the present invention;
wherein: 110. a data center; 111. a liquid cooling cabinet; 112. a cold plate server; 113. a first busbar; 114. a second busbar; 210. a fluorine-cooled back plate; 220. a first cold source module; 221. a first cabinet; 222. a first exhaust outlet; 223. a first air inlet; 224. a water baffle; 225. a first exhaust fan; 226. a first spray mechanism; 227. a filler; 228. a first cooling coil; 229. a first catch basin; 230. a second cold source module; 231. a fluorine cooling unit; 2311. a first fluorine cooling mechanism; 23111. a first condenser; 23112. a fluorine connection pipe; 23113. a fluorine pump; 23114. a first electromagnetic valve; 23115. a second electromagnetic valve; 2312. a second fluorine cooling mechanism; 23121. a third exhaust fan; 23122. a second condenser; 23123. a compressor; 23124. a third electromagnetic valve; 23125. a fourth electromagnetic valve; 23126. a third spraying mechanism; 23127. a third air inlet; 23128. a third catch basin; 232. a first refrigeration unit; 2321. a second exhaust fan; 2322. a second spraying mechanism; 233. a second refrigeration unit; 2331. a cooling tube mechanism; 23311. a second cooling coil; 23312. a cooling liquid connecting pipe; 2332. a fin plate; 2333. a second catch basin; 2334. a second air inlet; 2335. a horizontal spraying mechanism; 234. a second cabinet; 235. a third cabinet; 240. a container; 241. a partition plate; 242. a ventilation screen; 250. a knockout; 260. a liquid collector; 270. a fan wall.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
As described in the background art, the construction scale of the current data center is larger and larger, the heat productivity of the server device chip is also increased, and the energy-saving requirement of the data center is higher and higher. Particularly, in the container data center deployed in early stage, due to the fact that the service upgrading is involved, the single cabinet density is higher and higher, and the traditional air cooling mode is high in power consumption and gradually cannot meet the heat dissipation requirement of IT equipment in the data center. Therefore, it is necessary to design a high-efficiency integrated liquid cooling data center, which is suitable for upgrading and modifying the traditional service and realizes high efficiency and energy saving. In order to solve the problems, the invention creatively provides a cooling system for a data center and a control method thereof, when the cooling system is used, a first cold source module or a second cold source module is judged and started according to the outdoor wet bulb temperature monitored in real time, and two cold source modules are arranged, so that different cold source modules can be called according to actual needs to dissipate heat of the data center, and energy sources are saved and waste is avoided while the heat dissipation effect is met. The cooling system for a data center and the control method thereof according to the present invention will be described in detail with reference to specific embodiments.
Embodiment one: the present embodiment provides a cooling system for a data center, referring to fig. 1 and 2, a data center 110 includes a liquid cooling cabinet 111 and a cold plate server 112 disposed in the liquid cooling cabinet; the cooling system includes: the first cold source module 220 and the second cold source module 230 are connected with the cold plate of the cold plate server 112 to refrigerate the cold plate; the second cold source module 230 includes a fluorine cooling unit 231 communicating with the fluorine cold back plate 210 to cool the fluorine cold back plate 210 by passing fluorine therethrough, a first cooling unit 232 cooling the fluorine cooling unit 231, and a second cooling unit 233 communicating with the first cold source module 220 to cool the cold plate when the first cold source module 220 fails.
In one embodiment, the system further comprises a container 240, and the data center 110, the first cold source module 220 and the second cold source module 230 are all disposed in the container 240, and a gap is disposed between the data center 110 and an inner wall of the container 240 for heat dissipation. Specifically, the first cold source module 220, the data center 110 and the second cold source module 230 are sequentially arranged in the container 240 along the horizontal direction, and the first cold source module 220, the data center 110 and the second cold source module 230 are respectively spaced by the partition plates 241, the partition plates 241 are radially arranged along the container 240, the edges of the partition plates are overlapped with the inner wall of the container 240, the first cold source module 220 and the second cold source module 230 are respectively arranged at two ends of the inside of the container 240, and the end faces of the two ends of the container 240 are embedded with the ventilation net 242, so that the first cold source module and the second cold source module exchange heat with the outside. The data center 110 is disposed in the middle of the container 240, with the top of the container 240 sealed, and in particular, the top of the container 240 between the baffles 241.
In one embodiment, the data center 110 further includes a power unit disposed on top of the liquid-cooled cabinet 111 for powering the liquid-cooled cabinet 111. Specifically, the power supply unit includes a first busbar 113 and a second busbar 114 mounted on top of the liquid-cooled cabinet 111. Specifically, there are at least two liquid cooling cabinets 111, and the height and depth of the liquid cooling cabinets 111 are all the same, and at least two cold plate servers 112 are disposed in each liquid cooling cabinet 111.
Preferably, the cooling system further comprises a liquid separator 250 and a liquid collector 260, wherein the liquid separator 250 and the liquid collector 260 are respectively arranged on two sides of each liquid cooling cabinet 111, and the cold plate server 112 is respectively connected with the liquid separator 250 and the liquid collector 260 through hoses. Specifically, the sides of the liquid separator 250 and the liquid collector 260 are provided with a plurality of quick connectors, and two ends of each cold plate server 112 are respectively connected with the quick connectors through hoses, so that two ends of the cold plate server 112 are respectively connected with the liquid separator 250 and the liquid collector 260. The liquid separator 250 is communicated with the liquid outlet of the first cold source module 220, the liquid collector 260 is communicated with the liquid inlet of the first cold source module 220, cooling liquid in the first cold source module 220 enters the liquid separator 250 through a pipeline, heat is absorbed in the cold plate of each cold plate server 112 from each quick joint of the liquid separator 250, the cooling liquid after heat absorption enters the liquid collector 260 in a gathering way, and flows into the first cold source module 220 from the liquid collector 260 for heat exchange and cooling again, and a circulating pump and an electric valve are arranged on the pipeline to realize cooling liquid circulation.
Preferably, a fan wall 270 is further disposed on the side of the liquid cooling cabinet 111, and one end of the fluorine cold backboard 210 is attached to the outer side of the liquid cooling cabinet 111, and the other end is attached to the fan wall 270. The front side of the liquid cooling cabinet 111 is provided with a fluorine cold backboard 210 and a fan wall 270, the fluorine cold backboard 210 is arranged between the liquid cooling cabinet 111 and the fan wall 270, one end of the fluorine cold backboard 210 is attached to the side wall of the liquid cooling cabinet 111, and the other end of the fluorine cold backboard is attached to the fan wall 270, so that heat transfer is performed rapidly and efficiently, and the temperature of the cold board server 112 in the liquid cooling cabinet is reduced. About 80% of the heat generated from the data center 110 is taken away by the first or second heat sink modules 220 or 230, and the remaining heat is cooled by the fluorine cold back plate 210 and the fan wall 270.
Preferably, the first heat sink module 220 includes: the first cabinet 221, the top of the first cabinet 221 is provided with a first air outlet 222, and the side surface of the first cabinet 221 is provided with a first air inlet 223 adjacent to the bottom;
the water baffle 224, a first exhaust fan 225 is arranged between the water baffle 224 and the first exhaust outlet 222;
the first spraying mechanism 226, the first spraying mechanism 226 and the first exhaust fan 225 are respectively arranged at two sides of the water baffle 224; the first spraying mechanism 226 includes at least two nozzles, more specifically, the water baffle 224 is horizontally disposed, the first exhaust fan 225 is located above the water baffle 224, and at least two nozzles are horizontally arranged and located below the water baffle 224.
The packing 227, the packing 227 is arranged at one side of the first spraying mechanism 226 away from the water baffle 224, specifically, the packing 227 is arranged below the nozzle, and the nozzle sprays water to the packing;
the first cooling coil 228, the first cooling coil 228 is disposed on one side of the packing 227 away from the first spraying mechanism 226, i.e. the first cooling coil 228 is disposed below the packing 227, the first cooling coil 228 is in communication with the data center 110 through the power unit; specifically, the liquid inlet of the first cooling coil 228 is connected to the liquid trap 260 through a pipe, the liquid outlet is connected to the liquid separator 150 through a pipe, and the power unit includes a circulation pump, an electric valve, an electric balance valve and a manual water return ball valve (not shown) mounted on the pipe.
The first water collection tank 229, the first water collection tank 229 is arranged at the bottom of the first cabinet 221.
The first cooling coil 228, the circulation pump, the electric valve, the electric regulating balance valve, the manual backwater ball valve, the liquid separator 250, the liquid collector 260 and the cold plate server 112 form a closed system; the cooling liquid prepared by the first cold source module 220 is connected with a liquid separator 250 and a liquid collector 260 in the liquid cooling cabinet 111 in the data center 110 through pipelines, the cold plate server 112 connects a liquid outlet of the first cooling coil 228 with the liquid separator 250 in the liquid cooling cabinet 111 through pipelines, and connects a liquid inlet of the first cooling coil 228 with the liquid collector 260 in the liquid cooling cabinet 111 through pipelines; the cooling liquid is connected with a hose through a quick connector of the liquid separator 250 and enters the cold plate server 112 to absorb heat generated by the cold plate server 112, the cooling liquid after absorbing heat and raising temperature flows out from a water outlet of the cold plate server 112, enters the liquid collector 260 through the hose and the quick connector, then enters a water return main pipe through a water return ball valve, and then enters the first cooling coil pipe 228 in the first cold source module 220 for heat exchange and cooling under the action of a circulating pump. In particular, to ensure the balance of each of the dispensers 250 of the cooling liquid entering the liquid cooling cabinet 111, an electrically-controlled balance valve is provided in the inlet line (the line portion located before the cooling liquid flows into the dispenser 250) to control the hydraulic balance, flow rate and pressure. The top air outlet and the bottom air inlet of the first cabinet 221 exchange heat with the first cooling coil 228 and the heat exchange core under the spray cooling effect.
Preferably, referring to fig. 2 and 3, it is shown that: the second heat sink module 230 includes: a second cabinet 234 and a third cabinet 235 which are arranged in a side-by-side manner and are communicated with each other; the fluorine cooling unit 231 includes a first fluorine cooling mechanism 2311 and a second fluorine cooling mechanism 2312; the first fluorine cooling mechanism 2312, the first refrigerating unit 232 and the second refrigerating unit 233 are all arranged in the second cabinet 234, and the second fluorine cooling mechanism 2312 is arranged in the third cabinet 235.
Preferably, the first fluorine cooling mechanism 2311 includes:
a first condenser 23111, a fluorine-passing connection pipe 23112, a fluorine pump 23113, a first solenoid valve 23114 and a second solenoid valve 23115; one end of the fluorine-passing connecting pipe 23112 is communicated with the first condenser 23111 and the fluorine cold back plate 210, and a fluorine pump 23113, a first electromagnetic valve 23114 and a second electromagnetic valve 23115 are respectively arranged on the fluorine-passing connecting pipe 23112;
the first refrigerating unit 232 includes: the second exhaust fan 2321, the second exhaust fan 2321 is installed at the top end inside the second cabinet 234;
the second spraying mechanism 2322, the first condenser 23111 is located between the second exhaust fan 2321 and the second spraying mechanism 2322, and the second spraying mechanism 2322 sprays the first condenser 23111 facing thereto. Specifically, the second spraying mechanism 2322 includes two rows of nozzles that are arranged in a V-shape, and the V-shaped opening formed by the nozzles is upward arranged, the nozzles are arranged in the V-shaped included angle, and the second spraying mechanism 2322 is communicated with the spraying pump, and is controlled to start and stop by controlling the switching of the spraying pump. The two first condensers 23111 are arranged in a V-shape, and the two first condensers 23111 are located in a V-shaped included angle formed by the second spraying mechanism 2322 and are parallel to the second spraying mechanism 2322, so that the second spraying mechanism 2322 can cover and spray the first condensers 23111.
Preferably, the second refrigerating unit 233 includes:
and the cooling pipe mechanism 2331, wherein the cooling pipe mechanism 2331 comprises a second cooling coil 23311 and a cooling liquid connecting pipe 23312, one end of the second cooling coil 23311 is communicated with the data center 110 through the cooling liquid connecting pipe 23312, and the other end is communicated with the first cold source module 220 through the cooling liquid connecting pipe 23312. Specifically, the top port (port near the second exhaust fan) of the second cooling coil 23311 communicates with the dispenser 250 in the data center 110 through the cooling fluid connection pipe 23312, and the bottom port communicates with the hose connected to the liquid trap 260 in the first cold source module 220 through the cooling fluid connection pipe 23312. The cooling pipe mechanism 2331 and the second exhaust fan 2321 are respectively arranged at two sides of the second spraying mechanism 2322;
the fin plates 2332, the fin plates 2332 are connected with the second cooling coil 2331 and circumferentially arranged along the second cooling coil 23311;
a second water collection tank 2333, the second water collection tank 2333 being disposed at the inner bottom of the second cabinet 234; a second air outlet (not shown) is formed in the top of the second cabinet 234, and a second air inlet 2334 is formed in the bottom of the side surface of the second cabinet 234.
The second fluorine cooling mechanism 2312 includes:
the third exhaust fan 23121, the third exhaust fan 23121 is disposed on the side surface of the third cabinet 235 and is perpendicular to the second exhaust fan 2321;
the second condenser 23122, the second condenser 23122 is disposed at the top inside the third cabinet 235; more preferably, the second condenser 23122 is obliquely disposed with respect to a central axis of the third tank 235;
the compressor 23123, the compressor 23123 is installed at the bottom of the third cabinet 235, the second condenser 23122, the fluorine-cooled back plate 210 and the compressor 23123 are respectively connected by pipelines to form a closed loop, a third electromagnetic valve 23124 is installed on a pipeline between the second condenser 23122 and the fluorine-cooled back plate 210, and a fourth electromagnetic valve 23125 is installed on a pipeline between the compressor and the fluorine-cooled back plate;
a third spray mechanism 23126; specifically, the third spraying mechanism 23126 includes at least two nozzles horizontally arranged, and the third spraying mechanism 23126 sprays toward the second condenser 23122;
the third air inlet 23127, the third air inlet 23127 is opened at the side of the third cabinet 235, the third spraying mechanism 23126 is located between the third air inlet 23127 and the second condenser 23122, i.e. the height of the third spraying mechanism 23126 is higher than the top edge of the third air inlet 23127 and lower than the bottom surface of the second condenser 23122;
third sump 23128, third sump 1345 is provided at the bottom inside third tank 132.
The second cold source module 230 is provided with a second exhaust fan 2321 at the top, a first condenser 23111 and a second spraying mechanism 2322 for spraying the first condenser 23111 are arranged below, a horizontal spraying mechanism 2335 is arranged below the first condenser 23111, mainly a fin plate 2332 below, a second cooling coil 23311 are used for spraying and cooling, a second air inlet 2334 is arranged below the second cooling coil 23311 and on the left side, and a second water collecting tank 2333 and a spraying pump are arranged.
The second cold source module 230 mainly provides a cold source for the fluorine cold back plate 210 on the side surface of the liquid cooling cabinet 111, radiates heat except for the heat radiation of the cold plate in the data center 110, sucks the hot air heated by the cold plate server 112 into the fluorine cold back plate 210 for cooling by a fan, and the cooled air enters the environment again, and enters the liquid cooling cabinet 111 again through the rear side (the side opposite to the surface of the fluorine cold back plate) of the liquid cooling cabinet 111 and then enters the cold plate server 112 again; meanwhile, since the pipeline of the second cold source module 230 communicated with the data center 110 is communicated with the pipeline of the data center 110 communicated with the first cold source module 220, when the first cold source module 220 fails, the second cold source module 230 provides a standby cold source for the cold plate of the cold plate server 112 through the second cooling coil 23311 in the second cold source module 230. The second cooling coil 23311 is connected to the fin plate 2332, and the fin plate 2332 increases the entire heat exchange area, and heat exchange can be enhanced by spray cooling.
The first condenser 23111, the fluorine pump 23113, the first electromagnetic valve 23114 and the second electromagnetic valve 23115 on external pipelines, the electronic expansion valve, the fluorine cold back plate 210 and the pipelines which are arranged on the pipelines which are connected between the first condenser 23111 and the fluorine cold back plate 210 and are close to the fluorine cold back plate 210 form a natural cold source fluorine cold loop, a freon refrigerant is arranged in the loop, the refrigerant which absorbs heat and gasifies from the fluorine cold back plate 210 enters the first condenser 23111 through the second electromagnetic valve 23115, outdoor air is sprayed and cooled to wet bulb temperature from the second air inlet 2334 through the second spraying mechanism 2322, then the heat exchange is carried out with the first condenser 23111, and the condensed refrigerant enters the fluorine cold back plate 210 of each liquid cooling cabinet 111 through the electronic expansion valve after passing through the fluorine pump 23113 and the first electromagnetic valve 23114 (the first electromagnetic valve 23114 is opened, the second electromagnetic valve 23115 is opened, the third electromagnetic valve 23124 is closed, and the fourth electromagnetic valve 23125 is closed).
The second condenser 23122, the compressor 23123, a third electromagnetic valve 23124, a fourth electromagnetic valve 23125, an electronic expansion valve and a fluorine cold backboard 210 on an external pipeline form a mechanical refrigeration fluorine cold loop, a freon refrigerant is arranged in the loop, the refrigerant which absorbs heat and gasifies from the fluorine cold backboard 210 enters the compressor 23123 through the third electromagnetic valve 23124, the refrigerant enters the second condenser 23122 after being compressed by the compressor 23123, the second condenser 23122 is a flat-plate type condenser, outdoor air is sprayed and cooled to the wet bulb temperature through a third air inlet 23127 through a horizontal spraying mechanism 23126, then the wet bulb temperature is subjected to high-efficiency heat exchange with the second condenser 23122, and the condensed refrigerant enters the fluorine cold backboard 210 of each liquid cooling cabinet 111 through the electronic expansion valve after passing through the fourth electromagnetic valve 23125 (the third electromagnetic valve 23124 is opened, the fourth electromagnetic valve 23125 is opened, the first electromagnetic valve 23114 is closed, and the second electromagnetic valve 23115 is closed).
The cooling system for the data center comprises a liquid cooling cabinet and a cold plate server arranged in the liquid cooling cabinet; the cooling system includes: the first cold source module and the second cold source module are connected with a cold plate of the cold plate server to refrigerate the cold plate; the second cold source module comprises a fluorine cold unit which is communicated with the fluorine cold back plate to carry out fluorine ventilation refrigeration on the fluorine cold back plate, a first refrigeration unit for cooling the fluorine cold unit, and a second refrigeration unit which is communicated with the first cold source module to refrigerate the cold plate when the first cold source module fails; when the intelligent cooling system is used, the first cold source module is used for refrigerating the cold plate of the cold plate server, the fluorine cooling unit is used for introducing fluorine to cool the side surface fluorine cold back plate of the liquid cooling cabinet, the second refrigerating unit communicated with the first cold source module is used for replacing the first cold source module for refrigerating the cold plate when the first cold source module is monitored to be faulty in real time, whether the first refrigerating unit is started or not is judged according to the outdoor wet bulb temperature monitored in real time to strengthen the refrigerating effect of the fluorine cooling unit, different units can be started according to actual needs for radiating heat of a data center, and energy sources are saved and waste is avoided when the radiating effect is met.
Embodiment two: in accordance with the first embodiment, the present embodiment provides a cooling system control method for a data center, using the cooling system for a data center provided in the first embodiment, as shown with reference to fig. 4, the method includes:
s410, starting the first cold source module to cool a cold plate of the liquid cooling server according to a preset operation rule, and starting the fluorine cooling unit to cool the side surface of the liquid cooling cabinet by fluorine.
Specifically, the liquid cooling cold plate water supply temperature of the cold plate server is set to be 40 ℃, the return water temperature is set to be 50 ℃, the return water is cooled by adopting a first cooling coil pipe in the first cold source module when the first cold source module normally operates, and the temperature target is maintained through spray cooling of a first spray mechanism in the first cold source module and variable frequency regulation of a first fan.
Starting mechanical refrigeration fluorine cooling or natural cold source fluorine cooling according to the outdoor current wet bulb temperature, and specifically comprising the following steps:
when the outdoor current wet bulb temperature is more than or equal to 20 ℃, mechanical refrigeration and fluorine cooling are started, namely a second fluorine cooling mechanism is started to cool the fluorine cold back plate, the third exhaust fan operates in a variable frequency mode, and the first fluorine cooling mechanism is closed;
when the outdoor current wet bulb temperature is less than 20 ℃, natural cold source fluorine cooling is started, namely, a first fluorine cooling mechanism and a first refrigerating unit are started to refrigerate a fluorine cold back plate, a fluorine pump and spraying mode is adopted to cool and refrigerate, and a second exhaust fan operates in a variable frequency mode.
S420, monitoring the real-time outdoor wet bulb temperature and the real-time operation condition of the first cold source module.
Specifically, the wet bulb temperature is the lowest temperature that can be achieved by evaporating water in the current environment, and in this embodiment, the outdoor wet bulb temperature adopts the existing measurement method, and the specific measurement method is not limited in this embodiment. Illustratively, a wet bulb thermometer is manufactured by wrapping absorbent gauze around a mercury sphere of a mercury thermometer, and immersing the lower end of the absorbent gauze in a container containing water, the absorbent gauze being often in a wet state by capillary action. The wet bulb thermometer is placed in flowing unsaturated air with outdoor temperature and humidity, and the temperature of moisture (hereinafter referred to as moisture) in absorbent gauze is assumed to be the same as that of air at the beginning, but moisture is inevitably gasified due to the humidity difference between unsaturated air and moisture, the moisture diffuses into the main air flow, and vaporization heat required for gasification can only be supplied by the temperature drop of the moisture itself to release sensible heat. After the water temperature is reduced, a temperature difference is generated between the water temperature and the air, the air is about to generate sensible heat due to the temperature difference and transfer the sensible heat to the moisture, but the moisture temperature is still reduced continuously to release the sensible heat so as to make up for the insufficient heat of vaporization moisture, and the temperature on the wet bulb thermometer is kept stable until the sensible heat transferred to the moisture by the air is equal to the vaporization heat required by the vaporization of the moisture, and the stable temperature is the outdoor wet bulb temperature.
The operation condition of the first cold source module is judged by monitoring the temperature difference of an inlet and an outlet of the first cooling coil, when the temperature difference of the inlet and the outlet is smaller than a preset threshold value, the abnormal refrigeration of the first cold source module is proved, and when the temperature difference of the inlet and the outlet is larger than or equal to the preset threshold value, the operation condition of the first cold source module is normal.
S430, determining whether the second refrigeration unit needs to be started to replace the first refrigeration unit to refrigerate the cold plate based on the running condition of the first refrigeration unit, and determining whether the running mode of the fluorine-cooled unit needs to be switched based on the real-time outdoor wet bulb temperature.
Specifically, when the operation condition of the first cold source module is abnormal, judging that the second refrigeration unit in the second cold source module needs to be started;
when the outdoor current wet bulb temperature is more than or equal to 20 ℃, mechanical refrigeration and fluorine cooling are started, namely a second fluorine cooling mechanism is started to cool the fluorine cold back plate, the third exhaust fan operates in a variable frequency mode, and the first fluorine cooling mechanism is closed;
when the outdoor current wet bulb temperature is less than 20 ℃, natural cold source fluorine cooling is started, namely, a first fluorine cooling mechanism and a first refrigerating unit are started to refrigerate a fluorine cold back plate, a fluorine pump and spraying mode is adopted to cool and refrigerate, and a second exhaust fan operates in a variable frequency mode.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the method embodiments, since they are based on the system embodiments, the description is relatively simple, and the relevant points are referred to in the partial description of the system embodiments. The system embodiment described above is merely illustrative, and some or all of the modules may be selected according to actual needs to achieve the purpose of the embodiment solution. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
In addition, it should be noted that: the terms "first," "second," "third," "fourth" are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third" and a fourth "may explicitly or implicitly include one or more such feature.
The above embodiments are merely for illustrating the technical concept and features of the present invention, and are not intended to limit the scope of the present invention to those skilled in the art to understand the present invention and implement the same. All modifications made according to the spirit of the main technical proposal of the invention should be covered in the protection scope of the invention.
Claims (6)
1. A cooling system for a data center, the data center comprising a liquid-cooled cabinet and a cold plate server disposed within the liquid-cooled cabinet;
the cooling system includes: the fluorine cold backboard is arranged on the side wall of the liquid cooling cabinet, and the first cold source module and the second cold source module are connected with the cold plate of the cold plate server so as to refrigerate the cold plate;
the first cold source module comprises: the first cabinet body is provided with a first air outlet at the top and a first air inlet close to the bottom at the side surface;
the first exhaust fan is arranged between the water baffle and the first exhaust outlet;
the first spraying mechanism and the first exhaust fan are respectively arranged at two sides of the water baffle;
the filler is arranged on one side, far away from the water baffle, of the first spraying mechanism;
the first cooling coil is arranged on one side of the filler, which is far away from the first spraying mechanism, and is communicated with the cold plate through the power unit;
the first water collecting tank is arranged at the bottom of the first cabinet body;
the second cold source module comprises a fluorine cold unit which is communicated with the fluorine cold back plate to perform fluorine ventilation and refrigeration on the fluorine cold back plate, a first refrigeration unit which cools the fluorine cold unit, and a second refrigeration unit which is communicated with the first cold source module to refrigerate the cold plate when the first cold source module fails;
the second cold source module comprises: the side surfaces of the second cabinet body and the third cabinet body are attached and arranged and communicated with each other; the fluorine cooling unit comprises a first fluorine cooling mechanism and a second fluorine cooling mechanism;
the first fluorine cooling mechanism, the first refrigerating unit and the second refrigerating unit are all arranged in the second cabinet body, and the second fluorine cooling mechanism is arranged in the third cabinet body;
the first fluorine cooling mechanism comprises:
the device comprises a first condenser, a fluorine-passing connecting pipe, a fluorine pump, a first electromagnetic valve and a second electromagnetic valve; one end of the fluorine-passing connecting pipe is communicated with the first condenser and the fluorine cold backboard, and the fluorine pump, the first electromagnetic valve and the second electromagnetic valve are respectively arranged on the fluorine-passing connecting pipe;
the first refrigeration unit includes: the second exhaust fan is arranged at the top end inside the second cabinet body;
the second spraying mechanism is positioned between the second exhaust fan and the second spraying mechanism, and the second spraying mechanism sprays the first condenser facing the first condenser;
the second refrigeration unit includes:
the cooling pipe mechanism comprises a second cooling coil pipe and a cooling liquid connecting pipe, one end of the second cooling coil pipe is communicated with the cold plate through the cooling liquid connecting pipe, the other end of the second cooling coil pipe is communicated with the first cold source module through the cooling liquid connecting pipe, and the cooling pipe mechanism and the second exhaust fan are respectively arranged at two sides of the second spraying mechanism;
the fin plates are connected with the second cooling coil pipe and circumferentially arranged along the second cooling coil pipe;
the second water collecting tank is arranged at the bottom of the second cabinet body; the top of the second cabinet body is provided with a second air outlet, and the bottom of the side surface of the second cabinet body is provided with a second air inlet;
the second fluorine cooling mechanism comprises:
the third exhaust fan is arranged on the side surface of the third cabinet body and is perpendicular to the second exhaust fan;
the second condenser is arranged at the top of the inner part of the third cabinet body;
the compressor is arranged at the bottom of the third cabinet body, the second condenser, the fluorine cold back plate and the compressor are respectively connected through pipelines to form a closed loop, a third electromagnetic valve is arranged on a pipeline between the second condenser and the fluorine cold back plate, and a fourth electromagnetic valve is arranged on a pipeline between the compressor and the fluorine cold back plate;
a third spray mechanism facing the second condenser to spray it;
the third air inlet is formed in the side face of the third cabinet body, and the third spraying mechanism is located between the third air inlet and the condenser;
the third water collecting tank is arranged at the bottom inside the third cabinet body.
2. The cooling system for a data center of claim 1, further comprising a liquid separator and a liquid collector, wherein the liquid separator and the liquid collector are respectively mounted on two sides of each liquid cooling cabinet, and the cold plate server is respectively connected with the liquid separator and the liquid collector through hoses.
3. The cooling system for a data center of claim 1, wherein a fan wall is further provided on a side of the liquid cooling cabinet, one end of the fluorine cooling back plate is attached to an outer side of the liquid cooling cabinet, and the other end is attached to the fan wall.
4. The cooling system for a data center of claim 1, further comprising a container, wherein the data center, the first cold source module, and the second cold source module are all disposed within the container, and wherein a gap is provided between the data center and an inner wall of the container.
5. A cooling system control method for a data center, characterized in that the cooling system for a data center according to any one of claims 1 to 4 is used, the method comprising:
starting a first cold source module to cool a cold plate of the liquid cooling server according to a preset operation rule, and starting a fluorine cooling unit to cool a side surface fluorine cooling back plate of the liquid cooling cabinet by introducing fluorine;
monitoring the real-time outdoor wet bulb temperature and the real-time running condition of the first cold source module;
and determining whether a second refrigeration unit needs to be started to replace the first refrigeration unit to refrigerate the cold plate based on the running condition of the first refrigeration source module, and determining whether the running mode of the fluorine cold unit needs to be switched based on the real-time outdoor wet bulb temperature.
6. The cooling system control method for a data center according to claim 5, wherein the determining whether a second cooling unit needs to be started to cool the cold plate instead of the first cooling module based on the operation condition of the first cooling module includes:
judging whether the operation condition of the first cold source module is abnormal or not;
if yes, a second refrigeration unit is started to replace the first cold source module to refrigerate the cold plate;
if not, maintaining the first cold source module to operate as the cold plate for refrigeration;
the determining whether the fluorine cooling unit operation mode needs to be switched based on the real-time outdoor wet bulb temperature comprises:
judging whether a preset threshold value is in a numerical value interval formed by the initial outdoor wet bulb temperature and the real-time outdoor wet bulb temperature;
if yes, switching the operation mode of the fluorine cooling unit;
if not, maintaining the current operation mode of the fluorine cooling unit.
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| CN113473802A (en) * | 2021-06-29 | 2021-10-01 | 苏州浪潮智能科技有限公司 | Cooling system of cold plate type server and control method |
| CN114071972A (en) * | 2021-11-22 | 2022-02-18 | 北京航空航天大学 | Pump-driving double-loop heat pipe combined heat dissipation system for high-power-density cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113473802A (en) * | 2021-06-29 | 2021-10-01 | 苏州浪潮智能科技有限公司 | Cooling system of cold plate type server and control method |
| CN114071972A (en) * | 2021-11-22 | 2022-02-18 | 北京航空航天大学 | Pump-driving double-loop heat pipe combined heat dissipation system for high-power-density cabinet |
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