CN112654213A - Immersed data center cabinet cooling system and control method thereof - Google Patents
Immersed data center cabinet cooling system and control method thereof Download PDFInfo
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- CN112654213A CN112654213A CN202011380302.8A CN202011380302A CN112654213A CN 112654213 A CN112654213 A CN 112654213A CN 202011380302 A CN202011380302 A CN 202011380302A CN 112654213 A CN112654213 A CN 112654213A
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- 238000001816 cooling Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 131
- 239000007921 spray Substances 0.000 claims description 55
- 239000007788 liquid Substances 0.000 claims description 51
- 238000005192 partition Methods 0.000 claims description 38
- 238000012544 monitoring process Methods 0.000 claims description 6
- RIQRGMUSBYGDBL-UHFFFAOYSA-N 1,1,1,2,2,3,4,5,5,5-decafluoropentane Chemical compound FC(F)(F)C(F)C(F)C(F)(F)C(F)(F)F RIQRGMUSBYGDBL-UHFFFAOYSA-N 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 238000009835 boiling Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/208—Liquid cooling with phase change
- H05K7/20818—Liquid cooling with phase change within cabinets for removing heat from server blades
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/203—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures by immersion
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20345—Sprayers; Atomizers
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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
- H05K7/20836—Thermal management, e.g. server temperature control
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides an immersed data center cabinet cooling system and a control method thereof. The invention reduces the heat exchange times, reduces the heat exchange thermal resistance, increases the heat exchange coefficient, has uniform heat dissipation and ensures the stable and safe operation of the server by the immersed boiling heat exchange in a direct contact mode.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to an immersed data center cabinet cooling system and a control method thereof.
Background
The heat dissipation of the chip is the most important part in the server, the safe, reliable and stable operation of the server is the necessary requirement of a data center, the optimal working temperature of the general chip is 60-70 ℃, in recent years, the electronic technology is rapidly developed, the operation speed of electronic devices is accelerated, and integrated circuits are continuously miniaturized, so that the heat flow density of the electronic devices is continuously increased. Statistically, the heat flux density of the current chips exceeds 100W/cm2, which is a trend increasing. According to a 2018 global power report and a guidance suggestion about strengthening green data center construction issued in 2 months 2020, it is clear that the average energy consumption of the data center in China basically reaches the international advanced level in 2022, and the PUE (power utilization efficiency) of a newly-built large-scale data center is less than 1.4. Therefore, energy consumption reduction in the heat dissipation process of the data center and optimization of the cooling technology are important problems to be solved urgently in the future development trend. On the national level, the country has related tasks of energy conservation and emission reduction, and the revolution and breakthrough of the refrigeration technology can help the data center to really reduce the energy consumption. From the operator's perspective, 70% of the cost of data center operations is the cost of electricity charges. The industry can be driven to develop rapidly by the new technology helping to reduce the operation cost.
Conventional air cooling and liquid cooling are often used for data center cooling. The air cooling utilizes the circulating airflow generated by a fan to cool the electronic chip, the air cooling condenser has high temperature and large power consumption, the temperature of the chip is reduced limitedly during the air cooling, and the method is only suitable for the heat dissipation of a common chip with low integration level and low operation speed in order to meet the heat dissipation capacity and solve the problem that the fan noise and the power consumption are increased when the wind speed is increased. Although water cooling can achieve better effect than air cooling as a circulating cooling mode, damage is easy to occur, and if leakage occurs, the water directly contacts the server to cause problems such as burning and the like. And the traditional air-cooling and water-cooling intermediate heat exchange has large thermal resistance, large irreversible loss and uneven heat dissipation, and cannot ensure the continuous, safe and stable operation of the server.
Therefore, the technical scheme that the problem of insufficient water source is urgently needed to be avoided, the cooling effect is good, and the overall efficiency of the system is improved is needed in the prior art.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides an immersed data center cabinet cooling system and a control method thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an immersed data center cabinet cooling system comprises a support partition plate, a wiring port, an air hole partition plate, an air guide pipe, a water tank, a spray head, a spray pipe, a fan, a coil pipe, a water circulating pump, a collecting pipe, a blow-down valve, a pressure gauge, a first filter, a blade server, a second filter, a liquid storage tank, a working medium circulating pump, a working medium recoverer and a heat exchange tank, wherein the pressure gauge is arranged on the heat exchange tank; the heat exchange tank is filled with working media, the support partition plate is arranged in the heat exchange tank, a transverse groove is arranged in the support partition plate, the blade server is arranged in the transverse groove, the support partition plate and the blade server are immersed in the working media, the air hole partition plate is arranged in the heat exchange tank and located above the working media, an air hole is formed in the air hole partition plate, the top of the heat exchange tank is connected with the lower end of the air guide pipe, the upper end of the air guide pipe is connected with the front end of the coil pipe, the rear end of the coil pipe is connected with the inlet of the collecting pipe, the outlet of the collecting pipe is connected with the heat exchange tank, the first filter is arranged on the collecting pipe, the water tank is arranged below the coil pipe, the water tank is filled with water, the lower part of the coil pipe is immersed in the water tank, and the spray head is arranged above the coil pipe, the fan is arranged above the spray head, the spray head is connected with one end of the spray pipe, the other end of the spray pipe is connected with an outlet of the water circulating pump, an inlet of the water circulating pump is communicated with the water in the water tank, and the blow-down valve is arranged at the bottom of the water tank; the water tank is arranged above the heat exchange pool.
Control valves are arranged on pipelines between the heat exchange pool and the second filter, between the second filter and the working medium circulating pump, between the second filter and the liquid storage tank and between the liquid storage tank and the working medium recoverer.
Working medium adopts decafluoropentane (C)5H2F10)。
An immersed data center cabinet cooling system comprises a support partition plate, a wiring port, an air hole partition plate, an air guide pipe, a water tank, a spray head, a spray pipe, a fan, a coil pipe, a water circulating pump, a collecting pipe, a blow-down valve, a pressure gauge, a first filter, a blade server, a second filter, a liquid storage tank, a working medium circulating pump, a working medium recoverer and a heat exchange tank, wherein the pressure gauge is arranged on the heat exchange tank; the heat exchange tank is filled with working media, the support partition plate is arranged in the heat exchange tank, a transverse groove is arranged in the support partition plate, the blade server is arranged in the transverse groove, the support partition plate and the blade server are immersed in the working media, the air hole partition plate is arranged in the heat exchange tank and located above the working media, an air hole is formed in the air hole partition plate, the top of the heat exchange tank is connected with the lower end of the air guide pipe, the upper end of the air guide pipe is connected with the front end of the coil pipe, the rear end of the coil pipe is connected with the inlet of the collecting pipe, the outlet of the collecting pipe is connected with the heat exchange tank, the first filter is arranged on the collecting pipe, the water tank is arranged below the coil pipe, the lower portion of the coil pipe is immersed in the water tank, the water tank is filled with water, and the spray head is arranged above the coil pipe, the fan is arranged above the spray head, the spray head is connected with one end of the spray pipe, the other end of the spray pipe is connected with an outlet of the water circulating pump, an inlet of the water circulating pump is communicated with the water in the water tank, and the blow-down valve is arranged at the bottom of the water tank; the water tank is arranged on one side of the heat exchange pool, and a liquid supply pump is arranged on the coil pipe and positioned between the first filter and the heat exchange pool.
Control valves are arranged on pipelines between the heat exchange pool and the second filter, between the second filter and the working medium circulating pump, between the second filter and the liquid storage tank and between the liquid storage tank and the working medium recoverer.
Working medium adopts decafluoropentane (C)5H2F10)。
A control method of a cooling system of a cabinet of an immersed data center comprises the following steps:
s1, filling working media into the heat exchange tank, and simultaneously filling water into the water tank;
s2, starting a water circulating pump, enabling a spray head to spray cold water to the coil pipe, enabling the cold water to flow through the coil pipe and then return to a water tank, and finally entering a header and entering a heat exchange pool through a first filter;
s3, starting the working medium circulating pump, opening control valves between the heat exchange pool and the second filter and between the second filter and the working medium circulating pump, and monitoring the real-time pressure in the heat exchange pool through a pressure gauge in the running process;
and S4, after the operation is finished, opening control valves between the second filter and the liquid storage tank and between the liquid storage tank and the working medium recoverer, and opening a drain valve to empty water in the water tank.
A control method of a cooling system of a cabinet of an immersed data center comprises the following steps:
s1, filling working media into the heat exchange tank, and simultaneously filling water into the water tank;
s2, starting a water circulating pump, enabling a spray head to spray cold water to the coil pipe, enabling the cold water to flow through the coil pipe and then return to a water tank, and finally entering a header and entering a heat exchange pool through a first filter;
s3, starting the working medium circulating pump and the liquid supply pump, opening control valves between the heat exchange tank and the second filter and between the second filter and the working medium circulating pump, and monitoring real-time pressure in the heat exchange tank through a pressure gauge in the running process;
and S4, after the operation is finished, opening control valves between the second filter and the liquid storage tank and between the liquid storage tank and the working medium recoverer, and opening a drain valve to empty water in the water tank.
Compared with the prior art, the invention has the beneficial effects that: the blade server is immersed in the working medium, the working medium flows through the coil pipe, and cold water is sprayed on the coil pipe at the same time, so that the heat exchange times are reduced, the heat exchange thermal resistance is reduced, the heat exchange coefficient is increased, the heat dissipation is uniform, and the stable and safe operation of the server is ensured by the immersed boiling heat exchange in a direct contact mode; the gravity type drive or the liquid supply pump drive is adopted, so that the energy consumption is reduced; the fluoridized liquid working medium is used for replacing the conventional refrigerant working medium, so that the refrigerant has good thermal stability, is nontoxic, colorless and tasteless, has high safety and is environment-friendly; in addition, the device has compact structure and saves the occupied area.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following specific embodiments.
The first embodiment.
The cooling system of the immersed data center cabinet shown in fig. 1 comprises a support partition plate 1, a wiring port 2, an air hole partition plate 3, an air guide pipe 4, a water tank 5, a spray head 6, a spray pipe, a fan 7, a coil pipe 8, a water circulating pump 9, a collecting pipe 10, a blow-down valve 11, a pressure gauge 12, a first filter 13, a blade server 14, a second filter 15, a liquid storage tank 16, a working medium circulating pump 17, a working medium recoverer 19 and a heat exchange pool 20, wherein the pressure gauge 12 is arranged on the heat exchange pool 20, the wiring port 2 is arranged on the heat exchange pool 20, a wiring of the blade server 14 penetrates through the wiring port, the bottom of the heat exchange pool 20 is connected with an inlet end of the second filter 15, an outlet end of the second filter 15 is respectively connected with the working medium circulating pump 17 and the liquid; working medium 18 is filled in the heat exchange pool 20, the support partition plate 1 is arranged in the heat exchange pool 20, a transverse groove is arranged in the support partition plate 1, the blade type server 14 is arranged in the transverse groove, the support partition plate 1 and the blade type server 14 are immersed in the working medium 18, the air hole partition plate 3 is arranged in the heat exchange pool 20 and is positioned above the working medium 18, air holes are formed in the air hole partition plate 3, a plurality of air holes are uniformly distributed, the gaseous working medium is uniformly distributed, the situation that gas is concentrated above the blade type server 14 is avoided, the air guide pipe 4 is arranged along the vertical direction, the top of the heat exchange pool 20 is connected with the lower end of the air guide pipe 4, the upper end of the air guide pipe 4 is connected with the front end of the coil pipe 8, the air guide pipe 4 is. The rear end of a coil pipe 8 is connected with the inlet of a header pipe 10, the outlet of the header pipe 10 is connected with a heat exchange pool 20, a first filter 13 is arranged on the header pipe 10, a water tank 5 is arranged below the coil pipe 8, water is filled in the water tank 5, the lower part of the coil pipe 8 is immersed in the water tank 5, a spray head 6 is arranged above the coil pipe 8, a fan 7 is arranged above the spray head 6, the spray head 6 is connected with one end of a spray pipe, the other end of the spray pipe is connected with the outlet of a water circulating pump 9, the inlet of the water circulating pump 9 is communicated with the water in the water tank 5, and a blow-off valve 11 is arranged at; the water tank 5 is disposed above the heat exchange tank 20.
Control valves are arranged on pipelines between the heat exchange pool 20 and the second filter 15, between the second filter 15 and the working medium circulating pump 17, between the second filter 15 and the liquid storage tank 16 and between the liquid storage tank 16 and the working medium recoverer 19.
The control method of the cooling system of the immersed data center cabinet comprises the following steps:
s1, filling working media 18 into the heat exchange pool 20, and simultaneously filling water into the water tank 5;
s2, starting a water circulating pump 9, enabling a spray head 6 to spray cold water to a coil 8, enabling the cold water to flow through the coil 8 and then return to a water tank 5, and finally enter a header 10 and enter a heat exchange tank 20 through a first filter 13;
s3, starting the working medium circulating pump 17, opening control valves between the heat exchange pool 20 and the second filter 15 and between the second filter 15 and the working medium circulating pump 17, and monitoring the real-time pressure in the heat exchange pool 20 through the pressure gauge 12 in the running process;
s4, after the operation is finished, opening a control valve between the second filter 15 and the liquid storage tank 16;
s5, opening a control valve between the liquid storage tank 16 and the working medium recoverer 19, and opening the drain valve 11 to drain the water in the water tank 5.
The blade server 14 radiates heat to raise the temperature of the working medium 18, the high-temperature working medium is gasified, passes through the air holes on the air hole partition plate 5 and then enters the coil pipe 8 through the air guide pipe 4. The water circulating pump 9 is started, so that cold water in the water tank 5 enters the spraying pipe and is sprayed on the coil pipe 8 from the spray head 6 to cool the coil pipe 8, the fan 7 can enhance cooling, the latent heat of vaporization of part of water can take away heat, the temperature of the water is reduced, and the water falls into the water tank 5 to realize the recycling of the water. The working medium 18 in the coil 8 is liquefied after being cooled, enters the collecting pipe 10, is purified by the first filter 13 and then returns to the heat exchange pool 20, and the recycling of the working medium is realized. In this embodiment, the return of working fluid 18 to heat exchange tank 20 is driven by the self-weight of working fluid 18.
Before or after the system runs for a period of time, the working medium circulating pump 17 is started, the working medium 18 is purified by the second filter 15, and control valves between the heat exchange pool 20 and the second filter 15 and between the second filter 15 and the working medium circulating pump 17 are opened, so that the stable running of the system can be ensured. When the system needs to be maintained, the control valve between the second filter 15 and the liquid storage tank 16 is opened, so that the working medium 18 can enter the liquid storage tank 16 for storage; working medium 18 can be stored in working medium recoverer 19 again by opening the control valve between liquid storage tank 16 and working medium recoverer 19. The equipment can be prevented from freezing under the condition of low temperature and the like.
Example two.
The cooling system of the immersed data center cabinet shown in fig. 2 comprises a support partition plate 1, a wiring port 2, an air hole partition plate 3, an air guide pipe 4, a water tank 5, a spray head 6, a spray pipe, a fan 7, a coil pipe 8, a water circulating pump 9, a collecting pipe 10, a blow-down valve 11, a pressure gauge 12, a first filter 13, a blade server 14, a second filter 15, a liquid storage tank 16, a working medium circulating pump 17, a working medium recoverer 19 and a heat exchange pool 20, wherein the pressure gauge 12 is arranged on the heat exchange pool 20, the wiring port 2 is arranged on the heat exchange pool 20, a wiring of the blade server 14 penetrates through the wiring port, the bottom of the heat exchange pool 20 is connected with an inlet end of the second filter 15, an outlet end of the second filter 15 is respectively connected with the working medium circulating pump 17 and the liquid; working media 18 are filled in a heat exchange pool 20, a support clapboard 1 is arranged in the heat exchange pool 20, a transverse groove is arranged in the support clapboard 1, a blade server 14 is arranged in the transverse groove, the support clapboard 1 and the blade server 14 are immersed in the working media 18, an air hole clapboard 3 is arranged in the heat exchange pool 20 and positioned above the working media 18, air holes are arranged on the air hole clapboard 3, a plurality of air holes are uniformly distributed and used for uniformly distributing gaseous working media to avoid gas from concentrating above the blade server 14, an air guide pipe 4 is arranged along the vertical direction, the top of the heat exchange pool 20 is connected with the lower end of the air guide pipe 4, the upper end of the air guide pipe 4 is connected with the front end of a coil pipe 8, the rear end of the coil pipe 8 is connected with an inlet of a collecting pipe 10, an outlet of the collecting pipe 10 is connected with the heat exchange pool 20, a first filter 13 is arranged on the collecting pipe 10, a water tank 5 is arranged below the, the water tank 5 is filled with water, the spray head 6 is arranged above the coil pipe 8, the fan 7 is arranged above the spray head 6, the spray head 6 is connected with one end of a spray pipe, the other end of the spray pipe is connected with an outlet of a water circulating pump 9, an inlet of the water circulating pump 9 is communicated with the water in the water tank 5, and the blow-down valve 11 is arranged at the bottom of the water tank 5; the water tank 5 is provided at one side of the heat exchange tank 20, and a liquid feed pump 21 is provided at a position between the first filter 13 and the heat exchange tank 20 on the coil pipe 8.
Control valves are arranged on pipelines between the heat exchange pool 20 and the second filter 15, between the second filter 15 and the working medium circulating pump 17, between the second filter 15 and the liquid storage tank 16 and between the liquid storage tank 16 and the working medium recoverer 19.
The control method of the cooling system of the immersed data center cabinet comprises the following steps:
s1, filling working media 18 into the heat exchange pool 20, and simultaneously filling water into the water tank 5;
s2, starting a water circulating pump 9, enabling a spray head 6 to spray cold water to a coil 8, enabling the cold water to flow through the coil 8 and then return to a water tank 5, and finally enter a header 10 and enter a heat exchange tank 20 through a first filter 13;
s3, starting the working medium circulating pump 17 and the liquid supply pump 21, opening control valves between the heat exchange pool 20 and the second filter 15 and between the second filter 15 and the working medium circulating pump 17, and monitoring real-time pressure in the heat exchange pool 20 through the pressure gauge 12 in the running process;
s4, after the operation is finished, opening a control valve between the second filter 15 and the liquid storage tank 16;
s5, opening a control valve between the liquid storage tank 16 and the working medium recoverer 19, and opening the drain valve 11 to drain the water in the water tank 5.
In this embodiment, unlike the first embodiment, the working medium 18 is returned to the heat exchange tank 20 and is driven by the liquid supply pump 21.
In the invention, the blade server refers to a server unit which can be inserted into a rack-type chassis with standard height and is a low-cost server platform for realizing HAHD (High Availability High Density), and is specially designed for special application industry and High-Density computing environment. Blade servers are like "blades," each "blade" is actually a system motherboard. Working fluid 18 is a low boiling point liquid of high dielectric strength, such as a fluorinated liquid with a boiling point of 40-50 deg.C, and decafluoropentane (C) is used in examples one and two5H2F10). The heat exchange cell 20 is a sealed hollow insulated container.
The above description is only for the preferred embodiment of the present invention, but the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes and modifications without departing from the inventive concept of the present invention, which falls into the protection scope of the present invention.
Claims (8)
1. An immersed data center cabinet cooling system is characterized by comprising a support partition plate (1), a wiring port (2), an air hole partition plate (3), an air guide pipe (4), a water tank (5), a spray head (6), a spray pipe, a fan (7), a coil pipe (8), a water circulating pump (9), a collecting pipe (10), a blow-down valve (11), a pressure gauge (12), a first filter (13), a blade server (14), a second filter (15), a liquid storage tank (16), a working medium circulating pump (17), a working medium recoverer (19) and a heat exchange pool (20), wherein the pressure gauge (12) is arranged on the heat exchange pool (20), the wiring port (2) is arranged on the heat exchange pool (20), the wiring of the blade server (14) penetrates through the wiring port, the bottom of the heat exchange pool (20) is connected with the inlet end of the second filter (15), the outlet end of the second filter (15) is respectively connected with the working medium circulating pump (17) and the liquid storage tank (16), and the liquid storage tank (16) is also connected with the working medium recoverer (19); the heat exchange pool (20) is filled with working media (18), the support partition plate (1) is arranged in the heat exchange pool (20), a transverse groove is formed in the support partition plate (1), the blade type server (14) is arranged in the transverse groove, the support partition plate (1) and the blade type server (14) are immersed in the working media (18), the air hole partition plate (3) is arranged in the heat exchange pool (20) and located above the working media (18), an air hole is formed in the air hole partition plate (3), the top of the heat exchange pool (20) is connected with the lower end of the air guide pipe (4), the upper end of the air guide pipe (4) is connected with the front end of the coil pipe (8), the rear end of the coil pipe (8) is connected with the inlet of the collecting pipe (10), the outlet of the collecting pipe (10) is connected with the heat exchange pool (20), the first filter (13) is arranged on the header pipe (10), the water tank (5) is arranged below the coil pipe (8), the water tank (5) is filled with water, the lower part of the coil pipe (8) is immersed in the water tank (5), the spray head (6) is arranged above the coil pipe (8), the fan (7) is arranged above the spray head (6), the spray head (6) is connected with one end of the spray pipe, the other end of the spray pipe is connected with an outlet of the water circulating pump (9), an inlet of the water circulating pump (9) is communicated with the water in the water tank (5), and the blow-down valve (11) is arranged at the bottom of the water tank (5); the water tank (5) is arranged above the heat exchange pool (20).
2. The submerged data center cabinet cooling system of claim 1, wherein control valves are disposed on the pipelines between the heat exchange tank (20) and the second filter (15), between the second filter (15) and the working medium circulating pump (17), between the second filter (15) and the liquid storage tank (16), and between the liquid storage tank (16) and the working medium recoverer (19).
3. The submerged data center cabinet cooling system of claim 1, wherein working medium (18) is decafluoropentane (C)5H2F10)。
4. An immersed data center cabinet cooling system is characterized by comprising a support partition plate (1), a wiring port (2), an air hole partition plate (3), an air guide pipe (4), a water tank (5), a spray head (6), a spray pipe, a fan (7), a coil pipe (8), a water circulating pump (9), a collecting pipe (10), a blow-down valve (11), a pressure gauge (12), a first filter (13), a blade server (14), a second filter (15), a liquid storage tank (16), a working medium circulating pump (17), a working medium recoverer (19) and a heat exchange pool (20), wherein the pressure gauge (12) is arranged on the heat exchange pool (20), the wiring port (2) is arranged on the heat exchange pool (20), the wiring of the blade server (14) penetrates through the wiring port, the bottom of the heat exchange pool (20) is connected with the inlet end of the second filter (15), the outlet end of the second filter (15) is respectively connected with the working medium circulating pump (17) and the liquid storage tank (16), and the liquid storage tank (16) is also connected with the working medium recoverer (19); the heat exchange pool (20) is filled with working media (18), the support partition plate (1) is arranged in the heat exchange pool (20), a transverse groove is formed in the support partition plate (1), the blade type server (14) is arranged in the transverse groove, the support partition plate (1) and the blade type server (14) are immersed in the working media (18), the air hole partition plate (3) is arranged in the heat exchange pool (20) and located above the working media (18), an air hole is formed in the air hole partition plate (3), the top of the heat exchange pool (20) is connected with the lower end of the air guide pipe (4), the upper end of the air guide pipe (4) is connected with the front end of the coil pipe (8), the rear end of the coil pipe (8) is connected with the inlet of the collecting pipe (10), the outlet of the collecting pipe (10) is connected with the heat exchange pool (20), the first filter (13) is arranged on the header (10), the water tank (5) is arranged below the coil pipe (8), the lower part of the coil pipe (8) is immersed in water in the water tank (5), the water tank (5) is filled with water, the spray head (6) is arranged above the coil pipe (8), the fan (7) is arranged above the spray head (6), the spray head (6) is connected with one end of the spray pipe, the other end of the spray pipe is connected with an outlet of the water circulating pump (9), an inlet of the water circulating pump (9) is communicated with the water in the water tank (5), and the blow-off valve (11) is arranged at the bottom of the water tank (5); the water tank (5) is arranged on one side of the heat exchange pool (20), and a liquid supply pump (21) is arranged on the coil pipe (8) and is positioned between the first filter (13) and the heat exchange pool (20).
5. The submerged data center cabinet cooling system of claim 4, wherein control valves are arranged on the pipelines between the heat exchange tank (20) and the second filter (15), between the second filter (15) and the working medium circulating pump (17), between the second filter (15) and the liquid storage tank (16), and between the liquid storage tank (16) and the working medium recoverer (19).
6. The submerged data center cabinet cooling system of claim 3, wherein working medium (18) is decafluoropentane (C)5H2F10)。
7. A method of controlling a submersible data center cabinet cooling system as recited in claim 2, comprising the steps of:
s1, filling working media (18) into the heat exchange pool (20), and simultaneously filling water into the water tank (5);
s2, starting a water circulating pump (9), enabling a spray head (6) to spray cold water to a coil (8), enabling the cold water to flow through the coil (8) and then return to a water tank (5), and finally enter a header (10) and enter a heat exchange pool (20) through a first filter (13);
s3, starting the working medium circulating pump (17), opening control valves between the heat exchange pool (20) and the second filter (15) and between the second filter (15) and the working medium circulating pump (17), and monitoring real-time pressure in the heat exchange pool (20) through a pressure gauge (12) in the running process;
s4, after the operation is finished, opening a control valve between the second filter (15) and the liquid storage tank (16);
s5, opening a control valve between the liquid storage tank (16) and the working medium recoverer (19), and opening a drain valve (11) to drain water in the water tank (5).
8. A method of controlling a submersible data center cabinet cooling system as recited in claim 5, comprising the steps of:
s1, filling working media (18) into the heat exchange pool (20), and simultaneously filling water into the water tank (5);
s2, starting a water circulating pump (9), enabling a spray head (6) to spray cold water to a coil (8), enabling the cold water to flow through the coil (8) and then return to a water tank (5), and finally enter a header (10) and enter a heat exchange pool (20) through a first filter (13);
s3, starting the working medium circulating pump (17) and the liquid supply pump (21), opening control valves between the heat exchange pool (20) and the second filter (15) and between the second filter (15) and the working medium circulating pump (17), and monitoring real-time pressure in the heat exchange pool (20) through a pressure gauge (12) in the running process;
s4, after the operation is finished, opening a control valve between the second filter (15) and the liquid storage tank (16);
s5, opening a control valve between the liquid storage tank (16) and the working medium recoverer (19), and opening a drain valve (11) to drain water in the water tank (5).
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| CN202011380302.8A CN112654213A (en) | 2020-11-30 | 2020-11-30 | Immersed data center cabinet cooling system and control method thereof |
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| CN202011380302.8A CN112654213A (en) | 2020-11-30 | 2020-11-30 | Immersed data center cabinet cooling system and control method thereof |
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