CN117177532A - Combined data center cooling system and method - Google Patents
Combined data center cooling system and method Download PDFInfo
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- CN117177532A CN117177532A CN202311111320.XA CN202311111320A CN117177532A CN 117177532 A CN117177532 A CN 117177532A CN 202311111320 A CN202311111320 A CN 202311111320A CN 117177532 A CN117177532 A CN 117177532A
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- 238000001816 cooling Methods 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title description 3
- 239000007788 liquid Substances 0.000 claims abstract description 97
- 238000005057 refrigeration Methods 0.000 claims abstract description 35
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000110 cooling liquid Substances 0.000 claims abstract description 19
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 19
- 239000011737 fluorine Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A combined data center cooling system comprises a liquid cooling unit and a mechanical refrigerating unit of an auxiliary liquid cooling unit; the liquid cooling unit comprises a dry cooler module, the dry cooler module is communicated with a liquid separator in the cold plate liquid cooling cabinet through a cooling liquid circulating pump to convey cooling liquid, the liquid separator is communicated with a plurality of groups of liquid cooling servers to separate liquid, and the other end of the liquid cooling server is communicated with the cooling liquid circulating pump through a liquid collector to carry out bad circulation; the mechanical refrigeration unit comprises an evaporative cooling device arranged in the cold plate liquid cooling cabinet, and the evaporative cooling device is circularly communicated with the condenser module to realize auxiliary cooling of the cold plate liquid cooling cabinet. The invention also discloses a combined data center cooling method, which adopts a liquid cooling, fluorine cooling and natural cooling combined mode or an independent cooling operation mode, realizes multi-cold source distribution and redundancy backup through optimizing the structure and system architecture design, and achieves the effects of realizing high density, high reliability and high energy saving of the data center.
Description
Technical Field
The invention belongs to the technical field of distributed control systems, and particularly relates to a combined data center cooling system and method.
Background
Digital economy is rapidly developed, AI and intelligent calculation demands are rapidly increased, novel digital intelligent application is daily and monthly, and various calculation infrastructure such as high density and high calculation power is continuously developed. The liquid cooling technology can support higher-power cooling, ultra-low PUE and the like by utilizing higher specific heat capacity and heat exchange capacity of liquid. Aiming at a cold plate type liquid cooling mode in the liquid cooling data center, the cooling of devices with large heating value is mainly solved, and other devices with small heating value also need auxiliary refrigeration. In the prior art, the cooling plate type liquid cooling data center cooling unit is provided with a dry cooler system and a compression condensing system, the occupied area of the independent cooling unit is large, joint operation control cannot be formed, more installation and working spaces are needed, and each row of the plurality of cooling systems is lack of cooperation between each other when working, so that unnecessary energy waste is caused.
Disclosure of Invention
The invention aims to: the invention aims to provide a combined type data center cooling system with high integration level and good energy conservation, and the other aim of the invention is to provide a combined type data center cooling method.
The technical scheme is as follows: the invention relates to a combined type data center cooling system, which comprises a liquid cooling unit and a mechanical refrigerating unit of an auxiliary liquid cooling unit; the liquid cooling unit comprises a dry cooler module, the dry cooler module is communicated with a liquid separator in the cold plate liquid cooling cabinet through a cooling liquid circulating pump to convey cooling liquid, the liquid separator is communicated with a plurality of groups of liquid cooling servers to separate liquid, and the other end of the liquid cooling server is communicated with the cooling liquid circulating pump through a liquid collector to carry out bad circulation; the mechanical refrigeration unit comprises an evaporative cooling device arranged in the cold plate liquid cooling cabinet, and the evaporative cooling device is circularly communicated with the condenser module to realize auxiliary cooling of the cold plate liquid cooling cabinet.
The condenser module carries out circulating cooling on the evaporator in the evaporative cooling device through connection, the output end of the condenser module is connected with the input end of the evaporator through a compressor, the output end of the evaporator is communicated with the input end of the condenser module through a fluorine pump, the output end of the condenser module is communicated with the input end of the evaporator through a first one-way valve, and the output end of the evaporator is communicated with the input end of the condenser module through a second one-way valve.
And one side of the dry cooler module is provided with a dry cooler fan module for normalizing the operation of the dry cooler module, and the other side of the dry cooler module is provided with a dry cooler water spraying module for spraying and cooling the dry cooler module.
The device comprises a dry condenser module, a condenser fan module, a water spraying module and a water cooling module, wherein the condenser fan module is applied to the normalized operation of the condenser module, and the water spraying module is arranged on the other side of the condenser module and has an auxiliary cooling function.
Wherein, be equipped with liquid cooling heat exchange plate in the liquid cooling server.
The cooling method of the combined type data center cooling system comprises the following working modes, namely a normal working mode, a high-temperature working mode, a low-temperature working mode and an emergency working mode according to different working environments; the normal working mode comprises that a main cooler module performs liquid supply circulation for a liquid cooling server, and the main cooler module performs liquid supply and heat dissipation for the liquid cooling server through a cooling liquid circulating pump, a water separator, a liquid collector and an accessory pipeline; the condenser module provides auxiliary refrigeration for the cold plate liquid cooling cabinet, and the condenser module provides auxiliary heat dissipation for the liquid cooling cabinet through the refrigeration compressor and the evaporative cooling device and controls the rotating speed of the variable frequency compressor to adjust auxiliary refrigeration capacity according to the set temperature of the system and the ambient temperature.
When the external temperature exceeds the threshold value by more than 35 ℃, the system starts the dry cooler fan module and the dry cooler fan module to actively cool the dry cooler module and the condenser module on the basis of the normal working mode, so that the cooling efficiency is improved; the mechanical refrigeration unit is in a compressor refrigeration system mode, the first one-way valve is closed, the second one-way valve is opened, the mechanical refrigeration unit is refrigerated by the compressor, and the condenser module provides auxiliary cooling for the cold plate liquid cooling cabinet through the compressor; the condenser is actively operated with a water spray module.
When the external temperature is lower than a set threshold value below 15 ℃, the cold and dry machine module adjusts the flow of liquid inlet and outlet according to the rotating speed of a system control cooling liquid circulating pump, and the condenser module is switched to a mixing mode; when the outside temperature is lower than the set threshold value by less than 5 ℃, the outdoor side condenser module is switched to the energy-saving mode.
Wherein the emergency working mode comprises that when the outdoor side dry cooler module fails, the condenser module improves the mechanical refrigerating capacity by 100%; when the outdoor condenser module fails, the air conditioner is forced to switch to a natural cooling mode, and the fluorine pump is started to provide cold energy.
The energy-saving mode of the mechanical refrigeration unit is that when the outdoor temperature is lower than 5 ℃, the condenser module is switched to the energy-saving mode, the first one-way valve is opened, the second one-way valve is closed, the refrigeration of the compressor is controlled to be switched to the natural cooling of the fluorine pump, and the condenser module provides auxiliary cooling for the liquid cooling cabinet through the fluorine pump. Hybrid mode of the mechanical refrigeration unit: when the outdoor environment temperature is 5-15 ℃, the system is in a mixed mode, the first one-way valve is closed, the second one-way valve is opened, the compressor and the fluorine pump work simultaneously, and the compressor operates in a variable frequency mode.
The beneficial effects are that: compared with the prior art, the invention has the following remarkable progress: according to the invention, the liquid cooling unit is arranged to cool the cold plate liquid cooling cabinet, and the mechanical refrigeration unit is also arranged to assist in cooling the cold plate liquid cooling cabinet, so that the integrated arrangement reduces the volume of the whole system, saves redundant accessories and saves the installation space of equipment; according to the invention, different working modes are set according to the temperatures of different working environments and the loads of equipment, so that the normal operation of the system under different working conditions is ensured, and the consumption of energy sources is also saved; the multi-cold source distribution and redundancy backup are realized by adopting a liquid cooling, fluorine cooling and natural cooling combined mode or an independent cooling operation mode through optimizing the structure and the system architecture design, so that the effects of high density, high reliability and high energy saving of the data center are realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a liquid-cooled heat exchanger apparatus;
FIG. 3 is a schematic diagram of an evaporative cooling apparatus;
FIG. 4 is a schematic diagram of the system operation in a mechanical refrigeration mode;
FIG. 5 is a schematic diagram of the system operation in a power saving mode;
FIG. 6 is a schematic diagram of the system operation in a hybrid mode;
fig. 7 is a schematic diagram of a row of multi-gang cabinets.
Detailed Description
As shown in fig. 1, the combined data center cooling system in the invention comprises a liquid cooling unit which plays a main cooling role and a mechanical refrigeration unit which assists in cooling; as shown in fig. 2, the liquid cooling unit comprises a cold plate liquid cooling cabinet 1, a dry cooler fan module 3, a dry cooler module 5, a water spray module 7 for the dry cooler, a cooling liquid circulating pump 9, a liquid separator 51, a liquid collector 52 and a liquid cooling server 101, wherein a liquid cooling heat exchange plate is arranged in the liquid cooling server 101; the main cooler fan module 3 is arranged on one side of the main cooler module 5, corresponds to the normalized operation of the main cooler module 5, the main cooler water spray module 7 is arranged on the other side of the main cooler module 5, is applied to actively operate under specific working conditions to spray and cool the main cooler module 5, the main cooler module 5 is communicated with the cooling liquid circulating pump 9, the output end of the liquid circulating pump 9 is connected with the liquid separator 51 in the cold plate liquid cooling cabinet 1 through a pipeline, the liquid separator 51 is connected with a plurality of groups of liquid cooling servers 101 to split cooling liquid, the other ends of the liquid cooling servers 101 are respectively communicated with the liquid collector 52 for backflow after cooling, and the other ends of the liquid collector 52 are refluxed to the main cooler module 5 through the pipeline and the cooling liquid circulating pump 9. As shown in fig. 3, the mechanical refrigeration unit includes an evaporative cooling device 2, an evaporator 21, a condenser fan module 4, a condenser module 6, a condenser water spray module 8, a refrigeration compressor 10, a fluorine pump 11, a first check valve 110, and a second check valve 111; the evaporative cooling device 2 is arranged in the cold plate liquid cooling cabinet 1, is fixed between the adjacent liquid separator 51 and the liquid collector 52, performs auxiliary refrigeration on the cold plate liquid cooling cabinet 1 through the evaporator 21, and is applied to the normalized operation of the condenser module 6, wherein the condenser fan module 4 is arranged on one side of the condenser module 6, and the water spraying module 8 for the dry cooler is arranged on the other side of the condenser module 6 to perform auxiliary cooling; as shown in fig. 4 to 6, the condenser module 6, the refrigeration compressor 10 and the fluorine pump 11 are connected to the evaporator 21 in the evaporative cooling device 2 to perform circulation cooling, the output end of the condenser module 6 is connected to the input end of the evaporator 21 through the compressor 10, the output end of the evaporator 21 is communicated with the input end of the condenser module 6 through the fluorine pump 11, the output end of the condenser module 6 is also connected to the input end of the evaporator 21 through the first check valve 110, and the output end of the evaporator 21 is also connected to the input end of the condenser module 6 through the second check valve 111. As shown in fig. 7, in the present embodiment, the plurality of groups of the cold-plate liquid-cooled cabinet 1 and the evaporative cooling apparatus 2 may be arranged according to actual cooling requirements.
The working flow is as follows: with the above structure, in order to cope with different working conditions, the present embodiment sets the following working modes in consideration of energy consumption:
normal operation mode: the main cooler module 5 is used for carrying out liquid supply circulation for the liquid cooling server, the main cooler module 5 is used for carrying out liquid supply cooling for the liquid cooling server 101 through a cooling liquid circulating pump 9, a water separator 51, a liquid collector 52 and auxiliary pipelines, and more than 70% of heat of a liquid cooling system is brought out, so that the system is subjected to secondary cooling; the outdoor side condenser module 6 provides auxiliary refrigeration for the liquid cooling cabinet 1, the condenser module 6 provides auxiliary cooling for the liquid cooling cabinet 1 through the refrigeration compressor 10 and the evaporative cooling device 2, and the rotation speed of the variable frequency compressor is controlled according to the set temperature of the system and the ambient temperature to adjust auxiliary refrigeration capacity.
High temperature operation mode: when the external temperature exceeds the threshold value above 35 ℃, the system starts the spraying modules of the dry cooler 4 and the condenser 5 to actively cool the dry cooler module 5 and the condenser module 6 on the basis of the normal working mode, and the outdoor cooling efficiency is improved. As shown in fig. 4, the mechanical refrigeration unit is in a compressor refrigeration system mode, the first check valve 110 is closed, the second check valve 111 is opened, the compressor 10 is used for refrigerating, and the condenser module 6 provides auxiliary cooling for the liquid cooling cabinet 1 through the compressor 10; the condenser is actively operated with the water spray module 8 when the outdoor temperature is higher than 35 c.
Low temperature operation mode: when the external temperature is lower than the set threshold value below 15 ℃, the outdoor side dry cooler module 5 adjusts the flow of inlet and outlet according to the rotating speed of the system control cooling liquid circulating pump, and the outdoor side condenser module 6 is switched to a mixing mode; when the outside temperature is lower than the set threshold value below 5 ℃, the outdoor side condenser module 6 is switched to an energy-saving mode; taking Beijing as an example, the total PUE is reduced by about 35% all the year around by about 150 days below 15 ℃. As shown in fig. 5, the energy saving mode of the mechanical refrigeration unit: when the outdoor temperature is lower than 5 ℃, the condenser module 6 is switched to an energy-saving mode, the first one-way valve 110 is opened, the second one-way valve 111 is closed, the compressor 10 is controlled to be cooled and switched to the fluorine pump 11 for natural cooling, and the condenser module 6 provides auxiliary cooling for the liquid cooling cabinet 1 through the fluorine pump. As shown in fig. 6, the hybrid mode of the mechanical refrigeration unit: when the outdoor environment temperature is 5-15 ℃, the system is in a mixed mode, the first one-way valve 110 is closed, the second one-way valve 111 is opened, the compressor 10 and the fluorine pump 11 work simultaneously, the compressor 10 operates in a variable frequency mode, the rotating speed is low, and the energy-saving effect is achieved.
Emergency operation mode: when the outdoor side dry cooler module 5 fails, the condenser module 6 increases the mechanical refrigerating capacity by 100%; when the outdoor side condenser module 6 fails, the air conditioner is forced to switch to a natural cooling mode, and the fluorine pump 10 is started to provide cold energy.
Claims (10)
1. The combined type data center cooling system is characterized by comprising a liquid cooling unit and a mechanical refrigerating unit of an auxiliary liquid cooling unit; the liquid cooling unit comprises a dry cooler module (5), the dry cooler module (5) is communicated with a liquid separator (51) in the cold plate liquid cooling cabinet (1) through a cooling liquid circulating pump (9) to convey cooling liquid, the liquid separator (51) is communicated with a liquid cooling server (101) to separate liquid, and the other end of the liquid cooling server (101) is communicated with the cooling liquid circulating pump (9) through a liquid collector (52) to carry out circulating reflux; the mechanical refrigeration unit comprises an evaporative cooling device (2) arranged in the cold plate liquid cooling cabinet (1), and the evaporative cooling device (2) is circularly communicated with a condenser module (6) to realize auxiliary cooling of the cold plate liquid cooling cabinet (1).
2. The combined data center cooling system according to claim 1, wherein the condenser module (6) is connected to an evaporator (21) in the evaporative cooling device (2) for circulating cooling, an output end of the condenser module (6) is connected to an input end of the evaporator (21) through a compressor (10), an output end of the evaporator (21) is communicated with an input end of the condenser module (6) through a fluorine pump (11), an output end of the condenser module (6) is further communicated with an input end of the evaporator (21) through a first one-way valve (110), and an output end of the evaporator (21) is further communicated with an input end of the condenser module (6) through a second one-way valve (111).
3. The combined data center cooling system according to claim 1, wherein one side of the main cooler module (5) is provided with a main cooler fan module (3) for normalizing operation of the main cooler module (5), and the other side is provided with a main cooler water spray module (7) for spraying and cooling the main cooler module (5).
4. The combined data center cooling system according to claim 1, wherein one side of the dry condenser module (6) is provided with a cooler fan module (4) applied to the normalized operation of the condenser module (6), and the other side of the condenser module (6) is provided with a dry cooler water spray module (8) with auxiliary cooling function.
5. The combined data center cooling system according to claim 1, wherein a liquid-cooled heat exchanger plate is provided in the liquid-cooled server (101).
6. A cooling method applied to the combined type data center cooling system of claim 1, wherein the combined type data center cooling system comprises the following operation modes, a normal operation mode, a high temperature operation mode, a low temperature operation mode and an emergency operation mode according to different operation environments; the normal working mode comprises that the main cooler module (5) circulates liquid for the liquid cooling server (101), and the main cooler module (5) radiates heat for liquid for the liquid cooling server (101) through a cooling liquid circulating pump (9), a water separator (51), a liquid collector (52) and an accessory pipeline; the condenser module (6) provides auxiliary refrigeration for the cold plate liquid cooling cabinet (1), the condenser module (6) provides auxiliary heat dissipation for the liquid cooling cabinet (1) through the refrigeration compressor (10) and the evaporative cooling device (2), and the rotation speed of the variable frequency compressor is controlled to adjust auxiliary refrigeration capacity according to the set temperature of the system and the ambient temperature.
7. The combined data center cooling method according to claim 6, wherein the high temperature operation mode is that when the external temperature exceeds a threshold value by more than 35 ℃, the system starts a main cooler fan module (3) and a main cooler fan module (4) to actively cool a main cooler module (5) and a condenser module (6) on the basis of a normal operation mode so as to improve cooling efficiency; the mechanical refrigeration unit is in a compressor refrigeration system mode, the first one-way valve (110) is closed, the second one-way valve (111) is opened, the compressor (10) is used for refrigerating, and the condenser module (6) provides auxiliary cooling for the cold plate liquid cooling cabinet (1) through the compressor (10); the condenser is actively operated by a water spraying module (8).
8. The combined data center cooling method according to claim 7, wherein the low temperature operation mode includes that when the external temperature is lower than a set threshold value below 15 ℃, the main cooler module (5) adjusts the flow rate of inlet and outlet according to the rotational speed of the system control cooling liquid circulating pump (9), and the condenser module (6) is switched to the mixing mode; when the outside temperature is lower than the set threshold value by 5 ℃, the outdoor side condenser module (6) is switched to the energy-saving mode.
9. The modular data center cooling method of claim 6, wherein the emergency mode of operation includes the condenser module (6) increasing 100% mechanical cooling capacity when the outdoor side main chiller module (5) fails; when the outdoor side condenser module (6) fails, the air conditioner is forced to switch to a natural cooling mode, and the fluorine pump (10) is started to provide cold energy.
10. The combined data center cooling method according to claim 8, wherein the energy saving mode of the mechanical refrigeration unit is that when the outdoor temperature is lower than 5 ℃, the condenser module (6) is switched to the energy saving mode, the first one-way valve (110) is opened, the second one-way valve (111) is closed, the refrigeration of the compressor (100) is controlled to be switched to the natural cooling of the fluorine pump (10), and the condenser module (6) provides auxiliary cooling for the liquid cooling cabinet (1) through the fluorine pump. The mechanical refrigeration unit has a mixing mode that when the outdoor environment temperature is 5-15 ℃, the system is in the mixing mode, the first one-way valve (110) is closed, the second one-way valve (111) is opened, the compressor (10) and the fluorine pump (11) work simultaneously, and the compressor (10) operates in a variable frequency mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311111320.XA CN117177532A (en) | 2023-08-31 | 2023-08-31 | Combined data center cooling system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311111320.XA CN117177532A (en) | 2023-08-31 | 2023-08-31 | Combined data center cooling system and method |
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| Publication Number | Publication Date |
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| CN117177532A true CN117177532A (en) | 2023-12-05 |
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| CN202311111320.XA Pending CN117177532A (en) | 2023-08-31 | 2023-08-31 | Combined data center cooling system and method |
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| CN (1) | CN117177532A (en) |
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- 2023-08-31 CN CN202311111320.XA patent/CN117177532A/en active Pending
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