CN106852088B - Single-stage serial liquid-gas dual-channel natural cooling data center heat dissipation system - Google Patents
Single-stage serial liquid-gas dual-channel natural cooling data center heat dissipation system Download PDFInfo
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- CN106852088B CN106852088B CN201710184756.XA CN201710184756A CN106852088B CN 106852088 B CN106852088 B CN 106852088B CN 201710184756 A CN201710184756 A CN 201710184756A CN 106852088 B CN106852088 B CN 106852088B
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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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The patent relates to a single-stage tandem type liquid-gas binary channels natural cooling data center cooling system, including liquid cooling module, forced air cooling device and natural heat abstractor, the export intercommunication natural heat abstractor's of liquid cooling module import, natural heat abstractor's export intercommunication forced air cooling device's import, forced air cooling device's export intercommunication liquid cooling module's import. The air cooling device and the liquid cooling module in the patent jointly utilize the natural heat dissipation device to dissipate heat, so that the natural cold source is fully utilized, the running and maintenance cost of the compressor and other parts in mechanical refrigeration is reduced, the energy consumption is greatly reduced, and the energy is saved.
Description
Technical Field
The patent relates to the field of natural cooling of data centers, in particular to a single-stage serial liquid-gas dual-channel natural cooling data center cooling system.
Background
In a common heat dissipation system of a data center server, a high-density heat source such as a server CPU (Central processing Unit) adopts a liquid cooling channel to dissipate heat, namely liquid fluid absorbs heat through isolation contact with a main heating chip of the server, 70% -80% of total heat productivity of the server is taken away, and the rest 20% -30% of the heat of the server is taken away through an air cooling channel. Because the liquid cooling channel has high heat dissipation efficiency, the heat dissipation requirement can be met by adopting natural cooling, a compressor is not required to participate in preparing a cold source, the overall energy consumption is low, and the air cooling channel also has the compressor to participate in refrigeration, so the compressor energy of the air cooling channel becomes the main energy consumption equipment of the latest heat dissipation system.
In the new GB 50174 data center design specification, the allowable air inlet temperature of the server is increased to 32 ℃, namely the increased allowable air inlet temperature of the server can meet the heat dissipation requirement of the server, and meanwhile, the main heat productivity of the server is emitted through an efficient liquid cooling channel, only a small part of distributed heat productivity is remained, so that the air cooling channel removes a compressor, and heat dissipation by using a natural cold source is possible.
Disclosure of Invention
In order to overcome the defects of the prior art, the patent provides a single-stage serial liquid-gas double-channel natural cooling data center heat dissipation system which can fully utilize natural cold sources to realize the natural cooling of the data center and save energy.
For the present patent, the above technical problems are solved as follows: the utility model provides a single-stage tandem type liquid-gas binary channels natural cooling data center cooling system, includes liquid cooling module, forced air cooling device and natural heat abstractor, the export intercommunication natural heat abstractor's of liquid cooling module import, natural heat abstractor's export intercommunication forced air cooling device's import, forced air cooling device's export intercommunication liquid cooling module's import.
The liquid cooling module is used for absorbing centralized heat of main heating elements in the server, and the air cooling device is used for absorbing distributed heat of other elements in the server. The liquid cooling module utilizes the characteristics of large specific heat capacity, fast convection heat exchange, large evaporation latent heat and the like of the liquid heat exchange medium, so that the natural cooling device can be combined to naturally cool the main heating element of the server, the heat dissipation requirement is met, and secondly, 70% -80% of heat in the server is taken away by the liquid cooling module, and the rest of distributed heat in the server is allowed to further improve the air supply temperature to 32 ℃, so that the air cooling device can be combined to naturally cool other heating elements in the server. In conclusion, the natural cold source is fully utilized to dissipate heat, so that the running and maintenance cost of the compressor and other parts in mechanical refrigeration is reduced, the energy consumption is greatly reduced, and the energy is saved.
Further, the three-way valve comprises a first interface, a second interface and a third interface; the outlet of the liquid cooling module is communicated with the inlet of the natural heat radiator through the first interface and the second interface, and the third interface is communicated with the outlet of the natural heat radiator.
The third interface is communicated with the outlet of the natural heat radiator, which means that the high-temperature heat exchange medium output from the outlet of the liquid cooling module can exchange heat without the natural heat radiator and can return to the air cooling device again for heat exchange, so that when the refrigerating capacity is excessive, the third interface can be properly opened, the refrigerating capacity is reduced, the energy consumption of the natural heat radiator is saved, the liquid cooling module and the air cooling device can be protected from being too low in temperature to a certain extent, the reliability is high, because the phenomena of poor contact and the like among the elements, the circuit board, the circuit and the like are possibly caused when the temperature of the server is too low, meanwhile, the condensation phenomenon is also possibly generated due to supercooling, and the potential safety hazards such as circuit short circuit, mold breeding and material corrosion caused by the condensation are avoided, and the safe and stable operation of the system is further ensured.
Further, the air cooling device further comprises a first two-way valve, wherein two interfaces of the first two-way valve are respectively communicated with an outlet and an inlet of the air cooling device.
When the refrigerating capacity of the air cooling device is excessive or the refrigerating capacity of the liquid cooling module is too low, the opening degree of the first two-way valve can be properly enlarged, so that part of low-temperature heat exchange medium at the outlet of the natural heat radiating device directly flows into the liquid cooling module without passing through the air cooling device; when the refrigerating capacity of the air cooling device is too small or the refrigerating capacity of the liquid cooling module is excessive, the opening degree of the first two-way valve can be properly reduced, so that most of low-temperature heat exchange medium at the outlet of the natural heat radiating device passes through the air cooling device and flows into the liquid cooling module, and therefore, the opening degree of the first two-way valve is convenient to adjust according to actual conditions, the flexibility is good, and the system adaptability is improved.
Further, the device also comprises a water pump arranged at the outlet or the inlet of the natural heat radiator, and a first frequency converter is arranged on the water pump.
When the refrigerating capacity can not meet the requirements of the air cooling device or the liquid cooling module, the working frequency of the first frequency converter can be properly increased, so that the water pump can be accelerated to operate, the heat exchange efficiency of a heat exchange medium in a loop is improved, the refrigerating capacity is improved, and the stability is good; when the refrigerating capacity is surplus, the working frequency of the first frequency converter can be properly reduced, so that the water pump slows down the running speed, and the heat exchange efficiency of the heat exchange medium in the loop is reduced, thereby reducing the refrigerating capacity, saving the energy consumption and avoiding damage caused by shrinkage or condensation due to supercooling of the server.
Further, the natural heat dissipation device is provided with a second frequency converter.
When the refrigerating capacity can not meet the requirements of the air cooling device or the liquid cooling module, the working frequency of the second frequency converter can be properly increased, so that the natural heat radiating device can be accelerated to operate, the heat exchange efficiency of a heat exchange medium and the natural environment can be improved, the refrigerating capacity can be further increased, and the normal operation of the system can be ensured; when the refrigerating capacity is surplus, the working frequency of the second frequency converter can be properly reduced, and the heat exchange efficiency of the heat exchange medium and the natural environment is reduced, so that the refrigerating capacity is reduced, the energy consumption is saved, and the damage caused by shrinkage or condensation due to supercooling of the server is avoided.
Further, the air cooling device also comprises a refrigeration compensation device which is connected in parallel with the inlet and the outlet of the natural heat dissipation device or connected in parallel with the inlet of the air cooling device and the outlet of the liquid cooling module.
When the natural heat dissipation device can not provide enough refrigerating capacity for cooling or fails to stop running, the refrigerating compensation device can perform refrigerating compensation on the natural heat dissipation device, and the normal heat dissipation of the system is ensured.
Further, a second two-way valve is connected in series on the branch where the refrigeration compensation device is located.
When the refrigeration compensation device stops running, in order to avoid a part of heat exchange medium to pass through the branch where the refrigeration compensation device is located, the heat exchange efficiency is reduced, the second two-way valve can be closed to ensure that the heat exchange medium circulates in a correct loop, and the normal running of the system is ensured, and the reliability is good.
Further, the inlet of the air cooling device is provided with a first temperature sensor, and the inlet of the liquid cooling module is provided with a second temperature sensor.
When the first temperature sensor detects that the temperature of the heat exchange medium at the inlet of the air cooling device is lower than a set value, the frequency of the first frequency converter or the second frequency converter can be properly reduced, or the third interface is enlarged to reduce the heat exchange medium flowing through the natural heat dissipation device, increase the heat exchange efficiency of the heat exchange medium, improve the refrigerating capacity, improve the temperature of the heat exchange medium at the inlet of the air cooling device to be higher than a preset value, and ensure the stable operation of the system; when the second temperature sensor detects that the temperature of the heat exchange medium at the inlet of the liquid cooling module is higher than a set value, the first frequency converter can be properly raised, the first two-way valve is opened to increase the proportion of the heat exchange medium flowing through the liquid cooling module or increase the frequency of the second frequency converter, the heat exchange efficiency of the heat exchange medium is increased, the refrigerating capacity is improved, the temperature of the heat exchange medium at the inlet of the liquid cooling module is reduced to be within a preset value, and the stable heat dissipation of the system is ensured; when the second temperature sensor detects that the temperature of the heat exchange medium at the inlet of the liquid cooling device is lower than a set value, the frequency of the first frequency converter or the second frequency converter can be properly reduced, or the third interface is enlarged to reduce the heat exchange medium flowing through the natural heat dissipation device, the opening degree of the first two-way valve is reduced, the proportion of the heat exchange medium flowing through the liquid cooling module is reduced, the temperature of the heat exchange medium at the inlet of the liquid cooling module is increased to be higher than a preset value, and the stable operation of the system is ensured.
Further, the outlet of the air cooling device is provided with a third temperature sensor, and the outlet of the liquid cooling module is provided with a fourth temperature sensor.
When the third temperature sensor detects that the temperature of the heat exchange medium at the outlet of the air cooling device is higher than a set value, the frequency of the first frequency converter can be properly increased; when the fourth temperature sensor detects that the temperature of the heat exchange medium at the outlet of the liquid cooling module is higher than a set value, the frequency of the first frequency converter can be properly increased, and the first two-way valve is opened to increase the proportion of the heat exchange medium flowing through the liquid cooling module; when the temperature detected by the third temperature sensor and the fourth temperature sensor is higher than the set value, the frequency of the first frequency converter or the second frequency converter can be properly increased, or the third interface is turned down to increase the heat exchange medium flowing through the natural heat dissipation device.
Compared with the prior art, the beneficial effect of this patent is:
1. the liquid cooling module and the air cooling device are naturally cooled through the natural heat dissipation device, so that energy consumption is greatly reduced.
2. Through detection mechanism: the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor detect the system state, and the regulating mechanism: the first frequency converter, the second frequency converter, the three-way valve, the refrigeration compensation device, the first two-way valve and the second two-way valve regulate and control the system operation, so that the system can meet the heat dissipation requirement and avoid the shrinkage and condensation of the components in the server caused by supercooling, and the stable operation of the server in a safe temperature range is ensured.
Drawings
Fig. 1 is a system configuration diagram of the present patent.
Detailed Description
The single-stage serial liquid-gas double-channel natural cooling data center heat dissipation system shown in fig. 1 comprises a liquid cooling module 10, an air cooling device 7 and a natural heat dissipation device 1, wherein an outlet of the liquid cooling module 10 is communicated with an inlet of the natural heat dissipation device 1, an outlet of the natural heat dissipation device 1 is communicated with an inlet of the air cooling device 7, and an outlet of the air cooling device 7 is communicated with an inlet of the liquid cooling module 10.
In the specific implementation process, the air cooling device 7 is a fan wall air conditioner tail end and comprises a cold water coil pipe 8 and a fan wall 9 formed by connecting a plurality of fans in parallel, and the fan wall 9 enables heat exchange media in the cold water coil pipe 8 and air in a data center to exchange heat by blowing air to the cold water coil pipe 8.
The liquid cooling module 10 is used for absorbing centralized heat of main heating elements in the server, and the air cooling device 7 is used for absorbing distributed heat of other elements in the server. The liquid cooling module 10 utilizes the characteristics of large specific heat capacity, fast convection heat exchange, large evaporation latent heat and the like of the liquid heat exchange medium, so that the natural cooling device 1 can be combined to naturally cool the main heating element of the server, the heat dissipation requirement is met, and secondly, because 70% -80% of heat in the server is taken away by the liquid cooling module, the rest of distributed heat in the server allows the air supply temperature to be further increased to 32 ℃, so that the air cooling device 7 can be combined to naturally cool other heating elements in the server. In conclusion, the natural cold source is fully utilized to dissipate heat, so that the running and maintenance cost of the compressor and other parts in mechanical refrigeration is reduced, the energy consumption is greatly reduced, and the energy is saved.
The three-way valve 2 comprises a first interface a, a second interface b and a third interface c; the outlet of the liquid cooling module 10 is communicated with the inlet of the natural heat radiator through a first interface a and a second interface b, and the third interface c is communicated with the outlet of the natural heat radiator.
The third interface c is communicated with the outlet of the natural heat radiator 1, which means that the high-temperature heat exchange medium output from the outlet of the liquid cooling module 10 can exchange heat without passing through the natural heat radiator 1 and return to the cold water coil 8 again for heat exchange, so that when the refrigerating capacity is excessive, the third interface c can be properly opened, the refrigerating capacity is reduced, the energy consumption of the natural heat radiator 1 is saved, the liquid cooling module 10 and the cold water coil 8 can be protected from being too low in temperature to a certain extent, the reliability is high, and because the phenomena of poor contact among the elements, the circuit board, the circuits and the like are possibly caused when the temperature of the server is too low, and meanwhile, the phenomena of condensation are possibly generated due to supercooling, so that the potential safety hazards such as circuit short circuit, mold breeding and material corrosion caused by condensation are avoided, and the safe and stable operation of the system is further ensured.
The present patent further includes a first two-way valve 6, wherein two ports of the first two-way valve 6 are respectively connected to an outlet and an inlet of the cold water coil 8.
When the refrigerating capacity of the cold water coil pipe 8 is excessive or the refrigerating capacity of the liquid cooling module 10 is too low, the opening degree of the first two-way valve 6 can be properly enlarged, so that part of low-temperature heat exchange medium at the outlet of the natural heat radiator 1 directly flows into the liquid cooling module 10 without passing through the cold water coil pipe 8; when the refrigerating capacity of the cold water coil pipe 8 is too small or the refrigerating capacity of the liquid cooling module 10 is excessive, the opening degree of the first two-way valve 6 can be properly reduced, so that most of low-temperature heat exchange medium at the outlet of the natural heat radiating device 1 flows into the liquid cooling module 10 after passing through the cold water coil pipe 8, and therefore, the opening degree of the first two-way valve 6 is convenient to adjust according to actual conditions, the flexibility is good, and the system adaptability is improved.
The patent also includes a water pump 3 provided at the outlet of the natural heat sink, and a first frequency converter 24 is provided on the water pump 3.
When the refrigerating capacity can not meet the requirements of the cold water coil pipe 8 or the liquid cooling module 10, the working frequency of the first frequency converter 24 can be properly increased, so that the water pump 3 is accelerated to operate, the heat exchange efficiency of a heat exchange medium in a loop is improved, the refrigerating capacity is improved, and the stability is good; when the refrigerating capacity is surplus, the working frequency of the first frequency converter 24 can be properly reduced, so that the water pump 3 is slowed down in running speed, and the heat exchange efficiency of the heat exchange medium in the loop is reduced, thereby reducing the refrigerating capacity, saving energy consumption and avoiding damage caused by shrinkage or condensation due to supercooling of the server.
The natural heat radiator 1 is a cooling tower or a drier-cooler equipped with a fan, and the fan is provided with a second frequency converter 23.
When the refrigerating capacity can not meet the requirements of the cold water coil pipe 8 or the liquid cooling module 10, the working frequency of the second frequency converter 23 can be properly increased, so that the natural heat radiating device 1 can be accelerated to operate, the heat exchange efficiency of a heat exchange medium and the natural environment can be improved, the refrigerating capacity can be further increased, and the normal operation of the system can be ensured; when the refrigerating capacity is surplus, the working frequency of the second frequency converter 23 can be properly reduced, and the heat exchange efficiency of the heat exchange medium and the natural environment is reduced, so that the refrigerating capacity is reduced, the energy consumption is saved, and the damage caused by shrinkage or condensation due to supercooling of the server is avoided.
The cooling compensation device 26 is connected in parallel with the inlet and the outlet of the natural heat radiating device 1 or connected in parallel with the inlet of the air cooling device and the outlet of the liquid cooling module.
When the natural heat radiator 1 cannot provide enough refrigerating capacity for cooling or fails to stop running, the refrigerating compensation device 26 can perform refrigerating compensation on the natural heat radiator 1, so that the normal heat radiation of the system is ensured.
A second two-way valve 27 is connected in series with the branch of the refrigeration compensation device 26.
When the refrigeration compensation device 26 stops running, in order to avoid that a part of heat exchange medium passes through the branch where the refrigeration compensation device 26 is located, the heat exchange efficiency is reduced, the second two-way valve 27 can be closed to ensure that the heat exchange medium circulates in a correct loop, and the normal running of the system is ensured, so that the reliability is good.
The inlet of the cold water coil pipe 8 is provided with a first temperature sensor 11, and the inlet of the liquid cooling module 10 is provided with a second temperature sensor 13.
The outlet of the cold water coil pipe 8 is provided with a third temperature sensor 12, and the outlet 10 of the liquid cooling module is provided with a fourth temperature sensor 14.
The working principle of the heat dissipation system of the single-stage serial liquid-gas dual-channel natural cooling data center is as follows:
the system opens the first interface a and the second interface b and closes the third interface c and the first two-way valve 6 in a default starting state.
1. When the third temperature sensor 12 detects that the temperature is higher than the set value, the frequency of the first frequency converter 25 may be appropriately increased; when the second temperature sensor 13 or the fourth temperature sensor 14 detects that the temperature is higher than the set value, the first two-way valve 6 is opened to increase the proportion of the heat exchange medium flowing through the liquid cooling module 10, and if the first two-way valve 6 is opened to the maximum, the frequency of the first frequency converter 25 can be properly increased to adjust; when the third temperature sensor 12 and the fourth temperature sensor 14 detect that the temperature is higher than the set value, the frequency of the first frequency converter 24 is preferentially increased to reduce the temperature, then the third interface c is turned off to increase the heat exchange medium flowing through the natural heat dissipation device 1, then the frequency of the second frequency converter 23 is increased, the heat exchange efficiency of the heat exchange medium is increased by the means, the refrigerating capacity is increased, and the temperature of the second temperature sensor 12, the third temperature sensor 13 and the fourth temperature sensor 14 is reduced to be within a reasonable range of the set value, so that the stable heat dissipation of the system is ensured.
2. When the first temperature sensor 11 detects that the temperature of the heat exchange medium at the inlet of the cold water coil pipe 8 is lower than a set value, firstly reducing the frequency of the first frequency converter 24, then reducing the frequency of the second frequency converter 23, and if the temperature cannot be effectively increased, expanding the opening of the third interface c until the temperature of the first temperature sensor 11 is increased to be within a reasonable range of the set value; when the second temperature sensor 13 detects that the temperature of the heat exchange medium at the inlet of the cold water coil pipe 8 is lower than the set value, the opening of the first two-way valve 6 is firstly turned down, and if the temperature cannot be effectively increased, the temperature is sequentially adjusted according to the sequence until the temperature of the second temperature sensor 13 is increased to be within a reasonable range of the set value, so that energy is saved, the supercooling of a server is prevented, and the stable operation of the system is ensured.
3. When the third temperature sensor 12 and the fourth temperature sensor 14 both detect that the temperature is higher than the set value and the first frequency converter 24 has risen to the highest frequency, and the first temperature sensor 11 or the second temperature sensor 13 detects that the temperature is lower than the set value and the first two-way valve 6 has been completely closed, the adjustment operation in the working principle 1 is preferentially executed, the cooling capacity of the natural cooling device 1 is improved, and the normal cooling of the system is ensured.
4. When the ambient temperature is too high or the natural heat radiator 1 fails to cause insufficient refrigerating capacity (enough refrigerating capacity cannot be provided even if the adjusting action of the working principle 1 is adopted), the refrigerating compensation device 26 is started, the second two-way valve 27 is opened, normal operation of the system is ensured, enough cold source is provided for the server, and when the cooling capacity of the natural heat radiator 1 is sufficient or the fault repair is completed, the refrigerating compensation device 26 is stopped and the second two-way valve 27 is closed.
Claims (6)
1. The single-stage serial liquid-gas double-channel natural cooling data center heat dissipation system is characterized by comprising a liquid cooling module, an air cooling device and a natural heat dissipation device, wherein an outlet of the liquid cooling module is communicated with an inlet of the natural heat dissipation device, an outlet of the natural heat dissipation device is communicated with an inlet of the air cooling device, and an outlet of the air cooling device is communicated with an inlet of the liquid cooling module;
the three-way valve comprises a first interface, a second interface and a third interface; the outlet of the liquid cooling module is communicated with the inlet of the natural heat dissipation device through a first interface and a second interface, and the third interface is communicated with the outlet of the natural heat dissipation device;
the air cooling device further comprises a first two-way valve, wherein two interfaces of the first two-way valve are respectively communicated with an outlet and an inlet of the air cooling device;
the inlet of the air cooling device is provided with a first temperature sensor, and the inlet of the liquid cooling module is provided with a second temperature sensor;
when the first temperature sensor detects that the temperature of the heat exchange medium at the inlet of the air cooling device is lower than a set value, the third interface is enlarged to reduce the heat exchange medium flowing through the natural heat dissipation device, increase the heat exchange efficiency of the heat exchange medium and improve the refrigerating capacity; when the second temperature sensor detects that the temperature of the heat exchange medium at the inlet of the liquid cooling module is higher than a set value, the first two-way valve is opened to increase the proportion of the heat exchange medium flowing through the liquid cooling module, so that the heat exchange efficiency of the heat exchange medium is increased, and the refrigerating capacity is improved; when the second temperature sensor detects that the temperature of the heat exchange medium at the inlet of the liquid cooling device is lower than a set value, the third interface is enlarged to reduce the heat exchange medium flowing through the natural heat dissipation device, the opening of the first two-way valve is reduced, and the proportion of the heat exchange medium flowing through the liquid cooling module is reduced.
2. The heat dissipation system of a single-stage tandem type liquid-gas dual-channel natural cooling data center according to claim 1, further comprising a water pump arranged at an outlet or an inlet of the natural heat dissipation device, wherein the water pump is provided with a first frequency converter.
3. The heat dissipation system of a single-stage tandem type liquid-gas dual-channel natural cooling data center according to claim 1, wherein the natural heat dissipation device is provided with a second frequency converter.
4. The heat dissipation system of a single-stage tandem type liquid-gas dual-channel natural cooling data center according to claim 1, further comprising a refrigeration compensation device connected in parallel with an inlet and an outlet of the natural heat dissipation device or connected in parallel with an inlet of the air cooling device and an outlet of the liquid cooling module.
5. The heat dissipating system of a single-stage tandem type liquid-gas dual-channel natural cooling data center of claim 4, wherein the branch on which the refrigeration compensation device is located is connected in series with a second two-way valve.
6. The heat dissipation system of a single-stage tandem type liquid-gas dual-channel natural cooling data center according to any one of claims 1 to 5, wherein the outlet of the air cooling device is provided with a third temperature sensor, and the outlet of the liquid cooling module is provided with a fourth temperature sensor.
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| CN106016534A (en) * | 2016-05-23 | 2016-10-12 | 合肥工业大学 | Compound air conditioning system with natural cooling function |
| CN205878435U (en) * | 2016-06-30 | 2017-01-11 | 深圳市艾特网能技术有限公司 | Naturally, cool computer lab air conditioner |
| CN205878451U (en) * | 2016-08-15 | 2017-01-11 | 阿里巴巴集团控股有限公司 | Data center's refrigerating system and computer lab |
| CN206533681U (en) * | 2017-03-24 | 2017-09-29 | 广东申菱环境系统股份有限公司 | Single-stage tandem liquid gas binary channels natural cooling data center heat dissipation system |
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