Data center based on liquid hydrogen energy supply cooling
Technical Field
The invention relates to the technical field of data centers, in particular to a liquid hydrogen energy supply and cooling-based data center.
Background
Data centers are production centers, processing centers and storage centers for information and internet services, and with the rapid development of communication and network technologies, the scale and power density of data centers are increasing. Most of the electronic components of the data center are driven by a low-voltage direct-current power supply to operate. The power consumption cost accounts for more than 20% of all the cost, and is the main cost of the data center. In the traditional data center, nearly 40% of energy is consumed in heat dissipation and refrigeration, and the energy utilization efficiency is very low; therefore, the heat dissipation problem is solved, and a large part of expenses can be saved.
In the past, under a small-scale state of a data center, the operation cost of energy consumption accounts for a small part of the whole operation cost, so most customers can pay more attention to the construction of the data center and ignore the operation cost of the energy consumption, after the climax of the construction of the data center for many years, the scale of the data center is continuously developed, the operation cost is continuously increased, the energy consumption is already the main expenditure in the operation cost, the proportion of the energy consumption cost even reaches 60-70% of the operation and maintenance cost of the data center, and the huge energy consumption cost which cannot be ignored is realized, so that people pay more and more attention to how to reduce the operation cost of the data center by saving the energy consumption.
The continuous development and evolution of modern data centers has led to the continuous increase of energy consumption requirements, which in turn requires better cooling technologies and solutions, mainly wind cooling technology and water cooling technology. Wherein, the air cooling technique includes natural wind refrigeration and single refrigeration through air conditioner or fan, promptly: the temperature difference between the external air temperature and the equipment server is used for cooling the equipment server, but the natural wind refrigeration has the defect of being limited by regions and is not favorable for popularization; the air conditioner or the fan has the defects of high power consumption and high cost.
Compared with the air cooling technology, the water cooling technology has relatively low use cost, and the water cooling technology saves energy by 30 percent compared with the air cooling technology. The water cooling technology mainly adopts a liquid cooling box for loading refrigerating fluid, the server is placed in the liquid cooling box and completely immersed in the refrigerating fluid of the liquid cooling box, during use, the refrigerating fluid in the liquid cooling box can absorb heat generated during the working of the server, and heat exchange is carried out with air through the rethread so as to release the absorbed heat to the air, so that the heat dissipation of the server is realized. However, when the heat absorbed refrigerating fluid exchanges heat with air, if the ambient temperature is high, the absorbed heat is not easily released into the air by the heat absorbed refrigerating fluid, so that the temperature of the refrigerating fluid is rapidly increased and the heat cannot be continuously absorbed, and the server cannot dissipate heat in time and cannot operate safely.
Disclosure of Invention
The invention aims to provide a liquid hydrogen-based energy supply and cooling data center which is low in dependence on environment, low in energy consumption, low in cost, stable in use and high in safety.
In order to achieve the purpose, the invention adopts the following technical scheme: a liquid hydrogen energy-based cooling data center, comprising: the system comprises a liquid cooling box loaded with refrigerating fluid, a plurality of servers immersed in the refrigerating fluid in the liquid cooling box, a liquid hydrogen tank, a first heat exchanger, a second heat exchanger, a heater, a fuel cell capable of generating current by using hydrogen and a DCDC converter, wherein the output end of the liquid hydrogen tank is connected with the input end of the tube side of the first heat exchanger through a liquid hydrogen pump, the output end of the tube side of the first heat exchanger is connected with the input end of the heater, the output end of the heater is connected with the input end of the fuel cell, the output end of the fuel cell is electrically connected with the input end of the DCDC converter, the output end of the DCDC converter is electrically connected with a power distribution module of each server, the output end of the shell side of the first heat exchanger is connected with the input end of the tube side of the second heat exchanger, the output end of the tube side of the second heat exchanger is connected with the input end of the shell side of the first heat exchanger through an air pump, the output end of the shell pass of the second heat exchanger is communicated with the refrigerating fluid inlet of the liquid cooling box, and the refrigerating fluid outlet of the liquid cooling box is connected with the input end of the shell pass of the second heat exchanger through a liquid pump.
Further, the aforementioned data center based on liquid hydrogen energy cooling, wherein: the output end of the tube pass of the second heat exchanger is connected with the input end of the air pump through an eighth connecting pipeline, the output end of the air pump is connected with the input end of the shell pass of the first heat exchanger through a ninth connecting pipeline, the output end of the shell pass of the second heat exchanger is communicated with the refrigerating fluid inlet of the liquid cooling box through a tenth connecting pipeline, the refrigerating fluid outlet of the liquid cooling box is connected with the input end of the liquid pump through an eleventh connecting pipeline, and the output end of the liquid pump is connected with the input end of the shell pass of the second heat exchanger through a twelfth connecting pipeline.
Further, the aforementioned data center based on liquid hydrogen energy cooling, wherein: the DC-DC converter also comprises a storage battery, wherein the input end of the storage battery is electrically connected with the output end of the DCDC converter.
Further, the aforementioned data center based on liquid hydrogen energy cooling, wherein: the storage battery is further included, and the input end of the storage battery is electrically connected with the output end of the DCDC converter through a thirteenth connecting pipeline.
Further, the aforementioned data center based on liquid hydrogen energy cooling, wherein: the output end of the storage battery is electrically connected with the power distribution module of each server.
Further, the aforementioned data center based on liquid hydrogen energy cooling, wherein: and the output end of the storage battery is electrically connected with the power distribution module of each server through a fourteenth connecting pipeline.
Through the implementation of the technical scheme, the invention has the beneficial effects that: (1) the cooling system can not only effectively dissipate heat and cool the server, but also provide stable electric energy required by the work for the server, and has low use cost, low energy consumption, high use stability and safety; (2) can be built in any region, has low dependence on the environment and is suitable for popularization.
Drawings
Fig. 1 is a schematic diagram of an operating principle of a liquid hydrogen-based cooling and energy-supplying data center according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the liquid hydrogen-based cooling data center includes: the system comprises a liquid cooling tank 2 loaded with refrigerating fluid 1, a plurality of servers 3 immersed in the refrigerating fluid 1 in the liquid cooling tank 2, a liquid hydrogen tank 4, a first heat exchanger 5, a second heat exchanger 6, a heater 7, a fuel cell 8 capable of generating current by using hydrogen and a DCDC converter 9, wherein the output end of the liquid hydrogen tank 4 is connected with the input end of a liquid hydrogen pump 11 through a first connecting pipeline 10, the output end of the liquid hydrogen pump 11 is connected with the input end of the tube pass of the first heat exchanger 5 through a second connecting pipeline 12, the output end of the tube pass of the first heat exchanger 5 is connected with the input end of the heater 7 through a third connecting pipeline 13, the output end of the heater 7 is connected with the input end of the fuel cell 8 through a fourth connecting pipeline 14, the output end of the fuel cell 8 is electrically connected with the input end of the DCDC converter 9 through a fifth connecting pipeline 15, the output end of the DCDC converter 9 is electrically connected with a power distribution module 31 of each server 3 through a sixth connecting pipeline 16, the output end of the shell pass of the first heat exchanger 5 is connected with the input end of the tube pass of the second heat exchanger 6 through a seventh connecting pipeline 17, the output end of the tube pass of the second heat exchanger 6 is connected with the input end of an air pump 19 through an eighth connecting pipeline 18, the output end of the air pump 19 is connected with the input end of the shell pass of the first heat exchanger 5 through a ninth connecting pipeline 20, the output end of the shell pass of the second heat exchanger 6 is communicated with a refrigerating fluid inlet of the liquid cooling tank 2 through a tenth connecting pipeline 21, a refrigerating fluid outlet of the liquid cooling tank 2 is connected with the input end of a liquid pump 23 through an eleventh connecting pipeline 22, and the output end of the liquid pump 23 is connected with the input end of the shell pass of the second heat exchanger 6 through a twelfth connecting pipeline 24;
in this embodiment, the system further includes a storage battery 25, an input end of the storage battery 25 is electrically connected to an output end of the DCDC converter 9 through a thirteenth connecting pipeline 26, and an output end of the storage battery 25 is electrically connected to the power distribution module 31 of each server 3 through a fourteenth connecting pipeline 27, so that a part of the stable current converted by the DCDC converter 9 of the fuel cell 8 can be stored in the storage battery 25 in addition to the stable current for each server 3, when the system fails in the liquid hydrogen power supply, the storage battery 25 can be used as a standby power supply to supply power to each server 3, thereby ensuring the orderly and safe operation of the equipment;
when the liquid hydrogen pump is started, liquid hydrogen in the liquid hydrogen tank 4 is pumped out through the liquid hydrogen pump 11, the liquid hydrogen is injected into the tube pass of the first heat exchanger 5 through the first connecting pipeline 10 and the second connecting pipeline 12 in sequence, low-temperature or normal-temperature hydrogen is generated through heat exchange with the shell pass of the first heat exchanger 5, the low-temperature or normal-temperature hydrogen enters the heater 7 through the third connecting pipeline 13, the low-temperature or normal-temperature hydrogen is heated by the heater 7 to become normal-temperature hydrogen, the normal-temperature hydrogen is supplied to the fuel cell 8 through the fourth connecting pipeline 14, electric energy generated by the fuel cell 8 through the normal-temperature hydrogen enters the DCDC converter 9 through the fifth connecting pipeline 15 and is converted by the DCDC converter 9 to generate stable current, wherein a part of the electric energy is stored in the storage battery 25 through the thirteenth connecting pipeline 26, and the other part of the electric energy is supplied to the power distribution module 31 of each server 3 in the liquid cooling tank 2 through the sixth connecting pipeline 16, the normal use of each server 3 is ensured through the power distribution module 31, and liquid hydrogen energy supply is realized;
each server 3 can distribute out the heat and make the refrigerating fluid 1 in the liquid cooling case 2 heat up gradually and form overheated refrigerating fluid in the use, for guaranteeing the radiating effect of refrigerating fluid to each server 3, need carry out the heat transfer cooling to the refrigerating fluid, and concrete heat transfer flow is: the liquid pump 23 will continuously inject the overheated refrigerating fluid in the liquid cooling tank 2 into the shell pass of the second heat exchanger 6 through the eleventh connecting pipeline 22 and the twelfth connecting pipeline 24 in sequence, and the overheated refrigerating fluid exchanges heat with the low-temperature heat exchange gas in the tube pass of the second heat exchanger 6 to reform the low-temperature refrigerating fluid, and the low-temperature refrigerating fluid is injected into the liquid cooling tank 2 again through the tenth connecting pipeline 21 to cool each server 3;
the low temperature heat transfer gas in the tube side of second heat exchanger 6 can become high temperature heat transfer gas after carrying out the heat exchange with the overheated cryogenic fluid in the shell side of second heat exchanger 6 and flow out, for guaranteeing the heat transfer effect of second heat exchanger 6 to overheated cryogenic fluid, need exchange heat to high temperature heat transfer gas and cool down, in the tube side that makes high temperature heat transfer gas reconvert to low temperature heat transfer gas after the recirculation let in second heat exchanger 6, specific heat transfer flow is: the air pump 19 will continuously inject the high-temperature heat exchange gas flowing out of the tube pass of the second heat exchanger 6 into the shell pass of the first heat exchanger 5 through the eighth connecting pipeline 18 and the ninth connecting pipeline 20 in sequence, and the low-temperature heat exchange gas is formed again through heat exchange with the low-temperature liquid hydrogen in the tube pass of the first heat exchanger 5, and then the low-temperature heat exchange gas is injected into the tube pass of the second heat exchanger 6 again through the seventh connecting pipeline 17 to exchange heat with the superheated refrigerating fluid in the shell pass of the second heat exchanger 6; the low-temperature liquid hydrogen in the tube pass of the first heat exchanger 5 is subjected to heat exchange with the superheated heat exchange gas in the shell pass of the first heat exchanger 5 and then gradually heated, the heated liquid hydrogen enters the heater 7 through the third connecting pipeline 13 and is heated into normal-temperature hydrogen gas by the heater 7 for the fuel cell 8 to use, and the liquid hydrogen is heated in advance before entering the heater 7, so that the energy consumption of the heater 7 can be greatly reduced; through the above operations, liquid hydrogen cooling is realized.
The invention has the advantages that: (1) the cooling system can not only effectively dissipate heat and cool the server, but also provide stable electric energy required by the work for the server, and has low use cost, low energy consumption, high use stability and safety; (2) can be built in any region, has low dependence on the environment and is suitable for popularization.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but any modifications or equivalent variations made in accordance with the technical spirit of the present invention are within the scope of the present invention as claimed.