CN212381591U - Precise air-conditioning refrigeration system utilizing waste heat of hydrogen energy fuel cell of data center - Google Patents
Precise air-conditioning refrigeration system utilizing waste heat of hydrogen energy fuel cell of data center Download PDFInfo
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- CN212381591U CN212381591U CN202021205352.8U CN202021205352U CN212381591U CN 212381591 U CN212381591 U CN 212381591U CN 202021205352 U CN202021205352 U CN 202021205352U CN 212381591 U CN212381591 U CN 212381591U
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Abstract
The utility model discloses an accurate air-conditioning refrigeration system utilizing waste heat of a hydrogen energy fuel cell of a data center, which comprises a hydrogen energy fuel cell stack, a water-cooling plate device, a lithium bromide absorption water chiller, an accurate air-conditioning unit and a cabinet, wherein hot water generated in the process of generating electric energy by hydrogen and oxygen reaction and hot water in the water-cooling plate system of the fuel cell are synthesized to be used as a driving heat source of the lithium bromide absorption water chiller, chilled water generated by the lithium bromide absorption water chiller is used for cooling the accurate air-conditioning of the data center, the cooled hot water is used as cooling water again to enter the water-cooling plate system of the fuel cell, thereby refrigerating by utilizing the waste heat generated by the hydrogen energy fuel cell stack reaction and the water-cooling plate device, fully improving the conversion efficiency of the hydrogen energy and reducing the cost, the recovered cold water can also be used for water-cooling of the hydrogen energy fuel cell stack, the service life of the fuel cell is, the purposes of energy conservation and emission reduction of the data center are achieved.
Description
Technical Field
The utility model relates to a data center refrigeration technology field specifically is an utilize accurate air conditioner refrigerating system of data center hydrogen energy fuel cell waste heat.
Background
At present, a data center mainly adopts a form of power grid power supply and diesel power generation as a standby power supply, the total power consumption of the Chinese data center in 2018 accounts for 2.35% of the power consumption of the whole Chinese society, the total power consumption reaches 1,608.89 hundred million kilowatt hours, the expected annual average growth rate in the future reaches 10.64%, the total power consumption of the Chinese data center in 2023 reaches 2,667.92 hundred million kilowatt hours, and meanwhile, the energy consumption of a data center refrigerating system accounts for more than 40% of the total power consumption. Compared with the existing electric energy, the fuel cell has the advantages of energy conservation, high conversion efficiency, zero pollution, stable operation and the like, can replace a power grid and a diesel generator to supply power for a data center, and has the energy conversion efficiency of more than 50 percent. Research by microsoft shows that the solid oxide fuel cell can reduce the emission of carbon dioxide by 49%, reduce nitrogen oxides by 91%, reduce carbon monoxide by 68% and reduce volatile organic compounds by 93% when replacing a power grid to supply power for a data center. In the process of operation, although the fuel cell has high energy conversion efficiency, it and the cooling system generate a large amount of hot water waste heat according to the operation temperature (the operation temperature of the proton exchange membrane fuel cell and the alkaline fuel cell is as low as 80 ℃, and the operation temperature of the solid oxide fuel cell is as high as 600 ℃), wherein 50-60% of the heat of the fuel cell is taken away by the cooling system under the limit state, and the waste heat has the possibility of being reused, and the related technology about the waste heat reuse is not proposed in the prior art at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utilize accurate air conditioner refrigerating system of data center hydrogen energy fuel cell waste heat can improve hydrogen energy fuel cell energy utilization efficiency, reduces the data center energy consumption, realizes data center energy saving and emission reduction to solve the too big problem of data center hydrogen energy fuel cell waste heat utilization and data center refrigerating system energy consumption.
In order to achieve the above object, the utility model provides a following technical scheme: a precise air-conditioning refrigeration system utilizing waste heat of a hydrogen energy fuel cell of a data center comprises a hydrogen energy fuel cell stack, a water-cooling plate device, a lithium bromide absorption water chiller, a precise air-conditioning unit and a cabinet, wherein the hydrogen energy fuel cell stack is arranged in the water-cooling plate device, and a water outlet on the water-cooling plate device is connected with a cooling water hot water pipeline and a reaction hot water pipeline; the other ends of the cooling water hot water pipeline and the reaction hot water pipeline are connected in parallel at a water inlet of a lithium bromide absorption water chiller, and a liquid pump is arranged on the parallel pipelines; the water outlet of the lithium bromide absorption water cooler is respectively connected with two cooling water pipelines, one cooling water pipeline is connected with the water inlet on the water cooling plate device, a liquid pump is installed on the cooling water pipeline, and meanwhile, the cooling water pipeline is connected with a drainage pipeline in parallel; and the other cooling water pipeline is connected to a precision air conditioning unit, a liquid pump is installed on the cooling water pipeline, the precision air conditioning unit is installed on a cabinet, and a circulating air supply channel is arranged below the precision air conditioning unit by the cabinet.
Preferably, the hot water generated by the hydrogen energy fuel cell stack and the water cooling plate device is reused as a driving heat source of the lithium bromide absorption water chiller to generate cold water.
Preferably, the water-cooling plate device adopted by the hydrogen energy fuel cell stack is a microchannel cold plate, and the microchannel cold plate is tightly attached to the hydrogen energy fuel cell stack for cooling.
Preferably, the lithium bromide absorption water chiller is a hot water type lithium bromide absorption water chiller, which comprises a generator, a condenser, an evaporator, an absorber, a heat exchanger, a throttling device and a solution pump, and generates cold water for a precision air conditioning unit of a data center.
Preferably, the precision air conditioning unit is a water-cooled precision air conditioning unit and consists of a finned tube heat exchanger, a high-efficiency centrifugal fan, an intelligent control system and a humidifier.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the precise air-conditioning refrigeration system utilizing the waste heat of the hydrogen energy fuel cell of the data center utilizes the waste heat generated by the reaction of the hydrogen energy fuel cell stack and the water cooling plate device to refrigerate, the conversion efficiency of hydrogen energy is fully improved, the cost is reduced, the recovered cold water can also be used for water cooling of the hydrogen energy fuel cell stack, the service life of the fuel cell is prolonged, meanwhile, the energy consumption of the refrigeration system of the data center can be reduced, and the purposes of energy conservation and emission reduction of the data center are achieved.
Drawings
Fig. 1 is a block diagram of the system structure of the present invention.
In the figure: 1. a hydrogen energy fuel cell stack; 2. a water-cooled plate device; 3. a lithium bromide absorption chiller; 4. a precision air conditioning unit; 5. an air supply channel; 6. a cabinet; 7. a liquid pump; 8. a cooling water hot water pipeline; 9. a cooling water pipeline; 10. a water discharge pipeline; 11. a reaction hot water pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a precise air-conditioning and refrigerating system using the waste heat of a hydrogen energy fuel cell in a data center includes a hydrogen energy fuel cell stack 1, a water-cooling plate device 2, a lithium bromide absorption water chiller 3, a precise air-conditioning unit 4 and a cabinet 6, wherein the hydrogen energy fuel cell stack 1 is arranged in the water-cooling plate device 2, and a water outlet of the water-cooling plate device 2 is connected with a cooling water hot water pipeline 8 and a reaction hot water pipeline 11; the other ends of the cooling water hot water pipeline 8 and the reaction hot water pipeline 11 are connected in parallel at the water inlet of the lithium bromide absorption water cooler 3, and a liquid pump 7 is arranged on the parallel pipelines; the water outlet of the lithium bromide absorption water cooler 3 is respectively connected with two cooling water pipelines 9, one cooling water pipeline 9 is connected with the water inlet of the water cooling plate device 2, a liquid pump 7 is installed on the cooling water pipeline 9, and meanwhile, a water drainage pipeline 10 is connected in parallel; another cooling water pipeline 9 is connected to the precision air conditioning unit 4, a liquid pump 7 is installed on the cooling water pipeline 9, the precision air conditioning unit 4 is installed on a cabinet 6, and a circulating air supply channel 5 is arranged below the precision air conditioning unit 4 on the cabinet 6.
In the above embodiment, the hot water produced by the hydrogen fuel cell stack 1 and the water-cooling plate device 2 is reused as a driving heat source of the lithium bromide absorption chiller 3 to produce cold water.
In the above embodiment, the water-cooling plate device 2 used in the hydrogen fuel cell stack 1 is a microchannel cold plate, and the microchannel cold plate is closely attached to the hydrogen fuel cell stack 1 to cool it.
In the above embodiment, the lithium bromide absorption chiller 3 is a hot water type lithium bromide absorption chiller, which includes a generator, a condenser, an evaporator, an absorber, a heat exchanger, a throttling device and a solution pump, and generates cold water for the precision air conditioning unit 4 of the data center.
In the above embodiment, the precision air conditioning unit 4 is a water-cooled precision air conditioning unit, and is composed of a finned tube heat exchanger, a high-efficiency centrifugal fan, an intelligent control system, and a humidifier.
The working principle is as follows: this utilize accurate air conditioner refrigerating system of data center hydrogen energy fuel cell waste heat, when the system operation, hydrogen energy fuel cell pile 1 and water-cooling plate device 2 generate hot water (the temperature can reach more than 70 ℃), get into lithium bromide absorption cold water machine 3 through cooling water hot-water pipeline 8 and reaction hot-water line 11 and produce the cooling water, the cooling water is sent into water-cooling accurate air conditioning unit 4 and is accomplished the heat transfer with the data center hot-air in rack 6 by liquid pump 7 and is generated cold air, the cold air gets into rack 6 cooling server electronic equipment through air supply channel 5, absorb the hot water after the refrigeration by lithium bromide absorption cold water machine 3 and become low temperature cold water, its part is as the cooling water of water-cooling plate device 2 through cooling water cooling water pipeline 9, the surplus part is discharged the system through drainage pipe 10 and is continued the electrolysis and is produced.
In summary, the following steps: this utilize accurate air conditioner refrigerating system of data center hydrogen energy fuel cell waste heat utilizes the reaction of hydrogen energy fuel cell stack 1 and the waste heat that water-cooling plate device 2 produced to refrigerate, the abundant conversion efficiency that has improved the hydrogen energy and the cost is reduced, and the cold water of retrieving also can be used to the water-cooling of hydrogen energy fuel cell stack 1, increases fuel cell's life, can reduce data center refrigerating system energy consumption simultaneously, realizes data center energy saving and emission reduction's purpose.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an utilize accurate air conditioner refrigerating system of data center hydrogen energy fuel cell waste heat, includes hydrogen energy fuel cell pile (1), water-cooling plate device (2), lithium bromide absorption cold water machine (3), accurate air conditioning unit (4) and rack (6), its characterized in that: the hydrogen energy fuel cell stack (1) is arranged in the water cooling plate device (2), and a water outlet on the water cooling plate device (2) is connected with a cooling water hot water pipeline (8) and a reaction hot water pipeline (11); the other ends of the cooling water hot water pipeline (8) and the reaction hot water pipeline (11) are connected in parallel at a water inlet of the lithium bromide absorption water chiller (3), and a liquid pump (7) is arranged on the parallel pipelines; the water outlet of the lithium bromide absorption water cooler (3) is respectively connected with two cooling water pipelines (9), one cooling water pipeline (9) is connected with the water inlet of the water cooling plate device (2), a liquid pump (7) is installed on the cooling water pipeline (9), and meanwhile, a water drainage pipeline (10) is connected in parallel; and the other cooling water pipeline (9) is connected to the precision air conditioning unit (4), a liquid pump (7) is installed on the cooling water pipeline (9), the precision air conditioning unit (4) is installed on the cabinet (6), and the circulating air supply channel (5) is arranged below the precision air conditioning unit (4) of the cabinet (6).
2. The precise air-conditioning and refrigerating system utilizing the waste heat of the hydrogen energy fuel cell of the data center as claimed in claim 1, is characterized in that: the hot water generated by the hydrogen energy fuel cell stack (1) and the water cooling plate device (2) is reused as a driving heat source of the lithium bromide absorption water cooler (3) to generate cold water.
3. The precise air-conditioning and refrigerating system utilizing the waste heat of the hydrogen energy fuel cell of the data center as claimed in claim 1, is characterized in that: the water-cooling plate device (2) adopted by the hydrogen energy fuel cell stack (1) is a micro-channel cold plate, and the micro-channel cold plate is tightly attached to the hydrogen energy fuel cell stack (1) for cooling.
4. The precise air-conditioning and refrigerating system utilizing the waste heat of the hydrogen energy fuel cell of the data center as claimed in claim 1, is characterized in that: the lithium bromide absorption water chiller (3) is a hot water type lithium bromide absorption water chiller, and comprises a generator, a condenser, an evaporator, an absorber, a heat exchanger, a throttling device and a solution pump, and the generator generates cold water to be used for a precise air conditioning unit (4) of a data center.
5. The precise air-conditioning and refrigerating system utilizing the waste heat of the hydrogen energy fuel cell of the data center as claimed in claim 1, is characterized in that: the precise air conditioning unit (4) adopts a water-cooled precise air conditioning unit and consists of a finned tube heat exchanger, a high-efficiency centrifugal fan, an intelligent control system and a humidifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021205352.8U CN212381591U (en) | 2020-06-27 | 2020-06-27 | Precise air-conditioning refrigeration system utilizing waste heat of hydrogen energy fuel cell of data center |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021205352.8U CN212381591U (en) | 2020-06-27 | 2020-06-27 | Precise air-conditioning refrigeration system utilizing waste heat of hydrogen energy fuel cell of data center |
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| CN212381591U true CN212381591U (en) | 2021-01-19 |
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| CN202021205352.8U Active CN212381591U (en) | 2020-06-27 | 2020-06-27 | Precise air-conditioning refrigeration system utilizing waste heat of hydrogen energy fuel cell of data center |
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