CN114071973A - Data center cold and heat accumulation comprehensive energy-saving system and regulation and control method thereof - Google Patents
Data center cold and heat accumulation comprehensive energy-saving system and regulation and control method thereof Download PDFInfo
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- CN114071973A CN114071973A CN202111400641.2A CN202111400641A CN114071973A CN 114071973 A CN114071973 A CN 114071973A CN 202111400641 A CN202111400641 A CN 202111400641A CN 114071973 A CN114071973 A CN 114071973A
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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
- H05K7/20763—Liquid cooling without phase change
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
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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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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The invention relates to a data center cold and heat accumulation comprehensive energy-saving system and a regulation and control method thereof, wherein the regulation and control method comprises the following steps: a data center air conditioning system for regulating a temperature of a data center; a backup refrigerating unit capable of realizing a refrigeration cycle and generating a cold amount; the heat exchange assembly comprises a first heat exchanger, a second heat exchanger and a third heat exchanger, the first heat exchanger is connected with the standby refrigerating unit to obtain the cold energy of the refrigeration cycle, the second heat exchanger is connected with the standby refrigerating unit to obtain the heat released by the refrigerating unit, and the third heat exchanger is connected with the data center air conditioning system to obtain the waste heat generated by the data center air conditioning system; the cold storage tank is connected with the first heat exchanger to store cold energy, and the cold energy stored in the cold storage tank supplies cold for the data center air conditioning system; and the heat storage tank is respectively connected with the second heat exchanger and the third heat exchanger to store heat, and provides domestic hot water for surrounding buildings. The energy consumption of the air conditioning system of the data center can be reduced, and the energy-saving and environment-friendly air conditioning system has important significance for energy conservation and environmental protection.
Description
Technical Field
The invention relates to the technical field of data center energy regulation, in particular to a data center cold and heat accumulation comprehensive energy-saving system and a regulation method thereof.
Background
In the era of digital transformation, the demand of enterprises on online data processing services is rapidly increased, the construction scale and the number of racks of data centers in China are increased year by year, and the energy consumption is greatly increased. By the end of 2019, the total scale of the racks in the data center in China reaches 314.5 thousands of racks, and the increase is 39% compared with the end of 2018. Wherein, the scale of the ultra-large data center machine frame is about 117.9 ten thousand, and the proportion of the ultra-large data center machine frame in the whole data center is 37%; the scale of the rack of the large data center is about 119.4 thousands of racks, the percentage is 38%, and compared with the end of 2018, the scale speed of the data center with the larger size is increased by 41.7%. In 2019, the planning of China is 364 ten thousands of racks in a data center under construction. The data center will increasingly become an important infrastructure affecting the development of the economic society, and the scale of the data center will further expand in the future.
The energy consumption problem caused by the rapid increase of the scale of the data center also receives wide attention, and the energy conservation and consumption reduction become the key points of the construction and the transformation of the energy system of the data center. In 2018, the electricity consumption of the data center in China is 1608.89 hundred million kilowatts, which exceeds 1566.7 million kilowatts of the electricity consumption of the whole society in Shanghai, accounts for 2.35 percent of the electricity consumption of the whole society in China, and accounts for 14.9 percent of the electricity consumption of the third industry. Compared with the traditional machine room, the data center has the characteristics of high density, large scale, high reliability and flexible operation mode. Different from common building facilities, in order to ensure the safe and reliable operation of a computer system, the energy consumption of a data center can generally reach 100-200 times of that of an office building with the same area. The data center has the running requirement of 'good safety performance, reliability and no interruption', the IT equipment is used as core equipment, about 50% of energy consumption of the whole data center is consumed, other about 50% of electric energy is consumed by matching and guaranteeing facilities, and in the matching facilities, in order to guarantee the temperature and humidity environment required by the continuous running of the IT equipment all the year round, the energy consumption of an air conditioning system is the most, and accounts for about 40% of the energy consumption of the whole data center. Therefore, the energy conservation and consumption reduction of the air conditioning system have great significance for reducing the operation cost of the data center.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical defects of large energy consumption and high cost of the air conditioning system of the data center in the prior art, and the invention can reduce the energy consumption of the air conditioning system of the data center and has important significance for energy conservation and environmental protection.
In order to solve the technical problem, the invention provides a data center cold and heat accumulation comprehensive energy-saving system, which comprises:
a data center air conditioning system for regulating a temperature of a data center;
a backup refrigerating unit capable of realizing a refrigeration cycle and generating a cold amount;
the heat exchange assembly comprises a first heat exchanger, a second heat exchanger and a third heat exchanger, the first heat exchanger is connected with the standby refrigerating unit to obtain the cold energy of the refrigeration cycle, the second heat exchanger is connected with the standby refrigerating unit to obtain the heat released by the refrigerating unit, and the third heat exchanger is connected with the data center air conditioning system to obtain the waste heat generated by the data center air conditioning system;
the cold storage tank is connected with the first heat exchanger to store cold energy, and the cold energy stored in the cold storage tank supplies cold for the data center air conditioning system;
and the heat storage tank is respectively connected with the second heat exchanger and the third heat exchanger to store heat, and provides domestic hot water for surrounding buildings.
Preferably, the water pump assembly comprises a third water pump and a seventh water pump, the third water pump is arranged between the cold storage tank and the data center air conditioning system to convey cold energy in the cold storage tank to the data center air conditioning system, and the seventh water pump is arranged between the data center air conditioning system and the cold storage tank to recover water to the cold storage tank.
Preferably, the water pump assembly further includes a first water pump disposed between the cold storage tank and the peripheral office space to deliver the cold in the cold storage tank to the peripheral office space.
Preferably, the water pump system further comprises a distribution unit which is respectively connected with the first water pump and the third water pump so as to adjust the flow ratio of the first water pump and the third water pump.
Preferably, a heating system is arranged in the heat storage tank.
Preferably, the heat storage tank is provided with a water pump assembly, the water pump assembly comprises a sixth water pump, the sixth water pump is arranged between the heat storage tank and the second heat exchanger to pump the water in the heat storage tank into the second heat exchanger for heat exchange, and the second heat exchanger conveys heat of the water to the heat storage tank.
The invention discloses a regulation and control method of a data center cold and heat accumulation comprehensive energy-saving system, which is based on the data center cold and heat accumulation comprehensive energy-saving system and comprises the following steps:
in the night off-peak electricity period, the standby refrigerating unit starts a refrigerating cycle, the cold accumulation tank accumulates cold, and the heat accumulation tank accumulates heat;
during daytime peak electricity hours, the cold storage tank preferentially releases cold to supply cold to the data center air conditioning system, and the shortage part is supplemented by the host of the data center air conditioning system.
Preferably, the method further comprises the following steps:
in the daytime when electricity is balanced, the cold accumulation tank can release the residual cold to supply cold to the data center air conditioning system on the premise of meeting the total cold load demand in the daytime when electricity is at a peak, and the insufficient cold is supplemented by the host of the data center air conditioning system.
Preferably, in the daytime when the electricity is balanced, after the cold accumulation tank meets the cooling demand of the data center air conditioning system, the residual cold of the cold accumulation tank is conveyed to peripheral office places.
Preferably, the heat storage tank provides domestic hot water for surrounding buildings; when the temperature in the heat storage tank does not reach the standard of domestic hot water, an electric heating system arranged in the heat storage tank heats the water in the heat storage tank.
Compared with the prior art, the invention has the following advantages:
1. the invention can store cold and heat generated by the standby refrigerating unit of the data center in the night power load valley period, release cold and heat in the next day, and separate the production and the use of the cold and the heat by using the energy storage equipment so as to achieve the purpose of energy saving.
2. The invention can reduce the energy consumption of the air conditioning system of the data center and has important significance for energy conservation and environmental protection.
3. The invention can play the following three roles in a data center scene: firstly, peak load shifting is carried out, the electricity price difference between the peak load and the valley load is utilized, the standby host is started to cool the cold storage equipment and store heat for the heat storage equipment at the electricity price off-peak time at night, and the standby host is released at the electricity price on-peak time in the daytime to provide proper domestic hot water, so that the problem of insufficient cold supply can be avoided, and the operating cost of the air conditioning system is saved; the cold accumulation device can be used as an emergency cold source, and can form a quenching system with a secondary circulating pump, a circulating water pipeline and a tail end air conditioner to supply cold for the data machine room after the refrigerating unit is shut down when power is lost; and thirdly, the regulation and storage function is realized, for a newly-built data center, the load at the tail end in the initial operation stage is smaller, the refrigeration host can be started to operate at full load, cold is supplied while cold is charged to the cold storage equipment, and redundant cold energy can be supplied to peripheral buildings for use.
Drawings
Fig. 1 is a schematic structural diagram of a cold and heat accumulation comprehensive energy-saving system of a data center.
The specification reference numbers indicate: 1. a cold storage tank; 2. a first heat exchanger; 3. a compressor; 4. an expansion valve; 5. a second heat exchanger; 6. a heat storage tank; 7. a third heat exchanger; 8. data center air conditioning system.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1, the invention discloses a data center cold and heat accumulation comprehensive energy-saving system, which comprises a data center air conditioning system 8, a standby refrigerating unit, a heat exchange assembly, a cold accumulation tank 1 and a heat accumulation tank 6.
The data center air conditioning system 8 is used to regulate the temperature of the data center.
The standby refrigerating unit can realize refrigeration circulation and generate cold.
The heat exchange assembly comprises a first heat exchanger 2, a second heat exchanger 5 and a third heat exchanger 7, the first heat exchanger 2 is connected with the standby refrigerating unit to obtain refrigerating capacity of refrigerating circulation, the second heat exchanger 5 is connected with the standby refrigerating unit to obtain heat released by the refrigerating unit, and the third heat exchanger 7 is connected with the data center air conditioning system 8 to obtain waste heat generated by the data center air conditioning system 8.
The cold storage tank 1 is connected with the first heat exchanger 2 to store cold, and the cold stored in the cold storage tank 1 supplies cold for the data center air conditioning system 8.
The heat storage tank 6 is respectively connected with the second heat exchanger 5 and the third heat exchanger 7 to store heat, and the heat storage tank 6 provides domestic hot water for surrounding buildings.
The invention also comprises a water pump assembly which comprises a third water pump and a seventh water pump, wherein the third water pump is arranged between the cold accumulation tank 1 and the data center air conditioning system 8 to convey the cold energy in the cold accumulation tank 1 to the data center air conditioning system 8, and the seventh water pump is arranged between the data center air conditioning system 8 and the cold accumulation tank 1 to recycle the water to the cold accumulation tank 1.
The water pump assembly further comprises a first water pump which is arranged between the cold storage tank 1 and the peripheral office space so as to convey the cold in the cold storage tank 1 to the peripheral office space. When the first water pump outputs the cold water in the cold storage tank 1, another pipeline recovers the cold water to the cold storage tank 1, so as to realize the recycling of the water source, which is not shown in the figure.
The invention also comprises a distribution unit which is respectively connected with the first water pump and the third water pump so as to adjust the flow ratio of the first water pump and the third water pump. When the actual refrigeration requirement of the data center air conditioning system 8 is met, a part of cold energy can be conveyed to peripheral small office places through the first water pump.
A heating system is arranged in the heat storage tank 6, and when the temperature of hot water in the heat storage tank 6 does not reach the preset temperature, the hot water in the cold storage tank 1 is heated for the second time through the heating system, so that domestic hot water with a proper temperature is provided for surrounding buildings. When the hot water in the heat storage tank 6 is delivered out, a new water source may be newly added to the heat storage tank 6.
The water pump assembly comprises a sixth water pump, the sixth water pump is arranged between the heat storage tank 6 and the second heat exchanger 5 to pump water in the heat storage tank 6 into the second heat exchanger 5 for heat exchange, the second heat exchanger 5 conveys heat of the second heat exchanger to the heat storage tank 6, and therefore the heat storage tank 6 can obtain the heat released by the standby refrigerating unit.
The invention discloses a regulation and control method of a data center cold and heat accumulation comprehensive energy-saving system, which is based on the data center cold and heat accumulation comprehensive energy-saving system and comprises the following steps:
1. in the night off-peak electricity period, the standby refrigerating unit starts a refrigerating cycle, the cold accumulation tank 1 accumulates cold, and the heat accumulation tank 6 accumulates heat;
2. during the daytime peak electricity period, the cold storage tank 1 preferentially releases cold to supply cold to the data center air conditioning system 8, and the insufficient part is supplemented by a host of the data center air conditioning system 8;
3. in the daytime electricity balance period, on the premise that the cold accumulation tank 1 meets the total cold load requirement in the daytime peak electricity period, the rest cold can be released to supply cold to the data center air conditioning system 8, and the insufficient cold is supplemented by the host of the data center air conditioning system 8; in the daytime electricity balance period, when the cold accumulation tank 1 meets the cold supply requirement of the data center air conditioning system 8, the residual cold of the cold accumulation tank 1 is conveyed to peripheral office places.
4. The heat storage tank 6 provides domestic hot water for surrounding buildings; when the temperature in the heat storage tank 6 does not reach the standard of domestic hot water, an electric heating system arranged in the heat storage tank 6 heats the water in the heat storage tank 6.
The technical solution of the present invention is further explained and explained with reference to the specific embodiments.
Fig. 1 is a schematic structural diagram of a cold and heat accumulation comprehensive energy-saving system of a data center. The data center cold and heat accumulation comprehensive energy-saving system comprises a cold accumulation tank 1, a first heat exchanger 2, a compressor 3, an expansion valve 4, a second heat exchanger 5, a heat accumulation tank 6, a third heat exchanger 7 and a data center air conditioning system 8. Besides, the data center cold and heat accumulation comprehensive energy-saving system is also provided with a water pump assembly, and the water pump assembly comprises a first water pump K1, a second water pump K2, a third water pump K3, a fourth water pump K4, a fifth water pump K5, a sixth water pump K6, a seventh water pump K7 and an eighth water pump K8. The first water pump K1 is connected to a first output of the cold storage tank 1 and can pump out the cold water in the cold storage tank 1. Connect through second water pump K2 between cold storage tank 1 and the first heat exchanger 2, in second water pump K2 can be with the liquid pump to the first heat exchanger 2 in the cold storage tank 1, the first output and the cold storage tank 1 of first heat exchanger 2 are connected. In addition, the input end of the compressor 3 is connected with the second output end of the first heat exchanger 2, the output end of the compressor 3 is connected with the first input end of the second heat exchanger 5, the first output end of the second heat exchanger 5 is connected with the expansion valve 4, and the output end of the expansion valve 4 is connected with the second input end of the first heat exchanger 2. The heat storage tank 6 is connected with the second heat exchanger 5 through a sixth water pump K6 to pump the liquid in the heat storage tank 6 into the second heat exchanger 5, and one output end of the second heat exchanger 5 is connected with the heat storage tank 6 to realize liquid backflow. The second output end of the heat storage tank 6 is connected with the first input end of the third heat exchanger 7 through a fifth water pump K5, and the first output end of the third heat exchanger 7 is connected with the heat storage tank 6. A fourth water pump K4 is also provided at the third output end of the heat storage tank 6. And the data center air conditioning system 8 is connected with the second input end of the third heat exchanger 7 through an eighth water pump K8, and the second output end of the third heat exchanger 7 is connected with the data center air conditioning system 8. In addition, the data center air conditioning system 8 is connected with the cold storage tank 1 through a seventh water pump K7, and a second output end of the cold storage tank 1 is connected with the data center air conditioning system 8 through a third water pump K3.
The standby refrigerating unit is started at night, namely the refrigerating cycle 2 → 3 → 5 → 4 → 2, the second water pump K2 is started, the cold storage circulation system 1 → 2 → 1 is started, and at the moment, the cold storage tank 1 stores cold energy. The standby refrigerating unit and the cold accumulation circulation are closed in the daytime, the third water pump K3 is opened, cold energy of the cold accumulation tank 1 is mainly supplied to the data center for refrigeration of IT equipment, the first water pump K1 can also be opened to convey part of cold energy to peripheral small office places to meet the refrigeration requirement of the peripheral small office places, and the specific share, namely the flow ratio of the first water pump K1 to the third water pump K3, needs to be determined on the basis of meeting the actual refrigeration requirement of the data center. 5 → 6 → 5 is a heat storage circulation system, and the heat released from the second heat exchanger 5 of the backup refrigerating unit can be fully utilized by turning on the sixth water pump K6. The second heat exchanger 5 may be a condenser. 6 → 7 → 6 is the data center waste heat utilization system, can extract the water side waste heat of data center air conditioning system 8 through opening fifth water pump K5, considers heat exchange efficiency, can open in the period that the heat accumulation system starts the initial stage temperature of water is lower, if the temperature can not reach life hot water standard, can open the electric heating system of heat accumulation jar 6 self-carrying. In the daytime, the hot water in the heat storage tank 6 is output to the surrounding buildings through the fourth water pump K4 to provide a proper amount of domestic hot water.
The operation strategy should consider the peak valley period of power consumption of the place where the construction project is located, cool and heat storage are carried out at the off-peak period of power consumption at night, the refrigerating unit is closed at the peak period of power consumption at daytime, the cold storage tank 1 releases cold to provide cold load for the tail end, the power consumption pressure at the peak period is reduced, and meanwhile, a proper amount of domestic hot water can be provided for surrounding buildings.
The cold and heat storage comprehensive energy-saving system is characterized in that cold and heat generated by the standby refrigerating unit of the data center during the night power load valley period are stored, the cold and heat are released the next day, and the production and the use of the cold and heat are separated by using the energy storage equipment, so that the purpose of saving energy is achieved.
The cold and heat storage technology can play the following three roles in a data center scene: firstly, peak load shifting is carried out, the electricity price difference between the peak load and the valley load is utilized, the standby host is started to cool the cold storage equipment and store heat for the heat storage equipment at the electricity price off-peak time at night, and the standby host is released at the electricity price on-peak time in the daytime to provide proper domestic hot water, so that the problem of insufficient cold supply can be avoided, and the operating cost of the air conditioning system is saved; the cold accumulation device can be used as an emergency cold source, and can form a quenching system with a secondary circulating pump, a circulating water pipeline and a tail end air conditioner to supply cold for the data machine room after the refrigerating unit is shut down when power is lost; and thirdly, the regulation and storage function is realized, for a newly-built data center, the load at the tail end in the initial operation stage is smaller, the refrigeration host can be started to operate at full load, cold is supplied while cold is charged to the cold storage equipment, and redundant cold energy can be supplied to peripheral buildings for use.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The utility model provides a data center cold-storage heat accumulation synthesizes economizer system which characterized in that includes:
a data center air conditioning system for regulating a temperature of a data center;
a backup refrigerating unit capable of realizing a refrigeration cycle and generating a cold amount;
the heat exchange assembly comprises a first heat exchanger, a second heat exchanger and a third heat exchanger, the first heat exchanger is connected with the standby refrigerating unit to obtain the cold energy of the refrigeration cycle, the second heat exchanger is connected with the standby refrigerating unit to obtain the heat released by the refrigerating unit, and the third heat exchanger is connected with the data center air conditioning system to obtain the waste heat generated by the data center air conditioning system;
the cold storage tank is connected with the first heat exchanger to store cold energy, and the cold energy stored in the cold storage tank supplies cold for the data center air conditioning system;
and the heat storage tank is respectively connected with the second heat exchanger and the third heat exchanger to store heat, and provides domestic hot water for surrounding buildings.
2. The data center cold and heat accumulation comprehensive energy saving system according to claim 1, further comprising a water pump assembly, wherein the water pump assembly comprises a third water pump and a seventh water pump, the third water pump is arranged between the cold accumulation tank and the data center air conditioning system to convey the cold in the cold accumulation tank to the data center air conditioning system, and the seventh water pump is arranged between the data center air conditioning system and the cold accumulation tank to recycle the water to the cold accumulation tank.
3. The data center cold and heat accumulation comprehensive energy-saving system according to claim 2, wherein the water pump assembly further comprises a first water pump disposed between the cold accumulation tank and the peripheral office space to deliver the cold in the cold accumulation tank to the peripheral office space.
4. The data center cold and heat accumulation comprehensive energy-saving system as claimed in claim 3, further comprising a distribution unit connected with the first water pump and the third water pump respectively to adjust the flow ratio of the first water pump and the third water pump.
5. The data center cold and heat accumulation comprehensive energy-saving system according to claim 1, wherein a heating system is arranged in the heat accumulation tank.
6. The data center cold and heat accumulation comprehensive energy-saving system according to claim 1, further comprising a water pump assembly, wherein the water pump assembly comprises a sixth water pump, the sixth water pump is arranged between the heat accumulation tank and the second heat exchanger to pump the water in the heat accumulation tank into the second heat exchanger for heat exchange, and the second heat exchanger delivers the heat thereof to the heat accumulation tank.
7. A regulation and control method of a data center cold and heat accumulation comprehensive energy-saving system is based on any one of claims 1 to 6, and is characterized by comprising the following steps:
in the night off-peak electricity period, the standby refrigerating unit starts a refrigerating cycle, the cold accumulation tank accumulates cold, and the heat accumulation tank accumulates heat;
during daytime peak electricity hours, the cold storage tank preferentially releases cold to supply cold to the data center air conditioning system, and the shortage part is supplemented by the host of the data center air conditioning system.
8. The method for regulating and controlling according to claim 7, further comprising:
in the daytime when electricity is balanced, the cold accumulation tank can release the residual cold to supply cold to the data center air conditioning system on the premise of meeting the total cold load demand in the daytime when electricity is at a peak, and the insufficient cold is supplemented by the host of the data center air conditioning system.
9. The control method according to claim 8, wherein in the daytime when the level electricity is in the daytime, when the cold accumulation tank meets the cold supply requirement of the data center air conditioning system, the residual cold of the cold accumulation tank is delivered to peripheral office places.
10. The conditioning method according to claim 7, wherein the heat storage tank supplies domestic hot water to surrounding buildings; when the temperature in the heat storage tank does not reach the standard of domestic hot water, an electric heating system arranged in the heat storage tank heats the water in the heat storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111400641.2A CN114071973A (en) | 2021-11-24 | 2021-11-24 | Data center cold and heat accumulation comprehensive energy-saving system and regulation and control method thereof |
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| CN202111400641.2A CN114071973A (en) | 2021-11-24 | 2021-11-24 | Data center cold and heat accumulation comprehensive energy-saving system and regulation and control method thereof |
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| CN114071973A true CN114071973A (en) | 2022-02-18 |
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| CN116817380A (en) * | 2023-07-12 | 2023-09-29 | 深圳市前海能源科技发展有限公司 | Regional cold source storage and charge storage coupling energy storage system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116817380A (en) * | 2023-07-12 | 2023-09-29 | 深圳市前海能源科技发展有限公司 | Regional cold source storage and charge storage coupling energy storage system |
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