CN113432215B - Triple co-generation system of data center machine room and control method of distributed heat dissipation system - Google Patents
Triple co-generation system of data center machine room and control method of distributed heat dissipation system Download PDFInfo
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- CN113432215B CN113432215B CN202110616526.2A CN202110616526A CN113432215B CN 113432215 B CN113432215 B CN 113432215B CN 202110616526 A CN202110616526 A CN 202110616526A CN 113432215 B CN113432215 B CN 113432215B
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 33
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 20
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003546 flue gas Substances 0.000 claims description 18
- 238000005057 refrigeration Methods 0.000 claims description 10
- 238000010248 power generation Methods 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 206010015856 Extrasystoles Diseases 0.000 claims 4
- 239000003507 refrigerant Substances 0.000 claims 4
- 238000000605 extraction Methods 0.000 claims 2
- 238000005265 energy consumption Methods 0.000 abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- F24F5/0014—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 absorption or desorption
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
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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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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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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]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
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- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a triple co-generation system of a data center machine room and a control method of a distributed heat dissipation system, which comprises the following steps: in the triple supply system, a lithium bromide refrigerator supplies cold to a machine room in a form of cold water through a cold energy pipeline, and the cold energy pipeline directly sends air-cooled cold energy to a heat dissipation air duct of the machine room equipment to cool the machine room equipment; the heat discharged into the machine room environment by the equipment is discharged to the outside by the exhaust fan, so that the key high-energy-consumption chips in the equipment can be cooled by effectively utilizing the air cooling energy; the refrigerating capacity and the electricity consumption of the novel heat dissipation system of the data center are calculated through theory, so that the demand proportion of the actual data center on the cold energy and the electric energy is met, the cold power proportion and the electric power proportion output by the triple power supply system are adjusted, and the constrained running parameters of the refrigerating machine ensure that the triple power supply system stably and efficiently supplies the electric energy and the cold energy for the data center. The method ensures the unidirectional circulation of the heating value, obviously reduces the loss of cold energy in the machine room, and improves the heat dissipation efficiency of the machine room.
Description
Technical Field
The invention belongs to the technical field of energy optimization, and particularly relates to a triple co-generation system of a data center machine room and a control method of a distributed heat dissipation system.
Background
The combined cooling, heating and power system can provide three forms of energy of cooling, heating and power for users at the same time, and through cascade utilization of energy sources, the utilization rate of primary energy sources is improved, emission of polluted gas is reduced, and attention and application in the world are obtained.
In a conventional data center machine room, equipment such as a high-performance machine room or a router can generate a large amount of heat, and equipment overheating not only affects the service life and reliability of the equipment, but also has potential fire safety risks; the cooling means generally adopted are that an electric air conditioner or a refrigerating fan is used for continuously conveying cold energy to the machine room, so that the environmental temperature of the machine room is prevented from being further increased due to equipment heat energy, the working temperature of an internal chip of the machine room is further caused to exceed the junction temperature of the chip, and the equipment is down or has serious consequences; the traditional refrigeration method for the whole environment of the machine room has the phenomenon of natural dissipation of cold energy, namely the room temperature of the machine room environment is obviously higher than the outlet temperature of an air conditioner; the existing machine room or router basically adopts an air-cooled heat dissipation scheme, namely, a fan is used for exhausting or blowing air to take away equipment heat; the data center machine room is a high energy consumption area, and the energy consumed by machine room refrigeration is about 1/3 of the total energy consumption of the machine room; the traditional machine room heat dissipation scheme wastes a large amount of cold energy, and has important practical significance in combination with the current machine room construction difficulty and the technical evolution process of equipment such as the machine room and the like under the age background of 'carbon neutralization' of the national call.
Disclosure of Invention
The invention aims to: in order to solve the problems, the invention provides a triple supply system of a data center machine room and a control method of a distributed heat dissipation system, wherein a refrigerating fan in the machine room inputs cold energy of coolant water into a cold energy pipeline, the cold energy pipeline directly sends air-cooled cold energy into a heat dissipation air duct of a large-scale machine room or a core router, the air-cooled cold energy is effectively utilized to directly cool key high-energy consumption chips in equipment, the utilization rate of the cold energy is improved, the dissipation of the air-cooled cold energy in the machine room environment is reduced, the heat dissipation energy consumption of the data center machine room is reduced, and the energy utilization economy of the data center is improved.
The technical scheme is as follows: in order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the triple supply system comprises a gas turbine, wherein the gas turbine is respectively connected with a city natural gas pipeline and a flue gas splitter, the flue gas splitter comprises a flue gas pipeline A and a flue gas pipeline B, the flue gas pipeline A is connected with a waste heat boiler, the waste heat boiler is connected with a steam turbine through a high-temperature steam pipeline, and the steam turbine is connected with a second generator; the flue gas pipeline B is connected with the steam-water heat exchanger; the steam turbine is connected with the second generator and then is connected with the second alternating current bus, the gas turbine is connected with the first generator and then is connected with the second alternating current bus, the second alternating current bus is respectively connected with the data center and the utility grid, the second alternating current bus is connected with the first alternating current bus through the grid-connected switch, and the first alternating current bus is respectively connected with the electric automobile power exchange station and the utility grid.
The steam-water heat exchanger is connected with the lithium bromide refrigerator and the auxiliary building through a heat energy pipeline; the lithium bromide refrigerator is used for cooling the data center in a form of cold water through a cold energy pipeline.
The refrigerating fan in the data center machine room inputs cold energy of coolant water into the air cooling pipeline, the air cooling pipeline directly sends the air cooling energy into the radiating air duct of the large-scale machine room or the core router, the key high-energy consumption chip in the equipment is cooled by effectively utilizing the air cooling cold energy, the utilization rate of the cold energy is improved, and the dissipation of the air cooling cold energy in the machine room environment is reduced;
in the aspect of machine room design, the air-cooled pipeline is only required to be distributed in the machine room with the common refrigeration equipment of the machine room. In the aspect of equipment design of a machine room, equipment heat dissipation air channels are required to be redesigned, the air quantity of a radiator is required to come from all air cooling pipelines of the machine room, the equipment is required to have tightness except the air channels, and standardized butt joint is required to be realized between the equipment and an air cooling pipeline interface of the machine room. The method specifically comprises the following steps:
step 1, calculating the total air quantity required by a data center machine room during heat dissipation, and further obtaining the total air quantity supplied by a triple supply system to data center machine room equipment; the lithium bromide refrigerator in the triple supply system is controlled to supply cold to the data center machine room in a form of cold water through a cold energy pipeline, and the cold energy pipeline directly sends the air-cooled cold energy to a heat dissipation air duct of the machine room equipment to cool the machine room equipment; simultaneously, the exhaust fan of the machine room equipment is utilized to exhaust the heat generated by the machine room equipment;
step 2, calculating the heating value and the heat removal amount of a single device in a data center machine room per minute to obtain the refrigerating capacity required by the data center machine room, and further obtaining the cold energy output power of the triple co-generation system;
step 3, obtaining the electric energy output power of the triple supply system through the electric power of the gas turbine and the electric power of the steam turbine;
step 4, calculating the cold-electricity ratio of the triple co-generation system through the cold energy output power and the electric energy output power of the triple co-generation system; the proportion of the high-temperature flue gas output by the flue gas diverter pipeline in the triple co-generation system to the total amount of the high-temperature flue gas is regulated, so that the cold-electricity ratio of the triple co-generation system is consistent with the cold-electricity ratio of a data center machine room;
and 5, calculating the electricity consumption requirement of all equipment in the data center machine room to obtain the generated energy of the triple co-generation system, and further determining the gas combustion quantity required by the gas turbine in the triple co-generation system.
Further, in the step 1, the total air volume required by the data center room in heat dissipation is calculated, so as to obtain the total air volume supplied by the triple supply system to the data center room equipment, and the method specifically comprises the following steps:
under the normal temperature state, the rotating speed of the cooling fan of the machine room equipment is fixed, the total air quantity required by the heat dissipation of the data center machine room equipment is calculated, and the total air quantity supplied to the data center machine room equipment by the triple supply system is further obtained, so that the expression V is satisfied p ＝V d The method comprises the steps of carrying out a first treatment on the surface of the Wherein V is p The unit CMM is used for representing the air quantity supplied by the cold energy pipeline to the heat dissipation air duct of the machine room equipment; v (V) d The total air quantity required by the machine room equipment in heat dissipation is represented, and the unit is CMM.
Further, the method of the step 2 specifically comprises the following steps:
step 2.1, according to the nominal rated power of the data center machine room equipment, the nominal rated power is used as the heating power of the single equipment, and the heating value of the single equipment of the data center machine room per minute is calculated and obtained:
Q i ＝P r
in which Q i Representing single machine room of data centerThe heating value per minute of the equipment is J/min; p (P) r The nominal rated power of the data center machine room equipment is represented, and the unit is J/min;
step 2.2, according to the temperature T of the heat radiation air inlet of the data center machine room equipment 1 Air outlet temperature T 2 And calculating the heat removal amount per minute when a single device in the data center machine room dissipates heat:
Q p ＝C air ρV p (T 2 -T 1 )
in which Q p The heat dissipation of a single device in a data center machine room is shown, and the unit is J/min; c (C) air Represents the specific heat capacity of air under normal temperature, C air =1000J/Kg ℃; ρ represents the density of air at normal temperature, ρ=1.29 Kg/m 3 ；V p The air quantity supplied by the cold energy pipeline to the heat dissipation air duct of the machine room equipment is represented; t (T) 1 The temperature of a heat dissipation air inlet of the machine room is represented; t (T) 2 The temperature of a heat dissipation air outlet of the machine room is represented;
step 2.3, calculating the refrigerating capacity required by the single equipment of the data center machine room per minute through the heating capacity and the heat removal capacity of the single equipment of the data center machine room per minute:
Q c ＝Q i -Q p
in omega c The refrigerating capacity required by each minute of a single device of a data center machine room is represented by a unit J/min;
step 2.4, assuming that the number of the equipment in the data center machine room is n, and obtaining the cold energy output power of the triple supply system by calculating the refrigerating capacity required by all the equipment in the data center machine room per minute:
Q AC ＝1.2n*Q c
in which Q AC And the cold energy output power of the triple co-generation system is expressed as J/min.
Further, the formula for obtaining the electric energy output power of the triple co-generation system in the step 3 is as follows:
P T ＝P GT +P y
wherein P is T Representing the electric energy output power of the triple co-generation system; p (P) GT Representing the power generated by the gas turbine; p (P) y Represents the power generated by the steam turbine.
Further, in step 4, the cold energy output power and the electric energy output power of the triple co-generation system are used for calculating the cold-electricity ratio of the triple co-generation system, and the calculation formula is as follows:
wherein K is E The cold-electricity ratio of the cold energy output power and the electric energy output power of the triple co-generation system is represented; q (Q) AC The cold energy output power of the triple co-generation system is expressed as J/min; p (P) T Representing the electric energy output power of the triple co-generation system; p (P) GT Representing the power generated by the gas turbine; p (P) y Representing the power generated by the steam turbine;
because the cold-electricity ratio of the triple co-generation system is matched with the cold-electricity ratio of the data center, the cold power and the electric power output by the triple co-generation system can meet the requirements of the data center;
further, the machine room needs to discharge the heat quantity of the machine room to the outside through the exhaust fan, so that the heat of the whole machine room equipment is timely transferred to the outside, the heat quantity unidirectional circulation is guaranteed to the machine room heat dissipation system, the condition of mixing cold and hot air flows in the traditional machine room heat dissipation mode is reduced, and meanwhile the loss of cold energy in the machine room is remarkably reduced.
The beneficial effects are that: compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:
compared with the prior art, the triple supply system of the data center machine room and the control method of the distributed heat dissipation system conduct the air-cooled cold energy into the air duct of the machine room equipment, improve the utilization rate of the cold energy and reduce the dissipation of the air-cooled cold energy in the machine room environment; the problems of natural dissipation of cold energy and low cold energy utilization rate existing in the conventional machine room refrigerating and cooling process are solved.
Drawings
FIG. 1 is a schematic block diagram of a triple co-generation system of a data center under one embodiment;
fig. 2 is a schematic block diagram of a distributed heat dissipation system for a data center room in one embodiment.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
The invention relates to a triple co-generation system of a data center machine room and a control method of a distributed heat dissipation system, which specifically comprise the following steps:
s1, on the premise that the normal temperature is 25 ℃ and the rotating speed of a cooling fan of equipment is 50%, according to a thermal simulation cloud image of the equipment, the equipment is determined to keep good cooling performance under normal temperature working conditions, and meanwhile, the total air volume V required by the equipment is calculated when the rotating speed of the cooling fan of the equipment is 50% d (CMM)；
S2, the design of the equipment has tightness except the air duct, so that the heat dissipation of the equipment is ensured to be normal, and the air cooling pipeline of the machine room supplies air quantity V to the air duct of the equipment p (CMM) V should be satisfied d ＝V p ；
S3, calculating heat Q to be discharged for heat dissipation of single equipment p (J/min); the temperature of the heat radiation air inlet of the equipment is T 1 =25deg.C, air outlet temperature of T 2 The specific heat capacity of the air changes due to the change of temperature (related to the heat dissipation condition of different equipment), but the specific heat capacity of the air does not change obviously under the normal temperature condition, C air 1000J/Kg ℃; the density of the air also changes along with the temperature change, but the density of the air also does not obviously change under the normal temperature condition, and ρ is about 1.29Kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The heat dissipation per minute of a single device can be calculated by combining the step s2, and the heat is required to be discharged: q (Q) p ＝C air ρV p (T 2 -T 1 )；
S4, calculating heating power P of single equipment w (w/h) calorific value Q i (J/min); the heat energy generated in the equipment mainly comes from key chips (such as CPU, GPU, PCIE bridge chips and the like), and the power consumption of the chips is almost 100 percent converted into heat according to the characteristics of semiconductor components; the power consumption of the device is composed of the power consumption of the internal electronic components, if the power consumption of the heat dissipation DC fan is countedAt nominal rated power consumption P of the device r (w/h) can be understood as the total heating power P of the device w (w/h) (the power consumption of the DC fan can be calculated as redundancy of heating power); then the heating value Q per minute of the single device i ＝P r (J/min)；
S5, calculating the refrigerating capacity Q required by a single device c (J/min); obtaining the heating value Q of the single equipment from the step S4 i (J/min), obtaining heat Q required to be discharged for heat dissipation of single equipment in step S3 p (J/min), the refrigerating capacity Q required by a single device can be calculated c ＝Q i -Q p The method comprises the steps of carrying out a first treatment on the surface of the Refrigerating capacity Q c Is absorbed in the process of air cooling and heat dissipation of the equipment;
s6, total cold energy demand Q of computer room sum The cold energy output power of the lithium bromide refrigerator is Q AC The method comprises the steps of carrying out a first treatment on the surface of the Assume that the machine room has n identical devices, Q sum ＝n*Q c The method comprises the steps of carrying out a first treatment on the surface of the Considering redundancy of cold energy supply, Q AC ＝1.2n*Q c ；
S7, a control method for the co-supply of cold energy and electric energy by the triple co-generation system;
the power generation P of the gas turbine GT And the power generation P of the steam turbine y Form the total power generation amount P of the electric energy output and triple co-generation system T Expressed as:
P T ＝P GT +P y ；
the cold energy output power of the lithium bromide refrigerator is Q AC The cold-to-electricity ratio of the triple co-generation system can be expressed as
Wherein K is E For the cold-electricity ratio of the output cold power and the electric power of the triple co-generation system, P T Is the total power generation quantity Q of the triple power supply system AC The cold energy output power of the lithium bromide refrigerator; alpha is the cold-to-electricity ratio K E The unique variable can control the cold-electricity ratio of the triple co-generation system by statically adjusting alpha.
And S8, simultaneously, the whole electricity consumption of the machine room is supplied by the triple co-generation system, and the electric energy requirement of the machine room is stable, namely the total electricity generation capacity of the triple co-generation system is also easy to obtain. Under the condition of alpha determination, the gas combustion quantity required by the gas turbine can be determined according to the total power consumption of the data center machine room; because the cooling-electricity ratio of the triple co-generation system is matched with the cooling-electricity ratio of the data center machine room, the cooling power and the electric power output by the triple co-generation system can meet the requirements of the data center;
and S9, finally, the machine room needs to discharge the heat of the equipment through the exhaust fan, so that the heat of the whole machine room equipment is timely transferred to the outside, the heat dissipation system of the machine room ensures unidirectional circulation of the heat, the mixing condition of cold and hot air flows in the traditional heat dissipation mode of the machine room is reduced, and meanwhile, the loss of cold energy in the machine room is obviously reduced.
Further, referring to fig. 1, the triple co-generation system comprises a gas turbine, the gas turbine is respectively connected with a city natural gas pipeline and a flue gas splitter, the flue gas splitter comprises a flue gas pipeline a and a flue gas pipeline B, the flue gas pipeline a is connected with a waste heat boiler, the waste heat boiler is connected with a steam turbine through a high-temperature steam pipeline, and the steam turbine is connected with a second generator; the flue gas pipeline B is connected with the steam-water heat exchanger; the steam turbine is connected with the second generator and then is connected with the second alternating current bus, the gas turbine is connected with the first generator and then is connected with the second alternating current bus, the second alternating current bus is respectively connected with the data center and the utility grid, the second alternating current bus is connected with the first alternating current bus through the grid-connected switch, and the first alternating current bus is respectively connected with the electric automobile power exchange station and the utility grid.
Further, the steam-water heat exchanger is connected with the lithium bromide refrigerator and the auxiliary building through a heat energy pipeline; the lithium bromide refrigerator is used for cooling the data center in a form of cold water through a cold energy pipeline.
Further, the refrigerating fan in the data center machine room inputs cold energy of coolant water into the air cooling pipeline, the air cooling pipeline directly sends the air cooling energy into the heat dissipation air duct of the large-scale equipment or the core router, key high-energy consumption chips in the equipment are cooled by effectively utilizing the air cooling cold energy, the utilization rate of the cold energy is improved, and the dissipation of the air cooling cold energy in the machine room environment is reduced;
further, referring to fig. 2, in terms of the design of the machine room, the air-cooled pipeline is only required to be distributed in the machine room, and the air-cooled pipeline is shared with the machine room. In the aspect of equipment design, equipment heat dissipation air duct needs to be redesigned, the air quantity of the radiator should come from the air cooling pipeline of the machine room entirely, and equipment has tightness except the air duct, and meanwhile, the standardized butt joint is to be realized with the air cooling pipeline interface of the machine room.
Further, in the aspect of reducing the economy of refrigeration energy consumption, the scheme solves the problems of natural dissipation of cold energy and low utilization rate of the cold energy existing in the conventional refrigeration and cooling process of the machine room; in a conventional data center machine room, the refrigeration equipment has the function of eliminating a large amount of heat energy generated by equipment in the machine room environment through refrigeration, so that the equipment heat energy is prevented from causing the temperature of the machine room environment to be further increased, and the temperature of an internal chip of the equipment is further caused to exceed the junction temperature of the chip; the phenomenon of natural dissipation of cold energy exists in the refrigeration of the whole environment of the machine room;
further, the heat dissipation system of the present invention has the ability to further reduce the conventional operating temperature of the chips inside the device; the working temperature of the general semiconductor chip is between-20 ℃ and 120 ℃, the normal operation temperature is 80 ℃, the service life and the reliability of the semiconductor chip can be rapidly reduced along with the further increase of the working temperature, and the semiconductor chip does not use equipment to stably operate. It is important that the excellent heat dissipation system allows the operating temperature of the chip to be as close as possible to conventional room temperature.
Claims (6)
1. The utility model provides a control method of trigeminy supplies system and distributed cooling system of data center computer lab, characterized by that, the calorific capacity of analysis computer lab equipment, heat extraction volume and the required amount of wind when heat extraction, the proportion of adjusting trigeminy and supplying system output cold power and output electric power makes the trigeminy supply system supply electric energy and cold energy for the computer lab, controls the lithium bromide refrigerator in the trigeminy supplies system and supplies cold to the computer lab through cold energy pipeline in the form of coolant water, specifically includes the following steps:
step 1, the total air quantity required by a computer room in heat dissipation is obtained, and then the total air quantity supplied to the computer room equipment by a triple supply system is obtained; the refrigerant water of the lithium bromide refrigerator enters a refrigerating fan in the machine room through an evaporator, the refrigerating fan inputs cold energy of the refrigerant water into a cold energy pipeline, and meanwhile, the refrigerating fan transmits the refrigerant water to the evaporator through a refrigerant water pump and a throttle valve; the cold energy pipeline directly sends the air-cooled cold energy to a heat dissipation air duct of the machine room equipment to cool the machine room equipment; simultaneously, the exhaust fan of the machine room equipment is utilized to exhaust the heat generated by the machine room equipment;
step 2, obtaining the refrigerating capacity required by the machine room through the heating value and the heat removal amount of a single machine in the computer room per minute, and further obtaining the cold energy output power of the triple co-generation system;
step 3, obtaining the electric energy output power of the triple co-generation system by the power generation power of the gas turbine and the power generation power of the steam turbine in the triple co-generation system;
step 4, calculating the cold-electricity ratio of the triple co-generation system through the cold energy output power and the electric energy output power of the triple co-generation system; the proportion of the high-temperature flue gas output by the flue gas diverter pipeline in the triple co-generation system to the total amount of the high-temperature flue gas is regulated, so that the cold-electricity ratio of the triple co-generation system is consistent with the cold-electricity ratio of a machine room;
and 5, obtaining the generated energy of the triple co-generation system through the electricity consumption requirements of all equipment of the computer room, and further determining the gas combustion quantity required by the gas turbine in the triple co-generation system.
2. The control method of a triple co-generation system and a distributed heat dissipation system of a data center machine room according to claim 1, wherein the total air volume required by the computer room in the step 1 in heat dissipation is further obtained, and the method specifically comprises the following steps:
when the rotating speed of the cooling fan of the machine room equipment is fixed in a normal temperature state, the total air quantity required by the heat dissipation of the machine room equipment is calculated, so that the total air quantity supplied to the machine room equipment by the triple supply system is obtained, and the expression V is satisfied p ＝V d The method comprises the steps of carrying out a first treatment on the surface of the Wherein V is p Equipment for indicating cold energy pipeline to machine roomThe total air quantity supplied by the radiating air duct is in unit of CMM; v (V) d The total air quantity required by the machine room equipment in heat dissipation is represented, and the unit is CMM.
3. The triple co-generation system of a data center machine room and the control method of the distributed heat dissipation system according to claim 1, wherein the method of the step 2 is specifically as follows:
step 2.1, calculating and obtaining the heating value of each minute of the single equipment of the machine room by taking the nominal rated power of the single equipment of the machine room as the heating power of the single equipment:
Q i ＝P r
in which Q i The heat productivity per minute of a single device in a machine room is represented by the unit J/min; p (P) r The nominal rated power of a single device in a machine room is expressed as J/min;
step 2.2, according to the temperature T of the heat radiation air inlet of the single equipment in the machine room 1 Air outlet temperature T 2 Heat rejection per minute when a single device in the computer room dissipates heat:
Q p ＝C air ρV p (T 2 -T 1 )
in which Q p The heat rejection per minute is expressed when a single device in the machine room dissipates heat, and the unit is J/min; c (C) air Represents the specific heat capacity of air under normal temperature, C air =1000J/Kg ℃; ρ represents the density of air at normal temperature, ρ=1.29 Kg/m 3 ；V p The total air quantity supplied by the cooling energy pipeline to the cooling air duct of the machine room equipment is represented; t (T) 1 The temperature of a heat dissipation air inlet of the machine room is represented; t (T) 2 The temperature of a heat dissipation air outlet of the machine room is represented;
step 2.3, through the heating value and the heat rejection amount of the single equipment in the machine room per minute, the refrigerating output required by the single equipment in the machine room per minute is calculated:
Q c ＝Q i -Q p
in which Q c The refrigerating capacity required by a single device of a machine room per minute is represented by the unit J/min;
step 2.4, assuming that the number of the equipment in the machine room is n, obtaining the cold energy output power of the triple supply system through the refrigerating capacity required by all the equipment in the computer room per minute:
Q AC ＝1.2n*Q c
in which Q AC And the cold energy output power of the triple co-generation system is expressed as J/min.
4. The control method of a triple co-generation system and a distributed heat dissipation system of a data center room according to claim 1, wherein the formula of the electric energy output power of the triple co-generation system in step 3 is as follows:
P T ＝P GT +P y
wherein P is T Representing the electric energy output power of the triple co-generation system; p (P) GT Representing the power generated by the gas turbine; p (P) y Represents the power generated by the steam turbine.
5. The control method of the triple power supply system and the distributed heat dissipation system of the data center room according to claim 1, wherein in step 4, the cold energy output power and the electric energy output power of the triple power supply system are used for calculating the cold-electricity ratio of the triple power supply system, and the calculation formula is as follows:
wherein K is E The cold-electricity ratio of the cold energy output power and the electric energy output power of the triple co-generation system is represented; q (Q) AC The cold energy output power of the triple co-generation system is expressed as J/min; p (P) T Representing the electric energy output power of the triple co-generation system; p (P) GT Representing the power generated by the gas turbine; p (P) y Represents the power generated by the steam turbine.
6. The triple co-generation system of a data center machine room and the control method of the distributed heat dissipation system are characterized in that the triple co-generation system and the distributed heat dissipation system of the machine room share refrigeration equipment, a cold energy pipeline is arranged in the machine room, and all air quantity required by heat dissipation is from the cold energy pipeline of the machine room; the refrigeration device comprises a lithium bromide refrigerator and an electric refrigerator.
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