CN115355152B - A power peak regulation system and method based on supercritical CO2 integrated wind energy - Google Patents
A power peak regulation system and method based on supercritical CO2 integrated wind energy Download PDFInfo
- Publication number
- CN115355152B CN115355152B CN202210869787.XA CN202210869787A CN115355152B CN 115355152 B CN115355152 B CN 115355152B CN 202210869787 A CN202210869787 A CN 202210869787A CN 115355152 B CN115355152 B CN 115355152B
- Authority
- CN
- China
- Prior art keywords
- output port
- gas
- temperature
- microalgae
- enters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000033228 biological regulation Effects 0.000 title abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 88
- 230000006835 compression Effects 0.000 claims abstract description 86
- 238000003860 storage Methods 0.000 claims abstract description 50
- 238000003756 stirring Methods 0.000 claims abstract description 49
- 230000029553 photosynthesis Effects 0.000 claims abstract description 19
- 238000010672 photosynthesis Methods 0.000 claims abstract description 19
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 239000000376 reactant Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract 3
- 230000009471 action Effects 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 14
- 238000000605 extraction Methods 0.000 claims description 7
- 238000010248 power generation Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 91
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 238000004378 air conditioning Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 241000195649 Chlorella <Chlorellales> Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/24—Recirculation of gas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/26—Conditioning fluids entering or exiting the reaction vessel
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
- C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
- C12M41/20—Heat exchange systems, e.g. heat jackets or outer envelopes the heat transfer medium being a gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- 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
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
-
- 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
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/103—Carbon dioxide
-
- 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
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
-
- 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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/38—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/10—Combinations of wind motors with apparatus storing energy
- F03D9/17—Combinations of wind motors with apparatus storing energy storing energy in pressurised fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
-
- 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
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Zoology (AREA)
- Sustainable Development (AREA)
- Combustion & Propulsion (AREA)
- Genetics & Genomics (AREA)
- Biomedical Technology (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses an electric power peak regulation system and method based on supercritical CO 2 integrated wind energy utilization, and relates to the field of carbon emission reduction, comprising a CO 2 production system, a CO 2 compression system and a thermoelectric generation system. According to the invention, CO 2 generated by the breathing action of the microalgae at night is heated and stored to be used as a working medium for supercritical CO 2 power generation, and natural wind power is utilized to drive the stirring paddles of the microalgae culture tank and the piston of the gas compression unit respectively, so that wind energy is effectively utilized. Meanwhile, the recycling of substances is realized, O 2 generated by photosynthesis of microalgae in the daytime can be used for breathing at night, and CO 2 generated at night can be used as a reactant for photosynthesis in the daytime. Meanwhile, the exhaust steam at the turbine outlet is heated by using high-temperature and high-pressure CO 2 gas in the CO 2 storage tank, and the exhaust steam is subjected to secondary heating after heat exchange through the data center, so that heat is recovered for supplying heat, and heat loss is reduced.
Description
Technical Field
The invention relates to an electric power peak regulation system and method based on supercritical CO 2 integrated wind energy utilization, and belongs to the technical field of energy conservation, emission reduction and energy sources.
Background
At present, supercritical CO 2 power generation is a novel utilization technology for controlling CO 2 emission, and the supercritical CO 2 is used as a working medium to convert the energy of a heat source into mechanical energy. Because supercritical carbon dioxide has the characteristics of high energy density, high heat transfer efficiency and the like, a power generation system using the supercritical carbon dioxide as a working medium can reach the efficiency of 700 ℃ of a conventional steam Rankine cycle within the temperature range of 620 ℃, and is widely heated by researchers in various countries.
From the standpoint of adjusting the energy structure, new energy is increasingly occupying the social energy structure, and renewable energy, especially solar energy, is currently of particular interest. The development of solar energy utilization by humans has also been directed to photosynthesis of plants (e.g., microalgae) that can fix a large amount of carbon dioxide, such as the invention patent application number 201810204218.7 discloses a cogeneration utilizing microalgae photosynthesis. Compared with photosynthesis, respiration of plants (such as microalgae) generates a large amount of CO 2, and control of the emission of the CO 2 is of great significance to carbon emission reduction. And microalgae such as chlorella can be used for treating industrial wastewater and municipal sewage in addition to improving ecological environment. Wind is a natural phenomenon on earth, which is caused by solar radiant heat. The sun irradiates the earth surface, and the earth surface is heated differently everywhere to generate a temperature difference, thereby causing convection movement of the atmosphere to form wind. Wind energy is the kinetic energy of air, and the size of the wind energy depends on the wind speed and the density of the air. The renewable energy source solar energy and wind energy are utilized, and are research hotspots for domestic and foreign scholars.
In addition, with the rapid development of the electronic information industry, the development of data centers is gradually changed. Particularly, the data center industry is promoted by the great force of new capital construction, the data center industry is in the new development peak, and the data center needs to be cooled all the year round for maintaining constant indoor temperature while strengthening basic management at present, so that huge power consumption and electricity charge are brought. It is counted that the energy consumption of the refrigerating and air conditioning equipment in the data center room is about 40% of the total energy consumption, and the heat discharged from the data center is not effectively utilized, which also causes great waste. Heat dissipation from data centers using local environments is currently one method of concern.
In view of the above, the invention provides an electric power peak regulation system and method based on supercritical CO 2 integrated wind energy utilization, and belongs to the technical field of energy conservation and emission reduction and energy sources.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an electric power peak regulation system based on supercritical CO 2 integrated wind energy utilization, which not only can effectively utilize heat generated by a data center and CO 2 generated by microalgae respiration, but also can effectively utilize wind energy to compress CO 2, and can utilize high-temperature high-pressure CO 2 in multiple stages, thereby improving energy utilization efficiency.
The technical scheme adopted by the invention for solving the problems is that the power peak regulation system based on supercritical CO 2 integrated wind energy utilization is characterized by comprising a CO 2 production system, a CO 2 compression system and a thermoelectric generation system;
The CO 2 production system comprises a microalgae culture tank, an O 2 tank, a stirring paddle and a first connecting shaft, wherein the microalgae culture tank comprises a feed inlet, an O 2 input port, a CO 2 input port, The gas output port comprises three branches, namely an O 2 output port, a CO 2 first output port, The device comprises a CO 2 second output port, an O 2 tank, a CO 2 first output port, a CO 2 second output port, a CO 2 input port, an air inlet, a stirring paddle, a fan blade, a first connecting shaft and a second connecting shaft, wherein the O 2 input port is connected with the bottom of the microalgae culture tank, the inlet of the O 2 tank is connected with the O 2 output port of the microalgae culture tank, the CO 2 first output port of the microalgae culture tank is connected with the CO 2 compression system, the CO 2 second output port is connected with the CO 2 input port of the bottom of the microalgae culture tank, the air inlet is arranged at the bottom of the stirring paddle, the O 2 input port of the microalgae culture tank is connected with the air inlet at the bottom of the stirring paddle, the stirring paddle is composed of a plurality of stirring paddles, the stirring paddle is connected with the fan blade of the CO 2 compression system through the first connecting shaft, the fan blade rotates under the action of natural wind force, and the rotation of the stirring paddle is controlled through the first connecting shaft, so that the effect of stirring microalgae liquid is played, the CO 2 is more uniformly dispersed, and the microalgae can be fully contacted with the CO 2, And the whole quality of the microalgae liquid is improved.
The CO 2 compression system comprises fan blades, a main shaft, a gear box, a second connecting shaft, a low-temperature preheater, a gas compression unit, a medium-temperature preheater and a CO 2 storage tank, wherein the fan blades are connected with the gear box through the main shaft, the gear box is connected with a crank of the gas compression unit through the second connecting shaft, the gas compression unit consists of a crank, a piston, a connecting rod, a compression cavity, an air inlet valve and an air outlet valve, the crank is connected with the second connecting shaft, the cross section area of the output end of the second connecting shaft is consistent with that of the crank, the crank is connected with the piston through the connecting rod, the center line of the first connecting shaft and the main shaft are positioned on the same center line, the center line of the second connecting shaft is kept horizontal with the center line of the first connecting shaft and the main shaft, an inlet channel of the air inlet valve is connected with a CO 2 first output port of the microalgae culture tank through the low-temperature preheater, the air outlet valve of the gas compression unit is connected with the CO 2 storage tank through the medium-temperature preheater, the gas outlet of the CO 2 is divided into two branches, the first branches are connected with the gear box through the connecting shaft, and the high-temperature thermoelectric system drives the fan to rotate, and the fan is driven by the high-temperature thermoelectric system to rotate, and the fan is driven by the high-temperature turbine system to rotate, and the fan is connected with the main shaft through the high-temperature compressor, and the main shaft rotates.
The thermoelectric generation system comprises a turbine, a generator, an industrial user, a data center, a high-temperature heat regenerator, a low-temperature heat regenerator, a heat supply user and a precooler, wherein the turbine comprises two input ports and two output ports, the first input port is connected with a first branch of the CO 2 storage tank output port, the second input port is connected with the output port from the data center, the first output port is an industrial steam extraction outlet which is connected with the industrial user through an industrial steam pipeline, the second output port is connected with the high-temperature heat regenerator, the turbine is coaxially connected with the generator, the high-temperature heat regenerator comprises two gas input ports and two gas output ports, the first gas input port is connected with a second branch of the CO 2 storage tank gas output port, the second gas input port is connected with a second output port of the turbine, the first gas output port is connected with the data center, the second gas output port of the data center is connected with the low-temperature heat regenerator, the gas input port of the data center is connected with the first gas output port of the data center, the gas output port of the data center is divided into two paths, the first branch of the turbine is connected with the second input port of the turbine, the second branch of the low-temperature heat regenerator is connected with the second input port of the low-temperature heat regenerator, the high-temperature heat regenerator is connected with the high-temperature heat regenerator, and the high-temperature heat input port of the heat regenerator is connected with the high-temperature heat exchanger, and the high-temperature heat input port of the heat regenerator is connected with the high-temperature heat input port of the heat exchanger, and the heat input port of the heat exchanger.
When microalgae breathe at night, O 2 of the O 2 tank enters the microalgae culture tank along an O 2 input port at the bottom of the microalgae culture tank and an air inlet at the bottom of the stirring paddle, CO 2 generated by microalgae breathe enters the CO 2 compression system through a first CO 2 output port, and enters the bottom of the microalgae culture tank through a second CO 2 output port to serve as a reactant for microalgae photosynthesis in the daytime, microalgae breathes in the daytime to carry out photosynthesis, O 2 is sucked, generated O 2 enters the O 2 tank through an O 2 output port of the microalgae culture tank, the stirring paddle is connected with the fan blade through a first connecting shaft, and the fan blade rotates under the action of natural wind to control the rotation of the stirring paddle, so that microalgae liquid is stirred.
A four-way valve is arranged at the junction of the branches of the gas output port of the microalgae culture tank, the O 2 output port is closed at night, the first CO 2 output port is opened, the second CO 2 output port is closed, the O 2 output port is opened during the daytime, and the second CO 2 output port is opened.
The electric peak regulation method based on supercritical CO 2 integrated wind energy utilization comprises the following steps that fan blades rotate under the action of natural wind force and drive a second connecting shaft to rotate under the acceleration action of a gear box through a main shaft, and further drive a crank of a gas compression unit to rotate, wherein the crank rotates to drive a piston to circularly move up and down through a connecting rod, the crank rotates for one circle, the piston reciprocates up and down to complete two strokes, one working cycle is completed, the gas compression unit completes the working process of one air inlet, compression and air supply, the piston starts to move from a top dead center to a bottom dead center, an air inlet valve of the gas compression unit is opened, an air outlet valve is closed in the process, CO 2 of a first branch of a CO 2 output port of a microalgae culture tank enters a compression cavity through the air inlet valve at the moment to complete the air inlet process, the piston compresses CO 2 through the upward movement of the bottom dead center, the air inlet valve, the air outlet valve is closed, the CO 2 reaches the pressure of 20MPa, the air outlet valve reaches the critical temperature of the air outlet valve is closed, and the working cycle is completed, and the compression of the air compression unit reaches the air outlet valve is closed at the critical temperature of 20 MPa.
The CO 2 with the temperature of 20MPa and 450 ℃ enters the CO 2 storage tank through the preheating of the medium-temperature preheater, the gas outlet of the CO 2 storage tank is divided into two branches, wherein the first branch is connected with a turbine, the second branch is connected with the high-temperature regenerator, 10MPa and 200 ℃ intermediate industrial air exhaust is supplied to industrial users through the first output port of the turbine, the exhaust gas of the second output port of the turbine enters the second gas input port of the high-temperature regenerator, heat exchange is carried out on the exhaust gas and CO 2 with the temperature of 20MPa and 500 ℃ from the bottom outlet of the CO 2 storage tank, the exhaust gas enters the low-temperature regenerator through the second gas output port of the high-temperature regenerator, the CO 2 after heat release enters the data center through the first gas output port of the high-temperature regenerator, the CO 2 after heat absorption of the data center is divided into two bypasses, one branch is converged into the turbine to do work, the other branch is connected with the first input port of the low-temperature regenerator, the exhaust gas enters the high-temperature regenerator after the high-temperature air inlet valve is cooled down, and the CO 5356 is cooled down, and enters the high-temperature storage tank after the high-temperature air inlet valve, and the CO 2 is cooled down, and enters the high-temperature storage tank, and the high-temperature air inlet valve, and the CO 4225 is cooled, and the CO 5 is cooled, and cooled down, and enters the high-temperature storage unit.
The pressure temperature of the CO 2 storage tank is 20Mpa and 500 ℃, and the pressure of the middle air extraction temperature is 10Mpa and 200 ℃.
Compared with the prior art, the invention has the following advantages and effects:
The invention pre-heats and compresses CO 2 generated by the breathing action of microalgae at night, stores the CO 2 as a working medium for generating power by supercritical CO 2 in daytime, relieves electricity consumption peaks, simultaneously utilizes natural wind energy, drives a stirring paddle to uniformly mix microalgae liquid and gas on one hand, drives a gas compression unit to compress CO 2 through a gearbox to increase speed on the other hand, and effectively utilizes the wind energy;
The invention realizes the recycling of substances, O 2 generated by the photosynthesis of microalgae in the daytime can be used for breathing at night, and CO 2 generated at night can be used as a reactant for the photosynthesis in the daytime. The exhaust steam at the turbine outlet is heated by using high-temperature high-pressure CO 2 with the temperature of 20Mpa and 500 ℃ at the outlet of the CO 2 storage tank, meanwhile, the heat generated by the data center is utilized, on one hand, the temperature of the data center is reduced, on the other hand, the low-temperature CO 2 is heated, and meanwhile, the exhaust steam after the temperature is raised by using the CO 2 with the temperature of 20Mpa and 500 ℃ at the outlet of the data center is utilized, so that the gradient utilization of the waste heat is realized.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Fig. 2 is a schematic diagram of a CO 2 production system.
Fig. 3 is a schematic structural view of a comparative example of the present invention.
1. Microalgae culture tank, 2, O 2 tank, 3, stirring paddle, 4, first connecting shaft, 5, fan blade, 6, main shaft, 7, gear box, 8, second connecting shaft, 9, low temperature preheater, 10, gas compression unit, 101, crank, 102, piston, 103, connecting rod, 104, compression cavity, 105, air inlet valve, 106, air outlet valve, 11, medium temperature preheater, 12, CO 2 storage tank, 13, turbine, 14, generator, 15, industrial user, 16, data center, 17, high temperature regenerator, 18, low temperature regenerator, 19, heat supply user, 20, precooler.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
Examples
The technical scheme adopted by the invention for solving the problems is that the power peak regulation system based on supercritical CO 2 integrated wind energy utilization is characterized by comprising a CO 2 production system, a CO 2 compression system and a thermoelectric generation system;
The CO 2 production system comprises a microalgae culture tank 1, an O 2 tank 2, a stirring paddle 3 and a first connecting shaft 4, wherein the microalgae culture tank 1 comprises a feed inlet, an O 2 input port, a CO 2 input port and a gas output port, the gas output port comprises three branches, namely, an O2 output port, a CO2 first output port and a CO 2 second output port, the outlet of the O 2 tank 2 is connected with an O 2 input port at the bottom of the microalgae culture tank 1, the inlet of the O2 tank 2 is connected with an O2 output port of the microalgae culture tank 1, the first CO 2 output port of the microalgae culture tank 1 is connected with a gas compression system, the second CO 2 output port is connected with a CO 2 input port at the bottom of the microalgae culture tank 1, the bottom of the stirring paddle 3 is provided with an air inlet, the stirring paddle 3 is composed of a plurality of stirring paddles, the stirring paddle 3 is connected with a fan 2 compression system through the first connecting shaft 4, and the fan blade 3 is connected with a fan 2 compression system under the action of the fan, so that the fan blade 2 can fully and fully contact the microalgae liquid with the CO through the rotation of the fan 2 under the action of the fan blade 3, and the full diffusion effect of the fan can be achieved, and the quality of the microalgae can be fully improved.
The CO 2 compression system comprises fan blades 5, a main shaft 6, a gear box 7, a second connecting shaft 8, a low-temperature preheater 9, a gas compression unit 10, a medium-temperature preheater 11 and a CO 2 storage tank 12, wherein the fan blades 5 are connected with the gear box 7 through the main shaft 6, the gear box 7 is connected with a crank 101 of the gas compression unit 10 through the second connecting shaft 8, the gas compression unit 10 consists of a crank 101, a piston 102, a connecting rod 103, a compression cavity 104, an air inlet valve 105 and an air outlet valve 106, the crank 101 is connected with the second connecting shaft 8, the cross section area of the output end of the second connecting shaft 8 is consistent with the cross section area of the crank 101, the crank 101 is connected with a piston 102 through the connecting rod 103, the first connecting shaft 4 and the main shaft 6 are positioned on the same central line, the central line of the second connecting shaft 8 is kept horizontal with the central line of the first connecting shaft 4 and the main shaft 6, an inlet channel of the air inlet valve 105 is connected with a CO 2 first output port of the microalgae culture tank 1 through the low-temperature preheater 9, the output end of the gas preheating unit 10 is connected with the gear box 12 through the low-temperature preheater 9, the output end of the gas inlet valve 12 is connected with the second connecting shaft 12 through the second connecting shaft 3 and the high-temperature preheater 12, the air outlet valve 12 is connected with the crank 101 to the main shaft 13 through the first connecting shaft 12, the air inlet valve is connected with the air outlet of the natural air-phase bypass pipeline 13, and the natural air-conditioner is connected with the air storage tank 13, and the air-phase-saving device is connected with the air-phase-saving device 13, the air-conditioner is connected with the air-conditioner 1, and the air-phase air-conditioner is connected with the air-conditioning device is in the air-conditioning device through the air-conditioning device, and the air-conditioning device is in the air-conditioning device and the air-has the air system.
The thermoelectric generation system comprises a turbine 13, a generator 14, an industrial user 15, a data center 16, a high-temperature heat regenerator 17, a low-temperature heat regenerator 18, a heat supply user 19 and a precooler 20;
The turbine 13 comprises two input ports and two output ports, wherein the first input port is connected with a first branch of the output port of the CO 2 storage tank 12, and the second input port is connected with the output port from the data center 16, the first output port is an industrial steam extraction outlet which is connected with the industrial user 15 through an industrial steam pipeline, and the second output port is connected with the high-temperature regenerator 17;
The high-temperature heat regenerator 17 comprises two gas input ports and two gas output ports, wherein the first gas input port is connected with a second branch of a gas outlet of the CO 2 storage tank 12, the second gas input port is connected with a second output port of the turbine 13, the first gas output port is connected with the data center 16, the second gas output port is connected with the low-temperature heat regenerator 18, the gas input port of the data center 16 is connected with the first gas output port of the high-temperature heat regenerator 17, the gas output port of the data center 16 is divided into two paths, the first branch is connected with a second input port of the turbine 13, the second branch is connected with the low-temperature heat regenerator 18, the first input port is connected with the second branch of the data center 16, the second input port is connected with the high-temperature heat regenerator 17, the first output port is connected with the high-temperature heat regenerator 18 after being converged with the second branch of the outlet of the CO 2 storage tank 12, the second output port is connected with the precooler 20 through a heat supply user 19, and the output port of the precooler 20 is connected with the gas inlet valve 105 of the gas compression unit 10.
The working method of the power peak shaving system based on supercritical CO 2 integrated wind energy utilization is divided into 3 processes according to gas flow, and the working method is specifically as follows:
When microalgae breathe at night, O 2 of the O 2 tank 2 enters the microalgae culture tank 1 along an O 2 input port at the bottom of the microalgae culture tank 1 and an air inlet at the bottom of the stirring paddle 3, CO 2 generated by microalgae breathe, one path of the CO 2 enters the CO 2 compression system through a CO 2 first output port, the other path of the CO 2 enters the bottom of the microalgae culture tank 1 through a CO 2 second output port and is used as a reactant for microalgae photosynthesis in the daytime, microalgae photosynthesis is performed in the daytime, CO 2 is inhaled, and generated O 2 enters the O 2 tank 2 through an O 2 output port of the microalgae culture tank 1. The stirring paddle 3 is connected with the fan blade 5 through the first connecting shaft 4, the fan blade 5 rotates under the action of natural wind force, and the stirring paddle 3 is controlled to rotate, so that the effect of stirring microalgae liquid is achieved, CO 2、O2 is enabled to diffuse more uniformly, the microalgae liquid can be in contact with CO 2、O2 to react more fully and completely, and respiration and photosynthesis can occur more fully.
The branch junction of the gas output port of the microalgae culture tank 1 is provided with a four-way valve, the O 2 output port is closed at night, the CO 2 output port is opened, the CO 2 second output port is closed, the O 2 output port is opened during the daytime, and the CO 2 second output port is opened.
CO 2 compression Process
The fan blade 5 rotates under the action of natural wind force, the second connecting shaft 8 is driven to rotate under the acceleration action of the gear box 7 through the main shaft 6, the crank 101 of the gas compression unit 10 is driven to rotate, the crank 101 rotates to drive the piston 102 to circularly move up and down through the connecting rod 103, and one working cycle is completed after the crankshaft 101 rotates for one rotation, namely the piston 102 reciprocates up and down for two strokes, and one working cycle means that the gas compression unit 10 completes the working process of air intake, compression and air supply. The piston 102 starts to move from the top dead center to the bottom dead center, in the process, the air inlet valve 105 of the gas compression unit 10 is opened, the air outlet valve 106 is closed, after CO 2 of the first branch of the output port of the microalgae culture tank 1CO 2 enters the low-temperature preheater 9, low-temperature low-pressure CO 2 enters the inner cavity of the gas compression unit 10 through the air inlet valve 105 to complete the air inlet process, the piston 102 moves upwards from the bottom dead center to compress CO 2, at the moment, the air inlet valve 105 and the air outlet valve 106 are closed, when the pressure and the temperature of the CO 2 reach 20MPa and 450 ℃ (at the moment, the piston 102 is not at the top dead center), the air outlet valve 106 is opened, supercritical CO 2 enters the thermoelectric generation system, the piston 102 is at the top dead center, the air outlet valve 106 is closed to complete the compression and air supply process, and thus the gas compression unit 10 completes a working cycle.
3. Thermoelectric generation process:
CO 2 at 20MPa and 450 ℃ enters the CO 2 storage tank 12 through the preheating of the medium-temperature preheater 11 by the air outlet valve 106 of the gas compression unit 10, the gas outlet of the CO 2 storage tank 12 is divided into two branches, wherein a first branch is connected with the turbine 13, and a second branch is connected with the high-temperature regenerator 17;
intermediate industrial bleed air (10 MPa, 200C) is fed to the industrial user 15 via the first output of the turbine 13,
The exhaust gas of the second output port of the turbine 13 enters the second gas input port of the high temperature heat regenerator 17 to exchange heat with CO2 (20 Mpa, 500 ℃) from the bottom outlet of the CO 2 storage tank 12,
The exhaust gas enters the low temperature regenerator 18 through the second gas outlet of the high temperature regenerator 17,
The CO 2 after heat release enters the data center 16 through a first gas outlet of the high-temperature heat regenerator 17, the CO 2 after heat absorption of the data center 16 is divided into two bypasses, wherein one bypass merges with a first branch of the CO 2 storage tank 12 and enters the turbine 13 to apply work, the other bypass is connected into a first inlet of the low-temperature heat regenerator 18 to exchange heat with the exhaust gas from a second gas outlet of the high-temperature heat regenerator 17, on one hand, the cooled CO 2 merges with the gas of a second branch of the CO 2 storage tank 12 and enters the high-temperature heat regenerator 17, on the other hand, the warmed exhaust gas (5 Mpa and 350 ℃) firstly supplies heat to a user 19, then enters the precooler 20, the precooled CO 2 enters the air inlet valve 105 of the gas compression unit 10;
further, the pressure temperature of the CO 2 storage tank 12 of the system is 20Mpa and 500 ℃, and the pressure of the intermediate pumping temperature is 10Mpa and 200 ℃.
Furthermore, the pressure temperature of the CO 2 storage tank 12 of the system is 20Mpa and 500 ℃, and the pressure of the intermediate pumping temperature is not 10Mpa and 200 ℃.
Further, at night, the air outlet valve 106 of the air compression unit 10 is opened, CO 2 generated by the microalgae culture tank 1 enters the CO 2 compression system and becomes high-temperature and high-pressure CO 2 to enter the thermoelectric generation system, and at daytime, the air outlet valve 106 of the air compression unit 10 is closed, and the system utilizes the high-temperature and high-pressure CO 2 of the CO 2 storage tank 12 to generate electricity and supply heat.
Comparative example.
The technical scheme adopted by the invention for solving the problems is that the power peak regulation system based on supercritical CO 2 integrated wind energy utilization is characterized by comprising a CO 2 production system, a CO 2 compression system and a thermoelectric generation system;
The CO 2 production system comprises a microalgae culture tank 1, an O 2 tank 2, a stirring paddle 3 and a first connecting shaft 4, wherein the microalgae culture tank 1 comprises a feed inlet, an O 2 input port, a CO 2 input port, The gas output port comprises three branches, namely an O 2 output port, a CO 2 first output port, The device comprises a CO 2 second output port, an O 2 tank 2, a CO 2 first output port, a CO 2 second output port, a CO 2 input port, an air inlet, a stirring paddle 3, a fan blade 5, a fan blade 4 and a fan blade 3, wherein the O 2 input port is connected with the bottom of the microalgae culture tank 1, the O 2 tank 2 input port is connected with the O2 output port of the microalgae culture tank 1, the CO 2 first output port of the microalgae culture tank 1 is connected with the gas compression system, the CO 2 second output port is connected with the CO 2 input port of the bottom of the microalgae culture tank 1, the air inlet is arranged at the bottom of the stirring paddle 3, the O 2 input port of the microalgae culture tank 1 is connected with the air inlet at the bottom of the stirring paddle 3, the stirring paddle 3 is composed of a plurality of stirring paddles, the stirring paddle 3 is connected with the fan blade 5 of the CO 2 compression system through a first connecting shaft 4, the fan blade 5 rotates under the action of natural wind, the fan blade 4 controls the stirring paddle 3 to rotate, so that the microalgae liquid is stirred, the CO 2 is diffused more uniformly, and the microalgae liquid can be contacted with the CO 2 more fully, And the whole quality of the microalgae liquid is improved.
The CO 2 compression system comprises fan blades 5, a main shaft 6, a gear box 7, a second connecting shaft 8, a low-temperature preheater 9, a gas compression unit 10, a medium-temperature preheater 11 and a CO 2 storage tank 12, wherein the fan blades 5 are connected with the gear box 7 through the main shaft 6, the gear box 7 is connected with a crank 101 of the gas compression unit 10 through the second connecting shaft 8, the gas compression unit 10 consists of a crank 101, a piston 102, a connecting rod 103, a compression cavity 104, an air inlet valve 105 and an air outlet valve 106, the crank 101 is connected with the second connecting shaft 8, the cross section area of the output end of the second connecting shaft 8 is consistent with the cross section area of the crank 101, the crank 101 is connected with a piston 102 through the connecting rod 103, the center line of the first connecting shaft 4 and the main shaft 6 is positioned on the same center line, the center line of the second connecting shaft 8 is kept horizontal with the center line of the first connecting shaft 4 and the main shaft 6, an inlet channel of the air inlet valve 105 is connected with a CO 2 output port of the microalgae culture tank 1 through the low-temperature preheater 9, the output end of the gas box 10 is connected with the crank 101 through the low-temperature preheater 103, the cross section area of the second connecting shaft 8 is consistent with the cross section area of the crank 101, the crank 101 is integrally designed, the crank 101 is connected with the piston 102 through the connecting shaft 103 is connected with the air outlet valve 12, the CO 32 is driven by the air inlet valve 12, and the piston 12 is driven to rotate under the natural circulation, and the air storage tank 1 is driven by the air inlet valve 12, and the air is driven under the condition of the air circulation condition of the air through the air inlet valve 12, and the air inlet channel 12 is under the condition of the air circulation condition of the air through the air inlet valve 12.
The thermoelectric generation system comprises a turbine 13, a generator 14, an industrial user 15, a heat supply user 19 and a precooler 20, wherein the turbine 13 is connected with a gas output port of the CO 2 storage tank 12, a first output port is an industrial steam extraction outlet which is connected with the industrial user 15 through an industrial steam pipeline, a second output port is connected with the heat supply user 19 and is connected with the precooler 20, the turbine 13 is coaxially connected with the generator 14, and an output port of the precooler 20 is connected with an air inlet valve 105 of the gas compression unit 10.
The working method of the power peak shaving system based on supercritical CO 2 integrated wind energy utilization is divided into 3 processes according to gas flow, and the working method is specifically as follows:
When microalgae breathe at night, O 2 of the O 2 tank 2 enters the microalgae culture tank 1 along an O 2 input port at the bottom of the microalgae culture tank 1 and an air inlet at the bottom of the stirring paddle 3, CO 2 generated by microalgae breathe, one path of the CO 2 enters the CO 2 compression system through a CO 2 first output port, the other path of the CO 2 enters the bottom of the microalgae culture tank 1 through a CO 2 second output port and is used as a reactant for microalgae photosynthesis in the daytime, microalgae photosynthesis is performed in the daytime, CO 2 is inhaled, and generated O 2 enters the O 2 tank 2 through an O 2 output port of the microalgae culture tank 1. The stirring paddle 3 is connected with the fan blade 5 through the first connecting shaft 4, the fan blade 5 rotates under the action of natural wind force, and the stirring paddle 3 is controlled to rotate, so that the effect of stirring microalgae liquid is achieved, CO 2、O2 is enabled to diffuse more uniformly, the microalgae liquid can be in contact with CO 2、O2 to react more fully and completely, and respiration and photosynthesis can occur more fully.
The branch junction of the gas output port of the microalgae culture tank 1 is provided with a four-way valve, the O 2 output port is closed at night, the CO 2 output port is opened, the CO 2 second output port is closed, the O 2 output port is opened during the daytime, and the CO 2 second output port is opened.
CO 2 compression Process
The fan blade 5 rotates under the action of natural wind force, the second connecting shaft 8 is driven to rotate under the acceleration action of the gear box 7 through the main shaft 6, the crank 101 of the gas compression unit 10 is driven to rotate, the crank 101 rotates to drive the piston 102 to circularly move up and down through the connecting rod 103, and one working cycle is completed after the crankshaft 101 rotates for one rotation, namely the piston 102 reciprocates up and down for two strokes, and one working cycle means that the gas compression unit 10 completes the working process of air intake, compression and air supply. The piston 102 starts to move from the top dead center to the bottom dead center, in the process, the air inlet valve 105 of the gas compression unit 10 is opened, the air outlet valve 106 is closed, after CO 2 of the first branch of the output port of the microalgae culture tank 1CO 2 enters the low-temperature preheater 9, low-temperature low-pressure CO 2 enters the inner cavity of the gas compression unit 10 through the air inlet valve 105 to complete the air inlet process, the piston 102 moves upwards from the bottom dead center to compress CO 2, at the moment, the air inlet valve 105 and the air outlet valve 106 are closed, when the pressure and the temperature of the CO 2 reach 20MPa and 450 ℃ (at the moment, the piston 102 is not at the top dead center), the air outlet valve 106 is opened, supercritical CO 2 enters the thermoelectric generation system, the piston 102 is at the top dead center, the air outlet valve 106 is closed to complete the compression and air supply process, and thus the gas compression unit 10 completes a working cycle.
3. Thermoelectric generation process:
CO 2 at 20MPa and 450 ℃ enters the CO 2 storage tank 12 through the air outlet valve 106 of the gas compression unit 10 after being preheated by the medium-temperature preheater 11, the gas outlet of the CO 2 storage tank 12 is connected with the turbine 13, the intermediate industrial air suction (10 MPa and 200 ℃) is supplied to the industrial user 19 through the first output port of the turbine 13, the exhaust gas at the second output port of the turbine 13 supplies heat to the user, the precooler 20 is connected, and the precooled CO 2 enters the CO 2 compression system through the air inlet valve 105 of the gas compression unit 10.
In comparison with the example, the comparative example has fewer data center 16, high temperature regenerator 17, and low temperature regenerator 18.
The above examples and comparative examples were simulated, with ambient pressure and temperature of 22 ℃ and 0.10MPa, respectively. Under the condition that microalgae breathe normally at night, the wind speed is assumed to be 7m/s, the flow of CO 2 output by the CO 2 storage tank 12 is 20kg/s, the ratio of the CO 2 storage tank 12 entering the turbine 13 and the high-temperature regenerator 17 in the embodiment is 1:9, the temperature and the pressure of the turbine outlet are 150 ℃ and 5MPa, the intermediate air extraction ratio is 1/10, the gear box is of a secondary planetary and primary parallel shaft structure, and the transmission ratio is about 90. The simulation parameter settings are shown in table 1.
Table1 basic cycle parameters of the system
Thermodynamic efficiency analysis was performed on the system modeling of examples and comparative examples for a comprehensive and reasonable evaluation of system performance, with the system cycle efficiency of examples reaching 57% and the comparative example only at 42%.
The fundamental reason for the obvious improvement of the system efficiency of the analysis embodiment is that firstly, the exhaust steam at the turbine outlet is heated by using the high-temperature and high-pressure CO 2 gas of the CO 2 storage tank, and the exhaust steam is secondarily heated after heat exchange through the data center, so that heat is recovered for supplying heat, and the heat loss is reduced.
In addition, the CO 2 generated by the breathing action of the microalgae at night is heated and stored to be used as a working medium for supercritical CO 2 power generation, and natural wind power is utilized to drive the stirring paddles of the microalgae culture tank and the piston of the gas compression unit respectively, so that wind energy is effectively utilized. Meanwhile, the recycling of substances is realized, O 2 generated by photosynthesis of microalgae in the daytime can be used for breathing at night, and CO 2 generated at night can be used as a reactant for photosynthesis in the daytime.
In conclusion, the power peak shaving system based on supercritical CO 2 integrated wind energy utilization has good system thermodynamic performance and economic benefit, and obvious energy saving effect.
What is not described in detail in this specification is all that is known to those skilled in the art. Although the present invention has been described with reference to the above embodiments, it should be understood that the invention is not limited to the embodiments described above, but is capable of modification and variation without departing from the spirit and scope of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210869787.XA CN115355152B (en) | 2022-07-22 | 2022-07-22 | A power peak regulation system and method based on supercritical CO2 integrated wind energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210869787.XA CN115355152B (en) | 2022-07-22 | 2022-07-22 | A power peak regulation system and method based on supercritical CO2 integrated wind energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115355152A CN115355152A (en) | 2022-11-18 |
| CN115355152B true CN115355152B (en) | 2025-01-17 |
Family
ID=84032784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210869787.XA Active CN115355152B (en) | 2022-07-22 | 2022-07-22 | A power peak regulation system and method based on supercritical CO2 integrated wind energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115355152B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266964A (en) * | 2018-02-03 | 2018-07-10 | 杨正山 | A kind of coal-burning power plant's collecting carbonic anhydride couples air compressed energy-storage technique |
| CN111927723A (en) * | 2020-06-30 | 2020-11-13 | 华电电力科学研究院有限公司 | Electric power peak regulation system based on microalgae respiration coupling solar energy and supercritical hydrothermal reaction |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2563818A (en) * | 2017-05-05 | 2019-01-02 | Ceox Ltd | Mechanical/electrical power generation system |
| KR20190074617A (en) * | 2017-12-20 | 2019-06-28 | 연세대학교 산학협력단 | System coupled combined cycle power generation system and compressed air storage, and operating method thereof |
| CN109441573B (en) * | 2018-11-02 | 2021-07-23 | 中国石油大学(华东) | Zero-carbon natural gas co-generation process for peak shaving |
| JP6712672B1 (en) * | 2019-12-09 | 2020-06-24 | 新太郎 石山 | Power generation device and power generation system using supercritical CO2 gas |
| CN213205780U (en) * | 2020-06-30 | 2021-05-14 | 华电电力科学研究院有限公司 | System for coupling solar energy and supercritical hydrothermal reaction based on microalgae respiration |
-
2022
- 2022-07-22 CN CN202210869787.XA patent/CN115355152B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266964A (en) * | 2018-02-03 | 2018-07-10 | 杨正山 | A kind of coal-burning power plant's collecting carbonic anhydride couples air compressed energy-storage technique |
| CN111927723A (en) * | 2020-06-30 | 2020-11-13 | 华电电力科学研究院有限公司 | Electric power peak regulation system based on microalgae respiration coupling solar energy and supercritical hydrothermal reaction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115355152A (en) | 2022-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110206599B (en) | Combined cooling, heating and power system | |
| CN102213113B (en) | Compressed-air energy-storage system | |
| CN104405599B (en) | Fuel gas-supercritical carbon dioxide united power electricity generation system utilizing solar energy | |
| CN106286170B (en) | Solar energy, sea water source heat pump, combustion gas and supercritical carbon dioxide combined marine electricity generation system | |
| CN104675680B (en) | A kind of compressed-air energy-storage system of supply of cooling, heating and electrical powers | |
| CN109441741B (en) | A peak-adjustable energy storage system based on supercritical carbon dioxide cycle and its control method | |
| CN204572095U (en) | The co-generation unit that a kind of low temperature exhaust heat drives | |
| CN106567748B (en) | The compressed-air energy-storage system of nonadiabatic gas expansion | |
| CN110887278B (en) | Energy self-sufficient carbon dioxide cogeneration system for low-grade heat source | |
| CN106224040A (en) | A kind of electric heating energy-storage polygenerations systeme | |
| CN103438612B (en) | Compressed gas distributed energy source system using rare gases as working medium | |
| CN104863651A (en) | Low-temperature waste heat-driven heat and electricity parallel supply method and system implementing same | |
| CN206054020U (en) | It is a kind of to integrate heat supply, refrigeration and the electric heating energy-storage system for generating electricity | |
| CN110206598A (en) | It is a kind of based on the heat pump energy-storing and power-generating system for storing up cold heat accumulation indirectly | |
| CN108981160B (en) | Heat supply method of open type heat pump with air circulation | |
| CN108915964A (en) | A kind of Bretton distributing-supplying-energy system driven using tower type solar | |
| CN108397936B (en) | A kind of Combined cold-heat-power supplying circulation system and method | |
| CN104847428B (en) | A kind of external-burning type Boulez with solar energy heating pauses combined cycle generating unit | |
| CN110005486A (en) | A zero-carbon emission cooling, heating and power cogeneration device and working method based on total thermal cycle | |
| CN113179610B (en) | Data center system built near pump station and integrating refrigeration and heat supply | |
| CN109612148B (en) | Wet air thermodynamic cycle cogeneration system and its working method | |
| CN115355152B (en) | A power peak regulation system and method based on supercritical CO2 integrated wind energy | |
| CN110259654A (en) | Solar energy humid air turbine water-electricity cogeneration system and its working method | |
| CN115324677B (en) | Combined heat and power system and method integrating wind energy and wave energy | |
| CN217976391U (en) | Gas turbine combined cycle power generation system under distributed energy environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |