CN114508869A - Solar energy-wind energy coupled cold-electricity combined energy source system - Google Patents
Solar energy-wind energy coupled cold-electricity combined energy source system Download PDFInfo
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- CN114508869A CN114508869A CN202210216827.0A CN202210216827A CN114508869A CN 114508869 A CN114508869 A CN 114508869A CN 202210216827 A CN202210216827 A CN 202210216827A CN 114508869 A CN114508869 A CN 114508869A
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- 238000001816 cooling Methods 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 16
- 238000004146 energy storage Methods 0.000 claims abstract description 15
- 238000005057 refrigeration Methods 0.000 claims abstract description 9
- 238000010248 power generation Methods 0.000 abstract description 9
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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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
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type systems
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D13/00—Stationary devices, e.g. cold-rooms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention provides a solar energy-wind energy coupled cold-electricity combined energy source system, which comprises three subsystems, namely a wind energy storage and power supply system, a solar organic Rankine cycle system and a cooling system, wherein the wind energy storage and power supply system comprises: the wind power energy storage and power supply system is formed by connecting a wind driven generator, an electric power storage device and three working medium pumps; the solar organic Rankine cycle system is formed by sequentially connecting a solar heat collector, a working medium pump, a heat tank, an expander, a generator, a condenser and a heat exchanger; the cold supply system is formed by sequentially connecting an evaporator, a refrigeration house, a compressor, a condenser, an expansion valve, a working medium pump and a cold tank. Through the mode, the refrigeration system can effectively improve the utilization efficiency of energy, and can refrigerate a refrigeration house while providing power for the generator by utilizing the mutual coupling of solar energy and wind energy. But also belongs to green power generation, thereby having wide application prospect.
Description
Technical Field
The invention relates to the field of new energy, in particular to a solar energy-wind energy coupled cold-electricity combined energy source system.
Background
In China, the power industry is the most main source of current carbon emission, and the carbon emission accounts for more than 1/3 of the total carbon emission. Therefore, the core of our country for realizing the double-carbon goal is to construct a novel power system mainly based on new energy power generation, promote the facility construction of the low-carbon and low-energy-consumption power system, enhance the popularization and application of low-carbon, energy-saving and clean production technologies, and match corresponding policy measures and marketization mechanisms, thereby realizing the technical progress of the optimization adjustment of energy structure and energy supply.
At present, under the background of 'double carbon', the single clean energy source replacing the traditional energy source cannot completely meet the actual requirement, and the trend of integrating a multi-energy complementary system is developed. From the viewpoint of energy structure, the current renewable energy sources and the traditional energy sources have met with a turning point. In the process of traditional energy sources of coal reduction and decarburization, clean energy sources such as solar energy, air energy and the like are highlighted. From the implementation results, the concept of 'multi-energy complementation promotion of traditional energy transformation and intelligent solution to make energy cleaner' has become one of the most effective ways to reduce energy consumption and carbon emission in China and solve the problem of energy demand in novel urbanization development.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a solar energy-wind energy coupled cold-electricity combined energy source system, which can overcome the defects of a single power generation mode by utilizing the respective advantages of solar energy and wind energy and achieve the aims of improving the comprehensive utilization of renewable energy sources and improving the efficiency.
The technical scheme of the invention is realized as follows:
a solar-wind coupled cold-cogeneration energy source system, comprising: the system comprises a wind energy storage and power supply system, a solar organic Rankine cycle system and a cooling system; the wind energy storage and power supply system, the solar organic Rankine cycle system and the cooling system are mutually connected; the wind energy storage and power supply system supplies power to the solar organic Rankine cycle system and the cooling system.
Preferably, the wind power energy storage and power supply system comprises a first wind power generator (1501), a second wind power generator (1502) and an electric storage device (16), wherein the first wind power generator (1501) and the second wind power generator (1502) are connected in series and are connected with the electric storage device (16) through a line to store electric energy into the electric storage device (16), the electric storage device (16) supplies energy to a first working medium pump (201), a second working medium pump (202) and a third working medium pump (203) in the solar organic Rankine cycle system and the cooling system, and the electric storage device (16) is also connected with a mains supply in a grid mode.
Preferably, the solar organic Rankine cycle system is formed by sequentially connecting a solar heat collector (1), a first working medium pump (201), a heat exchanger (3), a hot tank (4), an expansion machine (5), a generator (6), a first condenser (701), a first three-way pipe (801) and a second working medium pump (202), and the solar organic Rankine cycle system and the cooling system are coupled together through the first three-way pipe (801) and the second three-way pipe (802).
Preferably, the cold supply system is composed of an evaporator (12), a refrigeration house (13), a compressor shell (9), a compressor (10), a condenser (702), a three-way pipe II (802), an expansion valve (11), a working medium pump III (203) and a cold tank (14), wherein the evaporator (12), the compressor (10), the condenser (702), the three-way pipe II (802) and the expansion valve (11) are sequentially connected, and the other end of the three-way pipe II (802) is further sequentially connected with the working medium pump III (203) and the cold tank (14).
Preferably, the solar heat collector (1) is a trough type solar heat collector.
The invention has the beneficial effects that: the invention has the characteristics of high generating efficiency, sustainable and stable operation, cleanness and no pollution, and compared with the traditional single wind power generation system and the single solar power generation system:
1. and (3) resource advantage complementation: the solar energy is coupled with the wind energy to generate electricity, so that the defect of low efficiency of the thermal power station in operation is reduced; wind energy is used as basic guarantee supply, so that partial energy loss during power generation is reduced, and the energy utilization efficiency is increased;
2. sharing working medium resources: the solar thermal power generation and the steam compression refrigeration commonly use one working medium in the operation, thereby reducing the loss of the working medium, improving the utilization rate of the working medium, and supplying cold to users while generating power;
3. the system efficiency is improved: the solar energy can improve working medium parameters in thermal power generation, so that steam entering a steam turbine has higher work capacity, and the power generation efficiency is finally improved; the input of solar energy can also slow down the consumption and quality attenuation of geothermal resources, thereby prolonging the exploitation life of other resources, meeting the requirements of energy conservation and emission reduction and being beneficial to environmental protection;
4. the system has the peak shaving performance, can meet the peak shaving requirement of a power grid, and has remarkable effects on relieving the contradiction between power supply and demand and reducing pollutant emission.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, a solar-wind energy coupled cold-electricity cogeneration energy source system comprises: the system comprises a wind energy storage and power supply system, a solar organic Rankine cycle system and a cooling system; the wind energy storage and power supply system, the solar organic Rankine cycle system and the cooling system are mutually connected; and the wind power energy storage and power supply system supplies power for the solar organic Rankine cycle system and the cooling system.
The wind power energy storage and power supply system is composed of a first wind power generator (1501), a second wind power generator (1502) and an electric storage device (16), wherein the first wind power generator (1501) and the second wind power generator (1502) are connected in series and are connected with the electric storage device (16) through a line to store electric energy into the electric storage device (16), the electric storage device (16) supplies energy to a first working medium pump (201), a second working medium pump (202) and a third working medium pump (203) in the solar organic Rankine cycle system and the cooling system, the electric storage device (16) is also connected with a mains supply in a grid mode, and when the two wind power generators are insufficient in energy supply, the three working medium pumps are supplied with power through the mains supply.
The solar organic Rankine cycle system is formed by sequentially connecting a solar heat collector (1), a first working medium pump (201), a heat exchanger (3), a heat tank (4), an expansion machine (5), a generator (6), a first condenser (701), a first three-way pipe (801) and a second working medium pump (202), wherein the solar heat collector (1) is a groove type solar heat collector, and the solar organic Rankine cycle system and a cooling system are coupled together through the first three-way pipe (801) and the second three-way pipe (802).
The solar organic Rankine cycle system sends the hot working medium in the solar heat collector (1) into an organic Rankine cycle through a pipeline, firstly, works in an expansion machine (5), the output shaft work of the expansion machine (5) is used for driving a generator (6) and a compressor (10) in a cooling system to work, the working hot working medium enters a condenser (701) to be cooled, enters a heat exchanger (3) through a three-way pipe I (801) and a working medium pump II (202) to exchange heat with the hot working medium from the solar heat collector (1), enters a hot tank (4) together, and then carries out the next organic Rankine cycle; the hot working medium firstly enters the compressor (10) which is cooled and does work in the compressor shell (9), the compressor (10) is cooled and then enters the evaporator (12) for refrigeration, and the cooled working medium flowing out of the three-way pipe (801) can also enter the compressor shell to enter the compressor shell (9) to cool the compressor (10) which does work.
The cold supply system is composed of an evaporator (12), a refrigeration house (13), a compressor shell (9), a compressor (10), a condenser (702), a three-way pipe II (802), an expansion valve (11), a working medium pump III (203) and a cold tank (14), wherein the evaporator (12), the compressor (10), the condenser (702), the three-way pipe II (802) and the expansion valve (11) are sequentially connected, and the other end of the three-way pipe II (802) is further sequentially connected with the working medium pump III (203) and the cold tank (14).
The solar organic Rankine cycle system and the cooling system are coupled together through a first three-way pipe (801) and a second three-way pipe (802), wherein: part of working medium cooled in the condenser I (701) is sent to a cooling system for refrigeration through a three-way pipe I (801); and a second three-way pipe (802) introduces part of the working medium cooled in the second condenser (702) into the cold tank (14) and then flows into the solar heat collector (1) in the solar organic Rankine cycle system.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A solar-wind coupled cold-cogeneration energy source system, comprising: the system comprises a wind energy storage and power supply system, a solar organic Rankine cycle system and a cooling system; the wind energy storage and power supply system, the solar organic Rankine cycle system and the cooling system are mutually connected; the wind energy storage and power supply system supplies power to the solar organic Rankine cycle system and the cooling system.
2. The solar-wind coupled cold-cogeneration energy system of claim 1, wherein: the wind power energy storage and power supply system is composed of a first wind power generator (1501), a second wind power generator (1502) and an electric storage device (16), wherein the first wind power generator (1501) and the second wind power generator (1502) are connected in series and are connected with the electric storage device (16) through a line to store electric energy into the electric storage device (16), the electric storage device (16) supplies energy to three working medium pumps in a solar organic Rankine cycle system and a cooling system, and the working medium pumps comprise: the working medium pump I (201), the working medium pump II (202) and the working medium pump III (203), and the electric power storage device (16) is also connected with the mains supply in a grid mode.
3. The solar-wind coupled cold-cogeneration energy system of claim 1, wherein: the solar organic Rankine cycle system is formed by sequentially connecting a solar heat collector (1), a first working medium pump (201), a heat exchanger (3), a hot tank (4), an expansion machine (5), a generator (6), a first condenser (701), a first three-way pipe (801) and a second working medium pump (202), and the solar organic Rankine cycle system and the cooling system are coupled together through the first three-way pipe (801) and the second three-way pipe (802).
4. The solar-wind coupled cold-cogeneration energy system of claim 1, wherein: the cold supply system is composed of an evaporator (12), a refrigeration house (13), a compressor shell (9), a compressor (10), a condenser (702), a three-way pipe II (802), an expansion valve (11), a working medium pump III (203) and a cold tank (14), wherein the evaporator (12), the compressor (10), the condenser (702), the three-way pipe II (802) and the expansion valve (11) are sequentially connected, and the other end of the three-way pipe II (802) is also sequentially connected with the working medium pump III (203) and the cold tank (14).
5. The solar-wind coupled cold-cogeneration energy system of claim 1, wherein: the solar heat collector (1) is a groove type solar heat collector.
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| CN202210216827.0A CN114508869A (en) | 2022-03-07 | 2022-03-07 | Solar energy-wind energy coupled cold-electricity combined energy source system |
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| CN202210216827.0A CN114508869A (en) | 2022-03-07 | 2022-03-07 | Solar energy-wind energy coupled cold-electricity combined energy source system |
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