CN111852798B - Solar energy utilization-based heat-electricity-clean water co-production system - Google Patents
Solar energy utilization-based heat-electricity-clean water co-production system Download PDFInfo
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- CN111852798B CN111852798B CN202010785791.9A CN202010785791A CN111852798B CN 111852798 B CN111852798 B CN 111852798B CN 202010785791 A CN202010785791 A CN 202010785791A CN 111852798 B CN111852798 B CN 111852798B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 239000010865 sewage Substances 0.000 claims abstract description 27
- 238000009284 supercritical water oxidation Methods 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims description 33
- 238000000926 separation method Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 12
- 238000005338 heat storage Methods 0.000 claims description 9
- 230000001590 oxidative effect Effects 0.000 claims description 9
- 238000010248 power generation Methods 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 7
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 34
- 238000005516 engineering process Methods 0.000 description 12
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000376 reactant Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- 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
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
- F01D15/08—Adaptations for driving, or combinations with, pumps
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- 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
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/006—Auxiliaries or details 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
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
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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
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
-
- 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
-
- 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
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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
- 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
- F01K25/106—Ammonia
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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
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
- F01K27/02—Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
-
- 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
- F01K7/32—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 using steam of critical or overcritical pressure
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- 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
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
- F03G6/065—Devices for producing mechanical power from solar energy with solar energy concentrating means having a Rankine cycle
- F03G6/067—Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
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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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- 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
-
- 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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
A heat-electricity-clean water co-production system based on solar energy utilization divides solar radiation energy collected by a solar collector into three parts, and one part enters an energy storage system; a portion of the energy is used as an energy source of the supercritical Brayton cycle-cogeneration subsystem; and one part of the energy is used as an energy source of a supercritical water oxidation system, and the problems of electricity consumption, heat consumption and water consumption of users are solved. The heat load, the electric load and the sewage load in the system are mutually coupled and mutually influenced, and the cooperative control of the electric load, the heat load and the sewage load of the whole system can be realized by means of initial energy distribution, subsystem thermodynamic parameter adjustment and the likeThe low-grade heat of the whole system is reused according to the energy gradient principle, the energy utilization rate of the system is improved, and the CO is used 2 Gas tank pair CO 2 Recycling and reutilizing CO 2 Zero emission. And the system is not single and invariable, and different subsystem collocation schemes can be selected according to different conditions due to the diversity of subsystem forms.
Description
Technical Field
The invention belongs to the technical field of energy utilization, relates to the field of supercritical water oxidation and organic Rankine cycle, and particularly relates to a heat-electricity-clean water co-production system based on solar energy utilization.
Background
The heat and power cogeneration technology of a thermal power plant is mainly used for meeting the electricity and heat consumption demands of users at present, but the burning of coal in the thermal power plant aggravates the burden of the environment, the research on clean energy sources is a current hot spot for meeting the demands of users, the application of the solar heat and power cogeneration technology has no influence on the environment while solving the demands of users, but the utilization of solar radiation energy absorbed by a heat collecting device in a solar heat and power cogeneration system is not perfect at present, and some low-grade energy is not reused, so that unnecessary energy waste is caused.
The treatment of industrial sewage has been in the spotlight of society, and with the rapid increase of industrial sewage discharge, the conventional sewage treatment technology is difficult to achieve the sewage treatment requirement in terms of efficiency and technology, and the supercritical water oxidation technology can deeply oxidize various organic matters in industrial sewage to convert the organic matters into clean water and CO 2 Inorganic salts with stable related elements, and the like. The supercritical oxidation technology for treating sewage has the characteristics of high efficiency and cleanness. And the traditional sewage treatment technology does not reasonably utilize a large amount of chemical energy contained in organic matters in the wastewater, and the chemical energy releases a large amount of heat energy in the oxidation process in the supercritical water oxidation process, so that the chemical energy is reasonably utilizedThe thermal energy may increase the utilization of the energy.
The utilization of energy is very important, and some of the energy which seems to have little influence is beneficial to enterprises and society if the energy can be effectively utilized under the improvement of management technology. At present, solar energy is mainly used for generating electricity, and finally the solar energy is converted into electric energy to be provided for users, so that a large amount of energy waste is caused because the energy is not subjected to cascade utilization. Meanwhile, in the current industrial sewage treatment process, the traditional sewage treatment technology has the advantages of no cleanliness, high efficiency and the like, and a great amount of organic chemical energy in sewage cannot be well utilized when the supercritical water oxidation high-efficiency technology is utilized. Whether cogeneration or sewage treatment, some low-grade heat is not reasonably utilized, so that unnecessary energy waste is caused.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a heat-electricity-clean water co-production system based on solar energy utilization, which is used for overall management of energy in solar energy heat-electricity co-production and energy in supercritical water oxidation, wherein heat load, electric load and sewage load of the system are mutually coupled and mutually influenced, and the cooperative control of the electric load, the heat load and the sewage load of the whole system is realized by means of initial energy distribution, subsystem thermal parameter adjustment and the like. And the principle of energy cascade utilization is utilized to recycle some low-grade heat energy, CO 2 Also recycling and reusing to realize CO 2 Zero emission. Meanwhile, the energy problem and the sewage treatment problem are solved, and the problems of electricity consumption, water consumption and heat consumption of users are met.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a heat-electricity-clean water cogeneration system based on solar energy utilization, includes solar collector 29, and the export of solar collector 29 divide into three flow paths:
the first strip is connected with the heat storage device 24, the outlet of the heat storage device 24 is connected with the 3# working medium pump 23, and the 3# working medium pump 23 is connected with the solar heat collection device 29 to complete one cycle;
the second heat source measuring inlet connected with the supercritical water reactor 13, the heat source measuring outlet of the supercritical water reactor 13 is connected with the heat source side inlet of the 3# heat regenerator 20, the heat source side outlet of the 3# heat regenerator 20 is connected with the heat source side inlet of the 2# heat regenerator 19, the heat source side outlet of the 2# heat regenerator 19 is connected with the 3# working medium pump 23, and the 3# working medium pump 23 is connected with the solar heat collecting device 29 to complete a cycle;
and the third heat source measuring port connected with the evaporator 25 is connected with the 2# working medium pump 22, the 2# working medium pump 22 is connected with the 3# working medium pump 23, and the 3# working medium pump 23 is connected with the solar heat collecting device 29 to complete a cycle.
The outlet of the evaporator 25 is connected to the inlet of the 3# expander 3, the outlet of the 3# expander 3 is connected to the inlet of the 4# regenerator 26, the outlet of the 4# regenerator 26 is connected to the inlet of the 5# regenerator 27, the outlet of the 5# regenerator 27 is divided into two branches, one branch is connected to the inlet of the 1# compressor 4, the outlet of the 1# compressor 4 is connected to the inlet of the 4# regenerator 26, the other branch is connected to the inlet of the 6# regenerator 28, the outlet of the 6# regenerator 28 is connected to the inlet of the 2# compressor 5, the outlet of the 2# compressor 5 is connected to the inlet of the 5# regenerator 27, the outlet of the 5# regenerator 27 is connected to the inlet of the 4# regenerator 26, and the outlet of the 4# regenerator 26 is connected to the inlet of the evaporator 25, thereby completing a cycle.
The # 2 compressor 5 may be a multi-stage compression-inter-stage cooling structure.
The No. 1 compressor 4 is a low-pressure compressor, the No. 2 compressor 5 is a high-pressure compressor, and the working medium of the supercritical Brayton cycle-cogeneration subsystem is supercritical CO 2 ，NH 3 Or liquid nitrogen.
The working medium inlet end of the supercritical water reactor 13 is connected with the working medium outlet of the No. 1 heat regenerator 12, and the working medium inlet of the No. 1 heat regenerator 12 is divided into two branches: the first is connected with an oxidizing gas inlet through a multistage compression-interstage cooling structure II, the second is connected with a sewage buffer tank 10 through a booster pump 11, a slag discharging port of a supercritical water reactor 13 is connected with a slag storage tank 32, and a cold source measuring port of the supercritical water reactor 13 is connected with a No. 2 expansion valveThe inlet of the machine 2, the outlet of the 2# expander 2 is connected with the inlet of the 2# condenser 21, the exhaust heat of the 2# condenser 21 is supplied to a heat user, the outlet of the machine is connected with the gas-liquid separation device 16, the gas outlet of the gas-liquid separation device 16 is connected with the gas separation device 15, and the CO is completed in the gas separation device 15 2 The liquid outlet of the gas-liquid separation device 16 is a clean water outlet, thereby constituting an SCWO subsystem.
The multistage compression-interstage cooling structure II comprises a 3# compressor 6, an outlet of the 3# compressor 6 is connected with a working medium inlet of the 1# regenerator 12, an inlet of the 3# compressor 6 is connected with a 4# condenser 31, an inlet of the 4# condenser 31 is connected with an outlet of the 4# compressor 7, an inlet of the 4# compressor 7 is connected with an oxidizing gas inlet, the booster pump 11 is connected with a gas outlet of the 5# compressor 8, and an inlet of the 5# compressor 8 is connected with the oxidizing gas inlet; the medium outlet of the No. 1 heat regenerator 12 is connected with the cold source side inlet of the No. 3 heat regenerator 20, the medium inlet of the No. 1 heat regenerator 12 is connected with the cold source side outlet of the No. 3 heat regenerator 20, and the No. 1 heat regenerator 12 and the No. 3 heat regenerator 20 absorb heat and release heat to complete a cycle.
The cold source side inlet of the No. 2 heat regenerator 19 is connected with the outlet of the No. 1 working medium pump 17, the cold source side outlet of the No. 2 heat regenerator 19 is connected with the inlet of the No. 1 expander 1, the outlet of the No. 1 expander 1 is connected with the inlet of the No. 1 condenser 18, the heat discharged by the No. 1 condenser 18 is supplied to a heat user, the outlet of the No. 1 condenser is connected with the inlet of the No. 1 working medium pump 17 to complete a cycle, thereby forming an ORC subsystem, and working mediums of the ORC subsystem are R123, R245fa or R134a or mixed working mediums formed by mixing more than two pure organic matters.
In the ORC subsystem, a common regenerator is added between the 1# expander 1 and the 1# condenser 18 and between the 1# working medium pump 17 and the 2# regenerator 19, and the regenerator is respectively filled with the exhaust gas of the 1# expander 1 and the liquid working medium pressurized by the 1# working medium pump 17, and the liquid working medium is heated by the exhaust gas of the 1# expander 1 and then enters the 2# regenerator 19,1# expander 1, and the exhaust gas is cooled by the liquid working medium and then enters the 1# condenser 18.
The expanders and compressors of the present invention are all coaxially connected to the power generation equipment 9.
Compared with the prior art, the invention utilizes the principle of energy cascade utilization and comprises the whole systemLow grade energy in reactant of solar energy utilization medium and supercritical water oxidation system and supercritical brayton cycle is recycled and used for CO 2 Recycling is performed, and the effects of energy conservation and environmental protection are achieved. And the ORC system and the supercritical Brayton cycle cogeneration have different forms and are not single, different collocation schemes can be selected according to different requirements, for example, the collocation scheme of the ORC system with a regenerator and the supercritical Brayton cycle cogeneration system adopting single-machine compression, or the collocation scheme of the ORC system without the regenerator and the supercritical Brayton cycle cogeneration system adopting multi-stage compression, and the like.
Drawings
FIG. 1 is a schematic view of the structure of the present invention
Wherein 1 is a 1# expander, 2 is a 2# expander, 3 is a 3# expander, 4 is a 1# compressor, 5 is a 2# compressor, 6 is a 3# compressor, 7 is a 4# compressor, 8 is a 5# compressor, 9 is a power generation device, 10 is a sewage buffer tank, 11 is a booster pump, 12 is a 1# regenerator, 13 is a supercritical water reactor, and 14 is CO 2 The storage tank 15 is a gas separation device, 16 is a gas-liquid separation device, 17 is a 1# working medium pump, 18 is a 1# condenser, 19 is a 2# regenerator, 20 is a 3# regenerator, 21 is a 2# condenser, 22 is a 2# working medium pump, 23 is a 3# working medium pump, 24 is a heat storage device, 25 is an evaporator, 26 is a 4# regenerator, 27 is a 5# regenerator, 28 is a 3# condenser, 29 is a solar heat collection device, 30 is a heliostat, 31 is a 4# condenser, and 32 is a slag storage tank.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1, a heat-electricity-clean water co-production system based on solar energy utilization comprises a solar heat collecting device 29, wherein an outlet of the solar heat collecting device 29 is divided into three flow paths:
the first strip is connected with the heat storage device 24, the outlet of the heat storage device 24 is connected with the 3# working medium pump 23, and the 3# working medium pump 23 is connected with the solar heat collection device 29 to complete one cycle.
The second heat source measuring inlet connected with the supercritical water reactor 13, the heat source measuring outlet of the supercritical water reactor 13 is connected with the heat source side inlet of the 3# heat regenerator 20, the heat source side outlet of the 3# heat regenerator 20 is connected with the heat source side inlet of the 2# heat regenerator 19, the heat source side outlet of the 2# heat regenerator 19 is connected with the 3# working medium pump 23, and the 3# working medium pump 23 is connected with the solar heat collecting device 29 to complete one cycle.
And the third heat source measuring port connected with the evaporator 25 is connected with the 2# working medium pump 22, the 2# working medium pump 22 is connected with the 3# working medium pump 23, and the 3# working medium pump 23 is connected with the solar heat collecting device 29 to complete a cycle.
The co-production system of the invention adopts a multi-stage expander, and is illustrated by a three-stage expander, which is respectively expressed as an expander 1, an expander 2# 2 and an expander 3# 3.
The heat source side outlet of the 5# regenerator 27 is divided into two branches, one branch is connected with the inlet of the 1# compressor 4, the outlet of the 1# compressor 4 is connected with the inlet of the 4# regenerator 26, the other branch is connected with the inlet of the 6# regenerator 28, the outlet of the 6# regenerator 28 is connected with the inlet of the 2# compressor 5, the outlet of the 2# compressor 5 is connected with the inlet of the 5# regenerator 27, the outlet of the 5# regenerator 27 is connected with the inlet of the 4# regenerator 26, and the outlet of the 4# regenerator 26 is connected with the inlet of the evaporator 25 to complete a cycle, thereby forming the supercritical brayton cycle-cogeneration subsystem.
In the present invention, the 2# compressor 5 may be a multi-stage compression-inter-stage cooling structure, and the present embodiment adopts single-stage compression.
The working medium inlet end of the supercritical water reactor 13 is connected with the working medium outlet of the No. 1 heat regenerator 12, and the working medium inlet of the No. 1 heat regenerator 12 is divided into two branches: the first is connected with an oxidizing gas inlet through a multistage compression-interstage cooling structure II, the second is connected with a sewage buffer tank 10 through a booster pump 11, a slag discharging port of a supercritical water reactor 13 is connected with a slag storage tank 32, a cold source measuring port of the supercritical water reactor 13 is connected with an inlet of a No. 2 expander 2, an outlet of the No. 2 expander 2 is connected with an inlet of a No. 2 condenser 21, and a discharge of the No. 2 condenser 21The heat is supplied to the heat user, the outlet of the heat is connected with the gas-liquid separation device 16, the gas outlet of the gas-liquid separation device 16 is connected with the gas separation device 15, and CO is completed in the gas separation device 15 2 The liquid outlet of the gas-liquid separation device 16 is a clean water outlet, thereby constituting an SCWO subsystem.
Specifically, in the second stage compression-inter-stage cooling structure in this embodiment, two stages of compression are adopted, including a 3# compressor 6 and a 4# compressor 7, an outlet of the 3# compressor 6 is connected to a working medium inlet of the 1# regenerator 12, an inlet of the 3# compressor 6 is connected to a 4# condenser 31, an inlet of the 4# condenser 31 is connected to an outlet of the 4# compressor 7, an inlet of the 4# compressor 7 is connected to an oxidizing gas inlet, a booster pump 11 is connected to a gas outlet of the 5# compressor 8, and an inlet of the 5# compressor 8 is connected to the oxidizing gas inlet; the medium outlet of the # 1 heat regenerator 12 is connected with the cold source side inlet of the # 3 heat regenerator 20, the medium inlet of the # 1 heat regenerator 12 is connected with the cold source side outlet of the # 3 heat regenerator 20, and the # 1 heat regenerator 12 and the # 3 heat regenerator 20 absorb heat and release heat to complete a cycle.
The cold source side inlet of the No. 2 heat regenerator 19 is connected with the outlet of the No. 1 working medium pump 17, the cold source side outlet of the No. 2 heat regenerator 19 is connected with the inlet of the No. 1 expander 1, the outlet of the No. 1 expander 1 is connected with the inlet of the No. 1 condenser 18, the heat discharged by the No. 1 condenser 18 is supplied to a heat user, and the outlet of the heat discharged by the No. 1 condenser 18 is connected with the inlet of the No. 1 working medium pump 17 to complete one cycle, so that an ORC subsystem is formed.
In the ORC subsystem, a common heat regenerator is added between the 1# expander 1 and the 1# condenser 18 and between the 1# working medium pump 17 and the 2# heat regenerator 19, and the heat regenerators are respectively filled with the exhaust gas of the 1# expander 1 and the liquid working medium pressurized by the 1# working medium pump 17, and the liquid working medium is heated by the exhaust gas of the 1# expander 1 and then enters the 2# heat regenerator 19,1# expander 1, and the exhaust gas is cooled by the liquid working medium and then enters the 1# condenser 18.
In the invention, the solar heat collecting device 29 absorbs sunlight reflected by the heliostat 30 to convert solar energy into heat energy, and takes heat conduction oil as an energy transportation carrier, and the heat conduction oil can be replaced by other working media meeting the working condition requirements.
In the invention, a 1# expander 1, a 2# expander 2, a 3# expander 3, a 1# compressor 4, a 2# compressor 5, a 3# compressor 6, a 4# compressor 7, a 5# compressor 8 and a power generation device 9 are coaxially connected, the compressors are driven to operate by the output work of the multi-stage expander, and the redundant output work is input into the power generation device 9 for power generation. The booster pump 11 for boosting the sewage is driven by the 5# compressor 8.
In the supercritical Brayton cycle-CHP subsystem, the working medium can adopt supercritical CO 2 、NH 3 Or working medium meeting the working condition requirements such as liquid nitrogen and the like, and the invention uses CO 2 An explanation is given.
In the organic Rankine cycle, working media meeting the working condition requirements such as R123, R245fa or R134a or the like, or mixed working media meeting the working condition requirements formed by mixing two or more pure organic matters can be adopted.
The two-way valve and the three-way valve are arranged on each pipeline and between the pipelines, and can be electromagnetic and provided with a radio frequency control device; each working medium pump and each booster pump can be provided with a frequency conversion facility and a radio frequency control device.
On the basis, the energy utilization mechanism of the invention is as follows:
the heat conduction oil releases heat to the supercritical water oxidation reactor 1, and then passes through the No. 3 heat regenerator 20 and the No. 2 heat regenerator 19 in sequence, so that the heat is provided for reactants in the ORC subsystem and the SCWO system, and the utilization of low-grade energy is completed.
CO exiting regenerator 27 # 5 2 Is divided into two parts, one part flows into a 3# condenser 28 to provide heat for a user, then is compressed by a 2# compressor 5, then flows into a 5# heat regenerator 27 to absorb heat, then flows into a 4# heat regenerator 26 to absorb heat, and the other part flows into a 1# compressor 1 to be compressed and then flows into the 4# heat regenerator 26 and the front CO 2 The mixing, through controlling two parts energy distribution, solve the user and use the hot problem, accomplish the utilization to low grade energy.
The working medium from the supercritical water oxidation reactor passes through the No. 2 expander 2 and the No. 2 condenser 21 in sequence, so that energy is converted into electric energy and heat energy which are provided for users, and the utilization of low-grade energy is completed;
after the gas separation device 15, CO is provided 2 Buffer tank 14 for CO generated by the reaction in supercritical water oxidation system 2 The method can be used for recycling, can be applied to a supercritical Brayton-cogeneration system as a working medium for CO 2 Reuse of CO 2 Zero emission.
In the ORC subsystem, a common heat regenerator can be added between the 1# expander 1 and the 1# condenser 18 and between the 1# working medium pump 17 and the 2# heat regenerator 19, and the heat regenerators are respectively filled with the exhaust gas of the 1# expander 1 and the liquid working medium pressurized by the 1# working medium pump 17, the liquid working medium is heated by the exhaust gas of the 1# expander 1 and then enters the 2# heat regenerator 19,1# expander 1, and the exhaust gas is cooled by the liquid working medium and then enters the 1# condenser 18, so that the energy loss of the system is reduced.
In the supercritical brayton cycle system, the 2# compressor 5 may adopt a multi-stage compression and inter-stage cooling method, taking a two-stage compressor as an illustration, after being pre-cooled by the 3# condenser 28, a part of working medium flowing out of the 5# regenerator 27 flows into the 5# regenerator 27 to absorb heat after being compressed by the two-stage compressor (low-pressure compressor-condenser intermediate cooling-high-pressure compressor), then flows into the 4# regenerator 26 to absorb heat, and other working medium flows are unchanged, as in the previous illustration. When heat supply is not needed, the circulation efficiency can be effectively improved by adopting a split-flow and multistage compression method.
The working principle and the use steps of the invention are further described below with reference to the accompanying drawings:
as shown in fig. 1, the solar heat collecting device 29 absorbs sunlight reflected by the heliostat 30, uses heat conduction oil as a transportation carrier to convert solar energy into heat energy, opens a two-way valve to input the heat conduction oil into the system, and the three-way valve can control a part of the heat conduction oil to enter the heat storage device 24 to store rich solar energy or store solar energy when other subsystems have small loads, so as to ensure changes of overcast and rainy weather, night and seasons, the system can meet the requirements of electric load and thermal load, and when the requirements are met, the 3# working medium pump 23 brings the heat conduction oil in the heat storage device 24 into the solar heat collecting device 29 and redistributes the heat conduction oil into the system; the three-way valve is controlled to transport part of heat conduction oil into the supercritical water reactor 13 to be used as an energy source of the SCWO system, and the heat conduction oil is in the supercritical stateThe heat in the water-boundary reactor 13 is partially utilized, the energy after flowing out is reduced, the heat is released through the 3# heat regenerator 20, the released heat is absorbed by the 1# heat regenerator 12 and is provided for reactants of the SCWO system, the heat conduction oil flows out of the 3# heat regenerator 20 and is released through the 2# heat regenerator 19, the heat is provided for an ORC subsystem as an energy source, finally, the heat flows through the 3# working medium pump 23 and returns to the solar heat collector 29, the next cycle is started, and the 3# working medium pump 23 drives the flow of the circulating heat conduction oil and controls the flow rate to control the energy supply of the SCWO system; controlling the three-way valve to transport part of the heat conduction oil to supercritical CO 2 In the evaporator 25, heat is released, and this part of energy is supplied to the energy source of the supercritical brayton cycle-CHP subsystem, and then flows through the working substance pump 22 # and the working substance pump 23 # in turn, and finally returns to the solar heat collector 29 to start the next cycle, and the working substance pump 22 # can control the flow of supercritical CO 2 The flow of the evaporator 25 is controlled to control the energy supply of the critical brayton cycle.
In the SCWO system, after entering the system, air is divided into two parts, one part of air pushes the 5# compressor 8, the 5# compressor 8 drives the booster pump 11 to pressurize sewage flowing out of the sewage buffer tank 10, the pressure condition of supercritical water oxidation reaction is achieved, in order to save the power consumption of the compressor, the other part of air firstly enters the 4# compressor 7 for compression, the air flowing out of the 4# compressor 7 is firstly cooled through the 4# condenser 31 and then compressed through the 3# compressor 6, then the air is mixed with sewage flowing out of the booster pump 11 and enters the 1# regenerator 12 to absorb heat, the heat released by the 3# regenerator 20 is reused, so that reactants reach high temperature and high pressure and meet the reaction condition of supercritical water oxidation, and the reactants enter the supercritical water reactor 13 for reaction. Solid inorganic salt and other heavy metals generated by the reaction are discharged into a slag storage tank 32 for treatment, high-temperature high-pressure gas generated by the reaction enters a No. 2 expander 2 through a pipeline to do work, then the heat is released through a No. 2 condenser 21, water vapor is condensed into liquid water, the released heat can solve the heat consumption problem of a user, the gas and the water coming out of the No. 2 condenser 21 are separated in a gas-liquid separation device 16, the water at the moment can solve the water consumption problem of the user after being treated by a supercritical water oxidation technology, the liquid is separated by a gas separation device 15,CO in the product 2 Is discharged to CO 2 The gas can be reused in the storage tank 14 as working medium of other subsystems or used for other purposes, and the other separated gas is N 2 And harmless gas is discharged into the atmosphere.
In the ORC subsystem, a working medium is compressed and driven by a No. 1 working medium pump 17, low-grade heat of heat conduction oil flowing out of a supercritical water reactor 13 is reused through a No. 2 heat regenerator 19, the heat is absorbed and then enters a No. 1 expander 1 to expand and do work, the output work of the No. 1 expander 1 is used for driving a compressor and power generation equipment in the system to generate power, then enters a No. 1 condenser 18 to release heat, the released heat can solve the heat consumption problem of a user, and the working medium flows out of the No. 1 condenser 18 and returns to the No. 1 working medium pump 17 to start the next cycle. Meanwhile, as a preferred embodiment, a common regenerator may be added between the 1# expander 1 and the 1# condenser 18, between the 1# working medium pump 17 and the 2# regenerator 19, and the exhaust gas of the 1# expander 1 and the liquid working medium pressurized by the 1# working medium pump 17 are respectively introduced into the regenerators, and the liquid working medium is heated by the exhaust gas of the 1# expander 1 and then enters the 2# regenerator 19,1# expander 1, and the exhaust gas is cooled by the liquid working medium and then enters the 1# condenser 18.
In the supercritical brayton cycle-cogeneration subsystem, CO 2 Working medium is exemplified by higher pressure CO 2 The heat absorbed by the heat conducting oil in the evaporator 25 reaches a supercritical state, the heat enters the 3# expander 3 to do work, the output work of the 3# expander 3 is used for driving a compressor and power generation equipment in the system to generate power, then the heat enters the 4# heat regenerator 26 and the 5# heat regenerator 27 in sequence, the working medium discharged from the 5# heat regenerator 27 is divided into two flow channels, a part of the working medium flows through the 1# compressor 4 to raise the compression pressure, the heat is firstly cooled and released through the 3# condenser 28 to provide the heat for a user, then flows through the 2# compressor 5 to raise the compression pressure, then flows into the 5# heat regenerator 27 to absorb the heat released before, the two working mediums are mixed again after the completion and enter the 4# heat regenerator 26 to absorb the heat released before, and at the moment, CO 2 And back to the high pressure state and back into the evaporator 25 to begin the next cycle. The present invention can adjust the flow rate into the 3# condenser 28 according to the amount of heat required from the user. At the same time, to cope with the situation that the user has no heat demand, to improve the circulation efficiencyThe 2# compressor 5 can adopt a multi-stage compression and inter-stage cooling method, taking a two-stage compressor as an illustration, after the pre-cooling of the 3# condenser 28, a part of working medium flowing out of the 5# regenerator 27 flows into the 5# regenerator 27 to absorb heat after being compressed by the two-stage compressor (low-pressure compressor-condenser intermediate cooling-high-pressure compressor), then flows into the 4# regenerator 26 to absorb heat, and other working medium flows are unchanged, so that the flow of the other working mediums is the same as that of the previous illustration.
In the invention, the change of certain parameters can affect the whole system, such as the change of sewage flow, directly affects the power of the supercritical reactor 13, so that the energy entering the supercritical brayton cycle-cogeneration subsystem through the evaporator 25 is changed, the change of the output power of the expander 3 is affected, and the change of the output power of the expander 2 is also caused, which fully shows the variability of the system.
In summary, the invention stores a portion of the solar energy converted thermal energy as a backup, a portion of the energy for supercritical brayton cycle-CHP, and a portion of the energy for supercritical water oxidation systems. Solar energy is utilized to be combined with sewage treatment, a supercritical Brayton cycle-CHP subsystem, an SCWO subsystem and an ORC-CHP subsystem are coupled, unified management is carried out, the power output of each subsystem is coordinated and controlled through adjusting parameters, all subsystems are mutually influenced, the supercritical water oxidation technology is utilized to efficiently clean sewage treatment, solar energy is reasonably distributed, and meanwhile the problems of electricity consumption, heat consumption and water consumption of users are solved.
Claims (5)
1. The utility model provides a heat-electricity-clean water cogeneration system based on solar energy utilization, includes solar collector (29), its characterized in that, the export of solar collector (29) divide into three flow paths:
the first strip is connected with a heat storage device (24), an outlet of the heat storage device (24) is connected with a No. 3 working medium pump (23), and the No. 3 working medium pump (23) is connected with a solar heat collection device (29) to complete one cycle;
the second heat source measuring inlet connected with the supercritical water reactor (13), the heat source measuring outlet of the supercritical water reactor (13) is connected with the heat source side inlet of the 3# heat regenerator (20), the heat source side outlet of the 3# heat regenerator (20) is connected with the heat source side inlet of the 2# heat regenerator (19), the heat source side outlet of the 2# heat regenerator (19) is connected with the 3# working medium pump (23), and the 3# working medium pump (23) is connected with the solar heat collecting device (29) to complete a cycle;
the third heat source measuring port connected with the evaporator (25), the heat source measuring port of the evaporator (25) is connected with a No. 2 working medium pump (22), the No. 2 working medium pump (22) is connected with a No. 3 working medium pump (23), and the No. 3 working medium pump (23) is connected with a solar heat collecting device (29) to complete a cycle;
the working medium inlet end of the supercritical water reactor (13) is connected with the working medium outlet of the No. 1 heat regenerator (12), and the working medium inlet of the No. 1 heat regenerator (12) is divided into two branches: the first is connected with an oxidizing gas inlet through a multistage compression-interstage cooling structure II, the second is connected with a sewage buffer tank (10) through a booster pump (11), a slag discharging port of a supercritical water reactor (13) is connected with a slag storage tank (32), a cold source measuring port of the supercritical water reactor (13) is connected with an inlet of a No. 2 expander (2), an outlet of the No. 2 expander (2) is connected with an inlet of a No. 2 condenser (21), heat discharged by the No. 2 condenser (21) is supplied to a hot user, an outlet of the No. 2 condenser is connected with a gas-liquid separation device (16), a gas outlet of the gas-liquid separation device (16) is connected with the gas separation device (15), and CO is completed in the gas separation device (15) 2 The liquid outlet of the gas-liquid separation device (16) is a clean water outlet, thereby forming an SCWO subsystem;
the multistage compression-interstage cooling structure II comprises a 3# compressor (6), wherein an outlet of the 3# compressor (6) is connected with a working medium inlet of a 1# regenerator (12), an inlet of the 3# compressor (6) is connected with a 4# condenser (31), an inlet of the 4# condenser (31) is connected with an outlet of a 4# compressor (7), an inlet of the 4# compressor (7) is connected with an oxidizing gas inlet, the booster pump (11) is connected with a gas outlet of a 5# compressor (8), and an inlet of the 5# compressor (8) is connected with an oxidizing gas inlet; the medium outlet of the No. 1 heat regenerator (12) is connected with the cold source side inlet of the No. 3 heat regenerator (20), the medium inlet of the No. 1 heat regenerator (12) is connected with the cold source side outlet of the No. 3 heat regenerator (20), and the No. 1 heat regenerator (12) and the No. 3 heat regenerator (20) absorb heat and release heat to complete a cycle;
the cold source side inlet of the No. 2 heat regenerator (19) is connected with the outlet of the No. 1 working medium pump (17), the cold source side outlet of the No. 2 heat regenerator (19) is connected with the inlet of the No. 1 expander (1), the outlet of the No. 1 expander (1) is connected with the inlet of the No. 1 condenser (18), the heat discharged by the No. 1 condenser (18) is supplied to a heat user, and the outlet of the No. 1 expander is connected with the inlet of the No. 1 working medium pump (17) to complete one cycle, so that an ORC subsystem is formed, and working mediums of the ORC subsystem are R123, R245fa or R134a or mixed working mediums formed by mixing more than two pure organic matters;
in the ORC subsystem, a common heat regenerator is added between a 1# expander (1) and a 1# condenser (18) and between a 1# working medium pump (17) and a 2# heat regenerator (19), the heat regenerators are respectively filled with liquid working medium after the exhaust gas of the 1# expander (1) and the 1# working medium pump (17) are pressurized, the liquid working medium is heated by the exhaust gas of the 1# expander (1) and then enters the 2# heat regenerator (19), and the exhaust gas of the 1# expander (1) is cooled by the liquid working medium and then enters the 1# condenser (18).
2. The cogeneration system of claim 1, characterized in that the cold source side outlet of the evaporator (25) is connected to the inlet of the 3# expander (3), the outlet of the 3# expander (3) is connected to the heat source side inlet of the 4# regenerator (26), the heat source side outlet of the 4# regenerator (26) is connected to the heat source side inlet of the 5# regenerator (27), the heat source side outlet of the 5# regenerator (27) is divided into two branches, one branch is connected to the inlet of the 1# compressor (4), the outlet of the 1# compressor (4) is connected to the heat source side inlet of the 4# regenerator (26), the other branch is connected to the heat source side inlet of the 6# regenerator (28), the heat source side outlet of the 6# regenerator (28) is connected to the inlet of the 2# compressor (5), the outlet of the 2# compressor (5) is connected to the heat source side inlet of the 5# regenerator (27), the heat source side outlet of the 5# regenerator (27) is connected to the heat source side inlet of the 4# regenerator (26), and the heat source side outlet of the 4# regenerator (26) is connected to the heat source side inlet of the 4# regenerator (26), and the heat source is circulated by the supercritical heat and the heat and cold source is circulated through the cold source side of the heat and the heat cogeneration system.
3. The solar energy utilization-based thermo-electric-clean water cogeneration system of claim 2, wherein said 2# compressor (5) can be a multi-stage compression-inter-stage cooling structure.
4. A solar energy utilization-based combined heat and power generation system according to claim 2 or 3, wherein the No. 1 compressor (4) is a low-pressure compressor, the No. 2 compressor (5) is a high-pressure compressor, and the working medium of the supercritical brayton cycle-combined heat and power generation subsystem is supercritical CO 2 。
5. The cogeneration system based on solar energy utilization of claim 1, wherein each expander and compressor is coaxially connected to a power plant (9).
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850901A (en) * | 2014-03-31 | 2014-06-11 | 中国能建集团装备有限公司南京技术中心 | Solar cogeneration system and method based on double-working medium thermodynamic cycle |
| KR20150094190A (en) * | 2014-02-10 | 2015-08-19 | 김영선 | Combined cogeneration Organic Rankine cycle electricity generation system |
| KR20150109102A (en) * | 2014-03-19 | 2015-10-01 | 김영선 | Organic Rankine Cycle electricity generation system |
| CN105715470A (en) * | 2016-03-16 | 2016-06-29 | 碧海舟（北京）节能环保装备有限公司 | Natural gas pressure regulation station and solar comprehensive power generation system |
| CN206033359U (en) * | 2016-09-14 | 2017-03-22 | 西安热工研究院有限公司 | Electricity generation of super supercritical carbon dioxide brayton cycle waste water treatment's coupled system |
| CN107940789A (en) * | 2017-11-23 | 2018-04-20 | 辽宁工程技术大学 | A kind of new cool and thermal power combined generating system based on movable solar energy heat collector |
| CN108775266A (en) * | 2018-06-11 | 2018-11-09 | 山东理工大学 | A kind of critical-cross carbon dioxide power cycle for high-temperature flue gas waste heat recovery and the compound co-generation unit of absorption heat pump |
| CN108952865A (en) * | 2018-06-04 | 2018-12-07 | 东南大学 | The overcritical hydro-thermal burning of coal recycles the electricity generation system coupled with supercritical carbon dioxide |
| CN109538355A (en) * | 2018-12-29 | 2019-03-29 | 国电环境保护研究院有限公司 | The combined cycle power plant of tower type solar heating compressor inlet air |
| CN111287813A (en) * | 2020-02-26 | 2020-06-16 | 中国华能集团清洁能源技术研究院有限公司 | Solar supercritical carbon dioxide triple-cycle power generation system and method |
| CN111306830A (en) * | 2019-11-20 | 2020-06-19 | 中国科学院广州能源研究所 | Jet organic Rankine flash evaporation combined cooling and power system |
| CN111473540A (en) * | 2020-05-25 | 2020-07-31 | 广东海洋大学 | Ship waste heat driven CO2Supercritical power generation coupling transcritical refrigeration cycle system |
-
2020
- 2020-08-06 CN CN202010785791.9A patent/CN111852798B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150094190A (en) * | 2014-02-10 | 2015-08-19 | 김영선 | Combined cogeneration Organic Rankine cycle electricity generation system |
| KR20150109102A (en) * | 2014-03-19 | 2015-10-01 | 김영선 | Organic Rankine Cycle electricity generation system |
| CN103850901A (en) * | 2014-03-31 | 2014-06-11 | 中国能建集团装备有限公司南京技术中心 | Solar cogeneration system and method based on double-working medium thermodynamic cycle |
| CN105715470A (en) * | 2016-03-16 | 2016-06-29 | 碧海舟（北京）节能环保装备有限公司 | Natural gas pressure regulation station and solar comprehensive power generation system |
| CN206033359U (en) * | 2016-09-14 | 2017-03-22 | 西安热工研究院有限公司 | Electricity generation of super supercritical carbon dioxide brayton cycle waste water treatment's coupled system |
| CN107940789A (en) * | 2017-11-23 | 2018-04-20 | 辽宁工程技术大学 | A kind of new cool and thermal power combined generating system based on movable solar energy heat collector |
| CN108952865A (en) * | 2018-06-04 | 2018-12-07 | 东南大学 | The overcritical hydro-thermal burning of coal recycles the electricity generation system coupled with supercritical carbon dioxide |
| CN108775266A (en) * | 2018-06-11 | 2018-11-09 | 山东理工大学 | A kind of critical-cross carbon dioxide power cycle for high-temperature flue gas waste heat recovery and the compound co-generation unit of absorption heat pump |
| CN109538355A (en) * | 2018-12-29 | 2019-03-29 | 国电环境保护研究院有限公司 | The combined cycle power plant of tower type solar heating compressor inlet air |
| CN111306830A (en) * | 2019-11-20 | 2020-06-19 | 中国科学院广州能源研究所 | Jet organic Rankine flash evaporation combined cooling and power system |
| CN111287813A (en) * | 2020-02-26 | 2020-06-16 | 中国华能集团清洁能源技术研究院有限公司 | Solar supercritical carbon dioxide triple-cycle power generation system and method |
| CN111473540A (en) * | 2020-05-25 | 2020-07-31 | 广东海洋大学 | Ship waste heat driven CO2Supercritical power generation coupling transcritical refrigeration cycle system |
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|---|---|
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