WO2022007374A1 - Cycle combiné de fluide de travail unique de second type - Google Patents

Cycle combiné de fluide de travail unique de second type Download PDF

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WO2022007374A1
WO2022007374A1 PCT/CN2021/000143 CN2021000143W WO2022007374A1 WO 2022007374 A1 WO2022007374 A1 WO 2022007374A1 CN 2021000143 W CN2021000143 W CN 2021000143W WO 2022007374 A1 WO2022007374 A1 WO 2022007374A1
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working fluid
kilogram
working
exothermic
boosting
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PCT/CN2021/000143
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English (en)
Chinese (zh)
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李华玉
李鸿瑞
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李华玉
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Publication of WO2022007374A1 publication Critical patent/WO2022007374A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the invention belongs to the technical field of thermodynamics and heating.
  • thermodynamic cycle In the basic theoretical system of thermal science, the creation, development and application of thermodynamic cycle will play a major role in the scientific production and utilization of energy, and will actively promote social progress and productivity development. Aiming at the variable-temperature type medium-temperature heat resource and high-temperature heat demand, and considering the simultaneous use of power drive or taking into account the power demand, the present invention proposes to use the phase change process or the phase change process as the main method to realize low temperature heat release, and the use of the temperature change process or the temperature change process as It mainly realizes heat absorption at medium temperature, adopts temperature change process to realize high temperature heat supply, and adopts the second type of single working medium combined cycle with mixed heat exchange technology measures.
  • the main purpose of the present invention is to provide the second type of single working substance combined cycle, and the specific content of the invention is described as follows:
  • the second type of single working fluid combined cycle refers to twelve processes carried out by M 1 kg, M 2 kg and H kg working fluids, respectively or jointly - the M 1 kg working fluid boosting process 12, M 1 Kilogram working medium endothermic vaporization process 23, H kg working medium boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic process g8, M 2 kg working medium boosting process 83, M 3 kg working medium absorption process Thermal process 34, M 3 kg working fluid boosting process 45, M 3 kg working fluid exothermic process 56, M 3 kg working fluid depressurization process 67, M 3 kg working fluid mixed with H kg working fluid exothermic process 78, (M 1 +H) kilogram working fluid depressurization process 89, (M 1 +H) kilogram working fluid exothermic condensation process 91—a closed process composed; wherein, M 3 is the sum of M 1 and M 2 .
  • the second type of single working fluid combined cycle refers to thirteen processes carried out by M 1 kg, M 2 kg and H kg working fluids, respectively or jointly - the M 1 kg working fluid boosting process 12, M 1 Kilogram working medium endothermic vaporization process 25, H kg working medium boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic process g9, M 2 kg working medium boosting process 93, M 2 kg working medium absorption process Thermal process 34, M 2 kg working fluid boosting process 45, M 3 kg working fluid boosting process 56, M 3 kg working fluid exothermic process 67, M 3 kg working fluid depressurization process 78, M 3 kg working fluid and H kilogram working fluid mixing exothermic process 89, (M 1 +H) kilogram working fluid depressurization process 9c, (M 1 +H) kilogram working fluid exothermic condensation process c1—a closed process composed of; wherein, M 3 is M 1 and M 2 sum.
  • the second type of single working fluid combined cycle refers to thirteen processes carried out by M 1 kg, M 2 kg and H kg working fluids, respectively or jointly - the M 1 kg working fluid boosting process 12, M 1 Kilogram working medium endothermic vaporization process 24, H kg working medium boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic process g9, M 2 kg working medium boosting process 93, M 2 kg working medium absorption process Thermal process 35, M 1 kg working fluid boosting process 45, M 3 kg working fluid boosting process 56, M 3 kg working fluid exothermic process 67, M 3 kg working fluid depressurization process 78, M 3 kg working fluid and H kilogram working fluid mixing exothermic process 89, (M 1 +H) kilogram working fluid depressurization process 9c, (M 1 +H) kilogram working fluid exothermic condensation process c1—a closed process composed of; wherein, M 3 is M 1 and M 2 sum.
  • the second type of single working fluid combined cycle refers to fifteen processes carried out separately or jointly by M 1 kg, M 2 kg and H kg working fluids - M 1 kg working fluid boosting process 12, M 1 Kilogram working medium endothermic vaporization process 23, H kg working medium boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic process gc, M 2 kg working medium boosting process c3, M 3 kg working medium absorption process Thermal process 34, M 3 kg working fluid boost process 45, M 3 kg working fluid exothermic process 56, X kg working fluid depressurization process 67, (M 3 -X) kg working fluid exothermic process 68, (M 3 -X) kilogram working medium depressurization process 89, X kilogram working medium exothermic process 79, M 3 kilogram working medium mixed with H kilogram working medium and exothermic process 9c, (M 1 +H) kilogram working medium depressurization process cd, (M 1 +H) Kilogram working substance exothermic condensation process d1—a closed process of composition; wherein
  • the second type of single working fluid combined cycle refers to the sixteen processes carried out by M 1 kg, M 2 kg and H kg working fluids, respectively or jointly—M 1 kg working fluid boosting process 12, M 1 Kilogram endothermic vaporization process 23, M 1 kg working fluid boosting process 34, M 1 kg working fluid exothermic process 45, M 1 kg working fluid depressurization 56, M 1 kg working fluid exothermic process 6d, H Kilogram working medium boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic process ge, M 2 kg working medium boosting process e7, M 2 kg working medium endothermic process 78, M 2 kg working medium liter Pressing process 89, M 2 kg working fluid exothermic process 9c, M 2 kg working fluid depressurization process cd, M 3 kg working fluid mixed with H kg working fluid Exothermic process de, (M 1 +H) kg working fluid drop Pressing process ef, (M 1 +H) kilogram working fluid exothermic condensation process f1 - a closed process of composition; wherein
  • the second type of single working fluid combined cycle refers to fifteen processes carried out by M 1 kg, M 2 kg and H kg working fluids, respectively or jointly—M 1 kg working fluid boosting process 12, M 1 Kilogram working medium endothermic process 2b, (M 1 +M) kg working medium endothermic vaporization process b3, H kg working medium boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic process g8, M 2 Kilogram working medium boosting process 8a, M kg working medium exothermic condensation process ab, (M 2 -M) kg working medium boosting process a3, M 3 kg working medium endothermic process 34, M 3 kg working medium boosting process 45, M 3 kg working medium exothermic process 56, M 3 kg working medium depressurization process 67, M 3 kg working medium mixed with H kg working medium Exothermic process 78, (M 1 +H) kg working medium depressurization process 89, (M 1 +H) kilogram working fluid exothermic condensation process 91 - a closed process of composition; wherein, M 3 is
  • the second type of single working fluid combined cycle refers to the sixteen processes carried out by M 1 kg, M 2 kg and H kg working fluids, respectively or jointly—M 1 kg working fluid boosting process 12, M 1 Kilogram endothermic process 2b, H kg working medium boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic process g9, M 2 kg working medium boosting process 9a, M kg working medium exothermic condensation Process ab, (M 2 -M) kilogram working fluid boosting process a3, (M 2 -M) kilogram working fluid endothermic process 34, (M 1 +M) kilogram working fluid endothermic vaporization process b5, (M 2 - M) Kilogram working medium boosting process 45, M 3 kg working medium boosting process 56, M 3 kg working medium exothermic process 67, M 3 kg working medium depressurization process 78, M 3 kg working medium and H Kilogram working medium Mixing exothermic process 89, (M 1 +H) kilogram working fluid depressurization process 9c, (M 1 +H) kilogram working
  • the second type of single working fluid combined cycle refers to the sixteen processes carried out by M 1 kg, M 2 kg and H kg working fluids, respectively or jointly—M 1 kg working fluid boosting process 12, M 1 Kilogram endothermic process 2b, H kg working medium boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic process g9, M 2 kg working medium boosting process 9a, M kg working medium exothermic condensation Process ab, (M 2 -M) kilogram working fluid boosting process a3, (M 1 +M) kilogram working fluid endothermic vaporization process b4, (M 2 -M) kilogram working fluid endothermic process 35, (M 1 + M) Kilogram working medium boosting process 45, M 3 kg working medium boosting process 56, M 3 kg working medium exothermic process 67, M 3 kg working medium depressurization process 78, M 3 kg working medium and H Kilogram working medium Mixing exothermic process 89, (M 1 +H) kilogram working fluid depressurization process 9c, (M 1 +H) kilogram working fluid
  • the second type of single working fluid combined cycle refers to eighteen processes carried out by M 1 kg, M 2 kg and H kg working fluids, respectively or jointly - the M 1 kg working fluid boosting process 12, M 1 Kilogram working medium endothermic process 2b, (M 1 +M) kg working medium endothermic vaporization process b3, H kg working medium boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic process gc, M 2 Kilogram working medium boosting process ca, M kg working medium exothermic condensation process ab, (M 2 -M) kg working medium boosting process a3, M 3 kg working medium endothermic process 34, M 3 kg working medium boosting process 45, M 3 kg working medium exothermic process 56, X kg working medium depressurization process 67, (M 3 -X) kg working medium exothermic process 68, (M 3 -X) kg working medium depressurization process 89, X Kilogram working fluid exothermic process 79, M 3 kilogram working fluid mixed with H kilogram working fluid exothermic
  • the second type of single working fluid combined cycle refers to nineteen processes carried out by M 1 kg, M 2 kg and H kg working fluids, respectively or jointly—M 1 kg working fluid boosting process 12, M 1 Kilogram working medium endothermic process 2b, (M 1 +M) kilogram working medium endothermic vaporization process b3, (M 1 +M) kilogram working medium boosting process 34, (M 1 +M) kilogram working medium exothermic process 45 , (M 1 +M) kilogram working fluid is depressurized by 56, (M 1 +M) kilogram working fluid exothermic process 6d, H kilogram working fluid boosting process 1g, H kilogram working fluid is mixed with M 3 kilogram working fluid to absorb Thermal process ge, M 2 kg working fluid boosting process ea, M kg working fluid exothermic condensation process ab, (M 2 -M) kg working fluid boosting process a7, (M 2 -M) kg working fluid endothermic process 78, (M 2 -M) kilogram working fluid boosting process 89, (M 2 -M) kilogram working fluid exothermic
  • Fig. 1/10 is an example diagram of the first principle flow chart of the second type of single working fluid combined cycle provided according to the present invention.
  • Fig. 2/10 is an example diagram of the second principle flow chart of the second type of single working fluid combined cycle provided according to the present invention.
  • Fig. 3/10 is an example diagram of the third principle flow chart of the second type of single working fluid combined cycle provided according to the present invention.
  • FIG. 4/10 is an example diagram of the fourth principle flow chart of the second type of single working fluid combined cycle provided according to the present invention.
  • Fig. 5/10 is an example flow chart of the fifth principle of the second type of single working fluid combined cycle provided according to the present invention.
  • FIG. 6/10 is an example diagram of the sixth principle flow chart of the second type of single working fluid combined cycle provided according to the present invention.
  • Fig. 7/10 is an example diagram of the seventh principle flow chart of the second type of single working fluid combined cycle provided according to the present invention.
  • Figure 8/10 is an example diagram of the eighth principle flow chart of the second type of single working fluid combined cycle provided according to the present invention.
  • Fig. 9/10 is an example diagram of the ninth principle flow chart of the second type of single working fluid combined cycle provided according to the present invention.
  • Fig. 10/10 is an example diagram of the tenth principle flow chart of the second type of single working substance combined cycle provided according to the present invention.
  • M 3 is the sum of M 1 and M 2 ; Examples are given to describe the invention in detail.
  • Working medium is carried out - M 1 kg working fluid condensate boosting process 12, M 1 kg working fluid endothermic heating, vaporization and superheating process 23, H kg working fluid condensate boosting process 1g, H kg working fluid and M 3 Kilogram working medium mixed endothermic heating, vaporization and superheating process g8, M 2 kilogram working medium pressure boosting and heating process 83, M 3 kilogram working medium endothermic heating process 34, M 3 kilogram working medium pressure boosting and heating process 45, M 3 kilogram Working medium exothermic cooling process 56, M 3 kg working medium is depressurized and expanded 67, M 3 kg working medium is mixed with H kg working medium, exothermic cooling process 78, (M 1 +H) kg working medium Depressurization and expansion process 89 , (M 1 +H) kilogram working fluid exothermic condensation process 91 - a total of 12 processes.
  • Endothermic process - the endothermic process of H kg working medium for g8 process is completed by the exothermic process in the mixing process of M 3 kg working medium and H kg working medium; M 1 kg working medium for 23 process and M 3 kg working medium
  • the endothermic heat is generally provided by an external heat source; wherein, M 3 kg of working medium is endothermic in the high temperature section of the process 34, and can also be provided by the low temperature section of the exothermic process 56.
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium, and the boosting process 1 g of H kg working medium are generally completed by the circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • M 2 kg bootstrapping working fluid 83, and the working medium M 3 kg boosting process 45, is generally accomplished by the compressor;
  • the working fluid depressurization and expansion process 89 is generally completed by an expander; the depressurization expansion work is used for the boosting power consumption, or when the depressurizing expansion work is greater than the boosting power consumption, the external mechanical energy is simultaneously output, or the depressurizing expansion work is less than When boosting power consumption, external mechanical energy is input at the same time, forming the second type of single working substance combined cycle.
  • Working medium is carried out - M 1 kg working fluid condensate boosting process 12, M 1 kg working fluid endothermic heating, vaporization and superheating process 25, H kg working fluid condensate boosting process 1g, H kg working fluid and M 3 Kilogram working medium mixed endothermic heating, vaporization and superheating process g9, M 2 kilogram working medium pressure boosting and heating process 93, M 2 kilogram working medium endothermic heating process 34, M 2 kilogram working medium pressure boosting and heating process 45, M 3 kilogram Working medium pressure rise and temperature rise process 56, M 3 kilograms of working medium exothermic cooling process 67, M 3 kilograms of working medium depressurization and expansion process 78, M 3 kilograms of working medium and 3 kilograms of working medium are mixed with exothermic cooling process 89, (M 1 +H) Kilogram working medium pressure reduction expansion process 9c, (M 1 +H) Kilogram working medium exothermic condensation process c1 - a total of 13 processes.
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium, and the boosting process 1 g of H kg working medium are generally completed by the circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • the boosting processes 93 and 45 of M 2 kilograms of working fluid, and the boosting process 56 of M 3 kilograms of working fluid are generally completed by the compressor;
  • the depressurization and expansion process 9c of kilogram working medium is generally completed by an expander;
  • Working medium is carried out - M 1 kg working fluid condensate boosting process 12, M 1 kg working fluid endothermic heating, vaporization and superheating process 24, H kg working fluid condensate boosting process 1g, H kg working fluid and M 3 Kilogram working medium mixed endothermic heating, vaporization and superheating process g9, M 2 kilogram working medium pressure boosting and heating process 93, M 2 kilogram working medium endothermic heating process 35, M 1 kilogram working medium pressure boosting heating process 45, M 3 kilogram Working medium pressure rise and temperature rise process 56, M 3 kilograms of working medium exothermic cooling process 67, M 3 kilograms of working medium depressurization and expansion process 78, M 3 kilograms of working medium and 3 kilograms of working medium are mixed with exothermic cooling process 89, (M 1 +H) Kilogram working medium pressure reduction expansion process 9c, (M 1 +H) Kilogram working medium exothermic condensation process c1 - a total of 13 processes.
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium, and the boosting process 1 g of H kg working medium are generally completed by the circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • M 1 kilogram bootstrapping working fluid 45, M 2 kilogram bootstrapping working fluid 93, and the working medium M 3 kilogram boosting process 56 is generally accomplished by the compressor;
  • M 3 kilogram expanded working fluid buck Process 78, and (M 1 +H) kilogram working fluid pressure reduction and expansion process 9c, are generally completed by an expander;
  • Mechanical energy is output externally, or when the pressure reduction expansion work is less than the boost pressure power consumption, mechanical energy is input from the outside at the same time, forming the second type of single working substance combined cycle.
  • Working medium is carried out - M 1 kg working fluid condensate boosting process 12, M 1 kg working fluid endothermic heating, vaporization and superheating process 23, H kg working fluid condensate boosting process 1g, H kg working fluid and M 3 kg mixed refrigerant absorbs heat heating, vaporization and superheating process gc, M 2 kg refrigerant boost heating process c3, M 3 kg refrigerant endothermic heating process 34, M 3 kg refrigerant boost heating process 45, M 3 kg Working fluid exothermic cooling process 56, X kilogram working fluid pressure reduction and expansion process 67, (M 3 -X) kilogram working fluid exothermic cooling process 68, (M 3 -X) kilogram working fluid pressure reduction expansion process 89, X kilogram Working medium exothermic cooling process 79, M 3 kg working medium mixed with H kg working medium, exothermic cooling process 9c, (M 1 +H) kg working medium pressure reduction and expansion process cd, (M 1 +H) kg working medium put Thermal condensation process d1 - a total
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium, and the boosting process 1 g of H kg working medium are generally completed by the circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • M 2 kg of refrigerant bootstrapping c3, and M 3 45 kg bootstrapping refrigerant is generally accomplished by the compressor;
  • the pressure process 89, and the pressure reduction and expansion process cd of (M 1 +H) kilograms of working fluid are generally completed by the expander;
  • external mechanical energy is output, or when the pressure-reducing expansion work is less than the pressure-boosting power consumption, mechanical energy is input from the outside at the same time, forming the second type of single working fluid combined cycle.
  • Working medium is carried out - M 1 kg working medium condensate boosting process 12, M 1 kg working medium endothermic heating, vaporization and superheating process 23, M 1 kg working medium boosting and heating process 34, M 1 kg working medium exothermic Cooling process 45, M 1 kg working fluid depressurization and expansion process 56, M 1 kg working fluid exothermic cooling process 6d, H kg working fluid condensate boosting process 1 g, H kg working fluid mixed with M 3 kg working fluid to absorb heat heating, vaporization and superheating process ge, M 2 kilogram booster working fluid heating process e7, M 2 kilogram refrigerant endothermic heating process 78, M 2 kilogram booster working fluid heating process 89, M 2 kilogram refrigerant heat cooling process 9c, M 2 kg working medium decompression and expansion process cd, M 3 kg working medium mixed with H kg working medium and exothermic cooling process de, (M 1 +H) kg working medium Depressurization and expansion process ef, (M 1 +H ) Kg working medium exothermic condensation process
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium, and the boosting process 1 g of H kg working medium are generally completed by the circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • M 2 kilogram refrigerants bootstrapping e7 and 89, and the working medium M 1 kilogram of bootstrapping 34, is generally accomplished by the compressor;
  • M 1 kilogram of working fluid 56 is down process, the working medium M 2 kilogram drop
  • the pressure reduction process cd, and the (M 1 +H) kilogram working fluid pressure reduction and expansion process ef are generally completed by the expander;
  • external mechanical energy is output, or when the pressure-reducing expansion work is less than the pressure-boosting power consumption, mechanical energy is input from the outside at the same time, forming the second type of single working fluid combined cycle.
  • Working medium is carried out - M 1 kg working medium condensate boosting process 12, M 1 kg working medium is mixed with M kg superheated steam, endothermic heating process 2b, (M 1 +M) kg working medium endothermic heating, vaporization and superheating Process b3, H kg working fluid condensate boosting process 1g, H kg working fluid mixed with M 3 kg working fluid Endothermic heating, vaporization and superheating process g8, M 2 kg working fluid boosting and heating process 8a, M kg working fluid Mixing with M 1 kilogram of working medium exothermic condensation process ab, (M 2 -M) kilogram of working medium pressure rise and temperature process a3, M 3 kilogram of working medium endothermic temperature rise process 34, M 3 kilogram of working medium pressure increase and temperature rise process 45, M 3 kg working fluid exothermic cooling process 56, M 3 kg working fluid decompression and expansion process 67, M 3 kg working fluid mixed with H kg working fluid Exothermic cooling process 78, (M 1 +H) kg working fluid depressurization Expansion process 89,
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium, and the boosting process 1 g of H kg working medium are generally completed by the circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • the depressurization and expansion process 67 and the (M 1 +H) kilogram working fluid depressurization and expansion process 89 are generally completed by an expander;
  • the working medium is carried out—the M 1 kg working medium condensate pressurization process 12, the mixing endothermic heating process 2b of the M 1 kg working medium and the M kg working medium, the (M 1 +M) kg working medium endothermic heating, vaporization and Overheating process b5, H kg working fluid condensate boosting process 1g, H kg working fluid mixed with M 3 kg working fluid and endothermic heating, vaporization and superheating process g9, M 2 kg working fluid boosting and heating process 9a, M kg working fluid Mixing exothermic condensation process ab of mass and M 1 kg working substance, (M 2 -M) kg working substance boosting and heating process a3, (M 2 -M) kg working substance endothermic heating process 34, (M 2 -M ) kg refrigerant boost heating process 45, M 3 kg refrigerant boost heating process 56, M 3 kg refrigerant heat cooling process 67, M 3 kg refrigerant expansion process down 78, M 3 kg working fluid with H Kilogram working fluid mixing and exother
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium, and the boosting process 1 g of H kg working medium are generally completed by the circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • M 2 kg of refrigerant bootstrapping 9a, (M 2 -M) kg refrigerants bootstrapping a3 and 45, and the working medium M 3 kg boosting process 56, is generally accomplished by the compressor;
  • the depressurization and expansion process 78 of the working fluid, and the depressurization and expansion process 9c of the (M 1 +H) kilogram working fluid are generally completed by an expander;
  • When boosting power consumption external mechanical energy is output at the same time, or when the step-down expansion work is less than the boosting power consumption, mechanical energy is input from the outside at the same time, forming the second type of single working substance combined cycle.
  • the working medium is carried out—the M 1 kg working medium condensate pressurization process 12, the mixing endothermic heating process 2b of the M 1 kg working medium and the M kg working medium, the (M 1 +M) kg working medium endothermic heating, vaporization and Overheating process b4, H kg working fluid condensate boosting process 1g, H kg working fluid mixed with M 3 kg working fluid, endothermic heating, vaporization and superheating process g9, M 2 kg working fluid boosting and heating process 9a, M kg working fluid Mixing exothermic condensation process ab of mass and M 1 kg working medium, (M 2 -M) kg working medium pressure increasing process a3, (M 2 -M) kg working medium endothermic heating process 35, (M 1 +M ) kg refrigerant boost heating process 45, M 3 kg refrigerant boost heating process 56, M 3 kg refrigerant heat cooling process 67, M 3 kg refrigerant expansion process down 78, M 3 kg working fluid with H Kilogram working fluid mixing and exothermic cooling process
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium, and the boosting process 1 g of H kg working medium are generally completed by the circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside; M 2 kg of refrigerant bootstrapping 9a, (M 2 -M) kg working fluid boosting process a3, (M 1 + M) bootstrapping kg working fluid 45, and the working medium M 3 kg boost
  • the process 56 is generally completed by the compressor;
  • the depressurization and expansion process 78 of M 3 kilograms of working fluid, and the (M 1 +H) kilogram of working fluid depressurization and expansion process 9c are generally completed by the expander; the function of depressurization and expansion
  • the power consumption of boosting, or the work of bucking expansion is greater than the power consumption of boosting, mechanical energy is output externally, or when the work of buckling expansion is less than the power consumption of boosting, mechanical energy is input from the outside at the same time,
  • the working medium is carried out—the M 1 kg working medium condensate pressurization process 12, the mixing endothermic heating process 2b of the M 1 kg working medium and the M kg working medium, the (M 1 +M) kg working medium endothermic heating, vaporization and Overheating process b3, H kg working fluid condensate boosting process 1g, H kg working fluid mixed with M 3 kg working fluid, endothermic heating, vaporization and superheating process gc, M 2 kg working fluid boosting and heating process ca, M kg working fluid Mixing exothermic condensation process ab of mass and M 1 kilogram working medium, (M 2 -M) kilogram working medium boosting and heating process a3, M 3 kilogram working medium endothermic heating process 34, M 3 kilogram working medium boosting and heating process 45, M 3 kilograms of working medium exothermic cooling process 56, X kilograms of working medium pressure reduction expansion process 67, (M 3 -X) kilograms of working medium exothermic cooling process 68, (M 3 -X) kilograms of working medium pressure reduction expansion Process
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium, and the boosting process 1 g of H kg working medium are generally completed by the circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • the pressure reduction process 67, the pressure reduction process 89 of (M 3 -X) kilogram working fluid, and the pressure reduction and expansion process cd of (M 1 +H) kilogram working fluid are generally completed by an expander;
  • the pressure reduction expansion work is used for pressure increase Power consumption, or when the pressure reduction expansion work is greater than the pressure boost power consumption, the external mechanical energy is simultaneously output, or when the pressure reduction expansion work is less than the pressure boost power consumption, the mechanical energy is input from the outside at the same time, forming the second type of single working
  • the working medium is carried out—the M 1 kg working medium condensate pressurization process 12, the mixing endothermic heating process 2b of the M 1 kg working medium and the M kg working medium, the (M 1 +M) kg working medium endothermic heating, vaporization and Overheating process b3, (M 1 +M) kilogram working fluid pressure increase and temperature rise process 34, (M 1 +M) kilogram working fluid exothermic cooling process 45, (M 1 +M) kilogram working fluid pressure reduction and expansion process 56, ( M 1 +M) kilogram working fluid exothermic cooling process 6d, H kilogram working fluid condensate boosting process 1g, H kilogram working fluid mixed with M 3 kilogram working fluid and endothermic heating, vaporization and superheating process ge, M 2 kilogram working fluid Mass pressure boosting and heating process ea, mixed exothermic condensation process ab of M kg working fluid and M 1 kg working fluid, (M 2 -M) kg working fluid boosting and heating process a7, (M 2 -M) kg working fluid suction Thermal heating process 78, (M 2
  • (M 1 +M) kilogram working medium carries out the endothermic heat in the high temperature section of the b3 process, which can also be provided by the low temperature section of the exothermic 45 process; (M 2 -M) kilogram working medium carries out the endothermic heat in the high temperature section of the 78 process , can also be provided by the low temperature section of its exothermic 9c process.
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium, and the boosting process 1 g of H kg working medium are generally completed by the circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • the step-up process 89 of the working fluid is generally completed by the compressor;
  • the pressure reduction and expansion process ef of kilograms of working fluid is generally completed by an expander; the pressure reduction expansion work is used for boosting power consumption, or when the pressure reduction expansion work is greater than the pressure boosting power consumption, mechanical energy is output externally at the same time, or the pressure reduction expansion work
  • the temperature of thermal energy can be increased with the help of some external power, which is flexible and adaptable.
  • the phase change process or the phase change process mainly realizes low temperature heat release, which is beneficial to reduce the heat transfer temperature difference in the low temperature heat load release link and improve the cycle performance index.
  • variable temperature process or the variable temperature process mainly realizes the heat absorption at the medium temperature, which is beneficial to reduce the heat transfer temperature difference in the acquisition of the medium temperature heat load and improve the cycle performance index.
  • variable temperature releases heat, which is beneficial to reduce the heat transfer temperature difference in the heating link and realize the rationalization of the cycle performance index.
  • a single working fluid is beneficial to production and storage; reduce operating costs and improve the flexibility of cycle adjustment
  • thermodynamic cycle range for realizing temperature difference utilization is expanded, which is beneficial to better realize the efficient heat utilization of the medium-temperature heat source and the variable-medium-temperature heat source.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

Cycle combiné de fluide de travail unique de second type, se rapportant aux domaines techniques de la thermodynamique et des pompes à chaleur. Le cycle combiné de fluide de travail unique de second type se rapporte à un procédé en boucle fermée constitué de douze procédés réalisés par, séparément ou conjointement, des fluides de travail de M1 kilogrammes, M2 kilogrammes et H kilogrammes, c'est-à-dire, un procédé de mise sous pression 12 du fluide de travail de M1 kilogrammes, un processus de vaporisation endothermique 23 du fluide de travail de M1 kilogrammes, un procédé de mise sous pression 1g du fluide de travail de H kilogrammes, un procédé endothermique hybride g8 du fluide de travail de H kilogrammes et d'un fluide de travail de M3 kilogrammes, un procédé de mise sous pression 83 du fluide de travail de M2 kilogrammes, un processus endothermique 34 du fluide de travail de M3 kilogrammes, un procédé de mise sous pression 45 du fluide de travail de M3 kilogrammes, un procédé exothermique 56 du fluide de travail de M3 kilogrammes, un procédé de dépressurisation 67 du fluide de travail de M3 kilogrammes, un procédé exothermique hybride 78 du fluide de travail de M3 kilogrammes et du fluide de travail de H kilogrammes, un procédé de dépressurisation 89 d'un fluide de travail de (M1+H) kilogramme, et un processus de condensation exothermique 91 du fluide de travail de (M1+H) kilogrammes, M3 étant la somme de M1 et M2.
PCT/CN2021/000143 2020-07-07 2021-07-05 Cycle combiné de fluide de travail unique de second type WO2022007374A1 (fr)

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CN107893685A (zh) * 2016-10-12 2018-04-10 李华玉 单工质蒸汽联合循环与联合循环蒸汽动力装置
CN108119194A (zh) * 2016-12-15 2018-06-05 李华玉 三重联合循环动力装置
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CN1891981A (zh) * 2005-07-04 2007-01-10 陈培豪 热力循环和装置
GB2431968A (en) * 2005-11-04 2007-05-09 Parsons Brinckerhoff Ltd Process and plant for power generation
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