WO2022011995A1 - Cycle combiné à milieu de travail unique de second type - Google Patents

Cycle combiné à milieu de travail unique de second type Download PDF

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WO2022011995A1
WO2022011995A1 PCT/CN2021/000147 CN2021000147W WO2022011995A1 WO 2022011995 A1 WO2022011995 A1 WO 2022011995A1 CN 2021000147 W CN2021000147 W CN 2021000147W WO 2022011995 A1 WO2022011995 A1 WO 2022011995A1
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working fluid
kilogram
working
endothermic
boosting
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PCT/CN2021/000147
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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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    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
    • 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
    • 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
    • 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

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, adopts mixed heat exchange, and flexibly adapts to the second type of single working medium combined cycle of medium temperature heat source.
  • 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 the fourteen 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 2r, M 1 kg working medium depressurization process rs, M 1 kg working medium endothermic process s3, H kg working medium boosting process 1g, H kg working medium and M 3 kg working medium mixed suction process Thermal process g8, M 2 kg working fluid boosting process 83, M 3 kg working fluid endothermic process 34, M 3 kg working fluid boosting process 45, M 3 kg working fluid exothermic process 56, M 3 kg working fluid drop Pressing process 67, M 3 kilogram working medium and H kilogram working medium mixed exothermic process 78, (M 1 +H) kilogram working medium depressurization process 89, (M 1 +H) kilogram working medium exothermic condensation process 91—— A closed process of composition; where M 3 is the sum of M 1 and M 2 .
  • 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 Kg working medium endothermic vaporization process 2r, M 1 kg working medium depressurization process rs, M 1 kg working medium endothermic process s5, H kg working medium boosting process 1g, H kg working medium and M 3 kg working medium mixed suction process Thermal process g9, M 2 kg working fluid boosting process 93, M 2 kg working fluid endothermic process 34, M 2 kg working fluid boosting process 45, M 3 kg working fluid boosting process 56, M 3 kg working fluid release Thermal process 67, M 3 kg working fluid depressurization process 78, M 3 kg working fluid mixed with H kg working fluid Exothermic process 89, (M 1 +H) kg working fluid depressurization process 9c, (M 1 +H) Kilogram working fluid exothermic condensation process c1 - a closed process of composition; wherein, M 3 is the sum of M
  • 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 2r, M 1 kg working medium depressurization process rs, M 1 kg working medium endothermic process s4, H kg working medium boosting process 1g, H kg working medium and M 3 kg working medium mixed suction process Thermal process g9, M 2 kg working fluid boosting process 93, M 2 kg working fluid endothermic process 35, M 1 kg working fluid boosting process 45, M 3 kg working fluid boosting process 56, M 3 kg working fluid release Thermal process 67, M 3 kg working fluid depressurization process 78, M 3 kg working fluid mixed with H kg working fluid Exothermic process 89, (M 1 +H) kg working fluid depressurization process 9c, (M 1 +H) Kilogram working fluid exothermic condensation process c1 - a closed process of composition; wherein, M 3 is the sum of M
  • the second type of single working fluid combined cycle refers to seventeen 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 vaporization process 2r, M 1 kg working medium depressurization process rs, M 1 kg working medium endothermic process s3, H kg working medium boosting process 1g, H kg working medium and M 3 kg working medium mixed suction process Thermal process gc, M 2 kg working fluid boosting process c3, M 3 kg working fluid endothermic process 34, M 3 kg working fluid boosting process 45, M 3 kg working fluid exothermic process 56, X kg working fluid depressurization Process 67, (M 3 -X) kilogram working fluid exothermic process 68, (M 3 -X) kilogram working fluid depressurization process 89, X kilogram working fluid exothermic process 79, M 3 kilogram working fluid and H kilogram working fluid Mixing exothermic process 9c, (M 1 +H) kilogram working fluid depressurization process c
  • the second type of single working fluid combined cycle refers to the eighteen 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 vaporization process 2r, M 1 kg working medium depressurization process rs, M 1 kg working medium endothermic process s3, M 1 kg working medium boosting process 34, M 1 kg working medium exothermic process 45, M 1 kg of working fluid is depressurized by 56, M 1 kg working fluid exothermic process 6d, H kg working fluid boosting process 1g, H kg working fluid mixed with M 3 kg working fluid endothermic process ge, M 2 kg working fluid liter Pressure process e7, M 2 kg working fluid endothermic process 78, M 2 kg working fluid boosting process 89, M 2 kg working fluid exothermic process 9c, M 2 kg working fluid depressurization process cd, M 3 kg working fluid and H kilogram working fluid mixing exothermic process de, (M 1 +H) kilogram working fluid depressur
  • the second type of single working fluid combined cycle refers to the seventeen 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) kilogram working medium endothermic vaporization process br, (M 1 +M) kilogram working medium depressurization process rs, (M 1 +M) kilogram working medium endothermic process s3 , H kilograms of working fluid pressurization process 1g, H kilograms of working fluid mixed with M 3 kilograms of working fluid endothermic process g8, M 2 kilograms of working fluid boosting process 8a, M kilograms of working fluid exothermic condensation process ab, (M 2 - M) kilogram working medium boosting process a3, M 3 kilogram working medium endothermic process 34, M 3 kilogram working medium boosting process 45, M 3 kilogram working medium exothermic process 56, M 3 kilogram working medium depressurizing process 67, M 3 kilograms of working fluid and H kilograms of working fluid mix exothermic
  • 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) kilogram working medium endothermic vaporization process br, (M 1 +M) kilogram working medium depressurization process rs, (M 1 +M) kilogram working medium endothermic process s5 , H kilograms of working fluid pressurization process 1g, H kilograms of working fluid mixed with M 3 kilograms of working fluid endothermic process g9, M 2 kilograms of working fluid boosting process 9a, M kilograms of working fluid exothermic condensation process ab, (M 2 - M) kilogram working fluid boosting process a3, (M 2 -M) kilogram working fluid endothermic process 34, (M 2 -M) kilogram working fluid boosting process 45, M 3 kilogram working fluid boosting process 56, M 3 Kilogram working fluid exothermic process 67, M 3 kg working fluid depress
  • 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) kilogram working medium endothermic vaporization process br, (M 1 +M) kilogram working medium depressurization process rs, (M 1 +M) kilogram working medium endothermic process s4 , H kilograms of working fluid pressurization process 1g, H kilograms of working fluid mixed with M 3 kilograms of working fluid endothermic process g9, M 2 kilograms of working fluid boosting process 9a, M kilograms of working fluid exothermic condensation process ab, (M 2 - M) kilogram working fluid boosting process a3, (M 2 -M) kilogram working fluid endothermic process 35, (M 1 +M) kilogram working fluid boosting process 45, M 3 kilogram working fluid boosting process 56, M 3 Kilogram working fluid exothermic process 67, M 3 kg working fluid depressur
  • the second type of single working fluid combined cycle refers to twenty 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 br, (M 1 +M) kilogram working medium depressurization process rs, (M 1 +M) kilogram working medium endothermic process s3 , H kilograms of working fluid pressurization process 1g, H kilograms of working fluid mixed with M 3 kilograms of working fluid endothermic process gc, M 2 kilograms of working fluid boosting process ca, M kilograms of working fluid exothermic condensation process ab, (M 2 - M) kilogram working medium boosting process a3, M 3 kilogram working medium endothermic process 34, M 3 kilogram working medium boosting process 45, M 3 kilogram working medium exothermic process 56, X kilogram working medium depressurizing process 67, ( M 3 -X) kilogram working fluid exothermic process 68, (M 3
  • the second type of single working fluid combined cycle refers to twenty-one 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 kg working medium endothermic process 2b, (M 1 +M) kg working medium endothermic vaporization process br, (M 1 +M) kg working medium depressurization process rs, (M 1 +M) kg working medium endothermic process s3, (M 1 +M) kilogram working fluid boosting process 34, (M 1 +M) kilogram working fluid exothermic process 45, (M 1 +M) kilogram working fluid depressurizing 56, (M 1 +M) Kg working medium exothermic process 6d, H kg 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 ea, M kg working medium exothermic condensation Process ab, (M 2 -M) kilogram working fluid boosting process a7, (M 2 -M) kilogram working fluid endothermic process 78
  • 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.
  • Fig. 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 medium condensate boosting process 12, M 1 kg working medium endothermic heating, vaporization and superheating process 2r, M 1 kg working medium depressurization and expansion process rs, M 1 kg working medium endothermic Heating process s3, 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 83, M 3 kg working fluid Working medium endothermic heating process 34, M 3 kg working medium pressure boosting and heating process 45, M 3 kg working medium exothermic cooling process 56, M 3 kg working medium depressurization and expansion 67, M 3 kg working medium and H kg working medium Mass mixing and exothermic cooling process 78, (M 1 +H) kilogram working fluid pressure reduction expansion process 89, (M 1 +H) kilogram working fluid exothermic condensation process 91 - a total of 14 processes.
  • 1Endothermic process - the endothermic process of g8 process with H kg working medium 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 undergoes 2r process, s3 process and M 3 process
  • the endothermic heat is generally provided by an external heat source for the 34 process of kilograms of working medium; wherein, M 3 kilograms of working fluid is absorbed in the high temperature section of the 34 process, and can also be provided by the low temperature section of the 56 process of its exothermic 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 bootstrapping working fluid 83, and the working medium M 3 kilogram boosting process 45, is generally accomplished by the compressor;
  • M 1 kilogram refrigerant expansion process down RS, M 3 kilogram expanded working fluid buck Process 67, and (M 1 +H) kilogram working fluid decompression and expansion process 89 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 medium condensate boosting process 12, M 1 kg working medium endothermic heating, vaporization and superheating process 2r, M 1 kg working medium depressurization and expansion process rs, M 1 kg working medium endothermic Heating process s5, H kilogram working fluid condensate boosting process 1g, H kilogram working fluid mixed with M 3 kilogram working fluid, endothermic heating, vaporization and superheating process g9, M 2 kilogram working fluid boosting and heating process 93, M 2 kilogram Working medium endothermic heating process 34, M 2 kg working medium pressure boosting and heating process 45, M 3 kg working medium pressure boosting and heating process 56, M 3 kg working medium exothermic cooling process 67, M 3 kg working medium pressure reduction and expansion process 78, M 3 kg working medium and H kg working medium are mixed with exothermic cooling process 89, (M 1 +H) kg working medium pressure reduction expansion process 9c, (M 1 +H) kg working medium exothermic condensation process c1—— There are 15 processes in total.
  • the exothermic heat in the low temperature section may be used for M 1 kg working medium for s5 process and M 2 kg working medium for 34 process
  • the high temperature section of the process absorbs heat; M 3 kg working fluid is exothermic in a mixed manner to H kg working fluid and cools down to 9 o'clock, and (M 1 +H) kg working fluid performs the exotherm of the c1 process generally released to the low temperature heat source (environment) .
  • 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 bootstrapping working fluid 93 and 45, and the working medium M 3 kilogram boosting process 56, is generally accomplished by the compressor;
  • the pressure expansion process 78, and the (M 1 +H) kilogram working fluid pressure reduction expansion process 9c are generally completed by the expander;
  • external mechanical energy is output at the same time, or when the pressure reduction expansion work is less than the boost pressure power consumption, the mechanical energy is input from the outside at the same time, forming the second type of single working medium 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 2r, M 1 kg working medium depressurization and expansion process rs, M 1 kg working medium endothermic Heating process s4, 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 93, M 2 kg working fluid Working medium endothermic heating process 35, M 1 kg working medium pressure boosting heating process 45, M 3 kg working medium pressure boosting heating process 56, M 3 kg working medium exothermic cooling process 67, M 3 kg working medium pressure reduction and expansion process 78, M 3 kg working medium and H kg working medium are mixed with exothermic cooling process 89, (M 1 +H) kg working medium pressure reduction expansion process 9c, (M 1 +H) kg working medium exothermic condensation process c1—— There are 15 processes in 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 1 kilogram refrigerant expansion process down rs, the depressurization and expansion process 78 of M 3 kg working fluid, and the depressurization and expansion process 9c of (M 1 +H) kg working fluid are generally completed by an expander;
  • the pressure expansion work is greater than the boost power consumption, the external mechanical energy is simultaneously output, or when the pressure reduction expansion work is less than the boost power consumption, the 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 2r, M 1 kg working medium depressurization and expansion process rs, M 1 kg working medium endothermic Heating process s3, 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 c3, M 3 kg Working medium endothermic temperature rise process 34, M 3 kilogram working medium pressure rise and temperature rise process 45, M 3 kilogram working medium exothermic cooling process 56, X kilogram working medium depressurization and expansion process 67, (M 3 -X) kilogram working medium release Thermal cooling process 68, (M 3 -X) kilogram working fluid pressure reduction expansion process 89, X kilogram working fluid exothermic cooling process 79, M 3 kilogram working fluid and H kilogram working fluid mix exothermic cooling process 9c, (M 1 +H) Kilogram working medium
  • 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 process 89 of (M 3 -X) kilogram working fluid, and the depressurization and expansion process cd of (M 1 +H) kilogram working fluid are generally performed by an expander;
  • the buck expansion work is greater than the boost power consumption, external mechanical energy is simultaneously output, or when the buck expansion work is less than the boost 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 2r, M 1 kg working medium depressurization and expansion process rs, M 1 kg working medium endothermic Heating process s3, M 1 kg working medium pressure boosting and heating process 34, M 1 kg working medium exothermic cooling process 45, M 1 kg working medium depressurization and expansion process 56, M 1 kg working medium exothermic cooling process 6d, 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 ge, M 2 kg working fluid boosting and heating process e7, M 2 kg working fluid endothermic heating process 78, M 2 kg working medium pressure rise and temperature rise process 89, M 2 kg working medium exothermic cooling process 9c, M 2 kg working medium depressurization and expansion process cd, M 3 kg working medium mixed with H kg working medium exothermic cooling process de, (M 1 +
  • 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 process 56, the depressurization process cd of M 2 kilograms of working fluid, and the depressurization and expansion process ef of (M 1 +H) kilograms of working fluid are generally completed by the expander;
  • the buck expansion work is greater than the boost power consumption, external mechanical energy is simultaneously output, or when the buck expansion work is less than the boost 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 br, M 1 kg working fluid pressure reduction and expansion process rs, M 1 kg working fluid endothermic heating process s3, H kg working fluid condensate boosting process 1g, H kg working fluid mixed with M 3 kg working fluid endothermic heating process , vaporization and superheating process g8, M 2 kilograms of working fluid pressure boosting and heating process 8a, M kilograms of working fluid mixed with M 1 kilogram of working fluid exothermic condensation process ab, (M 2 -M) kilogram working fluid pressure boosting and heating process a3, M 3 kg working medium endothermic heating process 34, M 3 kg working medium pressure increasing process 45, M 3 kg working medium exothermic cooling process 56, M 3 kg working medium decompression and expansion process 67, M 3 kg working medium and H kg working fluid mixing 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;
  • the external mechanical energy is simultaneously output, or when the buck expansion work is less than the boost power consumption, the external mechanical energy is input at the same time, forming the second type of single working fluid 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 br, M 1 kg working medium pressure reduction and expansion process rs, M 1 kg working medium endothermic heating process s5, H kg working medium condensate boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic Heating, vaporization and superheating process g9, M 2 kg working fluid pressure boosting and heating process 9a, M kg working fluid and M 1 kg working fluid mixed exothermic condensation process ab, (M 2 -M) kg working fluid pressure boosting and heating process a3, (M 2 -M) kilogram working medium endothermic heating process 34, (M 2 -M) kilogram working medium pressure increasing process 45, M 3 kilogram working medium pressure increasing and heating process 56, M 3 kilogram working medium exothermic Cooling process 67, M 3 kg working medium de
  • 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 work is used for boosting the power consumption, or when the buck expansion work is greater than the boosting power consumption, the external mechanical energy is output simultaneously, or when the bucking expansion work is less than the boosting power consumption, the mechanical energy is input from the outside at the same time, forming the second type of single working fluid
  • 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 br, M 1 kg working medium decompression and expansion process rs, M 1 kg working medium endothermic heating process s4, H kg working medium condensate boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic Heating, vaporization and superheating process g9, M 2 kg working fluid pressure boosting and heating process 9a, M kg working fluid and M 1 kg working fluid mixed exothermic condensation process ab, (M 2 -M) kg working fluid pressure boosting and heating process a3, (M 2 -M) kilogram working medium endothermic heating process 35, (M 1 +M) kilogram working medium pressure increasing process 45, M 3 kilogram working medium pressure boosting heating process 56, M 3 kilogram working medium exothermic Cooling process 67, M 3 kg working medium de
  • the exothermic heat in the low temperature section may be used for (M 1 +M) kg working medium for s4 process and (M 2 ) -M) kg working fluid at high temperature endothermic section 35 process; M 3 kg working fluid in a mixed manner exothermic kg H refrigerant cooled to 9:00, (M 1 + H) kg working fluid exothermic process c1 Generally released to a low temperature heat source (environment).
  • 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; (M 1 +M) kilogram working medium pressure reduction and expansion process rs, M 3 kilogram working medium pressure reduction expansion process 78, and (M 1 +H) kilogram working medium pressure reduction expansion process 78
  • Process 9c is generally completed by an expander; the depressurization expansion work is used for boosting power consumption, or when the depressurization expansion work is greater than the booster power consumption and external mechanical energy is simultaneously output, or the depressurization expansion work is less than the booster power consumption At the same time, mechanical energy is input from the outside
  • 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 br, M 1 kg working medium decompression and expansion process rs, M 1 kg working medium endothermic heating process s3, H kg working medium condensate boosting process 1g, H kg working medium mixed with M 3 kg working medium endothermic Heating, vaporization and superheating process gc, M 2 kg working fluid pressure boosting and heating process ca, M 1 kg working fluid mixed exothermic condensation process ab, (M 2 -M) kg working fluid pressure boosting heating process a3, M 3 kilograms of working medium endothermic temperature rise process 34, M 3 kilograms of working medium pressure rise and temperature rise process 45, M 3 kilograms of working medium exothermic cooling process 56, X kilograms of working medium depressurization and expansion process 67, (M 3- X ) kilogram working
  • 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 and bootstrapping ca (M 2 -M) kg working fluid boosting process a3, and M 3 45 kg bootstrapping refrigerant is generally accomplished by the compressor;
  • 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 br, M 1 kg working fluid pressure reduction and expansion process rs, M 1 kg working fluid endothermic heating process s3, (M 1 +M) kg working fluid pressure boosting and heating process 34, (M 1 +M) kg 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 Mixing endothermic heating, vaporization and superheating process ge with M 3 kg working fluid, M 2 kg working fluid boosting and heating process ea, M 1 kg working fluid mixed with M 1 kg working fluid and exothermic condensation process ab, (M 2 -M) Kilogram working fluid boosting and heating 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 boosting process 89 is generally completed by the compressor;
  • the depressurization process cd of the working fluid, and the depressurization and expansion process ef of the (M 1 +H) kilogram working fluid are generally completed by the expander;
  • 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 conducive to reducing the heat transfer temperature difference in the heating link and realizing 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 medium-temperature heat sources and variable-medium-temperature heat sources.

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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

L'invention concerne un cycle combiné à milieu unique de travail de second type, relatif au domaine technique de la thermodynamique et des pompes à chaleur. Le cycle combiné est un procédé fermé composé de quatorze processus qui sont respectivement ou conjointement réalisés par M1 kg d'un milieu de travail, M2 kg du milieu de travail et H kg du milieu de travail : le processus d'augmentation de la pression 12 de M1 kg du milieu de travail, le processus d'absorption de chaleur et de vaporisation 2r de M1 kg du milieu de travail, le processus de diminution de la pression rs de M1 kg du milieu de travail, le processus d'absorption de chaleur s3 de M1 kg du milieu de travail, le processus de montée en pression 1g de H kg du milieu de travail, le processus de mélange et d'absorption de chaleur g8 de H kg du milieu de travail et M3 kg du milieu de travail, le processus de montée en pression 83 de M2 kg du milieu de travail, le processus d'absorption de chaleur 34 de M3 kg du milieu de travail, le processus d'augmentation de la pression 45 de M3 kg du milieu de travail, le processus de libération de la chaleur 56 de M3 kg du milieu de travail, le processus de diminution de la pression 67 de M3 kg du milieu de travail, le processus de mélange et de libération de chaleur 78 de M3 kg du milieu de travail et H kg du milieu de travail, le processus de diminution de pression 89 de (M1+H) kg du milieu de travail, et le processus de libération de chaleur et de condensation 91 de (M1+H) kg du milieu de travail, M3 étant la somme de M1 et M2.
PCT/CN2021/000147 2020-07-12 2021-07-08 Cycle combiné à milieu de travail unique de second type WO2022011995A1 (fr)

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US20100205962A1 (en) * 2008-10-27 2010-08-19 Kalex, Llc Systems, methods and apparatuses for converting thermal energy into mechanical and electrical power
US20110094227A1 (en) * 2009-10-27 2011-04-28 General Electric Company Waste Heat Recovery System
EP2431580A1 (fr) * 2010-09-17 2012-03-21 United Technologies Corporation Systèmes et procédés pour la génération d'électricité à partir de plusieurs sources de chaleur au moyen de fluides de travail adaptés
CN106225321A (zh) * 2016-04-17 2016-12-14 李华玉 第二类热驱动压缩式热泵
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
CN109974323A (zh) * 2019-03-05 2019-07-05 中国科学院力学研究所 一种带喷流降温装置的冷热电联供循环方法及系统

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CN105953472B (zh) * 2015-04-13 2020-06-16 李华玉 双向热力循环与第二类热驱动压缩式热泵
CN105953473B (zh) * 2015-04-13 2020-06-16 李华玉 双向热力循环与第二类热驱动压缩式热泵

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978661A (en) * 1974-12-19 1976-09-07 International Power Technology Parallel-compound dual-fluid heat engine
US20100205962A1 (en) * 2008-10-27 2010-08-19 Kalex, Llc Systems, methods and apparatuses for converting thermal energy into mechanical and electrical power
US20110094227A1 (en) * 2009-10-27 2011-04-28 General Electric Company Waste Heat Recovery System
EP2431580A1 (fr) * 2010-09-17 2012-03-21 United Technologies Corporation Systèmes et procédés pour la génération d'électricité à partir de plusieurs sources de chaleur au moyen de fluides de travail adaptés
CN106225321A (zh) * 2016-04-17 2016-12-14 李华玉 第二类热驱动压缩式热泵
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
CN109974323A (zh) * 2019-03-05 2019-07-05 中国科学院力学研究所 一种带喷流降温装置的冷热电联供循环方法及系统

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