WO2021253810A1 - Cycle combiné de milieu de travail unique de second type - Google Patents

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

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Publication number
WO2021253810A1
WO2021253810A1 PCT/CN2021/000126 CN2021000126W WO2021253810A1 WO 2021253810 A1 WO2021253810 A1 WO 2021253810A1 CN 2021000126 W CN2021000126 W CN 2021000126W WO 2021253810 A1 WO2021253810 A1 WO 2021253810A1
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working fluid
exothermic
boosting
kilogram
endothermic
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PCT/CN2021/000126
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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
    • 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
    • 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
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle

Definitions

  • the invention belongs to the field of thermodynamics and heating technology.
  • the present invention also takes into account the use of power driving or the power demand at the same time, and proposes to adopt a phase change process or a phase change process to achieve low-temperature heat release, and adopt a temperature change process or a temperature change process as The main realization of medium temperature heat absorption, and the use of variable temperature process to achieve high temperature heating of the second type of single working fluid combined cycle.
  • the main purpose of the present invention is to provide the second type of single working fluid combined cycle.
  • the specific content of the invention is described as follows:
  • the second type of single working fluid combined cycle refers to the nine processes that are composed of M 1 kilogram and M 2 kilograms, respectively or jointly-M 1 kilogram of working fluid boost process 12, M 1 kilogram of working fluid Endothermic vaporization process 23, 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 depressurization process 67, M 3 kg working fluid exothermic process 78, M 1 kg working fluid exothermic condensation process 81-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 ten processes that are composed of M 1 kg and M 2 kg, which are carried out separately or jointly-M 1 kg working fluid boost process 12, M 2 kg working fluid Mass boosting process 93, M 2 kg working fluid endothermic process 34, M 1 kg working fluid endothermic vaporization process 25, 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 exothermic process 89, M 1 kg working fluid exothermic and condensing process 91—composition closed process; where M 3 is M The sum of 1 and M 2.
  • the second type of single working fluid combined cycle refers to ten processes that are composed of M 1 kilogram and M 2 kilograms, respectively or jointly-M 1 kilogram of working fluid boost process 12, M 1 kilogram of working fluid Endothermic vaporization process 24, M 2 kg refrigerant boost process 93, M 2 kg refrigerant endothermic process 35, M 1 kg refrigerant boost process 45, M 3 kg refrigerant boost process 56, M 3 kg Working fluid exothermic process 67, M 3 kg working fluid depressurization process 78, M 3 kg working fluid exothermic process 89, M 1 kg working fluid exothermic and condensing process 91—composition closed process; where M 3 is M The sum of 1 and M 2.
  • the second type of single working fluid combined cycle refers to the twelve processes that are composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid boost process 12, M 1 kg Working fluid endothermic vaporization process 23, 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 pressure reduction process 67, (M 3 -X) kg working fluid heat release process 68, (M 3 -X) kg working fluid pressure reduction process 89, X kg working fluid heat release process 79, M 3 kg working fluid release Thermal process 9c, M 1 kg of working fluid exothermic condensation process c1-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 the thirteen processes that are composed of M 1 kilogram and M 2 kilograms, respectively or jointly-M 1 kilogram of working medium boost process 12, M 1 kilogram Working fluid 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 depressurizing over 56, M 1 kg working fluid exothermic process 6d, M 2 kg refrigerant bootstrapping e7, M 2 kg refrigerant endothermic process 78, M 2 kg bootstrapping working medium 89, M 2 kg refrigerant exothermic process 9c, M 2 kg working fluid depressurisation cd, M 3 Kilogram working fluid exothermic process de, M 1 kilogram working fluid exothermic condensation process e1——composition closed process; among them, M 3 is the sum of M 1 and M 2.
  • the second type of single working fluid combined cycle refers to the twelve processes that are composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid boost process 12, M 1 kg Working fluid endothermic process 2b, (M 1 +M) kg working fluid endothermic vaporization process b3, M 2 kg working fluid boosting process 8a, M kg working fluid exothermic condensation process ab, (M 2 -M) kg working fluid Mass boosting process a3, 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 depressurizing process 67, M 3 kg working fluid Mass exothermic process 78, M 1 kg working fluid exothermic condensation process 81-a closed process of composition; among them, M 3 is the sum of M 1 and M 2.
  • the second type of single working fluid combined cycle refers to the thirteen processes that are composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid boost process 12, M 1 kg Working fluid endothermic process 2b, M 2 kg working fluid boosting process 9a, M kg working fluid exothermic condensation process ab, (M 2 -M) kg working fluid boosting process a3, (M 2 -M) kg working fluid Endothermic process 34, (M 1 +M) kilogram working fluid endothermic vaporization process b5, (M 2 -M) kilogram working fluid boosting process 45, M 3 kilogram working fluid boosting process 56, M 3 kilogram working fluid releasing Thermal process 67, M 3 kg working fluid depressurization process 78, M 3 kg working fluid exothermic process 89, M 1 kg working fluid exothermic condensation process 91—composition closed process; where M 3 is M 1 and M The sum of 2.
  • the second type of single working fluid combined cycle refers to the thirteen processes that are composed of M 1 kg and M 2 kg, which are carried out separately or jointly-M 1 kg working fluid boost process 12, M 1 kg Working fluid endothermic process 2b, M 2 kg working fluid boosting process 9a, M kg working fluid exothermic condensation process ab, (M 2 -M) kg working fluid boosting process a3, (M 1 +M) kg working fluid Endothermic vaporization process b4, (M 2 -M) kg working fluid endothermic process 35, (M 1 +M) kg working fluid boost process 45, M 3 kg working fluid boost process 56, M 3 kg working fluid release Thermal process 67, M 3 kg working fluid depressurization process 78, M 3 kg working fluid exothermic process 89, M 1 kg working fluid exothermic condensation process 91—composition closed process; where M 3 is M 1 and M The sum of 2.
  • the second type of single working fluid combined cycle refers to the fifteen processes that are composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid boost process 12, M 1 kg Working fluid endothermic process 2b, (M 1 +M) kg working fluid endothermic vaporization process b3, M 2 kg working fluid boosting process ca, M kg working fluid exothermic condensation process ab, (M 2 -M) kg working fluid Mass pressure increase process a3, M 3 kg working fluid endothermic process 34, M 3 kg working fluid pressure increase process 45, M 3 kg working fluid heat release process 56, X kg working fluid pressure reduction process 67, (M 3 -X ) Kilogram working fluid heat release process 68, (M 3 -X) Kilogram working fluid pressure reduction process 89, X kg working fluid heat release process 79, M 3 kg working fluid heat release process 9c, M 1 kg working fluid heat release and condensation Process c1-the 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 the sixteen processes that are composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid boost process 12, M 1 kg Working fluid endothermic process 2b, (M 1 +M) kilogram working fluid endothermic vaporization process b3, (M 1 +M) kilogram working fluid boosting process 34, (M 1 +M) kilogram working fluid exothermic process 45, (M 1 +M) kg of working fluid has been depressurized by 56, (M 1 +M) kg of working fluid exothermic process 6d, M 2 kg of working fluid pressure increase process ea, M kg of working fluid exothermic condensation process ab, (M 2 -M) Kilogram working fluid boost process a7, (M 2 -M) Kilogram working fluid endothermic process 78, (M 2 -M) Kilogram working fluid boost process 89, (M 2 -M) Kilogram working fluid release Thermal process 9c, (M 2 -M) kg working fluid depressurization process cd, M 3 kg working fluid exother
  • Figure 1/10 is an example diagram of the first principle flow chart of the second type of single working fluid combined cycle provided by 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 by 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 by 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 by the present invention.
  • Fig. 5/10 is an example diagram of the fifth principle flow chart of the second type of single working fluid combined cycle provided by 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 by 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 by 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 by 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 by the present invention.
  • Fig. 10/10 is an example diagram of the tenth principle flow chart of the second type of single working fluid combined cycle provided by the present invention.
  • M 3 is the sum of M 1 and M 2 ; the following is combined with the accompanying drawings And examples describe the present invention in detail.
  • M 1 kilogram working medium condensed liquid refrigerant boosting process 12 M 1 kilogram refrigerant absorbs heat heating, vaporization and superheating process 23, M 2 kilogram booster working fluid heating process 83, M 3 kilogram refrigerant absorbs heat Heating process 34, M 3 kg working fluid pressure increasing process 45, M 3 kg working fluid exothermic cooling process 56, M 3 kg working fluid depressurizing expansion process 67, M 3 kg working fluid exothermic cooling process 78, M 1 The exothermic condensation process of kilogram working fluid 81-a total of 9 processes.
  • 3Energy conversion process -the boosting process of M 1 kg of working fluid 12 is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or externally;
  • the pressure increase process 45 of the M 3 kg working fluid is generally completed by a compressor;
  • the pressure reduction expansion process 67 of the M 3 kg working fluid is generally completed by an expander;
  • M 1 kilogram working medium condensed liquid refrigerant boosting process 12 M 1 kilogram refrigerant absorbs heat heating, vaporization and superheating process 25, M 2 kilogram booster working fluid heating process 93, M 2 kilogram refrigerant absorbs heat Heating process 34, M 2 kg working fluid boosting and heating process 45, M 3 kg working fluid boosting and heating process 56, M 3 kg working fluid exothermic and cooling process 67, M 3 kg working fluid depressurizing expansion process 78, M 3 The exothermic cooling process of kilogram working fluid 89, the exothermic condensation process of M 1 kilogram working fluid 91-a total of 10 processes.
  • 2Exothermic process-M 3 kg of working fluid carries out the heat release of 67 process, and external provision meets the corresponding heat demand.
  • the low temperature section of the heat can be used for M 1 kg of working fluid for 25 process and M 2 kg of working fluid for 34
  • the high temperature section of the process absorbs heat;
  • M 3 kg of working fluid carries out the heat release of the 89 process, which can release heat to the cooling medium, or part or all of it is used for the heat absorption requirements of other processes in the combined cycle, and the useless part is released to the low temperature heat source (environment) ;
  • M 1 kilogram of working fluid carries out the heat release of the 91 process, which is generally released to the low-temperature heat source (environment).
  • 3Energy conversion process -the boosting process of M 1 kg of working fluid 12 is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or externally; the boosting process of M 2 kg of working fluid 93 and 45 , And the boosting process 56 of the M 3 kg working fluid is generally completed by the compressor; the depressurizing expansion process 78 of the M 3 kg working fluid is generally completed by the expander; Or when the buck expansion work is greater than the boost power consumption, mechanical energy is output at the same time, or when the buck expansion work is less than the boost work consumption, mechanical energy is input from the outside at the same time, forming the second type of single working substance combined cycle.
  • M 1 kilogram working medium condensed liquid refrigerant boosting process 12 M 1 kilogram refrigerant absorbs heat heating, vaporization and superheating process 24, M 2 kilogram booster working fluid heating process 93, M 2 kilogram refrigerant absorbs heat Heating process 35, M 1 kg working fluid boosting and heating process 45, M 3 kg working fluid boosting and heating process 56, M 3 kg working fluid exothermic and cooling process 67, M 3 kg working fluid depressurizing expansion process 78, M 3 The exothermic cooling process of kilogram working fluid 89, the exothermic condensation process of M 1 kilogram working fluid 91-a total of 10 processes.
  • the low temperature section of the heat may be used for M 1 kg of working fluid for 24 processes and M 2 kg of working fluid for 35
  • the high temperature section of the process absorbs heat;
  • M, kilograms of working fluid carry out the heat release of the 89 process, which can release heat to the cooling medium, or part or all of it is used for the heat absorption requirements of other processes in the combined cycle, and the useless part is released to the low temperature heat source (environment) ;
  • M 1 kilogram of working fluid carries out the heat release of the 91 process, which is generally released to the low-temperature heat source (environment).
  • 3Energy conversion process -the boosting process of M 1 kg of working fluid 12 is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or externally;
  • the boosting process of M 1 kg of working fluid 45, M 2 kg of working fluid boosting process 93, and the working medium M 3 kilogram boosting process 56 is generally accomplished by the compressor;
  • M 3 kilogram down the expansion process of the working fluid 78 is generally accomplished by the expander;
  • buck Expansion work is used for boosting power consumption, or when the buck expansion work is greater than the boosting work, mechanical energy is output at the same time, or when the buck expansion work is less than the boosting work, mechanical energy is input from the outside at the same time, forming the second type of simplex Quality combined cycle.
  • Working medium M 1 kg of working fluid condensate boosting process 12, M 1 kg of working fluid endothermic heating, vaporization and overheating process 23, M 2 kg of working fluid boosting and heating process c3, M 3 kg of working fluid endothermic Heating process 34, M 3 kg working fluid pressure increasing process 45, M 3 kg working fluid exothermic cooling process 56, X kg working fluid depressurizing expansion process 67, (M 3 -X) kg working fluid exothermic cooling process 68 , (M 3 -X) kg working fluid depressurization expansion process 89, X kg working fluid exothermic cooling process 79, M 3 kg working fluid exothermic cooling process 9c, M 1 kg working fluid exothermic condensation process c1——total 12 processes.
  • 3Energy conversion process -the boosting process of M 1 kg of working fluid 12 is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or externally;
  • the boosting process of M 2 kg of working fluid c3 and
  • the pressure increase process of M 3 kg working fluid 45 is generally completed by a compressor;
  • the pressure reduction process 67 of X kg working fluid and the pressure reduction process 89 of (M 3 -X) kg working fluid are generally completed by an expander;
  • the buck expansion work is used for boosting power consumption, or when the buck expansion work is greater than the boosting work, mechanical energy is output at the same time, or when the buck expansion work is less than the boosting work, the mechanical energy is input from the outside at the same time, forming the second category Single working fluid combined cycle.
  • Working medium M 1 kg of working fluid condensate boosting process 12, M 1 kg of working fluid endothermic heating, vaporization and overheating process 23, M 1 kg of working fluid boosting and heating process 34, M 1 kg of working fluid exothermic Cooling process 45, M 1 kg working fluid depressurizing expansion process 56, M 1 kg working fluid exothermic cooling process 6d, M 2 kg working fluid pressure rising process e7, M 2 kg working fluid endothermic heating process 78, M 2 Pressure increasing process of kg working fluid 89, M 2 kg working fluid exothermic cooling process 9c, M 2 kg working fluid depressurization expansion process cd, M 3 kg working fluid exothermic cooling process de, M 1 kg working fluid exothermic and condensation Process e1-a total of 13 processes.
  • the low temperature section of the heat may be used for the high temperature section of the 78 process to absorb heat (regeneration); M 1 kg of working fluid is used for the 6d process of heat release and M 3 kg of working fluid
  • the heat released during the de process can be released to the cooling medium, or part or most of it is used for the heat absorption requirements of other processes in the combined cycle, and the useless part is released to the low-temperature heat source (environment); M 1 kg of working fluid can release the heat from the e1 process , Generally released to a low-temperature heat source.
  • 3Energy conversion process -the boosting process 12 of M 1 kg of working fluid is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or externally;
  • the boosting process of M 2 kg of working fluid e7 and 89 and M 1 kilogram of working fluid boosting process 34 is generally accomplished by the compressor;
  • M 1 kilogram depressurisation of the working fluid 56, and M 2 kilogram CD depressurisation of the working fluid is generally accomplished by the expander;
  • the buck expansion work is used for boosting power consumption, or when the buck expansion work is greater than the boosting work, mechanical energy is output at the same time, or when the buck expansion work is less than the boosting work, the mechanical energy is input from the outside at the same time, forming the second category Single working fluid combined cycle.
  • Working medium M 1 kg of working fluid condensate boosting process 12, M 1 kg of working fluid and M kg of superheated steam mixing endothermic heating process 2b, (M 1 +M) kg of working fluid endothermic heating, vaporization and overheating Process b3, M 2 kg of working fluid pressure rising process 8a, M kg of working fluid and M 1 kg of working fluid mixed exothermic condensation process ab, (M 2 -M) kg of working fluid pressure rising process a3, M 3 kg of working fluid Endothermic heating process 34, M 3 kg working fluid pressure increasing process 45, M 3 kg working fluid exothermic cooling process 56, M 3 kg working fluid depressurizing expansion process 67, M 3 kg working fluid exothermic cooling process 78 , M 1 kg of working fluid exothermic condensation process 81-a total of 12 processes.
  • 3Energy conversion process -the boosting process of M 1 kg of working fluid 12 is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or externally;
  • the boosting process of M 2 kg of working fluid 8a and ( M 2 -M) The pressure increase process a3 of kilogram working fluid and the pressure increase process 45 of M 3 kilogram working fluid are generally completed by a compressor;
  • the depressurization and expansion process 67 of M 3 kilogram working fluid is generally performed by an expander Complete;
  • buck expansion work is used for boost power consumption, or when the buck expansion work is greater than the boost work consumption, mechanical energy is output at the same time, or when the buck expansion work is less than the boost work consumption, mechanical energy is input from the outside at the same time, forming the first The second type of single working fluid combined cycle.
  • the working medium is carried out-M 1 kg of working fluid condensate boosting process 12, M 1 kg of working fluid and M kg of working fluid mixed endothermic heating process 2b, (M 1 +M) kg of working fluid endothermic heating, vaporization and Overheating process b5, M 2 kg working fluid pressure rising process 9a, M kg working fluid and M 1 kg working fluid mixed exothermic condensation process ab, (M 2 -M) kg working fluid pressure rising process a3, (M 2 -M) Kilogram working fluid endothermic heating process 34, (M 2 -M) Kilogram working fluid pressure rising and heating process 45, M 3 kg working fluid pressure rising and heating process 56, M 3 kg working fluid exothermic cooling process 67, M 3 kg working fluid depressurization expansion process 78, M 3 kg working fluid exothermic cooling process 89, M 1 kg working fluid exothermic condensation process 91-a total of 13 processes.
  • 3Energy conversion process -the boosting process of M 1 kg of working fluid 12 is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or externally;
  • the boosting process of M 2 kg of working fluid 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;
  • M 3 kg of working fluid down the expansion process 78 typically made of expanded
  • the working medium is carried out-M 1 kg of working fluid condensate boosting process 12, M 1 kg of working fluid and M kg of working fluid mixed endothermic heating process 2b, (M 1 +M) kg of working fluid endothermic heating, vaporization and Overheating process b4, M 2 kg working fluid pressure rising process 9a, M kg working fluid and M 1 kg working fluid mixed exothermic condensation process ab, (M 2 -M) kg working fluid pressure rising process a3, (M 2 -M) Kg working fluid endothermic heating process 35, (M 1 +M) Kg working fluid boosting and heating process 45, M 3 kg working fluid boosting and heating process 56, M 3 kg working fluid exothermic and cooling process 67, M 3 kg working fluid depressurization expansion process 78, M 3 kg working fluid exothermic cooling process 89, M 1 kg working fluid exothermic condensation process 91-a total of 13 processes.
  • 3Energy conversion process -the boosting process of M 1 kg of working fluid 12 is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or externally;
  • the boosting process of M 2 kg of working fluid 9a, ( M 2 -M) the pressure increase process a3 of kilogram working fluid, the pressure increase process 45 of (M 1 +M) kilogram working fluid, and the pressure increase process 56 of M 3 kilogram working fluid which are generally completed by a compressor;
  • M 3 The pressure-reducing expansion process of kilogram working fluid 78 is generally completed by an expander;
  • the pressure-reducing expansion work is used for boosting power consumption, or when the pressure-reducing expansion work is greater than the boosting power consumption, the mechanical energy is output at the same time, or the pressure-reducing expansion work
  • the 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 substance combined cycle.
  • the working medium is carried out-M 1 kg of working fluid condensate boosting process 12, M 1 kg of working fluid and M kg of working fluid mixed endothermic heating process 2b, (M 1 +M) kg of working fluid endothermic heating, vaporization and Overheating process b3, M 2 kg working fluid pressure rising process ca, M kg working fluid and M 1 kg working fluid mixed exothermic condensation process ab, (M 2 -M) kg working fluid pressure rising process a3, M 3 Kilogram working fluid endothermic heating process 34, M 3 kilogram working fluid pressure increasing process 45, M 3 kilogram working fluid exothermic cooling process 56, X kilogram working fluid depressurizing expansion process 67, (M 3 -X) kilogram working fluid Exothermic cooling process 68, (M 3 -X) kg working fluid depressurization expansion process 89, X kg working fluid exothermic cooling process 79, M 3 kg working fluid exothermic cooling process 9c, M 1 kg working fluid exothermic condensation Process c1-a total of 15 processes.
  • 3Energy conversion process -the boosting process of M 1 kg of working fluid 12 is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or externally;
  • the boosting process of M 2 kg of working fluid ca and ( M 2 -M) the pressure increase process a3 of kilograms of working fluid, and the pressure increase process of M 3 kilograms of working fluid 45, are generally completed by compressors;
  • the depressurization process of the working fluid 89 is generally completed by the expander;
  • the depressurization expansion work is used for boosting power consumption, or when the depressurizing expansion work is greater than the boosting work consumption, the mechanical energy is output at the same time, or the depressurizing expansion work is less than
  • the working medium is carried out-M 1 kg of working fluid condensate boosting process 12, M 1 kg of working fluid and M kg of working fluid mixed endothermic heating process 2b, (M 1 +M) kg of working fluid endothermic heating, vaporization and Overheating process b3, (M 1 +M) kg working fluid boosting and heating process 34, (M 1 +M) kg working fluid exothermic and cooling process 45, (M 1 +M) kg working fluid depressurization and expansion process 56, ( M 1 +M) kg of working fluid exothermic cooling process 6d, M 2 kg of working fluid boosting and heating process ea, M kg of working fluid and M 1 kg of working fluid mixed exothermic condensation process ab, (M 2 -M) kg Working fluid pressure increasing process a7, (M 2 -M) kilogram working fluid endothermic heating process 78, (M 2 -M) kilogram working fluid pressure increasing process 89, (M 2 -M) kilogram working fluid exothermic and cooling Process 9c, (M 2 -M) kg working fluid depress
  • the low temperature section of the heat can be used for the high temperature section of the 23 process to absorb heat (regeneration);
  • the heat release of the 6d process and the heat release of the M 3 kg working fluid for the de process can be released to the cooling medium, or part or most of it is used for the heat absorption requirements of other processes in the combined cycle, and the useless part is released to the low-temperature heat source (environment) ;
  • M 1 kg of working fluid carries out the exothermic heat of the e1 process, which is generally released to the low-temperature heat source.
  • 3Energy conversion process -the boosting process 12 of M 1 kg of working fluid is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or externally;
  • the boosting process of M 2 kg of working fluid ea, ( M 2 -M) the pressure increase process a7 of kilogram working fluid, the pressure increase process of (M 1 +M) kilogram working fluid 34, and the pressure increase process 89 of (M 2 -M) kilogram working fluid generally come from the compressor Complete;
  • (M 1 +M) the depressurization process of kilograms of working fluid 56 and (M 2 -M) the depressurization process of (M 2 -M) kilograms of working fluid cd are generally completed by an expander; depressurization expansion work is used for pressure boosting work , Or when the buck expansion work is greater than the boost power consumption, mechanical energy is output at the same time, or when the buck expansion work is less than the boost work consumption, mechanical energy is input from the outside at the same time, forming
  • Thermal energy (temperature difference) drive to increase the temperature of thermal energy, or you can choose to provide power to the outside at the same time.
  • 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.
  • the temperature change process or the temperature change process mainly realizes the middle temperature heat absorption, which is beneficial to reduce the heat transfer temperature difference in the middle temperature heat load acquisition link and improve the cycle performance index.
  • Variable temperature heat release 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 conducive to production and storage; reduces operating costs and improves the flexibility of cycle adjustment
  • a wide range of working fluid parameters can achieve high-efficiency and high-temperature heating; it can well adapt to energy supply requirements, and the matching between working fluid and working parameters is flexible.
  • thermodynamic cycle range for realizing the utilization of the temperature difference is expanded, which is beneficial to better realize the high-efficiency heat utilization of the medium-temperature heat source and the variable-medium-temperature heat source.

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

Abstract

L'invention concerne un cycle combiné de milieu de travail unique de second type, qui appartient aux domaines techniques de la thermodynamique, de la réfrigération et des pompes à chaleur. Le cycle combiné de milieu de travail unique de second type se réfère à un processus fermé composé de neuf processus réalisés séparément ou conjointement avec un milieu de travail composé de M1 kg et M2 kg de milieu de travail, c'est-à-dire un processus d'augmentation de pression des M1 kg du milieu de travail (12), un processus de vaporisation endothermique des M1 kg du milieu de travail (23), un processus d'augmentation de pression des M2 kg du milieu de travail (83), un processus endothermique de M3 kg du milieu de travail (34), un processus d'augmentation de pression des M3 kg du milieu de travail (45), un processus exothermique des M3 kg du milieu de travail (56), un processus de réduction de pression des M3 kg du milieu de travail (67), un processus exothermique des M3 kg du milieu de travail (78), et un processus de condensation exothermique des M1 kg du milieu de travail (81), M3 étant la somme de M1 et M2.
PCT/CN2021/000126 2020-06-20 2021-06-17 Cycle combiné de milieu de travail unique de second type WO2021253810A1 (fr)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216899A (en) * 1990-11-29 1993-06-08 Gracio Fabris Rotating single cycle two-phase thermally activated heat pump
US20130341929A1 (en) * 2012-06-26 2013-12-26 The Regents Of The University Of California Organic flash cycles for efficient power production
US9038390B1 (en) * 2014-10-10 2015-05-26 Sten Kreuger Apparatuses and methods for thermodynamic energy transfer, storage and retrieval
CN105805973A (zh) * 2015-04-13 2016-07-27 李华玉 多向热力循环与第三类热驱动压缩式热泵
CN105953473A (zh) * 2015-04-13 2016-09-21 李华玉 双向热力循环与第二类热驱动压缩式热泵
CN107605554A (zh) * 2015-11-27 2018-01-19 张玉良 自冷式热力循环方法
CN107763850A (zh) * 2017-11-07 2018-03-06 南京航空航天大学 可以制取不低于100℃沸水的超高温热泵系统及方法
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216899A (en) * 1990-11-29 1993-06-08 Gracio Fabris Rotating single cycle two-phase thermally activated heat pump
US20130341929A1 (en) * 2012-06-26 2013-12-26 The Regents Of The University Of California Organic flash cycles for efficient power production
US9038390B1 (en) * 2014-10-10 2015-05-26 Sten Kreuger Apparatuses and methods for thermodynamic energy transfer, storage and retrieval
CN105805973A (zh) * 2015-04-13 2016-07-27 李华玉 多向热力循环与第三类热驱动压缩式热泵
CN105953473A (zh) * 2015-04-13 2016-09-21 李华玉 双向热力循环与第二类热驱动压缩式热泵
CN107605554A (zh) * 2015-11-27 2018-01-19 张玉良 自冷式热力循环方法
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
CN107763850A (zh) * 2017-11-07 2018-03-06 南京航空航天大学 可以制取不低于100℃沸水的超高温热泵系统及方法

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