WO2022001076A1 - Second type of single working medium combined cycle - Google Patents

Second type of single working medium combined cycle Download PDF

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Publication number
WO2022001076A1
WO2022001076A1 PCT/CN2021/000133 CN2021000133W WO2022001076A1 WO 2022001076 A1 WO2022001076 A1 WO 2022001076A1 CN 2021000133 W CN2021000133 W CN 2021000133W WO 2022001076 A1 WO2022001076 A1 WO 2022001076A1
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working fluid
working
exothermic
working medium
kilogram
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PCT/CN2021/000133
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French (fr)
Chinese (zh)
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李华玉
李鸿瑞
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李华玉
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/06Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00Compression machines, plants or systems with non-reversible cycle

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, flexibly adapts to high temperature heat source, and adopts the second type of single working medium combined cycle to realize high temperature heat supply through temperature change process.
  • 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 eleven processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g3, M 2 kg working fluid boosting process 83, M 3 kg working fluid endothermic process 34, M 3 Kilogram working medium pressure boosting process 45, M 3 kg working medium exothermic process 56, M 3 kg working medium depressurization process 67, M 3 kg working medium exothermic process 78, M 1 kg working medium 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 the twelve processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 2 kg Working fluid boosting process 93, M 2 kg working fluid endothermic process 34, M 1 kg working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g5, M 2 Kilogram 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 depressurizing process 78, M 3 kg working fluid exothermic process 89, M 1 Kilogram working fluid exothermic condensation process 91 - a closed process of composition; wherein, 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 carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g4, M 2 kg working fluid boosting process 93, M 2 kg working fluid endothermic process 35, M 1 Kilogram 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 depressurizing process 78, M 3 kg working fluid exothermic process 89, M 1 Kilogram working fluid exothermic condensation process 91 - a closed process of composition; wherein, M 3 is the sum of M 1 and M 2 .
  • the second type of single working fluid combined cycle refers to the fourteen processes carried out separately or jointly by working fluids consisting of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g3, M 2 kg working fluid boosting process c3, M 3 kg working fluid endothermic process 34, M 3 kg bootstrapping working fluid 45, M 3 kg refrigerant exothermic process 56, X kg working fluid depressurisation 67, (M 3 -X) kg refrigerant exothermic process 68, (M 3 -X) kg refrigerants Depressurization process 89, X kilogram working fluid exothermic process 79, M 3 kilogram working fluid exothermic process 9c, M 1 kilogram working fluid exothermic condensation process c1—a closed process of composition; wherein, M 3 is M 1 and M 2 sum.
  • the second type of single working fluid combined cycle refers to the fifteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g3, M 1 kg working fluid boosting process 34, M 1 kg working fluid exothermic process 45, M 1 Kilogram working medium is depressurized by 56, M 1 kg working medium exothermic process 6d, M 2 kg working medium boosting process e7, M 2 kg working medium endothermic process 78, M 2 kg working medium boosting process 89, M 2 Kg working medium exothermic process 9c, M 2 kg working medium depressurization process cd, M 3 kg working medium exothermic process de, M 1 kg working medium exothermic condensation process e1 - 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 the fourteen processes carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic process 2b, (M 1 +M) kilogram working fluid endothermic vaporization process bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g3, M 2 kg working fluid boosting process 8a, M 2 kg working fluid exothermic condensation process ab, (M 2 -M) kg working fluid boosting process a3, M 3 kg working fluid endothermic process 34, M 3 kg working fluid liter Pressing 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 - closed process of composition ; Wherein, M 3 is the sum of M 1 and M 2.
  • the second type of single working fluid combined cycle refers to fifteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting 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 bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g5, (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 exothermic process 89, M 1 kg working medium exothermic condensation process 91 - a closed process of composition; wherein, M 3 is the
  • the second type of single working fluid combined cycle refers to the fifteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting 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 bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g4, (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 exothermic process 89, M 1 kilogram of working medium exothermic condensation process 91 - a closed process of composition; wherein, M
  • the second type of single working fluid combined cycle refers to the working fluids composed of M 1 kg and M 2 kg, which are carried out separately or together in seventeen processes - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic process 2b, (M 1 +M) kilogram working fluid endothermic vaporization process bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g3, M 2 kg working fluid boosting process ca, M working fluid exothermic condensation process ab, (M 2 -M) kg working fluid boosting process a3, M 3 kg working fluid endothermic process 34, M 3 kg working fluid liter Pressure 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) kg working fluid depressurization process 89 , X kilogram working fluid exothermic process 79, M 3 kilogram working fluid exothermic process 9c
  • the second type of single working fluid combined cycle refers to the eighteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic process 2b, (M 1 +M) kilogram working fluid endothermic vaporization process bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g3, (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) kilogram working fluid Mass exothermic process 6d, 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 absorption process Thermal process 78, (M 2 -M) kilogram working fluid boosting process 89, (M 2 -
  • 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 ; below in conjunction with the accompanying drawings The invention is described in detail with examples.
  • 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 2f, M 1 kg working medium depressurization and expansion process fg, M 1 kg working medium endothermic Heating process g3, M 2 kilograms of working medium pressure rise and temperature rise process 83, 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, M 3 67 kilograms of working medium depressurization and expansion process 67, M 3 kilograms of working medium exothermic cooling process 78, M 1 kilogram of working medium exothermic condensation process 81—a total of 11 processes.
  • the endothermic heat in the high temperature section is generally provided by an external heat source
  • the endothermic heat in the low temperature section is provided by an external heat source or by M 3 kilograms of working medium are provided by exothermic heat (regeneration) of the 78 process, or provided by the two together; wherein, M 3 kilograms of working fluid are provided by the endothermic heat in the high temperature section of the 34 process, and can also be exothermic by the 56 process.
  • Low temperature section to provide.
  • the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided externally;
  • the boosting process 83 of M 2 kg working medium, and The pressure increasing process 45 of M 3 kg working medium is generally completed by a compressor;
  • the depressurizing and expanding process 67 of M 3 kg working medium, and the depressurizing and expanding process fg of M 1 kg working medium are generally completed by an expander;
  • the pressure expansion work is used for boosting the power consumption, or when the pressure reducing expansion work is greater than the boosting power consumption, the mechanical energy is output externally, or when the pressure reducing 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 unit.
  • Working fluid combined cycle is used for boosting the power consumption, or when the pressure reducing expansion work is greater than the boosting power consumption, the mechanical energy is output externally, or when the pressure reducing expansion work is less than the
  • 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 2f, M 1 kg working medium depressurization and expansion process fg, M 1 kg working medium endothermic heating process g5, M 2 kilogram booster working fluid heating process 93, M 2 kilogram refrigerant endothermic heating process 34, M 2 kilogram booster working fluid heating process 45, M 3 kilogram working substance boosting the heating process 56, M 3 67 kilograms of working medium exothermic and cooling process 67, M 3 kilograms of working medium decompression and expansion process 78, M 3 kilograms of working medium exothermic cooling process 89, M 1 kilogram of working medium exothermic condensation process 91—a total of 12 processes.
  • M 1 Endothermic process - M 1 kg working medium carries out two processes of 2f and g5, the endothermic heat in the high temperature section is generally provided by an external heat source, and the endothermic process in the low temperature section is carried out by an external heat source or M 3 kg working medium for the 89 process exothermic (heat recovery) to provide, or jointly by both;
  • M 2 kilogram endothermic working medium during the high temperature section 34 is typically provided by an external heat source, the endothermic low temperature section by an external heat source or by a M 3
  • the high temperature section exothermic (regeneration) of the 89 process is provided by kilograms of working fluid, or provided by the two together; wherein, M 1 kilogram of working fluid is performed in the g5 process and M 2 kilograms of the working fluid is performed in the high-temperature section of the 34 process.
  • Endothermic can also be provided by the low temperature section of the M 3 kg working medium exothermic 67 process.
  • the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or provided by the outside;
  • the boosting process 93 and 45 of M 2 kg working medium , and the boosting process 56 of M 3 kilograms of working fluid is generally completed by a compressor;
  • the depressurization and expansion process 78 of M 3 kilograms of working fluid, and the depressurization and expansion process fg of M 1 kilogram of working fluid are generally completed by an expander ;
  • the buck expansion work is used for the boost power consumption, or when the buck expansion work is greater than the boost power consumption, the mechanical energy is output externally, or when the buck expansion work is smaller than the boost power consumption, the mechanical energy is input from the outside at the same time, forming a second Simplex-like 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 2f, M 1 kg working medium depressurization and expansion process fg, M 1 kg working medium endothermic Heating process g4, M 2 kilograms of working medium pressure rise and temperature rise process 93, M 2 kilograms of working medium endothermic temperature rise process 35, M 1 kilogram of working medium pressure rise and temperature rise process 45, M 3 kilograms of working medium pressure rise and temperature rise process 56, M 3 67 kilograms of working medium exothermic and cooling process 67, M 3 kilograms of working medium decompression and expansion process 78, M 3 kilograms of working medium exothermic cooling process 89, M 1 kilogram of working medium exothermic condensation process 91—a total of 12 processes.
  • the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or provided by the outside; M 1 kg working medium
  • the process fg 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 and external mechanical energy is simultaneously output, or when the depressurizing expansion work is less than the boosting power consumption At the same time, mechanical energy is input from the outside to form 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 2f, M 1 kg working medium depressurization and expansion process fg, M 1 kg working medium endothermic Heating process g3, M 2 kilograms of working medium pressure rise and temperature rise process c3, M 3 kilograms of working medium endothermic heating 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 Working fluid pressure reduction 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 fluid exothermic cooling process 79, M 3 Kg working medium exothermic cooling process 9c, M 1 kg working medium exothermic condensation process c1 - a total of 14 processes.
  • the endothermic heat in the high temperature section is generally provided by an external heat source, and the endothermic heat in the low temperature section is provided by an external heat source or by X 79 kg working fluid exothermic process, (M 3 -X) 9c kg working fluid exothermic process (recuperator) is provided, three or jointly provided by; wherein, M 3 kg for 34 refrigerants
  • the heat absorption in the high temperature section of the process can also be provided by the (M 3 -X) kilogram working medium exothermic 68 process.
  • the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or provided externally; M 2 kg working medium
  • the boosting process c3, and The boosting process 45 of M 3 kilograms of working fluid is generally completed by a compressor; the depressurization process of X kilograms of working fluid 67, the depressurization process of (M 3 -X) kilograms of working fluid 89, and the depressurization of M 1 kilogram of working fluid
  • the expansion process fg 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, mechanical energy is simultaneously output to the outside, or the depressurization expansion work is less than the booster power consumption At the same time, mechanical energy is input from the outside to form 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 2f, M 1 kg working medium depressurization and expansion process fg, M 1 kg working medium endothermic Heating process g3, M 1 kg working medium pressure increasing 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, M 2 kg refrigerant boost heating process e7, M 2 kg refrigerant endothermic heating process 78, M 2 kg refrigerant boost heating process 89, M 2 kg refrigerant heat cooling process 9c, M 2 kg refrigerant expansion buck Process cd, M 3 kg working medium exothermic cooling process de, M 1 kg working medium exothermic condensation process e1 - a total of 15 processes.
  • the endothermic heat in the high temperature section is generally provided by an external heat source, and the endothermic heat in the low temperature section is provided by an external heat source or It is provided by the combined heat release (regeneration) of the M 1 kg working medium into the 6d process and the M 3 kg working medium in the de process, or provided by both; wherein—M 1 kg working medium is carried out in the high temperature section of the g3 process
  • the endothermic heat of 45 can also be provided by the low temperature section of the process of exothermic 45; the endotherm of M 2 kg working medium in the high temperature section of the process of 78 can also be provided by the low temperature section of the process of exothermic 9c.
  • 3Energy conversion process - the boosting process 12 of M 1 kg working medium is 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 process e7 and 89 of the M 2 kg working medium and M 1 kilogram of working fluid boosting process 34, is generally accomplished by the compressor;
  • 56 is, M 1 kilogram refrigerant expansion process down fg, and M 2 kilogram drop of the working medium M 1 kilogram of working fluid depressurisation
  • the pressure process cd is generally completed by the expander; the pressure reduction expansion work is used for the boost power consumption, or the pressure reduction expansion work is greater than the pressure boost power consumption and the external mechanical energy is output at the same time, or the pressure reduction expansion work is smaller than the pressure boost power consumption At the same time, mechanical energy is input from the outside to form 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 is mixed with M kg superheated steam, endothermic heating process 2b, (M 1 +M) kg working medium endothermic heating, vaporization and superheating Process bf, (M 1 +M) kilogram working fluid pressure reduction and expansion fg, (M 1 +M) kilogram working fluid endothermic heating process g3, M 2 kilogram working fluid pressure boosting and heating process 8a, M kilogram working fluid and M 1 Kilogram working medium mixing exothermic condensation process ab, (M 2 -M) kilogram working medium pressure boosting heating process a3, M 3 kilogram working medium endothermic heating process 34, M 3 kilogram working medium pressure boosting heating process 45, M 3 kilogram Working fluid exothermic cooling process 56, M 3 kg working fluid decompression and expansion process 67, M 3 kg working fluid exothermic cooling process 78, M 1 kg working fluid exothermic condensation process 81—a total of 14 processes.
  • M 1 Endothermic process the endothermic heat of M 1 kg working medium for 2b process comes from the mixing exotherm of M kg superheated steam, (M 1 +M) kg working medium for bf, g3 two processes and M 3 kg working medium for two processes 34 process, the heat absorption of the high temperature section is generally provided by an external heat source, and the heat absorption of the low temperature section is provided by an external heat source or by the exothermic heat (regeneration) of the 78 process carried out by M 3 kg working medium, or provided by both. ;
  • M 3 kg working medium carries out the heat absorption of the high temperature section of the 34 process, and can also be provided by the low temperature section of its exothermic 56 process.
  • M 1 kilogram booster working fluid 12 is generally accomplished by the process of the circulation pump, the circulation pump power consumption of expansion work may be provided or supplied externally;
  • M 2 kilogram working fluid boosting process and 8a ( M 2 -M) the boosting process a3 of the kilogram working fluid, and the boosting process 45 of the M 3 kilogram working fluid, are generally completed by the compressor;
  • the mass depressurization and expansion process fg 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 output at the same time, or the depressurizing expansion work is smaller than the boosting power consumption.
  • the pressure is consumed, mechanical energy is input from the outside at the same time, forming the second type of single working medium 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 bf, (M 1 +M) kilogram working fluid pressure reduction and expansion fg, (M 1 +M) kilogram working fluid endothermic heating process g5, M 2 kilogram working fluid pressure boosting and heating process 9a, M kilogram working fluid and M Mixing exothermic condensation process ab of 1 kilogram of working fluid, (M 2 -M) kilogram working fluid pressure boosting and heating process a3, (M 2 -M) kilogram working fluid endothermic heating process 34, (M 2 -M) kilogram working fluid Mass boosting and heating process 45, M 3 kg working fluid boosting and heating process 56, M 3 kg working fluid exothermic cooling process 67, M 3 kg working fluid decompression and expansion process 78, M 3 kg working fluid exothermic cooling process 89 , M 1 kg working medium ex
  • the endothermic heat of M 1 kg working medium for 2b process comes from the mixed exothermic heat of M kg superheated steam, and (M 1 +M) kg working medium undergoes two processes of bf and g5, and the endothermic heat in the high temperature section It is generally provided by an external heat source, and the endothermic heat in the low temperature section is provided by an external heat source or by the exothermic (return heat) of the 89 process performed by M 3 kg working medium, or provided by both; (M 2 -M) kg
  • the endothermic heat in the high temperature section of the 34 process with the working medium is generally provided by an external heat source, and the endothermic heat in the low temperature section is provided by an external heat source or by the exotherm (regeneration) of the high temperature section of the 89 process carried out by M 3 kg working medium, or by two.
  • (M 1 +M) kilogram working fluid performs the g5 process and (M 2 -M) kilogram working fluid performs heat absorption in the high temperature section of the 34 process, and can also be exothermic by the M 3 kilogram working fluid in the 67 process. Low temperature section to provide.
  • the boosting process 12 of M 1 kg working medium is generally completed by a 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 fg of kilogram working medium 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 output at the same time, or the depressurizing expansion work
  • the power consumption 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 bf, (M 1 +M) kilogram working fluid pressure reduction and expansion fg, (M 1 +M) kilogram working fluid endothermic heating process g4, M 2 kilogram working fluid pressure boosting and heating process 9a, M kilogram working fluid and M Mixing exothermic condensation process ab of 1 kilogram of working fluid, (M 2 -M) kilogram of working fluid pressure boosting and heating process a3, (M 2 -M) kilogram of working fluid endothermic heating process 35, (M 1 +M) kilogram of working fluid Mass boosting and heating process 45, M 3 kg working fluid boosting and heating process 56, M 3 kg working fluid exothermic cooling process 67, M 3 kg working fluid decompression and expansion process 78, M 3 kg working fluid exothermic cooling process 89 , M 1 kg working
  • the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • the boosting process 56 of the kilogram working fluid is generally completed by the compressor;
  • the depressurization and expansion process 78 of kilograms of working fluid, and the depressurization and expansion process fg of M 1 kilogram of working fluid 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 bf, (M 1 +M) kilogram working fluid pressure reduction and expansion fg, (M 1 +M) kilogram working fluid endothermic heating process g3, M 2 kilogram working fluid pressure boosting and heating process ca, M kilogram working fluid and M Mixing exothermic condensation process ab of 1 kilogram of working fluid, (M 2 -M) kilogram of working fluid pressure-increasing and heating process a3, M 3 kilograms of working fluid endothermic heating process 34, M 3 kilograms of working fluid pressure-boosting and heating process 45, M 3 kilograms of working fluid exothermic cooling process 56, X kilograms of working fluid depressurization and expansion process 67, (M 3 -X) kilograms of working fluid exothermic cooling process 68, (M 3 -X) kilograms of
  • M 1 Endothermic process - the endothermic heat of M 1 kg working medium for 2b process comes from the mixing exotherm of M kg superheated steam, (M 1 +M) kg working medium for bf, g3 two processes and M 3 kg working medium for two processes 34 process, the endothermic high temperature sections typically provided by an external heat source, the exothermic endothermic low temperature section 79 of a process working fluid X kg or by an external heat source, M 3 kg refrigerant 9c exothermic process (heat recovery ) to provide, or provided by the three together; wherein, M 3 kilograms of working medium endothermic in the high temperature section of the 34 process can also be provided by (M 3 -X) kilograms of working medium exothermic 68 process.
  • M 1 kilogram booster working fluid 12 is generally accomplished by the process of the circulation pump, the circulation pump power consumption of expansion work may be provided or supplied externally;
  • M 2 kilogram working fluid boosting process and ca M 2 -M) the boosting process a3 of the kilogram working fluid, and the boosting process 45 of the M 3 kilogram working fluid are generally completed by the compressor;
  • the qualitative decompression process 89 , and the decompression and expansion process fg of M 1 kg working medium are generally completed by the 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.
  • 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 bf, (M 1 +M) kilogram working fluid pressure reduction and expansion fg, (M 1 +M) kilogram working fluid endothermic heating process g3, (M 1 +M) kilogram working fluid pressure boosting and heating process 34, (M 1 +M) kilogram working fluid exothermic cooling process 45, (M 1 +M) kilogram working fluid depressurization and expansion process 56, (M 1 +M) kilogram working fluid exothermic cooling process 6d, M 2 kilogram working fluid boosting pressure Heating process ea, mixing exothermic condensation process ab of M kg working fluid and M 1 kg working fluid, (M 2 -M) kg working fluid pressure increasing process a7, (M 2 -M) kg working fluid endothermic heating process 78, (M 2 -M) kilogram working fluid pressure rise
  • (M 1 +M) kilogram working medium carries out the absorption of heat in the high temperature section of the g3 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 absorption of the high temperature section of the 78 process Heat can also be provided by the low temperature section of its exothermic 9c process.
  • Energy conversion process - the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside;
  • the buck expansion work is used for the boost power consumption, or when the buck expansion work is greater than the boost power consumption, the mechanical energy is output externally, or when the buck expansion work is smaller than the boost power consumption, the mechanical energy is input from the outside at the same time, forming the first step.
  • Class II single working fluid combined cycle
  • 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 the medium-temperature heat source and the variable-medium-temperature heat source.

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Abstract

A second type of single working medium combined cycle, relating to the technical field of thermodynamics and heat pumps. The second type of single working medium combined cycle means a closed process consisting of eleven processes respectively or jointly performed by a work medium consisting of M1 kg of work medium and M2 kg of work medium: a pressure boosting process 12 of M1 kg of work medium, an endothermic vaporization process 2f of M1 kg of work medium, a pressure reduction process fg of M1 kg of work medium, an endothermic process g3 of M1 kg of work medium, a pressure boosting process 83 of M2 kg of work medium, an endothermic process 34 of M3 kg of work medium, a pressure boosting process 45 of M3 kg of work medium, an exothermic process 56 of M3 kg of work medium, a pressure reduction process 67 of M3 kg of work medium, an exothermic process 78 of M3 kg of work medium, and an exothermic condensation process 81 of M1 kg of work medium, wherein M3 is the sum of M1 and M2.

Description

第二类单工质联合循环The second type of single working fluid combined cycle 技术领域:Technical field:
本发明属于热力学与制热技术领域。The invention belongs to the technical field of thermodynamics and heating.
背景技术:Background technique:
冷、热和动力需求,为人类生活与生产当中所常见;人们经常需要利用热能来实现制冷、供热或转化为动力。在实现上述目的之过程中,将面临多方面的条件限制,包括能源的类型、品位和数量,用户需求的类型、品位和数量,环境温度,工作介质的类型,设备的流程、结构和制造成本等。Cold, heat and power needs are common in human life and production; people often need to use thermal energy to achieve cooling, heating or conversion into power. In the process of achieving the above goals, there will be many constraints, including the type, grade and quantity of energy, the type, grade and quantity of user requirements, ambient temperature, type of working medium, equipment flow, structure and manufacturing cost Wait.
在热科学基础理论体系中,热力循环的创建及发展应用将对能源的科学生产和科学利用起到重大作用,将积极推动社会进步和生产力发展。本发明针对变温型中温热资源和高温热需求,也考虑到同时利用动力驱动或兼顾动力需求,提出了采用相变过程或相变过程为主实现低温放热,采用变温过程或变温过程为主实现中温吸热,灵活适应高温热源,以及采用变温过程实现高温供热的第二类单工质联合循环。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, flexibly adapts to high temperature heat source, and adopts the second type of single working medium combined cycle to realize high temperature heat supply through temperature change process.
发明内容:Invention content:
本发明主要目的是要提供第二类单工质联合循环,具体发明内容分项阐述如下: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:
1.第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十一个过程——M 1千克工质升压过程12,M 1千克工质吸热汽化过程2f,M 1千克工质降压过程fg,M 1千克工质吸热过程g3,M 2千克工质升压过程83,M 3千克工质吸热过程34,M 3千克工质升压过程45,M 3千克工质放热过程56,M 3千克工质降压过程67,M 3千克工质放热过程78,M 1千克工质放热冷凝过程81——组成的闭合过程;其中,M 3为M 1与M 2之和。 1. The second type of single working fluid combined cycle refers to eleven processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g3, M 2 kg working fluid boosting process 83, M 3 kg working fluid endothermic process 34, M 3 Kilogram working medium pressure boosting process 45, M 3 kg working medium exothermic process 56, M 3 kg working medium depressurization process 67, M 3 kg working medium exothermic process 78, M 1 kg working medium exothermic condensation process 81—— A closed process of composition; where M 3 is the sum of M 1 and M 2 .
2.第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十二个过程——M 1千克工质升压过程12,M 2千克工质升压过程93,M 2千克工质吸热过程34,M 1千克工质吸热汽化过程2f,M 1千克工质降压过程fg,M 1千克工质吸热过程g5,M 2千克工质升压过程45,M 3千克工质升压过程56,M 3千克工质放热过程67,M 3千克工质降压过程78,M 3千克工质放热过程89,M 1千克工质放热冷凝过程91——组成的闭合过程;其中,M 3为M 1与M 2之和。 2. The second type of single working fluid combined cycle refers to the twelve processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 2 kg Working fluid boosting process 93, M 2 kg working fluid endothermic process 34, M 1 kg working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g5, M 2 Kilogram 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 depressurizing process 78, M 3 kg working fluid exothermic process 89, M 1 Kilogram working fluid exothermic condensation process 91 - a closed process of composition; wherein, M 3 is the sum of M 1 and M 2 .
3.第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十二个过程——M 1千克工质升压过程12,M 1千克工质吸热汽化过程2f,M 1千克工质降压过程fg,M 1千克工质吸热过程g4,M 2千克工质升压过程93,M 2千克工质吸热过程35,M 1千克工质升压过程45,M 3千克工质升压过程56,M 3千克工质放热过程67,M 3千克工质降压过程78,M 3千克工质放热过程89,M 1千克工质放热冷凝过程91——组成的闭合过程;其中,M 3为M 1与M 2之和。 3. The second type of single working fluid combined cycle refers to the twelve processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g4, M 2 kg working fluid boosting process 93, M 2 kg working fluid endothermic process 35, M 1 Kilogram 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 depressurizing process 78, M 3 kg working fluid exothermic process 89, M 1 Kilogram working fluid exothermic condensation process 91 - a closed process of composition; wherein, M 3 is the sum of M 1 and M 2 .
4.第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十四个过程——M 1千克工质升压过程12,M 1千克工质吸热汽化过程2f,M 1千克工质降压过程fg,M 1千克工质吸热过程g3,M 2千克工质升压过程c3,M 3千克工质吸热过程34, M 3千克工质升压过程45,M 3千克工质放热过程56,X千克工质降压过程67,(M 3-X)千克工质放热过程68,(M 3-X)千克工质降压过程89,X千克工质放热过程79,M 3千克工质放热过程9c,M 1千克工质放热冷凝过程c1——组成的闭合过程;其中,M 3为M 1与M 2之和。 4. The second type of single working fluid combined cycle refers to the fourteen processes carried out separately or jointly by working fluids consisting of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g3, M 2 kg working fluid boosting process c3, M 3 kg working fluid endothermic process 34, M 3 kg bootstrapping working fluid 45, M 3 kg refrigerant exothermic process 56, X kg working fluid depressurisation 67, (M 3 -X) kg refrigerant exothermic process 68, (M 3 -X) kg refrigerants Depressurization process 89, X kilogram working fluid exothermic process 79, M 3 kilogram working fluid exothermic process 9c, M 1 kilogram working fluid exothermic condensation process c1—a closed process of composition; wherein, M 3 is M 1 and M 2 sum.
5.第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十五个过程——M 1千克工质升压过程12,M 1千克工质吸热汽化过程2f,M 1千克工质降压过程fg,M 1千克工质吸热过程g3,M 1千克工质升压过程34,M 1千克工质放热过程45,M 1千克工质降压过56,M 1千克工质放热过程6d,M 2千克工质升压过程e7,M 2千克工质吸热过程78,M 2千克工质升压过程89,M 2千克工质放热过程9c,M 2千克工质降压过程cd,M 3千克工质放热过程de,M 1千克工质放热冷凝过程e1——组成的闭合过程;其中,M 3为M 1与M 2之和。 5. The second type of single working fluid combined cycle refers to the fifteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g3, M 1 kg working fluid boosting process 34, M 1 kg working fluid exothermic process 45, M 1 Kilogram working medium is depressurized by 56, M 1 kg working medium exothermic process 6d, M 2 kg working medium boosting process e7, M 2 kg working medium endothermic process 78, M 2 kg working medium boosting process 89, M 2 Kg working medium exothermic process 9c, M 2 kg working medium depressurization process cd, M 3 kg working medium exothermic process de, M 1 kg working medium exothermic condensation process e1 - a closed process composed of; wherein, M 3 is M 1 and M 2 sum.
6.第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十四个过程——M 1千克工质升压过程12,M 1千克工质吸热过程2b,(M 1+M)千克工质吸热汽化过程bf,(M 1+M)千克工质降压过程fg,(M 1+M)千克工质吸热过程g3,M 2千克工质升压过程8a,M千克工质放热冷凝过程ab,(M 2-M)千克工质升压过程a3,M 3千克工质吸热过程34,M 3千克工质升压过程45,M 3千克工质放热过程56,M 3千克工质降压过程67,M 3千克工质放热过程78,M 1千克工质放热冷凝过程81——组成的闭合过程;其中,M 3为M 1与M 2之和。 6. The second type of single working fluid combined cycle refers to the fourteen processes carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic process 2b, (M 1 +M) kilogram working fluid endothermic vaporization process bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g3, M 2 kg working fluid boosting process 8a, M 2 kg working fluid exothermic condensation process ab, (M 2 -M) kg working fluid boosting process a3, M 3 kg working fluid endothermic process 34, M 3 kg working fluid liter Pressing 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 - closed process of composition ; Wherein, M 3 is the sum of M 1 and M 2.
7.第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十五个过程——M 1千克工质升压过程12,M 1千克工质吸热过程2b,M 2千克工质升压过程9a,M千克工质放热冷凝过程ab,(M 2-M)千克工质升压过程a3,(M 2-M)千克工质吸热过程34,(M 1+M)千克工质吸热汽化过程bf,(M 1+M)千克工质降压过程fg,(M 1+M)千克工质吸热过程g5,(M 2-M)千克工质升压过程45,M 3千克工质升压过程56,M 3千克工质放热过程67,M 3千克工质降压过程78,M 3千克工质放热过程89,M 1千克工质放热冷凝过程91——组成的闭合过程;其中,M 3为M 1与M 2之和。 7. The second type of single working fluid combined cycle refers to fifteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting 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 bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g5, (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 exothermic process 89, M 1 kg working medium exothermic condensation process 91 - a closed process of composition; wherein, M 3 is the sum of M 1 and M 2.
8.第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十五个过程——M 1千克工质升压过程12,M 1千克工质吸热过程2b,M 2千克工质升压过程9a,M千克工质放热冷凝过程ab,(M 2-M)千克工质升压过程a3,(M 1+M)千克工质吸热汽化过程bf,(M 1+M)千克工质降压过程fg,(M 1+M)千克工质吸热过程g4,(M 2-M)千克工质吸热过程35,(M 1+M)千克工质升压过程45,M 3千克工质升压过程56,M 3千克工质放热过程67,M 3千克工质降压过程78,M 3千克工质放热过程89,M 1千克工质放热冷凝过程91——组成的闭合过程;其中,M 3为M 1与M 2之和。 8. The second type of single working fluid combined cycle refers to the fifteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting 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 bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g4, (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 exothermic process 89, M 1 kilogram of working medium exothermic condensation process 91 - a closed process of composition; wherein, M 3 is the sum of M 1 and M 2.
9.第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十七个过程——M 1千克工质升压过程12,M 1千克工质吸热过程2b,(M 1+M)千克工质吸热汽化过程bf,(M 1+M)千克工质降压过程fg,(M 1+M)千克工质吸热过程g3,M 2千克工质升压过程ca,M千克工质放热冷凝过程ab,(M 2-M)千克工质升压过程a3,M 3千克工质吸热过程34,M 3千克工质升压过程45,M 3千克工质放热过程56,X千克工质降压过程67,(M 3-X)千克工质放热过程68,(M 3-X)千克工质降压过程89,X千克 工质放热过程79,M 3千克工质放热过程9c,M 1千克工质放热冷凝过程c1——组成的闭合过程;其中,M 3为M 1与M 2之和。 9. The second type of single working fluid combined cycle refers to the working fluids composed of M 1 kg and M 2 kg, which are carried out separately or together in seventeen processes - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic process 2b, (M 1 +M) kilogram working fluid endothermic vaporization process bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g3, M 2 kg working fluid boosting process ca, M working fluid exothermic condensation process ab, (M 2 -M) kg working fluid boosting process a3, M 3 kg working fluid endothermic process 34, M 3 kg working fluid liter Pressure 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) kg working fluid depressurization process 89 , X kilogram working fluid exothermic process 79, M 3 kilogram working fluid exothermic process 9c, M 1 kilogram working fluid exothermic condensation process c1 - a closed process composed of; wherein, M 3 is the sum of M 1 and M 2.
10.第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十八个过程——M 1千克工质升压过程12,M 1千克工质吸热过程2b,(M 1+M)千克工质吸热汽化过程bf,(M 1+M)千克工质降压过程fg,(M 1+M)千克工质吸热过程g3,(M 1+M)千克工质升压过程34,(M 1+M)千克工质放热过程45,(M 1+M)千克工质降压过56,(M 1+M)千克工质放热过程6d,M 2千克工质升压过程ea,M千克工质放热冷凝过程ab,(M 2-M)千克工质升压过程a7,(M 2-M)千克工质吸热过程78,(M 2-M)千克工质升压过程89,(M 2-M)千克工质放热过程9c,(M 2-M)千克工质降压过程cd,M 3千克工质放热过程de,M 1千克工质放热冷凝过程e1——组成的闭合过程;其中,M 3为M 1与M 2之和。 10. The second type of single working fluid combined cycle refers to the eighteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg Working fluid endothermic process 2b, (M 1 +M) kilogram working fluid endothermic vaporization process bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g3, (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) kilogram working fluid Mass exothermic process 6d, 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 absorption process Thermal process 78, (M 2 -M) kilogram working fluid boosting process 89, (M 2 -M) kilogram working fluid exothermic process 9c, (M 2 -M) kilogram working fluid depressurizing process cd, M 3 kilogram working fluid Mass exothermic process de, M 1 kg working substance exothermic condensation process e1 - a closed process of composition; wherein, M 3 is the sum of M 1 and M 2.
附图说明:Description of drawings:
图1/10是依据本发明所提供的第二类单工质联合循环第1种原则性流程示例图。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.
图2/10是依据本发明所提供的第二类单工质联合循环第2种原则性流程示例图。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.
图3/10是依据本发明所提供的第二类单工质联合循环第3种原则性流程示例图。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.
图4/10是依据本发明所提供的第二类单工质联合循环第4种原则性流程示例图。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.
图5/10是依据本发明所提供的第二类单工质联合循环第5种原则性流程示例图。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.
图6/10是依据本发明所提供的第二类单工质联合循环第6种原则性流程示例图。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.
图7/10是依据本发明所提供的第二类单工质联合循环第7种原则性流程示例图。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.
图8/10是依据本发明所提供的第二类单工质联合循环第8种原则性流程示例图。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.
图9/10是依据本发明所提供的第二类单工质联合循环第9种原则性流程示例图。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.
图10/10是依据本发明所提供的第二类单工质联合循环第10种原则性流程示例图。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.
具体实施方式:detailed description:
首先要说明的是,在结构和流程的表述上,非必要情况下不重复进行,对显而易见的流程不作表述;下述各示例中,M 3为M 1与M 2之和;下面结合附图和实例详细描述本发明。 First of all, it should be noted that, in the description of structure and flow, it is not repeated unless necessary, and the obvious flow is not described; in the following examples, M 3 is the sum of M 1 and M 2 ; below in conjunction with the accompanying drawings The invention is described in detail with examples.
图1/10所示T-s图中的第二类单工质联合循环示例是这样进行的:The second type of single-agent combined cycle example in the T-s diagram shown in Fig. 1/10 proceeds as follows:
(1)从循环过程上看:(1) From the perspective of the cycle process:
工作介质进行——M 1千克工质冷凝液升压过程12,M 1千克工质吸热升温、汽化和过热过程2f,M 1千克工质降压膨胀过程fg,M 1千克工质吸热升温过程g3,M 2千克工质升压升温过程83,M 3千克工质吸热升温过程34,M 3千克工质升压升温过程45,M 3千克工质放热降温过程56,M 3千克工质降压膨胀过程67,M 3千克工质放热降温过程78,M 1千克工质放热冷凝过程81——共11个过程。 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 2f, M 1 kg working medium depressurization and expansion process fg, M 1 kg working medium endothermic Heating process g3, M 2 kilograms of working medium pressure rise and temperature rise process 83, 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, M 3 67 kilograms of working medium depressurization and expansion process 67, M 3 kilograms of working medium exothermic cooling process 78, M 1 kilogram of working medium exothermic condensation process 81—a total of 11 processes.
(2)从能量转换上看:(2) From the perspective of energy conversion:
①吸热过程——M 1千克工质进行2f、g3两个过程和M 3千克工质进行34过程,高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由M 3千克工质进行78过程的放热(回热)来提供,或由二者共同来提供;其中,M 3千克工质进行34过程高温段的吸热,还可由其放热56过程的低温段来提供。 ① Endothermic process - M 1 kg working fluid for 2f and g3 processes and M 3 kg working fluid for 34 process, the endothermic heat in the high temperature section is generally provided by an external heat source, and the endothermic heat in the low temperature section is provided by an external heat source or by M 3 kilograms of working medium are provided by exothermic heat (regeneration) of the 78 process, or provided by the two together; wherein, M 3 kilograms of working fluid are provided by the endothermic heat in the high temperature section of the 34 process, and can also be exothermic by the 56 process. Low temperature section to provide.
②放热过程——M 3千克工质进行56过程的放热,对外提供满足相应热需求,其中的 低温段放热或可用于34过程高温段吸热(回热);M 3千克工质进行78过程的放热,可向冷却介质放热,或者部分或全部用于联合循环其它过程的吸热需求,无用部分向低温热源(环境)释放;M 1千克工质进行81过程的放热,一般向低温热源(环境)释放。 ②Exothermic process - M 3 kg working medium carries out the exothermic heat of 56 process, and provides external heat to meet the corresponding heat demand, in which the low temperature section exothermic or can be used for 34 process high temperature section heat absorption (regeneration); M 3 kg working medium 78 for process heat, can be cooled to the heat medium or heat absorbing part or all of the needs for other combined cycle processes, unnecessary part to the low temperature heat release (environment); heat the working medium M 1 kilogram process for 81 , generally released to a low temperature heat source (environment).
③能量转换过程——M 1千克工质的升压过程12一般由循环泵来完成,循环泵的耗功可由膨胀作功提供或由外部提供;M 2千克工质的升压过程83,以及M 3千克工质的升压过程45,一般由压缩机来完成;M 3千克工质的降压膨胀过程67,以及M 1千克工质降压膨胀过程fg,一般由膨胀机来完成;降压膨胀作功用于升压耗功,或降压膨胀作功大于升压耗功时同时对外输出机械能,或降压膨胀作功小于升压耗功时同时由外部投入机械能,形成第二类单工质联合循环。 ③ Energy conversion process - the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided externally; The boosting process 83 of M 2 kg working medium, and The pressure increasing process 45 of M 3 kg working medium is generally completed by a compressor; the depressurizing and expanding process 67 of M 3 kg working medium, and the depressurizing and expanding process fg of M 1 kg working medium are generally completed by an expander; The pressure expansion work is used for boosting the power consumption, or when the pressure reducing expansion work is greater than the boosting power consumption, the mechanical energy is output externally, or when the pressure reducing 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 unit. Working fluid combined cycle.
图2/10所示T-s图中的第二类单工质联合循环示例是这样进行的:The example of the second type of simplex combined cycle in the T-s diagram shown in Fig. 2/10 proceeds like this:
(1)从循环过程上看:(1) From the perspective of the cycle process:
工作介质进行——M 1千克工质冷凝液升压过程12,M 1千克工质吸热升温、汽化和过热过程2f,M 1千克工质降压膨胀过程fg,M 1千克工质吸热升温过程g5,M 2千克工质升压升温过程93,M 2千克工质吸热升温过程34,M 2千克工质升压升温过程45,M 3千克工质升压升温过程56,M 3千克工质放热降温过程67,M 3千克工质降压膨胀过程78,M 3千克工质放热降温过程89,M 1千克工质放热冷凝过程91——共12个过程。 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 2f, M 1 kg working medium depressurization and expansion process fg, M 1 kg working medium endothermic heating process g5, M 2 kilogram booster working fluid heating process 93, M 2 kilogram refrigerant endothermic heating process 34, M 2 kilogram booster working fluid heating process 45, M 3 kilogram working substance boosting the heating process 56, M 3 67 kilograms of working medium exothermic and cooling process 67, M 3 kilograms of working medium decompression and expansion process 78, M 3 kilograms of working medium exothermic cooling process 89, M 1 kilogram of working medium exothermic condensation process 91—a total of 12 processes.
(2)从能量转换上看:(2) From the perspective of energy conversion:
①吸热过程——M 1千克工质进行2f、g5两个过程,其高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由M 3千克工质进行89过程的放热(回热)来提供,或由二者共同来提供;M 2千克工质进行34过程高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由M 3千克工质进行89过程的高温段放热(回热)来提供,或由二者共同来提供;其中,M 1千克工质进行g5过程和M 2千克工质进行34过程的高温段吸热,还可由M 3千克工质放热67过程的低温段来提供。 ① Endothermic process - M 1 kg working medium carries out two processes of 2f and g5, the endothermic heat in the high temperature section is generally provided by an external heat source, and the endothermic process in the low temperature section is carried out by an external heat source or M 3 kg working medium for the 89 process exothermic (heat recovery) to provide, or jointly by both; M 2 kilogram endothermic working medium during the high temperature section 34 is typically provided by an external heat source, the endothermic low temperature section by an external heat source or by a M 3 The high temperature section exothermic (regeneration) of the 89 process is provided by kilograms of working fluid, or provided by the two together; wherein, M 1 kilogram of working fluid is performed in the g5 process and M 2 kilograms of the working fluid is performed in the high-temperature section of the 34 process. Endothermic , can also be provided by the low temperature section of the M 3 kg working medium exothermic 67 process.
②放热过程——M 3千克工质进行67过程的放热,对外提供满足相应热需求,其中的低温段放热或可用于M 1千克工质进行g5过程和M 2千克工质进行34过程的高温段吸热;M 3千克工质进行89过程的放热,可向冷却介质放热,或者部分或全部用于联合循环其它过程的吸热需求,无用部分向低温热源(环境)释放;M 1千克工质进行91过程的放热,一般向低温热源(环境)释放。 ②Exothermic process——The exothermic process of M 3 kg working medium for 67 process is provided externally to meet the corresponding heat demand, and the exothermic heat in the low temperature section can be used for M 1 kg working medium for g5 process and M 2 kg working medium for 34 process The high temperature section of the process absorbs heat; M 3 kg working medium is exothermic in the 89 process, which can be exothermic to the cooling medium, or part or all of it is used for the endothermic demand of other processes in the combined cycle, and the useless part is released to the low temperature heat source (environment) ; M 1 kg working medium is exothermic in the 91 process, generally released to a low temperature heat source (environment).
③能量转换过程——M 1千克工质的升压过程12一般由循环泵来完成,循环泵的耗功可由膨胀作功提供或由外部提供;M 2千克工质的升压过程93和45,以及M 3千克工质的升压过程56,一般由压缩机来完成;M 3千克工质的降压膨胀过程78,以及M 1千克工质降压膨胀过程fg,一般由膨胀机来完成;降压膨胀作功用于升压耗功,或降压膨胀作功大于升压耗功时同时对外输出机械能,或降压膨胀作功小于升压耗功时同时由外部投入机械能,形成第二类单工质联合循环。 ③ Energy conversion process - the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or provided by the outside; The boosting process 93 and 45 of M 2 kg working medium , and the boosting process 56 of M 3 kilograms of working fluid is generally completed by a compressor; the depressurization and expansion process 78 of M 3 kilograms of working fluid, and the depressurization and expansion process fg of M 1 kilogram of working fluid are generally completed by an expander ; The buck expansion work is used for the boost power consumption, or when the buck expansion work is greater than the boost power consumption, the mechanical energy is output externally, or when the buck expansion work is smaller than the boost power consumption, the mechanical energy is input from the outside at the same time, forming a second Simplex-like combined cycle.
图3/10所示T-s图中的第二类单工质联合循环示例是这样进行的:The second type of single-agent combined cycle example in the T-s diagram shown in Fig. 3/10 proceeds as follows:
(1)从循环过程上看:(1) From the perspective of the cycle process:
工作介质进行——M 1千克工质冷凝液升压过程12,M 1千克工质吸热升温、汽化和过热过程2f,M 1千克工质降压膨胀过程fg,M 1千克工质吸热升温过程g4,M 2千克工质升 压升温过程93,M 2千克工质吸热升温过程35,M 1千克工质升压升温过程45,M 3千克工质升压升温过程56,M 3千克工质放热降温过程67,M 3千克工质降压膨胀过程78,M 3千克工质放热降温过程89,M 1千克工质放热冷凝过程91——共12个过程。 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 2f, M 1 kg working medium depressurization and expansion process fg, M 1 kg working medium endothermic Heating process g4, M 2 kilograms of working medium pressure rise and temperature rise process 93, M 2 kilograms of working medium endothermic temperature rise process 35, M 1 kilogram of working medium pressure rise and temperature rise process 45, M 3 kilograms of working medium pressure rise and temperature rise process 56, M 3 67 kilograms of working medium exothermic and cooling process 67, M 3 kilograms of working medium decompression and expansion process 78, M 3 kilograms of working medium exothermic cooling process 89, M 1 kilogram of working medium exothermic condensation process 91—a total of 12 processes.
(2)从能量转换上看:(2) From the perspective of energy conversion:
①吸热过程——M 1千克工质进行2f、g4两个过程,其高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由M 3千克工质进行89过程的放热(回热)来提供,或由二者共同来提供;M 2千克工质进行35过程的吸热一般由外部热源来提供,部分低温段吸热或由M 3千克工质进行89过程的放热(回热)来提供;其中,M 1千克工质进行g4过程和M 2千克工质进行35过程的高温段吸热,还可由M 3千克工质放热67过程的低温段来提供。 ① Endothermic process - M 1 kg working medium carries out two processes of 2f and g4, the endothermic heat in the high temperature section is generally provided by an external heat source, and the endothermic heat in the low temperature section is carried out by an external heat source or M 3 kg working medium to carry out the 89 process The exothermic heat (return heat) is provided, or both are provided together; the endotherm of M 2 kg working medium for 35 process is generally provided by an external heat source, and part of the low temperature section is endothermic or M 3 kg working medium for 89 The exotherm (regeneration) of the process is provided; wherein, M 1 kg working medium is subjected to the g4 process and M 2 kg working medium is subjected to the high temperature section of the 35 process to absorb heat, and M 3 kg working medium can also be exothermic. The low temperature section of the 67 process to provide.
②放热过程——M 3千克工质进行67过程的放热,对外提供满足相应热需求,其中的低温段放热或可用于M 1千克工质进行g4过程和M 2千克工质进行35过程的高温段吸热;M 3千克工质进行89过程的放热,可向冷却介质放热,或者部分或全部用于联合循环其它过程的吸热需求,无用部分向低温热源(环境)释放;M 1千克工质进行91过程的放热,一般向低温热源(环境)释放。 ②Exothermic process——The exothermic process of M 3 kg working fluid for 67 process is provided externally to meet the corresponding heat demand, and the exothermic heat in the low temperature section can be used for M 1 kg working fluid for g4 process and M 2 kg working fluid for 35 process The high temperature section of the process absorbs heat; M 3 kg working medium is exothermic in the 89 process, which can be exothermic to the cooling medium, or part or all of it is used for the endothermic demand of other processes in the combined cycle, and the useless part is released to the low temperature heat source (environment) ; M 1 kg working medium is exothermic in the 91 process, generally released to a low temperature heat source (environment).
③能量转换过程——M 1千克工质的升压过程12一般由循环泵来完成,循环泵的耗功可由膨胀作功提供或由外部提供;M 1千克工质的升压过程45,M 2千克工质的升压过程93,以及M 3千克工质的升压过程56,一般由压缩机来完成;M 3千克工质的降压膨胀过程78,以及M 1千克工质降压膨胀过程fg,一般由膨胀机来完成;降压膨胀作功用于升压耗功,或降压膨胀作功大于升压耗功时同时对外输出机械能,或降压膨胀作功小于升压耗功时同时由外部投入机械能,形成第二类单工质联合循环。 ③Energy conversion process ——The boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or provided by the outside; M 1 kg working medium The boosting process 45, M 2 kg of working fluid boosting process 93, and the working medium M 3 kilogram boosting process 56, it is generally accomplished by the compressor; M 3 kilogram down the expansion process of the working fluid 78, and M 1 kilogram expanded working fluid buck The process fg 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 and external mechanical energy is simultaneously output, or when the depressurizing expansion work is less than the boosting power consumption At the same time, mechanical energy is input from the outside to form the second type of single working substance combined cycle.
图4/10所示T-s图中的第二类单工质联合循环示例是这样进行的:The example of the second type of single-agent combined cycle in the T-s diagram shown in Fig. 4/10 proceeds as follows:
(1)从循环过程上看:(1) From the perspective of the cycle process:
工作介质进行——M 1千克工质冷凝液升压过程12,M 1千克工质吸热升温、汽化和过热过程2f,M 1千克工质降压膨胀过程fg,M 1千克工质吸热升温过程g3,M 2千克工质升压升温过程c3,M 3千克工质吸热升温过程34,M 3千克工质升压升温过程45,M 3千克工质放热降温过程56,X千克工质降压膨胀过程67,(M 3-X)千克工质放热降温过程68,(M 3-X)千克工质降压膨胀过程89,X千克工质放热降温过程79,M 3千克工质放热降温过程9c,M 1千克工质放热冷凝过程c1——共14个过程。 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 2f, M 1 kg working medium depressurization and expansion process fg, M 1 kg working medium endothermic Heating process g3, M 2 kilograms of working medium pressure rise and temperature rise process c3, M 3 kilograms of working medium endothermic heating 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 Working fluid pressure reduction 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 fluid exothermic cooling process 79, M 3 Kg working medium exothermic cooling process 9c, M 1 kg working medium exothermic condensation process c1 - a total of 14 processes.
(2)从能量转换上看:(2) From the perspective of energy conversion:
①吸热过程——M 1千克工质进行2f、g3两个过程和M 3千克工质进行34过程,高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由X千克工质进行79过程的放热、(M 3-X)千克工质进行9c过程的放热(回热)来提供,或由三者共同来提供;其中,M 3千克工质进行34过程高温段的吸热,还可由(M 3-X)千克工质放热68过程来提供。 ① Endothermic process - M 1 kg working fluid for 2f and g3 processes and M 3 kg working fluid for 34 process, the endothermic heat in the high temperature section is generally provided by an external heat source, and the endothermic heat in the low temperature section is provided by an external heat source or by X 79 kg working fluid exothermic process, (M 3 -X) 9c kg working fluid exothermic process (recuperator) is provided, three or jointly provided by; wherein, M 3 kg for 34 refrigerants The heat absorption in the high temperature section of the process can also be provided by the (M 3 -X) kilogram working medium exothermic 68 process.
②放热过程——M 3千克工质进行56过程的放热和(M 3-X)千克工质进行68过程的放热,对外提供满足相应热需求,其中的低温段放热或可用于34过程高温段吸热(回热);X千克工质进行79过程的放热、M 3千克工质进行9c过程的放热,可向冷却介质释放,或 者部分或全部用于联合循环其它过程的吸热需求,无用部分向低温热源(环境)释放;M 1千克工质进行c1过程的放热,一般向低温热源(环境)释放。 ②Exothermic process - M 3 kg working medium is exothermic in process 56 and (M 3 -X) kg working medium is exothermic in process 68, and external heat is provided to meet the corresponding heat demand, and the exothermic heat in the low temperature section may be used for 34 Process heat absorption (regeneration) in the high temperature section; X kg working fluid is exothermic in 79 process, M 3 kg working fluid is exothermic in 9c process, which can be released to the cooling medium, or partially or fully used in other combined cycle processes The useless part is released to the low temperature heat source (environment); the exothermic heat of M 1 kg working medium for the c1 process is generally released to the low temperature heat source (environment).
③能量转换过程——M 1千克工质的升压过程12一般由循环泵来完成,循环泵的耗功可由膨胀作功提供或由外部提供;M 2千克工质的升压过程c3,以及M 3千克工质升压过程45,一般由压缩机来完成;X千克工质的降压过程67,(M 3-X)千克工质的降压过程89,以及M 1千克工质降压膨胀过程fg,一般由膨胀机来完成;降压膨胀作功用于升压耗功,或降压膨胀作功大于升压耗功时同时对外输出机械能,或降压膨胀作功小于升压耗功时同时由外部投入机械能,形成第二类单工质联合循环。 ③ Energy conversion process - the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by expansion work or provided externally; M 2 kg working medium The boosting process c3, and The boosting process 45 of M 3 kilograms of working fluid is generally completed by a compressor; the depressurization process of X kilograms of working fluid 67, the depressurization process of (M 3 -X) kilograms of working fluid 89, and the depressurization of M 1 kilogram of working fluid The expansion process fg 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, mechanical energy is simultaneously output to the outside, or the depressurization expansion work is less than the booster power consumption At the same time, mechanical energy is input from the outside to form the second type of single working medium combined cycle.
图5/10所示T-s图中的第二类单工质联合循环示例是这样进行的:The example of the second type of single-agent combined cycle in the T-s diagram shown in Fig. 5/10 proceeds as follows:
(1)从循环过程上看:(1) From the perspective of the cycle process:
工作介质进行——M 1千克工质冷凝液升压过程12,M 1千克工质吸热升温、汽化和过热过程2f,M 1千克工质降压膨胀过程fg,M 1千克工质吸热升温过程g3,M 1千克工质升压升温过程34,M 1千克工质放热降温过程45,M 1千克工质降压膨胀过程56,M 1千克工质放热降温过程6d,M 2千克工质升压升温过程e7,M 2千克工质吸热升温过程78,M 2千克工质升压升温过程89,M 2千克工质放热降温过程9c,M 2千克工质降压膨胀过程cd,M 3千克工质放热降温过程de,M 1千克工质放热冷凝过程e1——共15个过程。 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 2f, M 1 kg working medium depressurization and expansion process fg, M 1 kg working medium endothermic Heating process g3, M 1 kg working medium pressure increasing 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, M 2 kg refrigerant boost heating process e7, M 2 kg refrigerant endothermic heating process 78, M 2 kg refrigerant boost heating process 89, M 2 kg refrigerant heat cooling process 9c, M 2 kg refrigerant expansion buck Process cd, M 3 kg working medium exothermic cooling process de, M 1 kg working medium exothermic condensation process e1 - a total of 15 processes.
(2)从能量转换上看:(2) From the perspective of energy conversion:
①吸热过程——M 1千克工质进行2f、g3两个过程和M 2千克工质进行78过程,其高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由M 1千克工质进6d过程与M 3千克工质进行de过程的联合放热(回热)来提供,或由二者共同来提供;其中——M 1千克工质进行g3过程高温段的吸热,还可由其放热45过程的低温段来提供;M 2千克工质进行78过程高温段的吸热,还可由其放热9c过程的低温段来提供。 ① Endothermic process - M 1 kg working fluid for 2f and g3 processes and M 2 kg working fluid for 78 process, the endothermic heat in the high temperature section is generally provided by an external heat source, and the endothermic heat in the low temperature section is provided by an external heat source or It is provided by the combined heat release (regeneration) of the M 1 kg working medium into the 6d process and the M 3 kg working medium in the de process, or provided by both; wherein—M 1 kg working medium is carried out in the high temperature section of the g3 process The endothermic heat of 45 can also be provided by the low temperature section of the process of exothermic 45; the endotherm of M 2 kg working medium in the high temperature section of the process of 78 can also be provided by the low temperature section of the process of exothermic 9c.
②放热过程——M 1千克工质进行45过程的放热,对外提供满足相应热需求,其中的低温段放热或可用于g3过程高温段吸热(回热);M 2千克工质放热降温过程9c,对外提供满足相应热需求,其中的低温段放热或可用于78过程高温段吸热(回热);M 1千克工质进行6d过程的放热和M 3千克工质进行de过程的放热,可向冷却介质释放,或者部分或大部分用于联合循环其它过程的吸热需求,无用部分向低温热源(环境)释放;M 1千克工质进行e1过程的放热,一般向低温热源释放。 ②Exothermic process - M 1 kg working medium is exothermic in 45 process, and externally provided to meet the corresponding heat demand, in which the low temperature section exothermic or can be used for g3 process high temperature section heat absorption (regeneration); M 2 kg working medium exotherm cooling process 9c, provide external heat to meet the respective needs, the low temperature section 78 for exothermic or endothermic process of the high temperature section (regenerator); M 1 kilogram working fluid 6d exothermic process and the working medium M 3 kilogram The exothermic heat of the de process can be released to the cooling medium, or part or most of it is used for the endothermic demand 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 medium is used for the exothermic heat of the e1 process , generally released to a low temperature heat source.
③能量转换过程——M 1千克工质的升压过程12一般由循环泵来完成,循环泵的耗功可由膨胀作功提供或由外部提供;M 2千克工质的升压过程e7和89,以及M 1千克工质的升压过程34,一般由压缩机来完成;M 1千克工质的降压过程56,M 1千克工质降压膨胀过程fg,以及M 2千克工质的降压过程cd,一般由膨胀机来完成;降压膨胀作功用于升压耗功,或降压膨胀作功大于升压耗功时同时对外输出机械能,或降压膨胀作功小于升压耗功时同时由外部投入机械能,形成第二类单工质联合循环。 ③Energy conversion process - the boosting process 12 of M 1 kg working medium is 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 process e7 and 89 of the M 2 kg working medium and M 1 kilogram of working fluid boosting process 34, is generally accomplished by the compressor; 56 is, M 1 kilogram refrigerant expansion process down fg, and M 2 kilogram drop of the working medium M 1 kilogram of working fluid depressurisation The pressure process cd is generally completed by the expander; the pressure reduction expansion work is used for the boost power consumption, or the pressure reduction expansion work is greater than the pressure boost power consumption and the external mechanical energy is output at the same time, or the pressure reduction expansion work is smaller than the pressure boost power consumption At the same time, mechanical energy is input from the outside to form the second type of single working medium combined cycle.
图6/10所示T-s图中的第二类单工质联合循环示例是这样进行的:The second type of single-agent combined cycle example in the T-s diagram shown in Fig. 6/10 proceeds as follows:
(1)从循环过程上看:(1) From the perspective of the cycle process:
工作介质进行——M 1千克工质冷凝液升压过程12,M 1千克工质与M千克过热蒸汽混合吸热升温过程2b,(M 1+M)千克工质吸热升温、汽化和过热过程bf,(M 1+M)千克 工质降压膨胀fg,(M 1+M)千克工质吸热升温过程g3,M 2千克工质升压升温过程8a,M千克工质与M 1千克工质混合放热冷凝过程ab,(M 2-M)千克工质升压升温过程a3,M 3千克工质吸热升温过程34,M 3千克工质升压升温过程45,M 3千克工质放热降温过程56,M 3千克工质降压膨胀过程67,M 3千克工质放热降温过程78,M 1千克工质放热冷凝过程81——共14个过程。 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 bf, (M 1 +M) kilogram working fluid pressure reduction and expansion fg, (M 1 +M) kilogram working fluid endothermic heating process g3, M 2 kilogram working fluid pressure boosting and heating process 8a, M kilogram working fluid and M 1 Kilogram working medium mixing exothermic condensation process ab, (M 2 -M) kilogram working medium pressure boosting heating process a3, M 3 kilogram working medium endothermic heating process 34, M 3 kilogram working medium pressure boosting heating process 45, M 3 kilogram Working fluid exothermic cooling process 56, M 3 kg working fluid decompression and expansion process 67, M 3 kg working fluid exothermic cooling process 78, M 1 kg working fluid exothermic condensation process 81—a total of 14 processes.
(2)从能量转换上看:(2) From the perspective of energy conversion:
①吸热过程——M 1千克工质进行2b过程的吸热来自M千克过热蒸汽的混合放热,(M 1+M)千克工质进行bf、g3两个过程和M 3千克工质进行34过程,高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由M 3千克工质进行78过程的放热(回热)来提供,或由二者共同来提供;其中,M 3千克工质进行34过程高温段的吸热,还可由其放热56过程的低温段来提供。 ① Endothermic process - the endothermic heat of M 1 kg working medium for 2b process comes from the mixing exotherm of M kg superheated steam, (M 1 +M) kg working medium for bf, g3 two processes and M 3 kg working medium for two processes 34 process, the heat absorption of the high temperature section is generally provided by an external heat source, and the heat absorption of the low temperature section is provided by an external heat source or by the exothermic heat (regeneration) of the 78 process carried out by M 3 kg working medium, or provided by both. ; Among them, M 3 kg working medium carries out the heat absorption of the high temperature section of the 34 process, and can also be provided by the low temperature section of its exothermic 56 process.
②放热过程——M 3千克工质进行56过程的放热,对外提供满足相应热需求,其中的低温段放热或可用于34过程高温段吸热(回热);M 3千克工质进行78过程的放热,可向冷却介质放热,或者部分或全部用于联合循环其它过程的吸热需求,无用部分向低温热源(环境)释放;M 1千克工质进行81过程的放热,一般向低温热源(环境)释放。 ②Exothermic process - M 3 kg working medium carries out the exothermic heat of 56 process, and provides external heat to meet the corresponding heat demand, in which the low temperature section exothermic or can be used for 34 process high temperature section heat absorption (regeneration); M 3 kg working medium 78 for process heat, can be cooled to the heat medium or heat absorbing part or all of the needs for other combined cycle processes, unnecessary part to the low temperature heat release (environment); heat the working medium M 1 kilogram process for 81 , generally released to a low temperature heat source (environment).
③能量转换过程——M 1千克工质的升压过程12一般由循环泵来完成,循环泵的耗功可由膨胀作功提供或由外部提供;M 2千克工质的升压过程8a和(M 2-M)千克工质的升压过程a3,以及M 3千克工质的升压过程45,一般由压缩机来完成;M 3千克工质的降压膨胀过程67,以及M 1千克工质降压膨胀过程fg,一般由膨胀机来完成;降压膨胀作功用于升压耗功,或降压膨胀作功大于升压耗功时同时对外输出机械能,或降压膨胀作功小于升压耗功时同时由外部投入机械能,形成第二类单工质联合循环。 ③ energy conversion process --M 1 kilogram booster working fluid 12 is generally accomplished by the process of the circulation pump, the circulation pump power consumption of expansion work may be provided or supplied externally; M 2 kilogram working fluid boosting process and 8a ( M 2 -M) the boosting process a3 of the kilogram working fluid, and the boosting process 45 of the M 3 kilogram working fluid, are generally completed by the compressor; the depressurizing and expanding process 67 of the M 3 kilogram working fluid, and the M 1 kilogram working fluid The mass depressurization and expansion process fg 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 output at the same time, or the depressurizing expansion work is smaller than the boosting power consumption. When the pressure is consumed, mechanical energy is input from the outside at the same time, forming the second type of single working medium combined cycle.
图7/10所示T-s图中的第二类单工质联合循环示例是这样进行的:The second type of single-agent combined cycle example in the T-s diagram shown in Fig. 7/10 proceeds as follows:
(1)从循环过程上看:(1) From the perspective of the cycle process:
工作介质进行——M 1千克工质冷凝液升压过程12,M 1千克工质与M千克工质的混合吸热升温过程2b,(M 1+M)千克工质吸热升温、汽化和过热过程bf,(M 1+M)千克工质降压膨胀fg,(M 1+M)千克工质吸热升温过程g5,M 2千克工质升压升温过程9a,M千克工质与M 1千克工质的混合放热冷凝过程ab,(M 2-M)千克工质升压升温过程a3,(M 2-M)千克工质吸热升温过程34,(M 2-M)千克工质升压升温过程45,M 3千克工质升压升温过程56,M 3千克工质放热降温过程67,M 3千克工质降压膨胀过程78,M 3千克工质放热降温过程89,M 1千克工质放热冷凝过程91——共15个过程。 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 bf, (M 1 +M) kilogram working fluid pressure reduction and expansion fg, (M 1 +M) kilogram working fluid endothermic heating process g5, M 2 kilogram working fluid pressure boosting and heating process 9a, M kilogram working fluid and M Mixing exothermic condensation process ab of 1 kilogram of working fluid, (M 2 -M) kilogram working fluid pressure boosting and heating process a3, (M 2 -M) kilogram working fluid endothermic heating process 34, (M 2 -M) kilogram working fluid Mass boosting and heating process 45, M 3 kg working fluid boosting and heating process 56, M 3 kg working fluid exothermic cooling process 67, M 3 kg working fluid decompression and expansion process 78, M 3 kg working fluid exothermic cooling process 89 , M 1 kg working medium exothermic condensation process 91 - a total of 15 processes.
(2)从能量转换上看:(2) From the perspective of energy conversion:
①吸热过程——M 1千克工质进行2b过程的吸热来自M千克过热蒸汽的混合放热,(M 1+M)千克工质进行bf、g5两个过程,其高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由M 3千克工质进行89过程的放热(回热)来提供,或由二者共同来提供;(M 2-M)千克工质进行34过程高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由M 3千克工质进行89过程的高温段放热(回热)来提供,或由二者共同来提供;其中,(M 1+M)千克工质进行g5过程和(M 2-M)千克工质进行34过程的高温段吸热,还可由M 3千克工质放热67过程的低温段来提供。 ①Endothermic process——The endothermic heat of M 1 kg working medium for 2b process comes from the mixed exothermic heat of M kg superheated steam, and (M 1 +M) kg working medium undergoes two processes of bf and g5, and the endothermic heat in the high temperature section It is generally provided by an external heat source, and the endothermic heat in the low temperature section is provided by an external heat source or by the exothermic (return heat) of the 89 process performed by M 3 kg working medium, or provided by both; (M 2 -M) kg The endothermic heat in the high temperature section of the 34 process with the working medium is generally provided by an external heat source, and the endothermic heat in the low temperature section is provided by an external heat source or by the exotherm (regeneration) of the high temperature section of the 89 process carried out by M 3 kg working medium, or by two. They are jointly provided; among them, (M 1 +M) kilogram working fluid performs the g5 process and (M 2 -M) kilogram working fluid performs heat absorption in the high temperature section of the 34 process, and can also be exothermic by the M 3 kilogram working fluid in the 67 process. Low temperature section to provide.
②放热过程——M 3千克工质进行67过程的放热,对外提供满足相应热需求,其中的低温段放热或可用于(M 1+M)千克工质进行g5过程和(M 2-M)千克工质进行34过程的高温段吸热;M 3千克工质进行89过程的放热,可向冷却介质放热,或者部分或全部用于联合循环其它过程的吸热需求,无用部分向低温热源(环境)释放;M 1千克工质进行91过程的放热,一般向低温热源(环境)释放。 ②Exothermic process - M 3 kg working medium performs the exothermic process of 67, and provides external heat to meet the corresponding heat demand, and the exothermic heat in the low temperature section can be used for (M 1 +M) kg working medium for g5 process and (M 2 ) -M) The high temperature section of the 34 process is endothermic with a kilogram of working medium; M 3 kilograms of the working medium is used for the exothermic heat of the 89 process, which can release heat to the cooling medium, or be partially or completely used for the endothermic demand of other processes in the combined cycle, useless Part of it is released to the low temperature heat source (environment); M 1 kg working medium is released to the low temperature heat source (environment) for the heat release of the 91 process.
③能量转换过程——M 1千克工质的升压过程12一般由循环泵来完成,循环泵的耗功可由膨胀作功提供或由外部提供;M 2千克工质的升压过程9a,(M 2-M)千克工质的升压过程a3和45,以及M 3千克工质的升压过程56,一般由压缩机来完成;M 3千克工质的降压膨胀过程78,以及M 1千克工质降压膨胀过程fg,一般由膨胀机来完成;降压膨胀作功用于升压耗功,或降压膨胀作功大于升压耗功时同时对外输出机械能,或降压膨胀作功小于升压耗功时同时由外部投入机械能,形成第二类单工质联合循环。 3. Energy conversion process —the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside; The boosting process 9a of M 2 kg working medium, ( M 2 -M) the boosting process a3 and 45 of the kilogram working fluid, and the boosting process 56 of the M 3 kilogram working fluid, which are generally completed by the compressor; the depressurizing and expanding process 78 of the M 3 kilogram working fluid, and the M 1 The depressurization and expansion process fg of kilogram working medium 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 output at the same time, or the depressurizing expansion work When the power consumption 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.
图8/10所示T-s图中的第二类单工质联合循环示例是这样进行的:The example of the second type of single-agent combined cycle in the T-s diagram shown in Fig. 8/10 proceeds as follows:
(1)从循环过程上看:(1) From the perspective of the cycle process:
工作介质进行——M 1千克工质冷凝液升压过程12,M 1千克工质与M千克工质的混合吸热升温过程2b,(M 1+M)千克工质吸热升温、汽化和过热过程bf,(M 1+M)千克工质降压膨胀fg,(M 1+M)千克工质吸热升温过程g4,M 2千克工质升压升温过程9a,M千克工质与M 1千克工质的混合放热冷凝过程ab,(M 2-M)千克工质升压升温过程a3,(M 2-M)千克工质吸热升温过程35,(M 1+M)千克工质升压升温过程45,M 3千克工质升压升温过程56,M 3千克工质放热降温过程67,M 3千克工质降压膨胀过程78,M 3千克工质放热降温过程89,M 1千克工质放热冷凝过程91——共15个过程。 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 bf, (M 1 +M) kilogram working fluid pressure reduction and expansion fg, (M 1 +M) kilogram working fluid endothermic heating process g4, M 2 kilogram working fluid pressure boosting and heating process 9a, M kilogram working fluid and M Mixing exothermic condensation process ab of 1 kilogram of working fluid, (M 2 -M) kilogram of working fluid pressure boosting and heating process a3, (M 2 -M) kilogram of working fluid endothermic heating process 35, (M 1 +M) kilogram of working fluid Mass boosting and heating process 45, M 3 kg working fluid boosting and heating process 56, M 3 kg working fluid exothermic cooling process 67, M 3 kg working fluid decompression and expansion process 78, M 3 kg working fluid exothermic cooling process 89 , M 1 kg working medium exothermic condensation process 91 - a total of 15 processes.
(2)从能量转换上看:(2) From the perspective of energy conversion:
①吸热过程——M 1千克工质进行2b过程的吸热来自M千克过热蒸汽的混合放热,(M 1+M)千克工质进行bf、g4两个过程,其高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由M 3千克工质进行89过程的放热(回热)来提供,或由二者共同来提供;(M 2-M)千克工质进行35过程的吸热一般由外部热源来提供,部分低温段吸热或由M 3千克工质进行89过程的放热(回热)来提供;其中,(M 1+M)千克工质进行g4过程和(M 2-M)千克工质进行35过程的高温段吸热,还可由M 3千克工质放热67过程的低温段来提供。 ① Endothermic process - the endothermic heat of M 1 kg working medium for 2b process comes from the mixed exothermic heat of M kg superheated steam, and (M 1 +M) kg working medium undergoes two processes of bf and g4, and the endothermic heat in the high temperature section It is generally provided by an external heat source, and the endothermic heat in the low temperature section is provided by an external heat source or by the exothermic (return heat) of the 89 process performed by M 3 kg working medium, or provided by both; (M 2 -M) kg The endothermic heat of the working medium for the process of 35 is generally provided by an external heat source, and part of the low temperature section is endothermic or provided by the exotherm (regeneration) of the M 3 kg working medium for the process of 89; wherein, (M 1 +M) kg working medium. The high temperature endotherm of the g4 process and the (M 2 -M) kilogram working medium for the 35 process can also be provided by the low temperature section of the M 3 kg working medium exothermic 67 process.
②放热过程——M 3千克工质进行67过程的放热,对外提供满足相应热需求,其中的低温段放热或可用于(M 1+M)千克工质进行g4过程和(M 2-M)千克工质进行35过程的高温段吸热;M 3千克工质进行89过程的放热,可向冷却介质放热,或者部分或全部用于联合循环其它过程的吸热需求,无用部分向低温热源(环境)释放;M 1千克工质进行91过程的放热,一般向低温热源(环境)释放。 ②Exothermic process - M 3 kg working medium performs the exothermic process of 67, and provides external heat to meet the corresponding heat demand, and the exothermic heat in the low temperature section can be used for (M 1 +M) kg working medium for g4 process and (M 2 ) -M) The high temperature section of the 35 process is endothermic for the kilogram working medium; M 3 kilograms of the working medium is used for the exothermic process of the 89 process, which can release heat to the cooling medium, or partially or fully used for the endothermic requirements of other combined cycle processes, useless Part of it is released to the low temperature heat source (environment); M 1 kg working medium is released to the low temperature heat source (environment) for the heat release of the 91 process.
③能量转换过程——M 1千克工质的升压过程12一般由循环泵来完成,循环泵的耗功可由膨胀作功提供或由外部提供;M 2千克工质的升压过程9a,(M 2-M)千克工质的升压过程a3,(M 1+M)千克工质的升压过程45,以及M 3千克工质的升压过程56,一般由压缩机来完成;M 3千克工质的降压膨胀过程78,以及M 1千克工质降压膨胀过程fg,一般由膨胀机来完成;降压膨胀作功用于升压耗功,或降压膨胀作功大于升压耗功时同时对外输 出机械能,或降压膨胀作功小于升压耗功时同时由外部投入机械能,形成第二类单工质联合循环。 3. Energy conversion process —the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside; The boosting process 9a of M 2 kg working medium, ( M 2 -M) the boosting process a3 of the kilogram working fluid, (M 1 +M) the boosting process 45 of the kilogram working fluid, and M 3 The boosting process 56 of the kilogram working fluid is generally completed by the compressor; M 3 The depressurization and expansion process 78 of kilograms of working fluid, and the depressurization and expansion process fg of M 1 kilogram of working fluid are generally completed by an expander; When working, external mechanical energy is output at the same time, or when the pressure-reducing expansion work is less than the boosting power consumption, mechanical energy is simultaneously input from the outside, forming the second type of single working fluid combined cycle.
图9/10所示T-s图中的第二类单工质联合循环示例是这样进行的:The example of the second type of single-agent combined cycle in the T-s diagram shown in Figure 9/10 proceeds as follows:
(1)从循环过程上看:(1) From the perspective of the cycle process:
工作介质进行——M 1千克工质冷凝液升压过程12,M 1千克工质与M千克工质的混合吸热升温过程2b,(M 1+M)千克工质吸热升温、汽化和过热过程bf,(M 1+M)千克工质降压膨胀fg,(M 1+M)千克工质吸热升温过程g3,M 2千克工质升压升温过程ca,M千克工质与M 1千克工质的混合放热冷凝过程ab,(M 2-M)千克工质升压升温过程a3,M 3千克工质吸热升温过程34,M 3千克工质升压升温过程45,M 3千克工质放热降温过程56,X千克工质降压膨胀过程67,(M 3-X)千克工质放热降温过程68,(M 3-X)千克工质降压膨胀过程89,X千克工质放热降温过程79,M 3千克工质放热降温过程9c,M 1千克工质放热冷凝过程c1——共17个过程。 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 bf, (M 1 +M) kilogram working fluid pressure reduction and expansion fg, (M 1 +M) kilogram working fluid endothermic heating process g3, M 2 kilogram working fluid pressure boosting and heating process ca, M kilogram working fluid and M Mixing exothermic condensation process ab of 1 kilogram of working fluid, (M 2 -M) kilogram of working fluid pressure-increasing and heating process a3, M 3 kilograms of working fluid endothermic heating process 34, M 3 kilograms of working fluid pressure-boosting and heating process 45, M 3 kilograms of working fluid exothermic cooling process 56, X kilograms of working fluid depressurization and expansion process 67, (M 3 -X) kilograms of working fluid exothermic cooling process 68, (M 3 -X) kilograms of working fluid pressure reduction and expansion process 89, X kilograms of working fluid exothermic cooling process 79, M 3 kilograms of working fluid exothermic cooling process 9c, M 1 kilogram of working fluid exothermic condensation process c1—a total of 17 processes.
(2)从能量转换上看:(2) From the perspective of energy conversion:
①吸热过程——M 1千克工质进行2b过程的吸热来自M千克过热蒸汽的混合放热,(M 1+M)千克工质进行bf、g3两个过程和M 3千克工质进行34过程,高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由X千克工质进行79过程的放热、M 3千克工质进行9c过程的放热(回热)来提供,或由三者共同来提供;其中,M 3千克工质进行34过程高温段的吸热,还可由(M 3-X)千克工质放热68过程来提供。 ① Endothermic process - the endothermic heat of M 1 kg working medium for 2b process comes from the mixing exotherm of M kg superheated steam, (M 1 +M) kg working medium for bf, g3 two processes and M 3 kg working medium for two processes 34 process, the endothermic high temperature sections typically provided by an external heat source, the exothermic endothermic low temperature section 79 of a process working fluid X kg or by an external heat source, M 3 kg refrigerant 9c exothermic process (heat recovery ) to provide, or provided by the three together; wherein, M 3 kilograms of working medium endothermic in the high temperature section of the 34 process can also be provided by (M 3 -X) kilograms of working medium exothermic 68 process.
②放热过程——M 3千克工质进行56过程的放热和(M 3-X)千克工质进行68过程的放热,对外提供满足相应热需求,其中的低温段放热或可用于34过程高温段吸热(回热);X千克工质进行79过程的放热、M 3千克工质进行9c过程的放热,可向冷却介质释放,或者部分或全部用于联合循环其它过程的吸热需求,无用部分向低温热源(环境)释放;M 1千克工质进行c1过程的放热,一般向低温热源(环境)释放。 ②Exothermic process - M 3 kg working medium is exothermic in process 56 and (M 3 -X) kg working medium is exothermic in process 68, and external heat is provided to meet the corresponding heat demand, and the exothermic heat in the low temperature section may be used for 34 Process heat absorption (regeneration) in the high temperature section; X kg working fluid is exothermic in 79 process, M 3 kg working fluid is exothermic in 9c process, which can be released to the cooling medium, or partially or fully used in other combined cycle processes The useless part is released to the low temperature heat source (environment); the exothermic heat of M 1 kg working medium for the c1 process is generally released to the low temperature heat source (environment).
③能量转换过程——M 1千克工质的升压过程12一般由循环泵来完成,循环泵的耗功可由膨胀作功提供或由外部提供;M 2千克工质的升压过程ca和(M 2-M)千克工质的升压过程a3,以及M 3千克工质升压过程45,一般由压缩机来完成;X千克工质的降压过程67,(M 3-X)千克工质的降压过程89,以及M 1千克工质降压膨胀过程fg,一般由膨胀机来完成;降压膨胀作功用于升压耗功,或降压膨胀作功大于升压耗功时同时对外输出机械能,或降压膨胀作功小于升压耗功时同时由外部投入机械能,形成第二类单工质联合循环。 ③ energy conversion process --M 1 kilogram booster working fluid 12 is generally accomplished by the process of the circulation pump, the circulation pump power consumption of expansion work may be provided or supplied externally; M 2 kilogram working fluid boosting process and ca ( M 2 -M) the boosting process a3 of the kilogram working fluid, and the boosting process 45 of the M 3 kilogram working fluid are generally completed by the compressor; the decompression process 67 of the X kilogram working fluid, (M 3 -X) the The qualitative decompression process 89 , and the decompression and expansion process fg of M 1 kg working medium are generally completed by the 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.
图10/10所示T-s图中的第二类单工质联合循环示例是这样进行的:The example of the second type of single-agent combined cycle in the T-s diagram shown in Figure 10/10 proceeds like this:
(1)从循环过程上看:(1) From the perspective of the cycle process:
工作介质进行——M 1千克工质冷凝液升压过程12,M 1千克工质与M千克工质的混合吸热升温过程2b,(M 1+M)千克工质吸热升温、汽化和过热过程bf,(M 1+M)千克工质降压膨胀fg,(M 1+M)千克工质吸热升温过程g3,(M 1+M)千克工质升压升温过程34,(M 1+M)千克工质放热降温过程45,(M 1+M)千克工质降压膨胀过程56,(M 1+M)千克工质放热降温过程6d,M 2千克工质升压升温过程ea,M千克工质与M 1千克工质的混合放热冷凝过程ab,(M 2-M)千克工质升压升温过程a7,(M 2-M)千克工质吸热升温过程78,(M 2-M)千克工质升压升温过程89,(M 2-M)千克工质放热降温过程9c,(M 2-M)千克工质降压膨胀过程cd,M 3千克工质放热降温过程de,M 1千克工质放热冷 凝过程e1——共18个过程。 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 bf, (M 1 +M) kilogram working fluid pressure reduction and expansion fg, (M 1 +M) kilogram working fluid endothermic heating process g3, (M 1 +M) kilogram working fluid pressure boosting and heating process 34, (M 1 +M) kilogram working fluid exothermic cooling process 45, (M 1 +M) kilogram working fluid depressurization and expansion process 56, (M 1 +M) kilogram working fluid exothermic cooling process 6d, M 2 kilogram working fluid boosting pressure Heating process ea, mixing exothermic condensation process ab of M kg working fluid and M 1 kg working fluid, (M 2 -M) kg working fluid pressure increasing process a7, (M 2 -M) kg working fluid endothermic heating process 78, (M 2 -M) kilogram working fluid pressure rise and temperature rise process 89, (M 2 -M) kilogram working fluid exothermic cooling process 9c, (M 2 -M) kilogram working fluid pressure reduction and expansion process cd, M 3 kilograms Working medium exothermic cooling process de, M 1 kg working medium exothermic condensation process e1 - a total of 18 processes.
(2)从能量转换上看:(2) From the perspective of energy conversion:
①吸热过程——M 1千克工质进行2b过程的吸热来自M千克过热蒸汽的混合放热,(M 1+M)千克工质进行bf、g3两个过程和(M 2-M)千克工质进行78过程,其高温段的吸热一般由外部热源来提供,低温段的吸热由外部热源或由(M 1+M)千克工质进6d过程与M 3千克工质进行de过程的联合放热(回热)来提供,或由三者共同来提供。其中——(M 1+M)千克工质进行g3过程高温段的吸热,还可由其放热45过程的低温段来提供;(M 2-M)千克工质进行78过程高温段的吸热,还可由其放热9c过程的低温段来提供。 ① Endothermic process - the endothermic heat of M 1 kg working medium for 2b process comes from the mixing exotherm of M kg superheated steam, (M 1 +M) kg working medium for bf, g3 two processes and (M 2 -M) The 78 process is carried out by kilogram working medium, and the endothermic heat in the high temperature section is generally provided by an external heat source, and the endothermic heat in the low temperature section is carried out by an external heat source or by (M 1 +M) kilogram working medium into the 6d process and M 3 kilogram working medium. Provided by the combined exotherm (regeneration) of the process, or a combination of all three. Among them—(M 1 +M) kilogram working medium carries out the absorption of heat in the high temperature section of the g3 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 absorption of the high temperature section of the 78 process Heat can also be provided by the low temperature section of its exothermic 9c process.
②放热过程——(M 1+M)千克工质进行45过程的放热,对外提供满足相应热需求,其中的低温段放热或可用于g3过程高温段吸热(回热);(M 2-M)千克工质放热降温过程9c,对外提供满足相应热需求,其中的低温段放热或可用于78过程高温段吸热(回热);(M 1+M)千克进行工质6d过程的放热和M 3千克工质进行de过程的放热,可向冷却介质释放,或者部分或大部分用于联合循环其它过程的吸热需求,无用部分向低温热源(环境)释放;M 1千克工质进行e1过程的放热,一般向低温热源释放。 ②Exothermic process - (M 1 +M) kilogram working medium performs the exothermic process of 45, and provides external heat to meet the corresponding heat demand, in which the low temperature section exotherms or can be used for the high temperature section of the g3 process to absorb heat (regeneration); ( M 2 -M) kg working medium exothermic cooling process 9c, externally provided to meet the corresponding heat demand, wherein the low temperature section exothermic or can be used for 78 process high temperature section heat absorption (regeneration); (M 1 +M) kg for working The exothermic heat of the mass 6d process and the exothermic heat of the M 3 kg working medium in the de process can be released to the cooling medium, or part or most of it is used for the endothermic demand of other processes in the combined cycle, and the useless part is released to the low temperature heat source (environment) ; M 1 kg working medium is exothermic in e1 process, generally released to low temperature heat source.
③能量转换过程——M 1千克工质的升压过程12一般由循环泵来完成,循环泵的耗功可由膨胀作功提供或由外部提供;M 2千克工质的升压过程ea,(M 2-M)千克工质的升压过程a7,(M 1+M)千克工质的升压过程34,(M 2-M)千克工质的升压过程89,一般由压缩机来完成;(M 1+M)千克工质的降压膨胀过程56,(M 2-M)千克工质的降压膨胀过程cd,以及M 1千克工质降压膨胀过程fg,一般由膨胀机来完成;降压膨胀作功用于升压耗功,或降压膨胀作功大于升压耗功时同时对外输出机械能,或降压膨胀作功小于升压耗功时同时由外部投入机械能,形成第二类单工质联合循环。 3. Energy conversion process - the boosting process 12 of M 1 kg working medium is generally completed by a circulating pump, and the power consumption of the circulating pump can be provided by the expansion work or provided by the outside; The boosting process ea of M 2 kg working medium, ( M 2 -M) the boosting process a7 of the kilogram working fluid, (M 1 +M) the boosting process 34 of the kilogram working fluid, and (M 2 -M) the boosting process 89 of the kilogram working fluid, generally completed by the compressor ; (M 1 +M) the depressurization and expansion process 56 of the kilogram working medium, (M 2 -M) the depressurization and expansion process cd of the kilogram working medium, and the depressurization and expansion process fg of the M 1 kilogram working medium, generally from the expander. Completed; the buck expansion work is used for the boost power consumption, or when the buck expansion work is greater than the boost power consumption, the mechanical energy is output externally, or when the buck expansion work is smaller than the boost power consumption, the mechanical energy is input from the outside at the same time, forming the first step. Class II single working fluid combined cycle.
本发明技术可以实现的效果——本发明所提出的第二类单工质联合循环,具有如下效果和优势:The effect that the technology of the present invention can achieve—the second type of single working medium combined cycle proposed by the present invention has the following effects and advantages:
(1)提出了温差利用的新思路和新技术。(1) New ideas and new technologies for temperature difference utilization are proposed.
(2)热能(温差)驱动,实现热能温度提升,或可选择同时对外提供动力。(2) Thermal energy (temperature difference) drive, to achieve thermal energy temperature increase, or to provide external power at the same time.
(3)方法简单,流程合理,适用性好,是实现温差有效利用的共性技术。(3) The method is simple, the process is reasonable, and the applicability is good. It is a common technology to realize the effective utilization of temperature difference.
(4)必要时,借助部分外部动力实现热能温度提升,方式灵活,适应性好。(4) When necessary, the temperature of thermal energy can be increased with the help of some external power, which is flexible and adaptable.
(5)相变过程或相变过程为主实现低温放热,有利于减小低温热负荷释放环节的传热温差,提高循环性能指数。(5) 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.
(6)变温过程或变温过程为主实现中温吸热,有利于减小中温热负荷获取环节的传热温差,提高循环性能指数。(6) The 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.
(7)变温放热,有利于减小供热环节传热温差,实现循环性能指数合理化。(7) The 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.
(8)单一工质,有利于生产和储存;降低运行成本,提高循环调节的灵活性(8) A single working fluid is beneficial to production and storage; reduce operating costs and improve the flexibility of cycle adjustment
(9)过程共用,减少过程数量,为减少设备投资提供理论基础。(9) Process sharing, reduce the number of processes, and provide a theoretical basis for reducing equipment investment.
(10)工质参数范围宽,实现高效高温供热;能够很好地适应供能需求,工质与工作参数之间匹配灵活。(10) A wide range of working fluid parameters enables high-efficiency high-temperature heating; it can well adapt to energy supply requirements, and the matching between working fluid and working parameters is flexible.
(11)设置高压膨胀过程,增加对高温热源的适应性和工作介质选择的灵活性。(11) Set the high-pressure expansion process to increase the adaptability to high-temperature heat sources and the flexibility of working medium selection.
(12)扩展了实现温差利用的热力循环范围,有利于更好地实现中温热源和变中温热源的高效热利用。(12) The 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.

Claims (10)

  1. 第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十一个过程——M 1千克工质升压过程12,M 1千克工质吸热汽化过程2f,M 1千克工质降压过程fg,M 1千克工质吸热过程g3,M 2千克工质升压过程83,M 3千克工质吸热过程34,M 3千克工质升压过程45,M 3千克工质放热过程56,M 3千克工质降压过程67,M 3千克工质放热过程78,M 1千克工质放热冷凝过程81——组成的闭合过程;其中,M 3为M 1与M 2之和。 The second type of single working medium combined cycle refers to the eleven processes that are carried out separately or jointly by working medium composed of M 1 kg and M 2 kg - M 1 kg working medium boosting process 12, M 1 kg working medium Endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g3, M 2 kg working fluid boosting process 83, M 3 kg working fluid endothermic process 34, M 3 kg working fluid Mass boosting process 45, M 3 kg working medium exothermic process 56, M 3 kg working medium depressurization process 67, M 3 kg working medium exothermic process 78, M 1 kg working medium exothermic condensation process 81 - composed of A closed process; where M 3 is the sum of M 1 and M 2 .
  2. 第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十二个过程——M 1千克工质升压过程12,M 2千克工质升压过程93,M 2千克工质吸热过程34,M 1千克工质吸热汽化过程2f,M 1千克工质降压过程fg,M 1千克工质吸热过程g5,M 2千克工质升压过程45,M 3千克工质升压过程56,M 3千克工质放热过程67,M 3千克工质降压过程78,M 3千克工质放热过程89,M 1千克工质放热冷凝过程91——组成的闭合过程;其中,M 3为M 1与M 2之和。 The second type of single working medium combined cycle refers to the twelve processes that are carried out separately or jointly by the working medium consisting of M 1 kg and M 2 kg - M 1 kg working medium boosting process 12, M 2 kg working medium Boosting process 93, M 2 kg working fluid endothermic process 34, M 1 kg working fluid endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g5, M 2 kg working fluid endothermic process g5, M 2 kg working fluid endothermic process Mass boosting process 45, M 3 kg working fluid boosting process 56, M 3 kg working fluid exothermic process 67, M 3 kg working fluid depressurizing process 78, M 3 kg working fluid exothermic process 89, M 1 kg working fluid exothermic process 89 Mass Exothermic Condensation Process 91 - a closed process of composition; where M 3 is the sum of M 1 and M 2 .
  3. 第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十二个过程——M 1千克工质升压过程12,M 1千克工质吸热汽化过程2f,M 1千克工质降压过程fg,M 1千克工质吸热过程g4,M 2千克工质升压过程93,M 2千克工质吸热过程35,M 1千克工质升压过程45,M 3千克工质升压过程56,M 3千克工质放热过程67,M 3千克工质降压过程78,M 3千克工质放热过程89,M 1千克工质放热冷凝过程91——组成的闭合过程;其中,M 3为M 1与M 2之和。 The second type of single working medium combined cycle refers to the twelve processes carried out separately or jointly by working medium composed of M 1 kg and M 2 kg-M 1 kg working medium boosting process 12, M 1 kg working medium Endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g4, M 2 kg working fluid boosting process 93, M 2 kg working fluid endothermic process 35, M 1 kg working fluid Endothermic process 35, M 1 kg working fluid endothermic process Mass boosting process 45, M 3 kg working fluid boosting process 56, M 3 kg working fluid exothermic process 67, M 3 kg working fluid depressurizing process 78, M 3 kg working fluid exothermic process 89, M 1 kg working fluid exothermic process 89 Mass Exothermic Condensation Process 91 - a closed process of composition; where M 3 is the sum of M 1 and M 2 .
  4. 第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十四个过程——M 1千克工质升压过程12,M 1千克工质吸热汽化过程2f,M 1千克工质降压过程fg,M 1千克工质吸热过程g3,M 2千克工质升压过程c3,M 3千克工质吸热过程34,M 3千克工质升压过程45,M 3千克工质放热过程56,X千克工质降压过程67,(M 3-X)千克工质放热过程68,(M 3-X)千克工质降压过程89,X千克工质放热过程79,M 3千克工质放热过程9c,M 1千克工质放热冷凝过程c1——组成的闭合过程;其中,M 3为M 1与M 2之和。 The second type of single working medium combined cycle refers to the fourteen processes carried out separately or jointly by working medium composed of M 1 kg and M 2 kg - M 1 kg working medium boosting process 12, M 1 kg working medium Endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g3, M 2 kg working fluid boosting process c3, M 3 kg working fluid endothermic process 34, M 3 kg working fluid Mass boosting 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) kg working fluid depressurization Process 89, X kilogram working fluid exothermic process 79, M 3 kilogram working fluid exothermic process 9c, M 1 kilogram working fluid exothermic condensation process c1—a closed process of composition; wherein, M 3 is between M 1 and M 2 and.
  5. 第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十五个过程——M 1千克工质升压过程12,M 1千克工质吸热汽化过程2f,M 1千克工质降压过程fg,M 1千克工质吸热过程g3,M 1千克工质升压过程34,M 1千克工质放热过程45,M 1千克工质降压过56,M 1千克工质放热过程6d,M 2千克工质升压过程e7,M 2千克工质吸热过程78,M 2千克工质升压过程89,M 2千克工质放热过程9c,M 2千克工质降压过程cd,M 3千克工质放热过程de,M 1千克工质放热冷凝过程e1——组成的闭合过程;其中,M 3为M 1与M 2之和。 The second type of single working fluid combined cycle refers to the fifteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg working fluid Endothermic vaporization process 2f, M 1 kg working fluid depressurization process fg, M 1 kg working fluid endothermic process g3, M 1 kg working fluid boosting process 34, M 1 kg working fluid exothermic process 45, M 1 kg working fluid exothermic process 45, M 1 kg working fluid process Mass depressurization over 56, M 1 kg working fluid exothermic process 6d, M 2 kg working fluid boosting process e7, M 2 kg working fluid endothermic process 78, M 2 kg working fluid boosting process 89, M 2 kg working fluid boosting process 89, M 2 kg working fluid boosting process e7 Mass exothermic process 9c, M 2 kg working medium depressurization process cd, M 3 kg working medium exothermic process de, M 1 kg working medium exothermic condensation process e1 - a closed process composed of; wherein, M 3 is M 1 Sum with M 2 .
  6. 第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十四个过程——M 1千克工质升压过程12,M 1千克工质吸热过程2b,(M 1+M)千克工质吸热汽化过程bf,(M 1+M)千克工质降压过程fg,(M 1+M)千克工质吸热过程g3,M 2千克工质升压过程8a,M千克工质放热冷凝过程ab,(M 2-M)千克工质升压过程a3,M 3千克工质吸热过程34,M 3千克工质升压过程45,M 3千克工质放热过程56,M 3千克工质 降压过程67,M 3千克工质放热过程78,M 1千克工质放热冷凝过程81——组成的闭合过程;其中,M 3为M 1与M 2之和。 The second type of single working medium combined cycle refers to the fourteen processes carried out separately or jointly by working medium composed of M 1 kg and M 2 kg - M 1 kg working medium boosting process 12, M 1 kg working medium Endothermic process 2b, (M 1 +M) kg working fluid endothermic vaporization process bf, (M 1 +M) kg working fluid depressurization process fg, (M 1 +M) kg working fluid endothermic process g3, 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 kilograms of working fluid exothermic process 56, M 3 kilograms of working fluid depressurization process 67, M 3 kilograms of working fluid exothermic process 78, M 1 kilogram of working fluid exothermic condensation process 81 - a closed process of composition; wherein , M 3 M 1 and M 2 to the sum.
  7. 第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十五个过程——M 1千克工质升压过程12,M 1千克工质吸热过程2b,M 2千克工质升压过程9a,M千克工质放热冷凝过程ab,(M 2-M)千克工质升压过程a3,(M 2-M)千克工质吸热过程34,(M 1+M)千克工质吸热汽化过程bf,(M 1+M)千克工质降压过程fg,(M 1+M)千克工质吸热过程g5,(M 2-M)千克工质升压过程45,M 3千克工质升压过程56,M 3千克工质放热过程67,M 3千克工质降压过程78,M 3千克工质放热过程89,M 1千克工质放热冷凝过程91——组成的闭合过程;其中,M 3为M 1与M 2之和。 The second type of single working fluid combined cycle refers to the fifteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg working fluid endothermic process 2b, M 2 kg refrigerant bootstrapping 9a, M kg refrigerant exothermic condensation ab, (M 2 -M) kg refrigerant bootstrapping a3, (M 2 -M) kg refrigerant absorbs heat Process 34, (M 1 +M) kilogram working fluid endothermic vaporization process bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g5, (M 2 − M) Kilogram working medium boosting process 45, M 3 Kilogram working medium boosting process 56, M 3 Kilogram working medium exothermic process 67, M 3 Kilogram working medium depressurization process 78, M 3 Kilogram working medium exothermic process 89, M 1 kilogram of working medium exothermic condensation process 91 - a closed process of composition; wherein, M 3 is the sum of M 1 and M 2.
  8. 第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十五个过程——M 1千克工质升压过程12,M 1千克工质吸热过程2b,M 2千克工质升压过程9a,M千克工质放热冷凝过程ab,(M 2-M)千克工质升压过程a3,(M 1+M)千克工质吸热汽化过程bf,(M 1+M)千克工质降压过程fg,(M 1+M)千克工质吸热过程g4,(M 2-M)千克工质吸热过程35,(M 1+M)千克工质升压过程45,M 3千克工质升压过程56,M 3千克工质放热过程67,M 3千克工质降压过程78,M 3千克工质放热过程89,M 1千克工质放热冷凝过程91——组成的闭合过程;其中,M 3为M 1与M 2之和。 The second type of single working fluid combined cycle refers to the fifteen processes that are carried out separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg working fluid endothermic process 2b, M 2 kg refrigerant bootstrapping 9a, M kg refrigerant exothermic condensation ab, (M 2 -M) kg refrigerant bootstrapping a3, (M 1 + M) kg refrigerant absorbs heat Vaporization process bf, (M 1 +M) kilogram working fluid depressurization process fg, (M 1 +M) kilogram working fluid endothermic process g4, (M 2 -M) kilogram working fluid endothermic process 35, (M 1 + M) Kilogram working medium boosting process 45, M 3 Kilogram working medium boosting process 56, M 3 Kilogram working medium exothermic process 67, M 3 Kilogram working medium depressurization process 78, M 3 Kilogram working medium exothermic process 89, M 1 kilogram of working medium exothermic condensation process 91 - a closed process of composition; wherein, M 3 is the sum of M 1 and M 2.
  9. 第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十七个过程——M 1千克工质升压过程12,M 1千克工质吸热过程2b,(M 1+M)千克工质吸热汽化过程bf,(M 1+M)千克工质降压过程fg,(M 1+M)千克工质吸热过程g3,M 2千克工质升压过程ca,M千克工质放热冷凝过程ab,(M 2-M)千克工质升压过程a3,M 3千克工质吸热过程34,M 3千克工质升压过程45,M 3千克工质放热过程56,X千克工质降压过程67,(M 3-X)千克工质放热过程68,(M 3-X)千克工质降压过程89,X千克工质放热过程79,M 3千克工质放热过程9c,M 1千克工质放热冷凝过程c1——组成的闭合过程;其中,M 3为M 1与M 2之和。 The second type of single working medium combined cycle refers to the working medium composed of M 1 kg and M 2 kg, and seventeen processes are carried out separately or together - M 1 kg working medium boosting process 12, M 1 kg working medium Endothermic process 2b, (M 1 +M) kg working fluid endothermic vaporization process bf, (M 1 +M) kg working fluid depressurization process fg, (M 1 +M) kg working fluid endothermic process g3, 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 exothermic process 9c, M 1 kilogram working fluid exothermic condensation process c1—a closed process composed of; wherein, M 3 is the sum of M 1 and M 2 .
  10. 第二类单工质联合循环,是指由M 1千克和M 2千克组成的工质,分别或共同进行的十八个过程——M 1千克工质升压过程12,M 1千克工质吸热过程2b,(M 1+M)千克工质吸热汽化过程bf,(M 1+M)千克工质降压过程fg,(M 1+M)千克工质吸热过程g3,(M 1+M)千克工质升压过程34,(M 1+M)千克工质放热过程45,(M 1+M)千克工质降压过56,(M 1+M)千克工质放热过程6d,M 2千克工质升压过程ea,M千克工质放热冷凝过程ab,(M 2-M)千克工质升压过程a7,(M 2-M)千克工质吸热过程78,(M 2-M)千克工质升压过程89,(M 2-M)千克工质放热过程9c,(M 2-M)千克工质降压过程cd,M 3千克工质放热过程de,M 1千克工质放热冷凝过程e1——组成的闭合过程;其中,M 3为M 1与M 2之和。 The second type of single working fluid combined cycle refers to the eighteen processes that are performed separately or jointly by working fluids composed of M 1 kg and M 2 kg - M 1 kg working fluid boosting process 12, M 1 kg working fluid Endothermic process 2b, (M 1 +M) kg working fluid endothermic vaporization process bf, (M 1 +M) kg working fluid depressurization process fg, (M 1 +M) kg working fluid endothermic process g3, (M 1 +M) kilogram working fluid pressure boosting process 34, (M 1 +M) kilogram working fluid exothermic process 45, (M 1 +M) kilogram working fluid depressurization 56, (M 1 +M) kilogram working fluid release Thermal process 6d, 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 process 9c, (M 2 -M) kilogram working fluid depressurizing process cd, M 3 kilogram working fluid release Thermal process de, M 1 kg working medium exothermic condensation process e1 - a closed process of composition; wherein, M 3 is the sum of M 1 and M 2.
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