CN111608755A - Single working medium steam combined cycle - Google Patents

Single working medium steam combined cycle Download PDF

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Publication number
CN111608755A
CN111608755A CN202010329980.5A CN202010329980A CN111608755A CN 111608755 A CN111608755 A CN 111608755A CN 202010329980 A CN202010329980 A CN 202010329980A CN 111608755 A CN111608755 A CN 111608755A
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working medium
kilogram
kilogram working
heat
heat absorption
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李鸿瑞
李华玉
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00—General layout or general methods of operation of complete plants

Abstract

The invention provides a single working medium steam combined cycle, and belongs to the technical field of energy and power. Is defined by M1Kilogram, M2Working medium consisting of kilogram and H kilogram, eleven processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23 kg of working medium, pressure boosting process 1e of H kg of working medium, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e6, M2Kilogram working medium boosting process 63, (M)1+M2) Kilogram working medium endothermic process 34, (M)1+M2) Step-down 45 for kilogram working medium, (M)1+M2) Kilogram working medium heat release process 5f, (M)1+M2) Mixing kilogram working medium with H kilogram working medium to release heat process f6, (M)1+ H) kilogram working medium depressurization 67 (M)1+ H) kilogram working medium exothermal condensation process 71-the closed process of composition.

Description

Single working medium steam combined cycle
The technical field is as follows:
the invention belongs to the technical field of energy and power.
Background art:
cold demand, heat demand and power demand, which are common in human life and production; among them, the conversion of thermal energy into mechanical energy is an important way to obtain and provide power. Generally, the temperature of the heat source decreases with the release of heat, and the heat source is variable in temperature; when fossil fuel is used as source energy, the heat source has the dual characteristics of high temperature and variable temperature, so that the utilization rate of energy is not ideal when refrigeration, heat supply or conversion into power is realized by adopting a single thermodynamic cycle theory.
Taking an external combustion type steam power device as an example, a heat source of the external combustion type steam power device belongs to a high-temperature and variable-temperature heat source; when Rankine cycle is taken as a theoretical basis and steam is taken as a cycle working medium to realize thermal power conversion, the cycle working medium and a heat source have large temperature difference loss and large irreversible loss no matter what parameters are adopted for operation due to the limitation of temperature resistance and pressure resistance and safety of materials, so that the thermal efficiency is low.
People need to simply, actively and efficiently utilize fuel generation or other high-temperature heat energy to realize refrigeration, heat supply or power conversion, which needs support of a thermal science basic theory; in a thermal science basic theory system, thermodynamic cycle is the core of the theoretical basis of a heat energy utilization device and an energy utilization system; the creation and development application of thermodynamic cycle will play a significant role in the leap of energy utilization, and will actively push social progress and productivity development.
The invention provides a single-working-medium steam combined cycle, which aims to provide theoretical support for simplification and high efficiency of a thermodynamic system aiming at the power application of a high-temperature heat source or a variable-temperature heat source from the principle of simply, actively and efficiently realizing temperature difference utilization.
The invention content is as follows:
the invention mainly aims to provide a single-working-medium steam combined cycle, and the specific invention contents are explained in terms as follows:
1. single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kilogram and H kilogram, eleven processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23 kg of working medium, pressure boosting process 1e of H kg of working medium, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e6, M2Boosting by kilogram working mediumProcess 63, (M)1+M2) Kilogram working medium endothermic process 34, (M)1+M2) Step-down 45 for kilogram working medium, (M)1+M2) Kilogram working medium heat release process 5f, (M)1+M2) Mixing kilogram working medium with H kilogram working medium to release heat process f6, (M)1+ H) kilogram working medium depressurization 67 (M)1+ H) kilogram working medium exothermal condensation process 71-the closed process of composition.
2. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kg and H kg, twelve processes-M-carried out separately or together1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process with working medium of 35 kg, boosting process with working medium of H kg 1e, working medium of H kg and (M)1+M2) Kilogram working medium mixing heat absorption process e7, M2Step-up process 74, M with kilogram working medium2Kilogram working medium endothermic process 45, (M)1+M2) Kilogram working medium depressurization 56 (M)1+M2) Kilogram working medium heat release process 6f, (M)1+M2) Mixing kilogram working medium with H kilogram working medium to release heat process f7, (M)1+ H) kilogram working medium depressurization 78 (M)1+ H) kilogram working medium exothermic condensation process 81-the closed process of composition.
3. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kg and H kg, twelve processes-M-carried out separately or together1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 25 kg of working medium, pressure boosting process 1e of H kg of working medium, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e7, M2Kilogram working medium boosting process 73, M234, M kilogram working medium heat absorption process2Step-down 45 for kilogram working medium, (M)1+M2) Kilogram working medium depressurization 56 (M)1+M2) Kilogram working medium heat release process 6f, (M)1+M2) Mixing heat release process f7 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization 78 (M)1+ H) kilogram working medium exothermic condensation process 81-compositionThe closing process of (1).
4. Single working medium steam combined cycle, is formed from M1Kilogram, M2Thirteen processes-M-carried out separately or together with one kilogram of working medium and one kilogram of working medium1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process with working medium of kilogram 37, boosting process with working medium of H kilogram 1e, working medium of H kilogram and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M2Boosting process 84, M with kilogram working medium245, M kilogram working medium heat absorption process2Decompression process 56, M of kilogram working medium2Kilogram working medium exothermic process 67, (M)1+M2) Kilogram working medium heat release process 7f, (M)1+M2) Mixing heat release process f8 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
5. Single working medium steam combined cycle, is formed from M1Kilogram, M2Thirteen processes-M-carried out separately or together with one kilogram of working medium and one kilogram of working medium1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process 34, M of kilogram working medium1Heat release process 47 kg working medium, pressure increase process 1e H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M2Boosting process of 85, M for kilogram working medium256, M kilogram working medium heat absorption process2Kilogram working medium depressurization 67 (M)1+M2) Kilogram working medium heat release process 7f, (M)1+M2) Mixing heat release process f8 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
6. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kilogram and H kilogram, fourteen processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1The kilogram working medium absorbs heat and vaporizes 23, H kilogram working medium boosts pressureScheme 1e, H kg of working substance and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M2Kilogram working medium pressure rising process 83, (M)1+M2) 34 kilogram working medium heat absorption process, 47X kilogram working medium pressure reduction process, (M)1+M2-X) kilogram working substance endothermic Process 45, (M)1+M2-X) decompression Process 56 with kg of working substance, (M)1+M2-X) kilogram working substance exothermic process 6f, (M)1+M2-X) Heat-releasing Process f7 of mixing of kg working substance with H kg working substance, (M)1+M2) Mixing and heat releasing process 78 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
7. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kilogram and H kilogram, fourteen processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kg heat-absorbing vaporization process b3, H kg pressure process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e6, M2Kilogram working medium pressure increasing process 6a, M kilogram working medium heat releasing condensation process ab, (M)2M) kilogram working medium pressure increasing process a3, (M)1+M2) Kilogram working medium endothermic process 34, (M)1+M2) Step-down 45 for kilogram working medium, (M)1+M2) Kilogram working medium heat release process 5f, (M)1+M2) Mixing heat release process f6 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization 67 (M)1+ H) kilogram working medium exothermal condensation process 71-the closed process of composition.
8. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kg and H kg, fifteen processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kilogram working medium endothermic vaporization process b3, (M)1+ M) kg of working medium for depressurization 35, H kg of working medium for pressure increase 1e, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e7, M2Kilogram working medium pressure-increasing process 7a, M kilogram working medium heat-releasing condensation process ab, (M)2M) kilogram working medium pressure increasing process a4, (M)2-M) kilogram working medium endothermic Process 45, (M)1+M2) Kilogram working medium depressurization 56 (M)1+M2) Kilogram working medium heat release process 6f, (M)1+M2) Mixing heat release process f7 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization 78 (M)1+ H) kilogram working medium exothermic condensation process 81-the closed process of composition.
9. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kg and H kg, fifteen processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kg heat-absorbing vaporization process b5, H kg pressure process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e7, M2Kilogram working medium pressure-increasing process 7a, M kilogram working medium heat-releasing condensation process ab, (M)2M) kilogram working medium pressure increasing process a3, (M)2-M) kilogram working medium endothermic process 34, (M)2-M) decompression Process 45 with kg of working substance (M)1+M2) Kilogram working medium depressurization 56 (M)1+M2) Kilogram working medium heat release process 6f, (M)1+M2) Mixing heat release process f7 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization 78 (M)1+ H) kilogram working medium exothermic condensation process 81-the closed process of composition.
10. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium composed of kg and H kg, sixteen processes-M carried out separately or together1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kilogram working medium endothermic vaporization process b3, (M)1+ M) kg of working medium for depressurization 37, H kg of working medium for pressure increase 1e, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M2Kilogram working medium boosting process 8a, M kilogram working medium heat release condensation process ab, (M)2M) kilogram working medium pressure increasing process a4, (M)2-M) kilogram working medium endothermic Process 45, (M)2-M) decompression Process 56 with kg working substance (M)2M) kilogram working substance exothermic Process 67, (M)1+M2) Kilogram working medium heat release process 7f, (M)1+M2) Mixing heat release process f8 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
11. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium composed of kg and H kg, sixteen processes-M carried out separately or together1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kilogram working medium endothermic vaporization process b3, (M)1+ M) kilogram working medium depressurization 34, (M)1+ M) kg of working medium for heat release 47, H kg of working medium for pressure rise 1e, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M28a in kilogram working medium boosting process, ab in M kilogram working medium heat releasing condensation process, (M)2M) kilogram working medium pressure increasing process a5, (M)2M) kilogram working medium endothermic Process 56, (M)2-M) decompression Process 67 with kg working Medium, (M)1+M2) Kilogram working medium heat release process 7f, (M)1+M2) Mixing heat release process f8 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
12. Single working medium steam combined cycle, is formed from M1Kilogram, M2Seventeen processes-M carried out respectively or together by working medium consisting of kg and H kg1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kg heat-absorbing vaporization process b3, H kg pressure process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M28a in kilogram working medium boosting process, ab in M kilogram working medium heat releasing condensation process, (M)2-M) one kilogram of working medium is boostedEquation a3, (M)1+M2) 34 kilogram working medium heat absorption process, 47X kilogram working medium pressure reduction process, (M)1+M2-X) kilogram working substance endothermic Process 45, (M)1+M2-X) decompression Process 56 with kg of working substance, (M)1+M2-X) kilogram working substance exothermic process 6f, (M)1+M2-X) Heat-releasing Process f7 of mixing of kg working substance with H kg working substance, (M)1+M2) Mixing and heat releasing process 78 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
Description of the drawings:
FIG. 1 is an exemplary illustration of a 1 st principal flow scheme for a single-working-medium combined-steam cycle provided in accordance with the present invention.
FIG. 2 is an exemplary diagram of a 2 nd schematic flow diagram of a single-working-medium vapor combined cycle according to the present invention.
FIG. 3 is an exemplary diagram of a3 rd principle flow of a single-working-medium vapor combined cycle according to the present invention.
FIG. 4 is a diagram illustrating an example of the 4 th principle flow of a single-working-medium vapor combined cycle according to the present invention.
FIG. 5 is an exemplary diagram of a5 th principle flow of a single-working-medium vapor combined cycle according to the present invention.
FIG. 6 is an exemplary diagram of a 6 th principle flow of a single-working-medium vapor combined cycle according to the present invention.
FIG. 7 is a diagram illustrating an example of the 7 th principle flow of a single-working-medium vapor combined cycle according to the present invention.
FIG. 8 is an exemplary diagram of an 8 th principle flow of a single-working-medium combined steam cycle according to the present invention.
FIG. 9 is an exemplary diagram of a 9 th principle flow of a single-working-medium vapor combined cycle according to the present invention.
FIG. 10 is an exemplary diagram of a 10 th principle flow of a single-working-medium vapor combined cycle according to the present invention.
FIG. 11 is an exemplary 11 th principle flow of a single-working-medium combined-steam cycle according to the present invention.
FIG. 12 is a schematic diagram illustrating an exemplary 12 th principle flow of a single-working-medium vapor combined cycle according to the present invention.
The specific implementation mode is as follows:
it is to be noted that, in the description of the structure and the flow, the repetition is not necessary; obvious flow is not described. The invention is described in detail below with reference to the figures and examples.
The single-working-medium steam combined cycle example in the T-s diagram of fig. 1 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1The kilogram working medium absorbs heat to heat, vaporize and overheat 23, the H kilogram working medium condensate liquid pressure-increasing 1e, the H kilogram working medium and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e6, M2Kilogram working medium pressure-rising and temperature-rising process 63, (M)1+M2) Kilogram working medium heat absorption temperature rise process 34, (M)1+M2) Decompression expansion process 45 with kilogram working medium, (M)1+M2) Kilogram working medium heat release cooling process 5f, (M)1+M2) The heat releasing and temperature lowering process f6 of mixing kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization expansion Process 67, (M)1+ H) kg working medium exothermic condensation 71-11 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1Process 23 and (M) in kg of working medium1+M2) The heat load required for the 34 process per kilogram of working medium is provided by an external heat source, or by an external heat source and (M)1+M2) The heat release (recuperation) of the process of kg of working medium 5 f.
② exothermic Process- (M)1+M2) The heat released in the process of 5f of the kilogram working medium can be provided for the outside or other links of circulation to meet corresponding heat requirements; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 6 points to finish the process of f 6; (M)1+ H) kgThe working medium releases heat in the 71 process, and is generally released to a low-temperature heat source and provided to a heat user during heat cogeneration.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2The boosting process 63 of kilogram working media is generally completed by a compressor; (M)1+M2) Decompression expansion process 45 and (M) of kilogram working medium1+ H) kilogram working medium depressurization expansion process 67, generally accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 2 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1Kilogram working medium heat absorption temperature rise, vaporization and overheating process 23, M1Decompression expansion process of working medium of kilogram 35, boosting process of condensate of working medium of H kilogram 1e, working medium of H kilogram and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e7, M2Step-up and temperature-rise process 74, M of kilogram working medium2Kilogram working medium heat absorption temperature rise process 45, (M)1+M2) Decompression expansion Process 56 with kilogram working Medium, (M)1+M2) Kilogram working medium heat release cooling process 6f, (M)1+M2) The heat releasing and temperature lowering process f7 of mixing kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization expansion process 78, (M)1+ H) kilogram working medium exothermal condensation process 81-12 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1Working with 23 kg of working medium and M2The heat load required for the 45-process per kilogram of working medium is provided by an external heat source, or by an external heat source and (M)1+M2) The heat release (recuperation) of the process of kg of working medium 6 f.
② exothermic Process- (M)1+M2) The heat release in the 6f process of the kilogram working medium can be outwardOr other links of the cycle to meet the corresponding thermal requirements; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 7 points to finish the process of f 7; (M)1+ H) kilogram working medium carries out heat release of 81 processes, generally releases to low-temperature heat source, provides to heat user when heat is supplied jointly.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2The boosting process 74 of kilograms of working fluid is generally accomplished by a compressor; m1Decompression expansion process 35 of kilogram working medium, (M)1+M2) Decompression expansion process 56 for kilogram of working medium, and (M)1+ H) kilogram working medium depressurization expansion process 78, typically accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 3 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M125 kg working medium heat absorption temperature rise, vaporization and overheating process, 1e H kg working medium condensate pressure rise process, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e7, M2Boosting and heating process 73, M of kilogram working medium234, M kilogram working medium heat absorption temperature rise process2Decompression expansion process 45 with kilogram working medium, (M)1+M2) Decompression expansion Process 56 with kilogram working Medium, (M)1+M2) Kilogram working medium heat release cooling process 6f, (M)1+M2) The heat releasing and cooling process f7 of mixing kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization expansion process 78, (M)1+ H) kilogram working medium exothermal condensation process 81-12 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M125 processes and M are carried out per kilogram of working medium2Heat load required for 34 kg processProvided by an external heat source, or by an external heat source and (M)1+M2) The heat release (recuperation) of the process of kg of working medium 6 f.
② exothermic Process- (M)1+M2) The heat released in the process of kilogram working media 6f can be provided for the outside or other links of circulation to meet corresponding heat requirements; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 7 points to finish the process of f 7; (M)1+ H) kilogram working medium carries out heat release of 81 processes, generally releases to low-temperature heat source, provides to heat user when heat is supplied jointly.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2The boosting process 73 of kilogram working medium is generally completed by a compressor; m2Decompression expansion process 45 of kilogram working medium, (M)1+M2) Decompression expansion process 56 for kilogram of working medium, and (M)1+ H) kilogram working medium depressurization expansion process 78, typically accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 4 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1Kilogram working medium heat absorption temperature rise, vaporization and overheating process 23, M1Decompression expansion process of working medium of kilogram 37, boosting process of condensate of working medium of H kilogram 1e, working medium of H kilogram and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e8, M2Boosting and heating process 84, M of kilogram working medium245, M kilogram working medium heat absorption temperature rise process2Decompression expansion process 56, M of kilogram working medium2Kilogram working medium heat release cooling process 67, (M)1+M2) Kilogram working medium heat release cooling process 7f, (M)1+M2) The heat releasing and cooling process f8 of mixing kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium decompression expansion process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-13 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1Working with 23 kg of working medium and M2The heat load required for 45 processes per kilogram of working medium is provided by an external heat source or by the external heat source and M1Kilogram working medium 67 process and (M)1+M2) The combined heat release (recuperation) of the process of kg working medium 7 f.
② exothermic Process-M1Kilogram working matter 67 process and (M)1+M2) The process of kilogram working medium 7f is provided for the external or other circulation links to meet corresponding heat requirements; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 8 points to finish the process of f 8; (M)1+ H) kilogram working medium carries out the heat release of 91 processes, generally releases to low temperature heat source, provides to the heat user when the heat is supplied jointly.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2The boosting 84 of kilogram of working fluid is generally accomplished by a compressor; m1Decompression process of kilogram working medium 37, M2Depressurization 56 of kg of working medium, also (M)1+ H) kilogram working medium depressurization expansion process 89, generally accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 5 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1Kilogram working medium heat absorption temperature rise, vaporization and overheating process 23, M1Decompression expansion process 34, M of kilogram working medium147 kg working medium heat release and temperature reduction process, 1e H kg working medium condensate pressure increase process, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e8, M2Boosting by kilogram working mediumTemperature rise process 85, M256, M kilogram working medium heat absorption temperature rise process2Decompression expansion Process 67 with kilogram working Medium, (M)1+M2) Kilogram working medium heat release cooling process 7f, (M)1+M2) The heat releasing and cooling process f8 of mixing kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium decompression expansion process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-13 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1Working with 23 kg of working medium and M2The heat load required for 56 processes per kilogram of working medium is provided by an external heat source, or by the external heat source and M147 kg working medium and (M)1+M2) The combined heat release (recuperation) of the process of kg working medium 7 f.
② exothermic Process-M1Kilogram working medium 47 Process and (M)1+M2) The process of kilogram working medium 7f is provided for the external or other circulation links to meet corresponding heat requirements; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 8 points to finish the process of f 8; (M)1+ H) kilogram working medium carries out the heat release of 91 processes, generally releases to low temperature heat source, provides to the heat user when the heat is supplied jointly.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2The boosting process 85 of kilogram working media is generally completed by a compressor; m1Decompression expansion process 34, M of kilogram working medium2Decompression expansion process 67 of kilogram working medium, and also (M)1+ H) kilogram working medium depressurization expansion process 89, generally accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 6 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1The kilogram working medium absorbs heat to heat, vaporize and overheat 23, the H kilogram working medium condensate liquid pressure-increasing 1e, the H kilogram working medium and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e8, M2Kilogram working medium pressure-rising and temperature-rising process 83, (M)1+M2) 34 kilogram working medium heat absorption and temperature rise process, 47X kilogram working medium pressure reduction and expansion process, (M)1+M2-X) kilogram working medium endothermic heating process 45, (M)1+M2-X) kilogram working medium depressurization expansion Process 56, (M)1+M2-X) kilogram working medium exothermic cooling process 6f, (M)1+M2-X) kg of working medium and H kg of working medium are mixed to release heat and reduce the temperature f7, (M)1+M2) (M) Cooling Process 78 with Heat Release from the mixture of kilogram working Medium and H kilogram working Medium1+ H) kilogram working medium decompression expansion process 89, (M)1+ H) kilogram working medium exothermal condensation process 91-14 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1Carrying out 23 processes (M) by kg of working medium1+M2) 34 kg of working medium and (M)1+M2-X) the heat load required for the 45 kilogram process is provided by an external heat source, or by an external heat source and (M)1+M2X) the heat release (recuperation) of the kilogram of working medium 67.
② exothermic Process- (M)1+M2-X) the heat release of the process of kg of working substance 6f, which can be provided externally or to other parts of the cycle to meet the corresponding heat demand; (M)1+M2-X) discharging heat from H kg of working medium in a mixing manner, and cooling to 7 points to complete the f7 process; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 8 points to finish 78 processes; (M)1+ H) kilogram working medium carries out the heat release of 91 processes, generally releases to low temperature heat source, provides to the heat user when the heat is supplied jointly.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2The boosting process 83 of kilogram working medium is generally completed by a compressor; x kilogram workerReduced pressure expansion process 47, (M)1+M2X) decompression expansion process 56 of kg of working medium, and also (M)1+ H) kilogram working medium depressurization expansion process 89, generally accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 7 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1Kilogram working medium heat absorption temperature rise process 2b, (M)1+ M) kg working medium heat absorption temperature rise, vaporization and overheating process b3, H kg working medium condensate pressure rise process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e6, M2Step-up and temperature-rise process of kilogram working medium 6a, M kilogram working medium and M1Ab (M) of the condensation process of the heat released by the mixture of kilograms of working medium2-M) kilogram working medium pressure and temperature rising process a3, (M)1+M2) Kilogram working medium heat absorption temperature rise process 34, (M)1+M2) Decompression expansion process 45 with kilogram working medium, (M)1+M2) Kilogram working medium heat release cooling process 5f, (M)1+M2) The heat releasing and cooling process f6 of mixing kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization expansion Process 67, (M)1+ H) kg working medium exothermic condensation 71-14 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1The heat absorption of the kilogram working medium in the 2b process comes from the mixed heat release of M kilograms of superheated steam, (M)1+ M) kg of working medium for process b3 and (M)1+M2) The heat load required for the 34 process per kilogram of working medium is provided by an external heat source, or by an external heat source and (M)1+M2) The heat release (recuperation) of the process of kg of working medium 5 f.
② exothermic Process- (M)1+M2) The heat release in the process of 5f of kilogram working medium can be provided for the external or other circulation links to meet the requirementA heat demand; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 6 points to finish the process of f 6; (M)1+ H) kilogram working medium carries out heat release in 71 processes, generally releases to low-temperature heat source, and provides to heat user during heat-power combined supply.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2Boosting process 6a and (M) with kilogram working medium2M) the boosting process a3 of kg of working medium is generally carried out by a compressor; (M)1+M2) Decompression expansion process 45 of kilogram working medium, and (M)1+ H) kilogram working medium depressurization expansion process 67, generally accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 8 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1Kilogram working medium heat absorption temperature rise process 2b, (M)1+ M) kilogram working medium endothermic heating, vaporization and superheating process b3 (M)1+ M) kg working medium decompression expansion process 35, H kg working medium condensate boosting process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e7, M2Boosting and heating process 7a of kilogram working medium, M kilogram working medium and M1Ab (M) of the condensation process of the heat released by the mixture of kilograms of working medium2-M) kilogram working medium pressure and temperature rising process a4, (M)2-M) Heat absorption temperature increase Process 45 with kilogram working Medium, (M)1+M2) Decompression expansion Process 56 with kilogram working Medium, (M)1+M2) Kilogram working medium heat release cooling process 6f, (M)1+M2) The heat releasing and cooling process f7 of mixing kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization expansion process 78, (M)1+ H) kilogram working medium exothermal condensation process 81-15 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1The heat absorption of the kilogram working medium in the 2b process comes from the mixed heat release of M kilograms of superheated steam, (M)1+ M) kg of working medium for process b3 and (M)2M) the thermal load required for the 45-process with kg of working medium is provided by an external heat source, or by an external heat source and (M)1+M2) The heat release (recuperation) of the process of kg of working medium 6 f.
② exothermic Process- (M)1+M2) The heat released in the process of kilogram working media 6f can be provided for the outside or other links of circulation to meet corresponding heat requirements; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 7 points to finish the process of f 7; (M)1+ H) kilogram working medium carries out heat release of 81 processes, generally releases to low-temperature heat source, provides to heat user when heat is supplied jointly.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2Boosting processes 7a and (M) with kilograms of working substance2M) the boosting process a4 of kg of working medium is generally carried out by a compressor; (M)1+ M) decompression expansion process 35 of kilogram working medium, (M)1+M2) Decompression expansion process 56 for kilogram of working medium, and (M)1+ H) kilogram working medium depressurization expansion process 78, typically accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 9 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1Kilogram working medium heat absorption temperature rise process 2b, (M)1+ M) kg working medium heat absorption temperature rise, vaporization and overheating process b5, H kg working medium condensate pressure rise process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e7, M2Boosting and heating process 7a of kilogram working medium, M kilogram working medium and M1Mixed heat release and cooling of kilogram working mediumProcess ab, (M)2-M) kilogram working medium pressure and temperature rising process a3, (M)2-M) kilogram working medium endothermic heating process 34, (M)2-M) kilogram working medium decompression expansion Process 45, (M)1+M2) Decompression expansion Process 56 with kilogram working Medium, (M)1+M2) Kilogram working medium heat release cooling process 6f, (M)1+M2) The heat releasing and cooling process f7 of mixing kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization expansion process 78, (M)1+ H) kilogram working medium exothermal condensation process 81-15 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1The heat absorption of the kilogram working medium in the 2b process comes from the mixed heat release of M kilograms of superheated steam, (M)1+ M) kg of working medium for process b5 and (M)2M) the heat load required for the 34-process per kilogram of working medium is provided by an external heat source, or by an external heat source and (M)1+M2) The heat release (recuperation) of the process of kg of working medium 6 f.
② exothermic Process- (M)1+M2) The heat released in the process of kilogram working media 6f can be provided for the outside or other links of circulation to meet corresponding heat requirements; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 7 points to finish the process of f 7; m1The heat release of 81 process is carried out by kilogram working medium, and the heat release is generally released to a low-temperature heat source and provided to a heat user during heat power combined supply.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2Boosting processes 7a and (M) with kilograms of working substance2M) the boosting process a3 of kg of working medium is generally carried out by a compressor; (M)2M) decompression expansion Process 45 of kg of working fluid, (M)1+M2) Decompression expansion process 56 for kilogram of working medium, and (M)1+ H) kilogram working medium depressurization expansion process 78, typically accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 10 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1Kilogram working medium heat absorption temperature rise process 2b, (M)1+ M) kilogram working medium endothermic heating, vaporization and superheating process b3 (M)1+ M) kg working medium decompression expansion process 37, H kg working medium condensate boosting process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e8, M2Boosting and heating process of kilogram working medium 8a, M kilogram working medium and M1Ab (M) of the condensation process of the heat released by the mixture of kilograms of working medium2-M) kilogram working medium pressure and temperature rising process a4, (M)2-M) Heat absorption temperature increase Process 45 with kilogram working Medium, (M)2-M) kilogram working medium depressurization expansion Process 56, (M)2-M) kilogram working medium exothermic cooling process 67, (M)1+M2) Kilogram working medium heat release cooling process 7f, (M)1+M2) The heat releasing and cooling process f8 of mixing kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium decompression expansion process 89, (M)1+ H) kilogram working medium exothermal condensation process 91-16 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1The heat absorption of the kilogram working medium in the 2b process comes from the mixed heat release of M kilograms of superheated steam, (M)1+ M) kg of working medium for process b3 and (M)2M) the thermal load required for the 45-process with kg of working medium is provided by an external heat source, or by an external heat source and (M)2-M) kg working fluid 67 Process and (M)1+M2) The combined heat release (recuperation) of the process of kg working medium 7 f.
② exothermic Process- (M)2-M) kilogram working medium 67 Process and (M)1+M2) The process of kilogram working medium 7f is provided for the external or other circulation links to meet corresponding heat requirements; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 8 points to finish the process of f 8; m1The heat released from the 91-step process is released to low-temperature heat source and heat supplied to heat powerAnd providing by a user.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2Boosting process 8a and (M) of kilogram working medium2M) the boosting process a4 of kg of working medium is generally carried out by a compressor; (M)1+ M) decompression of working medium kg 37 (M)2-M) depressurization of kg of working medium 56, and also (M)1+ H) kilogram working medium depressurization expansion process 89, generally accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 11 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1Kilogram working medium heat absorption temperature rise process 2b, (M)1+ M) kilogram working medium endothermic heating, vaporization and superheating process b3 (M)1+ M) kilogram working medium depressurization expansion process 34, (M)1+ M) kg of working medium for heat release and cooling process 47, H kg of working medium condensate for pressure rise process 1e, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e8, M2Boosting and heating process of kilogram working medium 8a, M kilogram working medium and M1Ab (M) of the condensation process of the heat released by the mixture of kilograms of working medium2-M) kilogram working medium pressure and temperature rising process a5, (M)2-M) Heat absorption and temperature increase Process 56 with kilogram working Medium (M)2-M) kilogram working medium depressurization expansion path 67, (M)1+M2) Kilogram working medium heat release cooling process 7f, (M)1+M2) The heat releasing and cooling process f8 of mixing kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium decompression expansion process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-16 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1The heat absorption of the kilogram working medium in the 2b process comes from the mixed heat release of M kilograms of superheated steam, (M)1+ M) kg of working mediumLine b3 procedures and (M)2M) Heat load required for 56 processes with kg of working substance is provided by an external Heat Source, or by an external Heat Source and (M)1+ M) kilogram working medium 47 process and (M)1+M2) The combined heat release (recuperation) of the process of kg working medium 7 f.
② exothermic Process- (M)1+ M) kilogram of working fluid 47 Process and (M)1+M2) The process of kilogram working medium 7f is provided for the external or other circulation links to meet corresponding heat requirements; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 8 points to finish the process of f 8; m1The heat released in the process of 91 kg of working medium is generally released to a low-temperature heat source and is provided to a heat user during heat and power combined supply.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2Boosting process 8a and (M) of kilogram working medium2M) the boosting process a5 of kg of working medium is generally carried out by a compressor; (M)1+ M) decompression of working medium 34 (M)2-M) depressurization of kg of working medium 67, and also (M)1+ H) kilogram working medium depressurization expansion process 89, generally accomplished by an expander; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The single-working-medium vapor combined cycle example in the T-s diagram of fig. 12 is performed as follows:
(1) from the cycle process:
working medium process-M1Boosting process of kilogram working medium condensate 12, M1Kilogram working medium heat absorption temperature rise process 2b, (M)1+ M) kg working medium heat absorption temperature rise, vaporization and overheating process b3, H kg working medium condensate pressure rise process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption temperature rise, vaporization and overheating process e8, M2Boosting and heating process of kilogram working medium 8a, M kilogram working medium and M1Ab (M) of the condensation process of the heat released by the mixture of kilograms of working medium2-M) kilogram working medium pressure and temperature rising process a3, (M)1+M2) Kilogram working medium heat absorption and temperature riseProcess 34, decompression expansion process 47 with X kg of working medium, (M)1+M2-X) kilogram working medium endothermic heating process 45, (M)1+M2-X) kilogram working medium depressurization expansion Process 56, (M)1+M2-X) kilogram working medium exothermic cooling process 6f, (M)1+M2-X) kg of working medium and H kg of working medium are mixed to release heat and reduce the temperature f7, (M)1+M2) (M) Cooling Process 78 with Heat Release from the mixture of kilogram working Medium and H kilogram working Medium1+ H) kilogram working medium decompression expansion process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-17 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1The heat absorption of the kilogram working medium in the 2b process comes from the mixed heat release of M kilograms of superheated steam, (M)1+ M) kg working medium to proceed b3 process, (M)1+M2) 34 kg of working medium and (M)1+M2-X) the heat load required for the 45 kilogram process is provided by an external heat source, or by an external heat source and (M)1+M2X) the heat release (recuperation) of the kilogram of working medium 6 f.
② exothermic Process- (M)1+M2-X) the heat release of the process of kg of working substance 6f, which can be provided externally or to other parts of the cycle to meet the corresponding heat demand; ((M)1+M2-X) discharging heat from H kg of working medium in a mixing manner, and cooling to 7 points to complete the f7 process; (M)1+M2) Releasing heat to H kilograms of working media in a mixing mode, and cooling to 8 points to finish 78 processes; m1The heat released in the process of 91 kg of working medium is generally released to a low-temperature heat source and is provided to a heat user during heat and power combined supply.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium and the boosting process 1e of H kilogram working medium are generally completed by a circulating pump, M2Boosting process 8a and (M) of kilogram working medium2M) the boosting process a3 of kg of working medium is generally carried out by a compressor; depressurization of X kg of working substance 47, (M)1+M2X) depressurization 56 of kg of working medium, and also (M)1+ H) kilogram working medium depressurization expansion process 89, typically from an expanderCompleting the process; the expansion work is larger than the pressure-raising power consumption, the heat-changing work is completed, the circulation net work is provided for the outside, and the single working medium steam combined circulation is formed.
The effect that the technology of the invention can realize-the single working medium steam combined cycle provided by the invention has the following effects and advantages:
(1) creating a thermal energy (temperature difference) utilization basic theory.
(2) The heat load in the phase change heat absorption process is greatly reduced, the heat absorption load in a high-temperature section is relatively increased, and the heat efficiency is high.
(3) The method is simple, reasonable in flow and good in applicability, and is a common technology for realizing effective utilization of temperature difference.
(4) The single working medium is beneficial to production and storage; reduce the running cost and improve the flexibility of circulation regulation
(5) The process is shared, the heat efficiency is improved, and a theoretical basis is provided for reducing the equipment investment.
(6) In the high temperature area or the variable temperature area, the circulating medium and the heat source medium are both gases, and the circulating working medium is in favor of reducing the temperature difference heat transfer loss from the heat source heat absorption link and improving the heat efficiency.
(7) The low-pressure high-temperature operation mode is adopted in the high-temperature area, so that the contradiction that the heat efficiency, the circulating medium parameters and the pressure and temperature resistance of the pipe are difficult to reconcile in the traditional steam power device is solved.
(8) On the premise of realizing high thermal efficiency, low-pressure operation can be selected, and theoretical support is provided for improving the operation safety of the device.
(9) The working medium has wide application range, can well adapt to energy supply requirements, and is flexibly matched with working parameters.
(10) The thermodynamic cycle range for realizing temperature difference utilization is expanded, and efficient power utilization of a high-temperature heat source and a variable-temperature heat source is favorably realized.

Claims (12)

1. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kilogram and H kilogram, eleven processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23 kg of working medium, pressure boosting process 1e of H kg of working medium, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e6, M2Kilogram working medium boosting process 63, (M)1+M2) Kilogram working medium endothermic process 34, (M)1+M2) Step-down 45 for kilogram working medium, (M)1+M2) Kilogram working medium heat release process 5f, (M)1+M2) Mixing kilogram working medium with H kilogram working medium to release heat process f6, (M)1+ H) kilogram working medium depressurization 67 (M)1+ H) kilogram working medium exothermal condensation process 71-the closed process of composition.
2. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kg and H kg, twelve processes-M-carried out separately or together1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process with working medium of 35 kg, boosting process with working medium of H kg 1e, working medium of H kg and (M)1+M2) Kilogram working medium mixing heat absorption process e7, M2Step-up process 74, M with kilogram working medium2Kilogram working medium endothermic process 45, (M)1+M2) Kilogram working medium depressurization 56 (M)1+M2) Kilogram working medium heat release process 6f, (M)1+M2) Mixing kilogram working medium with H kilogram working medium to release heat process f7, (M)1+ H) kilogram working medium depressurization 78 (M)1+ H) kilogram working medium exothermic condensation process 81-the closed process of composition.
3. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kg and H kg, twelve processes-M-carried out separately or together1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 25 kg of working medium, pressure boosting process 1e of H kg of working medium, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e7, M2Kilogram working medium boosting process 73, M234, M kilogram working medium heat absorption process2Step-down 45 for kilogram working medium, (M)1+M2) Kilogram working medium depressurization 56 (M)1+M2) Kilogram working medium heat release process 6f, (M)1+M2) Mixing heat release process f7 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization 78 (M)1+ H) kilogram working medium exothermic condensation process 81-the closed process of composition.
4. Single working medium steam combined cycle, is formed from M1Kilogram, M2Thirteen processes-M-carried out separately or together with one kilogram of working medium and one kilogram of working medium1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process with working medium of kilogram 37, boosting process with working medium of H kilogram 1e, working medium of H kilogram and (M)1+M2) Kilogram working medium mixing heat absorption processe8，M2Boosting process 84, M with kilogram working medium245, M kilogram working medium heat absorption process2Decompression process 56, M of kilogram working medium2Kilogram working medium exothermic process 67, (M)1+M2) Kilogram working medium heat release process 7f, (M)1+M2) Mixing heat release process f8 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
5. Single working medium steam combined cycle, is formed from M1Kilogram, M2Thirteen processes-M-carried out separately or together with one kilogram of working medium and one kilogram of working medium1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process 34, M of kilogram working medium1Heat release process 47 kg working medium, pressure increase process 1e H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M2Boosting process of 85, M for kilogram working medium256, M kilogram working medium heat absorption process2Kilogram working medium depressurization 67 (M)1+M2) Kilogram working medium heat release process 7f, (M)1+M2) Mixing heat release process f8 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process89，(M1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
6. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kilogram and H kilogram, fourteen processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23 kg of working medium, pressure boosting process 1e of H kg of working medium, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M2Kilogram working medium pressure rising process 83, (M)1+M2) 34 kilogram working medium heat absorption process, 47X kilogram working medium pressure reduction process, (M)1+M2-X) kilogram working substance endothermic Process 45, (M)1+M2-X) decompression Process 56 with kg of working substance, (M)1+M2-X) kilogram working substance exothermic process 6f, (M)1+M2-X) Heat-releasing Process f7 of mixing of kg working substance with H kg working substance, (M)1+M2) Mixing and heat releasing process 78 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
7. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kilogram and H kilogram, fourteen processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kg heat-absorbing vaporization process b3, H kg pressure process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e6, M26a in kilogram working medium boosting process, and M kilogram working medium heat release condensing processab，(M2M) kilogram working medium pressure increasing process a3, (M)1+M2) Kilogram working medium endothermic process 34, (M)1+M2) Step-down 45 for kilogram working medium, (M)1+M2) Kilogram working medium heat release process 5f, (M)1+M2) Mixing heat release process f6 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization 67 (M)1+ H) kilogram working medium exothermal condensation process 71-the closed process of composition.
8. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kg and H kg, fifteen processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kilogram working medium endothermic vaporization process b3, (M)1+ M) kg working medium depressurization 35, H kg working medium pressure boost 1eH kg of working substance and (M)1+M2) Kilogram working medium mixing heat absorption process e7, M2Kilogram working medium pressure-increasing process 7a, M kilogram working medium heat-releasing condensation process ab, (M)2M) kilogram working medium pressure increasing process a4, (M)2-M) kilogram working medium endothermic Process 45, (M)1+M2) Kilogram working medium depressurization 56 (M)1+M2) Kilogram working medium heat release process 6f, (M)1+M2) Mixing heat release process f7 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization 78 (M)1+ H) kilogram working medium exothermic condensation process 81-the closed process of composition.
9. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium consisting of kg and H kg, fifteen processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kg heat-absorbing vaporization process b5, H kg pressure process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e7, M2Kilogram working medium pressure-increasing process 7a, M kilogram working medium heat-releasing condensation process ab, (M)2M) kilogram working medium pressure increasing process a3, (M)2-M) kilogram working medium endothermic process 34, (M)2-M) decompression Process 45 with kg of working substance (M)1+M2) Kilogram working medium depressurization 56 (M)1+M2) Kilogram working medium heat release process 6f, (M)1+M2) Mixing heat release process f7 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurizationEquation 78, (M)1+ H) kilogram working medium exothermic condensation process 81-the closed process of composition.
10. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium composed of kg and H kg, sixteen processes-M carried out separately or together1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kilogram working medium endothermic vaporization process b3, (M)1+ M) kg of working medium for depressurization 37, H kg of working medium for pressure increase 1e, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M28a in kilogram working medium boosting process, ab in M kilogram working medium heat releasing condensation process, (M)2M) kilogram working medium pressure increasing process a4, (M)2-M) kilogram working medium endothermic Process 45, (M)2-M) decompression Process 56 with kg working substance (M)2M) kilogram working substance exothermic Process 67, (M)1+M2) Kilogram working medium heat release process 7f, (M)1+M2) Mixing heat release process f8 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
11. Single working medium steam combined cycle, is formed from M1Kilogram, M2Working medium composed of kg and H kg, sixteen processes-M carried out separately or together1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kilogram working medium endothermic vaporization process b3, (M)1+ M) kilogram working medium depressurization 34, (M)1+ M) kg of working medium for heat release 47, H kg of working medium for pressure rise 1e, H kg of working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M28a in kilogram working medium boosting process, ab in M kilogram working medium heat releasing condensation process, (M)2M) kilogram working medium pressure increasing process a5, (M)2M) kilogram working medium endothermic Process 56, (M)2-M) decompression Process 67 with kg working Medium, (M)1+M2) Kilogram working medium heat release process 7f, (M)1+M2) Kilogram working medium and H thousandG working medium mixing heat release process f8, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
12. Single working medium steam combined cycle, is formed from M1Kilogram, M2Seventeen processes-M carried out respectively or together by working medium consisting of kg and H kg1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kg heat-absorbing vaporization process b3, H kg pressure process 1e, H kg working medium and (M)1+M2) Kilogram working medium mixing heat absorption process e8, M28a in kilogram working medium boosting process, ab in M kilogram working medium heat releasing condensation process, (M)2M) kilogram working medium pressure increasing process a3, (M)1+M2) 34 kilogram working medium heat absorption process, 47X kilogram working medium pressure reduction process, (M)1+M2-X) kilogram working substance endothermic Process 45, (M)1+M2-X) decompression Process 56 with kg of working substance, (M)1+M2-X) kilogram working substance exothermic process 6f, (M)1+M2-X) Heat-releasing Process f7 of mixing of kg working substance with H kg working substance, (M)1+M2) Mixing and heat releasing process 78 of kilogram working medium and H kilogram working medium, (M)1+ H) kilogram working medium depressurization process 89, (M)1+ H) kilogram working medium exothermic condensation process 91-the closed process of composition.
CN202010329980.5A 2019-04-23 2020-04-17 Single working medium steam combined cycle Pending CN111608755A (en)

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FR2178386A5 (en) * 1972-03-30 1973-11-09 Babcock Atlantique Sa Carbon dioxide heat engine - with compounded thermal cycle for optimized efficiency
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US4876855A (en) * 1986-01-08 1989-10-31 Ormat Turbines (1965) Ltd. Working fluid for rankine cycle power plant
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