CN111636935A - Single working medium steam combined cycle - Google Patents

Single working medium steam combined cycle Download PDF

Info

Publication number
CN111636935A
CN111636935A CN202010330660.1A CN202010330660A CN111636935A CN 111636935 A CN111636935 A CN 111636935A CN 202010330660 A CN202010330660 A CN 202010330660A CN 111636935 A CN111636935 A CN 111636935A
Authority
CN
China
Prior art keywords
working medium
kilogram
kilogram working
heat
heat release
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010330660.1A
Other languages
Chinese (zh)
Inventor
李鸿瑞
李华玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CN111636935A publication Critical patent/CN111636935A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • 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
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/02—Controlling, e.g. stopping or starting
    • 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
    • F01K21/00—Steam engine plants not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • 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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • 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
    • 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
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
    • 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
    • F01K25/08—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 special vapours

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

The invention provides a single working medium steam combined cycle, and belongs to the technical field of energy and power. Single working medium steam combined cycle, is formed from M1Kilogram and M2Eight processes-M-carried out separately or together with one kilogram of working medium1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium2Kilogram working medium boosting process 63, M334, M kilogram working medium heat absorption process345, M kilogram working medium depressurization process3Heat release process 56, M of kilogram working medium1Decompression process with kilogram working medium 67, M1Kilogram working medium heat release condensation process 71-a closed process of composition; wherein M is3Is M1And M2And (4) summing.

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 and M2Eight processes-M-carried out separately or together with one kilogram of working medium1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium2Kilogram working medium boosting process 63, M334, M kilogram working medium heat absorption process345, M kilogram working medium depressurization process3Heat release process 56, M of kilogram working medium1Decompression process with kilogram working medium 67, M1Kilogram working medium heat release condensation process 71-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
2. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilogram, nine processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process of working medium kilogram 35, M2Step-up process 74, M with kilogram working medium245, M kilogram working medium heat absorption process3Decompression process 56, M of kilogram working medium3Heat release process 67, M per kilogram of working medium1Decompression process 78, M with kilogram working medium1Kilogram working medium heat release condensation process 81-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
3. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilogram, nine processes carried out separately or together-M1Step-up process of working medium kilogram 12, M125, M kilogram working medium heat absorption vaporization process2Kilogram working medium boosting process 73, M234, M kilogram working medium heat absorption process245, M kilogram working medium depressurization process3Decompression process 56, M of kilogram working medium3Heat release process 67, M per kilogram of working medium1Decompression process 78, M with kilogram working medium1Kilogram working medium heat release condensation process 81-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
4. Single working medium steam combined cycle, is formed from M1Kilogram and M2Ten processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process of kilogram working medium 37, M2Boosting process 84, M with kilogram working medium2Kilogram working medium absorbs heatEquation 45, M2Decompression process 56, M of kilogram working medium2Heat release process 67, M per kilogram of working medium378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
5. Single working medium steam combined cycle, is formed from M1Kilogram and M2Ten processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process 34, M of kilogram working medium147, M working medium kilogram heat release process2Boosting process of 85, M for kilogram working medium256, M kilogram working medium heat absorption process2Decompression process with kilogram working medium 67, M378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
6. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilograms of composition, eleven processes carried out individually or jointly or partially-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium2Kilogram working medium pressure rising process 83, M334 kilogram working medium heat absorption process, 47X kilogram working medium pressure reduction process, (M)3-X) kilogram working substance endothermic Process 45, (M)3-X) decompression Process 56 with kg of working substance, (M)3-X) kilogram working substance exothermic process 67, M378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
7. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilograms of composition, eleven processes carried out individually or jointly or partially-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, M2Kilogram working medium pressure increasing process 6a, M kilogram working medium heat releasing condensation process ab, (M)2M) kilogram working medium pressure rise process a3, M334, M kilogram working medium heat absorption process345, M kilogram working medium depressurization process3Heat release process 56, M of kilogram working medium1Decompression process with kilogram working medium 67, M1Kilogram working medium heat release condensation process 71-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
8. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilograms of composition, twelve processes carried out separately or together or in part-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) kilogram working medium depressurization process 35, 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) 45, M) Heat absorption Process of kilogram working Medium3Decompression process 56, M of kilogram working medium3Heat release process 67, M per kilogram of working medium1Decompression process 78, M with kilogram working medium1Kilogram working medium heat release condensation process 81-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
9. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilograms of composition, twelve processes carried out separately or together or in part-M1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kilogram working medium endothermic vaporization process b5, 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) depressurization of 45 kg of working medium, M3Decompression process 56, M of kilogram working medium3Heat release process 67, M per kilogram of working medium1Decompression process 78, M with kilogram working medium1Kilogram working medium heat release condensation process 81-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
10. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working substances in kilogram composition, thirteen processes carried out individually or jointly or in part-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) kilogram working medium depressurization 37, 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) one kilogram of working medium exothermic Process 67, M378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
11. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working substances in kilogram composition, thirteen processes carried out individually or jointly or in part-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) kilogram working medium depressurization 34, (M)1+ M) kilogram working medium exothermic process 47, 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) depressurization of 67, M) kg of working medium378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
12. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilograms of composition, fourteen processes carried out separately or together or partially-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, M28a in kilogram working medium boosting process, ab in M kilogram working medium heat releasing condensation process, (M)2M) kilogram working medium pressure rise process a3, M334 kilogram working medium heat absorption process, 47X kilogram working medium pressure reduction process, (M)3-X) kilogram working substance endothermic Process 45, (M)3-X) decompression Process 56 with kg of working substance, (M)3-X) kilogram working substance exothermic process 67, M378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
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 should be noted that, in terms of the expression of the structure and the flow, the description is not repeated if necessary, and the obvious flow is not expressed; in each of the following examples, M3Is M1And M2Summing; 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, M1Kilogram working medium heat absorption temperature rise, vaporization and overheating process 23, M2Pressure and temperature rising process 63, M of kilogram working medium334, M kilogram working medium heat absorption temperature rise process3Decompression expansion process 45, M of kilogram working medium356, M kilogram working medium heat release and temperature reduction process1Decompression expansion process of kilogram working medium 67, M1Kilogram working medium exothermal condensation 71-8 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1Working with 23 kg of working medium and M3The 34 process is carried out by kilogram working medium, 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 the external heat source or by M3The kilogram of working medium is provided by heat release (recuperation) of the 56 process, or by both.
② exothermic Process-M3The heat release of 56 kg working medium can be carried out, corresponding heat requirements can be met, or partial or all heat absorption requirements for other processes of combined cycle can be met, and useless parts are released to a low-temperature heat source (such as environment); m1The heat release of the kilogram working medium in the 71 process is generally released to a low-temperature heat source, and is provided to a heat user during heat power combined supply.
③ energy conversion Process-M1Liter of kilogram working mediumThe pressing process 12 is generally carried out by means of a circulation pump, M2The boosting 63 of the kilogram of working medium is generally effected by a compressor, M3Decompression expansion process 45 and M of kilogram working medium1The kilogram working medium decompression expansion process 67 is generally completed by an expansion machine; 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 kilogram working medium 35, M2Step-up and temperature-rise process 74, M of kilogram working medium245, M kilogram working medium heat absorption temperature rise process3Decompression expansion process 56, M of kilogram working medium3Heat release and temperature reduction process 67, M of kilogram working medium1Decompression expansion process 78, M with kilogram working medium1Kilogram working medium exothermal condensation process 81-9 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1Working with 23 kg of working medium and M2The 45 process is carried out by kilogram working medium, 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 the external heat source or M3The kilogram of working medium is provided by heat release (back heating) of 67 processes, or by both.
② exothermic Process-M3The kilogram working medium is used for heat release in the 67 process, so that corresponding heat requirements can be met, or part or most of heat absorption requirements for other processes of combined cycle can be met, and useless parts are released to a low-temperature heat source (such as environment); 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 is generally completed by a circulating pump, M2The boosting 74 of the kilogram of working medium is generally effected by a compressor, M1Decompression expansion process of kilogram working medium 35, M3Decompression expansion process 56 and M of kilogram working medium1The kilogram working medium decompression expansion process 78 is generally completed by an expansion machine; 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, M kilogram working medium absorbs heat to raise temperature, vaporize and overheat2Boosting and heating process 73, M of kilogram working medium234, M kilogram working medium heat absorption temperature rise process2Decompression expansion process 45, M of kilogram working medium3Decompression expansion process 56, M of kilogram working medium3Heat release and temperature reduction process 67, M of kilogram working medium1Decompression expansion process 78, M with kilogram working medium1Kilogram working medium exothermal condensation process 81-9 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M125 processes and M are carried out per kilogram of working medium2The 34 process is carried out by kilogram working medium, 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 the external heat source or by M3The kilogram of working medium is provided by heat release (back heating) of 67 processes, or by both.
② exothermic Process-M3The kilogram working medium is used for heat release in the 67 process, so that corresponding heat requirements can be met, or part or most of heat absorption requirements for other processes of combined cycle can be met, and useless parts are released to a low-temperature heat source (such as environment); 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 is generally completed by a circulating pump, M2The boosting 73 of the kilogram of working medium is generally carried out by a compressor, M2Decompression expansion process 45, M of kilogram working medium3Decompression expansion process 56 and M of kilogram working medium1The kilogram working medium decompression expansion process 78 is generally completed by an expansion machine; 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 37, M of kilogram working medium2Boosting 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 medium2Heat release and temperature reduction process 67, M of kilogram working medium378, M kilogram working medium heat release and temperature reduction process1Decompression expansion process 89, M with kilogram working medium1Kilogram working medium releases heat and condenses 91-10 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1Working with 23 kg of working medium and M2The 45-kilogram working medium is subjected to the process, and the heat absorption of the high-temperature section is generally provided by an external heat source; the heat absorption of the low-temperature section is performed by an external heat source or by M267 processes and M are carried out by kilogram working medium3The kilogram of working medium is provided by the combined heat release (recuperation) of the 78 processes, or by both.
② exothermic Process-M2Heat release and M of 67 processes per kilogram of working medium3Heat release in the 78 process is carried out by kilogram working media, corresponding heat requirements can be met, or part or most of heat absorption requirements for other processes of combined cycle can be met, and useless parts are released to a low-temperature heat source (such as environment); 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 is generally completed by a circulating pump, M2Boosting 84 by compression in kg of working fluidIs mechanically completed, M1Decompression process of kilogram working medium 37, M2Depressurization 56 and M of kilogram of working medium1The kilogram working medium decompression expansion process 89 is generally completed by an expansion machine; 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, M kilogram working medium heat release and temperature reduction process2Boosting and heating process of 85, M for kilogram working medium256, M kilogram working medium heat absorption temperature rise process2Decompression expansion process of kilogram working medium 67, M378, M kilogram working medium heat release and temperature reduction process1Decompression expansion process 89, M with kilogram working medium1Kilogram working medium releases heat and condenses 91-10 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1Working with 23 kg of working medium and M256 kg of working medium is subjected to the process, and the heat absorption of the high-temperature section is generally provided by an external heat source; the heat absorption of the low-temperature section is performed by an external heat source or by M147 kg of working medium and M3The kilogram of working medium is provided by the combined heat release (recuperation) of the 78 processes, or by both.
② exothermic Process-M147 process heat release and M carried out by kilogram working medium3Heat release in the 78 process is carried out by kilogram working media, corresponding heat requirements can be met, or part or most of heat absorption requirements for other processes of combined cycle can be met, and useless parts are released to a low-temperature heat source (such as environment); 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 is generally carried out by a circulating pumpTo accomplish, M2The boosting process 85 of kilogram of working medium is generally completed by a compressor, M1Depressurization 34 and M of kilogram of working medium2Depressurization of working substances in kilograms 67 and M1The kilogram working medium decompression expansion process 89 is generally completed by an expansion machine; 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, M1Kilogram working medium heat absorption temperature rise, vaporization and overheating process 23, M2Kilogram working medium pressure-rising and temperature-rising process 83, M334 kilogram working medium heat absorption and temperature rise process, 47X kilogram working medium pressure reduction and expansion process, (M)3-X) kilogram working medium endothermic heating process 45, (M)3-X) kilogram working medium depressurization expansion Process 56, (M)3-X) kg working medium exothermic cooling process 67, M378, M kilogram working medium heat release and temperature reduction process1Decompression process 89, M with kilogram working medium1And the kilogram working medium releases heat and is condensed 91-11 processes.
(2) From the energy conversion perspective:
① endothermic Process-M1Carrying out 23 processes and M on kilogram working media334 kg of working medium and (M)3-X) kg is processed 45 times, the heat absorption of the high temperature section is generally provided by an external heat source; the heat absorption of the low-temperature section is performed by an external heat source or (M)3-X) 67 processes and M are carried out with kg of working medium3The kilogram of working medium is provided by the combined heat release (recuperation) of the 78 processes, or by both.
② exothermic Process- (M)3X) Heat Release from 67 Processes with kg of working Medium and M3Heat release in the 78 process is carried out by kilogram working media, corresponding heat requirements can be met, or part or most of heat absorption requirements for other processes of combined cycle can be met, and useless parts are released to a low-temperature heat source (such as environment); m1The kilogram working medium is subjected to heat release in the process of 91 and is generally released to a low-temperature heat source,the thermodynamic union is provided to the thermal user.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium is generally completed by a circulating pump, M2The boosting process 83 of kilogram working medium is generally completed by a compressor, and the pressure reduction process 47, (M) of X kilogram working medium3X) depressurization of working substances 56 and M1The kilogram working medium decompression expansion process 89 is generally completed by an expansion machine; 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, M1Mixing heat absorption temperature rise process 2b of kilogram working medium and M kilogram working medium, (M)1+ M) kilogram working medium endothermic warming, vaporisation and superheating process b3, 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 medium2M) kilogram working medium pressure and temperature rising process a3, M334, M kilogram working medium heat absorption temperature rise process3Decompression expansion process 45, M of kilogram working medium356, M kilogram working medium heat release and temperature reduction process1Decompression expansion process of kilogram working medium 67, M1Kilogram working medium exothermal condensation 71-11 processes in total.
(2) From the energy conversion perspective:
① endothermic Process-M1Heat absorption of kilogram working medium in 2b process comes from mixed heat release of M kilogram superheated steam, M1B3 Process and M with kg working substance3The 34 process is carried out by kilogram working medium, 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 the external heat source or by M3The kilogram of working medium is provided by heat release (recuperation) of the 56 process, or by both.
② exothermic Process-M3The heat release of 56 processes is carried out by kilogram working medium, corresponding heat requirements can be met by the heat release, or part or all of the heat release is used for combined circulationThe endothermic demand of the process, the useless part is released to the low temperature heat source (such as environment); m1The heat release of the kilogram working medium in the 71 process is generally released to a low-temperature heat source, and is provided to a heat user during heat power combined supply.
③ energy conversion Process-M1The boosting process 12 of kilogram working medium is generally completed by a circulating pump, M2Boosting process 6a and (M) with kilogram working medium2M) boosting of the working medium a3 is generally carried out by a compressor, M3Decompression expansion process 45 and M of kilogram working medium1The kilogram working medium decompression expansion process 67 is generally completed by an expansion machine; 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, M1Mixing heat absorption temperature rise process 2b of kilogram working medium and M kilogram working medium, (M)1+ M) kilogram working medium endothermic heating, vaporization and superheating process b3 (M)1+ M) kilogram working medium decompression expansion process 35, 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) 45, M) kilogram working medium endothermic heating process3Decompression expansion process 56, M of kilogram working medium3Heat release and temperature reduction process 67, M of kilogram working medium1Decompression expansion process 78, M with kilogram working medium1Kilogram working medium exothermal condensation process 81-total 12 processes.
(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 23 passes and2m) 45 processes are carried out with kg of working medium, 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 the external heat source or by M367 process heat release is carried out by kilogram working medium(recuperation) or both.
② exothermic Process-M3The kilogram working medium is used for heat release in the 67 process, so that corresponding heat requirements can be met, or part or most of heat absorption requirements for other processes of combined cycle can be met, and useless parts are released to a low-temperature heat source (such as environment); 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 is generally completed by a circulating pump, M2Boosting processes 7a and (M) with kilograms of working substance2M) boosting of working fluid A4 by a compressor in general1+ M) decompression expansion process of working medium 35, M3Decompression expansion process 56 and M of kilogram working medium1The kilogram working medium decompression expansion process 78 is generally completed by an expansion machine; 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, M1Mixing heat absorption temperature rise process 2b of kilogram working medium and M kilogram working medium, (M)1+ M) kilogram working medium absorbs heat to raise temperature, vaporize and overheat process b5, 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 a3, (M)2-M) kilogram working medium endothermic heating process 34, (M)2-M) decompression expansion process 45, M) of kilogram working medium3Decompression expansion process 56, M of kilogram working medium3Heat release and temperature reduction process 67, M of kilogram working medium1Decompression expansion process 78, M with kilogram working medium1Kilogram working medium exothermal condensation process 81-total 12 processes.
(2) From the energy conversion perspective:
① endothermic Process-M1Kilogram working medium inletThe endotherm of the line 2b process is derived from the combined heat release of M kilograms of superheated steam, (M)1+ M) kg of working medium for process b5 and (M)2M) kg of working medium, the heat absorption of the high-temperature section of which is generally provided by an external heat source, and the heat absorption of the low-temperature section of which is provided by the external heat source or by M3The kilogram of working medium is provided by heat release (back heating) of 67 processes, or by both.
② exothermic Process-M3The kilogram working medium is used for heat release in the 67 process, so that corresponding heat requirements can be met, or part or most of heat absorption requirements for other processes of combined cycle can be met, and useless parts are released to a low-temperature heat source (such as environment); 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 is generally completed by a circulating pump, M2Boosting processes 7a and (M) with kilograms of working substance2M) boosting of working fluid A3 by a compressor in general2-M) decompression expansion process 45, M of kilogram working medium3Decompression expansion process 56 and M of kilogram working medium1The kilogram working medium decompression expansion process 78 is generally completed by an expansion machine; 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, M1Mixing heat absorption temperature rise process 2b of kilogram working medium and M kilogram working medium, (M)1+ M) kilogram working medium endothermic heating, vaporization and superheating process b3 (M)1+ M) kilogram working medium depressurization over-expansion process 37, 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, M378, M kilogram working medium heat release and temperature reduction process1Decompression expansion process 89, M with kilogram working medium1And the kilogram working medium releases heat and is condensed 91-13 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) one kilogram of working medium is subjected to a 45-process, the heat absorption of the high-temperature section of which is generally provided by an external heat source; the heat absorption of the low-temperature section is performed by an external heat source or (M)2-M) 67 processes per kilogram of working medium and M3The kilogram of working medium is provided by the combined heat release (recuperation) of the 78 processes, or by both.
② exothermic Process- (M)2M) exothermic heat of 67 processes per kilogram of working fluid and M3Heat release in the 78 process is carried out by kilogram working media, corresponding heat requirements can be met, or part or most of heat absorption requirements for other processes of combined cycle can be met, and useless parts are released to a low-temperature heat source (such as environment); 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 is generally completed by a circulating pump, M2Boosting process 8a and (M) of kilogram working medium2M) boosting of working fluid A4 by a compressor in general1+ M) decompression of working medium kg 37, (M)2M) depressurization of working substances 56 and M1The kilogram working medium decompression expansion process 89 is generally completed by an expansion machine; 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 andm kilogram working medium mixing 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) kilogram working medium heat release cooling process 47, 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 Process 67, M378, M kilogram working medium heat release and temperature reduction process1Decompression expansion process 89, M with kilogram working medium1And the kilogram working medium releases heat and is condensed 91-13 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) one kilogram of working medium is subjected to a 56-process, the heat absorption of the high-temperature section of which is generally provided by an external heat source; the heat absorption of the low-temperature section is performed by an external heat source or (M)1+ M) kilogram working medium 47 process and M3The kilogram of working medium is provided by the combined heat release (recuperation) of the 78 processes, or by both.
② exothermic Process- (M)1+ M) exothermic reaction of 47 kg working fluid and M3Heat release in the 78 process is carried out by kilogram working media, corresponding heat requirements can be met, or part or most of heat absorption requirements for other processes of combined cycle can be met, and useless parts are released to a low-temperature heat source (such as environment); 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 is generally completed by a circulating pump, M2Boosting process 8a and (M) of kilogram working medium2M) boosting of working fluid A5 by a compressor in general1+ M) decompression of working medium 34 (M)2-M) depressurization of kg of working fluid 67 and M1Decompression expansion process 89 of kilogram working mediumIs generally completed 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, M1Mixing heat absorption temperature rise process 2b of kilogram working medium and M kilogram working medium, (M)1+ M) kilogram working medium absorbs heat to raise temperature, vaporize and overheat process b3, 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 medium2M) kilogram working medium pressure and temperature rising process a3, M334 kilogram working medium heat absorption and temperature rise process, 47X kilogram working medium pressure reduction and expansion process, (M)3-X) kilogram working medium endothermic heating process 45, (M)3-X) kilogram working medium depressurization expansion Process 56, (M)3-X) kg working medium exothermic cooling process 67, M378, M kilogram working medium heat release and temperature reduction process1Decompression expansion process 89, M with kilogram working medium1And the kilogram working medium releases heat and is condensed 91, namely 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 working medium for b3 process, M334 kg of working medium and (M)3-X) kg is processed 45 times, the heat absorption of the high temperature section is generally provided by an external heat source; the heat absorption of the low-temperature section is performed by an external heat source or (M)3-X) 67 processes and M are carried out with kg of working medium3The kilogram of working medium is provided by the combined heat release (recuperation) of the 78 processes, or by both.
② exothermic Process- (M)3X) Heat Release from 67 Processes with kg of working Medium and M3The kilogram working medium carries out heat release in the 78 process, can provide corresponding heat requirements for the outside, or partially or mostly uses heat absorption requirements for other processes of the combined cycle, and the useless part releases heat to a low-temperature heat source (such as the environment)Placing; 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 is generally completed by a circulating pump, M2Boosting process 8a and (M) of kilogram working medium2M) pressure increase of kg of working medium a3 is generally effected by a compressor, and pressure reduction of X kg of working medium 47, (M)3X) depressurization of working substances 56 and M1The kilogram working medium decompression expansion process 89 is generally completed by an expansion machine; 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 process is reduced, and a theoretical basis is provided for reducing equipment investment.
(6) In the high-temperature zone or the variable-temperature zone, the circulating medium and the heat source medium are in the variable-temperature process, so that the temperature difference heat transfer loss in the heat absorption link is reduced, and the heat efficiency is improved.
(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 and M2Eight processes-M-carried out separately or together with one kilogram of working medium1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium2Kilogram working medium boosting process 63, M334, M kilogram working medium heat absorption process345, M kilogram working medium depressurization process3Heat release process 56, M of kilogram working medium1Decompression process with kilogram working medium 67, M1Kilogram working medium heat release condensation process 71-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
2. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilogram, nine processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process of working medium kilogram 35, M2Step-up process 74, M with kilogram working medium245, M kilogram working medium heat absorption process3Decompression process 56, M of kilogram working medium3Heat release process 67, M per kilogram of working medium1Decompression process 78, M with kilogram working medium1Kilogram working medium heat release condensation process 81-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
3. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilogram, nine processes carried out separately or together-M1Step-up process of working medium kilogram 12, M125, M kilogram working medium heat absorption vaporization process2Kilogram working medium boosting process 73, M234, M kilogram working medium heat absorption process245, M kilogram working medium depressurization process3Kilogram workerMass blood pressure reduction process 56, M3Heat release process 67, M per kilogram of working medium1Decompression process 78, M with kilogram working medium1Kilogram working medium heat release condensation process 81-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
4. Single working medium steam combined cycle, is formed from M1Kilogram and M2Ten processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process of kilogram working medium 37, M2Boosting process 84, M with kilogram working medium245, M kilogram working medium heat absorption process2Decompression process 56, M of kilogram working medium2Heat release process 67, M per kilogram of working medium378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
5. Single working medium steam combined cycle, is formed from M1Kilogram and M2Ten processes carried out separately or together-M1Step-up process of working medium kilogram 12, M1Heat absorption and vaporization process 23, M of kilogram working medium1Decompression process 34, M of kilogram working medium147, M working medium kilogram heat release process2Boosting process of 85, M for kilogram working medium256, M kilogram working medium heat absorption process2Decompression process with kilogram working medium 67, M378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
6. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilograms of composition, eleven processes carried out individually or jointly or partially-M1Step-up process of working medium kilogram 12, M1Kilogram working mediumEndothermic vaporization process 23, M2Kilogram working medium pressure rising process 83, M334 kilogram working medium heat absorption process, 47X kilogram working medium pressure reduction process, (M)3-X) kilogram working substance endothermic Process 45, (M)3-X) decompression Process 56 with kg of working substance, (M)3-X) kilogram working substance exothermic process 67, M378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
7. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilograms of composition, eleven processes carried out individually or jointly or partially-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, M2Kilogram working medium pressure increasing process 6a, M kilogram working medium heat releasing condensation process ab, (M)2M) kilogram working medium pressure rise process a3, M334, M kilogram working medium heat absorption process345, M kilogram working medium depressurization process3Heat release process 56, M of kilogram working medium1Decompression process with kilogram working medium 67, M1Kilogram working medium heat release condensation process 71-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
8. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilograms of composition, twelve processes carried out separately or together or in part-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) kilogram working medium depressurization process 35, 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) 45, M) Heat absorption Process of kilogram working Medium3Decompression process 56, M of kilogram working medium3Heat release process 67, M per kilogram of working medium1Decompression process 78, M with kilogram working medium1Kilogram working medium dischargeThermal condensation process 81-a compositional closed process; wherein M is3Is M1And M2And (4) summing.
9. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilograms of composition, twelve processes carried out separately or together or in part-M1Step-up process of working medium kilogram 12, M1Kilogram working medium heat absorption process 2b, (M)1+ M) kilogram working medium endothermic vaporization process b5, 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) depressurization of 45 kg of working medium, M3Decompression process 56, M of kilogram working medium3Heat release process 67, M per kilogram of working medium1Decompression process 78, M with kilogram working medium1Kilogram working medium heat release condensation process 81-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
10. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working substances in kilogram composition, thirteen processes carried out individually or jointly or in part-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) kilogram working medium depressurization 37, 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) one kilogram of working medium exothermic Process 67, M378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
11. Single working medium steam combined cycle, is formed from M1Kilogram and M2Composition of kilogramWorking medium of (1), thirteen processes carried out individually or jointly or in part-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) kilogram working medium depressurization 34, (M)1+ M) kilogram working medium exothermic process 47, M28a in kilogram working medium boosting process, ab in M kilogram working medium heat releasing condensation process, (M)2-M) kilogram working medium pressure rise processa5，(M2M) kilogram working medium endothermic Process 56, (M)2-M) depressurization of 67, M) kg of working medium378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
12. Single working medium steam combined cycle, is formed from M1Kilogram and M2Working medium composed of kilograms of composition, fourteen processes carried out separately or together or partially-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, M28a in kilogram working medium boosting process, ab in M kilogram working medium heat releasing condensation process, (M)2M) kilogram working medium pressure rise process a3, M334 kilogram working medium heat absorption process, 47X kilogram working medium pressure reduction process, (M)3-X) kilogram working substance endothermic Process 45, (M)3-X) decompression Process 56 with kg of working substance, (M)3-X) kilogram working substance exothermic process 67, M378, M, kilogram working medium heat release process1Decompression process 89, M with kilogram working medium1Kilogram working medium heat release condensation process 91-a closed process of composition; wherein M is3Is M1And M2And (4) summing.
CN202010330660.1A 2019-04-15 2020-04-10 Single working medium steam combined cycle Pending CN111636935A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2019103311024 2019-04-15
CN201910331102 2019-04-15

Publications (1)

Publication Number Publication Date
CN111636935A true CN111636935A (en) 2020-09-08

Family

ID=72327796

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010330660.1A Pending CN111636935A (en) 2019-04-15 2020-04-10 Single working medium steam combined cycle

Country Status (3)

Country Link
US (1) US20220213816A1 (en)
CN (1) CN111636935A (en)
WO (1) WO2020211472A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022213687A1 (en) * 2021-04-06 2022-10-13 李华玉 Bi-directional first-type single-working-medium combined cycle

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8616001B2 (en) * 2010-11-29 2013-12-31 Echogen Power Systems, Llc Driven starter pump and start sequence
US20120159924A1 (en) * 2010-12-23 2012-06-28 General Electric Company System and method for increasing efficiency and water recovery of a combined cycle power plant
JP5738110B2 (en) * 2011-07-20 2015-06-17 三菱重工業株式会社 Double pressure radial turbine system
CN102518489B (en) * 2012-01-06 2016-08-03 新奥科技发展有限公司 Electricity-generating method, the device generated electricity for gasified production of energy products and heat
CN104929704B (en) * 2014-05-28 2018-11-06 李华玉 Combined cycle energy supplying system
US10436075B2 (en) * 2015-01-05 2019-10-08 General Electric Company Multi-pressure organic Rankine cycle
CN105953473B (en) * 2015-04-13 2020-06-16 李华玉 Bidirectional thermodynamic cycle and second-class thermally-driven compression heat pump
CN205047261U (en) * 2015-10-26 2016-02-24 华北理工大学 Critical CO2 heat pump and rankine cycle's coupled system strides based on waste heat recovery
US10054011B2 (en) * 2015-11-30 2018-08-21 Kalex, Llc Power systems and methods configuring and using same
WO2018068431A1 (en) * 2016-10-12 2018-04-19 李华玉 Combined cycle steam power device having evaporation stages
RU2714018C1 (en) * 2016-10-12 2020-02-11 Хуаюй ЛИ Combined steam cycle of one working medium and steam power plant of combined cycle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022213687A1 (en) * 2021-04-06 2022-10-13 李华玉 Bi-directional first-type single-working-medium combined cycle

Also Published As

Publication number Publication date
WO2020211472A1 (en) 2020-10-22
US20220213816A1 (en) 2022-07-07

Similar Documents

Publication Publication Date Title
CN111636935A (en) Single working medium steam combined cycle
CN111608756A (en) Single working medium steam combined cycle
CN112344579A (en) Reverse single working medium steam combined cycle
CN111636936A (en) Single working medium steam combined cycle
CN111608757A (en) Single working medium steam combined cycle
CN111608758A (en) Single working medium steam combined cycle
CN111608754A (en) Single working medium steam combined cycle
WO2021042648A1 (en) Single working medium-vapor combined cycle
CN115263469A (en) Single working medium steam combined cycle
CN115263462A (en) Single working medium steam combined cycle
WO2021036152A1 (en) Single working medium steam combined cycle
CN111608755A (en) Single working medium steam combined cycle
WO2021042649A1 (en) Single working medium steam combined cycle
CN111561368A (en) Single working medium steam combined cycle
WO2020215816A1 (en) Single working medium-vapor combined cycle
WO2022001077A1 (en) Second-class single-working medium combined cycle
WO2021042647A1 (en) Single working medium steam combined cycle
CN113587475A (en) Combined cycle of single working medium of the second kind
WO2020248590A1 (en) Reverse single-working-media steam combined cycle
WO2022001076A1 (en) Second type of single working medium combined cycle
CN111561367A (en) Single working medium steam combined cycle
CN113623037A (en) Combined cycle of single working medium of the second kind
CN115478917A (en) Reverse single working medium steam combined cycle
CN115264981A (en) Reverse single working medium steam combined cycle
CN113587478A (en) Combined cycle of single working medium of the second kind

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination