WO2021047126A1 - Reverse single-working-medium steam combined cycle - Google Patents
Reverse single-working-medium steam combined cycle Download PDFInfo
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- WO2021047126A1 WO2021047126A1 PCT/CN2020/000213 CN2020000213W WO2021047126A1 WO 2021047126 A1 WO2021047126 A1 WO 2021047126A1 CN 2020000213 W CN2020000213 W CN 2020000213W WO 2021047126 A1 WO2021047126 A1 WO 2021047126A1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
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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
- 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
Definitions
- the invention belongs to the technical fields of thermodynamics, refrigeration and heat pumps.
- the main purpose of the present invention is to provide a reverse single working fluid steam combined cycle.
- the specific content of the invention is described as follows:
- Reverse single working fluid steam combined cycle refers to the nine processes that are composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid Mass pressure boosting process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 ) kg working fluid boosting process 45, (M 1 +M 2 ) kg working fluid heat release process 56 , M 2 kg working fluid depressurization process 63, M 1 kg working fluid boosting process 67, M 1 kg working fluid exothermic condensation process 78, M 1 kg working fluid depressurizing process 81-a closed process composed of.
- Reverse single working fluid steam combined cycle refers to twelve processes that are composed of M 1 kg and M 2 kg, which are carried out separately or jointly or partially-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid boosting process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid endothermic process 45, (M 1 +M 2 -X) Kilogram working fluid boost process 56, (M 1 +M 2 -X) kilogram working fluid heat release process 67, X kilogram working fluid boost process 47, (M 1 +M 2 ) kg working fluid heat release process 78, M 2 kg working fluid depressurization process 83, M 1 kg working fluid boosting process 89, M 1 kg working fluid exothermic condensation process 9c, M 1 kg working fluid depressurizing process c1-a closed process composed of.
- Reverse single working fluid steam combined cycle refers to eleven processes composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid endothermic vaporization process 12, M 1 kg Working fluid boosting process 23, (M 1 +M 2 ) kilogram working fluid endothermic process 34, (M 1 +M 2 ) kilogram working fluid boosting process 45, (M 1 +M 2 ) kilogram working fluid exothermic process 56, M 2 kg working fluid depressurization process 6a, M 2 kg working fluid endothermic process ab, M 2 kg working fluid depressurization process b3, M 1 kg working fluid boosting process 67, M 1 kg working fluid exothermic condensation Process 78, M 1 kg of working fluid depressurization process 81-a closed process of composition.
- Reverse single working fluid steam combined cycle refers to the 14 processes that are composed of M 1 kg and M 2 kg, which are carried out separately or jointly or partially-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid boosting process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid endothermic process 45, (M 1 +M 2 -X) Kilogram working fluid boost process 56, (M 1 +M 2 -X) kilogram working fluid heat release process 67, X kilogram working fluid boost process 47, (M 1 +M 2 ) kg working fluid heat release process 78, M 2 kg working fluid depressurization process 8a, M 2 kg working fluid endothermic process ab, M 2 kg working fluid depressurization process b3, M 1 kg working fluid boosting process 89, M 1 kg working fluid exothermic condensation process 9c, M 1 kg of working fluid depressurization process c1-the closed process of composition.
- Reverse single working fluid steam combined cycle refers to 13 processes that are composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid endothermic vaporization process 12, M 1 kg Working fluid boosting process 23, (M 1 +M 2 ) kilogram working fluid endothermic process 34, (M 1 +M 2 ) kilogram working fluid boosting process 45, (M 1 +M 2 ) kilogram working fluid exothermic process 56, (M 2 -M) kg working fluid pressure reduction process 6t, M 2 kg working fluid pressure reduction process t3, (M 1 +M) kg working fluid pressure increase process 67, (M 1 +M) kg working fluid release Thermal condensation process 7r, M kg working fluid depressurization process rs, M kg working fluid endothermic vaporization process st, M 1 kg working fluid exothermic process r8, M 1 kg working fluid depressurization process 81-a closed process composed of.
- Reverse single working fluid steam combined cycle refers to the sixteen processes that are composed of M 1 kg and M 2 kg, which are carried out separately or jointly or partially-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid boosting process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid endothermic process 45, (M 1 +M 2 -X) Kilogram working fluid boost process 56, (M 1 +M 2 -X) kilogram working fluid heat release process 67, X kilogram working fluid boost process 47, (M 1 +M 2 ) kg working fluid heat release process 78, ( M 2 -M) kg working fluid pressure reduction process 8t, M 2 kg working fluid pressure reduction process t3, (M 1 +M) kg working fluid pressure increase process 89, (M 1 +M) kg working fluid exothermic condensation process 9r, M kg working fluid depressurization process rs, M kg working fluid endothermic vaporization process st, M 1 kg working fluid exothermic process 9
- the reverse single-working-substance steam combined cycle refers to any reverse single-working-substance steam combined cycle described in items 1-6, in which "M 1 kg of working fluid boosting process 23" is changed to "M 1
- the pressure increase process of kilogram working fluid is 2z, and the heat absorption process of M 1 kilogram working fluid is z3", forming the corresponding reverse single working fluid steam combined cycle.
- Fig. 1/7 is an example diagram of the first principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
- Fig. 2/7 is an example diagram of the second principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
- Fig. 3/7 is an example diagram of the third principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
- Fig. 4/7 is an example diagram of the fourth principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
- Fig. 5/7 is an example diagram of the fifth principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
- Fig. 6/7 is an example diagram of the sixth principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
- Fig. 7/7 is an example diagram of the seventh principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
- Working medium M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid pressure rising process 23, (M 1 +M 2 ) kg working fluid endothermic heating process 34, (M 1 +M 2 ) Kilogram working fluid pressure rise process 45, (M 1 +M 2 ) kilogram working fluid heat release process 56, M 2 kilogram working fluid depressurization expansion process 63, M 1 kilogram working fluid pressure rise and temperature rise process 67, M 1 kg Working fluid exothermic cooling, liquefaction and condensate cooling process 78, M 1 kg working fluid condensate pressure reduction process 81-a total of 9 processes.
- M 1 kg of working fluid undergoes 12 processes to obtain low-temperature heat load, which is provided by the refrigerated medium or low-temperature heat source, and the superheated part is satisfied by the heat release (regeneration) of the low-temperature section of the condensate; (M 1 +M 2 )
- the endothermic heat of the 34 process in kilograms of working fluid can be partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of which are satisfied by regenerative heat.
- the working medium is carried out-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid pressure increasing process 23, (M 1 +M 2 ) kg working fluid endothermic heating process 34, (M 1 +M 2- X) Kilogram working fluid endothermic heating process 45, (M 1 +M 2 -X) kilogram working fluid boosting and heating process 56, (M 1 +M 2 -X) kilogram working fluid exothermic cooling process 67, X kilogram working fluid Pressure increasing process 47, (M 1 +M 2 ) kg working fluid exothermic cooling process 78, M 2 kg working fluid depressurizing expansion process 83, M 1 kg working fluid pressure increasing process 89, M 1 kg working fluid Exothermic cooling, liquefaction and condensate cooling process 9c, M 1 kg of working fluid condensate pressure reduction process c1-a total of 12 processes.
- M 1 kg of working fluid is used for 12 processes to obtain low temperature heat load, which is provided by the refrigerated medium or low temperature heat source;
- (M 1 +M 2 ) kg of working fluid is used for 34 processes of heat absorption.
- Working medium M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid pressure rising process 23, (M 1 +M 2 ) kg working fluid endothermic heating process 34, (M 1 +M 2 ) Pressure rising process of kilogram working fluid 45, (M 1 +M 2 ) kilogram working fluid exothermic cooling process 56, M 2 kilogram working fluid depressurizing expansion process 6a, M 2 kilogram working fluid endothermic heating up ab, M 2 kilogram working fluid mass down expansion process b3, M 1 kilogram booster working fluid heating process 67, M 1 kilogram cooling heat refrigerant, heat liquefaction and cooling process condensate 78, M 1 kilogram refrigerant condensate depressurization 81-- A total of 11 processes.
- M 1 kg of working fluid undergoes 12 processes to obtain low-temperature heat load, which is provided by the refrigerated medium or low-temperature heat source, and the superheated part is satisfied by the heat release (regeneration) of the low-temperature section of the condensate;
- M 1 +M 2 Kilogram of working fluid for 34 process endothermic, which can be partly used to obtain low temperature heat load and partly satisfied by regenerative heat, or all of which is satisfied by regenerative heat;
- M 2 kg of working fluid is used for ab process Heat absorption can be satisfied by heat recovery or by an external heat source.
- the working medium is carried out-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid pressure increasing process 23, (M 1 +M 2 ) kg working fluid endothermic heating process 34, (M 1 +M 2- X) Kilogram working fluid endothermic heating process 45, (M 1 +M 2 -X) kilogram working fluid boosting and heating process 56, (M 1 +M 2 -X) kilogram working fluid exothermic cooling process 67, X kilogram working fluid Pressure increasing process 47, (M 1 + M 2 ) kg working fluid exothermic cooling process 78, M 2 kg working fluid depressurizing expansion process 8a, M 2 kg working fluid endothermic heating up ab, M 2 kg working fluid decreasing Pressure expansion process b3, M 1 kg working fluid pressure rising process 89, M 1 kg working fluid exothermic cooling, liquefaction and condensate cooling process 9c, M 1 kg working fluid condensate pressure reduction process c1-total 14 A process.
- M 1 kg of working fluid undergoes 12 processes to obtain low-temperature heat load, which is provided by the refrigerated medium or low-temperature heat source, and its overheating section may be satisfied by heat recovery;
- M 1 +M 2 kg process for the working fluid 34 absorbs heat can be used to obtain low heat load portion partially met by the regenerator or recuperator is satisfied by all;
- M 1 + M 2 -X 45 kg was suction refrigerant process heat may be used to obtain low heat load portion partially met by the regenerator or recuperator is satisfied by all;
- Working medium M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid pressure rising process 23, (M 1 +M 2 ) kg working fluid endothermic heating process 34, (M 1 +M 2 ) Pressure increasing process of kilogram working fluid 45, (M 1 +M 2 ) kilogram working fluid exothermic cooling process 56, (M 2 -M) kilogram working fluid depressurizing expansion process 6t, M 2 kilogram working fluid pressure reducing expansion process t3 , (M 1 +M) Kilogram working fluid boosting and heating process 67, (M 1 +M) Kilogram working fluid exothermic cooling, liquefaction and condensate cooling process 7r, M kg working fluid pressure reducing process rs, M kg Working fluid endothermic, vaporization and overheating process st, M 1 kg working fluid condensate exothermic cooling process r8, M 1 kg working fluid condensate pressure reduction process 81-a total of 13 processes.
- M 1 kg of working fluid undergoes 12 processes to obtain low-temperature heat load, which is provided by the refrigerated medium or low-temperature heat source; (M 1 +M 2 ) kg of working fluid undergoes 34 processes to absorb heat, which can be Part of it is used to obtain low-temperature heat load and part of it is met by regenerative heat, or all is met by regenerative heat; the heat absorption of M kg working fluid in the st process is generally satisfied by regenerative heat.
- the quality progress 81 process can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is less than the pressure boosting work, and the insufficient part (net cycle power) is provided by the outside, forming a reverse single-working-substance steam combined cycle.
- the working medium is carried out-M 1 kg of working fluid endothermic vaporization process 12, M 1 kg of working fluid pressure rising process 23, (M 1 +M 2 ) kg of working fluid endothermic heating process 34, (M 1 +M 2- X) Kilogram working fluid endothermic heating process 45, (M 1 +M 2 -X) kilogram working fluid boosting and heating process 56, (M 1 +M 2 -X) kilogram working fluid exothermic cooling process 67, X kilogram working fluid Pressure increasing process 47, (M 1 +M 2 ) kg working fluid exothermic cooling process 78, (M 2 -M) kg working fluid depressurizing expansion process 8t, M 2 kg working fluid depressurizing expansion process t3, ( M 1 +M) Kilogram working fluid boosting and heating process 89, (M 1 +M) Kilogram working fluid exothermic cooling, liquefaction and condensate cooling process 9r, M kg working fluid pressure reduction process rs, M kg working fluid Endothermic, vaporization and superheating process st, M 1 kg
- M 1 kg of working fluid undergoes 12 processes to obtain low-temperature heat load, which is provided by the refrigerated medium or low-temperature heat source;
- M 1 +M 2 kg of working fluid undergoes 34 processes to absorb heat, which can be Part of it is used to obtain low temperature heat load and part of it is satisfied by regenerative heat, or all is satisfied by regenerative heat;
- M 1 +M 2 -X kilogram of working fluid undergoes 45 process heat absorption, which can be partly used to obtain low temperature heat load And part of it is satisfied by the regenerative heat, or the whole is satisfied by the regenerative heat; the heat absorption of the M kg working fluid in the st process can be satisfied by the regenerative heat.
- the rs process and the C1 process with M 1 kg of working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is less than the pressure boosting work, and the insufficient part (circulation net work) is provided by the outside to form a reverse single working fluid steam Combined cycle.
- the "M 1 kg working fluid boosting process 23" is changed to "M 1 kg working fluid boosting process 2z, M 1 kg Working fluid endothermic process z3"; that is, M 1 kg of working fluid boosting and heating process 23 is replaced by M 1 kg of working fluid boosting and heating process 2z, and M 1 kg of working fluid endothermic process z3 is added; M 1 kg
- the endothermic heat of the working fluid in the z3 process can be met by regenerative heat or provided by low-temperature heat resources, forming a reverse single working fluid steam combined cycle.
- a single working fluid is conducive to production and storage; reduces operating costs and improves the flexibility of cycle adjustment
- the working fluid has a wide application range, can well adapt to the energy supply demand, and the matching between the working fluid and the working parameters is flexible.
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Abstract
Disclosed is a reverse single-working-medium steam combined cycle, belonging to the technical field of thermodynamics, refrigeration and heat pumps. The reverse single-working-medium steam combined cycle refers to, on a working medium composed of M1 kg and M2 kg, a closed process composed of nine processes performed respectively or jointly, comprising: an M1 kg of working medium endothermic vaporization process 12, an M1 kg of working medium pressure boosting process 23, an (M1+M2) kg of working medium endothermic process 34, an (M1+M2) kg of working medium pressure boosting process 45, an (M1+M2) kg of working medium exothermic process 56, an M2 kg of working medium pressure reduction process 63, an M1 kg of working medium pressure boosting process 67, an M1 kg of working medium exothermic condensation process 78, and an M1 kg of working medium pressure reduction process 81.
Description
本发明属于热力学、制冷与热泵技术领域。The invention belongs to the technical fields of thermodynamics, refrigeration and heat pumps.
冷需求、热需求和动力需求，为人类生活与生产当中所常见；其中，利用机械能转换为热能是实现制冷和高效供热的重要方式。一般情况下，制冷时冷却介质的温度是变化的，制热时被加热介质的温度往往也是变化的；利用机械能制热时，很多时候被加热介质同时具有变温和高温双重特点，这使得采用单一热力循环理论实现制冷或供热时性能指数不合理；这些存在的问题是——性能指数不合理，供热参数不高，压缩比较高，工作压力太大。Cold demand, heat demand and power demand are common in human life and production; among them, the use of mechanical energy to convert heat energy is an important way to achieve cooling and efficient heating. Under normal circumstances, the temperature of the cooling medium changes during refrigeration, and the temperature of the heated medium often changes during heating. When using mechanical energy to heat, often the heated medium has the dual characteristics of variable temperature and high temperature at the same time, which makes the use of a single The thermal cycle theory realizes the unreasonable performance index for cooling or heating; these existing problems are-unreasonable performance index, low heating parameters, high compression ratio, and too much working pressure.
从基础理论看，长久以来存在重大不足：(1)采用逆向朗肯循环为理论基础的蒸汽压缩式制冷或热泵循环，放热主要依靠冷凝过程，导致放热时工质与被加热介质之间温差损失大；同时，冷凝液的降压过程损失较大或利用代价高；采用超临界工况时，压缩比较高，使得压缩机的制造代价大，安全性降低等。(2)采用逆向布雷顿循环为理论基础的气体压缩式制冷或热泵循环，要求压缩比较低，这限制了供热参数的提高；同时，低温过程是变温的，这使得制冷或制热时低温环节往往存在较大的温差损失，性能指数不理想。From the basic theory point of view, there have been major shortcomings for a long time: (1) The vapor compression refrigeration or heat pump cycle based on the reverse Rankine cycle is used. The heat release mainly depends on the condensation process, resulting in the heat release between the working fluid and the heated medium. The temperature difference loss is large; at the same time, the pressure reduction process of the condensate has a large loss or high utilization cost; when the supercritical working condition is adopted, the compression ratio is high, which makes the compressor expensive to manufacture and reduces safety. (2) The gas compression refrigeration or heat pump cycle based on the theory of the reverse Brayton cycle requires low compression, which limits the improvement of heating parameters; at the same time, the low temperature process is variable temperature, which makes the cooling or heating low temperature The link often has a large temperature difference loss, and the performance index is not ideal.
在热科学基础理论体系中，热力循环的创建及发展应用将对能源利用的飞跃起到重大作用，将积极推动社会进步和生产力发展；其中，逆向热力循环是机械能制冷或制热利用装置的理论基础，也是相关能源利用系统的核心。针对长久以来存在的问题，从简单、主动和高效地利用机械能进行制冷或制热的原则出发，力求为制冷或热泵装置的简单、主动和高效提供基本理论支撑，本发明提出了逆向单工质蒸汽联合循环。In the basic theoretical system of thermal science, the creation, development and application of thermal cycles will play a major role in the leap of energy utilization, and will actively promote social progress and productivity development; among them, reverse thermal cycle is the theory of mechanical energy cooling or heating utilization devices The foundation is also the core of the relevant energy utilization system. In view of the long-standing problems, starting from the principle of simple, active and efficient use of mechanical energy for cooling or heating, and striving to provide basic theoretical support for the simple, active and efficient cooling or heat pump device, the present invention proposes a reverse single working substance Steam combined cycle.
发明内容：Summary of the invention:
本发明主要目的是要提供逆向单工质蒸汽联合循环，具体发明内容分项阐述如下：The main purpose of the present invention is to provide a reverse single working fluid steam combined cycle. The specific content of the invention is described as follows:
1.逆向单工质蒸汽联合循环，是指由M
1千克和M
2千克组成的工质，分别或共同进行的九个过程——M
1千克工质吸热汽化过程12，M
1千克工质升压过程23，(M
1+M
2)千克工质吸热过程34，(M
1+M
2)千克工质升压过程45，(M
1+M
2)千克工质放热过程56，M
2千克工质降压过程63，M
1千克工质升压过程67，M
1千克工质放热冷凝过程78，M
1千克工质降压过程81——组成的闭合过程。
1. Reverse single working fluid steam combined cycle refers to the nine processes that are composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid Mass pressure boosting process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 ) kg working fluid boosting process 45, (M 1 +M 2 ) kg working fluid heat release process 56 , M 2 kg working fluid depressurization process 63, M 1 kg working fluid boosting process 67, M 1 kg working fluid exothermic condensation process 78, M 1 kg working fluid depressurizing process 81-a closed process composed of.
2.逆向单工质蒸汽联合循环，是指由M
1千克和M
2千克组成的工质，分别或共同或部分进行的十二个过程——M
1千克工质吸热汽化过程12，M
1千克工质升压过程23，(M
1+M
2)千克工质吸热过程34，(M
1+M
2-X)千克工质吸热过程45，(M
1+M
2-X)千克工质升压过程56，(M
1+M
2-X)千克工质放热过程67，X千克工质升压过程47，(M
1+M
2)千克工质放热过程78，M
2千克工质降压过程83，M
1千克工质升压过程89，M
1千克工质放热冷凝过程9c，M
1千克工质降压过程c1——组成的闭合过程。
2. Reverse single working fluid steam combined cycle refers to twelve processes that are composed of M 1 kg and M 2 kg, which are carried out separately or jointly or partially-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid boosting process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid endothermic process 45, (M 1 +M 2 -X) Kilogram working fluid boost process 56, (M 1 +M 2 -X) kilogram working fluid heat release process 67, X kilogram working fluid boost process 47, (M 1 +M 2 ) kg working fluid heat release process 78, M 2 kg working fluid depressurization process 83, M 1 kg working fluid boosting process 89, M 1 kg working fluid exothermic condensation process 9c, M 1 kg working fluid depressurizing process c1-a closed process composed of.
3.逆向单工质蒸汽联合循环，是指由M
1千克和M
2千克组成的工质，分别或共同进行的十一个过程——M
1千克工质吸热汽化过程12，M
1千克工质升压过程23，(M
1+M
2)千 克工质吸热过程34，(M
1+M
2)千克工质升压过程45，(M
1+M
2)千克工质放热过程56，M
2千克工质降压过程6a，M
2千克工质吸热过程ab，M
2千克工质降压过程b3，M
1千克工质升压过程67，M
1千克工质放热冷凝过程78，M
1千克工质降压过程81——组成的闭合过程。
3. Reverse single working fluid steam combined cycle refers to eleven processes composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid endothermic vaporization process 12, M 1 kg Working fluid boosting process 23, (M 1 +M 2 ) kilogram working fluid endothermic process 34, (M 1 +M 2 ) kilogram working fluid boosting process 45, (M 1 +M 2 ) kilogram working fluid exothermic process 56, M 2 kg working fluid depressurization process 6a, M 2 kg working fluid endothermic process ab, M 2 kg working fluid depressurization process b3, M 1 kg working fluid boosting process 67, M 1 kg working fluid exothermic condensation Process 78, M 1 kg of working fluid depressurization process 81-a closed process of composition.
4.逆向单工质蒸汽联合循环，是指由M
1千克和M
2千克组成的工质，分别或共同或部分进行的十四个过程——M
1千克工质吸热汽化过程12，M
1千克工质升压过程23，(M
1+M
2)千克工质吸热过程34，(M
1+M
2-X)千克工质吸热过程45，(M
1+M
2-X)千克工质升压过程56，(M
1+M
2-X)千克工质放热过程67，X千克工质升压过程47，(M
1+M
2)千克工质放热过程78，M
2千克工质降压过程8a，M
2千克工质吸热过程ab，M
2千克工质降压过程b3，M
1千克工质升压过程89，M
1千克工质放热冷凝过程9c，M
1千克工质降压过程c1——组成的闭合过程。
4. Reverse single working fluid steam combined cycle refers to the 14 processes that are composed of M 1 kg and M 2 kg, which are carried out separately or jointly or partially-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid boosting process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid endothermic process 45, (M 1 +M 2 -X) Kilogram working fluid boost process 56, (M 1 +M 2 -X) kilogram working fluid heat release process 67, X kilogram working fluid boost process 47, (M 1 +M 2 ) kg working fluid heat release process 78, M 2 kg working fluid depressurization process 8a, M 2 kg working fluid endothermic process ab, M 2 kg working fluid depressurization process b3, M 1 kg working fluid boosting process 89, M 1 kg working fluid exothermic condensation process 9c, M 1 kg of working fluid depressurization process c1-the closed process of composition.
5.逆向单工质蒸汽联合循环，是指由M
1千克和M
2千克组成的工质，分别或共同进行的十三个过程——M
1千克工质吸热汽化过程12，M
1千克工质升压过程23，(M
1+M
2)千克工质吸热过程34，(M
1+M
2)千克工质升压过程45，(M
1+M
2)千克工质放热过程56，(M
2-M)千克工质降压过程6t，M
2千克工质降压过程t3，(M
1+M)千克工质升压过程67，(M
1+M)千克工质放热冷凝过程7r，M千克工质降压过程rs，M千克工质吸热汽化过程st，M
1千克工质放热过程r8，M
1千克工质降压过程81——组成的闭合过程。
5. Reverse single working fluid steam combined cycle refers to 13 processes that are composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid endothermic vaporization process 12, M 1 kg Working fluid boosting process 23, (M 1 +M 2 ) kilogram working fluid endothermic process 34, (M 1 +M 2 ) kilogram working fluid boosting process 45, (M 1 +M 2 ) kilogram working fluid exothermic process 56, (M 2 -M) kg working fluid pressure reduction process 6t, M 2 kg working fluid pressure reduction process t3, (M 1 +M) kg working fluid pressure increase process 67, (M 1 +M) kg working fluid release Thermal condensation process 7r, M kg working fluid depressurization process rs, M kg working fluid endothermic vaporization process st, M 1 kg working fluid exothermic process r8, M 1 kg working fluid depressurization process 81-a closed process composed of.
6.逆向单工质蒸汽联合循环，是指由M
1千克和M
2千克组成的工质，分别或共同或部分进行的十六个过程——M
1千克工质吸热汽化过程12，M
1千克工质升压过程23，(M
1+M
2)千克工质吸热过程34，(M
1+M
2-X)千克工质吸热过程45，(M
1+M
2-X)千克工质升压过程56，(M
1+M
2-X)千克工质放热过程67，X千克工质升压过程47，(M
1+M
2)千克工质放热过程78，(M
2-M)千克工质降压过程8t，M
2千克工质降压过程t3，(M
1+M)千克工质升压过程89，(M
1+M)千克工质放热冷凝过程9r，M千克工质降压过程rs，M千克工质吸热汽化过程st，M
1千克工质放热过程rc，M
1千克工质降压过程c1——组成的闭合过程。
6. Reverse single working fluid steam combined cycle refers to the sixteen processes that are composed of M 1 kg and M 2 kg, which are carried out separately or jointly or partially-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid boosting process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid endothermic process 45, (M 1 +M 2 -X) Kilogram working fluid boost process 56, (M 1 +M 2 -X) kilogram working fluid heat release process 67, X kilogram working fluid boost process 47, (M 1 +M 2 ) kg working fluid heat release process 78, ( M 2 -M) kg working fluid pressure reduction process 8t, M 2 kg working fluid pressure reduction process t3, (M 1 +M) kg working fluid pressure increase process 89, (M 1 +M) kg working fluid exothermic condensation process 9r, M kg working fluid depressurization process rs, M kg working fluid endothermic vaporization process st, M 1 kg working fluid exothermic process rc, M 1 kg working fluid depressurization process c1-a closed process composed of.
7.逆向单工质蒸汽联合循环，是在第1-6项所述的任一逆向单工质蒸汽联合循环中，将其中的“M
1千克工质升压过程23”变更为“M
1千克工质升压过程2z，M
1千克工质吸热过程z3”，形成对应的逆向单工质蒸汽联合循环。
7. The reverse single-working-substance steam combined cycle refers to any reverse single-working-substance steam combined cycle described in items 1-6, in which "M 1 kg of working fluid boosting process 23" is changed to "M 1 The pressure increase process of kilogram working fluid is 2z, and the heat absorption process of M 1 kilogram working fluid is z3", forming the corresponding reverse single working fluid steam combined cycle.
图1/7是依据本发明所提供的逆向单工质蒸汽联合循环第1种原则性流程示例图。Fig. 1/7 is an example diagram of the first principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
图2/7是依据本发明所提供的逆向单工质蒸汽联合循环第2种原则性流程示例图。Fig. 2/7 is an example diagram of the second principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
图3/7是依据本发明所提供的逆向单工质蒸汽联合循环第3种原则性流程示例图。Fig. 3/7 is an example diagram of the third principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
图4/7是依据本发明所提供的逆向单工质蒸汽联合循环第4种原则性流程示例图。Fig. 4/7 is an example diagram of the fourth principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
图5/7是依据本发明所提供的逆向单工质蒸汽联合循环第5种原则性流程示例图。Fig. 5/7 is an example diagram of the fifth principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
图6/7是依据本发明所提供的逆向单工质蒸汽联合循环第6种原则性流程示例图。Fig. 6/7 is an example diagram of the sixth principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
图7/7是依据本发明所提供的逆向单工质蒸汽联合循环第7种原则性流程示例图。Fig. 7/7 is an example diagram of the seventh principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
首先要说明的是，在流程的表述上，非必要情况下不重复进行，对显而易见的流程不作表述；下面结合附图和实例详细描述本发明。First of all, it should be noted that in the description of the process, the process is not repeated unless necessary, and the obvious process is not described; the present invention will be described in detail below with reference to the accompanying drawings and examples.
图1/7所示T-s图中的逆向单工质蒸汽联合循环示例是这样进行的：The example of the reverse single working fluid steam combined cycle in the T-s diagram shown in Figure 1/7 is carried out as follows:
(1)从循环过程上看：(1) From the perspective of the cycle process:
工作介质进行——M
1千克工质吸热汽化过程12，M
1千克工质升压升温过程23，(M
1+M
2)千克工质吸热升温过程34，(M
1+M
2)千克工质升压升温过程45，(M
1+M
2)千克工质放热降温过程56，M
2千克工质降压膨胀过程63，M
1千克工质升压升温过程67，M
1千克工质放热降温、液化和冷凝液放热降温过程78，M
1千克工质冷凝液降压过程81——共9个过程。
Working medium: M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid pressure rising process 23, (M 1 +M 2 ) kg working fluid endothermic heating process 34, (M 1 +M 2 ) Kilogram working fluid pressure rise process 45, (M 1 +M 2 ) kilogram working fluid heat release process 56, M 2 kilogram working fluid depressurization expansion process 63, M 1 kilogram working fluid pressure rise and temperature rise process 67, M 1 kg Working fluid exothermic cooling, liquefaction and condensate cooling process 78, M 1 kg working fluid condensate pressure reduction process 81-a total of 9 processes.
(2)从能量转换上看：(2) From the perspective of energy conversion:
①放热过程——(M
1+M
2)千克工质进行56过程的放热，以及M
1千克工质进行78过程的放热，其高温部分一般用于被加热介质，低温部分一般用于(M
1+M
2)千克工质进行34过程的热需求。
①Exothermic process-(M 1 + M 2 ) kilogram of working fluid carries out the heat release of 56 process, and M 1 kilogram of working fluid carries out the heat release of 78 process, the high temperature part is generally used for the heated medium, and the low temperature part is generally used The heat demand for 34 processes is performed on (M 1 +M 2) kilograms of working fluid.
②吸热过程——一般地，M
1千克工质进行12过程获取低温热负荷，由被制冷介质或低温热源来提供，其过热部分或由冷凝液低温段放热(回热)来满足；(M
1+M
2)千克工质进行34过程的吸热，可部分用于获取低温热负荷而部分由回热来满足，或者全部由回热来满足。
② Endothermic process-Generally, M 1 kg of working fluid undergoes 12 processes to obtain low-temperature heat load, which is provided by the refrigerated medium or low-temperature heat source, and the superheated part is satisfied by the heat release (regeneration) of the low-temperature section of the condensate; (M 1 +M 2 ) The endothermic heat of the 34 process in kilograms of working fluid can be partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of which are satisfied by regenerative heat.
③能量转换过程——M
1千克工质进行23、67两过程和(M
1+M
2)千克工质进行45过程，一般由压缩机来完成，需要机械能；M
2千克工质进行63过程由膨胀机来完成并提供机械能，M
1千克工质进行81过程可由涡轮机或节流阀来完成；降压膨胀作功小于升压耗功，不足部分(循环净功)由外部提供，形成逆向单工质蒸汽联合循环。
③Energy conversion process-M 1 kg of working fluid for 23, 67 two processes and (M 1 + M 2 ) kg of working fluid for 45 processes, which are generally completed by a compressor and require mechanical energy; M 2 kg of working fluid for 63 processes It is completed by the expander and provides mechanical energy. The process of M 1 kg of working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is less than the pressure boosting work, and the insufficient part (circulation net work) is provided by the outside, forming a reverse Single working substance steam combined cycle.
图2/7所示T-s图中的逆向单工质蒸汽联合循环示例是这样进行的：The example of the reverse single working fluid steam combined cycle in the T-s diagram shown in Figure 2/7 is performed as follows:
(1)从循环过程上看：(1) From the perspective of the cycle process:
工作介质进行——M
1千克工质吸热汽化过程12，M
1千克工质升压升温过程23，(M
1+M
2)千克工质吸热升温过程34，(M
1+M
2-X)千克工质吸热升温过程45，(M
1+M
2-X)千克工质升压升温过程56，(M
1+M
2-X)千克工质放热降温过程67，X千克工质升压升温过程47，(M
1+M
2)千克工质放热降温过程78，M
2千克工质降压膨胀过程83，M
1千克工质升压升温过程89，M
1千克工质放热降温、液化和冷凝液放热降温过程9c，M
1千克工质冷凝液降压过程c1——共12个过程。
The working medium is carried out-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid pressure increasing process 23, (M 1 +M 2 ) kg working fluid endothermic heating process 34, (M 1 +M 2- X) Kilogram working fluid endothermic heating process 45, (M 1 +M 2 -X) kilogram working fluid boosting and heating process 56, (M 1 +M 2 -X) kilogram working fluid exothermic cooling process 67, X kilogram working fluid Pressure increasing process 47, (M 1 +M 2 ) kg working fluid exothermic cooling process 78, M 2 kg working fluid depressurizing expansion process 83, M 1 kg working fluid pressure increasing process 89, M 1 kg working fluid Exothermic cooling, liquefaction and condensate cooling process 9c, M 1 kg of working fluid condensate pressure reduction process c1-a total of 12 processes.
(2)从能量转换上看：(2) From the perspective of energy conversion:
①放热过程——(M
1+M
2-X)千克工质进行67过程的放热，(M
1+M
2)千克工质进行78过程的放热，以及M
1千克工质9c过程的放热，其高温部分一般用于被加热介质，低温部分一般用于(M
1+M
2)千克工质进行34过程和(M
1+M
2-X)千克工质进行45过程的热需求。
①Exothermic process-(M 1 +M 2 -X) kilogram of working fluid carries out the heat release of 67 process, (M 1 +M 2 ) kilogram of working fluid carries out the heat release of 78 process, and M 1 kilogram of working fluid 9c process The high temperature part is generally used for the heated medium, and the low temperature part is generally used for (M 1 +M 2 ) kg of working fluid for 34 processes and (M 1 +M 2 -X) kg of working fluid for 45 processes. demand.
②吸热过程——一般地，M
1千克工质进行12过程获取低温热负荷，由被制冷介质或低温热源来提供；(M
1+M
2)千克工质进行34过程的吸热，可用于获取低温热负荷，或者部分用于获取低温热负荷而部分由回热来满足或全部由回热来满足；(M
1+M
2-X)千克工 质进行45过程的吸热，可部分用于获取低温热负荷而部分由回热来满足，或者全部由回热来满足。
② Heat absorption process-Generally, M 1 kg of working fluid is used for 12 processes to obtain low temperature heat load, which is provided by the refrigerated medium or low temperature heat source; (M 1 +M 2 ) kg of working fluid is used for 34 processes of heat absorption. To obtain low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heating; (M 1 + M 2 -X) kilogram of working fluid for 45 process heat absorption, which can be partly satisfied by regenerative heating; It is used to obtain low-temperature heat load and is partly satisfied by regenerative heating, or fully satisfied by regenerative heating.
③能量转换过程——M
1千克工质进行23、89两过程，以及(M
1+M
2-X)千克工质进行56过程和X千克工质进行47过程，一般由压缩机来完成，需要机械能；M
2千克工质进行83过程由膨胀机来完成并提供机械能，M
1千克工质进行c1过程可由涡轮机或节流阀来完成；降压膨胀作功小于升压耗功，不足部分(循环净功)由外部提供，形成逆向单工质蒸汽联合循环。
③Energy conversion process-M 1 kilogram of working fluid for 23 and 89 two processes, and (M 1 +M 2 -X) kilogram of working fluid for 56 process and X kilogram of working fluid for 47 processes, which are generally completed by compressors. Mechanical energy is required; the 83 process of M 2 kg of working fluid is completed by the expander and the mechanical energy is provided, and the C1 process of the M 1 kg of working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is less than the pressure boosting work, and the insufficient part (Cycle net power) is provided by the outside to form a reverse single working substance steam combined cycle.
图3/7所示T-s图中的逆向单工质蒸汽联合循环示例是这样进行的：The example of the reverse single working fluid steam combined cycle in the T-s diagram shown in Fig. 3/7 is as follows:
(1)从循环过程上看：(1) From the perspective of the cycle process:
工作介质进行——M
1千克工质吸热汽化过程12，M
1千克工质升压升温过程23，(M
1+M
2)千克工质吸热升温过程34，(M
1+M
2)千克工质升压升温过程45，(M
1+M
2)千克工质放热降温过程56，M
2千克工质降压膨胀过程6a，M
2千克工质吸热升温ab，M
2千克工质降压膨胀过程b3，M
1千克工质升压升温过程67，M
1千克工质放热降温、液化和冷凝液放热降温过程78，M
1千克工质冷凝液降压过程81——共11个过程。
Working medium: M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid pressure rising process 23, (M 1 +M 2 ) kg working fluid endothermic heating process 34, (M 1 +M 2 ) Pressure rising process of kilogram working fluid 45, (M 1 +M 2 ) kilogram working fluid exothermic cooling process 56, M 2 kilogram working fluid depressurizing expansion process 6a, M 2 kilogram working fluid endothermic heating up ab, M 2 kilogram working fluid mass down expansion process b3, M 1 kilogram booster working fluid heating process 67, M 1 kilogram cooling heat refrigerant, heat liquefaction and cooling process condensate 78, M 1 kilogram refrigerant condensate depressurization 81-- A total of 11 processes.
(2)从能量转换上看：(2) From the perspective of energy conversion:
①放热过程——一般地，(M
1+M
2)千克工质进行56过程的放热，以及M
1千克工质进行78过程的放热，其高温部分一般用于被加热介质，低温部分一般用于M
2千克工质进行ab过程和(M
1+M
2)千克工质进行34过程的热需求。
①Exothermic process——Generally, (M 1 +M 2 ) kilogram of working fluid carries out the heat release of 56 process, and M 1 kilogram of working fluid carries out the heat release of 78 process. The high temperature part is generally used for the heated medium, and the low temperature Part of it is generally used for the heat demand of M 2 kg working fluid for the ab process and (M 1 +M 2 ) kg working fluid for the 34 process.
②吸热过程——一般地，M
1千克工质进行12过程获取低温热负荷，由被制冷介质或低温热源来提供，其过热部分或由冷凝液低温段放热(回热)来满足；(M
1+M
2)千克工质进行34过程的吸热，可部分用于获取低温热负荷而部分由回热来满足，或者全部由回热来满足；M
2千克工质进行ab过程的吸热，可由回热来满足，或者由外部热源来满足。
② Endothermic process-Generally, M 1 kg of working fluid undergoes 12 processes to obtain low-temperature heat load, which is provided by the refrigerated medium or low-temperature heat source, and the superheated part is satisfied by the heat release (regeneration) of the low-temperature section of the condensate; (M 1 +M 2 ) Kilogram of working fluid for 34 process endothermic, which can be partly used to obtain low temperature heat load and partly satisfied by regenerative heat, or all of which is satisfied by regenerative heat; M 2 kg of working fluid is used for ab process Heat absorption can be satisfied by heat recovery or by an external heat source.
③能量转换过程——M
1千克工质进行23、67两过程，以及(M
1+M
2)千克工质进行45过程，一般由压缩机来完成，需要机械能；M
2千克工质进行6a、b3两过程由膨胀机来完成并提供机械能，M
1千克工质进行81过程可由涡轮机或节流阀来完成；降压膨胀作功小于升压耗功，不足部分(循环净功)由外部提供，形成逆向单工质蒸汽联合循环。
③Energy conversion process-M 1 kg of working fluid for 23 and 67 two processes, and (M 1 + M 2 ) kg of working fluid for 45 processes, which are usually completed by a compressor and require mechanical energy; M 2 kg of working fluid for 6a The two processes of b3 and b3 are completed by the expander and provide mechanical energy. The 81 process of M 1 kg of working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is less than the pressure boosting work, and the insufficient part (net cycle power) is from the outside Provided to form a reverse single working substance steam combined cycle.
图4/7所示T-s图中的逆向单工质蒸汽联合循环示例是这样进行的：The example of the reverse single working fluid steam combined cycle in the T-s diagram shown in Fig. 4/7 is as follows:
(1)从循环过程上看：(1) From the perspective of the cycle process:
工作介质进行——M
1千克工质吸热汽化过程12，M
1千克工质升压升温过程23，(M
1+M
2)千克工质吸热升温过程34，(M
1+M
2-X)千克工质吸热升温过程45，(M
1+M
2-X)千克工质升压升温过程56，(M
1+M
2-X)千克工质放热降温过程67，X千克工质升压升温过程47，(M
1+M
2)千克工质放热降温过程78，M
2千克工质降压膨胀过程8a，M
2千克工质吸热升温ab，M
2千克工质降压膨胀过程b3，M
1千克工质升压升温过程89，M
1千克工质放热降温、液化和冷凝液放热降温过程9c，M
1千克工质冷凝液降压过程c1——共14个过程。
The working medium is carried out-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid pressure increasing process 23, (M 1 +M 2 ) kg working fluid endothermic heating process 34, (M 1 +M 2- X) Kilogram working fluid endothermic heating process 45, (M 1 +M 2 -X) kilogram working fluid boosting and heating process 56, (M 1 +M 2 -X) kilogram working fluid exothermic cooling process 67, X kilogram working fluid Pressure increasing process 47, (M 1 + M 2 ) kg working fluid exothermic cooling process 78, M 2 kg working fluid depressurizing expansion process 8a, M 2 kg working fluid endothermic heating up ab, M 2 kg working fluid decreasing Pressure expansion process b3, M 1 kg working fluid pressure rising process 89, M 1 kg working fluid exothermic cooling, liquefaction and condensate cooling process 9c, M 1 kg working fluid condensate pressure reduction process c1-total 14 A process.
(2)从能量转换上看：(2) From the perspective of energy conversion:
①放热过程——(M
1+M
2-X)千克工质进行67过程的放热，(M
1+M
2)千克工质进行78过程的放热，以及M
1千克工质进行9c过程的放热，其高温部分一般用于被加热介质， 低温部分一般用于(M
1+M
2)千克工质进行34过程、(M
1+M
2-X)千克工质进行45过程和M
2千克工质进行ab过程的热需求；其中，M
1千克工质进行9c过程的低温段放热，可用于M
1千克工质12过程的过热需求。
①Exothermic process——(M 1 +M 2 -X) kilogram of working fluid carries out the heat release of 67 process, (M 1 +M 2 ) kilogram of working fluid carries out the heat release of 78 process, and M 1 kilogram of working fluid carries out 9c The heat release of the process, the high temperature part is generally used for the heated medium, the low temperature part is generally used for (M 1 + M 2 ) kilogram of working fluid for 34 processes, (M 1 + M 2 -X) kilogram of working fluid for 45 processes and The heat demand of the M 2 kg working fluid for the ab process; among them, the M 1 kg working fluid carries out the heat release in the low temperature section of the 9c process, which can be used for the overheating demand of the M 1 kg working fluid 12 process.
②吸热过程——一般地，M
1千克工质进行12过程获取低温热负荷，由被制冷介质或低温热源来提供，其过热段或由回热来满足；(M
1+M
2)千克工质进行34过程的吸热，可部分用于获取低温热负荷而部分由回热来满足，或者全部由回热来满足；(M
1+M
2-X)千克工质进行45过程的吸热，可部分用于获取低温热负荷而部分由回热来满足，或者全部由回热来满足；M
2千克工质进行ab过程的吸热，可由回热来满足，或者由外部热源来满足。
② Endothermic process-Generally, M 1 kg of working fluid undergoes 12 processes to obtain low-temperature heat load, which is provided by the refrigerated medium or low-temperature heat source, and its overheating section may be satisfied by heat recovery; (M 1 +M 2 ) kg process for the working fluid 34 absorbs heat can be used to obtain low heat load portion partially met by the regenerator or recuperator is satisfied by all; (M 1 + M 2 -X ) 45 kg was suction refrigerant process heat may be used to obtain low heat load portion partially met by the regenerator or recuperator is satisfied by all; M 2 kilogram refrigerant ab endothermic process, the regenerator may be met by an external heat source or satisfy .
③能量转换过程——M
1千克工质进行23、89两过程，以及(M
1+M
2-X)千克工质进行56过程和X千克工质进行47过程，一般由压缩机来完成，需要机械能；M
2千克工质进行8a、b3过程由膨胀机来完成并提供机械能，M
1千克工质进行c1过程可由涡轮机或节流阀来完成；降压膨胀作功小于升压耗功，不足部分(循环净功)由外部提供，形成逆向单工质蒸汽联合循环。
③Energy conversion process-M 1 kilogram of working fluid for 23 and 89 two processes, and (M 1 +M 2 -X) kilogram of working fluid for 56 process and X kilogram of working fluid for 47 processes, which are generally completed by compressors. Mechanical energy is required; the process 8a and b3 of M 2 kg of working fluid is completed by the expander and the mechanical energy is provided, and the process c1 of M 1 kg of working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is less than the pressure boosting work, The insufficient part (the net power of the cycle) is provided by the outside, forming a reverse single-working-substance steam combined cycle.
图5/7所示T-s图中的逆向单工质蒸汽联合循环示例是这样进行的：The example of the reverse single working fluid steam combined cycle in the T-s diagram shown in Fig. 5/7 is as follows:
(1)从循环过程上看：(1) From the perspective of the cycle process:
工作介质进行——M
1千克工质吸热汽化过程12，M
1千克工质升压升温过程23，(M
1+M
2)千克工质吸热升温过程34，(M
1+M
2)千克工质升压升温过程45，(M
1+M
2)千克工质放热降温过程56，(M
2-M)千克工质降压膨胀过程6t，M
2千克工质降压膨胀过程t3，(M
1+M)千克工质升压升温过程67，(M
1+M)千克工质放热降温、液化和冷凝液放热降温过程7r，M千克工质降压过程rs，M千克工质吸热、汽化和过热过程st，M
1千克工质冷凝液放热降温过程r8，M
1千克工质冷凝液降压过程81——共13个过程。
Working medium: M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid pressure rising process 23, (M 1 +M 2 ) kg working fluid endothermic heating process 34, (M 1 +M 2 ) Pressure increasing process of kilogram working fluid 45, (M 1 +M 2 ) kilogram working fluid exothermic cooling process 56, (M 2 -M) kilogram working fluid depressurizing expansion process 6t, M 2 kilogram working fluid pressure reducing expansion process t3 , (M 1 +M) Kilogram working fluid boosting and heating process 67, (M 1 +M) Kilogram working fluid exothermic cooling, liquefaction and condensate cooling process 7r, M kg working fluid pressure reducing process rs, M kg Working fluid endothermic, vaporization and overheating process st, M 1 kg working fluid condensate exothermic cooling process r8, M 1 kg working fluid condensate pressure reduction process 81-a total of 13 processes.
(2)从能量转换上看：(2) From the perspective of energy conversion:
①放热过程——一般地，(M
1+M
2)千克工质进行56过程的放热，(M
1+M)千克工质进行7r过程的放热，其高温部分一般用于被加热介质，低温部分一般用于(M
1+M
2)千克工质进行34过程和M千克工质进行st过程的热需求；M
1千克工质冷凝液进行r8过程的放热，一般用于(M
1+M
2)千克工质进行34过程低温段的加热。
①Exothermic process——Generally, (M 1 +M 2 ) kilogram of working fluid carries out the heat release of 56 process, (M 1 +M) kilogram of working fluid carries out the heat release of 7r process, and the high temperature part is generally used for heating Medium, the low temperature part is generally used for the heat demand of (M 1 +M 2 ) kg of working fluid for 34 process and M kg of working fluid for st process; M 1 kg of working fluid condensate for heat release of r8 process, generally used for ( M 1 +M 2 ) kilograms of working fluid is heated in the low temperature section of the 34 process.
②吸热过程——一般地，M
1千克工质进行12过程获取低温热负荷，由被制冷介质或低温热源来提供；(M
1+M
2)千克工质进行34过程的吸热，可部分用于获取低温热负荷而部分由回热来满足，或者全部由回热来满足；M千克工质进行st过程的吸热，一般由回热来满足。
② Endothermic process-Generally, M 1 kg of working fluid undergoes 12 processes to obtain low-temperature heat load, which is provided by the refrigerated medium or low-temperature heat source; (M 1 +M 2 ) kg of working fluid undergoes 34 processes to absorb heat, which can be Part of it is used to obtain low-temperature heat load and part of it is met by regenerative heat, or all is met by regenerative heat; the heat absorption of M kg working fluid in the st process is generally satisfied by regenerative heat.
③能量转换过程——M
1千克工质进行23过程，(M
1+M
2)千克工质进行45过程，以及(M
1+M)千克工质进行67过程，—般由压缩机来完成，需要机械能；(M
2-M)千克工质降压膨胀过程6t和M
2千克工质降压膨胀过程t3由膨胀机来完成并提供机械能，M千克工质进行rs过程和M
1千克工质进行81过程可由涡轮机或节流阀来完成；降压膨胀作功小于升压耗功，不足部分(循环净功)由外部提供，形成逆向单工质蒸汽联合循环。
③Energy conversion process-M 1 kilogram of working fluid for 23 processes, (M 1 +M 2 ) kilogram of working fluid for 45 processes, and (M 1 +M) kilograms of working fluid for 67 processes, generally completed by the compressor , Requires mechanical energy; (M 2 -M) the pressure-reducing expansion process of the kilogram working fluid 6t and the pressure-reducing expansion process t3 of the M 2 kilogram working fluid are completed by the expander and provide mechanical energy. The M kilogram working fluid is used for the rs process and the M 1 kilogram working fluid. The quality progress 81 process can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is less than the pressure boosting work, and the insufficient part (net cycle power) is provided by the outside, forming a reverse single-working-substance steam combined cycle.
图6/7所示T-s图中的逆向单工质蒸汽联合循环示例是这样进行的：The example of the reverse single working fluid steam combined cycle in the T-s diagram shown in Fig. 6/7 is as follows:
(1)从循环过程上看：(1) From the perspective of the cycle process:
工作介质进行——M
1千克工质吸热汽化过程12，M
1千克工质升压升温过程23， (M
1+M
2)千克工质吸热升温过程34，(M
1+M
2-X)千克工质吸热升温过程45，(M
1+M
2-X)千克工质升压升温过程56，(M
1+M
2-X)千克工质放热降温过程67，X千克工质升压升温过程47，(M
1+M
2)千克工质放热降温过程78，(M
2-M)千克工质降压膨胀过程8t，M
2千克工质降压膨胀过程t3，(M
1+M)千克工质升压升温过程89，(M
1+M)千克工质放热降温、液化和冷凝液放热降温过程9r，M千克工质降压过程rs，M千克工质吸热、汽化和过热过程st，M
1千克工质冷凝液放热降温过程rc，M
1千克工质冷凝液降压过程c1——共16个过程。
The working medium is carried out-M 1 kg of working fluid endothermic vaporization process 12, M 1 kg of working fluid pressure rising process 23, (M 1 +M 2 ) kg of working fluid endothermic heating process 34, (M 1 +M 2- X) Kilogram working fluid endothermic heating process 45, (M 1 +M 2 -X) kilogram working fluid boosting and heating process 56, (M 1 +M 2 -X) kilogram working fluid exothermic cooling process 67, X kilogram working fluid Pressure increasing process 47, (M 1 +M 2 ) kg working fluid exothermic cooling process 78, (M 2 -M) kg working fluid depressurizing expansion process 8t, M 2 kg working fluid depressurizing expansion process t3, ( M 1 +M) Kilogram working fluid boosting and heating process 89, (M 1 +M) Kilogram working fluid exothermic cooling, liquefaction and condensate cooling process 9r, M kg working fluid pressure reduction process rs, M kg working fluid Endothermic, vaporization and superheating process st, M 1 kg of working fluid condensate exothermic cooling process rc, M 1 kg of working fluid condensate depressurization process c1-a total of 16 processes.
(2)从能量转换上看：(2) From the perspective of energy conversion:
①放热过程——(M
1+M
2-X)千克工质进行67过程的放热，(M
1+M
2)千克工质进行78过程的放热，(M
1+M)千克工质进行9r过程的放热，以及M
1千克工质冷凝液进行rc过程的放热，其高温部分一般用于被加热介质，低温部分一般用于(M
1+M
2)千克工质进行34过程、(M
1+M
2-X)千克工质进行45过程和M千克工质进行st过程的热需求。
① exothermic - (M 1 + M 2 -X ) 67 kg working fluid exothermic process, (M 1 + M 2) 78 kg working fluid exothermic process, (M 1 + M) ENGINEERING kg The heat release of the 9r process and the heat release of M 1 kg of working fluid condensate in the rc process. The high temperature part is generally used for the heated medium, and the low temperature part is generally used for (M 1 +M 2 ) kg of working fluid. Process, (M 1 +M 2 -X) kilogram of working fluid for 45 process and M kilogram of working fluid for st process.
②吸热过程——一般地，M
1千克工质进行12过程获取低温热负荷，由被制冷介质或低温热源来提供；(M
1+M
2)千克工质进行34过程的吸热，可部分用于获取低温热负荷而部分由回热来满足，或者全部由回热来满足；(M
1+M
2-X)千克工质进行45过程的吸热，可部分用于获取低温热负荷而部分由回热来满足，或者全部由回热来满足；M千克工质进行st过程的吸热，可由回热来满足。
② Endothermic process-Generally, M 1 kg of working fluid undergoes 12 processes to obtain low-temperature heat load, which is provided by the refrigerated medium or low-temperature heat source; (M 1 +M 2 ) kg of working fluid undergoes 34 processes to absorb heat, which can be Part of it is used to obtain low temperature heat load and part of it is satisfied by regenerative heat, or all is satisfied by regenerative heat; (M 1 +M 2 -X) kilogram of working fluid undergoes 45 process heat absorption, which can be partly used to obtain low temperature heat load And part of it is satisfied by the regenerative heat, or the whole is satisfied by the regenerative heat; the heat absorption of the M kg working fluid in the st process can be satisfied by the regenerative heat.
③能量转换过程——M
1千克工质进行23过程，(M
1+M
2-X)千克工质进行56过程，X千克工质进行47过程，以及(M
1+M)千克工质进行89过程，一般由压缩机来完成，需要机械能；(M
2-M)千克工质降压膨胀过程8t和M
2千克工质降压膨胀过程t3由膨胀机来完成并提供机械能，M千克工质进行rs过程和M
1千克工质进行c1过程可由涡轮机或节流阀来完成；降压膨胀作功小于升压耗功，不足部分(循环净功)由外部提供，形成逆向单工质蒸汽联合循环。
③Energy conversion process-M 1 kilogram of working fluid for 23 processes, (M 1 +M 2 -X) kilogram of working fluid for 56 processes, X kilogram of working fluid for 47 processes, and (M 1 +M) kilograms of working fluid for The 89 process is generally completed by a compressor and requires mechanical energy; (M 2 -M) the pressure-reducing expansion process of (M 2 -M) kilogram working fluid 8t and the M 2 kilogram working fluid pressure-reducing expansion process t3 are completed by the expander and provide mechanical energy. The rs process and the C1 process with M 1 kg of working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is less than the pressure boosting work, and the insufficient part (circulation net work) is provided by the outside to form a reverse single working fluid steam Combined cycle.
图7/7所示T-s图中的逆向单工质蒸汽联合循环示例是这样进行的：The example of the reverse single working fluid steam combined cycle in the T-s diagram shown in Fig. 7/7 is as follows:
在图1/7所示的逆向单工质蒸汽联合循环示例中，将其中的“M
1千克工质升压升温过程23”变更为“M
1千克工质升压升温过程2z，M
1千克工质吸热过程z3”；也就是，M
1千克工质升压升温过程23被M
1千克工质升压升温过程2z所取代，并增加M
1千克工质吸热过程z3；M
1千克工质进行z3过程的吸热可由回热来满足或由低温热资源提供，形成逆向单工质蒸汽联合循环。
In the example of the reverse single working fluid steam combined cycle shown in Figure 1/7, the "M 1 kg working fluid boosting process 23" is changed to "M 1 kg working fluid boosting process 2z, M 1 kg Working fluid endothermic process z3"; that is, M 1 kg of working fluid boosting and heating process 23 is replaced by M 1 kg of working fluid boosting and heating process 2z, and M 1 kg of working fluid endothermic process z3 is added; M 1 kg The endothermic heat of the working fluid in the z3 process can be met by regenerative heat or provided by low-temperature heat resources, forming a reverse single working fluid steam combined cycle.
本发明技术可以实现的效果——本发明所提出的逆向单工质蒸汽联合循环，具有如下效果和优势：The effect that can be achieved by the technology of the present invention-the reverse single working substance steam combined cycle proposed by the present invention has the following effects and advantages:
(1)创建机械能制冷与制热利用(能差利用)基础理论。(1) Create the basic theory of mechanical energy cooling and heating utilization (energy difference utilization).
(2)消除或较大幅度减少相变放热过程的热负荷，相对增加高温段放热负荷，实现逆向循环性能指数合理化。(2) Eliminate or significantly reduce the heat load of the phase change heat release process, relatively increase the heat release load of the high temperature section, and realize the rationalization of the reverse cycle performance index.
(3)工质参数范围得到大幅度扩展，实现高效高温供热。(3) The range of working fluid parameters has been greatly expanded to achieve high-efficiency high-temperature heating.
(4)为降低工作压力和提高装置安全性提供理论基础。(4) Provide a theoretical basis for reducing working pressure and improving device safety.
(5)降低循环压缩比，为核心设备的选取和制造提供方便。(5) Reduce the cycle compression ratio to provide convenience for the selection and manufacture of core equipment.
(6)方法简单，流程合理，适用性好，是实现能差有效利用的共性技术。(6) The method is simple, the process is reasonable, and the applicability is good. It is a common technology that can be used effectively.
(7)单一工质，有利于生产和储存；降低运行成本，提高循环调节的灵活性(7) A single working fluid is conducive to production and storage; reduces operating costs and improves the flexibility of cycle adjustment
(8)过程共用，减少过程，为减少设备投资提供理论基础。(8) Process sharing, reducing process, and providing a theoretical basis for reducing equipment investment.
(9)在高温区或变温区，有利于降低放热环节的温差传热损失，提高性能指数。(9) In the high temperature zone or the variable temperature zone, it is beneficial to reduce the temperature difference heat transfer loss in the heat release link and improve the performance index.
(10)在高温供热区采取低压运行方式，缓解或解决传统制冷与热泵装置中性能指数、循环介质参数与管材耐压耐温性能之间的矛盾。(10) Low-pressure operation is adopted in the high-temperature heating zone to alleviate or solve the contradiction between the performance index, circulating medium parameters and the pressure and temperature resistance of pipes in traditional refrigeration and heat pump devices.
(11)在实现高性能指数前提下，可选择低压运行，为提高装置运行安全性提供理论支撑。(11) Under the premise of achieving high performance index, low-voltage operation can be selected to provide theoretical support for improving the operation safety of the device.
(12)工质适用范围广，能够很好地适应供能需求，工质与工作参数之间匹配灵活。(12) The working fluid has a wide application range, can well adapt to the energy supply demand, and the matching between the working fluid and the working parameters is flexible.
(13)扩展了机械能进行冷热高效利用的热力循环范围，有利于更好地实现机械能在制冷、高温供热和变温供热领域的高效利用。(13) Expanding the thermal cycle range for the efficient use of cold and heat of mechanical energy is conducive to better realizing the efficient use of mechanical energy in the fields of refrigeration, high-temperature heating and variable-temperature heating.
Claims (7)
- 逆向单工质蒸汽联合循环，是指由M 1千克和M 2千克组成的工质，分别或共同进行的九个过程——M 1千克工质吸热汽化过程12，M 1千克工质升压过程23，(M 1+M 2)千克工质吸热过程34，(M 1+M 2)千克工质升压过程45，(M 1+M 2)千克工质放热过程56，M 2千克工质降压过程63，M 1千克工质升压过程67，M 1千克工质放热冷凝过程78，M 1千克工质降压过程81——组成的闭合过程。 The reverse single working fluid steam combined cycle refers to the nine processes that are composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg of working fluid endothermic vaporization process 12, M 1 kg of working fluid rises Pressure process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 ) kg working fluid boosting process 45, (M 1 +M 2 ) kg working fluid exothermic process 56, M 2 kg working fluid depressurization process 63, M 1 kg working fluid boosting process 67, M 1 kg working fluid exothermic condensation process 78, M 1 kg working fluid depressurizing process 81-a closed process composed of.
- 逆向单工质蒸汽联合循环，是指由M 1千克和M 2千克组成的工质，分别或共同或部分进行的十二个过程——M 1千克工质吸热汽化过程12，M 1千克工质升压过程23，(M 1+M 2)千克工质吸热过程34，(M 1+M 2-X)千克工质吸热过程45，(M 1+M 2-X)千克工质升压过程56，(M 1+M 2-X)千克工质放热过程67，X千克工质升压过程47，(M 1+M 2)千克工质放热过程78，M 2千克工质降压过程83，M 1千克工质升压过程89，M 1千克工质放热冷凝过程9c，M 1千克工质降压过程c1——组成的闭合过程。 Reverse single working fluid steam combined cycle refers to the working fluid composed of M 1 kg and M 2 kg, which are carried out separately or jointly or partially in twelve processes-M 1 kg working fluid endothermic vaporization process 12, M 1 kg Working fluid boosting process 23, (M 1 +M 2 ) kilogram working fluid endothermic process 34, (M 1 +M 2 -X) kilogram working fluid endothermic process 45, (M 1 +M 2 -X) kilogram working fluid Mass pressure increase process 56, (M 1 +M 2 -X) kg working fluid heat release process 67, X kg working fluid pressure boost process 47, (M 1 +M 2 ) kg working fluid heat release process 78, M 2 kg Working fluid depressurization process 83, M 1 kg working fluid boosting process 89, M 1 kg working fluid exothermic condensation process 9c, M 1 kg working fluid depressurizing process c1-a closed process composed of.
- 逆向单工质蒸汽联合循环，是指由M 1千克和M 2千克组成的工质，分别或共同进行的十一个过程——M 1千克工质吸热汽化过程12，M 1千克工质升压过程23，(M 1+M 2)千克工质吸热过程34，(M 1+M 2)千克工质升压过程45，(M 1+M 2)千克工质放热过程56，M 2千克工质降压过程6a，M 2千克工质吸热过程ab，M 2千克工质降压过程b3，M 1千克工质升压过程67，M 1千克工质放热冷凝过程78，M 1千克工质降压过程81——组成的闭合过程。 Reverse single working fluid steam combined cycle refers to eleven processes composed of M 1 kg and M 2 kg, respectively or jointly-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid Boosting process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 ) kg working fluid boosting process 45, (M 1 +M 2 ) kg working fluid exothermic process 56, M 2 kg working fluid depressurization process 6a, M 2 kg working fluid endothermic process ab, M 2 kg working fluid depressurization process b3, M 1 kg working fluid boosting process 67, M 1 kg working fluid exothermic condensation process 78 , M 1 kg of working fluid depressurization process 81-a closed process of composition.
- 逆向单工质蒸汽联合循环，是指由M 1千克和M 2千克组成的工质，分别或共同或部分进行的十四个过程——M 1千克工质吸热汽化过程12，M 1千克工质升压过程23，(M 1+M 2)千克工质吸热过程34，(M 1+M 2-X)千克工质吸热过程45，(M 1+M 2-X)千克工质升压过程56，(M 1+M 2-X)千克工质放热过程67，X千克工质升压过程47，(M 1+M 2)千克工质放热过程78，M 2千克工质降压过程8a，M 2千克工质吸热过程ab，M 2千克工质降压过程b3，M 1千克工质升压过程89，M 1千克工质放热冷凝过程9c，M 1千克工质降压过程c1——组成的闭合过程。 Reverse single working fluid steam combined cycle refers to the working fluid consisting of M 1 kg and M 2 kg, which are carried out separately or jointly or partially in 14 processes-M 1 kg working fluid endothermic vaporization process 12, M 1 kg Working fluid boosting process 23, (M 1 +M 2 ) kilogram working fluid endothermic process 34, (M 1 +M 2 -X) kilogram working fluid endothermic process 45, (M 1 +M 2 -X) kilogram working fluid Mass pressure increase process 56, (M 1 +M 2 -X) kg working fluid heat release process 67, X kg working fluid pressure boost process 47, (M 1 +M 2 ) kg working fluid heat release process 78, M 2 kg Working fluid depressurization process 8a, M 2 kg working fluid endothermic process ab, M 2 kg working fluid depressurizing process b3, M 1 kg working fluid boosting process 89, M 1 kg working fluid exothermic condensation process 9c, M 1 Kilogram working fluid depressurization process c1-the closed process of composition.
- 逆向单工质蒸汽联合循环，是指由M 1千克和M 2千克组成的工质，分别或共同进行的十三个过程——M 1千克工质吸热汽化过程12，M 1千克工质升压过程23，(M 1+M 2)千克工质吸热过程34，(M 1+M 2)千克工质升压过程45，(M 1+M 2)千克工质放热过程56，(M 2-M)千克工质降压过程6t，M 2千克工质降压过程t3，(M 1+M)千克工质升压过程67，(M 1+M)千克工质放热冷凝过程7r，M千克工质降压过程rs，M千克工质吸热汽化过程st，M 1千克工质放热过程r8，M 1千克工质降压过程81——组成的闭合过程。 Reverse single working fluid steam combined cycle refers to the working fluid composed of M 1 kg and M 2 kg, which are carried out separately or together 13 processes-M 1 kg working fluid endothermic vaporization process 12, M 1 kg working fluid Boosting process 23, (M 1 +M 2 ) kg working fluid endothermic process 34, (M 1 +M 2 ) kg working fluid boosting process 45, (M 1 +M 2 ) kg working fluid exothermic process 56, (M 2 -M) kg working fluid pressure reduction process 6t, M 2 kg working fluid pressure reduction process t3, (M 1 +M) kg working fluid pressure increase process 67, (M 1 +M) kg working fluid exothermic condensation Process 7r, M kilogram working fluid depressurization process rs, M kilogram working fluid endothermic vaporization process st, M 1 kilogram working fluid exothermic process r8, M 1 kilogram working fluid depressurization process 81-a closed process of composition.
- 逆向单工质蒸汽联合循环，是指由M 1千克和M 2千克组成的工质，分别或共同或部分进行的十六个过程——M 1千克工质吸热汽化过程12，M 1千克工质升压过程23，(M 1+M 2)千克工质吸热过程34，(M 1+M 2-X)千克工质吸热过程45，(M 1+M 2-X)千克工质升压过程56，(M 1+M 2-X)千克工质放热过程67，X千克工质升压过程47，(M 1+M 2)千克工质放热过程78，(M 2-M)千克工质降压过程8t，M 2千克工质降压过程t3，(M 1+M)千克工质升压过程89，(M 1+M)千克工质放热冷凝过程9r，M千克工 质降压过程rs，M千克工质吸热汽化过程st，M 1千克工质放热过程rc，M 1千克工质降压过程c1——组成的闭合过程。 Reverse single working fluid steam combined cycle refers to the sixteen processes that are composed of M 1 kg and M 2 kg, which are carried out separately or jointly or partially-M 1 kg working fluid endothermic vaporization process 12, M 1 kg Working fluid boosting process 23, (M 1 +M 2 ) kilogram working fluid endothermic process 34, (M 1 +M 2 -X) kilogram working fluid endothermic process 45, (M 1 +M 2 -X) kilogram working fluid Process 56 of (M 1 +M 2 -X) kilogram of working fluid exothermic process 67, X kilogram of working fluid boost process of 47, (M 1 +M 2 ) kilogram of working fluid exothermic process 78, (M 2 -M) the pressure reduction process of kilogram working fluid 8t, the pressure reduction process of M 2 kilogram working fluid t3, the pressure increase process of (M 1 +M) kilogram working fluid 89, the exothermic condensation process of (M 1 +M) kilogram working fluid 9r, M kilogram working fluid depressurization process rs, M kilogram working fluid endothermic vaporization process st, M 1 kilogram working fluid exothermic process rc, M 1 kilogram working fluid depressurization process c1-a closed process composed of.
- 逆向单工质蒸汽联合循环，是在权利要求1-6所述的任一逆向单工质蒸汽联合循环中，将其中的“M 1千克工质升压过程23”变更为“M 1千克工质升压过程2z，M 1千克工质吸热过程z3”，形成对应的逆向单工质蒸汽联合循环。 The reverse single working fluid steam combined cycle is a reverse single working fluid steam combined cycle described in claims 1-6, in which the "M 1 kg working fluid boosting process 23" is changed to "M 1 kg working fluid". The mass pressure boosting process 2z, the M 1 kg working fluid endothermic process z3", forms the corresponding reverse single working fluid steam combined cycle.
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