WO2021047125A1 - Reverse single-working-medium steam combined cycle - Google Patents
Reverse single-working-medium steam combined cycle Download PDFInfo
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- WO2021047125A1 WO2021047125A1 PCT/CN2020/000212 CN2020000212W WO2021047125A1 WO 2021047125 A1 WO2021047125 A1 WO 2021047125A1 CN 2020000212 W CN2020000212 W CN 2020000212W WO 2021047125 A1 WO2021047125 A1 WO 2021047125A1
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- working fluid
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- depressurization
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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
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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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
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
Definitions
- the invention belongs to the 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 + M 2) kg refrigerant endothermic process 23, (M 1 + M 2 ) kg bootstrapping working medium 34, (M 1 + M 2 ) kg exothermic process working medium 45, M 2 56 kg refrigerant exothermic process , M 2 kg working fluid depressurization process 62, M 1 kg working fluid boosting process 57, 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 the working fluid composed of M 1 kilogram and M 2 kilograms, which are carried out separately or jointly or partially in twelve processes-M 1 kilogram working fluid endothermic vaporization process 12, ( M 1 +M 2 ) kg working fluid endothermic process 23, (M 1 +M 2 -X) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid boosting process 45, (M 1 +M 2 -X) Kilogram working fluid heat release process 56, X kilogram working fluid boost process 36, (M 1 +M 2 ) Kilogram working fluid heat release process 67, M 2 kg working fluid heat release process 78, M 2 kg working fluid depressurization process 82, M 1 kg working fluid boosting process 79, 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 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 + M 2) kg refrigerant endothermic process 23, (M 1 + M 2 ) kg bootstrapping working medium 34, (M 1 + M 2 ) kg exothermic process working medium 45, M 2 kg exothermic process refrigerants 56, M 2 kg working fluid depressurization process 6a, M 2 kg working fluid endothermic process ab, M 2 kg working fluid depressurization process b2, M 1 kg working fluid boosting process 57, 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 working fluid composed 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 +M 2 ) kg working fluid endothermic process 23, (M 1 +M 2 -X) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid boosting process 45, (M 1 +M 2 -X) Kilogram working fluid heat release process 56, X kilogram working fluid boost process 36, (M 1 +M 2 ) Kilogram working fluid heat release process 67, 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 b2, M 1 kg working fluid boosting process 79, 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 consisting of M 1 kilogram and M 2 kilograms of working fluid, which are carried out separately or jointly-M 1 kilogram of working fluid endothermic vaporization process 12, (M 1 +M 2 ) Kilogram working fluid endothermic process 23, (M 1 +M 2 ) Kilogram working fluid boosting process 34, (M 1 +M 2 ) Kilogram working fluid exothermic process 45, (M 2 -M) Kilogram working fluid Heat release process 56, (M 2 -M) kg working fluid depressurization process 6t, M 2 kg working fluid depressurization process t2, (M 1 +M) kg working fluid boosting process 57, (M 1 +M) Kilogram 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——composition The closing process.
- Reverse single working fluid steam combined cycle refers to the sixteen processes that are composed of M 1 kg and M 2 kg, respectively, together or in part-M 1 kg working fluid endothermic vaporization process 12, ( M 1 +M 2 ) kg working fluid endothermic process 23, (M 1 +M 2 -X) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid boosting process 45, (M 1 +M 2 -X) Kilogram working fluid heat release process 56, X kilogram working fluid boosting process 36, (M 1 +M 2 ) Kilogram working fluid heat release process 67, (M 2 -M) Kilogram working fluid heat release Process 78, (M 2 -M) kg working fluid pressure reduction process 8t, M 2 kg working fluid pressure reduction process t2, (M 1 +M) kg working fluid pressure increase process 79, (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
- Figure 1/6 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. 2/6 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. 3/6 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. 4/6 is an example diagram of the fourth principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
- Figure 5/6 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. 6/6 is an example diagram of the sixth principle flow chart of the reverse single working fluid steam combined cycle provided by the present invention.
- the working medium is carried out——M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 ) kg working fluid pressure rising process 34, (M 1 +M 2 ) Kilogram working fluid exothermic cooling process 45, M 2 kg working fluid exothermic cooling process 56, M 2 kg working fluid depressurizing expansion process 62, M 1 kg working fluid pressure increasing process 57, 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 may be satisfied by the reheating of the condensate; (M 1 +M 2 )
- the heat absorption of the kilogram working fluid in the 23 process can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and the other part is satisfied by regenerative heat, or all of which is satisfied by regenerative heat.
- Working medium M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 -X) kg working fluid endothermic heating process 34, (M 1 +M 2 -X) Kilogram working fluid boosting and heating process 45, (M 1 +M 2 -X) Kilogram working fluid exothermic and cooling process 56, X kg working fluid boosting and heating process 36, (M 1 + M 2 ) Kilogram working fluid exothermic cooling process 67, M 2 kg working fluid exothermic cooling process 78, M 2 kg working fluid depressurizing expansion process 82, M 1 kg working fluid pressure increasing process 79, 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 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 may be satisfied by the reheating of the condensate;
- M 1 +M 2 The heat absorption of the kilogram of working fluid for 23 processes can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by heat recovery;
- M 1 +M 2 -X kilogram of working fluid is used for 34 processes
- the endothermic heat can be used to obtain low-temperature heat load, or partly to obtain low-temperature heat load and partly to be satisfied by regenerative heat, or all to be satisfied by regenerative heat.
- 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 (net cycle net work) ) Provided from the outside to form a reverse single working substance steam combined cycle.
- the working medium is carried out——M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 ) kg working fluid pressure rising process 34, (M 1 + M 2 ) Kilogram working fluid exothermic cooling process 45, M 2 kg working fluid exothermic cooling process 56, M 2 kg working fluid depressurization expansion process 6a, M 2 kg working fluid endothermic heating up ab, M 2 kg working fluid Mass depressurization and expansion process b2, M 1 kg of working fluid’s pressure increasing and heating process 57, M 1 kg of working fluid’s exothermic cooling, liquefaction and condensate cooling process 78, M 1 kg of working fluid’s condensate depressurizing process 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 may be satisfied by the reheating of the condensate; (M 1 +M 2 )
- the endothermic process of 23 kilograms of working fluid can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat;
- M 2 kg of working fluid is used for ab
- the heat absorption of the process can be satisfied by reheating or by an external heat source.
- 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.
- Working medium M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 -X) kg working fluid endothermic heating process 34, (M 1 +M 2 -X) Kilogram working fluid boosting and heating process 45, (M 1 +M 2 -X) Kilogram working fluid exothermic and cooling process 56, X kg working fluid boosting and heating process 36, (M 1 + M 2 ) kg working fluid exothermic cooling process 67, 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 b2, M 1 kg working fluid pressure increasing process 79, 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 the superheated part may be satisfied by the reheating of the condensate;
- M 1 +M 2 The heat absorption of the 23 process in kilograms of working fluid can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat;
- M 1 +M 2- X The endothermic process of 34 kilograms of working fluid can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat;
- M 2 kg of working fluid is used for ab
- the heat absorption of the process can be satisfied by reheating or by an external heat source.
- 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 work) is provided by the outside, forming a reverse single working substance steam combined cycle.
- the working medium is carried out——M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 ) kg working fluid pressure rising process 34, (M 1 +M 2 ) Kilogram working fluid exothermic and cooling process 45, (M 2 -M) Kilogram working fluid exothermic and cooling process 56, (M 2 -M) Kilogram working fluid depressurization and expansion process 6t, M 2 kg working fluid drops Pressure expansion process t2, (M 1 +M) kg working fluid pressure rising process 57, (M 1 +M) kg working fluid exothermic cooling, liquefaction and condensate exothermic cooling process 7r, M kg working fluid pressure reduction 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 depressurization 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, and the superheated part may be satisfied by the reheating of the condensate; (M 1 +M 2 )
- the heat absorption of the 23 process of kilogram working fluid can be used to obtain low temperature heat load, or part of it is used to obtain low temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat;
- M kg of working fluid is used for st process
- the endothermic heat is generally satisfied by reheating.
- Working medium M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 -X) kg working fluid endothermic heating process 34, (M 1 +M 2 -X) Kilogram working fluid boosting and heating process 45, (M 1 +M 2 -X) Kilogram working fluid exothermic and cooling process 56, X kg working fluid boosting and heating process 36, (M 1 + M 2) kg refrigerant heat cooling process 67, (M 2 -M) kg refrigerant heat cooling process 78, (M 2 -M) kg refrigerant expansion process down 8t, M 2 kg refrigerant expansion buck Process t2, (M 1 +M) kg working fluid pressure increasing process 79, (M 1 +M) kg working fluid exothermic cooling, liquefaction and condensate exothermic cooling process 9r, M kg working fluid pressure reducing process rs, M kg refrigerant absorbs heat, vaporization and superheating process st,
- 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 may be satisfied by the reheating of the condensate;
- M 1 +M 2 The heat absorption of the 23 process in kilograms of working fluid can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat;
- M 1 +M 2- X The endothermic process of 34 kilograms of working fluid can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat;
- M kg of working fluid is subjected to st process The heat absorption can be satisfied by reheating.
- 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: an M1 kg of working medium endothermic vaporization process 12, an (M1+M2) kg of working medium endothermic process 23, an (M1+M2) kg of working medium pressure boosting process 34, an (M1+M2) kg of working medium exothermic process 45, an M2 kg of working medium exothermic process 56, an M2 kg of working medium pressure reduction process 62, an M1 kg of working medium pressure boosting process 57, 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+M
2)千克工质吸热过程23，(M
1+M
2)千克工质升压过程34，(M
1+M
2)千克工质放热过程45，M
2千克工质放热过程56，M
2千克工质降压过程62，M
1千克工质升压过程57，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 + M 2) kg refrigerant endothermic process 23, (M 1 + M 2 ) kg bootstrapping working medium 34, (M 1 + M 2 ) kg exothermic process working medium 45, M 2 56 kg refrigerant exothermic process , M 2 kg working fluid depressurization process 62, M 1 kg working fluid boosting process 57, 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+M
2)千克工质吸热过程23，(M
1+M
2-X)千克工质吸热过程34，(M
1+M
2-X)千克工质升压过程45，(M
1+M
2-X)千克工质放热过程56，X千克工质升压过程36，(M
1+M
2)千克工质放热过程67，M
2千克工质放热过程78，M
2千克工质降压过程82，M
1千克工质升压过程79，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 the working fluid composed of M 1 kilogram and M 2 kilograms, which are carried out separately or jointly or partially in twelve processes-M 1 kilogram working fluid endothermic vaporization process 12, ( M 1 +M 2 ) kg working fluid endothermic process 23, (M 1 +M 2 -X) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid boosting process 45, (M 1 +M 2 -X) Kilogram working fluid heat release process 56, X kilogram working fluid boost process 36, (M 1 +M 2 ) Kilogram working fluid heat release process 67, M 2 kg working fluid heat release process 78, M 2 kg working fluid depressurization process 82, M 1 kg working fluid boosting process 79, 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+M
2)千克工质吸热过程23，(M
1+M
2)千克工质升压过程34，(M
1+M
2)千克工质放热过程45，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b2，M
1千克工质升压过程57，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 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 + M 2) kg refrigerant endothermic process 23, (M 1 + M 2 ) kg bootstrapping working medium 34, (M 1 + M 2 ) kg exothermic process working medium 45, M 2 kg exothermic process refrigerants 56, M 2 kg working fluid depressurization process 6a, M 2 kg working fluid endothermic process ab, M 2 kg working fluid depressurization process b2, M 1 kg working fluid boosting process 57, 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+M
2)千克工质吸热过程23，(M
1+M
2-X)千克工质吸热过程34，(M
1+M
2-X)千克工质升压过程45，(M
1+M
2-X)千克工质放热过程56，X千克工质升压过程36，(M
1+M
2)千克工质放热过程67，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b2，M
1千克工质升压过程79，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 working fluid composed 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 +M 2 ) kg working fluid endothermic process 23, (M 1 +M 2 -X) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid boosting process 45, (M 1 +M 2 -X) Kilogram working fluid heat release process 56, X kilogram working fluid boost process 36, (M 1 +M 2 ) Kilogram working fluid heat release process 67, 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 b2, M 1 kg working fluid boosting process 79, 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+M
2)千克工质吸热过程23，(M
1+M
2)千克工质升压过程34，(M
1+M
2)千克工质放热过程45，(M
2-M)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t2，(M
1+M)千克工质升压过程57，(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 consisting of M 1 kilogram and M 2 kilograms of working fluid, which are carried out separately or jointly-M 1 kilogram of working fluid endothermic vaporization process 12, (M 1 +M 2 ) Kilogram working fluid endothermic process 23, (M 1 +M 2 ) Kilogram working fluid boosting process 34, (M 1 +M 2 ) Kilogram working fluid exothermic process 45, (M 2 -M) Kilogram working fluid Heat release process 56, (M 2 -M) kg working fluid depressurization process 6t, M 2 kg working fluid depressurization process t2, (M 1 +M) kg working fluid boosting process 57, (M 1 +M) Kilogram 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——composition The closing process.
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+M
2)千克工质吸热过程23，(M
1+M
2-X)千克工质吸热过程34，(M
1+M
2-X)千克工质升压过程45，(M
1+M
2-X)千克工质放热过程56，X千克工质升压过程36，(M
1+M
2)千克工质放热过程67，(M
2-M)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t2，(M
1+M)千克工质升压过程79，(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, respectively, together or in part-M 1 kg working fluid endothermic vaporization process 12, ( M 1 +M 2 ) kg working fluid endothermic process 23, (M 1 +M 2 -X) kg working fluid endothermic process 34, (M 1 +M 2 -X) kg working fluid boosting process 45, (M 1 +M 2 -X) Kilogram working fluid heat release process 56, X kilogram working fluid boosting process 36, (M 1 +M 2 ) Kilogram working fluid heat release process 67, (M 2 -M) Kilogram working fluid heat release Process 78, (M 2 -M) kg working fluid pressure reduction process 8t, M 2 kg working fluid pressure reduction process t2, (M 1 +M) kg working fluid pressure increase process 79, (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——composition closed process .
图1/6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。Figure 1/6 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2/6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. 2/6 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3/6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. 3/6 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4/6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. 4/6 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5/6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。Figure 5/6 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6/6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. 6/6 is an example diagram of the sixth 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, it is not repeated unless necessary, and the obvious process is not described; the following describes the present invention in detail with reference to the accompanying drawings and examples.
图1/6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 1/6 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+M
2)千克工质吸热升温过程23，(M
1+M
2)千克工质升压升温过程34，(M
1+M
2)千克工质放热降温过程45，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62，M
1千克工质升压升温过程57，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。
The working medium is carried out——M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 ) kg working fluid pressure rising process 34, (M 1 +M 2 ) Kilogram working fluid exothermic cooling process 45, M 2 kg working fluid exothermic cooling process 56, M 2 kg working fluid depressurizing expansion process 62, M 1 kg working fluid pressure increasing process 57, 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——一般地，(M
1+M
2)千克工质进行45过程的放热，M
1千克工质进行78过程的放热，以及M
2千克工质进行56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23过程的热需求。
①Exothermic process——Generally, (M 1 +M 2 ) kilogram of working fluid carries out the heat release of 45 processes, M 1 kilogram of working fluid carries out the heat release of 78 processes, and M 2 kilograms of working fluid carries out the heat release of 56 processes. , The high temperature part is generally used for the heated medium, and the low temperature part is generally used for (M 1 +M 2 ) kilograms of working fluid for the heat demand of the 23 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，其过热部分或可由冷凝液的回热来满足；(M
1+M
2)千克工质进行23过程的吸热，可用于获取低温热负荷，或者一部分用于获取低温热负荷而另一部分由回热来满足，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 may be satisfied by the reheating of the condensate; (M 1 +M 2 ) The heat absorption of the kilogram working fluid in the 23 process can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and the other part is satisfied by regenerative heat, or all of which is satisfied by regenerative heat.
③能量转换过程——(M
1+M
2)千克工质进行34过程和M
1千克工质进行57过程，一般由压缩机来完成，需要机械能；M
2千克工质进行62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 + M 2 ) kilogram of working fluid for 34 processes and M 1 kilogram of working fluid for 57 processes, which are generally completed by compressors and require mechanical energy; M 2 kilograms of working fluid for 62 processes are performed by expanders To complete 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 (circulation net work) is provided by the outside to form a reverse single working medium Steam combined cycle.
图2/6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 2/6 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+M
2)千克工质吸热升温过程23，(M
1+M
2-X)千克工质吸热升温过程34，(M
1+M
2-X)千克工质升压升温过程45，(M
1+M
2-X)千克工质放热降温过程56，X千克工质升压升温过程36，(M
1+M
2)千克工质放热降温过程67，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82，M
1千克工质升压升温过程79，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。
Working medium: M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 -X) kg working fluid endothermic heating process 34, (M 1 +M 2 -X) Kilogram working fluid boosting and heating process 45, (M 1 +M 2 -X) Kilogram working fluid exothermic and cooling process 56, X kg working fluid boosting and heating process 36, (M 1 + M 2 ) Kilogram working fluid exothermic cooling process 67, M 2 kg working fluid exothermic cooling process 78, M 2 kg working fluid depressurizing expansion process 82, M 1 kg working fluid pressure increasing process 79, 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56过程的放热，(M
1+M
2)千克工质进行67过程的放热，M
1千克工质进行9c过程的放热，以及M
2千克工质进行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23过程和(M
1+M
2-X)千克工质进行34过程的热需求。
①Exothermic process——(M 1 +M 2 -X) kilogram of working fluid carries out the heat release of 56 process, (M 1 +M 2 ) kilogram of working fluid carries out the heat release of 67 process, and M 1 kilogram of working fluid carries out 9c process exotherm, and the exotherm working medium M 2 kg for 78 process, which are generally used for high-temperature portion of the heating medium, is generally used for low temperature portion (M 1 + M 2) 23 kg processes and for working medium (M 1 + M 2 -X) The heat demand of 34 processes with 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，其过热部分或可由冷凝液的回热来满足；(M
1+M
2)千克工质进行23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； (M
1+M
2-X)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 may be satisfied by the reheating of the condensate; (M 1 +M 2 ) The heat absorption of the kilogram of working fluid for 23 processes can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by heat recovery; (M 1 +M 2 -X) kilogram of working fluid is used for 34 processes The endothermic heat can be used to obtain low-temperature heat load, or partly to obtain low-temperature heat load and partly to be satisfied by regenerative heat, or all to be satisfied by regenerative heat.
③能量转换过程——(M
1+M
2-X)千克工质进行45过程、X千克工质进行36过程和M
1千克工质进行79过程，一般由压缩机来完成，需要机械能；M
2千克工质进行82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 +M 2 -X) kilogram of working fluid for 45 processes, X kilogram of working fluid for 36 processes, and M 1 kilogram of working fluid for 79 processes, which are generally completed by a compressor and require mechanical energy; M The 82 process of 2 kg of working fluid is completed by the expander and the mechanical energy is provided . 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 (net cycle net work) ) Provided from the outside to form a reverse single working substance steam combined cycle.
图3/6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 3/6 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+M
2)千克工质吸热升温过程23，(M
1+M
2)千克工质升压升温过程34，(M
1+M
2)千克工质放热降温过程45，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b2，M
1千克工质升压升温过程57，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。
The working medium is carried out——M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 ) kg working fluid pressure rising process 34, (M 1 + M 2 ) Kilogram working fluid exothermic cooling process 45, M 2 kg working fluid exothermic cooling process 56, M 2 kg working fluid depressurization expansion process 6a, M 2 kg working fluid endothermic heating up ab, M 2 kg working fluid Mass depressurization and expansion process b2, M 1 kg of working fluid’s pressure increasing and heating process 57, M 1 kg of working fluid’s exothermic cooling, liquefaction and condensate cooling process 78, M 1 kg of working fluid’s condensate depressurizing process 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45过程的放热，M
1千克工质进行78过程的放热，以及M
2千克工质进行56过程的放热，其高温部分用于被加热介质，低温部分用于(M
1+M
2)千克工质进行23过程、M
2千克工质进行ab过程的热需求(回热)。
①Exothermic process——Generally, (M 1 +M 2 ) kilogram of working fluid carries out the heat release of 45 processes, M 1 kilogram of working fluid carries out the heat release of 78 processes, and M 2 kilograms of working fluid carries out the heat release of 56 processes. , The high temperature part is used for the heated medium, the low temperature part is used for (M 1 + M 2 ) kg of working fluid for 23 processes, and M 2 kg of working fluid for the heat demand (regeneration) of the ab 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，其过热部分或可由冷凝液的回热来满足；(M
1+M
2)千克工质进行23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 may be satisfied by the reheating of the condensate; (M 1 +M 2 ) The endothermic process of 23 kilograms of working fluid can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat; M 2 kg of working fluid is used for ab The heat absorption of the process can be satisfied by reheating or by an external heat source.
③能量转换过程——(M
1+M
2)千克工质进行34过程和M
1千克工质进行57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、b2两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 + M 2 ) kilogram of working fluid for 34 processes and M 1 kilogram of working fluid for 57 processes, which are generally completed by compressors and require mechanical energy; M 2 kilograms of working fluid for 6a and b2 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4/6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 4/6 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+M
2)千克工质吸热升温过程23，(M
1+M
2-X)千克工质吸热升温过程34，(M
1+M
2-X)千克工质升压升温过程45，(M
1+M
2-X)千克工质放热降温过程56，X千克工质升压升温过程36，(M
1+M
2)千克工质放热降温过程67，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b2，M
1千克工质升压升温过程79，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。
Working medium: M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 -X) kg working fluid endothermic heating process 34, (M 1 +M 2 -X) Kilogram working fluid boosting and heating process 45, (M 1 +M 2 -X) Kilogram working fluid exothermic and cooling process 56, X kg working fluid boosting and heating process 36, (M 1 + M 2 ) kg working fluid exothermic cooling process 67, 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 b2, M 1 kg working fluid pressure increasing process 79, 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56过程的放热，(M
1+M
2)千克工质进行67过程的放热，M
1千克工质进行9c过程的放热，以及M
2千克工质进行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23过程、(M
1+M
2-X)千克工质进行34过程和M
2千克工质进行ab过程的热需求。
①Exothermic process——(M 1 +M 2 -X) kilogram of working fluid carries out the heat release of 56 process, (M 1 +M 2 ) kilogram of working fluid carries out the heat release of 67 process, and M 1 kilogram of working fluid carries out 9c process exotherm, and the exotherm working medium M 2 kg for 78 process, which are generally used for high-temperature portion of the heating medium, is generally used for low temperature portion (M 1 + M 2) 23 kg process for working medium, (M 1 + M 2 -X) The heat demand of the 34 process with the working medium of M 2 -X) and the process of the ab with the working medium of M 2 kg.
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，其过热部分或可由冷凝液的回热来满足；(M
1+M
2)千克工质进行23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，或者全部由回热来满足；(M
1+M
2-X)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 may be satisfied by the reheating of the condensate; (M 1 +M 2 ) The heat absorption of the 23 process in kilograms of working fluid can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat; (M 1 +M 2- X) The endothermic process of 34 kilograms of working fluid can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat; M 2 kg of working fluid is used for ab The heat absorption of the process can be satisfied by reheating or by an external heat source.
③能量转换过程——(M
1+M
2-X)千克工质进行45过程、X千克工质进行36过程和M
1千克工质进行79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、b2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 +M 2 -X) kilogram of working fluid for 45 processes, X kilogram of working fluid for 36 processes, and M 1 kilogram of working fluid for 79 processes, which are generally completed by a compressor and require mechanical energy; M The 8a, b2 process of 2 kg of working fluid is completed by the expander and the mechanical energy is provided . 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 work) is provided by the outside, forming a reverse single working substance steam combined cycle.
图5/6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. 5/6 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+M
2)千克工质吸热升温过程23，(M
1+M
2)千克工质升压升温过程34，(M
1+M
2)千克工质放热降温过程45，(M
2-M)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t2，(M
1+M)千克工质升压升温过程57，(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。
The working medium is carried out——M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 ) kg working fluid pressure rising process 34, (M 1 +M 2 ) Kilogram working fluid exothermic and cooling process 45, (M 2 -M) Kilogram working fluid exothermic and cooling process 56, (M 2 -M) Kilogram working fluid depressurization and expansion process 6t, M 2 kg working fluid drops Pressure expansion process t2, (M 1 +M) kg working fluid pressure rising process 57, (M 1 +M) kg working fluid exothermic cooling, liquefaction and condensate exothermic cooling process 7r, M kg working fluid pressure reduction 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 depressurization 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45过程的放热，(M
1+M)千克工质进行7r过程的放热，M
1千克工质冷凝液进行r8过程的放热，以及(M
2-M)千克进行56过程的放热，其高温部分用于被加热介质，低温部分用于(M
1+M
2)千克工质进行23过程、M千克工质进行st过程的热需求(回热)。
①Exothermic process——Generally, (M 1 +M 2 ) kilogram of working fluid carries out the heat release of 45 process, (M 1 +M) kilogram of working fluid carries out the heat release of 7r process, and M 1 kilogram of working fluid condensate is carried out. The heat release of the r8 process and the heat release of (M 2 -M) kg for 56 processes, the high temperature part is used for the heated medium, and the low temperature part is used for (M 1 +M 2 ) kg working fluid for 23 processes, M kg The heat demand (regeneration) of the working fluid for the 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，其过热部分或可由冷凝液的回热来满足；(M
1+M
2)千克工质进行23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, and the superheated part may be satisfied by the reheating of the condensate; (M 1 +M 2 ) The heat absorption of the 23 process of kilogram working fluid can be used to obtain low temperature heat load, or part of it is used to obtain low temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat; M kg of working fluid is used for st process The endothermic heat is generally satisfied by reheating.
③能量转换过程——(M
1+M
2)千克工质进行34过程和(M
1+M)千克工质进行57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6t和M
2千克工质降压膨胀过程t2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 +M 2 ) kilogram of working fluid for 34 processes and (M 1 +M) kilogram of working fluid for 57 processes, which are generally completed by compressors and require mechanical energy; (M 2 -M) kilograms Working fluid pressure-reducing expansion process 6t and M 2 kilogram working fluid pressure-reducing expansion process t2 are completed by the expander and provide mechanical energy, M kilogram working fluid for rs process and M 1 kilogram working fluid for 81 process can be done by turbine or throttle valve Completed; the work done by the pressure-reducing expansion is less than the work consumed by the pressure-boosting, and the insufficient part (the net cycle power) is provided by the outside, forming a reverse single working substance steam combined cycle.
图6/6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. 6/6 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+M
2)千克工质吸热升温过程23，(M
1+M
2-X)千克工质吸热升温过程34，(M
1+M
2-X)千克工质升压升温过程45，(M
1+M
2-X)千克工质放热降温过程56，X千克工质升压升温过程36，(M
1+M
2)千克工质放热降温过程67，(M
2-M)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t2，(M
1+M)千克工质升压升温过程79，(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。
Working medium: M 1 kg working fluid endothermic vaporization process 12, (M 1 +M 2 ) kg working fluid endothermic heating process 23, (M 1 +M 2 -X) kg working fluid endothermic heating process 34, (M 1 +M 2 -X) Kilogram working fluid boosting and heating process 45, (M 1 +M 2 -X) Kilogram working fluid exothermic and cooling process 56, X kg working fluid boosting and heating process 36, (M 1 + M 2) kg refrigerant heat cooling process 67, (M 2 -M) kg refrigerant heat cooling process 78, (M 2 -M) kg refrigerant expansion process down 8t, M 2 kg refrigerant expansion buck Process t2, (M 1 +M) kg working fluid pressure increasing process 79, (M 1 +M) kg working fluid exothermic cooling, liquefaction and condensate exothermic cooling process 9r, M kg working fluid pressure reducing process rs, M kg refrigerant absorbs heat, vaporization and superheating process st, M 1 kg refrigerant cooling process condensate heat rc, M 1 kg refrigerant condensate depressurization c1-- 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56过程的放热，(M
1+M
2)千克工质进行67过程的放热，(M
1+M)千克工质进行9r过程的放热，M
2千克工质进行78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23过程、(M
1+M
2-X)千克工质进行34过程和M千克工质进行st过程的热需求。
① exothermic - (M 1 + M 2 -X ) 56 kg working fluid exothermic process, (M 1 + M 2) 67 kg working fluid exothermic process, (M 1 + M) ENGINEERING kg The heat release of the 9r process by the M 2 kg working fluid, the heat release of the 78 process by the M 2 kg working fluid, and the heat release of the rc process by the M 1 kg working fluid condensate. The high temperature part is generally used for the heated medium, and the low temperature part is generally used for The heat demand of (M 1 +M 2 ) kg of working fluid for 23 processes, (M 1 +M 2 -X) kg of working fluid for 34 processes, and M kg of working fluids 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，其过热部分或可由冷凝液的回热来满足；(M
1+M
2)千克工质进行23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，或者全部由回热来满足；(M
1+M
2-X)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, and the superheated part may be satisfied by the reheating of the condensate; (M 1 +M 2 ) The heat absorption of the 23 process in kilograms of working fluid can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat; (M 1 +M 2- X) The endothermic process of 34 kilograms of working fluid can be used to obtain low-temperature heat load, or part of it is used to obtain low-temperature heat load and part is satisfied by regenerative heat, or all is satisfied by regenerative heat; M kg of working fluid is subjected to st process The heat absorption can be satisfied by reheating.
③能量转换过程——(M
1+M
2-X)千克工质进行45过程、X千克工质进行36过程和(M
1+M)千克工质进行79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t2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 +M 2 -X) kilogram of working fluid for 45 processes, X kilogram of working fluid for 36 processes, and (M 1 +M) kilograms of working fluid for 79 processes, which are generally completed by compressors. Requires mechanical energy; (M 2 -M) kg working fluid pressure reduction expansion process 8t and M 2 kg working fluid pressure reduction expansion process t2 are completed by the expander and provide mechanical energy, M kg working fluid is used for the rs process and M 1 kg working fluid The c1 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 (the net cycle power) is provided by the outside, forming a reverse single-working-substance 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 (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，分别或共同进行的九个过程——M 1千克工质吸热汽化过程12，(M 1+M 2)千克工质吸热过程23，(M 1+M 2)千克工质升压过程34，(M 1+M 2)千克工质放热过程45，M 2千克工质放热过程56，M 2千克工质降压过程62，M 1千克工质升压过程57，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 working fluid endothermic vaporization process 12, (M 1 +M 2 ) Kilogram working fluid endothermic process 23, (M 1 +M 2 ) Kilogram working fluid boost process 34, (M 1 +M 2 ) Kilogram working fluid heat release process 45, M 2 Kilogram working fluid heat release process 56, M 2 kg working fluid depressurization process 62, M 1 kg working fluid boosting process 57, 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+M 2)千克工质吸热过程23，(M 1+M 2-X)千克工质吸热过程34，(M 1+M 2-X)千克工质升压过程45，(M 1+M 2-X)千克工质放热过程56，X千克工质升压过程36，(M 1+M 2)千克工质放热过程67，M 2千克工质放热过程78，M 2千克工质降压过程82，M 1千克工质升压过程79，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 steam combined cycle working fluid, the working fluid means in kilograms and M 1 M 2 kilogram composed, separately or together or partially twelve process --M 1 kilogram of working fluid 12 is endothermic vaporization, (M 1 +M 2 ) Kilogram working fluid endothermic process 23, (M 1 +M 2 -X) Kilogram working fluid endothermic process 34, (M 1 +M 2 -X) Kilogram working fluid boosting process 45, (M 1 + M 2 -X) Kg working fluid heat release process 56, X Kg working fluid boosting process 36, (M 1 +M 2 ) Kg working fluid heat release process 67, M 2 Kg working fluid heat release process 78, M 2 kg refrigerant depressurization 82, M 1 kilogram bootstrapping working fluid 79, M 1 kilogram refrigerant radiates heat and condenses process 9c, M 1 kilogram working medium composed of depressurization c1-- closing process.
- 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+M 2)千克工质吸热过程23，(M 1+M 2)千克工质升压过程34，(M 1+M 2)千克工质放热过程45，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b2，M 1千克工质升压过程57，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 eleven 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 +M 2 ) Kilogram working fluid endothermic process 23, (M 1 +M 2 ) kilogram working fluid boosting process 34, (M 1 +M 2 ) kilogram working fluid exothermic process 45, 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 b2, M 1 kg working fluid boosting process 57, 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+M 2)千克工质吸热过程23，(M 1+M 2-X)千克工质吸热过程34，(M 1+M 2-X)千克工质升压过程45，(M 1+M 2-X)千克工质放热过程56，X千克工质升压过程36，(M 1+M 2)千克工质放热过程67，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b2，M 1千克工质升压过程79，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。 The 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 +M 2 ) Kilogram working fluid endothermic process 23, (M 1 +M 2 -X) Kilogram working fluid endothermic process 34, (M 1 +M 2 -X) Kilogram working fluid boosting process 45, (M 1 + M 2 -X) Kg working fluid heat release process 56, X Kg working fluid boosting process 36, (M 1 +M 2 ) Kg working fluid heat release process 67, 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 b2, M 1 kg working fluid boosting process 79, 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+M 2)千克工质吸热过程23，(M 1+M 2)千克工质升压过程34，(M 1+M 2)千克工质放热过程45，(M 2-M)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t2，(M 1+M)千克工质升压过程57，(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 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 +M 2 ) Kilogram working fluid endothermic process 23, (M 1 +M 2 ) kilogram working fluid boosting process 34, (M 1 +M 2 ) kilogram working fluid exothermic process 45, (M 2 -M) kilogram working fluid release Thermal process 56, (M 2 -M) kg working fluid pressure reduction process 6t, M 2 kg working fluid pressure reduction process t2, (M 1 +M) kg working fluid pressure increase process 57, (M 1 +M) kg working fluid Exothermic 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-composition closure process.
- 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+M 2)千克工质吸热过程23，(M 1+M 2-X)千克工质吸热过程34，(M 1+M 2-X)千克工质升压过程45，(M 1+M 2-X)千克工质放热过程56，X千克工质升压过程36，(M 1+M 2)千克工质放热过程67，(M 2-M) 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t2，(M 1+M)千克工质升压过程79，(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。 The 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 of working fluid endothermic vaporization process 12, (M 1 +M 2 ) Kilogram working fluid endothermic process 23, (M 1 +M 2 -X) Kilogram working fluid endothermic process 34, (M 1 +M 2 -X) Kilogram working fluid boosting process 45, (M 1 + M 2 -X) kilogram working fluid heat release process 56, X kilogram working fluid boosting process 36, (M 1 +M 2 ) kilogram working fluid heat release process 67, (M 2 -M) kilogram working fluid heat release process 78 , (M 2 -M) kg working fluid pressure reduction process 8t, M 2 kg working fluid pressure reduction process t2, (M 1 +M) kg working fluid pressure increase process 79, (M 1 +M) kg working fluid heat release 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.
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| CN106440510B (en) * | 2016-02-25 | 2020-05-29 | 李华玉 | Second-class thermally-driven compression heat pump |
| CN108679880B (en) * | 2017-03-30 | 2021-07-27 | 李华玉 | Double-working medium combined cycle compression heat pump |
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| JPH03125863A (en) * | 1989-10-06 | 1991-05-29 | Matsushita Electric Ind Co Ltd | Refrigerating cycle unit with two stage compression |
| CN1847750A (en) * | 2005-02-28 | 2006-10-18 | 热分析股份有限责任公司 | Refrigeration device |
| CN101688697A (en) * | 2007-04-24 | 2010-03-31 | 开利公司 | Refrigerant vapor compression system with dual economizer circuits |
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