WO2021143550A1 - Bi-directional first-type single working medium combined cycle - Google Patents

Abstract

The present invention relates to the technical field of thermodynamics, refrigeration and heat pumps. Provided is a bi-directional first-type single working medium combined cycle. The bi-directional first-type single working medium combined cycle refers to a closed process consisting of nine processes carried out separately or jointly with a working medium consisting of M₁ kg and M₂ kg of working media, i.e., an endothermic vaporization process of M₁ kg working medium (12), an endothermic process of (M₁ + M₂) kg working medium (23), a pressure increasing process of (M₁ + M₂) kg working medium (34), an endothermic process of (M₁ + M₂) kg working medium (45), a pressure reduction process of (M₁ + M₂) kg working medium (56), an exothermic process of (M₁ + M₂) kg working medium (67), a pressure reduction process of M₂ kg working medium (72), an exothermic condensation process of M₁ kg working medium (78), and a pressure reduction process of M₁ kg working medium (81).

Description

Bidirectional first type single working fluid combined cycle Technical field:

The invention belongs to the technical fields of thermodynamics, refrigeration and heat pumps.

Background technique:

Cold, heat, and power requirements are common in human life and production; people often need to use high-temperature heat to achieve cooling, heating, or conversion into power. In the process of achieving the above objectives, it will face many constraints, including the type, grade and quantity of energy, the type, grade and quantity of user requirements, the ambient temperature, the type of working medium, the process, structure and manufacturing cost of the equipment Wait.

Absorption heat pump technology uses high-temperature heat load to drive heating or cooling; however, due to the nature of the working medium, its application field and scope are greatly restricted. The mechanical compression heat pump technology has a certain degree of flexibility, but in many cases it is difficult to achieve efficient use of heat energy. At the same time, the two technologies have common shortcomings-they cannot convert heat energy to mechanical energy at the same time as heating or cooling.

In terms of the common working principle, that is, the thermodynamic cycle: (1) Reverse Rankine cycle, the temperature difference between the working fluid and the heated medium is large when the heat is released by condensation, and the pressure reduction process of the condensate has a large loss and has a negative impact on refrigeration. , In supercritical conditions, the compressor is expensive to manufacture and the safety is reduced; it has the advantage of low temperature phase change heat absorption. (2) Brayton cycle, the heat absorption in the low temperature process has a large temperature difference loss, and the performance index is ignored; when facing a variable temperature heat source, it has the advantages of variable temperature endothermic and variable temperature exotherm.

In the basic theoretical system of thermal science, the creation, development and application of thermal cycles will play a major role in energy utilization and will actively promote social progress and productivity development. The invention aims at using high-temperature heat sources for heating or cooling, and also takes into account the use of power driving at the same time, taking into account power requirements, and proposes to effectively utilize the temperature difference between the high-temperature heat source and the heated medium or to effectively use the temperature difference between the high-temperature heat source and the environment Utilize, a two-way first type single working fluid combined cycle with a simple process.

Summary of the invention:

The main purpose of the present invention is to provide a two-way first-type single working fluid combined cycle. The specific content of the invention is described as follows:

1. The two-way type I single working fluid 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 boosting process 34, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 45, (M ₁ +M ₂ ) Kilogram working fluid depressurization process 56, (M ₁ +M ₂ ) kilogram working fluid heat release process 67, M ₂ kg working fluid depressurization process 72, M ₁ kg working fluid heat release and condensation process 78, M ₁ kg working fluid depressurization process Pressure process 81-the closed process of composition.

2. Two-way type I single working fluid combined cycle refers to _{ten processes that are composed of M 1} kilogram and M ₂ kilograms, respectively 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 endothermic process 45, (M ₁ +M ₂ ) Pressure reduction process of kilogram working fluid 56, M ₂ kilogram working fluid pressure reduction process 67, M ₂ kilogram working fluid exothermic process over 78, M ₂ kilogram working fluid pressure reduction process 82, M ₁ kg working fluid exothermic condensation process 69, M ₁ kg of working fluid pressure reduction process 91-a closed process of composition.

3. The two-way type I single working fluid combined cycle refers to the working fluid composed of M ₁ kg and M ₂ kg, and ten processes that are carried out separately 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 endothermic process 45, (M ₁ +M ₂ ) Pressure reduction process of kilogram working fluid 56, M ₂ kilogram working fluid heat release process 67, M ₂ kilogram working fluid pressure reduction process 72, M ₁ kilogram working fluid pressure reduction process 68, M ₁ kg working fluid exothermic and condensation process 89, M ₁ kg of working fluid pressure reduction process 91-a closed process of composition.

4. The two-way type I single working fluid combined cycle refers _{to the twelve processes that are composed of M 1} kg and M ₂ kg, which are carried out separately or jointly-the endothermic vaporization process of _{M 1 kg working fluid 12, (} M ₁ +M ₂ ) Kilogram working fluid endothermic process 23, X kilogram working fluid boosting process 35, X kilogram working fluid endothermic process 56, (M ₁ +M ₂ -X) kg working fluid endothermic process 34, ( M ₁ +M ₂ -X) Kilogram working fluid boosting process 46, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 67, (M ₁ +M ₂ ) Kilogram working fluid depressurizing process 78, (M ₁ + M ₂ ) Kilogram working fluid exothermic process 89, M ₂ kilogram working fluid depressurization process 92, M ₁ kilogram working fluid exothermic condensation process 9c, M ₁ kg working fluid depressurization process c1—composed closed process.

5. Two-way type I single working fluid combined cycle refers _{to the 13 processes that are composed of M 1} kilogram and M ₂ kilograms, respectively or jointly-M ₁ kilogram of working fluid endothermic vaporization process 12, ( M ₁ +M ₂ ) kg working fluid endothermic process 23, M ₂ kg working fluid pressure increasing process 34, M ₂ kg working fluid heat absorption process 45, M ₂ kg working fluid depressurizing process 56, M ₂ kg working fluid releasing process Thermal process 67, M ₂ kg working fluid depressurization process 72, M ₁ kg working fluid heat absorption process 38, M ₁ kg working fluid boost process 89, M ₁ kg working fluid heat absorption process 9c, M ₁ kg working fluid depressurization process Pressure process cd, M ₁ kg working fluid exothermic condensation process de, M ₁ kg working fluid depressurization process e1-a closed process of composition.

6. The two-way type I single working fluid combined cycle refers _{to the eleven processes that are composed of M 1} kg and M ₂ kg, respectively or jointly-the endothermic vaporization process of _{M 1 kg working fluid 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 endothermic process 45, (M ₁ +M ₂₎ )Kg working fluid depressurization process 56, (M ₁ +M ₂ )Kg working fluid exothermic process 67, M ₂ kg working fluid depressurizing process 7f, M ₂ kg working fluid endothermic process fg, M ₂ kg working fluid depressurization process Pressure process g2, M ₁ kg working fluid exothermic condensation process 78, M ₁ kg working fluid depressurization process 81-a closed process composed of.

7. The two-way type I single working fluid combined cycle refers _{to the twelve processes that are composed of M 1} kg and M ₂ kg, respectively or jointly-the endothermic vaporization process of _{M 1 kg working fluid 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 endothermic process 45, (M ₁ +M ₂₎ )Kg working fluid depressurization process 56, M ₂ kg working fluid depressurizing process 67, M ₂ kg working fluid exothermic process over 78, M ₂ kg working fluid depressurizing process 8f, M ₂ kg working fluid endothermic process fg, M ₂ kg working fluid pressure reduction process g2, M ₁ kg working fluid exothermic condensation process 69, M ₁ kg working fluid pressure reduction process 91-a closed process composed of.

8. Two-way type I single working fluid combined cycle refers _{to the twelve 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 endothermic process 45, (M ₁ +M ₂₎ )Kg working fluid depressurization process 56, M ₂ kg working fluid exothermic process 67, M ₂ kg working fluid depressurizing process 7f, M ₂ kg working fluid endothermic process fg, M ₂ kg working fluid depressurizing process g2, M ₁ kg of working fluid depressurization process 68, M ₁ kg of working fluid exothermic and condense 89, M ₁ kg of working fluid depressurization process 91-a closed process composed of.

9. The two-way type I single working fluid combined cycle refers _{to the fourteen 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, X kilogram working fluid boosting process 35, X kilogram working fluid endothermic process 56, (M ₁ +M ₂ -X) kg working fluid endothermic process 34, ( M ₁ +M ₂ -X) Kilogram working fluid boosting process 46, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 67, (M ₁ +M ₂ ) Kilogram working fluid depressurizing process 78, (M ₁ + M ₂ ) Kilogram working fluid exothermic process 89, M ₂ kilogram working fluid pressure reduction process 9f, M ₂ kilogram working fluid endothermic process fg, M ₂ kilogram working fluid pressure reduction process g2, M ₁ kg working fluid exothermic condensation process 9c, M ₁ kg of working fluid depressurization process c1-the closed process of composition.

10. The two-way type I single working fluid combined cycle refers _{to the fifteen 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 working fluid endothermic process 23, M ₂ kg working fluid pressure increasing process 34, M ₂ kg working fluid heat absorption process 45, M ₂ kg working fluid depressurizing process 56, M ₂ kg working fluid releasing process Thermal process 67, M ₂ kg working fluid depressurization process 7f, M ₂ kg working fluid endothermic process fg, M ₂ kg working fluid depressurization process g2, M ₁ kg working fluid endothermic process 38, M ₁ kg working fluid rise Pressure process 89, M ₁ kg working fluid endothermic process 9c, M ₁ kg working fluid depressurization process cd, M ₁ kg working fluid exothermic condensation process de, M ₁ kg working fluid depressurization process e1——composition closed process .

11. The two-way type I single working fluid combined cycle refers _{to the 13 processes that are composed of M 1} kg and M ₂ kg, which are carried out separately or jointly-the endothermic vaporization process of _{M 1 kg working fluid 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 endothermic process 45, (M ₁ +M ₂₎ ) Kg working fluid depressurization process 56, (M ₁ +M ₂ ) kg working fluid heat release process 67, (M ₂ -M) kg working fluid depressurization process 7t, M ₂ kg working fluid depressurization process t2, (M ₁ + M) kg refrigerant radiates heat and condenses process 7r, M kg working fluid depressurisation rs, M kg refrigerant absorbs heat of vaporization process st, M ₁ kg refrigerant exothermic process r8, M ₁ kg refrigerant depressurization 81—The closing process of composition.

12. The two-way type I single working fluid combined cycle refers _{to the fourteen 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 endothermic process 45, (M ₁ +M ₂₎ )Kg working fluid depressurization process 56, (M ₂ -M) kg working fluid depressurization process 67, (M ₂ -M) kg working fluid exothermic over 78, (M ₂ -M) kg working fluid depressurization process 8t , M ₂ kg working fluid depressurization process t2, (M ₁ +M) kg working fluid exothermic condensation process 6r, M kg working fluid depressurization process rs, M kg working fluid endothermic vaporization process st, M ₁ kg working fluid Exothermic process r9, M ₁ kg of working fluid depressurization process 91-a closed process of composition.

13. The two-way type I single working fluid combined cycle refers _{to the fourteen processes that are composed of M 1} kg and M ₂ kg, respectively or together-the endothermic vaporization process of _{M 1 kg working fluid 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 endothermic process 45, (M ₁ +M ₂₎ ) Kg working fluid depressurization process 56, (M ₂ -M) Kg working fluid heat release process 67, (M ₂ -M) Kg depressurization process 7t, M ₂ kg working fluid depressurization process t2, (M ₁ +M ) Kilogram working fluid depressurization process 68, (M ₁ +M) kilogram working fluid exothermic and condense 8r, M kg working fluid depressurization process rs, M kg working fluid endothermic vaporization process st, M ₁ kg working fluid releases heat Process r9, M ₁ kg of working fluid depressurization process 91-a closed process of composition.

14. The two-way type I single working fluid combined cycle refers _{to the sixteen processes that are composed of M 1} kg and M ₂ kg, respectively or jointly-the endothermic vaporization process of _{M 1 kg working fluid 12, (} M ₁ +M ₂ ) Kilogram working fluid endothermic process 23, X kilogram working fluid boosting process 35, X kilogram working fluid endothermic process 56, (M ₁ +M ₂ -X) kg working fluid endothermic process 34, ( M ₁ +M ₂ -X) Kilogram working fluid boosting process 46, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 67, (M ₁ +M ₂ ) Kilogram working fluid depressurizing process 78, (M ₁ + M ₂ ) kg working fluid exothermic process 89, (M ₂ -M) kg pressure reduction process 9t, M ₂ kg working fluid pressure reduction process t2, (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.

15. The two-way type I single working fluid combined cycle refers _{to the seventeen processes that are composed of M 1} kg and M ₂ kg, respectively or jointly-the M ₁ kg working fluid endothermic vaporization process 12, ( M ₁ +M ₂ ) Kilogram working fluid endothermic process 23, (M ₂ -M) Kilogram working fluid boost process 34, (M ₂ -M) Kilogram working fluid heat absorption process 45, (M ₂ -M) Kilogram working fluid Pressure reduction process 56, (M ₂ -M) kg working fluid exothermic process 67, (M ₂ -M) kg pressure reduction process 7t, M ₂ kg working fluid pressure reduction process t2, (M ₁ +M) kg working fluid Endothermic process 38, (M ₁ +M) kg working fluid boost process 89, (M ₁ +M) kg working fluid endothermic process 9c, (M ₁ +M) kg working fluid depressurization process cd, (M ₁ +M) kg working fluid exothermic condensation process dr, M kg working fluid depressurization process rs, M kg working fluid endothermic vaporization process st, M ₁ kg working fluid exothermic process re, M ₁ kg working fluid depressurization process e1——The closing process of composition.

Description of the drawings:

Fig. 1/15 is an example diagram of the first principle flow chart of the two-way first type single working fluid combined cycle provided by the present invention.

Fig. 2/15 is an example diagram of the second principle flow chart of the two-way first type single working fluid combined cycle provided by the present invention.

Fig. 3/15 is an example diagram of the third principle flow chart of the bidirectional first type single working fluid combined cycle provided by the present invention.

Fig. 4/15 is an example diagram of the fourth principle flow chart of the two-way first type single working fluid combined cycle provided by the present invention.

Fig. 5/15 is an example diagram of the fifth principle flow chart of the two-way first type single working fluid combined cycle provided by the present invention.

Fig. 6/15 is an example diagram of the sixth principle flow chart of the bidirectional first type single working fluid combined cycle provided by the present invention.

Fig. 7/15 is an example diagram of the seventh principle flow chart of the bidirectional first type single working fluid combined cycle provided by the present invention.

Fig. 8/15 is an example diagram of the eighth principle flow chart of the bidirectional first type single working fluid combined cycle provided by the present invention.

Fig. 9/15 is an example diagram of the ninth principle flow chart of the two-way first type single working fluid combined cycle provided by the present invention.

Fig. 10/15 is an example diagram of the tenth principle flow chart of the two-way first type single working fluid combined cycle provided by the present invention.

Fig. 11/15 is an example diagram of the 11th principle flow chart of the bidirectional first type single working fluid combined cycle provided by the present invention.

Figure 12/15 is an example diagram of the twelfth principle flow chart of the two-way first type single working fluid combined cycle provided by the present invention.

Fig. 13/15 is an example diagram of the 13th principle flow chart of the two-way first type single working fluid combined cycle provided by the present invention.

Fig. 14/15 is an example diagram of the fourteenth principle flow chart of the two-way first type single working fluid combined cycle provided by the present invention.

Fig. 15/15 is an example diagram of the 15th principle flow chart of the two-way first type single working fluid combined cycle provided by the present invention.

Detailed ways:

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.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 1/15 is carried out as follows:

(1) From the perspective of the cycle process:

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 )Kg working fluid endothermic heating process 45, (M ₁ +M ₂ )Kg working fluid depressurization expansion 56, (M ₁ +M ₂ )Kg working fluid exothermic cooling process 67, M ₂ kg working fluid Pressure-reducing expansion process 72, M ₁ kg working fluid exothermic cooling, liquefaction and condensate exothermic cooling process 78, M ₁ kg working fluid condensate pressure reduction process 81-a total of 9 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which 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; (M ₁ +M ₂ ) the heat absorption of 45 kilograms of working fluid is provided by the high-temperature heat source , Or the heat absorption in the high temperature section is provided by the high temperature heat source, and the heat absorption in the low temperature section _{is satisfied by the initial heat release of (M 1} +M ₂ ) kg of working fluid in the 67 process (regeneration).

②Exothermic process——Generally, (M ₁ +M ₂ ) kilograms of working fluid is used for 67 process exothermic heat for the heated medium, or at the same time for 45 process low temperature section endothermic demand (recovery) and heated Medium heat demand; M ₁ kilogram of working fluid for 78 process heat release is mainly used for (M ₁ +M ₂ ) kilogram of working fluid to complete 23 process heat demand, or it is used for the heated medium and (M ₁ +M ₂ ) kilogram at the same time The working fluid completes the heat demand of 23 processes.

③Energy conversion process-(M ₁ + M ₂ ) kilogram of working fluid for 34 processes are generally completed by compressors, requiring mechanical energy; (M ₁ + M ₂ ) kilogram of working fluid for 56 processes and M ₂ kilograms of working fluid for 72 The process is generally completed by an expander and provides 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 used for the pressure boosting work, or the pressure-reducing expansion work is greater than the pressure boosting consumption External mechanical energy is output at the same time when working, or external mechanical energy is input at the same time when the pressure-reducing expansion work is less than the pressure-boosting power consumption, forming a two-way first-type single working substance combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 2/15 is performed as follows:

(1) From the perspective of the cycle process:

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 )Kg working fluid endothermic heating process 45, (M ₁ +M ₂ )Kg working fluid depressurizing expansion process 56, M ₂ kg working fluid depressurizing expansion process 67, M ₂ kg working fluid exothermic cooling process 78, M ₂ kg of working fluid depressurization expansion process 82, M ₁ kg of working fluid exothermic cooling, liquefaction and condensate exothermic cooling process 69, M ₁ kg of working fluid condensate depressurization process 91-a total of 10 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which 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; (M ₁ +M ₂ ) the heat absorption of 45 kilograms of working fluid is provided by the high-temperature heat source , Or the heat absorption in the high temperature section is provided by the high temperature heat source, and the heat absorption in the low temperature section is satisfied by the initial heat release of the 69 process of _{M 1 kg of working fluid (regeneration).}

②Exothermic process-Generally, M ₂ kg of working fluid carries out the heat release of the 78 process, and M ₁ kilogram of working fluid carries out the heat of the 69 process. The high temperature part is generally used for the heated medium or at the same time for the low temperature of the 45 process. Section endothermic demand (return heat) and the heat demand of the heated medium, the low temperature part is generally used for (M ₁ +M ₂ ) kilograms of working fluid to carry out the heat demand of the 23 process.

③Energy conversion process-(M ₁ + M ₂ ) kilogram of working fluid for 34 processes are generally completed by compressors, requiring mechanical energy; (M ₁ + M ₂ ) kilogram of working fluid for 56 processes and M ₂ kilograms of working fluid for 67 The two processes of 82 and 82 are completed by the expander and provide mechanical energy _{. The pressure reduction process of M 1} kg of working fluid 91 can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is used for the pressure boosting work, or the pressure-reducing expansion work is greater than When boosting power consumption, mechanical energy is output at the same time, or when the pressure-reducing expansion work is less than the boosting power consumption, mechanical energy is input from the outside at the same time, forming a two-way first-type single-working-substance combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 3/15 is performed as follows:

(1) From the perspective of the cycle process:

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₎ kg refrigerant endothermic heating process _{45, (M 1 + M 2} ) kg refrigerant expansion process down 56, M ₂ kg refrigerant heat cooling process 67, M ₂ kg refrigerant expansion process down 72, M ₁ kg of working fluid depressurization expansion process 68, M ₁ kg of working fluid exothermic cooling, liquefaction and condensate exothermic cooling process 89, M ₁ kg of working fluid condensate depressurization process 91-a total of 10 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which 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; (M ₁ +M ₂ ) the heat absorption of 45 kilograms of working fluid is provided by the high-temperature heat source , Or the heat absorption in the high temperature section is provided by the high temperature heat source, and the heat absorption in the low temperature section is satisfied by the initial heat release of the 67 process _{by M 2 kg of working fluid (regeneration).}

②Exothermic process——Generally, M ₂ kg of working fluid carries out the exothermic process of 67, and M ₁ kilogram of working fluid carries out the exothermic process of 89. The high temperature part is generally used for the heated medium or at the same time for the low temperature of the 45 process. Section endothermic demand (return heat) and the heat demand of the heated medium, the low temperature part is generally used for (M ₁ +M ₂ ) kilograms of working fluid to carry out the heat demand of the 23 process.

③Energy conversion process-(M ₁ +M ₂ ) kilogram of working fluid for 34 processes are generally completed by compressors, requiring mechanical energy; (M ₁ +M ₂ ) kilogram of working fluid for 56 processes, M ₁ kilogram of working fluid for 68 processes The process and the M ₂ kg working fluid 72 process is completed by the expander and provides mechanical energy _{. The pressure reduction process 91 of the M 1} kg working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is used to boost the pressure, or When the buck expansion work is greater than the boost power consumption, mechanical energy is output at the same time, or when the buck expansion work is less than the boost power consumption, mechanical energy is input from the outside at the same time, forming a two-way first-type single working substance combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 4/15 is performed as follows:

(1) From the perspective of the cycle process:

Working medium: M ₁ kg working fluid endothermic vaporization process 12, (M ₁ +M ₂ ) kg working fluid endothermic heating process 23, X kg working fluid pressure rising process 35, X kg working fluid endothermic heating process 56, (M ₁ +M ₂ -X) Kilogram of working fluid endothermic heating process 34, (M ₁ +M ₂ -X) Kilogram of working fluid boosting process 46, (M ₁ +M ₂ ) Kilogram working fluid endothermic Heating process 67, (M ₁ +M ₂ ) kg working fluid depressurizing expansion process 78, (M ₁ +M ₂ ) kg working fluid exothermic cooling process 89, M ₂ kg working fluid depressurizing expansion process 92, M ₁ kg Working fluid heat release and cooling, liquefaction and condensate heat _{release and cooling process 9c, M 1} kg working fluid condensate pressure reduction process c1-a total of 12 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used For obtaining low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of which is satisfied by regenerative heat; (M ₁ +M ₂ -X) kilogram of working fluid for 34 process heat absorption, available 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; X kg of working fluid carries out 56 process heat absorption and (M ₁ +M ₂ ) kg of work The endothermic heat of the 67 process is provided by the high-temperature heat source, or the endothermic heat of the high-temperature section is provided by the high-temperature heat source, and the endothermic heat of the low-temperature section _{is satisfied by the initial heat release of (M 1} +M ₂ ) kg of the working fluid in the 89 process ( Back to heat).

②Exothermic process——Generally, (M ₁ +M ₂ ) kilogram of working fluid carries out the heat release of 89 process, and M ₁ kilogram of working fluid carries out the heat release of 9c process. The high temperature part is generally used for the heated medium or at the same time. In the low-temperature section of the 56 and 67 processes, the heat absorption demand (regeneration) and the heat demand of the heated medium are generally used for (M ₁ +M ₂ ) kilograms of working fluid for 23 processes and (M ₁ +M ₂ -X) Kilogram of working fluid is required for 34 processes.

③Energy conversion process-35 process for X kilogram working medium and 46 process for (M ₁ +M ₂ -X) kilogram working medium are generally completed by compressors, which require mechanical energy; (M ₁ +M ₂ ) kilogram working medium for The 78 process and the M ₂ kilogram working medium carry on to the 92 process by the expander to complete and provide mechanical energy, the M ₁ kilogram working medium depressurization process c1 can be completed by the turbine or the throttle valve; the depressurization expansion work is used to boost the pressure and consume the work, Or when the buck expansion work is greater than the boost power consumption, mechanical energy is output at the same time, or when the buck expansion work is less than the boost power consumption, mechanical energy is input from the outside at the same time, forming a two-way type I single working fluid combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 5/15 is carried out as follows:

(1) From the perspective of the cycle process:

Working medium: M ₁ kg working fluid endothermic vaporization process 12, (M ₁ +M ₂ ) kg working fluid endothermic heating process 23, M ₂ kg working fluid pressure increasing process 34, M ₂ kg working fluid endothermic Heating process 45, M ₂ kg working fluid depressurizing expansion process 56, M ₂ kg working fluid exothermic and cooling over 67, M ₂ kg working fluid depressurizing expansion process 72, M ₁ kg working fluid endothermic heating process 38, M ₁ kg refrigerant boost heating process 89, M ₁ kg refrigerant endothermic heating process 9c, M ₁ kg refrigerant expansion process down cd, M ₁ kg cooling heat refrigerant, heat liquefaction and cooling process condensate de, M ₁ kg of working fluid condensate depressurization process e1-a total of 13 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used To obtain low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of which is satisfied by regenerative heat; M ₁ kg of working fluid for 38 process heat demand can be satisfied by regenerative; M ₁ The heat absorption of the kilogram of working fluid for the 9c process is provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source, and the heat absorption of the low temperature section is satisfied by the initial heat release of the de process of _{M 1 kilogram of working fluid (regeneration)} ; _{The endothermic heat of the 45 process of M 2} kg of working fluid is provided by the high temperature heat source, or the endothermic heat of the high temperature section is provided by the high temperature heat source, and the endothermic heat of the low temperature section is satisfied by the initial heat release of the 67 process of _{M 2 kg of working fluid (} Back to heat).

②Exothermic process-M ₂ kg of working fluid carries out the exothermic process of 67, and M ₁ kilogram of working fluid carries out the exothermic process of de heat. The high temperature part is generally used for the heated medium or the low temperature section of the high temperature endothermic process at the same time. The endothermic demand (regeneration) and the heat demand of the heated medium, the low temperature part is generally used for the heat demand of (M ₁ +M ₂ ) kg of working fluid for 23 processes and M ₁ kg of working fluid for 38 processes.

③Energy conversion process-M ₁ kg of working fluid for 89 process and M ₂ kg of working fluid for 34 process are generally completed by compressors, requiring mechanical energy; M ₂ kg of working fluid for 56 and 72 processes, and M ₁ kg of working fluid The cd process is carried out by the expander and the mechanical energy is provided _{. The pressure reduction process e1 of M 1} kg of working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is used for the pressure boosting work, or the pressure-reducing expansion work When the power consumption is greater than the boost power consumption, mechanical energy is output at the same time, or when the pressure-reducing expansion work is less than the boost power consumption, mechanical energy is input from the outside at the same time, forming a two-way type I single working fluid combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 6/15 is performed as follows:

(1) From the perspective of the cycle process:

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 )Kg working fluid endothermic heating process 45, (M ₁ +M ₂ )Kg working fluid depressurization expansion 56, (M ₁ +M ₂ )Kg working fluid exothermic cooling process 67, M ₂ kg working fluid Pressure reduction expansion process 7f, M ₂ kg working fluid endothermic heating process fg, M ₂ kg working fluid pressure reduction expansion process g2, M ₁ kg working fluid exothermic cooling, liquefaction and condensate cooling process 78, M ₁ kg Working fluid condensate depressurization process 81-a total of 11 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used To obtain low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of them are satisfied by regenerative heat; _{the heat absorption of M 2} kg working fluid in the fg process can be satisfied by regenerative heat, or External heat source meets; (M ₁ +M ₂ ) the heat absorption of 45 kilograms of working fluid is provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source, and the heat absorption of the low temperature section is provided by (M ₁ +M ₂ ) Kilogram of working fluid performs the initial heat release of the 67 process to meet (regeneration).

②Exothermic process——Generally, (M ₁ +M ₂ ) kilograms of working fluid is used for 67 process exothermic heat for the heated medium, or at the same time for 45 process low temperature section endothermic demand (recovery) and heated Medium heat demand; the heat release of M ₁ kg of working fluid for 78 process is mainly used for (M ₁ +M ₂ ) kg of working fluid to complete the heat demand of 23 process, M ₂ kg of working fluid for fg process heat demand, or at the same time The heated medium, (M ₁ +M ₂ ) kilograms of working fluid completes the heat demand of the 23 process and the M ₂ kilograms of working fluid performs the heat demand of the fg process.

③Energy conversion process-(M ₁ + M ₂ ) kilogram of working fluid for 34 processes are generally completed by compressors, requiring mechanical energy; (M ₁ + M ₂ ) kilogram of working fluid for 56 processes and M ₂ kilograms of working fluid for 7f The two processes of 82 and 82 are generally completed by an expander and provide mechanical energy. The _{process of 81 with M 1} kg of working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is used for the pressure boosting work, or the pressure-reducing expansion work is greater than When boosting power consumption, mechanical energy is output at the same time, or when the pressure-reducing expansion work is less than the boosting power consumption, mechanical energy is input from the outside at the same time, forming a two-way first-type single-working-substance combined cycle.

The example of the two-way first type single working fluid combined cycle in the T-s diagram shown in Fig. 7/15 is carried out as follows:

(1) From the perspective of the cycle process:

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 )Kg working fluid endothermic heating process 45, (M ₁ +M ₂ )Kg working fluid depressurizing expansion process 56, M ₂ kg working fluid depressurizing expansion process 67, M ₂ kg working fluid exothermic cooling process 78, M ₂ kg working fluid depressurization expansion process 8f, M ₂ kg working fluid endothermic heating process fg, M ₂ kg working fluid depressurization expansion process g2, M ₁ kg working fluid exothermic cooling, liquefaction and condensate heat release Cooling process 69, M ₁ kg of working fluid condensate pressure reduction process 91-a total of 12 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used To obtain low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of them are satisfied by regenerative heat; _{the heat absorption of M 2} kg working fluid in the fg process can be satisfied by regenerative heat or External heat source meets; (M ₁ +M ₂ ) the heat absorption of 45 kilograms of working fluid is provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source, and the heat absorption of the low temperature section is carried out _{by the M 1 kilogram working medium} The initial exotherm of the 69 process is satisfied (regeneration).

②Exothermic process-Generally, M ₂ kg of working fluid carries out the heat release of the 78 process, and M ₁ kilogram of working fluid carries out the heat of the 69 process. The high temperature part is generally used for the heated medium or at the same time for the low temperature of the 45 process. Section endothermic demand (regeneration) and heated medium, the low temperature part is generally used for M ₂ kilogram working fluid for fg process and (M ₁ + M ₂ ) kilogram working fluid for 23 process heat demand.

③Energy conversion process-(M ₁ + M ₂ ) kilogram of working fluid for 34 processes are generally completed by compressors, requiring mechanical energy; (M ₁ + M ₂ ) kilogram of working fluid for 56 processes and M ₂ kilograms of working fluid for 67 , 8f, g2 three process is done by the expander and provides mechanical energy, M ₁ kilogram depressurisation of the working fluid 91 may be a turbine or a throttle valve is completed; expansion work for the buck boost power consumption, or for expanding the buck When the work is greater than the boosting power consumption, mechanical energy is output at the same time, or when the pressure-reducing expansion work is less than the boosting power consumption, the mechanical energy is input from the outside at the same time, forming a two-way first-type single-working-substance combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 8/15 is carried out as follows:

(1) From the perspective of the cycle process:

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₎ kg refrigerant endothermic heating process _{45, (M 1 + M 2} ) kg refrigerant expansion process down 56, M ₂ kg refrigerant heat cooling process 67, M ₂ kg refrigerant expansion process down 7f, M ₂ kg working fluid endothermic heating process fg, M ₂ kg working fluid depressurization expansion process g2, M ₁ kg working fluid depressurization expansion process 68, M ₁ kg working fluid exothermic cooling, liquefaction and condensate heat release Cooling process 89, M ₁ kg of working fluid condensate pressure reduction process 91-a total of 12 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used To obtain low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of them are satisfied by regenerative heat; _{the heat absorption of M 2} kg working fluid in the fg process can be satisfied by regenerative heat or External heat source meets; (M ₁ +M ₂ ) the heat absorption of 45 kilograms of working fluid is provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source, and the heat absorption of the low temperature section is performed by the M ₂ kilogram working medium 67 The initial exotherm of the process is satisfied (regeneration).

②Exothermic process——Generally, M ₂ kg of working fluid carries out the exothermic process of 67, and M ₁ kilogram of working fluid carries out the exothermic process of 89. The high temperature part is generally used for the heated medium or at the same time for the low temperature of the 45 process. Section endothermic demand (regeneration) and heated medium, the low temperature part is generally used for M ₂ kilogram working fluid for fg process and (M ₁ + M ₂ ) kilogram working fluid for 23 process heat demand.

③Energy conversion process-(M ₁ +M ₂ ) kilogram of working fluid for 34 processes are generally completed by compressors, requiring mechanical energy; (M ₁ +M ₂ ) kilogram of working fluid for 56 processes, and M ₁ kilogram of working fluid for 68 The process, as well as the _{7f and g2 processes of the M 2} kg working fluid, are completed by the expander and provide mechanical energy; _{the pressure reduction process 91 of the M 1} kg working fluid can be completed by a turbine or a throttle valve; the pressure reduction expansion work is used to increase When pressure consumption, or when the pressure-reducing expansion work is greater than the boosting power consumption, mechanical energy is output at the same time, or when the pressure-reducing expansion work is less than the boosting power consumption, mechanical energy is input from the outside at the same time, forming a two-way type 1 single working fluid combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 9/15 is carried out as follows:

(1) From the perspective of the cycle process:

Working medium: M ₁ kg working fluid endothermic vaporization process 12, (M ₁ +M ₂ ) kg working fluid endothermic heating process 23, X kg working fluid pressure rising process 35, X kg working fluid endothermic heating process 56, (M ₁ +M ₂ -X) Kilogram of working fluid endothermic heating process 34, (M ₁ +M ₂ -X) Kilogram of working fluid boosting process 46, (M ₁ +M ₂ ) Kilogram working fluid endothermic Heating process 67, (M ₁ +M ₂ ) kg working fluid depressurizing expansion process 78, (M ₁ +M ₂ ) kg working fluid exothermic cooling process 89, M ₂ kg working fluid depressurizing expansion process 9f, M ₂ kg Working fluid endothermic heating process fg, M ₂ kg working fluid depressurization and expansion process g2, M ₁ kg working fluid exothermic cooling, liquefaction and condensate exothermic cooling process 9c, M ₁ kg working fluid condensate depressurization process c1— -A total of 14 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used To obtain low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of them are satisfied by regenerative heat; _{the heat absorption of M 2} kg working fluid in the fg process can be satisfied by regenerative heat or External heat source to meet; (M ₁ +M ₂ -X) the endothermic process of 34 kilograms of working fluid can be used to obtain low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by reheating, or all Regeneration to meet; X kilograms of working fluid for 56 processes and (M ₁ +M ₂ ) kilograms of working fluid for 67 processes are provided by a high-temperature heat source, or the heat absorption of a high-temperature section is provided by a high-temperature heat source, and a low-temperature The endotherm of the section is _{satisfied by (M 1} +M ₂ ) kg of working fluid for the initial heat release of the 89 process (regeneration).

②Exothermic process——Generally, (M ₁ +M ₂ ) kilogram of working fluid carries out the heat release of 89 process, and M ₁ kilogram of working fluid carries out the heat release of 9c process. The high temperature part is generally used for the heated medium or at the same time. In the low-temperature section of the 56 and 67 processes, the heat absorption demand (regeneration) and the heated medium are generally used for the M ₂ kg working fluid for the fg process, (M ₁ + M ₂ ) kg working fluid for the 23 process and (M ₁ +M ₂ -X) The heat demand of 34 processes with kilograms of working fluid.

③Energy conversion process-35 process for X kilogram working medium and 46 process for (M ₁ +M ₂ -X) kilogram working medium are generally completed by compressors, which require mechanical energy; (M ₁ +M ₂ ) kilogram working medium for The 78 process and the M ₂ kilogram working fluid for the 9f and g2 processes are completed by the expander and provide mechanical energy _{. The pressure reduction process c1 of the M 1} kilogram working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is used to boost the pressure When the power consumption is greater than the boosting power consumption, or when the pressure-reducing expansion work is greater than the boosting power consumption, mechanical energy is output at the same time, or the mechanical energy is input from the outside at the same time when the pressure-reducing expansion work is less than the boosting power consumption, forming a two-way type 1 single working fluid combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 10/15 is performed as follows:

(1) From the perspective of the cycle process:

Working medium: M ₁ kg working fluid endothermic vaporization process 12, (M ₁ +M ₂ ) kg working fluid endothermic heating process 23, M ₂ kg working fluid pressure increasing process 34, M ₂ kg working fluid endothermic Heating process 45, M ₂ kg working fluid depressurizing expansion process 56, M ₂ kg working fluid exothermic and cooling over 67, M ₂ kg working fluid depressurizing expansion process f2, M ₂ kg working fluid endothermic heating process fg, M ₂ Pressure-reducing expansion process of kilogram working fluid g2, M ₁ kilogram working fluid endothermic heating process 38, M ₁ kilogram working fluid pressure increasing process 89, M ₁ kilogram working fluid endothermic heating process 9c, M ₁ kg working fluid pressure-reducing expansion Process cd, M ₁ kg working fluid exothermic cooling, liquefaction and condensate cooling process de, M ₁ kg working fluid condensate pressure reduction process e1-a total of 15 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used To obtain low-temperature heat load, or partly used to obtain low-temperature heat load and partly met by regenerative heat, or all are met by regenerative heat; M ₁ kg of working fluid for 38 process heat demand, and M ₂ kg of working fluid for fg The heat absorption of the process can be satisfied by the heat recovery or by the external heat source; _{the heat absorption of the 9c process with M 1} kg of working fluid is provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source and the absorption of the low temperature section The heat is satisfied by the initial heat release of the de process _{by M 1 kg of working fluid (recovery); the endothermic heat of M 2} kg of working fluid in the 45 process is provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source, and the low temperature The endotherm of the section is satisfied by the initial exotherm of the 67 process with _{M 2 kg of working fluid (regeneration).}

②Exothermic process-M ₂ kg of working fluid carries out the exothermic process of 67, and M ₁ kilogram of working fluid carries out the exothermic process of de heat. The high temperature part is generally used for the heated medium or the low temperature section of the high temperature endothermic process at the same time. The heat absorption demand (regeneration) and the heated medium, the low temperature part is generally used for M ₂ kg of working fluid for fg process, (M ₁ + M ₂ ) kg of working fluid for 23 processes, and M ₁ kg of working fluid for 38 processes. need.

③Energy conversion process-M ₁ kg working medium for 89 process and M ₂ kg working medium for 34 process are generally completed by compressors, requiring mechanical energy; M ₂ kg working medium for 56, 7f, g2 three processes, and M ₁ The cd process of the kilogram working fluid is completed by the expander and provides mechanical energy _{. The pressure reduction process e1 of the 1} kilogram working fluid can be completed by a turbine or a throttle valve; the pressure-reducing expansion work is used for the pressure-increasing power consumption, or the pressure-reducing expansion When the work is greater than the boost power consumption, the mechanical energy is output at the same time, or when the buck expansion work is less than the boost power consumption, the mechanical energy is input from the outside at the same time, forming a two-way first-type single-working-substance combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 11/15 is performed as follows:

(1) From the perspective of the cycle process:

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 )Kg working fluid endothermic heating process 45, (M ₁ +M ₂ )Kg working fluid depressurization expansion 56, (M ₁ +M ₂ ) kg working fluid exothermic cooling process 67, (M ₂ -M ) Kg working fluid depressurization expansion process 7t, M ₂ Kg working fluid depressurization expansion process t2, (M ₁ +M) Kg working fluid exothermic cooling, liquefaction and condensate cooling process 7r, M kg working fluid depressurization Process rs, M kg working fluid endothermic, vaporization and overheating process st, M ₁ kg working fluid exothermic cooling, liquefaction and condensate cooling process r8, M ₁ kg working fluid condensate pressure reduction process 81-total 13 A process.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used For obtaining low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of which is satisfied by regenerative heat; the heat absorption of M kg working fluid in the st process is generally satisfied by regenerative heat; (M ₁ +M ₂ ) The heat absorption of 45 kilograms of working fluid is provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source, and the heat absorption of the low temperature section is performed by the (M ₁ +M ₂ ) kilogram working fluid for 67 processes The initial exotherm is satisfied (regeneration).

②Exothermic process——Generally, (M ₁ +M ₂ ) kilograms of working fluid is used for 67 process exothermic heat for the heated medium, or at the same time for 45 process low temperature section endothermic demand (recovery) and heated Medium heat demand; (M ₁ +M) kilogram of working fluid for the heat release of the 7r process, and M ₁ kilogram of working fluid condensate for the heat of the r8 process. The high temperature part is generally used for the heat demand of the heated medium, and the low temperature part is generally It is used for _{the heat demand of (M 1} +M ₂ ) kg of working fluid for 23 project and M kg of working fluid for st process.

③Energy conversion process-(M ₁ +M ₂ ) kg of working fluid for 34 processes are generally completed by compressors, requiring mechanical energy; (M ₁ +M ₂ ) kg of working fluid for 56 processes, (M ₂ -M) kg The working fluid performs the 7t process and the M ₂ kg working fluid for the t2 process, which is generally completed by an expander and provides mechanical energy. The M kg working fluid for the rs process and the M ₁ kg working fluid for the 81 process can be completed by a turbine or a throttle valve; The buck expansion work is used for boosting power consumption, or when the buck expansion work is greater than the boosting power consumption, mechanical energy is output at the same time, or when the buck expansion work is less than the boosting work consumption, mechanical energy is input from the outside at the same time, forming a two-way first Similar single working fluid combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 12/15 is performed as follows:

(1) From the perspective of the cycle process:

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 )Kg working fluid endothermic heating process 45, (M ₁ +M ₂ )Kg working fluid depressurization expansion process 56, (M ₂ -M)Kg working fluid depressurization expansion process 67, (M ₂ -M ) Kilogram working fluid exothermic cooling process 78, (M ₂ -M) kilogram working fluid pressure-reducing expansion process 8t, M ₂ kilogram working fluid pressure-reducing expansion process t2, (M ₁ +M) kilogram working fluid exothermic cooling and liquefaction And condensate exothermic cooling process 6r, M kg working fluid depressurization process rs, M kg working fluid endothermic, vaporization and overheating process st, M ₁ kg working fluid condensate exothermic cooling process r9, M ₁ kg working fluid condensation Liquid pressure reduction process 91-a total of 14 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used For obtaining low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of which is satisfied by regenerative heat; the heat absorption of M kg working fluid in the st process is generally satisfied by regenerative heat; (M ₁ +M ₂ ) The heat absorption of the 45 process kilogram of working fluid is provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source, and the heat absorption of the low temperature section is performed by the (M ₁ +M) kilogram working fluid for the 6r process. The initial exotherm is satisfied (regeneration).

②Exothermic process——Generally, (M ₂ -M) kilogram of working fluid carries out the heat release of 78 process, and (M ₁ +M) kilogram of working fluid carries out the heat release of 6r process. The high temperature part is generally used for the heated medium Or it is used for both the heat absorption demand (recovery) and the heat demand of the heated medium of the 45 process at the same time. The low temperature part is generally used for (M ₁ + M ₂ ) kilograms of working fluid for the heat demand of 23 processes and M kilograms of working fluid for The heat demand of the st process; M kilograms of working fluid condensate is used to heat the r9 process, which is generally used for (M ₁ +M ₂ ) kilograms of working fluid to heat the low temperature section of the 23 process.

③Energy conversion process-(M ₁ +M ₂ ) kilograms of working fluid for 34 processes are generally completed by compressors, requiring mechanical energy; (M ₁ +M ₂ ) kilograms of working fluid for 56 processes, (M ₂ -M) kilograms The working fluid carries out 67 and 8t two processes, and the M ₂ kilogram working medium carries on the t2 process, which is generally completed by the expander and provides mechanical energy. The M kilogram working medium carries on the rs process and the M ₁ kilogram working medium reduces the pressure 91 by the turbine or Throttle valve to complete; buck expansion work is used for boosting power consumption, or when the buck expansion work is greater than the boosting work, mechanical energy is output at the same time, or when the buck expansion work is less than the boosting work, it is also input from the outside Mechanical energy forms a two-way combined cycle of the first type single working substance.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 13/15 is carried out as follows:

(1) From the perspective of the cycle process:

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 endothermic heating process 45, (M ₁ +M ₂ ) Kilogram working fluid depressurization expansion process 56, (M ₂ -M) Kilogram working fluid exothermic cooling process 67, (M ₂ -M ) Kg working fluid depressurization expansion process 7t, M ₂ Kg working fluid depressurization expansion process t2, (M ₁ +M) Kg working fluid depressurization expansion process 68, (M ₁ +M) Kg working fluid exothermic cooling and liquefaction And the condensate exothermic cooling process 8r, M kg working fluid pressure reduction process rs, M kg working fluid heat absorption, vaporization and overheating process st, M ₁ kg working fluid condensate exothermic cooling process r9, M ₁ kg working fluid condensation Liquid pressure reduction process 91-a total of 14 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used For obtaining low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of which is satisfied by regenerative heat; the heat absorption of M kg working fluid in the st process is generally satisfied by regenerative heat; (M ₁ +M ₂ ) The heat absorption of 45 kilograms of working fluid is provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source, and the heat absorption of the low temperature section is performed by the (M ₂ -M) kilogram working fluid of 67 processes. The initial exotherm is satisfied (regeneration).

②Exothermic process——Generally, (M ₂ -M) kilogram of working fluid carries out the heat release of 67 process, and (M ₁ +M) kilogram of working fluid carries out the heat release of 8r process, and M ₁ kilogram of working fluid condensate For the heat release of the r9 process, the high temperature part is generally used for the heat absorption demand (regeneration) of the low temperature section of the 45 process or the heat demand of the heated medium at the same time, and the low temperature part is generally used for (M ₁ +M ₂ ) The heat demand for kilograms of working fluid for 23 process and M kilograms of working fluid for st process.

③Energy conversion process-(M ₁ +M ₂ ) kg of working fluid for 34 processes are generally completed by compressors, requiring mechanical energy; (M ₁ +M ₂ ) kg of working fluid for 56 processes, (M ₁ +M) kg The working fluid is in the 68 process, the (M ₂ -M) kilogram working fluid is in the 7t process, and the M ₂ kilogram working fluid is in the t2 process. The expander is used to complete and provide mechanical energy. The M kilogram working fluid is used for the rs process and the M ₁ kilogram working fluid is used. The pressure reduction process 91 can be completed by a turbine or a throttle valve; the pressure reduction expansion work is used for boosting power consumption, or when the pressure reduction expansion work is greater than the boosting power consumption, the mechanical energy is output at the same time, or the pressure reduction expansion work is less than the boosting work. When power is consumed, mechanical energy is input from the outside at the same time, forming a two-way type I single working fluid combined cycle.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 14/15 is performed as follows:

(1) From the perspective of the cycle process:

Working medium: M ₁ kg working fluid endothermic vaporization process 12, (M ₁ +M ₂ ) kg working fluid endothermic heating process 23, X kg working fluid pressure rising process 35, X kg working fluid endothermic heating process 56, (M ₁ +M ₂ -X) Kilogram of working fluid endothermic heating process 34, (M ₁ +M ₂ -X) Kilogram of working fluid boosting process 46, (M ₁ +M ₂ ) Kilogram working fluid endothermic Heating process 67, (M ₁ +M ₂ ) kg working fluid depressurizing expansion process 78, (M ₁ +M ₂ ) kg working fluid exothermic cooling process 89, (M ₂ -M) kg working fluid depressurizing expansion process 9t , M ₂ kg working fluid depressurization expansion process t2, (M ₁ +M) kg working fluid exothermic cooling, liquefaction and condensate cooling process 9r, M kg working fluid depressurization process rs, M kg working fluid endothermic , Vaporization and overheating 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) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used For obtaining low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of which is satisfied by regenerative heat; (M ₁ +M ₂ -X) kilogram of working fluid for 34 process heat absorption, available For obtaining low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of which is satisfied by regenerative heat; M kg of working fluid undergoes the heat absorption of the st process, which is generally satisfied by regenerative heat; X kg The heat absorption of the working fluid for 56 processes and the heat absorption of (M ₁ +M ₂ ) kg of the working fluid for 67 processes are provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source, and the heat absorption of the low temperature section is provided by (M ₁ + M ₂ ) The initial exotherm of the 89 process is performed on the kilogram of working fluid to meet the requirement (regeneration).

②Exothermic process——Generally, (M ₁ +M ₂ ) kilogram of working fluid carries out the heat release of 89 process, and (M ₁ +M) kilogram of working fluid carries out the heat release of 9r process, and M ₁ kilogram of working fluid condenses The high temperature part is generally used for the heat absorption demand (regeneration) and the heat demand of the heated medium in the low temperature section of the 56 and 67 processes. The low temperature part is generally used for (M ₁ + M ₂ ) the heat demand of the 23 process for the kilogram working fluid, the heat demand for the st process of the M kilogram working fluid, and the heat demand of the (M ₁ +M ₂ -X) kilogram working fluid for the 34 process.

③Energy conversion process-35 process for X kilogram working medium and 46 process for (M ₁ +M ₂ -X) kilogram working medium are generally completed by compressors, which require mechanical energy; (M ₁ +M ₂ ) kilogram working medium for 78 process, (M ₂ -M) kilogram of working fluid for 9t process and M ₂ kilogram of working fluid for t2 process are completed by the expander and provide mechanical energy, M kilogram of working fluid for rs process and M ₁ kilogram of working fluid for depressurization process c1 can be completed by a turbine or a throttle valve; when the pressure-reducing expansion work is used for boosting power consumption, or when the pressure-reducing expansion work is greater than the boosting power consumption, the mechanical energy is output at the same time, or the pressure-reducing expansion work is less than the boosting power consumption. At the same time, mechanical energy is input from the outside to form a two-way combined cycle of the first type single working substance.

The example of the two-way first-type single working fluid combined cycle in the T-s diagram shown in Figure 15/15 is carried out as follows:

(1) From the perspective of the cycle process:

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 ₂ -M) kg working fluid pressure rising process 34, (M ₂ -M) Kilogram working fluid endothermic heating process 45, (M ₂ -M) Kilogram working fluid depressurization expansion process 56, (M ₂ -M) Kilogram working fluid exothermic and cooling over 67, (M ₂ -M) Kilogram working fluid Pressure reduction and expansion process 7t, M ₂ kg working fluid pressure reduction expansion process t2, (M ₁ +M) kg working fluid endothermic heating process 38, (M ₁ +M) kg working fluid pressure rising process 89, (M ₁ +M) Kilogram working fluid endothermic heating process 9c, (M ₁ +M) Kilogram working fluid depressurization expansion process cd, (M ₁ +M) Kilogram working fluid exothermic cooling, liquefaction and condensate cooling process dr , M kg working fluid depressurization process rs, M kg working fluid endothermic, vaporization and overheating process st, M ₁ kg working fluid condensate exothermic cooling process re, M ₁ kg working fluid condensate depressurization process e1——total 17 processes.

(2) From the perspective of energy conversion:

① Endothermic process-Generally, M ₁ kg of working fluid performs 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 performs 23 processes of heat absorption, which can be used To obtain low-temperature heat load, or partly used to obtain low-temperature heat load and partly satisfied by regenerative heat, or all of which is satisfied by regenerative heat; (M ₁ +M) kilogram of working fluid for 38 process heat demand can be obtained by regenerative heat Satisfied; the heat absorption of the M kg working fluid for the st process is generally satisfied by the regenerative heat; the heat absorption of the (M ₁ +M) kg working fluid for the 9c process is provided by the high temperature heat source, or the heat absorption of the high temperature section is provided by the high temperature heat source Provided, the endothermic heat of the low temperature section _{is satisfied by the initial heat release of the (M 1} +M) kg working fluid for the dr process (regeneration); _{the endothermic heat of the (M 2} -M) kg working fluid for the 45 process is provided by the high temperature heat source , Or the heat absorption in the high temperature section is provided by the high temperature heat source, and the heat absorption in the low temperature section _{is satisfied by the initial heat release of (M 2} -M) kilogram of working fluid in the 67 process (regeneration).

②Exothermic process-(M ₂ -M) kilogram of working fluid for 67 process heat release, and (M ₁ +M) kilogram of working fluid for dr process heat release, and M ₁ kg of working fluid condensate for re 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 23 process, M kg of working fluid for st process and (M ₁ +M) kg The working fluid carries the heat demand of 38 processes.

③Energy conversion process-(M ₁ +M) kilogram of working fluid for 89 process and (M ₂ -M) kilogram of working fluid for 34 process are generally completed by compressors, which require mechanical energy; (M ₂ -M) kilogram of working fluid Two processes of 56 and 7t are carried out, the _{pressure-reducing expansion process of M 2} kg of working fluid is t2, and the _{working fluid of M 1} kg is used for cd process, which is completed by the expander and provides mechanical energy. The working fluid of M kg is used for rs process and M ₁ kg of working fluid. The depressurization process e1 can be completed by a turbine or a throttle valve; the depressurization expansion work is used for boosting power consumption, or when the depressurizing expansion work is greater than the boosting work consumption, the mechanical energy is output at the same time, or the depressurizing expansion work is less than the boosting work. When pressure is consumed, mechanical energy is input from the outside at the same time, forming a two-way type I single working fluid combined cycle.

The effects that can be achieved by the technology of the present invention-the two-way first type single working substance combined cycle proposed by the present invention has the following effects and advantages:

(1) New ideas, new methods and new technologies for the use of temperature differences are proposed.

(2) Thermal energy (temperature difference) drive to achieve heating/cooling, or you can choose to provide power to the outside at the same time.

(3) When necessary, use external power to realize heating/cooling, with flexible methods and good adaptability.

(4) The phase change process achieves low-temperature heat absorption, which is beneficial to reduce the heat transfer temperature difference in the low-temperature heat load acquisition link and improve the cycle performance index.

(5) Separate variable temperature heat release, or a combination of phase change heat release and variable temperature heat release, is beneficial to reduce the heat transfer temperature difference in the heating link and realize the rationalization of the cycle performance index.

(6) Variable temperature heat absorption is beneficial to reduce the heat transfer temperature difference in the high temperature heat load acquisition link and improve the cycle performance index.

(7) Wide range of working fluid parameters, realizing high-efficiency and high-temperature heating.

(8) Provide a theoretical basis for reducing the working pressure of the heat pump system using temperature difference and improving the safety of the device.

(9) Reduce the cycle compression ratio to provide convenience for the selection and manufacture of core equipment.

(10) The method is simple, the process is reasonable, and the applicability is good. It is a common technology to realize the effective use of temperature difference/energy difference.

(11) Process sharing, reducing process, and providing a theoretical basis for reducing equipment investment.

(12) 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.

(13) 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.

Claims (15)

1. The two-way type I single working fluid combined cycle refers _{to the nine processes that are composed of M 1} kg and M ₂ kg, respectively or jointly-the M ₁ kg working fluid endothermic vaporization process 12, (M ₁ + M ₂ )Kg working fluid endothermic process 23, (M ₁ +M ₂ )Kg working fluid boost process 34, (M ₁ +M ₂ )Kg working fluid heat absorption process 45, (M ₁ +M ₂ )Kg working fluid Mass depressurization process 56, (M ₁ + M ₂ ) kg of working fluid exothermic process 67, M ₂ kg of working fluid depressurization process 72, M ₁ kg of working fluid exothermic condensation process 78, M ₁ kg of working fluid depressurization process 81—The closing process of composition.
2. The two-way type I single working fluid combined cycle refers to _{the working fluids composed of M 1} kg and M ₂ kg, which are carried out separately or jointly in ten processes-M ₁ kg working fluid endothermic vaporization process 12, (M ₁ + M ₂ )Kg working fluid endothermic process 23, (M ₁ +M ₂ )Kg working fluid boost process 34, (M ₁ +M ₂ )Kg working fluid heat absorption process 45, (M ₁ +M ₂ )Kg working fluid Process of depressurization 56 of M ₂ kg of refrigerant, 67 of M ₂ kg of refrigerant, 78 of M ₂ kg of refrigerant, 82 of M ₂ kg of refrigerant, 69 of M ₁ kg of refrigerant, M 1 kg of refrigerant Working fluid depressurization process 91-the closed process of composition.
3. The two-way type I single working fluid combined cycle refers to _{the working fluids composed of M 1} kg and M ₂ kg, which are carried out separately or jointly in ten processes-M ₁ kg working fluid endothermic vaporization process 12, (M ₁ + M ₂ )Kg working fluid endothermic process 23, (M ₁ +M ₂ )Kg working fluid boost process 34, (M ₁ +M ₂ )Kg working fluid heat absorption process 45, (M ₁ +M ₂ )Kg working fluid Process of depressurization 56, M ₂ kg of refrigerant exothermic process 67, M ₂ kg of refrigerant depressurization process 72, M ₁ kg of refrigerant depressurization process 68, M ₁ kg of refrigerant exothermic and condensation 89, M ₁ kg Working fluid depressurization process 91-the closed process of composition.
4. The two-way type I single working fluid combined cycle refers to _{the working fluids composed of M 1} kg and M ₂ kg, which are carried out separately or jointly in twelve processes-M ₁ kg working fluid endothermic vaporization process 12, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 23, X kilogram working fluid boosting process 35, X kilogram working fluid endothermic process 56, (M ₁ +M ₂ -X) kilogram working fluid endothermic process 34, (M ₁ +M ₂ -X) Kilogram working fluid boosting process 46, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 67, (M ₁ +M ₂ ) Kilogram working fluid depressurizing process 78, (M ₁ +M ₂₎ ) Kilogram working fluid exothermic process 89, M ₂ kilogram working fluid depressurization process 92, M ₁ kilogram working fluid exothermic condensation process 9c, M ₁ kilogram working fluid depressurization process c1—composed closed process.
5. The first bidirectional single combined cycle working fluid, refers to the process by the thirteen M ₁ M in kilograms and the working medium composed of ₂ kg, respectively, or jointly --M ₁ kilogram of working fluid 12 is endothermic vaporization, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 23, M ₂ kilogram working fluid pressure increasing process 34, M ₂ kilogram working fluid heat absorption process 45, M ₂ kilogram working fluid depressurizing process 56, M ₂ kilogram working fluid exothermic process 67, M ₂ kg working fluid pressure reduction process 72, M ₁ kg working fluid heat absorption process 38, M ₁ kg working fluid pressure increase process 89, M ₁ kg working fluid heat absorption process 9c, M ₁ kg working fluid pressure reduction process cd, M ₁ kg of working fluid exothermic condensation process de, M ₁ kg of working fluid depressurization process e1-a closed process of composition.
6. The first bidirectional single combined cycle working fluid, a process that is to 10 by the working fluid in kilograms and M ₂ M ₁ kilogram of composition, separately or jointly --M ₁ kilogram of working fluid 12 is endothermic vaporization, (M ₁ +M ₂ )Kg working fluid endothermic process 23, (M ₁ +M ₂ )Kg working fluid boost process 34, (M ₁ +M ₂ )Kg working fluid heat absorption process 45, (M ₁ +M ₂ )Kg Working fluid depressurization process 56, (M ₁ +M ₂ ) kg working fluid exothermic process 67, M ₂ kg working fluid depressurizing process 7f, M ₂ kg working fluid endothermic process fg, M ₂ kg working fluid depressurizing process g2, M ₁ kg of working fluid exothermic condensation process 78, M ₁ kg of working fluid depressurization process 81-a closed process of composition.
7. The two-way type I single working fluid combined cycle refers to _{the working fluids composed of M 1} kg and M ₂ kg, which are carried out separately or jointly in twelve processes-M ₁ kg working fluid endothermic vaporization process 12, (M ₁ +M ₂ )Kg working fluid endothermic process 23, (M ₁ +M ₂ )Kg working fluid boost process 34, (M ₁ +M ₂ )Kg working fluid heat absorption process 45, (M ₁ +M ₂ )Kg refrigerant depressurization 56, M ₂ kilogram working fluid depressurisation 67, M ₂ kilogram refrigerant heat through 78, M ₂ kilogram working fluid depressurisation 8f, M ₂ kilogram refrigerant endothermic process fg, M ₂ kilogram Working fluid depressurization process g2, M ₁ kg working fluid exothermic condensation process 69, M ₁ kg working fluid depressurization process 91-a closed process composed of.
8. The two-way type I single working fluid combined cycle refers to _{the working fluids composed of M 1} kg and M ₂ kg, which are carried out separately or jointly in twelve processes-M ₁ kg working fluid endothermic vaporization process 12, (M ₁ +M ₂ )Kg working fluid endothermic process 23, (M ₁ +M ₂ )Kg working fluid boost process 34, (M ₁ +M ₂ )Kg working fluid heat absorption process 45, (M ₁ +M ₂ )Kg Working fluid depressurization process 56, M ₂ kg working fluid exothermic process 67, M ₂ kg working fluid depressurizing process 7f, M ₂ kg working fluid endothermic process fg, M ₂ kg working fluid depressurizing process g2, M ₁ kg Working fluid pressure reduction process 68, M ₁ kg working fluid exothermic and condensed over 89, M ₁ kg working fluid pressure reduction process 91-a closed process composed of.
9. The first bidirectional single combined cycle working fluid, refers to fourteen working fluid by the process in kilograms and M ₂ M ₁ kilogram of composition, separately or jointly --M ₁ kilogram of working fluid 12 is endothermic vaporization, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 23, X kilogram working fluid boosting process 35, X kilogram working fluid endothermic process 56, (M ₁ +M ₂ -X) kilogram working fluid endothermic process 34, (M ₁ +M ₂ -X) Kilogram working fluid boosting process 46, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 67, (M ₁ +M ₂ ) Kilogram working fluid depressurizing process 78, (M ₁ +M ₂₎ ) Kilogram working fluid exothermic process 89, M ₂ kilogram working fluid pressure reduction process 9f, M ₂ kilogram working fluid endothermic process fg, M ₂ kilogram working fluid pressure reduction process g2, M ₁ kilogram working fluid exothermic condensation process 9c, M ₁ kg of working fluid depressurization process c1-the closed process of composition.
10. The first bidirectional single combined cycle working fluid, the working fluid by the means M ₁ M ₂ kilogram in kilograms and consisting of fifteen process performed separately or together --M ₁ kilogram process 12 is working fluid absorbs heat of vaporization, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 23, M ₂ kilogram working fluid pressure increasing process 34, M ₂ kilogram working fluid heat absorption process 45, M ₂ kilogram working fluid depressurizing process 56, M ₂ kilogram working fluid exothermic process 67, M ₂ kg working fluid depressurization process 7f, M ₂ kg working fluid endothermic process fg, M ₂ kg working fluid depressurization process g2, M ₁ kg working fluid endothermic process 38, M ₁ kg working fluid boosting process 89, M ₁ kg working fluid endothermic process 9c, M ₁ kg working fluid depressurization process cd, M ₁ kg working fluid exothermic condensation process de, M ₁ kg working fluid depressurization process e1-a closed process composed of.
11. The first bidirectional single combined cycle working fluid, refers to the process by the thirteen M ₁ M in kilograms and the working medium composed of ₂ kg, respectively, or jointly --M ₁ kilogram of working fluid 12 is endothermic vaporization, (M ₁ +M ₂ )Kg working fluid endothermic process 23, (M ₁ +M ₂ )Kg working fluid boost process 34, (M ₁ +M ₂ )Kg working fluid heat absorption process 45, (M ₁ +M ₂ )Kg Working fluid pressure reduction process 56, (M ₁ +M ₂ ) kg working fluid heat release process 67, (M ₂ -M) kg working fluid pressure reduction process 7t, M ₂ kg working fluid pressure reduction process t2, (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— -The closing process of the composition.
12. The first bidirectional single combined cycle working fluid, refers to fourteen working fluid by the process in kilograms and M ₂ M ₁ kilogram of composition, separately or jointly --M ₁ kilogram of working fluid 12 is endothermic vaporization, (M ₁ +M ₂ )Kg working fluid endothermic process 23, (M ₁ +M ₂ )Kg working fluid boost process 34, (M ₁ +M ₂ )Kg working fluid heat absorption process 45, (M ₁ +M ₂ )Kg Working fluid depressurization process 56, (M ₂ -M) kilogram working fluid depressurization process 67, (M ₂ -M) kilogram working fluid exothermics over 78, (M ₂ -M) kilogram working fluid depressurization process 8t, M ₂ kg working fluid depressurization process t2, (M ₁ +M) kg working fluid exothermic condensation process 6r, M kg working fluid depressurization process rs, M kg working fluid endothermic vaporization process st, M ₁ kg working fluid exothermic Process r9, M ₁ kg of working fluid depressurization process 91-a closed process of composition.
13. The first bidirectional single combined cycle working fluid, refers to fourteen working fluid by the process in kilograms and M ₂ M ₁ kilogram of composition, separately or jointly --M ₁ kilogram of working fluid 12 is endothermic vaporization, (M ₁ +M ₂ )Kg working fluid endothermic process 23, (M ₁ +M ₂ )Kg working fluid boost process 34, (M ₁ +M ₂ )Kg working fluid heat absorption process 45, (M ₁ +M ₂ )Kg Working fluid pressure reduction process 56, (M ₂ -M) kg working fluid heat release process 67, (M ₂ -M) kg pressure reduction process 7t, M ₂ kg working fluid pressure reduction process t2, (M ₁ +M) kg Working fluid pressure reduction process 68, (M ₁ +M) kg working fluid exothermic condensation process 8r, M kg working fluid pressure reduction process rs, M kg working fluid endothermic vaporization process st, M ₁ kg working fluid heat release process r9 , M ₁ kg of working fluid depressurization process 91-a closed process composed of.
14. The first bidirectional single combined cycle working fluid, the working fluid by the means M ₁ M ₂ kilogram in kilograms and consisting of sixteen of the process separately or jointly --M ₁ kilogram process 12 is working fluid absorbs heat of vaporization, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 23, X kilogram working fluid boosting process 35, X kilogram working fluid endothermic process 56, (M ₁ +M ₂ -X) kilogram working fluid endothermic process 34, (M ₁ +M ₂ -X) Kilogram working fluid boosting process 46, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 67, (M ₁ +M ₂ ) Kilogram working fluid depressurizing process 78, (M ₁ +M ₂₎ ) Kilogram working fluid exothermic process 89, (M ₂ -M) kilogram pressure reduction process 9t, M ₂ kilogram working fluid pressure reduction process t2, (M ₁ +M) kilogram 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.
15. The first bidirectional single combined cycle working fluid, the working fluid by the means M ₁ M ₂ kilogram in kilograms and composed of seventeen process performed separately or together --M ₁ kilogram process 12 is working fluid absorbs heat of vaporization, (M ₁ +M ₂ ) Kilogram working fluid endothermic process 23, (M ₂ -M) Kilogram working fluid boost process 34, (M ₂ -M) Kilogram working fluid heat absorption process 45, (M ₂ -M) Kilogram working fluid drop Pressure process 56, (M ₂ -M) kg working fluid exothermic process 67, (M ₂ -M) kg pressure reduction process 7t, M ₂ kg working fluid pressure reduction process t2, (M ₁ +M) kg working fluid absorption Thermal process 38, (M ₁ +M) kilogram working fluid pressure increase process 89, (M ₁ +M) kilogram working fluid endothermic process 9c, (M ₁ +M) kilogram working fluid pressure reduction process cd, (M ₁ + M) kg working fluid exothermic condensation process dr, M kg working fluid depressurization process rs, M kg working fluid endothermic vaporization process st, M ₁ kg working fluid exothermic process re, M ₁ kg working fluid depressurization process e1— -The closing process of the composition.

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