CN117722256A

CN117722256A - Fuel carrying same light and heat combined cycle power device

Info

Publication number: CN117722256A
Application number: CN202311294303.4A
Authority: CN
Inventors: 李鸿瑞; 李华玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-29
Filing date: 2023-09-25
Publication date: 2024-03-19

Abstract

The invention provides a fuel carrying photo-thermal combined cycle power device, and belongs to the technical field of thermodynamics and thermokinetic. The outside is provided with a fuel channel communicated with the heating furnace, the outside is provided with an air channel communicated with the heating furnace through a heat source regenerator, and the heating furnace is provided with a fuel gas channel communicated with the outside through the heat source regenerator; the outside is provided with a working medium channel which is communicated with a compressor, the compressor is provided with a first working medium channel which is communicated with an expander through a heat regenerator, the expander is provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger, and the compressor is provided with a second working medium channel which is communicated with the outside through a solar heat collection system, a heating furnace, a second expander, the heat regenerator and the intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, then the intermediate heat exchanger is further provided with a steam channel which is communicated with a steam turbine, and the steam turbine is communicated with the condenser; the condenser is provided with a cooling medium channel which is communicated with the outside, and the expander and the second expander are connected with the compressor and transmit power to form the fuel carrying and photo-thermal combined cycle power device.

Description

Fuel carrying same light and heat combined cycle power device

Technical field:

the invention belongs to the technical field of thermodynamics and thermal dynamics.

The background technology is as follows:

power and electricity are two basic and important demands in human life and production; the conversion of thermal energy from source energy into mechanical energy is the most fundamental requirement with simple and efficient technical measures-for this purpose, the skilled person is constantly striving.

The conventional fuel has different types and properties, and the temperature of fuel gas formed by fuel combustion directly determines the heat-changing work efficiency; limited by one or more factors such as the operating principle, the nature of the working medium, the nature of the materials, the manufacturing level of equipment and other components, and the like, in a thermodynamic device adopting high-grade fuel, the combustion process has larger irreversible loss due to temperature difference.

The solar energy forms high-temperature light and heat through a heat collection technical means, and then thermal power can be realized by utilizing a thermal power device, however, due to factors such as a working principle, materials, safety and the like, the power application value of a high-temperature heat source formed by solar energy aggregation is often not fully exerted, and a large lifting space exists.

The gas-steam combined cycle power plant is an important means for obtaining power by utilizing high-temperature heat load formed by fuel combustion. In order to improve the power application value of the fuel, the temperature of the working medium at the end of heat absorption should be increased as much as possible, and the temperature and the quantity of the heat load discharged by the high-temperature expansion machine should be reduced. However, the higher the temperature of the working medium, the higher the temperature of the high-temperature expander discharging heat load is, and the heat transfer temperature difference loss between the upper and lower circulation in the gas-steam combined cycle system is increased; therefore, advanced technological approaches are needed to reduce the irreversible loss of temperature differentials in fuel power applications.

The invention provides a fuel carrying and photo-thermal combined cycle power device which takes high-temperature photo-thermal as driving energy and has the advantages of high thermal efficiency, strong safety, simple structure and the like, greatly improves the efficiency and application value of photo-thermal conversion into mechanical energy and remarkably reduces the construction cost of a system.

The invention comprises the following steps:

the invention mainly aims to provide a fuel carrying photo-thermal combined cycle power plant, and the specific invention is described in the following items:

1. the fuel carrying and photo-thermal combined cycle power plant mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump and a condenser; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source heat regenerator, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator; the outside is provided with a working medium channel which is communicated with the compressor, the compressor is also provided with a first working medium channel which is communicated with the expander through the heat regenerator, the expander is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger, the compressor is also provided with a second working medium channel which is communicated with the heating furnace through the solar heat collection system, the heating furnace is also provided with a working medium channel which is communicated with the second expander, and the second expander is also provided with a working medium channel which is communicated with the outside through the heat regenerator and the intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the second expander are connected with the compressor and transmit power to form the fuel carrying and photo-thermal combined cycle power device.

2. The fuel carrying and photo-thermal combined cycle power plant mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump and a condenser; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source heat regenerator, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator; the outside is provided with a working medium channel which is communicated with a compressor, the compressor is also provided with a first working medium channel which is communicated with an expander through a heat regenerator, the expander is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger, the compressor is also provided with a second working medium channel which is communicated with a heating furnace through a solar heat collection system, the heating furnace is also provided with a working medium channel which is communicated with a second expander, and the second expander is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger after being communicated with the second expander through the heat regenerator; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the second expander are connected with the compressor and transmit power to form the fuel carrying and photo-thermal combined cycle power device.

3. The fuel carrying same-light-heat combined cycle power device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source heat regenerator, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator; the outside is provided with a working medium channel which is communicated with the compressor, the compressor is also provided with a first working medium channel which is communicated with the expander through the heat regenerator, the expander is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger, the compressor is also provided with a second working medium channel which is communicated with the heating furnace through the second heat regenerator and the solar heat collecting system, the heating furnace is also provided with a working medium channel which is communicated with the second expander, and the second expander is also provided with a working medium channel which is communicated with the outside through the second heat regenerator, the heat regenerator and the intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the second expander are connected with the compressor and transmit power to form the fuel carrying and photo-thermal combined cycle power device.

4. The fuel carrying same-light-heat combined cycle power device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source heat regenerator, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator; the outside is provided with a working medium channel which is communicated with the compressor, the compressor is also provided with a first working medium channel which is communicated with the expander through the heat regenerator, the expander is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger, the compressor is also provided with a second working medium channel which is communicated with the heating furnace through the second heat regenerator and the solar heat collecting system, the heating furnace is also provided with a working medium channel which is communicated with the second expander, and the second expander is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger after being communicated with the second heat regenerator and the heat regenerator; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the second expander are connected with the compressor and transmit power to form the fuel carrying and photo-thermal combined cycle power device.

5. The fuel carrying same-light-heat combined cycle power device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source heat regenerator, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator; the outside is provided with a working medium channel which is communicated with the compressor, the compressor is also provided with a first working medium channel which is communicated with the expander through the heat regenerator, the expander is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger, the compressor is also provided with a second working medium channel which is communicated with the compressor through the second heat regenerator, the compressor is also provided with a working medium channel which is communicated with the heating furnace through the solar heat collecting system, the heating furnace is also provided with a working medium channel which is communicated with the second expander, and the second expander is also provided with a working medium channel which is communicated with the outside through the second heat regenerator, the heat regenerator and the intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the second expander are connected with the compressor and transmit power to form the fuel carrying and photo-thermal combined cycle power device.

6. The fuel carrying same-light-heat combined cycle power device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source heat regenerator, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator; the outside is provided with a working medium channel which is communicated with the compressor, the compressor is also provided with a first working medium channel which is communicated with the expander through the heat regenerator, the expander is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger, the compressor is also provided with a second working medium channel which is communicated with the compressor through the second heat regenerator, the compressor is also provided with a working medium channel which is communicated with the heating furnace through the solar heat collecting system, the heating furnace is also provided with a working medium channel which is communicated with the second expander, and the second expander is also provided with a working medium channel which is communicated with the outside through the heat regenerator and the intermediate heat exchanger after the second working medium channel is communicated with the compressor; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the second expander are connected with the compressor and transmit power to form the fuel carrying and photo-thermal combined cycle power device.

7. The fuel carrying and photo-thermal combined cycle power plant is formed by adding a diffusion pipe and a second intermediate heat exchanger in any one of the fuel carrying and photo-thermal combined cycle power plants of the 1 st to the 6 th, adjusting two paths of working medium channels of the intermediate heat exchanger to be communicated with the outside through the second intermediate heat exchanger, adjusting a condensate pipe of a booster pump to be communicated with the intermediate heat exchanger, and then, communicating a wet steam channel of the second intermediate heat exchanger with the intermediate heat exchanger through the diffusion pipe after the condensate pipe of the booster pump is communicated with the second intermediate heat exchanger.

8. The fuel carrying and photo-thermal combined cycle power plant is characterized in that in any one of the fuel carrying and photo-thermal combined cycle power plants in the 1 st, the 3 rd, the 5 th and the 6 th, a working medium channel communicated with a compressor is canceled, the working medium channel of an expander is communicated with the outside through an intermediate heat exchanger and is adjusted to be communicated with the intermediate heat exchanger, the working medium channel of a regenerator is communicated with the outside through the intermediate heat exchanger and is adjusted to be communicated with the working medium channel of the regenerator, and the working medium channel of the intermediate heat exchanger is communicated with the compressor, so that the fuel carrying and photo-thermal combined cycle power plant is formed.

9. The fuel-carrying photo-thermal combined cycle power plant according to claim 2 or 4 is formed by eliminating the working medium passage externally connected to the compressor, adjusting the working medium passage of the expander to be connected to the intermediate heat exchanger through the intermediate heat exchanger and the external connection, adjusting the working medium passage of the second expander to be connected to the intermediate heat exchanger through the intermediate heat exchanger and the external connection, and setting the working medium passage to be connected to the compressor through the intermediate heat exchanger.

10. The fuel carrying photo-thermal combined cycle power plant is formed by adding a diffuser pipe and a second intermediate heat exchanger in any one of the fuel carrying photo-thermal combined cycle power plants of 8-9, adjusting the communication of a working medium channel of the intermediate heat exchanger and a compressor to the communication of the working medium channel of the intermediate heat exchanger and the compressor through the second intermediate heat exchanger, adjusting the communication of a condensate pipe of a booster pump and the intermediate heat exchanger to the communication of the condensate pipe of the booster pump and the second intermediate heat exchanger, and then communicating a wet steam channel of the second intermediate heat exchanger with the intermediate heat exchanger through the diffuser pipe.

11. The fuel carrying and photo-thermal combined cycle power plant is characterized in that in any one of the fuel carrying and photo-thermal combined cycle power plants in the 8 th to 10 th modes, an expansion speed increaser is added and replaces the expansion machine, a second expansion speed increaser is added and replaces the second expansion machine, a dual-energy compressor is added and replaces the compressor, and the fuel carrying and photo-thermal combined cycle power plant is formed.

12. The fuel carrying and photo-thermal combined cycle power plant is characterized in that in any one of the fuel carrying and photo-thermal combined cycle power plants of 8-10, a spray pipe is added to replace an expander, a second expansion speed increaser is added to replace the second expander, a dual-energy compressor is added to replace the compressor, and the fuel carrying and photo-thermal combined cycle power plant is formed.

13. The fuel-carrying and photo-thermal combined cycle power plant is formed by adjusting the communication of an external air channel with a heating furnace through a heat source regenerator to be communicated with the heating furnace through the heat source regenerator and a solar heat collection system, adjusting the communication of a compressor with a second working medium channel with the heating furnace through the solar heat collection system to be communicated with the compressor with a second working medium channel with the heating furnace in any one of the fuel-carrying and photo-thermal combined cycle power plants of the 1-2 and 5-6.

14. The fuel carrying and photo-thermal combined cycle power plant is characterized in that in any one of the fuel carrying and photo-thermal combined cycle power plants in the 3-4 th step, an external air channel is communicated with a heating furnace through a heat source regenerator and is adjusted to be communicated with the heating furnace through the heat source regenerator and a solar heat collection system, a compressor is communicated with a second working medium channel through the second regenerator and the solar heat collection system and is adjusted to be communicated with the heating furnace through a compressor, and a second working medium channel is communicated with the heating furnace through the second regenerator, so that the fuel carrying and photo-thermal combined cycle power plant is formed.

15. The fuel carrying and photo-thermal combined cycle power plant is formed by adding a second booster pump and a low-temperature heat regenerator in any one of the fuel carrying and photo-thermal combined cycle power plants of the 1 st to 14 th, adjusting the communication between a condenser with condensate pipe and the booster pump to be that the condenser with condensate pipe is communicated with the low-temperature heat regenerator through the second booster pump, and adding a steam extraction channel to a steam turbine to be communicated with the low-temperature heat regenerator, wherein the low-temperature heat regenerator is further communicated with the booster pump through the condensate pipe, thereby forming the fuel carrying and photo-thermal combined cycle power plant.

16. The fuel carrying and photo-thermal combined cycle power plant is formed by adding an expansion speed-increasing turbine and replacing a turbine in any one of the fuel carrying and photo-thermal combined cycle power plant of the 7 th and 10 th.

17. The fuel carrying and photo-thermal combined cycle power plant is formed by adding an expansion speed increaser and replacing a steam turbine, adding a newly added diffuser pipe and replacing a booster pump in any one of the fuel carrying and photo-thermal combined cycle power plants of 1-15.

Description of the drawings:

FIG. 1 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant according to the invention.

FIG. 2 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant according to the present invention.

FIG. 3 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant according to the invention.

FIG. 4 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant according to the invention, 4 th principle.

FIG. 5 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant according to the invention.

FIG. 6 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant according to the invention.

FIG. 7 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant according to the invention.

FIG. 8 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant according to the invention.

FIG. 9 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant according to the 9 th principles of the present invention.

FIG. 10 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant according to the 10 th principles of the present invention.

FIG. 11 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant 11 according to the present invention.

FIG. 12 is a schematic diagram of a 12 th principle thermodynamic system of a combined cycle power plant with both fuel and light and heat according to the present invention.

FIG. 13 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant 13 according to the present invention.

FIG. 14 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal combined cycle power plant 14 according to the present invention.

In the figure, a 1-expander, a 2-second expander, a 3-compressor, a 4-solar heat collection system, a 5-heating furnace, a 6-heat source regenerator, a 7-regenerator, an 8-intermediate heat exchanger, a 9-turbine, a 10-booster pump, a 11-condenser, a 12-second regenerator, a 13-diffuser pipe, a 14-second intermediate heat exchanger, a 15-second booster pump, a 16-low temperature regenerator, an A-expansion speed increaser, a B-second expansion speed increaser, a C-dual-energy compressor, a D-spray pipe, an E-expansion speed increaser and an F-newly increased diffuser pipe.

Brief description of the drawing with respect to high grade fuel, solar collection system and drawings:

(1) High grade fuel: refers to a fuel in which the heat source formed by the combustion products is relatively high in temperature.

In contrast, the low grade fuel refers to the fuel with relatively low heat source temperature formed by combustion products.

(2) For the fuel which needs to provide driving heat load for the circulating working medium/working medium through indirect means, the fuel which can reach higher temperature of the circulating working medium/working medium is high-grade fuel, and the fuel which can reach lower temperature of the circulating working medium/working medium is low-grade fuel.

In the present invention, the temperature of the working medium after absorbing heat by the solar heat collecting system 4 is lower than the temperature of the working medium after absorbing heat by the heating furnace 5, the photo-thermal is low grade fuel (energy source), and the fuel mentioned in the present application is high grade fuel.

(3) The solar heat collection system in the application of the invention is also called a solar heat supply system, and refers to a heat supply system which converts solar radiation energy into high-temperature heat energy (photo-thermal for short) by using a heat collector and is used for providing driving heat load for a thermodynamic cycle system; it is mainly composed of heat collector and related necessary auxiliary facilities.

Types of solar energy collection systems include, but are not limited to: (1) the concentrating solar heat collection system mainly comprises a groove type system, a tower type system and a butterfly type system at present; (2) the non-concentrating solar heat collecting system has solar pond, solar chimney and other systems.

(4) There are two main types of heat supply modes of solar heat collection systems at present: (1) the high-temperature heat energy converted by solar energy is directly supplied to a circulating working medium flowing through a solar heat collection system; (2) the high-temperature heat energy converted from solar energy is firstly provided for a working medium of a self-circulation loop, and then the working medium is provided for a circulation working medium/working medium flowing through a solar heat collection system through a heat exchanger.

(5) Taking fig. 1 as an example, for simplicity of drawing, "the expander 1 further has a working medium passage communicating with the outside via the intermediate heat exchanger 8" and "the second expander 2 further has a working medium passage communicating with the outside via the regenerator 7 and the intermediate heat exchanger 8", are shown in fig. 1 by sharing one passage (one line); taking fig. 1 as an example, the two working media of the drawing may be combined into one path before entering the intermediate heat exchanger 8.

The specific embodiment is as follows:

It should be noted that the description of the structure and the flow is not repeated if necessary, and the obvious flow is not described. The invention is described in detail below with reference to the drawings and examples.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 1 is realized by the following steps:

(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump and a condenser; the outside is provided with a fuel channel which is communicated with the heating furnace 5, the outside is also provided with an air channel which is communicated with the heating furnace 5 through a heat source heat regenerator 6, and the heating furnace 5 is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator 6; the outside is provided with a working medium channel which is communicated with the compressor 3, the compressor 3 is also provided with a first working medium channel which is communicated with the expander 1 through a heat regenerator 7, the expander 1 is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger 8, the compressor 3 is also provided with a second working medium channel which is communicated with the heating furnace 5 through a solar heat collecting system 4, the heating furnace 5 is also provided with a working medium channel which is communicated with the second expander 2, and the second expander 2 is also provided with a working medium channel which is communicated with the outside through the heat regenerator 7 and the intermediate heat exchanger 8; the condenser 11 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 8 through a booster pump 10, then the intermediate heat exchanger 8 is further provided with a steam channel which is communicated with the steam turbine 9, and the steam turbine 9 is also provided with a low-pressure steam channel which is communicated with the condenser 11; the condenser 11 is also provided with a cooling medium passage communicating with the outside, and the expander 1 and the second expander 2 are connected to the compressor 3 and transmit power.

(2) In the flow, the external air flows through the heat source regenerator 6 to absorb heat and raise temperature and then enters the heating furnace 5, the external fuel enters the heating furnace 5, the fuel and the air are mixed in the heating furnace 5 and burnt to generate high-temperature fuel gas, the fuel gas releases heat on a working medium flowing through the heating furnace 5, and then flows through the heat source regenerator 6 to release heat and lower temperature and is discharged outwards; the external working medium enters the compressor 3 to boost and heat up to a certain extent and then is divided into two paths, wherein the first path is subjected to heat absorption and heat up through the heat regenerator 7, the first path is subjected to depressurization and work through the expander 1 and is discharged outwards after heat release and temperature reduction through the intermediate heat exchanger 8, and the second path is subjected to continuous boosting and heat up, heat absorption and heat up through the solar heat collection system 4 and heat absorption and heat up through the heating furnace 5; working medium discharged from the heating furnace 5 flows through the second expander 2 to perform decompression and work, gradually releases heat and lowers temperature through the regenerator 7 and the intermediate heat exchanger 8, and is discharged outwards; the condensate discharged by the condenser 11 is boosted by the booster pump 10, is subjected to heat absorption, temperature rise and vaporization by the intermediate heat exchanger 8, is subjected to pressure reduction and work by the steam turbine 9, and then enters the condenser 11 for heat release and condensation; the solar energy provides a driving heat load through the solar heat collection system 4, the fuel provides a driving heat load through the heating furnace 5, the cooling medium takes away the low-temperature heat load through the condenser 11, the working medium takes away the low-temperature heat load through the in-out flow, and the air and the fuel gas take away the discharging heat load through the in-out flow; the work output by the expander 1, the second expander 2 and the steam turbine 9 is provided for the compressor 3 and external power, or the work output by the expander 1, the second expander 2 and the steam turbine 9 is provided for the compressor 3, the booster pump 10 and external power, so that the fuel carrying and photo-thermal combined cycle power device is formed.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 2 is realized by the following steps:

(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump and a condenser; the outside is provided with a fuel channel which is communicated with the heating furnace 5, the outside is also provided with an air channel which is communicated with the heating furnace 5 through a heat source heat regenerator 6, and the heating furnace 5 is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator 6; the outside is provided with a working medium channel which is communicated with the compressor 3, the compressor 3 is also provided with a first working medium channel which is communicated with the expander 1 through a heat regenerator 7, the expander 1 is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger 8, the compressor 3 is also provided with a second working medium channel which is communicated with the heating furnace 5 through a solar heat collecting system 4, the heating furnace 5 is also provided with a working medium channel which is communicated with the second expander 2, the second expander 2 is also provided with a working medium channel which is communicated with the second expander 2 through the intermediate heat exchanger 8 after being communicated with the second expander 2 is also provided with a working medium channel which is communicated with the outside through the heat regenerator 7; the condenser 11 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 8 through a booster pump 10, then the intermediate heat exchanger 8 is further provided with a steam channel which is communicated with the steam turbine 9, and the steam turbine 9 is also provided with a low-pressure steam channel which is communicated with the condenser 11; the condenser 11 is also provided with a cooling medium passage communicating with the outside, and the expander 1 and the second expander 2 are connected to the compressor 3 and transmit power.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, the difference is that: the working medium discharged by the heating furnace 5 enters the second expander 2 to perform decompression and work, flows through the regenerator 7 to release heat and cool to a certain extent, then enters the second expander 2 to continue decompression and work, flows through the intermediate heat exchanger 8 to release heat and cool and discharge to the outside, and the fuel carrying same light and heat combined cycle power device is formed.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 3 is realized by the following steps:

(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 5, the outside is also provided with an air channel which is communicated with the heating furnace 5 through a heat source heat regenerator 6, and the heating furnace 5 is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator 6; the outside is provided with a working medium channel which is communicated with the compressor 3, the compressor 3 is also provided with a first working medium channel which is communicated with the expander 1 through a heat regenerator 7, the expander 1 is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger 8, the compressor 3 is also provided with a second working medium channel which is communicated with the heating furnace 5 through a second heat regenerator 12 and a solar heat collecting system 4, the heating furnace 5 is also provided with a working medium channel which is communicated with the second expander 2, and the second expander 2 is also provided with a working medium channel which is communicated with the outside through the second heat regenerator 12, the heat regenerator 7 and the intermediate heat exchanger 8; the condenser 11 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 8 through a booster pump 10, then the intermediate heat exchanger 8 is further provided with a steam channel which is communicated with the steam turbine 9, and the steam turbine 9 is also provided with a low-pressure steam channel which is communicated with the condenser 11; the condenser 11 is also provided with a cooling medium passage communicating with the outside, and the expander 1 and the second expander 2 are connected to the compressor 3 and transmit power.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, the difference is that: the second path of working medium discharged by the compressor 3 flows through the second heat regenerator 12 and the solar heat collection system 4 to absorb heat gradually and raise temperature, and then enters the heating furnace 5 to absorb heat and raise temperature; the working medium discharged by the second expander 2 is gradually released and cooled through the second heat regenerator 12, the heat regenerator 7 and the intermediate heat exchanger 8, and then is discharged from outside to form the fuel carrying and photo-thermal combined cycle power plant.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 4 is realized by the following steps:

(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 5, the outside is also provided with an air channel which is communicated with the heating furnace 5 through a heat source heat regenerator 6, and the heating furnace 5 is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator 6; the outside is provided with a working medium channel which is communicated with the compressor 3, the compressor 3 is also provided with a first working medium channel which is communicated with the expander 1 through a heat regenerator 7, the expander 1 is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger 8, the compressor 3 is also provided with a second working medium channel which is communicated with the heating furnace 5 through a second heat regenerator 12 and a solar heat collecting system 4, the heating furnace 5 is also provided with a working medium channel which is communicated with the second expander 2, and the second expander 2 is also provided with a working medium channel which is communicated with the expander 2 through the intermediate heat exchanger 8 after the second working medium channel is also communicated with the expander 2 through the second heat regenerator 12 and the heat regenerator 7; the condenser 11 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 8 through a booster pump 10, then the intermediate heat exchanger 8 is further provided with a steam channel which is communicated with the steam turbine 9, and the steam turbine 9 is also provided with a low-pressure steam channel which is communicated with the condenser 11; the condenser 11 is also provided with a cooling medium passage communicating with the outside, and the expander 1 and the second expander 2 are connected to the compressor 3 and transmit power.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, the difference is that: the second path of working medium discharged by the compressor 3 flows through the second heat regenerator 12 and the solar heat collection system 4 to absorb heat gradually and raise temperature, and then enters the heating furnace 5 to absorb heat and raise temperature; the working medium discharged by the heating furnace 5 enters the second expander 2 to perform decompression and work, flows through the second heat regenerator 12 and the heat regenerator 7 to gradually release heat and cool to a certain extent, then enters the second expander 2 to continue decompression and work, and then flows through the intermediate heat exchanger 8 to release heat and cool and discharge to the outside to form the fuel carrying same-photo-thermal combined cycle power plant.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 5 is realized by:

(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 5, the outside is also provided with an air channel which is communicated with the heating furnace 5 through a heat source heat regenerator 6, and the heating furnace 5 is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator 6; the outside is provided with a working medium channel which is communicated with the compressor 3, the compressor 3 is also provided with a first working medium channel which is communicated with the expander 1 through a heat regenerator 7, the expander 1 is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger 8, the compressor 3 is also provided with a second working medium channel which is communicated with the compressor 3 through a second heat regenerator 12, the compressor 3 is also provided with a working medium channel which is communicated with the heating furnace 5 through a solar heat collecting system 4, the heating furnace 5 is also provided with a working medium channel which is communicated with the second expander 2, and the second expander 2 is also provided with a working medium channel which is communicated with the outside through a second heat regenerator 12, the heat regenerator 7 and the intermediate heat exchanger 8; the condenser 11 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 8 through a booster pump 10, then the intermediate heat exchanger 8 is further provided with a steam channel which is communicated with the steam turbine 9, and the steam turbine 9 is also provided with a low-pressure steam channel which is communicated with the condenser 11; the condenser 11 is also provided with a cooling medium passage communicating with the outside, and the expander 1 and the second expander 2 are connected to the compressor 3 and transmit power.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, the difference is that: the external working medium enters the compressor 3 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path flows through the heat regenerator 7 to absorb heat and then enters the expander 1 to be decompressed and acted, and the second path continuously boosts and heats to a certain extent and then enters the second heat regenerator 12 to absorb heat and heat; the working medium discharged by the second heat regenerator 12 enters the compressor 3 to continuously boost and heat, flows through the solar heat collection system 4 to absorb heat and heat, and then enters the heating furnace 5 to absorb heat and heat; the working medium discharged from the heating furnace 5 flows through the second expander 2 to perform decompression and work, gradually releases heat and lowers temperature through the second heat regenerator 12, the heat regenerator 7 and the intermediate heat exchanger 8, and then is discharged to the outside to form the fuel carrying same-photo-thermal combined cycle power plant.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 6 is realized by:

(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 5, the outside is also provided with an air channel which is communicated with the heating furnace 5 through a heat source heat regenerator 6, and the heating furnace 5 is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator 6; the outside is provided with a working medium channel which is communicated with the compressor 3, the compressor 3 is also provided with a first working medium channel which is communicated with the expander 1 through a heat regenerator 7, the expander 1 is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger 8, the compressor 3 is also provided with a second working medium channel which is communicated with the compressor through a second heat regenerator 12, the compressor 3 is also provided with a working medium channel which is communicated with the heating furnace 5 through a solar heat collecting system 4, the heating furnace 5 is also provided with a working medium channel which is communicated with the second expander 2, the second expander 2 is also provided with a working medium channel which is communicated with the outside through the heat regenerator 7 and the intermediate heat exchanger 8 after the second working medium channel is also provided with a working medium channel which is communicated with the second expander 2 through a second heat regenerator 12; the condenser 11 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 8 through a booster pump 10, then the intermediate heat exchanger 8 is further provided with a steam channel which is communicated with the steam turbine 9, and the steam turbine 9 is also provided with a low-pressure steam channel which is communicated with the condenser 11; the condenser 11 is also provided with a cooling medium passage communicating with the outside, and the expander 1 and the second expander 2 are connected to the compressor 3 and transmit power.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, the difference is that: the external working medium enters the compressor 3 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path flows through the heat regenerator 7 to absorb heat and then enters the expander 1 to be decompressed and acted, and the second path continuously boosts and heats to a certain extent and then enters the second heat regenerator 12 to absorb heat and heat; the working medium discharged by the second heat regenerator 12 enters the compressor 3 to continuously boost and heat, flows through the solar heat collection system 4 to absorb heat and heat, and then enters the heating furnace 5 to absorb heat and heat; the working medium discharged by the heating furnace 5 enters the second expander 2 to perform decompression and work, flows through the second heat regenerator 12 to release heat and cool to a certain extent, then enters the second expander 2 to continue decompression and work, and then flows through the heat regenerator 7 and the intermediate heat exchanger 8 to perform gradual heat release and cool down and discharge to the outside, so that the fuel carrying and photo-thermal combined cycle power device is formed.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 7 is realized by the following steps:

(1) In the combined cycle power plant with the same fuel and light and heat as shown in fig. 1, a diffusion pipe and a second intermediate heat exchanger are added, two paths of working medium channels of the intermediate heat exchanger 8 are communicated with the outside through the second intermediate heat exchanger 14, a condensate pipe of the booster pump 10 is communicated with the intermediate heat exchanger 8, the booster pump 10 is communicated with the second intermediate heat exchanger 14 through the condensate pipe, and then the second intermediate heat exchanger 14 is communicated with the intermediate heat exchanger 8 through the diffusion pipe 13.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, the difference is that: the working medium discharged from the expander 1 is gradually released and cooled through the intermediate heat exchanger 8 and the second intermediate heat exchanger 14, and then discharged to the outside; the working medium discharged by the heat regenerator 7 flows through the intermediate heat exchanger 8 and the second intermediate heat exchanger 14 to release heat and cool gradually, and then is discharged to the outside; the condensate discharged from the condenser 11 is boosted by the booster pump 10, is subjected to heat absorption and temperature rise, partial vaporization and speed increase by the second intermediate heat exchanger 14, is subjected to speed reduction and pressure boost by the diffuser pipe 13, is subjected to heat absorption and vaporization by the intermediate heat exchanger 8, and then enters the steam turbine 9 to be subjected to pressure reduction and work, so that the fuel carrying and photo-thermal combined cycle power plant is formed.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 8 is realized by the following steps:

(1) In the combined cycle power plant with the fuel and the light and heat, shown in fig. 1, a working medium channel communicated with the compressor 3 from outside is canceled, the working medium channel of the expander 1 is communicated with the outside through an intermediate heat exchanger 8 to adjust the working medium channel of the expander 1 to be communicated with the intermediate heat exchanger 8, the working medium channel of the regenerator 7 is communicated with the outside through the intermediate heat exchanger 8 to adjust the working medium channel of the regenerator 7 to be communicated with the intermediate heat exchanger 8, and the working medium channel of the intermediate heat exchanger 8 is communicated with the compressor 3.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, the difference is that: the working medium discharged by the expander 1 enters the intermediate heat exchanger 8 to release heat and cool, and the working medium discharged by the second expander 2 flows through the regenerator 7 to release heat and cool and then enters the intermediate heat exchanger 8 to release heat and cool; the working medium discharged by the intermediate heat exchanger 8 enters the compressor 3 to be boosted and heated, so that the fuel carrying and photo-thermal combined cycle power plant is formed.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 9 is realized by:

(1) In the combined cycle power plant with the same fuel as the photo-thermal system shown in fig. 8, a diffuser pipe and a second intermediate heat exchanger are added, the working medium passage of the intermediate heat exchanger 8 is communicated with the compressor 3 through the second intermediate heat exchanger 14, the condensate pipe of the booster pump 10 is communicated with the intermediate heat exchanger 8, the condensate pipe of the booster pump 10 is communicated with the second intermediate heat exchanger 14, and then the wet steam passage of the second intermediate heat exchanger 14 is communicated with the intermediate heat exchanger 8 through the diffuser pipe 13.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 8, the difference is that: working medium discharged by the expander 1 flows through the intermediate heat exchanger 8 and the second intermediate heat exchanger 14 to release heat and cool gradually, working medium discharged by the heat regenerator 7 flows through the intermediate heat exchanger 8 and the second intermediate heat exchanger 14 to release heat and cool gradually, and working medium discharged by the second intermediate heat exchanger 14 enters the compressor 3 to raise pressure and temperature; the condensate discharged from the condenser 11 is boosted by the booster pump 10, is subjected to heat absorption and temperature rise, partial vaporization and speed increase by the second intermediate heat exchanger 14, is subjected to speed reduction and pressure boost by the diffuser pipe 13, is subjected to heat absorption and vaporization by the intermediate heat exchanger 8, and then enters the steam turbine 9 to be subjected to pressure reduction and work, so that the fuel carrying and photo-thermal combined cycle power plant is formed.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 10 is realized by:

(1) Structurally, in the combined cycle power plant with fuel and light and heat as shown in fig. 8, an expansion speed increaser a is added to replace the expander 1, a second expansion speed increaser B is added to replace the second expander 2, and a dual-energy compressor C is added to replace the compressor 3.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 8, the difference is that: the working medium discharged by the intermediate heat exchanger 8 is boosted, warmed and slowed down by the double-energy compressor C, and then divided into two paths after reaching a certain degree, wherein the first path is subjected to heat absorption and warming by the heat regenerator 7, is subjected to depressurization and work by the expansion speed increaser A, is accelerated and enters the intermediate heat exchanger 8 to emit heat and cool, and the second path is subjected to boosting and warming continuously, is subjected to heat absorption and warming by the solar heat collecting system 4 and is subjected to heat absorption and warming by the heating furnace 5; the working medium discharged by the heating furnace 5 flows through the second expansion speed increaser B to reduce pressure, do work and increase speed, flows through the heat regenerator 7 to release heat and reduce temperature, and then enters the intermediate heat exchanger 8 to release heat and reduce temperature; the work output by the expansion speed increaser A, the second expansion speed increaser B and the steam turbine 9 is provided for the dual-energy compressor C and the external power to form the fuel carrying photo-thermal combined cycle power device.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 11 is realized by:

(1) Structurally, in the combined cycle power plant with fuel and light and heat as shown in fig. 8, a spray pipe D is added to replace the expander 1, a second expansion speed increaser B is added to replace the second expander 2, and a dual-energy compressor C is added to replace the compressor 3.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 8, the difference is that: the working medium discharged by the intermediate heat exchanger 8 is boosted, warmed and slowed down by the double-energy compressor C, and then divided into two paths after reaching a certain degree, wherein the first path is subjected to heat absorption and warming by the heat regenerator 7, is subjected to depressurization and acceleration by the spray pipe D, and is subjected to heat release and cooling by the intermediate heat exchanger 8, and the second path is subjected to continuous boosting and warming, is subjected to heat absorption and warming by the solar heat collecting system 4, and is subjected to heat absorption and warming by the heating furnace 5; the working medium discharged by the heating furnace 5 flows through the second expansion speed increaser B to reduce pressure, do work and increase speed, flows through the heat regenerator 7 to release heat and reduce temperature, and then enters the intermediate heat exchanger 8 to release heat and reduce temperature; the work output by the second expansion speed increaser B and the steam turbine 9 is provided for the dual-energy compressor C and external power to form the fuel carrying photo-thermal combined cycle power plant.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 12 is realized by:

(1) In the combined cycle power plant with the same fuel and light and heat as shown in fig. 8, the air channel outside is communicated with the heating furnace 5 through the heat source regenerator 6 and is adjusted to be communicated with the heating furnace 5 through the heat source regenerator 6 and the solar heat collection system 4, and the second working medium channel of the compressor 3 is communicated with the heating furnace 5 through the solar heat collection system 4 and is adjusted to be communicated with the heating furnace 5 through the second working medium channel of the compressor 3.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, the difference is that: the external air flows through the heat source regenerator 6 and the solar heat collection system 4 to absorb heat gradually and raise temperature, and then enters the heating furnace 5 to participate in combustion; the second path of working medium discharged by the compressor 3 flows through the heating furnace 5 to absorb heat and raise temperature, and then is provided for the second expander 2 to form the fuel carrying photo-thermal combined cycle power plant.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 13 is realized by:

(1) In the structure, in the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, a condensate pipe of the condenser 11 is communicated with the booster pump 10, so that the condensate pipe of the condenser 11 is communicated with the low-temperature heat regenerator 16 through the second booster pump 15, a steam turbine 9 is additionally provided with a steam extraction channel to be communicated with the low-temperature heat regenerator 16, and the condensate pipe of the low-temperature heat regenerator 16 is communicated with the booster pump 10.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, the difference is that: the condensate discharged by the condenser 11 flows through the second booster pump 15 to be boosted and then enters the low-temperature heat regenerator 16 to be mixed with the extracted steam from the steam turbine 9, absorbs heat and heats up, and the extracted steam is released to form condensate; condensate of the low-temperature heat regenerator 16 is boosted by the booster pump 10, is subjected to heat absorption, temperature rise and vaporization by the intermediate heat exchanger 8, and then enters the steam turbine 9 to be subjected to pressure reduction and work; the steam entering the steam turbine 9 is decompressed and works to a certain extent and then is divided into two paths, wherein the first path is provided for the low-temperature heat regenerator 16, and the second path is continuously decompressed and works and then enters the condenser 11 to release heat and condense, so that the fuel carrying same-light-heat combined cycle power device is formed.

The fuel carrying photo-thermal combined cycle power plant shown in fig. 14 is realized by:

(1) Structurally, in the combined cycle power plant with fuel and light and heat as shown in fig. 1, an expansion speed increaser E is added to replace a steam turbine 9, and a new diffuser pipe F is added to replace a booster pump 10.

(2) In the flow, compared with the fuel carrying photo-thermal combined cycle power plant shown in fig. 1, the difference is that: the condensate of the condenser 11 is subjected to speed reduction and pressure increase through a newly added diffuser pipe F, is subjected to heat absorption, temperature rise and vaporization through an intermediate heat exchanger 8, is subjected to pressure reduction, work and speed increase through an expansion speed-increasing turbine E, and then enters the condenser 11 to release heat and be condensed; work output by the expander 1, the second expander 2 and the expansion speed increasing turbine E is provided for the compressor 3 and external power to form the fuel carrying photo-thermal combined cycle power plant.

The fuel carrying and photo-thermal combined cycle power plant has the following effects and advantages:

(1) In the power application process of discharging the gas heat load of the high-temperature expansion machine, the temperature difference loss is small in the process of acquiring the heat load by the heat regenerator; compared with the prior art, the irreversible loss of the temperature difference in the heat transfer process between the upper and lower circulation subsystems is obviously reduced.

(2) The thermodynamic perfection of the thermal power system is obviously improved, the high-temperature heat load high-efficiency power utilization of the high-grade fuel is realized, and the high-temperature heat load utilization level and value of the high-grade fuel are improved.

(3) The flow is reasonable, the structure is simple, the manufacturing cost of the thermal power changing device is reduced, and the economical efficiency of the system is improved.

(4) By utilizing the characteristics of working media, the temperature difference utilization level in the heat transfer process is obviously improved by adopting a simple technical means, and the heat efficiency is improved.

(5) The photo-thermal is used for improving the temperature of the circulating working medium, and obviously reduces the irreversible loss of the temperature difference in the combustion process of the high-grade fuel.

(6) The photo-thermal device can be used for or is beneficial to reducing the boosting ratio of a circulating system, improving the flow of gas circulating working media and being beneficial to constructing a large-load fuel carrying photo-thermal combined cycle power device.

(7) The high-grade fuel carries light and heat to realize high-efficiency thermal power, so that the economic value of converting the light and heat into mechanical energy is greatly improved, and the fuel cost is obviously reduced.

(8) And a plurality of heat regeneration technical means are provided, and the coordination of the device in the aspects of power, thermal efficiency, step-up ratio and the like is effectively improved.

(9) The method provides a plurality of specific technical schemes, is beneficial to improving the reasonable utilization level of energy and expanding the application range and the value of the fuel carrying and photo-thermal combined cycle power plant.

Claims

1. The fuel carrying and photo-thermal combined cycle power plant mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump and a condenser; the outside is provided with a fuel channel which is communicated with the heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source heat regenerator (6), and the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator (6); the outside is provided with a working medium channel which is communicated with the compressor (3), the compressor (3) is also provided with a first working medium channel which is communicated with the expander (1) through the heat regenerator (7), the expander (1) is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger (8), the compressor (3) is also provided with a second working medium channel which is communicated with the heating furnace (5) through the solar heat collection system (4), the heating furnace (5) is also provided with a working medium channel which is communicated with the second expander (2), and the second expander (2) is also provided with a working medium channel which is communicated with the outside through the heat regenerator (7) and the intermediate heat exchanger (8); the condenser (11) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (8) through a booster pump (10), the intermediate heat exchanger (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the expander (1) and the second expander (2) are connected with the compressor (3) and transmit power to form the fuel carrying and photo-thermal combined cycle power plant.

2. The fuel carrying and photo-thermal combined cycle power plant mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump and a condenser; the outside is provided with a fuel channel which is communicated with the heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source heat regenerator (6), and the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator (6); the outside is provided with a working medium channel which is communicated with the compressor (3), the compressor (3) is also provided with a first working medium channel which is communicated with the expander (1) through a heat regenerator (7), the expander (1) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (8), the compressor (3) is also provided with a second working medium channel which is communicated with the heating furnace (5) through a solar heat collection system (4), the heating furnace (5) is also provided with a working medium channel which is communicated with the second expander (2), and the second expander (2) is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger (8) after the second expander (2) is also provided with a working medium channel which is communicated with the heat regenerator (7) by itself; the condenser (11) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (8) through a booster pump (10), the intermediate heat exchanger (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the expander (1) and the second expander (2) are connected with the compressor (3) and transmit power to form the fuel carrying and photo-thermal combined cycle power plant.

3. The fuel carrying same-light-heat combined cycle power device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source heat regenerator (6), and the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator (6); the outside is provided with a working medium channel which is communicated with the compressor (3), the compressor (3) is also provided with a first working medium channel which is communicated with the expander (1) through a heat regenerator (7), the expander (1) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (8), the compressor (3) is also provided with a second working medium channel which is communicated with the heating furnace (5) through a second heat regenerator (12) and a solar heat collecting system (4), the heating furnace (5) is also provided with a working medium channel which is communicated with the second expander (2), and the second expander (2) is also provided with a working medium channel which is communicated with the outside through a second heat regenerator (12), the heat regenerator (7) and the intermediate heat exchanger (8); the condenser (11) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (8) through a booster pump (10), the intermediate heat exchanger (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the expander (1) and the second expander (2) are connected with the compressor (3) and transmit power to form the fuel carrying and photo-thermal combined cycle power plant.

4. The fuel carrying same-light-heat combined cycle power device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source heat regenerator (6), and the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator (6); the outside is provided with a working medium channel which is communicated with the compressor (3), the compressor (3) is also provided with a first working medium channel which is communicated with the expander (1) through a heat regenerator (7), the expander (1) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (8), the compressor (3) is also provided with a second working medium channel which is communicated with the heating furnace (5) through a second heat regenerator (12) and a solar heat collecting system (4), the heating furnace (5) is also provided with a working medium channel which is communicated with the second expander (2), and the second expander (2) is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger (8) after the second heat regenerator (12) and the heat regenerator (7) are also communicated with the second expander (2); the condenser (11) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (8) through a booster pump (10), the intermediate heat exchanger (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the expander (1) and the second expander (2) are connected with the compressor (3) and transmit power to form the fuel carrying and photo-thermal combined cycle power plant.

5. The fuel carrying same-light-heat combined cycle power device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source heat regenerator (6), and the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator (6); the outside is provided with a working medium channel which is communicated with the compressor (3), the compressor (3) is also provided with a first working medium channel which is communicated with the expander (1) through a heat regenerator (7), the expander (1) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (8), the compressor (3) is also provided with a second working medium channel which is communicated with the compressor (3) through a second heat regenerator (12), the compressor (3) is also provided with a working medium channel which is communicated with the heating furnace (5) through a solar heat collecting system (4), the heating furnace (5) is also provided with a working medium channel which is communicated with the second expander (2), and the second expander (2) is also provided with a working medium channel which is communicated with the outside through the second heat regenerator (12), the heat regenerator (7) and the intermediate heat exchanger (8); the condenser (11) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (8) through a booster pump (10), the intermediate heat exchanger (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the expander (1) and the second expander (2) are connected with the compressor (3) and transmit power to form the fuel carrying and photo-thermal combined cycle power plant.

6. The fuel carrying same-light-heat combined cycle power device mainly comprises an expander, a second expander, a compressor, a solar heat collecting system, a heating furnace, a heat source regenerator, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source heat regenerator (6), and the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source heat regenerator (6); the outside is provided with a working medium channel which is communicated with the compressor (3), the compressor (3) is also provided with a first working medium channel which is communicated with the expander (1) through a heat regenerator (7), the expander (1) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (8), the compressor (3) is also provided with a second working medium channel which is communicated with the compressor (3) through a second heat regenerator (12), the compressor (3) is also provided with a working medium channel which is communicated with the heating furnace (5) through a solar heat collecting system (4), the heating furnace (5) is also provided with a working medium channel which is communicated with the second expander (2), and the second expander (2) is also provided with a working medium channel which is communicated with the outside through the heat regenerator (7) and the intermediate heat exchanger (8) after the second expander (2) is also provided with a working medium channel which is communicated with the compressor (2); the condenser (11) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (8) through a booster pump (10), the intermediate heat exchanger (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the expander (1) and the second expander (2) are connected with the compressor (3) and transmit power to form the fuel carrying and photo-thermal combined cycle power plant.

7. In the combined cycle power plant with the same fuel and the same light and heat, a diffuser pipe and a second intermediate heat exchanger are added in any one of the combined cycle power plant with the same fuel and the light and heat of claims 1-6, two paths of working medium channels of the intermediate heat exchanger (8) are communicated with the outside and adjusted to be communicated with the outside through the second intermediate heat exchanger (14), two paths of working medium channels of the intermediate heat exchanger (8) are communicated with the outside, a condensate pipeline of the booster pump (10) is communicated with the intermediate heat exchanger (8) and adjusted to be communicated with the second intermediate heat exchanger (14) through the diffuser pipe (13), and then a wet steam channel of the second intermediate heat exchanger (14) is communicated with the intermediate heat exchanger (8), so that the combined cycle power plant with the same fuel and the light and heat is formed.

8. In the fuel carrying and photo-thermal combined cycle power plant of any one of claims 1, 3, 5 and 6, a working medium channel communicated with a compressor (3) is canceled, the working medium channel of an expander (1) is communicated with the outside through an intermediate heat exchanger (8) to be regulated to be communicated with the working medium channel of the expander (1) and the intermediate heat exchanger (8), the working medium channel of a regenerator (7) is regulated to be communicated with the intermediate heat exchanger (8) through the intermediate heat exchanger (8) and the outside to be communicated with the working medium channel of the regenerator (7), and the working medium channel of the intermediate heat exchanger (8) is communicated with the compressor (3), so that the fuel carrying and photo-thermal combined cycle power plant is formed.

9. In the fuel carrying and photo-thermal combined cycle power plant according to claim 2 or claim 4, a working medium channel communicated with the compressor (3) is canceled, the working medium channel of the expander (1) is communicated with the outside through an intermediate heat exchanger (8) to be adjusted to be communicated with the intermediate heat exchanger (8) through the working medium channel of the expander (1), the working medium channel of the second expander (2) is communicated with the outside through the intermediate heat exchanger (8) to be adjusted to be communicated with the intermediate heat exchanger (8) through the working medium channel of the second expander (2), and the intermediate heat exchanger (8) is provided with the working medium channel to be communicated with the compressor (3), so that the fuel carrying and photo-thermal combined cycle power plant is formed.

10. In the combined cycle power plant with the same fuel and the same light and heat, a diffuser pipe and a second intermediate heat exchanger are added in any one of the combined cycle power plant with the same fuel and the light and heat of claims 8-9, the communication of a working medium channel of the intermediate heat exchanger (8) with the compressor (3) is adjusted to be that the working medium channel of the intermediate heat exchanger (8) is communicated with the compressor (3) through the second intermediate heat exchanger (14), the communication of a condensate pipe of the booster pump (10) with the intermediate heat exchanger (8) is adjusted to be that the condensate pipe of the booster pump (10) is communicated with the second intermediate heat exchanger (14), and then the second intermediate heat exchanger (14) is further communicated with the intermediate heat exchanger (8) through the diffuser pipe (13), so that the combined cycle power plant with the same fuel and the light and heat is formed.

11. In the fuel-carrying photo-thermal combined cycle power plant of any one of claims 8-10, an expansion speed increaser (A) is added to replace the expansion machine (1), a second expansion speed increaser (B) is added to replace the second expansion machine (2), and a dual-energy compressor (C) is added to replace the compressor (3) so as to form the fuel-carrying photo-thermal combined cycle power plant.

12. In the fuel carrying photo-thermal combined cycle power plant of any one of claims 8-10, a spray pipe (D) is added to replace an expander (1), a second expansion speed increaser (B) is added to replace a second expander (2), a dual-energy compressor (C) is added to replace a compressor (3), and the fuel carrying photo-thermal combined cycle power plant is formed.

13. In the fuel carrying and photo-thermal combined cycle power plant of any one of claims 1-2 and 5-6, an external air channel is communicated with a heating furnace (5) through a heat source regenerator (6) and is regulated to be communicated with the heating furnace (5) through the heat source regenerator (6) and a solar heat collection system (4), a second working medium channel of a compressor (3) is communicated with the heating furnace (5) through the solar heat collection system (4) and is regulated to be communicated with the heating furnace (5) through a second working medium channel of the compressor (3), and the fuel carrying and photo-thermal combined cycle power plant is formed.

14. In the fuel carrying and photo-thermal combined cycle power plant, in any one of claims 3-4, an air channel outside is communicated with a heating furnace (5) through a heat source regenerator (6) and is adjusted to be communicated with the heating furnace (5) through the heat source regenerator (6) and a solar heat collection system (4), a second working medium channel in a compressor (3) is communicated with the heating furnace (5) through a second regenerator (12) and the solar heat collection system (4) and is adjusted to be communicated with the heating furnace (5) through a second regenerator (12) through a second working medium channel in the compressor (3), so that the fuel carrying and photo-thermal combined cycle power plant is formed.

15. In the combined cycle power plant with the same fuel and the same light and heat, a second booster pump and a low-temperature heat regenerator are added in any one of the combined cycle power plants with the same fuel and the light and heat according to the claims 1-14, a condensate pipe arranged on a condenser (11) is communicated with a booster pump (10) and is adjusted to be communicated with a low-temperature heat regenerator (16) through a second booster pump (15), a steam turbine (9) is additionally provided with a steam extraction channel and is communicated with the low-temperature heat regenerator (16), and the low-temperature heat regenerator (16) is further communicated with the booster pump (10) through the condensate pipe, so that the combined cycle power plant with the same fuel and the light and heat is formed.

16. The fuel carrying and photo-thermal combined cycle power plant is formed by adding an expansion speed-increasing steam turbine (E) and replacing a steam turbine (9) in any one of the fuel carrying and photo-thermal combined cycle power plants of claims 7 and 10.

17. In the fuel carrying photo-thermal combined cycle power plant of any one of claims 1-15, an expansion speed increaser (E) is added to replace a steam turbine (9), a newly added diffuser pipe (F) is added to replace a booster pump (10), and the fuel carrying photo-thermal combined cycle power plant is formed.