CN117759373A

CN117759373A - Fuel carrying same-photo-thermal single-working-medium combined cycle steam power device

Info

Publication number: CN117759373A
Application number: CN202311874386.4A
Authority: CN
Inventors: 李鸿瑞; 李华玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-06
Filing date: 2023-12-29
Publication date: 2024-03-26

Abstract

The invention provides a fuel carrying photo-thermal single-working-medium combined cycle steam power device, and belongs to the technical field of thermodynamics and thermal power. 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 regenerator, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the compressor is provided with a first steam channel which is communicated with the evaporator through the regenerator and a second expander, the compressor is also provided with a second steam channel which is communicated with the solar heat collection system, the condenser is communicated with the solar heat collection system through a booster pump and the evaporator, the solar heat collection system is also provided with a steam channel which is communicated with the evaporator through the second compressor, the heating furnace, the expander and the regenerator, and the evaporator is also provided with a low-pressure steam channel which is respectively communicated with the compressor and the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form the fuel carrying photo-thermal single-working-medium combined cycle steam power device.

Description

Fuel carrying same-photo-thermal single-working-medium combined cycle steam power device

Technical field:

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

The background technology is as follows:

the fuel and the light and heat can realize thermal work; different system devices are constructed by adopting the same or different thermal power principles, and corresponding construction cost is paid, so that the conversion of fuel or light and heat into mechanical energy is realized; obviously, it is of positive significance to try to reduce the number of thermal power devices.

The method is limited by one or more factors such as working principle, working medium property, material property, equipment manufacturing level and the like, and has irreversible temperature difference loss in the fuel combustion process and irreversible temperature difference loss in the photo-thermal application process; under the traditional technical condition, the higher the temperature of a heat source formed by fuel or solar energy is, the larger the irreversible loss of the temperature difference in the heat source forming or application process is.

In order to increase the thermal efficiency, it is necessary to bring the circulating medium to as high a temperature as possible after the high-temperature load is obtained; however, at this time, the temperature of the circulating working medium discharged by the high-temperature expander is increased, the heat discharge is increased, and the heat transfer temperature difference loss in the thermodynamic system is increased, which has an adverse effect on the improvement of the heat-variable work efficiency.

The invention provides a fuel carrying and photo-thermal single-working-medium combined cycle steam power device which has the advantages of flexible connection, reasonable flow, simple structure, remarkably reduced irreversible loss of systematic temperature difference of a thermal power device and reasonable thermodynamic perfection and high cost performance, and provides a principle of simply, actively, safely and efficiently utilizing energy to obtain power.

The invention comprises the following steps:

the invention mainly aims to provide a fuel carrying photo-thermal single-working-medium combined cycle steam power device, and the specific invention is described as follows:

1. the fuel carrying same-photo-thermal single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace and a heat source heat 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 regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the compressor is provided with a first steam channel which is communicated with the second expander through the regenerator, the second expander is also provided with a low-pressure steam channel which is communicated with the evaporator, the compressor is also provided with a second steam channel which is communicated with the solar heat collection system, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the evaporator is further provided with a steam channel which is communicated with the solar heat collection system, the solar heat collection system is also provided with a steam channel which is communicated with the heating furnace through the second compressor, the heating furnace is also provided with a steam channel which is communicated with the expander, the expander is also provided with a low-pressure steam channel which is communicated with the evaporator through the regenerator, and the evaporator is provided with the low-pressure steam channel which is divided into two paths, namely the first path which is communicated with the compressor and the second path 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 is connected with the compressor and the second compressor and transmits power to form a fuel carrying same-photo-thermal single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor, the booster pump and the second compressor and transmits power.

2. The fuel carrying same-photo-thermal single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace through a heat source regenerator, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the compressor is provided with a first steam channel which is communicated with the second expander through the regenerator, the second expander is also provided with a low-pressure steam channel which is communicated with the evaporator, the compressor is also provided with a second steam channel which is communicated with the solar heat collection system after the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the evaporator is also provided with a steam channel which is communicated with the solar heat collection system, the solar heat collection system is also provided with a steam channel which is communicated with the heating furnace through the second compressor, the heating furnace is also provided with a steam channel which is communicated with the expander, the expander is also provided with a low-pressure steam channel which is communicated with the evaporator after the heat regenerator is communicated with the evaporator, and the low-pressure steam channel is divided into two paths, namely the first path is communicated with the compressor and the second path is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form a fuel carrying same-photo-thermal single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor, the booster pump and the second compressor and transmits power.

3. The fuel carrying same-photo-thermal single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat 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 regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the compressor is provided with a first steam channel which is communicated with the second expander through the regenerator, the second expander is also provided with a low-pressure steam channel which is communicated with the evaporator, the compressor is also provided with a second steam channel which is communicated with the solar heat collection system, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the evaporator is further provided with a steam channel which is communicated with the solar heat collection system, the solar heat collection system is also provided with a steam channel which is communicated with the heating furnace through the second compressor and the second regenerator, the heating furnace is also provided with a steam channel which is communicated with the expander, the expander is also provided with a low-pressure steam channel which is divided into two paths, namely the first path is communicated with the compressor and the second path is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form a fuel carrying same-photo-thermal single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor, the booster pump and the second compressor and transmits power.

4. The fuel carrying same-photo-thermal single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat 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 regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the compressor is provided with a first steam channel which is communicated with the second expander through the regenerator, the second expander is also provided with a low-pressure steam channel which is communicated with the evaporator, the compressor is also provided with a second steam channel which is communicated with the solar heat collection system, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the evaporator is further provided with a steam channel which is communicated with the solar heat collection system, the solar heat collection system is also provided with a steam channel which is communicated with the heating furnace through the second regenerator and the second compressor, the heating furnace is also provided with a steam channel which is communicated with the expander, the expander is also provided with a low-pressure steam channel which is divided into two paths, namely the first path is communicated with the compressor and the second path is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form a fuel carrying same-photo-thermal single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor, the booster pump and the second compressor and transmits power.

5. The fuel carrying same-photo-thermal single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat 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 regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the compressor is provided with a first steam channel which is communicated with the second expander through the regenerator, the second expander is also provided with a low-pressure steam channel which is communicated with the evaporator, the compressor is also provided with a second steam channel which is communicated with the solar heat collection system through the second regenerator, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the evaporator is further provided with a steam channel which is communicated with the solar heat collection system through the second regenerator, the solar heat collection system is also provided with a steam channel which is communicated with the heating furnace through the second compressor, the heating furnace is also provided with a steam channel which is communicated with the expander, and the expander is also provided with a low-pressure steam channel which is divided into two paths, namely the first path which is communicated with the compressor and the second path 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 is connected with the compressor and the second compressor and transmits power to form a fuel carrying same-photo-thermal single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor, the booster pump and the second compressor and transmits power.

6. The fuel carrying same-photo-thermal single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace through a heat source regenerator, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the compressor is provided with a first steam channel which is communicated with a second expander through the regenerator, the second expander is provided with a low-pressure steam channel which is communicated with the evaporator, the compressor is provided with a second steam channel which is communicated with a solar heat collecting system, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the evaporator is provided with a steam channel which is communicated with the solar heat collecting system, the solar heat collecting system is provided with a steam channel which is communicated with the heating furnace through the second compressor and the second regenerator, the heating furnace is provided with a steam channel which is communicated with the expander, the expander is provided with a low-pressure steam channel which is communicated with the evaporator through the regenerator after the second regenerator is communicated with the expander, and the low-pressure steam channel is divided into two paths, namely the first path which is communicated with the compressor and the second path 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 is connected with the compressor and the second compressor and transmits power to form a fuel carrying same-photo-thermal single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor, the booster pump and the second compressor and transmits power.

7. The fuel carrying same-photo-thermal single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace through a heat source regenerator, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the compressor is provided with a first steam channel which is communicated with a second expander through the regenerator, the second expander is provided with a low-pressure steam channel which is communicated with the evaporator, the compressor is provided with a second steam channel which is communicated with a solar heat collecting system, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the evaporator is provided with a steam channel which is communicated with the solar heat collecting system, the solar heat collecting system is provided with a steam channel which is communicated with the heating furnace through the second regenerator and the second compressor, the heating furnace is provided with a steam channel which is communicated with the expander, the expander is provided with a low-pressure steam channel which is communicated with the evaporator through the regenerator after the second regenerator is communicated with the expander, and the low-pressure steam channel is divided into two paths, namely the first path which is communicated with the compressor and the second path 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 is connected with the compressor and the second compressor and transmits power to form a fuel carrying same-photo-thermal single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor, the booster pump and the second compressor and transmits power.

8. The fuel carrying same-photo-thermal single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat 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 regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the compressor is provided with a first steam channel which is communicated with a second expander through the regenerator, the second expander is also provided with a low-pressure steam channel which is communicated with the evaporator, the compressor is also provided with a second steam channel which is communicated with the solar heat collection system through the second regenerator, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the evaporator is also provided with a steam channel which is communicated with the solar heat collection system through the second regenerator, the solar heat collection system is also provided with a steam channel which is communicated with the heating furnace through the second compressor, the heating furnace is also provided with a steam channel which is communicated with the expander, and the expander is also provided with a low-pressure steam channel which is communicated with the evaporator through the regenerator after the second regenerator is communicated with the evaporator, and the low-pressure steam channel is divided into two paths, namely the first path which is communicated with the compressor and the second path 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 is connected with the compressor and the second compressor and transmits power to form a fuel carrying same-photo-thermal single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor, the booster pump and the second compressor and transmits power.

9. The fuel carrying and photo-thermal single-working-medium combined cycle steam power device is characterized in that in the fuel carrying and photo-thermal single-working-medium combined cycle steam power device in the 3 rd or 6 th, a second compressor with a steam channel is communicated with a heating furnace through a second heat regenerator, and the second compressor with the steam channel is adjusted to be communicated with the heating furnace after the second compressor with the steam channel is communicated with the second heat regenerator, so that the fuel carrying and photo-thermal single-working-medium combined cycle steam power device is formed.

10. The combined cycle steam power plant with the same photo-thermal single-working medium is formed by adding a second booster pump and a low-temperature heat regenerator in any one of the combined cycle steam power plants with the same photo-thermal single-working medium, wherein the condenser is provided with a condensate pipe and the booster pump to be communicated with the low-temperature heat regenerator through the second booster pump, a steam extraction channel is additionally arranged in the compressor to be communicated with the low-temperature heat regenerator, and the low-temperature heat regenerator is further provided with the condensate pipe and the booster pump to be communicated with the fuel.

11. The combined cycle steam power plant with the fuel carrying the photo-thermal single working medium is formed by adding a second evaporator and a diffusion pipe in any one of the combined cycle steam power plant with the fuel carrying the photo-thermal single working medium in the 1 st and the 3-9 th, adjusting the communication between a low-pressure steam channel of a regenerator and the evaporator to be the communication between the low-pressure steam channel of the regenerator and the second evaporator through the evaporator, adjusting the communication between the low-pressure steam channel of the second expander and the evaporator to be the communication between the low-pressure steam channel of the second expander and the second evaporator through the evaporator, adjusting the communication between the low-pressure steam channel of the evaporator and the compressor and the condenser to be the communication between the low-pressure steam channel of the second evaporator and the compressor respectively, adjusting the communication between the condensate channel of the condenser and the condenser through the booster pump and the second evaporator to be the communication between the condensate channel of the condenser and the second evaporator through the booster pump and the diffusion pipe, and the communication between the second evaporator and the wet steam channel of the second evaporator.

12. The fuel carrying and photo-thermal single-working-medium combined cycle steam power device is characterized in that a second evaporator and a diffusion pipe are added in the fuel carrying and photo-thermal single-working-medium combined cycle steam power device in the 2 nd step, the low-pressure steam channel of the expander is communicated with the evaporator to be adjusted to be communicated with the low-pressure steam channel of the expander through the evaporator and communicated with the second evaporator, the low-pressure steam channel of the second expander is communicated with the evaporator to be adjusted to be communicated with the second evaporator through the evaporator, the low-pressure steam channel of the evaporator is respectively communicated with the compressor and the condenser to be respectively communicated with the low-pressure steam channel of the second evaporator and the compressor, the condensate pipe of the condenser is adjusted to be communicated with the second evaporator through the booster pump after the condensate pipe of the condenser is communicated with the second evaporator, and the wet steam channel of the second evaporator is communicated with the evaporator through the booster pump, and the photo-thermal single-working-medium combined cycle steam power device is formed.

13. The fuel carrying and photo-thermal single-working-medium combined cycle steam power plant is characterized in that in any one of the fuel carrying and photo-thermal single-working-medium combined cycle steam power plants in the 1 st to 12 th, 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, a newly added diffuser pipe is added and replaces the booster pump, a second dual-energy compressor is added and replaces the second compressor, and the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant is formed.

Description of the drawings:

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

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

FIG. 3 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal single-working-medium combined cycle steam power plant according to the 3 rd principle.

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

FIG. 5 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal single-working-medium combined cycle steam power plant according to the 5 th principle.

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

FIG. 7 is a schematic diagram of a 7 th principle thermodynamic system of a combined cycle steam power plant with a single photo-thermal working medium on fuel in accordance with the present invention.

FIG. 8 is a schematic thermodynamic system diagram of a fuel-carrying photo-thermal single-working-medium combined cycle steam power plant according to the 8 th principle.

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

FIG. 10 is a schematic diagram of a 10 th principle thermodynamic system of a combined cycle steam power plant with a single photo-thermal working medium on fuel in accordance with the present invention.

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

FIG. 12 is a schematic diagram of a 12 th principle thermodynamic system of a combined cycle steam power plant with a single photo-thermal working medium on fuel in accordance with the present invention.

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

The following brief description is given here about the photo-thermal and solar heat collection system:

(1) Solar heat collection systems, also known as solar heating systems, refer to heating systems that utilize a heat collector to convert solar radiant energy into high temperature heat (simply referred to as photo-thermal), which can be used to provide a driving heat load to a thermodynamic cycle system; it is mainly composed of heat collector and related necessary auxiliary facilities.

(2) 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.

(3) It is apparent that solar energy collection systems in a broader sense include various systems that employ various means and devices to convert solar energy into thermal energy at different temperatures.

(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 flowing through a solar heat collection system through a heat exchanger.

The specific embodiment is as follows:

it is to be noted that the description of the structure and the flow is not repeated if necessary; obvious procedures are not described. The invention is described in detail below with reference to the drawings and examples.

The fuel carrying and photo-thermal single-working-medium combined cycle steam 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 booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 10, the outside is also provided with an air channel which is communicated with the heating furnace 10 through a heat source regenerator 11, the heating furnace 10 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 11, the compressor 3 is provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a solar heat collection system 8, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through a booster pump 4, then the evaporator 7 is further provided with a steam channel which is communicated with the solar heat collection system 8, the solar heat collection system 8 is also provided with a steam channel which is communicated with the heating furnace 10 through a second compressor 9, the heating furnace 10 is also provided with a steam channel which is communicated with an expander 1, the expander 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 through the regenerator 5, and the evaporator 7 is also provided with a low-pressure steam channel which is divided into two paths, namely, the first path is communicated with the compressor 3 and the second path is communicated with the condenser 6; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 connects the compressor 3 and the second compressor 9 and transmits power.

(2) In the flow, external fuel enters the heating furnace 10, external air enters the heating furnace 10 after absorbing heat and raising temperature through the heat source regenerator 11, the fuel and the air are mixed in the heating furnace 10 and combusted to generate high-temperature fuel gas, the fuel gas releases heat on steam flowing through the heating furnace 10, and then the fuel gas releases heat and lowers the temperature through the heat source regenerator 11 and is discharged outwards; part of low-pressure steam discharged by the evaporator 7 enters the compressor 3 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path is subjected to heat absorption and heating through the heat regenerator 5 and is subjected to depressurization and work through the second expander 2 and then is provided for the evaporator 7, and the second path is subjected to heat absorption and heating through the solar heat collection system 8 after the boosting and heating are continued; the condensate discharged by the condenser 6 is boosted by the booster pump 4, is absorbed by the evaporator 7 to be heated and vaporized, and then enters the solar heat collection system 8 to absorb heat to be heated; the second compressor 9 of the steam discharged by the solar heat collection system 8 is boosted and heated, absorbs heat and heats up through the heating furnace 10, reduces pressure and works through the expander 1, releases heat and cools down through the heat regenerator 5, and then is provided for the evaporator 7; the low-pressure steam discharged by the heat regenerator 5 and the second expander 2 flows through the evaporator 7 to release heat and cool, and then is divided into two paths, wherein the first path enters the compressor 3 to raise the pressure and the temperature, and the second path enters the condenser 6 to release heat and condense; the solar energy provides a driving heat load through the solar heat collection system 8, the fuel provides a driving heat load through the heating furnace 10, the cooling medium takes away a low-temperature heat load through the condenser 6, and the air and the fuel gas take away a discharging heat load through the inlet and outlet heating furnace 10; work output by the expander 1 and the second expander 2 is provided for the compressor 3, the second compressor 9 and external power, or work output by the expander 1 and the second expander 2 is provided for the compressor 3, the booster pump 4, the second compressor 9 and external power, so that the fuel carrying and photo-thermal single-working-medium combined cycle steam power device is formed.

The fuel carrying and photo-thermal single-working-medium combined cycle steam 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 booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 10, the outside is also provided with an air channel which is communicated with the heating furnace 10 through a heat source regenerator 11, the heating furnace 10 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 11, the compressor 3 is provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a solar heat collection system 8, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through a booster pump 4, the evaporator 7 is further provided with a steam channel which is communicated with the solar heat collection system 8, the solar heat collection system 8 is also provided with a steam channel which is communicated with the heating furnace 10 through a second compressor 9, the heating furnace 10 is also provided with a steam channel which is communicated with the expander 1 after the expander 1 is also provided with a steam channel which is communicated with the evaporator 5, the evaporator 7 is also provided with a low-pressure steam channel which is divided into two paths-namely a first path which is communicated with the compressor 3 and a second path which is communicated with the condenser 6; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 connects the compressor 3 and the second compressor 9 and transmits power.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged by the heating furnace 10 enters the expander 1 to perform decompression and work, flows through the regenerator 5 to release heat and cool after reaching a certain degree, enters the expander 1 to continue decompression and work, and then is provided for the evaporator 7 to form the fuel carrying same-photo-thermal single-working-medium combined cycle steam power device.

The fuel carrying and photo-thermal single-working-medium combined cycle steam 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 booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 10, the outside is also provided with an air channel which is communicated with the heating furnace 10 through a heat source regenerator 11, the heating furnace 10 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 11, the compressor 3 is also provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a solar heat collection system 8, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through a booster pump 4, then the evaporator 7 is further provided with a steam channel which is communicated with the solar heat collection system 8, the solar heat collection system 8 is also provided with a steam channel which is communicated with the heating furnace 10 through a second compressor 9 and a second regenerator 12, the expander 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 through the second regenerator 12 and the regenerator 5, and the evaporator 7 is also provided with a low-pressure steam channel which is divided into two paths-a first path which is communicated with the compressor 3 and a second path which is communicated with the condenser 6; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 connects the compressor 3 and the second compressor 9 and transmits power.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged by the second compressor 9 is gradually absorbed in heat and increased in temperature through the second heat regenerator 12 and the heating furnace 10, is subjected to depressurization and work through the expander 1, is gradually released in heat and reduced in temperature through the second heat regenerator 12 and the heat regenerator 5, and is then supplied to the evaporator 7 to form the fuel carrying photo-thermal single-working-medium combined cycle steam power device.

The fuel carrying and photo-thermal single-working-medium combined cycle steam 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 booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 10, the outside is also provided with an air channel which is communicated with the heating furnace 10 through a heat source regenerator 11, the heating furnace 10 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 11, the compressor 3 is also provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a solar heat collection system 8, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through a booster pump 4, then the evaporator 7 is further provided with a steam channel which is communicated with the solar heat collection system 8, the solar heat collection system 8 is also provided with a steam channel which is communicated with the heating furnace 10 through a second regenerator 12 and a second compressor 9, the expander 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 through the second regenerator 12 and the regenerator 5, and the evaporator 7 is also provided with a low-pressure steam channel which is divided into two paths-a first path which is communicated with the compressor 3 and a second path which is communicated with the condenser 6; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 connects the compressor 3 and the second compressor 9 and transmits power.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: steam discharged by the solar heat collection system 8 is subjected to heat absorption and temperature rise through the second heat regenerator 12, is subjected to pressure rise and temperature rise through the second compressor 9, is subjected to heat absorption and temperature rise through the heating furnace 10, is subjected to pressure reduction and work through the expander 1, is subjected to gradual heat release and temperature reduction through the second heat regenerator 12 and the heat regenerator 5, and is then supplied to the evaporator 7 to form the fuel carrying and photo-thermal single-working-medium combined cycle steam power device.

The fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 5 is realized by the following steps:

(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 10, the outside is also provided with an air channel which is communicated with the heating furnace 10 through a heat source regenerator 11, the heating furnace 10 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 11, the compressor 3 is also provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a solar heat collecting system 8 through a second regenerator 12 after the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through a booster pump 4, the solar heat collecting system 8 is also provided with a steam channel which is communicated with the heating furnace 10 through a second compressor 9, the heating furnace 10 is also provided with a steam channel which is communicated with the expander 1, the expander 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 through the second regenerator 12 and the regenerator 5, and the evaporator 7 is also provided with a low-pressure steam channel which is divided into two paths-a first path which is communicated with the compressor 3 and a second path which is communicated with the condenser 6; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 connects the compressor 3 and the second compressor 9 and transmits power.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the high-pressure steam discharged by the evaporator 7 and the compressor 3 flows through the second heat regenerator 12 to absorb heat and raise temperature, and is then supplied to the solar heat collection system 8; the low-pressure steam discharged by the expander 1 flows through the second heat regenerator 12, the heat regenerator 5 and the evaporator 7 to release heat and cool gradually, and then respectively enters the compressor 3 to raise the pressure and raise the temperature and enters the condenser 6 to release heat and condense, so that the fuel carrying same-photo-thermal single-working-medium combined cycle steam power device is formed.

The fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 6 is realized by the following steps:

(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 10, the outside is also provided with an air channel which is communicated with the heating furnace 10 through a heat source regenerator 11, the heating furnace 10 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 11, the compressor 3 is provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a solar heat collection system 8, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through a booster pump 4, the evaporator 7 is also provided with a steam channel which is communicated with a solar heat collection system 8, the solar heat collection system 8 is also provided with a steam channel which is communicated with the heating furnace 10 through a second compressor 9 and a second regenerator 12, the expander 1 is also provided with a steam channel which is communicated with the regenerator 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 through the regenerator 5 after being communicated with the evaporator 12, and the evaporator 7 is also provided with a low-pressure steam channel which is divided into two paths, namely, the first path is communicated with the compressor 3 and the condenser 6 is communicated with the condenser 6; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 connects the compressor 3 and the second compressor 9 and transmits power.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged from the second compressor 9 is gradually absorbed in heat and increased in temperature through the second heat regenerator 12 and the heating furnace 10, and then is supplied to the expander 1; the steam enters the expander 1 to perform decompression and work, flows through the second heat regenerator 12 to release heat and cool down to a certain extent, enters the expander 1 to continue decompression and work, flows through the heat regenerator 5 to release heat and cool down, and then is provided for the evaporator 7 to form the fuel carrying same-photo-thermal single-working-medium combined cycle steam power device.

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

(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 10, the outside is also provided with an air channel which is communicated with the heating furnace 10 through a heat source regenerator 11, the heating furnace 10 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 11, the compressor 3 is provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a solar heat collection system 8, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through a booster pump 4, the evaporator 7 is also provided with a steam channel which is communicated with a solar heat collection system 8, the solar heat collection system 8 is also provided with a steam channel which is communicated with the heating furnace 10 through a second regenerator 12 and a second compressor 9, the expander 1 is also provided with a steam channel which is communicated with the regenerator 5 and the evaporator 7 through the regenerator 12, and the evaporator 7 is also provided with a low-pressure steam channel which is also communicated with the evaporator 7 is divided into two paths, namely, the first path is communicated with the compressor 3 and the second path is communicated with the condenser 6; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 connects the compressor 3 and the second compressor 9 and transmits power.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: steam discharged by the solar heat collection system 8 flows through the second heat regenerator 12 to absorb heat and raise temperature, and then is provided for the second compressor 9; the steam discharged by the heating furnace 10 enters the expander 1 to perform decompression and work to a certain extent, then flows through the second heat regenerator 12 to release heat and reduce temperature, enters the expander 1 to continue decompression and work, flows through the heat regenerator 5 to release heat and reduce temperature, and then is supplied to the evaporator 7 to form the fuel carrying and photo-thermal single-working-medium combined cycle steam power device.

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

(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 10, the outside is also provided with an air channel which is communicated with the heating furnace 10 through a heat source regenerator 11, the heating furnace 10 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 11, the compressor 3 is provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a solar heat collecting system 8 through a second regenerator 12, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through a booster pump 4, the evaporator 7 is also provided with a steam channel which is communicated with the solar heat collecting system 8 through the second regenerator 12, the solar heat collecting system 8 is also provided with a steam channel which is communicated with the heating furnace 10 through a second compressor 9, the heating furnace 10 is also provided with a steam channel which is communicated with an expander 1, the expander 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 through the regenerator 5 after the second regenerator 12 is communicated with the expander 1, and the low-pressure steam channel is also communicated with the evaporator 7 into two paths, namely the first path which is communicated with the compressor 3 and the second path which is communicated with the compressor 6; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 connects the compressor 3 and the second compressor 9 and transmits power.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the high-pressure steam discharged by the evaporator 7 and the compressor 3 flows through the second heat regenerator 12 to absorb heat and raise temperature, and is then supplied to the solar heat collection system 8; the steam discharged by the heating furnace 10 enters the expander 1 to perform decompression and work to a certain extent, then flows through the second heat regenerator 12 to release heat and cool, enters the expander 1 to continue decompression and work, then flows through the heat regenerator 5 to release heat and cool and is provided for the evaporator 7, and the fuel carrying and photo-thermal single-working medium combined cycle steam power device is formed.

The fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 9 is realized by the following steps:

(1) In the combined cycle steam power plant with the same fuel as the photo-thermal single working medium shown in fig. 3, the second compressor 9 is communicated with the heating furnace 10 through the second heat regenerator 12, so that the second compressor 9 is adjusted to be communicated with the heating furnace 10 through the second heat regenerator 12 after the second compressor 9 is communicated with the self through the second heat regenerator 12, and then the second compressor 9 is communicated with the heating furnace 10 through the steam channel.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 3, the difference is that: the steam discharged by the solar heat collection system 8 enters the second compressor 9 to be boosted and heated to a certain extent, then flows through the second heat regenerator 12 to absorb heat and heat to be heated, enters the second compressor 9 to be boosted and heated continuously, and then is supplied to the heating furnace 10 to form the fuel carrying and photo-thermal single-working-medium combined cycle steam power device.

The fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 10 is realized by the following steps:

(1) Structurally, in the combined cycle steam power plant with the fuel carrying the photo-thermal single working medium shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, a condensate pipe of the condenser 6 is communicated with the booster pump 4, the condensate pipe of the condenser 6 is communicated with the low-temperature heat regenerator 14 through the second booster pump 13, a steam extraction channel is additionally arranged on the compressor 3 and is communicated with the low-temperature heat regenerator 14, and the condensate pipe of the low-temperature heat regenerator 14 is communicated with the booster pump 4.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the condensate discharged by the condenser 6 flows through the second booster pump 13 to be boosted and then enters the low-temperature regenerator 14 to be mixed with the extracted steam from the compressor 3, absorbs heat and heats up, and the extracted steam is released to form condensate; condensate of the low-temperature heat regenerator 14 flows through the booster pump 4 to boost pressure, and then enters the evaporator 7 to absorb heat to raise temperature and vaporize; the low-pressure steam discharged by the heat regenerator 5 and the second expander 2 flows through the evaporator 7 to release heat and cool, and then is divided into two paths, wherein the first path enters the compressor 3 to raise the pressure and the temperature, and the second path enters the condenser 6 to release heat and condense; the low-pressure steam enters the compressor 3 to be boosted and heated to a certain extent, and then is divided into two paths, namely a first path is provided for the low-temperature heat regenerator 14, and a second path is divided into two paths after the boosting and the heating are continued, namely the first path is provided for the heat regenerator 5 and the second path is provided for the solar heat collection system 8, so that the fuel carrying same-photo-thermal single-working-medium combined cycle steam power device is formed.

The fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 11 is realized by the following steps:

(1) In the combined cycle steam power plant with the fuel carrying the photo-thermal single working medium shown in fig. 1, a second evaporator and a diffusion pipe are added, the communication between a low-pressure steam channel of a heat regenerator 5 and an evaporator 7 is adjusted to be that the low-pressure steam channel of the heat regenerator 5 is communicated with a second evaporator 15 through the evaporator 7, the communication between the low-pressure steam channel of a second expander 2 and the evaporator 7 is adjusted to be that the low-pressure steam channel of the second expander 2 is communicated with the second evaporator 15 through the evaporator 7, the communication between the low-pressure steam channel of the evaporator 7 and the compressor 3 and the condenser 6 is respectively adjusted to be that the low-pressure steam channel of the second evaporator 15 is respectively communicated with the compressor 3 and the condenser 6, the communication between the condenser 6 and the condenser 6 is adjusted to be that the condensate channel of the condenser 6 is communicated with the second evaporator 15 through the booster pump 4, and then the wet steam channel of the second evaporator 15 is communicated with the evaporator 7 through the diffusion pipe 16.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the condensate discharged by the condenser 6 is boosted by the booster pump 4, is subjected to heat absorption and temperature rise, partial vaporization and speed increase by the second evaporator 15, is subjected to speed reduction and pressure boost by the diffuser pipe 16, and then enters the evaporator 7 to absorb heat and vaporization; low-pressure steam discharged by the heat regenerator 5 and the second expander 2 is gradually released and cooled through the evaporator 7 and the second evaporator 15, and then respectively enters the compressor 3 for boosting and heating and the condenser 6 for releasing heat and condensing, so that the fuel carrying same-photo-thermal single-working-medium combined cycle steam power device is formed.

The fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 12 is realized by the following steps:

(1) Structurally, in the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, an expansion speed increaser A 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, a newly added diffuser pipe D is added to replace a booster pump 4, and a second dual-energy compressor E is added to replace a second compressor 9.

(2) In the flow, compared with the fuel carrying and photo-thermal single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: part of low-pressure steam discharged by the evaporator 7 enters the dual-energy compressor C to be boosted, heated and decelerated to a certain extent and then is divided into two paths, wherein the first path is subjected to heat absorption and heating through the heat regenerator 5, and the second path is subjected to depressurization, work and acceleration through the second expansion speed increaser B and then is provided for the evaporator 7, and the second path is subjected to heat absorption and heating through the solar heat collection system 8 after the second path is subjected to continuous boosting and heating; condensate discharged by the condenser 6 flows through the newly added diffuser pipe D to be reduced in speed and boosted, flows through the evaporator 7 to absorb heat and raise temperature and vaporize, and then enters the solar heat collection system 8 to absorb heat and raise temperature; the steam discharged by the solar heat collection system 8 is boosted, warmed and slowed down by the second dual-energy compressor E, absorbed by the heating furnace 10, warmed, depressurized, acted and slowed down by the expansion speed increaser A, released by the heat regenerator 5, cooled and then provided for the evaporator 7; the low-pressure steam discharged by the heat regenerator 5 and the second expansion speed increaser B flows through the evaporator 7 to release heat and cool, and then is divided into two paths, wherein the first path enters the dual-energy compressor C to raise the pressure and raise the temperature and reduce the speed, and the second path enters the condenser 6 to release heat and condense; the work output by the expansion speed increaser A and the second expansion speed increaser B is provided for the double-energy compressor C, the second double-energy compressor E and external power to form the fuel carrying same-photo-thermal single-working-medium combined cycle steam power device.

The fuel carrying and photo-thermal single-working-medium combined cycle steam power device has the following effects and advantages:

(1) And the fuel and light and heat sharing integrated thermal power system saves the construction cost of the thermal power system and has high cost performance.

(2) The fuel and the photo-heat provide driving heat load links, the temperature difference loss is small, and the thermodynamic perfection is high.

(3) The photo-thermal plays a larger role by means of the fuel, and the utilization value of the fuel converted into mechanical energy is remarkably improved.

(4) And the cross-type and cross-grade carrying is realized between the fuel and the conventional heat resource, the connection is flexible, and the thermodynamic perfection is high.

(5) The driving heat load realizes graded utilization in the single-working-medium combined cycle, obviously reduces irreversible loss of temperature difference, and has high heat-changing work efficiency and thermodynamic perfection.

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

(7) In the system, the temperature difference utilization degree of the regenerative link between gases (steam) is high, and the heat change work efficiency is improved.

(8) In the system, in the regenerative link between the gas (steam) working medium and the liquid working medium, the gas working medium has large flow and relatively narrow temperature change interval, thereby being beneficial to reducing irreversible loss of temperature difference and improving heat-variable work efficiency.

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

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

(11) The flow is reasonable, the structure is simple, and the scheme is rich; the method is beneficial to improving the reasonable utilization level of energy and expanding the application range of the fuel carrying and photo-thermal single-working-medium combined cycle steam power device.

Claims

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

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

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

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

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

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

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

8. The fuel carrying same-photo-thermal single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a solar heat collection system, a second compressor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (10), the outside is also provided with an air channel which is communicated with the heating furnace (10) through a heat source regenerator (11), the heating furnace (10) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (11), the compressor (3) is provided with a first steam channel which is communicated with a second expander (2) through a regenerator (5), the second expander (2) is also provided with a low-pressure steam channel which is communicated with an evaporator (7), the compressor (3) is also provided with a second steam channel which is communicated with a solar heat collecting system (8) through a second regenerator (12), the condenser (6) is provided with a condensate liquid pipeline which is communicated with the evaporator (7) through a booster pump (4), the evaporator (7) is also provided with a steam channel which is communicated with the solar heat collecting system (8) through the second regenerator (12), the solar heat collecting system (8) is also provided with a steam channel which is communicated with the heating furnace (10) through a second compressor (9), the heating furnace (10) is also provided with a low-pressure steam channel which is also communicated with the expander (1), the evaporator (1) is also provided with a steam channel which is also communicated with the evaporator (1) through the second regenerator (12) and the evaporator (7) through the low-pressure evaporator (7), the evaporator (7) is also divided into two paths, namely a first path communicated with the compressor (3) and a second path communicated with the condenser (6); the condenser (6) is also provided with a cooling medium channel which is communicated with the outside, the expander (1) is connected with the compressor (3) and the second compressor (9) and transmits power to form a fuel carrying same-photo-thermal single-working-medium combined cycle steam power device; wherein, or the expander (1) is connected with the compressor (3), the booster pump (4) and the second compressor (9) and transmits power.

9. In the fuel carrying and photo-thermal single-working-medium combined cycle steam power device according to claim 3 or claim 6, a steam channel of the second compressor (9) is communicated with the heating furnace (10) through the second heat regenerator (12), and the steam channel of the second compressor (9) is communicated with the heating furnace (10) after the steam channel of the second compressor (9) is communicated with the fuel carrying and photo-thermal single-working-medium combined cycle steam power device is formed.

10. In the combined cycle steam power plant with the same photo-thermal single working medium, a second booster pump and a low-temperature heat regenerator are added in any one of the combined cycle steam power plants with the same photo-thermal single working medium, wherein a condensate pipe of a condenser (6) is communicated with a booster pump (4) and is adjusted to be communicated with the low-temperature heat regenerator (14) through the second booster pump (13), a steam extraction channel is additionally arranged in a compressor (3) and is communicated with the low-temperature heat regenerator (14), and a condensate pipe of the low-temperature heat regenerator (14) is communicated with the booster pump (4), so that the combined cycle steam power plant with the same photo-thermal single working medium with the same fuel is formed.

11. In the combined cycle steam power plant with the fuel carrying the same photo-thermal single working medium, a second evaporator and a diffusion pipe are added in any one of the combined cycle steam power plants with the fuel carrying the same photo-thermal single working medium of claims 1 and 3-9, the low-pressure steam channel of the regenerator (5) is communicated with the evaporator (7) and is regulated to be communicated with the second evaporator (15) through the evaporator (7), the low-pressure steam channel of the second expander (2) is communicated with the evaporator (7) and is regulated to be communicated with the second evaporator (2) through the evaporator (7), the low-pressure steam channel of the evaporator (7) is respectively communicated with the compressor (3) and the condenser (6) and is regulated to be communicated with the second evaporator (15) through the low-pressure steam channel of the second evaporator (3) and the condenser (6), the condensate pipe of the condenser (6) is regulated to be communicated with the evaporator (7) through the booster pump (4) and is regulated to be communicated with the condenser (6) through the booster pump (4) and is communicated with the second evaporator (15) through the condensate pipe, and the condensate pipe of the single-phase evaporator (15) is formed to be communicated with the single working medium through the evaporator (15) and the single-working medium circulating device.

12. In the combined cycle steam power plant with the fuel carrying and photo-thermal single working medium, a second evaporator and a diffusion pipe are added in the combined cycle steam power plant with the fuel carrying and photo-thermal single working medium, the low-pressure steam channel of the expander (1) is communicated with the evaporator (7) and is regulated to be communicated with the second evaporator (15) through the evaporator (7), the low-pressure steam channel of the second expander (2) is communicated with the evaporator (7) and is regulated to be communicated with the second evaporator (2) through the evaporator (7), the low-pressure steam channel of the evaporator (7) is communicated with the second evaporator (15) through the evaporator (7), the low-pressure steam channel of the second evaporator (15) is respectively communicated with the compressor (3) and the condenser (6), the condensate pipe of the condenser (6) is communicated with the second evaporator (15) through the booster pump (4) and is regulated to be communicated with the condenser (6) through the condensate pipe (4) and is communicated with the second evaporator (15) through the second evaporator (15), and the single-working medium circulating steam carrying device is formed after the condensate pipe of the condenser (6) is communicated with the second evaporator (15) through the second evaporator (15).

13. In the combined cycle steam power plant with the same photo-thermal single working medium, an expansion speed increaser (A) is added and replaces an expansion machine (1), a second expansion speed increaser (B) is added and replaces a second expansion machine (2), a dual-energy compressor (C) is added and replaces a compressor (3), a newly added diffuser pipe (D) is added and replaces a booster pump (4), a second dual-energy compressor (E) is added and replaces a second compressor (9) in any one of the fuel-carrying combined cycle steam power plants with the same photo-thermal single working medium, and the combined cycle steam power plant with the same photo-thermal single working medium is formed.