CN118008518A

CN118008518A - Fuel type multifunctional single-working-medium combined cycle steam power device

Info

Publication number: CN118008518A
Application number: CN202410134021.6A
Authority: CN
Inventors: 李鸿瑞; 李华玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-29
Filing date: 2024-01-27
Publication date: 2024-05-10

Abstract

The invention provides a fuel type multifunctional single-working-medium combined cycle steam power device, and belongs to the technical field of thermodynamics and thermal power. The outside has fuel channel and heating furnace to communicate, the outside has air channel and heating furnace to communicate through heat source regenerator, the heating furnace has fuel gas channel and external to communicate through heat source regenerator, the compressor has the first steam channel to communicate with evaporator through regenerator and two expanders, the compressor has the second steam channel to communicate with heat source heat exchanger, the condenser is communicated with heat source heat exchanger through booster pump and evaporator, the heat source heat exchanger has the steam channel to communicate with evaporator through the second compressor, solar energy heat collecting system, heating furnace, expander and regenerator, the evaporator has low-pressure steam to communicate with compressor and condenser separately; the condenser is provided with a cooling medium channel, the heat source heat exchanger is provided with a heat source 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 type multifunctional single-working-medium combined cycle steam power device.

Description

Fuel type multifunctional 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, photo-thermal, the conventional heat resource represented by industrial waste heat and geothermal 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, photo-thermal or conventional thermal resources 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 factors such as working principle, working medium property, material property, safety and the like, and the irreversible temperature difference loss exists in the fuel combustion process and the irreversible temperature difference loss exists in the photo-thermal power application process; the heat efficiency of the conventional heat resource represented by industrial waste heat and geothermal heat is improved.

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 type multifunctional carrying same single-working-medium combined cycle steam power device which is characterized in that the fuel, the photo-thermal and the heat resources or the fuel, the high-temperature photo-thermal and the medium-temperature photo-thermal form cascade carrying same, the photo-thermal and the heat resources or the high-temperature photo-thermal and the medium-temperature photo-thermal are flexibly connected, the flow is reasonable, the structure is simple, the systematic temperature difference irreversible loss of the thermal power device is small, the thermodynamic perfection is reasonable and the cost performance is high, and the principle of simply, actively, safely and efficiently utilizing energy sources to obtain power is provided.

The invention comprises the following steps:

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

1. The fuel type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 heat source heat exchanger, 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 heat source heat exchanger, the heat source heat exchanger is also provided with a steam channel which is communicated with the heating furnace through the second compressor and the solar heat collecting system, the heating furnace is also provided with the steam channel which is communicated with the expander, the expander is also provided with the low-pressure steam channel which is communicated with the evaporator through the regenerator, and the evaporator is also 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, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, the evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form the fuel type multi-functional 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 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 a heat source heat exchanger after the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the heat source heat exchanger is also provided with a steam channel which is communicated with the heat source heat exchanger through the second compressor and a solar heat collecting system, 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 expander, and the evaporator is also 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, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, the evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form the fuel type multi-functional 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 heat source heat exchanger after the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the heat source heat exchanger is also provided with a steam channel which is communicated with the heat source heat exchanger, the heat source heat exchanger is also provided with a steam channel which is communicated with the heating furnace through the second compressor, the second regenerator and the solar heat collecting system, 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 second regenerator, and the evaporator 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 and a second path which is communicated with the condenser. The condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, the evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form the fuel type multi-functional 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 heat source heat exchanger after the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the heat source heat exchanger is also provided with a steam channel which is communicated with the heat source heat exchanger through the second regenerator, the second compressor and the solar heat collecting system, 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 second regenerator, and the evaporator 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, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, the evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form the fuel type multi-functional 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 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 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 the heat source heat exchanger 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 provided with a steam channel which is communicated with the heat source heat exchanger through the second regenerator, the heat source heat exchanger is provided with a steam channel which is communicated with the heating furnace through the second compressor and the solar heat collecting system, the heating furnace is provided with a steam channel which is communicated with the expander, and the expander is provided with a low-pressure steam channel which is communicated with the evaporator through the second regenerator and the evaporator, and the evaporator is 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, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, the evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form the fuel type multi-functional 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 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 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 the heat source heat exchanger after the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the heat source heat exchanger is provided with a steam channel which is communicated with the heat source heat exchanger through the second compressor, the second regenerator and the solar heat collecting system, 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 evaporator is 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, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, the evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form the fuel type multi-functional 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 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 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 the heat source heat exchanger after the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the heat source heat exchanger is provided with a steam channel which is communicated with the heat source heat exchanger through the second regenerator, the second compressor and the solar heat collecting system, 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 evaporator is 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, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, the evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form the fuel type multi-functional 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 heat source heat exchanger through the second regenerator after the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the heat source heat exchanger is also provided with a steam channel which is communicated with the heat source heat exchanger through the second compressor and the solar heat collecting system, the heating furnace is also provided with a steam channel which is communicated with the expander after the expander is communicated with the heat source heat collecting system, the expander is also provided with the low-pressure steam channel which is communicated with the evaporator through the evaporator after the second regenerator is communicated with the heat collecting system, and the evaporator is also 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, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, the evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and the second compressor and transmits power to form the fuel type multi-functional 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 type multi-energy single-working-medium combined cycle steam power device is characterized in that in the fuel type multi-energy single-working-medium combined cycle steam power device in the 3 rd or 6 th, a second compressor is provided with a steam channel which is communicated with a solar heat collection system through a second heat regenerator, and is adjusted to be communicated with the solar heat collection system after the second compressor is provided with the steam channel which is communicated with the second heat regenerator, so that the fuel type multi-energy single-working-medium combined cycle steam power device is formed.

10. The fuel type multi-functional single-working-medium combined cycle steam power device is characterized in that a second booster pump and a low-temperature heat regenerator are added in any one of the fuel type multi-functional single-working-medium combined cycle steam power devices in the 1 st to the 9 th, a condenser condensate pipe is communicated with the booster pump and is adjusted to be communicated with the low-temperature heat regenerator through the second booster pump, a steam extraction channel is additionally arranged in the compressor and is communicated with the low-temperature heat regenerator, and the low-temperature heat regenerator is further communicated with the booster pump through the condensate pipe, so that the fuel type multi-functional single-working-medium combined cycle steam power device is formed.

11. The fuel type multi-functional single-working-medium combined cycle steam power device is characterized in that in any one of the fuel type multi-functional single-working-medium combined cycle steam power devices in the 1 st and the 3 th to the 9 th, a second evaporator and a diffusion pipe are added, the communication between a low-pressure steam channel of a regenerator and the evaporator is adjusted to be that between the low-pressure steam channel of the regenerator and the second evaporator through the evaporator, the communication between the low-pressure steam channel of the second expander and the evaporator is adjusted to be that between the low-pressure steam channel of the second expander and the second evaporator through the evaporator, the communication between the low-pressure steam channel of the evaporator and the compressor respectively is adjusted to be that between the low-pressure steam channel of the second evaporator and the compressor respectively, a condensate pipe of the condenser is adjusted to be that between the condensate pipe of the condenser and the second evaporator through the booster pump, and the diffusion pipe of the second evaporator are further that between the condensate pipe of the second evaporator and the evaporator, and the fuel type multi-working-medium combined cycle steam power device is formed.

12. The fuel type multi-functional co-single-working-medium combined cycle steam power device is characterized in that in the fuel type multi-functional co-single-working-medium combined cycle steam power device in the 2 nd step, a second evaporator and a diffuser pipe are added, the low-pressure steam channel of the expander is communicated with the evaporator and is regulated to be communicated with the second evaporator through the evaporator, the low-pressure steam channel of the second expander is regulated to be communicated with the second evaporator through the evaporator and is communicated with the second evaporator, the low-pressure steam channel of the evaporator is regulated to be respectively communicated with the compressor and the condenser through the low-pressure steam channel of the second evaporator, the condenser condensate pipe is regulated to be communicated with the second evaporator through the booster pump, and then the second evaporator is communicated with the evaporator through the diffuser pipe, so that the fuel type multi-functional co-working-medium combined cycle steam power device is formed.

13. The fuel type multi-energy co-single-working-medium combined cycle steam power device is characterized in that in any one of the fuel type multi-energy co-single-working-medium combined cycle steam power devices in the 1 st to 12 th, a solar heat collection system is named as a high-temperature photo-thermal system, a heat source medium channel communicated with the outside by a heat source heat exchanger is omitted, a medium-temperature photo-thermal system is added and the heat source heat exchanger is replaced, and the fuel type multi-energy co-single-working-medium combined cycle steam power device is formed.

14. The fuel type multi-energy co-single-working-medium combined cycle steam power plant is characterized in that in any one of the fuel type multi-energy co-single-working-medium combined cycle steam power plants in the 1 st to 13 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 type multi-energy co-working-medium combined cycle steam power plant is formed.

Description of the drawings:

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

FIG. 2 is a schematic thermodynamic system diagram of a fuel type multi-energy co-single-working-medium combined cycle steam power plant according to the present invention.

FIG. 3 is a schematic thermodynamic system diagram of a fuel type multi-energy co-single-working-medium combined cycle steam power plant according to the present invention.

FIG. 4 is a schematic thermodynamic system diagram of a fuel type multi-energy single-working-medium combined cycle steam power plant according to the present invention.

FIG. 5 is a schematic thermodynamic system diagram of a fuel type multi-energy single-working-medium combined cycle steam power plant according to the present invention.

FIG. 6 is a schematic thermodynamic system diagram of a fuel type multi-energy single-working-medium combined cycle steam power plant according to the present invention.

FIG. 7 is a schematic thermodynamic system diagram of a fuel type multi-energy single-working-medium combined cycle steam power plant according to the present invention.

FIG. 8 is a schematic thermodynamic system diagram of an 8 th principle thermodynamic system of a fuel type multi-energy co-single-working-medium combined cycle steam power plant according to the present invention.

FIG. 9 is a schematic thermodynamic system diagram of a fuel type multi-energy single-working-medium combined cycle steam power plant according to the present invention.

FIG. 10 is a schematic diagram of a10 th principle thermodynamic system of a fuel type multi-energy co-single-working-medium combined cycle steam power plant according to the present invention.

FIG. 11 is a schematic thermodynamic system diagram of a fuel type multi-energy single-working-medium combined cycle steam power plant according to the present invention.

FIG. 12 is a schematic view of a 12 th principle thermodynamic system of a fuel type multi-energy co-single-working-medium combined cycle steam power plant according to the present invention.

FIG. 13 is a schematic thermodynamic system diagram of a fuel type multi-energy single-working-medium combined cycle steam power plant according to 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-heat source heat exchanger, a 9-second compressor, a 10-solar heat collection system, a 11-heating furnace, a 12-heat source regenerator, a 13-second regenerator, a 14-second booster pump, a 15-low temperature regenerator, a 16-second evaporator, a 17-diffuser pipe and an 18-medium temperature photo-thermal system; 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 description is given here about the photo-thermal, solar heat collection system, medium temperature photo-thermal system and high temperature photo-thermal 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) The medium-temperature photo-thermal system and the high-temperature photo-thermal system in the application are divided into two types according to different temperature grades in the solar heat collection system; the former is low in temperature and the latter is high in temperature.

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

(4) 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 system comprises a non-condensing solar heat collection system, an existing solar pond, a solar chimney and the like.

(5) There are two main types of heat supply modes of solar heat collection systems at present: ① The medium temperature/high temperature heat energy converted by solar energy is directly provided for a circulating working medium flowing through a solar heat collection system; ② The medium-temperature heat energy/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 type multi-energy co-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 heat source heat exchanger, a second compressor, a solar heat collection system, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 11, the outside is also provided with an air channel which is communicated with the heating furnace 11 through a heat source regenerator 12, the heating furnace 11 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 12, 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 heat source heat exchanger 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 heat source heat exchanger 8, the heat source heat exchanger 8 is also provided with a steam channel which is communicated with the heating furnace 11 through a second compressor 9 and a solar heat collecting system 10, the heating furnace 11 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 a first path which is communicated with the compressor 3 and a second path which is communicated with the condenser 6; the condenser 6 also has a cooling medium passage communicating with the outside, and the heat source heat exchanger 8 also has a heat source 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 11, external air enters the heating furnace 11 after absorbing heat and raising temperature through the heat source regenerator 12, the fuel and the air are mixed in the heating furnace 11 and combusted to generate high-temperature fuel gas, the fuel gas releases heat on steam flowing through the heating furnace 11, and then the fuel gas releases heat and lowers the temperature through the heat source regenerator 12 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 flows through the heat regenerator 5 to absorb heat and flows through the second expander 2 to be decompressed and work and provided for the evaporator 7, and the second path continuously boosts and heats and then enters the heat source heat exchanger 8 to absorb heat and heat; the condensate discharged by the condenser 6 is boosted by the booster pump 4, is heated and vaporized by the heat absorption of the evaporator 7, and then enters the heat source heat exchanger 8 to absorb heat and raise temperature; the steam discharged by the heat source heat exchanger 8 is boosted and heated by the second compressor 9, gradually absorbs heat and heats by the solar heat collecting system 10 and the heating furnace 11, is decompressed and works by the expander 1, releases heat and cools by the heat regenerator 5, and is then supplied to 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 heat source medium provides a driving heat load through the heat source heat exchanger 8, the solar energy provides a driving heat load through the solar heat collection system 10, the fuel provides a driving heat load through the heating furnace 11, 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 11; work output by the expander 1 and the second expander 2 is provided for the compressor 3, the second compressor 9 and external acting force, 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 acting force, so that the fuel type multi-energy co-single-working-medium combined cycle steam power device is formed.

The fuel type multi-energy co-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 heat source heat exchanger, a second compressor, a solar heat collection system, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 11, the outside is also provided with an air channel which is communicated with the heating furnace 11 through a heat source regenerator 12, the heating furnace 11 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 12, 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 heat source heat exchanger 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 heat source heat exchanger 8, the heat source heat exchanger 8 is also provided with a steam channel which is communicated with the heating furnace 11 through a second compressor 9 and a solar heat collecting system 10, the expander 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 is further provided with the low-pressure steam channel which is communicated with the evaporator 7 after the expander 1 is also communicated with the regenerator 5, and the low-pressure steam channel is divided into two paths-namely the first path which is communicated with the compressor 3 and the second path which is communicated with the condenser 6; the condenser 6 further has a cooling medium passage in communication with the outside, the heat source heat exchanger 8 further has a heat source medium passage in communication with the outside, the evaporator 7 or further has a heat source medium passage in communication 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 type multifunctional single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged by the heating furnace 11 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 type multifunctional single-working-medium combined cycle steam power device.

The fuel type multi-energy co-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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 11, the outside is also provided with an air channel which is communicated with the heating furnace 11 through a heat source regenerator 12, the heating furnace 11 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 12, 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 heat source heat exchanger 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 also provided with a steam channel which is communicated with the heat source heat exchanger 8, the heat source heat exchanger 8 is also provided with a steam channel which is communicated with the heating furnace 11 through a second compressor 9, a second regenerator 13 and a solar heat collection system 10, the heating furnace 11 is also communicated with the expander 1, the expander 1 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 further has a cooling medium passage in communication with the outside, the heat source heat exchanger 8 further has a heat source medium passage in communication with the outside, the evaporator 7 or further has a heat source medium passage in communication 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 type multifunctional 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 is heated through the second heat regenerator 13, the solar heat collecting system 10 and the heating furnace 11, is depressurized through the expander 1 to do work, is gradually released in heat and is cooled through the second heat regenerator 13 and the heat regenerator 5, and is then supplied to the evaporator 7 to form the fuel type multi-energy carrying single-working-medium combined cycle steam power device.

The fuel type multi-energy co-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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 11, the outside is also provided with an air channel which is communicated with the heating furnace 11 through a heat source regenerator 12, the heating furnace 11 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 12, 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 heat source heat exchanger 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 also provided with a steam channel which is communicated with the heat source heat exchanger 8, the heat source heat exchanger 8 is also provided with a steam channel which is communicated with the heating furnace 11 through a second regenerator 13, a second compressor 9 and a solar heat collection system 10, the heating furnace 11 is also communicated with the expander 1, the expander 1 is also provided with a low-pressure steam channel which is 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 further has a cooling medium passage in communication with the outside, the heat source heat exchanger 8 further has a heat source medium passage in communication with the outside, the evaporator 7 or further has a heat source medium passage in communication 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 type multifunctional single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: steam discharged by the heat source heat exchanger 8 flows through the second heat regenerator 13 to absorb heat and raise temperature, and then enters the second compressor 9 to raise pressure and raise temperature; the low-pressure steam discharged by the expander 1 flows through the second heat regenerator 13 and the heat regenerator 5 to release heat and cool gradually, and then is supplied to the evaporator 7 to form the fuel type multifunctional single-working-medium combined cycle steam power device.

The fuel type multi-energy co-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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 11, the outside is also provided with an air channel which is communicated with the heating furnace 11 through a heat source regenerator 12, the heating furnace 11 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 12, 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 heat source heat exchanger 8 through a second regenerator 13 after 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 heat source heat exchanger 8 through the second regenerator 13, the heat source heat exchanger 8 is also provided with a steam channel which is communicated with the heating furnace 11 through a second compressor 9 and a solar heat collecting system 10, the heating furnace 11 is also 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 13 and the evaporator 5, and the low-pressure steam channel is also 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 further has a cooling medium passage in communication with the outside, the heat source heat exchanger 8 further has a heat source medium passage in communication with the outside, the evaporator 7 or further has a heat source medium passage in communication 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 type multifunctional single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the high-pressure steam discharged from the evaporator 7 and the compressor 3 flows through the second regenerator 13 to absorb heat and raise temperature, and then is supplied to the heat source heat exchanger 8; the low-pressure steam discharged by the expander 1 flows through the second heat regenerator 13 and the heat regenerator 5 to release heat and cool gradually, and then is supplied to the evaporator 7 to form the fuel type multifunctional single-working-medium combined cycle steam power device.

The fuel type multi-energy co-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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 11, the outside is also provided with an air channel which is communicated with the heating furnace 11 through a heat source regenerator 12, the heating furnace 11 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 12, 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 heat source heat exchanger 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 heat source heat exchanger 8, the heat source heat exchanger 8 is also provided with a steam channel which is communicated with the heating furnace 11 through a second compressor 9, a second regenerator 13 and a solar heat collection system 10, the heating furnace 11 is also provided with a steam channel which is communicated with the expander 1, the expander 1 is further provided with a low-pressure steam channel which is communicated with the evaporator 7 through the regenerator 5 after the expander 1 is further provided with the low-pressure steam channel which is communicated with the evaporator 7, and the low-pressure steam channel is further divided into two paths-namely the first path which is communicated with the compressor 3 and the condenser 6; the condenser 6 further has a cooling medium passage in communication with the outside, the heat source heat exchanger 8 further has a heat source medium passage in communication with the outside, the evaporator 7 or further has a heat source medium passage in communication 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 type multifunctional 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 13, the solar heat collecting system 10 and the heating furnace 11, 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 13 to release heat and cool to a certain extent, enters the expander 1 to continue decompression and work, flows through the heat regenerator 5 to release heat and cool, and then is provided for the evaporator 7 to form the fuel type multifunctional single-working-medium combined cycle steam power device.

The fuel type multi-energy co-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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 11, the outside is also provided with an air channel which is communicated with the heating furnace 11 through a heat source regenerator 12, the heating furnace 11 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 12, 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 heat source heat exchanger 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 heat source heat exchanger 8, the heat source heat exchanger 8 is also provided with a steam channel which is communicated with the heating furnace 11 through a second regenerator 13, a second compressor 9 and a solar heat collection system 10, the heating furnace 11 is also provided with a steam channel which is communicated with the expander 1, the expander 1 is further provided with a low-pressure steam channel which is communicated with the evaporator 7 through the regenerator 5 after the expander 1 is further provided with the steam channel which is communicated with the evaporator 7, and the low-pressure steam channel is further divided into two paths, namely the first path which is communicated with the compressor 3 and the condenser 6; the condenser 6 further has a cooling medium passage in communication with the outside, the heat source heat exchanger 8 further has a heat source medium passage in communication with the outside, the evaporator 7 or further has a heat source medium passage in communication 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 type multifunctional single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged from the heat source heat exchanger 8 absorbs heat and rises temperature through the second regenerator 13, and is then supplied to the second compressor 9; the steam discharged by the heating furnace 11 enters the expander 1 to perform decompression and work, flows through the second heat regenerator 13 to release heat and reduce temperature to a certain extent, 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 type multifunctional single-working-medium combined cycle steam power device.

The fuel type multi-energy co-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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 11, the outside is also provided with an air channel which is communicated with the heating furnace 11 through a heat source regenerator 12, the heating furnace 11 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 12, 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 through a second regenerator 13, the compressor 3 is also provided with a second steam channel which is communicated with a heat source heat exchanger 8 through a second regenerator 13 after the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through a booster pump 4, the heat source heat exchanger 8 is also provided with a steam channel which is communicated with the heating furnace 11 through a second compressor 9 and a solar heat collection system 10, the heating furnace 11 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 13 is also communicated with the expander 1 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 further has a cooling medium passage in communication with the outside, the heat source heat exchanger 8 further has a heat source medium passage in communication with the outside, the evaporator 7 or further has a heat source medium passage in communication 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 type multifunctional single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the high-pressure steam discharged from the evaporator 7 and the compressor 3 flows through the second regenerator 13 to absorb heat and raise temperature, and then is supplied to the heat source heat exchanger 8; the steam discharged by the heating furnace 11 enters the expander 1 to perform decompression and work, flows through the second heat regenerator 13 to release heat and reduce temperature to a certain extent, enters the expander 1 to continue decompression and work, flows through the heat regenerator 5 to release heat and reduce temperature and is provided for the evaporator 7, and the fuel type multifunctional single-working-medium combined cycle steam power device is formed.

The fuel type multi-energy co-single-working-medium combined cycle steam power plant shown in fig. 9 is realized by the following steps:

(1) In the fuel type multi-functional single-working-medium combined cycle steam power plant shown in fig. 3, a steam channel of the second compressor 9 is communicated with the solar heat collection system 10 through the second heat regenerator 13, and the condition is that the steam channel of the second compressor 9 is communicated with the solar heat collection system 10 through the second heat regenerator 13 and then the steam channel of the second compressor 9 is communicated with the solar heat collection system 10.

(2) In the flow, compared with the fuel type multi-energy single-working-medium combined cycle steam power plant shown in fig. 3, the difference is that: the steam discharged by the heat source heat exchanger 8 enters the second compressor 9 to be boosted and heated to a certain extent, then flows through the second heat regenerator 13 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 solar heat collection system 10 to form the fuel type multifunctional single-working-medium combined cycle steam power device.

The fuel type multi-energy co-single-working-medium combined cycle steam power plant shown in fig. 10 is realized by the following steps:

(1) Structurally, in the fuel type multifunctional single-working-medium combined cycle steam power device shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, a condensate pipe of a condenser 6 is communicated with the booster pump 4, the condensate pipe of the condenser 6 is communicated with the low-temperature heat regenerator 15 through the second booster pump 14, a steam extraction channel is additionally arranged on the compressor 3 and is communicated with the low-temperature heat regenerator 15, and the condensate pipe of the low-temperature heat regenerator 15 is communicated with the booster pump 4.

(2) In the flow, compared with the fuel type multifunctional 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 14 to be boosted and then enters the low-temperature regenerator 15 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 15 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 15, 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 heat source heat exchanger 8, so that the fuel type multifunctional portable single-working-medium combined cycle steam power device is formed.

The fuel type multi-energy co-single-working-medium combined cycle steam power plant shown in fig. 11 is realized by the following steps:

(1) In the fuel type multi-functional combined cycle steam power plant with the same single working medium shown in fig. 1, a second evaporator and a diffuser 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 16 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 16 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 16 is respectively communicated with the compressor 3 and the condenser 6, a condensate pipe of the condenser 6 is adjusted to be that the condensate pipe of the condenser 6 is communicated with the second evaporator 16 through the booster pump 4, and then the wet steam channel of the second evaporator 16 is communicated with the evaporator 7 through the diffuser pipe 17.

(2) In the flow, compared with the fuel type multifunctional 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 16, is subjected to speed reduction and pressure boost by the diffuser pipe 17, 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 16, and then respectively enters the compressor 3 for boosting and heating and the condenser 6 for releasing heat and condensing, so that the fuel type multifunctional single-working-medium combined cycle steam power device is formed.

The fuel type multi-energy co-single-working-medium combined cycle steam power plant shown in fig. 12 is realized by the following steps:

In the fuel type multi-energy carrying single-working-medium combined cycle steam power device shown in fig. 1, a solar heat collection system 10 is named as a high-temperature photo-thermal system 10, a heat source medium channel for communicating a heat source heat exchanger 8 with the outside is omitted, a medium-temperature photo-thermal system 18 is added and the heat source heat exchanger 8 is replaced; the solar energy provides driving heat load through the added medium-temperature photo-thermal system 18, so that the fuel type multi-energy carrying single-working-medium combined cycle steam power plant is formed.

The fuel type multi-energy co-single-working-medium combined cycle steam power plant shown in fig. 13 is realized by the following steps:

(1) Structurally, in the fuel type multi-functional single-working-medium combined cycle steam power plant shown in fig. 1, an expansion speed increaser a is added to replace the expansion machine 1, a second expansion speed increaser B is added to replace the second expansion machine 2, a dual-energy compressor C is added to replace the compressor 3, a newly added diffuser pipe D is added to replace the booster pump 4, and a second dual-energy compressor E is added to replace the second compressor 9.

(2) In the flow, compared with the fuel type multifunctional 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 flows through the heat regenerator 5 to absorb heat and heat, flows through the second expansion speed increaser B to be decompressed, work and speed-up and provided for the evaporator 7, and the second path continuously boosts, heats and then enters the heat source heat exchanger 8 to absorb heat and heat; 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 evaporate, and then enters the heat source heat exchanger 8 to absorb heat and raise temperature; the steam discharged by the heat source heat exchanger 8 is boosted, warmed and decelerated through the second dual-energy compressor E, gradually absorbed in heat and warmed through the solar heat collecting system 10 and the heating furnace 11, decompressed, acted and decelerated through the expansion speed increaser A, released in heat and cooled through the heat regenerator 5, and then supplied to 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 dual-energy compressor C, the second dual-energy compressor E and external power to form the fuel type multi-energy co-single working medium combined cycle steam power device.

The fuel type multifunctional single-working-medium combined cycle steam power device provided by the invention has the following effects and advantages:

(1) The fuel, the photo-thermal and the conventional heat resources, or the fuel, the high-temperature photo-thermal and the medium-temperature photo-thermal share the integrated thermal power system, so that the construction cost of the thermal power system is saved, and the cost performance is high.

(2) The fuel, the photo-thermal and the conventional heat resources, or the fuel, the high-temperature photo-thermal and the medium-temperature photo-thermal provide driving heat load links with small temperature difference loss and high thermodynamic perfection.

(3) The conventional heat resource plays a larger role by means of photo-heat, so that the utilization value of photo-heat conversion into mechanical energy is obviously improved; the medium-temperature photo-thermal plays a larger role by means of the high-temperature photo-thermal, and the utilization value of the conversion of the high-temperature photo-thermal into mechanical energy is obviously improved.

(4) 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.

(5) The conventional heat resource and the photo-thermal or the medium-temperature photo-thermal and the high-temperature photo-thermal realize the same grade carrying, flexible connection and high thermodynamic perfection.

(6) 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.

(7) The conventional heat resource or moderate-temperature photo-thermal can be used for or is beneficial to reducing the pressure boosting ratio of the combined cycle, improving the flow of the circulating working medium and being beneficial to constructing a large-load fuel type multifunctional single-working-medium combined cycle steam power device.

(8) The utilization degree of the temperature difference in the back heating link between gases (steam) is high, and the heat-changing work efficiency is improved; and in the regenerative link between the gas (steam) working medium and the liquid working medium, the flow rate of the gas working medium is large, the temperature change interval is relatively narrow, the irreversible loss of the temperature difference is reduced, and the heat-variable work efficiency is improved.

(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; is beneficial to improving the reasonable utilization level of energy and expanding the application range of the fuel type multifunctional single-working-medium combined cycle steam power device.

Claims

1. The fuel type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (11), the outside is also provided with an air channel which is communicated with the heating furnace (11) through a heat source regenerator (12), the heating furnace (11) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (12), 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 heat source heat exchanger (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 heat source heat exchanger (8), the heat source heat exchanger (8) is also provided with a steam channel which is communicated with the heating furnace (11) through a second compressor (9) and a solar heat collecting system (10), the heating furnace (11) 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 (7) and the second evaporator (3) is communicated with the second channel which is communicated with the second channel; the condenser (6) is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger (8) is also provided with a heat source medium channel which is communicated with the outside, the evaporator (7) or the heat source medium channel is also communicated with the outside, and the expander (1) is connected with the compressor (3) and the second compressor (9) and transmits power to form the fuel type multi-energy carrying 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (11), the outside is also provided with an air channel which is communicated with the heating furnace (11) through a heat source regenerator (12), the heating furnace (11) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (12), 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 heat source heat exchanger (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 heat source heat exchanger (8), the heat source heat exchanger (8) is also provided with a steam channel which is communicated with the heating furnace (11) through a second compressor (9) and a solar heat collecting system (10), the heating furnace (11) 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) after the expander (1) is also communicated with the evaporator (7) by the evaporator (4) and the evaporator (7) is also communicated with the evaporator (7) with the evaporator; the condenser (6) is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger (8) is also provided with a heat source medium channel which is communicated with the outside, the evaporator (7) or the heat source medium channel is also communicated with the outside, and the expander (1) is connected with the compressor (3) and the second compressor (9) and transmits power to form the fuel type multi-energy carrying 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 (11), the outside is also provided with an air channel which is communicated with the heating furnace (11) through a heat source regenerator (12), the heating furnace (11) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (12), 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 heat source heat exchanger (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 heat source heat exchanger (8), the heat source heat exchanger (8) is also provided with a steam channel which is communicated with the heating furnace (11) through a second compressor (9), a second evaporator (13) and a solar heat collecting system (10), the heating furnace (11) is also provided with the steam channel which is communicated with the expander (1), the low-pressure steam channel is also communicated with the evaporator (7) through the second compressor (13) and the regenerator (7) which is also communicated with the low-pressure steam channel which is communicated with the evaporator (7) through the second evaporator (7) and the evaporator (6); the condenser (6) is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger (8) is also provided with a heat source medium channel which is communicated with the outside, the evaporator (7) or the heat source medium channel is also communicated with the outside, and the expander (1) is connected with the compressor (3) and the second compressor (9) and transmits power to form the fuel type multi-energy carrying 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 (11), the outside is also provided with an air channel which is communicated with the heating furnace (11) through a heat source regenerator (12), the heating furnace (11) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (12), 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 heat source heat exchanger (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 heat source heat exchanger (8), the heat source heat exchanger (8) is also provided with a steam channel which is communicated with the heating furnace (11) through a second regenerator (13), a second compressor (9) and a solar heat collecting system (10), the heating furnace (11) 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 also communicated with the evaporator (7) through the second regenerator (13) and the evaporator (7) which is also communicated with the low-pressure channel which is communicated with the second evaporator (6) through the evaporator (7); the condenser (6) is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger (8) is also provided with a heat source medium channel which is communicated with the outside, the evaporator (7) or the heat source medium channel is also communicated with the outside, and the expander (1) is connected with the compressor (3) and the second compressor (9) and transmits power to form the fuel type multi-energy carrying 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 (11), the outside is also provided with an air channel which is communicated with the heating furnace (11) through a heat source regenerator (12), the heating furnace (11) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (12), 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 heat source heat exchanger (8) through a second regenerator (13), 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 heat source heat exchanger (8) through a second compressor (9) and a solar heat collecting system (10), the heating furnace (11) is also provided with a low-pressure steam channel which is communicated with the evaporator (1), the evaporator (1) is also provided with a low-pressure steam channel which is also communicated with the evaporator (7) through the second regenerator (7) and the evaporator (7), and the evaporator (7) is also communicated with the low-pressure channel which is also communicated with the evaporator (3 through the second regenerator (7); the condenser (6) is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger (8) is also provided with a heat source medium channel which is communicated with the outside, the evaporator (7) or the heat source medium channel is also communicated with the outside, and the expander (1) is connected with the compressor (3) and the second compressor (9) and transmits power to form the fuel type multi-energy carrying 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 (11), the outside is also provided with an air channel which is communicated with the heating furnace (11) through a heat source regenerator (12), the heating furnace (11) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (12), the compressor (3) is provided with a first steam channel which is communicated with a second expander (2) through the 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 heat source heat exchanger (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 heat source heat exchanger (8), the heat source heat exchanger (8) is also provided with a steam channel which is communicated with the heating furnace (11) through a second compressor (9), a second evaporator (13) and a solar heat collecting system (10), the heating furnace (11) is also provided with a steam channel which is communicated with an expander (1), the expander (1) is also provided with a steam channel which is communicated with the evaporator (7) through the low-pressure heat regenerator (7) after the second expander (13) is also communicated with the evaporator (1), 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 heat source heat exchanger (8) is also provided with a heat source medium channel which is communicated with the outside, the evaporator (7) or the heat source medium channel is also communicated with the outside, and the expander (1) is connected with the compressor (3) and the second compressor (9) and transmits power to form the fuel type multi-energy carrying 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 (11), the outside is also provided with an air channel which is communicated with the heating furnace (11) through a heat source regenerator (12), the heating furnace (11) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (12), 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 heat source heat exchanger (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 heat source heat exchanger (8), the heat source heat exchanger (8) is also provided with a steam channel which is communicated with the heating furnace (11) through a second regenerator (13), the second compressor (9) and a solar heat collecting system (10), the heating furnace (11) is also provided with a steam channel which is communicated with an expander (1), the expander (1) is also provided with a steam channel which is communicated with the evaporator (7) through the low-pressure heat exchanger (7) after the second regenerator (13) is also communicated with the evaporator (1), 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 heat source heat exchanger (8) is also provided with a heat source medium channel which is communicated with the outside, the evaporator (7) or the heat source medium channel is also communicated with the outside, and the expander (1) is connected with the compressor (3) and the second compressor (9) and transmits power to form the fuel type multi-energy carrying 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 type multifunctional 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 heat source heat exchanger, a second compressor, a solar heat collection system, 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 (11), the outside is also provided with an air channel which is communicated with the heating furnace (11) through a heat source regenerator (12), the heating furnace (11) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (12), 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 heat source heat exchanger (8) through a second regenerator (13), 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 heat source heat exchanger (8) through the second regenerator (13), the heat source heat exchanger (8) is also provided with a steam channel which is communicated with the heating furnace (11) through a second compressor (9) and a solar heat collecting system (10), the heating furnace (11) is also provided with a low-pressure steam channel which is communicated with the evaporator (1) through the second regenerator (13) and the evaporator (7) which is also communicated with the low-pressure evaporator (1) through the 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 heat source heat exchanger (8) is also provided with a heat source medium channel which is communicated with the outside, the evaporator (7) or the heat source medium channel is also communicated with the outside, and the expander (1) is connected with the compressor (3) and the second compressor (9) and transmits power to form the fuel type multi-energy carrying 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 type multi-energy co-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 solar heat collection system (10) through the second heat regenerator (13), and the second compressor (9) is regulated to be communicated with the solar heat collection system (10) through the second heat regenerator (13) after the steam channel of the second compressor (9) is communicated with the second heat regenerator (13), so that the fuel type multi-energy co-working-medium combined cycle steam power device is formed.

10. In the fuel type multifunctional single-working-medium combined cycle steam power device, a second booster pump and a low-temperature heat regenerator are added in any one of the fuel type multifunctional single-working-medium combined cycle steam power devices in claims 1-9, a condenser (6) is communicated with a condensate pipe and the booster pump (4) and is adjusted to be communicated with the low-temperature heat regenerator (15) through the second booster pump (14), a steam extraction channel is additionally arranged in the compressor (3) and is communicated with the low-temperature heat regenerator (15), and the low-temperature heat regenerator (15) is communicated with the booster pump (4) through the condensate pipe, so that the fuel type multifunctional single-working-medium combined cycle steam power device is formed.

11. In the fuel type multi-energy co-single-working-medium combined cycle steam power device, a second evaporator and a diffusion pipe are added in any one of the fuel type multi-energy co-single-working-medium combined cycle steam power devices in claims 1 and 3-9, a low-pressure steam channel of a regenerator (5) is communicated with the evaporator (7) and is regulated to be communicated with the second evaporator (16) through the evaporator (7), 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 evaporator (7) is communicated with the low-pressure steam channel of the compressor (3) and the condenser (6) respectively, the condenser (6) is communicated with the low-pressure steam channel of the compressor (3) and the condenser (6) respectively, a condensate pipe of the condenser (6) is communicated with the evaporator (7) through a pressure boost pump (4) and is regulated to be communicated with the condenser (6) through the pressure boost pump (4) and is communicated with the second evaporator (16) through the evaporator (7) and is communicated with the second evaporator (16) through the low-pressure steam channel of the evaporator (7), and the condensate pipe (16) is communicated with the second evaporator (6) through the single-working-medium and the evaporator (17) through the pressure pump.

12. In the fuel type multi-energy co-single-working-medium combined cycle steam power device, a second evaporator and a diffuser pipe are added in the fuel type multi-energy co-single-working-medium combined cycle steam power device, the low-pressure steam channel of the expander (1) is communicated with the evaporator (7) and is adjusted to be communicated with the second evaporator (16) through the evaporator (7), the low-pressure steam channel of the second expander (2) is communicated with the evaporator (7) and is adjusted 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 adjusted to be communicated with the second evaporator (16) through the low-pressure steam channel of the second evaporator (3) and the condenser (6), the condensate pipe of the condenser (6) is communicated with the second evaporator (16) through the booster pump (4) and is adjusted to be communicated with the condenser (6) through the condensate pipe (4) and the second evaporator (16), and the condensate pipe of the condensate pipe (6) is communicated with the second evaporator (16) through the second evaporator (16) and the multi-working-medium combined cycle steam power device is formed.

13. In the fuel type multifunctional single-working-medium combined cycle steam power device, a solar heat collection system (10) is named as a high-temperature photo-thermal system (10) more, a heat source medium channel communicated with the outside by a heat source heat exchanger (8) is omitted, a medium-temperature photo-thermal system (18) is added and the heat source heat exchanger (8) is replaced, so that the fuel type multifunctional single-working-medium combined cycle steam power device is formed.

14. In the fuel type multi-energy co-single-working-medium combined cycle steam power device, an expansion speed increaser (A) is added and replaces the expansion machine (1), a second expansion speed increaser (B) is added and replaces the second expansion machine (2), a dual-energy compressor (C) is added and replaces the compressor (3), a newly added diffuser pipe (D) is added and replaces the booster pump (4), a second dual-energy compressor (E) is added and replaces the second compressor (9) to form the fuel type multi-energy co-single-working-medium combined cycle steam power device.