CN118088316A

CN118088316A - Multifunctional gas-steam combined cycle power plant

Info

Publication number: CN118088316A
Application number: CN202410340510.7A
Authority: CN
Inventors: 李鸿瑞; 李华玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-28
Filing date: 2024-03-13
Publication date: 2024-05-28

Abstract

The invention provides a multifunctional gas-steam combined cycle power plant, belonging to the technical field of thermodynamics and thermal dynamics. The outside is provided with an air channel which is communicated with the compressor, the compressor is also provided with a first air channel which is communicated with the outside through a heat regenerator, an expander and an evaporator, the compressor is also provided with a second air channel which is communicated with the combustion chamber, the outside is provided with a low-grade fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a fuel gas channel which is communicated with the second combustion chamber through a solar heat collection system, the outside is provided with a high-grade fuel channel which is communicated with the second combustion chamber, and the second combustion chamber is also provided with a fuel gas channel which is communicated with the outside through a gas turbine, the heat regenerator and the evaporator; the condenser booster pump and the evaporator are communicated with a steam turbine, and the steam turbine is also communicated with a low-pressure steam channel; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine is connected with the compressor and transmits power to form the multi-energy gas-steam combined cycle power plant.

Description

Multifunctional gas-steam combined cycle power plant

Technical field:

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

The background technology is as follows:

The conventional fuel and photo-thermal 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 conventional fuel or light and heat are converted into mechanical energy; therefore, it is of positive significance to try to reduce the number of thermal power devices.

The system is limited by factors such as working principle, working medium property, material property and safety, and the like, the irreversible temperature difference loss exists in the power application process of photo-thermal, and the higher the temperature of a heat source is, the larger the irreversible temperature difference loss is; for conventional fuels, the higher the fuel grade, the greater the irreversible loss of temperature difference in the combustion process.

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 multi-energy carrying gas-steam combined cycle power device which has the advantages of reasonable flow, simple structure, small irreversible loss of systematic temperature difference of a thermodynamic device and reasonable thermodynamic perfection and high cost performance, and is characterized by step carrying among high-grade fuel, photo-thermal and low-grade fuel based on the principle of simply, actively, safely and efficiently utilizing energy to obtain power.

The invention comprises the following steps:

The invention mainly aims to provide a multifunctional portable gas-steam combined cycle power plant, and the specific invention is described in the following items:

1. The multifunctional gas-steam combined cycle power plant mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump and a condenser; the outside is provided with an air channel which is communicated with the compressor, the compressor is also provided with a first air channel which is communicated with the expander through the heat regenerator, the expander is also provided with an air channel which is communicated with the outside through the evaporator, the compressor is also provided with a second air channel which is communicated with the combustion chamber, the outside is provided with a low-grade fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with the second combustion chamber through the solar heat collection system, the outside is provided with a high-grade fuel channel which is communicated with the second combustion chamber, the second combustion chamber is also provided with a gas channel which is communicated with the gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the outside through the heat regenerator and the evaporator; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with a steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine is connected with the compressor and transmits power to form the multi-energy gas-steam combined cycle power plant.

2. The multifunctional gas-steam combined cycle power plant mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump and a condenser; the outside has air passage and compressor to communicate, the compressor has first air passage to communicate with expander through the regenerator, the expander has air passage to communicate with outside through the evaporator, the compressor has second air passage to communicate with combustion chamber, the outside has low-grade fuel passage to communicate with combustion chamber, the combustion chamber has fuel gas passage to communicate with second combustion chamber through the solar energy heat collecting system, the outside has high-grade fuel passage to communicate with second combustion chamber, the second combustion chamber has fuel gas passage to communicate with gas turbine, the gas turbine has fuel gas passage to communicate with outside through the evaporator after the gas turbine has fuel gas passage to communicate with oneself through the regenerator; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with a steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine is connected with the compressor and transmits power to form the multi-energy gas-steam combined cycle power plant.

3. The multi-energy combined cycle power device with the same gas and steam mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump, a condenser and a second heat regenerator; the outside is provided with an air channel which is communicated with the compressor, the compressor is also provided with a first air channel which is communicated with the expander through the heat regenerator, the expander is also provided with an air channel which is communicated with the outside through the evaporator, the compressor is also provided with a second air channel which is communicated with the combustion chamber through the second heat regenerator, the outside is provided with a low-grade fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with the second combustion chamber through the solar heat collecting system, the outside is provided with a high-grade fuel channel which is communicated with the second combustion chamber, the second combustion chamber is also provided with a gas channel which is communicated with the gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the outside through the second heat regenerator, the heat regenerator and the evaporator; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with a steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine is connected with the compressor and transmits power to form the multi-energy gas-steam combined cycle power plant.

4. The multi-energy combined cycle power device with the same gas and steam mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump, a condenser and a second heat regenerator; the outside has air passage and compressor to communicate, the compressor has first air passage to communicate with expander through the regenerator, the expander has air passage to communicate with outside through the evaporator, the compressor has second air passage to communicate with combustion chamber through the second regenerator, the outside has low-grade fuel passage to communicate with combustion chamber, the combustion chamber has gas passage to communicate with second combustion chamber through the solar energy heat collecting system, the outside has high-grade fuel passage to communicate with second combustion chamber, the second combustion chamber has gas passage to communicate with gas turbine, the gas turbine has gas passage to communicate with oneself through the evaporator after the gas turbine has gas passage to communicate with oneself through the second regenerator and regenerator again; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with a steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine is connected with the compressor and transmits power to form the multi-energy gas-steam combined cycle power plant.

5. The multi-energy combined cycle power device with the same gas and steam mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump, a condenser and a second heat regenerator; the outside is provided with an air channel which is communicated with the compressor, the compressor is also provided with a first air channel which is communicated with the expander through the heat regenerator, the expander is also provided with an air channel which is communicated with the outside through the evaporator, the compressor is also provided with a second air channel which is communicated with the compressor through the second heat regenerator, the compressor is also provided with an air channel which is communicated with the combustion chamber, the outside is provided with a low-grade fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with the second combustion chamber through the solar heat collection system, the outside is provided with a high-grade fuel channel which is communicated with the second combustion chamber, the second combustion chamber is also provided with a gas channel which is communicated with the gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the outside through the second heat regenerator, the heat regenerator and the evaporator; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with a steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine is connected with the compressor and transmits power to form the multi-energy gas-steam combined cycle power plant.

6. The multi-energy combined cycle power device with the same gas and steam mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump, a condenser and a second heat regenerator; the air channel is communicated with the compressor outside, the first air channel is communicated with the expander through the heat regenerator, the expander is communicated with the outside through the evaporator, the second air channel is communicated with the compressor through the second heat regenerator, the air channel is communicated with the combustion chamber, the low-grade fuel channel is communicated with the combustion chamber outside, the combustion chamber is communicated with the second combustion chamber through the solar heat collecting system, the high-grade fuel channel is communicated with the second combustion chamber outside, the second combustion chamber is communicated with the gas turbine through the gas channel, and the gas turbine is communicated with the outside through the heat regenerator and the evaporator after the gas channel is communicated with the compressor through the second heat regenerator; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with a steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine is connected with the compressor and transmits power to form the multi-energy gas-steam combined cycle power plant.

7. The multi-energy co-gas-steam combined cycle power plant is formed by adjusting the communication of the compressor with the second air channel and the combustion chamber to be divided into two paths, namely, the first path is communicated with the combustion chamber, the second path is communicated with the combustion chamber, and the solar heat collection system is communicated with the second combustion chamber, in any one of the multi-energy co-gas-steam combined cycle power plant of the 1 st to 2 th and the 5 th to 6 th.

8. The multi-energy co-gas-steam combined cycle power device is characterized in that in the multi-energy co-gas-steam combined cycle power device in the 3 rd or 4 th, a second air passage of a compressor is communicated with a combustion chamber through a second heat regenerator, and the compressor is adjusted to be divided into two paths after the second air passage of the compressor passes through the second heat regenerator, namely, the first path is communicated with the combustion chamber, the second path is communicated with the combustion chamber through the combustion chamber, and a solar heat collection system is communicated with the second combustion chamber, so that the multi-energy co-gas-steam combined cycle power device is formed.

9. The multi-energy co-gas-steam combined cycle power plant of any one of the 1 st to 8 th embodiments is provided with a diffuser pipe and a second evaporator, wherein the evaporator has an air passage and is communicated with the outside so as to be adjusted to be communicated with the outside through the second evaporator, and the evaporator has a gas passage and is communicated with the outside so as to be adjusted to be communicated with the outside through the second evaporator: the pressure boosting pump with condensate pipe and evaporator are communicated and adjusted to form a multifunctional gas-steam combined cycle power device, wherein the condensate pipe is arranged on the pressure boosting pump, the second evaporator is further provided with a wet steam channel, and the wet steam channel is communicated with the evaporator through a diffusion pipe.

10. The multi-energy co-gas-steam combined cycle power plant is formed by adding a second booster pump and a low-temperature heat regenerator in any one of the multi-energy co-gas-steam combined cycle power plants of the 1-8, adjusting the communication of a condenser condensate pipe and the booster pump to the communication of the condenser condensate pipe and the low-temperature heat regenerator through the second booster pump, and adding a steam extraction channel to the steam turbine to communicate with the low-temperature heat regenerator, wherein the low-temperature heat regenerator is further communicated with the booster pump through the condensate pipe.

11. The multi-energy co-gas-steam combined cycle power plant is formed by adding an expansion speed increaser and replacing a steam turbine in any multi-energy co-gas-steam combined cycle power plant of the 9 th aspect.

12. The multi-energy co-gas-steam combined cycle power plant is formed by adding an expansion speed increaser to replace a steam turbine, adding a new diffusion pipe and replacing a booster pump in any one of the multi-energy co-gas-steam combined cycle power plants of the 1-10 items.

Description of the drawings:

FIG. 1 is a schematic thermodynamic system diagram of a multi-energy co-fuel gas-steam combined cycle power plant according to the present invention.

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

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

FIG. 4 is a schematic thermodynamic system diagram of a multi-energy co-fuel gas-steam combined cycle power plant according to the present invention, no. 4.

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

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

FIG. 7 is a schematic thermodynamic system diagram of a multi-energy portable gas-steam combined cycle power plant according to the present invention.

FIG. 8 is a schematic thermodynamic system diagram of a multi-energy portable gas-steam combined cycle power plant according to the present invention.

FIG. 9 is a schematic thermodynamic system diagram of a multi-energy co-fuel gas-steam combined cycle power plant according to the present invention, FIG. 9.

FIG. 10 is a schematic thermodynamic system diagram of a multi-energy portable gas-steam combined cycle power plant according to the present invention.

In the figure, a 1-compressor, a 2-expander, a 3-gas turbine, a 4-combustion chamber, a 5-solar heat collection system, a 6-second combustion chamber, a 7-regenerator, an 8-evaporator, a 9-turbine, a 10-booster pump, an 11-condenser, a 12-second regenerator, a 13-diffuser pipe, a 14-second evaporator, a 15-second booster pump and a 16-low temperature regenerator are arranged; a-expansion speed increaser, B-newly added diffuser pipe.

The low-grade fuel and the high-grade fuel are briefly described here:

(1) Low grade fuel: refers to a fuel in which it is difficult for combustion products to form a high-temperature heat source of a relatively high temperature.

(2) High grade fuel: refers to a fuel in which the combustion products are able to form a higher temperature heat source.

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

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

(2) 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.

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

(4) There are two main types of heat supply modes of solar heat collection systems at present: firstly, the high-temperature heat energy converted by solar energy is directly supplied to a circulating working medium flowing through a solar heat collection system; and secondly, 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 brief description of the drawings and related expressions of the subject matter is as follows:

Drawing with respect to the drawings: taking fig. 1 as an example, for simplifying drawing, the "expander 2 and air channel are communicated with the outside through the evaporator 8" and the "gas turbine 3 and gas channel are communicated with the outside through the regenerator 7 and the evaporator 8" are shown in a drawing mode that the air channel and the gas channel share one channel in fig. 1; it is also stated that it is an alternative to combine air and fuel gas before entering the evaporator 8 or to combine fuel gas after flowing through the evaporator 8 separately.

The specific embodiment is as follows:

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

The multi-energy co-fuel gas-steam combined cycle power plant shown in fig. 1 is realized by:

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

(2) In the flow, the external air enters the compressor 1 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path is subjected to heat absorption and heating through the heat regenerator 7, is subjected to depressurization and work through the expander 2 and is discharged outwards after heat release and cooling through the evaporator 8, and the second path is subjected to continuous boosting and heating and then enters the combustion chamber 4 to participate in combustion; the external low-grade fuel enters a combustion chamber 4, the fuel and the compressed air are mixed in the combustion chamber 4 and combusted to generate primary fuel gas which has higher temperature and is rich in oxygen, and the primary fuel gas flows through a solar heat collection system 5 to absorb heat and raise temperature and then enters a second combustion chamber 6 to participate in combustion; the external high-grade fuel enters a second combustion chamber 6, the fuel and the primary fuel gas are mixed and combusted in the second combustion chamber 6 to generate fuel gas with higher temperature, the high-temperature fuel gas is subjected to depressurization and work by a gas turbine 3, gradually releases heat and lowers temperature by a regenerator 7 and an evaporator 8, and is discharged to the outside; the condensate discharged by the condenser 11 is boosted by the booster pump 10, is subjected to heat absorption, temperature rise and vaporization by the evaporator 8, is subjected to pressure reduction and work by the steam turbine 9, and then enters the condenser 11 for heat release and condensation; the low-grade fuel provides a driving heat load through the combustion chamber 4, the solar energy provides a driving heat load through the solar heat collection system 5, the high-grade fuel provides a driving heat load through the second combustion chamber 6, the cooling medium takes away the low-temperature heat load through the condenser 11, and the air and the fuel gas take away the discharging heat load through the in-out system flow; the work output by the expander 2, the gas turbine 3 and the steam turbine 9 is provided for the compressor 1 and external power, or the work output by the expander 2, the gas turbine 3 and the steam turbine 9 is provided for the compressor 1, the booster pump 10 and external power, so that the multifunctional combined cycle power plant with the gas and the steam is formed.

The multi-energy co-fuel gas-steam combined cycle power plant shown in fig. 2 is realized by:

(1) Structurally, the device mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump and a condenser; the outside has air passage and compressor 1 to communicate, the compressor 1 has first air passage to communicate with expander 2 through the regenerator 7, the expander 2 has air passage to communicate with outside through the evaporator 8, the compressor 1 has second air passage to communicate with combustion chamber 4, the outside has low-grade fuel passage to communicate with combustion chamber 4, combustion chamber 4 has gas passage to communicate with second combustion chamber 6 through the solar energy heat collecting system 5, the outside has high-grade fuel passage to communicate with second combustion chamber 6, the second combustion chamber 6 has gas passage to communicate with gas turbine 3, the gas turbine 3 has gas passage to communicate with oneself through the evaporator 8 after the gas turbine 3 has gas passage to communicate with oneself through the regenerator 7; the condenser 11 is provided with a condensate pipeline which is communicated with the evaporator 8 through a booster pump 10, then the evaporator 8 is further provided with a steam channel which is communicated with the steam turbine 9, and the steam turbine 9 is also provided with a low-pressure steam channel which is communicated with the condenser 11; the condenser 11 is also provided with a cooling medium passage communicating with the outside, and the gas turbine 3 is connected to the compressor 1 and transmits power.

(2) In terms of flow, compared with the multi-energy portable gas-steam combined cycle power plant shown in fig. 1, the difference is that: the high-temperature gas discharged by the second combustion chamber 6 enters the gas turbine 3 to perform depressurization and work, flows through the regenerator 7 to release heat and cool to a certain extent, then enters the gas turbine 3 to continue depressurization and work, flows through the evaporator 8 to release heat and cool and is discharged to the outside, and the multifunctional portable gas-steam combined cycle power device is formed.

The multi-energy co-fuel gas-steam combined cycle power plant shown in fig. 3 is realized by:

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

(2) In terms of flow, compared with the multi-energy portable gas-steam combined cycle power plant shown in fig. 1, the difference is that: the second path of air discharged by the compressor 1 flows through the second heat regenerator 12 to absorb heat and raise temperature, and then enters the combustion chamber 4 to participate in combustion; the gas discharged by the gas turbine 3 is gradually released and cooled through the second heat regenerator 12, the heat regenerator 7 and the evaporator 8, and then is discharged to the outside, so that the multifunctional portable gas-steam combined cycle power device is formed.

The multi-energy co-fuel gas-steam combined cycle power plant shown in fig. 4 is implemented as follows:

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

(2) In terms of flow, compared with the multi-energy portable gas-steam combined cycle power plant shown in fig. 1, the difference is that: the second path of air discharged by the compressor 1 flows through the second heat regenerator 12 to absorb heat and raise temperature, and then enters the combustion chamber 4 to participate in combustion; the high-temperature gas discharged by the second combustion chamber 6 enters the gas turbine 3 to perform depressurization and work, flows through the second heat regenerator 12 and the heat regenerator 7 to gradually release heat and cool down to a certain extent, then enters the gas turbine 3 to continue depressurization and work, and then flows through the evaporator 8 to release heat and cool down and discharge to the outside to form the multifunctional portable gas-steam combined cycle power device.

The multi-energy co-fuel gas-steam combined cycle power plant shown in fig. 5 is implemented as follows:

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

(2) In terms of flow, compared with the multi-energy portable gas-steam combined cycle power plant shown in fig. 1, the difference is that: the external air enters the compressor 1 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path flows through the heat regenerator 7 to absorb heat and then enters the expander 2 to be decompressed and work, and the second path continuously boosts and heats to a certain extent and then enters the second heat regenerator 12 to absorb heat and heat; the air discharged by the second heat regenerator 12 enters the compressor 1 to continuously boost and heat, and then enters the combustion chamber 4 to participate in combustion; the high-temperature gas discharged by the second combustion chamber 6 is subjected to depressurization and work through the gas turbine 3, gradually releases heat and lowers temperature through the second heat regenerator 12, the heat regenerator 7 and the evaporator 8, and is discharged outwards to form the multifunctional gas-steam combined cycle power plant.

The multi-energy co-fuel gas-steam combined cycle power plant shown in fig. 6 is implemented as follows:

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

(2) In terms of flow, compared with the multi-energy portable gas-steam combined cycle power plant shown in fig. 1, the difference is that: the external air enters the compressor 1 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path flows through the heat regenerator 7 to absorb heat and then enters the expander 2 to be decompressed and work, and the second path continuously boosts and heats to a certain extent and then enters the second heat regenerator 12 to absorb heat and heat; the air discharged by the second heat regenerator 12 enters the compressor 1 to continuously boost and heat, and then enters the combustion chamber 4 to participate in combustion; the high-temperature gas discharged by the second combustion chamber 6 enters the gas turbine 3 to perform depressurization and work, flows through the second heat regenerator 12 to release heat and cool to a certain extent, then enters the gas turbine 3 to continue depressurization and work, then flows through the heat regenerator 7 and the evaporator 8 to perform gradual heat release and cool down and discharge to the outside, and a multifunctional portable gas-steam combined cycle power device is formed.

The multi-energy co-fuel gas-steam combined cycle power plant shown in fig. 7 is implemented as follows:

(1) Structurally, in the multi-energy co-carried gas-steam combined cycle power plant shown in fig. 1, the second air passage of the compressor 1 is communicated with the combustion chamber 4, and the second air passage of the compressor 1 is divided into two paths, namely, the first path is communicated with the combustion chamber 4, the second path is communicated with the second combustion chamber 6 through the combustion chamber 4 and the solar heat collection system 5.

(2) In terms of flow, compared with the multi-energy portable gas-steam combined cycle power plant shown in fig. 1, the difference is that: the second path of air discharged by the compressor 1 is divided into two paths, wherein the first path of air enters the combustion chamber 4 to participate in combustion, and the second path of air enters the second combustion chamber 6 to participate in combustion after gradually absorbing heat and raising temperature through the combustion chamber 4 and the solar heat collection system 5, so that the multifunctional gas-steam combined cycle power plant with the same function is formed.

The multi-energy co-fuel gas-steam combined cycle power plant shown in fig. 8 is implemented as follows:

(1) In the structure, in the multi-energy gas-steam combined cycle power plant shown in fig. 1, a diffusion pipe and a second evaporator are added, the communication between an air channel of the evaporator 8 and the outside is adjusted to be that the air channel of the evaporator 8 is communicated with the outside through the second evaporator 14, and the communication between the gas channel of the evaporator 8 and the outside is adjusted to be that the gas channel of the evaporator 8 is communicated with the outside through the second evaporator 14; the booster pump 10 has a condensate line and is connected to the evaporator 8, so that after the booster pump 10 has a condensate line and is connected to the second evaporator 14, the second evaporator 14 has a wet steam channel which is connected to the evaporator 8 via a diffuser pipe 13.

(2) In terms of flow, compared with the multi-energy portable gas-steam combined cycle power plant shown in fig. 1, the difference is that: the air discharged from the expander 2 is gradually released and cooled through the evaporator 8 and the second evaporator 14, and then discharged to the outside; the fuel gas discharged by the heat regenerator 7 flows through the evaporator 8 and the second evaporator 14 to gradually release heat and cool, and then is discharged to the outside; condensate discharged by the condenser 11 is boosted by the booster pump 10, is subjected to heat absorption and temperature rise, partial vaporization and speed increase by the second evaporator 14, is subjected to speed reduction and pressure boost by the diffuser pipe 13, and then enters the evaporator 8 to be subjected to heat absorption and vaporization, so that the multifunctional gas-steam combined cycle power plant with the same function is formed.

The multi-energy co-fuel gas-steam combined cycle power plant shown in fig. 9 is implemented as follows:

(1) Structurally, in the multi-energy gas-steam combined cycle power plant shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, a condensate pipeline of the condenser 11 is communicated with the booster pump 10, the condensate pipeline of the condenser 11 is communicated with the low-temperature heat regenerator 16 through the second booster pump 15, a steam turbine 9 is additionally provided with a steam extraction channel which is communicated with the low-temperature heat regenerator 16, and the low-temperature heat regenerator 16 is further communicated with the booster pump 10.

(2) In terms of flow, compared with the multi-energy portable gas-steam combined cycle power plant shown in fig. 1, the difference is that: the condensate discharged by the condenser 11 flows through the second booster pump 15 to be boosted and then enters the low-temperature heat regenerator 16 to be mixed with the extracted steam from the steam turbine 9, absorbs heat and heats up, and the extracted steam is released to form condensate; condensate of the low-temperature heat regenerator 16 is boosted by the booster pump 10, is subjected to heat absorption, temperature rise and vaporization by the evaporator 8, and then enters the steam turbine 9 to be subjected to pressure reduction and work; the steam entering the steam turbine 9 is decompressed and worked, and is divided into two paths after reaching a certain degree, wherein the first path is provided for the low-temperature heat regenerator 16, and the second path is continuously decompressed and worked, enters the condenser 11 to release heat and condense, so that the multifunctional gas-steam combined cycle power plant with the same function is formed.

The multi-energy co-fuel gas-steam combined cycle power plant shown in fig. 10 is implemented as follows:

(1) Structurally, in the multi-energy gas-steam combined cycle power plant shown in fig. 1, an expansion speed increaser A is added to replace a steam turbine 9, a new diffuser pipe B is added to replace a booster pump 10.

(2) In terms of flow, compared with the multi-energy portable gas-steam combined cycle power plant shown in fig. 1, the difference is that: the condensate of the condenser 11 is subjected to speed reduction and pressure increase through a newly added diffuser pipe B, is subjected to heat absorption, temperature rise and vaporization through the evaporator 8, is subjected to pressure reduction, work and speed increase through an expansion speed increaser A, and then enters the condenser 11 for heat release and condensation; the work output by the expander 2, the gas turbine 3 and the expansion speed increaser A is provided for the compressor 1 and external power to form a multifunctional portable gas-steam combined cycle power device.

The invention has the effect that the technology can realize, namely the multifunctional gas-steam combined cycle power plant with the same function has the following effects and advantages:

(1) The low-grade fuel, the photo-thermal fuel and the high-grade fuel share the integrated thermal power system, so that the construction cost of the thermal power system is saved, and the performance price ratio is high.

(2) The utilization degree of the temperature difference in the back heating link between the gases is high, and the heat change work efficiency is improved; and in the heat transfer link between the gas 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-change work efficiency is improved.

(3) The low-grade fuel, the photo-thermal fuel and the high-grade fuel provide a thermal load link, the temperature difference loss is small, and the thermodynamic perfection is high.

(4) The low-grade fuel plays a larger role by means of photo-heat, so that the utilization value of the photo-heat converted into mechanical energy is improved; the photo-thermal plays a larger role by means of the high-grade fuel, and the utilization value of the high-grade fuel converted into mechanical energy is improved.

(5) The low-grade fuel, the photo-thermal fuel and the high-grade fuel form cascade carrying, so that the cross-type and cross-grade carrying are realized, the temperature difference loss is small, and the thermodynamic perfection is high.

(6) The driving heat load realizes graded utilization, the irreversible loss of the temperature difference of the system is small, and the heat change work efficiency and the thermodynamic perfection are high.

(7) The low-grade fuel can be used for or is beneficial to reducing the top circulation boosting ratio, improving the circulation working medium flow, and being beneficial to constructing a large-load multi-energy co-gas-steam combined cycle power device.

(8) 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 change work efficiency is improved.

(9) 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.

(10) The flow is reasonable, the structure is simple, and the scheme is rich; is beneficial to improving the energy utilization level and expanding the application range of the multifunctional gas-steam combined cycle power plant.

Claims

1. The multifunctional gas-steam combined cycle power plant mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump and a condenser; the outside is provided with an air channel which is communicated with the compressor (1), the compressor (1) is also provided with a first air channel which is communicated with the expander (2) through a heat regenerator (7), the expander (2) is also provided with an air channel which is communicated with the outside through an evaporator (8), the compressor (1) is also provided with a second air channel which is communicated with the combustion chamber (4), the outside is provided with a low-grade fuel channel which is communicated with the combustion chamber (4), the combustion chamber (4) is also provided with a fuel gas channel which is communicated with the second combustion chamber (6) through a solar heat collection system (5), the outside is provided with a high-grade fuel channel which is communicated with the second combustion chamber (6), the second combustion chamber (6) is also provided with a fuel gas channel which is communicated with the gas turbine (3), and the gas turbine (3) is also provided with a fuel gas channel which is communicated with the outside through the heat regenerator (7) and the evaporator (8); the condenser (11) is provided with a condensate pipeline which is communicated with the evaporator (8) through a booster pump (10), the evaporator (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the gas turbine (3) is connected with the compressor (1) and transmits power to form a multifunctional gas-steam combined cycle power plant.

2. The multifunctional gas-steam combined cycle power plant mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump and a condenser; the outside is provided with an air channel which is communicated with the compressor (1), the compressor (1) is also provided with a first air channel which is communicated with the expander (2) through a heat regenerator (7), the expander (2) is also provided with an air channel which is communicated with the outside through an evaporator (8), the compressor (1) is also provided with a second air channel which is communicated with the combustion chamber (4), the outside is provided with a low-grade fuel channel which is communicated with the combustion chamber (4), the combustion chamber (4) is also provided with a fuel gas channel which is communicated with the second combustion chamber (6) through a solar heat collection system (5), the outside is provided with a high-grade fuel channel which is communicated with the second combustion chamber (6), the second combustion chamber (6) is also provided with a fuel gas channel which is communicated with the gas turbine (3), and the gas turbine (3) is also provided with a fuel gas channel which is communicated with the outside through the evaporator (8) after the heat regenerator (7) is communicated with the gas turbine (3); the condenser (11) is provided with a condensate pipeline which is communicated with the evaporator (8) through a booster pump (10), the evaporator (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the gas turbine (3) is connected with the compressor (1) and transmits power to form a multifunctional gas-steam combined cycle power plant.

3. The multi-energy combined cycle power device with the same gas and steam mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump, a condenser and a second heat regenerator; the outside is provided with an air channel which is communicated with the compressor (1), the compressor (1) is also provided with a first air channel which is communicated with the expander (2) through a heat regenerator (7), the expander (2) is also provided with an air channel which is communicated with the outside through an evaporator (8), the compressor (1) is also provided with a second air channel which is communicated with the combustion chamber (4) through a second heat regenerator (12), the outside is provided with a low-grade fuel channel which is communicated with the combustion chamber (4), the combustion chamber (4) is also provided with a fuel gas channel which is communicated with the second combustion chamber (6) through a solar heat collecting system (5), the outside is provided with a high-grade fuel channel which is communicated with the second combustion chamber (6), the second combustion chamber (6) is also provided with a fuel gas channel which is communicated with the gas turbine (3), and the fuel gas turbine (3) is also provided with a fuel gas channel which is communicated with the outside through the second heat regenerator (12), the heat regenerator (7) and the evaporator (8); the condenser (11) is provided with a condensate pipeline which is communicated with the evaporator (8) through a booster pump (10), the evaporator (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the gas turbine (3) is connected with the compressor (1) and transmits power to form a multifunctional gas-steam combined cycle power plant.

4. The multi-energy combined cycle power device with the same gas and steam mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump, a condenser and a second heat regenerator; the outside is provided with an air channel which is communicated with the compressor (1), the compressor (1) is also provided with a first air channel which is communicated with the expander (2) through a heat regenerator (7), the expander (2) is also provided with an air channel which is communicated with the outside through an evaporator (8), the compressor (1) is also provided with a second air channel which is communicated with the combustion chamber (4) through a second heat regenerator (12), the outside is provided with a low-grade fuel channel which is communicated with the combustion chamber (4), the combustion chamber (4) is also provided with a fuel gas channel which is communicated with the second combustion chamber (6) through a solar heat collecting system (5), the outside is provided with a high-grade fuel channel which is communicated with the second combustion chamber (6), the second combustion chamber (6) is also provided with a fuel gas channel which is communicated with the gas turbine (3), and the gas turbine (3) is also provided with a fuel gas channel which is communicated with the outside through the evaporator (8) after the second heat regenerator (12) and the heat regenerator (7) are communicated with themselves; the condenser (11) is provided with a condensate pipeline which is communicated with the evaporator (8) through a booster pump (10), the evaporator (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the gas turbine (3) is connected with the compressor (1) and transmits power to form a multifunctional gas-steam combined cycle power plant.

5. The multi-energy combined cycle power device with the same gas and steam mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump, a condenser and a second heat regenerator; the outside is provided with an air channel which is communicated with the compressor (1), the compressor (1) is also provided with a first air channel which is communicated with the expander (2) through a heat regenerator (7), the expander (2) is also provided with an air channel which is communicated with the outside through an evaporator (8), the compressor (1) is also provided with a second air channel which is communicated with the compressor (1) through a second heat regenerator (12), the compressor (1) is also provided with an air channel which is communicated with the combustion chamber (4), the outside is provided with a low-grade fuel channel which is communicated with the combustion chamber (4), the combustion chamber (4) is also provided with a fuel gas channel which is communicated with the second combustion chamber (6) through a solar heat collecting system (5), the outside is provided with a high-grade fuel channel which is communicated with the second combustion chamber (6), the second combustion chamber (6) is also provided with a fuel gas channel which is communicated with the gas turbine (3), and the gas turbine (3) is also provided with a fuel gas channel which is communicated with the outside through the second heat regenerator (12), the heat regenerator (7) and the evaporator (8); the condenser (11) is provided with a condensate pipeline which is communicated with the evaporator (8) through a booster pump (10), the evaporator (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the gas turbine (3) is connected with the compressor (1) and transmits power to form a multifunctional gas-steam combined cycle power plant.

6. The multi-energy combined cycle power device with the same gas and steam mainly comprises a compressor, an expander, a gas turbine, a combustion chamber, a solar heat collection system, a second combustion chamber, a heat regenerator, an evaporator, a steam turbine, a booster pump, a condenser and a second heat regenerator; the outside is provided with an air channel which is communicated with the compressor (1), the compressor (1) is also provided with a first air channel which is communicated with the expander (2) through a heat regenerator (7), the expander (2) is also provided with an air channel which is communicated with the outside through an evaporator (8), the compressor (1) is also provided with a second air channel which is communicated with the compressor (1) through a second heat regenerator (12), the compressor (1) is also provided with an air channel which is communicated with the combustion chamber (4), the outside is provided with a low-grade fuel channel which is communicated with the combustion chamber (4), the combustion chamber (4) is also provided with a fuel gas channel which is communicated with the second combustion chamber (6) through a solar heat collecting system (5), the outside is provided with a high-grade fuel channel which is communicated with the second combustion chamber (6), the second combustion chamber (6) is also provided with a fuel gas channel which is communicated with the gas turbine (3), and the gas turbine (3) is also provided with a channel which is communicated with the outside through the heat regenerator (7) and the evaporator (8) after the second heat regenerator (12) is communicated with the gas channel; the condenser (11) is provided with a condensate pipeline which is communicated with the evaporator (8) through a booster pump (10), the evaporator (8) is further provided with a steam channel which is communicated with the steam turbine (9), and the steam turbine (9) is also provided with a low-pressure steam channel which is communicated with the condenser (11); the condenser (11) is also communicated with the outside through a cooling medium channel, and the gas turbine (3) is connected with the compressor (1) and transmits power to form a multifunctional gas-steam combined cycle power plant.

7. In the multi-energy co-gas-steam combined cycle power plant, any one of the multi-energy co-gas-steam combined cycle power plant described in claims 1-2 and 5-6, the communication of the compressor (1) with the combustion chamber (4) is adjusted to be that the compressor (1) is divided into two paths, namely, the first path is communicated with the combustion chamber (4) and the second path is communicated with the second combustion chamber (6) through the combustion chamber (4), and the solar heat collection system (5) is communicated with the second combustion chamber (6), so that the multi-energy co-gas-steam combined cycle power plant is formed.

8. In the multi-energy co-gas-steam combined cycle power plant according to claim 3 or claim 4, the compressor (1) is provided with a second air passage which is communicated with the combustion chamber (4) through the second heat regenerator (12), and the compressor (1) is regulated to be divided into two paths after the second air passage passes through the second heat regenerator (12), wherein the first path is communicated with the combustion chamber (4), the second path is communicated with the combustion chamber (4), and the solar heat collection system (5) is communicated with the second combustion chamber (6), so that the multi-energy co-gas-steam combined cycle power plant is formed.

9. In the multi-energy co-gas-steam combined cycle power plant, a diffuser pipe and a second evaporator are added in any one of the multi-energy co-gas-steam combined cycle power plants in claims 1-8, the air channel of the evaporator (8) is communicated with the outside and is adjusted to be communicated with the outside through the second evaporator (14), and the gas channel of the evaporator (8) is communicated with the outside and is adjusted to be communicated with the outside through the second evaporator (14); the condensate pipeline of the booster pump (10) is communicated with the evaporator (8) and is adjusted to be that after the condensate pipeline of the booster pump (10) is communicated with the second evaporator (14), the second evaporator (14) is communicated with the evaporator (8) through a diffusion pipe (13) so as to form the multifunctional gas-steam combined cycle power device.

10. A multi-energy co-gas-steam combined cycle power plant is characterized in that a second booster pump and a low-temperature heat regenerator are added in any one of the multi-energy co-gas-steam combined cycle power plants in claims 1-8, a condensate pipeline of a condenser (11) is communicated with a booster pump (10) and is adjusted to be communicated with a low-temperature heat regenerator (16) through a second booster pump (15) when the condensate pipeline of the condenser (11) is communicated with the low-temperature heat regenerator (16), a steam turbine (9) is additionally provided with a steam extraction channel which is communicated with the low-temperature heat regenerator (16), and the low-temperature heat regenerator (16) is further communicated with the booster pump (10) through the condensate pipeline, so that the multi-energy co-gas-steam combined cycle power plant is formed.

11. The multi-energy co-gas-steam combined cycle power plant is formed by adding an expansion speed increaser (A) and replacing a steam turbine (9) in any multi-energy co-gas-steam combined cycle power plant of claim 9.

12. The multi-energy co-gas-steam combined cycle power plant is characterized in that an expansion speed increaser (A) is added to replace a steam turbine (9), a new diffusion pipe (B) is added to replace a booster pump (10) in any one of the multi-energy co-gas-steam combined cycle power plants in claims 1-10, so that the multi-energy co-gas-steam combined cycle power plant is formed.