CN117780467A

CN117780467A - Fuel carrying same nuclear energy combined cycle power device

Info

Publication number: CN117780467A
Application number: CN202311257359.2A
Authority: CN
Inventors: 李华玉; 李鸿瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-27
Filing date: 2023-09-23
Publication date: 2024-03-29

Abstract

The invention provides a fuel carrying nuclear energy combined cycle power device, and belongs to the technical field of thermodynamics and thermal dynamics. The outside is provided with an air channel which is communicated with a compressor, the compressor is also provided with a first air channel which is communicated with an expander through a heat regenerator, the expander is also provided with an air channel which is communicated with the outside through an intermediate heat exchanger, the compressor is also provided with a second air channel which is communicated with a combustion chamber through a nuclear reactor, the outside is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with a 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 intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the gas turbine are connected with the compressor and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

Description

Fuel carrying same nuclear energy combined cycle power device

Technical field:

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

The background technology is as follows:

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

The conventional fuel has different types and different properties, and the temperature of fuel gas formed by the combustion of the fuel directly determines the heat-changing work efficiency; limited by one or more factors such as the operating principle, the nature of the working medium, the nature of the materials, the manufacturing level of equipment and other components, and the like, in a thermodynamic device adopting high-grade fuel, the combustion process has larger irreversible loss due to temperature difference. The nuclear fuel can realize high-efficiency thermal power through helium-steam combined cycle, but is limited by factors such as working principle, material performance, safety requirement and the like, so that the application value of the nuclear fuel is not fully exerted, and the thermal efficiency of the nuclear fuel still has a larger improvement space.

The gas-steam combined cycle power device is a main means for obtaining power by using high-quality fuel combustion to form high-temperature heat load. In order to improve the power application value of high-quality fuel, the temperature of fuel gas formed by burning the fuel is improved as much as possible, and the temperature and the quantity of heat load of the fuel gas discharged by the gas turbine device are reduced. However, the higher the initial temperature of the gas, the higher the temperature of the gas turbine exhaust gas increases, and the heat transfer temperature difference loss between the upper and lower cycles in the gas-steam combined cycle system increases; therefore, advanced technological approaches are needed to reduce the irreversible loss of temperature differentials in premium fuel power applications.

The invention provides a fuel carrying and homonuclear combined cycle power device which uses nuclear fuel and high-grade fuel in a matching way based on the basic principle of simply, actively, safely and efficiently utilizing energy to obtain power, has the advantages of high heat efficiency, strong safety, simple structure and the like, greatly improves the heat change work efficiency and the application value of the nuclear fuel, and effectively reduces the construction cost of the power device.

The invention comprises the following steps:

the invention mainly aims to provide a fuel carrying and nuclear energy combined cycle power plant, and the specific invention is described in the following steps:

1. the fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump and condenser; the outside is provided with an air channel which is communicated with a compressor, the compressor is also provided with a first air channel which is communicated with an expander through a heat regenerator, the expander is also provided with an air channel which is communicated with the outside through an intermediate heat exchanger, the compressor is also provided with a second air channel which is communicated with a combustion chamber through a nuclear reactor, the outside is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with a 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 intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the gas turbine are connected with the compressor and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

2. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump and condenser; the outside is provided with an air channel which is communicated with a compressor, the compressor is also provided with a first air channel which is communicated with an expander through a heat regenerator, the expander is also provided with an air channel which is communicated with the outside through an intermediate heat exchanger, the compressor is also provided with a second air channel which is communicated with a combustion chamber through a nuclear reactor, the outside is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with a gas turbine, and the gas turbine is further provided with a gas channel which is communicated with the gas turbine through the intermediate heat exchanger after being communicated with the gas turbine through the heat regenerator; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the gas turbine are connected with the compressor and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

3. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump, condenser and second 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 intermediate heat exchanger, the compressor is also provided with a second air channel which is communicated with the combustion chamber through the second heat regenerator and the nuclear reactor, the outside is also provided with a fuel channel which is communicated with the combustion chamber, the 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 intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the gas turbine are connected with the compressor and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

4. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump, condenser and second regenerator; the outside is provided with an air channel which is communicated with a compressor, the compressor is also provided with a first air channel which is communicated with an expander through a heat regenerator, the expander is also provided with an air channel which is communicated with the outside through an intermediate heat exchanger, the compressor is also provided with a second air channel which is communicated with a combustion chamber through a second heat regenerator and a nuclear reactor, the outside is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with a gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the gas turbine through the intermediate heat exchanger after being communicated with the gas turbine; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the gas turbine are connected with the compressor and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

5. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump, condenser and second 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 intermediate heat exchanger, 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 through the nuclear reactor, the outside is also provided with a fuel channel which is communicated with the combustion chamber, the 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 intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the gas turbine are connected with the compressor and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

6. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump, condenser and second regenerator; the outside is provided with an air channel which is communicated with a compressor, the compressor is also provided with a first air channel which is communicated with an expander through a heat regenerator, the expander is also provided with an air channel which is communicated with the outside through an intermediate heat exchanger, the compressor is also provided with a second air channel which is communicated with the compressor through a second heat regenerator, then the compressor is also provided with an air channel which is communicated with a combustion chamber through a nuclear reactor, the outside is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with a 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 intermediate heat exchanger after the gas channel is also provided with a gas channel which is communicated with the compressor through the second heat regenerator; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander and the gas turbine are connected with the compressor and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

7. The fuel-carrying and nuclear-energy combined cycle power plant is characterized in that a diffuser pipe and a second intermediate heat exchanger are added in any one of the fuel-carrying and nuclear-energy combined cycle power plants in the 1 st to the 6 th, the communication between an air passage of the intermediate heat exchanger and the outside is adjusted to be that the air passage of the intermediate heat exchanger is communicated with the outside through the second intermediate heat exchanger, and the communication between a gas passage of the intermediate heat exchanger and the outside is adjusted to be that the gas passage of the intermediate heat exchanger is communicated with the outside through the second intermediate heat exchanger; the pressure boosting pump with condensate pipe is communicated with the intermediate heat exchanger, and the pressure boosting pump with condensate pipe is communicated with the intermediate heat exchanger through a diffusion pipe, so that the fuel carrying and nuclear energy combined cycle power plant is formed.

8. The fuel carrying and nuclear energy combined cycle power plant is formed by adding a second booster pump and a low-temperature heat regenerator in any one of the fuel carrying and nuclear energy combined cycle power plants of the 1 st to the 7 th, adjusting the communication between a condenser with condensate pipe and the booster pump to be that the condenser with condensate pipe is communicated with the low-temperature heat regenerator through the second booster pump, and adding a steam extraction channel to a steam turbine to be communicated with the low-temperature heat regenerator, and the low-temperature heat regenerator is further communicated with the booster pump through the condensate pipe.

9. The fuel-carrying and nuclear-energy combined cycle power plant is formed by adding an expansion speed increaser and replacing a steam turbine in any one of the fuel-carrying and nuclear-energy combined cycle power plants in the 7 th aspect.

10. The fuel-carrying and nuclear-energy combined cycle power plant is formed by adding an expansion speed increaser and replacing a steam turbine, adding a newly added diffuser pipe and replacing a booster pump in any one of the fuel-carrying and nuclear-energy combined cycle power plants in the 1 st to 8 th modes.

Description of the drawings:

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

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

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

FIG. 4 is a schematic thermodynamic system diagram of a fuel-carrying and nuclear power combined cycle power plant according to the present invention.

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

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

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

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

FIG. 9 is a schematic thermodynamic system diagram of a fuel-carrying and nuclear power combined cycle power plant according to the present invention, item 9.

In the figure, a 1-compressor, a 2-expander, a 3-gas turbine, a 4-nuclear reactor, a 5-combustion chamber, a 6-regenerator, a 7-intermediate heat exchanger, an 8-turbine, a 9-booster pump, a 10-condenser, an 11-second regenerator, a 12-diffuser pipe, a 13-second intermediate heat exchanger, a 14-second booster pump, a 15-low temperature regenerator, an A-expansion speed increaser and a B-newly added diffuser pipe.

Statement regarding high grade fuel, nuclear reactor and drawing of the accompanying drawings:

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

Correspondingly, there is low grade fuel, which refers to fuel with relatively low heat source temperature formed by combustion products.

(2) The method is limited by the prior technical conditions or material performance and other reasons, and particularly for fuels which need to provide driving heat load for the circulating working medium through indirect means, the grade of the fuels is divided by the temperature which can be reached by the circulating working medium under the prior technical conditions, namely, the fuel which can be reached by the circulating working medium is high-grade fuel, and the fuel which can be reached by the circulating working medium is low-grade fuel.

(3) In the present invention, the temperature that the compressed air can reach after absorbing heat through the nuclear reactor 4 is lower than the temperature that the compressed air can reach through the combustion chamber 5 for internal reference and combustion, the nuclear fuel belongs to low-grade fuel (energy source), and the fuel mentioned in the present application belongs to high-grade fuel.

(4) The nuclear reactor in the application of the invention is a heat supply device for directly or indirectly providing high-temperature heat load for a circulating working medium by utilizing nuclear energy, and generally comprises two conditions: (1) the nuclear fuel directly provides the circulating working medium flowing through the nuclear reactor with the heat energy released by nuclear reaction; (2) the heat energy released by the nuclear fuel by the nuclear reaction is first supplied to a circuit cooling medium and then supplied by the circuit cooling medium to the circulating fluid flowing through the nuclear reactor by means of a heat exchanger, which means that the heat exchanger is considered as an integral part of the nuclear reactor 4.

(5) Drawing with respect to the drawings: taking fig. 1 as an example, for simplicity of drawing, "the expander 2 is also in communication with the outside via the intermediate heat exchanger 7" and "the gas turbine 3 is also in communication with the outside via the regenerator 6 and the intermediate heat exchanger 7", the drawing in which the air passage and the gas passage share one passage is used is shown in fig. 1.

The specific embodiment is as follows:

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

The fuel-carrying and nuclear-powered combined cycle power plant shown in FIG. 1 is implemented as follows:

(1) Structurally, it mainly consists of compressor, expander, gas turbine, nuclear reactor, combustor, regenerator, intermediate heat exchanger, steam turbine, booster pump and 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 6, the expander 2 has air passage to communicate with outside through the intermediate heat exchanger 7, the compressor 1 has second air passage to communicate with combustion chamber 5 through the nuclear reactor 4, the outside has fuel passage to communicate with combustion chamber 5, combustion chamber 5 has gas passage to communicate with gas turbine 3, gas turbine 3 has gas passage to communicate with outside through regenerator 6 and intermediate heat exchanger 7; the condenser 10 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 7 through a booster pump 9, then the intermediate heat exchanger 7 is further provided with a steam channel which is communicated with the steam turbine 8, and the steam turbine 8 is also provided with a low-pressure steam channel which is communicated with the condenser 10; the condenser 10 is also provided with a cooling medium passage communicating with the outside, and the expander 2 and the gas turbine 3 are connected to the compressor 1 and transmit 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 6, the first path is subjected to depressurization and work through the expander 2 and is discharged outwards after heat release and cooling through the intermediate heat exchanger 7, and the second path is subjected to heat absorption and heating through the nuclear reactor 4 and enters the combustion chamber 5 to participate in combustion after the second path is continuously boosted and heated; the external fuel enters the combustion chamber 5, the fuel and the compressed air are mixed in the combustion chamber 5 and combusted to generate high-temperature fuel gas, the high-temperature fuel gas discharged by the combustion chamber 5 flows through the gas turbine 3 to perform decompression and work, and the high-temperature fuel gas flows through the regenerator 6 and the intermediate heat exchanger 7 to gradually release heat and cool, and is discharged to the outside; the condensate discharged by the condenser 10 is boosted by the booster pump 9, absorbs heat, warms up and vaporizes by the intermediate heat exchanger 7, and is decompressed and works by the steam turbine 8, and then enters the condenser 10 for heat release and condensation; the nuclear fuel provides driving thermal load through the nuclear reactor 4, the fuel provides driving thermal load through the combustion chamber 5, the cooling medium takes away low-temperature thermal load through the condenser 10, and the air and the fuel gas take away low-temperature thermal load through the inlet and outlet flow paths; the work output by the expander 2, the gas turbine 3 and the steam turbine 8 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 8 is provided for the compressor 1, the booster pump 9 and external power, so that the fuel carrying and nuclear combined cycle power device is formed.

The fuel-carrying and nuclear-powered combined cycle power plant shown in FIG. 2 is implemented as follows:

(1) Structurally, it mainly consists of compressor, expander, gas turbine, nuclear reactor, combustor, regenerator, intermediate heat exchanger, steam turbine, booster pump and condenser; the outside is provided with an air passage which is communicated with the compressor 1, the compressor 1 is also provided with a first air passage which is communicated with the expander 2 through the heat regenerator 6, the expander 2 is also provided with an air passage which is communicated with the outside through the intermediate heat exchanger 7, the compressor 1 is also provided with a second air passage which is communicated with the combustion chamber 5 through the nuclear reactor 4, the outside is also provided with a fuel passage which is communicated with the combustion chamber 5, the combustion chamber 5 is also provided with a gas passage which is communicated with the gas turbine 3, the gas turbine 3 is also provided with a gas passage which is communicated with the gas turbine 3 through the intermediate heat exchanger 7 after being communicated with the gas turbine 3 through the heat regenerator 6; the condenser 10 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 7 through a booster pump 9, then the intermediate heat exchanger 7 is further provided with a steam channel which is communicated with the steam turbine 8, and the steam turbine 8 is also provided with a low-pressure steam channel which is communicated with the condenser 10; the condenser 10 is also provided with a cooling medium passage communicating with the outside, and the expander 2 and the gas turbine 3 are connected to the compressor 1 and transmit power.

(2) In flow, compared with the fuel carrying co-nuclear combined cycle power plant shown in FIG. 1, the difference is that: the high-temperature gas discharged by the combustion chamber 5 enters the gas turbine 3 to perform depressurization and work, flows through the regenerator 6 to release heat and cool to a certain extent, then enters the gas turbine 3 to continue depressurization and work, and then flows through the intermediate heat exchanger 7 to release heat and cool and discharge to the outside to form the fuel carrying same nuclear energy combined cycle power plant.

The fuel-carrying and nuclear-powered combined cycle power plant shown in FIG. 3 is implemented as follows:

(1) Structurally, it mainly consists of a compressor, an expander, a gas turbine, a nuclear reactor, a combustion chamber, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second 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 the heat regenerator 6, the expander 2 is also provided with an air channel which is communicated with the outside through the intermediate heat exchanger 7, the compressor 1 is also provided with a second air channel which is communicated with the combustion chamber 5 through the second heat regenerator 11 and the nuclear reactor 4, the outside is also provided with a fuel channel which is communicated with the combustion chamber 5, the combustion chamber 5 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 11, the heat regenerator 6 and the intermediate heat exchanger 7; the condenser 10 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 7 through a booster pump 9, then the intermediate heat exchanger 7 is further provided with a steam channel which is communicated with the steam turbine 8, and the steam turbine 8 is also provided with a low-pressure steam channel which is communicated with the condenser 10; the condenser 10 is also provided with a cooling medium passage communicating with the outside, and the expander 2 and the gas turbine 3 are connected to the compressor 1 and transmit power.

(2) In flow, compared with the fuel carrying co-nuclear 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 11 and the nuclear reactor 4 to absorb heat gradually and raise temperature, and then enters the combustion chamber 5 to participate in combustion; the gas discharged by the gas turbine 3 is gradually released and cooled through the second heat regenerator 11, the heat regenerator 6 and the intermediate heat exchanger 7, and then is discharged from outside to form the fuel-carrying nuclear energy combined cycle power plant.

The fuel-carrying and nuclear-powered combined cycle power plant shown in FIG. 4 is implemented as follows:

(1) Structurally, it mainly consists of a compressor, an expander, a gas turbine, a nuclear reactor, a combustion chamber, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second 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 the heat regenerator 6, the expander 2 is also provided with an air channel which is communicated with the outside through the intermediate heat exchanger 7, the compressor 1 is also provided with a second air channel which is communicated with the combustion chamber 5 through the second heat regenerator 11 and the nuclear reactor 4, the outside is also provided with a fuel channel which is communicated with the combustion chamber 5, the combustion chamber 5 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 intermediate heat exchanger 7 after the gas channel is communicated with the gas turbine 3 through the second heat regenerator 11 and the heat regenerator 6; the condenser 10 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 7 through a booster pump 9, then the intermediate heat exchanger 7 is further provided with a steam channel which is communicated with the steam turbine 8, and the steam turbine 8 is also provided with a low-pressure steam channel which is communicated with the condenser 10; the condenser 10 is also provided with a cooling medium passage communicating with the outside, and the expander 2 and the gas turbine 3 are connected to the compressor 1 and transmit power.

(2) In flow, compared with the fuel carrying co-nuclear 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 11 and the nuclear reactor 4 to absorb heat gradually and raise temperature, and enters the combustion chamber 5 to participate in combustion; the high-temperature gas discharged by the combustion chamber 5 enters the gas turbine 3 to perform depressurization and work, flows through the second heat regenerator 11 and the heat regenerator 6 to gradually release heat and cool to a certain extent, then enters the gas turbine 3 to continue depressurization and work, and then flows through the intermediate heat exchanger 7 to release heat and cool and discharge to the outside to form the fuel carrying same nuclear energy combined cycle power plant.

The fuel-carrying and nuclear-powered combined cycle power plant shown in FIG. 5 is implemented as follows:

(1) Structurally, it mainly consists of a compressor, an expander, a gas turbine, a nuclear reactor, a combustion chamber, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second 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 the heat regenerator 6, the expander 2 is also provided with an air channel which is communicated with the outside through the intermediate heat exchanger 7, the compressor 1 is also provided with a second air channel which is communicated with the compressor 1 through the second heat regenerator 11, the compressor 1 is also provided with an air channel which is communicated with the combustion chamber 5 through the nuclear reactor 4, the outside is also provided with a fuel channel which is communicated with the combustion chamber 5, the combustion chamber 5 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 11, the heat regenerator 6 and the intermediate heat exchanger 7; the condenser 10 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 7 through a booster pump 9, then the intermediate heat exchanger 7 is further provided with a steam channel which is communicated with the steam turbine 8, and the steam turbine 8 is also provided with a low-pressure steam channel which is communicated with the condenser 10; the condenser 10 is also provided with a cooling medium passage communicating with the outside, and the expander 2 and the gas turbine 3 are connected to the compressor 1 and transmit power.

(2) In flow, compared with the fuel carrying co-nuclear 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 6 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 11 to absorb heat and heat; the air discharged by the second heat regenerator 11 enters the compressor 1 to continuously boost and heat, and then flows through the nuclear reactor 4 to absorb heat and enter the combustion chamber 5 to participate in combustion; the high-temperature gas discharged by the combustion chamber 5 is depressurized and works through the gas turbine 3, gradually releases heat and lowers temperature through the second heat regenerator 11, the heat regenerator 6 and the intermediate heat exchanger 7, and is discharged to the outside to form the fuel carrying the same nuclear energy combined cycle power device.

The fuel-carrying and nuclear-powered combined cycle power plant shown in FIG. 6 is implemented as follows:

(1) Structurally, it mainly consists of a compressor, an expander, a gas turbine, a nuclear reactor, a combustion chamber, a regenerator, an intermediate heat exchanger, a steam turbine, a booster pump, a condenser and a second 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 6, the expander 2 is also provided with an air channel which is communicated with the outside through an intermediate heat exchanger 7, the compressor 1 is also provided with a second air channel which is communicated with the compressor 1 through a second heat regenerator 11, then the compressor 1 is also provided with an air channel which is communicated with the combustion chamber 5 through a nuclear reactor 4, the outside is also provided with a fuel channel which is communicated with the combustion chamber 5, the combustion chamber 5 is also provided with a gas channel which is communicated with the gas turbine 3, the gas turbine 3 is also provided with a gas channel which is communicated with the gas turbine 3 through the heat regenerator 6 and the intermediate heat exchanger 7 after the gas channel is communicated with the gas turbine 3; the condenser 10 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 7 through a booster pump 9, then the intermediate heat exchanger 7 is further provided with a steam channel which is communicated with the steam turbine 8, and the steam turbine 8 is also provided with a low-pressure steam channel which is communicated with the condenser 10; the condenser 10 is also provided with a cooling medium passage communicating with the outside, and the expander 2 and the gas turbine 3 are connected to the compressor 1 and transmit power.

(2) In flow, compared with the fuel carrying co-nuclear 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 6 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 11 to absorb heat and heat; the air discharged by the second heat regenerator 11 enters the compressor 1 to continuously boost and heat, and then flows through the nuclear reactor 4 to absorb heat and enter the combustion chamber 5 to participate in combustion; the high-temperature gas discharged by the combustion chamber 5 enters the gas turbine 3 to perform depressurization and work, flows through the second heat regenerator 11 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 6 and the intermediate heat exchanger 7 to perform gradual heat release and cool down and discharge to the outside, and a fuel carrying same nuclear energy combined cycle power device is formed.

The fuel-carrying and nuclear-powered combined cycle power plant shown in FIG. 7 is implemented as follows:

(1) In the combined cycle power plant with the fuel carrying the same nuclear energy shown in the figure 1, a diffusion pipe and a second intermediate heat exchanger are added, the air passage of the intermediate heat exchanger 7 is communicated with the outside through a second intermediate heat exchanger 13, and the gas passage of the intermediate heat exchanger 7 is communicated with the outside through a second intermediate heat exchanger 13; the booster pump 9 has a condensate line and is connected to the intermediate heat exchanger 7, so that after the booster pump 9 has a condensate line and the second intermediate heat exchanger 13, the second intermediate heat exchanger 13 has a wet steam channel which is connected to the intermediate heat exchanger 7 via a diffuser 12.

(2) In flow, compared with the fuel carrying co-nuclear 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 intermediate heat exchanger 7 and the second intermediate heat exchanger 13, and then discharged to the outside; the fuel gas discharged by the heat regenerator 6 flows through the intermediate heat exchanger 7 and the second intermediate heat exchanger 13 to release heat and cool gradually, and then is discharged to the outside; the condensate discharged from the condenser 10 is boosted by the booster pump 9, is subjected to heat absorption and temperature rise, partial vaporization and speed increase by the second intermediate heat exchanger 13, is subjected to speed reduction and pressure boost by the diffuser pipe 12, is subjected to heat absorption and vaporization by the intermediate heat exchanger 7, and then enters the steam turbine 8 to be subjected to pressure reduction and work, so that the fuel-carrying nuclear combined cycle power plant is formed.

The fuel-carrying and nuclear-powered combined cycle power plant shown in FIG. 8 is implemented as follows:

(1) Structurally, in the combined cycle power plant with the fuel carrying the same nuclear energy shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, a condensate pipeline of the condenser 10 is communicated with the booster pump 9, the condensate pipeline of the condenser 10 is communicated with the low-temperature heat regenerator 15 through the second booster pump 14, a steam turbine 8 is additionally provided with a steam extraction channel to be communicated with the low-temperature heat regenerator 15, and the condensate pipeline of the low-temperature heat regenerator 15 is communicated with the booster pump 9.

(2) In flow, compared with the fuel carrying co-nuclear combined cycle power plant shown in FIG. 1, the difference is that: the condensate discharged by the condenser 10 flows through the second booster pump 14 to be boosted and then enters the low-temperature regenerator 15 to be mixed with the extraction steam from the steam turbine 8, absorbs heat and heats up, and the extraction steam is released to form condensate; condensate of the low-temperature heat regenerator 15 is boosted by the booster pump 9, is subjected to heat absorption, temperature rise and vaporization by the intermediate heat exchanger 7, and then enters the steam turbine 8 to be subjected to pressure reduction and work; the steam entering the steam turbine 8 is decompressed and worked to a certain extent and then is divided into two paths, wherein the first path is provided for the low-temperature heat regenerator 15, and the second path is continuously decompressed and worked and then enters the condenser 10 to release heat and condense, so that the fuel carrying nuclear energy combined cycle power plant is formed.

The fuel-carrying and nuclear-powered combined cycle power plant shown in FIG. 9 is implemented as follows:

(1) Structurally, in the fuel-carrying and homonuclear combined cycle power plant shown in fig. 1, an expansion speed increaser a is added to replace a steam turbine 8, and a new diffuser pipe B is added to replace a booster pump 9.

(2) In flow, compared with the fuel carrying co-nuclear combined cycle power plant shown in FIG. 1, the difference is that: the condensate of the condenser 10 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 an intermediate heat exchanger 7, is subjected to pressure reduction, work and speed increase through an expansion speed increaser A, and then enters the condenser 10 for heat release and condensation; 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 the fuel carrying same nuclear energy combined cycle power plant.

The fuel carrying and nuclear energy combined cycle power device provided by the invention has the following effects and advantages:

(1) The combustion products are directly used as the circulating working medium, and the driving heat load formed by the high-quality fuel is utilized in a grading way, so that the heat efficiency is improved.

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

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

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

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

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

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

(8) The high-grade fuel carries the same nuclear energy to realize high-efficiency thermal power, so that the economic value of nuclear energy conversion into mechanical energy is greatly improved, and the fuel cost is obviously reduced.

(9) And a plurality of regenerative technical means are provided, so that the coordination among the load, the thermal efficiency and the step-up ratio of the device is improved.

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

Claims

1. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump and 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 the heat regenerator (6), the expander (2) is also provided with an air channel which is communicated with the outside through the intermediate heat exchanger (7), the compressor (1) is also provided with a second air channel which is communicated with the combustion chamber (5) through the nuclear reactor (4), the outside is also provided with a fuel channel which is communicated with the combustion chamber (5), the combustion chamber (5) 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 (6) and the intermediate heat exchanger (7); the condenser (10) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (7) through a booster pump (9), the intermediate heat exchanger (7) is further provided with a steam channel which is communicated with the steam turbine (8), and the steam turbine (8) is also provided with a low-pressure steam channel which is communicated with the condenser (10); the condenser (10) is also communicated with the outside through a cooling medium channel, and the expander (2) and the gas turbine (3) are connected with the compressor (1) and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

2. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump and 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 the heat regenerator (6), the expander (2) is also provided with an air channel which is communicated with the outside through the intermediate heat exchanger (7), the compressor (1) is also provided with a second air channel which is communicated with the combustion chamber (5) through the nuclear reactor (4), the outside is also provided with a fuel channel which is communicated with the combustion chamber (5), the combustion chamber (5) 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 intermediate heat exchanger (7) after the gas channel is communicated with the gas turbine (3) through the heat regenerator (6); the condenser (10) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (7) through a booster pump (9), the intermediate heat exchanger (7) is further provided with a steam channel which is communicated with the steam turbine (8), and the steam turbine (8) is also provided with a low-pressure steam channel which is communicated with the condenser (10); the condenser (10) is also communicated with the outside through a cooling medium channel, and the expander (2) and the gas turbine (3) are connected with the compressor (1) and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

3. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump, condenser and second 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 the heat regenerator (6), the expander (2) is also provided with an air channel which is communicated with the outside through the intermediate heat exchanger (7), the compressor (1) is also provided with a second air channel which is communicated with the combustion chamber (5) through the second heat regenerator (11) and the nuclear reactor (4), the outside is also provided with a fuel channel which is communicated with the combustion chamber (5), the combustion chamber (5) is also provided with a fuel channel which is communicated with the gas turbine (3), and the gas turbine (3) is also provided with a fuel channel which is communicated with the outside through the second heat regenerator (11), the heat regenerator (6) and the intermediate heat exchanger (7); the condenser (10) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (7) through a booster pump (9), the intermediate heat exchanger (7) is further provided with a steam channel which is communicated with the steam turbine (8), and the steam turbine (8) is also provided with a low-pressure steam channel which is communicated with the condenser (10); the condenser (10) is also communicated with the outside through a cooling medium channel, and the expander (2) and the gas turbine (3) are connected with the compressor (1) and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

4. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump, condenser and second 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 (6), the expander (2) is also provided with an air channel which is communicated with the outside through an intermediate heat exchanger (7), the compressor (1) is also provided with a second air channel which is communicated with the combustion chamber (5) through a second heat regenerator (11) and a nuclear reactor (4), the outside is also provided with a fuel channel which is communicated with the combustion chamber (5), the combustion chamber (5) is also provided with a fuel channel which is communicated with the gas turbine (3), and the gas turbine (3) is also provided with a fuel channel which is communicated with the outside through the intermediate heat exchanger (7) after the fuel channel is also communicated with the gas turbine (3) through the second heat regenerator (11) and the heat regenerator (6); the condenser (10) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (7) through a booster pump (9), the intermediate heat exchanger (7) is further provided with a steam channel which is communicated with the steam turbine (8), and the steam turbine (8) is also provided with a low-pressure steam channel which is communicated with the condenser (10); the condenser (10) is also communicated with the outside through a cooling medium channel, and the expander (2) and the gas turbine (3) are connected with the compressor (1) and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

5. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump, condenser and second 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 the heat regenerator (6), the expander (2) is also provided with an air channel which is communicated with the outside through the intermediate heat exchanger (7), the compressor (1) is also provided with a second air channel which is communicated with the compressor through the second heat regenerator (11), after the compressor (1) is also provided with an air channel which is communicated with the combustion chamber (5) through the nuclear reactor (4), the outside is also provided with a fuel channel which is communicated with the combustion chamber (5), the combustion chamber (5) is also provided with a fuel channel which is communicated with the gas turbine (3), and the gas turbine (3) is also provided with a fuel channel which is communicated with the outside through the second heat regenerator (11), the heat regenerator (6) and the intermediate heat exchanger (7); the condenser (10) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (7) through a booster pump (9), the intermediate heat exchanger (7) is further provided with a steam channel which is communicated with the steam turbine (8), and the steam turbine (8) is also provided with a low-pressure steam channel which is communicated with the condenser (10); the condenser (10) is also communicated with the outside through a cooling medium channel, and the expander (2) and the gas turbine (3) are connected with the compressor (1) and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

6. The fuel carrying the combined cycle power plant of the same nuclear energy, mainly made up of compressor, expander, gas turbine, nuclear reactor, combustion chamber, regenerator, intermediate heat exchanger, steam turbine, booster pump, condenser and second 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 (6), the expander (2) is also provided with an air channel which is communicated with the outside through an intermediate heat exchanger (7), the compressor (1) is also provided with a second air channel which is communicated with the compressor through a second heat regenerator (11), after the compressor (1) is also provided with an air channel which is communicated with the combustion chamber (5) through a nuclear reactor (4), the outside is also provided with a fuel channel which is communicated with the combustion chamber (5), the combustion chamber (5) is also provided with a gas channel which is communicated with the gas turbine (3), and after the gas turbine (3) is also provided with the gas channel which is communicated with the compressor through the heat regenerator (6) and the intermediate heat exchanger (7); the condenser (10) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (7) through a booster pump (9), the intermediate heat exchanger (7) is further provided with a steam channel which is communicated with the steam turbine (8), and the steam turbine (8) is also provided with a low-pressure steam channel which is communicated with the condenser (10); the condenser (10) is also communicated with the outside through a cooling medium channel, and the expander (2) and the gas turbine (3) are connected with the compressor (1) and transmit power to form the fuel-carrying and nuclear combined cycle power plant.

7. In the fuel-carrying and nuclear-energy combined cycle power plant, a diffuser pipe and a second intermediate heat exchanger are added in any one of the fuel-carrying and nuclear-energy combined cycle power plants in claims 1-6, the communication between an air channel of the intermediate heat exchanger (7) and the outside is adjusted to be that the air channel of the intermediate heat exchanger (7) is communicated with the outside through the second intermediate heat exchanger (13), and the communication between a gas channel of the intermediate heat exchanger (7) and the outside is adjusted to be that the gas channel of the intermediate heat exchanger (7) is communicated with the outside through the second intermediate heat exchanger (13); the condensate pipeline of the booster pump (9) is communicated with the intermediate heat exchanger (7) and is adjusted to be that after the condensate pipeline of the booster pump (9) is communicated with the second intermediate heat exchanger (13), the second intermediate heat exchanger (13) is communicated with the intermediate heat exchanger (7) through a diffusion pipe (12) to form the fuel carrying and nuclear energy combined cycle power device.

8. In the fuel-carrying and nuclear-energy combined cycle power plant, a second booster pump and a low-temperature heat regenerator are added in any one of the fuel-carrying and nuclear-energy combined cycle power plants of claims 1-7, a condensate pipe of a condenser (10) is communicated with the booster pump (9) and is adjusted to be communicated with the low-temperature heat regenerator (15) through the second booster pump (14), a steam turbine (8) is additionally provided with a steam extraction channel which is communicated with the low-temperature heat regenerator (15), and the low-temperature heat regenerator (15) is further communicated with the booster pump (9) through the condensate pipe, so that the fuel-carrying and nuclear-energy combined cycle power plant is formed.

9. The fuel-carrying and nuclear-energy combined cycle power plant is formed by adding an expansion speed increaser (A) and replacing a steam turbine (8) in any fuel-carrying and nuclear-energy combined cycle power plant in claim 7.

10. In the fuel-carrying and nuclear-energy combined cycle power plant, an expansion speed increaser (A) is added to replace a steam turbine (8), a newly added diffuser pipe (B) is added to replace a booster pump (9) in any one of the fuel-carrying and nuclear-energy combined cycle power plants in claims 1-8, so that the fuel-carrying and nuclear-energy combined cycle power plant is formed.