CN118327717A - Nuclear energy type energy carrying single-working-medium combined cycle steam power device - Google Patents

Abstract

The invention provides a nuclear energy carrying single-working-medium combined cycle steam power device, and belongs to the technical field of thermodynamics and thermal dynamics. The external fuel channel is communicated with the heating furnace, the external air channel is communicated with the heating furnace through the heat source regenerator, the heating furnace is also communicated with the external gas channel through the heat source regenerator, the compressor is provided with a first steam channel which is communicated with the evaporator through the regenerator and the second expander, the compressor is also provided with a second steam channel which is communicated with the heating furnace, the condenser is communicated with the heating furnace through the booster pump and the evaporator, the heating furnace is also provided with a steam channel which is communicated with the evaporator through the third expander, the nuclear reactor, the expander and the regenerator, and the evaporator is also provided with a low-pressure steam channel which is divided into two paths, wherein the first path is communicated with the compressor and the second path is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the nuclear energy type energy carrying single-working-medium combined cycle steam power device.

Description

Nuclear energy type energy carrying single-working-medium combined cycle steam power device

Technical field:

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

The background technology is as follows:

Under the current technical conditions, the temperature difference irreversible loss exists in the nuclear power application process taking a high-temperature gas cooled reactor as a typical; there is room for improvement in thermal efficiency for both conventional fuels and medium/high temperature heat resources represented by industrial waste heat.

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.

Based on the principle of simply, actively, safely and efficiently utilizing energy to obtain power, the invention provides a nuclear energy carrying and common fuel or common heat resource to provide driving energy, and the nuclear energy carrying and common single-working-medium combined cycle steam power device has flexible connection, reasonable flow, simple structure, small irreversible loss of systematic temperature difference of a thermal power device, flexible connection of grade between the nuclear energy and the common fuel or common heat resource, convenient share adjustment, reasonable thermodynamic perfection and high cost performance.

The invention comprises the following steps:

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

1. The nuclear energy carrying single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a regenerator, a condenser, an evaporator, a heating furnace, a heat source regenerator, a third expander and a nuclear reactor; the outside has fuel channel and heating furnace to communicate, the outside has air channel and heating furnace to communicate through the heat source regenerator, the heating furnace has fuel gas channel and outside to communicate through the heat source regenerator, the compressor has the first steam channel and communicates with second expander through the regenerator, the second expander has the low-pressure steam channel and evaporator to communicate, the compressor has the second steam channel and heating furnace to communicate, the condenser has condensate pipeline and evaporator to communicate with heating furnace through the booster pump, the heating furnace has the steam channel and nuclear reactor to communicate through the third expander, the nuclear reactor has the steam channel and expander to communicate, the expander has the low-pressure steam channel and evaporator to communicate through the regenerator, the evaporator has the low-pressure steam channel to divide into two ways-the first way communicates with compressor and the second way communicates with condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a nuclear energy type energy carrying single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor and the booster pump and transmits power.

2. The nuclear energy carrying single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a regenerator, a condenser, an evaporator, a heating furnace, a heat source regenerator, a third expander and a nuclear reactor; the outside has fuel channel and heating furnace to communicate, the outside has air channel and heating furnace to communicate through the heat source regenerator, the heating furnace has fuel gas channel and outside to communicate through the heat source regenerator, the compressor has the first steam channel and communicates with second expander through the regenerator, the second expander has the low-pressure steam channel and evaporator to communicate, the compressor has the second steam channel and heating furnace to communicate, the condenser has condensate pipeline and evaporator to communicate with heating furnace through the booster pump, the heating furnace has the steam channel and nuclear reactor to communicate through the third expander, the nuclear reactor has the steam channel and expander to communicate, the expander has the low-pressure steam channel and evaporator to communicate after the steam channel communicates with oneself through the regenerator, the evaporator has the low-pressure steam channel to divide into two ways-the first way communicates with compressor and the second way communicates with condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a nuclear energy type energy carrying single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor and the booster pump and transmits power.

3. The nuclear energy carrying single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a heating furnace, a heat source heat regenerator, a third expander, a nuclear reactor and a second heat regenerator; the outside has fuel channel and heating furnace to communicate, the outside has air channel and heating furnace to communicate through the heat source regenerator, the heating furnace has fuel gas channel and outside to communicate through the heat source regenerator, the compressor has first steam channel and second expander to communicate through the regenerator, the second expander has low-pressure steam channel and evaporator to communicate, the compressor has second steam channel and heating furnace to communicate, the condenser has condensate pipeline and evaporator to communicate with heating furnace after the booster pump communicates with evaporator, the heating furnace has steam channel and nuclear reactor to communicate through third expander and second regenerator, still steam channel and nuclear reactor to communicate with expander, the expander has low-pressure steam channel to communicate with evaporator through second expander and regenerator, the evaporator has low-pressure steam channel to divide into two ways-the first way communicates with compressor and the second way communicates with condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a nuclear energy type energy carrying single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor and the booster pump and transmits power.

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

5. The nuclear energy carrying single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a heating furnace, a heat source heat regenerator, a third expander, a nuclear reactor and a second heat regenerator; the outside has fuel channel and heating furnace to communicate, the outside has air channel and heating furnace to communicate through the heat source regenerator, the heating furnace has fuel gas channel and outside to communicate through the heat source regenerator, the compressor has the first steam channel and communicates with second expander through the regenerator, the second expander has the low-pressure steam channel and evaporator to communicate, the compressor has the second steam channel and heating furnace to communicate, the condenser has condensate pipeline and evaporator to communicate with heating furnace after the booster pump communicates with evaporator, the heating furnace has the steam channel and nuclear reactor to communicate through third expander and second regenerator, the nuclear reactor has the steam channel and expander to communicate with nuclear reactor, the expander has the low-pressure steam channel and communicates with evaporator through the regenerator after the steam channel is communicated with itself, the evaporator has the low-pressure steam channel to divide into two ways-the first way communicates with compressor and the second way communicates with condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a nuclear energy type energy carrying single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor and the booster pump and transmits power.

6. The nuclear energy carrying single-working-medium combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a heating furnace, a heat source heat regenerator, a third expander, a nuclear reactor and a second heat regenerator; the outside has fuel channel and heating furnace to communicate, the outside has air channel and heating furnace to communicate through the heat source regenerator, the heating furnace has fuel gas channel and outside to communicate through the heat source regenerator, the compressor has the first steam channel and communicates with second expander through the regenerator, the second expander has the low-pressure steam channel and evaporator to communicate, the compressor has the second steam channel and communicates with heating furnace through the second regenerator, the condenser has condensate pipeline and evaporator to communicate with after the evaporator is communicated with booster pump, the evaporator has the steam channel and heating furnace to communicate through the second regenerator, the heating furnace has the steam channel and the third expander to communicate with nuclear reactor, the nuclear reactor has the steam channel and expander to communicate with expander, the expander has the low-pressure steam channel and communicates with evaporator again after the expander is communicated with itself through the second regenerator, the evaporator has the low-pressure steam channel to divide into two ways-the first way and compressor communicates with second way and condenser communicates with condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a nuclear energy type energy carrying single-working-medium combined cycle steam power device; wherein, or the expander is connected with the compressor and the booster pump and transmits power.

7. The nuclear energy type energy carrying and single-working-medium combined cycle steam power device is characterized in that in the nuclear energy type energy carrying and single-working-medium combined cycle steam power device in the 3 rd or 5 th, a third expander with a steam channel is communicated with a nuclear reactor through a second heat regenerator, and the third expander with the steam channel is adjusted to be communicated with the nuclear reactor after the third expander with the steam channel is communicated with the third expander through the second heat regenerator, so that the nuclear energy type energy carrying and single-working-medium combined cycle steam power device is formed.

8. The nuclear energy type energy carrying and single-working-medium combined cycle steam power device is characterized in that a second booster pump and a low-temperature heat regenerator are added in any one of the nuclear energy type energy carrying and single-working-medium combined cycle steam power devices in the 1 st to the 7 th, a condenser condensate pipe is communicated with the booster pump and is adjusted to be communicated with the low-temperature heat regenerator through the second booster pump, a steam extraction channel is additionally arranged in the compressor and is communicated with the low-temperature heat regenerator, and the low-temperature heat regenerator is further communicated with the condensate pipe and the booster pump, so that the nuclear energy type energy carrying and single-working-medium combined cycle steam power device is formed.

9. The nuclear energy type energy carrying and single-working-medium combined cycle steam power device is characterized in that in any one of the nuclear energy type energy carrying and single-working-medium combined cycle steam power devices in the 1 st and the 3 th to the 7 th, a second evaporator and a diffusion pipe are added, the communication between a low-pressure steam channel of a regenerator and the evaporator is adjusted to be that the low-pressure steam channel of the regenerator is communicated with the second evaporator through the evaporator, the communication between the low-pressure steam channel of the second expander and the evaporator is adjusted to be that the low-pressure steam channel of the second expander is communicated with the second evaporator through the evaporator, the communication between the low-pressure steam channel of the evaporator and the compressor respectively is adjusted to be that the low-pressure steam channel of the second evaporator is respectively communicated with the compressor and the condenser, the condenser is adjusted to be that the condensate pipe of the condenser is communicated with the second evaporator through the booster pump, and the second evaporator is further communicated with the wet steam channel of the evaporator through the diffusion pipe, and the single-working-medium combined cycle steam power device is formed.

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

11. The nuclear energy type energy carrying and single-working-medium combined cycle steam power device is characterized in that in any one of the nuclear energy type energy carrying and single-working-medium combined cycle steam power devices in the 1 st to 10 th, an expansion speed increaser is added, an expansion machine is replaced, a second expansion speed increaser is added, a double-energy compressor is added, a compressor is replaced, a newly added diffuser pipe is added, a booster pump is replaced, a third expansion speed increaser is added, a third expansion machine is replaced, and the nuclear energy carrying and single-working-medium combined cycle steam power device is formed.

12. The nuclear energy type energy carrying and single-working-medium combined cycle steam power device is characterized in that in any one of the nuclear energy type energy carrying and single-working-medium combined cycle steam power devices in the 1 st to 11 th, a heat source regenerator is omitted, a low-grade fuel channel communicated with a heating furnace from outside is omitted, an air channel communicated with the heating furnace through the heat source regenerator from outside is omitted, a fuel gas channel communicated with the heating furnace from outside through the heat source regenerator is omitted, a heat source heat exchanger is added to replace the heating furnace, and a heat source medium channel is also communicated with the outside to form the fuel carrying and common regenerative type thermal power cycle device.

Description of the drawings:

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

FIG. 2 is a schematic thermodynamic system diagram of a combined cycle steam power plant with a single working medium for nuclear energy according to the present invention.

FIG. 3 is a schematic thermodynamic system diagram of a combined cycle steam power plant with a single working medium for nuclear energy according to the present invention.

FIG. 4 is a schematic thermodynamic system diagram of a combined cycle steam power plant with a single working medium for nuclear energy according to the present invention.

FIG. 5 is a schematic thermodynamic system diagram of a combined cycle steam power plant with a single working medium for nuclear energy according to the present invention.

FIG. 6 is a schematic thermodynamic system diagram of a combined cycle steam power plant with a single working medium for nuclear energy according to the present invention.

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

FIG. 8 is a schematic thermodynamic system diagram of an 8 th principle thermodynamic system for a nuclear power plant according to the present invention.

FIG. 9 is a schematic thermodynamic system diagram of a 9 th principle thermodynamic system for a nuclear power co-cycle single-working-medium combined cycle steam power plant according to the present invention.

FIG. 10 is a schematic diagram of a 10 th principle thermodynamic system of a nuclear power-carrying single-working-medium combined cycle steam power plant according to the present invention.

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

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

The following brief description is given here for nuclear energy and nuclear reactor:

The nuclear reactor in the present application is a heating device for directly or indirectly providing a high-temperature heat load to a working medium by using nuclear energy, and generally comprises two cases:

(1) The nuclear fuel directly provides the circulating working medium flowing through the nuclear reactor with heat energy released by nuclear reaction.

(2) The heat energy released by the nuclear reaction of the nuclear fuel 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 through a heat exchanger, which means that the heat exchanger is considered as an integral part of the nuclear reactor 11.

As for the fuel, the following brief description is given here:

(1) For solid fuels, the gaseous species of the combustion products are the core of the heat source and are an important component of the thermodynamic system; the solid substances in the combustion products, such as waste residues, are discharged after the heat energy contained in the combustion products is utilized (the utilization process and the equipment are contained in the heating furnace or the air is preheated outside the heating furnace body), and the functions are not separately listed.

(2) For the reasons of limited current technical conditions or material performance, etc., for the fuel which needs to provide driving high-temperature load for the circulating working medium through indirect means, the temperature which can be reached by the circulating working medium under the current technical conditions is adopted to divide the grade of the fuel, namely, the fuel which can be reached by the circulating working medium (working medium) at a higher temperature is high-grade fuel, and the fuel which can be reached by the circulating working medium (working medium) at a lower temperature is low-grade fuel.

The specific embodiment is as follows:

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

The nuclear energy carrying and single-working-medium combined cycle steam power plant shown in fig. 1 is realized by the following steps:

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

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

The nuclear energy carrying and single-working-medium combined cycle steam power plant shown in fig. 2 is realized by the following steps:

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

(2) In the flow, compared with the nuclear energy carrying single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged by the nuclear reactor 11 enters the expander 1 to perform depressurization work to a certain extent, then flows through the heat regenerator 5 to release heat and cool, enters the expander 1 to continue depressurization work, and then is provided for the evaporator 7 to form the nuclear energy carrying single-working-medium combined cycle steam power device.

The nuclear energy carrying and single-working-medium combined cycle steam power plant shown in fig. 3 is realized by the following steps:

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

(2) In the flow, compared with the nuclear energy carrying single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged by the third expander 10 is gradually absorbed in heat and increased in temperature through the second heat regenerator 12 and the nuclear reactor 11, is subjected to depressurization and work through the expander 1, is gradually released in heat and reduced in temperature through the second heat regenerator 12 and the heat regenerator 5, and is then supplied to the evaporator 7 to form the nuclear energy carrying single-working-medium combined cycle steam power device.

The nuclear energy carrying and single-working-medium combined cycle steam power plant shown in fig. 4 is realized by the following steps:

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

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

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

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

(2) In the flow, compared with the nuclear energy carrying single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged from the third expander 10 is gradually absorbed in heat and increased in temperature through the second regenerator 12 and the nuclear reactor 11, and then supplied to the expander 1; the steam enters the expander 1 to perform decompression and work, flows through the second heat regenerator 12 to release heat and cool to a certain extent, enters the expander 1 to continue decompression and work, flows through the heat regenerator 5 to release heat and cool, and then is supplied to the evaporator 7 to form the nuclear energy carrying single-working-medium combined cycle steam power device.

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

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

(2) In the flow, compared with the nuclear energy carrying single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the high-pressure steam discharged from the evaporator 7 and the compressor 3 flows through the second regenerator 12 to absorb heat and raise temperature, and is then supplied to the heating furnace 8; the steam discharged by the nuclear reactor 11 enters the expander 1 to perform depressurization and work to a certain extent, then flows through the second heat regenerator 12 to release heat and cool, enters the expander 1 to continue depressurization and work, then flows through the heat regenerator 5 to release heat and cool and is provided for the evaporator 7, and the nuclear energy carrying single-working-medium combined cycle steam power device is formed.

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

(1) In the nuclear power-carrying single-working-medium combined cycle steam power plant shown in fig. 3, the third expander 10 is configured to have a steam passage communicated with the nuclear reactor 11 through the second regenerator 12, and the third expander 10 is configured to have a steam passage communicated with itself through the second regenerator 12 and then the third expander 10 has a steam passage communicated with the nuclear reactor 11.

(2) In the flow, compared with the nuclear energy carrying single-working-medium combined cycle steam power plant shown in fig. 3, the difference is that: the steam discharged by the heating furnace 8 enters the third expander 10 to be depressurized for working, flows through the second heat regenerator 12 to absorb heat and raise temperature to a certain extent, enters the third expander 10 to continuously raise pressure and raise temperature, and is provided for the nuclear reactor 11 to form the nuclear energy type energy carrying single-working-medium combined cycle steam power device.

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

(1) In the nuclear energy carrying single-working-medium combined cycle steam power device shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, the communication between a condensate pipe of a condenser 6 and the booster pump 4 is adjusted to be that the condensate pipe of the condenser 6 is communicated with the low-temperature heat regenerator 14 through a second booster pump 13, a steam extraction channel is additionally arranged on the compressor 3 and is communicated with the low-temperature heat regenerator 14, and the condensate pipe of the low-temperature heat regenerator 14 is communicated with the booster pump 4.

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

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

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

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

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

(1) Structurally, in the nuclear energy carrying single-working-medium combined cycle steam power plant shown in fig. 1, an expansion speed increaser a is added and replaces the expansion machine 1, a second expansion speed increaser B is added and replaces the second expansion machine 2, a dual-energy compressor C is added and replaces the compressor 3, a newly added diffuser pipe D is added and replaces the booster pump 4, and a third expansion speed increaser E is added and replaces the third expansion machine 10.

(2) In the flow, compared with the nuclear energy carrying single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: part of low-pressure steam discharged by the evaporator 7 enters the dual-energy compressor C to be boosted, heated and decelerated to a certain extent and then is divided into two paths, wherein the first path is subjected to heat absorption and heating through the heat regenerator 5, and the second path is subjected to depressurization, work and acceleration through the second expansion speed increaser B and then is provided for the evaporator 7, and the second path is subjected to heat absorption and heating through the heating furnace 8 after the second path is subjected to continuous boosting and heating; condensate discharged by the condenser 6 flows through the newly added diffuser pipe D to be reduced in speed and boosted, flows through the evaporator 7 to absorb heat and raise temperature and vaporize, and then enters the heating furnace 8 to absorb heat and raise temperature; the steam discharged by the heating furnace 8 is subjected to depressurization, work and deceleration through the third expansion speed increaser E, is subjected to heat absorption and temperature rise through the nuclear reactor 11, is subjected to depressurization, work and deceleration through the expansion speed increaser A, is subjected to heat release and temperature reduction through the heat regenerator 5, and is then supplied to the evaporator 7; the low-pressure steam discharged by the heat regenerator 5 and the second expansion speed increaser B flows through the evaporator 7 to release heat and cool, and then is divided into two paths, wherein the first path enters the dual-energy compressor C to raise the pressure and raise the temperature and reduce the speed, and the second path enters the condenser 6 to release heat and condense; the work output by the expansion speed increaser A, the second expansion speed increaser B and the third expansion speed increaser E is provided for the dual-energy compressor C and external acting force to form the nuclear energy type energy carrying and single-working-medium combined cycle steam power device.

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

In the nuclear energy carrying single-working-medium combined cycle steam power device shown in fig. 1, a heat source regenerator is omitted, a low-grade fuel channel communicated with a heating furnace 8 from outside is omitted, an air channel communicated with the heating furnace 8 from outside through a heat source regenerator 9 is omitted, a fuel gas channel communicated with the outside through the heating furnace 8 through the heat source regenerator 9 is omitted, a heat source heat exchanger F is added to replace the heating furnace 8, and the heat source heat exchanger F is also communicated with the outside through a heat source medium channel; the heat source medium replaces fuel and drives heat load through the heat source heat exchanger F2 to form the nuclear energy type energy carrying single-working-medium combined cycle steam power device.

The nuclear energy carrying single-working-medium combined cycle steam power device has the following effects and advantages:

(1) The nuclear energy and the conventional fuel or the nuclear energy and the conventional heat resource share the integrated thermal power system, the thermal power systems of different driving energy sources are combined into a whole, the construction cost of the thermal power system is saved, and the cost performance is high.

(2) The nuclear energy and the conventional fuel or the nuclear energy and the conventional heat resource are carried together by cross-type and cross-grade energy sources, so that the connection is flexible and the thermodynamic perfection is high.

(3) The nuclear energy, the conventional fuel or the nuclear energy and the conventional heat resource provide driving heat load links, the temperature difference loss is small, and the thermodynamic perfection is high.

(4) Conventional fuels or conventional heat resources play a greater role by means of nuclear energy, significantly improving the utility value of nuclear energy conversion into mechanical energy.

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

(6) The method can flexibly connect different grades of conventional fuel or heat source media, flexibly adjust the utilization share of different grades of driving energy, and effectively reduce the irreversible loss of temperature difference in the process of providing driving heat load by nuclear energy (converting the nuclear energy into heat energy).

(7) The conventional fuel or the conventional heat resource can be used for or is beneficial to reducing the pressure boosting ratio of the combined cycle, improving the flow of the cycle working medium, and being beneficial to constructing the large-load nuclear energy carrying single-working-medium combined cycle steam power device.

(8) The utilization degree of the temperature difference in the back heating link between gases (steam) is high, and the heat-changing work efficiency is improved.

(9) And in the regenerative link between the gas (steam) working medium and the liquid working medium, the flow rate of the gas working medium is large, the temperature change interval is relatively narrow, the irreversible loss of the temperature difference is reduced, and the heat-variable work efficiency is improved.

(10) 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.

(11) 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.

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

Claims (12)

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

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

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

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

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

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

7. In the nuclear energy type energy carrying and single-working-medium combined cycle steam power device according to claim 3 or claim 5, a steam channel of the third expander (10) is communicated with the nuclear reactor (11) through the second heat regenerator (12), and the steam channel of the third expander (10) is communicated with the nuclear reactor (11) after the steam channel of the third expander (10) is communicated with the nuclear reactor through the second heat regenerator (12), so that the nuclear energy type energy carrying and single-working-medium combined cycle steam power device is formed.

8. In the nuclear energy type energy carrying and single-working-medium combined cycle steam power device, a second booster pump and a low-temperature heat regenerator are added in any one of the nuclear energy type energy carrying and single-working-medium combined cycle steam power devices according to claims 1-7, a condenser (6) is communicated with a condensate pipe and the booster pump (4) and is adjusted to be communicated with the low-temperature heat regenerator (14) through a second booster pump (13), a steam extraction channel is additionally arranged in the compressor (3) and is communicated with the low-temperature heat regenerator (14), and the low-temperature heat regenerator (14) is further communicated with the condensate pipe and the booster pump (4), so that the nuclear energy type energy carrying and single-working-medium combined cycle steam power device is formed.

9. In the nuclear energy type energy carrying and single-working-medium combined cycle steam power device, a second evaporator and a diffusion pipe are added in any one of the nuclear energy type energy carrying and single-working-medium combined cycle steam power devices according to claims 1 and 3-7, a low-pressure steam channel of a regenerator (5) is communicated with the evaporator (7) and is regulated to be communicated with the second evaporator (15) through the evaporator (7), the second expander (2) is communicated with the evaporator (7) and is regulated to be communicated with the second evaporator (2) through the evaporator (7), the evaporator (7) is communicated with the compressor (3) and the condenser (6) respectively, a condensate pipe of the condenser (6) is communicated with the evaporator (7) through a pressure boosting pump (4) and is regulated to be communicated with the condenser (6) through the pressure boosting pump (4) and is communicated with the second evaporator (15) through the evaporator (7) through the pressure boosting pump (7), and then the condensate pipe of the condenser (15) is communicated with the second evaporator (6) through the pressure boosting pump (3) and is communicated with the condenser (6) through the pressure boosting pump respectively, and the condensate pipe of the second evaporator (15) is communicated with the second evaporator (3) through the pressure boosting pump (15) and the condensate pipe is formed.

10. In the nuclear energy type energy carrying and single-working-medium combined cycle steam power device, a second evaporator and a diffuser pipe are added in the nuclear energy type energy carrying and single-working-medium combined cycle steam power device, the low-pressure steam channel of an expander (1) is communicated with the evaporator (7) and is adjusted to be communicated with the second evaporator (15) through the evaporator (7), the low-pressure steam channel of a second expander (2) is communicated with the evaporator (7) and is adjusted to be communicated with the second evaporator (2) through the evaporator (7), the low-pressure steam channel of the evaporator (7) is respectively communicated with the compressor (3) and the condenser (6) and is adjusted to be communicated with the second evaporator (15) through the low-pressure steam channel of the second evaporator (15), a condensate pipe of the condenser (6) is communicated with the evaporator (7) through a booster pump (4) and is adjusted to be communicated with the condenser (6) through the condenser (6) and is communicated with the second evaporator (15) through the evaporator (7), and the single-working-medium combined cycle steam power device is formed after the condensate pipe is communicated with the second evaporator (15) through the evaporator (15).

11. In the nuclear energy type energy carrying and single-working-medium combined cycle steam power device, an expansion speed increaser (A) is added and replaces an expansion machine (1), a second expansion speed increaser (B) is added and replaces a second expansion machine (2), a dual-energy compressor (C) is added and replaces a compressor (3), a newly added diffuser pipe (D) is added and replaces a booster pump (4), a third expansion speed increaser (E) is added and replaces a third expansion machine (10) to form the nuclear energy type energy carrying and single-working-medium combined cycle steam power device.

12. The nuclear energy type energy carrying and single-working-medium combined cycle steam power device is characterized in that in any one of the nuclear energy type energy carrying and single-working-medium combined cycle steam power devices in claims 1-11, a heat source regenerator is omitted, a low-grade fuel channel communicated with a heating furnace (8) from outside is omitted, an air channel communicated with the heating furnace (8) from outside through the heat source regenerator (9) is omitted, a gas channel communicated with the outside through the heat source regenerator (9) from the heating furnace (8) is omitted, a heat source heat exchanger (F) is added to replace the heating furnace (8), and the heat source heat exchanger (F) is also communicated with the outside through a heat source medium channel to form the fuel carrying and same-heat type thermal dynamic circulating device.