CN117759431A - High-grade fuel carrying same nuclear energy combined cycle power device - Google Patents
High-grade fuel carrying same nuclear energy combined cycle power device Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims abstract description 135
- 238000010438 heat treatment Methods 0.000 claims abstract description 95
- 239000002737 fuel gas Substances 0.000 claims abstract description 21
- 239000002826 coolant Substances 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims description 15
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- 238000010586 diagram Methods 0.000 description 12
- 239000003758 nuclear fuel Substances 0.000 description 9
- 230000009467 reduction Effects 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 5
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Abstract
The invention provides a high-grade fuel carrying nuclear energy combined cycle power device, and belongs to the technical field of energy and power. The outside is provided with an air channel which is communicated with the heating furnace through the heat source regenerator and the nuclear reactor, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator; the compressor is provided with a circulating working medium channel which is communicated with the expander through the heating furnace, the expander is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger, and the high-temperature heat exchanger is also provided with a circulating working medium channel which is communicated with the compressor; the condenser is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger through the booster pump, then the high-temperature 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 is connected with the compressor and transmits power to form the high-grade fuel carrying the same nuclear energy combined cycle power device.
Description
Technical field:
the invention belongs to the technical field of energy and power.
The background technology is as follows:
high-grade fuel is an important option for providing high-temperature heat energy, and high-efficiency thermal work is realized through a gas-steam combined cycle device. The nuclear fuel can realize high-efficiency thermal power through helium-steam combined cycle, however, the application value of the nuclear fuel is not fully exerted due to factors such as limited working principle, material performance and safety requirements, and the thermal efficiency of the nuclear fuel still has a larger improvement space. After extensive analysis, it was found that: in the thermodynamic device with high-grade fuel as input energy and the thermodynamic device with nuclear fuel as input energy, the thermodynamic device has larger irreversible temperature difference loss and needs to be improved.
There is a need for simple, active, safe and efficient use of a variety of energy sources to obtain power. Therefore, the invention provides the high-grade fuel carrying and nuclear energy combined cycle power device which reasonably matches the high-grade fuel with nuclear energy (nuclear fuel) to make up for the advantages of the shortages, the energy consumption cost and the device manufacturing cost, and the nuclear energy thermal work efficiency is obviously improved.
The invention comprises the following steps:
the invention mainly aims to provide a high-grade fuel-carrying co-nuclear combined cycle power plant, and the specific invention is described in the following items:
1. the high-grade fuel carrying the same nuclear energy combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace and a heat source regenerator; the outside is provided with an air channel which is communicated with the heating furnace through the heat source regenerator and the nuclear reactor, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator; the compressor is provided with a circulating working medium channel which is communicated with the expander through the heating furnace, the expander is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger, and the high-temperature heat exchanger is also provided with a circulating working medium channel which is communicated with the compressor; the condenser is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger through the booster pump, then the high-temperature 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 is connected with the compressor and transmits power to form the high-grade fuel carrying the same nuclear energy combined cycle power device.
2. The high-grade fuel carrying the same nuclear energy combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with the heating furnace through the heat source regenerator and the nuclear reactor, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator; the compressor is provided with a circulating working medium channel which is communicated with the expander through the high-temperature heat regenerator and the heating furnace, the expander is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger through the high-temperature heat regenerator, and the high-temperature heat exchanger is also provided with a circulating working medium channel which is communicated with the compressor; the condenser is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger through the booster pump, then the high-temperature 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 is connected with the compressor and transmits power to form the high-grade fuel carrying the same nuclear energy combined cycle power device.
3. The high-grade fuel carrying the same nuclear energy combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with the heating furnace through the heat source regenerator and the nuclear reactor, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator; the compressor is provided with a circulating working medium channel which is communicated with the expander through the heating furnace, the expander is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger through the high-temperature heat regenerator, and the high-temperature heat exchanger is also provided with a circulating working medium channel which is communicated with the compressor through the high-temperature heat regenerator after the circulating working medium channel is communicated with the compressor; the condenser is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger through the booster pump, then the high-temperature 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 is connected with the compressor and transmits power to form the high-grade fuel carrying the same nuclear energy combined cycle power device.
4. The high-grade fuel carrying the same nuclear energy combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with the heating furnace through the heat source regenerator and the nuclear reactor, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator; the compressor is provided with a circulating working medium channel which is communicated with the expander through the high-temperature heat regenerator and the heating furnace, the expander is also provided with a circulating working medium channel which is communicated with the expander through the high-temperature heat regenerator, the expander is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger, and the high-temperature heat exchanger is also provided with a circulating working medium channel which is communicated with the compressor; the condenser is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger through the booster pump, then the high-temperature 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 is connected with the compressor and transmits power to form the high-grade fuel carrying the same nuclear energy combined cycle power device.
5. The high-grade fuel carrying the same nuclear energy combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with the heating furnace through the heat source regenerator and the nuclear reactor, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace, and the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator; the compressor is provided with a circulating working medium channel which is communicated with the expander through a heating furnace, the expander is also provided with a circulating working medium channel which is communicated with the expander through a high-temperature heat regenerator, the expander is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger, and the high-temperature heat exchanger is also provided with a circulating working medium channel which is communicated with the compressor after the compressor is provided with a circulating working medium channel which is communicated with the expander through the high-temperature heat regenerator; the condenser is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger through the booster pump, then the high-temperature 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 is connected with the compressor and transmits power to form the high-grade fuel carrying the same nuclear energy combined cycle power device.
6. The high-grade fuel carrying and nuclear energy combined cycle power plant is formed by adding a dual-energy compressor to replace the compressor, adding an expansion speed increaser to replace the expansion machine in any one of the high-grade fuel carrying and nuclear energy combined cycle power plants in the 1-5 th step.
7. The high-grade fuel-carrying and nuclear-energy combined cycle power plant is formed by adjusting the communication between a high-temperature heat exchanger circulating medium channel and a compressor to the communication between a high-temperature heat exchanger working medium channel and the outside and the communication between the working medium channel and the compressor in any one of the high-grade fuel-carrying and nuclear-energy combined cycle power plants in the 1 st to 5 th modes.
8. The high-grade fuel-carrying and nuclear-energy combined cycle power plant is formed by adjusting the communication between a steam channel of a high-temperature heat exchanger and a steam turbine in any one of the high-grade fuel-carrying and nuclear-energy combined cycle power plants in the 1 st to 7 th modes to be communicated with the steam channel of the high-temperature heat exchanger through a nuclear reactor and the steam turbine.
9. The high-grade fuel-carrying co-nuclear combined cycle power plant is characterized in that in any one of the high-grade fuel-carrying co-nuclear combined cycle power plants in the 1 st to the 7 th, the high-temperature heat exchanger with a steam channel is communicated with the steam turbine, and the steam turbine is communicated with the high-temperature heat exchanger with the steam channel through the nuclear reactor after the high-temperature heat exchanger with the steam channel is communicated with the steam turbine, so that the high-grade fuel-carrying co-nuclear combined cycle power plant is formed.
10. The high-grade fuel carrying and nuclear energy combined cycle power plant is characterized in that a second booster pump and a low-temperature heat regenerator are added in any one of the high-grade fuel carrying and nuclear energy combined cycle power plants in the 1 st to the 9 th, a condenser condensate pipe is communicated with the booster pump and is adjusted to be communicated with the low-temperature heat regenerator through the second booster pump, a steam turbine is provided with a steam extraction channel and is communicated with the low-temperature heat regenerator, and the low-temperature heat regenerator is communicated with the booster pump through a condensate pipe, so that the high-grade fuel carrying and nuclear energy combined cycle power plant is formed.
11. The high-grade fuel carrying and nuclear energy combined cycle power plant is formed by adding a steam expansion speed increaser to replace a steam turbine, adding a diffuser pipe to replace a booster pump in any one of the high-grade fuel carrying and nuclear energy combined cycle power plants in the 1-9 th aspect.
12. The high-grade fuel carrying and nuclear energy combined cycle power plant is characterized in that a heat source medium channel is additionally arranged in the high-grade fuel carrying and nuclear energy combined cycle power plant in any one of the 1-11 th, and the heat source medium channel is communicated with the outside to form the high-grade fuel carrying and nuclear energy combined cycle power plant.
Description of the drawings:
FIG. 1 is a schematic thermodynamic system diagram of a high-grade fuel carrying co-nuclear combined cycle power plant according to the present invention.
FIG. 2 is a schematic thermodynamic system diagram of a high-grade fuel carrying co-nuclear combined cycle power plant according to the present invention.
FIG. 3 is a schematic thermodynamic system diagram of a high-grade fuel carrying co-nuclear combined cycle power plant according to the present invention.
FIG. 4 is a schematic thermodynamic system diagram of a high-grade fuel carrying co-nuclear combined cycle power plant according to the present invention.
FIG. 5 is a schematic thermodynamic system diagram of a high-grade fuel carrying co-nuclear combined cycle power plant according to the present invention.
FIG. 6 is a schematic thermodynamic system diagram of a high-grade fuel carrying co-nuclear combined cycle power plant according to the present invention.
FIG. 7 is a schematic thermodynamic system diagram of a high-grade fuel carrying co-nuclear combined cycle power plant according to the present invention.
FIG. 8 is a schematic thermodynamic system diagram of a high-grade fuel carrying co-nuclear combined cycle power plant according to the present invention.
FIG. 9 is a schematic thermodynamic system diagram of a 9 th principle of a high-grade fuel-carrying and nuclear combined cycle power plant according to the present invention.
FIG. 10 is a schematic diagram of a 10 th principle thermodynamic system of a high-grade fuel carrying co-nuclear combined cycle power plant in accordance with the present invention.
FIG. 11 is a schematic thermodynamic system diagram of a high-grade fuel carrying co-nuclear combined cycle power plant 11 according to the present invention.
FIG. 12 is a schematic diagram of a 12 th principle thermodynamic system of a high-grade fuel carrying co-nuclear combined cycle power plant according to the present invention.
In the figure, a 1-turbine, a 2-booster pump, a 3-high temperature heat exchanger, a 4-condenser, a 5-compressor, a 6-expander, a 7-nuclear reactor (nuclear heating system), an 8-heating furnace, a 9-heat source regenerator, a 10-high temperature regenerator, a 11-second booster pump, a 12-low temperature regenerator, a 13-steam expansion speed increaser and a 14-diffuser pipe are shown; a-double-energy compressor and B-expansion speed increaser.
Statement regarding high grade fuel and nuclear reactor:
(1) High grade fuel: high grade fuel refers to fuel in which the heat source temperature formed by the combustion products is relatively high.
In contrast, the low-grade fuel, i.e., low-grade fuel, refers to a 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 the like, particularly for fuels which need to provide driving high-temperature load for the circulating working medium through indirect means, the grade of the fuels is divided by the temperature which can be achieved by the circulating working medium under the prior technical conditions, namely, the higher-grade fuels are the circulating working medium/working medium, and the lower-grade fuels are the circulating working medium/working medium.
(3) In the present invention, the temperature that the combustion air can reach through the nuclear reactor is lower than the temperature of the high-grade fuel gas in the heating furnace 8, and the nuclear fuel belongs to low-grade fuel (energy source).
(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/working medium flowing through the nuclear reactor with the heat energy released by the 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 through a heat exchanger to the circulating medium/working medium flowing through the nuclear reactor.
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 high-grade fuel carrying nuclear combined cycle power plant shown in fig. 1 is realized by the following steps:
(1) Structurally, it mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace and a heat source regenerator; the outside is provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the nuclear reactor 7, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace 8, and 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 5 is provided with a circulating working medium channel which is communicated with the expander 6 through the heating furnace 8, the expander 6 is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger 3, and the high-temperature heat exchanger 3 is also provided with a circulating working medium channel which is communicated with the compressor 5; the condenser 4 is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger 3 through the booster pump 2, the high-temperature heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.
(2) In the flow, external air flows through the heat source regenerator 9 and the nuclear reactor 7 to absorb heat gradually and raise temperature, then enters the heating furnace 8, external high-grade fuel enters the heating furnace 8, fuel and air are mixed in the heating furnace 8 and burnt into high-temperature fuel gas, the high-temperature fuel gas releases heat, and after flowing through a circulating working medium of the heating furnace 8, the high-temperature fuel gas continuously releases heat and lowers temperature, and then is discharged outwards; the circulating working medium discharged by the compressor 5 absorbs heat and heats up through the heating furnace 8, reduces pressure and works through the expander 6, releases heat and cools down through the high-temperature heat exchanger 3, and then enters the compressor 5 to raise pressure and heat; the condensate of the condenser 4 is boosted by the booster pump 2, absorbs heat, warms up, vaporizes and superheats by the high-temperature heat exchanger 3, the steam discharged by the high-temperature heat exchanger 3 is subjected to pressure reduction and work by the steam turbine 1, and the low-pressure steam discharged by the steam turbine 1 enters the condenser 4 to release heat and condense; the nuclear fuel provides driving heat load through a nuclear reactor 7, the high-grade fuel provides driving heat load through a heating furnace 8, a cooling medium takes away low-temperature heat load through a condenser 4, and air and fuel gas take away a little low-temperature heat load through an inlet and outlet flow; the work output by the turbine 1 and the expander 6 is provided for the compressor 5 and the external power, or the work output by the turbine 1 and the expander 6 is provided for the booster pump 2, the compressor 5 and the external power, so that the high-grade fuel carrying the same nuclear energy combined cycle power device is formed.
The high-grade fuel carrying nuclear combined cycle power plant shown in fig. 2 is realized by the following steps:
(1) Structurally, the device mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the nuclear reactor 7, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace 8, and 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 5 is provided with a circulating medium channel which is communicated with the expander 6 through the high-temperature heat regenerator 10 and the heating furnace 8, the expander 6 is also provided with a circulating medium channel which is communicated with the high-temperature heat exchanger 3 through the high-temperature heat regenerator 10, and the high-temperature heat exchanger 3 is also provided with a circulating medium channel which is communicated with the compressor 5; the condenser 4 is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger 3 through the booster pump 2, the high-temperature heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.
(2) In the flow, compared with the high-grade fuel carrying the same nuclear energy combined cycle power plant shown in fig. 1, the difference is that: the circulating working medium discharged by the compressor 5 gradually absorbs heat and heats up through the high-temperature heat regenerator 10 and the heating furnace 8, reduces pressure and works through the expansion machine 6, gradually releases heat and reduces temperature through the high-temperature heat regenerator 10 and the high-temperature heat exchanger 3, and then enters the compressor 5 to raise pressure and heat up to form the high-grade fuel carrying same nuclear energy combined cycle power device.
The high-grade fuel carrying nuclear power combined cycle power plant shown in fig. 3 is realized by the following steps:
(1) Structurally, the device mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the nuclear reactor 7, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace 8, and 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 5 is provided with a circulating working medium channel which is communicated with the expander 6 through the heating furnace 8, the expander 6 is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger 3 through the high-temperature heat regenerator 10, and the high-temperature heat exchanger 3 is also provided with a circulating working medium channel which is communicated with the compressor 5, and then the compressor 5 is provided with a circulating working medium channel which is communicated with the compressor through the high-temperature heat regenerator 10; the condenser 4 is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger 3 through the booster pump 2, the high-temperature heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.
(2) In the flow, compared with the high-grade fuel carrying the same nuclear energy combined cycle power plant shown in fig. 1, the difference is that: the circulating working medium discharged by the compressor 5 absorbs heat and heats up through the heating furnace 8, reduces pressure and works through the expansion machine 6, releases heat and reduces temperature gradually through the high-temperature regenerator 10 and the high-temperature heat exchanger 3, and is supplied to the compressor 5; the circulating working medium enters the compressor 5 to be boosted and heated, flows through the high-temperature heat regenerator 10 to absorb heat and heat to a certain extent, and then enters the compressor 5 to be boosted and heated continuously, so that the high-grade fuel carrying nuclear energy combined cycle power plant is formed.
The high-grade fuel carrying nuclear power combined cycle power plant shown in fig. 4 is realized by the following steps:
(1) Structurally, the device mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the nuclear reactor 7, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace 8, and 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 5 is provided with a circulating medium channel which is communicated with the expander 6 through the high-temperature heat regenerator 10 and the heating furnace 8, the expander 6 is also provided with a circulating medium channel which is communicated with the compressor through the high-temperature heat regenerator 10, the expander 6 is also provided with a circulating medium channel which is communicated with the high-temperature heat exchanger 3, and the high-temperature heat exchanger 3 is also provided with a circulating medium channel which is communicated with the compressor 5; the condenser 4 is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger 3 through the booster pump 2, the high-temperature heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.
(2) In the flow, compared with the high-grade fuel carrying the same nuclear energy combined cycle power plant shown in fig. 1, the difference is that: the circulating working medium discharged by the compressor 5 flows through the high-temperature heat regenerator 10 and the heating furnace 8 to absorb heat gradually and raise temperature, and then is supplied to the expander 6; the circulating working medium enters the expander 6 to perform decompression and work, flows through the high-temperature regenerator 10 to release heat and cool after reaching a certain degree, and then enters the expander 6 to continue decompression and work; the circulating working medium discharged by the expander 6 flows through the high-temperature heat exchanger 3 to release heat and cool, and then enters the compressor 5 to raise the pressure and temperature, so that the high-grade fuel carrying the same nuclear energy combined cycle power device is formed.
The high-grade fuel carrying nuclear power combined cycle power plant shown in fig. 5 is realized by the following steps:
(1) Structurally, the device mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the nuclear reactor 7, the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace 8, and 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 5 is provided with a circulating working medium channel which is communicated with the expander 6 through the heating furnace 8, the expander 6 is also provided with a circulating working medium channel which is communicated with the expander through the high-temperature heat regenerator 10, the expander 6 is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger 3, the high-temperature heat exchanger 3 is also provided with a circulating working medium channel which is communicated with the compressor 5, and the compressor 5 is provided with a circulating working medium channel which is communicated with the expander through the high-temperature heat regenerator 10; the condenser 4 is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger 3 through the booster pump 2, the high-temperature heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.
(2) In the flow, compared with the high-grade fuel carrying the same nuclear energy combined cycle power plant shown in fig. 1, the difference is that: the circulating working medium discharged by the compressor 5 flows through the heating furnace 8 to absorb heat and raise temperature, and then is provided for the expander 6; the circulating working medium enters the expander 6 to perform decompression and work, flows through the high-temperature regenerator 10 to release heat and cool after reaching a certain degree, and then enters the expander 6 to continue decompression and work; the circulating working medium discharged by the expander 6 flows through the high-temperature heat exchanger 3 to release heat and cool, enters the compressor 5 to be boosted and warmed to a certain degree, flows through the high-temperature heat regenerator 10 to absorb heat and warm, and then enters the compressor 5 to be boosted and warmed continuously, so that the high-grade fuel carrying nuclear energy combined cycle power device is formed.
The high-grade fuel carrying nuclear power combined cycle power plant shown in fig. 6 is realized by the following steps:
(1) Structurally, in the high-grade fuel-carrying and homonuclear combined cycle power plant shown in fig. 1, a dual-energy compressor A is added to replace a compressor 5, and an expansion speed increaser B is added to replace an expander 6.
(2) In the flow, compared with the high-grade fuel carrying the same nuclear energy combined cycle power plant shown in fig. 1, the difference is that: the circulating working medium discharged by the dual-energy compressor A absorbs heat and heats up through the heating furnace 8, reduces pressure and works and increases speed through the expansion speed increaser B, releases heat and reduces temperature through the high-temperature heat exchanger 3, and then enters the compressor 5 to raise pressure and heat and reduce speed to form the high-grade fuel carrying same nuclear energy combined cycle power device.
The high-grade fuel carrying nuclear power combined cycle power plant shown in fig. 7 is realized by the following steps:
(1) In the high-grade fuel-carrying nuclear energy combined cycle power plant shown in fig. 1, the communication between a circulating working medium channel of a high-temperature heat exchanger 3 and a compressor 5 is adjusted to be that a working medium channel of the high-temperature heat exchanger 3 is communicated with the outside, and a working medium channel is communicated with the outside and the compressor 5.
(2) In the flow, compared with the high-grade fuel carrying the same nuclear energy combined cycle power plant shown in fig. 1, the difference is that: the external working medium is boosted and heated through the compressor 5, absorbs heat and heats through the heating furnace 8, reduces pressure and works through the expander 6, releases heat and reduces temperature through the high-temperature heat exchanger 3, and is discharged outwards to form the high-grade fuel carrying the same nuclear energy combined cycle power device.
The high-grade fuel carrying nuclear power combined cycle power plant shown in fig. 8 is realized by the following steps:
(1) In the high-grade fuel-carrying and nuclear-energy combined cycle power plant shown in fig. 1, the communication between the high-temperature heat exchanger 3 and the steam turbine 1 is adjusted to be such that the high-temperature heat exchanger 3 has a steam passage and the steam turbine 1 is communicated with the steam turbine 7 through the nuclear reactor 7.
(2) In the flow, compared with the high-grade fuel carrying the same nuclear energy combined cycle power plant shown in fig. 1, the difference is that: the condensate of the condenser 4 is boosted by the booster pump 2, is heated and vaporized by the high-temperature heat exchanger 3, is heated by the nuclear reactor 7, is reduced in pressure and acts by the steam turbine 1, and then enters the condenser 4 to release heat and condense to form the high-grade fuel carrying the same nuclear energy combined cycle power plant.
The high-grade fuel carrying nuclear power combined cycle power plant shown in fig. 9 is realized by the following steps:
(1) In the high-grade fuel-carrying and nuclear-energy combined cycle power plant shown in fig. 1, the communication between the high-temperature heat exchanger 3 and the steam turbine 1 is adjusted to be that after the high-temperature heat exchanger 3 is communicated with the steam turbine 1 through the steam channel, the steam turbine 1 is communicated with the high-temperature heat exchanger through the nuclear reactor 7 through the steam channel.
(2) In the flow, compared with the high-grade fuel carrying the same nuclear energy combined cycle power plant shown in fig. 1, the difference is that: the condensate of the condenser 4 is boosted by the booster pump 2, is subjected to heat absorption, temperature rise and vaporization by the high-temperature heat exchanger 3, is subjected to pressure reduction and work to a certain extent by the steam turbine 1, is subjected to heat absorption, temperature rise by the nuclear reactor 7, and is subjected to continuous pressure reduction and work by the steam turbine 1; the low-pressure steam discharged by the steam turbine 1 enters a condenser 4 to release heat and condense, so that a high-grade fuel carrying the same nuclear energy combined cycle power plant is formed.
The high-grade fuel carrying nuclear power combined cycle power plant shown in fig. 10 is realized by the following steps:
(1) In the structure, in the high-grade fuel combined cycle power plant with the same nuclear energy shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, a condensate pipe arranged on a condenser 4 is communicated with the booster pump 2, the condensate pipe arranged on the condenser 4 is communicated with the low-temperature heat regenerator 12 through a second booster pump 11, a steam turbine 1 is provided with a steam extraction channel and is communicated with the low-temperature heat regenerator 12, and the low-temperature heat regenerator 12 is further communicated with the booster pump 2 through the condensate pipe.
(2) In the flow, compared with the high-grade fuel carrying the same nuclear energy combined cycle power plant shown in fig. 1, the difference is that: the condensate discharged by the condenser 4 flows through the second booster pump 11 to be boosted and then enters the low-temperature regenerator 12 to be mixed with the extracted steam from the steam turbine 1, absorbs heat and heats up, and the extracted steam is released to form condensate; condensate of the low-temperature heat regenerator 12 is boosted by the booster pump 2, is subjected to heat absorption, temperature rise, vaporization and overheating by the high-temperature heat exchanger 3, and then enters the steam turbine 1 to be subjected to pressure reduction and work; the steam is divided into two paths after being depressurized and worked to a certain extent in the steam turbine 1, wherein the first path is provided for the low-temperature heat regenerator 12, and the second path is used for continuously depressurizing and working and then enters the condenser 4 for heat release and condensation, so that the high-grade fuel carrying the same nuclear energy combined cycle power device is formed.
The high-grade fuel carrying nuclear power combined cycle power plant shown in fig. 11 is realized by the following steps:
(1) Structurally, in the high-grade fuel-carrying and nuclear-energy combined cycle power plant shown in fig. 1, a steam expansion speed increaser 13 is added to replace a steam turbine 1, and a diffuser pipe 14 is added to replace a booster pump 2.
(2) In the flow, compared with the high-grade fuel carrying the same nuclear energy combined cycle power plant shown in fig. 1, the difference is that: the condensate of the condenser 4 is subjected to speed reduction and pressure increase through a diffuser pipe 14, is subjected to heat absorption, temperature rise, vaporization and overheating through a high-temperature heat exchanger 3, is subjected to pressure reduction, work and speed increase through a steam expansion speed increaser 13, and then enters the condenser 4 to release heat and be condensed; work output by the expander 6 and the steam expansion speed increaser 13 is provided for the compressor 5 and external power to form the high-grade fuel carrying the same nuclear energy combined cycle power plant.
The high-grade fuel carrying nuclear power combined cycle power plant shown in fig. 12 is realized by the following steps:
in the high-grade fuel carrying nuclear energy combined cycle power plant shown in fig. 1, a heat source medium channel is additionally arranged on a high-temperature heat exchanger 3 and is communicated with the outside; the circulating working medium from the expander 6 and the heat source medium from the outside jointly provide heat load for condensate entering the high-temperature heat exchanger 3, so that the high-grade fuel carrying nuclear energy combined cycle power plant is formed.
The high-grade fuel carrying same nuclear energy combined cycle power device provided by the invention has the following effects and advantages:
(1) The nuclear energy can complete the temperature rise of air required by the fuel combustion of the heating furnace 8, and the irreversible loss of temperature difference in the high-grade fuel combustion process is effectively reduced.
(2) The high-temperature driving heat load formed by the high-grade fuel and nuclear energy realizes graded utilization, obviously reduces irreversible loss of temperature difference and effectively improves heat change work efficiency.
(3) The high-grade fuel carries the same nuclear energy to jointly provide driving heat load for the combined cycle, and the nuclear energy plays a role of the high-grade fuel; the utilization value of nuclear energy converted into mechanical energy is obviously improved, and the cost of a nuclear power system is relatively reduced.
(4) The range of driving energy used by the gas-steam combined cycle power plant is effectively expanded, and the energy consumption cost is obviously reduced.
(5) The energy utilization value is obviously improved, the emission of greenhouse gases is reduced, the emission of pollutants is reduced, and the energy conservation and emission reduction benefits are outstanding.
(6) Simple structure, reasonable flow, and provides a plurality of specific technical schemes, which is beneficial to reducing the manufacturing cost of the device and expanding the application range of the technology.
Claims (12)
1. The high-grade fuel carrying the same nuclear energy combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace and a heat source regenerator; the outside is provided with an air channel which is communicated with a heating furnace (8) through a heat source regenerator (9) and a nuclear reactor (7), the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace (8), and 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 (5) is provided with a circulating working medium channel which is communicated with the expander (6) through the heating furnace (8), the expander (6) is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger (3), and the high-temperature heat exchanger (3) is also provided with a circulating working medium channel which is communicated with the compressor (5); the condenser (4) is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger (3) through the booster pump (2), the high-temperature heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the high-grade fuel carrying nuclear energy combined cycle power device.
2. The high-grade fuel carrying the same nuclear energy combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with a heating furnace (8) through a heat source regenerator (9) and a nuclear reactor (7), the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace (8), and 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 (5) is provided with a circulating working medium channel which is communicated with the expander (6) through the high-temperature heat regenerator (10) and the heating furnace (8), the expander (6) is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger (3) through the high-temperature heat regenerator (10), and the high-temperature heat exchanger (3) is also provided with a circulating working medium channel which is communicated with the compressor (5); the condenser (4) is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger (3) through the booster pump (2), the high-temperature heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the high-grade fuel carrying nuclear energy combined cycle power device.
3. The high-grade fuel carrying the same nuclear energy combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with a heating furnace (8) through a heat source regenerator (9) and a nuclear reactor (7), the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace (8), and 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 (5) is provided with a circulating working medium channel which is communicated with the expander (6) through the heating furnace (8), the expander (6) is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger (3) through the high-temperature heat regenerator (10), the high-temperature heat exchanger (3) is also provided with a circulating working medium channel which is communicated with the compressor (5), and the compressor (5) is also provided with a circulating working medium channel which is communicated with the compressor through the high-temperature heat regenerator (10); the condenser (4) is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger (3) through the booster pump (2), the high-temperature heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the high-grade fuel carrying nuclear energy combined cycle power device.
4. The high-grade fuel carrying the same nuclear energy combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with a heating furnace (8) through a heat source regenerator (9) and a nuclear reactor (7), the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace (8), and 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 (5) is provided with a circulating working medium channel which is communicated with the expander (6) through the high-temperature heat regenerator (10) and the heating furnace (8), the expander (6) is also provided with a circulating working medium channel which is communicated with the compressor (5) through the high-temperature heat regenerator (10), the expander (6) is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger (3), and the high-temperature heat exchanger (3) is also provided with a circulating working medium channel which is communicated with the compressor (5); the condenser (4) is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger (3) through the booster pump (2), the high-temperature heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the high-grade fuel carrying nuclear energy combined cycle power device.
5. The high-grade fuel carrying the same nuclear energy combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, an expander, a nuclear reactor, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with an air channel which is communicated with a heating furnace (8) through a heat source regenerator (9) and a nuclear reactor (7), the outside is also provided with a high-grade fuel channel which is communicated with the heating furnace (8), and 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 (5) is provided with a circulating working medium channel which is communicated with the expander (6) through the heating furnace (8), the expander (6) is also provided with a circulating working medium channel which is communicated with the compressor through the high-temperature heat regenerator (10), the expander (6) is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger (3), and the high-temperature heat exchanger (3) is also provided with a circulating working medium channel which is communicated with the compressor (5) after the compressor (5) is also provided with a circulating working medium channel which is communicated with the compressor through the high-temperature heat regenerator (10); the condenser (4) is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger (3) through the booster pump (2), the high-temperature heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the high-grade fuel carrying nuclear energy combined cycle power device.
6. The high-grade fuel carrying and nuclear energy combined cycle power plant is characterized in that a dual-energy compressor (A) is added to replace a compressor (5), an expansion speed increaser (B) is added to replace an expansion machine (6) in any one of the high-grade fuel carrying and nuclear energy combined cycle power plants in claims 1-5, so that the high-grade fuel carrying and nuclear energy combined cycle power plant is formed.
7. In the high-grade fuel-carrying and nuclear-energy combined cycle power plant, the high-grade fuel-carrying and nuclear-energy combined cycle power plant is formed by adjusting the communication of a circulating working medium channel of a high-temperature heat exchanger (3) and a compressor (5) to the communication of a working medium channel of the high-temperature heat exchanger (3) and the outside and the communication of the working medium channel of the outside and the compressor (5).
8. In the high-grade fuel carrying and nuclear energy combined cycle power plant, the high-grade fuel carrying and nuclear energy combined cycle power plant is formed by adjusting the communication of a steam channel of a high-temperature heat exchanger (3) and a steam turbine (1) to be that the communication of the steam channel of the high-temperature heat exchanger (3) and the steam turbine (1) through a nuclear reactor (7).
9. In the high-grade fuel-carrying and nuclear-energy combined cycle power plant, the high-grade fuel-carrying and nuclear-energy combined cycle power plant is formed by adjusting the communication between a steam channel of a high-temperature heat exchanger (3) and a steam turbine (1) to be that the communication between the steam channel of the high-temperature heat exchanger (3) and the steam turbine (1) is carried, and then the communication between the steam channel of the steam turbine (1) and the high-grade fuel-carrying and nuclear-energy combined cycle power plant through a nuclear reactor (7).
10. The high-grade fuel carrying and nuclear energy combined cycle power plant is characterized in that a second booster pump and a low-temperature heat regenerator are added in any one of the high-grade fuel carrying and nuclear energy combined cycle power plant in claims 1-9, a condensate pipe line of a condenser (4) is communicated with the booster pump (2) and is adjusted to be communicated with the low-temperature heat regenerator (12) through the second booster pump (11), a steam turbine (1) is provided with a steam extraction channel which is communicated with the low-temperature heat regenerator (12), and a condensate pipe line of the low-temperature heat regenerator (12) is communicated with the booster pump (2), so that the high-grade fuel carrying and nuclear energy combined cycle power plant is formed.
11. The high-grade fuel carrying and nuclear energy combined cycle power plant is characterized in that a steam expansion speed increaser (13) is added to replace a steam turbine (1), a diffuser pipe (14) is added to replace a booster pump (2) in any one of the high-grade fuel carrying and nuclear energy combined cycle power plants in claims 1-9, so that the high-grade fuel carrying and nuclear energy combined cycle power plant is formed.
12. The high-grade fuel carrying and nuclear energy combined cycle power plant is characterized in that a heat source medium channel is additionally arranged on a high-temperature heat exchanger (3) and communicated with the outside to form the high-grade fuel carrying and nuclear energy combined cycle power plant in any one of claims 1-11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210796773 | 2022-06-25 |
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| CN202310796387.5A Pending CN117759431A (en) | 2022-06-25 | 2023-06-23 | High-grade fuel carrying same nuclear energy combined cycle power device |
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