CN117759367A - Fuel carrying same nuclear energy single-working-medium combined cycle steam power device - Google Patents
Fuel carrying same nuclear energy single-working-medium combined cycle steam power device Download PDFInfo
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- CN117759367A CN117759367A CN202311871549.3A CN202311871549A CN117759367A CN 117759367 A CN117759367 A CN 117759367A CN 202311871549 A CN202311871549 A CN 202311871549A CN 117759367 A CN117759367 A CN 117759367A
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- 239000000446 fuel Substances 0.000 title claims abstract description 89
- 238000010438 heat treatment Methods 0.000 claims abstract description 77
- 239000002737 fuel gas Substances 0.000 claims abstract description 17
- 239000002826 coolant Substances 0.000 claims abstract description 16
- 238000009792 diffusion process Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 5
- 238000004891 communication Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000002427 irreversible effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000003758 nuclear fuel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Abstract
The invention provides a fuel carrying homonuclear single-working-medium combined cycle steam power device, and belongs to the technical field of thermodynamics and thermal dynamics. The outside is provided with a fuel channel which is communicated with a heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the compressor is provided with a first steam channel which is communicated with the evaporator through the regenerator and a second expander, the compressor is also provided with a second steam channel which is communicated with a nuclear reactor, the condenser is communicated with the nuclear reactor through a booster pump and the evaporator, the nuclear reactor is also provided with a steam channel which is communicated with the evaporator through the heating furnace, the expander and the regenerator, and the evaporator is also provided with a low-pressure steam channel which is respectively communicated with the compressor and 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 fuel carrying same-nuclear-energy single-working-medium combined cycle steam power device.
Description
Technical field:
the invention belongs to the technical field of thermodynamics and thermal dynamics.
The background technology is as follows:
the fuel and nuclear energy can realize thermal work; different system devices are constructed by adopting the same or different thermal power principles, and corresponding construction cost is paid, so that the conversion of fuel or nuclear energy into mechanical energy is realized; obviously, it is of positive significance to try to reduce the number of thermal power devices.
Limited by one or more factors such as working principle, working medium property, material property, equipment manufacturing level and the like, the irreversible temperature difference loss exists in the fuel combustion process, and the irreversible temperature difference loss exists in the nuclear energy application process; under the traditional technical conditions, the higher the temperature of a heat source formed by fuel or nuclear energy is, the larger the irreversible loss of the temperature difference in the heat source forming or application process is.
In order to increase the thermal efficiency, it is necessary to bring the circulating medium to as high a temperature as possible after the high-temperature load is obtained; however, at this time, the temperature of the circulating working medium discharged by the high-temperature expander is increased, the heat discharge is increased, and the heat transfer temperature difference loss in the thermodynamic system is increased, which has an adverse effect on the improvement of the heat-variable work efficiency.
The invention provides a fuel carrying homonuclear energy single-working-medium combined cycle steam power device which has reasonable thermodynamic perfection and high cost performance and is reasonable in flow path and simple in structure, and the irreversible loss of systematic temperature difference of a thermal power device is obviously reduced by simply, actively, safely and efficiently utilizing energy to obtain power.
The invention comprises the following steps:
the invention mainly aims to provide a fuel carrying and nuclear energy single-working-medium combined cycle steam power device, and the specific invention is described as follows:
1. the fuel carrying same nuclear energy 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 nuclear reactor, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, a compressor is provided with a first steam channel which is communicated with a second expander through the regenerator, the second expander is also provided with a low-pressure steam channel which is communicated with an evaporator, the compressor is also provided with a second steam channel which is communicated with a nuclear reactor, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with the nuclear reactor, the nuclear reactor is also provided with a steam channel which is communicated with the expander through the heating furnace, the expander is also provided with a low-pressure steam channel which is communicated with the evaporator through the regenerator, and the evaporator 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 fuel carrying same-nuclear-energy 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 fuel carrying same nuclear energy 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 nuclear reactor, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the compressor is provided with a first steam channel which is communicated with a second expander through the regenerator, the second expander is also provided with a low-pressure steam channel which is communicated with an evaporator, the compressor is also provided with a second steam channel which is communicated with a nuclear reactor, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with the nuclear reactor, the nuclear reactor is also provided with a steam channel which is communicated with the expander through the heating furnace, the expander is also provided with a low-pressure steam channel which is communicated with the evaporator after the heat regenerator is communicated with the expander, and the evaporator is also provided with 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 fuel carrying same-nuclear-energy 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 fuel carrying same nuclear energy 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 nuclear reactor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the compressor is provided with a first steam channel which is communicated with a second expander through the regenerator, the second expander is also provided with a low-pressure steam channel which is communicated with an evaporator, the compressor is also provided with a second steam channel which is communicated with a nuclear reactor through the second regenerator, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the evaporator is further provided with a steam channel which is communicated with the nuclear reactor through the second regenerator, the nuclear reactor is also provided with a steam channel which is communicated with the expander through the heating furnace, the expander is also provided with a low-pressure steam channel which is divided into two paths, namely a first path which is communicated with the compressor and a second path which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a fuel carrying same-nuclear-energy 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 fuel carrying same nuclear energy 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 nuclear reactor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a 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 nuclear reactor through the second regenerator, the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, the evaporator is further provided with a steam channel which is communicated with the nuclear reactor through the second regenerator, the nuclear reactor is also provided with a steam channel which is communicated with the expander through the heating furnace, the expander is further provided with a low-pressure steam channel which is communicated with the evaporator through the regenerator after the second regenerator is communicated with the expander, and the evaporator is further provided with the low-pressure steam channel which is divided into two paths, namely the first path which is communicated with the compressor and the second path which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a fuel carrying same-nuclear-energy 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 fuel carrying and nuclear energy single-working-medium combined cycle steam power device is characterized in that a second booster pump and a low-temperature heat regenerator are added in any one of the fuel carrying and nuclear energy single-working-medium combined cycle steam power devices in the 1 st to 4 th, a condenser condensate pipe is communicated with the booster pump and is adjusted to be communicated with the low-temperature heat regenerator through the second booster pump, a steam extraction channel is additionally arranged in the compressor and is communicated with the low-temperature heat regenerator, and the low-temperature heat regenerator is further communicated with the booster pump through the condensate pipe, so that the fuel carrying and nuclear energy single-working-medium combined cycle steam power device is formed.
6. The fuel carrying and nuclear energy single-working-medium combined cycle steam power device is characterized in that in any one of the fuel carrying and nuclear energy single-working-medium combined cycle steam power devices in the 1 st, the 3 rd and the 4 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 communication between the condenser and the condenser through a condensate pipe is adjusted to be that the condensate pipe is 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 diffusion pipe, and the fuel carrying and nuclear energy single-working-medium combined cycle steam power device is formed.
7. The fuel-carrying and homonuclear single-working-medium combined cycle steam power device is characterized in that a second evaporator and a diffuser pipe are added in the fuel-carrying and homonuclear 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 to be adjusted to be communicated with the low-pressure steam channel of the expander through the evaporator and communicated with the second evaporator, the low-pressure steam channel of the second expander is communicated with the evaporator to be 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 to be respectively communicated with the low-pressure steam channel of the second evaporator and the compressor, the condenser condensate pipe is communicated with the condenser through the booster pump and the evaporator to be 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, and the fuel-carrying and homonuclear single-working-cycle steam power device is formed.
8. The fuel-carrying and homonuclear single-working-medium combined cycle steam power plant is characterized in that in any one of the fuel-carrying and homonuclear single-working-medium combined cycle steam power plants in the 1 st to the 7 th, an expansion speed increaser is added and replaces an expansion machine, a second expansion speed increaser is added and replaces a second expansion machine, a dual-energy compressor is added and replaces a compressor, a newly added diffuser pipe is added and replaces a booster pump, and the fuel-carrying and homonuclear single-working-medium combined cycle steam power plant is formed.
Description of the drawings:
FIG. 1 is a schematic thermodynamic system diagram of a fuel-carrying, homonuclear, single-working-medium combined cycle steam power plant according to the present invention.
FIG. 2 is a schematic thermodynamic system diagram of a fuel-carrying homonuclear single-working-medium combined cycle steam power plant according to the present invention.
FIG. 3 is a schematic thermodynamic system diagram of a fuel-carrying homonuclear single-working-medium combined cycle steam power plant according to the invention.
FIG. 4 is a schematic thermodynamic system diagram of a fuel-carrying, homonuclear, single-working-medium combined cycle steam power plant according to the present invention.
FIG. 5 is a schematic thermodynamic system diagram of a fuel carrying homonuclear single-working-medium combined cycle steam power plant according to the present invention.
FIG. 6 is a schematic thermodynamic system diagram of a fuel carrying homonuclear single-working-medium combined cycle steam power plant according to the present invention.
FIG. 7 is a schematic thermodynamic system diagram of a fuel carrying homonuclear single-working-medium combined cycle steam power plant according to the 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-nuclear reactor, a 9-heating furnace, a 10-heat source heat exchanger, an 11-second regenerator, a 12-second booster pump, a 13-low temperature regenerator, a 14-second evaporator and a 15-diffuser pipe are arranged; a-expansion speed increaser, B-second expansion speed increaser, C-dual-energy compressor and D-newly added diffuser.
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 is directly supplied to the working medium flowing through the nuclear reactor by 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 to the working medium 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 8.
The specific embodiment is as follows:
it is to be noted that the description of the structure and the flow is not repeated if necessary; obvious procedures are not described. The invention is described in detail below with reference to the drawings and examples.
The fuel carrying homonuclear single-working-medium combined cycle steam power plant shown in fig. 1 is realized by the following steps:
(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a nuclear reactor, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 9, the outside is also provided with an air channel which is communicated with the heating furnace 9 through a heat source regenerator 10, the heating furnace 9 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 10, 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 nuclear reactor 8, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through the booster pump 4, then the evaporator 7 is further provided with a steam channel which is communicated with the nuclear reactor 8, the nuclear reactor 8 is also provided with a steam channel which is communicated with the expander 1 through the heating furnace 9, the expander 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 through the regenerator 5, and the evaporator 7 is also provided with a low-pressure steam channel which is divided into two paths, namely a first path which is communicated with the compressor 3 and a second path which is communicated with the condenser 6; the condenser 6 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 9, external air enters the heating furnace 9 after absorbing heat and raising temperature through the heat source regenerator 10, the fuel and the air are mixed in the heating furnace 9 and combusted to generate high-temperature fuel gas, the fuel gas releases heat on steam flowing through the heating furnace 9, and then the fuel gas releases heat and lowers the temperature through the heat source regenerator 10 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 nuclear reactor 8 after the second path is continuously boosted and heated; condensate discharged by the condenser 6 is boosted by the booster pump 4, is subjected to heat absorption, temperature rise and vaporization by the evaporator 7, and then enters the nuclear reactor 8 to absorb heat and temperature rise; steam discharged by the nuclear reactor 8 absorbs heat and rises temperature through the heating furnace 9, is subjected to depressurization and work through the expander 1, is subjected to heat release and cooling through the regenerator 5, and is then provided for 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 nuclear fuel provides driving heat load through a nuclear reactor 8, the fuel provides driving heat load through a heating furnace 9, a cooling medium takes away low-temperature heat load through a condenser 6, and air and fuel gas take away discharge heat load through an in-out heating furnace 10; the work output by the expander 1 and the second expander 2 is provided for the compressor 3 and external power, or the work output by the expander 1 and the second expander 2 is provided for the compressor 3, the booster pump 4 and external power, so that the fuel carrying same-nuclear energy single-working-medium combined cycle steam power device is formed.
The fuel carrying homonuclear single-working-medium combined cycle steam power plant shown in fig. 2 is realized by the following steps:
(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a nuclear reactor, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 9, the outside is also provided with an air channel which is communicated with the heating furnace 9 through a heat source regenerator 10, the heating furnace 9 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 10, the compressor 3 is provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a nuclear reactor 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 nuclear reactor 8, the nuclear reactor 8 is also provided with a steam channel which is communicated with the expander 1 through the heating furnace 9, then 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 flow, compared with the fuel carrying homonuclear single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged by the heating furnace 9 enters the expander 1 to perform decompression and work, flows through the regenerator 5 to release heat and cool after reaching a certain degree, enters the expander 1 to continue decompression and work, and then is provided for the evaporator 7 to form the fuel carrying same-nuclear single-working-medium combined cycle steam power device.
The fuel carrying homonuclear single-working-medium combined cycle steam power plant shown in fig. 3 is realized by the following steps:
(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a nuclear reactor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 9, the outside is also provided with an air channel which is communicated with the heating furnace 9 through a heat source regenerator 10, the heating furnace 9 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 10, the compressor 3 is provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a nuclear reactor 8 through a second regenerator 11, 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 nuclear reactor 8 through the second regenerator 11, the nuclear reactor 8 is also provided with a steam channel which is communicated with an expander 1 through the heating furnace 9, the expander 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 through the second regenerator 11 and 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 flow, compared with the fuel carrying homonuclear 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 is passed through the second regenerator 11 to absorb heat and raise temperature, and then supplied to the nuclear reactor 8; the low-pressure steam discharged by the expander 1 flows through the second heat regenerator 11, 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 fuel carrying same nuclear energy single-working-medium combined cycle steam power device is formed.
The fuel carrying homonuclear single-working-medium combined cycle steam power plant shown in fig. 4 is realized by the following steps:
(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a nuclear reactor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace 9, the outside is also provided with an air channel which is communicated with the heating furnace 9 through a heat source regenerator 10, the heating furnace 9 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 10, the compressor 3 is provided with a first steam channel which is communicated with a second expander 2 through a regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with an evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with a nuclear reactor 8 through a second regenerator 11, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through a booster pump 4, the evaporator 7 is further provided with a steam channel which is communicated with the nuclear reactor 8 through the second regenerator 11, the nuclear reactor 8 is also provided with a steam channel which is communicated with an expander 1 through the heating furnace 9, the expander 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 through the regenerator 5 after the second regenerator 11 is communicated with itself, and the evaporator 7 is also provided with a low-pressure steam channel which is divided into two paths-a first path which is communicated with the compressor 3 and a second path which is communicated with the condenser 6; the condenser 6 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 flow, compared with the fuel carrying homonuclear 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 is passed through the second regenerator 11 to absorb heat and raise temperature, and then supplied to the nuclear reactor 8; the steam discharged by the heating furnace 9 enters the expander 1 to perform depressurization and work, flows through the second heat regenerator 11 to release heat and cool to a certain extent, enters the expander 1 to continue depressurization and work, flows through the heat regenerator 5 to release heat and cool and is provided for the evaporator 7, and the fuel carrying nuclear energy single-working-medium combined cycle steam power device is formed.
The fuel carrying homonuclear single-working-medium combined cycle steam power plant shown in fig. 5 is realized by the following steps:
(1) Structurally, in the fuel carrying homonuclear single-working-medium combined cycle steam power device shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, a condensate pipe of the condenser 6 is communicated with the booster pump 4, the condensate pipe of the condenser 6 is communicated with the low-temperature heat regenerator 13 through the second booster pump 12, a steam extraction channel is additionally arranged on the compressor 3 and is communicated with the low-temperature heat regenerator 13, and the condensate pipe of the low-temperature heat regenerator 13 is communicated with the booster pump 4.
(2) In flow, compared with the fuel carrying homonuclear 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 12 to be boosted and then enters the low-temperature regenerator 13 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 13 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 13, and a second path is divided into two paths after the boosting and the heating are continued, namely the first path is provided for the heat regenerator 5 and the second path is provided for the nuclear reactor 8, so that the fuel carrying same nuclear energy single-working-medium combined cycle steam power device is formed.
The fuel carrying homonuclear single-working-medium combined cycle steam power plant shown in fig. 6 is realized by the following steps:
(1) In the combined cycle steam power plant with the fuel carrying the same nuclear energy and the single working medium, a second evaporator and a diffusion pipe are added, the communication between a low-pressure steam channel of the heat regenerator 5 and the evaporator 7 is adjusted to be that the low-pressure steam channel of the heat regenerator 5 is communicated with the second evaporator 14 through the evaporator 7, the communication between the low-pressure steam channel of the 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 14 through the evaporator 7, the communication between the low-pressure steam channel of the evaporator 7 and the compressor 3 and the condenser 6 is respectively adjusted to be that the low-pressure steam channel of the second evaporator 14 is respectively communicated with the compressor 3 and the condenser 6, the communication between the condensate pipe of the condenser 6 and the evaporator 7 is adjusted to be that the condensate pipe of the condenser 6 is communicated with the second evaporator 14 through the booster pump 4, and then the wet steam channel of the second evaporator 14 is communicated with the evaporator 7 through the diffusion pipe 15.
(2) In flow, compared with the fuel carrying homonuclear 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 absorbed by the second evaporator 14 to be warmed, partially vaporized and accelerated, is reduced in speed and boosted by the diffuser pipe 15, and then enters the evaporator 7 to absorb heat and vaporize; 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 14, and then respectively enters the compressor 3 for boosting and heating and the condenser 6 for releasing heat and condensing, so that the fuel carrying homonuclear single-working-medium combined cycle steam power device is formed.
The fuel carrying homonuclear single-working-medium combined cycle steam power plant shown in fig. 7 is realized by the following steps:
(1) Structurally, in the fuel-carrying homonuclear power single-working-medium combined cycle steam power plant shown in fig. 1, an expansion speed increaser a is added to replace the expansion machine 1, a second expansion speed increaser B is added to replace the second expansion machine 2, a dual-energy compressor C is added to replace the compressor 3, and a new diffuser pipe D is added to replace the booster pump 4.
(2) In flow, compared with the fuel carrying homonuclear single-working-medium combined cycle steam power plant shown in fig. 1, the difference is that: part of low-pressure steam discharged by the evaporator 7 enters the dual-energy compressor C to be boosted, heated and decelerated to a certain extent and then is divided into two paths, wherein the first path flows through the heat regenerator 5 to absorb heat, and flows through the second expansion speed increaser B to be decompressed, acted and accelerated, then is provided for the evaporator 7, and the second path continuously boosts, heats and enters the nuclear reactor 8 to absorb heat; condensate discharged by the condenser 6 flows through the newly added diffuser pipe D to be reduced in speed and boosted, flows through the evaporator 7 to absorb heat and evaporate, and then enters the nuclear reactor 8 to absorb heat and raise temperature; steam discharged by the nuclear reactor 8 absorbs heat and rises temperature through the heating furnace 9, is subjected to depressurization and work by the expansion speed increaser A, is subjected to deceleration, is subjected to heat release and cooling by the heat regenerator 5, and is then provided for the evaporator 7; the low-pressure steam discharged by the heat regenerator 5 and the second expansion speed increaser B flows through the evaporator 7 to release heat and cool, and then is divided into two paths, wherein the first path enters the dual-energy compressor C to raise the pressure and raise the temperature and reduce the speed, and the second path enters the condenser 6 to release heat and condense; the work output by the expansion speed increaser A and the second expansion speed increaser B is provided for the dual-energy compressor C and external power to form the fuel carrying same-nuclear-energy single-working-medium combined cycle steam power device.
The fuel carrying homonuclear single-working-medium combined cycle steam power device has the following effects and advantages:
(1) And the fuel and nuclear energy share the integrated thermal power system, so that the construction cost of the thermal power system is saved, and the cost performance is high.
(2) The fuel and nuclear energy provide driving heat load links, the temperature difference loss is small, and the thermodynamic perfection is high.
(3) The nuclear energy plays a larger role by means of the fuel, and the utilization value of the fuel converted into mechanical energy is remarkably improved.
(4) 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.
(5) The nuclear energy can be used for or is beneficial to reducing the pressure boosting ratio of the combined cycle, improving the flow of the circulating working medium and being beneficial to constructing the large-load fuel carrying same-nuclear-energy single-working-medium combined cycle steam power device.
(6) In the system, the temperature difference utilization degree of the regenerative link between gases (steam) is high, and the heat change work efficiency is improved.
(7) In the system, in the regenerative link between the gas (steam) working medium and the liquid working medium, the gas working medium has large flow and relatively narrow temperature change interval, thereby being beneficial to reducing irreversible loss of temperature difference and improving heat-variable work efficiency.
(8) By utilizing the characteristics of working media, the temperature difference utilization level in the heat transfer process is improved by adopting a simple technical means, and the heat efficiency is improved.
(9) And a plurality of heat regeneration technical means are provided, so that the coordination of the device in the aspects of power, thermal efficiency, step-up ratio and the like is effectively improved.
(10) The flow is reasonable, the structure is simple, and the scheme is rich; the method is beneficial to improving the reasonable utilization level of energy and expanding the application range of the fuel carrying same nuclear energy single-working-medium combined cycle steam power device.
Claims (8)
1. The fuel carrying same nuclear energy 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 nuclear reactor, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (9), the outside is also provided with an air channel which is communicated with the heating furnace (9) through a heat source regenerator (10), the heating furnace (9) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (10), the compressor (3) is also provided with a first steam channel which is communicated with a second expander (2) through a regenerator (5), the second expander (2) is also provided with a low-pressure steam channel which is communicated with an evaporator (7), the compressor (3) is also provided with a second steam channel which is communicated with a nuclear reactor (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 nuclear reactor (8), the nuclear reactor (8) is also provided with a steam channel which is communicated with the expander (1) through the heat source regenerator (9), 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 channel which is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a fuel carrying same nuclear energy 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 fuel carrying same nuclear energy 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 nuclear reactor, a heating furnace and a heat source heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (9), the outside is also provided with an air channel which is communicated with the heating furnace (9) through a heat source regenerator (10), the heating furnace (9) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (10), 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 the evaporator (7), the compressor (3) is also provided with a second steam channel which is communicated with a nuclear reactor (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 nuclear reactor (8), the nuclear reactor (8) is also provided with a steam channel which is communicated with the expander (1) through the heat source regenerator (9), the expander (1) is also provided with a low-pressure steam channel which is communicated with the evaporator (7) after the expander (5) is also communicated with the evaporator (7), and the low-pressure steam channel is also communicated with the evaporator (3) is separated into two paths which are communicated with the first path and the second path (3) which is communicated with the 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 fuel carrying same nuclear energy 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 fuel carrying same nuclear energy 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 nuclear reactor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (9), the outside is also provided with an air channel which is communicated with the heating furnace (9) through a heat source regenerator (10), the heating furnace (9) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (10), 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 nuclear reactor (8) through a second regenerator (11), 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 expander (1) through the heat source regenerator (10), the expander (1) is also provided with a low-pressure steam channel which is communicated with the evaporator (7) through the second regenerator (11) and the regenerator (5), and the evaporator (7) is also provided with a low-pressure steam channel which is also communicated with the second evaporator (6) through the second regenerator (3) and the second path; 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 fuel carrying same nuclear energy 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 fuel carrying same nuclear energy 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 nuclear reactor, a heating furnace, a heat source heat regenerator and a second heat regenerator; the outside is provided with a fuel channel and a heating furnace (9) which are communicated, the outside is also provided with an air channel which is communicated with the heating furnace (9) through a heat source regenerator (10), the heating furnace (9) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (10), the compressor (3) is also 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) through the second regenerator (11), 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 nuclear reactor (8) through the second regenerator (11), the nuclear reactor (8) is also provided with a steam channel which is communicated with the expander (1) through the heating furnace (9), the expander (1) is also provided with a steam channel which is communicated with the evaporator (7) through the second regenerator (11), and 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 low-pressure steam channel which is communicated with the evaporator (7) through the second regenerator (7) and the evaporator (7) through the low-pressure channel is communicated with the second evaporator (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 fuel carrying same nuclear energy 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. In the fuel carrying and nuclear energy single-working-medium combined cycle steam power plant, a second booster pump and a low-temperature heat regenerator are added in any one of the fuel carrying and nuclear energy single-working-medium combined cycle steam power plants in claims 1-4, a condensate pipe of a condenser (6) is communicated with the booster pump (4) and is adjusted to be communicated with the low-temperature heat regenerator (13) through the second booster pump (12), a steam extraction channel is additionally arranged in a compressor (3) and is communicated with the low-temperature heat regenerator (13), and a condensate pipe of the low-temperature heat regenerator (13) is communicated with the booster pump (4), so that the fuel carrying and nuclear energy single-working-medium combined cycle steam power plant is formed.
6. In the fuel carrying and nuclear energy single-working-medium combined cycle steam power device, a second evaporator and a diffusion pipe are added in any one of the fuel carrying and nuclear energy single-working-medium combined cycle steam power devices in claims 1, 3 and 4, the low-pressure steam channel of a regenerator (5) is communicated with the evaporator (7) and is regulated to be communicated with the second evaporator (14) through the evaporator (7), the low-pressure steam channel of a 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 low-pressure steam channel of the evaporator (7) is respectively communicated with the compressor (3) and the condenser (6) and is regulated to be communicated with the second evaporator (14) through the low-pressure steam channel of the compressor (3) and the condenser (6), the condensate pipe of the condenser (6) is regulated to be communicated with the evaporator (7) through the booster pump (4) and is regulated to be communicated with the condenser (6) through the condenser (14) through the booster pump (4) and is communicated with the second evaporator (14) through the second evaporator (14), and the condensate liquid is formed to be communicated with the single-working-medium through the evaporator (14) through the single-working-medium combined cycle steam power device.
7. In the fuel carrying and nuclear energy single-working-medium combined cycle steam power device, a second evaporator and a diffusion pipe are added in the fuel carrying and nuclear energy single-working-medium combined cycle steam power device, the low-pressure steam channel of the expander (1) is communicated with the evaporator (7) and is adjusted to be communicated with the second evaporator (14) through the evaporator (7), the low-pressure steam channel of the second expander (2) is communicated with the evaporator (7) and is adjusted to be communicated with the second evaporator (2) through the evaporator (7) and is communicated with the second evaporator (14), 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 low-pressure steam channel of the second evaporator (14) through the pressure boosting pump (4) and is adjusted to be communicated with the condenser (6) through the condensate liquid pipe (4) and the evaporator (7) and is communicated with the second evaporator (14) through the condensate liquid pipe (4) and is then communicated with the second evaporator (14) through the nuclear energy single-working-medium combined cycle steam power device through the second evaporator (15).
8. In the fuel carrying and nuclear energy single-working-medium combined cycle steam power plant, 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) to form the fuel carrying and nuclear energy single-working-medium combined cycle steam power plant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311871549.3A Pending CN117759367A (en) | 2022-12-30 | 2023-12-29 | Fuel carrying same nuclear energy single-working-medium combined cycle steam power device |
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