CN117722323A - Photo-thermal combined cycle steam power device with same nuclear energy - Google Patents
Photo-thermal combined cycle steam power device with same nuclear energy Download PDFInfo
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Abstract
The invention provides a photo-thermal energy-carrying combined cycle steam power device, and belongs to the technical field of thermodynamics and thermokinetic. 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 compressor 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 solar heat collection system, the solar heat collection system is also 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 evaporator and then 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 steam turbine is connected with the compressor and transmits power to form the photo-thermal energy carrying and nuclear energy 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:
photo-thermal and nuclear energy can realize thermal work; the same or different thermal power principles are adopted, and different system devices are utilized to pay corresponding construction cost, so that the conversion of photo-thermal or nuclear energy into mechanical energy is realized; obviously, it is of positive interest to try to reduce the number of thermal power devices.
In order to improve the heat-changing work efficiency, the improvement of the photo-thermal temperature is an important direction of solar energy utilization and development, and the high-temperature gas cooled reactor technology is an important direction of nuclear energy utilization and development; along with the increase of the heating temperature, the corresponding construction cost is obviously increased; based on the specificity, nuclear reactors have higher safety requirements, which limits to a certain extent the continuous increase of the heating temperature of the nuclear reactor.
The dynamic application value of light and heat is difficult to be improved in the same proportion along with the improvement of the temperature of light and heat due to the influence of the working principle, materials, thermodynamic cycle and the property of working medium, and the irreversible loss of temperature difference exists in the application process of nuclear fuel.
The integrated thermodynamic cycle technology with high thermodynamic perfection, reasonable flow and simple structure is established across types and grade barriers, the construction cost of a thermal power system is reduced, and the high-value power application of high-temperature photo-thermal and nuclear fuel is realized, so that the method has important significance.
The invention provides a photo-thermal energy carrying combined cycle steam power device which takes single-working-medium combined cycle as a basic working principle, has a simple structure and high thermodynamic perfection, remarkably improves the application value of the photo-thermal energy and the nuclear energy power, and has low construction cost and high cost performance.
The invention comprises the following steps:
the invention mainly aims to provide a photo-thermal energy-carrying combined cycle steam power device, and the specific invention is described in the following items:
1. the photo-thermal combined cycle steam power plant with the same nuclear energy mainly comprises a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor and a solar heat collection system; 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 compressor 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 solar heat collection system, the solar heat collection system is also 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 evaporator and then 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 steam turbine is connected with the compressor and transmits power to form a photo-thermal energy carrying and nuclear energy combined cycle steam power device; wherein, or the steam turbine connects the compressor and the booster pump and transmits power.
2. The photo-thermal energy-carrying combined cycle steam power device mainly comprises a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor, a solar heat collection system and a high-temperature regenerator; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with the nuclear reactor through a high-temperature heat regenerator, the compressor is provided with a steam channel which is communicated with the nuclear reactor through the high-temperature heat regenerator, the nuclear reactor is also provided with a steam channel which is communicated with a solar heat collection system, the solar heat collection system is also provided with a steam channel which is communicated with a steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the evaporator through the high-temperature heat regenerator and then 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 steam turbine is connected with the compressor and transmits power to form a photo-thermal energy carrying and nuclear energy combined cycle steam power device; wherein, or the steam turbine connects the compressor and the booster pump and transmits power.
3. The photo-thermal energy-carrying combined cycle steam power device mainly comprises a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor, a solar heat collection system and a high-temperature regenerator; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with the nuclear reactor through a high-temperature heat regenerator, the compressor is provided with a steam channel which is communicated with the nuclear reactor through the high-temperature heat regenerator, the nuclear reactor is also provided with a steam channel which is communicated with a solar heat collection system, the solar heat collection system is also provided with a steam channel which is communicated with a steam turbine, the steam turbine is also provided with a steam channel which is communicated with the steam generator through the high-temperature heat regenerator, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the evaporator and then 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 steam turbine is connected with the compressor and transmits power to form a photo-thermal energy carrying and nuclear energy combined cycle steam power device; wherein, or the steam turbine connects the compressor and the booster pump and transmits power.
4. The photo-thermal energy-carrying combined cycle steam power device mainly comprises a steam turbine, a compressor, a booster pump, a condenser, a nuclear reactor, a solar heat collection system and a heater; the condenser is provided with a condensate pipeline which is communicated with the nuclear reactor through a booster pump, then the nuclear reactor is provided with a steam channel which is communicated with the solar heat collection system, the compressor is provided with a steam channel which is communicated with the solar heat collection system, the solar heat collection system is also 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 divided into two paths after being communicated with the heater, wherein the first path is communicated with the compressor and the second path is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heater is also provided with a heated medium channel which is communicated with the outside, and the steam turbine is connected with the compressor and transmits power to form a photo-thermal energy-carrying combined cycle steam power device; wherein, or the steam turbine connects the compressor and the booster pump and transmits power.
5. The photo-thermal combined cycle steam power plant with the same nuclear energy mainly comprises a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor and a solar heat collection system; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with a nuclear reactor, the nuclear reactor is also provided with a steam channel which is communicated with a steam turbine through an intermediate port, the compressor is provided with a steam channel which is communicated with a solar heat collection system through the nuclear reactor, the solar heat collection system is also 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 evaporator and then 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 steam turbine is connected with the compressor and transmits power to form a photo-thermal energy carrying and nuclear energy combined cycle steam power device; wherein, or the steam turbine connects the compressor and the booster pump and transmits power.
6. The photo-thermal energy-carrying combined cycle steam power device mainly comprises a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor, a solar heat collection system and a second steam turbine; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a booster pump, then the evaporator is provided with a steam channel which is communicated with a second steam turbine, the second steam turbine is also provided with a low-pressure steam channel which is communicated with the evaporator, the compressor is provided with a steam channel which is communicated with a solar heat collection system through a nuclear reactor, the solar heat collection system is also provided with a steam channel which is communicated with the steam turbine, the steam turbine is also provided with a low-pressure steam channel which is communicated with the evaporator, 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 steam turbine is connected with the compressor and transmits power to form a photo-thermal energy carrying and nuclear energy combined cycle steam power device; wherein, or the steam turbine connects the compressor and the booster pump and transmits power.
7. The photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power device is formed by adjusting the communication of a steam channel of a solar heat collection system and a steam turbine in any one of the photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power devices 1-6 to the communication of the steam channel of the solar heat collection system and the steam turbine, and then the communication of the steam turbine and a reheat steam channel of the steam turbine and the self through a nuclear reactor.
8. The photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power device is formed by adjusting the communication of a steam channel of a solar heat collection system and a steam turbine in any one of the photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power devices 1-6 to be that the communication of the steam channel of the solar heat collection system and the steam turbine is carried out, and then the steam turbine and a reheat steam channel of the steam turbine are communicated with the photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power device through the solar heat collection system.
9. The photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power device is formed by adjusting the communication of a steam channel of a solar heat collection system and a steam turbine in any one of the photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power devices 1-6 to be that the communication of the steam channel of the solar heat collection system and the steam turbine is carried out, and then the steam turbine and a reheat steam channel of the steam turbine are communicated with the photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power device through a nuclear reactor and the solar heat collection system.
10. The photo-thermal energy-carrying 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 photo-thermal energy-carrying combined cycle steam power devices 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 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 photo-thermal energy-carrying combined cycle steam power device is formed.
11. A photo-thermal combined cycle steam power device with the same nuclear energy is formed by adding a new evaporator and a new diffusion pipe in any one of the photo-thermal combined cycle steam power devices with the same nuclear energy in the 1 st, the 3 rd and the 5 th, adjusting the communication between a low-pressure steam channel of a steam turbine and the evaporator to be the communication between the low-pressure steam channel of the steam turbine and the new evaporator through the evaporator, adjusting the communication between the low-pressure steam channel of the evaporator and the compressor to be the communication between the low-pressure steam channel of the new evaporator and the compressor and the condenser, adjusting the communication between a condensate pipe of the condenser and the evaporator through a booster pump and the condenser to be the communication between the condensate pipe of the condenser and the new evaporator through the booster pump and the new diffusion pipe, and then communicating the wet steam channel of the new evaporator with the evaporator.
12. A photo-thermal combined cycle steam power device with the same nuclear energy is formed by adding a new evaporator and a new diffusion pipe in the photo-thermal combined cycle steam power device with the same nuclear energy in the 2 nd, adjusting a low-pressure steam passage of a steam turbine to be communicated with the evaporator through a high-temperature heat regenerator to be communicated with the new evaporator through the high-temperature heat regenerator and the evaporator, adjusting the low-pressure steam passage of the evaporator to be respectively communicated with a compressor and a condenser to be respectively communicated with the new evaporator to be respectively communicated with the compressor and the condenser, adjusting a condensate pipe of the condenser to be communicated with the new evaporator through a booster pump and the condenser to be communicated with the new evaporator through the new diffusion pipe, and then, adjusting the new evaporator to be communicated with the new evaporator through the new diffusion pipe.
13. The photo-thermal energy-carrying and nuclear energy-carrying combined cycle steam power plant is formed by adding an expansion speed increaser to replace a steam turbine, adding a dual-energy compressor to replace a compressor, adding a diffuser pipe to replace a booster pump in any one of the photo-thermal energy-carrying and nuclear energy-carrying combined cycle steam power plants of the 1 st to 12 th.
Description of the drawings:
FIG. 1 is a schematic thermodynamic system diagram of a photo-thermal co-nuclear combined cycle steam power plant according to the invention.
FIG. 2 is a schematic thermodynamic system diagram of a photo-thermal co-nuclear combined cycle steam power plant according to the present invention.
FIG. 3 is a schematic thermodynamic system diagram of a light and heat carrying co-nuclear combined cycle steam power plant according to the invention.
FIG. 4 is a schematic thermodynamic system diagram of a photo-thermal co-nuclear combined cycle steam power plant according to the invention.
FIG. 5 is a schematic thermodynamic system diagram of a photo-thermal co-nuclear combined cycle steam power plant according to the invention.
FIG. 6 is a schematic thermodynamic system diagram of a photo-thermal co-nuclear combined cycle steam power plant according to the invention.
FIG. 7 is a schematic diagram of a 7 th principle thermodynamic system of a photo-thermal co-nuclear combined cycle steam power plant according to the present invention.
FIG. 8 is a schematic thermodynamic system diagram of a photo-thermal co-nuclear combined cycle steam power plant according to the invention.
FIG. 9 is a schematic thermodynamic system diagram of a 9 th principle of a photo-thermal co-nuclear combined cycle steam power plant according to the present invention.
FIG. 10 is a schematic diagram of a solar-thermal co-nuclear combined cycle steam power plant according to the present invention.
In the figure, a 1-turbine, a 2-compressor, a 3-booster pump, a 4-condenser, a 5-evaporator, a 6-nuclear reactor, a 7-solar heat collection system, an 8-high temperature regenerator, a 9-heat supply device, a 10-second turbine, an 11-second booster pump, a 12-low temperature regenerator, a 13-expansion speed increaser, a 14-dual-energy compressor, a 15-diffusion pipe, an A-newly added evaporator and a B-newly added diffusion pipe.
(1) Regarding the photo-thermal and solar heat collection system, the following brief description is given here:
(1) solar heat collection systems, also known as solar heating systems, refer to heating systems that utilize a heat collector to convert solar radiant energy into high temperature heat (simply referred to as photo-thermal), which can be used to provide a driving heat load to a thermodynamic cycle system; it is mainly composed of heat collector and related necessary auxiliary facilities.
(2) Types of solar energy collection systems include, but are not limited to: (1) the concentrating solar heat collection system mainly comprises a groove type system, a tower type system and a butterfly type system at present; (2) the non-concentrating solar heat collecting system has solar pond, solar chimney and other systems.
(3) There are two main types of heat supply modes of solar heat collection systems at present: (1) the high-temperature heat energy converted by solar energy is directly supplied to a circulating working medium flowing through a solar heat collection system; (2) the high-temperature heat energy converted from solar energy is firstly provided for a working medium of a self-circulation loop, and then the working medium is provided for a circulation working medium flowing through a solar heat collection system through a heat exchanger.
(2) Regarding nuclear energy and nuclear reactors, the following brief description is given here:
the nuclear reactor in the present application is a heating device for directly or indirectly providing a high-temperature heat load to a working medium by using nuclear energy, and generally comprises two cases:
(1) the nuclear fuel directly provides the circulating working medium flowing through the nuclear reactor with heat energy released by nuclear reaction.
(2) The heat energy released by the nuclear fuel by the nuclear reaction is first supplied to a circuit cooling medium and then supplied by the circuit cooling medium to the circulating fluid flowing through the nuclear reactor by means of a heat exchanger, which means that the heat exchanger is considered as an integral part of the nuclear reactor 6.
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 photo-thermal co-nuclear combined cycle steam power plant shown in fig. 1 is realized by the following steps:
(1) Structurally, it mainly consists of a turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor and a solar heat collection system; the condenser 4 is provided with a condensate pipeline which is communicated with the evaporator 5 through the booster pump 3, then the evaporator 5 is provided with a steam channel which is communicated with the nuclear reactor 6, the compressor 2 is provided with a steam channel which is communicated with the nuclear reactor 6, the nuclear reactor 6 is also provided with a steam channel which is communicated with the solar heat collection system 7, the solar heat collection system 7 is also 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 evaporator 5 and then is divided into two paths, namely, the first path is communicated with the compressor 2 and the second path is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, and the steam turbine 1 is connected with the compressor 2 and transmits power.
(2) In the flow, condensate of the condenser 4 is boosted by the booster pump 3, is subjected to heat absorption and temperature rise and vaporization by the evaporator 5, and then is subjected to heat absorption and temperature rise by the nuclear reactor 6, and steam discharged by the compressor 2 is subjected to heat absorption and temperature rise by the nuclear reactor 6; steam discharged by the nuclear reactor 6 is subjected to heat absorption and temperature rise through the solar heat collection system 7, and then is subjected to pressure reduction and work through the steam turbine 1; the low-pressure steam discharged by the steam turbine 1 flows through the evaporator 5 to release heat and cool, and then is divided into two paths, wherein the first path enters the compressor 2 to raise the pressure and raise the temperature, and the second path enters the condenser 4 to release heat and condense; the nuclear fuel provides a driving heat load through a nuclear reactor 6, the solar energy provides a driving heat load through a solar heat collection system 7, and the cooling medium takes away a low-temperature heat load through a condenser 4; the work output by the steam turbine 1 is provided for the compressor 2 and external power, or the work output by the steam turbine 1 is provided for the compressor 2, the booster pump 3 and external power, so that the photo-thermal energy carrying and nuclear energy combined cycle steam power device is formed.
The photo-thermal co-nuclear combined cycle steam power plant shown in fig. 2 is realized by the following steps:
(1) Structurally, it mainly comprises a turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor, a solar heat collection system and a high-temperature regenerator; the condenser 4 is provided with a condensate pipeline which is communicated with the evaporator 5 through the booster pump 3, then the evaporator 5 is further provided with a steam channel which is communicated with the nuclear reactor 6 through the high-temperature heat regenerator 8, the compressor 2 is provided with a steam channel which is communicated with the nuclear reactor 6 through the high-temperature heat regenerator 8, the nuclear reactor 6 is further provided with a steam channel which is communicated with the solar heat collection system 7, the solar heat collection system 7 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is further provided with a low-pressure steam channel which is divided into two paths after being communicated with the evaporator 5 through the high-temperature heat regenerator 8, wherein the first path is communicated with the compressor 2 and the second path is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, and the steam turbine 1 is connected with the compressor 2 and transmits power.
(2) In the flow, compared with the photo-thermal energy carrying and nuclear energy combined cycle steam power plant shown in fig. 1, the difference is that: the high-pressure steam respectively discharged by the evaporator 5 and the compressor 2 flows through the high-temperature heat regenerator 8 to absorb heat and raise temperature, and then enters the nuclear reactor 3 to absorb heat and raise temperature; the low-pressure steam discharged by the steam turbine 1 flows through the high-temperature heat regenerator 8 and the evaporator 5 to release heat and cool gradually, and then respectively enters the compressor 2 to raise the pressure and raise the temperature and enters the condenser 4 to release heat and condense, so as to form the photo-thermal energy carrying and nuclear energy combined cycle steam power device.
The photo-thermal co-nuclear combined cycle steam power plant shown in fig. 3 is realized by the following steps:
(1) Structurally, the device consists of a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor, a solar heat collection system and a high-temperature heat regenerator; the condenser 4 is provided with a condensate pipeline which is communicated with the evaporator 5 through the booster pump 3, then the evaporator 5 is provided with a steam channel which is communicated with the nuclear reactor 6 through the high-temperature heat regenerator 8, the compressor 2 is provided with a steam channel which is communicated with the nuclear reactor 6 through the high-temperature heat regenerator 8, the nuclear reactor 6 is also provided with a steam channel which is communicated with the solar heat collection system 7, the solar heat collection system 7 is also provided with a steam channel which is communicated with the steam turbine 1, the steam turbine 1 is also provided with a steam channel which is communicated with the steam turbine 1 through the high-temperature heat regenerator 8, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 5 and then is divided into two paths, namely, the first path is communicated with the compressor 2 and the second path is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, and the steam turbine 1 is connected with the compressor 2 and transmits power.
(2) In the flow, compared with the photo-thermal energy carrying and nuclear energy combined cycle steam power plant shown in fig. 1, the difference is that: the high-pressure steam respectively discharged by the evaporator 5 and the compressor 2 flows through the high-temperature heat regenerator 8 to absorb heat and raise temperature, and then enters the nuclear reactor 3 to absorb heat and raise temperature; the steam discharged by the solar heat collection system 7 enters the steam turbine 1 to be depressurized and work, flows through the high-temperature heat regenerator 8 to release heat and cool to a certain extent, and then enters the steam turbine 1 to be depressurized and work continuously; the low-pressure steam discharged by the steam turbine 1 flows through the evaporator 5 to release heat and cool, then enters the compressor 2 to raise the pressure and heat and enters the condenser 4 to release heat and condense respectively, so as to form the photo-thermal energy-carrying combined cycle steam power device.
The photo-thermal co-nuclear combined cycle steam power plant shown in fig. 4 is realized by the following steps:
(1) Structurally, it mainly comprises a turbine, a compressor, a booster pump, a condenser, a nuclear reactor, a solar heat collection system and a heater; the condenser 4 is provided with a condensate pipeline which is communicated with the nuclear reactor 6 through the booster pump 3, then the nuclear reactor 6 is further provided with a steam channel which is communicated with the solar heat collection system 7, the compressor 2 is provided with a steam channel which is communicated with the solar heat collection system 7, the solar heat collection system 7 is also 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 heater 9 and then is divided into two paths, namely, the first path is communicated with the compressor 2 and the second path is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heater 9 is also provided with a heated medium passage communicated with the outside, and the steam turbine 1 is connected with the compressor 2 and transmits power.
(2) In the flow, compared with the photo-thermal energy carrying and nuclear energy combined cycle steam power plant shown in fig. 1, the difference is that: condensate of the condenser 4 is boosted by the booster pump 3, is subjected to heat absorption, temperature rise and vaporization by the nuclear reactor 6, then enters the solar heat collection system 7 to absorb heat, and steam discharged by the compressor 2 enters the solar heat collection system 7 to absorb heat; low-pressure steam discharged by the steam turbine 1 flows through the heat supplier 9 to release heat and cool, and then enters the compressor 2 to raise the pressure and heat and enters the condenser 4 to release heat and condense respectively; the heated medium takes away the heat supply load through the heater 9 to form the photo-thermal energy carrying and nuclear energy combined cycle steam power device.
The photo-thermal co-nuclear combined cycle steam power plant shown in fig. 5 is realized by the following steps:
(1) Structurally, it mainly consists of a turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor and a solar heat collection system; the condenser 4 is provided with a condensate pipeline which is communicated with the evaporator 5 through the booster pump 3, then the evaporator 5 is further provided with a steam channel which is communicated with the nuclear reactor 6, the nuclear reactor 6 is also provided with a steam channel which is communicated with the steam turbine 1 through an intermediate port, the compressor 2 is provided with a steam channel which is communicated with the solar heat collection system 7 through the nuclear reactor 6, the solar heat collection system 7 is also 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 divided into two paths after being communicated with the evaporator 5, wherein the first path is communicated with the compressor 2 and the second path is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, and the steam turbine 1 is connected with the compressor 2 and transmits power.
(2) In the flow, compared with the photo-thermal energy carrying and nuclear energy combined cycle steam power plant shown in fig. 1, the difference is that: the condensate of the condenser 4 is boosted by the booster pump 3, is heated and vaporized by the heat absorption of the evaporator 5, is continuously absorbed by the nuclear reactor 6, and then enters the steam turbine 1 through the middle steam inlet port to be subjected to pressure reduction and work; steam discharged by the compressor 2 is subjected to heat absorption and temperature rise through the nuclear reactor 6, is subjected to heat absorption and temperature rise through the solar heat collection system 7, and then enters the steam turbine 1 to be subjected to pressure reduction and work; the low-pressure steam discharged by the steam turbine 1 flows through the evaporator 5 to release heat and cool, then enters the compressor 2 to raise the pressure and heat and enters the condenser 4 to release heat and condense respectively, so as to form the photo-thermal energy-carrying combined cycle steam power device.
The photo-thermal co-nuclear combined cycle steam power plant shown in fig. 6 is realized by the following steps:
(1) Structurally, it mainly comprises a turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor, a solar heat collection system and a second turbine; the condenser 4 is provided with a condensate pipeline which is communicated with the evaporator 5 through a booster pump 3, then the evaporator 5 is further provided with a steam channel which is communicated with the second steam turbine 10, the second steam turbine 10 is further provided with a low-pressure steam channel which is communicated with the evaporator 5, the compressor 2 is provided with a steam channel which is communicated with the solar heat collection system 7 through the nuclear reactor 6, the solar heat collection system 7 is further provided with a steam channel which is communicated with the steam turbine 1, the steam turbine 1 is further provided with a low-pressure steam channel which is communicated with the evaporator 5, and the evaporator 5 is further provided with a low-pressure steam channel which is respectively communicated with the compressor 2 and the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, and the steam turbine 1 is connected with the compressor 2 and transmits power.
(2) In the flow, compared with the photo-thermal energy carrying and nuclear energy combined cycle steam power plant shown in fig. 1, the difference is that: the condensate of the condenser 4 is boosted by the booster pump 3, is subjected to heat absorption, temperature rise and vaporization by the evaporator 5, is subjected to pressure reduction and work by the second steam turbine 10, and then enters the evaporator 5; the steam discharged by the compressor 2 is gradually absorbed in heat and increased in temperature through the nuclear reactor 6 and the solar heat collection system 7, is subjected to pressure reduction and work through the steam turbine 1, and then enters the evaporator 5; the low-pressure steam flows through the evaporator 5 to release heat and cool, and then is divided into two paths, wherein the first path enters the compressor 2 to raise the pressure and the temperature, and the second path enters the condenser 4 to release heat and condense; the work output by the turbine 1 and the second turbine 10 is provided for the compressor 2 and the external power, or the work output by the turbine 1 and the second turbine 10 is provided for the compressor 2, the booster pump 3 and the external power, so that the photo-thermal energy carrying and nuclear energy combined cycle steam power device is formed.
The photo-thermal co-nuclear combined cycle steam power plant shown in fig. 7 is realized by the following steps:
(1) In the combined cycle steam power plant with the photo-thermal energy carrying and the nuclear energy shown in the figure 1, the solar heat collection system 7 is communicated with the steam turbine 1 to adjust that the solar heat collection system 7 is communicated with the steam turbine 1 through the steam channel, and then the steam turbine 1 is communicated with the solar heat collection system 7 through the reheat steam channel.
(2) In the flow, compared with the photo-thermal energy carrying and nuclear energy combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged by the solar heat collection system 7 enters the steam turbine 1 to perform depressurization and work, enters the solar heat collection system 7 to absorb heat and raise temperature after reaching a certain degree, then enters the steam turbine 1 to continue depressurization and work, and the low-pressure steam discharged by the steam turbine 1 is provided for the evaporator 5 to form the photo-thermal energy-carrying combined cycle steam power device.
The photo-thermal co-nuclear combined cycle steam power plant shown in fig. 8 is realized by the following steps:
(1) Structurally, in the photo-thermal combined cycle steam 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 the condenser 4 is communicated with the booster pump 3, the condensate pipe arranged on the condenser 4 is communicated with the low-temperature heat regenerator 12 through the second booster pump 11, a steam extraction channel is additionally arranged on the compressor 2 and is communicated with the low-temperature heat regenerator 12, and the condensate pipe arranged on the low-temperature heat regenerator 12 is communicated with the booster pump 3.
(2) In the flow, compared with the photo-thermal energy carrying and nuclear energy combined cycle steam 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 heat regenerator 12 to be mixed with the extracted steam from the compressor 2, absorbs heat and heats up, and the extracted steam is released into condensate; condensate of the low-temperature heat regenerator 12 flows through the booster pump 3 to boost pressure, and then enters the evaporator 5 to absorb heat to raise temperature and vaporize; the low-pressure steam discharged by the steam turbine 1 flows through the evaporator 5 to release heat and cool, and then is divided into two paths, wherein the first path enters the compressor 2 to raise the pressure and raise the temperature, and the second path enters the condenser 4 to release heat and condense; the low-pressure steam enters the compressor 2 for boosting and heating, is divided into two paths after being boosted to a certain extent, wherein the first path is provided for the low-temperature heat regenerator 12, and the second path is continuously boosted and heated and then enters the nuclear reactor 6, so that the photo-thermal energy carrying combined cycle steam power device is formed.
The photo-thermal co-nuclear combined cycle steam power plant shown in fig. 9 is realized by the following steps:
(1) In the combined cycle steam power plant with photo-thermal energy and nuclear energy shown in fig. 1, a newly added evaporator and a newly added diffuser pipe are added, a low-pressure steam channel of a steam turbine 1 is communicated with an evaporator 5 and is adjusted to be communicated with a newly added evaporator A through the evaporator 5, the low-pressure steam channel of the evaporator 5 is respectively communicated with a compressor 2 and a condenser 4 and is adjusted to be communicated with the newly added evaporator A through the low-pressure steam channel which is respectively communicated with the compressor 2 and the condenser 4, a condensate pipe of the condenser 4 is communicated with the evaporator 5 through a booster pump 3 and is adjusted to be communicated with the newly added evaporator A through the booster pump 3, and then a wet steam channel of the newly added evaporator A is communicated with the evaporator 5 through the newly added diffuser pipe B.
(2) In the flow, compared with the photo-thermal energy carrying and nuclear energy combined cycle steam power plant shown in fig. 1, the difference is that: the condensate discharged by the condenser 4 is boosted by the booster pump 3, absorbs heat and rises in temperature by the newly added evaporator A, is partially vaporized and increases in speed, is reduced in speed and boosted by the newly added diffuser pipe B, and then enters the evaporator 5 to absorb vaporization; the low-pressure steam discharged by the steam turbine 1 flows through the evaporator 5 and the newly added evaporator A to release heat and cool gradually, and then respectively enters the compressor 2 to raise the pressure and raise the temperature and enters the condenser 4 to release heat and condense, so as to form the photo-thermal energy carrying and nuclear energy combined cycle steam power device.
The photo-thermal co-nuclear combined cycle steam power plant shown in fig. 10 is realized by the following steps:
(1) Structurally, in the combined cycle steam power plant with photo-thermal energy and nuclear energy shown in fig. 1, an expansion speed increaser 13 is added to replace a steam turbine 1, a dual-energy compressor 14 is added to replace a compressor 2, and a diffuser 15 is added to replace a booster pump 3.
(2) In the flow, compared with the photo-thermal energy carrying and nuclear energy combined cycle steam power plant shown in fig. 1, the difference is that: condensate of the condenser 4 is subjected to speed reduction and pressure increase through a diffuser pipe 15, is subjected to heat absorption, temperature rise and vaporization through the evaporator 5, and then enters a nuclear reactor 6 to absorb heat, and steam discharged by the dual-energy compressor 14 enters the nuclear reactor 6 to absorb heat; the steam discharged by the solar heat collection system 7 flows through the expansion speed increaser 13 to be subjected to pressure reduction, work and speed increase, the low-pressure steam discharged by the expansion speed increaser 13 flows through the evaporator 5 to be subjected to heat release and temperature reduction, and then the low-pressure steam is divided into two paths, namely, a first path enters the dual-energy compressor 14 to be subjected to pressure increase, temperature rise and speed reduction, and a second path enters the condenser 4 to be subjected to heat release and condensation; the work output by the expansion speed increaser 13 is provided for a dual-energy compressor 14 and external power to form a photo-thermal energy carrying and nuclear energy combined cycle steam power device.
The photo-thermal energy carrying and same nuclear energy combined cycle steam power device provided by the invention has the following effects and advantages:
(1) The high-temperature photo-thermal and nuclear energy sharing integrated thermal power system combines the thermal power systems of different driving energy sources into a whole, saves the construction cost of the thermal power system and has high cost performance.
(2) And the cross type and cross grade carrying is realized between the high-temperature photo-thermal and nuclear energy, and the thermodynamic perfection is high.
(3) The high-temperature photo-thermal and nuclear energy drive the thermal load link, so that the temperature difference loss is reduced, and the thermodynamic perfection is high.
(4) The nuclear fuel plays a larger role by means of high-temperature photo-heat, and the irreversible loss of temperature difference in the process of providing driving heat load by the high-temperature photo-heat is reduced.
(5) The driving heat load realizes graded utilization in the single-working-medium combined cycle, obviously reduces irreversible loss of temperature difference, and has high heat-changing work efficiency and thermodynamic perfection.
(6) The 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 a large-load photo-thermal energy-carrying combined cycle steam power device.
(7) By utilizing the characteristics of working media, the temperature difference utilization level in the heat transfer process is obviously improved by adopting a simple technical means, and the heat efficiency is improved.
(8) And a plurality of heat recovery technical means are provided, so that the coordination of the device in the aspects of load, performance index, step-up ratio and the like is effectively improved.
(9) The structure is simple, the flow is reasonable, and the scheme is rich; the reasonable utilization level of energy is improved, and the application range of the photo-thermal energy carrying and nuclear energy combined cycle steam power device is expanded.
Claims (13)
1. The photo-thermal combined cycle steam power plant with the same nuclear energy mainly comprises a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor and a solar heat collection system; the condenser (4) is provided with a condensate pipeline which is communicated with the evaporator (5) through a booster pump (3), then the evaporator (5) is further provided with a steam channel which is communicated with the nuclear reactor (6), the compressor (2) is provided with a steam channel which is communicated with the nuclear reactor (6), the nuclear reactor (6) is also provided with a steam channel which is communicated with the solar heat collection system (7), the solar heat collection system (7) is also 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 evaporator (5) and then is divided into two paths, namely, the first path is communicated with the compressor (2) and the second path is communicated with the condenser (4); the condenser (4) is also provided with a cooling medium channel which is communicated with the outside, the steam turbine (1) is connected with the compressor (2) and transmits power to form a photo-thermal combined cycle steam power device with the same nuclear energy; wherein, or the steam turbine (1) is connected with the compressor (2) and the booster pump (3) and transmits power.
2. The photo-thermal energy-carrying combined cycle steam power device mainly comprises a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor, a solar heat collection system and a high-temperature regenerator; the condenser (4) is provided with a condensate pipeline which is communicated with the evaporator (5) through a booster pump (3), then the evaporator (5) is further provided with a steam channel which is communicated with the nuclear reactor (6) through a high-temperature heat regenerator (8), the compressor (2) is provided with a steam channel which is communicated with the nuclear reactor (6) through the high-temperature heat regenerator (8), the nuclear reactor (6) is also provided with a steam channel which is communicated with a solar heat collection system (7), the solar heat collection system (7) is also 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 divided into two paths after being communicated with the evaporator (5) through the high-temperature heat regenerator (8), wherein the first path is communicated with the compressor (2) and the second path is communicated with the condenser (4); the condenser (4) is also provided with a cooling medium channel which is communicated with the outside, the steam turbine (1) is connected with the compressor (2) and transmits power to form a photo-thermal combined cycle steam power device with the same nuclear energy; wherein, or the steam turbine (1) is connected with the compressor (2) and the booster pump (3) and transmits power.
3. The photo-thermal energy-carrying combined cycle steam power device mainly comprises a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor, a solar heat collection system and a high-temperature regenerator; the condenser (4) is provided with a condensate pipeline which is communicated with the evaporator (5) through a booster pump (3), then the evaporator (5) is further provided with a steam channel which is communicated with the nuclear reactor (6) through a high-temperature heat regenerator (8), the compressor (2) is provided with a steam channel which is communicated with the nuclear reactor (6) through the high-temperature heat regenerator (8), the nuclear reactor (6) is also provided with a steam channel which is communicated with a solar heat collection system (7), the solar heat collection system (7) is also provided with a steam channel which is communicated with the steam turbine (1), the steam turbine (1) is also provided with a steam channel which is communicated with the steam generator through the high-temperature heat regenerator (8), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the evaporator (5) and then is divided into two paths, namely a first path which is communicated with the compressor (2) and a second path which is communicated with the condenser (4); the condenser (4) is also provided with a cooling medium channel which is communicated with the outside, the steam turbine (1) is connected with the compressor (2) and transmits power to form a photo-thermal combined cycle steam power device with the same nuclear energy; wherein, or the steam turbine (1) is connected with the compressor (2) and the booster pump (3) and transmits power.
4. The photo-thermal energy-carrying combined cycle steam power device mainly comprises a steam turbine, a compressor, a booster pump, a condenser, a nuclear reactor, a solar heat collection system and a heater; the condenser (4) is provided with a condensate pipeline which is communicated with the nuclear reactor (6) through the booster pump (3), then the nuclear reactor (6) is provided with a steam channel which is communicated with the solar heat collection system (7), the compressor (2) is provided with a steam channel which is communicated with the solar heat collection system (7), the solar heat collection system (7) is also 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 heat supply device (9) and then is divided into two paths, namely a first path which is communicated with the compressor (2) and a second path which is communicated with the condenser (4); the condenser (4) is also provided with a cooling medium channel which is communicated with the outside, the heater (9) is also provided with a heated medium channel which is communicated with the outside, and the steam turbine (1) is connected with the compressor (2) and transmits power to form a photo-thermal energy carrying and nuclear energy combined cycle steam power device; wherein, or the steam turbine (1) is connected with the compressor (2) and the booster pump (3) and transmits power.
5. The photo-thermal combined cycle steam power plant with the same nuclear energy mainly comprises a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor and a solar heat collection system; the condenser (4) is provided with a condensate pipeline which is communicated with the evaporator (5) through a booster pump (3), then the evaporator (5) is further provided with a steam channel which is communicated with the nuclear reactor (6), the nuclear reactor (6) is also provided with a steam channel which is communicated with the steam turbine (1) through an intermediate port, the compressor (2) is also provided with a steam channel which is communicated with the solar heat collection system (7) through the nuclear reactor (6), the solar heat collection system (7) is also 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 evaporator (5) and then is divided into two paths, namely, the first path is communicated with the compressor (2) and the second path is communicated with the condenser (4); the condenser (4) is also provided with a cooling medium channel which is communicated with the outside, the steam turbine (1) is connected with the compressor (2) and transmits power to form a photo-thermal combined cycle steam power device with the same nuclear energy; wherein, or the steam turbine (1) is connected with the compressor (2) and the booster pump (3) and transmits power.
6. The photo-thermal energy-carrying combined cycle steam power device mainly comprises a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a nuclear reactor, a solar heat collection system and a second steam turbine; the condenser (4) is provided with a condensate pipeline which is communicated with the evaporator (5) through a booster pump (3), then the evaporator (5) is further provided with a steam channel which is communicated with the second steam turbine (10), the second steam turbine (10) is also provided with a low-pressure steam channel which is communicated with the evaporator (5), the compressor (2) is provided with a steam channel which is communicated with the solar heat collection system (7) through a nuclear reactor (6), the solar heat collection system (7) is also provided with a steam channel which is communicated with the steam turbine (1), the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the evaporator (5), and the evaporator (5) is also provided with a low-pressure steam channel which is respectively communicated with the compressor (2) and the condenser (4); the condenser (4) is also provided with a cooling medium channel which is communicated with the outside, the steam turbine (1) is connected with the compressor (2) and transmits power to form a photo-thermal combined cycle steam power device with the same nuclear energy; wherein, or the steam turbine (1) is connected with the compressor (2) and the booster pump (3) and transmits power.
7. In the photo-thermal energy-carrying and nuclear energy-carrying combined cycle steam power plant, in any one of claims 1-6, the communication of a steam channel of a solar heat collection system (7) and a steam turbine (1) is adjusted to be that after the communication of the steam channel of the solar heat collection system (7) and the steam turbine (1), the steam turbine (1) and a reheat steam channel are communicated with the photo-thermal energy-carrying and nuclear energy-carrying combined cycle steam power plant through a nuclear reactor (6).
8. In the photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power plant, in any one of claims 1-6, the communication of a steam channel of a solar heat collection system (7) and a steam turbine (1) is adjusted to be that after the communication of the steam channel of the solar heat collection system (7) and the steam turbine (1), the communication of the steam channel of the solar heat collection system (7) and the steam turbine (1) is carried out, and then the steam turbine (1) and a reheat steam channel are communicated with the photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power plant through the solar heat collection system (7).
9. In the photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power plant, a solar heat collection system (7) is communicated with a steam turbine (1) to adjust the communication of the steam channel and the steam turbine (1) into the communication of the steam channel and the steam turbine (1) of the solar heat collection system (7), and then the steam turbine (1) and a reheat steam channel are communicated with the photo-thermal energy-carrying and same-nuclear-energy combined cycle steam power plant through a nuclear reactor (6) and the solar heat collection system (7).
10. A photo-thermal energy-carrying 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 photo-thermal energy-carrying combined cycle steam power devices in claims 1-9, a condensate pipe line of a condenser (4) is communicated with the booster pump (3) and is adjusted to be communicated with the low-temperature heat regenerator (12) through the second booster pump (11), a steam extraction channel is additionally arranged in the compressor (2) and 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 (3) to form the photo-thermal energy-carrying combined cycle steam power device.
11. A photo-thermal combined cycle steam power plant with the same nuclear energy is characterized in that in any one of the photo-thermal combined cycle steam power plant with the same nuclear energy in claims 1, 3 and 5, a new evaporator and a new diffusion pipe are added, a low-pressure steam channel of a steam turbine (1) is communicated with the evaporator (5) and is regulated to be communicated with the new evaporator (A) through the evaporator (5), the low-pressure steam channel of the evaporator (5) is respectively communicated with a compressor (2) and a condenser (4) and is regulated to be communicated with the new evaporator (A) through the low-pressure steam channel which is respectively communicated with the compressor (2) and the condenser (4), a condensate pipe of the condenser (4) is regulated to be communicated with the new evaporator (A) through the booster pump (3), and then a wet steam channel of the new evaporator (A) is communicated with the evaporator (5) through the new diffusion pipe (B), so as to form the photo-thermal combined cycle steam power plant with the same nuclear energy.
12. A combined cycle steam power plant with photo-thermal energy is characterized in that in the combined cycle steam power plant with photo-thermal energy according to claim 2, a new evaporator and a new diffusion pipe are added, a low-pressure steam channel of a steam turbine (1) is communicated with the evaporator (5) through a high-temperature heat regenerator (8) and is regulated to be communicated with the new evaporator (A) through the high-temperature heat regenerator (8) and the evaporator (5), the low-pressure steam channel of the evaporator (5) is respectively communicated with the compressor (2) and the condenser (4) and is regulated to be communicated with the new evaporator (A) through a low-pressure steam channel which is respectively communicated with the compressor (2) and the condenser (4), a condensate pipe of the condenser (4) is communicated with the evaporator (5) through a high-temperature heat regenerator (3), and then a wet steam channel of the new evaporator (A) is communicated with the evaporator (5) through a new diffusion pipe (B) through a condensate pipe which is communicated with the new evaporator (A), so as to form the combined cycle steam power plant with photo-thermal energy.
13. The photo-thermal energy-carrying combined cycle steam power plant is characterized in that an expansion speed increaser (13) is added to replace a steam turbine (1), a dual-energy compressor (14) is added to replace a compressor (2), a diffuser pipe (15) is added to replace a booster pump (3) in any one of the photo-thermal energy-carrying combined cycle steam power plants in claims 1-12, so that the photo-thermal energy-carrying combined cycle steam power plant is formed.
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