CN113530773A - Power generation system and method for operating same - Google Patents

Power generation system and method for operating same Download PDF

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Publication number
CN113530773A
CN113530773A CN202010312784.7A CN202010312784A CN113530773A CN 113530773 A CN113530773 A CN 113530773A CN 202010312784 A CN202010312784 A CN 202010312784A CN 113530773 A CN113530773 A CN 113530773A
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China
Prior art keywords
heat
heater
transfer medium
heat transfer
power generation
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CN202010312784.7A
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CN113530773B (en
Inventor
肖刚
孙安苇
倪明江
岑可法
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Zhejiang University ZJU
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Zhejiang University ZJU
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
    • F03G6/068—Devices for producing mechanical power from solar energy with solar energy concentrating means having other power cycles, e.g. Stirling or transcritical, supercritical cycles; combined with other power sources, e.g. wind, gas or nuclear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F02G1/055—Heaters or coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2254/00—Heat inputs
    • F02G2254/10—Heat inputs by burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2254/00—Heat inputs
    • F02G2254/30—Heat inputs using solar radiation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2254/00—Heat inputs
    • F02G2254/40—Heat inputs using heat accumulators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention relates to the field of power generation, in particular to a power generation system and an operation method thereof, wherein the power generation system comprises a heater, a heat exchanger and a heat exchanger, wherein the heater is used for heating a heat transfer medium; a heat storage tank connected to the heater and capable of storing heat energy of the heat transfer medium heated by the heater; an external heat engine, an inlet end of which is connected to both the heater and the heat storage tank and can be driven by the heated heat transfer medium; the heat source heats the heat transfer medium, the heat energy of the heat transfer medium is transferred to the external heat engine, and the external heat engine absorbs the heat of the heat transfer medium and applies work to drive the generator to generate electricity externally, so that the stability of the power generation system is improved.

Description

Power generation system and method for operating same
Technical Field
The invention relates to the field of power generation, in particular to a power generation system and an operation method thereof.
Background
Due to the problems of non-regeneration, low utilization rate, environmental pollution and the like of fossil fuels, power generation by renewable energy sources is the mainstream production mode of electric power. However, the power generated by renewable power sources such as wind power generation and solar power generation has the characteristics of intermittency, randomness and fluctuation, and has no regulating capability.
The external heating engine is an engine which realizes heat-work conversion by utilizing an external heat source. The external heating type engine is connected with the generator, and the engine runs to drive the generator to generate electricity externally.
The external heating engine has the outstanding advantage of good energy adaptability due to the external heating characteristic, and can use fossil energy such as coal, gasoline, diesel oil and natural gas, biomass energy such as wood chips, straws, alcohol and methane, and low-grade energy such as waste heat and solar energy.
The traditional external heating engine adopts a direct heating mode of a single heat source, such as solar energy condensation heating, the situation of unstable heat source occurs, and the power generation is unstable; the problem of uneven heating of the tube wall can occur by adopting direct combustion heating.
The stability of the external heat engine is low, and the stability of a power generation system of the external heat engine is further low.
In addition, when the primary heat source is excessive, the residual primary heat source after heating the external heat engine cannot be utilized in the power generation system, which causes energy waste.
Disclosure of Invention
In view of the above problems, the present invention provides a power generation system and an operation method thereof, which are used to improve the stability and energy utilization rate of the power generation system.
The invention provides a power generation system, which comprises a heater, a heat pipe and a heat pipe, wherein the heater is used for heating a heat transfer medium; a heat storage tank connected to the heater and capable of storing heat energy of the heat transfer medium heated by the heater; an external heat engine, an inlet end of which is connected to both the heater and the heat storage tank and can be driven by the heated heat transfer medium; and a generator connected to the external heat engine and capable of generating electricity by being driven by the external heat engine.
In this technical scheme, through the setting of heat storage tank, can realize the make full use of heat energy to can use through the cooperation of heat storage tank and heater, increase power generation system's stability.
In a preferred embodiment of the present invention, the heater includes: the main heater takes a solar radiation heat source or industrial waste heat as a heat source; and the auxiliary heater is connected to the downstream of the main heater and takes gas such as natural gas, methane, liquefied gas and the like as a heat source.
In the technical scheme, a solar radiation heat source can be realized through a solar energy condensation system, industrial waste heat comes from the ferrous metallurgy industry, and the energy is green and environment-friendly and is beneficial to energy conservation and emission reduction; the gas is used as a heat source of the auxiliary heater, the regulation and control are convenient, the outlet temperature of the medium is controlled, and compared with a power generation system which utilizes a single heat source for heating, the power generation system provided by the invention has higher stability.
In a preferred embodiment of the present invention, the heat storage tank is connected downstream of the main heater, and is capable of storing heat energy of the heat transfer medium heated by the main heater.
In a preferred embodiment of the present invention, an inlet end of the external heat engine is connected to the heat storage tank, the main heater, and the auxiliary heater, and is capable of receiving the heated heat transfer medium from any one of the heat storage tank, the main heater, and the auxiliary heater.
In the technical scheme, the external heating engine can utilize a heat source provided by any one or combination of the heat storage tank, the main heater and the auxiliary heater, so that the stability of the system is guaranteed, energy sources can be reasonably distributed and utilized, and more diversified choices are provided for the utilization of the energy sources.
In a preferred technical solution of the present invention, the method further comprises: and the regenerative heater is positioned at the upstream of the heater, is connected with the outlet of the external heating engine and is used for preheating the heat transfer medium.
In the technical scheme, the heat transfer medium is preheated, so that the energy consumption in the subsequent heating step can be reduced, and the heat transfer medium can be heated to the target temperature more quickly.
In a preferred technical solution of the present invention, the method further comprises: and the circulating booster pump is connected between the working medium purification device and the regenerative heater and provides power for the circulation of the heat transfer medium.
In a preferred technical solution of the present invention, the method further comprises: and the working medium purifying device is positioned at the upstream of the heater and is used for purifying and decontaminating the heat transfer medium in the medium flow path.
In the technical scheme, the heat transfer medium is purified and purified by the working medium purifying device and then enters the whole system, so that the impurities in the heat transfer medium are prevented from corroding and deteriorating the external heating engine.
The invention provides an operation method of a power generation system, which is characterized by comprising the following steps: a purification step of purifying the heat transfer medium; a preheating step of preheating the heat transfer medium; a heating step of heating the heat transfer medium; and a power generation step of converting the heat energy of the heat transfer medium into electric energy.
In a preferred technical solution of the present invention, the method further comprises: a heat storage step of storing heat energy of the heat transfer medium heated by the heating step; and a heat release step of releasing the thermal energy stored in the heat storage step for performing the power generation step.
In the technical scheme, the heat storage step and the heat release step are arranged, so that the waste of energy can be avoided, and the operation stability of the power generation system is improved.
In a preferred technical solution of the present invention, the method further comprises: and a heat transfer medium circulation step of recovering the heat transfer medium after the power generation step and performing the preheating step again.
In the technical scheme, the heat transfer medium circulation can enable the power generation efficiency to be more efficient, and the operation cost of the power generation system is reduced.
Drawings
FIG. 1 is a schematic diagram of a power generation system provided in accordance with an embodiment of the present invention;
FIG. 2 is a schematic flow path of a heat transfer medium in the power generation system of FIG. 1;
FIG. 3 is a schematic view of the flow path of the heat transfer medium according to the second embodiment of the present invention;
FIG. 4 is a schematic view of the flow path of the heat transfer medium according to the third embodiment of the present invention;
fig. 5 is a schematic view of the flow path of the heat transfer medium according to the fourth embodiment of the present invention.
Description of reference numerals: 1. a source of heat transfer medium; 2. a working medium purification device; 3. starting a valve; 4. a media cooling valve; 5. a circulating booster pump; 6. a regenerative heater; 7. a main heat source; 8. a main heater; 9. a working medium path I valve; 10. a working medium circuit II valve; 11. a heat storage valve; 12. a heat storage tank; 13. a first valve; 14. a second valve; 15. an auxiliary heater inlet valve; 16. a main heater bypass valve; 17. an auxiliary heat source; 18. an auxiliary heater; 19. starting a bypass valve; 20. an externally heated engine inlet valve; 21. an external heating engine heater; 22. an external heat engine; 23. a generator; 24. a medium flow path.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the power generation system provided in the present embodiment includes:
the device comprises a heat transfer medium source 1, a working medium purifying device 2, a starting valve 3, a medium cooling valve 4, a circulating booster pump 5, a regenerative heater 6, a heater, a working medium first valve 9, a working medium second valve 10, a heat storage valve 11, a heat storage tank 12, a first valve 13, a second valve 14, an auxiliary heater inlet valve 15, a main heater bypass valve 16, a starting bypass valve 19, an external heating engine inlet valve 20, an external heating engine heater 21, an external heating engine 22 and a generator 23.
Wherein a heat transfer medium source 1 for supplying a heat transfer medium.
Wherein, the heater comprises a main heater 8 and an auxiliary heater 18; a main heater 8 for supplying heat to the heat transfer medium; the auxiliary heater 18 is used for carrying out auxiliary heat supply on the heat transfer medium, the main heater 8 takes the main heat source 7 as a heat source, and the main heat source 7 can adopt a solar radiation heat source or industrial waste heat; the auxiliary heater 18 uses the auxiliary heat source 17 as a heat source, and the auxiliary heat source 17 can adopt natural gas, methane, liquefied gas and other fuel gases.
The heat storage tank 12 is configured to store thermal energy of the heat transfer medium heated by the main heater 8, and can release the thermal energy as required.
The external heat engine 22 can receive heat energy of the heat transfer medium and work externally, and specifically, the external heat engine 22 includes an external heat engine heater 21, and the external heat engine heater 21 can directly receive heat energy of the heat transfer medium.
Wherein the circulating booster pump 5 can provide power for the flow of the heat transfer medium.
Among them, the generator 23 can generate electric power by being driven by the external heat type engine 22.
The regenerative heater 6 can preheat a heat transfer medium to accelerate power generation efficiency and reduce energy consumption of the heater.
The working medium purification device 2 can purify a heat transfer medium to avoid the corrosion and heat transfer deterioration of the external heating engine caused by impurities in the heat transfer medium.
The heat transfer medium can be molten salt, heat transfer oil or water vapor.
Hereinafter, the configuration of the power generation system will be described in detail, and it should be noted that the connection mentioned hereinafter means the connection through the medium flow path 24 unless otherwise stated, and specifically, the medium flow path 24 is a pipe having a certain heat resistance, such as a metal pipe.
The heat transfer medium source 1, the working medium purification device 2, the circulation booster pump 5, the regenerative heater 6, the main heater 8 are connected in sequence, the starting valve 3 is arranged on the medium flow path 24 between the working medium purification device 2 and the circulation booster pump 5, wherein after the starting valve 3 is opened, the heat transfer medium is purified by the working medium purification device 2, preheated by the regenerative heater 6 and enters the main heater 8 for heating under the driving of the circulation booster pump 5.
Further, the outlet of the main heater 8 is divided into three branches, wherein the first branch is connected with the external heat engine 22 and can directly provide heat energy for the external heat engine 22, and a first working medium path valve 9 is arranged on the first branch; the second branch is connected with the heat storage tank 12 and can store the heat energy of the heat transfer medium in the heat storage tank 12, and a heat storage valve 11 is arranged on the second branch; the third branch is connected with an auxiliary heater 18 to further heat the heat transfer medium, and a second valve 10 of the working medium circuit is arranged on the third branch.
Further, an external heat engine inlet valve 20 is arranged between the inlet of the external heat engine 22 and the working medium circuit-valve 9.
Further, an auxiliary heater inlet valve 15 is arranged between the inlet of the auxiliary heater 18 and the working medium circuit two-valve 10.
Further, the outlet of the heat storage tank 12 is divided into two branches, wherein one branch is connected with the regenerative heater 6, the heat storage and release valve 13 is arranged on the branch, and the other branch is connected to the medium flow path 24 between the second valve 10 of the working medium path and the inlet valve 15 of the auxiliary heater and is provided with a second valve 14.
Further, an outlet of the auxiliary heater 18 is connected to an external heat engine inlet valve 20, and a pipe connected to a medium flow path 24 between the start valve 3 and the circulation booster pump 5 is provided to a medium flow path 24 between the outlet of the auxiliary heater 18 and the external heat engine inlet valve 20, and the start bypass valve 19 is provided to the pipe.
Further, a pipe connected to the medium flow path 24 between the outlet of the auxiliary heater 18 and the inlet valve 20 of the external heat engine is provided on the medium flow path 24 between the two working fluid path valves 10 and the inlet valve 15 of the auxiliary heater, and the main heater bypass valve 16 is provided on the pipe.
Further, an outlet of the external heat engine 22 is connected to the regenerative heater 6.
Further, the regenerative heater 6 is connected to a medium flow path 24 connected between the start valve 3 and the circulation booster pump 5 by a pipe, and the medium cooling valve 4 is provided on the pipe.
In the following four embodiments, the operation methods of the present invention in four cases will be specifically described by taking as examples that the external heat engine 22 is selected from the stirling engine, the main heat source 7 is selected from the solar energy, the heat transfer medium is selected from the steam, and the auxiliary heat source 17 is selected from the gas heat source.
Example one
With reference to fig. 1 and 2, when sunlight is sufficient and the system is stably operated:
the starting valve 3, the starting bypass valve 19, the second valve 14 and the working medium circuit second valve 10 are closed,
opening the medium cooling valve 4, the external heating engine inlet valve 20, the heat storage valve 11, the first valve 13 and the first working medium circuit valve 9.
The circulating booster pump 5 transmits feed water to the regenerative heater 6 for preheating, and the heated medium enters the main heater 8 for further heating and then is divided into two paths:
after one path enters the heat storage tank 12, the heat of the path is absorbed by the heat storage tank 12;
the other path enters an external heat engine 22, and an external heat engine heater 21 absorbs the heat of the heat transfer medium;
then, the two heat transfer media enter the regenerative heater 6.
The heat transfer medium heats the water transmitted by the circulating booster pump 5 in the regenerative heater 6; the drain water of the regenerative heater 6 flows back to the inlet of the circulating booster pump 5 for circulation;
the above process is repeated.
Example two
With reference to fig. 1 and 3, when sunlight is insufficient and energy of the thermal storage tank is sufficient, the system operates stably:
opening the medium cooling valve 4, the heat storage valve 11, the second valve 14, the main heater bypass valve 16 and the external heat engine inlet valve 20;
the starting valve 3 is closed, the bypass valve 19 is started, the first working medium path valve 9, the second working medium path valve 10, the first valve 13 and the auxiliary heater inlet valve 15 are started.
The circulating booster pump 5 transmits feed water to the regenerative heater 6 for preheating, and the heated medium enters the main heater 8 for further heating;
at this time, the solar heat source as the main heat source 7 is insufficient, and the heat transfer medium is heated to form a steam-water mixture;
further enters the heat storage tank 12 to continue absorbing heat to reach a predetermined temperature and turns into high-temperature steam. The high-temperature water vapor enters the stirling engine as the external heat engine 22, and the external heat engine heater 21 of the stirling engine absorbs heat of the high-temperature water vapor, which is converted into low-temperature water vapor by the stirling engine.
The path of the low-temperature water vapor is consistent with the embodiment.
EXAMPLE III
With reference to fig. 1 and 4, when sunlight is insufficient and energy of the heat storage tank is insufficient, the system operates stably:
opening the medium cooling valve 4, the external heat type engine inlet valve 20, the heat storage valve 11, the second valve 14 and the auxiliary heater inlet valve 15;
and closing the first working medium circuit valve 9, the first valve 13, the second working medium circuit valve 10, the main heater bypass valve 16, the starting valve 3 and the starting bypass valve 19.
The circulating booster pump 5 transmits the feed water to the regenerative heater 6 for preheating; then the mixture enters a solar heater as a main heater 8 to be heated and evaporated;
at this time, the solar heat source serving as the main heat source 7 is insufficient, the water vapor enters the heat storage tank 12 to continuously absorb heat, and the heat of the heat storage tank 12 is insufficient to enable the water vapor to reach the specified temperature;
the gas heat source as the auxiliary heat source 17 heats the working medium again through the gas heater to make the water vapor reach the specified temperature;
the high-temperature water vapor enters an external heating type engine heater 21 of the Stirling engine; the stirling engine heater will absorb heat from the heat transfer medium;
the path of the heat transfer medium is consistent with the embodiment.
Example four
With reference to fig. 1 and 5, when sunlight is insufficient and the heat storage tank has no heat storage, the system is stable:
opening a medium cooling valve 4, an external heating engine inlet valve 20, a working medium second valve 10 and an auxiliary heater inlet valve 15;
the system comprises a closing starting valve 3, a starting bypass valve 19, a first working medium circuit valve 9, a heat storage valve 11, a first valve 13, a second valve 14 and a main heater bypass valve 16.
The circulating booster pump 5 transmits the feed water to the regenerative heater 6 for preheating, the preheated steam-water mixture enters the solar heater for heating and evaporation, at the moment, the solar heat source serving as the main heat source 7 is insufficient, and the fuel gas heat source supplements a heating working medium through the fuel gas heater serving as the auxiliary heater 18, so that the steam reaches the specified temperature and becomes high-temperature steam;
high-temperature water vapor enters the external heating type engine heater 21, the external heating type engine heater 21 of the external heating type engine 22 absorbs the heat of the high-temperature water vapor, and the high-temperature water vapor is changed into low-temperature water vapor;
the path of the low-temperature water vapor is consistent with the embodiment.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A power generation system, comprising:
a heater for heating the heat transfer medium;
a heat storage tank connected to the heater and capable of storing heat energy of the heat transfer medium heated by the heater;
an external heat engine, an inlet end of which is connected to both the heater and the heat storage tank and can be driven by the heated heat transfer medium; and
and the generator is connected with the external heat engine and can generate electricity under the driving of the external heat engine.
2. The power generation system of claim 1, wherein the heater comprises:
the main heater takes a solar radiation heat source or industrial waste heat as a heat source; and
and the auxiliary heater is connected to the downstream of the main heater and takes gas such as natural gas, methane, liquefied gas and the like as a heat source.
3. An electricity generating system as claimed in claim 2, wherein the thermal storage tank is connected downstream of the main heater and is capable of storing thermal energy of the heat transfer medium heated by the main heater.
4. An electricity generating system as claimed in claim 2 or 3, wherein the inlet side of the external heat engine is connected to each of the thermal storage tank, the primary heater and the secondary heater and is capable of receiving the heated heat transfer medium from any of the thermal storage tank, the primary heater and the secondary heater.
5. The power generation system of claim 4, further comprising:
and the regenerative heater is positioned at the upstream of the heater, is connected with the outlet of the external heating engine and is used for preheating the heat transfer medium.
6. The power generation system of claim 5, further comprising:
and the circulating booster pump is connected between the working medium purification device and the regenerative heater and provides power for the circulation of the heat transfer medium.
7. The power generation system of any of claims 1-3, 5, 6, further comprising:
and the working medium purifying device is positioned at the upstream of the heater and is used for purifying and decontaminating the heat transfer medium in the medium flow path.
8. A method of operating a power generation system, comprising:
a purification step of purifying the heat transfer medium;
a preheating step of preheating the heat transfer medium;
a heating step of heating the heat transfer medium; and
and a power generation step of converting the heat energy of the heat transfer medium into electric energy.
9. The method of operating a power generation system of claim 8, further comprising:
a heat storage step of storing heat energy of the heat transfer medium heated by the heating step; and
a heat release step of releasing the thermal energy stored in the heat storage step for performing the power generation step.
10. The method of operating a power generation system according to claim 8 or 9, further comprising:
and a heat transfer medium circulation step of recovering the heat transfer medium after the power generation step and performing the preheating step again.
CN202010312784.7A 2020-04-20 2020-04-20 Power generation system and method of operating the same Active CN113530773B (en)

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US5228293A (en) * 1992-07-06 1993-07-20 Mechanical Technology Inc. Low temperature solar-to-electric power conversion system
CN102128149A (en) * 2011-02-25 2011-07-20 上海齐耀动力技术有限公司 Phosgene-complementary disc-type sterling solar power generation device
CN201963504U (en) * 2011-03-14 2011-09-07 张建城 Medium low-temperature Stirling generating arranged of groove solar
CN103161703A (en) * 2013-03-08 2013-06-19 南京航空航天大学 Solar energy-biomass energy thermoelectricity association system and energy utilization method thereof
CN105298768A (en) * 2015-10-29 2016-02-03 广西盛业建筑节能技术股份有限公司 Solar power generating system based on Spring engine
CN207018151U (en) * 2017-03-31 2018-02-16 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 A kind of Stirling solar electric generating system waste heat utilization structure
CN207161278U (en) * 2017-03-31 2018-03-30 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 A kind of heat storage type Stirling electricity generation system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228293A (en) * 1992-07-06 1993-07-20 Mechanical Technology Inc. Low temperature solar-to-electric power conversion system
CN102128149A (en) * 2011-02-25 2011-07-20 上海齐耀动力技术有限公司 Phosgene-complementary disc-type sterling solar power generation device
CN201963504U (en) * 2011-03-14 2011-09-07 张建城 Medium low-temperature Stirling generating arranged of groove solar
CN103161703A (en) * 2013-03-08 2013-06-19 南京航空航天大学 Solar energy-biomass energy thermoelectricity association system and energy utilization method thereof
CN105298768A (en) * 2015-10-29 2016-02-03 广西盛业建筑节能技术股份有限公司 Solar power generating system based on Spring engine
CN207018151U (en) * 2017-03-31 2018-02-16 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 A kind of Stirling solar electric generating system waste heat utilization structure
CN207161278U (en) * 2017-03-31 2018-03-30 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 A kind of heat storage type Stirling electricity generation system

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