CN209145783U - A kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system - Google Patents
A kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system Download PDFInfo
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- CN209145783U CN209145783U CN201821844124.8U CN201821844124U CN209145783U CN 209145783 U CN209145783 U CN 209145783U CN 201821844124 U CN201821844124 U CN 201821844124U CN 209145783 U CN209145783 U CN 209145783U
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- 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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Abstract
The utility model relates to a kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation systems.Including tower light and heat collection system, supercritical carbon dioxide Brayton cycle electricity generation system, heat reservoir and steam Rankine cycle electricity generation system；Supercritical carbon dioxide Brayton cycle electricity generation system is recycled as top-level cycle, steam Rankine cycle electricity generation system as bottom；Heat reservoir is located at bottom circulation；When working by day, supercritical carbon dioxide Brayton cycle electricity generation system is run under stable operating condition, and the fuse salt that the waste heat from tail gas of turbine gas-turbine is used to heat bottom steam circulation carries out heat accumulation；When hot salt cellar liquid level reaches the 95% of design highest liquid level, bottom steam circulation is opened, and first floor system enters the generating state in heat accumulation；When night or cloudy day, steam drive bottom steam turbine power generation is generated in fuse salt steam generator using the fuse salt in the hot tank of fuse salt, fuse salt after cooling is back in the cold tank of fuse salt, and the Brayton cycle at top is in shutdown status at this time.
Description
Technical field
The utility model belongs to solar energy thermal-power-generating technical field, and in particular to a kind of supercritical carbon dioxide Bretton is multiple
Folded circulating solar energy heat generating system.
Background technique
Compared with photovoltaic power generation, solar energy thermal-power-generating is a kind of power generation skill that can be matched with cheap heat reservoir
Art can be stablized, lasting output power, be it is a kind of can flexible modulation power supply.To keep grid stability, flexibility is adjusted
Installation need to be maintained at certain proportion, and solar energy thermal-power-generating causes extensive concern.It is next in order to improve the overall efficiency of system
For the oriented higher heat-collecting temperature development trend of solar-thermal generating system.Tower type solar energy thermal power generation uses the optically focused side of point focusing
Formula possesses higher light concentrating times, it is easier to reach higher heat-collecting temperature.As the temperature rises when more than 700 DEG C, vapor
Chemical reaction between metal material obviously aggravates, therefore traditional steam Rankine cycle can not meet above-mentioned condition again.It is super
Critical carbon dioxide Brayton cycle has running temperature high, and cycle efficieny is high, the advantages such as compact-sized.Carbon dioxide is simultaneously
A kind of inert gas is small to the equipment corrosion of system.But it is based on supercritical carbon dioxide Brayton cycle tower type solar light
Heat generating system still suffers from some technical problems and challenge:
1) in the circulatory system of identical installed capacity, the working medium flow of supercritical carbon dioxide Brayton cycle is tradition
The several times of steam Rankine cycle.So that supercritical system pressure loss in piping sharply increases, the cycle efficieny of serious systemic, simultaneously
Need the heat exchanger that matched volume is bigger.
It 2) can not entire 200 ~ 700 DEG C of wide running temperatures again using the system of single-stage supercritical carbon dioxide Brayton cycle
Section all keeps a kind of optimal working condition.Supercritical carbon dioxide Brayton cycle is only in higher running temperature section
More obvious advantage can be shown, its performance may not have apparent advantage compared with conventional vapor power cycle in low-temperature range.This
The delivery temperature of the gas-turbine of outer supercritical carbon dioxide Brayton cycle is higher, tail gas of gas turbine after regenerator backheat,
It is directly cooling by cooler, a large amount of thermal loss is caused, system thermal efficiency is reduced.
3) there is unstability at 600 DEG C or more due to fuse salt, conventional melt salt is unable to satisfy heat accumulation at higher temperature and wants
It asks.There is presently no heat accumulation maturation energy storage schemes at higher temperature, while also limiting supercritical carbon dioxide in tower power station
In application.
Utility model content
In view of the above-mentioned problems, the utility model proposes one kind in conjunction with the advantages of two kinds of circulations of Bretton and steam Rankine
Supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system.
The utility model using supercritical carbon dioxide Brayton cycle as top-level cycle, make by conventional vapor Rankine cycle
For bottom circulation；Using supercritical carbon dioxide heat transfer, fuse salt heat accumulation solution, power cycle efficiency is improved.
A kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system includes tower light and heat collection system
2, the tower light and heat collection system 2 includes tower heliostat and heat absorption tower；
It further include Brayton cycle electricity generation system 1, heat reservoir 3 and steam Rankine cycle electricity generation system 4；
The Brayton cycle electricity generation system 1 includes compressor 11, turbine gas-turbine 12, the first generator 13, overcritical
The carbon dioxide side of carbon dioxide fused salt heat exchanging device 14, regenerator 15, cooler 16, supercritical carbon dioxide working medium pump 17 and super
Critical carbon dioxide heat dump；Working medium in Brayton cycle electricity generation system 1 is supercritical carbon dioxide working medium；It is described overcritical
Carbon dioxide heat dump is located at the heat absorbing end of heat absorption tower；
The heat reservoir 3 includes the cold tank 31 of fuse salt, the fuse salt hot melting of tank 32, second salt pump 34, the first fuse salt
Pump the fuse salt side of 35, the fuse salt side of fuse salt steam generator 46 and supercritical carbon dioxide fused salt heat exchanging device 14；Heat accumulation
System 3 has energy storage and Peak Load Adjustment；
The steam Rankine cycle electricity generation system 4 includes steam turbine 41, the second generator 42, steam condenser 43, gives
The steam side of water pump 44, the first valve 45 and fuse salt steam generator 46；
The supercritical carbon dioxide Brayton cycle electricity generation system 1 is used as top-level cycle, the steam Rankine cycle hair
Electric system 4 is recycled as bottom；The heat reservoir 3 is located at bottom circulation；Wherein supercritical carbon dioxide realize heat transmission function,
Fuse salt realizes heat storage function；
In supercritical carbon dioxide Brayton cycle electricity generation system 1, the inlet temperature of turbine gas-turbine 12 is 550~750
DEG C, inlet pressure be 20~35MPa, the delivery temperature of the outlet of turbine gas-turbine 12 is 400~600 DEG C, pressure at expulsion be 5~
15MPa；In steam Rankine cycle electricity generation system 4, the Stream temperature degree of steam turbine 41 is 350~550 DEG C, main vapour pressure 8~
13MPa, reheat steam temperature is 350~550 DEG C, reheated steam pressure is 1~3MPa, 150~300 DEG C of feed temperature；Melting
The operating temperature of the hot tank 32 of salt is 290~550 DEG C；
When working by day, supercritical carbon dioxide is completed to do work after the heating of tower heat dump, into turbine gas-turbine 12,
12 waste heat from tail gas of turbine gas-turbine heats fuse salt in supercritical carbon dioxide fused salt heat exchanging device 14 simultaneously, is stored in
In the hot tank 32 of fuse salt；According to the fused salt reserves of the hot tank 32 of fuse salt, to determine whether to start steam Rankine cycle；When hot salt cellar
When liquid level reaches the 95% of design highest liquid level, starting the second melting salt pump 34 opens the second fuse salt valve 33, fused salt is melting
Water is heated in salt steam generator 46 and generates steam, and pushing turbine 41 does work.
When night or cloudy day, steam is generated in fuse salt steam generator 46 using the fuse salt in the hot tank 32 of fuse salt and is driven
Dynamic bottom steam turbine 41 generates electricity, and fuse salt reflux after cooling is stored in the cold tank 31 of fuse salt, at this time the Bretton at top
Cycle generating system 1 is in shutdown status.
The technical solution further limited is as follows:
The output shaft of the turbine gas-turbine 12 of the Brayton cycle electricity generation system 1 respectively with the first generator 13 and calm the anger
The drive shaft of machine 11 is connected；The outlet of turbine gas-turbine 12 passes through the supercritical carbon dioxide working medium pump 17 being sequentially connected in series, surpasses and face
The carbon dioxide side of boundary's carbon dioxide fused salt heat exchanging device 14,15 high temperature side of regenerator be connected to cooler 16 compressor 11 into
Mouthful, the outlet of compressor 11 is connected to turbine gas-turbine 12 with carbon dioxide heat dump by the low temperature side of concatenated regenerator 15
Import；
The drive shaft phase of the output shaft and the second generator 42 of the steam turbine 41 of the steam Rankine cycle electricity generation system 4
Even, steam turbine 41, steam condenser 43, feed pump 44, the first valve 45, the steam side of fuse salt steam generator 46 and the
Two valves 47 are sequentially connected in series forming circuit；
The inlet communication of the cold tank 31 of fuse salt the outlet of the fuse salt side of fuse salt steam generator 46, the cold tank of fuse salt
31 outlet is connected to supercritical carbon dioxide fused salt with the first fuse salt valve 36 by the first melting salt pump 35 being sequentially connected in series
The input end of the fuse salt side of heat exchanger 14；
The inlet communication of the hot tank 32 of fuse salt the outlet end of the fuse salt side of supercritical carbon dioxide fused salt heat exchanging device 14；
The outlet of the hot tank 32 of fuse salt is connected to fuse salt steam hair with the second fuse salt valve 33 by concatenated second melting salt pump 34
The import of the fuse salt side of raw device 46.
The supercritical carbon dioxide heat dump is heat absorption tube heat sucker.
The supercritical carbon dioxide Brayton cycle is for simple basic Brayton cycle or backheat Brayton cycle or again
Hot Brayton cycle or cooling during rolling reheating backheat Brayton cycle.
The steam condenser 43 is water-cooled condenser or air-cooled condenser.
The steam turbine 41 is multi-cylinder turbine.
The tower heliostat is the tower heliostat of tracking mode, including high reflectance mirror surface, mirror support bracket, servo control
System and tracking drive mechanism processed.
The advantageous effects of the utility model embody in the following areas:
1. the tower type solar energy thermal power generation technical solution of supercritical carbon dioxide Brayton cycle and double tank fused salt accumulation of heats,
It has not been reported yet.With the tower type solar energy thermal power generation technology of traditional double tank fused salt accumulation of heats based on vapor Rankine cycle
It compares, the technical solution of the utility model is recycled using supercritical carbon dioxide Bretton as top, and it is bright to overcome vapor
Agree the temperature limiting of circulation, (the such as larger than 300W/m when there is solar irradiation2) effectively improve solar energy photoelectric conversion effect
Rate.Compared with traditional tower type solar energy thermal power generation technology based on supercritical carbon dioxide Brayton cycle, the utility model
Technical solution using water vapour Rankine as the bottom cycle of supercritical carbon dioxide Brayton cycle, by two class thermodynamic cycles
Be effectively combined, realizes and have complementary advantages.Brayton cycle worst hot case high efficiency and steam Rankine cycle is utilized
Middle low temperature feature, while the thermal loss of turbine tail gas of gas turbine discharge is reduced, make up the generating efficiency for improving system significantly.
2. the operating mode of the technical solution of the utility model has novelty.When there is solar irradiation (such as larger than
300W/m2), supercritical carbon dioxide Brayton cycle and water vapour Rankine cycle cooperate, and improve the heat to power output of system
Efficiency.When night or when without solar irradiation, the energy of double tank salt melting systems storage is utilized to drive the Rankine cycle of bottom water vapour
Work.This unique operating mode effectively improves the efficiency of solar energy utilization while guaranteeing systems technology reliability,
Shorten investment return period.
3. the technical solution of the utility model is using fuse salt as bottom steam Rankine cycle energy-accumulating medium, effective solution
The problem of the heat accumulating type selecting difficulty for conventional Brayton cycle of having determined.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system.
Fig. 2 is Brayton cycle electricity generation system schematic diagram.
Fig. 3 is heat reservoir schematic diagram.
Fig. 4 is the utility model steam Rankine cycle electricity generation system schematic diagram.
Serial number in upper figure: supercritical carbon dioxide Brayton cycle electricity generation system 1, tower light and heat collection system 2, heat accumulation system
System 3, steam Rankine cycle electricity generation system 4, compressor 11, turbine gas-turbine 12, the first generator 13, supercritical carbon dioxide
The cold tank 31 of fused salt heat exchanging device 14, regenerator 15, cooler 16, supercritical carbon dioxide working medium pump 17, fuse salt, the hot tank of fuse salt
32, the second melting salt pump 34, first melts salt pump 35, the second fuse salt valve 33, the first fuse salt valve 36, steam turbine 41, the
Two generators 42, steam condenser 43, feed pump 44, fuse salt steam generator 46, the first valve 45, the second valve 47.
Specific embodiment
It is practical new to this by embodiment below with reference to figure in order to further illustrate the characteristics of the utility model and function
Type is described in detail.
Referring to Fig. 1, a kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system includes that Bretton follows
Ring electricity generation system 1, tower light and heat collection system 2, heat reservoir 3 and steam Rankine cycle system 4.
Tower light and heat collection system 2 includes tower heliostat and heat absorption tower；Tower heliostat is the tower heliostat of tracking mode,
Including high reflectance mirror surface, mirror support bracket, servo-control system and tracking drive mechanism.
Referring to fig. 2, Brayton cycle electricity generation system 1 includes compressor 11, turbine gas-turbine 12, the first generator 13, surpasses
Critical carbon dioxide fused salt heat exchanging device 14, regenerator 15, cooler 16, supercritical carbon dioxide working medium pump 17 and overcritical dioxy
Change carbon heat dump.Working medium in Brayton cycle electricity generation system 1 is supercritical carbon dioxide working medium.Supercritical carbon dioxide heat absorption
Device is heat absorption tube heat sucker, and is located at the heat absorbing end of heat absorption tower.The output of the turbine gas-turbine 12 of Brayton cycle electricity generation system 1
Axis is connected with the drive shaft of the first generator 13 and compressor 11 respectively；The outlet of turbine gas-turbine 12 is super by what is be sequentially connected in series
Critical carbon dioxide working medium pump 17, the carbon dioxide side of supercritical carbon dioxide fused salt heat exchanging device 14,15 high temperature side of regenerator and
Cooler 16 is connected to the import of compressor 11, the low temperature side and titanium dioxide that the outlet of compressor 11 passes through concatenated regenerator 15
Carbon heat dump is connected to the import of turbine gas-turbine 12；Supercritical carbon dioxide Brayton cycle is that simple basic Bretton follows
Ring.
Referring to Fig. 3, heat reservoir 3 is molten including the cold tank 31 of fuse salt, the hot tank 32 of fuse salt, the second fuse salt valve 33, second
Melt salt pump 34, first and melts salt pump 35, the first fuse salt valve 36, the fuse salt side of fuse salt steam generator 46 and fuse salt suction
Hot device；Heat reservoir 3 has energy storage and Peak Load Adjustment.
Referring to fig. 4, steam Rankine cycle electricity generation system 4 includes steam turbine 41, the second generator 42, steam condenser
43, the steam side of feed pump 44, the first valve 45 and fuse salt steam generator 46；Steam turbine 41 is multi-cylinder turbine；It steams
Vapour condenser 43 is water-cooled condenser.The output shaft and the second generator of the steam turbine 41 of steam Rankine cycle electricity generation system 4
42 drive shaft is connected, steam turbine 41, steam condenser 43, feed pump 44, the first valve 45, fuse salt steam generator 46
Steam side be sequentially connected in series forming circuit.The fuse salt import of fuse salt steam generator 46 is connected by the second fuse salt valve 33
The hot tank 32 of fuse salt export, the inlet communication of the hot tank 32 of fuse salt the fuse salt of supercritical carbon dioxide fused salt heat exchanging device 14
The outlet end of side；The fuse salt of fuse salt steam generator 46 exports the import for the cold tank 31 of fuse salt of connecting, the cold tank of fuse salt
31 outlet is connected to supercritical carbon dioxide fused salt with the first fuse salt valve 36 by the first melting salt pump 35 being sequentially connected in series
The input end of the fuse salt side of heat exchanger 14.
Brayton cycle electricity generation system 1 is used as top-level cycle, and steam Rankine cycle electricity generation system 4 is recycled as bottom；Storage
Hot systems 3 are located at bottom circulation；Wherein supercritical carbon dioxide realizes that heat transmission function, fuse salt realize heat storage function.
In Brayton cycle electricity generation system 1, the inlet temperature of turbine gas-turbine 12 is 700 DEG C, pressure 23.86MPa, thoroughly
The delivery temperature of the outlet of flat gas-turbine 12 is 560 DEG C, pressure 8.96MPa；In steam Rankine cycle electricity generation system 4, steam
The Stream temperature degree of turbine 41 is 540 DEG C, pressure 13MPa, and reheat steam temperature is 540 DEG C of pressure 1.8MPa, feed temperature 222
℃.The operating temperature range of the hot tank 32 of fuse salt is 290~550 DEG C.
The specific working principle is as follows:
In Brayton cycle electricity generation system 1, supercritical carbon dioxide is pressed and delivered to tower heat dump through compressor 11,
Carbon dioxide absorbs heat heating in absorbing pipe, enters turbine gas-turbine from heat dump output with 700 DEG C of supercritical carbon dioxide
12 complete expansion work, driven generator 13 and compressor 11.The tail gas that expansion work is completed in turbine gas-turbine 12 enters
Cold salt in the cold tank 31 of fuse salt is heated to 550 DEG C by supercritical carbon dioxide fused salt heat exchanging device 14, supercritical carbon dioxide warp
Compressor 11, which is reentered, through regenerator 15, cooler 16 after cooling completes a complete circulation.When night or yin
Under the conditions of rain, Brayton cycle electricity generation system 1 is in shutdown status.
About steam Rankine cycle electricity generation system 4, under the conditions of daytime, irradiation was preferable, stored up according to hot 32 fused salt of tank of fuse salt
Amount, to determine whether to start steam Rankine cycle electricity generation system 4.When the liquid level in the hot tank 32 of fuse salt reaches design highest liquid level
95% when, starting the second melting salt pump 34 opens the second fuse salt valve 33, fused salt heats in fuse salt steam generator 46
Water generates steam, and steam turbine 41 is pushed to do work, and completes circulation；When the liquid level in the hot tank 32 of fuse salt is lower than design highest liquid level
95% when, steam off Rankine cycle electricity generation system 4, through supercritical carbon dioxide fused salt heat exchanging device 14 heat hot salt it is direct
It is stored in the hot tank 32 of fuse salt.When night or cloudy day, using the fuse salt in the hot tank 32 of fuse salt in fuse salt steam generation
Device 46 generates steam drive bottom steam turbine power generation, and fuse salt reflux after cooling is stored in the cold tank 31 of fuse salt,
About heat reservoir 3, irradiation on daytime preferably under the conditions of, 290 DEG C of fuse salt in the cold tank 31 of fuse salt is through the
One melting salt pump 35 is delivered in supercritical carbon dioxide fused salt heat exchanging device 14, fuse salt heat absorption heating, with 550 DEG C of fuse salt
Output, back in the hot tank 32 of fuse salt.Under the conditions of night or rainy weather, the first fuse salt valve 36 is closed, it is molten to open second
Melt salt valve 33 and the second melting salt pump 34,550 DEG C of fuse salt in the hot tank 32 of fuse salt is delivered to through the second melting salt pump 34
Fuse salt steam generator 46, after fuse salt cools down in fuse salt steam generator 46, back in the cold tank 31 of fuse salt.
The utility model is described above in conjunction with attached drawing, but the utility model is not limited to above-mentioned specific reality
Mode is applied, those skilled in the art are under the enlightenment of the utility model, the case where not departing from the utility model aims
Under, it improves and finely tunes and belong within the protection of the utility model.
Claims (7)
1. a kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system, including tower light and heat collection system
(2), the tower light and heat collection system (2) includes tower heliostat and heat absorption tower；It is characterized by:
It further include Brayton cycle electricity generation system (1), heat reservoir (3) and steam Rankine cycle electricity generation system (4)；
The Brayton cycle electricity generation system (1) includes compressor (11), turbine gas-turbine (12), the first generator (13), surpasses
The carbon dioxide side of critical carbon dioxide fused salt heat exchanging device (14), regenerator (15), cooler (16), supercritical carbon dioxide work
Matter pumps (17) and supercritical carbon dioxide heat dump；Working medium in Brayton cycle electricity generation system (1) is supercritical carbon dioxide
Working medium；The supercritical carbon dioxide heat dump is located at the heat absorbing end of heat absorption tower；
The heat reservoir (3) includes the cold tank of fuse salt (31), the hot tank of fuse salt (32), the second melting salt pump (34), first molten
Melt the melting of salt pump (35), the fuse salt side of fuse salt steam generator (46) and supercritical carbon dioxide fused salt heat exchanging device (14)
Salt side；Heat reservoir (3) has energy storage and Peak Load Adjustment；
The steam Rankine cycle electricity generation system (4) includes steam turbine (41), the second generator (42), steam condenser
(43), the steam side of feed pump (44), the first valve (45) and fuse salt steam generator (46)；
The supercritical carbon dioxide Brayton cycle electricity generation system (1) is used as top-level cycle, the steam Rankine cycle power generation
System (4) is recycled as bottom；The heat reservoir (3) is located at bottom circulation；Wherein supercritical carbon dioxide realizes heat transfer function
Energy, fuse salt realize heat storage function；
In supercritical carbon dioxide Brayton cycle electricity generation system (1), the inlet temperature of turbine gas-turbine (12) is 550~750
DEG C, inlet pressure be 20~35MPa, the delivery temperature of the outlet of turbine gas-turbine (12) is 400~600 DEG C, pressure at expulsion 5
~15MPa；In steam Rankine cycle electricity generation system (4), the Stream temperature degree of steam turbine (41) is 350~550 DEG C, main vapour pressure
8~13MPa, reheat steam temperature is 350~550 DEG C, reheated steam pressure is 1~3MPa, 150~300 DEG C of feed temperature；It is molten
The operating temperature for melting the hot tank of salt (32) is 290~550 DEG C；
When working by day, supercritical carbon dioxide is completed to do work after the heating of tower heat dump, into turbine gas-turbine (12), together
When turbine gas-turbine (12) waste heat from tail gas fuse salt is heated in supercritical carbon dioxide fused salt heat exchanging device (14), store
In the hot tank of fuse salt (32)；According to the fused salt reserves of the hot tank of fuse salt (32), to determine whether to start steam Rankine cycle；When
When hot salt cellar liquid level reaches the 95% of design highest liquid level, the second fuse salt valve (33) is opened in the second melting salt pump (34) of starting,
Fused salt heating water in fuse salt steam generator (46) generates steam, pushes steam turbine (41) acting；
When night or cloudy day, steam is generated in fuse salt steam generator (46) using the fuse salt in the hot tank of fuse salt (32) and is driven
Dynamic bottom steam turbine (41) power generation, fuse salt reflux after cooling are stored in the cold tank of fuse salt (31), at this time the cloth at top
Thunder cycle generating system (1) is in shutdown status.
2. a kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system according to claim 1,
Be characterized in that: the output shaft of the turbine gas-turbine (12) of the Brayton cycle electricity generation system (1) respectively with the first generator
(13) it is connected with the drive shaft of compressor (11)；The outlet of turbine gas-turbine (12) is by being sequentially connected in series supercritical carbon dioxide
Working medium pump (17), the carbon dioxide side of supercritical carbon dioxide fused salt heat exchanging device (14), the high temperature side of regenerator (15) and cooling
Device (16) is connected to the import of compressor (11), and the outlet of compressor (11) passes through concatenated regenerator (15) low temperature side and dioxy
Change the import that carbon heat dump is connected to turbine gas-turbine (12)；
The output shaft of the steam turbine (41) of the steam Rankine cycle electricity generation system (4) and the drive shaft of the second generator (42)
It is connected, the outlet of steam turbine (41), steam condenser (43), feed pump (44), the first valve (45), fuse salt steam generation
The steam side and the second valve (47) of device (46) are sequentially connected in series forming circuit；
The inlet communication of the cold tank of fuse salt (31) the outlet of the fuse salt side of fuse salt steam generator (46), the cold tank of fuse salt
(31) outlet is connected to overcritical titanium dioxide with the first fuse salt valve (36) by the first melting salt pump (35) being sequentially connected in series
The input end of the fuse salt side of carbon fused salt heat exchanging device (14)；
The inlet communication of the hot tank of fuse salt (32) the outlet end of the fuse salt side of supercritical carbon dioxide fused salt heat exchanging device (14)；
The outlet of the hot tank of fuse salt (32) is connected to fuse salt with the second fuse salt valve (33) by concatenated second melting salt pump (34)
The import of the fuse salt side of steam generator (46).
3. a kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system according to claim 1,
Be characterized in that: the supercritical carbon dioxide heat dump is heat absorption tube heat sucker.
4. a kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system according to claim 1,
Be characterized in that: the supercritical carbon dioxide Brayton cycle is for simple basic Brayton cycle or backheat Brayton cycle or again
Hot Brayton cycle or cooling during rolling reheating backheat Brayton cycle.
5. a kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system according to claim 1,
Be characterized in that: the steam condenser (43) is water-cooled condenser or air-cooled condenser.
6. a kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system according to claim 1,
Be characterized in that: the steam turbine (41) is multi-cylinder turbine.
7. a kind of supercritical carbon dioxide Bretton autocascade cycle solar heat power generation system according to claim 1,
Be characterized in that: the tower heliostat is the tower heliostat of tracking mode, including high reflectance mirror surface, mirror support bracket, servo
Control system and tracking drive mechanism.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822745A (en) * | 2019-10-21 | 2020-02-21 | 山西大学 | By using supercritical CO2Ventilation air catalytic oxidation device with solar heat collection, heat storage and heating functions |
| CN111287813A (en) * | 2020-02-26 | 2020-06-16 | 中国华能集团清洁能源技术研究院有限公司 | Solar supercritical carbon dioxide triple-cycle power generation system and method |
| CN111911371A (en) * | 2020-06-29 | 2020-11-10 | 东方电气集团东方汽轮机有限公司 | Efficient compact multifunctional disc type light-gathering power generation system |
| CN114575950A (en) * | 2022-03-10 | 2022-06-03 | 中国科学院上海应用物理研究所 | Heat storage type peak regulation power station |
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2018
- 2018-11-09 CN CN201821844124.8U patent/CN209145783U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822745A (en) * | 2019-10-21 | 2020-02-21 | 山西大学 | By using supercritical CO2Ventilation air catalytic oxidation device with solar heat collection, heat storage and heating functions |
| CN111287813A (en) * | 2020-02-26 | 2020-06-16 | 中国华能集团清洁能源技术研究院有限公司 | Solar supercritical carbon dioxide triple-cycle power generation system and method |
| CN111911371A (en) * | 2020-06-29 | 2020-11-10 | 东方电气集团东方汽轮机有限公司 | Efficient compact multifunctional disc type light-gathering power generation system |
| CN111911371B (en) * | 2020-06-29 | 2022-09-27 | 东方电气集团东方汽轮机有限公司 | Efficient compact multifunctional disc type light-gathering power generation system |
| CN114575950A (en) * | 2022-03-10 | 2022-06-03 | 中国科学院上海应用物理研究所 | Heat storage type peak regulation power station |
| CN114575950B (en) * | 2022-03-10 | 2023-04-25 | 中国科学院上海应用物理研究所 | Heat-storage type peak regulation power station |
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