CN106287657A - Supercritical carbon dioxide Bretton and organic Rankine combined cycle thermal power generation system - Google Patents
Supercritical carbon dioxide Bretton and organic Rankine combined cycle thermal power generation system Download PDFInfo
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- CN106287657A CN106287657A CN201610825296.XA CN201610825296A CN106287657A CN 106287657 A CN106287657 A CN 106287657A CN 201610825296 A CN201610825296 A CN 201610825296A CN 106287657 A CN106287657 A CN 106287657A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
- F22G1/02—Steam superheating characterised by heating method with heat supply by hot flue gases from the furnace of the steam boiler
- F22G1/04—Steam superheating characterised by heating method with heat supply by hot flue gases from the furnace of the steam boiler by diverting flow or hot flue gases to separate superheaters operating in reheating cycle, e.g. for reheating steam between a high-pressure turbine stage and an intermediate turbine stage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/32—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- 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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of supercritical carbon dioxide Bretton and organic Rankine combined cycle thermal power generation system, including afterheat heat exchanger, low-level (stack-gas) economizer, supercritical carbon dioxide Brayton cycle electricity generation system and organic rankine cycle system, this system is capable of the cogeneration of supercritical carbon dioxide Brayton cycle electricity generation system and organic rankine cycle system, it is capable of the cascade utilization of boiler smoke heat in supercritical carbon dioxide Brayton cycle electricity generation system simultaneously, ensure air preheater safe operation, can effectively utilize the waste heat of the weary gas of turbine in supercritical carbon dioxide Brayton cycle electricity generation system simultaneously.
Description
Technical field
The invention belongs to the efficient field of thermal power of supercritical carbon dioxide, relate to a kind of supercritical carbon dioxide Bretton
With organic Rankine combined cycle thermal power generation system.
Background technology
The height of generating set efficiency suffers from material impact, China's energy storage to development and the environmental conservation of national economy
Standby composition feature determines thermal power generation unit and remains the main force of China's power industry in coming few decades, therefore, carries
The efficiency of high thermal power generation unit is particularly important in China.
The steam parameter improving supercritical unit can effectively improve the efficiency of thermal power generation system.By main steam condition
Improve to 700 DEG C, the generating efficiency of steam Rankine cycle unit can be improved to about 50%.But, current 700 DEG C of high temperature close
Gold copper-base alloy development difficulty is big, and cost is high, and problem of materials becomes the maximum bottleneck of 700 DEG C of generation technologies.In order to avoid material side
The technical bottleneck in face, sight is transferred to new type power blood circulation by scholars one after another, to realizing the lifting of generating efficiency.
Through the substantial amounts of early-stage Study of scholars and demonstration, generally believe that supercritical carbon dioxide Brayton Cycle system is pole at present
The new ideas advanced power systems of tool potentiality.This has mainly due to supercritical carbon dioxide, and energy density is big, heat transfer efficiency
High, supercritical carbon dioxide Brayton cycle efficient power generation system can reach conventional steaming in 620 DEG C of temperature ranges
The efficiency that vapour Rankine cycle is 700 DEG C, avoids the restriction of novel high temperature alloy, and equipment size is less than the steam engine of same parameter
Group, economy is the best.
But, supercritical carbon dioxide Brayton cycle efficient power generation system as a kind of novel advanced electricity generation system,
Still some problems are had to have to be solved.Especially for the supercritical carbon dioxide Brayton cycle for thermal power generation, they are two years old
Carbonoxide boiler and steam boiler have marked difference, carbon dioxide residual heat from boiler fume cascade utilization to be the most urgently to be resolved hurrily asking
Topic.
Electricity generating principle due to carbon dioxide and the difference of water physical property, carbon dioxide Brayton cycle and steam Rankine cycle
Also there is notable difference, in supercritical carbon dioxide Brayton cycle thermal power generation system, carbon dioxide boiler inlet working medium
Temperature exceeds 100-200 DEG C than same parameter steam boiler, it means that when the supercritical carbon dioxide boiler of 600 DEG C of grades is still adopted
During by the version of conventional supercritical fluid steam boiler, in economizer, Temperature of Working can reach 500-550 DEG C, the cigarette at economizer
Temperature then can be up to more than 600 DEG C, and the air preheater more rational smoke inlet temperature after economizer should be 400
DEG C, this partial fume waste heat which results in 600 DEG C-400 DEG C cannot utilize, and boiler thermal output is low, has had a strong impact on unit
Generating efficiency.Additionally, too high flue-gas temperature can cause the damage of air preheater and denitration device normally to work.Cause
This, propose a kind of combined cycle being capable of supercritical carbon dioxide boiler smoke heat cascade utilization, reduces boiler exhaust gas
Temperature, improves boiler and system effectiveness is extremely necessary.
But understand through investigation, the openest achievement and patent are followed about with supercritical carbon dioxide Bretton
The content of the combined cycle thermal power generation system based on ring is little, more rarely has patent to relate to by the way of combined cycle and solves
The problem of supercritical carbon dioxide boiler smoke heat cascade utilization, prior art is it cannot be guaranteed that carbon dioxide boiler hollow simultaneously
The safe operation of air preheater, it is impossible to effectively utilize the weary gas of turbine in supercritical carbon dioxide Brayton cycle electricity generation system
Waste heat.
Summary of the invention
It is an object of the invention to the shortcoming overcoming above-mentioned prior art, it is provided that a kind of supercritical carbon dioxide Bretton
With organic Rankine combined cycle thermal power generation system, this system is capable of supercritical carbon dioxide Brayton cycle electricity generation system
With the cogeneration of organic rankine cycle system, it is capable of pot in supercritical carbon dioxide Brayton cycle electricity generation system simultaneously
The cascade utilization of kiln gas heat, it is ensured that air preheater safe operation, can effectively utilize supercritical carbon dioxide simultaneously
The waste heat of the weary gas of turbine in Brayton cycle electricity generation system.
For reaching above-mentioned purpose, supercritical carbon dioxide Bretton of the present invention and organic Rankine combined cycle firepower
Electricity generation system includes afterheat heat exchanger, low-level (stack-gas) economizer, supercritical carbon dioxide Brayton cycle electricity generation system and organic Rankine
Blood circulation；
Superheater is positioned at the back-end ductwork of boiler in supercritical carbon dioxide Brayton cycle electricity generation system, and low temperature saves
Coal device in supercritical carbon dioxide Brayton cycle electricity generation system between economizer and air preheater, low-level (stack-gas) economizer
Entrance is connected with the outlet of compressor in supercritical carbon dioxide Brayton cycle electricity generation system, the outlet of low-level (stack-gas) economizer with
In supercritical carbon dioxide Brayton cycle electricity generation system, the entrance of the cold side of regenerator is connected, the entrance of the hot side of afterheat heat exchanger
And outlet respectively with the outlet of the hot side of regenerator in supercritical carbon dioxide Brayton cycle electricity generation system and the entrance of precooler
Be connected, the entrance of the cold side of afterheat heat exchanger and outlet respectively with ORC delivery side of pump in organic rankine cycle system and ORC turbine
Entrance be connected.
Organic rankine cycle system includes ORC pump, ORC condenser, ORC turbine and circulating generator, the outlet of ORC turbine
Being connected with the entrance of ORC condenser, the outlet of ORC condenser is connected with the entrance of ORC pump, the output shaft of ORC turbine with
The drive shaft of circulating generator is connected.
Supercritical carbon dioxide Brayton cycle electricity generation system include precooler, compressor, turbine, electromotor, regenerator,
Boiler and the economizer being located in boiler, water-cooling wall, superheater and air preheater；
The outlet of precooler is connected with the entrance of compressor, and the outlet of the cold side of regenerator is successively through economizer, boiler
Water-cooling wall and superheater are connected with the entrance of turbine, and the entrance of the outlet of turbine side hot with regenerator is connected, compressor, thoroughly
Flat and generator coaxle is arranged, superheater, economizer, low-level (stack-gas) economizer and air preheater are along the direction that flue gas circulates successively cloth
Putting, the outlet of air preheater is connected with the air intake of boiler.
SCR denitration device, wherein, low-level (stack-gas) economizer, SCR denitration device and air preheat is also set in the back-end ductwork of boiler
The direction that device circulates along flue gas is sequentially arranged.
Boiler is π type boiler.
The method have the advantages that
Supercritical carbon dioxide Bretton of the present invention and organic Rankine combined cycle thermal power generation system are specifically
During operation, in supercritical carbon dioxide Brayton cycle electricity generation system, the working medium of compressor output enters in low-level (stack-gas) economizer
Row heating, then enters back in regenerator, and wherein low-level (stack-gas) economizer is positioned at supercritical carbon dioxide Brayton cycle and generates electricity and is
In system between high-temperature economizer and air preheater, it is achieved boiler smoke in supercritical carbon dioxide Brayton cycle electricity generation system
The cascade utilization of heat, is lowered into the temperature of flue gas in air preheater by low-level (stack-gas) economizer, it is ensured that air is pre-simultaneously
Hot device safe operation, and reduce the temperature of boiler discharge flue gas, improve the thermal efficiency and the generating efficiency of system of boiler.Simultaneously
In supercritical carbon dioxide Brayton cycle electricity generation system, the working medium of regenerator hot side output enters in afterheat heat exchanger and carries out
Heat exchange, provides thermal source for organic rankine cycle system, thus effectively utilizes the waste heat of the weary gas of turbine, it is achieved supercritical titanium dioxide
Carbon Bretton cycle generating system and the cogeneration of organic rankine cycle system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Wherein, 1 be compressor, 2 for regenerator, 3 for boiler, 31 for economizer, 32 for water-cooling wall, 33 for superheater, 34
For low-level (stack-gas) economizer, 35 be air preheater, 4 be turbine, 5 be electromotor, 6 be afterheat heat exchanger, 7 be precooler, 8 for ORC
Turbine, 9 be circulating generator, 10 be ORC condenser, 11 for ORC pump.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail:
With reference to Fig. 1, supercritical carbon dioxide Bretton of the present invention and organic Rankine combined cycle thermal power generation system
System includes afterheat heat exchanger 6, low-level (stack-gas) economizer 34, supercritical carbon dioxide Brayton cycle electricity generation system and organic Rankine bottoming cycle
System；Superheater 33 is positioned at the back-end ductwork of boiler 3 in supercritical carbon dioxide Brayton cycle electricity generation system, and low temperature saves
Coal device 34 is in supercritical carbon dioxide Brayton cycle electricity generation system between economizer 31 and air preheater 35, and low temperature saves
The entrance of coal device 34 is connected with the outlet of compressor 1 in supercritical carbon dioxide Brayton cycle electricity generation system, and low temperature saves coal
The outlet of device 34 is connected with the entrance of the cold side of regenerator 2 in supercritical carbon dioxide Brayton cycle electricity generation system, and waste heat changes
The entrance of the hot hot side of device 6 and outlet respectively with the going out of the hot side of regenerator 2 in supercritical carbon dioxide Brayton cycle electricity generation system
Mouthful and the entrance of precooler 7 be connected, the entrance of the cold side of afterheat heat exchanger 6 and outlet respectively with in organic rankine cycle system
The outlet of ORC pump 11 and the entrance of ORC turbine 8 are connected.
Organic rankine cycle system includes ORC pump 11, ORC condenser 10, ORC turbine 8 and circulating generator 9, ORC turbine
The outlet of 8 is connected with the entrance of ORC condenser 10, and the outlet of ORC condenser 10 is connected with the entrance of ORC pump 11, and ORC is saturating
The output shaft of flat 8 is connected with the drive shaft of circulating generator 9.
Supercritical carbon dioxide Brayton cycle electricity generation system includes precooler 7, compressor 1, turbine 4, electromotor 5, returns
Hot device 2, boiler 3 and the economizer 31 being located in boiler 3, water-cooling wall 32, superheater 33 and air preheater 35；Precooler 7
Outlet be connected with the entrance of compressor 1, the outlet of the cold side of regenerator 2 successively through economizer 31, the water-cooling wall 32 of boiler 3 and
Superheater 33 is connected with the entrance of turbine 4, and the entrance of the outlet of turbine 4 side hot with regenerator 2 is connected, compressor 1, turbine
4 and electromotor 5 coaxially arranged, side that superheater 33, economizer 31, low-level (stack-gas) economizer 34 and air preheater 35 circulate along flue gas
To being sequentially arranged, the outlet of air preheater 35 is connected with the air intake of boiler 3.
SCR denitration device, wherein, low-level (stack-gas) economizer 34, SCR denitration device and air is also set in the back-end ductwork of boiler 3
The direction that preheater 35 circulates along flue gas is sequentially arranged.
The work process of supercritical carbon dioxide Brayton cycle electricity generation system is: the weary gas of turbine 4 output enters backheat
The hot side heat release of device 2, and its cold side working medium is heated, then in afterheat heat exchanger 6, waste heat is delivered to organic Rankine and follows
In the working medium of loop systems, entering in compressor 1 and boost after the cooling of the most pre-cooled device 7, the working medium of compressor 1 output enters
Low-level (stack-gas) economizer 34 in preheat, the working medium after preheating sequentially enter regenerator 2 cold side heat absorption, boiler 3 afterbody cigarette
Being heated to design temperature in economizer 31, water-cooling wall 32 and superheater 33 in road, the High Temperature High Pressure working medium after heating enters thoroughly
Flat 4 actings, and realize generating by electromotor 5, working medium after expansion work, becomes weary gas in turbine 4, and so far working medium achieves
One complete closed cycle.
The work process of organic rankine cycle system is: the organic working medium after ORC pump 11 boosts enters afterheat heat exchanger 6
Cold side in be heated to cyclic design temperature, the organic working medium after heating be admitted in ORC turbine 8 acting, and by circulation send out
Motor 9 generates electricity, and the weary gas of ORC turbine 8 output enters in ORC pump 11 after environment discharges used heat through ORC condenser 10 and boosts,
So far organic working medium achieves a complete organic Rankine bottoming cycle.
Low-level (stack-gas) economizer 34 is arranged between economizer 31 and air preheater 35, and low-level (stack-gas) economizer 34 effectively utilizes province's coal
Between device 31 to air preheater 35, (as a example by 600 DEG C of units, middle temperature flue gas is that temperature is about 600 to the heat of middle temperature flue gas
DEG C to the flue gas of 400 DEG C), both achieve the cascade utilization of fume afterheat in boiler 3, in turn ensure that air preheater 35 fume side
Inlet temperature is in rational scope.
Additionally, in the present invention, afterheat heat exchanger 6 is arranged between the hot side outlet of regenerator 2 and precooler 7 entrance, fills
Divide the weary gas waste heat utilizing regenerator 2 to fail to make full use of that organic working medium is heated, it is achieved the step of turbine 4 weary gas waste heat
Utilize, reduce the heat release of precooler 7 external environment, further increase the efficiency of system.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not limited to this
Bright, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included in the present invention
Protection domain within.
Claims (5)
1. a supercritical carbon dioxide Bretton and organic Rankine combined cycle thermal power generation system, it is characterised in that include
Afterheat heat exchanger (6), low-level (stack-gas) economizer (34), supercritical carbon dioxide Brayton cycle electricity generation system and organic Rankine bottoming cycle system
System；
Superheater (33) is positioned at the back-end ductwork of boiler (3) in supercritical carbon dioxide Brayton cycle electricity generation system, and low
Temperature economizer (34) is positioned at economizer (31) and air preheater (35) in supercritical carbon dioxide Brayton cycle electricity generation system
Between, the entrance of low-level (stack-gas) economizer (34) and the outlet of compressor (1) in supercritical carbon dioxide Brayton cycle electricity generation system
It is connected, the outlet of low-level (stack-gas) economizer (34) and regenerator (2) cold side in supercritical carbon dioxide Brayton cycle electricity generation system
Entrance be connected, the entrance of afterheat heat exchanger (6) hot side and outlet generate electricity with supercritical carbon dioxide Brayton cycle respectively
In system, the outlet of regenerator (2) hot side and the entrance of precooler (7) are connected, the entrance of afterheat heat exchanger (6) cold side and going out
Mouth is connected with the outlet of ORC pump (11) in organic rankine cycle system and the entrance of ORC turbine (8) respectively.
Supercritical carbon dioxide Bretton the most according to claim 1 and organic Rankine combined cycle thermal power generation system,
It is characterized in that, organic rankine cycle system includes ORC pump (11), ORC condenser (10), ORC turbine (8) and circulating generator
(9), the outlet of ORC turbine (8) is connected with the entrance of ORC condenser (10), the outlet of ORC condenser (10) and ORC pump
(11) entrance is connected, and the output shaft of ORC turbine (8) is connected with the drive shaft of circulating generator (9).
Supercritical carbon dioxide Bretton the most according to claim 1 and organic Rankine combined cycle thermal power generation system,
It is characterized in that, supercritical carbon dioxide Brayton cycle electricity generation system includes precooler (7), compressor (1), turbine (4), sends out
Motor (5), regenerator (2), boiler (3) and the economizer (31) being located in boiler (3), water-cooling wall (32), superheater (33)
And air preheater (35)；
The outlet of precooler (7) is connected with the entrance of compressor (1), and the outlet of regenerator (2) cold side is successively through economizer
(31), water-cooling wall (32) and superheater (33) be connected with the entrance of turbine (4), the outlet of turbine (4) and regenerator (2) hot side
Entrance be connected, compressor (1), turbine (4) and electromotor (5) are coaxially arranged, superheater (33), economizer (31), low temperature
The direction that economizer (34) and air preheater (35) circulate along flue gas is sequentially arranged, the outlet of air preheater (35) and boiler
(3) air intake is connected.
Supercritical carbon dioxide Bretton the most according to claim 3 and organic Rankine combined cycle thermal power generation system,
It is characterized in that, in the back-end ductwork of boiler (3), also set SCR denitration device, wherein, low-level (stack-gas) economizer (34), SCR denitration device
And the direction that air preheater (35) circulates along flue gas is sequentially arranged.
Supercritical carbon dioxide Bretton the most according to claim 1 and organic Rankine combined cycle thermal power generation system,
It is characterized in that, boiler (3) is π type boiler.
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Cited By (11)
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| CN106984167A (en) * | 2017-05-25 | 2017-07-28 | 华能国际电力股份有限公司 | A kind of oxygen-eliminating device for supercritical carbon dioxide Brayton cycle electricity generation system |
| CN107131016A (en) * | 2017-04-19 | 2017-09-05 | 华北电力大学 | Supercritical CO2Combine coal-fired thermal power generation system with organic Rankine bottoming cycle |
| CN108613170A (en) * | 2018-03-14 | 2018-10-02 | 西安交通大学 | A kind of supercritical carbon dioxide coal generating system and operation method |
| CN108916847A (en) * | 2018-07-13 | 2018-11-30 | 西安热工研究院有限公司 | Using the heat convection supercritical carbon dioxide boiler of large scale flue gas recirculation |
| CN110905611A (en) * | 2019-11-28 | 2020-03-24 | 中南大学 | Combined supply system based on organic Rankine cycle and supercritical carbon dioxide cycle |
| CN111811168A (en) * | 2019-04-12 | 2020-10-23 | 浙江大学 | Printed circuit board type heat regenerator and Brayton cycle system |
| CN112128070A (en) * | 2020-09-24 | 2020-12-25 | 北京前沿动力科技股份有限公司 | Solar photo-thermal carbon dioxide Brayton cycle system of ORC (organic Rankine cycle) intercooling compressor |
| CN113107622A (en) * | 2021-04-27 | 2021-07-13 | 中国能源建设集团广东省电力设计研究院有限公司 | Efficient Brayton-Rankine cycle flexible power generation system |
| CN114060216A (en) * | 2021-11-25 | 2022-02-18 | 西安热工研究院有限公司 | Compressed gas energy storage and chemical energy storage method and system based on synthetic ammonia |
| CN114320497A (en) * | 2020-10-10 | 2022-04-12 | 河南科技大学 | Supercritical carbon dioxide gas cooling and recycling device for Brayton cycle power generation system |
| CN115750005A (en) * | 2022-11-17 | 2023-03-07 | 中国核动力研究设计院 | Combined cycle system integrating heat supply, power generation and refrigeration |
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