CN107084103A - It is a kind of using carbon dioxide as heat accumulation and do work working medium tower type solar solar-thermal generating system - Google Patents
It is a kind of using carbon dioxide as heat accumulation and do work working medium tower type solar solar-thermal generating system Download PDFInfo
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- CN107084103A CN107084103A CN201710481434.1A CN201710481434A CN107084103A CN 107084103 A CN107084103 A CN 107084103A CN 201710481434 A CN201710481434 A CN 201710481434A CN 107084103 A CN107084103 A CN 107084103A
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- carbon dioxide
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- steam turbine
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Classifications
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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
- F03G6/065—Devices for producing mechanical power from solar energy with solar energy concentrating means having a Rankine cycle
- F03G6/067—Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
-
- 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
- F01K13/00—General layout or general methods of operation of complete plants
-
- 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
- F01K25/10—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 the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/103—Carbon dioxide
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
It is a kind of using carbon dioxide as heat accumulation and do work working medium tower type solar solar-thermal generating system, belong to solar energy thermal-power-generating technical field.The present invention includes tower-type heat collector, hot salt cellar, heat exchanger, cold salt cellar, preheater, high temperature carbon dioxide storage tank, low-temperature carbon dioxide storage tank, steam turbine and generator, and steam turbine is connected with generator；Tower-type heat collector, hot salt cellar, heat exchanger, cold salt cellar and preheater composition collection hot loop, hot melt salt is in heat exchanger by heat exchange to carbon dioxide, high temperature carbon dioxide is finally passed into steam turbine acting, carbon dioxide exchanged using the storage of high temperature carbon dioxide storage tank simultaneously after, steam turbine acting is passed to when being lacked for night or sunlight by high temperature carbon dioxide.Present system facility compact, arrangement is simple, improves power plant thermal efficiency, takes full advantage of the carbon dioxide of trapping, reduces the discharge of carbon dioxide, while directly being generated electricity using carbon dioxide working medium.
Description
Technical field
The present invention relates to a kind of solar light-heat power-generation system, belong to solar energy thermal-power-generating technical field.
Background technology
Solar light-heat power-generation refers to collect solar thermal energy using large scale array parabolic or dish-shaped minute surface, filled by exchanging heat
Offer steam is put, with reference to the technique of traditional steam turbine generator, so as to reach the purpose of generating.Using solar light-heat power-generation skill
Art, it is to avoid expensive silicon wafer opto-electronic conversion technique, can substantially reduce the cost of solar power generation.Moreover, this form
Solar use also has the solar energy of other forms to change incomparable advantage, i.e., the water that solar energy is heated can be with
It is stored in huge container, several hours remain able to drive turbine generator after the sun sets.
Existing tower type solar photo-thermal power generation power station collection hot working fluid is generally water, fused salt, alkali metal etc., and acting working medium is
Water, it is therefore desirable to substantial amounts of water resource, and the abundant area of China's sunlight-heat reaources mostly concentrates on northwest drought water shortage area, by
Region influence solar light-heat power-generation power station cannot carry out practicality in northwest drought water shortage region, therefore be badly in need of providing a kind of
By the use of other media as the solar-thermal generating system of acting working medium, and then meet use of the people to electricity.
The content of the invention
The invention aims to solve above-mentioned technical problem, and then one kind is provided using carbon dioxide as heat accumulation and acting
The tower type solar solar-thermal generating system of working medium.
Technical scheme：
It is a kind of using carbon dioxide as heat accumulation and do work working medium tower type solar solar-thermal generating system include tower-type heat collector,
Hot salt cellar, heat exchanger, cold salt cellar, preheater, high temperature carbon dioxide storage tank, low-temperature carbon dioxide storage tank, steam turbine and generator,
Described steam turbine is connected with generator；
One end of described tower-type heat collector is connected by hot salt cellar with the fused salt entrance point of heat exchanger, described tower collection
The other end of hot device is connected with cold salt cellar, and cold salt cellar is connected by preheater with the fused salt port of export of heat exchanger；
The high temperature carbon dioxide port of export and low-temperature carbon dioxide entrance point are additionally provided with described heat exchanger, described changes
The high temperature carbon dioxide port of export of hot device is bifurcated, wherein a branch road is directly connected with steam turbine, another is communicated with high temperature
Carbon dioxide storage tank, and be finally connected with steam turbine；The low-temperature carbon dioxide arrival end of described heat exchanger and low temperature titanium dioxide
The port of export of carbon storage tank is connected, and the arrival end of low-temperature carbon dioxide storage tank is connected with preheater.
It is preferred that：It is described it is a kind of using carbon dioxide as heat accumulation and the tower type solar solar-thermal generating system for working medium of doing work also
Including compressor and cooler, one end of cooler is connected with steam turbine, and the other end of cooler passes through compressor and preheater
Set up connection.
It is preferred that：Described tower-type heat collector includes the surface-type heat dump being arranged on support tower, surface-type heat dump
Set up and installed by the tube bank of multiple regular arrangements including upper collecting chamber, tube bank and lower header, between upper collecting chamber and lower header.
It is preferred that：The connection of the arrival end of described low-temperature carbon dioxide storage tank and high temperature carbon dioxide storage tank and steam turbine
Pipeline sets up connection.
The invention has the advantages that：The present invention it is a kind of using carbon dioxide be heat accumulation and do work working medium it is tower too
Positive energy solar-thermal generating system can not only save water using carbon dioxide as heat accumulation and the tower type solar for working medium of doing work, and fully
The carbon dioxide of trapping is make use of, the discharge of greenhouse gases is reduced, while directly being generated electricity using carbon dioxide working medium, with current institute
Popular solar energy-steam power electricity generation system is compared, and system equipment is compact, and arrangement is simple, improves power plant thermal efficiency, simultaneously
Compressor power device structure by working medium of carbon dioxide is more compact, and power plant thermal efficiency is high, and without phase transformation, structure letter in system
It is single.
Brief description of the drawings
Fig. 1 is a kind of annexation using carbon dioxide as heat accumulation and the tower type solar solar-thermal generating system for working medium of doing work
Figure；
Fig. 2 is the structure chart of surface-type heat dump；
1- tower-type heat collectors in figure, the hot salt cellars of 2-, 3- heat exchangers, the cold salt cellars of 4-, 5- preheaters, the storage of 6- high temperature carbon dioxides
Tank, 7- low-temperature carbon dioxide storage tanks, 8- steam turbines, 9- generators, 10- compressors, 11- coolers, 12- support towers, 13- surfaces
Formula heat dump, 14- upper collecting chambers, 15- tube banks, 16- lower headers.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, one kind of present embodiment is with carbon dioxide
Tower type solar solar-thermal generating system for heat accumulation and working medium of doing work includes tower-type heat collector 1, hot salt cellar 2, heat exchanger 3, cold salt
Tank 4, preheater 5, high temperature carbon dioxide storage tank 6, low-temperature carbon dioxide storage tank 7, steam turbine 8 and generator 9, described steam turbine
8 are connected with generator 9；One end of described tower-type heat collector 1 is connected by hot salt cellar 2 with the fused salt entrance point of heat exchanger 3, institute
The other end for the tower-type heat collector 1 stated is connected with cold salt cellar 4, and cold salt cellar 4 passes through preheater 5 and the fused salt port of export of heat exchanger 3
Connection；The high temperature carbon dioxide port of export and low-temperature carbon dioxide entrance point, described heat exchange are additionally provided with described heat exchanger 3
The high temperature carbon dioxide port of export of device 3 is bifurcated, wherein a branch road is directly connected with steam turbine 8, another is communicated with high temperature
Carbon dioxide storage tank 6, and be finally connected with steam turbine 8；The low-temperature carbon dioxide arrival end of described heat exchanger 3 and low temperature dioxy
The port of export for changing carbon storage tank 7 is connected, and the arrival end of low-temperature carbon dioxide storage tank 7 is connected with preheater 5.It is arranged such, tower collection
Hot device 1 can be arranged in the reflected light that the sun is absorbed in the heliostat of the surrounding of tower-type heat collector 1 from it, and to tower-type heat collector 1
Interior hot melt salt is heated (low-temperature molten salt is heated to 565 DEG C by surface-type heat dump), and the hot melt salt after heating enters
Hot salt cellar 2, subsequently enters heat exchanger 3, at the same time, and low-temperature carbon dioxide storage tank 7 inputs low temperature titanium dioxide into heat exchanger 3
Carbon, is transmitted to carbon dioxide, high temperature carbon dioxide now passes through heat exchanger 3 in the presence of heat exchanger 3 by the heat for heating salt
High temperature carbon dioxide outlet output, a portion be directly entered steam turbine 8 be used for steam turbine acting, and then realize hair
Electricity, another part for exporting output by the high temperature carbon dioxide of heat exchanger 3 is stored into high temperature carbon dioxide storage tank 6,
When sunlight missing or during night, the part high temperature carbon dioxide in storage tank be directly output to steam turbine be used for do work generating；Through
Cross the hot melt salt after heat exchanger 3 exchanges heat and heat has been given into carbon dioxide, the hot melt salt after heat exchange preheats laggard by preheater 5
Enter cold salt cellar 4, cold salt cellar 4 is the medium (i.e. sloppy heat salt) that tower-type heat collector 1 provides heat transfer；Now tower-type heat collector 1,
Hot salt cellar 2, heat exchanger 3, preheater 5 and cold salt cellar 4 form the loop of a thermal-arrest, and tower-type heat collector 1 absorbs solar energy
Heat, and heat is passed into heat exchanger 3 in the way of medium is transmitted, and it is interior and carbon dioxide storage tank offer in heat exchanger 3
Heat exchange is carried out by the medium of acting working medium of carbon dioxide, this utilization carbon dioxide can have for the power generation operation of working medium
Imitate saving water resource.
Embodiment two：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, one kind of present embodiment is with carbon dioxide
It is a kind of using carbon dioxide as heat accumulation and acting working medium described in the tower type solar solar-thermal generating system of heat accumulation and acting working medium
Tower type solar solar-thermal generating system also include compressor 10 and cooler 11, one end of cooler 11 is connected with steam turbine 8,
The other end of cooler 11 is set up with preheater 5 by compressor 10 and is connected.It is arranged such, the carbon dioxide that steam turbine 8 is discharged
Carbon dioxide is transferred to preheater 5 in the presence of cooler 11 and compressor 10, the carbon dioxide after preheating is directly stored
To low-temperature carbon dioxide storage tank 7, this utilization carbon dioxide is that heat accumulation and the mode of acting working medium can reach higher cycling hot
Efficiency, while this mode takes full advantage of the carbon dioxide of trapping, reduces the discharge of carbon dioxide, while directly utilizing promotion
Remaining carbon dioxide generates electricity as working medium after steam turbine work, can effectively control the discharge degree of carbon dioxide, reduction by two
Carbonoxide improves environment as the principal element of global warming.
Embodiment three：Illustrate present embodiment with reference to Fig. 2, one kind of present embodiment is using carbon dioxide as heat accumulation
And the tower-type heat collector 1 described in the tower type solar solar-thermal generating system of acting working medium includes the surface on support tower 12
Formula heat dump 13, surface-type heat dump 13 includes upper collecting chamber 14, tube bank 15 and lower header 16, between upper collecting chamber 14 and lower header 16
Set up and installed by the tube bank 15 of multiple regular arrangements.It is arranged such, the sunshine reflected by heliostat is directly acted on
The tube bank 15 of even arrangement, and be heated at high temperature the medium fused salt restrained in 15 by the effect of tube bank, upper collecting chamber 14 is with
Header 16 is as the outlet header and entrance header of fused-salt medium, and in the presence of multiple tube banks 15 being evenly arranged, fused salt is situated between
The efficiency of heating surface of matter is improved significantly.
Embodiment four：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, one kind of present embodiment is with carbon dioxide
For heat accumulation and the arrival end and high temperature of the low-temperature carbon dioxide storage tank 7 done work described in the tower type solar solar-thermal generating system of working medium
Carbon dioxide storage tank 6 is set up with the connecting line of steam turbine 8 and connected.It is arranged such, when described enters high temperature carbon dioxide
The heat of the high temperature carbon dioxide of storage tank 6 is directly dumped in low-temperature carbon dioxide storage tank 7 it is impossible to meet during steam turbine acting
Portion, such storing mode effectively utilizes carbon dioxide, it is to avoid the CO2 emission of whole power generation process, mitigates air dirty
Dye, improves environmental quality.
Present embodiment is the exemplary illustration to this patent, does not limit its protection domain, people in the art
Member can also be changed to its part, as long as no the Spirit Essence beyond this patent, all in the protection domain of this patent.
Claims (4)
1. it is a kind of using carbon dioxide as heat accumulation and the tower type solar solar-thermal generating system for working medium of doing work, it is characterised in that：Including
It is tower-type heat collector (1), hot salt cellar (2), heat exchanger (3), cold salt cellar (4), preheater (5), high temperature carbon dioxide storage tank (6), low
Warm carbon dioxide storage tank (7), steam turbine (8) and generator (9), described steam turbine (8) are connected with generator (9)；
One end of described tower-type heat collector (1) is connected by hot salt cellar (2) with the fused salt entrance point of heat exchanger (3), described
The other end of tower-type heat collector (1) is connected with cold salt cellar (4), and cold salt cellar (4) passes through preheater (5) and the fused salt of heat exchanger (3)
The port of export is connected；
The high temperature carbon dioxide port of export and low-temperature carbon dioxide entrance point are additionally provided with described heat exchanger (3), described changes
The high temperature carbon dioxide port of export of hot device (3) is bifurcated, wherein a branch road is directly connected with steam turbine (8), another Zhi Liantong
There is high temperature carbon dioxide storage tank (6), and be finally connected with steam turbine (8)；The low-temperature carbon dioxide entrance of described heat exchanger (3)
End is connected with the port of export of low-temperature carbon dioxide storage tank (7), and arrival end and the preheater (5) of low-temperature carbon dioxide storage tank (7) connect
It is logical.
2. it is according to claim 1 a kind of using carbon dioxide as heat accumulation and the tower type solar photo-thermal power generation system for working medium of doing work
System, it is characterised in that：It is described it is a kind of using carbon dioxide as heat accumulation and the tower type solar solar-thermal generating system for working medium of doing work also
Including compressor (10) and cooler (11), one end of cooler (11) is connected with steam turbine (8), the other end of cooler (11)
Set up and be connected with preheater (5) by compressor (10).
3. it is according to claim 1 or 2 a kind of using carbon dioxide as heat accumulation and the tower type solar photo-thermal hair for working medium of doing work
Electric system, it is characterised in that：Described tower-type heat collector (1) includes the surface-type heat dump being arranged on support tower (12)
(13), surface-type heat dump (13) includes upper collecting chamber (14), tube bank (15) and lower header (16), upper collecting chamber (14) and lower header
(16) set up and installed by the tube bank (15) of multiple regular arrangements between.
4. it is according to claim 1 a kind of using carbon dioxide as heat accumulation and the tower type solar photo-thermal power generation system for working medium of doing work
System, it is characterised in that：The arrival end of described low-temperature carbon dioxide storage tank (7) and high temperature carbon dioxide storage tank (6) and steam turbine
(8) connecting line sets up connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710481434.1A CN107084103A (en) | 2017-06-22 | 2017-06-22 | It is a kind of using carbon dioxide as heat accumulation and do work working medium tower type solar solar-thermal generating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710481434.1A CN107084103A (en) | 2017-06-22 | 2017-06-22 | It is a kind of using carbon dioxide as heat accumulation and do work working medium tower type solar solar-thermal generating system |
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| CN107084103A true CN107084103A (en) | 2017-08-22 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800628A (en) * | 2018-06-22 | 2018-11-13 | 中国科学院过程工程研究所 | A kind of cogeneration system based on solar heat chemical energy storage |
| CN109340066A (en) * | 2018-10-16 | 2019-02-15 | 中国科学院工程热物理研究所 | A kind of supercritical carbon dioxide solar power generation energy storage integrated system |
| CN110319608A (en) * | 2019-07-17 | 2019-10-11 | 哈尔滨锅炉厂有限责任公司 | Utilize the system of tower type solar fused salt collection hot working fluid heating coal-fired boiler hot primary wind |
| CN110332718A (en) * | 2019-07-17 | 2019-10-15 | 哈尔滨锅炉厂有限责任公司 | Utilize the system of groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind |
| CN111238063A (en) * | 2020-03-17 | 2020-06-05 | 中国华能集团清洁能源技术研究院有限公司 | Sludge and slime drying device with energy stored by solar molten salt and operation method |
| CN113153675A (en) * | 2020-01-22 | 2021-07-23 | 电力规划总院有限公司 | Power generation system |
| CN114109524A (en) * | 2021-10-27 | 2022-03-01 | 中国长江三峡集团有限公司 | Carbon dioxide Carnot battery-based cold-heat-electricity-water combined supply system and operation method |
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| CN110332718A (en) * | 2019-07-17 | 2019-10-15 | 哈尔滨锅炉厂有限责任公司 | Utilize the system of groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind |
| CN113153675A (en) * | 2020-01-22 | 2021-07-23 | 电力规划总院有限公司 | Power generation system |
| CN111238063A (en) * | 2020-03-17 | 2020-06-05 | 中国华能集团清洁能源技术研究院有限公司 | Sludge and slime drying device with energy stored by solar molten salt and operation method |
| CN114109524A (en) * | 2021-10-27 | 2022-03-01 | 中国长江三峡集团有限公司 | Carbon dioxide Carnot battery-based cold-heat-electricity-water combined supply system and operation method |
| CN114109524B (en) * | 2021-10-27 | 2023-07-14 | 中国长江三峡集团有限公司 | Cold-heat-electricity-water combined supply system based on carbon dioxide Carnot battery and operation method |
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