CN104912666B - Disc type solar energy photo-thermal and natural gas combined generating system - Google Patents
Disc type solar energy photo-thermal and natural gas combined generating system Download PDFInfo
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- CN104912666B CN104912666B CN201510315275.9A CN201510315275A CN104912666B CN 104912666 B CN104912666 B CN 104912666B CN 201510315275 A CN201510315275 A CN 201510315275A CN 104912666 B CN104912666 B CN 104912666B
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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
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Abstract
The invention discloses a kind of disc type solar energy photo-thermal and natural gas combined generating system, including gas turbine generating system, waste heat boiler, disc type solar energy photothermal deformation system, steam turbine.Steam turbine and the second generator are connected, and gas turbine smoke evacuation system is connected with exhaust-heat boiler flue gas and afterburning system, and the main-steam outlet of waste heat boiler boiler circuit and the intake system of steam turbine are connected, and the moisturizing of whole system is directly entered condenser.Natural gas power system and disc type solar energy solar-thermal generating system are organically combined together by the present invention, common to generate electricity, meanwhile, can also external steam supply as needed.This combined generating system can adjust electric load, to meet the needs of supply of electric power, alleviate power supply pressure, the consumption of combustion gas is reduced, solves the problems, such as that disc type solar energy solar-thermal generating system night is not easy energy storage again, and, reduce cost input, meanwhile this electricity generation system can also continuously be run throughout the year, so as to improve the whole economic efficiency of project.
Description
Technical field
The present invention relates to electricity generation system, more particularly to a kind of disc type solar energy photo-thermal and natural gas combined generating system.
Background technology
It is one of most stable of distributed energy supply mode that natural gas, which generates electricity, and outstanding cold, heat and electricity triple supply electricity generation system can
Fuel gas generation efficiency is brought up to more than 95%.From the point of view of World Developed Countries and some country in Southeast Asia's Experience in Development, development
Distributed gas electricity generation system is to realize the only way of energy-saving and emission-reduction and energy supply sustainable development, have efficiently, energy-conservation,
Emission reduction, environmental protection, improve energy supply security, electric power and gas supply peak load shifting and promote numerous excellent such as recycling economy development
Gesture, it is the irreversible trend of modern energy field development, is energy supply mode most with prospects.
But natural gas resource is the non-renewable energy for belonging to easy consumption after all, and natural gas resource nor
Inexhaustible, so should save using reduction consumption as far as possible.This just needs to develop as far as possible and can using some
The clean energy resource of regeneration is used as the replacement or supplement of natural gas, such as solar energy, wind energy, geothermal energy.
Solar energy is a kind of inexhaustible best regenerative resource to spread all over the world, but solar energy resources
Utilization also have its constrained part, maximum of which is exactly that solar energy only has fine day on daytime to utilize by about part, cloudy
It can not be utilized with evening, this results in the discontinuity of using energy source.In order to realize the continuous generating of solar energy, then need to spend
Huge financial resources do the energy-storage system of gigantic project, not only store up usable equipment and material is very expensive, but also with various
The restriction realized is not easy, realizes that difficulty is bigger.Such as solar energy dish-style electricity generation system using certain gas, liquid, it is necessary to be made
It is virtually to add two circulatory systems for intermediate cycle medium, and by the use of materials such as ceramics, fuse salts as energy-accumulating medium more
And equipment, system complex, engineering is huge, material expensive, and power consumption is big.
The content of the invention
It is an object of the present invention to provide a kind of disc type solar energy photo-thermal and natural gas combined generating system, by natural gas
Electricity generation system and disc type solar energy solar-thermal generating system combine, and can reduce the consumption of natural gas resource, drop
Low running cost, generated electricity meanwhile, it is capable to effectively utilize renewable energy solar energy, and sent out in disc type solar energy photo-thermal
Electric system, which need not be set, ensures that whole system continuously generates electricity energy supply in the case of costly energy-storage system, to reduce every nature's mystery
Carbonated drink and thermal loss caused by group start and stop, extension device service life, improve system overall operation efficiency.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of disc type solar energy photo-thermal and natural gas combined generating system, including gas power generation system, waste heat boiler, dish-style
Solar energy heat conversion system and the second generator；Steam turbine and the second generator are connected, gas power generation system and waste heat boiler
Flue gas system be connected, Turbine Steam water system is connected with the boiler circuit of waste heat boiler, disc type solar energy photothermal deformation
System is connected through steam/water circulating passage and waste heat boiler with steam turbine.Wherein, disc type solar energy photothermal deformation system uses water
As cycle fluid, intercycle system and heat reservoir are saved.Cost is more for intermediate medium and heat accumulating for aqueous phase
It is low, it is easier to obtain, system is more simplified.
In foregoing disc type solar energy photo-thermal and natural gas combined generating system, gas power generation system includes air compressor machine, combustion
Burn room, gas turbine and the first generator, air compressor machine, combustion chamber and gas turbine to be sequentially communicated, gas turbine and first generates electricity
Machine is connected, and gas turbine is connected with exhaust-heat boiler flue gas system.
In foregoing disc type solar energy photo-thermal and natural gas combined generating system, solar energy heat conversion system is dish-style.
Disc type solar energy solar-thermal generating system does cycle fluid using water, cancels intercycle system, does not set energy-storage system.
In foregoing disc type solar energy photo-thermal and natural gas combined generating system, in addition to waste heat boiler afterburning system, mend
Combustion system is connected with waste heat boiler.Afterburning system is used for when the sun is insufficient or does not have illumination, using the side of natural gas afterburning
Formula meets the needs of cold and hot electric load.
In foregoing disc type solar energy photo-thermal and natural gas combined generating system, in addition to waste heat boiler afterbody hot water heating
System, waste heat boiler afterbody water heater funnel are located at the flue end of waste heat boiler.By setting waste heat boiler afterbody hot water
Heating system can sufficiently utilize the waste heat of waste heat boiler tail flue gas, be used to supply user as life using caused hot water
Hot water, and waste heat boiler exhaust gas temperature can be reduced.
In foregoing disc type solar energy photo-thermal and natural gas combined generating system, waste heat boiler afterburning system, steam/water circulating
The flue gas exhaust direction of passage and waste heat boiler afterbody water heater funnel along waste heat boiler is sequentially arranged.By steam/water circulating passage
The upstream of waste heat boiler afterbody water heater funnel is arranged on, is to be able to give heat centralizedly supply to steam/water circulating passage,
And waste heat boiler afterbody water heater funnel is intended merely to more fully utilize the waste heat of waste heat boiler afterbody smoke evacuation.
In foregoing disc type solar energy photo-thermal and natural gas combined generating system, waste heat boiler is provided with drum, and carbonated drink is followed
Ring passage is connected with drum.Its effect is that steam is produced in waste heat boiler.
In foregoing disc type solar energy photo-thermal and natural gas combined generating system, in addition to oxygen-eliminating device, oxygen-eliminating device and carbonated drink
Circulation canal is connected, and it is to remove the oxygen in working medium that it, which is acted on, prevents equipment and pipeline to be oxidized corrosion, extension device and pipe
The service life of road system.Meanwhile heat feedwater.
In foregoing disc type solar energy photo-thermal and natural gas combined generating system, in addition to condenser, condenser and steamer
Machine is connected, and condenser is located at the downstream of steam turbine.It is to reduce steam turbine exhaust pressure that it, which is acted on, and it is true to improve turbine discharge
Sky, working medium is reclaimed, ensures the normally and efficiently operation of turbine generating system.
In foregoing disc type solar energy photo-thermal and natural gas combined generating system, in addition to gland heater, axle envelope heating
Device is connected with the axle envelope pump-line and condensing water conduit of steam turbine.It is the heat for reclaiming turbine shaft seal pumping that it, which is acted on,
The temperature of condensate is risen to heat-setting water extraction.
Compared with prior art, the present invention organically ties natural gas power system and disc type solar energy solar-thermal generating system
It is combined, realizes that continuous power supply and heat supply, two kinds of energy can have complementary advantages, learn from other's strong points to offset one's weaknesses, makes system safer economical steady
Surely run, while eliminate intercycle system, and solve disc type solar energy solar-thermal generating system night to be not easy energy storage
Problem, the investment of energy storage device is greatly reduced, reduces input cost, simplifies system.This electricity generation system can connect throughout the year
Continuous efficient stable operation, so as to greatly improve the whole economic efficiency of project.
Disc type solar energy and natural gas are joined together to be generated electricity and heat supply by the present invention, compensate for this two spike-type cultivars just
The respective deficiency utilized, so that two spike-type cultivars have complementary advantages, learn from other's strong points to offset one's weaknesses, realize that the energy combines the most perfect combination utilized.
The disc type solar energy electricity generation system of the present invention adopts water as cycle fluid, without intercycle system and energy-storage system, system letter
Single, power consumption is low, and working medium is readily available.
Usual daytime is the power consumption bigger period relatively concentrated, now, exactly solar energy more sufficient time,
So boiler feedwater can be made more to enter solar heating system, the replacement or benefit of natural gas energy are used as by the use of solar energy
Fill, reduce the consumption of natural gas as far as possible.Arrive at night or the cloudy day is not when having solar energy or solar energy deficiency, then can pass through system
The control of valve will feed water and gradually switch to waste heat boiler boiler circuit, with the burning of the waste heat and afterburning natural gas of gas turbine
Heat makes up the deficiency of solar energy, realize it is continuous generate electricity and heat supply, to ensure continuously to energize demand.
It is that can ensure that whole day continuously generates electricity before energy supply it is extremely important that this solar energy is combined with natural gas
Put, it is big that the energy storage two such as the intermediate medium circulatory system and fuse salt, ceramics in disc type solar energy electricity generation system can be fully phased out
System, working medium used is also very simple, using only a kind of hot aqueous medium for being easiest to obtain.This solar energy with it is natural
Depressed conjunction, disc type solar energy electricity generation system is not only greatly simplified, saves engineering investment cost, shorten engineering construction week
Phase, reduce the loss of daily start and stop working medium and heat, reduce the power consumption of intercycle system and energy-storage system, extend
Service life of equipment, saves operation and maintenance cost, improves overall operation efficiency, also considerably reduce natural gas resource
Consumption, reduce production and operation cost, the economic benefit for improving whole project be extremely important.Meanwhile very
Energy-saving and emission-reduction are just realized, protect environment.It is to achieve many things at one stroke, once invests lifelong benefit.
Brief description of the drawings
Fig. 1 is a kind of system schematic of embodiment of the present invention.
Reference：1- air compressor machines, 2- combustion chambers, 3- gas turbines, the generators of 4- first, 5- waste heat boiler afterburnings system
System, 6- steam/water circulating passages, 7- disc type solar energy photothermal deformation systems, 8- drums, 9- waste heat boilers, 10- oxygen-eliminating devices, more than 11-
Heat boiler afterbody water heater funnel, 12- gland heaters, 13- condensers, the generators of 14- second, 15- steam turbines, 16- combustions
Gas electricity generation system.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Embodiment
Embodiments of the invention 1：As shown in figure 1, a kind of disc type solar energy photo-thermal and natural gas combined generating system, including
Gas power generation system 16, waste heat boiler 9, disc type solar energy photothermal deformation system 7, the generator 14 of steam turbine 15 and second；Steamer
Machine 15 is connected with the second generator 14, and gas power generation system 16 is connected with the flue gas system of waste heat boiler 9, the vapour of steam turbine 15
Water system is connected with the boiler circuit of waste heat boiler 9, and disc type solar energy photothermal deformation system 7 is through steam/water circulating passage 6 and vapour
Turbine 15 is connected.Gas power generation system 16 includes air compressor machine 1, combustion chamber 2, the generator 4 of gas turbine 3 and first.Air compressor machine
1st, combustion chamber 2 and gas turbine 3 are sequentially communicated, and gas turbine 3 is connected with the first generator 4, gas turbine 3 and waste heat boiler 9
Flue gas system be connected.
Also include waste heat boiler afterburning system 5, afterburning system 5 is connected with waste heat boiler 9.
Also include waste heat boiler afterbody water heater funnel 11, waste heat boiler afterbody water heater funnel 11 is arranged on waste heat
The flue end of boiler 9.
Waste heat boiler afterburning system 5, steam/water circulating passage 6 and waste heat boiler afterbody water heater funnel 11 are along waste heat boiler
9 flue gas exhaust direction is sequentially arranged.
Waste heat boiler 9 is provided with drum 8, and steam/water circulating passage 6 is connected with drum 8.
Also include oxygen-eliminating device 10, oxygen-eliminating device 10 is connected with steam/water circulating passage 6.
Also include condenser 13, condenser 13 is connected with steam turbine 15, and condenser 13 is located at the downstream of steam turbine 15.
Also include gland heater 12, the axle envelope pump-line and condensing water conduit phase of gland heater 12 and steam turbine 15
Connection.
A kind of operation principle of embodiment of the present invention：By the working-medium water of disc type solar energy electricity generation system in disc type solar energy
Preset temperature value is heated in photothermal deformation system 7, enters back into the heat temperature raising of waste heat boiler 9, evaporation, overheat as overheat steaming
Vapour, generated electricity subsequently into steam turbine 15.Meanwhile natural gas is directly entered gas turbine 3 and generated electricity, gas turbine 3 is sent out
400~500 DEG C or so of the heat smoke discharged after electricity enters back into waste heat boiler 9, water is heated into superheated steam, superheated steam enters
Enter steam turbine 15 to be generated electricity.When daytime, solar irradiation was more sufficient, disc type solar energy photothermal deformation system is as often as possible utilized
Working medium feedwater is heated to preset temperature by system 7, and subsequently into the drum of waste heat boiler 9, this working medium from gas turbine 3 with discharging fume
The caused hot water mixing in waste heat boiler 9, then further heated up, evaporated in waste heat boiler 9 together, overheat it is laggard
Enter steam turbine 15 to be generated electricity.After condensate is boosted together with moisturizing by condensate pump caused by condenser 13, through axle envelope plus
Hot device heating enters Economizer of Heat Recovery Boiler and heated, and deoxygenation is carried out subsequently into the oxygen-eliminating device that waste heat boiler carries.After deoxygenation
Low pressure feed water is divided into two-way：A-road-through crosses the boosting of waste heat boiler feed pump, continues to heat into the heating surface inside waste heat boiler
Heating, enters back into waste heat boiler drum；Another way is boosted by solar energy system feed pump, into solar energy heat conversion system
Continue heat temperature raising, subsequently into waste heat boiler drum, the feedwater after two parts heating mixes in boiler-steam dome.When morning,
At dusk, when cloudy solar illuminating is inadequate, water portion can be poured in separately to waste heat boiler itself water supply system, the heating of solar energy
Insufficient section, supplied by waste heat boiler afterburning system 5.When not having solar energy heating completely at night, can stop transport solar energy
Hot water supply system, all generated electricity using gas power generation system 16 and gas complementary combustion system 5, can completely send out, can also according to
Electric demand carries out sub-load generating.In order to make full use of the smoke discharging residual heat of waste heat boiler, exhaust gas temperature is reduced, in waste heat boiler
Afterbody be provided with back-end surfaces, hot water is produced, available for providing domestic hot-water.
Claims (3)
1. a kind of disc type solar energy photo-thermal and natural gas combined generating system, it is characterised in that including gas power generation system (16),
Waste heat boiler (9), disc type solar energy photothermal deformation system (7), steam turbine (15) and the second generator (14)；Steam turbine (15) and
Second generator (14) is connected, and gas power generation system (16) is connected with the flue gas system of waste heat boiler (9), steam turbine (15)
Boiler circuit is connected with the boiler circuit of waste heat boiler (9), and disc type solar energy photothermal deformation system (7) is through steam/water circulating passage
(6) and waste heat boiler (9) is connected with steam turbine (15), in addition to condenser (13), condenser (13) and steam turbine (15) phase
Connection, condenser (13) are located at the downstream of steam turbine (15)；Gas power generation system (16) include air compressor machine (1), combustion chamber (2),
Gas turbine (3) and the first generator (4)；Air compressor machine (1), combustion chamber (2) and gas turbine (3) are sequentially communicated, gas turbine
(3) it is connected with the first generator (4), gas turbine (3) is connected with the flue gas system of waste heat boiler (9)；On waste heat boiler (9)
Provided with drum (8), steam/water circulating passage (6) is connected with drum (8)；Also include waste heat boiler afterburning system (5), waste heat boiler
Afterburning system (5) is connected with waste heat boiler (9)；Also include waste heat boiler afterbody water heater funnel (11), waste heat boiler tail
Portion's water heater funnel (11) is located at the flue end of waste heat boiler (9)；Waste heat boiler afterburning system (5), steam/water circulating passage
(6) it is sequentially arranged with smoke evacuation direction of the waste heat boiler afterbody water heater funnel (11) along waste heat boiler (9).
2. disc type solar energy photo-thermal according to claim 1 and natural gas combined generating system, it is characterised in that also include
Oxygen-eliminating device (10), oxygen-eliminating device (10) are connected with steam/water circulating passage (6).
3. disc type solar energy photo-thermal according to claim 1 and natural gas combined generating system, it is characterised in that also include
Gland heater (12), gland heater (12) are connected with the axle envelope pump-line and condensing water conduit of steam turbine (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510315275.9A CN104912666B (en) | 2015-06-10 | 2015-06-10 | Disc type solar energy photo-thermal and natural gas combined generating system |
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| CN201510315275.9A CN104912666B (en) | 2015-06-10 | 2015-06-10 | Disc type solar energy photo-thermal and natural gas combined generating system |
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| CN104912666A CN104912666A (en) | 2015-09-16 |
| CN104912666B true CN104912666B (en) | 2017-11-14 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101055121A (en) * | 2007-05-31 | 2007-10-17 | 上海交通大学 | Minisize distributed type solar energy driven combining system for supplying cool, hot energy and electricity |
| CN102878036A (en) * | 2012-09-10 | 2013-01-16 | 汪禹 | Solar energy-gas turbine combined cycle cogeneration system |
| CN103256119A (en) * | 2012-06-19 | 2013-08-21 | 湖南大学 | Integration system for religion architecture |
| CN104314628A (en) * | 2014-10-14 | 2015-01-28 | 华电电力科学研究院 | Coal-fired unit and gas turbine combined type power generation system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8674532B2 (en) * | 2011-04-28 | 2014-03-18 | General Electric Company | Hybrid concentrated solar combined cycle power plant and solar reformer for use therein |
| CN103089555A (en) * | 2011-11-01 | 2013-05-08 | 雒晓卫 | Solar heat collection technology and gas-steam combined cycle device coupling power generation technology |
| CN204003103U (en) * | 2014-07-09 | 2014-12-10 | 南瑞（武汉）电气设备与工程能效测评中心 | A kind of distributed energy supply equipment that adopts rock gas and solar association circulation |
| CN204677302U (en) * | 2015-06-10 | 2015-09-30 | 中国华电工程(集团)有限公司 | Disc type solar energy photo-thermal and rock gas combined generating system |
-
2015
- 2015-06-10 CN CN201510315275.9A patent/CN104912666B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101055121A (en) * | 2007-05-31 | 2007-10-17 | 上海交通大学 | Minisize distributed type solar energy driven combining system for supplying cool, hot energy and electricity |
| CN103256119A (en) * | 2012-06-19 | 2013-08-21 | 湖南大学 | Integration system for religion architecture |
| CN102878036A (en) * | 2012-09-10 | 2013-01-16 | 汪禹 | Solar energy-gas turbine combined cycle cogeneration system |
| CN104314628A (en) * | 2014-10-14 | 2015-01-28 | 华电电力科学研究院 | Coal-fired unit and gas turbine combined type power generation system |
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| CN104912666A (en) | 2015-09-16 |
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Address after: 100160 Beijing, Fengtai District Automobile Museum Road, No. 6, Ying Kun century A block, floor 6 Applicant after: HUADIAN DISTRIBUTED ENERGY ENGINEERING & TECHNOLOGY Co.,Ltd. Applicant after: CHINA HUADIAN ENGINEERING Co.,Ltd. Address before: 100160 Beijing, Fengtai District Automobile Museum Road, No. 6, Ying Kun century A block, floor 6 Applicant before: HUADIAN DISTRIBUTED ENERGY ENGINEERING & TECHNOLOGY Co.,Ltd. Applicant before: China Huadian Engineering (Group) Co.,Ltd. Address after: 100160 Beijing, Fengtai District Automobile Museum Road, No. 6, Ying Kun century A block, floor 6 Applicant after: HUADIAN DISTRIBUTED ENERGY ENGINEERING & TECHNOLOGY Co.,Ltd. Applicant after: China Huadian Engineering (Group) Co.,Ltd. Address before: 100160 Beijing, Fengtai District Automobile Museum Road, No. 6, Ying Kun century A block, floor 11 Applicant before: China Huadian Engineering (Group) Co.,Ltd. Applicant before: HUADIAN DISTRIBUTED ENERGY ENGINEERING & TECHNOLOGY Co.,Ltd. |
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