CN104019005A - Electric heat tracing type Fresnel direct steam solar thermal power generation system - Google Patents
Electric heat tracing type Fresnel direct steam solar thermal power generation system Download PDFInfo
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- CN104019005A CN104019005A CN201410215820.2A CN201410215820A CN104019005A CN 104019005 A CN104019005 A CN 104019005A CN 201410215820 A CN201410215820 A CN 201410215820A CN 104019005 A CN104019005 A CN 104019005A
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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
- Y02E10/44—Heat exchange systems
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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 invention provides an electric heat tracing type Fresnel direct steam solar thermal power generation system. A working medium of an evaporation-section Fresnel solar heat collection mirror field is conduction oil. The evaporation-section Fresnel solar heat collection mirror field is connected with a steam generator through a high-temperature oil tank. The steam generator is connected with the evaporation-section Fresnel solar heat collection mirror field through a low-temperature oil tank. The steam generator is connected with a steam-water separator. The steam-water separator is connected with a superheater. A superheating-section Fresnel solar heat collection mirror field and a superheated steam auxiliary electrical heating system are connected with the superheater respectively. The superheater is connected with a steam turbine. The steam turbine is connected with a power generator and a condenser. The condenser is connected with a condensate pump. The condensate pump and a water replenishing pipe are converged and then are connected with an inlet of a deaerator. An outlet of the deaerator is connected with the steam generator through a water feed pump. Two loops are adopted for the evaporation-section Fresnel solar heat collection mirror field, and the superheated steam auxiliary electrical heating system is adopted for the superheating-section Fresnel solar heat collection mirror field, so that the electric heat tracing type Fresnel direct steam solar thermal power generation system is high in efficiency and simple in structure.
Description
Technical field
The invention belongs to solar energy heat utilization technical field, be specifically related to a kind of electric heat tracing type Fresnel live steam solar heat power generation system.
Background technique
Solar energy has resource abundance, longevity, widely distributed, safe, the clean and reliable advantage of technology.Because solar energy can convert multiple other forms of energy to, therefore application area is very extensive.Wherein solar electrical energy generation has very large development potentiality in China.China's solar energy resources is abundant, and more than 2/3 area of a national total area year sunshine duration is greater than 2000 hours, close with the U.S., than Europe, Japanese more advantageous.From the overall situation, China is the country that solar energy resources quite enriches, and has development solar energy and utilizes the advantageous supremacy clause of cause.
The advantages such as wherein the hot generation technology of Fresnel solar energy is simple in structure with it, cost is low, have good Commercial Prospect.Fresnel solar energy heat generating system is to utilize to have the principal reflection mirror of following the tracks of solar motion device and be listed as sunlight is reflected and gathered on quadric secondary reflex mirror and heat collecting pipe, the radiation energy of sunlight is converted into heat energy by heat collecting pipe, and heat the water of High Temperature High Pressure in heat collecting pipe, produce the generating of Steam Actuation steam turbine power generation unit.Compare trough type solar power generation technology, Fresnel live steam solar energy thermal-power-generating technology is except cost advantage, its more significant advantage is that the more superheated vapor of high parameter can be provided, and vapor (steam) temperature can reach more than 500 DEG C, will significantly improve the energy conversion efficiency of solar energy thermal-power-generating.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of electric heat tracing type Fresnel live steam solar heat power generation system, significantly improve the energy conversion efficiency of solar energy thermal-power-generating.
In order to achieve the above object, the technological scheme that the present invention takes is:
A kind of electric heat tracing type Fresnel live steam solar heat power generation system, comprise evaporator section Fresnel solar energy heating mirror field 10, the working medium of evaporator section Fresnel solar energy heating mirror field 10 is conduction oil, the outlet of evaporator section Fresnel solar energy heating mirror field 10 is connected with the entrance of high temperature oil tank 11, the conduction oil side high temperature entrance of the outlet of high temperature oil tank 11 and steam generator 9 is connected, the conduction oil side low temperature outlet of steam generator 9 is connected with the entrance of low temperature oil tank 12, the outlet of low temperature oil tank 12 is connected with the entrance of evaporator section Fresnel solar energy heating mirror field 10, the carbonated drink side high temperature outlet of steam generator 9 is connected with the entrance of steam-water separator 5, the water out of steam-water separator 5 is connected with development unit 13, the gas outlet of steam-water separator 5 is connected with the entrance of superheater 3, superheat section Fresnel solar energy heat collecting field 1, superheated vapor auxiliary electrical heater system 2 is connected with superheater 3 respectively, the outlet of superheater 3 is connected with steam turbine 4 suction ports, steam turbine 4 is connected with generator 7, steam turbine 4 air outlets are connected with vapour condenser 6 entrances, the water outlet of vapour condenser 6 is connected with condensate pump 14 entrances, condensate pump 14 exports and is connected with oxygen-eliminating device 8 entrances after water-adding pipe 15 bouts, oxygen-eliminating device 8 outlets are connected by the carbonated drink side low temperature entrance of feed water pump 16 and steam generator 9.
Described superheater 3 adopts solar vacuum heat-collecting pipe.
Described superheater 3 adopts the auxiliary companion's heat of direct electric heating superheater 3.
Auxiliary electrical companion heat boiler is installed in described superheater 3 outlets.
Feature of the present invention: 1) evaporator section Fresnel solar energy heating mirror field one loop employing conduction oil is working medium, and increase the steady load of evaporator section by heat-storing device, reduce because of the fluctuate fluctuation of the steam flow causing of solar radiation, the further impact of minimizing to follow-up steam turbine power generation process.2) superheated vapor section adopts live steam Fresnel solar energy heating Jing Chang, further improves superheated vapor parameter, thereby improves follow-up turbine generating system efficiency, makes whole solar thermal power generation system have higher efficiency.3) this superheated vapor auxiliary electrical heater system has fast response time, can respond fast the fluctuate steam parameter that causes of solar radiation and change, and makes superheated vapor parameter keep stable.4) superheated vapor auxiliary electrical heater system, has stablized superheated vapor parameter, reduces the impact that it is fluctuateed by solar radiation, and particularly superheated vapor auxiliary electrical heater system can be simplified solar heat power generation system structure, reduces construction investment, shortens the construction period.
Brief description of the drawings
Accompanying drawing is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in more detail.
As shown in drawings, a kind of electric heat tracing type Fresnel live steam solar heat power generation system, comprise evaporator section Fresnel solar energy heating mirror field 10, the working medium of evaporator section Fresnel solar energy heating mirror field 10 is conduction oil, the outlet of evaporator section Fresnel solar energy heating mirror field 10 is connected with the entrance of high temperature oil tank 11, the conduction oil side high temperature entrance of the outlet of high temperature oil tank 11 and steam generator 9 is connected, the conduction oil side low temperature outlet of steam generator 9 is connected with the entrance of low temperature oil tank 12, the outlet of low temperature oil tank 12 is connected with the entrance of evaporator section Fresnel solar energy heating mirror field 10, one loop conduction oil circulates between low temperature oil tank 12 and high temperature oil tank 11, for further increasing the solar energy thermal-power-generating time, can also increase heat accumulation oil tank, the carbonated drink side high temperature outlet of steam generator 9 is connected with the entrance of steam-water separator 5, the water out of steam-water separator 5 is connected with development unit 13, the gas outlet of steam-water separator 5 is connected with the entrance of superheater 3, superheat section Fresnel solar energy heat collecting field 1, superheated vapor auxiliary electrical heater system 2 is connected with superheater 3 respectively, the outlet of superheater 3 is connected with steam turbine 4 suction ports, steam turbine 4 is connected with generator 7, steam turbine 4 air outlets are connected with vapour condenser 6 entrances, the water outlet of vapour condenser 6 is connected with condensate pump 14 entrances, condensate pump 14 exports and is connected with oxygen-eliminating device 8 entrances after water-adding pipe 15 bouts, oxygen-eliminating device 8 outlets are connected by the carbonated drink side low temperature entrance of feed water pump 16 and steam generator 9, heat exchange is carried out by steam generator 9 and secondary circuit boiler circuit in conduction oil one loop, feedwater is heated to be to wet saturated steam, then by steam-water separator 5, carbonated drink is separated, dry saturated vapor enters superheat section Fresnel solar energy heat collecting field 1, by superheater 3, dry saturated vapor is heated to be to high parameter superheated vapor, entering steam turbine 4 generates electricity.Owing to being subject to the impact of changes of weather, particularly the block effect of cloud layer to solar radiation, the heat load of superheat section Fresnel solar energy heat collecting field 1 also has larger fluctuation thereupon, for increasing the stability of superheat section superheated vapor parameter, the present invention carries out auxiliary heating by superheated vapor auxiliary electrical heater system 2 to superheater 3, with thermal stability steam parameter, reach the stability of solar heat power generation system.
Described superheater 3 adopts solar vacuum heat-collecting pipe.
Described superheater 3 adopts the auxiliary companion's heat of direct electric heating superheater 3.
Auxiliary electrical companion heat boiler is installed in described superheater 3 outlets.
Working principle of the present invention is:
First start operation evaporator section Fresnel solar energy heating Jing Chang loop: 10-high temperature oil tank 11-steam generator 9-low temperature oil tank 12-evaporator section Fresnel solar energy heating mirror field, evaporator section Fresnel solar energy heating mirror field 10, reach after predetermined temperature until steam generator 9, start the boiler circuit of operation heat generating system: water-adding pipe 15-oxygen-eliminating device 8-steam generator 9-steam-water separator 5, feedwater is heated to be to wet saturated steam, and by steam-water separator 5, carbonated drink is separated.Start operation superheat section Fresnel solar energy heating Jing Chang loop: steam-water separator 5-superheater 3-superheat section Fresnel solar energy heat collecting field 1(superheated vapor auxiliary electrical heater system 2 simultaneously)-superheater 3, enter superheat section Fresnel solar energy heat collecting field 1 by the dry saturated vapor in steam-water separator 5, and by superheater 3, dry saturated vapor is heated to be to high parameter superheated vapor, entering steam turbine 4 generates electricity, in the time that solar radiation value fluctuates, start superheated vapor auxiliary electrical heater system 2 simultaneously, steam parameter due to Fast-Balance solar radiation fluctuation changes, make superheated vapor parameter keep stable.
Claims (4)
1. an electric heat tracing type Fresnel live steam solar heat power generation system, comprise evaporator section Fresnel solar energy heating Jing Chang (10), it is characterized in that: the working medium of evaporator section Fresnel solar energy heating Jing Chang (10) is conduction oil, the outlet of evaporator section Fresnel solar energy heating Jing Chang (10) is connected with the entrance of high temperature oil tank (11), the conduction oil side high temperature entrance of the outlet of high temperature oil tank (11) and steam generator (9) is connected, the conduction oil side low temperature outlet of steam generator (9) is connected with the entrance of low temperature oil tank (12), the outlet of low temperature oil tank (12) is connected with the entrance of evaporator section Fresnel solar energy heating Jing Chang (10), the carbonated drink side high temperature outlet of steam generator (9) is connected with the entrance of steam-water separator (5), the water out of steam-water separator (5) is connected with development unit (13), the gas outlet of steam-water separator (5) is connected with the entrance of superheater (3), superheat section Fresnel solar energy heat collecting field (1), superheated vapor auxiliary electrical heater system (2) is connected with superheater (3) respectively, the outlet of superheater (3) is connected with steam turbine (4) suction port, steam turbine (4) is connected with generator (7), steam turbine (4) air outlet is connected with vapour condenser (6) entrance, the water outlet of vapour condenser (6) is connected with condensate pump (14) entrance, condensate pump (14) exports and is connected with oxygen-eliminating device (8) entrance after water-adding pipe (15) bout, oxygen-eliminating device (8) outlet is connected by the carbonated drink side low temperature entrance of feed water pump (16) and steam generator (9).
2. a kind of electric heat tracing type Fresnel live steam solar heat power generation system according to claim 1, is characterized in that: described superheater (3) adopts solar vacuum heat-collecting pipe.
3. a kind of electric heat tracing type Fresnel live steam solar heat power generation system according to claim 1, is characterized in that: described superheater (3) adopts the auxiliary companion's heat of direct electric heating superheater 3.
4. a kind of electric heat tracing type Fresnel live steam solar heat power generation system according to claim 1, is characterized in that: auxiliary electrical companion heat boiler is installed in described superheater (3) outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215820.2A CN104019005B (en) | 2014-05-21 | 2014-05-21 | A kind of electric heat tracing type Fresnel live (open) steam solar heat power generation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410215820.2A CN104019005B (en) | 2014-05-21 | 2014-05-21 | A kind of electric heat tracing type Fresnel live (open) steam solar heat power generation system |
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| CN104019005A true CN104019005A (en) | 2014-09-03 |
| CN104019005B CN104019005B (en) | 2016-09-14 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876299A (en) * | 2010-05-24 | 2010-11-03 | 北京京仪仪器仪表研究总院有限公司 | Method and system for combing solar energy thermal power generation with biomass power generation |
| WO2010149614A2 (en) * | 2009-06-26 | 2010-12-29 | Siemens Aktiengesellschaft | Run-up method for a solar steam power plant |
| CN102661259A (en) * | 2012-05-03 | 2012-09-12 | 中国华能集团清洁能源技术研究院有限公司 | High-efficiency integrated solar thermal power generation system |
| CN103573569A (en) * | 2012-07-25 | 2014-02-12 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Trough type and Fresnel solar mixing thermal power generation system |
| CN203906196U (en) * | 2014-05-21 | 2014-10-29 | 中国华能集团清洁能源技术研究院有限公司 | Electric-heat-tracing Fresnel direct-steam solar heat power generating device |
-
2014
- 2014-05-21 CN CN201410215820.2A patent/CN104019005B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010149614A2 (en) * | 2009-06-26 | 2010-12-29 | Siemens Aktiengesellschaft | Run-up method for a solar steam power plant |
| CN101876299A (en) * | 2010-05-24 | 2010-11-03 | 北京京仪仪器仪表研究总院有限公司 | Method and system for combing solar energy thermal power generation with biomass power generation |
| CN102661259A (en) * | 2012-05-03 | 2012-09-12 | 中国华能集团清洁能源技术研究院有限公司 | High-efficiency integrated solar thermal power generation system |
| CN103573569A (en) * | 2012-07-25 | 2014-02-12 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Trough type and Fresnel solar mixing thermal power generation system |
| CN203906196U (en) * | 2014-05-21 | 2014-10-29 | 中国华能集团清洁能源技术研究院有限公司 | Electric-heat-tracing Fresnel direct-steam solar heat power generating device |
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| CN104019005B (en) | 2016-09-14 |
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