CN102678488A - Groove type solar medium-low temperature sterling thermal generating device - Google Patents
Groove type solar medium-low temperature sterling thermal generating device Download PDFInfo
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- CN102678488A CN102678488A CN2011100600789A CN201110060078A CN102678488A CN 102678488 A CN102678488 A CN 102678488A CN 2011100600789 A CN2011100600789 A CN 2011100600789A CN 201110060078 A CN201110060078 A CN 201110060078A CN 102678488 A CN102678488 A CN 102678488A
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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 discloses a groove type solar medium-low temperature sterling thermal generating device which is composed of a parabolic groove condensing array, a linear focusing strengthening heat collection pipe, a heat-conduction working medium, an atomizer, an atomization flash tank, a pressure pump, a pressure control valve, a heat exchanging and storing device, a heat-storing medium, a middle-low temperature sterling generator, a condensing water receiver, an adjusting valve, a transmission pipeline, a complementary boiler, a condensing array cluster programmable logic controller (PLC) and a hydraulic driver or a worm and gear driver. The groove type solar medium-low temperature sterling thermal generating device uses atomized vapor, heat-conduction oil or fused salt as the heat-conduction working medium, provides heat energy for the middle-low temperature sterling generator through the heat exchanging and storing device and directly drives the sterling generator to achieve solar heat-gathering generation. The invention belongs to the field of solar heat utilization.
Description
Technical field
The present invention relates to the device of low temperature stirling generator realization heat build-up generating (CSP) in a kind of employing groove type solar driving, this technology belongs to solar energy heat utilization field.
Background technique
Solar energy heat build-up generating (CSP) is compared photovoltaic generation (PV) and is had outstanding features such as scale is big, concentration degree is high, efficient height; But the common issue that faces is how to reduce manufacture cost and how to improve generating efficiency and then the reduction cost of electricity-generating, especially reduces manufacture cost and just becomes two kinds of solar energy generation technology competition focal point with the raising generating efficiency.Solar energy heat build-up generating (CSP) mainly contains four kinds of hot power generation modes such as slot type, tower, dish formula and reflection Fresnel, and wherein groove type solar heat build-up generating has realized commercialization.It is heat-transfer working medium that this technology mainly adopts conduction oil, produces the conventional steam turbine generator generating of steam rear driving through the conduction oil heat exchange.Because the conduction oil operating temperature can not be higher than 400 degree, therefore limited the raising of groove type solar generating efficiency.But the Stirling technology has had new development in recent years, the middle low temperature stirling generator that can below 400 degree, work occurred, and its photoelectric transformation efficiency can reach 20%, is higher than the overall efficiency of common trough type solar power generation 15% far away.Present international solar energy heat build-up generating (CSP) field is being studied and is being adopted the working medium substitute technology to improve the working medium temperature, so as to raising the efficiency, yet along with the raising of temperature, correspondingly critical components such as heat collecting pipe has also been proposed requirements at the higher level, causes cost to improve.If on former parabola groove solar energy thermal-power-generating basis, the power unit is replaced; Change steam Rankine cycle generating and be the generating of electromechanical integration Stirling; Giving full play to groove type solar can energy storage and the middle low temperature Stirling not advantage separately of consume water of generating electricity, and realizes having complementary advantages, and just can reduce manufacturing and cost of electricity-generating significantly; Creation is with the advantage of fossil energy competition, and then the realization energy substitution.
Summary of the invention
The present invention is exactly the groove type solar heat build-up electricity generating device of setting up for the mutual supplement with each other's advantages that realizes groove type solar and middle low temperature Stirling technology.
The present invention strengthens heat collecting pipe, heat-conducting work medium, atomizer, atomization flash-evaporation jar, pressure pump, pressure controlled valve, heat exchange heat reservoir, heat-storage medium, middle low temperature stirling generator, condensation water storage container, modulating valve, transfer line, complementary boiler, optically focused array cluster PCL controller by parabola groove optically focused array, linear focusing; Hydraulic pressure or turbine and worm driver are formed, and it is characterized in that: make heat-transfer working medium after directly will softening the purified water atomizing; Parabola groove optically focused array front end is provided with atomizer, and atomizer outlet connecting line focuses on strengthens the heat collecting pipe import, and linear focusing is strengthened the heat collecting pipe outlet and connected the import of atomization flash-evaporation jar, and the outlet of atomization flash-evaporation jar connects next parabola groove optically focused array to produce superheated vapor; The parabola groove optically focused array outlet that produces superheated vapor connects heat exchange heat reservoir entrance point; Heat exchange heat reservoir outlet end connects the import of condensation water storage container; The atomization flash-evaporation jar is provided with atomizer, and the atomizer import connects pressure pump; Another outlet of atomization flash-evaporation jar connects pressure controlled valve, and pressure controlled valve one end connects the condensation water storage container; The condensation water storage container connects pressure pump, and the pressure pump outlet connects two atomizers respectively; The hot junction of several stirling generators is arranged on the corresponding interface of the hot device of heat exchange heat accumulation; Complementary boiler is connected in parallel between pressure pump outlet and the import of heat exchange heat reservoir; Heat-storage medium is a fused salt; Modulating valve is arranged in the pipeline.
Another technological scheme is to adopt conduction oil or fused salt to make heat-transfer working medium; The outlet of parabola groove optically focused array connects the import of heat exchange heat reservoir, and the outlet of heat exchange heat reservoir connects the pressure pump entrance point, and the pressure pump outlet end connects the import of parabola groove optically focused array; Middle low temperature stirling generator becomes array-type order distributed and arranged at heat exchange heat reservoir periphery; Middle low temperature stirling generator hot junction is installed in the corresponding interface of heat exchange heat reservoir; Adopt the complementary boiler of conduction oil working medium parallelly connected with pressure pump and heat exchange heat reservoir; Adopt the complementary boiler of fused salt working medium to be connected between outlet of parabola groove optically focused array and the import of heat exchange heat reservoir.
The metal inner pipe that said linear focusing is strengthened heat collecting pipe is annular or the regular node metal inner pipe that raises into bud of spirality or metal tube surface with forced heat exchanging function; Impel heat exchange medium to become laminar heat transfer and be turbulent heat transfer, can carry the internal pressure that is not less than 10Mpa simultaneously; Also can use metal straight pipe when adopting conduction oil or fused salt to make heat-transfer working medium.
In the said heat exchange heat reservoir tubular exchanger is set, material inlet, pressure regulator valve and pressure transducer are set; Adopt conduction oil or fused salt to make heat-transfer working medium tubular exchanger can be set, but the temperature balance stirring apparatus will be set.
Said pressure pump is high-temperature melting salt pump, Heat-transfer Oil Pump or water pump.
Said atomizer is the device that is provided with atomization spray cap.
Said atomization flash-evaporation jar is made up of drum, atomization spray cap, the import and export of high temperature steam flow, pressure controlled valve outlet end.
Said pressure controlled valve is the reduction valve or the control valve that can keep automatically with pilot pressure.
Said complementary boiler can use biomass fuel, mineral substance fuel or rock gas, biogas, coal gas, coal-seam gas, coal gas.
This model utility mainly contains following innovative point:
1, make heat-transfer working medium after directly will softening purified water atomizing, cost is lower.
2, linear focusing reinforcement heat collecting pipe has augmentation of heat transfer and working medium is carried out disturbance and destroyed the effect that the current stabilization layer is realized turbulent flow, can increase substantially photo-thermal conversion efficiency, reduces emissivity.
3, conduction oil or fused salt be heat-transfer working medium also can be heat-storage medium.
4, the Stirling-electric hybrid generating efficiency is higher, can reduce cost of electricity-generating significantly.
5, make full use of the heat accumulation function, guarantee uninterrupted power generation, prolong generating dutation.
6, whole device construction is simple, and reliability is high, is particularly suitable for doing the distribution energy.
Description of drawings
Fig. 1 is an atomized steam heat generating schematic representation of the present invention
Fig. 2 is a conduction oil heat generating schematic representation of the present invention
Fig. 3 is a fused salt heat generating schematic representation of the present invention
Wherein 1, parabola groove optically focused array, 2, linear focusing strengthens heat collecting pipe, 3, atomizer, 4, the atomization flash-evaporation jar; 5, pressure pump, 6, pressure controlled valve, 7, the heat exchange heat reservoir, 8, heat-storage medium; 9, middle low temperature stirling generator, 10, the condensation water storage container, 11, modulating valve, 12, complementary boiler
Embodiment
Adopt softening purified water to make heat-transfer working medium; At parabola groove optically focused array front end atomizer is set; Atomizer outlet connecting line focuses on strengthens the heat collecting pipe import; Linear focusing is strengthened the heat collecting pipe outlet and is connected the import of atomization flash-evaporation jar, and the outlet of atomization flash-evaporation jar connects next parabola groove optically focused array to produce superheated vapor; The parabola groove optically focused array outlet that produces superheated vapor connects heat exchange heat reservoir entrance point; Heat exchange heat reservoir outlet end connects the import of condensation water storage container; The atomization flash-evaporation jar is provided with atomizer, and the atomizer import connects pressure pump; Another outlet of atomization flash-evaporation jar connects pressure controlled valve, and pressure controlled valve one end connects the condensation water storage container; The condensation water storage container connects pressure pump, and the pressure pump outlet connects two atomizers respectively; The hot junction of several stirling generators is arranged on the corresponding interface of heat exchange heat reservoir; Complementary boiler connects pressure pump and the import of heat exchange heat reservoir; Heat-storage medium is a fused salt.
Adopt conduction oil to make heat-transfer working medium, fused salt is made heat-storage medium, and pressure pump is the high temperature heat conductive oil pump, and the heat exchange heat reservoir is oily salt heat exchange.Or directly use conduction oil to make heat-storage medium, but need to strengthen heat exchange heat reservoir capacity.
Adopt fused salt to make heat-transfer working medium, tubular exchanger can be set, but must guarantee that complementary boiler continues in time, guarantee under the situation of unglazed photograph to prevent that for device provides deposit heat energy fused salt from solidifying whole device of destruction and equipment.
Stirling generator is provided with quantity and selects according to generating scale and demand, gives full play to the advantage of doing distributed energy.
Claims (8)
1. low temperature Stirling thermal electric generator is strengthened heat collecting pipe, heat-conducting work medium, atomizer, atomization flash-evaporation jar, pressure pump, pressure controlled valve, heat exchange heat reservoir, heat-storage medium, middle low temperature stirling generator, condensation water storage container, modulating valve, transfer line, complementary boiler, optically focused array cluster PCL controller by parabola groove optically focused array, linear focusing in the groove type solar; Hydraulic pressure or turbine and worm driver are formed, and it is characterized in that: make heat-transfer working medium after directly will softening the purified water atomizing; Parabola groove optically focused array front end is provided with atomizer, and atomizer outlet connecting line focuses on strengthens the heat collecting pipe import, and linear focusing is strengthened the heat collecting pipe outlet and connected the import of atomization flash-evaporation jar, and the outlet of atomization flash-evaporation jar connects next parabola groove optically focused array to produce superheated vapor; The parabola groove optically focused array outlet that produces superheated vapor connects heat exchange heat reservoir entrance point; Heat exchange heat reservoir outlet end connects the import of condensation water storage container; The atomization flash-evaporation jar is provided with atomizer, and the atomizer import connects pressure pump; Another outlet of atomization flash-evaporation jar connects pressure controlled valve, and pressure controlled valve one end connects the condensation water storage container; The condensation water storage container connects pressure pump, and the pressure pump outlet connects two atomizers respectively; The hot junction of several stirling generators is arranged on the corresponding interface of heat exchange heat reservoir; Complementary boiler is connected in parallel between pressure pump outlet and the import of heat exchange heat reservoir; Heat-storage medium is a fused salt; Modulating valve is arranged in the pipeline.
2. low temperature Stirling thermal electric generator in the groove type solar according to claim 1 is characterized in that: adopt conduction oil or fused salt to make heat-transfer working medium; The outlet of parabola groove optically focused array connects the import of heat exchange heat reservoir, and the outlet of heat exchange heat reservoir connects the pressure pump entrance point, and the pressure pump outlet end connects the import of parabola groove optically focused array; Middle low temperature stirling generator becomes array-type order distributed and arranged at heat exchange heat reservoir periphery; Middle low temperature stirling generator hot junction is installed in the corresponding interface of heat exchange heat reservoir; Adopt the complementary boiler of conduction oil working medium parallelly connected with pressure pump and heat exchange heat reservoir; Adopt the complementary boiler of fused salt working medium to be connected between outlet of parabola groove optically focused array and the import of heat exchange heat reservoir.
3. low temperature Stirling thermal electric generator in the groove type solar according to claim 1; It is characterized in that: the metal inner pipe that said linear focusing is strengthened heat collecting pipe is annular or the regular node metal inner pipe that raises into bud of spirality or metal tube surface with forced heat exchanging function; Impel heat exchange medium to become laminar heat transfer and be turbulent heat transfer, can carry the internal pressure that is not less than 10Mpa simultaneously; Also can use metal straight pipe when adopting conduction oil or fused salt to make heat-transfer working medium.
4. low temperature Stirling thermal electric generator in the groove type solar according to claim 1 is characterized in that: in the said heat exchange heat reservoir tubular exchanger is set, material inlet, pressure regulator valve and pressure transducer are set; Adopt conduction oil or fused salt to make heat-transfer working medium tubular exchanger can be set, but the temperature balance stirring apparatus will be set.
5. low temperature Stirling thermal electric generator in the groove type solar according to claim 1 is characterized in that: said pressure pump is high-temperature melting salt pump, Heat-transfer Oil Pump or water pump.
6. low temperature Stirling thermal electric generator in the groove type solar according to claim 1 is characterized in that: said atomizer is the device that is provided with atomization spray cap.
7. low temperature Stirling thermal electric generator in the groove type solar according to claim 1 is characterized in that: said atomization flash-evaporation jar is made up of drum, atomization spray cap, the import and export of high temperature steam flow, pressure controlled valve outlet end.
8. low temperature Stirling thermal electric generator in the groove type solar according to claim 1 is characterized in that: said complementary boiler can use biomass fuel, mineral substance fuel or rock gas, biogas, coal gas, coal-seam gas, coal gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100600789A CN102678488A (en) | 2011-03-14 | 2011-03-14 | Groove type solar medium-low temperature sterling thermal generating device |
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| CN2011100600789A CN102678488A (en) | 2011-03-14 | 2011-03-14 | Groove type solar medium-low temperature sterling thermal generating device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147944A (en) * | 2013-01-29 | 2013-06-12 | 华北电力大学 | Two-section tower type solar thermal power generation system |
| CN103410688A (en) * | 2013-06-09 | 2013-11-27 | 冯智勇 | High-efficiency trench type solar energy photo-thermal power generation CSP system |
| CN103438591A (en) * | 2013-08-30 | 2013-12-11 | 华北电力大学 | Novel trench-type solar recirculating heat collection system |
| CN103726998A (en) * | 2012-10-12 | 2014-04-16 | 上海工电能源科技有限公司 | Cluster-type solar thermal power generation system |
| CN104089408A (en) * | 2014-07-01 | 2014-10-08 | 福建工程学院 | Solar heat absorber with afterburning device |
| CN106837719A (en) * | 2017-03-31 | 2017-06-13 | 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 | A kind of heat storage type voltage stabilizing Stirling electricity generation system |
| CN113090480A (en) * | 2021-04-29 | 2021-07-09 | 姜铁华 | Solar heat collection liquid medium energy storage driving Stirling engine power generation system |
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| CN201593484U (en) * | 2009-12-07 | 2010-09-29 | 张建城 | Trench-type solar-energy atomizing flash-evaporating thermal generating set |
| CN201963504U (en) * | 2011-03-14 | 2011-09-07 | 张建城 | Medium low-temperature Stirling generating arranged of groove solar |
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2011
- 2011-03-14 CN CN2011100600789A patent/CN102678488A/en active Pending
Patent Citations (4)
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| US5743111A (en) * | 1994-09-19 | 1998-04-28 | Hitachi, Ltd. | Air conditioner system having a refrigerant distributor and method of making same |
| CN101048593A (en) * | 2004-09-07 | 2007-10-03 | 菲利普·马克·蒙特希诺斯 | Production of hydrogen using low-energy solar energy |
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| CN201963504U (en) * | 2011-03-14 | 2011-09-07 | 张建城 | Medium low-temperature Stirling generating arranged of groove solar |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726998A (en) * | 2012-10-12 | 2014-04-16 | 上海工电能源科技有限公司 | Cluster-type solar thermal power generation system |
| CN103726998B (en) * | 2012-10-12 | 2017-12-05 | 上海工电能源科技有限公司 | Concentrating type solar heat power generation system |
| CN103147944A (en) * | 2013-01-29 | 2013-06-12 | 华北电力大学 | Two-section tower type solar thermal power generation system |
| CN103410688A (en) * | 2013-06-09 | 2013-11-27 | 冯智勇 | High-efficiency trench type solar energy photo-thermal power generation CSP system |
| CN103438591A (en) * | 2013-08-30 | 2013-12-11 | 华北电力大学 | Novel trench-type solar recirculating heat collection system |
| CN104089408A (en) * | 2014-07-01 | 2014-10-08 | 福建工程学院 | Solar heat absorber with afterburning device |
| CN106837719A (en) * | 2017-03-31 | 2017-06-13 | 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 | A kind of heat storage type voltage stabilizing Stirling electricity generation system |
| CN113090480A (en) * | 2021-04-29 | 2021-07-09 | 姜铁华 | Solar heat collection liquid medium energy storage driving Stirling engine power generation system |
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Application publication date: 20120919 |