CN102734095A - Slotted solar intermediate/low-temperature ORC (organic rankine cycle) thermal power generator - Google Patents
Slotted solar intermediate/low-temperature ORC (organic rankine cycle) thermal power generator Download PDFInfo
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- CN102734095A CN102734095A CN2011100863623A CN201110086362A CN102734095A CN 102734095 A CN102734095 A CN 102734095A CN 2011100863623 A CN2011100863623 A CN 2011100863623A CN 201110086362 A CN201110086362 A CN 201110086362A CN 102734095 A CN102734095 A CN 102734095A
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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
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- 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 relates to a slotted solar intermediate/low-temperature ORC (organic rankine cycle) thermal power generator, consisting of a parabolic trough light-condensing array, a linear focusing strengthening heat collecting tube, a heat-conduction working medium, a heat exchanger, an atomizer, an atomization flash evaporation tank, a pressure pump, a pressure control valve, a heat storage device, a heat-storage working medium, an intermediate/low-temperature ORC power unit, an organic evaporating agent tank, an evaporator, a condenser, an air cooling machine set, a regulating valve, a transmission pipeline, a complementary boiler, a light-condensing array cluster PLC (programmable logic controller), and a hydraulic or turbine worm driver. According to the slotted solar intermediate/low-temperature ORC thermal power generator disclosed by the invention, the heat storage device supplies heat to an intermediate/low-temperature ORC power machine by taking atomized water vapor, glycol, heat-conducting oil or fused salt as a heat-transfer working medium so that the intermediate/low-temperature ORC power machine is directly driven to realize solar heat collection power generation. The slotted solar intermediate/low-temperature ORC thermal power generator disclosed by the invention belongs to the field of solar energy heat utilization.
Description
Technical field
The present invention relates to the device of low temperature organic Rankine (ORC) generator set realization solar energy thermal-power-generating (CSP) in a kind of employing groove type solar driving, this technology belongs to solar energy heat utilization field.
Background technique
Trough type solar power generation (CSP) has been realized commercialized running; Compare tower, dish formula and reflection Fresnel heat build-up generating has outstanding features such as scale is big, concentration degree is high, efficient height; The fused salt energy-storage function of particularly having realized makes solar energy thermal-power-generating have the technical foundation of competing with fossil energy.But existing trough type solar power generation must equally adopt the thermodynamic cycle of steam Rankine with coal power generation, needs a large amount of water to cool off, and this just makes trough type solar power generation on Environmental Conditions and region, be restricted.At present; Once the hot generation technology of the organic Rankine that in geothermal power generation, played a significant role (ORC) progressively combines with solar energy; Its reason is that both working conditions are progressively approaching; The exploitation and the use of low temperature organic working medium cause conversion efficiency of thermoelectric to increase substantially in particularly novel, have satisfied the trough type solar power generation technical requirements.NREL has done summary to relevant groove type solar organic Rankine (ORC) in-2005 in 2000 electric power system optimization and economics research in March, 2006 in the SR-550-39433 report; Yet development so far; The hot generation technology of groove type solar organic Rankine does not have breakthrough; Its key is that various groove type solar organic Rankines (ORC) technology path that thermal electric generator adopted that occurred in recent years is almost identical with geothermal power generation; Its heat accumulation is also just simple to be inserted; The advantage that worst cold case and trough type solar power generation have an energy storage in the hot generation technology of organic Rankine (ORC) being adapted to organically combines, so the hot generating of groove type solar organic Rankine (ORC) can't realize extensive installation.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 heat collecting pipe and system zero parts are also had higher requirement, cause cost to improve.Can energy storage and organic Rankine (ORC) the technology advantage separately of consume water not if give full play to groove type solar; Under middle worst cold case condition, realize having complementary advantages; Just can reduce significantly and make and cost of electricity-generating; Improve trough type solar power generation adaptability, create advantage, and then realize energy substitution with the competition of the fossil energy.
Summary of the invention
The present invention is exactly for realizing low temperature organic Rankine (ORC) thermal electric generator in the groove type solar that groove type solar and the technological mutual supplement with each other's advantages of middle low temperature organic Rankine (ORC) sets up.
The present invention strengthens heat collecting pipe, heat-conducting work medium, heat exchanger, atomizer, atomization flash-evaporation jar, pressure pump, pressure controlled valve, heat reservoir, heat accumulation working medium, middle low temperature organic Rankine (ORC) power unit, organic evaporating agent jar, vaporizer, condenser, Air-cooled Unit, modulating valve, transfer line, complementary boiler, optically focused array cluster PLC 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 making water fogging; Parabola groove optically focused array front end is provided with atomizer; The atomizer import connects pressure pump; 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 superheat section parabola groove optically focused array to produce superheated vapor; Superheated vapor directly gets into heat reservoir; Perhaps the saturated vapour of parabola groove optically focused array generation directly gets into heat reservoir.The heat reservoir outlet end connects condenser inlet; Another outlet of atomization flash-evaporation jar connects pressure controlled valve, and pressure controlled valve one end connects condenser; Condensator outlet connects pressure pump, and the pressure pump outlet connects two atomizers respectively; The vaporizer of one or several organic Rankine power engines is arranged in the heat reservoir; Or the vaporizer layering or the subregion of several organic Rankine power units be arranged in corresponding layering of heat reservoir or the subregion; Perhaps set up several heat reservoirs, be connected in parallel in the parabola groove optically focused array, the vaporizer of organic Rankine power unit is separately positioned in several heat reservoirs; Vaporizer is imported and exported and is connected pressure pump outlet and the import of organic Rankine power engine respectively; Complementary boiler is connected in parallel between pressure pump outlet and the heat reservoir import; Heat accumulation working medium is liquid phase-change or solid-state sensible heat heat accumulation working medium, like the solid matter of fused salt, conduction oil, concrete, pottery or graphitiferous and aluminum metallic material; Heat-conducting work medium is ethylene glycol or conduction oil or fused salt or atomized steam; The vaporizer of organic Rankine heat generating system is set directly in the condenser of groove type solar steam Rankine cycle; The organic Rankine power engine that maybe will adapt to the different temperatures operating mode is arranged in proper order, and next stage low temperature organic Rankine vaporizer is arranged in the upper level in the warm organic Rankine condenser, realizes the step heat utilization.
Said vaporizer is pipe-coil type evaporator or shell and tube evaporator.
Said complementary boiler and parabola groove optically focused array serial or parallel connection; Conduction oil or fused salt are promptly made heat-transfer working medium also can make heat accumulation working medium; The outlet of parabola groove optically focused array connects the heat reservoir import, and the heat reservoir outlet connects the pressure pump entrance point, and the pressure pump outlet end connects the import of parabola groove optically focused array; Adopt the complementary boiler of conduction oil parallelly connected with the optically focused array; Adopt the complementary boiler of fused salt to connect with the optically focused array.
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 ethylene glycol, conduction oil or fused salt to make heat-transfer working medium.
Said heat reservoir is the container of splendid attire liquid phase-change heat accumulation working medium or the solid heat vessel that has heat transfer pipe; Solar heat input end heat exchanger and tubular evaporator are set in the heat reservoir; Material inlet, pressure regulator valve and pressure transducer are set; Adopt conduction oil or fused salt to do in the heat reservoir of heat-transfer working medium tubular exchanger not to 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 invention mainly contains following innovative point:
1, make heat-transfer working medium after directly making water fogging, 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, increases substantially photo-thermal conversion efficiency, reduces emissivity.
3, ethylene glycol, conduction oil or fused salt be heat-transfer working medium also can be heat-storage medium.
4, worst cold case during the organic Rankine generator set adapts to, generating efficiency is higher, can reduce cost of electricity-generating significantly, is particularly suitable for using in the bigger area of the temperature difference.
5, make full use of the heat accumulation function, number is guaranteed uninterrupted power generation when prolonging generating.
6, whole device construction is simple, and scale is changeable, 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 that conduction oil layering of the present invention is provided with heat generating schematic representation
Fig. 3 is that fused salt subregion of the present invention is provided with heat generating schematic representation
Fig. 4 is that parallel connection of the present invention is provided with the heat reservoir schematic representation
Fig. 5, Fig. 6 are organic Rankine dynamic power unit 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, heat reservoir, 8, heat accumulation working medium, 9, middle low temperature organic Rankine (ORC) power unit, 10, condenser; 11, modulating valve, 12, complementary boiler, 13, Air-cooled Unit, 14, organic evaporating agent jar; 15, organic Rankine power engine, 16, generator, 17, vaporizer, 18, heat exchanger
Embodiment
Make heat-transfer working medium after directly making water fogging; Parabola groove optically focused array front end is provided with atomizer; The atomizer import connects pressure pump; 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; Superheated vapor directly gets into heat reservoir; Perhaps the saturated vapour of parabola groove optically focused array generation directly gets into heat reservoir.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; Low temperature organic Rankine (0RC) power unit vaporizer in several is arranged on the corresponding interface of heat reservoir; Complementary boiler connects pressure pump and heat reservoir import.
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 heat exchanger is oily salt heat exchange; Or directly use conduction oil to make heat-storage medium, but need to strengthen the heat reservoir capacity.
Adopt fused salt to make heat-transfer working medium, heat 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.
Middle low temperature organic Rankine (ORC) power unit is provided with quantity and selects according to generating scale and demand, gives full play to the trough type solar power generation advantage.
The vaporizer of organic Rankine heat generating system is set directly in the condenser of groove type solar steam Rankine cycle; The organic Rankine power unit that maybe will adapt to the different temperatures operating mode is arranged in proper order, and next stage low temperature organic Rankine vaporizer is arranged in the upper level in the warm organic Rankine condenser, realizes the step heat utilization.As shown in Figure 6.
Claims (9)
1. low temperature organic Rankine (ORC) thermal electric generator is strengthened heat collecting pipe, heat-conducting work medium, heat exchanger, atomizer, atomization flash-evaporation jar, pressure pump, pressure controlled valve, heat reservoir, heat accumulation working medium, middle low temperature organic Rankine (ORC) power unit, organic evaporating agent jar, vaporizer, condenser, Air-cooled Unit, modulating valve, transfer line, complementary boiler, optically focused array cluster PLC 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:
1) makes heat-transfer working medium after directly making water fogging; Parabola groove optically focused array front end is provided with atomizer; The atomizer import connects pressure pump; 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 superheat section parabola groove optically focused array to produce superheated vapor; Superheated vapor directly gets into heat reservoir; Perhaps the saturated vapour of parabola groove optically focused array generation directly gets into heat reservoir; The heat reservoir outlet end connects condenser inlet; The atomization flash-evaporation jar is provided with atomizer, and another outlet of atomization flash-evaporation jar connects pressure controlled valve, and pressure controlled valve one end connects condenser; Condensator outlet connects pressure pump, and the pressure pump outlet connects two atomizers respectively;
2) vaporizer with one or several organic Rankine power engines is arranged in the heat reservoir; Or the vaporizer layering or the subregion of several organic Rankine power units be arranged in corresponding layering of heat reservoir or the subregion; Perhaps set up several heat reservoirs, parallelly connected with the slot light collection array, the vaporizer of organic Rankine power unit is separately positioned in several heat reservoirs; Vaporizer is imported and exported and is connected pressure pump outlet and the import of organic Rankine power engine respectively;
3) heat accumulation working medium is liquid phase-change or solid-state sensible heat heat accumulation working medium, like the solid matter of fused salt, conduction oil, concrete, pottery or graphitiferous and aluminum metallic material;
4) heat-conducting work medium is ethylene glycol, conduction oil, fused salt, atomized steam;
5) vaporizer with the organic Rankine heat generating system is set directly in the condenser of steam Rankine cycle trough type solar power generation system; Or arrange in proper order by the organic Rankine power engine that adapts to the different temperatures operating mode, next stage low temperature organic Rankine vaporizer is arranged in the upper level in the warm organic Rankine condenser, realize the step heat utilization.
2. low temperature organic Rankine (ORC) thermal electric generator in the groove type solar according to claim 1 is characterized in that: said complementary boiler and parabola groove optically focused array serial or parallel connection; Conduction oil or fused salt are promptly made heat-transfer working medium and are also made heat accumulation working medium; The outlet of parabola groove optically focused array connects the heat reservoir import, and the heat reservoir outlet connects the pressure pump entrance point, and the pressure pump outlet end connects the import of parabola groove optically focused array; Adopt the complementary boiler of conduction oil parallelly connected with parabola groove optically focused array; Adopt the complementary boiler of fused salt to connect with parabola groove optically focused array.
3. low temperature organic Rankine (ORC) 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 organic Rankine (ORC) thermal electric generator in the groove type solar according to claim 1 is characterized in that: said heat reservoir is the container of splendid attire liquid phase-change heat accumulation working medium or the solid heat vessel that has heat transfer pipe; Solar heat input end heat exchanger and tubular evaporator are set in the heat reservoir; Material inlet, pressure regulator valve and pressure transducer are set; Adopt conduction oil or fused salt to do in the heat reservoir of heat-transfer working medium tubular exchanger not to be set, but the temperature balance stirring apparatus will be set.
5. low temperature organic Rankine (ORC) thermal electric generator in the groove type solar according to claim 1, it is characterized in that: said vaporizer is pipe-coil type evaporator or shell and tube evaporator.
6. low temperature organic Rankine (ORC) thermal electric generator in the groove type solar according to claim 1, it is characterized in that: said pressure pump is high-temperature melting salt pump, Heat-transfer Oil Pump or water pump.
7. low temperature organic Rankine (ORC) thermal electric generator in the groove type solar according to claim 1, it is characterized in that: said atomizer is the device that is provided with atomization spray cap.
8. low temperature organic Rankine (ORC) 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.
9. low temperature organic Rankine (ORC) thermal electric generator in the groove type solar according to claim 1, it 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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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103821680A (en) * | 2012-11-19 | 2014-05-28 | 杨建军 | Novel city thermal power plant |
| CN103953909A (en) * | 2014-04-30 | 2014-07-30 | 李泽明 | Distributed all-weather solar steamer set |
| CN104236130A (en) * | 2014-08-01 | 2014-12-24 | 中国东方电气集团有限公司 | Heat storage system used for solar photo-thermal power generation system and control method of heat storage system |
| CN104612918A (en) * | 2015-01-30 | 2015-05-13 | 天津大学 | Normal pressure type solar combined heat and power generation system |
| CN105715470A (en) * | 2016-03-16 | 2016-06-29 | 碧海舟（北京）节能环保装备有限公司 | Natural gas pressure regulation station and solar comprehensive power generation system |
| CN105888996A (en) * | 2015-01-23 | 2016-08-24 | 张建城 | Multi-mode tower-type solar thermal power generation device |
| CN105888995A (en) * | 2015-01-23 | 2016-08-24 | 张建城 | Trough type solar moderate and high temperature integrated heat power generation device |
| CN105888994A (en) * | 2014-11-18 | 2016-08-24 | 张建城 | Light-gathering solar power storage generating device |
| CN106164419A (en) * | 2014-03-14 | 2016-11-23 | 伊顿公司 | ORC system electromotor close down after stress management |
| CN111207526A (en) * | 2020-03-04 | 2020-05-29 | 云南电网有限责任公司电力科学研究院 | Heat storage system based on combination of light heat storage and phase-change heat storage |
| CN111927724A (en) * | 2020-07-28 | 2020-11-13 | 华中科技大学 | Design method for heat collection field of partitioned trough type solar thermal power generation system |
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- 2011-04-07 CN CN2011100863623A patent/CN102734095A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103821680A (en) * | 2012-11-19 | 2014-05-28 | 杨建军 | Novel city thermal power plant |
| CN106164419A (en) * | 2014-03-14 | 2016-11-23 | 伊顿公司 | ORC system electromotor close down after stress management |
| CN103953909A (en) * | 2014-04-30 | 2014-07-30 | 李泽明 | Distributed all-weather solar steamer set |
| CN103953909B (en) * | 2014-04-30 | 2016-03-09 | 齐裕阳光新能源股份有限公司 | A kind of distributed all-weather solar steam unit |
| CN104236130A (en) * | 2014-08-01 | 2014-12-24 | 中国东方电气集团有限公司 | Heat storage system used for solar photo-thermal power generation system and control method of heat storage system |
| CN104236130B (en) * | 2014-08-01 | 2016-08-24 | 中国东方电气集团有限公司 | A kind of heat reservoir for solar light-heat power-generation system and control method thereof |
| CN105888994A (en) * | 2014-11-18 | 2016-08-24 | 张建城 | Light-gathering solar power storage generating device |
| CN105888994B (en) * | 2014-11-18 | 2019-04-12 | 张建城 | Photospot solar electric power storage power generator |
| CN105888995A (en) * | 2015-01-23 | 2016-08-24 | 张建城 | Trough type solar moderate and high temperature integrated heat power generation device |
| CN105888996A (en) * | 2015-01-23 | 2016-08-24 | 张建城 | Multi-mode tower-type solar thermal power generation device |
| CN105888996B (en) * | 2015-01-23 | 2019-02-15 | 张建城 | Multi-mode tower type solar energy thermal power generation device |
| CN105888995B (en) * | 2015-01-23 | 2019-02-15 | 张建城 | Groove type solar high temperature integrated thermal generating device |
| CN104612918A (en) * | 2015-01-30 | 2015-05-13 | 天津大学 | Normal pressure type solar combined heat and power generation system |
| CN105715470A (en) * | 2016-03-16 | 2016-06-29 | 碧海舟（北京）节能环保装备有限公司 | Natural gas pressure regulation station and solar comprehensive power generation system |
| CN111207526A (en) * | 2020-03-04 | 2020-05-29 | 云南电网有限责任公司电力科学研究院 | Heat storage system based on combination of light heat storage and phase-change heat storage |
| CN111207526B (en) * | 2020-03-04 | 2021-07-30 | 云南电网有限责任公司电力科学研究院 | Heat storage system based on combination of light heat storage and phase-change heat storage |
| CN111927724A (en) * | 2020-07-28 | 2020-11-13 | 华中科技大学 | Design method for heat collection field of partitioned trough type solar thermal power generation system |
| CN111927724B (en) * | 2020-07-28 | 2022-07-05 | 华中科技大学 | Design method for heat collection field of partitioned trough type solar thermal power generation system |
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Application publication date: 20121017 |