CN102200104B - Focusing phase-change memory solar energy photothermal generation system under parabolic mirror - Google Patents
Focusing phase-change memory solar energy photothermal generation system under parabolic mirror Download PDFInfo
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- CN102200104B CN102200104B CN2011101085215A CN201110108521A CN102200104B CN 102200104 B CN102200104 B CN 102200104B CN 2011101085215 A CN2011101085215 A CN 2011101085215A CN 201110108521 A CN201110108521 A CN 201110108521A CN 102200104 B CN102200104 B CN 102200104B
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- focusing
- heating box
- steam turbine
- solar energy
- parabolic
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 31
- 238000010248 power generation Methods 0.000 claims description 9
- 230000009466 transformation Effects 0.000 claims description 9
- 239000006200 vaporizer Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 8
- 239000012782 phase change material Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000010512 thermal transition Effects 0.000 description 1
Images
Classifications
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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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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention provides a focusing phase-change memory solar energy photothermal generation system under a parabolic mirror, belongs to the field of solar energy medium-high comprehensive utilization, and mainly solves the problem of small-scale high-efficiency photothermal generation. The system is characterized in that: a large parabolic reflection device and a small parabolic reflection device are positioned on the upper side and have a common focus; the focuses are superposed spatially, and a helical focusing device is arranged or fixed on the focusing position; the inner wall of an insulating tank is provided with an absorbing layer or an absorber; a rotating shaft is arranged between a reflection surface and the insulating tank; the insulating tank is positioned on the lower side; a solid phase-change material is arranged in the insulating tank; a light transmitting hole is position on the origin under the large parabolic surface; a heat exchange system is arranged in the insulating tank, and is connected with an evaporator or a Stirling engine; the evaporator is connected with a steam turbine; a cooling system is connected with a water heater; and the steam turbine or the Stirling engine is connected with a generator. The mode has high heat conversion efficiency, can generate electricity at any time, and is not restricted by lighting at night or in rainy days, so that the focusing phase-change memory solar energy photothermal generation system under the parabolic mirror facilitates production and household use of people.
Description
Technical field: high-efficiency solar photothermal power generation
Background technique:
In the solar energy in the high temperature utilization fused salt phase-change material obtained broad research and be applied in some field, but small-sized, that efficient is higher, cheaply, be fit to common people and use photothermal power generation technology and immature.
Summary of the invention:
The problems such as the solar light-heat power-generation ubiquity is larger at present, cost is higher, cooling water resources is short, efficiency is lower.Focusing phase transformation stores and can address the above problem by solar-thermal generating system under the parabolic mirror.
Summary of the invention is: the focal position that changes the point focusing mode, adopt under the parabolic reflector focusing, adopt light concentrating times to produce high temperature at the high power concentrator of 600-2000, adopt 500 °-1000 ° high-temperature phase-change fused salt technology, be specially: small one and large one parabolic reflector device is positioned at the top and common focus is arranged, focus overlaps at the space mounting position, spiral focusing adjusment or fixing is placed at the focus place, the HEATING BOX inwall is made absorbed layer or is put in addition an adsorber, rotatingshaft is between reflective surface and HEATING BOX, HEATING BOX is positioned at the below, the phase transformation material is housed, phase transition temperature 500-1000 ℃ in the HEATING BOX, large parabolic reflector is connected with rotatingshaft, rotatingshaft is connected with support, and light-passing hole is positioned at the initial point place, below of large-scale parabolic reflector, the built-in heat-exchange system of HEATING BOX, heat-exchange system links to each other with vaporizer or Stirling-electric hybrid, vaporizer links to each other with steam turbine, and cooling system links to each other with water heater, and steam turbine or Stirling-electric hybrid link to each other with generator.
Because this mode thermal transition efficient is higher, can reach 70% of tower-type electricity generation, phase transition temperature is higher, the conversion ratio of photothermal power generation is higher, and whole efficiency is higher, and heat energy is fully used, and can generate electricity at any time, be not subjected to night, overcast and rainy unglazed according to restriction, have energy storage just can generate electricity, can reduce large-scale or small-sized solar utilizes cost and is convenient for people to produce, live use.
Description of drawings
Accompanying drawing 1 is high temperature solar structural representation in the fixed phase transformation of lower header.Fig. 2 is high temperature solar structural representation during water tank becomes with parabolic rotary type case., wherein 1, focus place spiral focusing adjusment or fixing device; 2, small-sized parabolic reflector or class parabolic reflector; 3, large-scale parabolic reflector or class parabolic reflector; 4, edge reflections light; 5, focused ray; 6, rotatingshaft; 7, thermal insulation layer; 8, HEATING BOX; 9,45° angle; 10, support; 11, absorbed layer; 12, light-passing hole.
Embodiment
Once illustrate by reference to the accompanying drawings: in Fig. 1 and Fig. 2, parabolic reflector device 2 and 3 is positioned at the top and common focus is arranged, its focus overlaps at the space mounting position, spiral focusing adjusment or fixing device 1 are placed by the focus place, but fine rotation makes more sunlight reflection ray enter in the HEATING BOX 8 by light-passing hole 12, this considers that mainly sunlight is not only " parallel light beam ", also has the part scattered light, the purpose of focusing is to guarantee in parallel light focusing that a part of scattered light enters in the HEATING BOX by light-passing hole repeatedly to be absorbed by medium, increases absorption efficiency.Can directly fix after the focusing, eliminate the focusing function.The HEATING BOX inwall is made absorbed layer or is put in addition an adsorber, can add in the outside of absorbed layer one deck reflecting layer better heat preservation again.Rotatingshaft is between reflective surface 3 and HEATING BOX 8, and namely near the light-passing hole, purpose is to reduce the rotation space scope of reflective surface 3, makes rotatingshaft in this position simultaneously and also can make the HEATING BOX slewing area less.HEATING BOX also can be motionless, for example HEATING BOX pattern shown in Figure 1.The motionless link that can better be beneficial between individuality of HEATING BOX.HEATING BOX 8 is positioned at the below, and the phase transformation material is housed in it.Can become liquid, stored energy after reaching uniform temperature.The Placement of this device is: spiral regulating device 1 is connected with being connected with reflective surface 2 by support, reflective surface 3 is connected connection with rotatingshaft, rotatingshaft 6 is connected (Fig. 2) with support, rotatingshaft 6 connects with fixing HEATING BOX 8 and makes side rotatingshaft (shown in Figure 1) on HEATING BOX top.Initial point place, below and the opening above the HEATING BOX 8 that light-passing hole 12 is positioned at parabolic reflector 3 are also referred to as light-passing hole.The HEATING BOX light-passing hole can add a light-operated valve, has the light time to open, and closes when unglazed, is convenient to insulation.
Power generation system mainly is to generate electricity at any time by the phase-change material that stores in the HEATING BOX.The efficient of solar energy thermal-power-generating is two factors: the one, and thermal absorption efficient, the 2nd, the temperature of thermmal storage.Thermal absorption efficient is the basis of improving hot generating efficiency, and the temperature of thermmal storage is to improve the key of thermoelectric conversion efficiency, therefore, as long as outside the phase-change material of high temperature, connects traditional heat generating system and gets final product.It is powerful but mostly present steam turbine is, rarely low power, is subject to steam turbine or Stirling-electric hybrid for family or small-scale hot development of generating electricity.But the mechanical technique development is very ripe, should not form restraining factors to generating electricity on a small scale in principle, therefore this kind method can improve the efficient of small-sized solar photothermal power generation and the cost of reduction small-sized solar photothermal power generation, almost the hot forms of electricity generation with existing is identical for the later hot generation technology of thermmal storage: i.e. HEATING BOX 8 built-in heat-exchange systems, heat-exchange system links to each other with vaporizer or Stirling-electric hybrid, vaporizer links to each other with steam turbine, exhaust steam cooling system after the steam turbine acting links to each other with water heater, and steam turbine or Stirling-electric hybrid link to each other with generator.
In sum: focusing phase transformation stores and can belong to middle high temperature comprehensive utilization field by solar-thermal generating system under the parabolic mirror, it is characterized in that: parabolic reflector device 2 and 3 is positioned at the top and common focus is arranged, focus overlaps at the space mounting position, spiral focusing adjusment or fixing device 1 are placed by the focus place, but fine rotation, or fixing after the focusing, eliminate focusing adjusment, the HEATING BOX inwall is made absorbed layer or is put in addition an adsorber, rotatingshaft is between reflective surface 3 and HEATING BOX 8, HEATING BOX 8 is positioned at the below, 8 are equipped with the phase transformation material in the HEATING BOX, phase transition temperature 500-1000 ℃, spiral focusing adjusment or fixing device 1 are connected with being connected with reflective surface 2 by support, reflective surface 3 is connected connection with rotatingshaft, rotatingshaft 6 is connected with support, light-passing hole 12 is positioned at the initial point place, below of parabolic reflector 3, HEATING BOX 8 built-in heat-exchange systems, heat-exchange system links to each other with vaporizer or Stirling-electric hybrid, vaporizer links to each other with steam turbine, exhaust steam cooling system after the steam turbine acting links to each other with water heater, and steam turbine or Stirling-electric hybrid link to each other with generator.
Claims (1)
1. focusing phase transformation stores the solar light-heat power-generation system under the parabolic mirror, belong to middle high temperature comprehensive utilization field, it is characterized in that: the first parabolic reflector device and the second parabolic reflector device are positioned at the top and common focus are arranged, focus overlaps at the space mounting position, the spiral focusing adjusment is placed at the focus place, but fine rotation, or fixing after the focusing, eliminate focusing adjusment, the HEATING BOX inwall is made absorbed layer or is put in addition an adsorber, rotatingshaft is between the second reflective surface and HEATING BOX, HEATING BOX is positioned at the below, the phase transformation material is housed in the HEATING BOX, phase transition temperature 500-1000 ° of C, spiral focusing adjusment or fixing device by support and the first reflective surface be connected reflective surface and be connected, the second reflective surface is connected with rotatingshaft, rotatingshaft is connected with support, light-passing hole is positioned at the initial point place, below of the second parabolic reflector, the built-in heat-exchange system of HEATING BOX, heat-exchange system links to each other with vaporizer or Stirling-electric hybrid, vaporizer links to each other with steam turbine, and the cooling system after the steam turbine acting links to each other with water heater, and steam turbine or Stirling-electric hybrid link to each other with generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101085215A CN102200104B (en) | 2011-04-21 | 2011-04-21 | Focusing phase-change memory solar energy photothermal generation system under parabolic mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101085215A CN102200104B (en) | 2011-04-21 | 2011-04-21 | Focusing phase-change memory solar energy photothermal generation system under parabolic mirror |
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| Publication Number | Publication Date |
|---|---|
| CN102200104A CN102200104A (en) | 2011-09-28 |
| CN102200104B true CN102200104B (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101085215A Expired - Fee Related CN102200104B (en) | 2011-04-21 | 2011-04-21 | Focusing phase-change memory solar energy photothermal generation system under parabolic mirror |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344886A (en) * | 2011-10-28 | 2012-02-08 | 无锡同春新能源科技有限公司 | Methane generating pit with methane generation rate increased by complementary solar photothermal power generation and wind power generation |
| CN106321167B (en) * | 2015-06-19 | 2018-10-16 | 北京兆阳光热技术有限公司 | A kind of steam turbine cooling heat radiation system in photo-thermal power station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2231781Y (en) * | 1995-04-16 | 1996-07-24 | 赵国柱 | Full-sunshiny four-seasons solar water heater |
| CN2278899Y (en) * | 1996-05-11 | 1998-04-15 | 罗国平 | Solar cooker |
| CN202040033U (en) * | 2011-04-21 | 2011-11-16 | 冯益安 | Parabolic reflector lower-focusing type phase change energy-storage photo-thermal generating system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11325612A (en) * | 1998-05-11 | 1999-11-26 | Takao Shishido | Folding solar cooker |
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2011
- 2011-04-21 CN CN2011101085215A patent/CN102200104B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2231781Y (en) * | 1995-04-16 | 1996-07-24 | 赵国柱 | Full-sunshiny four-seasons solar water heater |
| CN2278899Y (en) * | 1996-05-11 | 1998-04-15 | 罗国平 | Solar cooker |
| CN202040033U (en) * | 2011-04-21 | 2011-11-16 | 冯益安 | Parabolic reflector lower-focusing type phase change energy-storage photo-thermal generating system |
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| CN102200104A (en) | 2011-09-28 |
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Owner name: ANYANG POWER SUPPLY COMPANY, STATE GRID HENAN ELEC Effective date: 20141128 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: FENG YIAN Effective date: 20141128 |
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Free format text: CORRECT: ADDRESS; FROM: 264006 YANTAI, SHANDONG PROVINCE TO: 100031 XICHENG, BEIJING |
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Effective date of registration: 20141128 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: ANYANG POWER SUPPLY COMPANY, STATE GRID HENAN ELECTRIC POWER CO., LTD. Address before: 264006 prosperous solar energy No. 46, Jinsheng District, Yantai Development Zone, Shandong Patentee before: Feng Yian |
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Granted publication date: 20130109 Termination date: 20160421 |
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| CF01 | Termination of patent right due to non-payment of annual fee |