CN209116569U - A kind of disc type solar energy photo-thermal energy gradient utilization system - Google Patents
A kind of disc type solar energy photo-thermal energy gradient utilization system Download PDFInfo
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- CN209116569U CN209116569U CN201821290170.8U CN201821290170U CN209116569U CN 209116569 U CN209116569 U CN 209116569U CN 201821290170 U CN201821290170 U CN 201821290170U CN 209116569 U CN209116569 U CN 209116569U
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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 utility model relates to a kind of disc type solar energy photo-thermal energy gradient utilization systems, including solar thermal collection system and solar energy utilization system, storage/heat-exchange system is equipped between the solar thermal collection system and the solar energy utilization system, storage/the heat-exchange system includes at least two step storages/heat-exchange system, and each storage/heat-exchange system connects corresponding solar energy utilization system.The system improves energy utilization efficiency using ability Multi-class propagation.
Description
Technical field
The present invention relates to a kind of solar energy utilization system more particularly to a kind of disc type solar energy photo-thermal energy cascade utilization systems
System.
Background technique
Light-focusing type solar is one of the effective means of Solar use using technology.Generally, Salar light-gathering skill
Art has slot type, tower, dish-style, four kinds of Fresnel.Wherein disc type solar energy technology has higher light concentrating times, can reach more
High temperature levels.Also, disc type solar energy technology has the advantage of flexible arrangement, is suitable for Various Complex orographic condition, no
Only greater number of dish-style equipment can be combined to form into scale using independent operating as the Miniature Power Unit of remote districts
Change solar power plant.
Traditional disc type solar energy system is using Stirling-electric hybrid as generating equipment, and cost can occupy any more long, and due to not having
There is heat reservoir, output is influenced by solar energy fluctuation.In addition, there is output form of energy in existing disc type solar energy system
More single phenomenon (predominantly electricity output), disc type solar energy technology width temperature model brought by the height light concentrating times advantage
Enclose to be unable to get and give full play to, it is a large amount of in low-quality heat be unable to get effective use, cause Solar use and conversion to be imitated
Rate is low.
Summary of the invention
The present invention is in order to solve existing disc type solar energy technology wide temperature range brought by the height light concentrating times advantage
Be unable to get and give full play to, it is a large amount of in low-quality heat be unable to get effective use, lead to Solar use and transfer efficiency
Low problem, provides a kind of disc type solar energy photo-thermal energy gradient utilization system, which is improved using ability Multi-class propagation
Energy utilization efficiency.
The technical solution used in the present invention are as follows: a kind of disc type solar energy photo-thermal energy gradient utilization system, including the sun
Energy collecting system and solar energy utilization system, are equipped between the solar thermal collection system and the solar energy utilization system
Storage/heat-exchange system, the storage/heat-exchange system include at least two step storages/heat-exchange system, and each storage/heat-exchange system connects phase
The solar energy utilization system answered, between solar thermal collection system and highest storage/heat-exchange system, solar thermal collection system with it is minimum
It is connected by heat transfer medium channels between grade storage/heat-exchange system, between storage/heat-exchange system of adjacent step, the heat transfer is situated between
Circulation is led to after having the first heat transfer medium, first heat transfer medium to absorb heat in the solar thermal collection system in matter channel
Cross the heat transfer medium channels and be circulated to the highest storage/heat-exchange system release heat, then by heat transfer medium channels according to
The secondary next stage storage/heat-exchange system release heat that is circulated to carries out being back to the solar thermal collection system after discharging heat step by step.
Further, the storage/heat-exchange system include high temperature storage/heat-exchange system, medium temperature storage/heat-exchange system and low temperature storage/
Heat-exchange system, the high temperature storage/heat-exchange system are highest step storage/heat-exchange system, and the low temperature storage/heat-exchange system is minimum
Grade step storage/heat-exchange system.
Further, the high temperature storage/heat-exchange system is connected with high-temperature power generation system, and the medium temperature storage/heat-exchange system connects
It is connected to medium temperature heat utilization system, the low temperature storage/heat-exchange system is connected with low-grade utility system, in the heat transfer medium channels
Equipped with for providing the power cycle equipment of circulation power for the first heat transfer medium.
Further, the high temperature storage/heat-exchange system is solid heat reservoir, and the high-temperature power generation system includes successively connecting
Logical steam generator, feed pump, steam turbine and condenser, the steam turbine are connected with generator, the solid heat reservoir
Circulation has the second heat transfer medium between the steam generator, and second heat transfer medium flows into the steam by pipeline and sends out
Raw device, the feed pump are pumped into fluid water into the steam generator, and water absorbs the heat of second heat transfer medium in institute
It states and is converted into steam in steam generator, the steam flows into acting in the steam turbine and drives the electrical power generators, acting
Water, which is condensed into, in the steam inflow condenser afterwards is back to the feed pump.
Further, the medium temperature storage/heat-exchange system is gas-vapour heat exchanger, and the medium temperature heat utilization system is steam use
Family system is equipped with the accumulator for storing steam between the gas-vapour heat exchanger and the steam custom system, described
Channel between gas-vapour heat exchanger and the steam custom system, which is equipped with, provides the first circulation of circulation power for recirculated water
Water pump.
Further, the low temperature storage/heat-exchange system is air-water heat exchanger, and the low-grade utility system is hot water use
Family system is equipped with the water tank for storing hot water, the gas-between the air-water heat exchanger and the hot water custom system
Channel between water- to-water heat exchanger and the hot water custom system is equipped with the second water pump for promoting fill cycle.
Further, first heat transfer medium is gas medium.
Further, second heat transfer medium is gas medium.
Further, the solid heat reservoir is built-in with heat-storage medium, and the heat-storage medium is high-temperature fusion salt, magnesium
One or more combinations of brick, composite phase-change material, ceramics, stone, metal and alloy, concrete.
Further, the operating pressure of the gas medium is 0 ~ 5MPa.
Beneficial effect caused by the present invention includes: system of the invention using dish-style heat collector, has higher optically focused
Multiple avoids solar radiation cosine losses, significantly improves system optics efficiency, while the Multi-stage heat of integrated belt heat accumulation utilizes system
System, while overcoming the limitation of solar energy intermittence and low stability, also improves system entirety efficiency of heating- utilization and warp
Ji property.The present invention as a heat transfer medium, it is there are inflammable and explosive, corrosivity strong to solve traditional heat transfer media using gas working medium
Problem；Storage/heat-exchange system is set in the present invention, and effective solution conventional power generation systems output is influenced by solar energy fluctuation
The problem of.
Detailed description of the invention
Fig. 1 is the basic principle structural schematic diagram of present system.
Fig. 2 is the structural schematic diagram of present system one embodiment.
In figure:
1, disc type solar energy collecting system, 2, high temperature storage/heat-exchange system, 3, high-temperature power generation system, 4, medium temperature storage/heat exchange system
System, 5, medium temperature heat utilization system, 6, low temperature storage/heat-exchange system, 7, low-grade utility system, 8, power cycle equipment, 9, dish-style
Heat collector, 10, solid heat reservoir, 11, steam generator, 12, circulating fan, 13, feed pump, 14, steam turbine, 15, power generation
Machine, 16, condenser, 17, gas-vapour heat exchanger, 18, water circulating pump 1,19, accumulator, 20, steam user, 21, gas-water changes
Hot device, 22, water circulating pump 2,23, water tank, 24, hot water user.
Specific embodiment
Further details of explanation is done to the present invention with reference to the accompanying drawings and detailed description, it should be appreciated that
The protection scope of the present invention is not limited by the specific implementation manner.
Refering to fig. 1, the disc type solar energy photo-thermal energy gradient utilization system, including disc type solar energy collecting system 1, height
Warm storage/heat-exchange system 2, high-temperature power generation system 3, medium temperature storage/heat-exchange system 4, medium temperature heat utilization system 5, low temperature storage/heat exchanger 6,
Low-grade utility system 7 and power cycle equipment 8 and heat transfer medium pipeline, the disc type solar energy collecting system 1 pass through pipe
Road is sequentially connected high temperature storage/heat-exchange system 2, medium temperature storage/heat-exchange system 4, low temperature storage/heat-exchange system 6, the high-temperature power generation system
3, medium temperature heat utilization system 5, low-grade utility system 7 respectively with high temperature storage/heat-exchange system 2, medium temperature storage/heat-exchange system 4, low temperature
Storage/heat-exchange system 6 connects, and the power cycle equipment 8 provides circulation power for the heat-transfer fluid in pipeline.
First heat transfer medium rises to high temperature by disc type solar energy collecting system, carries high temperature heat, successively passes through high temperature
Storage/heat-exchange system 2, medium temperature storage/heat-exchange system 4, low temperature storage/heat-exchange system 6 discharge heat step by step, and high temperature section heat passes through high temperature
Electricity generation system 3 carries out power generation and realizes electricity output, and medium temperature and low-temperature zone heat pass through medium temperature heat utilization system 5, Low Temperature Thermal benefit respectively
The heat utilization of temperature counterpart is carried out with system 7, the heat that so far heat-transfer fluid carries completes energy cascade utilization, eventually passes back to
Power cycle equipment 8 completes a circulation.
Disc type solar energy condenser system is formed by a dish-style condenser 9, or by the series connection of several dish-style condensers 9
Circuit compose in parallel again, single 9 collection area of dish-style condenser be 10m2~500m2。
Heat-transfer fluid be one of air, nitrogen, helium, carbon dioxide, operating pressure be 0 ~ 5MPa, temperature 300 ~
1000 DEG C, the verified operating pressure and temperature can effectively improve energy density.
It is stored with heat-storage medium in high temperature storage/heat-exchange system, which is high-temperature fusion salt, magnesia brick, composite phase-change
One or more combinations of material, ceramics, stone, metal and alloy, concrete.
High-temperature power generation system is Rankine cycle electricity generation system, supercritical carbon dioxide Bretton electricity generation system, Stirling hair
One of electric system, compressed air electricity generation system.
Medium temperature storage/heat-exchange system, heat-storage medium are water, fuse salt, magnesia brick, composite phase-change material, ceramics, stone, gold
One or more combinations of category and alloy, concrete.
Medium temperature heat utilization system is one of industrial heat, plant feedwater preheating, refrigeration heat, agricultural drying or combination.
Low temperature storage/heat-exchange system, heat-storage medium are one of water, low-temperature phase-change material, low temperature composite phase-change material
Or combination.
Low-grade utility system is building heating, domestic water, Water warfare, commercial laundry is one of or combines.
Further, as shown in Fig. 2, being one embodiment of present system, in conjunction with Fig. 1,2 detailed description embodiments
Specific embodiment.High temperature storage/heat-exchange system 2, medium temperature storage/heat-exchange system 4, low temperature storage/heat-exchange system 6 are respectively solid heat accumulation
System 10, gas-vapour heat exchanger 17, air-water heat exchanger 21.
First heat transfer medium selects air, and high temperature is risen in disc type solar energy condenser system 1, successively passes through solid heat accumulation
System 10, gas-vapour heat exchanger 17, air-water heat exchanger 21 discharge heat step by step, and heat-transfer fluid eventually passes back to power cycle equipment 8
Complete an energy cascade utilization circulation.
High temperature section includes solid heat reservoir 10 and high-temperature power generation system 3, and high-temperature power generation system 3 includes steam generator
11, feed pump 13, steam turbine 14, generator 15, condenser 16 and more root canal roads, in solid heat reservoir 10 and steam generator
Circulating fan 12 is set between 11, for providing circulation power for the second heat transfer medium.In solar energy abundance, solid heat accumulation system
System 10 absorbs the heat of the first heat transfer medium on one side, rejects heat to the second heat transfer that circulating fan 12 is conveyed on one side and is situated between
Matter, the second heat transfer medium is air, and in cloudy, rainy days or night, the air that circulating fan 12 is conveyed is stored up from solid
The heat of storage is absorbed in hot systems 10.The air for absorbing heat adds the water supply that feed pump 13 conveys by steam generator 11
Heat is at steam, and steam enters steam turbine 14 and drives generator 15, and the steam by acting enters back into condenser 16 and is condensed into liquid
Water returns to feed pump 13, completes a power generation cycle.When the heat-storage medium in high temperature storage/heat-exchange system 2 is fuse salt or water etc.
When liquid medium, the second heat transfer medium is heat-storage medium.
Middle-temperature section process are as follows: in solar energy abundance, by solid heat reservoir 10 cooling after the first heat transfer medium into
Enter gas-vapour heat exchanger 17, first circulation water pump 18 conveys water and enters the steam that gas-vapour heat exchanger 17 generates certain operating condition, steam
It is stored in accumulator 19, meets the round-the-clock steam demand of steam user 20.
Low-temperature zone process are as follows: in solar energy abundance, the first heat transfer after gas-vapour heat exchanger 17 further cooling is situated between
Matter enters air-water heat exchanger 21, and second circulation water pump 22 conveys water and enters the hot water that air-water heat exchanger 21 generates certain operating condition,
Hot water is stored in water tank 23, meets the round-the-clock hot water demand of hot water user 24.
The above is only a preferred embodiment of the present invention, and the present invention is not limited in the content of embodiment.For in this field
Technical staff for, can have various change and change within the scope of technical solution of the present invention, made any variation and
Change, within that scope of the present invention.
Claims (10)
1. a kind of disc type solar energy photo-thermal energy gradient utilization system, including solar thermal collection system and solar energy utilization system,
It is characterized by: storage/heat-exchange system is equipped between the solar thermal collection system and the solar energy utilization system, it is described
Storage/heat-exchange system includes at least two step storages/heat-exchange system, and each storage/heat-exchange system connects corresponding Solar use system
System, between solar thermal collection system and highest storage/heat-exchange system, solar thermal collection system and lowermost level storage/heat-exchange system it
Between, connected by heat transfer medium channels between storage/heat-exchange system of adjacent step, circulation has the in the heat transfer medium channels
One heat transfer medium, first heat transfer medium are led to after absorbing heat in the solar thermal collection system by the heat transfer medium
Road is circulated to the highest storage/heat-exchange system release heat, then by heat transfer medium channels be successively circulated to next stage storage/
Heat-exchange system release heat carries out being back to the solar thermal collection system after discharging heat step by step.
2. disc type solar energy photo-thermal energy gradient utilization system according to claim 1, it is characterised in that: described to store up/change
Hot systems include high temperature storage/heat-exchange system, medium temperature storage/heat-exchange system and low temperature storage/heat-exchange system, the high temperature storage/heat exchange system
System is highest step storage/heat-exchange system, and the low temperature storage/heat-exchange system is lowermost level step storage/heat-exchange system.
3. disc type solar energy photo-thermal energy gradient utilization system according to claim 2, it is characterised in that: the high temperature
Storage/heat-exchange system is connected with high-temperature power generation system, and the medium temperature storage/heat-exchange system is connected with medium temperature heat utilization system, described low
Warm storage/heat-exchange system is connected with low-grade utility system, and the heat transfer medium channels are equipped with for mentioning for the first heat transfer medium
For the power cycle equipment of circulation power.
4. disc type solar energy photo-thermal energy gradient utilization system according to claim 3, it is characterised in that: the high temperature
Storage/heat-exchange system is solid heat reservoir, and the high-temperature power generation system includes the steam generator, feed pump, vapour being sequentially communicated
Turbine and condenser, the steam turbine are connected with generator, circulate between the solid heat reservoir and the steam generator
There is the second heat transfer medium, second heat transfer medium flows into the steam generator by pipeline, and the feed pump is to the steaming
Fluid water is pumped into vapour generator, the heat that water absorbs second heat transfer medium is converted into steaming in the steam generator
Vapour, the steam flow into acting in the steam turbine and drive the electrical power generators, and the steam after acting flows into the condenser
In be condensed into water and be back to the feed pump.
5. disc type solar energy photo-thermal energy gradient utilization system according to claim 3, it is characterised in that: the medium temperature
Storage/heat-exchange system is gas-vapour heat exchanger, and the medium temperature heat utilization system is steam custom system, in the gas-vapour heat exchanger
The accumulator for storing steam, the gas-vapour heat exchanger and the steam user are equipped between the steam custom system
Channel between system, which is equipped with, provides the first circulation water pump of circulation power for recirculated water.
6. disc type solar energy photo-thermal energy gradient utilization system according to claim 3, it is characterised in that: the low temperature
Storage/heat-exchange system is air-water heat exchanger, and the low-grade utility system is hot water custom system, the air-water heat exchanger and institute
State the water tank being equipped between hot water custom system for storing hot water, the air-water heat exchanger and the hot water custom system
Between channel be equipped with the second water pump for promoting fill cycle.
7. disc type solar energy photo-thermal energy gradient utilization system according to claim 1, it is characterised in that: described first passes
Thermal medium is gas medium.
8. disc type solar energy photo-thermal energy gradient utilization system according to claim 4, it is characterised in that: described second passes
Thermal medium is gas medium.
9. disc type solar energy photo-thermal energy gradient utilization system according to claim 2, it is characterised in that: the high temperature
Storage/heat-exchange system is built-in with heat-storage medium, and the heat-storage medium is high-temperature fusion salt, magnesia brick, composite phase-change material, ceramics, stone
One or more combinations of son, metal and alloy, concrete.
10. disc type solar energy photo-thermal energy gradient utilization system according to claim 7, it is characterised in that: the gas
The operating pressure of medium is 0 ~ 5MPa.
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| CN201821290170.8U CN209116569U (en) | 2018-08-10 | 2018-08-10 | A kind of disc type solar energy photo-thermal energy gradient utilization system |
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| CN201821290170.8U CN209116569U (en) | 2018-08-10 | 2018-08-10 | A kind of disc type solar energy photo-thermal energy gradient utilization system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099605A (en) * | 2018-08-10 | 2018-12-28 | 昆山清芸新能源科技有限公司 | A kind of disc type solar energy photo-thermal energy gradient utilization system |
| CN110484285A (en) * | 2019-08-23 | 2019-11-22 | 华中科技大学 | A kind of Photospot solar driving biomass cascade utilizes system |
| CN115523113A (en) * | 2022-11-28 | 2022-12-27 | 南通源动太阳能科技有限公司 | Solar power generation and energy storage system |
-
2018
- 2018-08-10 CN CN201821290170.8U patent/CN209116569U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099605A (en) * | 2018-08-10 | 2018-12-28 | 昆山清芸新能源科技有限公司 | A kind of disc type solar energy photo-thermal energy gradient utilization system |
| CN110484285A (en) * | 2019-08-23 | 2019-11-22 | 华中科技大学 | A kind of Photospot solar driving biomass cascade utilizes system |
| CN115523113A (en) * | 2022-11-28 | 2022-12-27 | 南通源动太阳能科技有限公司 | Solar power generation and energy storage system |
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Effective date of registration: 20200522 Address after: 271199 NO.67 Huiyuan street, Laiwu high tech Zone, Jinan City, Shandong Province Patentee after: Main Energy Co.,Ltd. Address before: 300467-6F-90, Zone B2, Animation Building, 126 Animation Road, Eco-city, Hangu District, Tianjin Patentee before: TIANJIN TSINGYUN ZHULI ENERGY TECHNOLOGY Co.,Ltd. |
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