CN205619586U - Confocal solar energy light heat mirror field system of many secondary reflection tower - Google Patents
Confocal solar energy light heat mirror field system of many secondary reflection tower Download PDFInfo
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- CN205619586U CN205619586U CN201620268064.4U CN201620268064U CN205619586U CN 205619586 U CN205619586 U CN 205619586U CN 201620268064 U CN201620268064 U CN 201620268064U CN 205619586 U CN205619586 U CN 205619586U
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- secondary reflection
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- jing chang
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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
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Abstract
The utility model relates to a confocal solar energy light heat mirror field system of many secondary reflection tower comprises a plurality of mirror field composite module and a heat absorber, every mirror field composite module constitute by jing chang and secondary reflection tower, in the secondary reflection mirror of jingchang in through the secondary reflection tower assembled secondary reflection light subaerial heat absorber, wherein, jingchang was oval jingchang or rhombus jingchang by what a plurality of heliostats were formed, closely arranges between the composite module of mirror field and is in the same place. The utility model discloses can reasonable in design, only select the northern mirror field most effective region of cosine for use, furthest has improved optics efficiency, has saved heliostat quantity under the equal scale, power station unit cost reduces by a wide margin, adopts long and narrow ellipse or rhombus unilateral jing chang, it is more nimble to carry out the tactics that mirror field modularization made up, greatly reduced the waste in soil.
Description
Technical field
This utility model relates to a kind of many secondary reflections tower confocal solar energy heat mirror field system, belongs to photo-thermal power generation
Technical field.
Background technology
Tower type solar energy thermal power generation technology causes the broad interest of energy field the most in the world, using fused salt as
The advantages such as it is big that the tower solar-thermal generating system of heat transfer medium has power, and efficiency is high, and heat storage capacity is strong, stable.Typically
The heat extractor of tower fused salt solar-thermal generating system is installed on optically focused column overhead, and heat extractor is formed by endothermic tube is densely arranged, caliber
Relatively thin, tube wall is relatively thin, and in running, endothermic tube frozen block easily occurs and crosses thermal condition, affects the properly functioning of system, and
Needing high-power pump for liquid salts that working medium pump is delivered to optically focused tower top, system is higher from power consumption.
In order to avoid the various technical risks of typical tower fused salt opto-thermal system, change light path by secondary reflection tower, will
Heat extractor is placed in the secondary reflection photothermal technique on ground and arises at the historic moment.Opticai Concentrating System With Secondary Reflection includes field, settled date border, secondary counter
Penetrating tower and heat extractor, sunray converges to secondary reflection tower through heliostat field, and heliostat field is focused on too by secondary reflection tower
Sunlight line carries out secondary focusing, secondary reflection tower by sunray secondary focusing to heat extractor.The heliostat field of this system is adopted more
By 360 ° of all-round Jing Chang, secondary reflection mirror many employings hyperboloid of revolution, system optical axis is the rotary shaft of this curved surface, optical axis edge
Vertical direction.Ground heat extractor is opening up, the heat-transfer working medium that heat extractor is used with fused salt, supercritical carbon dioxide, gas,
Solid particle etc..
One power station using secondary reflection technology, generally uses multiple secondary reflection towers, has one immediately below each tower
Heat extractor, supply station allotment generating in the Large Copacity heat-accumulator tank that the hot working fluid of generation is pooled in conventional island by interconnecting piping.
But for middle high latitude area, the optical efficiency of Nan Jingchang is more much lower than northern mirror field, same energy output needs
More heliostat.Existing secondary reflection Jing Chang uses ring arrangement, the north and south span of Jing Chang and west and east span to differ not
Greatly, and single column single module is larger, can waste substantial amounts of soil when power station modular layout；Existing secondary reflection mirror light
Axle is all vertically, and arranges a heat extractor under every tower, and the working medium after heating needs to be converged by longer pipeline
Gathering the Large Copacity heat-accumulator tank in conventional island, thermal technology's operational mode is more complicated, and long-distance pipe heat radiation is bigger.
Utility model content
The purpose of this utility model is: can not meet existing needs for current technology, it is provided that a kind of many secondary counters
Penetrating tower confocal solar energy heat mirror field system, this system only selects the region that mirror field, north cosine efficiency is the highest, to greatest extent
Improve and under optical efficiency, same size, save heliostat quantity, power station unit cost is greatly reduced, and uses long and narrow ellipse
Circle or rhombus one side Jing Chang, the strategy carrying out mirror field modular combination is more flexible, greatly reduces the waste in soil.
This utility model be the technical scheme is that a kind of many secondary reflections tower confocal solar energy heat mirror field is
System, is made up of some mirror field composite modules and a heat extractor, and described each mirror field composite module is by Jing Chang and secondary counter
Penetrating tower to constitute, Jing Chang passes through the secondary reflection mirror in secondary reflection tower by secondary reflection light collection to subaerial heat extractor
In, wherein, ovalize Jing Chang that Jing Chang is made up of some heliostats or rhomb-scope field, closely arrange between the composite module of mirror field
Together.
In this utility model: described Jing Chang is that secondary reflection tower is left the Bei Jingchang of string efficiency highest zone.
In this utility model: the described hyperboloid that secondary reflection mirror is different focal or the reflection border of ellipsoid, respectively
The light of Jing Chang all focuses on the upper focus of respective secondary reflection mirror, and the public lower focus jointly converging to place near the ground is i.e. inhaled
In hot device.
The beneficial effects of the utility model:
1. a region that mirror field, selection north cosine efficiency is the highest, improves optical efficiency, under same size to greatest extent
Saving heliostat quantity, power station unit cost is greatly reduced；
2. using long and narrow ellipse or rhombus one side Jing Chang, the strategy carrying out mirror field modular combination is more flexible, greatly
Reduce greatly the waste in soil；
3. customized the secondary reflection mirror (hyperboloid or ellipsoid) of different focal for every piece of Jing Chang, the light of each Jing Chang is all
Focus on the upper focus of respective secondary reflection mirror, and jointly converge in the heat extractor at place near the ground (public lower focus), actual
Operation can reach the highest focusing ratio.
Accompanying drawing explanation
Fig. 1 is system schematic of the present utility model；
Fig. 2 is the system schematic of the oval shape mirror field in this utility model；
Fig. 3 is the system schematic of the rhomb-scope field in this utility model；
Fig. 4 is day in Spring Equinox cosine efficiency distribution figure in the Northern Hemisphere in this utility model.
Wherein: 1. Jing Chang；2. secondary reflection tower；3. secondary reflection light；4. heat extractor.
Detailed description of the invention
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
The present embodiment uses oval shape mirror field, as in figure 2 it is shown, a kind of many secondary reflections tower confocal solar energy heat mirror
Field system, forms including 7 mirror field composite modules and a heat extractor 4, is closely arranged together between the composite module of mirror field, in
The arrangement mode of four after first three, the most each mirror field composite module is by an oval shape mirror field 1 and secondary reflection tower 2 structure
Becoming, secondary reflection light 3 is converged to subaerial heat absorption by the secondary reflection mirror in secondary reflection tower 2 by oval shape mirror field 1
In device 4, and the height of front-seat secondary reflection tower 2 must not block heel row secondary reflection tower 2 and secondary reflection light 3 reflexes to heat absorption
In device 4.
Embodiment 2
The present embodiment uses rhomb-scope field, as it is shown on figure 3, a kind of many secondary reflections tower confocal solar energy heat mirror field
System, forms including 7 mirror field composite modules and a heat extractor 4, is closely arranged together, in front between the composite module of mirror field
The arrangement mode of four after three, the most each mirror field composite module is constituted by a rhomb-scope field 1 and a secondary reflection tower 2,
Secondary reflection light 3 is converged in subaerial heat extractor 4 by rhomb-scope field 1 by the secondary reflection mirror in secondary reflection tower 2,
And the height of front row secondary reflection tower 2 must not block heel row secondary reflection tower 2 and be reflexed in heat extractor 4 by secondary reflection light 3
?.Wherein, secondary reflection mirror is hyperboloid or the reflection border of ellipsoid of different focal, and the light of each Jing Chang all focuses on respectively
From the upper focus of secondary reflection mirror, and jointly converge in the public lower focus i.e. heat extractor at place near the ground.Mathematical hyperbolic
Face or ellipsoid have two focuses, and it is incident that converging light is directed at one of them focus, reflexes to another focus, the part of the body cavity above the diaphragm housing the heart and lungs here
Point is exactly an aerial virtual point of the secondary reflection mirror back side, and lower focus is exactly heat extractor opening part.Due to such secondary
Reflecting module can spatially combination in any, its focusing ratio at heat extractor is any superposition, it is possible to reach to appoint
Meaning high concentration ratio.
As shown in Figure 4, in figure, coordinate represents the planar dimension of Jing Chang in length and breadth, when moire scattergram illustrates high noon in the Spring Equinox
Cosine efficiency value, color is the most shallow, and efficiency is the highest.North half has been selected in oval shape mirror field or rhomb-scope field 1 in this utility model
The region that ball cosine efficiency is the highest, is all that and then the sun rotates due to heliostat, but not in the face of the sun, its reflecting surface normal with
Solar incident angle is inevitable at an angle, and each position is the most in the same time in change, is just generally taking the Spring Equinox when designing mirror field
The cosine distribution at noon approaches the average of the whole year.The secondary reflection tower 2 of every piece of mirror field 1 correspondence is all located at " the white circle position of Fig. 4
Put ", compared to the circular Jing Chang of typical case's secondary reflection, whole efficiency is substantially improved, thus significantly reduces same size system
In heliostat quantity.
In practical operation, can as required, the mirror field composite module in Fig. 2 and Fig. 3 can also constantly extend, Jing Chang
Composite module specifically can be arranged according to the shape of landform, thus realizes high installed capacity of power station, and puts down heat extractor Jiao
Reach the highest focusing ratio at face, thus drive the heat-exchange working medium of various temperature spot, and at equal temperature, heat extractor is imitated
Rate rises to ultimate attainment.
On the premise of not having a strong impact on cosine efficiency, the secondary reflection tower in the composite module of mirror field can not be at sustained height
On, the position in horizontal plane can also fine tune, the secondary tower of front and rear row has difference in height, such that it is able to effectively prevent front row
Heel row is blocked by secondary reflection tower.
Above detailed description of the invention of the present utility model is described, but this utility model is not limited to above retouching
State.For a person skilled in the art, any equal amendment to the technical program and replacement are all at this utility model
Scope among.Therefore, the impartial conversion made under without departing from spirit and scope of the present utility model and amendment, all should contain
In the range of this utility model.
Claims (3)
1. the confocal solar energy heat mirror field system of secondary reflection tower more than a kind, it is characterised in that: by some mirror fields combination die
Block and a heat extractor composition, described each mirror field composite module is constituted by Jing Chang and secondary reflection tower, and Jing Chang passes through two
Secondary reflection mirror in secondary reflection tower is by secondary reflection light collection to subaerial heat extractor, and wherein, Jing Chang is by some fixed
Solar eyepiece composition in oval long and narrow Jing Chang or rhomb-scope field, be closely arranged together between the composite module of mirror field.
A kind of many secondary reflections tower confocal solar energy heat mirror field system, it is characterised in that:
Described Jing Chang is that secondary reflection tower is left the Bei Jingchang of string efficiency highest zone.
A kind of many secondary reflections tower confocal solar energy heat mirror field system, it is characterised in that:
The described hyperboloid that secondary reflection mirror is different focal or the reflection border of ellipsoid, the light of each Jing Chang all focuses on respective two
The upper focus of secondary mirror, and jointly converge in the public lower focus i.e. heat extractor at place near the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620268064.4U CN205619586U (en) | 2016-04-05 | 2016-04-05 | Confocal solar energy light heat mirror field system of many secondary reflection tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620268064.4U CN205619586U (en) | 2016-04-05 | 2016-04-05 | Confocal solar energy light heat mirror field system of many secondary reflection tower |
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| CN205619586U true CN205619586U (en) | 2016-10-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674588A (en) * | 2016-04-05 | 2016-06-15 | 上海晶电新能源有限公司 | Multi-secondary reflection tower-confocal solar photothermal mirror field system |
-
2016
- 2016-04-05 CN CN201620268064.4U patent/CN205619586U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674588A (en) * | 2016-04-05 | 2016-06-15 | 上海晶电新能源有限公司 | Multi-secondary reflection tower-confocal solar photothermal mirror field system |
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