CN100552320C - Special-shaped modular type hollow space solar energy high-temperature receiver - Google Patents
Special-shaped modular type hollow space solar energy high-temperature receiver Download PDFInfo
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- CN100552320C CN100552320C CNB2008100191499A CN200810019149A CN100552320C CN 100552320 C CN100552320 C CN 100552320C CN B2008100191499 A CNB2008100191499 A CN B2008100191499A CN 200810019149 A CN200810019149 A CN 200810019149A CN 100552320 C CN100552320 C CN 100552320C
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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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Abstract
The invention discloses a kind of special-shaped modular type hollow space solar energy high-temperature receiver, belong to technical field of solar utilization technique.This product comprises the cup-shaped heat-absorbing chamber, advances optical transparency windowpane, heat-insulation layer, shell, and working fluid import and outlet, heat-absorbing chamber is put together by one group of interlayer wallboard that the center is converged at the bottom of its rim of a cup extends to glass, the working fluid import is around rim of a cup, and be communicated with nearby each interlayer wallboard respectively, center at the bottom of working fluid outlet is positioned at glass, be communicated with each the interlayer wallboard that converges therewith respectively, thereby form by the working fluid import respectively in the interlayer of each wallboard, be pooled to the working fluid passage of working fluid outlet again.This solar receiver has not only increased photo-thermal conversion efficiency, and because adopted modularized design, has reduced cost, helps promoting the development of solar thermal utilization industry.
Description
Technical field
The present invention relates to a kind of solar receiver, the special-shaped modular type hollow space solar energy high-temperature receiver that particularly a kind of suitable solar energy thermal-power-generating device uses belongs to the solar energy utilization technique field.
Background technology
Solar energy high-temperature receiver is the key core parts of solar heat power generation system, and various countries have carried out a lot of researchs around this technology.Existing high temperature solar receiver can be divided into two kinds of forms: the outside is subjected to light type and cavity type.By contrast, the former heat loss is bigger, and temperature is lower, generally below 600 degree; And cavity type receiver temperature is higher, is suitable for the high-temperature solar generating of high concentration ratio.For example, the disc type solar energy heat generating system adopts dish formula parabolic reflector concentrator and Stirling engine usually, and heating-up temperature can reach about 750 ℃.
The development trend of cavity receiver is: the working medium temperature parameter is more and more higher, is more suitable for the gas turbine power generation circulation in modern high-temperature parameter like this.The cavity type receiver photo-thermal conversion ratio of Cai Yonging reaches more than 90% in the world.
Yet the manufacturing process more complicated of cavity solar energy high-temperature receiver involves great expense at present, is not easy to through engineering approaches and applies, and rests on the experimental stage always, becomes the bottleneck of solar energy thermal-power-generating technical development.
Summary of the invention
The objective of the invention is: at the problem that above prior art exists, propose a kind of cavity solar energy high-temperature receiver of modular structure, thereby under the prerequisite that guarantees the desired light thermal conversion rate, reduce manufacturing cost, be convenient to large-scale production.
To achieve these goals, technical scheme of the present invention is: a kind of special-shaped modular type hollow space solar energy high-temperature receiver, the indent cup-shaped heat-absorbing chamber that comprises an end opening, be installed in rim of a cup outer advance the optical transparency windowpane, cover the heat-insulation layer of heat-absorbing chamber outer wall, coat the shell of heat-insulation layer, and working fluid import and working fluid outlet, described heat-absorbing chamber is put together by one group of interlayer wallboard that the center is converged at the bottom of its rim of a cup extends to glass, described working fluid import is made of an import endless tube around rim of a cup, and be communicated with nearby each interlayer wallboard respectively, center at the bottom of the outlet of described working fluid is positioned at glass, be communicated with each the interlayer wallboard that converges therewith respectively, thereby form by the working fluid import respectively in the interlayer of each wallboard, be pooled to the working fluid passage of working fluid outlet again.
The present invention further improves, and is vertex of a cone shape at the bottom of the described heat-absorbing chamber cup, and described each interlayer wallboard shape is identical.
This special-shaped modular type hollow space solar energy high-temperature receiver obviously has good heat absorption capacity and desirable photo-thermal conversion ratio, and the indent cup-shaped heat-absorbing chamber structure and the manufacturing process that are spliced by metallic plate interlayer wallboard are simple, because employing modular, therefore significantly reduce cost, thereby can make the cavity solar energy high-temperature receiver walk out laboratory stage, obtain industrialization promotion and use, promote the development of solar energy thermal-power-generating technology.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the embodiment of the invention one.
Fig. 2 is the cross-sectional view of the embodiment of the invention one.
Fig. 3 is the three-dimensional structure diagram of the embodiment of the invention one.
Fig. 4 is the endothermic box body structure schematic diagram of the embodiment of the invention two.
Fig. 5 is the generalized section of the embodiment of the invention two.
Fig. 6 is the top cross-sectional view of the embodiment of the invention two.
Fig. 7 is the endothermic box body structure schematic diagram of the embodiment of the invention three.
Fig. 8 is the structural profile schematic diagram of the embodiment of the invention three.
The specific embodiment
Embodiment one
The special-shaped modular type hollow space solar energy high-temperature receiver of present embodiment such as Fig. 1, Fig. 2, shown in Figure 3, the cup-shaped heat-absorbing chamber 1 that comprises an end opening concave shaped, be installed on the heat-absorbing chamber rim of a cup outer advance optical transparency windowpane 2, cover the heat-insulation layer 3 of heat-absorbing chamber outer wall, coat the shell 4 of heat-insulation layer, and the working fluid import 5 and the working fluid outlet 6 that are communicated in heat-absorbing chamber.
Heat-absorbing chamber 1 is put together by the one group 12 interlayer wallboards that the center is converged at the bottom of its rim of a cup extends to glass, and a cup end is vertex of a cone shape, and each interlayer wallboard shape is identical, is spliced its inner working fluid passage 13 that forms respectively by curved surface metal plate 11.The outside of cup-shaped heat-absorbing chamber 1 is covered by heat-insulation layer 3 and shell 4 thereof, this heat-insulation layer 3 has reduced the heat exchange amount of heat-absorbing chamber and outside air, further reduced the heat loss of solar receiver, the shell 4 of heat-insulation layer has then played effect fixing and the reinforcement receiver architecture.Cup-shaped heat-absorbing chamber 1 cavity inner wall surface also scribbles high temperature solar absorber coatings 8, thereby has increased the absorptance of solar receiver.
The working fluid import 5 of heat-absorbing chamber is made of an import endless tube 12 around rim of a cup, and this endless tube 12 is linked to each other with the fluid passage 13 of each interlayer wallboard by the through hole on each curved surface metal plate 11 respectively.During work, working fluid can flow into each interlayer wallboard uniformly by annular entrance pipe 12.Converge at the receiver vertex of a cone end fluid passage 13 of each interlayer wallboard, is communicated with herein working fluid outlet 6.During work, the working fluid that heats through cup-shaped heat-absorbing chamber 1 flows out receivers by working fluid outlet 6, enters the next stage system.For working fluid is flowed evenly, strengthen heat exchange property, can in the double-decker of heat-absorbing chamber 1 inwall, increase runner, as spirality rising runner or radial rising runner.
Heat-absorbing chamber 1 rim of a cup in the present embodiment is provided with that one group of speculum forms extends out bell mouth shape CPC composite curved surface concentrator 7, can increase the incident angle of light of solar receiver like this.By the setting of CPC concentrator 7 and high temperature solar absorber coatings 8, reduced the photo-thermal loss of solar energy high-temperature receiver, make its photo-thermal conversion ratio further improve.
The card of planar transparent windowpane 2 is contained in the sealing rubber pad 9, and the concentrator mouth outside rim of a cup seals continuous with it, constitutes seal chamber.Concentrator 7 peripheries are fixed with ring-type and vacuumize the chamber.During use, heat-absorbing chamber inside can be vacuumized or be full of inert gas (as nitrogen etc.),, reduce the heat loss of solar receiver with the absorber coatings 8 on the protection heat-absorbing chamber inwall by vacuum lead 10.Planar transparent glass 2 also can be replaced by spill glass or convex glass certainly.
The special-shaped modular type hollow space solar energy high-temperature receiver of present embodiment, is convenient to through engineering approaches and is applied so its production cost is lower because of having adopted modular.
Embodiment two
The special-shaped modular type hollow space solar energy high-temperature receiver of present embodiment such as Fig. 4, Fig. 5 and shown in Figure 6, identical substantially with the basic structure of embodiment one, its main distinction is that the interlayer wallboard of heat-absorbing chamber 1 is made up of the casing 21 that independently absorbs heat (being module).As shown in Figure 4, each heat absorption casing 21 is made of upper and lower sandwich plate, the inner circulation passage that forms working fluid of sandwich plate, and the curved surface metal module 11 that inner surface is a differential of the arc shape by a cross section constitutes.Last sandwich plate is isosceles triangle, and following sandwich plate is trapezoidal, one side butt joint of upper and lower sandwich plate, and the inboard obtuse angle that forms, the outside forms the guide ring 22 that is communicated with upper and lower sandwich plate.Upper and lower sandwich plate is respectively equipped with outlet 24 and inlet 23 away from an end of joint.
12 heat absorption casings 21 piece together heat-absorbing chamber 1, its horizontal section rounded (referring to Fig. 5, Fig. 6), the fluid intake 23 of each heat absorption casing 21 all is connected with the import endless tube 12 of annular, and fluid issuing 24 is communicated with the receiver operation fluid issuing by junction station 25.
The heat absorption box body splicing structure that the special-shaped modular type hollow space solar energy high-temperature receiver of present embodiment adopts makes that its processing is more easy, and the degree of modularity is higher, has therefore further reduced manufacturing cost.
Embodiment three
The special-shaped modular type hollow space solar energy high-temperature receiver of present embodiment such as Fig. 7, shown in Figure 8, identical substantially with the basic structure of embodiment two, its main distinction is to be provided with heating column 31 in heat absorption interior 11.
The outer end of heating column 31 is arranged in heat-absorbing chamber, and the inner is stretched in the interlayer wallboard of heat absorption casing, is dipped in the working fluid.During work, the heating column with good heat conductive performance can pass to the heat in the heat-absorbing chamber working fluid in the casing that absorbs heat fast fully, thereby further improves the heat transfer efficiency of solar energy high-temperature receiver.
The heating column structure that adopts on the present embodiment heat absorption casing has not only increased the endotherm area of heat absorption casing, has improved the heat absorption capacity of receiver, and has increased the heat exchange area of heat absorption casing and working fluid, has improved the photo-thermal transformation efficiency of receiver.
Claims (9)
1. special-shaped modular type hollow space solar energy high-temperature receiver, comprise an end opening indent cup-shaped heat-absorbing chamber, be installed in rim of a cup outer advance the optical transparency windowpane, cover the heat-absorbing chamber outer wall heat-insulation layer, coat the shell of heat-insulation layer and working fluid import and working fluid outlet; It is characterized in that: described heat-absorbing chamber is put together by one group of interlayer wallboard that the center is converged at the bottom of its rim of a cup extends to glass; Described working fluid import is made of an import endless tube around rim of a cup, and is communicated with nearby each interlayer wallboard respectively; Center at the bottom of the outlet of described working fluid is positioned at glass is communicated with each the interlayer wallboard that converges therewith respectively; Formation respectively in the interlayer of each wallboard, is pooled to the working fluid passage of working fluid outlet by the working fluid import again.
2. special-shaped modular type hollow space solar energy high-temperature receiver as claimed in claim 1 is characterized in that: be vertex of a cone shape at the bottom of the described heat-absorbing chamber cup, described each interlayer wallboard shape is identical.
3. special-shaped modular type hollow space solar energy high-temperature receiver as claimed in claim 1 or 2 is characterized in that: the cavity inner wall surface of described cup-shaped heat-absorbing chamber scribbles the high temperature solar absorber coatings.
4. special-shaped modular type hollow space solar energy high-temperature receiver as claimed in claim 3 is characterized in that: the rim of a cup of described heat-absorbing chamber is provided with by what one group of speculum was formed and extends out the bell mouth shape concentrator.
5. special-shaped modular type hollow space solar energy high-temperature receiver as claimed in claim 4 is characterized in that: described concentrator periphery is fixed with ring-type and vacuumizes the chamber.
6. special-shaped modular type hollow space solar energy high-temperature receiver as claimed in claim 5 is characterized in that: the described card that advances the optical transparency windowpane is contained in the sealing rubber pad, and the concentrator mouth outside rim of a cup seals continuous with it, constitutes seal chamber.
7. special-shaped modular type hollow space solar energy high-temperature receiver as claimed in claim 3, it is characterized in that: the interlayer wallboard of described heat-absorbing chamber is made up of the box body splicing that independently absorbs heat, described heat absorption casing is made of upper and lower sandwich plate, the inner circulation passage that forms working fluid of described sandwich plate; The described sandwich plate of going up is isosceles triangle, and described sandwich plate down is trapezoidal, one side butt joint of described upper and lower sandwich plate, and the inboard obtuse angle that forms, the outside forms the guide ring that is communicated with upper and lower sandwich plate.
8. special-shaped modular type hollow space solar energy high-temperature receiver as claimed in claim 7 is characterized in that: described upper and lower sandwich plate is respectively equipped with the outlet of heat absorption casing and the inlet of heat absorption casing away from an end of joint; The inlet of described heat absorption casing is connected with described import endless tube, and the outlet of described heat absorption casing is communicated with described working fluid outlet by junction station.
9. special-shaped modular type hollow space solar energy high-temperature receiver as claimed in claim 8, it is characterized in that: described heat absorption interior is provided with heating column, the outer end of described heating column is arranged in heat-absorbing chamber, and the sandwich plate that the heat absorption casing is stretched in the inner is dipped in the working fluid.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2008100191499A CN100552320C (en) | 2008-01-14 | 2008-01-14 | Special-shaped modular type hollow space solar energy high-temperature receiver |
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| CNB2008100191499A CN100552320C (en) | 2008-01-14 | 2008-01-14 | Special-shaped modular type hollow space solar energy high-temperature receiver |
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| CN101216220A CN101216220A (en) | 2008-07-09 |
| CN100552320C true CN100552320C (en) | 2009-10-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287930A (en) * | 2011-08-18 | 2011-12-21 | 王学明 | Composite solar heat collector |
| CN102345858A (en) * | 2011-09-28 | 2012-02-08 | 东方电气集团东方锅炉股份有限公司 | Solar cavity-type heat absorber capable of generating overheated steam |
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| DE102009006952A1 (en) * | 2009-01-30 | 2010-08-05 | Saint-Gobain Industriekeramik Rödental GmbH | Housing for a solar absorber module, solar absorber module and solar absorber arrangement, and method of manufacture |
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| CN102374671A (en) * | 2011-11-14 | 2012-03-14 | 天津大学 | Hemispherical cavity type solar heat collection device |
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| CN102287930A (en) * | 2011-08-18 | 2011-12-21 | 王学明 | Composite solar heat collector |
| CN102345858A (en) * | 2011-09-28 | 2012-02-08 | 东方电气集团东方锅炉股份有限公司 | Solar cavity-type heat absorber capable of generating overheated steam |
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| CN101216220A (en) | 2008-07-09 |
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