CN2622629Y - Full-specturm radiation heat storage macroscopic microstructure of heat collector - Google Patents
Full-specturm radiation heat storage macroscopic microstructure of heat collector Download PDFInfo
- Publication number
- CN2622629Y CN2622629Y CNU032046758U CN03204675U CN2622629Y CN 2622629 Y CN2622629 Y CN 2622629Y CN U032046758 U CNU032046758 U CN U032046758U CN 03204675 U CN03204675 U CN 03204675U CN 2622629 Y CN2622629 Y CN 2622629Y
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- blind hole
- radiation
- specturm
- heat storage
- heat collector
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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
Abstract
The utility model is a surface macroscopic microstructure, which can realize full spectrum heat storage of a heat collector by simulating blackbody cavity. With the model, visible light positive radiation is improved and the heat storage of dark light (thermal radiation) is especially realized. The simulated blackbody cavity is that the open end of a blind hole is equipped with a cover plate with a small hole to solve the technological problem of cavity forming. The absorption rate is improved by the micro rough blackening of the innerwall of the blind hole. The high absorption rate is guaranteed by the rough blackening on the outer surface of the cover plate. The reflection is strengthened by polished plated bright nickel on the inner surface. With suitable geometric and diaphragm factors, high radiation rate of the blackbody cavity is obtained. The model especially has a function that the difference value between the absorption rate and the radiation rate of the monochromatic radiation is increased.
Description
(1) technical field
The utility model relates to a kind ofly to be realized not only visible light positive net radiation being increased the surperficial macroscopic microstructure of heat collector full-specturm radiation heat storage by the simulation blackbody cavity, especially can growing out of nothing to the heat storage of black light (heat radiation).
(2) background technology
At present, solar water heater solves by heat collector surface treatment-high pass selectivity membrane (best cutoff wavelength is at 2.5～3 μ m): visible light, near-infrared for the short wavelength fully absorb, after the photo-thermal conversion, mid and far infrared to the long wavelength that produces is then hanged down radiation, can also can only accomplish the heat storage to the short-wave band radiant energy.
If desire to obtain the heat storage of natural environment radiant energy (infrared and far infrared radiation in comprising) in night, must in light-path, insert the membrane structure of multilayer " bandpass filter ".
(3) summary of the invention
Assurance to daytime sunshine to night this full-specturm radiation of low ambient temperature infra-red radiation all available heat to stockpile be the precondition of round-the-clock thermal-arrest.
According to radiology, though actual object radiance ε is not equal to absorptivity α, be more or less the same usually, its general character is that absorptivity is big more, radiance is also big more.Therefore, say that only depending on this note of the ancient Chinese of object characteristic to obtain heat storage can not be fine for monochromatic radiation.Yet selective membrane structure Design, preparation are extremely complicated, and cost is also extremely expensive.
During blackbody cavity, we notice in research: outside radiant energy, enter cavity by accent, and because the repeatedly reflection and the absorption of inside, chamber, the energy that cavity is absorbed, specific area equal the plane that accent, absorptivity equal cavity wall and absorb manyly.To emission also is so, claims that this phenomenon is a cavity effect.Therefore, foraminate cavity reaches after the thermal balance (adiabatic condition), is exactly the blackbody radiation source of a reality.
In this special concern be: be issued to thermal balance in adiabatic condition.And not only actual heat collector is not " isolated system ", and between " open system "-system and surrounding, existing energy exchange has mass exchange again exactly.So collateral radiation can be in the repeatedly reflection and the absorption of inside, chamber, radially conduction transports heat to the chamber wall to working medium, has done merit.This shows the measure of the surperficial macrostructure of independent dependence simulation blackbody cavity, has played for monochromatic radiation and has drawn back the special role of its absorptivity greater than the difference of radiance, also can reach the purpose of full-specturm radiation heat storage.
According to above-mentioned principle, design a kind of macroscopic microstructure of heat collector full-specturm radiation heat storage, it is characterized in that: constitute by the conjuncted unit that several blind holes are arranged and its peripheral orifice plate unit, and blind hole and orifice plate pass through surface treatment respectively.
The macroscopic microstructure of described heat collector full-specturm radiation heat storage is characterized in that: blind hole conjuncted unit splicing covers whole heat collector absorbing surface.
The macroscopic microstructure of described heat collector full-specturm radiation heat storage is characterized in that: all evenly alligatoring of infinitesimal blind hole surface of the conjuncted unit of blind hole, passivation blackout, and to improve its absorptivity.
The macroscopic microstructure of described heat collector full-specturm radiation heat storage is characterized in that: orifice plate unit has the hole identical with blind hole quantity, the center of the conjuncted unit of blind hole.
The macroscopic microstructure of described heat collector full-specturm radiation heat storage is characterized in that: the appearance profile of orifice plate unit and curvature are consistent with the conjuncted unit of blind hole, and when adorning to guarantee to cover, it is tight to cooperatively interact.
The macroscopic microstructure of described heat collector full-specturm radiation heat storage is characterized in that: the inner surface of orifice plate unit-towards the mirror polish bright nickel plating of blind hole one side, to increase the reflectivity to intracavitary irradiation, reduce its temperature; Outer surface passivation blackout is to increase the absorption to external projection radiation.
The macroscopic microstructure of described heat collector full-specturm radiation heat storage is characterized in that: orifice plate unit is covered in the blind hole opening end, the housing that orifice plate unit is welded to each other or bonding one-tenth is complete.
(4) description of drawings
The conjuncted cell schematics of " Fig. 1 " blind hole
Wherein: " Fig. 1 " a-front view; " Fig. 1 " b-A-A cutaway view; " Fig. 1 " c-B is to view.
" Fig. 2 " prismatic blackbody cavity schematic diagram
Icon:
The conjuncted unit 1 of blind hole; Orifice plate 2; Aperture 21; Blackbody cavity infinitesimal 3;
(5) specific embodiment
Consider from processing technology, do single blackbody cavity, no matter how complicated its planform is, for example cylindricality, taper, polyhedron, sphere ..., all not without possibility.But in conjunction with practicing, often cavity needs to occur with a small bundle of straw, etc. for silkworms to spin cocoons on and group's form, and one-shot forming hardly may.For this reason, once imagined and processed the conjuncted unit 1 of the prismatic blind hole of continuing in all directions (for example " Fig. 1 ") earlier, then to its cold-heading reducing.The result is difficult to guarantee reducing size and uniformity thereof.Facts have proved that the processing of cylindricality blind hole is as easy as rolling off a log, though effect slightly is inferior to sphere, it is enough also.For it, simple, effect is better with key drop for the reducing operation.
Blackbody cavity infinitesimal 3 physical dimensions it should be noted that the girth of cross section and the degree of depth of blind hole, to determine the total surface area of blackbody cavity, guarantee the light hurdle factor.Its degree of depth satisfies total surface area and requires down, needn't be too dark, and as the heat absorption fin, its radial symmetry gradient makes it undue length and there is no actual effect.The surface treatment of blackbody cavity is even more important relatively, the basic absorption rate on surface of its decision cavity, therefore, before the passivation blackout, should first sandblast or plucking coarse.
The critical size of orifice plate 2 is apertures of aperture 21, and its geometrical factor has influence on the light hurdle factor, considers from light hurdle factor angle, and the aperture is littler of well, and still from collector area, just the porosity of heat collector surface is greatly good.Weighing the advantages and disadvantages with porosity is to be advisable in 20～40% pairing apertures.
Claims (7)
1. the macroscopic microstructure of a heat collector full-specturm radiation heat storage is characterized in that: be made of the conjuncted unit that several blind holes are arranged and its peripheral orifice plate unit, and blind hole and orifice plate pass through surface treatment respectively.
2. the macroscopic microstructure of heat collector full-specturm radiation heat storage according to claim 1 is characterized in that: blind hole conjuncted unit splicing covers whole heat collector absorbing surface.
3. the macroscopic microstructure of heat collector full-specturm radiation heat storage according to claim 1 is characterized in that: all evenly alligatoring of infinitesimal blind hole surface of the conjuncted unit of blind hole, passivation blackout.
4. the macroscopic microstructure of heat collector full-specturm radiation heat storage according to claim 1 is characterized in that: orifice plate unit has the hole identical with blind hole quantity, the center of the conjuncted unit of blind hole.
5. the macroscopic microstructure of heat collector full-specturm radiation heat storage according to claim 1 is characterized in that: the appearance profile of orifice plate unit and curvature are consistent with the conjuncted unit of blind hole.
6. the macroscopic microstructure of heat collector full-specturm radiation heat storage according to claim 1 is characterized in that: the inner surface of orifice plate unit-towards the mirror polish bright nickel plating of blind hole one side; Outer surface passivation blackout.
7. the macroscopic microstructure of heat collector full-specturm radiation heat storage according to claim 1 is characterized in that: orifice plate unit is covered in the blind hole opening end, the housing that orifice plate unit is welded to each other or bonding one-tenth is complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032046758U CN2622629Y (en) | 2003-02-27 | 2003-02-27 | Full-specturm radiation heat storage macroscopic microstructure of heat collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU032046758U CN2622629Y (en) | 2003-02-27 | 2003-02-27 | Full-specturm radiation heat storage macroscopic microstructure of heat collector |
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| CN2622629Y true CN2622629Y (en) | 2004-06-30 |
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| CNU032046758U Expired - Fee Related CN2622629Y (en) | 2003-02-27 | 2003-02-27 | Full-specturm radiation heat storage macroscopic microstructure of heat collector |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902165A (en) * | 2009-05-28 | 2010-12-01 | 北京智慧剑科技发展有限责任公司 | Flat-panel black body solar photovoltaic converter |
| CN101900422A (en) * | 2009-05-29 | 2010-12-01 | 北京智慧剑科技发展有限责任公司 | Flat-panel black body solar photothermal converter |
| CN101900433A (en) * | 2009-05-29 | 2010-12-01 | 北京智慧剑科技发展有限责任公司 | Tower-type black body solar photothermal converter |
| CN101900438A (en) * | 2009-05-29 | 2010-12-01 | 北京智慧剑科技发展有限责任公司 | Black body solar photothermal/voltaic converter |
| CN101900432A (en) * | 2009-05-29 | 2010-12-01 | 北京智慧剑科技发展有限责任公司 | Trough-type black body solar photothermal converter |
| CN110031107A (en) * | 2018-01-11 | 2019-07-19 | 清华大学 | The preparation method of blackbody radiation source and blackbody radiation source |
| CN110173994A (en) * | 2019-05-31 | 2019-08-27 | 东北大学 | A kind of porous radiation Blackbody element of cavity |
| US11047740B2 (en) | 2018-01-11 | 2021-06-29 | Tsinghua University | Plane source blackbody |
| US11079284B2 (en) | 2018-01-11 | 2021-08-03 | Tsinghua University | Plane source blackbody |
| US11125626B2 (en) | 2018-01-11 | 2021-09-21 | Tsinghua University | Cavity blackbody radiation source and method of making the same |
| US11204283B2 (en) | 2018-01-11 | 2021-12-21 | Tsinghua University | Cavity blackbody radiation source and method of making the same |
| US11204284B2 (en) | 2018-01-11 | 2021-12-21 | Tsinghua University | Blackbody radiation source |
| US11226238B2 (en) | 2018-01-11 | 2022-01-18 | Tsinghua University | Blackbody radiation source |
| US11454547B2 (en) | 2018-01-11 | 2022-09-27 | Tsinghua University | Cavity blackbody radiation source |
| US11460345B2 (en) | 2018-01-11 | 2022-10-04 | Tsinghua University | Cavity blackbody radiation source and method of making the same |
-
2003
- 2003-02-27 CN CNU032046758U patent/CN2622629Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902165A (en) * | 2009-05-28 | 2010-12-01 | 北京智慧剑科技发展有限责任公司 | Flat-panel black body solar photovoltaic converter |
| CN101900422A (en) * | 2009-05-29 | 2010-12-01 | 北京智慧剑科技发展有限责任公司 | Flat-panel black body solar photothermal converter |
| CN101900433A (en) * | 2009-05-29 | 2010-12-01 | 北京智慧剑科技发展有限责任公司 | Tower-type black body solar photothermal converter |
| CN101900438A (en) * | 2009-05-29 | 2010-12-01 | 北京智慧剑科技发展有限责任公司 | Black body solar photothermal/voltaic converter |
| CN101900432A (en) * | 2009-05-29 | 2010-12-01 | 北京智慧剑科技发展有限责任公司 | Trough-type black body solar photothermal converter |
| CN101900432B (en) * | 2009-05-29 | 2017-05-17 | 北京智慧剑科技发展有限责任公司 | Trough-type black body solar photothermal converter |
| US11047740B2 (en) | 2018-01-11 | 2021-06-29 | Tsinghua University | Plane source blackbody |
| CN110031107A (en) * | 2018-01-11 | 2019-07-19 | 清华大学 | The preparation method of blackbody radiation source and blackbody radiation source |
| US11079284B2 (en) | 2018-01-11 | 2021-08-03 | Tsinghua University | Plane source blackbody |
| US11125626B2 (en) | 2018-01-11 | 2021-09-21 | Tsinghua University | Cavity blackbody radiation source and method of making the same |
| US11204283B2 (en) | 2018-01-11 | 2021-12-21 | Tsinghua University | Cavity blackbody radiation source and method of making the same |
| US11204284B2 (en) | 2018-01-11 | 2021-12-21 | Tsinghua University | Blackbody radiation source |
| US11226238B2 (en) | 2018-01-11 | 2022-01-18 | Tsinghua University | Blackbody radiation source |
| CN110031107B (en) * | 2018-01-11 | 2022-08-16 | 清华大学 | Blackbody radiation source and preparation method thereof |
| US11454547B2 (en) | 2018-01-11 | 2022-09-27 | Tsinghua University | Cavity blackbody radiation source |
| US11460345B2 (en) | 2018-01-11 | 2022-10-04 | Tsinghua University | Cavity blackbody radiation source and method of making the same |
| CN110173994A (en) * | 2019-05-31 | 2019-08-27 | 东北大学 | A kind of porous radiation Blackbody element of cavity |
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| CF01 | Termination of patent right due to non-payment of annual fee |