CN102102908A - Vacuum film coating-free flat-plate solar collector integrated with building - Google Patents
Vacuum film coating-free flat-plate solar collector integrated with building Download PDFInfo
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- CN102102908A CN102102908A CN2011100599334A CN201110059933A CN102102908A CN 102102908 A CN102102908 A CN 102102908A CN 2011100599334 A CN2011100599334 A CN 2011100599334A CN 201110059933 A CN201110059933 A CN 201110059933A CN 102102908 A CN102102908 A CN 102102908A
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- solar collector
- fluid
- vacuum
- plate solar
- film coating
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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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- Joining Of Glass To Other Materials (AREA)
- Building Environments (AREA)
Abstract
The invention provides a vacuum film coating-free flat-plate solar collector integrated with a building. The vacuum film coating-free flat-plate solar collector provided by the invention is characterized in that a sealed chamber is composed of two layers of main glass panels and circumferential regulas, and the main glass panels are double-layer vacuum glass plates; a plurality of baffle plates are vertically arranged between the two layers of main glass panels; the inner cavity of the sealed chamber is divided into a plurality of fluid channels by the baffle plates, the side edges of the sealed chamber are provided with an inlet and an outlet which are communicated with the fluid channels, the sealed chamber is filled with Cu/ glycol nano fluid black liquor, and the fluid channels in the sealed chamber are connected end to end so as to form a serial flow channel between the inlet and the outlet; and the Cu/ glycol nano fluid black liquor is prepared through carrying out magnetic stirring on Arabic gum serving as a dispersing agent, a glycol aqueous solution serving as a dispersion medium and nano copper powder and then carrying out ultrasonic dispersion on the mixture. The vacuum film coating-free flat-plate solar collector provided by the invention has the advantages that the heat efficiency is high, film coating is not needed, and large-are assembly can be carried out conveniently; and the vacuum film coating-free flat-plate solar collector provided by the invention can be independently used as a solar collector, also can be used as a component so as to be directly used on the building, thus the vacuum film coating-free flat-plate solar collector provided by the invention and the building can be integrated into a whole.
Description
Technical field
The present invention relates to a kind of heat collector, particularly a kind of and vacuum architecture-integral is exempted from the plated film flat-plate solar collector.
Background technology
In the solar energy utilization technique field, heat collector commonly used at present has:
(1) vacuum glass tube heat collector, owing to be subjected to the restriction of mounting condition and vacuum tube life-span itself, intensity etc., be difficult to realize integrated with building, simultaneously, owing to exist between the vacuum tube than the bassoon distance, the effective collector area of vacuum tube collector only is about 1/2 of a heat collector contour area, so the efficient of heat collector is lower.
(2) flat plate collector, though flat plate collector is realized and architecture-integral easily, the thermal efficiency is low, heat-insulating property is poor but it exists, defectives such as the easy oxidation of coating, copper pipe are perishable are the antifreeze problem that solves flat plate collector, the modes of using anti-icing fluid to adopt secondary heat exchange as cycle fluid that adopt in actual the use more, because the heat-transfer effect of anti-icing fluid is relatively poor, no matter be thermal-arrest or secondary heat exchange, all require a bigger temperature difference, this also increases the heat loss of heat collector undoubtedly.
(3) adopt plated film mode in hollow plate glass, the defective of this mode is a beading temperature height, destroys selective absorbing film, causes Heat-collecting effect to reduce greatly.
More than in all kinds of heat collectors, heat transmission between heat-absorbent surface and the working media all is the indirect heat transmittance process at interface more than, plated film or heat absorbing coating on the heat-absorbent surface are converted to heat energy with solar radiant energy, conduct the heat transferred working media by the heat of solid wall surface then, because there is big thermal resistance in the solid-liquid boundary layer, must exist the bigger temperature difference as heat conducting motive force between heat-absorbent surface and working media, this temperature difference makes the external heat radiation of heat-absorbent surface increase, thereby increased the heat loss of heat collector, bigger thermal resistance also is unfavorable for the heat conduction simultaneously, and the thermal efficiency of therefore above all kinds of heat collectors is not high.
Summary of the invention
The technical problem to be solved in the present invention is at the deficiencies in the prior art, has proposed a kind of thermal efficiency height, exempts from plated film, is convenient to the large tracts of land assembling, can be used as building element, has easily realized exempting from the plated film flat-plate solar collector with the vacuum of architecture-integral.
The technical problem to be solved in the present invention is achieved through the following technical solutions, a kind of and vacuum architecture-integral is exempted from the plated film flat-plate solar collector, be characterized in: edge strip is formed airtight cavity around being reached by two-layer main face glass, described main face glass is all the dual-layer vacuum glass plate, between two-layer main face glass, vertically be provided with some dividing plates, cavity in the airtight cavity is divided into some fluid passages by dividing plate, side at airtight cavity is provided with import and the outlet that is connected with above-mentioned fluid passage, is filled with the functional thermal fluid nano black liquor of direct absorption solar radiant energy in airtight cavity.
The technical problem to be solved in the present invention can also come further to realize by the following technical programs, the end to end formation in fluid passage in the airtight cavity by import to the serial runner exporting.
The technical problem to be solved in the present invention can also come to realize that further described functional thermal fluid nano black liquor is a Cu/ ethylene glycol nano-fluid black liquor by the following technical programs.
The technical problem to be solved in the present invention can also come further to realize by the following technical programs, the preparation method of described Cu/ ethylene glycol nano-fluid black liquor is: adopt glycol water as decentralized medium, the glycol water ratio of 1:1 by volume is formulated, with the weight of glycol water as benchmark part, the copper nanoparticle that adds 0.005 ~ 0.01wt%, 0.20 the gum arabic of ~ 0.40wt%, mixed in 20 ~ 30 minutes by magnetic agitation, temperature remains on 20 ~ 30 ℃, disperseed 50 ~ 70 minutes by ultrasonic wave again, mixed liquor becomes black suspension, is Cu/ ethylene glycol nano-fluid black liquor.
The present invention compared with prior art has following beneficial effect:
(1) it is that a kind of vacuum is exempted from plated film vacuum plate heat collection device, has realized exempting from plated film, and production technology is simplified.
(2) reach up and down and adopt hollow plate glass on every side, good heat insulating has reduced the heat loss of heat collector.
(3) be divided into several fluid passages with glass in the middle of the two-layer vacuum glass, the effective collector area of heat collector reached more than 95%, far above present vacuum tube collector.
(4) adopt functional thermal fluid directly to absorb the solar radiation energy, reduced heat transfer resistance, the maximum temperature of heat collector appears at the inside of functional thermal fluid, and experiment shows that its absorptivity to solar radiant energy can reach more than 95%, has also reduced the radiation loss of heat collector simultaneously.
(5) functional thermal fluid that adopts the interpolation nano particle has improved the fluid heat transferring performance, thereby can effectively improve the thermal efficiency of heat collector as working media.
(6) vacuum is exempted from plated film vacuum plate heat collection device and is adopted whole welding mode, intensity is big, can be used as monomer solar thermal collector, solar water heating system use, also can be used as building element and be directly used in glass curtain wall, balcony fence, sunshading board of building roof, building etc., realize easily and architecture-integral, existing heat preservation and soundproof function is convenient to be assembled into large-area solar thermal collection system again.
Description of drawings
Fig. 1 is a structure diagram of the present invention.
The specific embodiment
A kind of and vacuum architecture-integral is exempted from the plated film flat-plate solar collector, by two-layer main face glass 2 and around edge strip 4 form airtight cavity, described main face glass is all the dual-layer vacuum glass plate, between two-layer main face glass, vertically be provided with some dividing plates 5, cavity in the airtight cavity is divided into some fluid passages 6 by dividing plate 5, side at airtight cavity is provided with import 1 and the outlet 3 that is connected with above-mentioned fluid passage, is filled with the functional thermal fluid nano black liquor of direct absorption solar radiant energy in airtight cavity.The end to end formation in fluid passage in the airtight cavity by import to the serial runner exporting.Described functional thermal fluid nano black liquor is a Cu/ ethylene glycol nano-fluid black liquor.
Cu/ ethylene glycol nano-fluid black liquor adopt gum arabic as dispersant, adopt glycol water as decentralized medium, add copper nanoparticle and disperse to make by ultrasonic wave again after by magnetic agitation.Concrete preparation method is: glycol water is the ratio preparation of 1:1 by volume, with the weight of glycol water as benchmark part, add the copper nanoparticle of 0.005 ~ 0.01wt%, the gum arabic of 0.20 ~ 0.40wt%, mixed in 20 ~ 30 minutes by magnetic agitation, temperature remains on 20 ~ 30 ℃, disperseed 50 ~ 70 minutes by ultrasonic wave, mixed liquor becomes black suspension, is Cu/ ethylene glycol nano-fluid black liquor again.
Claims (4)
1. the vacuum with architecture-integral is exempted from the plated film flat-plate solar collector, it is characterized in that: edge strip is formed airtight cavity around being reached by two-layer main face glass, described main face glass is all the dual-layer vacuum glass plate, between two-layer main face glass, vertically be provided with some dividing plates, cavity in the airtight cavity is divided into some fluid passages by dividing plate, side at airtight cavity is provided with import and the outlet that is connected with above-mentioned fluid passage, is filled with the functional thermal fluid nano black liquor of direct absorption solar radiant energy in airtight cavity.
2. according to claim 1 and vacuum architecture-integral are exempted from the plated film flat-plate solar collector, it is characterized in that: the end to end formation in fluid passage in the airtight cavity by import to the serial runner exporting.
3. according to claim 1 and vacuum architecture-integral is exempted from the plated film flat-plate solar collector, and it is characterized in that: described functional thermal fluid nano black liquor is a Cu/ ethylene glycol nano-fluid black liquor.
4. according to claim 3 and vacuum architecture-integral is exempted from the plated film flat-plate solar collector, it is characterized in that, the preparation method of described Cu/ ethylene glycol nano-fluid black liquor is: adopt glycol water as decentralized medium, the glycol water ratio of 1:1 by volume is formulated, with the weight of glycol water as benchmark part, the copper nanoparticle that adds 0.005 ~ 0.01wt%, 0.20 the gum arabic of ~ 0.40wt%, mixed in 20 ~ 30 minutes by magnetic agitation, temperature remains on 20 ~ 30 ℃, disperseed 50 ~ 70 minutes by ultrasonic wave again, mixed liquor becomes black suspension, is Cu/ ethylene glycol nano-fluid black liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100599334A CN102102908B (en) | 2011-03-14 | 2011-03-14 | Vacuum film coating-free flat-plate solar collector integrated with building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100599334A CN102102908B (en) | 2011-03-14 | 2011-03-14 | Vacuum film coating-free flat-plate solar collector integrated with building |
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| Publication Number | Publication Date |
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| CN102102908A true CN102102908A (en) | 2011-06-22 |
| CN102102908B CN102102908B (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100599334A Expired - Fee Related CN102102908B (en) | 2011-03-14 | 2011-03-14 | Vacuum film coating-free flat-plate solar collector integrated with building |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519151A (en) * | 2011-12-17 | 2012-06-27 | 中国科学院电工研究所 | Plate type heat absorber for tower type solar thermal power generation |
| CN102679590A (en) * | 2012-04-27 | 2012-09-19 | 镇江新梦溪能源科技有限公司 | Snakelike runner flat-plate solar collector |
| CN103162437A (en) * | 2013-04-11 | 2013-06-19 | 南京信息工程大学 | Solar thermal collector |
| CN103471258A (en) * | 2012-09-09 | 2013-12-25 | 王安 | Solar vacuum heat collection panel |
| CN110671770A (en) * | 2019-10-30 | 2020-01-10 | 中国建筑西北设计研究院有限公司 | Low-energy-consumption rural house indoor thermal environment regulation and control system |
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| US4055163A (en) * | 1975-04-16 | 1977-10-25 | Costello Frederick A | Solar heating system |
| CN1920439A (en) * | 2006-06-01 | 2007-02-28 | 王亚雄 | Pulse solar energy superconductive plate |
| CN1932410A (en) * | 2006-09-27 | 2007-03-21 | 浙江大学 | Nano-fluid solar window type heat collector |
| CN200986327Y (en) * | 2006-11-07 | 2007-12-05 | 江苏省华扬太阳能有限公司 | Solar heat collector |
| CN101418989A (en) * | 2008-12-10 | 2009-04-29 | 广东工业大学 | Nanometer black liquor energy storage type solar heat collector |
-
2011
- 2011-03-14 CN CN2011100599334A patent/CN102102908B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4055163A (en) * | 1975-04-16 | 1977-10-25 | Costello Frederick A | Solar heating system |
| CN1920439A (en) * | 2006-06-01 | 2007-02-28 | 王亚雄 | Pulse solar energy superconductive plate |
| CN1932410A (en) * | 2006-09-27 | 2007-03-21 | 浙江大学 | Nano-fluid solar window type heat collector |
| CN200986327Y (en) * | 2006-11-07 | 2007-12-05 | 江苏省华扬太阳能有限公司 | Solar heat collector |
| CN101418989A (en) * | 2008-12-10 | 2009-04-29 | 广东工业大学 | Nanometer black liquor energy storage type solar heat collector |
Non-Patent Citations (1)
| Title |
|---|
| 《有色金属》 20100228 毛凌波等 纳米铜粉在太阳能集热器循环工质中的分散 第22-26页 1-4 第62卷, 第1期 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519151A (en) * | 2011-12-17 | 2012-06-27 | 中国科学院电工研究所 | Plate type heat absorber for tower type solar thermal power generation |
| CN102519151B (en) * | 2011-12-17 | 2014-04-09 | 中国科学院电工研究所 | Plate type heat absorber for tower type solar thermal power generation |
| CN102679590A (en) * | 2012-04-27 | 2012-09-19 | 镇江新梦溪能源科技有限公司 | Snakelike runner flat-plate solar collector |
| CN103471258A (en) * | 2012-09-09 | 2013-12-25 | 王安 | Solar vacuum heat collection panel |
| CN103162437A (en) * | 2013-04-11 | 2013-06-19 | 南京信息工程大学 | Solar thermal collector |
| CN110671770A (en) * | 2019-10-30 | 2020-01-10 | 中国建筑西北设计研究院有限公司 | Low-energy-consumption rural house indoor thermal environment regulation and control system |
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| Publication number | Publication date |
|---|---|
| CN102102908B (en) | 2012-12-12 |
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Granted publication date: 20121212 Termination date: 20130314 |