CN104456984A - Flat plate type solar heat collector for improving heat utilization efficiency - Google Patents
Flat plate type solar heat collector for improving heat utilization efficiency Download PDFInfo
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- CN104456984A CN104456984A CN201310417288.8A CN201310417288A CN104456984A CN 104456984 A CN104456984 A CN 104456984A CN 201310417288 A CN201310417288 A CN 201310417288A CN 104456984 A CN104456984 A CN 104456984A
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- China
- Prior art keywords
- heat collector
- canalis pterygoideus
- solar heat
- parts
- flat
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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 provides a flat plate type solar heat collector for improving heat utilization efficiency. The solar heat collector comprises a shell, wherein a set of wing tubes is mounted in the shell; the adjacent wing tubes are communicated through U-shaped tubes; the wing tubes are respectively connected with a liquid inlet tube and a liquid outlet tube; heat insulation fillers are arranged between the wing tubes and the shell; selective absorption paint layers are arranged at the upper parts of the wing tubes; tempered glass layers are arranged at the upper parts of the wing tubes; and vacuum cavities are formed between the tempered glass layers and the wing tubes. The solar heat collector can effectively improve the absorption rate of solar energy, can reduce the heat loss, and develops a wider path for the application of the flat plate type solar heat collector.
Description
technical field:
The present invention relates to a kind of flat-plate solar heat collector improving efficiency of utilization, belong to technical field of solar utilization technique.
background technology:
In solar energy heating utilization, key is that the radiant energy of the sun is converted to heat energy.Because solar energy compares dispersion, it must be managed to put together, so heat collector is the various key components utilizing solar energy equipment.Flat-plate solar collector is the basic element of character of solar low-temperature heat utilization, is also the leading products of world solar markets always.Flat plate collector has been widely used in the numerous areas such as domestic water heating, natatorium heating system, water for industrial use heating, constructure heating and air-conditioning.With water heater and the flat plate solar water heater of flat-plate solar collector parts composition.
Existing flat-plate solar collector is primarily of a few part composition such as flat-plate solar collector absorber plate, transparent cover plate of flat plate solar heat collector, flat-plate solar collector thermal insulation layer and panel solar heat collector shell, sunlight is irradiated to surface through transparent cover plate and scribbles on the absorber of absorbed layer, wherein most of solar radiant energy is absorbed by absorber, change heat energy into, and be transmitted to the working medium in fluid passage.Like this, from the cold working medium of heat collector bottom inlet, in the fluid passage heat by solar energy, temperature raises gradually, the hot working fluid after heating, with the upper end outlet of useful heat energy from heat collector, stores in water storage tank stand-by, is useful energy income.Meanwhile, because absorber temperature raises, by transparent cover plate and shell to environment dissipated heat, the various heat loss of flat plate collector are formed.Because heat absorption efficiency is low and heat loss is high, cause the solar energy utilization ratio of current flat-plate solar heat collector not high, the efficiency of utilization improving plate type solar becomes problem in the urgent need to address at present.
summary of the invention:
The object of the invention is to provide a kind of flat-plate solar heat collector improving efficiency of utilization for above-mentioned Problems existing, effectively can improve the absorptivity of solar energy, reduce heat loss, more wide approach is opened up in the application for flat-plate solar collector simultaneously.
Above-mentioned object is realized by following technical scheme:
Improve the flat-plate solar heat collector of efficiency of utilization, comprise housing, one group of canalis pterygoideus is installed inside described housing, adjacent described canalis pterygoideus is communicated with by U-tube, described canalis pterygoideus connects feed tube and drain pipe respectively, is provided with thermal insulating filling between described canalis pterygoideus and described housing, and described canalis pterygoideus top is provided with selective absorbing dope layer, described canalis pterygoideus top is provided with safety glass layer, has vacuum cavity between described safety glass layer and described canalis pterygoideus.
The flat-plate solar heat collector of described raising efficiency of utilization, described thermal insulating filling comprises: pearl mica, talcum powder, coarse whiting, fine particle calcium carbonate, titanium dioxide, glass microballoon, bentonite, the parts by weight of each component are: pearl mica 10-20 part, talcum powder 5-10 part, coarse whiting 3-8 part, fine particle calcium carbonate 4-15 part, titanium dioxide 20-35 part, glass microballoon 10-15 part, bentonite 5-15 part, water above-mentioned raw materials being added 10-15 part is fully uniformly mixed, is drying to obtain.
The flat-plate solar heat collector of described raising efficiency of utilization, described coating for selective absorption comprises successively from top layer to internal layer: SiO
2film or Al
2o
3, thickness is 50-100nm, NiCrAlY alloy, and thickness is 100-200nm, copper film, and thickness is 100-200nm.
Beneficial effect:
The present invention adopts canalis pterygoideus, namely pipeline and flat board are one, the thermal efficiency is high, nothing is in conjunction with thermal resistance, because canalis pterygoideus adopts U-tube to join end to end, through multiple canalis pterygoideus heat exchange after heat medium flows into from first canalis pterygoideus, flow out from last canalis pterygoideus, heat exchange efficiency is high, simultaneously in order to improve heat absorption efficiency further, canalis pterygoideus of the present invention is coated with coating for selective absorption, have visible-near-infrared high-selenium corn, to the special coating of infrared light high reverse--bias, heat absorption efficiency is improved further, simultaneously in order to reduce the heat loss that canalis pterygoideus is caused by approach such as heat radiations, canalis pterygoideus top of the present invention is provided with safety glass layer, between described safety glass layer and described canalis pterygoideus, there is vacuum cavity, decrease the heat loss that convection current causes, further, thermal insulating filling is provided with between canalis pterygoideus of the present invention and described housing, also be conducive to reducing thermal convection current.
accompanying drawing illustrates:
Fig. 1 is plan structure schematic diagram of the present invention.
Fig. 2 is the A-A profile of Fig. 1.
In figure: 1, housing; 2, canalis pterygoideus; 3, U-tube; 4, feed tube; 5, drain pipe; 6, thermal insulating filling; 7, selective absorbing dope layer; 8, safety glass layer; 9, vacuum cavity.
detailed description of the invention:
Embodiment 1:
Improve the flat-plate solar heat collector of efficiency of utilization, comprise housing 1, one group of canalis pterygoideus 2 is installed inside described housing, adjacent described canalis pterygoideus is communicated with by U-tube 3, described canalis pterygoideus connects feed tube 4 and drain pipe 5 respectively, is provided with thermal insulating filling 6 between described canalis pterygoideus and described housing, and described canalis pterygoideus top is provided with selective absorbing dope layer 7, described canalis pterygoideus top is provided with safety glass layer 8, has vacuum cavity 9 between described safety glass layer and described canalis pterygoideus.
In the present embodiment, described thermal insulating filling comprises: pearl mica, talcum powder, coarse whiting, fine particle calcium carbonate, titanium dioxide, glass microballoon, bentonite, the parts by weight of each component are: pearl mica 10 parts, talcum powder 10 parts, coarse whiting 3 parts, fine particle calcium carbonate 4 parts, titanium dioxide 35 parts, glass microballoon 15 parts, bentonite 5 parts, water above-mentioned raw materials being added 10 parts is fully uniformly mixed, is drying to obtain.
In the present embodiment, described coating for selective absorption comprises successively from top layer to internal layer: SiO
2film or Al
2o
3, thickness is 50nm, NiCrAlY alloy, and thickness is 200nm, copper film, and thickness is 100nm.
Embodiment 2:
The difference of the present embodiment and embodiment 1 is: described thermal insulating filling comprises: pearl mica, talcum powder, coarse whiting, fine particle calcium carbonate, titanium dioxide, glass microballoon, bentonite, the parts by weight of each component are: pearl mica 20 parts, talcum powder 10 parts, coarse whiting 8 parts, fine particle calcium carbonate 4 parts, titanium dioxide 35 parts, glass microballoon 10 parts, bentonite 5 parts, water above-mentioned raw materials being added 15 parts is fully uniformly mixed, is drying to obtain.Described coating for selective absorption comprises successively from top layer to internal layer: SiO
2film or Al
2o
3, thickness is 100nm, NiCrAlY alloy, and thickness is 200nm, copper film, and thickness is 100nm.
Embodiment 3:
The difference of the present embodiment and embodiment 1 is: described thermal insulating filling comprises: pearl mica, talcum powder, coarse whiting, fine particle calcium carbonate, titanium dioxide, glass microballoon, bentonite, the parts by weight of each component are: pearl mica 14 parts, talcum powder 7 parts, coarse whiting 6 parts, fine particle calcium carbonate 12 parts, titanium dioxide 22 parts, glass microballoon 13 parts, bentonite 10 parts, water above-mentioned raw materials being added 12 parts is fully uniformly mixed, is drying to obtain.Described coating for selective absorption comprises successively from top layer to internal layer: SiO
2film or Al
2o
3, thickness is 80nm, NiCrAlY alloy, and thickness is 150nm, copper film, and thickness is 150nm.
Embodiment 4:
The difference of the present embodiment and embodiment 1 is: described thermal insulating filling comprises: pearl mica, talcum powder, coarse whiting, fine particle calcium carbonate, titanium dioxide, glass microballoon, bentonite, the parts by weight of each component are: pearl mica 16 parts, talcum powder 8 parts, coarse whiting 6 parts, fine particle calcium carbonate 12 parts, titanium dioxide 25 parts, glass microballoon 12 parts, bentonite 8 parts, water above-mentioned raw materials being added 12 parts is fully uniformly mixed, is drying to obtain.Described coating for selective absorption comprises successively from top layer to internal layer: SiO
2film or Al
2o
3, thickness is 100nm, NiCrAlY alloy, and thickness is 100nm, copper film, and thickness is 100nm.
Embodiment 5:
The difference of the present embodiment and embodiment 1 is: described thermal insulating filling comprises: pearl mica, talcum powder, coarse whiting, fine particle calcium carbonate, titanium dioxide, glass microballoon, bentonite, the parts by weight of each component are: pearl mica 16 parts, talcum powder 8 parts, coarse whiting 8 parts, fine particle calcium carbonate 6 parts, titanium dioxide 25 parts, glass microballoon 14 parts, bentonite 8 parts, water above-mentioned raw materials being added 12 parts is fully uniformly mixed, is drying to obtain.Described coating for selective absorption comprises successively from top layer to internal layer: SiO
2film or Al
2o
3, thickness is 60nm, NiCrAlY alloy, and thickness is 120nm, copper film, and thickness is 180nm.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also comprises and is equal to by above technical characteristic the technical scheme that replacement forms.Unaccomplished matter of the present invention, belongs to the common practise of those skilled in the art.
Claims (3)
1. one kind is improved the flat-plate solar heat collector of efficiency of utilization, comprise housing, it is characterized in that, one group of canalis pterygoideus is installed inside described housing, adjacent described canalis pterygoideus is communicated with by U-tube, described canalis pterygoideus connects feed tube and drain pipe respectively, thermal insulating filling is provided with between described canalis pterygoideus and described housing, described canalis pterygoideus top is provided with selective absorbing dope layer, described canalis pterygoideus top is provided with safety glass layer, has vacuum cavity between described safety glass layer and described canalis pterygoideus.
2. the flat-plate solar heat collector of raising efficiency of utilization according to claim 1, it is characterized in that, described thermal insulating filling comprises: pearl mica, talcum powder, coarse whiting, fine particle calcium carbonate, titanium dioxide, glass microballoon, bentonite, the parts by weight of each component are: pearl mica 10-20 part, talcum powder 5-10 part, coarse whiting 3-8 part, fine particle calcium carbonate 4-15 part, titanium dioxide 20-35 part, glass microballoon 10-15 part, bentonite 5-15 part, water above-mentioned raw materials being added 10-15 part is fully uniformly mixed, is drying to obtain.
3. the flat-plate solar heat collector of raising efficiency of utilization according to claim 1 and 2, is characterized in that, described coating for selective absorption comprises successively from top layer to internal layer: SiO
2film or Al
2o
3, thickness is 50-100nm, NiCrAlY alloy, and thickness is 100-200nm, copper film, and thickness is 100-200nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310417288.8A CN104456984A (en) | 2013-09-13 | 2013-09-13 | Flat plate type solar heat collector for improving heat utilization efficiency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310417288.8A CN104456984A (en) | 2013-09-13 | 2013-09-13 | Flat plate type solar heat collector for improving heat utilization efficiency |
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| Publication Number | Publication Date |
|---|---|
| CN104456984A true CN104456984A (en) | 2015-03-25 |
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|---|---|---|---|
| CN201310417288.8A Pending CN104456984A (en) | 2013-09-13 | 2013-09-13 | Flat plate type solar heat collector for improving heat utilization efficiency |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360746A (en) * | 2018-04-10 | 2019-10-22 | 株式会社电装 | Electric heater device |
| CN110356197A (en) * | 2018-04-10 | 2019-10-22 | 株式会社电装 | Electric heater device |
-
2013
- 2013-09-13 CN CN201310417288.8A patent/CN104456984A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360746A (en) * | 2018-04-10 | 2019-10-22 | 株式会社电装 | Electric heater device |
| CN110356197A (en) * | 2018-04-10 | 2019-10-22 | 株式会社电装 | Electric heater device |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |