CN104833112A - Flat-plate concentrating solar heat collector - Google Patents
Flat-plate concentrating solar heat collector Download PDFInfo
- Publication number
- CN104833112A CN104833112A CN201510213626.5A CN201510213626A CN104833112A CN 104833112 A CN104833112 A CN 104833112A CN 201510213626 A CN201510213626 A CN 201510213626A CN 104833112 A CN104833112 A CN 104833112A
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- heat
- heat collector
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- collector
- 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
Abstract
The invention discloses a flat-plate concentrating solar heat collector which comprises a heat collector combined outer frame, heat collector heat tubes, a glass cover plate and a reflecting sheet, wherein the glass cover plate is arranged above the heat collector heat tubes; the reflecting sheet is arranged below the heat collector heat tubes; the heat collector heat tubes, the glass cover plate and the reflecting sheet are mounted into a whole by the heat collector combined outer frame. The flat-plate concentrating solar heat collector is characterized in that the reflecting sheet consists of a plurality of hyperbolic parabolic condensers; the surface of the reflecting sheet is plated with a mirror surface reflecting film; one hyperbolic parabolic condenser is arranged below each heat collector heat tube; a matrix of each heat collector heat tube is an inner film-coated stainless steel tube; a glass tube sleeves the outside of an intermediate section of each heat collecting heat tube; each glass tube and the corresponding inner film-coated stainless steel tube are sealed by a kovar alloy; expansion joint bellows are arranged at two ends of each inner film-coated stainless steel tube; a plurality of heat collector heat tubes are arranged side by side in parallel; the heads and the tails of the heat collector heat tubes are connected into a whole by the expansion joint bellows in series or in parallel.
Description
Technical field
The present invention relates to solar energy heat utilization field, be specifically related to a kind of flat-plate concentration type solar heat pipe collector.
Background technology
Solar energy techniques provides bright prospects for not solving energy problem, current solar water heater mainly contains high-boron-silicon glass electron tubes type and blue flat two kinds of the film of high efficiency heat absorption, vacuum tube has developed more than 20 year, coating process is very ripe, from single target to multi-target magnetic control sputtering coating technique, current rete heat absorption efficiency reaches more than 94%, low temperature reflectivity reaches less than 6%, be in more satisfactory state, as long as the higher vacuum tube of quality can be produced according to maturation process strict production control process, vacuum tube water heater has good advantage, the low good heat insulation of absorption per unit area rate high emissivity, compared with cryogenic region, there is advantageous superiority especially, but also have obvious shortcoming, well cannot combine with building, limitation endotherm area by caliber is little, double glazing heat absorption efficiency is affected, the easy breakage of glass is congenital has potential safety hazard, therefore external vacuum tube type water heater uses less, it is large that flat casing water-heater has illuminating area, heat absorption rate high heat transfer is fast, easily combine with building, cover plate is that tempering ultra-clear glasses does not have the advantages such as potential safety hazard, but also there is obvious shortcoming, the large area of dissipation of endotherm area is also large so thermal equilibrium temperature is lower, efficient cryogenic, high temperature cannot be obtained, there is no insulating power, medium heat conduction will be leaned on to prevent hot water fouling, so be only suitable in district higher in southern temperature, up to the present also do not have a kind of water heater can in conjunction with the advantage of these two kinds of water heaters, be convenient to promote in any region, common water heater can be solved again from low temperature to middle developer temperature, and can steam type water heater be developed into, trouble installed by water heater simultaneously, parts are more, not easy care again, that conventional vacuum tubular type or ordinary flat formula are all the same, winter often becomes ornaments, heavy dependence electricity auxiliary heating, the blue film of flat water heater exposes the very fast lifetime that decays in atmosphere and greatly shortens, state's heater inside price war grows in intensity, solar water heater industry is in obvious decay state.
Summary of the invention
The invention provides a kind of flat-plate concentration type solar thermal collector, comprise heat collector combination housing, heat collector heat pipe, glass cover-plate, reflecting plate, be glass cover-plate above heat collector heat pipe, below is reflecting plate, installs as a whole by heat collector combination housing; It is characterized in that: described reflecting plate is made up of some hyperbolic-parabolic solar panels, and surface is coated with specular reflection film, every root heat collector heat pipe arranged beneath one piece of hyperbolic-parabolic solar panel.
Further, heat collector heat pipe matrix is interior plated film stainless steel tube, interlude outer casing glass tube, glass tube and the sealing-in of interior plated film stainless steel tube kovar alloy, interior plated film stainless steel tube two ends arranges swelling red sandstone, some heat collector heat pipes are side by side parallel, and head and the tail are integrated by swelling red sandstone and fitting passage serial or parallel connection.
Further, heat collector combination housing comprises fixed base plate, surrounding fixed head, junction, heat collector heat pipe two ends integral foam forms fixing insulation module, perforate on fixed head, be respectively heat-conducting medium import and outlet, the heat collector heat pipe be connected as a single entity is arranged on the inlet and outlet of fixed head by fitting passage, some hyperbolic-parabolic solar panel arranged in parallel are spliced into and are integrally placed on fixed base plate.
Further, glass cover-plate is tempering ultra-clear glasses cover plate, and upper surface is plane, and lower surface is provided with Fresnel light condensing lens, forms complementary combined light gathering structure with the hyperbolic-parabolic solar panel on fixed base plate.
Further, after heat collector combines housing and is incubated module group assembling, aluminium alloy glass press strip forms hermetically-sealed construction.
Flat-plate concentration type solar heat pipe collector provided by the invention, adopt flat, heat collector can be made easily to gather mutually with building, there is no potential safety hazard, easy installation and maintenance, functionally can realize increasing illuminating area, significantly improve heat absorption efficiency, be conducive to temperature (within 300 DEG C) heat energy in efficient storage, in engineering, large area parallel connection uses, stable steam supply can be realized, organic assembling according to demand.
Less than 30 times optically focused, adopt medium heat conduction in metal heat pipe, and overall structure is simple, and medium heat-collecting temperature can reach 300 DEG C, are a kind of efficient medium-temperature collectorses.
Described tempering ultra-clear glasses cover plate, be divided into two kinds, one is direct transmission-type tempering plated film ultra-clear glasses cover plate, corresponding with it below it is hyperbolic-parabolic speculum, within can designing concentration magnification 30 times, disposable light gathering efficiency is high, and installing heat collector needs to do simple tracking sunshine device, can be that flat list is followed or tiltedly list, with mode, is as engineering heat collector ideal scheme warm in solar energy.
Another kind is that glass cover-plate lower surface is provided with Fresnel light condensing lens, corresponding with it below it is hyperbolic-parabolic speculum, heat pipe is in centre, sunshine direct projection is converged through Fresnel light condensing lens and is impinged upon on heat pipe, partially penetrating when sunshine converges on hyperbolic-parabolic speculum, parabola through round-the-clock optics board design can reflex to converged light on heat pipe in larger tolerance angular range, only needing to place by season by local latitude angle or place by requirement in winter, realizing the home-use high-efficiency heat pipe heat collector without the need to following the tracks of.
Wherein collector lens adopt groove to inner plane outwardly utilizing line-focus Fresnel lens design, lens glass adopts tempering coating film treatment, coated glass increases incident light transmission rate, and reduce surperficial incident light reflectivity, double-sided coating also helps glass surface self-cleaning function, lens adopt low iron ultra-clear glasses material, and tempering requirement of strength reaches the standard of national flat water heater cover-plate glass.
Heat collector heat pipe comprises through type and single-pass formula two kinds of heat pipes, hyperbolic-parabolic solar panel, comprise global formation hyperbolic-parabolic device, device can adopt the mode of die cast or calendering formation or roll-forming to form one, efficient specular reflection film is coated with after hyperbolic-parabolic surface finish and high light spraying drying and processing, can according to the different optically focused requirement of specific product, design and the corresponding hyperbolic-parabolic speculum of optical analog.
Heat collector heat pipe according to product light concentrating times and appearance and size determine heat pipe concrete in the radical that uses of pipe and outer tube diameter, heat pipe external structure length and needing.
The assembling process of flat-plate concentration type solar heat pipe collector of the present invention is: the combination housing first aluminium alloy made and the pressing of galvanized steel plain sheet base plate are shaped, composite parabolic speculum is fixed on base plate and two is fixed on the fixed head of perforate, middle heat pipe is fixed according to sophisticated design size, heat pipe and connecting tube unit is made to be fixed in the insulation module at two, insulation module is fixed on inside aluminum alloy combination housing, after whole heat collector internal placement fixedly completes, add ultra-clear glasses or the glass cover-plate with collector lens, assemble on a production line, play glue and seal whole explained hereafter.
Beneficial effect: flat-plate concentration type solar heat pipe collector provided by the invention, compared to the prior art has the following advantages:
Reasonable in design, adopt flat, easily gather mutually with building, there is no potential safety hazard, easy installation and maintenance, functionally can realize increasing illuminating area, greatly improve heat absorption rate and energy high-temperature storage heat energy, in engineering, large area uses, and can realize stable steam supply, applied widely, warmly during water heater is entered utilize the epoch.
(1) engineering heat collector is adopted simply to follow the tracks of, household heat collector exempts from Tracking method, heat pipe is arranged in the burnt band place of lens, water heater is placed according to glass lens thing and is coordinated local latitude angle to install, be equivalent to one dimension tracking effect, coordinate bottom hyperbolic-parabolic reflective mirror, do not adding in tracking situation, when light belt departs from, bottom viewfinder can be reflected back heat pipe departing from light belt within the specific limits.
(2) in the present invention, heat accumulation type vacuum heat-pipe is a kind of skin is high-boron-silicon glass pipe, internal layer is the metal tube through too much target material magnetic sputtering plated film, through kovar alloy and high-boron-silicon glass transition sealing by fusing, weld with pipe in stainless steel again, exhaust vacuumizes sealing and produces high-efficiency heat pipe, due to more than 100 times that metal tube thermal conductivity factor is glass, so the heat absorption conductive efficiency of heat pipe is more than one times of ordinary vacuum tube, add that several times optically focused makes heat-pipe medium can be heated to 300 DEG C, in realization, warm heat accumulation heat becomes a reality.
(3) in the present invention, thermal conductive pipe can serial or parallel connection independent assortment as required, expands the civilian scope of application combined with the versatility of engineering heat collector.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of specific embodiment of the invention middle plateform light-focusing type solar pipe heat collector.
Fig. 2 is STRUCTURE DECOMPOSITION schematic diagram.
Fig. 3 is heat collector heat pipe unit structural representation.
Fig. 4 is light focusing unit structural representation.
In figure: 1 heat collector combination housing, 1-1 fixed head, 1-2 glass cover-plate, 1-3 aluminium alloy glass press strip, 1-4 fixed base plate, 1-5 hole, 2 heat collector heat pipes, plated film stainless steel tube in 2-1,2-2 swelling red sandstone, 2-3 kovar alloy, 2-4 glass tube, 3-reflecting plate, 4-is incubated module.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
As shown in Figure 1, 2, a kind of flat-plate concentration type solar heat pipe collector, it comprises: heat collector combination housing 1, heat collector heat pipe 2, reflecting plate 3 are glass cover-plate 1-2 above heat collector heat pipe 2, below is reflecting plate 3, installs as a whole by heat collector combination housing; Heat collector combination housing 1 comprises fixed base plate 1-4, surrounding fixed head 1-1, junction, heat collector heat pipe 2 two ends integral foam forms fixing insulation module 4, perforate 1-5 on fixed head 1-1, be respectively heat-conducting medium import and outlet, the heat collector heat pipe 2 be connected as a single entity is arranged on the inlet and outlet of fixed head 1-1 by fitting passage.
Reflecting plate 3 is made up of some hyperbolic-parabolic solar panels, and surface is coated with specular reflection film, every root heat collector heat pipe 2 arranged beneath one piece of hyperbolic-parabolic solar panel.Some hyperbolic-parabolic solar panel arranged in parallel are spliced into and are integrally placed on fixed base plate 1-4.Glass cover-plate 1-2 is tempering ultra-clear glasses cover plate, and upper surface is plane, and lower surface is provided with Fresnel light condensing lens, forms complementary combined light gathering structure with the hyperbolic-parabolic solar panel on fixed base plate 1-4.After heat collector combination housing 1 and insulation module 4 are assembled, aluminium alloy glass press strip 1-3 forms hermetically-sealed construction.Fixed base plate 1-4 adopts galvanized steel plain sheet.
As shown in Figure 3, heat collector heat pipe 2 matrix is interior plated film stainless steel tube 2-1, interlude outer casing glass tube 2-4, glass tube 2-4 and interior plated film stainless steel tube 2-1 kovar alloy 2-3 sealing-in, interior plated film stainless steel tube 2-1 two ends arranges swelling red sandstone 2-2, some heat collector heat pipes 2 are side by side parallel, and head and the tail are integrated by swelling red sandstone 2-2 and fitting passage serial or parallel connection.Shown in Fig. 33 heat collector heat pipe 2 head and the tail are installed in series on the fixed head 1-1 of the same side.Heat collector heat pipe 2 produces middle temperature thermal-collecting tube by metal inner pipe through kovar alloy and glass head seal, and thermal-collecting tube, according to hyperbolic-parabolic reflecting plate focal position, is arranged on heat collector combination housing perforate fixed head two.Heat collector heat pipe 2 comprises through type and single-pass formula two kinds of heat pipes.
Tempering ultra-clear glasses cover plate can be the glass cover-plate that lower surface is provided with Fresnel light condensing lens also can be dull and stereotyped Nonopaque type glass cover-plate, the former and hyperbolic-parabolic solar panel form complementary combined light gathering, the latter and bottom hyperbolic-parabolic solar panel form an optically focused, toughened process all wanted by ultra-clear glasses cover plate, exempting to follow the tracks of and simple one dimension tracking decision according to product, is with Fresnel Lenses formula or flat-plate transmission type glass cover-plate.
Hyperbolic-parabolic solar panel comprises global formation hyperbolic-parabolic device, device can adopt the mode of die cast or calendering formation or roll-forming to form one, efficient specular reflection film and diaphragm is coated with after hyperbolic-parabolic surface finish and high light powder spraying drying and processing, can according to the different optically focused requirement of specific product, design and the corresponding hyperbolic-parabolic solar panel of optical analog, concentrating light principles as shown in Figure 4, 1-2 is the cover-plate glass with linear Fresnel collector lens, do not following the tracks of under prerequisite, in certain light range of tolerable variance, the sunshine converged can converge and reflex on heat collector heat pipe 2.
Heat collector heat pipe series-parallel system can be selected according to heat-conducting medium difference and import and export position, but all taking tube connector insulation and two ends integrated foaming heat preservation to fix, forming integral heat insulation module.
Heat collector heat pipe 2 determines according to product light concentrating times and appearance and size: pipe and outer tube diameter in concrete, external structure length and the radical needing to use.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a flat-plate concentration type solar thermal collector, comprise heat collector combination housing, heat collector heat pipe, glass cover-plate, reflecting plate, be glass cover-plate above heat collector heat pipe, below is reflecting plate, installs as a whole by heat collector combination housing; It is characterized in that: described reflecting plate is made up of some hyperbolic-parabolic solar panels, and surface is coated with specular reflection film, every root heat collector heat pipe arranged beneath one piece of hyperbolic-parabolic solar panel.
2. flat-plate concentration type solar thermal collector according to claim 1, it is characterized in that: heat collector heat pipe matrix is interior plated film stainless steel tube, interlude outer casing glass tube, glass tube and the sealing-in of interior plated film stainless steel tube kovar alloy, interior plated film stainless steel tube two ends arranges swelling red sandstone, some heat collector heat pipes are side by side parallel, and head and the tail are integrated by swelling red sandstone and fitting passage serial or parallel connection.
3. flat-plate concentration type solar thermal collector according to claim 1, it is characterized in that: heat collector combination housing comprises fixed base plate, surrounding fixed head, junction, heat collector heat pipe two ends integral foam forms fixing insulation module, perforate on fixed head, be respectively heat-conducting medium import and outlet, the heat collector heat pipe be connected as a single entity is arranged on the inlet and outlet of fixed head by fitting passage, some hyperbolic-parabolic solar panel arranged in parallel are spliced into and are integrally placed on fixed base plate.
4. flat-plate concentration type solar thermal collector according to claim 1, it is characterized in that: glass cover-plate is tempering ultra-clear glasses cover plate, upper surface is plane, and lower surface is provided with Fresnel light condensing lens, forms complementary combined light gathering structure with the hyperbolic-parabolic solar panel on fixed base plate.
5. flat-plate concentration type solar thermal collector according to claim 3, is characterized in that: after heat collector combines housing and is incubated module group assembling, aluminium alloy glass press strip forms hermetically-sealed construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510213626.5A CN104833112A (en) | 2015-04-29 | 2015-04-29 | Flat-plate concentrating solar heat collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510213626.5A CN104833112A (en) | 2015-04-29 | 2015-04-29 | Flat-plate concentrating solar heat collector |
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| CN104833112A true CN104833112A (en) | 2015-08-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524534A (en) * | 2016-10-13 | 2017-03-22 | 西安建筑科技大学 | High-strength high-weather-resistance concentrating collector |
| CN108645056A (en) * | 2018-05-03 | 2018-10-12 | 昆明理工大学 | A kind of equal receptions escape half-angle solar light-condensing and heat-collecting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524534A (en) * | 2016-10-13 | 2017-03-22 | 西安建筑科技大学 | High-strength high-weather-resistance concentrating collector |
| CN108645056A (en) * | 2018-05-03 | 2018-10-12 | 昆明理工大学 | A kind of equal receptions escape half-angle solar light-condensing and heat-collecting device |
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Application publication date: 20150812 |
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