CN116928896A - Ultra-high reflection high weather-proof frost-proof sandwich reflector for concentrating collector - Google Patents
Ultra-high reflection high weather-proof frost-proof sandwich reflector for concentrating collector Download PDFInfo
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- CN116928896A CN116928896A CN202210354226.6A CN202210354226A CN116928896A CN 116928896 A CN116928896 A CN 116928896A CN 202210354226 A CN202210354226 A CN 202210354226A CN 116928896 A CN116928896 A CN 116928896A
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- 239000002184 metal Substances 0.000 claims abstract description 71
- 229910052751 metal Inorganic materials 0.000 claims abstract description 71
- 239000005329 float glass Substances 0.000 claims abstract description 46
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 230000003075 superhydrophobic effect Effects 0.000 claims abstract description 18
- 238000003475 lamination Methods 0.000 claims abstract description 17
- 239000005341 toughened glass Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 143
- 238000010521 absorption reaction Methods 0.000 claims description 64
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 11
- 230000002708 enhancing effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000002086 nanomaterial Substances 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 abstract description 12
- 238000004140 cleaning Methods 0.000 abstract description 11
- 238000010257 thawing Methods 0.000 abstract description 7
- 230000001934 delay Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 7
- 230000002265 prevention Effects 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
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- 238000001228 spectrum Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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- 239000007888 film coating Substances 0.000 description 1
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- 238000013003 hot bending Methods 0.000 description 1
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- -1 reflection stratum Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/82—Arrangements for concentrating solar-rays for solar heat collectors with reflectors characterised by the material or the construction of the reflector
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/20—Cleaning; Removing snow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/10—Details of absorbing elements characterised by the absorbing material
- F24S70/12—Details of absorbing elements characterised by the absorbing material made of metallic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
- F24S70/225—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption for spectrally selective absorption
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
- G02B5/0825—Multilayer mirrors, i.e. having two or more reflecting layers the reflecting layers comprising dielectric materials only
- G02B5/0833—Multilayer mirrors, i.e. having two or more reflecting layers the reflecting layers comprising dielectric materials only comprising inorganic materials only
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Inorganic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The application discloses an ultra-high reflection high weather-proof frost-proof sandwich reflector for a concentrating collector, wherein a frost-proof snow super-hydrophobic coating is positioned on the upper surface of ultra-white semi-tempered float glass, a first reflection-reducing layer is positioned on the lower surface of the ultra-white semi-tempered float glass, a reflecting layer is positioned on the lower surface of the first reflection-reducing layer, a reflection-reducing layer is positioned on the lower surface of the reflecting layer, a metal doped absorbing layer is positioned on the lower surface of the reflection-reducing layer, a second reflection-reducing layer is positioned on the lower surface of the metal doped absorbing layer, a float full-tempered glass support is bonded with the second reflection-reducing layer on the lower surface of the ultra-white semi-tempered float glass through a bonding layer by adopting a vacuum lamination process, so that the sandwich concentrating reflector is formed, and the periphery of the sandwich concentrating reflector is subjected to edge sealing treatment by adopting a sealing agent. The application not only ensures that the reflectivity reaches 95.5-97%, but also has strong weather resistance, greatly shortens the defrosting time, daily cleaning time and cleaning frequency in winter of the condensing reflector, delays the attenuation of the reflectivity, and prolongs the service life.
Description
Technical Field
The application belongs to the field of heat collecting pipes, and particularly relates to an ultrahigh-reflection high-weather-resistance frost-prevention sandwich reflector for a concentrating collector.
Background
The concentrating solar thermal power generation system utilizes a concentrating solar collector to convert solar radiation energy into heat energy, and then generates power through a steam turbine and a generator. According to different focusing forms, the concentrating solar heat collection power generation system mainly comprises a tower type, a groove type and a disc type.
In a concentrating solar thermal power generation system, the optical focusing performance and weather resistance of the reflecting mirrors in the mirror field directly affect the photo-thermal conversion efficiency of the whole thermal collection field. The existing condensing reflector has the following defects:
1) The existing condensing reflector adopts 4-5mm ultra-white float glass, is formed into a required shape through hot bending, is easy to generate wind ripple to cause optical performance distortion, and meanwhile, the back surface adopts the silver of the chemical plating reflecting layer, so that uniformity and compactness of the reflecting layer are difficult to ensure, and the reflectivity of the existing photo-thermal condensing reflector is less than or equal to 94.5%.
2) The back of the reflecting layer adopts expensive paint as a protective layer, so that the cost is high, and the ageing or damage of the paint easily causes the damage of the reflecting layer, thereby reducing the reflectivity.
3) In winter, because the surface of the light-gathering reflector is easy to frost, long time (3-4 hours) is needed each day to defrost through solar heat energy, and the utilization efficiency of the full-field heat collector is reduced.
4) In order to ensure the optical performance of the mirror, it is necessary to keep the surface of the mirror clean and to maximize its reflectivity. However, the current mirror cleaning adopts a water-washing mode, so that the cleaning frequency is generally once per week, and the cleaning cost is high in order to achieve a certain cleanliness.
(5) Compared with the existing single super-white toughened glass condensing reflector, the structure is complex, and the film system is various, so that the manufacturing process (including a film coating process and a vacuum lamination process) and the equipment requirements are high.
Disclosure of Invention
In order to solve the prior art problems, the application provides the ultra-high reflection high weather-proof frost-proof sandwich reflecting mirror for the concentrating collector, which not only ensures that the reflectivity of the reflecting mirror reaches 95-97%, but also has strong weather resistance, thereby greatly shortening the defrosting time, daily cleaning time and cleaning frequency of the concentrating reflecting mirror in winter, delaying the attenuation of the reflectivity and prolonging the service life.
The technical scheme adopted in the application is as follows:
the utility model provides an ultra-high reflection high weather resistant frost prevention intermediate layer speculum for spotlight collector, includes frost prevention snow super-hydrophobic coating, super white semi-rigid float glass, first reflection-increasing layer, reflection stratum, metal doping absorption layer, second reflection-increasing layer and float full rigid glass support, frost prevention snow super-hydrophobic coating is located super white semi-rigid float glass's upper surface, first reflection-increasing layer is located super white semi-rigid float glass's lower surface, the reflection stratum is located first reflection-increasing layer's lower surface, reflection stratum is located reflection stratum's lower surface, metal doping absorption layer is located reflection-increasing layer's lower surface, second reflection-increasing layer is located metal doping absorption layer's lower surface, float full rigid glass support adopts the vacuum lamination technology with super white semi-rigid float glass's second reflection-increasing layer bonding, intermediate layer spotlight speculum adopts banding agent to carry out banding around the intermediate layer spotlight speculum.
Preferably, the frost and snow preventing super-hydrophobic coating is an organosilicon-based nano-material coating, and the thickness of the frost and snow preventing super-hydrophobic coating is 150-200 nm.
Preferably, the ultra-white semi-tempered float glass is low-iron ultra-white float glass, and the thickness of the ultra-white semi-tempered float glass is 1-1.8 mm.
Preferably, the ultra white semi-tempered float glass is planar in structure prior to lamination.
Preferably, the first anti-reflection layer and the second anti-reflection layer are both SiO 2 An anti-reflection layer, the thickness of the first anti-reflection layer is 50-100nm, and the thickness of the second anti-reflection layer is 100-200 nm.
Preferably, the reflective layer is an Ag reflective layer, and the thickness thereof is 150-250 nm.
Preferably, the reflection enhancing layer is a Cu reflection enhancing layer, and the thickness of the reflection enhancing layer is 100-150 nm.
Preferably, the metal doped absorption layer is a multi-layer metal doped absorption layer, and the super-white semi-tempered float glass sequentially comprises a high-volume metal doped absorption layer, a medium-volume metal doped absorption layer and a low-volume metal doped absorption layer from the near to the far, wherein the metal doping proportion of the high-volume metal doped absorption layer is 55% -65%, and the thickness of the high-volume metal doped absorption layer is 100-220 nm; the metal doping proportion of the medium-volume metal doping absorption layer is 40% -55%, and the thickness of the medium-volume metal doping absorption layer is 100-220 nm; the metal doping proportion of the medium-volume metal doped absorption layer of the low-volume metal doped absorption layer is 30% -40%, and the thickness of the medium-volume metal doped absorption layer is 100-220 nm; the high-volume metal doped absorption layer, the medium-volume metal doped absorption layer and the low-volume metal doped absorption layer are SS+AlSiOx metal doped absorption layers or SS+AlN metal doped absorption layers.
Preferably, the adhesive layer is made of a light-transmitting EVA material or a POE material.
Preferably, the thickness of the float fully tempered glass support is 3-5 mm.
The beneficial effects are that: the application provides an ultra-high reflection high weather-proof frost-proof sandwich reflector for a concentrating collector, which has the following advantages:
(1) The ultra-white semi-tempered float glass has a planar structure before lamination, so that wind ripple and optical property distortion can be reduced, and the transmittance can be improved;
(2) The application has strong weather resistance, and greatly shortens the winter defrosting time, the daily cleaning time and the cleaning frequency of the condensing reflector;
(3) The reflective layer and the absorbing layer of the application are both between the vacuum laminated double glazing, thus enabling the coating to have a longer service life and a slower decay in reflectivity.
(4) According to the application, the absorption layer structure design of the sandwich reflector is adopted, and the temperature change range of the adhesive layer caused by absorption energy is controlled to be 45-80 ℃, so that the rapid defrosting in winter can be ensured, and the adhesive layer is prevented from being damaged in summer.
(5) The frost and snow preventing super-hydrophobic coating on the outer surface of the reflecting glass (super-white semi-tempered float glass) of the sandwich reflecting mirror has a self-cleaning function, and frost and snow prevention are reduced.
Drawings
Fig. 1 is an overall construction diagram of the present application.
Fig. 2 is a schematic structural diagram of the embodiment 1 after step S1.
Fig. 3 is an emissivity spectrum of example 1.
Fig. 4 is an emissivity spectrum of the comparative example.
In the figure: frosting and snow preventing super-hydrophobic coating 1, super-white semi-tempered float glass 2 and first SiO 2 An anti-reflection layer 3, an Ag reflecting layer 4, a Cu anti-reflection layer 5, a high-volume metal doped absorption layer 6-1, a medium-volume metal doped absorption layer 6-2, a low-volume metal doped absorption layer 6-3 and a second SiO 2 The anti-reflection layer 7, the bonding layer 8, the float fully tempered glass support 9 and the edge sealing agent 10.
Detailed Description
In order to better understand the technical solutions of the present application for those skilled in the art, the following description of the technical solutions of the embodiments of the present application will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, shall fall within the scope of the application.
Example 1
As shown in figure 1, the ultra-high reflection high weather-proof frost-proof sandwich reflector for the concentrating collector sequentially comprises a frost-proof snow super-hydrophobic coating 1, ultra-white semi-tempered float glass 2 and a first SiO from outside to inside 2 An anti-reflection layer 3, an Ag reflecting layer 4, a Cu anti-reflection layer 5, a high-volume metal doped absorption layer 6-1, a medium-volume metal doped absorption layer 6-2, a low-volume metal doped absorption layer 6-3 and a second SiO 2 An anti-reflection layer 7, an adhesive layer 8 and a float fully tempered glass support 9.
In this embodiment, the frost and snow resistant superhydrophobic coating 1 is disposed on an outer surface of the ultrawhite semi-tempered float glass 2. The frost and snow preventing super-hydrophobic coating 1 is an organosilicon-based nano material, and can form a transparent super-hydrophobic film on the surface of the super-white semi-tempered float glass 2, so that the transmittance of a glass substrate can be improved by more than 1%, and the frost and snow preventing and self-cleaning functions are achieved. The construction method of the frost and snow prevention super-hydrophobic coating 1 can select a spray coating or spraying process, the thickness of the frost and snow prevention super-hydrophobic coating 1 is 150nm-200nm, and the outdoor construction environment can be naturally air-dried under sunlight.
The ultra-white semi-tempered float glass 2 is low-iron ultra-white float glass with a planar structure before lamination, and has a thickness of 1-1.8 mm so as to increase light transmittance and softness, and the ultra-white semi-tempered float glass 2 has a planar structure before lamination, so that wind ripple and optical property distortion can be reduced, and the transmittance can be improved.
First SiO 2 The anti-reflection layer 3 is positioned on the inner surface of the ultra-white semi-tempered float glass 2, so that the transmittance can be further improved, and the thickness of the anti-reflection layer is 50-100 nm.
The Ag reflecting layer 4 is located at SiO 2 The lower surface of the anti-reflection layer 3 is a reflecting layer of the ultra-white semi-tempered float glass 2, and the thickness is 150-250 nm.
The Cu reflection enhancing layer 5 is positioned on the lower surface of the Ag reflecting layer 4, so that the reflectivity is further improved, and the thickness is 100-150 nm.
The high-volume metal doped absorption layer 6-1 is positioned below the Cu anti-reflection layer 5, the metal doping proportion is 65% -55%, and the thickness is 100-220 nm.
The medium volume metal doped absorption layer 6-2 is positioned below the high volume metal doped absorption layer 6-1, the metal doping proportion is 55% -40%, and the thickness is 100-220 nm.
The low-volume metal doped absorption layer 6-3 is positioned below the medium-volume metal doped absorption layer 6-2, the metal doping proportion is 40% -30%, and the thickness is 100-220 nm.
Wherein the high volume metal doped absorption layer 6-1, the medium volume metal doped absorption layer 6-2 and the low volume metal doped absorption layer 6-3 are SS+AlSiOx absorption layers or SS+AlN absorption layers, SS is stainless steel doped, alSiOx is Al 2 O 3 With SiO 2 Is a mixture of xThe number of O atoms in the table is an uncertainty value.
Second SiO 2 The anti-reflection layer 7 is positioned below the low-volume metal doped absorption layer 6-3, and the thickness of the anti-reflection layer is 100-200 nm.
The bonding layer 8 is light-transmitting EVA or POE, and the vacuum lamination process has a vacuum heat treatment function on all coatings on the inner surface of the ultra-white semi-tempered float glass 2, so that the microstructure is changed from microcosmic, the dissolved moisture and gas are further eliminated, the reflectivity (about 0.5%) is improved, the microstructure of the coating is well protected, the compactness and toughness of the coating are further improved, and the reflectivity after vacuum lamination is 95.5% -97%.
The thickness of the float fully tempered glass support 9 is 3-5 mm, and the float fully tempered glass support is made into a curved surface or a plane according to design requirements according to different types of heat collectors.
The edge sealing agent 10 is a liquid formed by mixing modified acrylic resin and ethyl acetate according to a proportion (in the prior art), and is coated on the periphery of the sandwich reflector in a brush coating manner, so that moisture in the atmosphere is prevented from penetrating into the bonding layer, and the bonding layer is protected from being damaged by hydrolysis.
In the present application, the float fully tempered glass support 9 is required to be thermally bent into a desired parabolic curved surface in advance for the trough type collector.
The manufacturing steps of the sandwich reflector of the embodiment 1 of the application are as follows:
s1, sequentially forming a first SiO on the inner surface of ultra-white semi-tempered float glass 2 by adopting a vacuum magnetron sputtering process 2 An anti-reflection layer 3, an Ag reflecting layer 4, a Cu anti-reflection layer 5, a high-volume metal doped absorption layer 6-1, a medium-volume metal doped absorption layer 6-2, a low-volume metal doped absorption layer 6-3 and a second SiO 2 An anti-reflection layer 7 as shown in fig. 2;
s2, bonding the ultra-white semi-tempered float glass 2 subjected to vacuum magnetron coating and the float fully tempered glass support 9 together by using a vacuum lamination process and a support die and using a bonding layer 8, wherein the ultra-white semi-tempered float glass 2 is bonded together along with the shape change of the float fully tempered glass support 9 in the lamination process, so that the interlayer condensing reflector is formed.
S3, edge sealing treatment is carried out on the interlayer condensing reflector by using the edge sealing agent 10, so that the hydrolysis of the adhesive by moisture and hydrosphere in the atmospheric environment is prevented;
and S4, brushing the frost and snow preventing super-hydrophobic coating 1 on the outer surface of the super-white semi-tempered float glass 2 of the sandwich reflector by adopting a spray coating or spraying process, so as to obtain the super-high reflection high weather-proof frost-preventing sandwich reflector, as shown in figure 1.
The working principle of the application is as follows:
in the application, the high-volume metal doped absorption layer 6-1, the medium-volume metal doped absorption layer 6-2, the low-volume metal doped absorption layer 6-3 and the second SiO 2 The anti-reflection layer 7 forms an absorption layer, and when defrosting, the float fully tempered glass support 9 faces the sun irradiation direction, so that the absorption layer absorbs solar energy and transfers heat to the outer surface of the ultra-white semi-tempered float glass 2, thereby being capable of rapidly melting surface frost and achieving the purpose of rapid defrosting. In addition, the heat absorbed by the absorbing layer can control the temperature of the binder material within the range of 45-80 ℃, so that damage caused by the fact that the temperature of the glue layer exceeds 80 ℃ in summer and reduction of defrosting efficiency caused by too low temperature of the outer surface of the ultra-white semi-tempered float glass 2 in winter are avoided.
Comparison of technical effects of example 1 with comparative example:
the ultra-white semi-tempered float glass 2 in which the plating was sequentially completed in step S1 by vacuum magnetron sputtering (i.e., the plated ultra-white semi-tempered float glass before lamination) was taken as a comparative example.
(1) The reflectance of the laminated concentrating mirror produced in example 1 and the coated ultrawhite semi-tempered float glass of comparative example were examined, respectively, as shown in fig. 3 and 4, respectively. As can be seen from the figure, the reflectance of the coated ultrawhite semi-tempered float glass (comparative example) before lamination was 95% to 96.5%, and the reflectance of the laminated cemented sandwich concentrating mirror (example 1) after lamination was 95% to 97%. The vacuum lamination process of the bonding material of the bonding layer has a vacuum heat treatment function on all coatings on the inner surface of the ultra-white semi-tempered float glass 2, so that the microstructure is changed from microcosmic, the dissolved moisture and gas are further eliminated, the reflectivity (about 0.5%) is improved, the microstructure of the coating is well protected, and the compactness and toughness of the coating are further improved.
(2) The frosting time of the interlayer condensing reflector prepared in the example 1 and the frosting time of the coated ultra-white semi-tempered float glass prepared in the comparative example are respectively detected, and compared with the comparative example, the frosting time of the example 1 is shortened by 40-50%.
(3) The aging test is carried out on the interlayer condensing reflector prepared in the embodiment 1, so that the service life of the interlayer condensing reflector is more than or equal to 30 years, and the industrial requirements are met.
The foregoing is merely a preferred embodiment of the application, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.
Claims (10)
1. The ultra-high reflection high weather-proof frost-proof sandwich reflector for the concentrating collector is characterized by comprising a frost-proof snow super-hydrophobic coating, ultra-white semi-tempered float glass, a first reflection-increasing layer, a reflecting layer, a reflection-increasing layer, a metal doped absorbing layer, a second reflection-increasing layer and a float full-tempered glass support, wherein the frost-proof snow super-hydrophobic coating is positioned on the upper surface of the ultra-white semi-tempered float glass, the first reflection-increasing layer is positioned on the lower surface of the ultra-white semi-tempered float glass, the reflecting layer is positioned on the lower surface of the first reflection-increasing layer, the reflection-increasing layer is positioned on the lower surface of the reflecting layer, the metal doped absorbing layer is positioned on the lower surface of the reflection-increasing layer, the float full-tempered glass support is bonded with the second reflection-increasing layer on the lower surface of the ultra-white semi-tempered float glass through a bonding layer by adopting a vacuum lamination process, so as to form the sandwich concentrating reflector, and the periphery of the sandwich concentrating reflector is subjected to edge sealing treatment by adopting a sealing agent.
2. The ultra-high reflection high weather-proof frost-proof sandwich reflector for a concentrating collector according to claim 1, wherein the frost-proof snow super-hydrophobic coating is an organosilicon-based nanomaterial coating, and the thickness of the frost-proof snow super-hydrophobic coating is 150-200 nm.
3. The ultra-high reflection high weather-proof frost-proof sandwich reflector for a concentrating collector according to claim 1, wherein the ultra-white semi-tempered float glass is low-iron ultra-white float glass, and the thickness of the ultra-white semi-tempered float glass is 1-1.8 mm.
4. The ultra-high reflection high weather resistant frostproof sandwich reflector for concentrating collector of claim 3 wherein said ultra-white semi-tempered float glass is planar in structure prior to lamination.
5. The ultra-high reflection high weather-proof frost-proof sandwich reflector for a concentrating collector of claim 1, wherein the first and second anti-reflection layers are both SiO 2 The thickness of the first anti-reflection layer is 50-100nm, and the thickness of the second anti-reflection layer is 100-200 nm.
6. The ultra-high reflection high weather-proof frost-proof sandwich reflector for a concentrating collector according to claim 1, wherein the reflecting layer is an Ag reflecting layer and has a thickness of 150-250 nm.
7. The ultra-high reflection high weather-proof frost-proof sandwich reflector for a concentrating collector according to claim 1, wherein the reflection enhancing layer is a Cu reflection enhancing layer and has a thickness of 100-150 nm.
8. The ultra-high reflection high weather-proof frost-proof sandwich reflector for a concentrating collector according to claim 1, wherein the metal doped absorption layer is a multi-layer metal doped absorption layer, and comprises a high-volume metal doped absorption layer, a medium-volume metal doped absorption layer and a low-volume metal doped absorption layer from the near to the far from the ultra-white semi-tempered float glass in sequence, wherein the metal doping proportion of the high-volume metal doped absorption layer is 55% -65%, and the thickness of the high-volume metal doped absorption layer is 100-220 nm; the metal doping proportion of the medium-volume metal doping absorption layer is 40% -55%, and the thickness of the medium-volume metal doping absorption layer is 100-220 nm; the metal doping proportion of the medium-volume metal doped absorption layer of the low-volume metal doped absorption layer is 30% -40%, and the thickness of the medium-volume metal doped absorption layer is 100-220 nm; the high-volume metal doped absorption layer, the medium-volume metal doped absorption layer and the low-volume metal doped absorption layer are SS+AlSiOx metal doped absorption layers or SS+AlN metal doped absorption layers.
9. The ultra-high reflection high weather-proof frost-proof sandwich reflector for a concentrating collector according to claim 1, wherein the adhesive layer is made of a light-transmitting EVA material or POE material.
10. The ultra-high reflection high weather-proof frost-proof sandwich reflector for a concentrating collector according to claim 1, wherein the thickness of the float fully tempered glass support is 3-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210354226.6A CN116928896A (en) | 2022-04-06 | 2022-04-06 | Ultra-high reflection high weather-proof frost-proof sandwich reflector for concentrating collector |
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| CN202210354226.6A CN116928896A (en) | 2022-04-06 | 2022-04-06 | Ultra-high reflection high weather-proof frost-proof sandwich reflector for concentrating collector |
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| CN116928896A true CN116928896A (en) | 2023-10-24 |
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| CN202210354226.6A Pending CN116928896A (en) | 2022-04-06 | 2022-04-06 | Ultra-high reflection high weather-proof frost-proof sandwich reflector for concentrating collector |
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| CN (1) | CN116928896A (en) |
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