CN113354278A - Formula and preparation method of high-performance ultrathin high-transmittance photovoltaic glass - Google Patents
Formula and preparation method of high-performance ultrathin high-transmittance photovoltaic glass Download PDFInfo
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- CN113354278A CN113354278A CN202110754622.3A CN202110754622A CN113354278A CN 113354278 A CN113354278 A CN 113354278A CN 202110754622 A CN202110754622 A CN 202110754622A CN 113354278 A CN113354278 A CN 113354278A
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- glass
- photovoltaic glass
- transmittance
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- photovoltaic
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B13/00—Rolling molten glass, i.e. where the molten glass is shaped by rolling
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/004—Refining agents
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention relates to a formula of high-performance ultrathin high-transmittance photovoltaic glass and a preparation method thereof2、Na2O、CaO、MgO、AL2O3、SB2O3Composition is carried out; the components and weight percentage of the batch material comprise 68-74% of SiO212.1-15.6% of Na2O, CaO 7.6-11.1%, MgO 2.5-4.5%, and AL 0.7-1.9%2O30.1-0.25% of SB2O3The proposal has the advantages of stable performance, easy bubble discharge, high transmittance, high strength and low cost, and solves the problems of high bubble generation and the like in the prior glass processing process,Thickness difference and other various glass defects.
Description
Technical Field
The invention relates to the technical field of glass manufacturing, in particular to a formula and a preparation method of high-performance ultrathin high-transmittance photovoltaic glass.
Background
The photovoltaic glass is mainly used for packaging solar photovoltaic power generation and solar thermal components, and serves as one of clean, efficient and never-failing green energy technologies in the future, in recent years, the application of the photovoltaic technology is more and more extensive, the solar photovoltaic industry becomes the field of the energy market with the fastest growing speed, in 2013, the cumulative installed capacity of the national photovoltaic power generation is only 19.42GW, the generated energy is only 90 hundred million kilowatts hour, the installed capacity is increased to 204.3GW in 2019, and the photovoltaic generated energy reaches 2243 million kilowatts hour, so that the photovoltaic industry is increased explosively.
With the technical progress and the market requirements, the mass production of the dual-glass assembly is realized, the photovoltaic glass develops to large scale and thin type, each photovoltaic manufacturer occupies market share, the enterprise competitiveness is improved, the dual-glass assembly gradually develops to oxy-fuel combustion and a large-scale kiln, the existing preparation technology of the photovoltaic glass is not enough to meet the requirements of large scale and thin type, and various glass defects such as high bubble generation and thickness difference are easy to occur, so that a technical scheme capable of solving the problem that the glass defects such as high bubble generation and thickness difference are easy to occur after thin type and large scale generation is urgently needed in the field, and the dual-glass assembly is suitable for various photovoltaic glass kilns, in particular for preparing the glass of the large-scale oxy-fuel combustion photovoltaic glass kiln.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a formula and a preparation method of high-performance ultrathin high-transmittance photovoltaic glass, which has the advantages of stable performance, easiness in bubble discharge, high transmittance, high strength and low cost, and solves the problems of various glass defects such as high bubble generation, thickness difference and the like easily occurring in the existing glass processing process.
In order to achieve the purpose, the invention provides the following technical scheme: the high-performance ultrathin high-transmittance photovoltaic glass formula is characterized by comprising cullet and a batch, wherein the batch is prepared from SiO2、Na2O、CaO、MgO、AL2O3、SB2O3Composition is carried out;
the components and weight percentage of the batch material comprise 68-74% of SiO212.1-15.6% of Na2O, CaO 7.6-11.1%, MgO 2.5-4.5%, and AL 0.7-1.9%2O30.1-0.25% of SB2O3。
Furthermore, the components and the weight percentage of the batch mixtureComprises 68-69% of SiO213.9-15.6% of Na2O, CaO 9.6-11.1%, MgO 3.6-4.5%, and AL 1.4-1.9%2O30.24-0.25% of SB2O3。
Furthermore, 18 to 29 percent or 41 to 45 percent of cullet by weight is used as the glass raw material.
Further, a preparation method of the formula of the high-performance ultrathin high-transmittance photovoltaic glass is characterized by comprising the following steps of: mixing 71-82 wt% of the batch materials uniformly with 18-29 wt% of the cullet or 55-59 wt% of the batch materials uniformly with 41-45 wt% of the cullet, adding the mixture and 41-45 wt% of the cullet into a kiln for high-temperature melting at 1550-.
And further, carrying out calendaring forming and annealing treatment on the glass liquid meeting the forming temperature to obtain the photovoltaic glass.
Furthermore, through the measurement of the glass visible light transmittance, the sunlight direct transmittance, the solar total transmittance and the ultraviolet transmittance of the anti-reflection film glass for the solar photovoltaic module JC T2170-2013, the transmittance (calculated by 3.2 mm) of the photovoltaic glass is more than or equal to 91.8 percent, and the transmittance (calculated by 2.0 mm) of the photovoltaic glass is more than or equal to 92 percent.
Further, the kiln is a 750t/d, 800t/d and 850t/d large-scale total oxygen combustion photovoltaic glass kiln.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
1. the photovoltaic glass prepared by the formula can solve the problem of multiple defects of glass after thinning and large-scale production, is suitable for various photovoltaic glass kilns, is particularly suitable for ultrathin production of large-scale total oxygen combustion photovoltaic glass kilns, and has the advantages of stable performance, easiness in bubble discharge, high transmittance, high strength, low cost and strong market competitiveness.
2. The formula has the following beneficial effects that the components and the weight percentage are selected as follows:
SiO2: the main components of the glass form a glass skeleton, so that the glass has certain excellent properties such as thermal stability, chemical stability, softening temperature, mechanical strength and the like, and has the defects ofThe melting point is high, the viscosity of the molten liquid is high, the melting is difficult, the heat consumption is high, and a higher melting temperature is needed when the content is high, so 68-69% is selected;
Na2o: as a fluxing agent, the viscosity of the glass liquid can be reduced, the melting and the clarification of the glass liquid are promoted, the crystallization tendency of the glass can be greatly reduced, the chemical stability and the mechanical strength of the glass can be reduced, the thermal expansion coefficient of the glass can be increased, the thermal stability and the chemical stability of the glass can be reduced, and the introduction amount is controlled, so that the selection range is 13.9-15.6%.
CaO: the glass acts as a stabilizer, the chemical stability and the mechanical strength of the glass can be increased, the viscosity of the glass can be reduced at high temperature, the melting and the clarification of the glass are promoted, the viscosity of glass liquid is increased when the temperature is reduced, the forming speed is influenced, the crystallization tendency of the glass is increased when the content is increased, the thermal stability of the glass is reduced, the annealing temperature is increased, and the glass is embrittled, so that 9.6-11.1 percent is selected.
MgO: the effect is similar to that of CaO, but the defect that CaO increases the devitrification tendency of the glass is avoided, the hardening speed of the glass can be slowed, and the forming performance of the glass is improved, so that an appropriate amount of MgO can be used for replacing CaO, but excessive amount of MgO can generate pyroxene crystallization, the annealing temperature is increased, and the stability of the glass is reduced, so that the selection range is 3.6-4.5%.
AL2O3: the glass performance can be improved, the glass structure tends to be compact, the crystallization tendency of the glass can be reduced, the chemical stability, the thermal stability, the mechanical strength, the hardness and the refractive index of the glass are improved, the influence on a ball drop test of the photovoltaic glass is direct, and the corrosion of the glass to a refractory material can be reduced, so that the selection is 1.4-1.9%.
SB2O3: the clarifying agent is selected from 0.24-0.25%.
The glass cullet with the weight portion of 18-29% or 41-45% is used as the glass raw material, so that the melting temperature can be effectively reduced, the melting process can be accelerated, the energy consumption can be saved, the consumption of the raw material can be reduced, and the cost can be saved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
The invention has good effect by being used in production lines of 750t/d, 800t/d and 850t/d,
the invention relates to a formula and a preparation method of high-performance photovoltaic ultrathin high-transparency glass. The components by weight percentage mainly comprise: 68-69% SiO213.9-15.6% of Na2O, CaO 9.6-11.1%, MgO 3.6-4.5%, and AL 1.4-1.9%2O30.24-0.25% of SB2O3。
The cullet with the weight portion of 18-29% or 41-45% is adopted as the glass raw material.
Wherein, the upper limit value, the middle limit value and the lower limit value of the batch components can be respectively used, when the upper limit value is used, the cost is overhigh, the unit consumption is high, the melting temperature is higher, and when the lower limit value is used, the glass performance is reduced. Good glass performance results can be obtained when using a median value.
Wherein, the batch materials are uniformly mixed and are added into a kiln furnace for high-temperature melting with the melting temperature of 1550-.
And carrying out calendaring forming and annealing treatment on the glass liquid meeting the forming temperature to obtain the photovoltaic glass.
Preferably, 25 weight percent of cullet and 75 weight percent of batch are selected, wherein each component and weight percent of the batch comprise 69 percent of SiO214% of Na2O, 10.95% CaO, 4% MgO, 1.8% AL2O30.25% of SB2O3And the batch materials are uniformly mixed and are added into a kiln together with cullet for high-temperature melting, the melting temperature is 1600 ℃, the mixture is delivered to a cooling part after being melted through clarification and homogenization, the clarification and homogenization temperature is 1450 ℃, and repeated data verification and material object verification are carried out for multiple timesThe result feedbacks, the transmittance of the photovoltaic glass obtained by glass processing of the glass formula is more than or equal to 93 percent (calculated by 3.2 mm) and more than or equal to 94 percent (calculated by 2.0 mm), and the effect is the best.
Through long-time production and practice verification of large-scale oxy-fuel combustion photovoltaic glass kilns at 750T/d, 800T/d and 850T/d, the invention meets JC T2170-.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The high-performance ultrathin high-transmittance photovoltaic glass formula is characterized by comprising cullet and a batch, wherein the batch is prepared from SiO2、Na2O、CaO、MgO、AL2O3、SB2O3And (4) forming.
2. The formulation of claim 1, wherein the high performance ultra-thin high transmission photovoltaic glass comprises: the components and weight percentage of the batch material comprise 68-69% of SiO2，13.9-15.6% of Na2O, CaO 9.6-11.1%, MgO 3.6-4.5%, and AL 1.4-1.9%2O30.24-0.25% of SB2O3。
3. The formulation of claim 1, wherein the high performance ultra-thin high transmission photovoltaic glass comprises: the cullet with the weight portion of 18-29% or 41-45% is adopted as the glass raw material.
4. A method of preparing a high performance ultra-thin high transmission photovoltaic glass formulation as claimed in any one of claims 1 to 3, wherein: mixing 71-82 wt% of the batch materials uniformly with 18-29 wt% of the cullet or 55-59 wt% of the batch materials uniformly with 41-45 wt% of the cullet, adding the mixture and 41-45 wt% of the cullet into a kiln for high-temperature melting at 1550-.
5. The method of claim 4, wherein the step of preparing the high performance ultra-thin high transmission photovoltaic glass formulation comprises: and carrying out calendaring forming and annealing treatment on the glass liquid meeting the forming temperature to obtain the photovoltaic glass.
6. The method of claim 4 or 5, wherein the step of preparing the high performance ultra-thin high transmission photovoltaic glass formulation comprises: by measuring the visible light transmittance, the direct sunlight transmittance, the total solar energy transmittance and the ultraviolet transmittance of the anti-reflection film glass for the JC T2170 and 2013 solar photovoltaic module, the transmittance (calculated by 3.2 mm) of the photovoltaic glass is more than or equal to 91.8 percent, and (calculated by 2.0 mm) is more than or equal to 92 percent.
7. The method of claim 4, wherein the step of preparing the high performance ultra-thin high transmission photovoltaic glass formulation comprises: the kiln is a 750t/d, 800t/d and 850t/d large-scale total oxygen combustion photovoltaic glass kiln.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110754622.3A CN113354278A (en) | 2021-07-05 | 2021-07-05 | Formula and preparation method of high-performance ultrathin high-transmittance photovoltaic glass |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110754622.3A CN113354278A (en) | 2021-07-05 | 2021-07-05 | Formula and preparation method of high-performance ultrathin high-transmittance photovoltaic glass |
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| CN202110754622.3A Pending CN113354278A (en) | 2021-07-05 | 2021-07-05 | Formula and preparation method of high-performance ultrathin high-transmittance photovoltaic glass |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617034A (en) * | 2012-03-31 | 2012-08-01 | 上海吉驰玻璃科技有限公司 | Formula and application of photovoltaic glass |
| CN103482869A (en) * | 2013-08-26 | 2014-01-01 | 吴江光华玻璃厂 | Porcelain white glass formula |
| CN107043211A (en) * | 2017-01-20 | 2017-08-15 | 合肥彩虹新能源有限公司 | A kind of all-oxygen combustion kiln photovoltaic glass formula |
| CN107601861A (en) * | 2017-10-10 | 2018-01-19 | 彩虹（合肥）光伏有限公司 | A kind of high transmittance photovoltaic rolled glass formula |
-
2021
- 2021-07-05 CN CN202110754622.3A patent/CN113354278A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617034A (en) * | 2012-03-31 | 2012-08-01 | 上海吉驰玻璃科技有限公司 | Formula and application of photovoltaic glass |
| CN103482869A (en) * | 2013-08-26 | 2014-01-01 | 吴江光华玻璃厂 | Porcelain white glass formula |
| CN107043211A (en) * | 2017-01-20 | 2017-08-15 | 合肥彩虹新能源有限公司 | A kind of all-oxygen combustion kiln photovoltaic glass formula |
| CN107601861A (en) * | 2017-10-10 | 2018-01-19 | 彩虹（合肥）光伏有限公司 | A kind of high transmittance photovoltaic rolled glass formula |
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Application publication date: 20210907 |
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