Ultrathin photovoltaic rolled glass

A photovoltaic calendering and glass technology, which is applied in the field of ultra-thin photovoltaic calendering glass, can solve the problems of not being able to meet the calendering process forming requirements, not meeting the industrial production requirements, and increasing production costs, so as to improve the clarification and decolorization effect and increase the refractive index of the glass , The effect of saving production costs

Inactive Publication Date: 2017-09-15
CNBM YIXING NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the photovoltaic glass industry generally uses Na 2 O-CaO-SiO 2 Photovoltaic glass is prepared by system. The thickness of the prepared solar photovoltaic glass is basically 3-3.2mm, which cannot m

Method used

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  • Ultrathin photovoltaic rolled glass

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Effect test

Embodiment 1

[0010] The invention provides an ultra-thin photovoltaic rolling glass, the glass contains the following oxides by mass percentage: 73.18% SiO 2 , 8.06% CaO, 3.51% MgO, 1.35% Al 2 o 3 , 13.2% Na 2 O, 0.6% B 2 o 3 , 0.05% Sb 2 o 3 , 0.05% CeO 2 with 0.01% Fe 2 o 3 ;

[0011] Raw material batching according to the oxide content can be carried out by conventional means, such as using silica sand, limestone, dolomite, aluminum hydroxide, soda ash, boric acid, Glauber's salt, sodium nitrate, antimony powder and cullet, etc.; the above raw material batching After mixing, the oxy-fuel combustion process is used to fully melt at 1585-1650°C and clarified at 1420-1430°C; the clarified glass liquid is calendered through a calendering process at a calendering temperature of 1195°C; and then annealed at a temperature of 70-1430°C. 560° C., annealing time 10-14 minutes, and a photovoltaic rolling glass with a thickness of 2.0 mm is prepared.

[0012] After testing, the light tra...

Embodiment 2

[0014] The invention provides an ultra-thin photovoltaic rolling glass, the glass contains the following oxides by mass percentage: 72.08% SiO 2 , 8.0% CaO, 3.92% MgO, 1.65% Al 2 o 3 , 13.35% Na 2 O, 0.85% B 2 o 3 , 0.1% Sb 2 o 3 , 0.05% CeO 2 with 0.01% Fe 2 o 3 ;

[0015] Raw material batching according to the oxide content can be carried out by conventional means, such as using silica sand, limestone, dolomite, aluminum hydroxide, soda ash, boric acid, Glauber's salt, sodium nitrate, antimony powder and cullet, etc.; the above raw material batching After mixing, the oxy-fuel combustion process is used to fully melt at 1585-1650°C and clarified at 1420-1430°C; the clarified glass liquid is calendered through a calendering process at a calendering temperature of 1195°C; and then annealed at a temperature of 70-1430°C. 560°C, annealing time of 10-14min, and a photovoltaic rolling glass with a thickness of 1.9mm was prepared.

[0016] After testing, the light transmi...

Embodiment 3

[0018] The invention provides an ultra-thin photovoltaic rolling glass, the glass contains the following oxides by mass percentage: 71.85% SiO 2 , 8.35% CaO, 3.5% MgO, 2.16% Al 2 o 3 , 13.2% Na 2 O, 0.71% B 2 o 3 , 0.15% Sb 2 o 3 , 0.08% CeO 2 with 0.012% Fe 2 o 3 ;

[0019] Raw material batching according to the oxide content can be carried out by conventional means, such as using silica sand, limestone, dolomite, aluminum hydroxide, soda ash, boric acid, Glauber's salt, sodium nitrate, antimony powder and cullet, etc.; the above raw material batching After mixing, the oxy-fuel combustion process is used to fully melt at 1585-1650°C and clarified at 1420-1430°C; the clarified glass liquid is calendered through a calendering process at a calendering temperature of 1195°C; and then annealed at a temperature of 70-1430°C. 560°C, annealing time of 10-14min, and a photovoltaic rolling glass with a thickness of 1.9mm was prepared.

[0020] After testing, the light transm...

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Abstract

The invention discloses ultrathin photovoltaic rolled glass. The ultrathin photovoltaic rolled glass comprises the following oxides by mass percentage: 71.0-73.18% of SiO2, 8.0-8.50% of CaO, 3.50-4.50% of MgO, 1.35-2.8% of Al2O3, 13.30-14.0% of Na2O, 0.6-1.0% of B2O3, 0.05-0.18% of Sb2O3, 0.05-0.1% of CeO2 and 0.01-0.012% of Fe2O3. According to the content of the oxides, the raw materials are compounded, and the photovoltaic rolled glass of which the thickness is less than 2.0 mm is prepared by founding, rolling forming and annealing processes; a glass component system is optimized, the B2O3 is introduced to reduce the glass expansion factor and increase the glass refractive index so as to play the fluxing action; the CeO2 and nitrate perform the combined action, so the clarification and decoloration effects are improved, the drawability of the glass is enhanced, and the plasticity of the photovoltaic rolled glass is improved; and the content of the Al2O3 and MgO is high, and the frit performance is improved. The final performance can satisfy the high-transparent and high-speed formability requirements of the industrial production of the photovoltaic glass of which the thickness is less than 2.0 mm, the production cost is saved, and the industrial production of the light and thin photovoltaic glass is realized.

Description

technical field [0001] The invention relates to the technical field of photovoltaic rolling glass, in particular to an ultra-thin photovoltaic rolling glass. Background technique [0002] Under the trend of increasing energy unaccountability and people's awareness of environmental protection, the global solar photovoltaic industry has developed rapidly. Photovoltaic power generation is the third largest energy utilization in my country's renewable energy after nuclear power and wind power. The embossed glass used in the photovoltaic crystal-silicon double-glass module is used as the cover glass, which has the characteristics of low iron and high transmittance. Photoelectric conversion efficiency of solar cells increases power generation. With the continuous development of the photovoltaic industry, higher requirements are placed on the production technology of photovoltaic glass. In the future, photovoltaic glass will develop in the direction of thinner and thinner, breakin...

Claims

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Application Information

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IPC IPC(8): C03C3/091C03C1/00
CPCC03C3/091C03C1/004
Inventor 李茂刚曾敏戴晓红吴亚
Owner CNBM YIXING NEW ENERGY CO LTD
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