Float glass production uses quartz sand, soda ash, feldspar and other raw materials, and is completed through core processes such as high-temperature melting, tin bath forming, annealing and cooling

Fuel substitution generates hydrogen: The float glass industry is currently promoting low-carbon emissions reduction, and some manufacturers are using hydrogen to replace fossil fuels such as natural gas for melting furnace heating, achieving a significant reduction in carbon emissions. The Pilkington factory in the UK has completed the world's first 100% hydrogen float glass production test, proving the feasibility and environmental value of hydrogen in float glass production. Hydrogen as a fuel needs to be strictly controlled in concentration to ensure combustion efficiency and safety;

Process by-product hydrogen gas: The tin solution in the tin bath reacts with trace amounts of moisture and reducing agents in the raw materials, generating trace amounts of hydrogen gas; At the same time, in the protective gas of the tin bath (a mixture of nitrogen and hydrogen), hydrogen is used as the core component to prevent oxidation of the tin solution and avoid surface defects on the glass, and its concentration ratio needs to be precisely controlled;

Risk of reaction between hydrogen and other gases: Free oxygen entering the tin bath is prone to react with hydrogen to generate water vapor, which in turn reacts with silicon carbide to produce silicon dioxide, affecting the stability of the tin bath conditions and the quality of glass products. Therefore, concentration monitoring is necessary to avoid such reaction risks.