Photovoltaic panel manufacturing is a part of the solar panels batteries manufacturing industry, which is classified as the manufacturing of photovoltaic equipment and components in the National Economy industry classification (c3825 subcategory). In recent years, the development trend of photovoltaic industry is good. With the increasing installed capacity of photovoltaic module, the output of photovoltaic module is also increasing. In 2022, the country's photovoltaic module output has reached 288.7GW, with a year-on-year increase of 58.8 percent. In the future, PV module production is expected to continue to grow as major manufacturers continue to expand capacity, reaching 433.1GW by 2023. Thus, the photovoltaic panel manufacturing industry has a very broad prospect, strong market demand, and great potential for development in the future.

With the vigorous development of the photovoltaic panel industry, we can see the flow switch figure in all kinds of production equipment. The application of flow switch in the photovoltaic industry can not only effectively ensure the quality and efficiency of production, but also save energy and material costs, reduce maintenance costs, etc. So what links and equipment do flow switches play a role in the manufacturing of photovoltaic panels? The following will introduce you:

Water cooling when cutting silicon wafers

Cutting silicon wafer is one of the important processes of photovoltaic panel manufacturing. In order to avoid burning silicon wafer and drill bit at high temperature, water is needed for cooling. Flow switch can be used to monitor the flow of cooling water to ensure the stability of water flow, and analyze the relationship between water flow change and cutting effect, processing speed, etc., to provide data support for the production process.

Clean the surface of silicon wafer

When making solar cells, the surface of the silicon wafer needs to be cleaned to remove dust, oil and other impurities. It also needs to be rinsed with water. Flow switch can be used to monitor the flow of cleaning water to ensure the stability of water flow, so as to ensure the consistency of cleaning effect and improve production efficiency.

Film coating (e.g., anti-reflective film)

Photovoltaic panels are often coated with thin films to improve their light absorption and anti-reflection properties. Thin film coating involves wetting the surface of the photovoltaic panel with water and then coating the surface with various chemicals. The flow switch monitors the flow of water in real time to ensure uniform coating. In addition, the flow switch enables precise control by turning off the water source at specific intervals to ensure coating quality consistency.

glue

In the process of assembling solar cells, glue is used to bind the silicon wafers to components such as glass and backboard. This requires the use of water cooling dry silicon wafers or temperature control. Flow switches can be used to monitor the flow of cooling water and heating water, ensuring stable water flow and temperature control, improving production efficiency.