Haiyouwei Technology Co., Ltd. has filed a patent application for a photovoltaic module recycling method, aiming to expedite the recycling process of solar panels. According to information from the National Intellectual Property Administration, the patent, titled “Method for Recycling Photovoltaic Modules”, has been assigned the publication number CN119972713A, with the application date set for December 2023.
The patent abstract indicates that this invention outlines a method for recycling photovoltaic modules, which consist of an organic encapsulation layer, glass, a frame, and a junction box. The recycling process includes the following steps:
- Identifying the frame size and locating the frame;
- Locating the junction box;
- Dismantling the junction box to form a first disassembled component, which includes the frame, glass, and organic encapsulation layer;
- Dismantling the frame to create a second disassembled component that consists of the glass and organic encapsulation layer;
- Using an obtuse angle milling cutter to remove the glass, resulting in the organic encapsulation layer;
- Performing oxygen-free low-temperature pyrolysis on the organic encapsulation layer to obtain gaseous and solid components;
- Condensing or conducting heat exchange to cool the gaseous components, yielding liquid components;
- Conducting heat exchange cooling of the solid components;
- Collecting the gaseous, liquid, and solid components separately based on their properties.
This method is designed to enhance the speed of photovoltaic module recycling, improve the recovery rates of the various components, and achieve zero emissions, showcasing significant potential for broader application.
According to data from Tianyancha, Shanghai Haiyouwei Technology Co., Ltd. was established in 2005 and is based in Shanghai. The company primarily engages in professional technical services and has a registered capital of 84.020211 million RMB. Analysis reveals that the company has invested in 15 enterprises and participated in one bidding project. Additionally, it holds 92 trademarks and 294 patents, along with five administrative licenses.
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