金融界2025年6月2日消息，国家知识产权局信息显示，中海油江苏天然气有限责任公司取得一项名为“一种用于LNG低温储罐内罐纵缝焊接的双面焊接设备”的专利，授权公告号CN222919883U，申请日期为2024年06月。
专利摘要显示，本实用新型公开了一种用于LNG低温储罐内罐纵缝焊接的双面焊接设备，涉及LNG低温储罐内罐纵缝焊接技术领域，包括卷收辊，其通过轴承旋转安装在所述顶部升降支架下端的两侧，所述卷收辊设置有两个，该装置通过安装两个卷收辊可以卷收钢丝绳，使钢丝绳带动内侧支架和外侧支架进行纵向移动，进而保证装置对LNG低温储罐内罐纵缝进行稳定焊接，增强装置的实用性，安装高强度连接薄板可以使其配合调节板和调节丝杆可以拉住内侧支架和外侧支架，防止内侧支架和外侧支架横向晃动，保证内侧支架和外侧支架移动时的稳定，使装置无需配合龙门架使用，降低装置的整体体积，使装置更加便于运输、使用，同时降低装置的成本。
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