A cable tunnel fireproof door sealing structure and a fireproof monitoring and extinguishing method

CN122407281APending Publication Date: 2026-07-17CHINA THREE GORGES RENEWABLES YANGJIANG POWER CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA THREE GORGES RENEWABLES YANGJIANG POWER CO LTD
Filing Date
2026-05-27
Publication Date
2026-07-17

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Abstract

本发明公开了一种电缆隧道防火门封堵结构及防火监测与灭火方法，包括防火门、区域控制单元、过线套组件与线缆支撑套件，防火门配备电动闭门器、永磁电磁吸合器及一体式多状态门磁开关，配合防火膨胀密封条实现可靠隔火密封；过线套组件填充防火层，实现电缆穿线位置严密封堵。区域控制单元搭载多组监测探头，实时采集隧道环境参数并双路上传至本地及地面监控站。本发明可实现火情前兆前置监测，异常时联动关闭防火门完成分区隔离，并依托门磁开关实现四门状态闭环监测与故障预警，同时通过内置喷吸气管对电缆定点靶向灭火。
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