隧道机器人电缆火灾参数仿真与试验研究  

Simulation and experimental study on cable fire parameters of tunnel robot

作　　者：方书博[1] 罗浩[1] 洪骁 郑雷[1] FANG Shubo;LUO Hao;HONG Xiao;ZHENG Lei(State Grid Electric Power Research Institute Wuhan Nanrui Co.,Ltd.,Wuhan 430074,China)

机构地区：[1]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074

出　　处：《电气应用》2021年第9期41-49,共9页Electrotechnical Application

摘　　要：隧道电缆火灾参数获取对指导机器人灭火具有重要作用,基于FDS流体仿真软件建立了原尺寸不同火情功率等级电缆燃烧仿真模型,计算了不同工况电缆火灾发生后不同时间和空间的温度、烟气浓度和CO浓度分布,分析了不同层人工火源功率分别为150k W、 600kW和1.2MW时电缆层燃烧的火灾总功率分布,以及600k W、 1.2MW火源分别置于上、中、下三层时的火灾蔓延速度。建立了多传感器机器人电缆隧道火灾参数监测系统,监测了10kV三芯电缆模拟人工点火后电缆隧道内固定点温度和气体浓度分布。经分析表明,试验检测数据与仿真数据一致性较好。The acquisition of tunnel cable fire parameters plays an important role in guiding robot fire extinguishing.Based on FDS fluid simulation software,this paper establishes cable combustion simulation models of original tunnel size in different fire power levels,calculates temperature distribution,smoke concentration and CO concentration in different time and space after cable fire under different working conditions,analyses the total cable fire power distribution when artificial fire power are 150 kW,600 kW and 1.2 MW in different layers and the fire spreading speed when artificial fire power are 600 kW,1.2 MW in different layers.A multisensor robot cable tunnel fire parameter monitoring system was established to monitor the temperature and gas concentration distribution at the fixed point of 10 kV three-core cable after artificial ignition.The analysis table shows that the test data are in good agreement with the simulation data.

关 键 词：电缆火灾参数 火情功率等级 人工火源 火灾总功率 火灾参数监测 气体浓度 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置] TM75[自动化与计算机技术—控制科学与工程]