风力发电机组液态油品热表面诱导燃烧特性  

Thermal surface induced combustion characteristics of typical liquid oil in wind turbine

作　　者：孙巍 尤飞 李平[3] SUN Wei;YOU Fei;LI Ping(Jiangsu Key Laboratory of Urban and Industrial Safety, College of Safely Science and Engineering, Nanjing Tech Universily, Jiangsu Nanjing 210009, China;Institute of Fire Science and Engineering, Nanjing Tech University, Jiangsu Nanjing 211800, China;Hohai University Wentian College, Anhui- Maanshan 243031, China)

机构地区：[1]南京工业大学安全科学与工程学院江苏省城市工业与安全重点实验室,江苏南京210009 [2]南京工业大学火灾与消防工程研究所,江苏南京211800 [3]河海大学文天学院,安徽马鞍山243031

出　　处：《消防科学与技术》2019年第2期157-161,共5页Fire Science and Technology

基　　金：国家自然科学基金项目(51376089);中国科学技术大学火灾科学国家重点实验室开放课题(HZ2011-KF11)

摘　　要：选取某风力发电机内齿轮箱油和变压器油典型液态油品(100.0 g),利用电控金属加热板对其在100℃起始加热温度下进行强制加热以实现热表面诱导燃烧,观察油品受热后蒸发汽化、沸腾冒泡、产烟和着火等演变性行为和特性,测定着火时间、火焰高度、油品液内和上方火焰中心轴温度分布。实验结果表明,单一液态样品油齿轮箱油和变压器油加热后着火前,会观察到明显的液态流动、沸腾冒泡、产烟等现象。变压器油着火时间短(477 s)、着火温度低(281.7℃),并且从第二层开始变压器油的最大升温速率大于齿轮箱油,证明了变压器油燃烧时火焰扩散传播较为活跃。For the typical liquid oil as gear oil or transformer oil (100.0 g), the healing was performed from 100℃ by an electrically con (rolled metal heating plate to get hot surface in duced combustion ,and the evaporation, gasification, boiling, evolutionary behavior and characteristics of smoke production and firewere observed after the oil was heated. The ignition lime, flame height, temperature distribution in lhe oil fluid and above the center axis of the flame were measured. The experimental results showed that before the fire of single liquid sample oil as gearbox oil or transformer oil after heating, obvious liquid flow, boiling, bubbling, smoke production and other phenomena would be observed. Transformer oil had the shorter ignition time (477 s) and the lower ignition temperature (281.7 ℃), and the maximum heating rate of transformer oil from the second floor was greater than that of the gearbox oil. Based on the above points. it was further proved that the spread of flame propagation was most active when the transformer oil was burned.

关 键 词：风力发电机 热表面诱导燃烧 齿轮箱油 变压器油 着火时间 火焰特性 温度分布 升温速率 

分 类 号：X932[环境科学与工程—安全科学] TM614[电气工程—电力系统及自动化]