煤矿带式输送机火灾光纤传感检测技术研究
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摘要
为监测煤矿长距离带式输送机长时间连续运行所造成的火灾隐患,提出一种基于后向拉曼散射及光时域反射原理的光纤温度传感方法,对带式输送机沿线进行火情监测与预警。理论分析该方法在带式输送机沿线的温度检测原理及沿线的定位原理,并融合使用累加平均以及小波降噪的数据处理方法,有效地改善了所采集信号的信噪比以及温度测量的实时性。结果表明:此光纤传感检测方法实现了沿线10 km范围内温度的分布式监测,温度响应时间小于3 s,定位精度不大于2 m,且可测温度最高可达190℃。因此,合理铺设光纤并使用光纤传感测量系统可以及时有效地提供煤矿带式输送机沿线的火情,为煤矿生产安全提供保障。
In order to monitor the potential fire hazard existing in long-term continuous operation of long-distance belt conveyors in coal mines,a distributed optical fiber temperature sensing method based on the temperature-sensitive characteristics of backward Raman scattering light and optical time domain reflection is proposed for fire monitoring and warning along the belt conveyor.The principle of temperature monitoring and positioning along the belt conveyor is theoretically analyzed,and a distributed fire warning scheme is designed.Besides,a data processing method by combining ensemble averaging and wavelet transform is utilized to improve the signal-noise ratio and realtime performance of the system simultaneously.The experimental results show that the optical fiber sensing detection method can achieve temperature monitoring within 10 km range response time is less than 3 s and the positioning accuracy is less than 2 m,and the measurement range can reach 190 ℃.Therefore,reasonable laying of optical fibers and using this sensor system can provide timely and effective fire situation along the belt conveyor in coal mine,and provide guarantee for the safety of coal mine production.
In order to monitor the potential fire hazard existing in long-term continuous operation of long-distance belt conveyors in coal mines,a distributed optical fiber temperature sensing method based on the temperature-sensitive characteristics of backward Raman scattering light and optical time domain reflection is proposed for fire monitoring and warning along the belt conveyor.The principle of temperature monitoring and positioning along the belt conveyor is theoretically analyzed,and a distributed fire warning scheme is designed.Besides,a data processing method by combining ensemble averaging and wavelet transform is utilized to improve the signal-noise ratio and realtime performance of the system simultaneously.The experimental results show that the optical fiber sensing detection method can achieve temperature monitoring within 10 km range response time is less than 3 s and the positioning accuracy is less than 2 m,and the measurement range can reach 190 ℃.Therefore,reasonable laying of optical fibers and using this sensor system can provide timely and effective fire situation along the belt conveyor in coal mine,and provide guarantee for the safety of coal mine production.
引文
[1]梁亮东.煤炭运输中长距离大运量带式输送机的探讨[J].机械管理开发,2017,32(8):39-40.LIANG Liangdong. Distance large capacity belt conveyor in coal transportation[J]. Mechanical Management and Development,2017,32(8):39-40.
[2]孙超,李瑗.煤炭生产中带式输送机部件配置研究[J].煤炭技术,2013,32(3):31-33.SUN Chao,LI Yuan.Research of belt conveyor components configuration in mine production[J]. Coal Technology,2013,32(3):31-33.
[3]马静雅,岑强,李军伟.矿用带式输送机巡检机器人系统设计[J].煤炭技术,2016,35(1):249-251.MA Jingya,CEN Qiang,LI Junwei. Design of mine-used belt conveyor patrol robot system[J]. Coal Technology,2016,35(1):249-251.
[4]肖华明,孙士娇,曹连民.矿用带式输送机新技术应用前景分析[J].工矿自动化,2018,44(4):34-39.XIAO Huaming,SUN Shijiao,CAO Lianmin. Application prospect analysis of new technologies of mine-used belt conveyor[J]. Industry and Mine Automation,2018,44(4):34-39.
[5]封士彩,黄民.矿用带式输送机火灾监控技术的研究[J].煤炭科学技术,2002,30(2):54-57.FENG Shicai,HUANG Min. Research on fire disaster monitoring and control technology for mine belt conveyor[J].Coal Science and Technology,2002,30(2):54-57.
[6]李士戎,邓军,陈晓坤,等.煤矿井下输送带摩擦起火危险点分布规律[J].西安科技大学学报,2011,31(6):679-683.LI Shirong,DENG Jun,CHEN Xiaokun,et al. Distribution law of potential fire point caused by friction of conveyor belt in underground coal mines[J].Journal of Xi’an University of Science and Technology,2011,31(6):679-683.
[7]陈晨,齐庆杰.矿井火灾防治技术的发展现状及趋势[J].煤炭技术,2009,28(3):3-5.CHEN Chen,QI Qingjie. Mine fire prevention technology and development trend[J].Coal Technology,2009,28(3):3-5.
[8]李建良,姚建南.长距离带式输送机新型自动灭火装置[J].煤矿机械,2013,34(9):177-178.LI Jianliang,YAO Jiannan.New automatic fire extinguishing equipment for long belt conveyor[J]. Coal Mine Machinery,2013,34(9):177-178.
[9]徐劭懿,李梅,毛善君,等.带约束条件的煤矿火灾避灾路线算法研究[J].煤炭科学技术,2018,46(5):173-178,59.XU Shaoyi,LI Mei,MAO Shanjun,et al. Study on escape route algorithm with constraints during coal mine fire[J].Coal Science and Technology,2018,46(5):173-178,59.
[10]冯加宇,唐洪,贺涛,等.基于红外热成像的煤矿输送带火灾监测预警技术研究[J].煤炭技术,2016,35(12):280-282.FENG Jiayu,TANG Hong,HE Tao,et al. Infrared image monitoring and early-warning technology of coal mine conveyor belt fire[J].Coal Technology,2016,35(12):280-282.
[11]李军,张书林,龚仲强,等.基于多传感信息融合的输送带运输巷道火灾预警方法[J].煤矿机械,2017,38(10):132-135.LI Jun,ZHANG Shulin,GONG Zhongqiang,et al. Fire alarm method of conveying belt transportation roadway based on multisensor information fusion[J]. Coal Mine Machinery,2017,38(10):132-135.
[12]孙继平.煤矿监控新技术与新装备[J].工矿自动化,2015,41(1):1-5.SUN Jiping.New technologies and new equipments of coal mine monitoring[J].Industry and Mine Automation,2015,41(1):1-5.
[13]文虎,张铎,郑学召.煤矿平巷火灾数值模拟及其特征参数研究[J].煤炭科学技术,2017,45(4):62-67.WEN Hu,ZHANG Duo,ZHENG Xuezhao. Study on numerical simulation and feature parameters of fire disasters occurred in mine roadway[J]. Coal Science and Technology,2017,45(4):62-67.
[14] HUANG Min.Study on system for monitoring mine belt conveyor fire[J].Applied Mechanics and Materials,2002(3):734-739.
[15]佟敬阔,靳宝全,王东,等.面向管道安全监测的R-OTDR分布式光纤测温系统[J].传感技术学报,2018,31(1):158-162.TONG Jingkuo,JIN Baoquan,WANG Dong,et al.Distributed optical fiber temperature measurement system for pipeline safety monitoring based on R-OTDR[J]. Chinese Journal of Sensors and Actuators,2018,31(1):158-162.
[16]单亚锋,马艳娟,付华,等.分布式光纤测温系统在煤矿火灾监测中的应用[J].传感技术学报,2014,27(5):704-708.SHAN Yafeng,MA Yanjuan,FU Hua,et al.Application of distributed optical fiber temperature measurement system in coal mine fire monitoring system[J]. Journal of Transduction Technology,2014,27(5):704-708.
[17]程根银,曹健,唐晶晶,等.分布式光纤传感系统在煤矿采空区火灾监测中的应用[J].华北科技学院学报,2017,14(2):1-6.CHENG Genyin,CAO Jian,TANG Jingjing,et al. Application of distributed optical fiber sensing system in fire monitoring in the goaf of coal mine[J]. Journal of North China Institute of Science and Technology,2017,14(2):1-6.
[18]李云鹏,张宏伟,韩军,等.基于分布式光纤传感技术的卸压钻孔时间效应研究[J].煤炭学报,2017,42(11):2834-2841.LI Yunpeng,ZHANG Hongwei,HAN Jun,et al. Time effect of borehole pressure relief based on distributed optical fiber sensing technology[J]. Journal of China Coal Society,2017,42(11):2834-2841.
[19]许国胜,关金锋,李回贵,等.煤矿岩层移动建模方法及验证[J].煤炭科学技术,2018,46(5):8-13.XU Guosheng,GUAN Jinfeng,LI Huigui,et al. Modeling methods and verification of rock strata movement in coal mine[J]. Coal Science and Technology,2018,46(5):8-13.
[20]韩永温,郝文杰,张林行,等.基于拉曼散射原理的分布式光纤测温系统研究[J].半导体光电,2013,34(2):342-345.HAN Yongwen,HAO Wenjie,ZHANG Linxing,et al.Research of distributed optical fiber temperature measurement system based on raman scattering principle[J]. Semiconductor Optoelectronics,2013,34(2):342-345.
[2]孙超,李瑗.煤炭生产中带式输送机部件配置研究[J].煤炭技术,2013,32(3):31-33.SUN Chao,LI Yuan.Research of belt conveyor components configuration in mine production[J]. Coal Technology,2013,32(3):31-33.
[3]马静雅,岑强,李军伟.矿用带式输送机巡检机器人系统设计[J].煤炭技术,2016,35(1):249-251.MA Jingya,CEN Qiang,LI Junwei. Design of mine-used belt conveyor patrol robot system[J]. Coal Technology,2016,35(1):249-251.
[4]肖华明,孙士娇,曹连民.矿用带式输送机新技术应用前景分析[J].工矿自动化,2018,44(4):34-39.XIAO Huaming,SUN Shijiao,CAO Lianmin. Application prospect analysis of new technologies of mine-used belt conveyor[J]. Industry and Mine Automation,2018,44(4):34-39.
[5]封士彩,黄民.矿用带式输送机火灾监控技术的研究[J].煤炭科学技术,2002,30(2):54-57.FENG Shicai,HUANG Min. Research on fire disaster monitoring and control technology for mine belt conveyor[J].Coal Science and Technology,2002,30(2):54-57.
[6]李士戎,邓军,陈晓坤,等.煤矿井下输送带摩擦起火危险点分布规律[J].西安科技大学学报,2011,31(6):679-683.LI Shirong,DENG Jun,CHEN Xiaokun,et al. Distribution law of potential fire point caused by friction of conveyor belt in underground coal mines[J].Journal of Xi’an University of Science and Technology,2011,31(6):679-683.
[7]陈晨,齐庆杰.矿井火灾防治技术的发展现状及趋势[J].煤炭技术,2009,28(3):3-5.CHEN Chen,QI Qingjie. Mine fire prevention technology and development trend[J].Coal Technology,2009,28(3):3-5.
[8]李建良,姚建南.长距离带式输送机新型自动灭火装置[J].煤矿机械,2013,34(9):177-178.LI Jianliang,YAO Jiannan.New automatic fire extinguishing equipment for long belt conveyor[J]. Coal Mine Machinery,2013,34(9):177-178.
[9]徐劭懿,李梅,毛善君,等.带约束条件的煤矿火灾避灾路线算法研究[J].煤炭科学技术,2018,46(5):173-178,59.XU Shaoyi,LI Mei,MAO Shanjun,et al. Study on escape route algorithm with constraints during coal mine fire[J].Coal Science and Technology,2018,46(5):173-178,59.
[10]冯加宇,唐洪,贺涛,等.基于红外热成像的煤矿输送带火灾监测预警技术研究[J].煤炭技术,2016,35(12):280-282.FENG Jiayu,TANG Hong,HE Tao,et al. Infrared image monitoring and early-warning technology of coal mine conveyor belt fire[J].Coal Technology,2016,35(12):280-282.
[11]李军,张书林,龚仲强,等.基于多传感信息融合的输送带运输巷道火灾预警方法[J].煤矿机械,2017,38(10):132-135.LI Jun,ZHANG Shulin,GONG Zhongqiang,et al. Fire alarm method of conveying belt transportation roadway based on multisensor information fusion[J]. Coal Mine Machinery,2017,38(10):132-135.
[12]孙继平.煤矿监控新技术与新装备[J].工矿自动化,2015,41(1):1-5.SUN Jiping.New technologies and new equipments of coal mine monitoring[J].Industry and Mine Automation,2015,41(1):1-5.
[13]文虎,张铎,郑学召.煤矿平巷火灾数值模拟及其特征参数研究[J].煤炭科学技术,2017,45(4):62-67.WEN Hu,ZHANG Duo,ZHENG Xuezhao. Study on numerical simulation and feature parameters of fire disasters occurred in mine roadway[J]. Coal Science and Technology,2017,45(4):62-67.
[14] HUANG Min.Study on system for monitoring mine belt conveyor fire[J].Applied Mechanics and Materials,2002(3):734-739.
[15]佟敬阔,靳宝全,王东,等.面向管道安全监测的R-OTDR分布式光纤测温系统[J].传感技术学报,2018,31(1):158-162.TONG Jingkuo,JIN Baoquan,WANG Dong,et al.Distributed optical fiber temperature measurement system for pipeline safety monitoring based on R-OTDR[J]. Chinese Journal of Sensors and Actuators,2018,31(1):158-162.
[16]单亚锋,马艳娟,付华,等.分布式光纤测温系统在煤矿火灾监测中的应用[J].传感技术学报,2014,27(5):704-708.SHAN Yafeng,MA Yanjuan,FU Hua,et al.Application of distributed optical fiber temperature measurement system in coal mine fire monitoring system[J]. Journal of Transduction Technology,2014,27(5):704-708.
[17]程根银,曹健,唐晶晶,等.分布式光纤传感系统在煤矿采空区火灾监测中的应用[J].华北科技学院学报,2017,14(2):1-6.CHENG Genyin,CAO Jian,TANG Jingjing,et al. Application of distributed optical fiber sensing system in fire monitoring in the goaf of coal mine[J]. Journal of North China Institute of Science and Technology,2017,14(2):1-6.
[18]李云鹏,张宏伟,韩军,等.基于分布式光纤传感技术的卸压钻孔时间效应研究[J].煤炭学报,2017,42(11):2834-2841.LI Yunpeng,ZHANG Hongwei,HAN Jun,et al. Time effect of borehole pressure relief based on distributed optical fiber sensing technology[J]. Journal of China Coal Society,2017,42(11):2834-2841.
[19]许国胜,关金锋,李回贵,等.煤矿岩层移动建模方法及验证[J].煤炭科学技术,2018,46(5):8-13.XU Guosheng,GUAN Jinfeng,LI Huigui,et al. Modeling methods and verification of rock strata movement in coal mine[J]. Coal Science and Technology,2018,46(5):8-13.
[20]韩永温,郝文杰,张林行,等.基于拉曼散射原理的分布式光纤测温系统研究[J].半导体光电,2013,34(2):342-345.HAN Yongwen,HAO Wenjie,ZHANG Linxing,et al.Research of distributed optical fiber temperature measurement system based on raman scattering principle[J]. Semiconductor Optoelectronics,2013,34(2):342-345.