基于火焰过程信息的沥青搅拌站燃烧状态监测  

Burning state monitoring of asphalt mixing plant based on process information of flame

作　　者：房怀英[1] 杨建红[1] 

机构地区：[1]华侨大学机电及自动化学院,福建厦门361021

出　　处：《长安大学学报（自然科学版）》2015年第1期154-158,共5页Journal of Chang’an University(Natural Science Edition)

基　　金：福建省产学合作重大项目(2012H6014)

摘　　要：为了在线监测热再生沥青搅拌站干燥、加热状态,首先通过高温CCD图像探测和火焰检测器搭建了燃烧器燃烧信息检测系统,对所提取的火焰图像和辐射信息进行去噪处理,在线提取加热干燥过程中火焰图像和辐射特征信息;分别改变燃油温度、雾化气压、燃油量等燃烧参数,对燃烧火焰的辐射和图像过程信息进行提取和试验研究,分析不同燃烧阶段火焰辐射状态,通过图像处理算法分别提取火焰图像亮度均值和均值标准差。研究结果表明:风/油比、燃油温度、雾化压力对燃烧过程火焰图像和辐射特征有较大的影响,且影响形式不同;单一的燃烧火焰辐射特征信息无法充分表征燃烧状态,通过多信息融合,燃烧火焰亮度均值和标准差等过程信息能准确表征燃烧器燃烧状态;同时在线提取燃烧火焰辐射和图像信息,能准确判定燃烧器的燃烧状态。The paper studied on monitoring and optimization of heating in thermal regeneration asphalt mixing plant.In order to get burning and drying state of asphalt mixing plant on line,a fire information detection system was established by using high temperature charge coupled device（CCD）and flame detector.The obtained fire image and energy radiation information were processed beforehand by de-noising.Some data of them were extracted on line.The information on thermal radiation and burning flame image was studied after changing some burning parameters such as fuel temperature,nebulizer pressure,fuel quantity,and so on.Test result show that air and oil radio,oil temperature and atomization pressure have obvious effect on fire image and energy radiation in different conditions,and present different effect forms.The average of flame brightness and its standard error were calculated by some calculation method of burning flame.Single energy radiation information can＇t represent burning state.Burning state of burner can be represented accurately by the average of flame brightness information and its standard error.A good development foundation of intelligent control system was established in thermal regeneration asphalt mixing plant by detection technologyof burning state.

关 键 词：机械工程 火焰图像 沥青拌和站 亮度均值 亮度标准差 燃烧器 

分 类 号：U415.522[交通运输工程—道路与铁道工程] TM343.03[电气工程—电机]