基于图像处理的重金属污泥熔融温度场研究  

Researchon surface treatment sludge melting temperature field with image processing technology

作　　者：钱袁栋 马增益[1,2] 张艺颗 严建华[1] QIAN Yuan-dong;MA Zeng-yi;ZHANG Yi-ke;YAN Jian-hua(State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China;Ningbo Science and Innovation Center,Zhejiang University,Ningbo 315100,China)

机构地区：[1]浙江大学能源清洁利用国家重点实验室,浙江杭州310027 [2]浙江大学宁波科创中心,浙江宁波315100

出　　处：《能源工程》2022年第5期48-52,67,共6页Energy Engineering

基　　金：浙江省重点研发计划项目(2020C03087);广西科技重大专项项目(2020ZD003)。

摘　　要：运用彩色CMOS摄像机获取重金属污泥熔融炉内图像,基于彩色图像比色测温法建立了富氧熔融过程温度场测量方法,采用红外点温仪和热电偶进行误差修正,发现使用红绿色光进行比色测温的效果较好。将图像分析测温结果与实测温度进行比较,可以发现测量误差低于4.52%。运用图像测温法对熔融炉内温度场变化过程进行了研究,污泥投入富氧熔融炉后温度不断提升,熔炉整体温度分布逐渐趋向均匀,最后呈现四周温度高、中间温度低的切圆熔融燃烧工况下的熔融温度场分布。Based on the image captured in sludge melting furnace by color CMOS camera,temperature field measurement method of the oxygen-enriched melting process of surface treatment sludge was developed.Error analysis is performed on temperature difference between calculated temperature and the infrared spot thermometer and thermocouple measurement data.The results show that the effect of colorimetric temperature measurement using RG channel is the best,and the effect of using RGB colorimetric temperature measurement is the second.Comparing the temperature measurement results of image analysis with the measured temperature,it can be found that the measurement error is below 4.52%.The change of temperature field in the melting process was studied by image measurement.For the process of oxygen-enriched melting of sludge,furnace temperature continuely increase with an overall uniform temperature distribution,and finally the melting temperature field distribution state under tangential combustion is displayed with high at ambient and low at intermediate.

关 键 词：污泥 富氧熔融 比色测温 温度场 图像处理 

分 类 号：X703[环境科学与工程—环境工程]