高精度高炉冷却壁水温测量系统设计  

Design of high precision blast furnace cooling wall water temperature measurement system

作　　者：张修成 方挺 董冲 韩家明 徐亭 ZHANG Xiu-cheng;FANG Ting;DONG Chong;HAN Jia-ming;XU Ting(College of Electrical and Information Engineering,Anhui University of Technology,Anhui Maanshan 243002,China)

机构地区：[1]安徽工业大学电气与信息工程学院,安徽马鞍山243002

出　　处：《齐齐哈尔大学学报（自然科学版）》2022年第3期7-10,共4页Journal of Qiqihar University(Natural Science Edition)

基　　金：安徽工业大学校青年基金“基于人工智能的舰船目标识别技术研究”(QZ202109);安徽工业大学校青年基金“电力设备外观缺陷的数据合成与图像检测方法研究”(QZ202109)。

摘　　要：为了满足对高炉冷却壁水温的测量要求,设计了一种高精度的高炉冷却壁水温测量系统。温度数据采集上,以铂电阻PT1000作为温度传感器,采用四线制的接法消除导引线的影响,使用高精度的模数转换芯片MAX31865读取初始温度数据。温度数据的处理上,通过中位值平均滤波算法和卡尔曼滤波算法对初始温度数据进行滤波处理,对滤波后的温度数据分段拟合,得到精确地温度值。测试结果表明,该系统在20~50℃范围内,测量精度能达到0.01℃,具有较好的工程使用价值。In order to meet the requirement of temperature measurement of blast furnace cooling wall,a high precision temperature measurement system of blast furnace cooling wall is designed.For temperature data acquisition,platinum resistance PT1000 is used as the temperature sensor,its resistance is compensated by four-wire connection method,and the high-precision analog to digital conversion chip MAX3186 is used to read the initial temperature data.In the process of temperature data,the initial temperature data is filtered by median average filtering algorithm and Kalman filtering algorithm,and the filtered temperature data is piecewise fitted to get accurate temperature value.The test results show that the measurement accuracy of the system can reach 0.01℃in the range of 20~50℃,which has good engineering application value.

关 键 词：高炉冷却壁 水温测量 PT1000 中位值平均滤波 卡尔曼滤波 

分 类 号：TF573.1[冶金工程—钢铁冶金] TH811[机械工程—仪器科学与技术]