基于ARM的高炉冷却壁微小水温差高精度无线监测系统
发布时间：2018-10-08 14:11
【摘要】：高炉炉壁冷却系统是现代高炉炉体不可或缺的工艺单元,通过对微小水温差的监测实现对高炉冷却壁热负荷状态的实时分析,从而判断高炉炉内生产状况,最终延长高炉使用寿命。本文以某炼铁厂高炉软水密闭循环冷却系统为研究对象,将嵌入式技术与无线通信技术的最新研究成果引入到高炉冷却水温差监测系统,在恶劣环境下高炉安全生产运行中取得了良好的效果,具有广泛的工程应用前景。本文主要研究内容和成果如下:一、无线微小水温差高精度检测装置的设计开发。装置包括以CC1110为CPU的无线测温节点与数据采集终端,采用SimpliciTI网络通信协议解决了现有检测装置存在的高温电缆消耗大、维护难度大等缺点;采用穿透能力较强的433M通信频段解决了高炉现场的障碍物阻隔问题,实现无线网络稳定;通过软件设计实现了无线测温节点的低功耗;结合AD7799与Pt1000的工作特性设计了比率双电桥温度采集电路和自适应渐消Kalman滤波,保证装置最大误差不高于0.02℃,为目前国内同系统中较高水平,满足高炉现场生产需求。二、无线测温节点的状态分析设计。本文设计了可安装在现场的ARM协调器,协调器通过RS485通信方式采集无线测温节点数据,其内置实时曲线显示、节点电量检测及节点通信质量评估等功能,方便现场工人查看无线节点工作状态,进而提高工作效率,对于取代传统的高炉冷却水检测装置具有重要意义。三、对无线微小水温差监测系统进行了实验及现场测试。结果表明,该系统测量精度高、无线通信质量稳定可靠、节点功耗低及协调器界面友好,满足高炉现场生产需求,在工业控制领域具有广阔的应用前景。
[Abstract]:The blast furnace wall cooling system is an indispensable process unit of modern blast furnace body. By monitoring the tiny water temperature difference, the real time analysis of the heat load state of the blast furnace cooling stave is realized, so as to judge the production status of the furnace. Finally, the service life of blast furnace is extended. In this paper, the latest research results of embedded technology and wireless communication technology are introduced into the temperature difference monitoring system of blast furnace cooling water, taking the closed cycle cooling system of blast furnace soft water in a certain ironmaking plant as the research object. The blast furnace has achieved good results in the safe operation of blast furnace under the bad environment, and has wide engineering application prospect. The main contents and achievements of this paper are as follows: first, the design and development of wireless micro water temperature difference high precision detection device. The device consists of wireless temperature measurement node and data acquisition terminal with CC1110 as CPU, and SimpliciTI network communication protocol is used to solve the shortcomings of the existing detection devices such as high temperature cable consumption and difficult maintenance. The 433m communication frequency band with strong penetration ability is used to solve the barrier problem in blast furnace field, and the wireless network stability is realized, and the low power consumption of wireless temperature measurement node is realized by software design. Combined with the working characteristics of AD7799 and Pt1000, the temperature acquisition circuit of ratio double bridge and adaptive fading Kalman filter are designed. The maximum error of the device is not higher than 0.02 鈩，
本文编号：2257059
[Abstract]:The blast furnace wall cooling system is an indispensable process unit of modern blast furnace body. By monitoring the tiny water temperature difference, the real time analysis of the heat load state of the blast furnace cooling stave is realized, so as to judge the production status of the furnace. Finally, the service life of blast furnace is extended. In this paper, the latest research results of embedded technology and wireless communication technology are introduced into the temperature difference monitoring system of blast furnace cooling water, taking the closed cycle cooling system of blast furnace soft water in a certain ironmaking plant as the research object. The blast furnace has achieved good results in the safe operation of blast furnace under the bad environment, and has wide engineering application prospect. The main contents and achievements of this paper are as follows: first, the design and development of wireless micro water temperature difference high precision detection device. The device consists of wireless temperature measurement node and data acquisition terminal with CC1110 as CPU, and SimpliciTI network communication protocol is used to solve the shortcomings of the existing detection devices such as high temperature cable consumption and difficult maintenance. The 433m communication frequency band with strong penetration ability is used to solve the barrier problem in blast furnace field, and the wireless network stability is realized, and the low power consumption of wireless temperature measurement node is realized by software design. Combined with the working characteristics of AD7799 and Pt1000, the temperature acquisition circuit of ratio double bridge and adaptive fading Kalman filter are designed. The maximum error of the device is not higher than 0.02 鈩，
本文编号：2257059
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