基于多传感器数据的燃煤锅炉烟气污染物排放监测系统设计  

Design of a Monitoring System for Flue Gas Pollutant Emissions from Coal-fired Boilers Based on Multi-sensor Data

作　　者：文竹 苗苗 师伯宁 WEN Zhu;MIAO Miao;SHI Boning(Shaanxi Vocational and Technical College,Xi’an 710038,China)

机构地区：[1]陕西职业技术学院,陕西西安710038

出　　处：《工业加热》2024年第10期43-48,共6页Industrial Heating

基　　金：陕西省教育厅专项科研计划项目(23JK0395)。

摘　　要：燃煤锅炉烟气中的污染物种类多,包括颗粒物、二氧化硫、氮氧化物等,同时燃煤锅炉烟气排放监测产生的数据庞大且复杂,影响污染物监测的精度。为了实现对燃煤锅炉烟气中多种污染物的实时监测,设计了基于多传感器数据的燃煤锅炉烟气污染物排放监测系统。该系统的硬件设计主要包括多传感器模块、数据采集器和通信模块等。将通过硬件部分的多个传感器采集到的燃煤锅炉烟气污染物排放数据传送到系统的软件部分中,利用高斯烟羽模型获取烟气污染物的排放扩散范围,并基于通信距离去除传感器采集过程中的无用数据,以此节省监测时间。引入差分吸收光谱法反演出烟气污染物各成分的排放浓度,并使用通信协议将结果数据传送至硬件系统中,实现燃煤锅炉烟气污染物排放的实时监测。实验结果表明,所提方法设计的监测系统能够精确预测出烟气污染物排放的扩散范围,且监测精度、鲁棒性以及稳定性高。There are many types of pollutants in the flue gas of coal-fired boilers,including particulate matter,sulfur dioxide,nitrogen oxides,etc.At the same time,the data generated from monitoring flue gas emissions of coal-fired boilers is huge and complex,which affects the accu-racy of pollutant monitoring.In order to achieve real-time monitoring of various pollutants in the flue gas of coal-fired boilers,a monitoring sys-tem for flue gas pollutant emissions of coal-fired boilers based on multi-sensor data was designed.The hardware design of the system mainly in-cludes multiple sensor modules,data collectors,and communication modules.Transfer the emission data of coal-fired boiler flue gas pollutants collected through multiple sensors in the hardware part to the software part of the system,use the Gaussian plume model to obtain the emission diffusion range of flue gas pollutants,and remove useless data during the sensor collection process based on communication distance,in order to save monitoring time.Introducing Differential Optical Absorption Spectroscopy(DOAS)to invert the emission concentrations of various components of flue gas pollutants,and using communication protocols to transmit the resulting data to the hardware system,achieving real-time monitoring of flue gas pollutant emissions from coal-fired boilers.The experimental results show that the monitoring system designed by the proposed method can accurately predict the diffusion range of flue gas pollutant emissions,and has high monitoring accuracy,robustness,and stability.

关 键 词：多传感器数据采集 高斯烟羽模型 数据去冗余 差分吸收光谱法 气体排放监测 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]