The utility model discloses a flue gas exhaust chimney with on-line monitoring points, which comprises a chimney body. Two monitoring points, high and low, are arranged in the upper part of the chimney body. The high monitoring point is located at the place with the inner diameter of the chimney body of 3.9m, the high monitoring point is 27m away from the bottom of the chimney body, the low monitoring point is located at the place with the inner diameter of the chimney body of 4.4m, and the low monitoring point is away from the chimney The bottom height of the body is 21 meters. Based on the existing monitoring points, the on-line monitoring and sampling equipment is installed at 4 times of flue diameter above the inflection point of flue gas inlet. This improvement is applicable to the reasonable design and installation of on-line monitoring sampling point at the air pollutant discharge outlet (chimney), which can effectively improve the stability of flue gas velocity at the sampling point, reduce the monitoring fluctuation range, and eliminate the problem of large deviation between the monitoring flow and the actual value, so as to ensure the real and effective monitoring results.
【技术实现步骤摘要】
具有在线监测点的烟气外排烟囱
本技术涉及一种具有在线监测点的烟气外排烟囱。
技术介绍
在线监测是以在线自动监测设备为核心，利用现代先进的仪器设备，达到对污染源进行实时监测的目的。也就是在烟气外排烟囱上安装的自动采样、分析设备及监测设备，通过数据采集、传输，将监测结果在平台上展示，监管部门可以实现24小时对污染处理设施运行情况及排污情况进行监控，为污染减排、排污总量控制、排污税缴纳提供数据依据。烟囱在线监测采样系统安装点低于烟囱烟气入口点4倍内径，导致在线监测流速监测指标不稳定，影响在线监测流量偏差较大，排污总量显示数据比实际值偏大，存在系统烟气流量出入口不匹配问题。
技术实现思路
本技术的目的在于提供一种具有在线监测点的烟气外排烟囱，能够消除监测偏差，提高监测数据的精确度。本技术的目的是这样实现的，一种具有在线监测点的烟气外排烟囱，包括烟囱本体，烟囱本体的上部内设置着高位和低位两个监测点，高位监测点位于烟囱本体内径3.9米处，高位监测点距离烟囱本体底部高度为27米，低位监测点位于烟囱本体内径4.4...
【技术保护点】
1.一种具有在线监测点的烟气外排烟囱，包括烟囱本体，其特征是：烟囱本体的上部内设置着高位和低位两个监测点，高位监测点位于烟囱本体内径3.9米处，高位监测点距离烟囱本体底部高度为27米，低位监测点位于烟囱本体内径4.4米处，低位监测点距离烟囱本体底部高度为21米。/n
【技术特征摘要】
1.一种具有在线监测点的烟气外排烟囱，包括烟囱本体，其特征是：烟囱本体的上部内设置着高位和低位两个监测点，高位监测点位于烟囱本体内...
【专利技术属性】
技术研发人员：毛鸿君，苗建英，闫小刚，路林，
申请(专利权)人：宝钢集团新疆八一钢铁有限公司，
类型：新型
国别省市：新疆;65
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