烟气排放连续监测系统的应用.pdf

石油化工自动化,2010,4:36
过程控制
AUTOMATION IN PETRO-CHEMICAL INDUSTRY
烟气排放连续监测系统的应用
(东华工程科技股份有限公司,合肥230024)
摘要:烟气排放连续监测系统由气态污染物监测颗粒物监测、烟气参数监测及数据采集与处理4个子系统组成。气态
污染物监测采用紫外差分法测量高湿烟气中的SO2,NO)2,用电化学法测量CO,O2,用红外技术测量CO2,利用原位式半导体激
光光谱吸收(DLAS)技术测量HCL,FHF,CH4,然后通过干湿转化计算SO2,NO-,O2,HCL,HF,CH4干烟气浓度;颗粒物监浏
采用激光透射原理;烟气的温度、压力采用温度、压力传感器测量,烟气流速采用皮托管测量。该烟气排放连续监测系统能够很
好地监测焚烧炉岀口烟囱尾气,并且能够满足与企业内部的控制系统和环保部门的数据系统通信的要求
关键词:烟气排放连续监测系统;危險废物;焚烧炉
中图分类号:TP277
文献标志码:B
文章编号:1007-7324(2010)04-0036-03
The Application of the Flue Gas Emission Continuous Monitoring System
Ge Peng
(East China Eng. Sci. and Tech. Co. Itd, Hefei, 230024, China
Abstract: The flue gas emission continuous monitoring system consists of 4 sub-systems, i. e. gas phase
pollutants monitoring system, particulate pollutants monitoring system, flue gas parameters monitoring
system and data acquisition and processing system. For gas phase pollutant monitoring, Uv-difference
process is used for measuring SO and NO2, electrochemical process for measuring CO and O, infrared
technique for measuring CO in high humidity flue gas, and in situ tunable diode laser absorption
spectroscopy (DLAS) technique for measuring HCL, HF, CH, The concentration of dry flue gases
SO NO% O HCI, HF, CH is then calculated by dry-wet conversion calculation. The principle o
laser transmission is adopted for measuring particulates monitoring. Temperature and pressure
transducers are used for measuring the temperature and pressure of flue gas. Pitot tubes are employed
for measuring the flow velocity of flue gas. This flue gas continuous emission monitoring system can
work well to monitor the exhaust gas from the stack of the incinerator to meet the relevant national
standards
Keywords: continuous emission monitoring system; hazardous waste; incinerator
项目概况及工艺流程
颗粒物进行浓度和排放总量连缤监测,并将信息
合肥市危险废物集中处置项目是根据国家的实时传输到主管部门的装置。 CEMS分别由气态
有关规定,强化危险废物全过程监管,有利于对全污染物监测子系统、颗粒物监测子系统、烟气参
市危险废物实施集中处理,防治污染,保护环境,创数监测子系统和数据采集与处理子系统组成。
建国家环境保护模范城市的需要而建设的。该项气态污染物监测子系统主要用于监测气态污染
目危险废物集中处置量为21.1kt/a,其中焚烧处物SO2,NO等的浓度和排放总量;颗粒物监测
理规模为5.9kt/a,其余采取固化填埋处理。选择子系统主要用来监测烟尘的浓度和排放总量;烟
成熟、可靠的焚烧工艺,使焚烧后的尾气浄化后达气参数监测子系统主要用来测量烟气的流速、温
到国家相关标准。因此,烟囱排放气体的准确检测
是项目成败的关键。焚烧工艺流程如图1所示。
收稿日期:2010-04-25(修改稿)。
2姻气排放连续监测系统{CEMS)
作者筒介;葛鹏(1976~),男,2000年毕业于南岛科技大学
CEMS( Continuous Mission Monitoring生产过程自动化专业,学士学位,现工作于东华工程科技股份有限
Systen)是指对大气污染源排放的气态污染物和公可(原化三院)、任自控专业工程师