燃煤锅炉脱硫湿烟羽脱白可行性研究
摘要：湿法脱硫出口的饱和烟气直接由烟囱排入环境会形成“白烟”，产生视觉污染。为了完全消除“白烟”现象，阐述了“白烟”生成和脱白的机理，对比了不同湿烟气脱白的技术特点和适用范围。以南通某燃煤锅炉湿法脱硫烟气为例，通过分析2014—2016年的气象数据，绘制温湿图，确定脱白控制区及无白烟天数控制线。选取气象条件最差的2016年作为设计基准，分析选定烟气冷凝升温技术作为脱白工艺路线。通过分析控制白烟温降温升关系，得出实现不同的白烟控制线所对应的冷凝温度与升温幅度关系，从而选取最经济的冷凝温度和升温幅度，为烟气冷凝升温脱白工艺路线的经济运行提供理论参考。
Abstract:Wet plume forms when the wet flue gas from the wet desulphurization system exits into the ambient air, which would bring about visual pollution. In order to completely eliminate the phenomenon of wet plume, the mechanism of the generation and de-whitening of "white smoke" was described firstly, and the technical characteristics and application scope of different wet smoke de-whitening were compared. Take a coal-fired boiler in Nantong area as an example, the enthalpy and humidity map was drawn by analyzing the meteorological data from 2014 to 2016, determine the white smoke elimination control zone and the white smoke control line.The worst weather conditions in 2016 were selected as the design basis, and the flue gas condensation heating technology was selected as the de-whitening process route. By analyzing the relationship between temperature drop and temperature rise of white smoke control line, the relationship between condensation temperature and temperature rise range corresponding to different white smoke control lines was obtained, so as to select the most economical condensation temperature and temperature rise range, which provides theoretical reference for the economic operation of flue gas condensation heating and de whitening process.
标题：燃煤锅炉脱硫湿烟羽脱白可行性研究
title:Feasibility Study of White Smoke Removal of Flue Gas From Wet Desulphurization in Coal-fired Boiler
作者：周峰, 支晓欢, 沈达, 江建军, 邹建, 徐海涛, 李强, 梁银春
authors:Feng ZHOU, Xiaohuan ZHI, Da SHEN, Jianjun JIANG, Jian ZOU, Haitao XU, Qiang LI, Yinchun LIANG
关键词：湿烟羽,烟气脱白,温湿图,冷凝升温技术,
keywords:wet plume,flue gas de-whitening,humidity temperature map,condensation and reheating composite technology,
发表日期：2021-10-31
- 文件大小:
- 475.96 KB
- 下载次数:
- 60
-
高速下载
|
