中国电力2016，Vol.49Issue(7)：151-156,6.DOI:10.11930/j.issn.1004-9649.2016.07.151.06
低低温电除尘器设计烟温的理论计算及存在问题
The Theoretical Calculation of Designed Temperature of Flue Gas in Low-Low Temperature Electrostatic Precipitator and the Existing Problems
沈艳梅 1董琨 2崔智勇 2魏书洲3
作者信息
- 1. 中国神华能源股份有限公司国华电力分公司,北京 100025
- 2. 神华国华(北京)电力研究院有限公司,北京 100025
- 3. 神华国华三河发电有限责任公司,河北三河065201
- 折叠
摘要
Abstract
Compared with the traditional electrostatic precipitator,the low-low temperature electrostatic precipitator (LLT-ESP) has some advantages in the aspects of energy conservation and environmental protection.This paper conducts a study on the practical application cases of LLT-ESP both at home and abroad,analyzing the differences of their designed flue gas temperatures.The conclusion is that the correct estimate of the gas acid dew-point is crucial for the temperature designing of LLT-ESP.Taking a typical 600-MW coal-fired power plant for example,three widely-used methods are adopted to calculate the acid dew-point with the corresponding accuracy and possible problems being analyzed.In addition,the D/S ratio is calculated to evaluate the device corrosion potential and the feasibility of LLT-ESP.At the end,suggestions on the temperature design of LLT-ESP are proposed,and the possible problems in the LLT-ESP operation when the flue gas temperature being long-term higher than the acid dew point.are analyzed.关键词
燃煤电厂/低低温电除尘器/酸露点/烟温计算Key words
coal-fired power plant/low-low temperature electrostatic precipitator/acid dew-point/flue gas temperature calculation分类
资源环境引用本文复制引用
沈艳梅,董琨,崔智勇,魏书洲..低低温电除尘器设计烟温的理论计算及存在问题[J].中国电力,2016,49(7):151-156,6.
