发电技术2024，Vol.45Issue(4)：590-599,10.DOI:10.12096/j.2096-4528.pgt.23015
火电厂烟塔合一技术应用现状与现存问题分析
Application Status and Existing Problem Analysis of the Natural Draft Cooling Towers With Flue Gas Injection Technology in Thermal Power Plants
摘要
Abstract
[Objectives]The natural draft cooling towers with flue gas injection(NDCT-FGI)is a crucial retrofitting technique for enhancing the efficiency of thermal power plants.However,its operational impacts on existing systems are significant and cannot be overlooked.Therefore,the current status of NDCT-FGI technology and its problems in operation were analyzed,and the countermeasures were put forward.[Methods]Through comprehensive analysis of the existing research,the causes and formation mechanism of environmental impact,cooling tower corrosion,and deterioration of circulating cooling water quality caused by the technical transformation of NDCT-FGI were discussed.[Results]The protective distance can be reasonably set by the simulation results of flue gas emission trajectory and pollutant landing concentration by computational fluid dynamics(CFD).Installation of baffles at the tower top can prevent flue gas washdown during the extreme weather conditions.Different anticorrosive coatings are recommended for various parts of the cooling tower to extend its service life.To control and optimize cooling water quality,the advanced water treatment techniques are necessary for optimizing chemical dosing,and the management of effluent and makeup water must be carefully controlled to ensure operational sustainability.[Conclusions]By implementing appropriate and effective countermeasures,the negative impacts of NDCT-FGI retrofitting can be mitigated,thereby enhancing both the environmental and economic benefits for thermal power plants.关键词
火电/冷却塔/烟气排放/环境污染/锅炉/腐蚀/脱硫/脱硝Key words
thermal power/cooling tower/smoke emission/environmental pollution/boiler/corrosion/desulphurization/denitration分类
能源科技引用本文复制引用
夏忠林,陈文通,许书峤,吴忠胜,谢强,马双忱,马京香..火电厂烟塔合一技术应用现状与现存问题分析[J].发电技术,2024,45(4):590-599,10.基金项目
河北省重点研发计划项目(18273708D). Project Supported by Key Research and Development Program of Hebei Province(18273708D). （18273708D）
