国内首台1000 MW褐煤机组的脱硫废水零排放技术路线应用  

Application of Zero Discharge Technology Route for Desulfurization Wastewater of the First 1000 MW Brown Coal Unit in China

作　　者：宋伟 SONG Wei(Suneng(Xilingol)Power Generation Co.,Ltd.,Inner Mongolia Autonomous Region,Xilingol League 026321,Inner Mon-golia Autonomous Region,China)

机构地区：[1]苏能(锡林郭勒)发电有限公司,内蒙古锡林郭勒盟026321

出　　处：《电力与能源》2024年第1期81-84,共4页Power & Energy

摘　　要：目前废水的低温多效蒸发零排放工艺成为现今市场的主流。以国内首台1000 MW褐煤机组采用的低温多效闪蒸浓缩工艺为例,其零排放技术路线包括低温烟气余热利用、多效闪蒸浓缩、干湿空冷联合冷却等创新技术,实现了脱硫废水处理零排放。该技术运行电耗低,淡水回收率高,在保障相对较低的运行成本的同时,实现了脱硫废水的零排放。此外,该技术还首次引入干湿空冷联合冷却塔装置用来给三效零排放系统提供冷却水,实现了系统补水的自供应。Currently,the low-temperature multi effect evaporation zero discharge process for wastewater has be⁃come the mainstream in the market.Taking the low-temperature multi effect flash evaporation concentration pro⁃cess adopted by the first 1000MW brown coal unit in China as an example,the low-temperature multi effect flash evaporation zero emission technology route was adopted,including low-temperature flue gas waste heat utiliza⁃tion,multi effect flash evaporation concentration,dry wet air cooling combined cooling and other new technolo⁃gies,achieving zero emission of desulfurization wastewater treatment.This technology has low power consump⁃tion and high freshwater recovery rate,and can achieve zero discharge of desulfurization wastewater while meet⁃ing lower operating costs.In addition,this technology directly uses the dry wet air cooling combined cooling tower device for the first time to provide cooling water to the three effect zero emission system,achieving self supply of system water replenishment,which is a major breakthrough in the application of water shortage areas.

关 键 词：1000 MW褐煤机组 三效蒸发 脱硫废水 干湿空冷联合冷却塔 

分 类 号：X773[环境科学与工程—环境工程]