某660 MW机组脱硫废水烟道蒸发系统设计及运行效果分析

doi:10.11930/j.issn.1004-9649.201712030

中国电力 ›› 2018, Vol. 51 ›› Issue (12): 158-162.DOI: 10.11930/j.issn.1004-9649.201712030

某660 MW机组脱硫废水烟道蒸发系统设计及运行效果分析

晋银佳¹, 梁秀进¹, 孙海峰¹, 王丰吉¹, 朱跃¹, 姬海宏¹, 林敬民²

1. 华电电力科学研究院, 浙江杭州 310030;
2. 华电潍坊发电有限公司, 山东潍坊 261032

收稿日期:2017-12-21 修回日期:2018-04-13 出版日期:2018-12-05 发布日期:2018-12-13
作者简介:晋银佳(1986-),男,工程师,博士,从事火电厂环保技术开发与研究,E-mail:757107023@qq.com;梁秀进(1979-),男,博士,从事火电厂环保技术开发与研究,E-mail:xiujin-liang@chder.com
基金资助:
国家重点研发计划资助项目（2016YFC0203704-2）。

System Design and Operation Analysis of the Desulfurization Wastewater Treatment with Flue Evaporation Process for a 660 MW Unit

JIN Yinjia¹, LIANG Xiujin¹, SUN Haifeng¹, WANG Fengji¹, ZHU Yue¹, JI Haihong¹, LIN Jingmin²

1. Huadian Electric Power Research Institute, Hangzhou 310030, China;
2. Huadian Weifang Power Company, Weifang 261032, China

Received:2017-12-21 Revised:2018-04-13 Online:2018-12-05 Published:2018-12-13
Supported by:
This work is supported by The National key Research and Development Program of China (No.2016YFC0203704-2).

摘要/Abstract

摘要： 脱硫废水因含盐量高且成分复杂，成为燃煤电厂废水“零排放”的难题，采用烟道蒸发方式予以处理是解决途径之一。在数学建模和Fluent模拟分析的基础上，对雾化粒径为50 μm和60 μm时脱硫废水的蒸发情况进行研究，结果为130 ℃烟气温度下这2种粒径的脱硫废水蒸发时间分别为0.78 s和0.85 s，所消耗的压缩空气量（标准状态）分别为60 m³/min和26 m³/min。以某660 MW燃煤机组为研究对象，根据烟道内流场特点对该机组脱硫废水烟道雾化蒸发系统的设计进行优化。脱硫废水雾化蒸发系统安装运行后，对系统运行数据进行了研究分析。实践结果表明，脱硫废水烟道雾化蒸发系统的运行对脱硫系统、除尘器系统的正常运行没有明显影响，粉煤灰品质的少许变化不影响粉煤灰的品质和资源化利用。

关键词: 燃煤电厂, 脱硫废水, 烟道蒸发, 系统设计, Fluent模拟, 运行分析

Abstract: Due to the high salinity and complex components, the treatment of the flue gas desulfurization wastewater is always a challenge to meet the "zero discharge" standard. Based on the mathematical model and Fluent simulation, the evaporation process of the flue gas desulfurization wastewater with droplet diameters at 50 μm and 60 μm are studied. The two sizes of wastewater droplets are vaporized in 0.78 s and 0.85 s at 130℃, and the compressed air consumptions are 60 m³/min and 26 m³/min, respectively. Moreover, the characteristics of the flue flow field in a 660 MW unit are also considered in the optimization of the wastewater evaporation system design. The operation data of the wastewater evaporation system are collected and analyzed for the further system optimization. Experimental results show that the evaporation of the desulfurization wastewater in the flue does not affect the flue gas desulfurization system and the electrostatic precipitator, and the variation of the fly ash is still within the resource utilization limit.

Key words: coal-fired power plants, FGD wastewater, flue vaporization, system design, fluent simulation, operation analysis

中图分类号:

X511
TM621.9

晋银佳, 梁秀进, 孙海峰, 王丰吉, 朱跃, 姬海宏, 林敬民. 某660 MW机组脱硫废水烟道蒸发系统设计及运行效果分析[J]. 中国电力, 2018, 51(12): 158-162.

JIN Yinjia, LIANG Xiujin, SUN Haifeng, WANG Fengji, ZHU Yue, JI Haihong, LIN Jingmin. System Design and Operation Analysis of the Desulfurization Wastewater Treatment with Flue Evaporation Process for a 660 MW Unit[J]. Electric Power, 2018, 51(12): 158-162.

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https://www.electricpower.com.cn/CN/Y2018/V51/I12/158

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某660 MW机组脱硫废水烟道蒸发系统设计及运行效果分析

System Design and Operation Analysis of the Desulfurization Wastewater Treatment with Flue Evaporation Process for a 660 MW Unit

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某660 MW机组脱硫废水烟道蒸发系统设计及运行效果分析

System Design and Operation Analysis of the Desulfurization Wastewater Treatment with Flue Evaporation Process for a 660 MW Unit

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