燃煤电厂旁路烟气干燥塔控制技术开发

doi:10.11930/j.issn.1004-9649.201902077

中国电力 ›› 2020, Vol. 53 ›› Issue (1): 147-154.DOI: 10.11930/j.issn.1004-9649.201902077

燃煤电厂旁路烟气干燥塔控制技术开发

王文欣^1,2, 高毅³, 刘春红^1,2, 童小忠^1,2, 陈彪^1,2, 祁志福^1,2, 张勤^1,2

1. 浙江浙能技术研究院有限公司, 浙江杭州 311121;
2. 浙江省火力发电高效节能与污染物控制技术研究重点实验室, 浙江杭州 311121;
3. 浙江浙能台州第二发电有限责任公司, 浙江台州 318000

收稿日期:2019-02-21 修回日期:2019-05-12 发布日期:2020-01-15
作者简介:王文欣(1991-),男,硕士,美国伊利诺伊大学香槟分校访问学者,从事电厂废水、废气、废渣等环保问题的处理工作,E-mail:wangwx@126.com

Development of Control Technology for Bypass Flue Gas Drying Tower of Coal-Fired Power Plant

WANG Wenxin^1,2, GAO Yi³, LIU Chunhong^1,2, TONG Xiaozhong^1,2, CHEN Biao^1,2, QI Zhifu^1,2, ZHANG Qin^1,2

1. Zhejiang Energy R&D Institute Co., Ltd., Hangzhou 311121, China;
2. Key Research Laboratory of High Efficiency Energy Saving and Pollutant Control Technology in Thermal Power Generation of Zhejiang Province, Hangzhou 311121, China;
3. Zhejiang Zheneng Taizhou Second Electric Power Generation Co., Ltd., Taizhou 318000, China

Received:2019-02-21 Revised:2019-05-12 Published:2020-01-15

摘要/Abstract

摘要： 以浙江两电厂为研究对象，分析了旁路烟气干燥脱硫废水零排放技术的控制难点，以不影响粉煤灰质量为目标，建立了多参数控制模型，在考虑烟气酸露点情况下确定最低烟气温度、最大脱硫废水处理量；同时基于能量平衡的精确控制技术和基于关键参数的软测量模型的互为备用，实现了脱硫废水的高效、低能耗干燥。台州第二发电厂脱硫水质控制限制的计算表明，粉煤灰可用作普通混凝土添加剂；长兴电厂脱硫废水干燥塔在旁路烟气挡板门全开的情况下，烟气入口温度357 ℃，脱硫废水质量流量达到4 200 kg/h时，出口温度仍有117 ℃；而在深度调峰工况，烟气入口温度下降到280 ℃时，出口温度高于110 ℃的下线预警值时，系统出力为1 750 kg/h，实验结果与基于能量平衡算法的理论预期基本一致。

关键词: 燃煤电厂, 脱硫废水, 零排放, 旁路烟气干燥塔, 多参数控制模型, 深度调峰

Abstract: Taking two Zhejiang power plants as the research objects, the difficulties of zero discharge control technology for desulphurization wastewater from bypass flue gas drying tower are analyzed. In order to keep the quality of fly ash unchanged, a multi-parameter control model is established to determine the minimum flue gas temperature and the maximum desulphurization wastewater treatment capacity under the consideration of flue gas acid dew point. At the same time, the accurate control technology based on energy balance and the soft sensing model based on key parameters are both implemented to backup each other, such that the goal of high efficiency and low energy consumption drying of desulphurization wastewater is achieved. The calculation of desulphurization water quality control limit of Taizhou Second Power Plant shows that fly ash can be recycled as ordinary concrete additive. As for the drying tower of Changxing Power Plant, with the flue gas baffle door fully open, when the inlet temperature is 35℃ and the mass flow rate of desulphurization wastewater reaches 4 200 kg/h, the outlet temperature still remains at 117℃, but once the inlet temperature of flue gas drops to 280℃ and the outlet temperature climbs above 110℃, the output of the system then becomes 1 750 kg/h, which is basically consistent with the theoretical expected value based on energy balance algorithm.

Key words: coal-fired power plant, desulfurization wastewater, zero emission, bypass flue gas drying tower, multi-parameter control model, deep peaking

王文欣, 高毅, 刘春红, 童小忠, 陈彪, 祁志福, 张勤. 燃煤电厂旁路烟气干燥塔控制技术开发[J]. 中国电力, 2020, 53(1): 147-154.

WANG Wenxin, GAO Yi, LIU Chunhong, TONG Xiaozhong, CHEN Biao, QI Zhifu, ZHANG Qin. Development of Control Technology for Bypass Flue Gas Drying Tower of Coal-Fired Power Plant[J]. Electric Power, 2020, 53(1): 147-154.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201902077

https://www.electricpower.com.cn/CN/Y2020/V53/I1/147

参考文献

[1] MOTOFUMI I, SHINTARO H, NORIKAZU I et al. MHI's simple zero liquid discharge system for wet FGD[R]. Mitsubishi Heavy Industries America, Inc; Mitsubishi Heavy Industries, Ltd., 2011.
[2] 佘晓利, 潘卫国, 王程瑶, 等. 脱硫废水旁路塔雾化蒸发数值模拟[J]. 中国电力, 2019, 52(1):129-136
SHE Xiaoli, PAN Weiguo, WANG Chengyao, et al. Numerical simulation of evaporative evaporation of desulfurization wastewater by the by-pass tower[J]. Electric Power, 2019, 52(1):129-136
[3] SHABDE V S, HOO K A. Design and operation of a spray dryer for the manufacture of hollow microparticles[J]. Industrial & Engineering Chemistry Research, 2006, 45(25):8329-8337.
[4] 刘海洋, 江澄宇, 谷小兵, 等. 燃煤电厂湿法脱硫废水零排放处理技术进展[J]. 环境工程, 2016, 34(4):33-36
LIU Haiyang, JIANG Chengyu, GU Xiaobing, et al. Development of zero liquid discharge technologies for desulfurization wastewater from coal-fired power plant[J]. Environmental Engineering, 2016, 34(4):33-36
[5] 叶春松, 罗珊, 张弦, 等. 燃煤电厂脱硫废水零排放处理工艺[J]. 热力发电, 2016, 45(9):105-108, 139
YE Chunsong, LUO Shan, ZHANG Xian, et al. Key problems and developing trend of zero discharge technology of desulfurization waste water[J]. Thermal Power Generation, 2016, 45(9):105-108, 139
[6] 姚子麟, 袁伟中, 陈彪, 等. 燃煤电厂末端废水调质与干化技术研究及其工程示范[J]. 中国电力, 2018, 51(6):48-53
YAO Zilin, YUAN Weizhong, CHEN Biao, et al. Technical study and demonstration project on the quality control and drying of terminal wastewater in coal-fired power plants[J]. Electric Power, 2018, 51(6):48-53
[7] 赵素红. 电化学技术在环境保护中的应用[J]. 电力科技与环保, 2013, 29(6):11-13
ZHAO Suhong. Application of electrochemistry technology in environmental protection[J]. Electric Power Technology and Environmental Protection, 2013, 29(6):11-13
[8] 王可辉, 蒋芬, 徐志清, 等. 燃煤电厂脱硫废水零排放工艺路线研究[J]. 工业用水与废水, 2016, 47(1):9-12
WANG Kehui, JIANG Fen, XU Zhiqing, et al. Study on process route of desulfurization wastewater zero discharge from coal-fired power plant[J]. Industrial Water & Wastewater, 2016, 47(1):9-12
[9] 李鹏飞, 佟会玲. 烟气酸露点计算方法比较和分析[J]. 锅炉技术, 2009, 40(6):5-8, 20
LI Pengfei, TONG Huiling. Comparison and analysis on the calculation methods of acid dew point of flue gas[J]. Boiler Technology, 2009, 40(6):5-8, 20
[10] 张广文, 孙墨杰, 张蒲璇, 等. 燃煤火力电厂脱硫废水零排放可行性研究[J]. 东北电力大学学报, 2014, 34(5):87-91
ZHANG Guangwen, SUN Mojie, ZHANG Puxuan, et al. The study of the feasibility of zero discharge of desulfurization wastewater in coal-fired power plant[J]. Journal of Northeast Dianli University (Natural Science), 2014, 34(5):87-91
[11] 莫华, 吴来贵, 周加桂. 燃煤电厂废水零排放系统开发与工程应用[J]. 合肥工业大学学报(自然科学版), 2013, 36(11):1368-1372
MO Hua, WU Laigui, ZHOU Jiagui. Development and application of zero wastewater discharge system for coal-fired power plant[J]. Journal of Hefei University of Technology(Natural Science), 2013, 36(11):1368-1372
[12] 王治安, 林卫, 李冰. 脱硫废水零排放处理工艺[J]. 电力科技与环保, 2012, 28(6):37-38
WANG Zhi'an LIN Wei LI Bing. Discussion on process of desulfurization waste water's zero -draining disposal[J]. Electric Power Technology and Environmental Protection, 2012, 28(6):37-38
[13] 周卫青, 李进. 火电厂石灰石湿法烟气脱硫废水处理方法[J]. 电力环境保护, 2006, 22(1):29-31
ZHOU Weiqing, LI Jin. Methods to treat waste water from limestone wet flue gas desulfurization in power plant[J]. Electric Power Environmental Protection, 2006, 22(1):29-31
[14] 盘思伟, 姚唯健, 程诺伟. 介绍一种湿法脱硫废水处理方法[J]. 电力环境保护, 2008, 24(6):10-11
PAN Siwei, YAO Weijian, CHENG Nuowei. Discussion on a new wet desulphurization wastewater treatment technology[J]. Electric Power Environmental Protection, 2008, 24(6):10-11
[15] 袁伟中, 刘春红, 童小忠, 等. 燃煤锅炉采用烟气旁路干燥技术实现脱硫废水零排放[J]. 电力科技与环保, 2017, 33(3):18-21
YUAN Weizhong, LIU Chunhong, TONG Xiaozhong, et al. Coal-fired boiler flue gas bypass drying technology to achieve zero liquid discharge of desulfurization water[J]. Electric Power Technology and Environmental Protection, 2017, 33(3):18-21

燃煤电厂旁路烟气干燥塔控制技术开发

Development of Control Technology for Bypass Flue Gas Drying Tower of Coal-Fired Power Plant

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

[1]	任鑫, 王渡, 金亚飞, 王志刚. 基于能耗、经济性及碳排放的热电联产机组运行优化[J]. 中国电力, 2023, 56(4): 201-210.
[2]	李雄威, 王昕, 顾佳伟, 徐家豪. 考虑火电深度调峰的风光火储系统日前优化调度[J]. 中国电力, 2023, 56(1): 1-7,48.
[3]	赵宁, 冯永新, 林廷坤, 杨青山, 谢志文. 脱硫废水旋转喷雾蒸发与旁路烟道蒸发特性研究[J]. 中国电力, 2022, 55(7): 193-200.
[4]	刘含笑, 吴黎明, 赵琳, 于立元, 郦建国, 崔盈. 燃煤电厂湿式电除尘器减排及能效特性研究[J]. 中国电力, 2022, 55(5): 196-203.
[5]	张明理, 张娜, 武志锴, 高靖, 徐熙林, 李健, 吕泉. 日前电能市场与深度调峰市场联合出清模型[J]. 中国电力, 2022, 55(2): 138-144.
[6]	孙尊强, 郑成航, 周灿, 王圣, 马修元, 叶毅科. 燃煤电厂典型除尘器运行现状分析及优化[J]. 中国电力, 2022, 55(11): 194-201.
[7]	王鹏程, 邓博宇, 蔡晋, 王珂, 孔皓, 李丽锋, 张缦, 杨海瑞. 超临界循环流化床锅炉深度调峰技术难点及控制策略[J]. 中国电力, 2021, 54(5): 206-212.
[8]	李飞. 旋转雾化蒸发技术对脱硫废水和烟气的适应性研究[J]. 中国电力, 2021, 54(4): 213-220.
[9]	吴家玉, 莫华, 胡耘, 朱杰, 帅伟, 张晴, 姜岸. 京津冀及周边地区燃煤电厂煤场无组织颗粒物不同控制情景下时空变化特征[J]. 中国电力, 2021, 54(2): 182-189.
[10]	李飞, 陈海杰, 刘峰均, 谷小兵, 车广民, 白玉勇, 杨林军. 脱硫废水旋转喷雾蒸发特性实验研究[J]. 中国电力, 2021, 54(1): 188-195.
[11]	赵宏, 张发捷, 马云龙, 马宝林, 唐潇, 徐仁博, 罗通达, 李成宝, 任传明, 于洁, 孙路石. 燃煤电厂SCR脱硝氨逃逸迁移规律试验研究[J]. 中国电力, 2021, 54(1): 196-202.
[12]	赵柄, 王海刚, 胡冬, 陈坤洋, 金绪良, 殷爱鸣. 燃煤电厂碱性吸附剂脱汞性能研究[J]. 中国电力, 2020, 53(9): 208-213.
[13]	杨阳, 胡大龙, 黄倩, 许臻, 王璟, 吴火强, 王博. 火电厂废水排放控制政策法规与技术路线综述[J]. 中国电力, 2020, 53(8): 131-138.
[14]	贾西部. 石灰石-石膏湿法脱硫废水排放量深度解析[J]. 中国电力, 2020, 53(8): 139-144,163.
[15]	王晋权, 赵周明, 张志华. 低温余热闪蒸脱硫废水处理系统设计及应用[J]. 中国电力, 2020, 53(8): 151-157,181.

模态框（Modal）标题

燃煤电厂旁路烟气干燥塔控制技术开发

Development of Control Technology for Bypass Flue Gas Drying Tower of Coal-Fired Power Plant

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics