燃煤电厂脱硫废水热法零排放技术热成本分析

doi:10.11930/j.issn.1004-9649.201910135

中国电力 ›› 2020, Vol. 53 ›› Issue (7): 184-188,196.DOI: 10.11930/j.issn.1004-9649.201910135

• 燃煤机组水分回收及处理关键技术专栏 • 上一篇下一篇

燃煤电厂脱硫废水热法零排放技术热成本分析

赵舒然^1,2, 韩小渠², 张丹², 刘继平¹

1. 西安交通大学热流教育部重点实验室，陕西西安 710049;
2. 西安交通大学动力工程多相流国家重点实验室，陕西西安 710049

收稿日期:2019-10-20 修回日期:2020-03-05 发布日期:2020-07-05
作者简介:赵舒然(1995—)，男，硕士研究生，从事热力系统经济性诊断理论、汽液两相流理论研究，E-mail: 1346587682@qq.com;刘继平(1971—)，男，通信作者，教授，博导，从事热力系统经济性诊断理论、汽液两相流理论和热声理论研究，E-mail: liujp@mail.xjtu.edu.cn
基金资助:
国家重点研发计划资助项目(2018YFB0604303)；国家自然科学基金资助项目(51806159)

Thermal Cost Analysis on Thermal Zero Discharge Technology for Flue Gas Desulfurization (FGD) Wastewater of Coal-Fired Units

ZHAO Shuran^1,2, HAN Xiaoqu², ZHANG Dan², LIU Jiping¹

1. MOE Key Laboratory of Thermal Fluid Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
2. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Received:2019-10-20 Revised:2020-03-05 Published:2020-07-05
Supported by:
This work is supported by the National Key Research and Development Program of China (No.2018YFB0604303) and National Natural Science Foundation of China (No.51806159)

摘要/Abstract

摘要： 采用不同热源驱动多效蒸馏（MED）或多级闪蒸（MSF）系统，对燃煤电厂湿法脱硫工艺废水进行处理，有望实现废水的低成本零排放。针对“预处理—浓缩—蒸发脱盐”工艺中已经过预处理的脱硫废水，提出5种不同的集成方案以实现“浓缩—深度脱盐”。分别建立了各方案的热经济性分析模型，定量研究了造水比和热成本的变化规律。结果表明：从热源角度分析，厂用汽热源成本较高，烟气成本低廉而泵功成为主要成本；从提浓与脱盐工艺角度，采用MED-TVC（multi-effect distillation-thermal vapor compressor）方案可提高造水比10%~100%，降低热成本10%~50%，但是降膜蒸发结构的MED对废水盐浓度的波动比较敏感，且不适合处理高浓度废水，强制循环蒸发结构可改善该问题；MSF工艺对盐浓度具有更强的适应性，采用烟气供热的成本为0.3~1.2元/t。

关键词: 脱硫废水, 零排放, MED, MSF, 热成本, 经济性

Abstract: It is expected to achieve low-cost zero discharge of FGD wastewater by using MED or MSF technology driven by different heat sources of the power plant. In this paper, five different combinations of schemes are proposed for the desulfurization wastewater pretreated in the “pretreatment-concentration-evaporation desalination” process to achieve the target of "concentration-deep desalination". The thermal economic analysis model of each scheme was established respectively, and the change rules of gained output ratio (GOR) and heat cost was also quantitatively studied. The results show that as far as the heat source is concerned, the cost of auxiliary steam is higher, while the cost using the waste heat of the flue gas is cheaper with the pumping power becoming the major cost contributor. With the TVC device installed, the GOR of MED can be improved by 10%~100%, and the heat cost can be reduced by about 10%~50%. However, in addition to its high sensitivity to fluctuations in wastewater salt concentration, the structure of the MED structure is not suitable for treating high salt concentration wastewater. In contrast, the MSF structure demonstrates high adaptability to salt concentration. The heating cost of using flue gas heating is about 0.3~1.2 yuan/t.

Key words: desulfurization wastewater, zero discharge, MED, MSF, thermal cost, economic deposition

赵舒然, 韩小渠, 张丹, 刘继平. 燃煤电厂脱硫废水热法零排放技术热成本分析[J]. 中国电力, 2020, 53(7): 184-188,196.

ZHAO Shuran, HAN Xiaoqu, ZHANG Dan, LIU Jiping. Thermal Cost Analysis on Thermal Zero Discharge Technology for Flue Gas Desulfurization (FGD) Wastewater of Coal-Fired Units[J]. Electric Power, 2020, 53(7): 184-188,196.

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https://www.electricpower.com.cn/CN/Y2020/V53/I7/184

参考文献

[1] 国家统计局. 中国统计年鉴2018[M]. 北京: 中国统计出版社, 2018.
[2] 管一明. 燃煤电厂烟气脱硫废水处理[J]. 电力环境保护, 1998, 14(1): 38-44
[3] 高原, 陈智胜. 新型脱硫废水零排放处理方案[J]. 华电技术, 2008, 30(4): 73-75
GAO Yuan, CHEN Zhisheng. New treatment scheme of zero discharge for deSO_x wastewater[J]. Huadian Technology, 2008, 30(4): 73-75
[4] 禾志强, 祁利明. 火力发电厂烟气脱硫废水处理工艺[J]. 水处理技术, 2010, 36(3): 133-135
HE Zhiqiang, QI Liming. Wastewater treatment process of flue gas desulfurization in the power plant[J]. Technology of Water Treatment, 2010, 36(3): 133-135
[5] 吴怡卫. 石灰石-石膏湿法烟气脱硫废水处理的研究[J]. 中国电力, 2006, 39(4): 75-78
WU Yiwei. Study on the wastewater treatment in limestone-gypsum wet FGD process[J]. Electric Power, 2006, 39(4): 75-78
[6] 马双忱, 于伟静, 贾绍广, 等. 燃煤电厂脱硫废水处理技术研究与应用进展[J]. 化工进展, 2016, 35(1): 255-262
MA Shuangchen, YU Weijing, JIA Shaoguang, et al. Research and application progresses of flue gas desulfurization(FGD) wastewater treatment technologies in coal-fired plants[J]. Chemical Industry and Engineering Progress, 2016, 35(1): 255-262
[7] 魏明波, 胡溪, 杨万强, 等. 燃煤电厂脱硫废水处理工艺试验研究[J]. 洁净煤技术, 2017, 23(1): 95-99
WEI Mingbo, HU Xi, YANG Wanqiang, et al. Experimental study on concentration treatment process of desulfurization waste water in coal-fired power plant[J]. Clean Coal Technology, 2017, 23(1): 95-99
[8] 崔丽, 陈颖敏. 石灰石-石膏湿法脱硫废水的处理[J]. 吉林电力, 2008, 36(2): 16-19
CUI Li, CHEN Yingmin. Wastewater treatment of limestone-gypsum wet flue gas desulfurization process[J]. Jilin Electric Power, 2008, 36(2): 16-19
[9] 韦国平. 对火电厂脱硫废水进行单独处理的必要性[J]. 热力发电, 2006, 35(9): 53-54
WEI Guoping. The necessity of carrying out individual treatment for waste water from desulfuration in thermal power plants[J]. Thermal Power Generation, 2006, 35(9): 53-54
[10] HAN X Q, YAN J J, KARELLAS S, et al. Water extraction from high moisture lignite by means of efficient integration of waste heat and water recovery technologies with flue gas pre-drying system[J]. Applied Thermal Engineering, 2017, 110: 442-456.
[11] 芦伟. 脱硫废水零排放工艺路线研究[J]. 山东化工, 2016, 45(7): 145-146
LU Wei. Technology research of desulfurization wastewater zero emissions[J]. Shandong Chemical Industry, 2016, 45(7): 145-146
[12] 刘海洋, 夏怀祥, 江澄宇, 等. 燃煤电厂湿法脱硫废水处理技术研究进展[J]. 环境工程, 2016, 34(1): 31-35
LIU Haiyang, XIA Huaixiang, JIANG Chengyu, et al. Research advances in wet flue gas desulfurization wastewater treatment technology in coal-fired power plant[J]. Environmental Engineering, 2016, 34(1): 31-35
[13] 付岚. 燃煤电厂湿法脱硫废水零排放处理技术进展[J]. 中国资源综合利用, 2018, 36(4): 44-45, 48
FU Lan. Development of zero discharge treatment technology for wet desulfurization wastewater in coal-fired power plant[J]. China Resources Comprehensive Utilization, 2018, 36(4): 44-45, 48
[14] 王佩璋. 火力发电厂全厂废水零排放[J]. 电力环境保护, 2003, 19(4): 25-29
WANG Peizhang. Discussion on zero-discharge of waste water in thermal power plant[J]. Electric Power Environmental Protection, 2003, 19(4): 25-29
[15] 郜瑞莹, 林建中. 燃煤电厂脱硫废水零排放工艺路线研究[J]. 南方能源建设, 2018, 5(1): 107-112
GAO Ruiying, LIN Jianzhong. Research on zero liquid discharge FGD wastewater treatment technology in coal-fired power plant[J]. Southern Energy Construction, 2018, 5(1): 107-112
[16] 袁劲梅, 朱来松, 曲鹏, 等. 一种脱硫废水零排放处理装置及方法: 中国, CN103626331A[P]. 2013.
[17] 龙国庆. 燃煤电厂湿法脱硫废水蒸发结晶处理工艺的选择[J]. 中国给水排水, 2013, 29(24): 5-8
LONG Guoqing. Selection of evaporation crystallization treatment process of wastewater from wet FGD in coal-fired power plant[J]. China Water & Wastewater, 2013, 29(24): 5-8
[18] 连坤宙, 胡特立, 王永前, 等. 燃煤电厂脱硫废水预处理装置设计与中试研究[J]. 中国电力, 2018, 51(6): 166-171
LIAN Kunzhou, HU Teli, WANG Yongqian, et al. Pretreatment device design and pilot application of desulfurization wastewater in coal-fired power plants[J]. Electric Power, 2018, 51(6): 166-171
[19] AL-MUTAZ I S, WAZEER I. Comparative performance evaluation of conventional multi-effect evaporation desalination processes[J]. Applied Thermal Engineering, 2014, 73(1): 1194-1203.
[20] BORSANI R, REBAGLIATI S. Fundamentals and costing of MSF desalination plants and comparison with other technologies[J]. Desalination, 2005, 182(1/2/3): 29-37.

燃煤电厂脱硫废水热法零排放技术热成本分析

Thermal Cost Analysis on Thermal Zero Discharge Technology for Flue Gas Desulfurization (FGD) Wastewater of Coal-Fired Units

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燃煤电厂脱硫废水热法零排放技术热成本分析

Thermal Cost Analysis on Thermal Zero Discharge Technology for Flue Gas Desulfurization (FGD) Wastewater of Coal-Fired Units

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