火电厂中水中氨氮对循环冷却系统腐蚀的研究
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摘要
研究了中水回用于火力发电厂作循环冷却水时,水中氨氮组分对循环冷却系统腐蚀的影响。采用A3钢和304不锈钢作为实验试样,通过失重法和动电位连续扫描法对A3钢试样和304钢试样分别在以下四个条件进行腐蚀试验:(1)2～70mg/L氨氮溶液;(2)30～45℃氨氮溶液;(3)pH值7.0～9.0氨氮溶液;(4)添加2～20mg/L MK-300缓蚀阻垢剂的氨氮溶液。结果表明,A3钢试样和304钢试样的腐蚀速度随氨氮溶液浓度增加和溶液温度升高逐渐增大、随氨氮溶液pH值升高逐渐减小、随缓蚀剂浓度增加先迅速减小,后略有上升;腐蚀电位随上述条件变化也发生变化。
Studied the influence of ammonia nitrogen in reclaimed water on the corrosion of circulating cooling system when reclaimed water was reused as circulating cooling water in fossil fuel power plants.The test sample are A3 steel and 304 stainless steel.Two methods are adopted,one is weight loss method,the other is potentiodynamic continuous scanning method.The experimental conditions include,(1)2～70mg/L ammonia nitrogen solution,(2)30～45℃ammonia nitrogen solution,(3)pH7.0～pH9.0 ammonia nitrogen solution,(4)including 2～20mg/L MK-300 corrosion and scale inhibitor ammonia nitrogen solution. The experiment outcomes indicate that corrosion speed of A3 sample and 304 sample increase along with the increase of concentration of ammonia nitrogen solution and the rise of the temperature of ammonia nitrogen solution,and decrease along with the rise of pH value of ammonia nitrogen solution,and at first decrease rapidly along with the increase of corrosion and scale inhibitor concentration and then increase.slightly. Corrosion potential also change along with these conditions.
Studied the influence of ammonia nitrogen in reclaimed water on the corrosion of circulating cooling system when reclaimed water was reused as circulating cooling water in fossil fuel power plants.The test sample are A3 steel and 304 stainless steel.Two methods are adopted,one is weight loss method,the other is potentiodynamic continuous scanning method.The experimental conditions include,(1)2～70mg/L ammonia nitrogen solution,(2)30～45℃ammonia nitrogen solution,(3)pH7.0～pH9.0 ammonia nitrogen solution,(4)including 2～20mg/L MK-300 corrosion and scale inhibitor ammonia nitrogen solution. The experiment outcomes indicate that corrosion speed of A3 sample and 304 sample increase along with the increase of concentration of ammonia nitrogen solution and the rise of the temperature of ammonia nitrogen solution,and decrease along with the rise of pH value of ammonia nitrogen solution,and at first decrease rapidly along with the increase of corrosion and scale inhibitor concentration and then increase.slightly. Corrosion potential also change along with these conditions.
引文
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[39] 王翔,王佩璋.废(污)水再生回用于火电厂水系统的实践和经验.山西电力技术,1997,17(3):25～30
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[41] 顾小红,黄种买,虞启义.我国城市污水回用作火电厂循环冷却水的研究.电 力环境保护,2003,19(3):35～37
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[46] 刘永辉.电化学测试技术.北京:北京航空学院出版社,1987,63～154
[2] 李奇.水资源现状及其未来预测.四川地质学报,1997,17(3):224～230
[3] Brown L.,Halweil B.China’s water shortage could shake world food security.World watch,1998,11(4):10
[4] 李本高.现代工业水处理技术与应用.北京:中国石化出版社,2004.526
[5] Jules B Van Lie,Gatze Lettmga.Appropriate technologies for effective management of industrial and domestic waste water:the decentralized approach.Water Science and Technology,1999,40(7):171～183
[6] Wiesinghe Bandupala,Kaye Ralph B,Fell Cristopher Joseph D.Reuse of treated sewage efluent for cooling water makeup:a feasibility study and a pilot plant study.Water Science and Technology,1996,33(10):363～369
[7] 周彤,鲍宪技.城市污水回用于循环冷却水时氨氮去除.工业用水与废水,2000,31(6):9～11
[8] 王祥荣.生态与环境.南京:东南大学出版社,2000,19～20
[9] 钱易,唐孝炎.环境保护与可持续发展.北京:高等教育出版社,2000,6～8
[10] 江世竹.贫水地区用水政策与污水回用.环境保护,1996,13(3):13～16
[11] 叶雯,刘美南.我国城市污水再生利用的现状与对策.中国给水排水,2002,18(12):31～33
[12] 杨淑英,张增强.我国水资源面临的问题与对策.环境保护,1998,15(5):6～8
[13] 徐新华,赵伟荣.水与废水的臭氧处理.北京:化学工业出版社,2003,15～25
[14] 韩剑宏.中水回用技术及工程实例.北京:化学工业出版社,2004.4～5,246
[15] 董辅祥,董欣东.节约用水原理及方法指南.中国建筑工业出版,1995,15～16
[16] 籍国东,姜兆春.我国污水资源化的现状分析与对策讨论.环境科学展,1999, 1(5):85～95
[17] 肖锦.城市污水处理及回用技术.北京:化学工业出版社,2002.5
[18] 周彤.污水回用决策与技术.北京:化学工业出版社,2001.10
[19].D.J.Golden et al.Water Reuse.Ann Arbor Science Publishers Inc.1988
[20] 泰华联,李世锋.21 世纪我国面临水资源危机及发展策略.东北水利水电,2002,20(11):44～45
[21] 刘柏颉,张金同.我国水资源现状与污水回用对策.黑龙江环境通报,2001,25(1):18～20
[22] 董辅祥.城市与工业节约用水理论.中国建筑工业出版社,2000,64～66
[23] 孙丽欣.水处理工程应用试验.哈尔滨工业大学出版社,2002.3
[24] 张玉先,张春妍.改善饮用水水质的处理技术及经济分析.给水排水,1998,24(12):15～19
[25] 张杰.水资源、水环境与城市污水再生回用.给水排水,1998,24(8):1
[26] 冯尚友.水资源持续利用与管理导论.科学出版社,2000,23～24
[27] 周云.周家渡水厂深度处理工程和臭氧技术的应用.上海水务,2001(3):20～23
[28] Richard J.Strittmatter,et al.Reuse of Reclaimed Municipal Waste Water Cooling Tower Make-up.IWC-93-7
[29] Robert Abdulmohsen D.Controlling microbiological fouling in a refinery cooling water system using wewage treatment plant effluent as makeup.International Water Conference,1996(25):254～266
[30] Exall,Kirsten.A review of water reuse and recycling, with reference to Canadian practice and potential:2.Applications.Water Quality Research Journal of Canada,2004,39(1):13～28
[31] Thomas A Shaw.Palo Verder nuclear generating station secondary sewage effluent as cooling water source.International Water Conference,1990(2):26～34
[32] HumpHries T H.The use of sewage plant effluent for use as powerstation cooling water.Water research,1997,(11):217～223
[33] 张国斌.火力发电厂中水回用技术与应用.中国给水排水,2005,21(7):89～91
[34] 潘晓丽,尹连庆,刘勇,等.城市污水经处理回用作电厂循环冷却水的工程应用.电力科学与工程,2004,(1):46～48,53
[35] 杨宝红,汪德良,王正江,等.火力发电厂废水处理与回用. 北京:化学工业出版社,2006.195
[36] Yang Baohong,et al.Applicaition and development of waste water reuse technology in thermal power plant of China.Proceeding of WEC 2004,Session FB:Power & Energy,2004
[37] 王芳.论城市污水回用火电厂冷却系统综合效益.甘肃电力,2000,(1)
[38] 葛春鹏,李少春.利用城市污水作电站循环冷却水补充水的处理工艺试验研究. 西北电力技术,2001(3):4～8
[39] 王翔,王佩璋.废(污)水再生回用于火电厂水系统的实践和经验.山西电力技术,1997,17(3):25～30
[40] 虞启义,吴俊芬.二级处理出水回用作循环冷却水的可行性.中国给水排水,2004,20(3):92～94
[41] 顾小红,黄种买,虞启义.我国城市污水回用作火电厂循环冷却水的研究.电 力环境保护,2003,19(3):35～37
[42] 荀晓东,黄种买,虞启义,等.城市二级污水回用作电厂循环冷却水铜管腐蚀研 究.化工进展,2004,23(3):304～306
[43] 陈颖敏.热力设备腐蚀与防护.北京:航空工业出版社,1999.11:5
[44] 中国腐蚀与防护学会《金属腐蚀手册》编辑委员会.金属腐蚀手册.上海科学技术出版社,1987
[45] 中国腐蚀与防护学会.腐蚀试验方法与防腐蚀检测技术.北京:化学工业出版社,1996,32～34
[46] 刘永辉.电化学测试技术.北京:北京航空学院出版社,1987,63～154