采用氧化性水工况控制超临界、超超临界直流炉腐蚀的铁-水体系电位-pH图
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- 英文论文题名：The potential-pH chart of the ferrum-water system for the corrosion control of the oxidative water condition for super-critical units
- 论文作者：罗玉英 ; 谢学军 ; 张文 ; 晏敏
- 英文论文作者：Luo Yu-yin ; Xie Xue-jun ; Zhang Wen ; Yan Min ; Datang Xinyang Huayu Power Generating Corporation ; Ltd. ; -School of Power and mechanical engineering of Wuhan university ; Reservoir Territory Department of Changjiang Water Resource Committee
- 年：2008
- 作者机构：大唐信阳华豫发电有限责任公司;武汉大学动力与机械学院;长江水利委员会库区处;
- 论文关键词：氧化性水工况 ; 铁-水体系 ; 电位-pH图
- 英文论文关键词：Oxidative water condition ; Ferrum-water system ; Potential-pH chart
- 会议召开时间：2008-07-01
- 会议录名称：第十五届全国缓蚀剂学术讨论会论文集
- 语种：中文
- 分类号：TK228;TG178
- 学会代码：ZGHA
- 会议名称：第十五届全国缓蚀剂学术讨论及应用技术经验交流会
- 会议地点：中国辽宁沈阳
- 主办单位：中国腐蚀与防护学会缓蚀剂专业委员会
- 学会名称：中国腐蚀与防护学会缓蚀剂专业委员会
- 页数：3
- 文件大小：233k
- 原文格式：O
- 会议级别：全国
摘要
目前超临界、超超临界直流炉大都采用氧化性水工况来控制腐蚀,要求给水中铁的含量<10μg/L;以往的电位-pH图都是以10~(-6)mol/L(对铁而言是56μg/L)作为金属发生腐蚀与否的界限而绘制的。显然,以往所作的铁-水体系的电位-pH图与超临界、超超临界直流炉采用氧化性水工况控制钢铁腐蚀的要求不一致,因而改以即10μg/L作为钢铁发生腐蚀与否的界限来绘制铁-水体系的简化电位-pH平衡图。
The super-critical once through boiler adopts oxidative water condition for the corrosion control presently,and it is required that the ferrum ion content in the supplied water should be lower than 10 μg/L.In the past time,the potential-pH chart of ferrum- water system was drawn in which ferrum ion content was chosen as 10~(-6) mol/L(namely 56μg/L)in the balance calculation.To unify the corrosion controlling of the oxidative water condition,the potential-pH chart of ferrum-water system is drawn in which ferrum ion content is chosen as 10~(-6.75) mol/L(namely 10 μg/L)in the balance calculation.
The super-critical once through boiler adopts oxidative water condition for the corrosion control presently,and it is required that the ferrum ion content in the supplied water should be lower than 10 μg/L.In the past time,the potential-pH chart of ferrum- water system was drawn in which ferrum ion content was chosen as 10~(-6) mol/L(namely 56μg/L)in the balance calculation.To unify the corrosion controlling of the oxidative water condition,the potential-pH chart of ferrum-water system is drawn in which ferrum ion content is chosen as 10~(-6.75) mol/L(namely 10 μg/L)in the balance calculation.
引文
[1]龚洵洁.热力设备的腐蚀与防护[M].北京:中国电力出版社,1998.
[2]窦照英.电力工业的腐蚀与防护(第一版)[M].北京:化学工业出版社,1995.
[3]陈志和.电厂化学设备及系统[M].北京:中国电力出版社,2006.
[2]窦照英.电力工业的腐蚀与防护(第一版)[M].北京:化学工业出版社,1995.
[3]陈志和.电厂化学设备及系统[M].北京:中国电力出版社,2006.