“协调EDTA洗炉”新法的研究

中国腐蚀与防护学报

1985, Vol. 5

Issue (4): 270-276

研究报告

本期目录 | 过刊浏览

“协调EDTA洗炉”新法的研究

张柏林

西南电业管理局试验研究所

COORDINATED EDTA CLEANING OF BOILER--A NEW TECHNIQUE

Zhang Bolin The Research Department of Southwest Management Bureau of Power Industry

全文: PDF(513 KB)

摘要: 高温下固体铁垢(Fe_3O_4、Fe_2O_3、FeO)—与 EDTA 溶液的反应,不仅是一个络合反应,同时还伴随酸碱反应。控制适当的条件,可以使反应体系随垢的不断洗脱溶解,pH 值自动上升.实现了洗炉液从弱酸性开始,弱碱性钝化 pH 结束的洗垢、钝化一步完成新技术,称之为“协调 EDTA 洗炉”新法。此法具有工艺及系统简单、操作方便、用水量少、工期短、对环境污染小等优点。

Abstract：The reaction of boiler scale with EDTA aqueous solution under elevated temperature is a complex reaction,but is an acid-base reaction as well. By controlling appropriate conditions,the pH value of the cleaning liquid may automatically rise,from weakly acidic to weakly basic state for the descaling of scale.A new technique called coordinated EDTA cleaning of boiler has been worked out which completes boiler cleaning and inactivation in one step. This technique for boiler cleaning has the following advantages: (1)the cleaning system is simple and more convenient to control, (2)there is less water consumed,(3)it shortens cleaning time, (4)pollution is minimized.

收稿日期: 1985-08-25

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引用本文:

张柏林. “协调EDTA洗炉”新法的研究[J]. 中国腐蚀与防护学报, 1985, 5(4): 270-276.
. COORDINATED EDTA CLEANING OF BOILER--A NEW TECHNIQUE. J Chin Soc Corr Pro, 1985, 5(4): 270-276.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1985/V5/I4/270

[1] 杨德俊,《络合滴定的理论和运用》,国防工业出版社,(1965)
[2] Muvphy,V.P.,Combustion,50(11) ,(1979)
[3] 和田洋六,酸洗净废液处理,火力原子力发电,28(8) ,(1977)

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