不锈钢螺旋板式浓硫酸冷却器的阳极保护

中国腐蚀与防护学报

2002, Vol. 22

Issue (3): 133-137

研究报告

本期目录 | 过刊浏览

不锈钢螺旋板式浓硫酸冷却器的阳极保护

徐暾家;李锦山;郑建国

兰州西固区合水北路3号化机院

STUDY ON ANODIC PROTECTION IN STAINLESS STEELSPIRAL PLATE COOLER FOR CONCENTRATED SULFURIC ACID

Dunjia Xv;Jinshan Li;Jianguo Zheng

兰州西固区合水北路3号化机院

全文: PDF(179 KB)

摘要: 根据欧姆定律和克希荷夫定律推导了在螺旋板式冷却器中沿宽度方向电位梯度的变化与螺旋板表面电流密度关系的微分方程式，进而得出沿螺旋板宽度方向的电位分布方程，并通过模拟试验予以验证.依此设计制造的一台阳极保护螺旋板式浓硫酸冷却器，经工业应用试验，显示了良好的耐蚀性.

关键词 ：阳极保护, 螺旋板式冷却器

Abstract：According to Ohm's law and Kirchhoff's current law, a differential equation,which related the potential gradient along the width of the spiral plate cooler to the current density at the surface of spiral plate,wa s deduced.By means of a spiral cathode,assuming the spiral plate was passivated, the equation for the potential distribution along the width of spiral was also f ounded.After measuring the specific resistance of concentrated sulphuric acid an d the passive current density of stainless steel in the acid,the potential drop can be calculated.The calculated result was verified by simulated experiments.An industrial cooler was designed according to the present study.After application in situ,it shows the satisfactory anti-corrosive capacity.

Key words： anodic protection spiral plate cooler

收稿日期: 2000-10-12

ZTFLH:

TG174.41

通讯作者: 徐暾家

Corresponding author: Dunjia Xv

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引用本文:

徐暾家; 李锦山; 郑建国 . 不锈钢螺旋板式浓硫酸冷却器的阳极保护[J]. 中国腐蚀与防护学报, 2002, 22(3): 133-137 .
Dunjia Xv, Jinshan Li, Jianguo Zheng. STUDY ON ANODIC PROTECTION IN STAINLESS STEELSPIRAL PLATE COOLER FOR CONCENTRATED SULFURIC ACID. J Chin Soc Corr Pro, 2002, 22(3): 133-137 .

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2002/V22/I3/133

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[1]	周庆初;曹铁梁;季诚建. 奥氏体不锈钢在高温磷酸浓溶液中的阳极极化行为[J]. 中国腐蚀与防护学报, 1995, 15(1): 7-14.

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