循环冷却水污垢垢样中各元素含量的机理解释

垢样中铁元素含量是判定循环冷却水装置腐蚀程度的重要标志.为了满足污垢特性预测的需要,实验设计为动态封闭式循环冷却水系统模拟垢样生成,并在模拟试验期间实时取动态水样检测其中的铁离子含量、微生物数;在线监测pH、溶解氧、腐蚀速率等.在垢样的精准分析中,以JY/T 015-1996等离子体发射光谱分析方法测得的垢样中铁离子、铜离子、有机物含量.结果表明,水中铁离子高,垢样中的铁元素检出值高,表明腐蚀程度也相对高;另外,垢样中的铜离子含量高,垢样中的有机物的含量就低,二者呈负相关.

Mechanism to Explain the Elements of Content in the Circulating Cooling Scale

Scale sample of the iron content is an important symbol of the extent of corrosion to determine the circulating cooling water installations. In order to satisfy the projected need fouling features, the experimental design for dynamic closed loop cooling water system simulation of scale-like generation, and take dynamic water samples which iron content in real time during the simulation, microbial number、pH、dissolved oxygen, corrosion rate etc. In the precise analysis, JY / T 015-1996 plasma emission spectroscopy measured in scale sample of iron ions, copper ions, organic matter content. The results show that the water has high iron, high-scale sample of the iron detection value indicates that the extent of corrosion is also relatively high; In addition, the copper ion content in the scale sample of high- lead content of organic matter, both a negative correlation.