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再生水回用循环冷却系统药剂HJ-01阻垢机理

Keywords: 再生水,循环冷却水,结垢产物,阻垢机理

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Abstract:

针对再生水回用于循环冷却系统中引起的结垢问题,进行了碳酸钙沉积实验和旋转挂片腐蚀实验,对所得的结垢产物的微观形态、元素组成以及化合物构成,分别采用扫描电子显微镜、X射线能谱仪和X射线衍射仪进行分析,探究复配药剂HJ-01在阻垢过程中的机理,并深入分析该药剂结构中官能团的阻垢特性。实验结果表明,药剂HJ-01可以通过在挂片表面形成具有保护作用的薄膜而阻垢,其阻垢机理包括晶格畸变、螯合增溶和分散作用;其中膦酸基(—PO3H2)和羟基(—OH)官能团引起晶格畸变作用;羧基(—COOH)官能团引起螯合增溶作用;而阻垢剂中的链状结构导致分散作用的产生。

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