聚环氧琥珀酸阻垢剂在纺织空调喷淋水中的应用研究

Application of Polyepoxysuccinic Acid Scale Inhibitor in Textile Air Conditioning Spray Water

采用理论分析和试验研究相结合的方法,研究了阻垢剂投加在纺织厂后喷淋水硬度、电导率、pH值及临界pH指数(pHc)的变化情况。3^(#)空调室为投加PESA阻垢剂的试验水池,5^(#)空调室为未投加阻垢剂的对比水池。加入阻垢剂有明显的增溶螯合作用,使3^(#)空调室喷淋水硬度高于5^(#),同时3^(#)空调室喷淋水pH值和电导率先上升后下降,而5^(#)空调室喷淋水pH值与电导率则是一直处于上升状态;5^(#)空调室的喷淋水从第9 d开始,pH值一直大于pHc,结垢的趋势越来越严重,3^(#)空调室喷淋水随着阻垢剂与成垢离子的不断反应,在运行21 d之后,pH值持续降低且小于pHc,水质处于不结垢稳定状态,阻垢剂具有良好的阻垢效果。

The changes of hardness,conductivity,pH value and critical pH index(PHc)of spray water after adding scale inhibitor in textile mill were studied by means of theoretical analysis and experimental research.3^(#)air conditioning room was the experimental water tank with PESA scale inhibitor,and 5^(#)air conditioning room was the comparison water tank without scale inhibitor.The addition of scale inhibitor had obvious solubilization and chelation effect,so that the hardness of spray water in 3^(#)air conditioning room was higher than 5^(#).At the same time,3^(#)pH value and conductivity first increased and then decreased,while 5^(#)pH value and conductivity always increased;5^(#)since the 9 th day,the pH value of the spray water in the air conditioning room had been greater than pHc,the water quality had become worse,and the scaling trend was more and more serious.With the continuous reaction between the scale inhibitor and the scaling ion,the pH value of the spray water in the air conditioning room continued to decrease and was less than pHc after 21 days of operation.The water quality was in a stable state of non-scaling,and the scale inhibitor had a good scale inhibition effect on the spray water.