电化学法处理冷却循环水技术的应用

摘要

The currenttreatment of circulating cooling water is limited to descaling with little scale inhibition,which israrely reported. This study proposed a new technology of electrochemical treatment of circulating cooling water by using simulating the treatment of circulating water by a high frequency electric field in electrolytic system. Optimal operational conditions were obtained by adjusting electrochemical parameters , and the mechanism of the process was analyzed. Based on the experimental data,the device was applied on a pilot scale at a facility. The results confirmed the optimal experimental conditions,with the current of 16 A,voltage of 5 V,plate spacing of 75 mm, and flow of 1000m3/h. The result suggested that this process had excellent scale inhibition convenience and efficiency.%目前冷却循环水的处理方式主要局限在除垢方面且除垢效果有限，在阻垢方面少有报道。为了解决这一问题，本文提出了一种电化学法处理冷却循环水的新技术。采用自制电解系统对模拟循环水进行高频电场处理，通过调整电化学参数得到了最佳工艺条件，并深入分析了工艺机理。在实验研究基础上本装置在某企业进行了中试，进一步验证及完善了工艺条件。得出当电流为16 A、电压为5 V、极板间距为75 mm、流量为1000 m3/h时处理效果最佳。研究结果表明：该工艺具有极佳的阻垢效果；可使老化水垢松软便于剥离去除，表现出很好的除垢效果；可有效改变沉积物的晶型；方便高效，绿色环保。