• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of nanomechanics science and technology >MODEL OF SCALE DEPOSITION WITH MAGNETIC WATER TREATMENT
【24h】

MODEL OF SCALE DEPOSITION WITH MAGNETIC WATER TREATMENT

机译：磁水处理规模沉积模型

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Analysis of the behavior of nanosized colloidal particles in the oversaturated solution was used to justify a physical model of scaling reduction by magnetic treatment of the water flow. It was shown that as a result of deformation of a double electric layer the colloidal solution loses its stability and coagulation of nanosized colloidal particles begins. Due to increased effective radius of the nanoparticle curvature the solution becomes strongly oversaturated relative to the generated aggregates, thereby accelerating crystallization of the dissolved salts on the particles. The nano-object interphase layer reduces the energy of generation of critical nuclei (the dimensional effect) and their size. Since coagulation tends to decrease the concentration of critical nuclei in the solution, such decrease should be replenished by homogeneous generation of new nuclei. This leads to additional increase in the concentration of suspended particles and enhances the anti-scaling effect. It is shown that the crystallized dissolved salts mostly deposit on the suspended nanopar-ticles not only due to increase of their total surface, but also because the mass transfer coefficient on suspended particles is by four orders of magnitude greater than on the wall. The mathematical model built on the basis of all physical processes allowed making quantitative assessment of the anti-scaling effect in real heat and power plants.
机译：通过对过饱和溶液中纳米胶体颗粒行为的分析，证明了通过磁处理水流来减少结垢的物理模型是合理的。结果表明，由于双电层的变形，胶体溶液失去了稳定性，纳米胶体颗粒开始凝结。由于纳米颗粒曲率的有效半径增加，溶液相对于所产生的聚集体变得过饱和，从而加速了颗粒上溶解盐的结晶。纳米物体相间层减少了临界核的产生能量（尺寸效应）及其尺寸。由于凝结会降低溶液中关键核的浓度，因此应通过均匀生成新核来补充这种减少。这导致悬浮颗粒浓度的进一步增加，并增强了防垢效果。结果表明，结晶的溶解盐主要沉积在悬浮的纳米颗粒上，这不仅是由于其总表面积的增加，而且还因为悬浮颗粒上的传质系数比壁上的传质系数大了四个数量级。建立在所有物理过程基础上的数学模型可以定量评估实际热电厂中的防垢效果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号