防灭火三相泡沫发泡稳定及流动性能研究

发布时间：2018-06-05 07:27

本文选题：油品火灾 + 三相泡沫　；参考：《工业安全与环保》2017年11期

【摘要】：为研究油品火灾三相泡沫的发泡稳定与流动性能的关系,利用Waring-Blender方法对6种固相粉体制备三相泡沫,并分别以发泡高度、25%析液时间及表观粘度为参数,对其发泡稳定及流变性能进行表征,并通过Herschel-Bulkley方程对三相泡沫流变曲线进行拟合。实验结果表明,亲水及"两亲"粉体制备的三相泡沫具有较高的发泡高度及稳定性,疏水粉体制备的三相泡沫的发泡及稳定性能不足;流变测试结果显示三相泡沫属于屈服-假塑性流体且流变本构方程与Herschel-Bulkley方程拟合较好,其中亲水及"两亲"粉体制备的三相泡沫屈服-假塑性流体性质较疏水粉体制备的明显,表观粘度较大,流动性不足。
[Abstract]:In order to study the relationship between foaming stability and flow performance of three phase foam in oil fire, three phase foam was prepared by Waring-Blender method, and the foaming stability and rheological properties were characterized by the foaming height, 25% solution time and apparent viscosity, and the three-phase foam flow was carried out through the Herschel-Bulkley equation. The experimental results show that the three-phase foam prepared by the hydrophilic and "two parent" powder system has high foaming height and stability, the foaming and stability of the three-phase foam prepared by the hydrophobic powder system is insufficient, and the rheological test results show that the three phase foam belongs to the yield pseudoplastic fluid and the rheological constitutive equation and the Herschel-Bulkley equation. The fitting is better. The properties of the three phase foam yield pseudoplastic fluid prepared by the hydrophilic and "two parent" powder system are more obvious than those of the hydrophobic powder system, and the apparent viscosity is larger and the fluidity is insufficient.
【作者单位】：后勤工程学院军事供油工程系;重庆大学城市建设与环境工程学院;
【基金】：国家自然科学基金(51574254) 国家重点专项(2017YFC0804705) 重庆市科技计划项目(CSTC 2014yykf B90001)
【分类号】：TE88;TQ569

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