张振兴;刘永启;高振强;刘瑞祥;
1:山东理工大学交通与车辆工程学院
摘要：为了选用合适的蓄热陶瓷体填充乏风氧化装置氧化床,首先对方形、圆管形和六边形蓄热陶瓷体的几何结构进行理论分析,得出特征长度对蓄热陶瓷体孔隙率和比表面积的影响规律。然后利用FLUENT软件对方形、圆管形和六边形蓄热陶瓷体进行模拟,得出在相同孔密度和开孔率条件下,选用方形孔可以获得较好的蓄热能力,选用圆管形、六边形孔可以降低其压强损失。在同孔隙率、比表面积和当量直径条件下,方形陶瓷体的阻力损失较低,六边形陶瓷体的传热效率较高。
关键词： 乏风;;蜂窝陶瓷;;传热;;氧化床;;压强损失
Abstract: In order to choose an appropriate
ceramic regenerator filled in regenerative oxidation bed of the thermal reverse
flow reactor,firstly the geometric structures of square,tube-shaped,and
hexagonal ceramic regenerators were analyzed and investigated theoretically and
effects of ceramic regenerator′s porosity and ratio surface area were obtained under the
characteristic length of the ceramic regenerator.And then these types of
ceramic regenerators were simulated by using Fluent software,the results were
that the square ceramic regenerator have a better regenerative ability while
the types of tube-shaped,hexagonal honeycomb ceramic regenerator can reduce the
pressure loss,concerning the same hole density and porosity.The resistance in a
square ceramic regenerator is lower and heat transfer efficiency in a hexagonal
ceramic regenerator is better under the conditions of the same
porosity,specific surface area and equivalent diameter.
Keywords: Ventilation Air Methane;Ceramic
Regenerator;Heat Transfer;Regenerative Oxidation Bed;Pressure Drop
基金项目: 国家(863)高技术研究发展计划重点项目(2009AA063202);
山东省自然科学基金(ZR2009FQ023)
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