The heating power of air preheater was calculated,in order to heat the room temperature air to a certain tempera ture and complete the process design target.And the related equipment structure was designed.By Workbench finite element analysis software,the numerical analysis model of flow field in air preheater was established.Thus,the flow field in the equipment was analyzed and the specific mixing and heat transfer state was studied.At the same time,the process design method was vindicated.In addition,in this paper,the influence of relative process parameters and structure design on device performance was researched.It was believed that increasing the air handing capacity will quickly reduce the outlet temperature and significantly increase the equipment resistance,but the air is heated more uniformly.When the heating power is increased,the outlet temperature and equipment resistance will gradually increase,but the uniformity of the air heating will decrease.Otherwise,baffles in the equip-ment can effectively promote the turbulence of the flow field,increase the outlet temperature and the heat transfer effect,but it will bring greater equipment resistance.
关键词
空气预热器/加热功率/工艺参数/结构设计/数值分析/流场
Key words
Air Preheater/Heating Power/Process Parameter/Structure Design/Numerical Analysis/Flow Field
维普
万方数据