论文部分内容阅读
以电炉余热回收中重力沉降室为研究对象,利用计算流体力学(CFD)模拟技术,通过三维稳态、k-ε紊流模型获得了沉降室各方案的系统变量分布情况。研究表明:沉降室温度分布均匀;方案A、B、C系统速度最大值分别是54.2,39.7,47 m/s,不同方案的沉降室内速度场分布具有相似性,系统速度最大值均位于出口区域;方案A、B、C中系统烟气颗粒的沉降量分别为2.609,1.776,2.300 t/d,实际工程可根据输灰方式、沉降室建设费用等因素综合考虑具体方案。
Taking the gravity sedimentation chamber for the recovery of electric furnace waste heat as the research object, the distribution of system variables of various solutions in the chamber was obtained by CFD simulation and three-dimensional steady-state and k-ε turbulence model. The results show that: the temperature in the sedimentation chamber is distributed evenly; the maximum values of the system A, B and C system velocities are 54.2, 39.7 and 47 m / s, respectively. The velocity field distribution in different schemes has similarities and the maximum system velocities lie in the exit area . The settlement of system flue gas particles in projects A, B and C are respectively 2.609, 1.776 and 2.300 t / d. The actual project can be based on factors such as ash transport mode, construction cost of settlement chamber and other factors.