淬火槽搅拌器性能模拟及槽底均流设计  

Performance Simulation of Quenching Tank Agitator and Optimization Design of Bottom Structure

作　　者：秦明臣 龚奇龙 张永宽 QIN Mingchen;GONG Qilong;ZHANG Yongkuan(AVIC CAPDI International Equipment Co.,Ltd,Beijing 102206,China)

机构地区：[1]中航工程集成设备有限公司,北京102206

出　　处：《工业炉》2020年第2期25-28,共4页Industrial Furnace

摘　　要：采用RNG k-ε湍流模型对淬火槽全系统进行了数值模拟,并结合MRF模型对三叶船用螺旋桨搅拌器运行特性进行了计算。分析了槽内液体流动形态、叶轮转速、槽深等参数对系统循环流量及叶轮输出功率的影响,提出了一种等压槽底均流设计方案。模拟结果显示等压槽底设计方案能取得更好的流场均匀性。RNG k-ε turbulence model was emplo yed to simulate the entire structure of the bottom spray quenching tank, and the MRF model was adopted to calculate the performance of the three-bladed marine propeller. After analyzing the effects on the system circulation flow and the impeller output power caused by flow types in the quenching tank, the stirring speed and the height of the tank, a type of isobaric bottom structure design was proposed. The simulation result shows that the isobaric bottom structure design can obtain a more uniform velocity distribution at the bottom zone.

关 键 词：淬火槽 数值模拟 搅拌器 流场优化 

分 类 号：TG156.3[金属学及工艺—热处理]