某些化工冶金装置中湍流流场的研究

CIESC Journal

某些化工冶金装置中湍流流场的研究

马恩祥,钱占民,蔡志鹏,刘德华,严子纲,杨剑青

中国科学院化工冶金研究所 ,中国科学院化工冶金研究所 ,中国科学院化工冶金研究所 ,中国科学院化工冶金研究所 ,中国科学院化工冶金研究所 ,中国科学院化工冶金研究所

出版日期:1982-09-25 发布日期:1982-09-25

Study on Turbulence Field in Equipment for Chemical Metallurgy

Ma Enxiang, Qian Zhanmin, Cai Zhipeng, Liu Dehua, Yan Zigang and Yang Jianqing Institute of Chemical Metallurgy Academia Sinica

Online:1982-09-25 Published:1982-09-25

摘要/Abstract

摘要： 本文主要叙述了用DISA热线风速仪对下列三种装置中湍流流场的研究.(1)喷嘴:实验表明,在自由射流不同横截面上,(?)、（?）和ε_r以无因次坐标表示,均具有相似性,并求得等(?)(?)和等ε_(max)直线方程.(2)流化床:从流化床中(?)和ε的分布曲线可以看出,在分布板区域,这三者变化很大,对传质、传热有利.(3)顶燃式热风炉:由实验结果看出,一种改进的顶燃式热风炉的速度场和湍流场都是非常均匀的,因而可以延长炉龄、提高热利用率和节省能源.

Abstract: Study on turbulence field by means of DISA hot wire anemometry is described for: 1. Nozzle: time-averaged velocity, turbulent fluctuation velocity and turbulence intensity are shown to possess similarity when represented on dimen-sionless coordinates, and linear correlations were obtained for maximum turbulent fluctuation velocity and maximum turbulence intensity. 2. Fluidized Bed: time-averaged velocity, turbulent fluctuation velocity and turbulence intensity vary dramatically in distributor plate zone, which therefore defines a region of high mass and heat transfer. 3. Top-Fired Hot Stove: velocity and turbulence fields for a proposed design show a high degree of uniformity, which could be relied upon for prolonged stove life, high thermal efficiency, and energy saving.

马恩祥,钱占民,蔡志鹏,刘德华,严子纲,杨剑青. 某些化工冶金装置中湍流流场的研究 [J]. CIESC Journal.

Ma Enxiang, Qian Zhanmin, Cai Zhipeng, Liu Dehua, Yan Zigang and Yang Jianqing Institute of Chemical Metallurgy Academia Sinica. Study on Turbulence Field in Equipment for Chemical Metallurgy[J]. .