Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第13卷    第3期    总第54期    2003年6月

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文章编号:1004-0609(2003)03-0778-05
冷凝器负荷波动下铅塔内锌蒸气动态响应数学模型
鄂加强, 梅 炽, 张 全, 时章明

(中南大学 能源与动力工程学院, 长沙 410083)

摘 要: 为了研究铅塔锌精馏系统动态响应灵敏度,基于流体静力学、 动力学, 以及质量守恒和能量守恒定律, 建立了冷凝器负荷波动下铅塔内锌蒸气质量流量、 密度及压强的动态响应通用数学模型。 通过此数学模型, 可以求解稳态下铅塔内锌蒸气的质量流量、密度以及压强的大小和铅塔冷凝器负荷波动下铅塔内锌蒸气的动态响应行为。 由模型应用可知铅塔内锌蒸气动态响应过程的衰减时间常数很小, 表明铅塔锌精馏系统自适应灵敏度高。

 

关键词: 锌蒸气;动态响应; 铅塔; 负荷波动; 冷凝器

Mathematical model of zinc vapour dynamic response in lead
column based on fluctuant charge of condenser
E Jia-qiang, MEI Chi, ZHANG Quan, SHI Zhang-ming

School of Energy and Power Engineering,
Central South University, Changsha 410083, China

Abstract:In order to investigate the sensitive capability of zinc refining system in lead column in dynamic response to fluctuant charge of the condenser, some universal mathematical models such as mass flux, density and pressure of zinc vapour in lead column were established based on hydrostatics, dynamics, the law of mass and energy conservation. Such information as the value of mass flux, density and pressure of zinc vapour in lead column in steady state and how to respond to fluctuant charge of the condenser were gotten. The results of the models verifying reveal that the attenuation time constant in the dynamic response of zinc vapour is very little. The sensitive capability of the self-adaptation of zinc refining system in lead column to fluctuant charge of the condenser is credible.

 

Key words: zinc vapour; dynamic response; lead column; fluctuant charge; con

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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