华南理工大学学报(自然科学版) ›› 2008, Vol. 36 ›› Issue (2): 122-127.

• 动力与电气工程 • 上一篇    下一篇

奥里油锅炉高温腐蚀的混沌预测

梁平赵明龙新峰2   

  1. 1. 华南理工大学 电力学院, 广东 广州 510640; 2. 华南理工大学 化工与能源学院, 广东 广州 510640
  • 收稿日期:2007-03-28 修回日期:2007-04-26 出版日期:2008-02-25 发布日期:2008-02-25
  • 通信作者: 梁平(1953-),男,博士,副教授,主要从事热能动力工程、传热强化与节能研究. E-mail:mrpliang@126.com
  • 作者简介:梁平(1953-),男,博士,副教授,主要从事热能动力工程、传热强化与节能研究.
  • 基金资助:

    广东省自然科学基金资助项目(05006518)

Chaotic Forecasting of High-Temperature Corrosion of Orimulsion Furnace

Liang Ping1  Zhao Ming1  Long Xin-feng2   

  1. 1. School of Electric Power, South China University of Technology, Guangzhou 510640, Guangdong, China ; 2. School of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2007-03-28 Revised:2007-04-26 Online:2008-02-25 Published:2008-02-25
  • Contact: 梁平(1953-),男,博士,副教授,主要从事热能动力工程、传热强化与节能研究. E-mail:mrpliang@126.com
  • About author:梁平(1953-),男,博士,副教授,主要从事热能动力工程、传热强化与节能研究.
  • Supported by:

    广东省自然科学基金资助项目(05006518)

摘要: 奥里油中含钒量较多,是锅炉预防高温腐蚀设计中的大难题.文中针对奥里油钒高温下的腐蚀机理,运用混沌理论,建立基于最大Lyapunov指数的腐蚀预测模型,并以电阻探针测得某输油管道内的高温腐蚀深度数据,对所提出的腐蚀预测模型进行校验.预测与评估结果显示:腐蚀深度误差均小于6%,平均误差为3.58%,预测精度较高,表明所提出的预测模型可以有效预测金属的高温腐蚀状况,为奥里油钒的高温腐蚀预测提供理论依据.

关键词: 奥里油, 非牛顿流体, 高温腐蚀, 混沌理论, Lyapunov指数

Abstract:

The large amount of vanadium in Orimulsion may cause unexpected problems in the prevention of hightemperature corrosion of furnace. In order to solve this problem, the corrosion mechanism of vanadium at high tem perature is analyzed and the chaos theory is adopted to establish a corrosion-forecasting model based on the maximum Lyapunov exponent. The proposed model is then tested according to the depth of high-temperature corrosion of a pipeline measured by means of a resistance probe. Tested and predicated results show that the prediction is of high precision, and that the error of corrosion depth is less than 6% with the average being 3.58%. It is thus coneluded that the proposed forecasting model can effectively predict the high-temperature corrosion of metal and lay theoretical foundations for the forecasting of vanadium corrosion at high temperature.

Key words: Orimulsion, non-Newtonian fluid, high-temperature corrosion, chaos theory, Lyapunov exponent