您的位置：山东大学 -> 科技期刊社 -> 《山东大学学报（工学版）》

山东大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (5): 126-130.doi: 10.6040/j.issn.1672-3961.0.2016.036

• • 上一篇    

四分仓回转空预器热力模型与漏风模型耦合计算

褚达,史月涛*,王晓娟   

  1. 山东大学能源与动力工程学院, 山东 济南 250061
  • 收稿日期:2016-01-20 出版日期:2016-10-20 发布日期:2016-01-20
  • 通讯作者: 史月涛(1974— ),男,山东聊城人,副教授,硕导,主要研究方向为热力系统节能及可靠性研究. E-mail:shieddie@sdu.edu.cn E-mail:403450478@qq.com
  • 作者简介:褚达(1991— ),男,山东菏泽人,硕士研究生,主要研究方向为四分仓空预器热力计算. E-mail:403450478@qq.com
  • 基金资助:
    发改委关于电力行业低碳技术创新及产业化示范工程资助项目(发改办高技［2013］1819)

Coupling calculation between thermal model and air leakage model of quad-sectional rotary air preheater

CHU Da, SHI Yuetao*, WANG Xiaojuan   

  1. School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China
  • Received:2016-01-20 Online:2016-10-20 Published:2016-01-20

PDF (PC)

528

摘要： 为分析四分仓回转空气预热器换热特性及抗低温腐蚀性能,建立热力及漏风计算模型,提出低温区域比的概念。先忽略漏风,基于回转空预器控制方程,利用有限差分法求解热力模型,得到温度分布,根据热力计算结果,求解漏风能量及质量方程组,得到漏风率,再根据进出口参数对两模型进行迭代。结果表明,计算值与设计值误差在5%以内;与同样面积的三分仓空预器对比,四分仓空气预热器的漏风率显著降低;各通道流体温度分布呈连续性,且与换热元件的温度分布基本一致;进口烟气流量沿转动方向的递减可显著地降低低温区域比,有效减少低温腐蚀。

关键词: 低温区域比, 漏风模型, 四分仓回转空气预热器, 低温腐蚀, 热力模型

Abstract: In order to analyze the heat transfer performance and low-temperature corrosion resistance property of quad-sectional rotary air preheater, the thermal and air-leakage calculation model were built and a concept named low-temperature area rate was proposed. With the air leakage ignored, thermal model was solved by numerical finite difference method based on control equations of rotary air preheater and temperature distribution was acquired. The energy and mass equations of air leakage were solved according to the results of thermal calculation and air leakage rate was obtained. Then iterative calculation of these two models was carried out in accordance with inlet and outlet parameters. The results showed that the difference between the calculated value and the designed value was less than 5%. Air leakage of quad-sectional air preheater was much less than that of tri-sectional one with the same heat transfer area. The temperature distributions of fluids in different channels were continuous and consistent with matrix. The low-temperature area rate was reduced with the decline of inlet gas flow along the direction of rotary, which helped to avoid low-temperature corrosion.

Key words: air leakage model, low-temperature area rate, thermal model, low-temperature corrosion, quad-sectional rotary air preheater

中图分类号: 

  • TK172
[1] 陈昌贤, 孙奉仲, 李飞, 等. 四分仓回转式空气预热器热力计算方法[J]. 山东大学学报(工学版), 2014,44(4):60-65. CHEN Changxian, SUN Fengzhong, LI Fei, et al. Thermal calculation method for quad-sectional regenerative air preheater[J]. Journal of Shandong University(Engineering Science), 2014, 44(4):60-65.
[2] 周俊虎, 杨卫娟, 靳彦涛,等. 三分仓空气预热器热力计算的研究[J]. 动力工程, 2003,23(6):2810-2813. ZHOU Junhu, YANG Weijuan, JIN Yantao, et al. Research of tri-sectional air preheater thermal calculation[J]. Power Engineering, 2003, 23(6):2810-2813.
[3] 冷伟, 王渡. 一种改进的回转式空气预热器热力计算方法[J]. 动力工程, 2005,25(3):392-395. LENG Wei, WANG Du. An improved way for thermal calculation of rotary air preheater[J]. Power Engineering, 2005, 25(3):392-395.
[4] 郑凯, 周克毅, 黄军林, 等. 一种改进的三分仓空气预热器热力计算方法[J]. 动力工程学报, 2012, 32(1):31-35. ZHENG Kai, ZHOU Keyi, HUANG Junlin, et al. An improved thermal calculation method for tri-sectional rotary air preheaters[J]. Journal of Chinese Society of Power Engineeryin, 2012, 32(1):31-35.
[5] SKIEPKO T, SHAH R K. A comparison of rotary regenerator theory and experimental results for an air preheater for a thermal power plant[J]. Experimental Thermal and Fluid Science, 2004, 28(28):257-264.
[6] 张启, 王谦, 王恩禄, 等. 基于有限差分的二分仓回转式空气预热器热力计算[J]. 锅炉技术, 2009,40(4):25-29. ZHANG Qi, WANG Qian, WANG Enlu, et al. Bisector air preheater performance evaluation based on numerical finite difference method[J]. Boiler Technology, 2009, 40(4):25-29.
[7] 刘福国, 周新刚. 考虑轴向导热的三分仓回转预热器传热模型及验证[J]. 机械工程学报, 2010, 46(22):144-150. LIU Fuguo, ZHOU Xingang. Heat transfer model of tri-section rotary air preheater and experimental verification[J]. Journal of Mechanical Engineering, 2010, 46(22):144-150.
[8] HEIDARI-KAYDAN A, HAJIDAVALLOO E. Three-dimensional simulation of rotary air preheater in steam power plant[J]. Applied Thermal Engineering, 2014(73):399-407.
[9] 冷伟, 陈道轮, 张志伦, 等. 基于解析方法的回转式空气预热器换热计算[J]. 中国电机工学报, 2005, 25(3):141-146. LENG Wei, CHEN Daolun, ZHANG Zhilun, et al. Heat exchange calculation of regenerative air preheater with analytical method[J]. Proceeding of the CSEE, 2005, 25(3):141-146.
[10] SKIEPKO T. Experimental results concerning seal clearances in some rotary heat exchangers[J]. Heat Recovery Systems, 1988, 8(6):577-871.
[11] ZENG M, DU L, LIAO D, et al. Investigation on pressure drop and heat transfer performances of plate-fin iron air preheater unit with experimental and genetic algorithm methods[J]. Applied Energy, 2012, 92(4):725-732.
[12] WANG L, DENG L, TANG C, et al. Thermal deformation prediction based on the temperapture distribution of the rotor in rotary air-preheater[J]. Applied Thermal Egineering, 2015, 90:478-488.
[13] CAI M, HUI S, WANG X, et al. A study on the direct leakage of rotary air preheater with multiple seals[J]. Applied Thermal Engineering, 2013, 59(1-2):576-586.
[14] JESTIN L, FULS W, PRONOBIS M. A numerical study of air preheater leakage[J]. Energy, 2015, 92:37- 44.
[15] SHAH R K, SKIEPKO T. Influence of leakage distribution on the thermal performance of a rotary regenerator[J]. Applied Thermal Engineering, 1999, 19:685-705.
[1] 曲燕,程林,栾涛 . 非规则截面散热板内嵌热管的传热能力分析[J]. 山东大学学报(工学版), 2008, 38(5): 42-45 .
[2] 栾志坚,张冠敏,张俊龙,潘继红 . 波纹几何参数对人字形板式换热器内流动形态的影响机理[J]. 山东大学学报(工学版), 2007, 37(2): 34-37 .
[3] 邵孟伟,袁世飞,周宏志,王乃华. 基于BP神经网络和遗传算法的翅片管结构优化[J]. 山东大学学报 (工学版), 2025, 55(6): 76-82.
[4] 柳洋,朱波,陈超伟,陈岩,辛公明. 多热源冷却的新型环路热管设计及性能[J]. 山东大学学报 (工学版), 2025, 55(6): 90-99.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] 王素玉,艾兴,赵军,李作丽,刘增文 . 高速立铣3Cr2Mo模具钢切削力建模及预测[J]. 山东大学学报(工学版), 2006, 36(1): 1 -5 .
[2] 李 侃 . 嵌入式相贯线焊接控制系统开发与实现[J]. 山东大学学报(工学版), 2008, 38(4): 37 -41 .
[3] 孔祥臻,刘延俊,王勇,赵秀华 . 气动比例阀的死区补偿与仿真[J]. 山东大学学报(工学版), 2006, 36(1): 99 -102 .
[4] 陈瑞,李红伟,田靖. 磁极数对径向磁轴承承载力的影响[J]. 山东大学学报(工学版), 2018, 48(2): 81 -85 .
[5] 李可,刘常春,李同磊 . 一种改进的最大互信息医学图像配准算法[J]. 山东大学学报(工学版), 2006, 36(2): 107 -110 .
[6] 季涛,高旭,孙同景,薛永端,徐丙垠 . 铁路10 kV自闭/贯通线路故障行波特征分析[J]. 山东大学学报(工学版), 2006, 36(2): 111 -116 .
[7] 浦剑1 ,张军平1 ，黄华2 . 超分辨率算法研究综述[J]. 山东大学学报(工学版), 2009, 39(1): 27 -32 .
[8] 王丽君,黄奇成,王兆旭 . 敏感性问题中的均方误差与模型比较[J]. 山东大学学报(工学版), 2006, 36(6): 51 -56 .
[9] 孙殿柱,朱昌志,李延瑞 . 散乱点云边界特征快速提取算法[J]. 山东大学学报(工学版), 2009, 39(1): 84 -86 .
[10] 赵然杭,陈守煜 . 水资源数量与质量联合评价理论模型研究[J]. 山东大学学报(工学版), 2006, 36(3): 46 -50 .
版权所有 © 2018 《山东大学学报(工学版)》编辑部　
地址: 济南市山大南路27号（250100）　 电话: 0531-88366735　 E-mail: xbgxb@sdu.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发