一种回转窑余热回收用集热器的实验研究及其结构优化

doi:10.11949/j.issn.0438-1157.20160093

化工学报 ›› 2016, Vol. 67 ›› Issue (7): 2740-2747.DOI: 10.11949/j.issn.0438-1157.20160093

一种回转窑余热回收用集热器的实验研究及其结构优化

殷谦, 杜文静, 纪兴林, 程林

山东大学热科学与工程研究中心, 山东济南 250061

收稿日期:2016-01-20 修回日期:2016-03-28 出版日期:2016-07-05 发布日期:2016-07-05
通讯作者: 程林
基金资助:
国家重点基础研究发展计划项目（2013CB228305）。

Experimental measurement and structure optimization of heat recovery exchangers on rotary kilns

YIN Qian, DU Wenjing, JI Xinglin, CHENG Lin

Institute of Thermal Science and Technology, Shandong University, Jinan 250061, Shandong, China

Received:2016-01-20 Revised:2016-03-28 Online:2016-07-05 Published:2016-07-05
Supported by:
supported by the National Basic Research Program of China (2013CB228305).

摘要/Abstract

摘要：

减少回转窑表面的散热损失对冶金、化工等高耗能行业的节能减排具有重要意义。针对现有窑表面集热器回收效率较低的现状，提出了一种新型集热器，并通过实验测量与数值计算分析了其换热性能。建立了集热器换热量与管长、管径及管子数等结构参数的数学关系，分别以换热面积、进出口压降以及改进的熵产数为优化目标，利用遗传算法分别对其进行了结构设计，结果表明，优化后集热器的辐射换热所需的换热面积减小15%，对流换热所需的换热面积减少20%左右。优化后两种形式的换热面所消耗的泵功明显减少。优化后集热器的传热熵产数与优化前无明显变化，而流动熵产数得到明显降低。

关键词: 节能, 回转窑, 集热器, 传热, 优化

Abstract:

A novel heat recovery exchanger installed on the rotary kiln shell surface is proposed in this paper. The heat recovery exchanger contains water tubes and coiled pipes, which function as the radiative and the convective heat transfer surfaces, respectively. Numerical studies and experimental measurements are carried out to investigate the heat transfer characteristics of the heat exchanger. Several optimization models are proposed with the heat transfer area, the pressure drop and the modified entropy generation numbers set as the objective functions. The models describe the relation between the heat transfer rates and structural parameters of the heat recovery exchanger, i.e. the tube length, the tube numbers and the tube diameter. The optimized design parameters are obtained by applying the genetic algorithm toolbox in Matlab. The results indicate that the optimized heat transfer areas of water tubes and coiled pipes are decreased by 15% and 20%, respectively. The corresponding pressure drop is significantly decreased after optimization. In the optimization process, the modified entropy generation numbers are decreased due to fluid friction, while the modified entropy generation numbers remain unchanged due to heat transfer.

Key words: energy conservation, rotary kilns, heat recovery exchanger, heat transfer, optimization

中图分类号:

TK124

殷谦, 杜文静, 纪兴林, 程林. 一种回转窑余热回收用集热器的实验研究及其结构优化[J]. 化工学报, 2016, 67(7): 2740-2747.

YIN Qian, DU Wenjing, JI Xinglin, CHENG Lin. Experimental measurement and structure optimization of heat recovery exchangers on rotary kilns[J]. CIESC Journal, 2016, 67(7): 2740-2747.

参考文献 21

[1]	ATMACA A, YUMRUTA? R. Analysis of the parameters affecting energy consumption of a rotary kiln in cement industry [J]. Appl. Therm. Eng., 2014, 66(1/2): 435-444.
[2]	MUJUMDAR K S, GANESH K V, KULKARNI S B, et al. Rotary cement kiln simulator (rocks): integrated modeling of pre-heater, calciner, kiln and clinker cooler [J]. Chem. Eng. Sci., 2007, 62(9): 2590-2607.
[3]	MADLOOL N A, SAIDUR R, HOSSAIN M S, et al. A critical review on energy use and savings in the cement industries [J]. Renewable and Sustainable Energy Rev., 2011, 15(4): 2042-2060.
[4]	SUI X, ZHANG Y, SHAO S, et al. Exergetic life cycle assessment of cement production process with waste heat power generation [J]. Energy Convers.Manage., 2014, 88(4): 684-692.
[5]	ATMACA A, YUMRUTA? R. Thermodynamic and exergoeconomic analysis of a cement plant (Ⅱ): Application [J]. Energy Conver. Manage., 2014, 79(3): 799-808.
[6]	CAPUTO A C, PELAGAGGE P M, SALINI P. Performance modeling of radiant heat recovery exchangers for rotary kilns [J]. Appl. Therm. Eng., 2011, 31(14/15): 2578-2589.
[7]	KARAMARKOVI? V, MARAŠEVI? M, KARAMARKOVI? R, et al. Recuperator for waste heat recovery from rotary kilns [J]. Appl. Therm. Eng., 2013, 54(2): 470-480.
[8]	SÖ?ÜT Z, OKTAY Z, KARAKO H. Mathematical modeling of heat recovery from a rotary kiln [J]. Appl. Therm. Eng., 2010, 30(8/9): 817-825.
[9]	ENGIN T, ARI V. Energy auditing and recovery for dry type cement rotary kiln systems - a case study [J]. Energy Conver. Manage., 2005, 46(4): 551-562.
[10]	马万龙. 水泥回转窑筒体表面余热回收利用技术研究 [D]. 大连:大连理工大学, 2012. MA W L. Cement rotary kiln surface waste heat recovery and utilization technology research [D]. Dalian: Dalian University of Technology, 2012.
[11]	程林, 杜文静. 正六边形水泥回转窑表面热量回收装置: CN103123219A [P]. 2013-05-29. CHENG L, DU W J. The orthohexagonal heat recovery devices on rotary kilns: CN103123219A [P]. 2013-05-29.
[12]	YANG J, FAN A, LIU W, et al. Optimization of shell-and-tube heat exchangers conforming to TEMA standards with designs motivated by constructal theory [J]. Energy Conver. Manage., 2014, 78(2): 468-476.
[13]	KHALIFEH SOLTAN B, SAFFAR-AVVAL M, DAMANGIR E. Minimizing capital and operating costs of shell and tube condensers using optimum baffle spacing [J]. Appl. Therm. Eng., 2004, 24(17/18): 2801-2810.
[14]	YIN Q, CHEN Q, DU W J, et al. Design requirements and performance optimization of waste heat recovery systems for rotary kilns [J]. Int. J. Heat Mass Transfer, 2016, 93(2): 1-8.
[15]	曹兴. 连续与搭接螺旋折流板换热器理论分析与实验研究[D]. 济南: 山东大学, 2012. CAO X. Theoretical analysis and experimental study of shell-and-tube heat exchanger with continuous helical baffles and overlapped helical baffles [D]. Jinan: Shandong University, 2012.
[16]	SHAH R K. Fundamentals of Heat Exchanger Design [M]. New Jersey: John Wiley & Sons, Inc., 2003: 88-182.
[17]	杨世铭, 陶文铨. 传热学[M]. 北京: 高等教育出版社, 2006: 260-261. YANG S M, TAO W Q. Heat Transfer [M]. Beijing: Higher Education Press, 2006: 260-261.
[18]	雷英杰, 张善文, 李续武. MATLAB遗传算法工具箱及应用[M]. 西安: 西安电子科技大学出版社, 2005: 1-2. LEI Y J, ZHANG S W, LI X W. MATLAB Algorithm Toolbox and Application [M]. Xi'an: Xi'an University of Electric Science and Technology Press, 2005: 1-2.
[19]	BEJAN A. The concept of irreversibility in heat exchanger design: counterflow heat exchangers for gas-to-gas application [J]. J. Heat Transfer Trans. ASME, 1977, 99(3): 374-380.
[20]	HESSELGREAVES J E. Rationalisation of second law analysis of heat exchangers [J]. Int. J. Heat Mass Transfer, 2000, 43(22): 4189-4204.
[21]	WHITE F M. Fluid Mechanics [M]. Rhode Island: McGraw-Hill, 1998: 325-404.

一种回转窑余热回收用集热器的实验研究及其结构优化

Experimental measurement and structure optimization of heat recovery exchangers on rotary kilns

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