Study of the Thermal Calculation for the Multi-path Horizontal Circulating Fluidized Bed Boiler

doi:10.11930/j.issn.1004-9649.201803127

Abstract

Abstract: It is worth to study the thermal calculation method of the multi-path horizontal circulating fluidized bed boiler due to the insufficient experimental and practical data of the particle movement, combustion, and heat transfer in a multi-path circulating fluidized bed boiler. In this paper, the thermal calculation model based on material balance and energy balance is established according to the characteristics of a multi-path horizontal circulating fluidized bed (MPHCFB) boiler. The calculation methods of the separator efficiency, combustion fraction, and heat transfer coefficient for MPHCFB boilers are determined. A production MPHCFB boiler is calculated with the proposed thermal calculation model. The material distribution, temperature distribution, and heat distribution in the furnace are obtained. By comparing the calculation results with the industrial test data of the boiler, the thermal calculation results are in line with the actual operation of the boiler. This work presents an engineering-oriented method for the thermal calculation of an MPHCFB boiler. It can provide theoretical reference for the design and modification of industrial boilers in energy-saving and emission-reduction.

Key words: multi-path horizontal circulating fluidized bed (MPHCFB), boiler, thermal calculation, material balance, energy balance

CLC Number:

TK222

CONG Kunlin, LI Qinghai, LU Wei, ZHANG Yanguo. Study of the Thermal Calculation for the Multi-path Horizontal Circulating Fluidized Bed Boiler[J]. Electric Power, 2018, 51(8): 139-147.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201803127

https://www.electricpower.com.cn/EN/Y2018/V51/I8/139

References

[1] 戴彦德. 强化节能减排调控全面实现可持续发展[J]. 中国电力, 2007, 40(9):1-5 DAI Yande. Strengthening the macro-regulation on energy-conservation and emission-reduction to achieve the sustainable development in an all-round way[J]. Electric Power, 2007, 40(9):1-5
[2] 赵钦新, 王善武. 我国工业锅炉未来发展分析[J]. 工业锅炉, 2007(1):1-9 ZHAO Qinxin, WANG Shanwu. Developing analysis for China's industrial boiler future[J]. Industrial Boiler, 2007(1):1-9
[3] 赵钦新, 周屈兰. 工业锅炉节能减排现状、存在问题及对策[J]. 工业锅炉, 2010(1):1-6 ZHAO Qinxin, Zhou Qulan. Solutions questions and status of China's industrial boiler[J]. Industrial Boiler, 2010(1):1-6
[4] 刘建航. 我国燃煤工业锅炉现状及分析[J]. 洁净煤技术, 2017, 23(4):107-113 LIU Jianhang. Progress and situation analysis of coal fired industrial boilers in China[J]. Clean Coal Technology, 2017, 23(4):107-113
[5] 郭水文. 关于当前推进中国煤炭产业供给侧改革的思考[J]. 煤炭经济研究, 2016(4):22-27 GUO Shuiwen. Consideration on present promotion on supply front reform of China coal industry[J]. Coal Economic Research, 2016(4):22-27
[6] 严祯荣, 罗晓明, 时贵玉, 等. 燃煤粉工业锅炉的发展前景及节能减排技术创新[J]. 节能技术, 2010, 28(1):65-69 YAN Zhenrong, LUO Xiaoming, SHI Guiyu, et al. Coal powder industrial boiler development prospect and energy saving emission reducing technology innovation[J]. Energy Conservation Technology, 2010, 28(1):65-69
[7] 国务院. 国务院关于印发大气污染防治行动计划的通知, 国发(2013) 37号[EB/OL]. (2013-09-12)[2017-03-20]. http://www.gov.cn/zwgk/2013-09/12/content_2486773.htm
[8] 徐旭常, 吕俊复, 张海. 燃烧理论与燃烧设备[M]. 北京:科学出版社, 2012
[9] 岳光溪, 吕俊复, 徐鹏, 等. 循环流化床燃烧发展现状及前景分析[J]. 中国电力, 2016, 49(1):1-13 YUE Guangxi, LYU Junfu, XU Peng, et al. The up-to-date development and future of circulating fluidized bed combustion technology[J]. Electric Power, 2016, 49(1):1-13
[10] 蔡润夏, 吕俊复, 凌文, 等. 超(超)临界循环流化床锅炉技术的发展[J]. 中国电力, 2016, 49(12):1-7 CAI Runxiai, LYU Junfu, LING Wen, et al. Progress of supercritical and ultra-supercritical circulating fluidized bed boiler technology[J]. Electric Power, 2016, 49(12):1-7
[11] 刘德昌, 杨国来, 张世红, 等. 工业循环流化床锅炉的发展[J]. 工业锅炉, 2004(2):8-12 LIU Dechang, YANG Guolai, ZHANG Shihong, et al. Development of industrial circulating fluidized bed boilers[J]. Boiler Technology, 2004(2):8-12
[12] 薛晓垒, 卢啸风, 刘汉周, 等. 我国中小型循环流化床工业燃煤锅炉存在的问题及分析[J]. 工业锅炉, 2010(1):13-16 XUE Xiaolei, LU Xiaofeng, LIU Hanzhou, et al. Problems and analysis on middle and small size industrial circulating fluidized bed boiler in China[J]. Industrial Boiler, 2010(1):13-16
[13] 张衍国, 姚忠建, 李清海, 等. 一种卧式循环流化床燃烧设备及其循环燃烧方法:CN200510126362.6[P]. 2006-06-14
[14] 李清海, 张衍国, 初雷哲, 等. 一种烟气回燃的多流程低NOx卧式循环流化床锅炉:CN201720674717.3[P]. 2018-01-09
[15] 吴荣. 卧式循环流化床的颗粒浓度分布研究[D]. 北京:清华大学, 2009
[16] 李清海, 周晓彬, 陈庚, 等. 卧式循环流化床燃烧时的数值模拟[J]. 清华大学学报(自然科学版), 2013, 53(3):353-357 LI Qinghai, ZHOU Xiaobin, CHEN Geng, et al. Numerical investigation of the flow and combustion in a horizontal circulating fluidized bed boiler[J]. Journal of Tsinghua University (Science & Technology), 2013, 53(3):353-357
[17] Li QH, Zhang YG, Meng AH. Design and application of novel horizontal circulating fluidized bed boiler[C]//Proceedings of the 20th International Conference on FBC. Berlin, Heidelberg:Springer Berlin Heidelberg, 2010:206-211
[18] 鲁伟. 卧式循环流化床锅炉热力计算方法研究[D]. 北京:清华大学, 2013
[19] 张衍国, 勾宏图. 卧式循环流化床锅炉技术简介及应用[J]. 锅炉制造, 2008(1):5-7 ZHANG Yanguo, GOU Hongtu. Brief introduction and application for technique of horizontal CFB boiler[J]. Boiler Manufacturing, 2008(1):5-7
[20] 杨海瑞, 吕俊复, 岳光溪. 循环流化床锅炉的设计理论与设计参数的确定[J]. 动力工程, 2006, 26(1):42-48 YANG Hairui, LYU Junfu, YUE Guangxi. Design theory of circulating fluidized bed boilers and determination of the design parameters[J]. Journal of Power Engineering, 2006, 26(1):42-48
[21] WEN CY, CHEN LH. Fluidized bed freeboard phenomena:Entrainment and elutriation[J]. Aiche Journal, 1982, 28(1):117-128.
[22] 王勤辉, 骆仲泱, 倪明江, 等. 循环流化床锅炉炉内颗粒分布平衡模型[J]. 中国电机工程学报, 2001, 21(9):110-115 WANG Qinhui, LUO Zhongyang, NI Mingjiang, et al. Particle population model for circulating fluidized bed boiler furnace[J]. Proceedings of the CSEE, 2001, 21(9):110-115
[23] 张建胜. 循环流化床锅炉设计研究[D]. 北京:清华大学, 2001
[24] 严建华, 李晓东, 倪明江, 等. 循环流化床惯性分离器内气固两相流动的数值模拟[J]. 动力工程学报, 1996, 16(2):25-30 YAN Jianhua, LI Xiaodong, Ni Mingjiang, et al. Numerical simulation of inertia separators for cas/solid two-phase flow in CFB boilers[J]. Journal of Power Engineering, 1996, 16(2):25-30
[25] 李清海, 甘超, 冯蘅, 等. 卧式循环流化床回料器性能实验研究[J]. 燃烧科学与技术, 2013, 19(3):193-199 LI Qinghai, GAN Chao, FENG Heng, et al. Experimental study on the performance of loop-seal in a horizontal circulating fluidized bed boiler[J]. Journal of Combustion Science and Technology, 2013, 19(3):193-199
[26] 金晓钟, 吕俊复, 乔锐, 等. 循环床锅炉燃烧份额分布的实验研究和理论分析[J]. 洁净煤技术, 1999, 5(1):26-29 JIN Xiaozhong, LYU Junfu, QIAO Rui, et al. Experimental study and theory analysis on coal combustion fraction distribution in circulating fluidized bed combustor[J]. Clean Coal Technology, 1999, 5(1):26-29
[27] 张瑞卿, 杨海瑞, 吕俊复, 等. 循环流化床锅炉炉膛的传热计算[J]. 动力工程学报, 2011, 31(4):248-252 ZHANG Ruiqing, YANG Hairui, LYU Junfu, et al. Calculation of heat transfer in furnace of a circulating fluidized bed boiler[J]. Journal of Chinese Society of Power Engineering, 2011, 31(4):248-252
[28] 李清海, 张衍国. 热能工程基础[M]. 北京:清华大学出版社, 2016