循环流化床锅炉炉内传热计算方法的研究
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摘要
以某热电厂实际运行的450t/h循环流化床锅炉运行数据为基础,探讨了循环流化床锅炉炉内传热计算的分区段计算方法。把循环流化床炉膛沿高度方向划分为密相区、2区、3区三个区段,在这三个区段分别建立热平衡方程式,计算循环流化床锅炉密相区、2区、3区的传热系数。结合计算结果对影响循环流化床传热系数的因素进行了分析,并对各区段的辐射和对流特性,燃烧份额的分布,灰循环倍率的选取问题等方面进行了阐述。对启动特性用SPSS软件进行了数据分析,得出了床料粒度与启动时间的关系式。本文方法可为大型循环流化床锅炉的设计和传热计算提供参考。
Based on certain thermal plant 450t/h circulating fluidized bed boiler operating datum, the calculation method of the heat transfer of circulating fluidized bed in sections was studied. We splitted the boiler furnase into three sections which are dense ,2and3zone according to the furnase height we built thermal equilibrium equation respectively in dense ,2 and 3 zone, and calculated the coefficient of heat transfer in each section. And combines to the calculation results analyze to the factor which influence circulating fluidized bed coefficient of heat transfer.And the radiation and convection characteristics of 3 sections, the share of the distribution of combustion, choosing ash circulating ratio are expounded.Starting up data are analyzed with SPSS software has carried on the specific property, and reached the available relation type of granularity of bed material and the starting up time. This method can provide guidance to the design and thermal calculation of large-scale circulating fluidized bed.
Based on certain thermal plant 450t/h circulating fluidized bed boiler operating datum, the calculation method of the heat transfer of circulating fluidized bed in sections was studied. We splitted the boiler furnase into three sections which are dense ,2and3zone according to the furnase height we built thermal equilibrium equation respectively in dense ,2 and 3 zone, and calculated the coefficient of heat transfer in each section. And combines to the calculation results analyze to the factor which influence circulating fluidized bed coefficient of heat transfer.And the radiation and convection characteristics of 3 sections, the share of the distribution of combustion, choosing ash circulating ratio are expounded.Starting up data are analyzed with SPSS software has carried on the specific property, and reached the available relation type of granularity of bed material and the starting up time. This method can provide guidance to the design and thermal calculation of large-scale circulating fluidized bed.
引文
[1]樊泉桂,丁岩峰.循环流化床锅炉稀相区辐射传热份额的计算方法.动力工程, 2005, 25(5):615～617
[2]刘德昌,阎维平.流化床燃烧技术.北京:中国电力出版社,1995.10～200
[3]四川省电力工业局.循环流化床燃烧技术.北京:中国电力出版社,1998. 10～200
[4]健雄,毛健全,赵树民.煤的清洁燃烧.北京:科学出版社,1998.5～12
[5]吕俊复,张建胜.循环流化床锅炉运行与检修.北京:中国水利水电出版社,2003.10～150
[6]屈伟东,杨建华.循环流化床锅炉设备及运行.郑州:河南科学技术出版社,2002. 40～135
[7]刘德昌,陈汉平,张世红,等.循环流化床锅炉运行及事故处理.北京:中国电力出版社,2006. 76～88
[8]刘德昌.流化床燃烧技术的工业应用.北京:中国电力出版社,1998. 5～100
[9]冯俊凯,岳光溪.循环流化床燃烧锅炉.北京:中国电力出版社,2003.69～78
[10]路春美,程世庆.循环流化床锅炉设备与运行.北京:中国电力出版社.2003,10～50
[11]巴苏P.循环流化床锅炉设计与运行.北京:科学出版社,1994.60～100
[12]岑可法,倪明江,骆仲泱,等.循环流化床锅炉理论设计与运行.北京:中国电力出版社,1998. 20～300
[13]岑可法,倪明江,骆仲泱,等.循环流化床锅炉的设计与运行.北京:科学出版社,1994. 20～300
[14]程乐鸣,骆仲泱,倪明江,等.循环流化床中传热综述(试验部分).动力工程, 1998, 18(2):20～34
[15]程乐鸣,骆仲泱,倪明江,等.循环流化床中传热综述(数学模型).动力工程, 1998, 18(1):48～53
[16]戴天红,钱壬章.循环流化床的传热机理.燃烧科学与技术,1997,3(3): 270～279
[17] Schaub G,Reimert R,Albrecht J.Investigation of Emission Rates From Large Scale Circulating Fluidized Bed Combustion Plants.In:Manaker A,ed.Proceedings of 10th Int.Conf.on Fluidized Bed Combustion,1989.685~692
[18]程乐鸣,骆仲泱.循环流化床辐射传热模型.中国电机工程学报,2001,21(9):99～103
[19]程乐鸣,骆仲泱,李绚天,等.循环流化床膜式壁传热试验与模型.工程热物理学报, 1998, 19(4):514～518
[20]程乐鸣.大型循环流化床锅炉传热.动力工程, 2000,20(3):587～591
[21]李军,李荫棠.循环流化床传热研究的进展.动力工程,18(4):53～58
[22] Basu P. Heat transfer in high temperature fast fluidized beds.Chem. Eng. Sci., 1990, 45(10):3123~3136
[23]林宗虎,魏敦崧,安恩科,等.循环流化床锅炉.北京:化学工业出版社,2004.39～62
[24]朱国桢,徐洋.循环流化床锅炉设计与计算.北京:清华大学出版社,2004. 34～51
[25]刘焕彩.循环流化床锅炉原理与设计.武汉:华中科技大学出版社,1988. 136～153
[26]戴天红.循环流化床传热的数学模型.热力发电,1999,(5):24～28
[27]孙献斌,何王全.循环流化床传热特性的试验研究.热力发电,2000,(1): 1～3
[28] Leckner B,Golriz M R,Zhang W,Anderson B A.Boundary Layer—First Measurement in the 12MW Research Plant at Chalmers University.In:Anthony E J,ed.Proceedings of the 1991 Int.Conf.on Fluidized Bed Combustion,Montreal,1991.771~776
[29] Rhodes M J,Solaart M,Wang X S.Flow Structure in a Fast Fluid Bed.Powder Technology,1998,99:194~200
[30]吕俊复.循环流化床锅炉燃烧室受热面传热系数计算方法.清华大学学报,2000,40(2):94～97,101
[31]李爱民.循环流化床锅炉热力计算方法探讨.锅炉技术,2002,33(6):23～27
[32]程乐鸣.循环流化床辐射传热模型.中国电机工程学报,2001,21(9):99～103
[33]房德山,冷伟,徐治皋,等.循环流化床锅炉传热特性分析.东南大学学报, 2001,31,(6):52～55
[34] Zhou J,Grace J R,Qin S,Brereton C M H,Lim C J,Zhu J.Voidage Profiles in a Circulating Fluidized Bed of Square Cross-section.Chem.Eng.Sci.,1994,49(19):3217~3226
[35]金晓钟,吕俊复.循环床锅炉燃烧份额分布的实验研究和理论分析.洁净煤技术,1999, 5(1):26～29
[36]刘辉,姜秀民.循环流化床燃烧室密相区燃烧份额计算的数学模型.动力工程,2000, 23(4):2511～2514,2505
[37]徐洋,朱国桢.循环流化床锅沪中灰平衡与灰循环倍率与燃烧产物热平衡方程式.锅炉技术, 2002,33(5):9～15
[38]朱国桢.循环流化床锅沪中灰平衡与灰循环倍率.锅沪技术,1999,30 (9): 6～11
[39]朱国桢,徐洋.循环流化床锅炉中灰循环倍率与炉膛传热系数.锅沪技术,2003,34(1):24～30
[40]罗传奎,骆仲泱.循环流化床锅炉最优循环倍率的确定,燃烧科学与技术,1996, 2(1):72～77
[41]顾亚平,牛长山.循环流化床锅炉循环系统的分析与设计探讨,西安交通大学学报,1995,29(12):56～60,93
[42]大唐保定热电厂8#、9#循环流化床锅炉运行报表,2003.10/2004.3
[43]党黎军,等.循环流化床锅炉的启动调试与安全运行.北京:中国电力出版社,2002.50～200
[44]于照清,鞠德明.循环流化床锅炉爆燃原因及解决办法.华东电力,2001, 29(4):29～30
[45]要建军,陈俊,毛玉如.流化床锅炉点火启动方式的分析与比较.节能,2001,56(5):18～20
[46]余建英,何旭宏.数据统计分析与SPSS应用.北京:人民邮电出版社,2003.33～45
[47]黄洪波,陆继东,伍蔚恒.45t/h循环流化床锅炉的启动调试研究.工业锅炉,2003,77(6):24～26
[48]孙献斌.国外循环流化床大型化技术.热力发电,1996,25(6):48～53
[49]边疆,刘耀鑫.国产化大型循环流化床锅炉的运行分析.能源工程,2003,26(6):35～38
[50]边疆,安国银.国产化100MW等级CFB锅炉技术特点及结构特性.河北电力技术,2001, 20(2):14～17,23
[51]边疆,安国银.大型CFB锅炉设备稳定运行问题探讨.河北电力技术,2003, 22(4):4～6
[52]辛建,吕俊复.发展超临界循环流化床的讨论.热能动力工程,2002,17(5):439～441
[53]杨义波,孙丽君.国产CFB锅炉大型化中存在的问题及分析研究.洁净煤技术,2003, 9(3):42～45
[54]郭兆军,秦鹏.大型化循环流化床锅炉炉型和主要辅助系统的改进设计.吉林电力,2003,34(6):19～21
[55]熊天柱,田子平,等.循环流化床锅炉的大型化.锅炉技术,2004,35(2): 1～6
[56]周一工.国外大型循环流化床锅炉的发展与存在问题.黑龙江电力技术,1999,25(1):40～43
[57]卢啸风.大型循环流化床锅炉设备与运行.北京:中国电力出版社,2006. 20～31
[58]刘清.循环流化床的大型化及其耐火材料问题.电站系统工程,2003,19(1):3～5
[59]王树荣.循环流化床大型化关键设计问题研究.热力发电,2000,29(4): 2～5
[2]刘德昌,阎维平.流化床燃烧技术.北京:中国电力出版社,1995.10～200
[3]四川省电力工业局.循环流化床燃烧技术.北京:中国电力出版社,1998. 10～200
[4]健雄,毛健全,赵树民.煤的清洁燃烧.北京:科学出版社,1998.5～12
[5]吕俊复,张建胜.循环流化床锅炉运行与检修.北京:中国水利水电出版社,2003.10～150
[6]屈伟东,杨建华.循环流化床锅炉设备及运行.郑州:河南科学技术出版社,2002. 40～135
[7]刘德昌,陈汉平,张世红,等.循环流化床锅炉运行及事故处理.北京:中国电力出版社,2006. 76～88
[8]刘德昌.流化床燃烧技术的工业应用.北京:中国电力出版社,1998. 5～100
[9]冯俊凯,岳光溪.循环流化床燃烧锅炉.北京:中国电力出版社,2003.69～78
[10]路春美,程世庆.循环流化床锅炉设备与运行.北京:中国电力出版社.2003,10～50
[11]巴苏P.循环流化床锅炉设计与运行.北京:科学出版社,1994.60～100
[12]岑可法,倪明江,骆仲泱,等.循环流化床锅炉理论设计与运行.北京:中国电力出版社,1998. 20～300
[13]岑可法,倪明江,骆仲泱,等.循环流化床锅炉的设计与运行.北京:科学出版社,1994. 20～300
[14]程乐鸣,骆仲泱,倪明江,等.循环流化床中传热综述(试验部分).动力工程, 1998, 18(2):20～34
[15]程乐鸣,骆仲泱,倪明江,等.循环流化床中传热综述(数学模型).动力工程, 1998, 18(1):48～53
[16]戴天红,钱壬章.循环流化床的传热机理.燃烧科学与技术,1997,3(3): 270～279
[17] Schaub G,Reimert R,Albrecht J.Investigation of Emission Rates From Large Scale Circulating Fluidized Bed Combustion Plants.In:Manaker A,ed.Proceedings of 10th Int.Conf.on Fluidized Bed Combustion,1989.685~692
[18]程乐鸣,骆仲泱.循环流化床辐射传热模型.中国电机工程学报,2001,21(9):99～103
[19]程乐鸣,骆仲泱,李绚天,等.循环流化床膜式壁传热试验与模型.工程热物理学报, 1998, 19(4):514～518
[20]程乐鸣.大型循环流化床锅炉传热.动力工程, 2000,20(3):587～591
[21]李军,李荫棠.循环流化床传热研究的进展.动力工程,18(4):53～58
[22] Basu P. Heat transfer in high temperature fast fluidized beds.Chem. Eng. Sci., 1990, 45(10):3123~3136
[23]林宗虎,魏敦崧,安恩科,等.循环流化床锅炉.北京:化学工业出版社,2004.39～62
[24]朱国桢,徐洋.循环流化床锅炉设计与计算.北京:清华大学出版社,2004. 34～51
[25]刘焕彩.循环流化床锅炉原理与设计.武汉:华中科技大学出版社,1988. 136～153
[26]戴天红.循环流化床传热的数学模型.热力发电,1999,(5):24～28
[27]孙献斌,何王全.循环流化床传热特性的试验研究.热力发电,2000,(1): 1～3
[28] Leckner B,Golriz M R,Zhang W,Anderson B A.Boundary Layer—First Measurement in the 12MW Research Plant at Chalmers University.In:Anthony E J,ed.Proceedings of the 1991 Int.Conf.on Fluidized Bed Combustion,Montreal,1991.771~776
[29] Rhodes M J,Solaart M,Wang X S.Flow Structure in a Fast Fluid Bed.Powder Technology,1998,99:194~200
[30]吕俊复.循环流化床锅炉燃烧室受热面传热系数计算方法.清华大学学报,2000,40(2):94～97,101
[31]李爱民.循环流化床锅炉热力计算方法探讨.锅炉技术,2002,33(6):23～27
[32]程乐鸣.循环流化床辐射传热模型.中国电机工程学报,2001,21(9):99～103
[33]房德山,冷伟,徐治皋,等.循环流化床锅炉传热特性分析.东南大学学报, 2001,31,(6):52～55
[34] Zhou J,Grace J R,Qin S,Brereton C M H,Lim C J,Zhu J.Voidage Profiles in a Circulating Fluidized Bed of Square Cross-section.Chem.Eng.Sci.,1994,49(19):3217~3226
[35]金晓钟,吕俊复.循环床锅炉燃烧份额分布的实验研究和理论分析.洁净煤技术,1999, 5(1):26～29
[36]刘辉,姜秀民.循环流化床燃烧室密相区燃烧份额计算的数学模型.动力工程,2000, 23(4):2511～2514,2505
[37]徐洋,朱国桢.循环流化床锅沪中灰平衡与灰循环倍率与燃烧产物热平衡方程式.锅炉技术, 2002,33(5):9～15
[38]朱国桢.循环流化床锅沪中灰平衡与灰循环倍率.锅沪技术,1999,30 (9): 6～11
[39]朱国桢,徐洋.循环流化床锅炉中灰循环倍率与炉膛传热系数.锅沪技术,2003,34(1):24～30
[40]罗传奎,骆仲泱.循环流化床锅炉最优循环倍率的确定,燃烧科学与技术,1996, 2(1):72～77
[41]顾亚平,牛长山.循环流化床锅炉循环系统的分析与设计探讨,西安交通大学学报,1995,29(12):56～60,93
[42]大唐保定热电厂8#、9#循环流化床锅炉运行报表,2003.10/2004.3
[43]党黎军,等.循环流化床锅炉的启动调试与安全运行.北京:中国电力出版社,2002.50～200
[44]于照清,鞠德明.循环流化床锅炉爆燃原因及解决办法.华东电力,2001, 29(4):29～30
[45]要建军,陈俊,毛玉如.流化床锅炉点火启动方式的分析与比较.节能,2001,56(5):18～20
[46]余建英,何旭宏.数据统计分析与SPSS应用.北京:人民邮电出版社,2003.33～45
[47]黄洪波,陆继东,伍蔚恒.45t/h循环流化床锅炉的启动调试研究.工业锅炉,2003,77(6):24～26
[48]孙献斌.国外循环流化床大型化技术.热力发电,1996,25(6):48～53
[49]边疆,刘耀鑫.国产化大型循环流化床锅炉的运行分析.能源工程,2003,26(6):35～38
[50]边疆,安国银.国产化100MW等级CFB锅炉技术特点及结构特性.河北电力技术,2001, 20(2):14～17,23
[51]边疆,安国银.大型CFB锅炉设备稳定运行问题探讨.河北电力技术,2003, 22(4):4～6
[52]辛建,吕俊复.发展超临界循环流化床的讨论.热能动力工程,2002,17(5):439～441
[53]杨义波,孙丽君.国产CFB锅炉大型化中存在的问题及分析研究.洁净煤技术,2003, 9(3):42～45
[54]郭兆军,秦鹏.大型化循环流化床锅炉炉型和主要辅助系统的改进设计.吉林电力,2003,34(6):19～21
[55]熊天柱,田子平,等.循环流化床锅炉的大型化.锅炉技术,2004,35(2): 1～6
[56]周一工.国外大型循环流化床锅炉的发展与存在问题.黑龙江电力技术,1999,25(1):40～43
[57]卢啸风.大型循环流化床锅炉设备与运行.北京:中国电力出版社,2006. 20～31
[58]刘清.循环流化床的大型化及其耐火材料问题.电站系统工程,2003,19(1):3～5
[59]王树荣.循环流化床大型化关键设计问题研究.热力发电,2000,29(4): 2～5