大容量D型燃气锅炉自然循环水动力特性分析
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摘要
针对200 t/h大容量D型燃气锅炉水动力学特点,通过比较系统运行压差与各管排停滞压差来区分多排对流管束区域中上升管与下降管,获得了下降管数量随工况变化的规律.并根据确定的下降管数量进行了该型锅炉自然循环水动力学计算,进一步对该锅炉在不同工况下水动力学特性参数变化趋势进行了分析,为该型大容量D型燃气锅炉的设计与安全运行提供了理论依据.
This paper aims at the hydrodynamic characteristics of 200 t/h large capacity D-type gas boiler. By comparing the differential pressure of the system operation and the stagnation pressure of each tube,the rising and falling pipes in the area of multiple rows of convection tubes were distinguished,and the rule of the number of falling pipe with the changing of working condition was obtained. The dynamic calculation of natural circulation water of the boiler was carried out according to the number of the down tubes,and the dynamic characteristic parameters of the boiler in different conditions were analyzed,which provides a theoretical basis for the design and safe operation of this type of large capacity D gas boiler.
This paper aims at the hydrodynamic characteristics of 200 t/h large capacity D-type gas boiler. By comparing the differential pressure of the system operation and the stagnation pressure of each tube,the rising and falling pipes in the area of multiple rows of convection tubes were distinguished,and the rule of the number of falling pipe with the changing of working condition was obtained. The dynamic calculation of natural circulation water of the boiler was carried out according to the number of the down tubes,and the dynamic characteristic parameters of the boiler in different conditions were analyzed,which provides a theoretical basis for the design and safe operation of this type of large capacity D gas boiler.
引文
[1]刘桂兰,陈济榕.大容量高参数D型锅炉的结构特点和关键技术[J].热能动力工程,2005,20(3):317-319.LIU Huilan,CHEN Jirong. Structure characteristics and key technology of large capacity and high parameter D type boiler[J]. Journal of Engineering for Thermal Energy and Power,2005,20(3):317-319.(in Chinese)
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[7]莫春鸿. D型锅炉的水循环研究[D].西安:西安交通大学,2003.
[8] CAO R. Performance characteristics analysis of supercritical boiler water wall[J]. Mechatronics and Materials Processing,2011(328/330):2248-2251. DOI:10. 4028/www. scientific. net/AMR. 328-330. 2248.
[9] BARANOV V N,NIKOLAEV S F,GORB A A. Studying the hydrodynamic instability of heating surfaces used in a P-57 boiler[J]. Thermal Engineering,2011,58(12):988-997. DOI:10. 1134/S0040601511120044.
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[11]宋贵良.锅炉计算手册[M].沈阳:辽宁科学技术出版社,1995.
[12]洛克申,王孟浩,李守恒.锅炉机组水力计算标准方法[M].董祖康,译.北京:电力工业出版社,1981.
[13]任祥翔.大容量D型锅炉水循环的可靠性研究[D].镇江:江苏科技大学,2015.
[14]翁文理,宋肇林,陈国京. 220吨/时燃油锅炉水循环试验[J].锅炉技术,1973,3(1):7-19.WENG Wenli,SONG Zhaolin,CHEN Guojing. Boiler water cycle test of 220 tons/hour[J]. Boiler Technology,1973,3(1):7-19.(in Chinese)
[15]刘迎光.立式自然循环余热锅炉水动力循环特性计算及数值模拟[D].无锡:中国船舶重工集团公司第703研究所,2013.
[16] YAO S,ZHANG J,ZHANG L. Hydrodynamic character analysis of natural circulation HRSG of blast furnace gas[J]. International Journal of Heat,2016,34(1):98-102. DOI:10. 18280/ijht. 340114.
[17]姚寿广,甘露,钱飞舟,等.某大容量D型锅炉对流管束卡门涡街诱导振动分析[J].江苏科技大学学报(自然科学版),2017,31(2):162-166.YAO Shouguang,GAN Lu,QIAN Feizhou,et al. Analysis of Karmen vortex shedding induced vibration of convective pipes for a certain D boiler[J]. Journal of Jiangsu University of Science and Technology(Nature Science Edition),2017,31(2):162-166. DOI:10. 11917/j.issn. 1673-4807. 2017. 02. 008.(in Chinese)
[18]马哲树,姚寿广.燃油锅炉油滴运动蒸发的数值模拟[J].华东船舶工业学院学报(自然科学版),2002,16(4):56-59.MA Zheshu,YAO Shouguang. Numerical simulation of dynamics and evaporation of fuel droplets in the chamber of fuel-burning boiler[J]. Journal of East China Shipbuilding Institute(Natural Science Edition),2002,16(4):56-59.(in Chinese)
[2] ADAM E J,MARCHETTI J L. Dynamic simulation of large boilers with natural recirculation[J]. Computers and Chemical Engineering,1999,23(8):1031-1040. DOI:10. 1016/S0098-1354(99)00269-0.
[3] KIM H,CHOI S. A model on water level dynamics in natural circulation drum-type boilers[J]. International Communications in Heat and Mass Transfer,2005,32(6):786-796. DOI:10. 1016/j. icheatmasstransfer.2004. 10. 010.
[4]董芃,徐艳英,兰晔.采用水动力回路分析法进行自然循环热水锅炉水动力数值计算[J].工业锅炉,2006,21(2):8-13.DONG Peng,XU Yanying,LAN Rihua. Hydrodynamic numerical calculation of natural circulation hot water boiler by hydrodynamic loop analysis method[J]. Industrial boiler,2006,21(2):8-13.(in Chinese)
[5]蒋安众.带有多排管的复杂回路锅炉水动力计算[J].锅炉技术,2000,31(10):5-9.JIANG Anzhong. Water power calculation of complex circuit with multiple exhaust pipes[J]. Boiler Technology,2000,31(10):5-9.(in Chinese)
[6]徐艳英,兰晔.自然循环热水锅炉水动力回路分析法的计算原理[J].热能动力工程,2006,21(5):473-476.XU Yanying,LAN Rihua. The calculation principle of the water power loop analysis method for natural circulation hot water boiler[J]. Thermal Power Engineering,2006,21(5):473-476.(in Chinese)
[7]莫春鸿. D型锅炉的水循环研究[D].西安:西安交通大学,2003.
[8] CAO R. Performance characteristics analysis of supercritical boiler water wall[J]. Mechatronics and Materials Processing,2011(328/330):2248-2251. DOI:10. 4028/www. scientific. net/AMR. 328-330. 2248.
[9] BARANOV V N,NIKOLAEV S F,GORB A A. Studying the hydrodynamic instability of heating surfaces used in a P-57 boiler[J]. Thermal Engineering,2011,58(12):988-997. DOI:10. 1134/S0040601511120044.
[10]冯俊凯,沈幼庭.锅炉原理及计算[M].北京:科技出版社,2003.
[11]宋贵良.锅炉计算手册[M].沈阳:辽宁科学技术出版社,1995.
[12]洛克申,王孟浩,李守恒.锅炉机组水力计算标准方法[M].董祖康,译.北京:电力工业出版社,1981.
[13]任祥翔.大容量D型锅炉水循环的可靠性研究[D].镇江:江苏科技大学,2015.
[14]翁文理,宋肇林,陈国京. 220吨/时燃油锅炉水循环试验[J].锅炉技术,1973,3(1):7-19.WENG Wenli,SONG Zhaolin,CHEN Guojing. Boiler water cycle test of 220 tons/hour[J]. Boiler Technology,1973,3(1):7-19.(in Chinese)
[15]刘迎光.立式自然循环余热锅炉水动力循环特性计算及数值模拟[D].无锡:中国船舶重工集团公司第703研究所,2013.
[16] YAO S,ZHANG J,ZHANG L. Hydrodynamic character analysis of natural circulation HRSG of blast furnace gas[J]. International Journal of Heat,2016,34(1):98-102. DOI:10. 18280/ijht. 340114.
[17]姚寿广,甘露,钱飞舟,等.某大容量D型锅炉对流管束卡门涡街诱导振动分析[J].江苏科技大学学报(自然科学版),2017,31(2):162-166.YAO Shouguang,GAN Lu,QIAN Feizhou,et al. Analysis of Karmen vortex shedding induced vibration of convective pipes for a certain D boiler[J]. Journal of Jiangsu University of Science and Technology(Nature Science Edition),2017,31(2):162-166. DOI:10. 11917/j.issn. 1673-4807. 2017. 02. 008.(in Chinese)
[18]马哲树,姚寿广.燃油锅炉油滴运动蒸发的数值模拟[J].华东船舶工业学院学报(自然科学版),2002,16(4):56-59.MA Zheshu,YAO Shouguang. Numerical simulation of dynamics and evaporation of fuel droplets in the chamber of fuel-burning boiler[J]. Journal of East China Shipbuilding Institute(Natural Science Edition),2002,16(4):56-59.(in Chinese)