蓄热式氧化器蓄热体的性能研究
|
摘要
包装印刷生产过程中所排放的挥发性有机化合物(Volatile Organic Compounds,VOCs)不仅危害人体健康,还会对环境造成严重污染。蓄热式热力氧化器是目前广泛使用的VOCs处理设备,为了充分掌握其结构参数与处理效果之间的规律,本研究对蓄热式热力氧化器进行了数值模拟:首先,分析并设计了蓄热室的三维模型;其次,对蓄热室进行模拟仿真计算,获得了蓄热室内部温度、压强的变化规律;最后,根据模拟结果计算得到4种网孔密度下蓄热体的压降与床层高度、热效率与床层高度的关系。结果表明,孔型和流速相同时,蓄热体压降与床高呈正相关;蓄热体的热效率随床高增加而提高直至接近100%,当蓄热体的热效率满足实际运行要求时,应尽可能降低床层高度,提高设备利用率。
The emission of VOCs(Volatile Organic Compounds) during packaging and printing production endangers human health and causes serious pollution to the environment. The regenerative thermal oxidizer is a widely used VOCs processing equipment. In order to fully grasp the law between its structural parameters and treatment effects,the regenerative thermal oxidizer was numerically simulated in this paper. Firstly, the three-dimensional model of the regenerator was analyzed and designed. Secondly, the simulation calculation of the regenerator was carried out, and the variation of temperature and pressure inside the regenerator was obtained. Thirdly, according to the simulation results and numerical analysis, the relationships between the pressure drop of the regenerator bed and the bed height,thermal efficiency and bed height under different mesh types were obtained. The results showed that when the pore shape and flow rate are the same, the pressure drop of the regenerator is positively correlated with the bed height. The thermal efficiency of the regenerator increases with the increase of the bed height until the thermal efficiency is close to 100%. When the thermal efficiency meets the actual operation requirements, the bed height should be reduced as much as possible to improve equipment utilization.
The emission of VOCs(Volatile Organic Compounds) during packaging and printing production endangers human health and causes serious pollution to the environment. The regenerative thermal oxidizer is a widely used VOCs processing equipment. In order to fully grasp the law between its structural parameters and treatment effects,the regenerative thermal oxidizer was numerically simulated in this paper. Firstly, the three-dimensional model of the regenerator was analyzed and designed. Secondly, the simulation calculation of the regenerator was carried out, and the variation of temperature and pressure inside the regenerator was obtained. Thirdly, according to the simulation results and numerical analysis, the relationships between the pressure drop of the regenerator bed and the bed height,thermal efficiency and bed height under different mesh types were obtained. The results showed that when the pore shape and flow rate are the same, the pressure drop of the regenerator is positively correlated with the bed height. The thermal efficiency of the regenerator increases with the increase of the bed height until the thermal efficiency is close to 100%. When the thermal efficiency meets the actual operation requirements, the bed height should be reduced as much as possible to improve equipment utilization.
引文
[1]杨媛媛.西安市建筑装饰装修业VOCs排放清单[J].节能,2017,36(4):46-49.YANG Yuan-yuan.VOCs Emission Inventory of Xi’an Building Decoration Industry[J].Energy Conservation,2017,36(4):46-49.
[2]刘含笑,徐贝佳,郦建国,等.挥发性有机物(VOCs)的测定方法[J].电力科技与环保,2017,(6):5-9.LIU Han-xiao,XU Bei-jia,YAN Jian-guo,et al.Determination of Volatile Organic Compounds(VOCs)[J].Power Technology and Environmental Protection,2017,(6):5-9.
[3]WANG H L,WANG J H,ZHU C L,et al.Evaluation and Selection of VOCs Treatment Technologies in Packaging and Printing Industry[J].Environmental Science,2014,35(7):2503-2507.
[4]陈森阳.印刷行业VOCs排放控制与治理现状探究[J].厦门科技,2018,(1):17-20.CHEN Sen-yang.Research on the Current Status of VOCs Emission Control and Governance in the Printing Industry[J].Xiamen Science and Technology,2018,(1):17-20.
[5]苑宏英,郭静.VOCs恶臭污染物质的污染状况和一般处理方法[J].四川环境,2004,23(6):45-49.YUAN Hong-ying,GUO Jing.Pollution Status and General Treatment Methods of VOCs Odor Pollutants[J].Sichuan Environment,2004,23(6):45-49.
[6]李莹,张红星,闫柯乐,等.含氯挥发性有机物(ClVOCs)废气处理的研究进展[J].现代化工,2016,(8):46-49.LI Ying,ZHANG Hong-xing,YAN Ke-le,et al.Research Progress of Waste Gas Treatment of Chlorine Volatile Organic Compounds(Cl-VOCs)[J].Modern Chemical Industry,2016,(8):46-49.
[7]SUGASAWA M,ANNADURAI G,FUTAMURA S,et al.Nonthermal Plasma Chemical Processing of MIXEDVOCs[C].Proceedings of Fourtieth Ias Meeting Conference Record of the Industry Applications Conference.New York:IEEE,2005.
[8]FARAG M A,ParéP W.C6-Green Leaf Volatiles Trigger Local and Systemic VOC Emissions in Tomato[J].Phytochemistry,2002,61(5):545-554.
[9]王红红.蓄热式热氧化器处理挥发性有机物苯的数值模拟[D].河北:河北科技大学,2018.WANG Hong-hong.Numerical Simulation of Volatile Organic Compounds Benzene Treated by Regenerative Thermal Oxidizer[D].Hebei:Hebei University of Science and Technology,2018.
[10]耿文广,张继刚,员冬玲,等.蓄热式氧化炉在无机材料煅烧尾气处理中的应用[J].环境工程学报,2018,12(11):273-277.GENG Wen-guang,ZHANG Ji-gang,YUAN Dong-ling et al.Application of Regenerative Oxidation Furnace in the Treatment of Inorganic Material Calcination Tail Gas[J].Journal of Environmental Engineering,2018,12(11):273-277.
[11]顾煜炯,张晨,耿直,等.新型套管式相变蓄热器结构优化及传热研究[J].热力发电,2018.GU Yu-tong,ZHANG Chen,GENG Zhi,et al.Structural Optimization and Heat Transfer of a Novel Casing Type Phase Change Regenerator[J].Thermal Power Generation,2018.
[12]刘永启,牟宝杰,郑斌,等.莫来石蜂窝陶瓷的阻力特性[J].陶瓷学报,2012,33(2):162-166.LIU Yong-qi,MOU Bao-jie,ZHENG Bin,et al.Resistance Characteristics of Mullite Honeycomb Ceramics[J].Chinese Journal of Ceramics,2012,33(2):162-166.
[13]杨振华,蔡鹏山,韩润,等.蓄热式氧化器用陶瓷蓄热体性能测试及对比[J].化工机械,2015,42(2):196-198.YANG Zhen-hua,CAI Peng-shan,HAN Run,et al.Performance Test and Comparison of Ceramic Regenerators for Regenerative Oxidizers[J].Chemical Industry,2015,42(2):196-198.
[14]ZHOU H Q,LAN B,CHEN B,et al.Numerical Simulation of Heat Transfer in Ceramic Honeycomb of Regenerative Thermal Oxidizer for Ventilation Air Methane[J].Safety in Coal Mines,2010.
[15]刘洁.蓄热式VOCs处理设备的流场分析与性能研究[D].西安:西安理工大学,2018.LIU Jie.Flow Field Analysis and Performance Study of Regenerative VOCs Processing Equipment[D].Xi'an:Xi'an University of Technology,2018.
[2]刘含笑,徐贝佳,郦建国,等.挥发性有机物(VOCs)的测定方法[J].电力科技与环保,2017,(6):5-9.LIU Han-xiao,XU Bei-jia,YAN Jian-guo,et al.Determination of Volatile Organic Compounds(VOCs)[J].Power Technology and Environmental Protection,2017,(6):5-9.
[3]WANG H L,WANG J H,ZHU C L,et al.Evaluation and Selection of VOCs Treatment Technologies in Packaging and Printing Industry[J].Environmental Science,2014,35(7):2503-2507.
[4]陈森阳.印刷行业VOCs排放控制与治理现状探究[J].厦门科技,2018,(1):17-20.CHEN Sen-yang.Research on the Current Status of VOCs Emission Control and Governance in the Printing Industry[J].Xiamen Science and Technology,2018,(1):17-20.
[5]苑宏英,郭静.VOCs恶臭污染物质的污染状况和一般处理方法[J].四川环境,2004,23(6):45-49.YUAN Hong-ying,GUO Jing.Pollution Status and General Treatment Methods of VOCs Odor Pollutants[J].Sichuan Environment,2004,23(6):45-49.
[6]李莹,张红星,闫柯乐,等.含氯挥发性有机物(ClVOCs)废气处理的研究进展[J].现代化工,2016,(8):46-49.LI Ying,ZHANG Hong-xing,YAN Ke-le,et al.Research Progress of Waste Gas Treatment of Chlorine Volatile Organic Compounds(Cl-VOCs)[J].Modern Chemical Industry,2016,(8):46-49.
[7]SUGASAWA M,ANNADURAI G,FUTAMURA S,et al.Nonthermal Plasma Chemical Processing of MIXEDVOCs[C].Proceedings of Fourtieth Ias Meeting Conference Record of the Industry Applications Conference.New York:IEEE,2005.
[8]FARAG M A,ParéP W.C6-Green Leaf Volatiles Trigger Local and Systemic VOC Emissions in Tomato[J].Phytochemistry,2002,61(5):545-554.
[9]王红红.蓄热式热氧化器处理挥发性有机物苯的数值模拟[D].河北:河北科技大学,2018.WANG Hong-hong.Numerical Simulation of Volatile Organic Compounds Benzene Treated by Regenerative Thermal Oxidizer[D].Hebei:Hebei University of Science and Technology,2018.
[10]耿文广,张继刚,员冬玲,等.蓄热式氧化炉在无机材料煅烧尾气处理中的应用[J].环境工程学报,2018,12(11):273-277.GENG Wen-guang,ZHANG Ji-gang,YUAN Dong-ling et al.Application of Regenerative Oxidation Furnace in the Treatment of Inorganic Material Calcination Tail Gas[J].Journal of Environmental Engineering,2018,12(11):273-277.
[11]顾煜炯,张晨,耿直,等.新型套管式相变蓄热器结构优化及传热研究[J].热力发电,2018.GU Yu-tong,ZHANG Chen,GENG Zhi,et al.Structural Optimization and Heat Transfer of a Novel Casing Type Phase Change Regenerator[J].Thermal Power Generation,2018.
[12]刘永启,牟宝杰,郑斌,等.莫来石蜂窝陶瓷的阻力特性[J].陶瓷学报,2012,33(2):162-166.LIU Yong-qi,MOU Bao-jie,ZHENG Bin,et al.Resistance Characteristics of Mullite Honeycomb Ceramics[J].Chinese Journal of Ceramics,2012,33(2):162-166.
[13]杨振华,蔡鹏山,韩润,等.蓄热式氧化器用陶瓷蓄热体性能测试及对比[J].化工机械,2015,42(2):196-198.YANG Zhen-hua,CAI Peng-shan,HAN Run,et al.Performance Test and Comparison of Ceramic Regenerators for Regenerative Oxidizers[J].Chemical Industry,2015,42(2):196-198.
[14]ZHOU H Q,LAN B,CHEN B,et al.Numerical Simulation of Heat Transfer in Ceramic Honeycomb of Regenerative Thermal Oxidizer for Ventilation Air Methane[J].Safety in Coal Mines,2010.
[15]刘洁.蓄热式VOCs处理设备的流场分析与性能研究[D].西安:西安理工大学,2018.LIU Jie.Flow Field Analysis and Performance Study of Regenerative VOCs Processing Equipment[D].Xi'an:Xi'an University of Technology,2018.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |