RTO热力平衡核算及天然气消耗量影响因素分析

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Abstract The heat balance equation of Regenerative Thermal Oxidizer (RTO) was established according to actual operating condition of a painting workshop. The no-load and full-load operation data of RTO was calculated, and the relationship between furnace temperature and concentration of Volatile Organic Compounds (VOCs) was verified. On this basis, the influence of four key parameters of exhaust air volume, zeolite runner concentration ratio, heat exchanger heat utilization rate and VOCs concentration on natural gas consumption were discussed. The results show that the furnace temperature increased by about 21℃ for each 1000mg/Nm³ growth in the incoming VOCs concentration. The smaller exhaust air volume made the higher zeolite rotor concentration multiplier and heat exchanger thermal utilization rate, and thus resulted in higher VOCs concentration in the RTO. This results could reduce natural gas consumption. The heat balance equation was established in this paper, combined with the considerations in engineering application of RTO. When painting was being dryed, the minimum exhaust air volume of painting workshop was establed on the basis of 3 times/h. The concentration multiplier of zeolite rotor was set to 10~14times, and the heat exchanger with heat utilization rate above 0.7 was selected, which could significantly reduce the natural gas consumption, and ensuring the safe operation of RTO.

Key words： regenerative thermal oxidizer volatile organic compounds thermodynamic calculation natural gas consumption

Received: 09 March 2021

PACS:

X788

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	Articles by authors
	QIN Xian-yi
	GAO Nai-ping
	GAO Jiu-wei
	PAN Jia-zhi
	GAO Peng
	ZHU Tong

Cite this article:

QIN Xian-yi,GAO Nai-ping,GAO Jiu-wei等. Thermodynamic balance calculation of RTO and analysis of influencing factors of natural gas consumption[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(10): 4837-4842.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I10/4837

[1]	Arlien-Søborg P, Henriksen L, Gade A, et al. Cerebral blood flow in chronic toxic encephalopathy in house painters exposed to organic solvents[J]. Acta Neurologica Scandinavica, 1982,66(1):34-41.
[2]	Kirkeskov L, Witterseh T, Funch L W. Health evaluation of volatile organic compound (VOC) emission from exotic wood products[J]. Indoor Air, 2010,19(1):45-57.
[3]	代可,李保亮,陈一.汽车涂装车间VOCs废气治理形势与技术运用[J]. 电镀与涂饰, 2019,38(22):1236-1241.Dai K, Li B L, Chen Y. Policy situation of VOCs-containing waste gas treatment in automotive paint shop and application of related technologies[J]. Electroplating & Finishing, 2019,38(22):1236-1241.
[4]	虞小芳,程鹏,古颖纲,等.广州市夏季VOCs对臭氧及SOA生成潜势的研究[J]. 中国环境科学, 2018,38(3):830-837.Yu X F, Cheng P, Gu Y G, et al. Formation potential of ozone and secondary organic aerosol from VOCs oxidation in summer in Guangzhou, China[J]. China Environmental Science, 2018,38(3):830-837.
[5]	王瑞鹏,周颖,程水源,等.华北地区典型机场清单建立及空气质量影响[J]. 中国环境科学, 2020,40(4):1468-1476.Wang R P, Zhou Y, Cheng S Y, et al. The establishment of airports emission inventory and the air quality impactsfor typical airports in North China[J]. China Environmental Science, 2020,40(4):1468-1476.
[6]	费波.船舶涂装工艺VOCs处理关键技术及试验性研究[D]. 徐州:中国矿业大学, 2019.Fei B. Key Technologies and Experimental Research on VOCs Treatment of Ship Painting[D]. Xuzhou:China University of Mining and Technology, 2019.
[7]	Shukla, P. H, Patel, Acharya Y SandM. R. Biological methods for removal of vocs from air emissions of chemical process industries[J]. Indian Journal of Biochemistry & Biophysics, 2016,13(2):113-116.
[8]	刘相章.浅谈低浓度有机废气治理技术的选择[J]. 中国环保产业, 2020,260(2):46-50.Liu X Z. Discussion on the selection of low-concentration organic waste gas treatment technologies[J]. China Environmental Protection Industry, 2020,260(2):46-50.
[9]	罗江波,薛江段,史佳伟,等.关于RTO运行能耗研究[J]. 现代涂料与涂装, 2020,(2):46-49.Luo J B, Xue J D, Shi J W, Guan B. Research on operation energy consumption of the RTO[J]. Modern Paint & Finishing, 2020,(2):46-49.
[10]	丁映春.沸石浓缩转轮系统在喷漆室废气治理中的应用[J]. 现代涂料与涂装, 2015,18(8):70-72.Ding Y C. The application of zeolite concentration runner system in waste gas treatment of spraying booth[J]. Modern Paint & Finishing, 2015,18(8):70-72.
[11]	马晓凤,林渐玲.蓄热式热氧化炉处理涂布有机废气可行性分析研究[J]. 环境科学与管理, 2016,41(7):125-128.Ma X F, Lin J L. Analysis on feasibility of treating coated organic waste gas with regenerative thermal oxidizer[J]. Environmental Science and Management, 2016,41(7):125-128.
[12]	李泽清,罗福坤.烘房VOCs废气治理技术路线探析[J]. 环境科学, 2011,32(12):3685-3688.Li Z Q, Luo F K. Analysis of the treatment technology pathway of VOCs released from oven[J]. Chinese Journal of Environmental Science, 2011,32(12):3685-3688.
[13]	邹航.蓄热式废气焚烧炉(RTO)在彩涂线的应用[J]. 工业炉, 2010,32(2):24-25.Zou H. Application of regenerative thermal oxidizer in color coating line[J]. Industrial Furnace, 2010,32(2):24-25.
[14]	付守琪,方晓波,朱剑秋.RTO(蓄热式氧化炉)应用调研分析研究[J]. 环境科学与管理, 2017,42(9):132-136.Fu S Q, Fang X B, Zhu J Q. Analysis on application of RTO[J]. Environmental Science and Management, 2017,42(9):132-136.
[15]	萧琦,姜泽毅,张欣欣.蓄热式热氧化器的改进与应用[J]. 环境工程学报, 2011,5(6):1347-1350.Xiao Q, Jiang Z Y, Zhang X X. Improvement and application of regenerative thermal oxidizer[J]. Chinese Journal of Environmental Engineering, 2011,5(6):1347-1350.
[16]	郝继宗,兰剑,孟祥龙,等. RTO在VOCs工程实例中关键因素的研究[J]. 广州化工, 2020,48(23):141-144.Hao J Z, Lan J, Meng X L. Study on key factors of RTO in engineering practice of VOCs treatment[J]. Guangzhou Chemical Industry, 2020,48(23):141-144.
[17]	Giuntini L, Bertei A, Tortorelli S, et al. Coupled CFD and 1-D dynamic modeling for the analysis of industrial Regenerative Thermal Oxidizers[J]. Chemical Engineering and Processing-Process Intensification, 2020,157:108117.
[18]	罗国民.蓄热式高温空气燃烧技术[M]. 北京:冶金工业出版社, 2011.Luo G M. Regenerative high temperature air combustion technology[M]. Beijing, Metallurgical Industry Press, 2011.
[19]	王晨昊.船舶工业大跨度涂装工场的设计[J]. 工程建设与设计, 2019,(19):8-11.Wang C H. Design of large-span painting workshop for shipbuilding industry[J]. Construction & Design for Engineering, 2019,(19):8-11.