登录
注册
E-alert
登录
注册
E-alert
Construction and application analysis of overall energy system for regenerative thermal oxidizers （RTOs）
-
摘要: 为了对蓄热式氧化炉（regenerative thermal oxidizer，RTO）节能燃烧提供理论依据，需要对RTO运行过程中各能量节点进行分析，细化RTO热平衡核算，建立RTO总体能量体系。以三室RTO为研究对象，以RTO整体作为分析体系，核算废气从进入RTO炉开始不同阶段气流的焓值，建立全流程热平衡模型，系统分析废气预热、燃烧、热量回收及热损失传递过程；提出包含蓄热体动态换热、多股气流耦合及复杂边界热损失的能量核算方法，引入蓄热体纵向温度分布函数，弥补蓄热室热量核算难点；构建了涵盖RTO设备内部11个关键能量节点的热力学体系；并根据不同行业RTO运行设计特点，对总体能量体系应用范围进行分析，可根据实际工况调整总体能量体系的平衡项，使构建的RTO总体能量体系具有广泛的适用性。通过构建某手套行业RTO能量体系进行热平衡核算验证，预测精度可从14.3%提升至2.8%，为未来智能化节能燃烧研究提供理论基础。Abstract: In order to provide a theoretical basis for the energy-saving combustion of regenerative thermal oxidizers （RTOs）， it is necessary to analyze the energy nodes during RTO operation， refine the heat balance accounting， and establish an overall energy system for RTOs. Taking a three-chamber RTO as the research object and the entire RTO device as the analytical system， this study calculated the enthalpy of exhaust gas as it entered the RTO furnace at different stages. A whole-process heat balance model was established to systematically analyze the processes of exhaust gas preheating， combustion， heat recovery， and heat loss transfer. To address the dynamic heat exchange inside heat accumulators， the coupling of multiple gas streams， and boundary heat loss under complex working conditions， an improved energy accounting method was proposed. The longitudinal temperature distribution function of heat accumulators was introduced to address the difficulties in heat accounting inside the accumulator chamber. A thermodynamic system covering 11 key internal energy nodes of the RTO device was constructed. Combined with the design characteristics of RTO operation in different industries， this study analyzed the application scope of the overall energy system， which can be adjusted by modifying the equilibrium terms according to actual conditions， thus ensuring that the construction of the overall energy system has wide applicability. By constructing an RTO energy system for a glove manufacturing plant and conducting thermal balance calculations for verification， the prediction accuracy of outlet temperature can be improved from 14.3% to 2.8%， providing a theoretical basis for future research on intelligent energy-saving combustion.
-
[1] LU Z W. Purification technology of organic waste gas[M]. Beijing：Chemical Industry Press，2011. 陆震维. 有机废气的净化技术[M]. 北京：化学工业出版社，2011. [2] CHE X H，LUO C H，DUAN D Q，et al. Safety evaluation system and application of VOCs treatment projects in industrial coating industry based on process simulation[J]. Chemical Industry and Engineering Progress，2025，44（8）：4741-4753. 车兴灏，罗晨辉，段东全，等. 基于流程模拟的工业涂装行业 VOCs 治理工程安全评价体系及应用[J]. 化工进展，2025，44（8）：4741-4753. [3] WANG B，MA R，XUE G C，et al. Research progress on thermal oxidation technology for industrial organic waste gas[J]. Chemical Industry and Engineering Progress，2017，36（11）：4232-4242. 王波，马睿，薛国程，等. 工业有机废气热氧化技术研究进展[J]. 化工进展，2017，36（11）：4232-4242. [4] SUN D，WANG Y G，DAI Y J，et al. Current situation and treatment technology analysis of volatile organic compounds[J]. Journal of Power Engineering，2023，43（5）：641-654. 孙豆，王云刚，戴艳俊，等. 挥发性有机物治理现状及处理技术分析[J]. 动力工程学报，2023，43（5）：641-654. [5] XIE Z P. Application of regenerative thermal oxidizer（RTO）in waste gas treatment[J]. Guangdong Chemical Industry，2022，49（12）：140-142. 谢志鹏. 蓄热式氧化炉（RTO）在废气处理中的应用[J]. 广东化工，2022，49（12）：140-142. [6] The Institute of Clean Air Companies. ICAC Guidance Method for Estimation of Gas Consumption in A Regenerative Thermal Oxidizer（RTO）[EB/OL].[ 2023-11-12]. [7] QIN X Y，GAO N P，GAO J W，et al. Thermal balance calculation of RTO and analysis on influencing factors of natural gas consumption[J]. China Environmental Science，2021，41（10）：4837-4842. 覃显益，高乃平，高久唯，等. RTO 热力平衡核算及天然气消耗量影响因素分析[J]. 中国环境科学，2021，41（10）：4837-4842. [8] CHEN W J，LU C Y，QU X L，et al. Thermal balance calculation and numerical simulation analysis for energy system construction of RTO in glove industry[J]. Chinese Journal of Environmental Engineering，2024，18（11）：3308-3316. 陈伟杰，陆朝阳，瞿晓磊，等. 手套行业蓄热式氧化炉能量体系构建的热平衡核算及数值模拟分析[J]. 环境工程学报，2024，18（11）：3308-3316. [9] SHAO Y，WEI Z Q，ZHOU A Y，et al. Cause analysis and solutions for abnormal temperature rise in middle and lower part of RTO regenerative chamber[J]. Henan Science and Technology，2025，52（6）：88-92. 邵勇，魏子强，周安益，等. 关于 RTO 炉蓄热室中下部异常升温的原因分析及解决措施[J]. 河南科技，2025，52（6）：88-92. [10] Nester J L，Uphues R. Regenerative thermal oxidizer upgrades allow coil coater to increase production and maintain regulatory compliance[J]. Metal Finishing，1997，95（1）：46-48. [11] FU S Q，FANG X B，ZHU J Q. Investigation and analysis on application of regenerative thermal oxidizer[J]. Environmental Science and Management，2017，42（9）：132-136. 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. [12] ZHANG J P，XIANG F. Brief analysis on treatment of volatile organic waste gas by regenerative thermal oxidation technology[J]. Zhejiang Chemical Industry，2014，45（3）：36-39. 张建萍，项菲. 浅析蓄热式热力氧化技术处理挥发性有机废气[J]. 浙江化工，2014，45（3）：36-39. [13] SHUAI Q F，DONG X P，LU J G，et al. Research progress on treatment of industrial VOCs waste gas by regenerative combustion method[J]. Environmental Science& Technology，2021，44（1）：134-140. 帅启凡，董小平，陆建刚，等. 蓄热燃烧法处理工业 VOCs 废气的研究进展[J]. 环境科学与技术，2021，44（1）：134-140. [14] General Office of the State Council of the People's Republic of China. Notice of the State Council on issuing the comprehensive work plan for energy conservation and emission reduction during the 14th Five-Year Plan Period[Z]. Gazette of the State Council of the People's Republic of China，2022（5）：46-52. 中华人民共和国国务院办公厅. 国务院关于印发"十四五" 节能减排综合工作方案的通知[Z]. 中华人民共和国国务院公报，2022（5）：46-52. [15] YANG S M，TAO W Q. Heat transfer[M]. 4th ed i. Beijing：Higher Education Press，2006. 杨世铭，陶文铨. 传热学[M]. 4 版. 北京：高等教育出版社，2006. [16] HUA Z C，ZHANG D X，GAO J. Heat-resistant lining of industrial furnace[M]. Beijing：Chemical Industry Press，2007. 华泽錞，张德信，高捷. 工业炉耐热炉衬[M]. 北京：化学工业出版社，2007. -
点击查看大图
计量
- 文章访问数: 4
- HTML全文浏览量: 1
- PDF下载量: 0
- 被引次数: 0
下载:
