首页|期刊导航|环境工程学报|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

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OA北大核心CSTPCD

The energy system of regenerative oxidation furnaces used in glove industry:Heat balance and numerical simulation

中文摘要英文摘要

为深入研究蓄热式氧化炉在燃烧时的热平衡关系、构建能量体系,针对某手套厂用于治理VOCs废气的蓄热式氧化炉(regenerative thermal oxidizer,RTO),采用美国空气净化产业协会提出的RTO燃料消耗量估算方法,评估了该手套厂RTO系统在理论工况下的热损失量和蒸汽产量,并额外计算了壁面耗散能量.同时结合数值模拟技术对手套行业RTO蒸汽产量的影响因素进行了系统分析,揭示了 RTO设备内部空间位置的能量分布.结果表明:前端收集系统设计时,单条产线的抽风量在6 000~8 000 m3·h-1是合理的范围.低风量运行时外壳热损失占比过大,已设计建成的大风量RTO不适宜在低风量下运行.当VOCs浓度上升时,蓄热体上层温度随之上升,对于源强波动大的VOCs废气,宜根据温度动态调控阀门的切换时间来控制蓄热体上层温度,使其维持在可接受范围内.

To better understand the heat balance and energy system of the regenerative thermal oxidizer(RTO),this study investigated an RTO used for treating VOC waste gas in a glove factory.Based on the RTO fuel consumption estimation method proposed by the Institute of Clean Air Companies,this study constructed the energy system of the glove factory's RTO system,assessed its heat loss and steam production under theoretical working conditions,and calculated the wall dissipation energy.Meanwhile,this study systematically investigated the influencing factors of RTO steam production in the glove industry using numerical simulation,revealing the internal energy distribution of the RTO equipment.The results showed that the suitable exhaust volume for the front-end collection system of a single production line was within a range of 6 000~8 000 m3·h-1.Current RTO with large exhaust volume was unsuitable for operating under low exhaust volume conditions due to large heat loss.The temperature of the upper layer of the regenerator rised with increasing VOC concentration.For VOC exhaust gas with significant fluctuation,the temperature of the upper layer of the regenerator could be controlled by adjusting the switching time of the valve to maintain it within an acceptable range.

陈伟杰;陈弘睿;陆朝阳;瞿晓磊;李明;徐遵主;蒋海涛;张纪文;孙永嘉;邵勇

南京大学环境学院,南京 210046南京大学环境学院,南京 210046||南京大学环境规划设计研究院集团股份公司,南京 210093南京大学环境规划设计研究院集团股份公司,南京 210093

环境科学

VOCs蓄热式氧化炉热平衡关系数值模拟

volatile organic compoundsregenerative thermal oxidizerthermal equilibrium relationshipnumerical simulation

《环境工程学报》 2024 (011)

3308-3316 / 9

国家自然科学基金资助项目(21876075);江苏省省级生态环境科研项目(2023009);苏州市重点产业技术创新项目(SYG202130)

10.12030/j.cjee.202312010

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