Combining push-pull airflow and top draft hood for local exhaust of tyre vulcanization process
Combining push-pull airflow and top draft hood for local exhaust of tyre vulcanization process
复制标题
DOI：
10.1016/j.enbenv.2020.04.008
复制
发表时间：
2020-07
期刊：
影响因子：
--
通讯作者：
Kai Liu;Shengwei Yang;Lingjie Zeng;Jun Gao;Yumei Hou;Changsheng Cao;S. Bo;Mo Xiangjin-;Z. Qingyu;Hou Chun
中科院分区：
文献类型：
--
作者：
Kai Liu;Shengwei Yang;Lingjie Zeng;Jun Gao;Yumei Hou;Changsheng Cao;S. Bo;Mo Xiangjin-;Z. Qingyu;Hou Chun
本文提出采用推拉式气流结合顶部抽风罩对橡胶车间进行局部排风。通过现场测量来研究排放源的特性，同时根据测量结果进行数值模拟来测试捕集效率，并进一步优化推风速度、烟罩高度和排风量等各种参数。与高挂式头罩相比，低挂式头罩能以较低的排气率有效捕获轮胎产生的污染物。低挂烟罩在排风量6000 m3/h、推风速度5m/s的情况下捕集效率达到98.18%。结果表明，新型通风装置能够以相对较低的排放率有效地收集污染物。
This paper proposes a push-pull airflow combined with a top draft hood to conduct local exhaust in a rubber workshop. Field measurements are carried out to investigate the characteristics of the emission source, while numerical simulation is performed based on the measurement to test the capture efficiency and to further optimize various parameters including push velocity, hood height and exhaust air rate. Compared with the high-hanging hood, the low-hanging hood can effectively capture the pollutant generated by tyre with lower exhaust air rate. The capture efficiency of the low-hanging hood reaches 98.18% with exhaust air rate of 6000 m3/h and push air velocity of 5m/s. The results indicates that the new ventilation appliance can effectively collect the pollutant at a relatively low exhaust rate.