| 封闭大空间焊接烟尘污染控制的实验研究 |
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| 引用本文： | 史建国,茅清希,孙莉华.封闭大空间焊接烟尘污染控制的实验研究[J].同济大学学报(自然科学版),1995(6). |
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| 作者姓名： | 史建国 茅清希 孙莉华 |
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| 作者单位： | 同济大学热能工程系 |
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| 摘 要： | 针对船舱里的焊接烟尘污染，采用吹吸气流装置为控制手段对焊接烟尘进行控制．运用相似理论制作了模型。以ＣＯ２模拟污染物，进行了实验研究．通过对ＣＯ２进出口浓度的分析，得出了临界断面的位置和极限工况，而且用乙二醇发烟，作为示踪剂，进行流场显示．
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| 关 键 词： | 吹吸式通风 临界断面 极限工况 轴心速度 |
Experimental Research on the Control of Fume in Large Close Space |
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| Shi Jianguo, Mao Qingxi, Sun Lihua.Experimental Research on the Control of Fume in Large Close Space[J].Journal of Tongji University(Natural Science),1995(6). |
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| Authors: | Shi Jianguo Mao Qingxi Sun Lihua |
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| Abstract: | To remove, from cargo tanks, fume and smoke generated by welding,We designed and developed push-pull ventilation system. Design model is based on similar theory, and CO2 is taked as the simulated pollutant. With the analysis of inlet and exit CO2 concentiation, the critical position and condition are given.Flow field is visualized with glycol. |
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| Keywords: | Push-pull ventilation Critical condition Critical position Axisvelocity |
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