| 多孔喷嘴PM10-PM2.5串级冲击式大气采样器的研制及应用 |
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| 引用本文： | 黄金星,陈延京,张林,陈欢林.多孔喷嘴PM10-PM2.5串级冲击式大气采样器的研制及应用[J].环境污染与防治,2006,28(3):235-238. |
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| 作者姓名： | 黄金星 陈延京 张林 陈欢林 |
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| 作者单位： | 浙江大学化学工程与生物工程系,浙江,杭州,310027 |
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| 摘 要： | 多孔喷嘴冲击式大气采样器广泛应用于大气环境监测,相对于单孔喷嘴采样器,它具有压差小、相同空气雷诺数下采样流量大等特点.利用Marple的冲击理论,设计了一种中流量PM10-PM2.5串级冲击式大气采样器,采样流量为100L/min.用该采样器进行实地测量,通过PM2.5/PM10的比值分析,该采样器测量的PM2.5/PM10数据基本与文献报道一致.
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| 关 键 词： | 冲击原理 大气采样器 切割直径 |
| 收稿时间： | 2005-08-02 |
| 修稿时间： | 2005-08-02 |
Design of multi-nozzle PM10 -PM2. 5 cascade impactor and its application |
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| Huang Jinxing,Chen Yanjing,Zhang Lin,Chen Huanlin.Design of multi-nozzle PM10 -PM2. 5 cascade impactor and its application[J].Environmental Pollution & Control,2006,28(3):235-238. |
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| Authors: | Huang Jinxing Chen Yanjing Zhang Lin Chen Huanlin |
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| Institution: | Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou Zhejiang 310027 |
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| Abstract: | Multi-nozzle impaetors are widely used to monitor air quality. Compared to single-nozzle at the same Reynolds number, multi-nozzle impactors have some merits such not causing much pressure drop, higher flow rate. Based on the impact theory developed by Marple and his coworker, a PM10 --PM2.5 cascade impactor is designed which can be used in the condition with mid-flowrate of 100 L/min. The data of PM2.5/PM10 sampled on-the-spot sampling demonstrate that this result is identical with data in the literature according to PM2.5/PM10 analysis. |
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| Keywords: | Impact theory Air sampler Cut off size |
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