| PM10冲击采样器切割头设计参数对切割粒径的影响 |
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| 引用本文： | 李丰果,杨冠玲,何振江. PM10冲击采样器切割头设计参数对切割粒径的影响[J]. 环境工程学报, 2003, 4(1): 26-29 |
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| 作者姓名： | 李丰果 杨冠玲 何振江 |
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| 作者单位： | 华南师范大学物理系,广州,510631 |
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| 基金项目： | 广州市环保项目 (穗计国 9931) |
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| 摘 要： | 本文从颗粒在气流中的受力情况分析入手 ,得到冲击采样器中喷嘴喷出后颗粒的运动轨迹方程以及运动轨迹与采样器切割头设计参数的关系式。分析了PM10空气采样器的切割原理 ,并利用数值计算研究颗粒在不同的流量、喷嘴尺寸及喷嘴与冲击板的距离下的运动轨迹 ,从而得到切割头设计参数对切割粒径的影响
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| 关 键 词： | PM10空气采样器 切割原理 设计参数 切割粒径 |
| 修稿时间： | 2002-08-15 |
The influence of design parameters for PM10 impactor on the cutpoint diameter |
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| Li Fengguo Yang Guanling He Zhenjiang. The influence of design parameters for PM10 impactor on the cutpoint diameter[J]. Techniques and Equipment for Environmental Pollution Control, 2003, 4(1): 26-29 |
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| Authors: | Li Fengguo Yang Guanling He Zhenjiang |
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| Abstract: | Based on the analysis of the forces exerted on particles in air flow, the track equation which describe particles jetted from nozzle in air sampler and formula between the track and design parameters of impactor are obtained. The cutpoint principle of PM10 air sampler is analyzed and the tracks of particles are studied by numerical computing under the different flow, nozzle dimension and distance between nozzle and impact board. The results indicate that the parameters influence on the cutpoint diameter. |
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| Keywords: | PM10 air sampler cutpoint principle design parameters cutpoint diameter |
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