Filtration Mechanisms 过滤机制

qilv

Filtration Mechanisms 过滤机制
Gravity: large particles simply fall out of the air stream
重力：大微粒直接从空气中掉落。
Direct interception: A particle follows the upstream flow is collected when it collides
with or touches the filter fiber. For very large particles sieving occurs when the
collected particles are large than the filter openings.
直接拦截：跟随气流移动的微粒在碰触过滤纤维的时候被收集，当微粒大于过滤
器的孔径时，则直接被筛分。
Inertial impaction: The inertia of the particle caused it to deviate from its initial
streamline and collide with the fiber of the filter
惯性撞击：微粒的惯性使它偏离最初的轨迹，与过滤纤维碰触而被收集。
Diffusion: Particles<0.5um have a small enough mass that their trajectories are altered
by collision with gas molecules
扩散：小于0.5um的微粒在与气体分子碰撞时改变运动轨迹。（布朗运动）
Electrostatic mechanisms: Electrical charges on the either the particle or the fiber or
both create attractive forces between particle and the filter or particle to particle
静电机制：微粒或过滤纤维上的电荷使两者之间或微粒与微粒之间产生吸引力。

yongge

沙发，很不错的分享

胜利者

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海子

学习了，谢谢楼主的分享~~

nana8802

沙发，很不错的分享