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用高速超净化的空气流吹除人身衣服表面浮尘的一种通风净化设备被称为吹淋室,一段装置于超净房间的人员入口处,用以减少人员和脏空气对超净车间的直接污染.影响吹淋室效率的因素是很多的.臂如:空气吹淋速度、气流组织、空气净化程度、衣服的材质、被吹淋人员的配合,吹淋时间……等等.本文只着重从空气动力学方面闸述单人吹淋室的吹淋理论,共分四部分。首先,从空气动力学的角度分析空气吹淋室能够吹除人体衣服表面灰尘的机理;继而,论述了能够吹除人体衣服表面灰尘的最低吹淋速度不得小于21米/秒。文章的第三部分,比较了吹淋室的各种气流组织型式.并设计出一种旋流式气流组织方案.本节的最后.指出淹没紊流射流理论可以做为吹淋室空气动力计算的基础。文章的最后,对吹淋效率有很大影响的各种喷咀进行了分析,并列出了它们的空气动力性能,而这些性能又往往被人们所忽视.
A kind of ventilation and purification equipment that blows the dust on the surface of the human body with a high-speed ultra-clean air stream is called a shower room, and a section of equipment is installed at the entrance of the clean room to reduce the direct personnel and dirty air to the clean workshop. Pollution. There are many factors affecting the efficiency of the shower. Arms such as: air blowing speed, airflow organization, degree of air purification, material of the clothes, match of the person being blown, blowing time, etc. This article focuses only on From the aspect of aerodynamics, we describe the blowing principle of a single showering chamber and divide it into four parts. First of all, from the perspective of aerodynamics, the mechanism that the air showering chamber can blow out the dust on the surface of human clothes is analyzed. Then, the minimum blowing speed that can remove dust on the surface of human clothes is not less than 21m/s. In the third part of the article, we compare the various airflow patterns of the shower chamber and design a cyclonic airflow organization scheme. At the end of this section, we point out that the submerged turbulent jet theory can be used as the aerodynamic calculation of the shower chamber. Foundation. At the end of the article, various nozzles that have a great influence on the blowing efficiency are analyzed and their aerodynamic performance is listed. These performances are often overlooked by people.