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A typical air shower room is a specially designed passage for staff and materials to enter the clean room. The intention is to reduce the dust and bacteria brought in by staff and materials when entering the clean room, and to serve as a closed and dust-free chamber with an airlock. It can generally be applied between all cleanrooms and cleanroom facilities.

The air shower first uses a high-efficiency air filter to filter the airflow, and then sprays it onto the workers and materials from different directions through a rotating nozzle. It can then remove dust from the surface of people and materials, and the air with dust is circulated again after passing through the primary and high-efficiency air filters. The overall design of the air shower room combines dynamic fluid dynamics, with fully automatic infrared induction blowing inside and humanized voice prompts throughout the entire process. The double door interlock is selected, which cannot be opened together or used to go out. When the air shower is working, the two doors must be tightly closed for forced blowing.

With the acceleration of industrial pace, some industries that require high cleanliness are also changing day by day. People are becoming more and more sensitive to pathogenic bacteria. However, the working environment of modern industry has to be in a space with high cleanliness that cannot be reached by nature. Although clean rooms or sterile rooms are now used as equipment for some sterile and dust-free purification projects, the biggest problem still lies in the workers. As workers are the biggest source of dust, it is difficult to remove the dust and dirt attached to their bodies when they enter the clean room or sterile room. Therefore, jet dust removal equipment should be installed in the air shower room to effectively remove the dust and dirt attached to their bodies and clothes. Bacteria.

The equipment in the air shower room is usually a pre filter screen, a main filter screen, a paint nozzle, and a supply fan. The filtering power of the pre filter screen is about 15%. The primary purpose is to remove larger dust particles, and this filtering device can use water washing or a vacuum cleaner for dust cleaning; The main filter is primarily designed to filter dust above 0.3um, with a filtering power of 99.99% or more. However, this type of filter equipment is very weak, so it needs to be reprocessed when blockage occurs; The primary purpose of a paint nozzle is to remove dust particles attached to the human body, and the desired effect is to peel off the particles; The primary function of a blower is to circulate clean air. The high static pressure air supply fan is selected, primarily for use during jet and air circulation.

In general, the air shower room is located at the entrance of the clean room or sterile room, and there should not be any empty space between it and the wall panels of the clean room. If there is a leak, pay attention to the equipment. Generally, the maintenance of equipment in the air shower room should be cleaned within a certain period of time according to the situation. Regarding the front filter screen, it can be cleaned with water or vacuum cleaning methods, usually 2-3 times a month. For the main filter, it needs to be tested 2 to 4 times a year, and the cleanroom needs to determine whether the equipment should be replaced based on wind speed or pressure measurements.

The article originates from Guangdong Purification Engineering: http://m.xwsk.com.cn/