Are you tired of working in Samsung Electronics Factory in Xiqing District, Tianjin? I want to go in. I heard that the management inside is very strict. What is the dust-free workshop for?

General electronics factory work is not hard, just assembly line operation.

The management system of dust-free workshop is relatively stricter.

The so-called clean room is a relatively closed space, and the cleanliness is controlled (an important indicator is the number of dust particles in the air per unit volume). Of course, sometimes the temperature and humidity, pressure difference, illumination, noise and other parameters in this environment should also be controlled. Therefore, a more scientific and complete name should be called "controlled environment". Generally, a relatively closed space is formed through the enclosure structure, and then the clean air supply unit sends the air that has undergone multi-stage filtration and temperature and humidity adjustment into this space (usually, the air supply cabinet has two over-concerns, and the end is efficiently filtered), and at the same time, the air in the space is pumped back to the clean air supply unit through the return air system. Of course, we must mix some fresh air, otherwise people will feel bored or even bored if we continue to close the cycle.

To build a dust-free workshop, we should first set up corresponding function rooms according to the actual production process, and at the same time consider the direction of people flow and work efficiency. On the basis of the preliminary plan, the cleanliness levels of clean area, unclean area and clean area should be determined. Then the corresponding air exchange times or cross-sectional wind speed should be determined. Then it is necessary to arrange the return air outlet and design the clean air supply unit (size, location, fan air conditioning selection, etc. ), design return air and fresh air pipes, etc. Of course, strong and weak water supply and drainage should also be designed.

For more purification knowledge, please refer to Baidu's "Great Purification"!