Cleanliness 100,000 means: actually is the workshop cleanliness standards.
Workshop cleanliness is divided into: hundred, thousand, ten thousand. One hundred thousand level is a production workshop cleanliness standards, mainly used for medical equipment production workshop, food, precision instruments, electronic equipment production workshop.
Cleanliness 100,000 hardware conditions
1, dust particles
100,000 clean room requirements for each cubic gas diameter greater than or equal to the number of 0.5um gray less than 100,000, the lower the content of the dust particles in the air, indoor air is The lower the content of dust particles in the air, the cleaner the indoor air.
2, temperature and humidity
100,000 clean room temperature and humidity requirements, the winter temperature in the 20 ~ 22 ℃, 24 ~ 26 ℃ in summer, fluctuations of ± 2 ℃. The humidity in the clean room is controlled at 30-50% in winter and 50-70% in summer.
3, the number of air changes
Want to make the cleanliness of the clean room up to standard, then the number of air changes should be the corresponding standard requirements. Outdoor air carries dust, bacteria and other pollutants particles into the room before, must be filtered through the filter unit clean filtration to enter. One hundred thousand clean room provisions of 18-25 air changes per hour, the total purification time does not exceed 40 minutes.
4, distribution of illumination
100,000 clean room general illumination value should be ≥ 300Lx; auxiliary workshop, air shower room, material areas, corridors and other illumination value is appropriate for the 200-300Lx.
5, the pressure difference value should be consistent
Pressure difference value Consistent with the main purpose is to ensure that the air flows only from the clean area to the non-clean area, to avoid reflux. The same clean level of pressure difference between the clean room should be the same, different clean levels of pressure difference between neighboring clean room should be ≥ 5Pa, clean room and non-clean room pressure difference should be ≥ 10Pa.
Clean room purification process
Generally through the primary filtration, intermediate filtration, high-efficiency filtration, and so on the three Filtration section.
Primary purification of airflow humidification section heating section table cold section of the intermediate purification fan air ducts efficient purification of air blowing into the room to take away particles such as dust, bacteria, and other return air shutters primary purification Repeat the above process, you can achieve the purpose of purification.