+86 18186671616
Jason@cleanroomequips.com
Concepts related to clean rooms
A Clean Room controls airborne particle concentration, minimizing their introduction and retention while regulating temperature, humidity, and pressure. Air cleanliness is determined by dust concentration, with specific levels defined by ranges of suspended particles sized 0.1 to 5μm.
Classification of Clean Rooms
According to the cleanliness level, it is divided into level 1, level 2, level 3, level 4, level 5, level 6, level 7, level 8, and level 9. Level 9 is the lowest level.
According to the airflow organization
Clean rooms can be divided into three categories: unidirectional flow, laminar flow, and Clean Rooms.
Airflow with parallel streamlines in a single direction and consistent Wind speed on the cross section. Among them, the unidirectional flow perpendicular to the horizontal plane is the vertical unidirectional flow and the unidirectional flow parallel to the horizontal plane is the horizontal unidirectional flow.
Turbulent flow Non-unidirectional flow Clean room Any clean room with airflow that does not meet the definition of unidirectional flow.
Mixed flow clean room: A clean room with airflow that combines unidirectional flow and non-unidirectional flow.
According to the type of suspended particles in the air that the clean room needs to control, the clean room can be divided into industrial clean room and biological clean room.
Industrial clean room, its main control parameters are temperature, humidity, wind speed, airflow organization, and cleanliness. Biological clean room It is the same as industrial clean room. The difference is that the control parameters increase the concentration of bacteria in the control room.
The detection status of clean room can be divided into three categories
Empty state A clean room with complete facilities. All pipelines are connected and running, but there are no production equipment, materials and production personnel.
Static A clean room with complete facilities that has been fully built. The production equipment has been installed and tested in the manner agreed by the owner and supplier, but there are no production personnel on site.
Dynamic The facilities are in a state of operation in the prescribed manner and there are prescribed personnel on site working in the prescribed manner.
The difference between clean room and general ventilation and Air conditioning system
The difference between clean room and general ventilation and air conditioning system Clean room air conditioning is a type of air conditioning project. It not only has certain requirements on the temperature, humidity and wind speed of indoor air, but also has high requirements on the number of dust particles and bacterial concentration in the air.
Therefore, it not only has special requirements for the design and construction of ventilation projects, but also has special requirements and corresponding technical measures for the building layout, material selection, construction process, construction methods, water, heating, electricity and the design and construction of the process itself. Its cost is also increased accordingly.
