What are the key points of dust-free room design?
Release time:2019-12-19 source:
What are the key points of dust-free room design?
I. system design:
The air purification system in a dust-free room can be divided into horizontal laminar flow, vertical laminar flow and turbulent flow.
II. Cleanliness and air change times
The cleanliness of the room depends on the number of air changes per unit time. Therefore, carefully consider the working properties of the room and the production process requirements, and then determine the technical parameters of the purification system.
III. structure
In order to ensure that the air flow is almost free of computer interference, it is necessary to carry out structural design, and careful invoice can prevent the accumulation of dust anywhere in the room.
IV. design scheme
In order to determine the design scheme, the working properties of the room and the air flow conditions in it must be considered carefully. The workshop with large dust emission should not adopt the ground air supply form, and the workshop with high cleanliness requirements should be far away from other workshops as far as possible.
V. materials
As the ceiling of the dust-free room, the materials of the wall and floor must be materials that are not easy to crack, not easy to stick to particles, and hardly able to lift dust. In addition, according to the different working conditions of the room, it is necessary to consider whether the chemical properties of the materials are stable.
Pressure and air flow
In order to ensure the cleanliness of the room, it is necessary to prevent the polluted air from entering the room. To achieve this goal, positive pressure must be maintained in the room. In order to obtain the required room pressure, appropriate fresh air must be added.
VII. Auxiliary equipment
If necessary, some auxiliary equipment must be installed, such as the air indicator at the new air outlet, the transfer window on the partition, etc. these equipment must meet the requirements of the room, and must really understand its function.
VIII. Control of people and things
People and objects are the main sources of dust in the clean room, so they must be fully controlled. For example, before entering the clean room, all people must go through the clean system, change the clean clothes, and receive basic education on the function of the clean system.
IX. water supply, drainage and air supply device and power supply
According to the workshop to be operated, necessary water supply and drainage devices, air supply devices and power supply shall be provided. These devices and related equipment must be easy to use and design, and shall not contribute to the air purification system.
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