The airflow in the clean room is an important factor affecting the performance of the clean room. Generally, the airflow speed of the clean room is between 0.25~0.5m/s. This airflow speed belongs to the breeze area and is easily disturbed by the actions of people and machines. . Although increasing the wind speed can suppress the influence of this disturbance and maintain cleanliness, the increase in wind speed will affect the increase in operating costs, so when the required cleanliness level is met, it can be supplied at the most appropriate wind speed. Achieving proper wind speed supply to achieve economical effect.
On the other hand, in order to achieve the stable effect of clean room cleanliness, the maintenance of uniform airflow is also an important factor. If the uniform airflow cannot be maintained, it means that the wind speed is different. Achieving high cleanliness is actually difficult.
To maintain a uniform airflow in the vertical laminar flow direction: (a) the wind speed on the blow-out surface must not have speed differences; (b) the wind speed on the suction surface of the floor return panel must not have speed differences. If the speed is too low or too high (0.2m/s, 0.7m/s), eddy currents will occur, while the speed of 0.5m/s will make the air flow more uniform. In general clean rooms, the wind speed is taken at 0.25~0.5m /s.
The above introduction is related to the principle of clean room and wind speed control.
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