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With laminar flow pass box or air shower pass box, how to choose and distinguish?
With laminar flow pass box or air shower pass box, how to choose and distinguish?The pass box is divided into ordinary pass box, laminar flow pass box, and air shower pass box in three categories. Ordinary pass box is very good to understand, can achieve double door interlocking, in the process of transferring items for the clean room does not produce internal and external air cross-pollution can be, sometimes equipped with ultraviolet germicidal lamps, to achieve the function of sterilization.Laminar flow pass box and air shower pass box are the big difference between different functions. The wind shower pass box, as the name suggests is to rely on the wind shower to achieve the function of dust removal. Take the air shower pass box as an example, one of the advantageous characteristics of its dust removal is high wind speed, wind speed is 25m/s, or more. To achieve high wind speed and large air volume fan is essential, coupled with a low resistance to high-efficiency filters, clean air through the built-in stainless steel nozzle high-speed spray to achieve the effect of dust removal. The air shower pass box is also equipped with an automatic control system that can adjust different wind speeds and blowing times according to the needs of the transferred items. Air shower pass box is generally applicable to industrial clean room, such as electronics, radio and television, automotive, food, and other industries, the role of items in the pass box through the clean air will be removed the surface dust, so as not to bring dust into the clean room. Laminar flow pass box, its working principle is through laminar flow filtration way to make the pass box inside the formation of a hundred-level or even higher level of a clean environment, when the laminar flow pass box opens the door there will be no contaminated air in the clean area. When the goods are put into the laminar flow pass box, the centrifugal fan sends the air through the liquid tank-type high-efficiency filter with higher sealing to form a clean wind, and the goods will be self-cleaned by the laminar flow at the wind speed of 0.3~0.8m/s. Because of the high cleanliness requirements of the laminar flow pass box, it is equipped with a differential pressure gauge to remind the timely replacement of high-efficiency filters, a DOP detection port, and a PAO dust port to ensure the integrity of the filter element. To ensure the cleanliness inside the window, the laminar flow pass box is also equipped with an intelligent control system to set the laminar flow time, the time has not reached the laminar flow time will not be able to take out the items inside the window. Laminar flow pass box is generally used in the biological medical industry, laminar flow pass box is by the new version of cGMP standard design. |
