Pass box has a trick to control pollution and prevent pollution

The transfer window is an effective device to prevent pollution. Its characteristic is that the double doors are interlocked, which effectively reduces the number of times that staff enter the clean room for transporting items and prevents outside air from entering the clean room. The complete set of equipment is economical and is a transit device for the clean room. At the same time, the transfer window is also an air purification equipment used in conjunction with the clean room, which is suitable for the transfer of medium and small goods between the clean room and the clean room or between the clean room and the non-clean room. By using the transfer window, the number of door openings and closings in the clean room can be reduced, and the pollution of the clean area can be reduced to a degree. Products are widely used in air purification places such as micro-technology, electronics industry, biological laboratories, pharmaceutical factories, hospitals, and food processing industries.

Transfer window


The air shower type transfer window is designed according to the type of the air shower room. The fan quickly blows the air out through the high-efficiency filter into clean air. The clean air is sprayed from the stainless steel sprinkler head and nozzle, and the airflow speed is as high as 20M/ Above S, it is possible to quickly remove dust particles attached to the surface of the object. After the circulating air, the double filtration and purification effect of the primary filter is remarkable, and the usability is strong. It is a kind of clean room auxiliary equipment, which is mainly used to transfer small objects between clean rooms and non-clean areas or between clean rooms of different levels and pressures. On the one hand, it acts as an air lock and prevents high-level clean rooms. The medium and high pressure is relieved. On the other hand, the blowing effect is realized during the transfer process to ensure that the items entering the clean area are clean and reduce the cross-contamination caused by the items; the blowing time can be adjusted arbitrarily according to the manual switch, and the limit is limited. To achieve the effect of blowing and energy saving.

Transfer window structure


The operation of the air shower type transfer window is as follows:
1. Materials entering and exiting the clean area must be strictly separated from the human flow channel, and the material entering and exiting from the production workshop is dedicated to the channel.
2. When the material enters, the raw and auxiliary materials are unpacked by the person in charge of the preparation work process or the exterior is cleaned, and then sent to the workshop raw and auxiliary material temporary storage room through the transfer window; the inner packaging materials are removed from the outer temporary storage room after the outer packaging, It will be sent to the inner compartment through the delivery window. The workshop integrator and the person in charge of the preparation and inner packaging processes handle the handover of materials.
3. When passing through the pass-through window, the "one open and one closed" requirement for the inner and outer doors of the pass-through window must be strictly implemented, and the two doors cannot be opened at the same time. Open the outer door to put the material in and close the door first, then open the inner door to take the material out, close the door, and so on.
4. When the materials in the clean area are sent out, the materials should be transported to the relevant material intermediate station first, and the materials should be moved out of the clean area according to the reverse procedure when the materials enter.
5. All semi-finished products transported from the clean area must be sent from the transfer window to the external temporary storage room, and then transferred to the external packaging room through the logistics channel.
6. Materials and wastes that are easily polluted should be transported to non-clean areas from their dedicated delivery windows.
7. After the materials are in and out, clean up the cleaning room or intermediate station site and the hygiene of the transfer window in time, close the internal and external passage doors of the transfer window, and do a good job of cleaning and disinfection.
We need to pay attention to the following specifications when operating the air shower transfer window:
1. Use 0.5% peracetic acid or 5% iodophor to wipe the items to be delivered.
2. Open the outer door of the transfer window, quickly place the items to be transferred, spray the transfer window with 0.5% peracetic acid, and close the outer door of the transfer window.
3. Turn on the UV lamp in the delivery window, and irradiate the items to be delivered with UV for no less than 15 minutes.
4. Notify the experimenter or staff in the barrier system to open the door inside the pass window and take out the items.
5. Close the door inside the pass window. It is mainly used for the transfer of small items between the clean area and the clean area or between the clean area and the non-clean area to reduce the number of door openings in the clean room and reduce the pollution of the clean area to a low level.