Transfer Window Working Principles And Precautions

As an auxiliary equipment of the clean room, the transfer window is mainly used for the transfer of small items between the clean area and the clean area, and the non-clean area and the clean area, so as to reduce the number of door openings in the clean room and minimize the damage to the clean area. Pollution. The transfer window is widely used in microtechnology, biological laboratory, pharmaceutical factory, hospital, food processing industry, LCD, electronic factory and other places that need air purification.

The transfer window is made of stainless steel plate, smooth and clean. The double doors are interlocked with each other, which can effectively prevent cross-contamination. It is equipped with electronic or mechanical interlocking devices, and is equipped with ultraviolet germicidal lamps.

There are three types of transfer windows:

1. Electronic chain transfer window

2. Mechanical interlock transfer window

3. Self-cleaning transfer window

According to the working principle, the transfer window can be divided into air shower transfer window, ordinary transfer window and laminar flow transfer window. Various types of transfer windows can be made according to actual requirements.

Optional accessories: interphone, germicidal lamp and other related functional accessories.

1. The working surface of the short-distance transmission window is made of stainless steel, which is smooth, clean and wear-resistant.

2. The work surface of the long-distance transfer window adopts an unpowered roller, which is easy and convenient to transfer items.

3. The doors on both sides are equipped with mechanical interlocking or electronic interlocking and electronic latching devices to ensure that the doors on both sides cannot be opened at the same time.

4. Various non-standard sizes and floor-to-ceiling transfer windows can be customized according to customer needs.

5. The air speed of the air outlet of the air nozzle is as high as 20s or more.

6. Adopt high-efficiency filter with partition, the filtration efficiency is: 99.99%, to ensure the purification level.

7. Using EVA sealing material, high sealing performance.

8. Can be paired with a calling walkie-talkie

Working principle：

1. Mechanical interlocking device: the internal use of mechanical form to achieve interlocking, when one door is opened, the other door cannot be opened, and the other door must be closed before the other door can be opened.

2. Electronic interlocking device: the internal use of integrated circuits, electromagnetic locks, control panels, indicator lights, etc. to achieve interlocking, when one of the doors is opened, the door opening indicator of the other door does not light up, indicating that the door cannot be opened, and electromagnetic The lock action realizes interlocking. When the door is closed, the electromagnetic lock of the other door starts to work, and the indicator light will light up, indicating that the other door can be opened.

Instructions

The transfer window is managed according to the cleanliness of the higher-level clean area connected to it. For example, the transfer window connected between the coding room and the filling room should be managed according to the requirements of the filling room. After get off work, the operator in the clean area is responsible for wiping the internal surfaces of the transfer window clean, and turning on the ultraviolet sterilization lamp for 30 minutes.

1. Materials entering and leaving the clean area must be strictly separated from the flow channel, and enter and exit through the special channel for materials in the production workshop.

2. When the material enters, the raw and auxiliary materials will be unpacked by the person in charge of the preparation class or the surface will be cleaned, and then sent to the temporary storage room of raw materials and auxiliary materials in the workshop through the transfer window; It is sent to the inner package room through the transfer window. The workshop integrator handles the material handover with the person in charge of the preparation and internal packaging processes.

3. When passing through the transfer window, the regulations of "one opening and one closing" of the inner and outer doors of the transfer window must be strictly implemented, and the two doors cannot be opened at the same time. Open the outer door and put the material in, then close the door first, then open the inner door to take out the material, 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 entered.

5. All semi-finished products shipped from the clean area must be sent from the transfer window to the outer temporary storage room, and then transferred to the outer packaging room through the logistics channel.

6. Materials and wastes that are very likely to cause pollution should be transported from their dedicated transfer windows to non-clean areas.

7. After the material is in and out, the site of each clearing room or intermediate station and the sanitation of the transfer window should be cleaned in time, the inner and outer access doors of the transfer window should be closed, and the cleaning and disinfection work should be done well.

Precautions

1. The transfer window is suitable for general vehicle transportation. During transportation, it can prevent rain and snow from attacking, so as to avoid damage and rust. ​​

2. The transfer window should be stored in a warehouse where the temperature is -10℃~+40℃, the relative humidity is not more than 80%, and there is no corrosive gas such as acid and alkali. ​​

3. When unpacking, it should be operated in a civilized manner, and there should be no rude or barbaric operation to avoid personal injury. ​​

4. After unpacking, please first confirm whether the product is the specified product, and then carefully check the contents of the packing list to see if there are any missing parts, and whether each part is damaged due to transportation.

Operation process

1. Wipe the item to be delivered with 0.5% peracetic acid or 5% iodophor solution.

2. Open the outer door of the transfer window, quickly place the items to be transferred, disinfect the transfer window with 0.5% peracetic acid spray, and close the outer door of the transfer window.

3. Turn on the UV lamp in the transfer window, and irradiate the items to be transferred with UV light for no less than 15 minutes.

4. Notify the experimenter or staff in the barrier system to open the inner door of the transfer window and take out the items.

5. Close the inner door of the transfer window.