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Points to note when installing high efficiency filters
Points to note when installing high efficiency filters1. When transporting and storing the high-efficiency filter, it should be set aside in the direction marked by the production plant.The transport process should be carried out gently and prevent violent vibration and collision so as not to cause artificial damage. 2. Before installation of high-efficiency filters, the clean room must be cleaned and wiped, and if there is any dust accumulation inside the purified air conditioning system, it should be cleaned and wiped again to achieve clean requirements. If the high-efficiency filter is installed in the technical mezzanine or ceiling, the technical mezzanine or ceiling should also be fully cleaned and wiped. 3. After the clean room and purified air conditioning system reach the cleaning requirements, the purified air conditioning system must be test run. For more than 12h continuous operation, clean and wipe the clean room again after the installation of a high-efficiency filter immediately. 4. Before installation of the high-efficiency filter, the package must be unpacked at the installation site for appearance inspection, which contains filter paper, sealant, and frame with or without burr and rust spot (metal frame): with or without product certificate of conformity, whether the technical performance meets the design requirements. Then pick up the leakage. After inspection and picking up qualified should be installed immediately. Installation should be based on the size of the resistance of each filter for reasonable deployment, for one-way flow, the same air outlet or air supply surface between the filters, each rated resistance and the average resistance of each unit should be less than 5% difference. 5. The frame for installing high-efficiency filters should be flat. The deviation of the installation frame flatness of each high-efficiency filter is agreed to be no more than 1mm, and the arrow on the outer frame of the filter and the direction of airflow should be kept consistent. When it is installed vertically, the filter paper crease should be perpendicular to the ground. 6. When the sealing between the high-efficiency filter and the frame is generally adopted, such as a gasket, sticker, negative pressure seal, liquid tank seal, and double ring seal, the packing surface, the surface of the filter frame, and the surface of the frame and the liquid tank must be wiped clean. The thickness of the sealing gasket should not exceed 8mm and the compression rate is 25%~30%. Its joint form and material should meet the design requirements, and there should be no leakage at each joint of the frame. When adopting the double-ring seal, do not block the eyelet on the ring cavity when pasting the seal; both the double-ring seal and the negative pressure seal must keep the negative pressure pipe open. 7. At present, most of the filters are installed using the gasket method, because the sponge rubber sheet is closed-cell and has good airtightness, so it is generally used as the sealing material. If necessary, it is better to put some glass glue evenly on the sealing strip. When connecting the filter to the hydrostatic box, the force should be evenly distributed around. Allow 24 hours for the glass glue to dry before running the purification system. |
