1. Before installing the filter, the clean room must be thoroughly cleaned and wiped. If there is dust inside the purified air-conditioning system, it should be cleaned and wiped again to meet the cleaning requirements. , if a filter is installed in a technical mezzanine or suspended ceiling, the technical mezzanine or suspended ceiling should also be thoroughly cleaned and wiped;
2. After the clean room and purification air-conditioning system meet the cleaning requirements, the purification air-conditioning system must be put into trial operation and run continuously for more than 12 hours. Clean and wipe the clean room again and install the filter immediately. ;
3. Vacuum filters should be transported and stored according to the direction marked by the manufacturer. They should be handled with care during transportation to prevent severe vibration and collision;
4. Before installing the vacuum filter, the package must be unpacked at the installation site for visual inspection, including whether the filter paper, sealant and frame are damaged;side length and diagonal and whether the thickness and size meet the requirements;whether the frame has burrs and rust spots (metal frame);whether there is a product certificate, whether the technical performance meets the design requirements, and then conduct leak detection. Those that pass the inspection and leak detection should be installed immediately. During installation, Make reasonable adjustments according to the resistance of each filter. For unidirectional flow, the difference between the rated resistance of each filter and the average resistance of each filter between the same air outlet or air supply surface should be less than 5%;
5. The frame for installing the vacuum filter should be flat. The allowable deviation of the flatness of the installation frame of each filter is no more than 1mm;
6. When sealing between the filter and the frame using gaskets, stickers, negative pressure seals, liquid tank seals and double-ring seals, the packing surface must be , wipe the filter frame surface, frame surface and liquid tank clean;
7. When installing the vacuum filter, the arrow on the outer frame should be consistent with the direction of air flow. When it is installed vertically, the creases of the filter paper should be perpendicular to the ground.
How vacuum filters work
First of all, we need to divide the container into upper and lower chambers with filter media, which is to form a simple filter. The suspension is added to the upper chamber, and then filtered through the filter under the action of this pressure. The medium enters the lower chamber and becomes filtrate, while the solid particles are left on the surface of the filter medium to form filter residue. Of course, during this filtration process, the filter residue layer on the surface of the filter medium slowly becomes thicker, and the resistance for the liquid to pass through the filter layer slowly increases, and the filtration speed decreases accordingly. When the filter chamber is full of filter residue or the filtration speed is very low, filtration will stop, and then the filter residue will be removed to regenerate the filter medium. In this way, the one-time filtration cycle process will be successfully completed.
< strong>Vacuum filter Before using it, we must first check whether the inlet and outlet pipes have been installed properly, and then fix the inlet and outlet pipes in the groove so that the inlet and outlet can be reached Not easy to swing. Then open the exhaust valve and then open the medicine valve, let the water flow from the dosing valve through the dosing tank and then into the pump and the inlet pipe, so that the inlet pipe is completely filled with liquid, or open the upper cover of the filter. Remove the upper cover and pour water into the filter cartridge so that the inlet pipe is completely filled with liquid. Before starting the motor, check whether the motor wiring voltage is correct to prevent errors. Before starting the motor, lock the dosing valve and then open the exhaust valve to allow the gas to be discharged from the conduit into the dosing tank.
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