The purification workshop is to purify the factory wall and the top plate is generally made of 50mm thick sandwich color steel plate, which is characterized by beautiful appearance and strong rigidity. Arc corners, doors, window frames, etc. are generally made of special alumina profiles. The floor can be epoxy self-flowing floor or high-grade wear-resistant plastic floor. If it has anti-static requirements, anti-static type can be used. The return air duct is made of hot-dip zinc plate, and the flame-retardant PF foam plastic plate with good purification effect is attached. The high-efficiency air supply port is made of stainless steel frame, which is beautiful and clean. The punched stencil is made of lacquered aluminum plate, which is rust-free and non-sticky. It should be cleaned. First, the working principle of the purification workshop Number of air changes: 100000 levels ≥ 15 times; 10000 levels ≥ 20 times; 1000 ≥ 30 times. Pressure difference: the average wind speed of the main workshop to adjacent rooms ≥5Pa: 10, 100 0.3-0.5m/s; temperature winter >16°C; summer <26°C; fluctuation ±2°C. The temperature is 45-65%; the humidity of the GMP powder workshop is about 50%; the humidity in the electronic workshop is slightly higher to avoid static electricity. Noise ≤ 65dB (A); fresh air replenishment is 10% -30% of total air supply; air flow → initial effect purification → air conditioning → medium efficiency purification → fan air supply → pipeline → high efficiency purifying air outlet → blowing into the room → taking away Particles such as dust bacteria → return air blinds → initial purification to repeat the above process, you can achieve the purpose of purification. Second, the application of purification workshop Activated carbon is a porous carbonaceous material with a highly developed pore structure. The porous structure of activated carbon provides a large amount of surface area and can be in full contact with gases (impurities), thereby imparting unique adsorption properties to activated carbon. It makes it very easy to achieve the purpose of absorbing and collecting impurities. Just like magnetic force, all molecules have mutual gravitational disadvantages: ordinary activated carbon can not adsorb so toxic gases, and the efficiency is low and easy to desorb. Third, the characteristics of the purification workshop The working principle of high-voltage electrostatic adsorption and dust removal is adopted. The electrostatic type is the working principle of high-voltage electrostatic adsorption and dust removal. The cathode line in the electrostatic field generates corona discharge under the action of high-voltage static electricity, and a large amount of negative ions are generated in the corona layer, and the negative ions continuously move toward the anode under the action of the electrostatic field. When the dust in the air passes through the electric field, the dust is charged by the collision of the negative ions, and the dust after the charge is also subjected to the action of the electrostatic field, moving toward the anode (dust collecting pole), and releasing the electric charge after reaching the anode. Disadvantages: It can remove the dust (can not remove the poisonous gas), the performance is lower than the mechanical type, slow, and easy to produce ozone.