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What is the working principle of the anti-static air shower?
What is the working principle of the anti-static air shower?The working principle of the anti-static air shower is to ensure the efficient cleaning of personnel or items before entering the clean area and avoid electrostatic adsorption dust pollution through the dual mechanism of air purification and static electricity elimination. The following is its core workflow:1. Air purification process Air filtration: The ambient air is first removed by the primary effect filter, then pressed into the static pressure box by the fan, and further filtered through the high-efficiency filter (HEPA/ULPA) to ensure that the cleanliness of the blown air reaches 99.99% (0.3μm dust). High-speed blowing: The filtered clean air is sprayed from a multi-angle rotating nozzle at a high speed of 25-30m/s, covering the surface of the human body or objects, and blowing away particles such as dust and hair. Cycle purification: The blown dust returns to the primary filter with the airflow, forming an internal cycle to reduce the introduction of external pollution. 2. Esd elimination mechanism Ion neutralization: The built-in ion wind bar releases positive and negative ions through high voltage corona discharge to neutralize the static charge on the surface of the body or objects and eliminate static electricity. For example, positive static electricity is neutralized by negative ions and vice versa. Humidity control (Optional): Some devices increase the internal humidity to reduce surface resistance and reduce indirect electrostatic discharge. 3. Intelligent control process Entry trigger: After personnel or items enter the air shower, infrared induction automatically starts the fan, and the double-door electronic interlock prevents unpurified air from entering the clean area. Shower and rotation tips: Voice prompts the person to rotate the body 360° to ensure full coverage; The shower time is usually preset to 15 seconds (adjustable). Complete unlocking: After the blow is over, the exit door is unlocked, the entrance door is kept locked, the personnel enters the clean area, and the system resumes the standby state. Key technical features Dual protection: dust removal and electrostatic removal are completed simultaneously, especially suitable for electrostatic-sensitive industries such as electronics and semiconductors. Structure design: stainless steel inner wall, rotary nozzle, intelligent control panel (display time, status) to improve efficiency. Safety configuration: an emergency stop button, energy-saving lighting, and fault alarm to ensure safe operation. Sum up Anti-static air shower through high-speed clean air to remove particles, combined with ion neutralization to eliminate static electricity, with intelligent control, to achieve a comprehensive purification of personnel/items before entering the clean area, is the core equipment to ensure a highly clean environment. |
