German
French
Italian
Portuguese
Japanese
Korrean
Russian
How is the self-cleaning function of the laminar flow pass box implemented?
How is the self-cleaning function of the laminar flow pass box implemented?The self-cleaning function of the laminar flow transfer window is mainly achieved by the following technical means:1. Laminar airflow design Unidirectional air circulation: A high-efficiency filter (H14 level) is installed on the top or side, and the air is filtered to form unidirectional laminar flow at a stable wind speed (0.38-0.57m/s), usually using the up and down mode to ensure that the internal airflow is uniform without dead Angle. Continuous self-purification: The air circulation is driven by the fan, and the internal air is constantly filtered to maintain the cleanliness of more than 100 levels (such as ISO 5 level) to avoid the retention of pollutants. 2. Efficient filtration system Multistage filtration: The air is double filtered by the initial effect and high-efficiency filter to remove ≥0.3μm particles, and the filtration efficiency is more than 99.99%. Self-circulation purification: Some models are equipped with FFU (fan filter unit), which actively extracts the internal air circulation filtration to enhance the self-purification effect. 3. Pressure control technology Dynamic pressure regulation: The pressure of the inner chamber is adjusted in real-time through the storage box, fan, and pressure sensor. For example: When the low clean area is opened on the side, the pressure in the inner cavity is higher than the outside to prevent polluted air from entering. When the side door of the high clean area is opened, the pressure of the inner cavity is lower than that of the outside to avoid the leakage of internal pollution. Differential pressure monitoring: Some high-end models integrate differential pressure displays to ensure that pressure always meets clean requirements. 4. UV sterilization and sealing design Ultraviolet sterilization: Built-in ultraviolet lamp (such as wavelength 254nm) to sterilize the surface of the item, usually irradiation time ≥15 minutes. Double-door interlocking: Mechanical or electronic interlocking devices ensure that both doors cannot be opened at the same time, blocking unpurified airflow. High air tightness structure: EVA sealing strip, circular Angle design, reduce dust accumulation and prevent leakage. 5. Special function extension VHP sterilization: Some models integrate a vaporized hydrogen peroxide (VHP) sterilization module, which sterilizes the inner cavity through the VH inlet/outlet, suitable for highly sensitive scenarios. Modular design: can be customized work table (such as no power roller), intercom, differential pressure meter, etc., to meet different transmission needs. Sum up Laminar flow transfer window through the synergistic effect of laminar flow air flow, efficient filtration, pressure control, and sterilization technology, to achieve continuous self-purification, to ensure the cleanliness of goods and the environment during the transfer process, especially for biopharmaceutical, high-precision electronics, and other pollution-sensitive industries. |
