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How to distinguish between a clean room and a clean booth
How to distinguish between a clean room and a clean boothClean rooms and clean booths are rooms with a certain level of cleanliness, and clean booths are generally known as simple clean rooms. Their common point is through a specific design and supporting equipment, eliminating dust particles and pollutants in the air within the space, the cleanliness of the space, air velocity and distribution, and noise and vibration control in the specified range.The difference between a clean room and a clean booth is that a clean booth is a kind of air purification equipment that can improve local cleanliness. A small area of dozens of square meters, dozens of square meters suitable for a simple clean booth, an area of 300 square meters or more, it is recommended to do the traditional clean room, between the two is assembled clean room, a combination of the clean booth and clean room features, the area of 10 square meters from 10 square meters to 300 square meters can be, but also has the characteristics of reusable. In addition, the clean room cost is high, the construction period is long; the clean booth cost is low, the construction period is short, can be used alone, can also be used with the assembly line, more convenient and flexible. The working principle of clean room and clean booth is also fundamentally different. The main enclosure of the clean room is generally made of color steel plate, which is more airtight than the clean booth. Clean air is sent to the clean room from the air supply port, mixing and diluting the original high dust concentration air, diluting the polluted airflow evenly diffused outside, and reducing the concentration of indoor dust, so that the cleanliness meets the requirements. It is worth noting that the airflow in the clean room is not unidirectional, and there will be reflux and vortex in the airflow process. Positive pressure is maintained through the purification system air volume is greater than the return air volume and exhaust air volume and the sum of the methods to achieve. The working principle of the clean booth is different. Clean booths are usually installed in clean rooms to quickly achieve a local high cleanliness purification effect. Hanging curtains or curtains at the bottom of the vent, filtered clean airflow to 0.45 m / s ± 20% of the constant speed from the air supply device from top to bottom. The clean airflow forms a vertical unidirectional flow in the same plane pushes the air inside the clean room to the bottom along the whole cross-section, and then discharges it out of the clean room to realize the purification effect. So the clean booth does not rely on mixing and dilution, but on clean airflow to push out the polluted air in the space. |
