What is a clean room?
Pure room is a controlled environment with a specialized design for variable control, such as 1) Air particle density per cubic meter, or 2) room temperature. Clean rooms are essential for manufacturing processes that require a high degree of cleanliness or accurate temperature, for example in the computer industry. Pure rooms are most commonly used during the formation of microchips and drugs, but are used widely in various other important industries. Clean rooms are designed by mechanical engineers. The geographical position with the highest concentration of clean rooms is the California Silicon Valley area.
Cleanrooms first appeared at the beginning of 60. In 1961, Willis Whitfield invented Sandia Laboratories in collaboration with colleagues new ventilation concept - the idea of "unidirectional" or "laminar flow" of air plugs - pouring the way and get outES exhaust port on the opposite side of the room. Because the flow is laminar, as the center of the river, it allows the elimination of a significant percentage of air particles that would otherwise be captured in the vowry and beliefs of the conventional ventilation plan. This procedure made it possible to create rooms with a very low level of air contaminating compared to previous standards. In a clean laminar flow room, the air is pumped into the room via the HEPA filter (highly efficient particles). Since the air flow must be maintained thoroughly one -way, only one wall or ceiling serves as a continuous source of clean air, with the opposite wall or floor serves as an exhaust grid to remove excess air and maintain the flow in motion.
The purity of any one -way clean flow is directly proportional to the air speed moving around the room. Because the volume of air supplied to one-way flow rooms are Many Times (10-100) larger than those supplied to commonly ventilated rooms, MOHOU be capital and operating costs for the construction of these rooms very high. However, many thousands of such rooms have been built since the 1960s, at different levels of purity and as much as much of our economy becomes dependent on the production of fine products sensitive to contamination, the use of clean rooms will continue to increase.