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What is the working principle of clean bench
What is the working principle of clean benchThe principle of the clean bench is that a centrifugal fan draws in gas from the natural environment, which first passes through an intermediate efficiency filter to filter out the large particles of floating dust; the remaining small particles over 0.3μm are then filtered out according to the HEPA filter paper called the "high-efficiency air outlet".Then, according to the HEPA filter paper called "high-efficiency air supply outlet", the remaining small particles of floating dust over 0.3μm will be filtered out. According to the double layer of filtration, into the clean bench cavity in the region of the work of the gas to achieve the clean norms of class 100, because germs and other microbial strains of bacteria in the air only adhere to the floating dust exist, so the clean bench to achieve the clean in addition to ensure the sterility of the test. Clean bench categorization: According to the actual operation method to carry out their classification can be divided into single single double-sided, single two-sided, two single double-sided, two two-sided, three single double-sided, and so on five kinds of clean workbench. According to its cyclone orientation, can be divided into horizontal single-sided flow clean bench, vertical single-sided flow clean bench, and non-single-sided flow clean bench. Horizontal single-side flow clean bench: filtered clean gas from the back to the front immediately blowing to the operator, is a very practical part of the clean bench, it is commonly used in electronic devices, national defense and security, instruments, instrumentation, instrument panels, the field of the pharmaceutical industry, and so on. Vertical single-side flow clean bench: Vertical flow refers to the filtered clean gas blown to the clean bench surface from top to bottom, and then blown out of the clean bench from the front to back, the vertical flow of the clean bench is generally in the laboratory, biomedical, optical industry chain, microelectronics technology, computer hard disc manufacturing, and other industry applications. |
