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Detailed analysis of the working principle of horizontal laminar flow clean workbench
Detailed analysis of the working principle of horizontal laminar flow clean workbenchThe horizontal laminar flow clean workbench is a high-end experimental equipment widely used in microbiology laboratories, pharmaceutical production, electronic manufacturing, and other fields. It filters the indoor air and blows it evenly to the operating area through a series of filtration and exhaust systems, thereby ensuring the cleanliness, temperature, and humidity of the operating area.The horizontal laminar flow clean workbench mainly consists of the following parts: 1. Operation area: This area has an open design and is usually used for operating samples, stationery, etc. The size of the operating area can be adjusted as needed. 2. Filter: Usually two types of filters are used: high-efficiency filter and primary filter. High-efficiency filters usually use HEPA (High-Efficiency Particulate Air) filters or ULPA (Ultra Low Penetration Air) filters, which can filter more than 99.99% of air particles; primary filters usually use G4 level, which can filter larger dust particles. 3. Exhaust fan: The exhaust fan is the core component and is usually installed under or behind the workbench. The exhaust fan exhausts the air in the operating area through the suction and exhaust ducts and filters out the particles. 4. Control panel: The control panel is used to control the switch, temperature, humidity, wind speed, and other parameters of the flow clean workbench. Staff can adjust these parameters according to experimental needs. The horizontal laminar flow clean workbench adopts laminar flow technology, also known as subsonic fluid mechanics technology. It filters the external air and blows it evenly to the operating area through the filtration and exhaust system, thereby ensuring the cleanliness, temperature, and humidity of the operating area. The specific principles are as follows: 1. Filter: Filter the external air through a primary filter and a high-efficiency filter to remove tiny particles such as bacteria, viruses, and dust, so that the discharged air reaches a certain level of cleanliness. 2. Exhaust fan: Use the exhaust fan to inhale the polluted gas in the operating area, further filter it through the filter, and finally discharge the clean air. The exhaust system not only ensures air cleanliness in the operating area but also controls room temperature and humidity. 3. Laminar flow technology: Laminar flow technology is used to blow clean air downwards evenly at a certain speed, forming a state similar to a waterfall. In this state, tiny particles such as bacteria and dust cannot rise and are taken away into the exhaust system, thus achieving effective protection of the operating area. |
