Discussion on Air Volume of Clean Room Air Conditioning System The clean room is a method of diluting the polluted air in the room with clean air that has been filtered through three stages (primary, medium, high) or using the piston effect to apply clean air to squeeze the polluted air out of the clean room to achieve different degrees of cleanliness. Therefore, the air volume of the clean air conditioning system is the key to ensure the cleanliness. The air volume calculation mainly considers the following factors: 1. The non-unidirectional flow clean room is generally suitable for Class 6, 7, 8, 9 (that is, the thousand, ten thousand, and one hundred thousand levels of the original US Federal Standard FS-209E). The clean room with low cleanliness requirements is To achieve a certain degree of cleanliness by dilution, the required air volume is correspondingly smaller. The value of the air supply volume is generally determined by the number of air changes per hour. At the same time, the air supply volume required to eliminate the heating and cooling load needs to be checked. . 2. The air volume of the unidirectional flow clean room is determined by the air flow rate of the clean room section. It must be stated here that the values ​​of the lower limit and upper limit are a reasonable range of values, to avoid the view that the higher the wind speed of the cross section, the higher the cleanliness level. The level of cleanliness level is also related to the filtration efficiency of the high-efficiency filter, and the particle size of the filter particles, do not blindly pursue excessive cross-sectional wind speed and large air volume. 3. The airflow velocity in the clean room work area should also meet the production process and indoor staff health requirements. 4. Determination of fresh air volume of clean room air conditioning system. The fresh air volume of the clean room air-conditioning system is the sum of the air volume to compensate for the process exhaust air of the clean room and the value of maintaining the positive pressure. At the same time, it must also ensure that the fresh air volume supplied to the clean room is not less than 40m³ per person per hour. value. However, it must be emphasized here that the demand for fresh air volume of the clean air-conditioning system is greater than that of ordinary air-conditioning systems. In addition to meeting the above requirements, the fresh air volume must be strictly controlled. Because the energy consumption required for fresh air treatment is large, the strict control of the fresh air volume is the clean air-conditioning system. An important energy saving measure. LED is favored by manufacturers because of its energy saving, small size, long life and safe DC voltage power supply. The ultra-thin LED copy table adopts the backlight technology of liquid crystal display. Produced, the light evenness is very good, enough to be comparable to the display. In addition, the panel material adopts reinforced safety optical glass with excellent hardness and light transmittance, which is scratch-resistant, aging-resistant, long-lived, and good evenness. It has also been popular with animation workers. A3 LED Light Pad,LED Light Pad Diamond Painting,LED Light Up Drawing Pad Guangdong Jishengke Industrial Co.,Ltd , https://www.dgjskpad.com
Discussion on Air Volume of Clean Room Air Conditioning System