Bag type intermediate filter is a common filtration device, which is widely used in the field of air purification. It has a bag-type structure, which usually consists of a metal frame and a filter bag made of plastic or fiberglass. The filtration efficiency of the intermediate filter is between that of the high-efficiency filter and the primary filter, which can remove impurities and harmful gases from larger particles, but the filtration effect of microorganisms such as finer particles and bacteria is relatively weak.
The working principle of the bag intermediate filter is mainly to intercept the suspended particles, dust, pollen and other impurities in the air on the surface of the filter bag through the physical interception effect of the filter bag, so as to achieve the purpose of purifying the air. When more and more impurities accumulate on the surface of the filter bag, it will affect the circulation of air and lead to a decrease in the filtration effect of the filter. Therefore, the filter bag needs to be replaced or cleaned regularly to ensure the normal operation of the filter.
Bag intermediate filters are used in a wide range of applications, such as clean rooms, hospital operating rooms, electronics industry, food industry and other fields. In these areas, the bag intermediate filter can be used as a pre-filter for other HEPA filters to extend the service life of HEPA filters, and can also be used as a terminal filter to provide a certain air purification effect.
When using the bag type intermediate filter, the following points need to be noted: first, it is necessary to choose the appropriate model and specification, and choose according to the actual demand and air flow and other factors; Secondly, the filter bag should be checked and cleaned regularly to ensure its normal operation; In addition, it is also necessary to pay attention to the installation position and airflow direction to ensure that the air can pass through the filter bag evenly to avoid dead corners or short circuits; Finally, it is necessary to pay attention to maintenance and maintenance, and replace damaged or aging filter bags in time to ensure their long-term stable working effect.
To sum up, the bag intermediate filter is a common air purification equipment with a wide range of applications and good purification effect. In the process of use, it is necessary to pay attention to the selection of appropriate models and specifications, regular inspection and cleaning, attention to the installation position and airflow direction, as well as maintenance and maintenance, etc., in order to ensure its normal operation and long-term stable working effect.