Application range of HEPA filter and resistance deployment

05/08/2020

Nowadays, mining minerals and industrial progress will cause many air quality problems. Almost every city faces the problem of air pollution every day. People are becoming more aware of environmental protection. People realize that air filtration devices need to take care of people more. Therefore, HEPA filters have a wide range of applications. Scope of application.

First of all, HEPA filters are widely used in residential construction and industrial construction to improve air quality. In fact, due to the long-term use of air conditioners and computers, the indoor environment contains a lot of particulate matter, which requires high-efficiency filters to change the air quality. In addition, HEPA filters are also widely used in the food industry. Now people have a higher pursuit of food. In order to ensure the novel taste of food, if traditional disinfection alone cannot meet people's needs, the aid of a filter is needed to remove the peculiar smell and add flavor. At the same time, with the aid of the filter, the food processing process can achieve aseptic operation, effectively increase the nutrition in the food, and at the same time make the food more delicious, so that people can enjoy the delicious food under safe conditions. Rest assured to eat. Filters have entered people's lives, bringing people more novel air, safer food, and so on. They play an indelible role in people's normal lives. Therefore, filters are widely used in all aspects.

The resistance difference of each high-efficiency filter will affect the balance of the airflow and the uniformity of the flow. A single high-efficiency filter with too high or too low resistance should be removed during installation. HEPA filters with similar resistance should be arranged in the same room. HEPA filters with different resistances in the same room should also be evenly dispersed.

For the HEPA filter on the same air supply surface in the one-way flow clean room, the requirement of resistance difference is more important. According to the "Code for Clean Room Construction and Acceptance", the following relationships should be met:

The actual resistance value of each unit (underrated air volume) = (0.95~1.05) * the average actual resistance of each unit on the air supply surface.