Views:0 Author:Site Editor Publish Time: 2020-11-25 Origin:Site
air filterIt is a device for air filtration. Its main function is to filter the dust in the air, so that the gas entering the room can be purified. It is widely used in clean places in electronics, crystal materials, medical and pharmaceutical, biological laboratories and other industries.
Next, snyli Purification Editor will take you to understand the four important indicators that affect the air filter:
The air volume passing the filter = the wind speed of the filter section × the filter cross-sectional area (m²) × 3600m³
Under the rated air volume, the difference between the air dust concentration N1 and N2 before and after the filter and the percentage of the air dust concentration before the filter is called the filter power A.
It is often more intuitive to use the penetration rate to evaluate the final effect of the filter. The penetration rate K refers to the percentage of dust concentration in the air after the filter and before the filter.
The resistance encountered by the air flowing through the filter is part of the total resistance of the system. The resistance increases as the filtration rate increases.
The resistance of the filter must be evaluated based on the rated air volume, and the resistance of the filter increases with the increase of dust; the resistance when the new filter is used is called the initial resistance, and the resistance when the dust holding capacity reaches the specified maximum is called the final resistance.
Generally, the final resistance of medium-efficiency and high-efficiency filters is about twice the initial resistance.
It is the amount of dust inside the filter when the final resistance is reached at the rated air volume.
According to the parameters of the rated dust holding capacity of the air filter, the service life of the air filter can be calculated. The service life of the air filter generally takes the time to reach the rated dust holding capacity as the service life of the filter.