Said to the high efficiency filter that is one of the devices in our life cannot little, and the special nature of the device its filtering effect, and the effect was the air flow and the device is inseparable from, so right now and we'll see about the calculation method of air volume!

Actually about the air volume and high efficiency filter calculation method there are two different categories:

A, standards, the calculation method of diaphragm filter

= 25.27/1000/3600 = 1, filter paper section wind speed 0.011 meters/seconds, namely when passes through the filter paper section wind speed 0.011 meters/seconds, filter paper at the beginning of the resistance in 200 pa;

2, followed by air filter of the calculation of a 900 * 600 * 370 filter 0.88 * 0.58 * 280 * 0.35 * 2 * 0.011 * 3600 = 3961 m3 / h, in which:

0.88 is the effective length of the filter paper;

0.58 is the effective width of filter paper;

280 to 1 m standard filters filter paper fold number;

0.35 the actual height of the filter paper;

2 for the double meaning;

0.011 for the filter section wind speed;

3600 for an hour is equal to 3600 seconds.

3, next, we as a national standard 484 * 484 * 220 high efficiency filter to calculate: rated volume is 1000 m3 / H, resistance at the beginning in the 200 pa, filter paper for 28 folding / 10 cm apart, filter paper effective area counted 280 * 0.2 * 0.475 * 0.475 * 2 = 25.27 square meters, in which:

0.47 is the effective length of the filter paper;

0.475 is the effective width of filter paper;

Filter paper folding double 280 to 1 m;

0.2 the actual height of filter paper.

Second, the hepa filter according to wind speed and size to determine the air volume

1, normally the high efficiency filter, we use the rated the wind speed between 0.3 to 0.6 M/S, we can take the median 0.45;

2, a simple example, 1000 air volume efficiency filter size is: 484 * 484 * 220, only need to convert it can be concluded that the air volume.

This two is our common air volume calculation method, and high efficiency filter for air volume is when we were in the use of high efficiency air filter is a very important knowledge, therefore is a certain need to master!