What is the performance index of the air filter?
Release time:
2021-02-14
Filtration accuracy of air filter
Refers to the larger diameter of the impurity particles that are allowed to pass through. The key to filter accuracy is the filter element. You can choose different according to the needs of the following componentsAir filtercomponents to achieve the corresponding filtering accuracy.
Air filter flow characteristics
Refers to the relationship curve between the air flow through the air filter and the pressure drop at both ends of the filter under a certain inlet pressure. In actual use, it is recommended to choose within the range of pressure loss less than 0.03MPa. In the air cleaner, the main body and the filter element affect the flow characteristics.
Water distribution efficiency of air filter
Refers to the ratio of separated moisture to the moisture in the air at the inlet. Usually,Air filterThe water separation efficiency is not less than 80%. The main influence of water diversion efficiency is the deflector.
Air filters have different filtration efficiencies at different concentrations.
(1) The dust concentration of weighing efficiency is expressed by mass concentration (g/m)
(2) Counting efficiency dust concentration is expressed by counting concentration (pc/L)
(3) Sodium flame efficiency with sodium chloride solid particles as dust source. The concentration of sodium chloride particles was measured by a photoelectric flame photometer. The sodium flame efficiency is comparable to the counting efficiency.
Air filter resistance
Under the rated air volume, the resistance of the new filter is called the initial resistance; under the rated air volume, when the dust content is large enough to clean or replace the filter material, the resistance of the filter is called the final resistance.
Air filterDust holding capacity
Under the rated air volume, when the resistance of the filter reaches the final resistance, the total mass of dust particles contained in it is called the dust holding capacity of the filter.
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