Abstract
A series of experiments by air purification on fibrous filtering nozzles was made. It is experimentally shown that the fibrous filter can operate in a wide rate range. The degree of trapping of fine aerosols of glass was 99% at a linear rate of 0.01 m/s. the degree of capture decreased to 85% at the increasing of filtration rate up to 0.06 m/s. Dustiness of the air ranged from 3 to 5 g/m3 at the course of the experiment. Hydraulic resistance changed from 5 to 25 mm of water column. The calculated data of resistance and falling of pressure on fibrous filters are given; these data were received on the equations from various sources in comparison with experimentally obtained data. According to the results of series of experiments the amendment of the well-known Fuchsian equation is calculated for calculation of the resistance of fibrous air filter. This amendment considers a form and defects of surface of the fibers received by centrifugal-spinneret method.
Highlights
Currently the polymeric fibrous materials are widely used in the industry as filters for air purification from dust and aerosols, for capture of hydrocarbons
In the USSR for thin purification of ventilating emissions of the enterprises the cell filters with the volume nonwoven filtering fabric were used
The filtering materials of FPP type (Petryanov's filters) were manufactured from perchlorvinyl fibers with diameter from 1.5 to 2.5 microns by TU 16-16-2813-84, these materials are used in filters of thin purification and for production of means of individual protection of respiratory organs (MIPRO) of "Petal" type
Summary
1. Introduction Currently the polymeric fibrous materials are widely used in the industry as filters for air purification from dust and aerosols, for capture of hydrocarbons. Compared with the fibers from vegetable raw materials the polymeric fibrous materials have greater chemical resistance and can work in wide range of temperatures and pH environment [1].
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