The air filter is mainly used in air filtration equipment biogas generator, air filter function is to ensure that the suction operation process biogas power generation units in the air is clean. It is an important part of biogas generator set. According to its principle, air filter can be divided into filter, centrifugal, oil bath and compound.
The commonly used air filter in the biogas generating unit is filter type air filter filter, which is one of the accessories of the biogas generator set. The air filter mainly includes the inertial oil bath air filter, the paper dry air filter, the polyurethane filter core air filter and so on.
The inertia of the oil bath air filter after filtration and oil bath type inertial filter filter filtering and three stage filtration, two kinds of air filter through the filter type filter. The inertia oil bath air filter has the advantages of small intake resistance, adaptable to the dusty and sandy working environment and long service life. It used to be used in various types of automobiles and tractor engines.
But the efficiency of this air filter, low weight, high cost, inconvenient maintenance, in the car engine has been eliminated. Filter paper dry air filter made by microporous resin treated filter paper, filter paper folding, porous and loose, has certain mechanical strength and water resistance, has the advantages of high filtration efficiency, simple structure, light weight, low cost, convenient maintenance and so on, is currently in the air cleaner of the most widely used car.
The filter element of polyurethane filter air filter is made of soft, porous and sponge like polyurethane, and has strong adsorption capacity. The air filter has the advantage of paper dry air filter, but its mechanical strength is low, and it is widely used in car engine. The disadvantages of the latter two air filters are short service life and unreliable working under harsh environment conditions.
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