FILTER OF FINE PURIFICATION OF LIQUIDS AND\OR GASES Russian patent published in 2004 - IPC

FIELD: devices for fine purification of liquids and\or gasses.

SUBSTANCE: the invention is dealt with the devices for fine purification of liquids and\or gasses from suspensions, bacteria, viruses and chemical compounds dissolved in water and may be used both for individual consumers and for the industrial purposes. A filter for fine purification of liquids contains a body, a branch-pipe for a filtrate withdrawal, a filtering element made in the form of diaphragms made out off a microcapillary film creating a closed volume, in which a collector is formed. The body is made out of polymers and has a plane wavy surface. The filtering element is made out of a polymeric tracking diaphragm of = 10-50 microns thick and with open cylindrical through pores of a clear dimension from 0.01 microns up to 0.40 microns, or out of a polymeric tracking diaphragm of 20-30 microns thick with open conical through pores of a diameter equal to 0.2-0.3 microns and the number of pores about 5x10⁸ per 1 cm². The diaphragm is fixed by means of thermal soldering, the collector is formed by the surface of the body and diaphragms and filled in with a porous material with open pores of the size of 0.5-0.6 microns and with porosity of P_c P_d , and rigidity of the material of the filler of the collector R_cf P_sp , where P_c is open porosity of the material of the collector, 10ⁿ/cm²; P_d - porosity of diaphragms of the filtering element, 10ⁿ/cm²; _{Rsp c - specific rigidity of the material of the collector, MPa;Prsp d f - specific pressure on the filter element diaphragm, MPa. The filter is a multi-unit one with a serial or in parallel connection of units. The technical result is increased reliability and the service life of the device at operation under excessive pressure of a liquid and-or a gas.}

EFFECT: the invention allows to increase reliability and the service life of the device at operation under excessive pressure of a liquid and-or a gas.

3 cl, 4 dwg