SU1351627A2 - Filtering element - Google Patents

Abstract

The invention relates to the purification of liquids by filtration and improves the homogeneity of the filtrate. For this, the filter element is equipped with thin-layer porous pads 6, made in the form of truncated cones facing small bases opposite each other and placed between variable porosity disks 4 and perforated w 5 which also have the form of truncated cones. The porosity of the gaskets 6 is equal to the smallest porosity of the discs 4. The fluid being cleaned moves from non-peripheral to the center. Regardless of the trajectory of the fluid flow, the latter will at least once pass through the region with the lowest porosity, either in the disk 4 or in the gasket 6, 1, C, C / / .481Shaaa1a8a and ayasaam; oo

Description

1135

The invention relates to the purification of liquids by filtration and can be used in the purification of petroleum products from contamination in the chemical, non-refining and other branches of the national economy.

The purpose of the invention is to increase the uniformity of the filtrate.

The drawing shows the filter element, the overall view ,.

The filtering element contains a mesh frame 1, the top and not the caps 2 and 3, a filter bag made in the form of a set of porous discs 4 and perforated gaskets 5, which are truncated cones arranged in pairs of small bases: towards each other . The filter element is provided with thin-layer porous gaskets 6, also made in the form of truncated conesJ installed between the discs 4 and the perforated gaskets 5 and facing the small bases to each other. The porous disks 4 are clamped between the perforated plates and the gaskets 5 so that their porosity is variable in the direction of fluid flow, with the smallest porosity in the volume between the small bases and the largest between the large bases of the cones. The porosity of the thin pads 6 is equal to the smallest porosity of the disks 4,

The filter element works as follows.

The liquid to be cleaned flows through the outer surface of the filter element and passes from the periphery to the center sequentially through the disks 4, thin-layer porous gaskets 6 and perforated gaskets 5, flows into the adjacent disks 4 and through the network setter T, Vishnkova Editor M. Kelemesh Tehred I. Veres Corrector A , Tsk

Order 5515/5 Circulation 657 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5

Production and printing company, Uzhgorod, st. Project, 4

2

The frame comes to the consumer. In this case, due to the uneven compression of the disks 4, the filtered liquid to the initial ps. The operating period of the filter element moves mainly along the current lines having the lowest hydraulic resistance, t, e, in the region having the largest pore size. The quality of cleaning liquid (filtration)

this will be determined by the porosity of the thin-layer gasket 6, hereinafter, as the filter element, first of all, areas

having the smallest hydraulic

resistance, there is a redistribution of fluid flow in the area with a smaller pore structure. Filtration quality regardless

the direction of flow of the fluid is determined by the porosity of the gasket b.

The use of thin-layer porous-gaskets allows to ensure the stability of the quality of the cleaning fluid during the entire period of operation of the filter element,

Claims (1)

Invention Formula Filtering element according to the model No. 11539475, characterized in that, in order to improve the uniformity of the filtrate, the filtering element is provided with thin-layer porous gaskets 5, made in the form of truncated cones, otgshovlennyh between porous disks and gaskets and facing a small base to each other, with the porosity of a thin layer of puncture, the cap is equal to the smallest porosity of the disks.