Modular Sectorised Filter Element

Abstract

Modular sectorised filtering element consisting of a flat modular filter element whose surface has at least two concentric strips, the stacking of which forms a filter surface. This module allows the sectorised filtration of the fluid passing through it, with the possibility of the same filter surface also having parts dedicated simultaneously to filtration, washing, different degrees of filtration, etc. It is composed of an outer perimeter strip (1) with a zig-zag groove (4), an intermediate perimeter strip (2) with holes (6), which have radial walls (7), and concentric separation walls (8) of a stackable shape, and an inner perimeter strip (3) with a configuration similar to the outer strip (1).

Claims

1. Modular sectorised filtering element configured as a flat element with a circular crown shape or any other type of exterior shape (square, polygon, etc.) intended to form a filter surface by stacking a number of identical elements on a common axis. The elements are characterised in that their surface is formed by a number of strips that are concentric to the axis that will have at least two different shapes. One of them consists of grooving or relief defining a number of filter channels mostly with a radial direction while the other shape consists of concentric strips formed by a number of independent holes defined by a number of separation walls where each of the holes has at least one connection zone with the perimeter strip of filter channels, where both strips are radially aligned with respect to the sectorisation for the radial separation of the different channels across the entire element.

2. Modular sectorised filtering element according to claim 1, characterised in that each of the strips forming the channels has grooves at the front in a zigzag formed by a relief that protrudes over the circular crown and whose raised parts are set on concentric grooves located on the opposite side of the perimetric strip of the attached modular filter element.

3. Modular sectorised filtering element according to claim 1, characterised in that the holes are delimited by walls, which completely surround the hole in the front part of the element except in the area of the latter that is closest to the strip of filter channels, where the walls are open to allow the fluid from the filter channels into the strip holes to the other through said openings.

4. Modular sectorised filtering element according to claim 1, characterised in that the holes are arranged in two concentric strips delimited by a concentric separating wall that is mostly circular in shape.

5. Modular sectorised filtering element according to claim 1, characterised in that at the rear of the element the radial walls will be connected with closing walls positioned parallel to the concentric grooves, isolating the hole from the strip of filter channels.

6. Modular sectorised filtering element according to claim 1, characterised in that the walls are stackable, thus fitting the walls of an element to those of the attached filter elements.

7. Modular sectorised filtering element according to claim 1, characterised in that the end strips (the outermost and the innermost) are of the grooved type.

8. Modular sectorised filtering element according to claim 1 characterised in that the numerous modular filter elements are fastened in place by a mechanical fastening system through different holes arranged in the outermost part.

Description

DESCRIPTION OF THE DRAWINGS

[0038] To complement the description that is being made and in order to facilitate better understanding of the specifications of the invention, illustrative, non-restrictive drawings are included as an integral part of this memorandum, described as follows:

[0039] FIG. 1. A layout view of the front of the modular filter element. Here, said element has three perimeter strips, where the outer strip and the inner strip consist of grooves of different microns for the filter of the water, while the intermediate strip consists of holes arranged in pairs and spaced from each other, where the holes positioned further to the exterior are connected to the outer perimeter strip and those positioned in the interior are connected to the inner perimeter strip. Each strip has been enlarged in the figure to make it easier to see.

[0040] FIG. 2. A layout view of the front part of the element of the previous figure, with an enlarged view of the concentric grooving of the outermost strip.

[0041] FIG. 3. The isometric of a set of assembled elements is shown forming a filter surface ready to be inserted in a filter cartridge.

DESCRIPTION OF THE PREFERRED REALISATION

[0042] In view of the aforementioned figures and according to the numbering system that is adopted, they show a preferred realisation of the invention, which comprises the parts and elements indicated and described in detail below, where this example does not aim to limit the scope thereof in any way.

[0043] The modular filter element is formed as a 1 mm-thick circular crown whose surface has three distinct perimeter strips. In this example, as the filtering element is circular, the strips form concentric circles; however, the base geometry can be of any type, conditioned only by the geometry of the cartridge in which the set of elements to be assembled is to be inserted.

[0044] The outer perimeter strip (1) has a zig-zag groove (4) formed by a relief that protrudes 0.5 mm above the base of the circular crown and whose raised parts rest on the concentric groove (5) of the front part of the perimeter strip (1) of the attached modular filter element. Said concentric grooves will have a height of 0.01 mm and a crest spacing of 0.01 mm

[0045] The zigzag of the groove (4) of the outer perimeter strip (1) will be occasionally interrupted by the holes for the mechanical fastening (10) of the elements, continued at said points by straight lines and returning to the previous shape once the hole for the mechanical fastening has been exceeded (10).

[0046] After the outer perimeter strip (1), there is an intermediate perimeter strip (2) with a series of holes (6) defined by a number of walls separated in radial fashion (7). These holes (6) are divided into two strips, one outer and one inner, by means of a concentric separating wall (8) arranged in the central part of the intermediate strip (2).

[0047] Both the radial (7) and concentric (8) walls will have a height relative to the base of the circular crown equal to that of the radial groove (4) of the outer (1) and inner (3) perimetric strips, and their shapes will be such that they will be stackable, where the walls of one element fits into those of the attached filter elements to prevent them from moving. Thus, joining together the filter elements will create, by means of the holes (6), a series of channels through which the water will flow.

[0048] Finally, in the inner part of the crown, there is a new inner perimeter strip (3) which will have a configuration similar to that of the outer perimeter strip (1), modifying the relief of the radial and concentric grooves of the front and rear parts, respectively.

[0049] The transition between two different types of strip is made in such a way that the radial walls (7) connect at the front part of the element with the proximal end of the radial groove (4) to form a closed space from which the water flowing through the channels formed by the holes (6) can come out only through the grooves of the outer and inner perimeter strips. At the rear of the element, the radial walls (7) will be connected to the closure walls (9) positioned parallel to the concentric grooves (5), such that the latter is separated from the hole to force the water through the front part of the filter element.

[0050] An example of the advantages offered by this element may be the possibility of using the channels created by the holes (6) of the intermediate strip (2) to carry water separately, taking water through the outer holes for filtering through the outer perimeter strip (1) while, at the same time, the inner part washes the inner perimeter strip (3) by forcing water from the inner part of the crown through said inner perimeter strip (3) and dislodging the water with debris through the channels created by the strip of inner holes without it coming into contact with the filter water flowing simultaneously through the channels created by the outer holes of the intermediate strip (2). Once the wash cycle has been completed, the direction of the water flow can be alternated to clean the outer perimeter strip (1) while the inner perimeter strip (3) performs the filter functions.