ES1060237U - Filter for drip irrigation emitter (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Filter for drip irrigation emitter, provided in a base body before an internal labyrinth of fluid passage; characterized in that an outer front face of the base body (1) where the liquid fluid inlet is located, said front face incorporates a set of projections that generate fluid passage spaces, said projections comprising a combination of parallel straight elements determined with section circular (3) and triangular section (2), the latter with their vertices truncated according to a concentric curvature with the cylindrical projections (3), the height of the projections being greater than the pitch width between them; all in order to avoid the passage of particles that can clog the emitter. (Machine-translation by Google Translate, not legally binding)

Description

Filter for drip irrigation emitter.

Object of the invention

The present invention, as expressed in the set forth in this specification, refers to a filter for emitter of drip irrigation of those located in principle in the inside a risk tube and faced with a hole fluid outlet established in the wall of that irrigation pipe, of so that the fluid must pass through the emitter for control, before reaching the outlet of the irrigation pipe, although it is equally applicable to any other configuration of irrigation emitter.

Starting from this premise, the objective of the invention are filtering means in order to avoid seals and a malfunction of the emitter assembly, of so that we control particle size at all times that are introduced inside and in turn make the filter in issue is not saturated by particle accumulation avoiding the correct fluid flow

Background of the invention

There are currently different types of drip irrigation emitters that are associated with irrigation pipes by drip, in correspondence with fluid outlet holes, generally water, said holes established in the wall itself of the pipes.

Obviously, the flow of water, before reach the exit holes, you need to pass through the respective issuers, thus regulating control at the output of the fluid.

On the other hand, the fluid sometimes has impurities or small solid particles that from a certain size they can cause clogging and / or malfunction of the emitters

Different filtering systems are used that are put before the issuer's entrance that they have an acceptable performance until they begin to seal.

They have little filtering surface and are usually formed by small grids with a logically smaller step than maximum particle size that can flow smoothly through the inside said transmitter.

Other filters, such as the one described in the Patent European No. EP 1,435,196, are more effective, but could still improve the filtering surface and the problems of obturation.

Description of the invention

In order to achieve the objectives and avoid drawbacks mentioned in the previous sections, the invention proposes a filter for drip irrigation emitter that characterized in that it includes filtering means to retain small particles and impurities that a liquid fluid might contain, such as water, when flowing through a pipe with emitters arranged in correspondence with exit holes established in the wall of that pipe.

Those filtering media consist of a set of projections close to each other that generate narrow spaces of passage of the fluid, so that before the fluid reaches the inside each issuer, it must necessarily pass through that set of emerging highlights of a surface of the emitter, of  form that the impurities of the liquid that could clog or impair the proper functioning of the transmitter will be retained Among those highlights.

For example, the issuer is of the type that they comprise a base body and a cover associated with said body base.

An outer face of the base body incorporates a recessed, from whose bottom emerge the filtering highlights that are seen interrupted by a fluid inlet inside the emitter, then the fluid reaching the chamber that communicates with the outside through the exit hole.

Next to facilitate a better understanding of this descriptive report and being an integral part of the same accompany some figures in which with character illustrative and not limiting the object of the invention.

Brief description of the drawings

Figure 1.- Shows a perspective view of the filter for drip irrigation emitter, object of the invention.

Figure 2.- Shows a plan view of the issuer where the structure of the filtering elements is represented.

Description of the preferred embodiment

Considering the numbering adopted in the figures, the filter for drip irrigation emitter is determined to from a base body 1 and a cover, not shown in the figures, cover that is attached and fixed to the base body 1, obtaining so in principle a transmitter with two faces.

From said base body 1 a multitude of Highlights 2 and 3 as filtering means to prevent the passage of particles 7 inside the emitter in order to avoid like this seals and system malfunction.

Such highlights 2 and 3 have a distribution and shapes that generate steps of the same width. To do this, they have arranged cylindrical projections 3 and others in general triangular 2 with its truncated vertices according to a curved plane 4, truncated vertices 4 that are faced with the curvature of such cylindrical projections 3 in order to always maintain the same passage width

Obviously, the filtering step is calculated to allow the passage of particles smaller than 0.7 mm., so that a particle of that size or smaller, will not block the emitter although it enters inside.

At one end of this recess of the base body 1 there is a bowl-shaped structure 5, whose side wall is affected by several radial steps 6 to allow entry of the fluid inside the emitter, having previously passed through the corresponding filtering zone with the multitude of projections 2 and 3.

Within the issuer there is obviously a labyrinth of passage of the fluid.

The fluid advance when it reaches the space of filtering is initially in a parallel direction 8 towards the Highlights 2 and 3, then taking a perpendicular direction 9 to said projections until reaching the radial steps 6, originating thus two phases in the filtering, so that in the first one the possible particles 7 will be embedded between the projections remaining retained and trapped essentially in the free end sections thereof, whereby, the passage of fluid in the second phase (advance perpendicular to the projections), will be secured, as It is shown in the detail of figure 1 where you see how the step of the fluid runs between two adjacent projections below the particle embedded between them without any problem.

Filtering in two phases gives us a high performance, ensuring the passage of fluid, even in the case in which the particles are embedded between the projections, as described above

The height of the projections is greater than the separation between them, so that if a particle got into between them, we would always have a fluid passage ensured by below it and also above in case the particle will be embedded between the highlights to a greater extent, in an area half height, or even when the particle was in contact with the bottom of where highlights 2 and 3 start.

On the other hand, the radial steps 6 are located by below the filter plane defined by the upper ends of projections 2 and 3, thus ensuring that the particles retained by the filter do not block the water inlet.

It should also be noted that the distribution of Highlights occupies almost the entire plane through which the water to the emitter, thus becoming a filter with a multitude of Filtering points optimizing their performance to the maximum.

Claims (6)

1. Filter for drip irrigation emitter, provided in a base body before an internal labyrinth of fluid passage; characterized in that an outer front face of the base body (1) where the liquid fluid inlet is located, said front face incorporates a set of projections that generate fluid passage spaces, said projections comprising a combination of determined straight parallel elements with section circular (3) and triangular section (2), the latter with their truncated vertices according to a concentric curvature (4) with the cylindrical projections (3), the height of the projections being greater than the passage width between them; all this in order to avoid the passage of particles that can block the
transmitter. 2. Filter for drip irrigation emitter, according to claim 1, characterized in that the projections are within a space limited by a perimeter partition. 3. Filter for drip irrigation emitter, according to any one of the preceding claims, characterized in that the limited fluid passage spaces between the projections are of the same width. 4. Filter for drip irrigation emitter, according to any one of the preceding claims, characterized in that the filtering is carried out in two phases:

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a first phase in which the fluid advance is in one direction parallel (8) to the highlights (2) and (3) when it reaches the space where are such highlights (2) and (3);

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a second phase where the fluid advance takes a direction perpendicular to the projections passing through them, even in the case that particles were embedded in the first phase between adjacent highlights.

5. Filter for drip irrigation emitter, according to any one of the preceding claims, characterized in that the height of the projections is greater than the separation between them; all this in order that if a particle got between these projections, we would always have a guaranteed fluid passage, either above it and / or below. 6. Filter for drip irrigation emitter, according to any one of the preceding claims, characterized in that the distribution of the projections covers the entire space faced with the entrance passage (6) to the emitter; all in order to optimize its performance to the maximum.