WO2022084981A1

WO2022084981A1 - Drip irrigation arrangement

Info

Publication number: WO2022084981A1
Application number: PCT/IL2021/050910
Authority: WO
Inventors: Amir Cohen
Original assignee: Amir Cohen
Priority date: 2020-10-25
Filing date: 2021-07-28
Publication date: 2022-04-28

Abstract

A drip irrigation arrangement adapted to be mounted and to cover an opening of a tubular conduit or pipe. The inside of the pipe includes a housing formed around an inner space and having a fluid outlet sized and shaped to be mounted opposite to the opening. The housing includes one or more walls made of material that enables fluid flow therethrough from the tubular conduit into the inner space.

Description

DRIP IRRIGATION ARRANGEMENT

RELATED APPLICATION

This application claims the benefit of priority of Israel Patent Application No. 278287 filed on 25 October 2020, the contents of which are incorporated herein by reference in their entirety.

BACKGROUND

The present disclosure, in some embodiments thereof, relates to an irrigation system and, more specifically, but not exclusively, to an irrigation arrangement.

Water resources are dwindling on the one hand and on the other hand, the population is growing and demanding more food, therefore requiring better utilization of water resources. Flood irrigation is a common way of irrigation in the world. Flood irrigation may not require infrastructure of electricity, control, filters and pressure pumps like a drip irrigation system. On the other hand, flood irrigation is very wasteful in water, and may give low crop yields. Drip irrigation may require expensive infrastructure, which may not found in the vast majority of areas where there are crops in the world. Drip irrigation may require electrical infrastructure, control, filters and pressure pumps.

One type of emitter is known as a “dripper”. The dripper may be something as simple as a series of holes in a pipe. Whereas, a feature of more advanced drippers may be their ability to reduce and regulate the amount of water discharged. Regulation of water dispensed by a dripper may be for the dripper to provide a throttle action to assure about uniform rate of water flow depending on the pressure loses along the pipe is emitted. Therefore, the uniform rate of water flow emitted may be provided at each point along a length of a pipe using drippers with the throttle action.

SUMMARY

It is an object of the present invention to provide an apparatus and a system for a drip irrigation arrangement adapted to be mounted to cover an opening of a tubular conduit. Inside the tubular conduit a housing formed around an inner space, the housing having a fluid outlet sized and shaped to be mounted opposite to the opening. The housing includes one or more walls made of material that enables fluid flow therethrough from the tubular conduit into the inner space. The width and the length of the inner space may be at least five times the area of the fluid outlet. The inner space may be gradually expanding towards an inner wall of the tubular conduit. The housing may be welded to the inner wall of the tubular conduit. The housing may be a cup shaped housing. The housing may have opposing walls made of a capillary material and having opposing capillary flow directions.

The walls may be made of capillary medium or porous medium. The walls may facilitate cohesive flow, osmotic flow, diffusion flow, adhesive flow, capillary flow and other molecular force from the tubular conduit into the inner space. The walls may be formed with a fluid structure having a flow direction that is perpendicular to a longitudinal axis of the tubular conduit. The walls may be formed with a fluid structure having a flow direction that is parallel to a longitudinal axis of the tubular conduit. The walls may be formed by cutting a block comprising a capillary material perpendicularly to a capillary flow direction of fluid channels formed in the capillary material. The drip irrigation arrangement may have a diffusion membrane covering most of the fluid outlet. The drip irrigation arrangement may be monolithically made of a capillary material.

The drip irrigation arrangement may further include a block of fluid absorbing material mounted in the inner space.

A drip irrigation arrangement including a tubular conduit having along a longitudinal axis an inner wall layer and an outer wall layer forming a longitudinal lumen. One or more of the inner walls and the outer walls are made of a capillary or porous medium and another of the inner wall and the outer wall is made of diffusion fabric. The inner wall is made of diffusion fabric or the outer wall is made of diffusion fabric.

An emitter arrangement adapted to be connected and mounted to a water source, the emitter arrangement including a housing formed around an inner space. The inner space includes a fluid outlet, at least one inlet and a substrate of fluid absorbing material mounted in the inner space. A tube to form a dripper fluidly connects the one or more inlets and the fluid outlet to one another. The tube and the dripper may be welded together.

The housing may be sized and shaped to be mounted inside the tubular conduit. The housing may be external to the perforated irrigation conduit. The housing may have a shape of a drawing pin. The substrate may comprise granular particles. The emitter arrangement may be stapled into an opening of a plurality of openings of a perforated irrigation conduit. A lateral length of a slot of the outlet may be less than half of the tubular conduit diameter. The inlets may have a tip diameter wider than the opening. The fluid absorbing material may include an absorbent polymer.

An irrigation pipe including multiple holes along the longitudinal length of the irrigation pipe. A continuous element attached to the interior along the longitudinal length of the irrigation pipe opposite of the holes. Some of an irrigation liquid flowing from inner pipe passes through the continuous element and the holes to the exterior of the irrigation pipe. The continuous medium may include a capillary medium, a diffusing medium, a rope or any material or medium that the water can pass through.

The foregoing and other objects are achieved by the features of the independent claims. Further implementation forms are apparent from the dependent claims, the description and the figures.

Unless otherwise defined, all technical and/or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosure pertains. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of embodiments of the disclosure, exemplary methods and/or materials are described below. In case of conflict, the patent specification, including definitions, will control. In addition, the materials, methods, and examples are illustrative only and are not intended to be necessarily limiting.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

Some embodiments of the disclosure are herein described, by way of example only, with reference to the accompanying drawings. With specific reference now to the drawings in detail, it is stressed that the particulars shown are by way of example and for purposes of illustrative discussion of embodiments of the disclosure. In this regard, the description taken with the drawings makes apparent to those skilled in the art how embodiments of the disclosure may be practiced.

In the drawings:

FIG. 1A is a cross sectional drawing of a drip irrigation arrangement, in accordance with some embodiments;

FIG. IB is a cross sectional drawing of another drip irrigation arrangement, in accordance with some embodiments;

FIG. 1C and ID show respective cross sections AA and BB of figures FIG. 1A and IB, in accordance with some embodiments;

FIG. 2A is a cross sectional drawing of another drip irrigation arrangement, in accordance with some embodiments;

FIG. 2B is cross section of figure FIG. 2A, in accordance with some embodiments;

FIG. 3 is a perspective drawing of a monolithic structure, in accordance with some embodiments;

FIG. 4 is a cross sectional drawing of a drip irrigation arrangement, in accordance with some embodiments; FIG. 5 is a cross sectional drawing of a drip irrigation arrangement, in accordance with some embodiments, in accordance with some embodiments;

FIG. 6 is a cross sectional drawing of a drip irrigation arrangement, in accordance with some embodiments;

FIG. 7 is a cross sectional drawing of a drip irrigation arrangement, in accordance with some embodiments;

FIG. 8 is a cross sectional drawing of a drip irrigation arrangement, in accordance with some embodiments; and

FIG. 9A and 9B which are a perspective drawing and a section drawing respectively of a drip irrigation arrangement, in accordance with some embodiments.

DETAILED DESCRIPTION

The present disclosure, in some embodiments thereof, relates to an irrigation system and, more specifically, but not exclusively, to a drip irrigation arrangement.

Before explaining at least one embodiment of the disclosure in detail, it is to be understood that the disclosure is not necessarily limited in its application to the details of construction and the arrangement of the components and/or methods set forth in the following description and/or illustrated in the drawings and/or the Examples. The disclosure is capable of other embodiments or of being practiced or carried out in various ways.

Reference is now made to FIG. 1A, which is a cross sectional drawing of a drip irrigation arrangement 8, in accordance with some embodiments. Drip irrigation arrangement 8 is located on the inside of a tubular conduit or pipe 7. Drip irrigation arrangement 8 is attached to a pipe wall 1 of pipe 7 opposite an opening or aperture 4 in pipe wall 1. A diffusion membrane may cover most of aperture 4. Housing 2 of drip irrigation arrangement 8 forms a hollow space 3 between the base and walls 9 of housing 2. Hollow space 3 may be substantially rectangular, oblong or any other shape in the XZ plane. Housing 2 may therefore, be a cup shaped housing as shown in the XZ plane as shown. Drip irrigation arrangement 8 and/or housing 2 may be attached by being welded to pipe wall 1.

A flow of irrigation liquid 15 is shown flowing from left to right. Irrigation liquid 15 may be water or water including a nutrient. The base and walls 9 of housing 2 may be made of material that enables irrigation liquid 15 to penetrate through a base and walls 9 of housing 2. Some of irrigation liquid 15 then flows into hollow space 3 and then out of aperture 4. Some of walls 9 or the base may be a capillary medium or a porous medium. Some of walls 9 and the base may facilitate cohesive flow, osmotic flow, diffusion flow, adhesive flow, capillary flow and other molecular force. Walls 9 and the base therefore, enable irrigation liquid 15 to penetrate through the base and walls 9 of housing 2 into hollow space 3. With respect to the XZ plane, the left wall or right wall of wall 9 may be formed so that they are penetrated with a flow of irrigation liquid 15 that is perpendicular to the Y-axis. The base may be similarly configured to be penetrated with a flow of irrigation liquid 15 that is parallel to the Y-axis.

Therefore, irrigation arrangement 8 attached to a pipe wall 1 of pipe 7 opposite an opening or aperture 4 in pipe wall 1 forms an emitter or a dripper. Irrigation arrangement 8 may be attached to pipe wall 1 of pipe 7 by welding, brazing, stapling or by adhesive bonding. The dripper and other embodiments of the dripper in the descriptions that follow, also provide a reduction and regulation to a dispensation of irrigation liquid 15 in an irrigation system.

Reference is now made to FIG. IB which is a cross sectional drawing of another drip irrigation arrangement 8, in accordance with some embodiments. Drip irrigation arrangement 8 is different with respect to the irrigation arrangement 8 of FIG. 1 A. The difference in that housing 2 attached to pipe wall is a stepped cup shape to give hollow spaces 3 and 3 a. Irrigation arrangement 8 may be attached to pipe wall 1 of pipe 7 by welding, brazing, stapling or by adhesive bonding. Here with respect to hollow spaces 3 and 3 a, is an example where the inner space defined by hollow spaces 3 and 3a expands towards pipe wall 1. As with the previous figures, housing 2 of irrigation arrangement 8 is attached to a pipe wall 1 of pipe 7 opposite aperture 4 in pipe wall 1 to form a dripper. With respect to the XZ plane, an area may be defined by the length and height of hollow spaces 3 and 3 a. The area may be at least five times of the area of aperture 4 in the XZ plane. Wall 9 may have the same material property as in FIG.1A.

Reference is now made to figures FIG. 1C and ID, which show respective cross sections AA and BB of figures FIG. 1A and IB, in accordance with some embodiments. As with the previous figures, housing 2 of irrigation arrangement 8 is attached to a pipe wall 1 of pipe 7 opposite aperture 4 in pipe wall 1 to form a dripper. With respect to the YZ plane, an area may be defined by the length and height of hollows 3 and 3a. The area may be at least five times of the area of aperture 4 in the YZ plane.

In general with respect to descriptions above and below, hollows 3 and 3a with respect to the XZ plane, the length may be elongated along the X-axis. Similarly, hollows 3 and 3a with respected to the YZ plane, the width may be elongated along the Y-axis. The length and width may be the same, the length may be greater than the width or vice versa.

Reference is now made to FIG. 2A, which is a cross sectional drawing of another drip irrigation arrangement 8, in accordance with some embodiments. Drip irrigation arrangement 8 is located on the inside of a tubular conduit or pipe 7 and attached to a pipe wall 1 of pipe 7 opposite an opening or aperture 4 in pipe wall 1. Irrigation arrangement 8 may be attached to pipe wall 1 of pipe 7 by welding, brazing, stapling or by adhesive bonding. Housing 2 forms a cup shape and a membrane 11 that may be a fluid pass material for example diffusing material. A feature of walls 10 opposite each other as shown in the XZ plane.

Reference is now made to figure FIG. 2B, which shows an end view cross section CC of figure FIG. 2A, in accordance with some embodiments. Drip irrigation arrangement 8 is located on the inside of a tubular conduit or pipe 7 and attached to a pipe wall 1 of pipe 7 opposite an opening or aperture 4 in pipe wall 1. Housing 2 forms a cup shape which includes walls 10. Walls 10 are opposite each other as shown in the YZ plane. A feature of walls 10 opposite each other as shown in the YZ plane. Walls 10 for example, may be a diffusing material so that flows in pipe 7 are taken from supply of irrigation liquid 15 in pipe 7.

Reference is now made to figure FIG. 3, which is a perspective drawing of a monolithic structure 6 made by extrusion with an elongation structure material, in accordance with some embodiments. A block 5 may be cut out of monolithic structure 6 to include walls made of a capillary material. Block 5 attached to pipe wall 1 may form a hollow space between block 5 and pipe wall 1. Block 5 may be attached to pipe wall 1 by welding, brazing, stapling or by adhesive bonding. Block 5 may be included in housing 2, located on the inside of a tubular conduit or pipe 7 and attached to a pipe wall 1 of pipe 7 opposite an opening or aperture 4 in pipe wall 1. The cut and placement of block 5 in housing 2 makes the capillaries and capillary flow of the capillaries in to hollow 3 perpendicular to pipe wall 1.

In the descriptions above for various embodiments, drip irrigation arrangements 8 are located on the inside of a tubular conduit or pipe 7 and attached to a pipe wall 1 of pipe 7 opposite an opening or aperture 4 in pipe wall 1. However, drip irrigation arrangement 8 may be located and attached externally to pipe 7. A fluid inlet of drip irrigation arrangement 8 connected through aperture 4 enables the drip irrigation arrangement 8 to be located and attached internally to pipe 7 Reference is now made to figure FIG. 4, which is a cross sectional drawing of a drip irrigation arrangement 8, in accordance with some embodiments. Pipe 7 is shown with an inner wall layer 101 and an outer wall layerlOO that forms a longitudinal lumen. The longitudinal lumen is the wall of pipe 7. Flow direction of irrigation liquid 15 (shown by an arrow) through the longitudinal wall of lumen in pipe 7. Both inner wall layer 101 and outer wall layer 100 may be made of a capillary or porous medium. Both the inner wall layer 101 and the outer wall layer 100 may be made of a diffusion fabric to allow water to pass through inner wall layer 101 and the outer wall layer 100 from inside pipe 7 out of pipe 7. Reference is now made to figure FIG. 5, which is a cross sectional drawing of a drip irrigation arrangement 8, in accordance with some embodiments. Pipe 7 is shown with an inner wall layer 102 and an outer wall layer 104 that forms a longitudinal lumen. The longitudinal lumen is the wall of pipe 7. Flow direction of irrigation liquid 15 (shown by an arrow) through the longitudinal wall of lumen in pipe 7. Inner wall layer 102 and outer wall layer 104. Outer layer 104 and inner layer 102 is made of different material, for example diffusion layer, capillary layer and any other material that the water can pass through it.

Reference is now made to figure FIG. 6, which is a cross sectional drawing of a drip irrigation arrangement 8, in accordance with some embodiments. Drip irrigation arrangement 8 is shown located in a longitudinal lumen of pipe 204. The longitudinal lumen is the inner space of pipe 204 where irrigation liquid 15 (shown by an arrow) flows through the longitudinal lumen. Drip irrigation arrangement 8 includes housing 203 that is attached to wall 200 opposite an opening or outlet 201 in pipe wall 200. Housing 203 may be attached to wall 200 by stapling or welding. The base of housing 203 includes multiple inlets 211 that allows some penetration of irrigation liquid 15 into an inner space formed between the attachments of sides of housing 203 to wall 200. The inner space includes a fluid absorbing material 202 mounted in the inner space. Fluid absorbing material 202 may also be granular particles or an absorbent polymer. Multiple outlets

201 may be included in pipe wall 200 perpendicular to the inner space.

Where drip irrigation arrangement 8 is located in a longitudinal lumen and attached to inside wall 200 of pipe 204. A drip flow of some of irrigation liquid 15 out of outlet 201 is established by inlets 211 that allow some of irrigation liquid 15 to flow into fluid absorbing material 202. Consequently, the water flowing into the inner space formed between the attachments of sides of housing 203 to wall 200, causes an expansion of fluid absorbing material

202 in the inner space. The expansion may cause the water to be dripped out from outlet 201.

Also, the differential flow from fluid absorbing material 202 to the out surrounded may cause flow from fluid absorbing material 202 through opening 201 out of pipe 204. The differential flow is mostly but not only the case when pipe 204 may be located under the ground.

Reference is now made to figure FIG. 7, which is a cross sectional drawing of a drip irrigation arrangement 8, in accordance with some embodiments. Drip irrigation arrangement 8 is an example of a drawing pin shape housing 207 that is insertable through outlet 201 of pipe 204. The insertable portion of housing 207 includes an inlet 210. Inlet 210 includes a locking collar 205 with a trapezoidal cross section in the XZ plane. The shortest side of the trapezoid section is located at the distal end of inlet 210 and is substantially the same width as the diameter of inlet 210. Further up inlet 210 is the longest side of the trapezoid section which is greater than the diameter of inlet 210. The insertable portion when inserted through inlet 201 of wall 200 forms a seal between the longest side of the trapezoid section and the longitudinal section wall 200.

The external portion of housing 207 includes an inner space that includes a fluid absorbing material 202 mounted in the inner space bounded by walls of housing 207. Fluid absorbing material 202 may also be granular particles or an absorbent material. Further up at the anterior end of housing 207 is outlet 209.

In operation, some of irrigation liquid 15 goes out through inlet 210, into fluid absorbing material 202 and drips out of outlet 209.

Reference is now made to figure FIG. 8, which is a cross sectional drawing of a drip irrigation arrangement 8, in accordance with some embodiments. Pipe 212 at one end connects through wall 200 of pipe 204. Wall 200 forms a longitudinal lumen, the longitudinal lumen is the inside space of pipe 204. The other end of pipe 212 connects into an inner space of housing 207. The inner space includes a fluid absorbing material 202 mounted in the inner space. Fluid absorbing material 202 may also be granular particles or an absorbent material. On the opposite side of where pipe 212 connects into housing 207 is an outlet 209. In operation, some of irrigation liquid 15 goes out through pipe 212, and into fluid absorbing material 202 and drips out of outlet 209.

Reference is now made to figures FIG. 9A and 9B, which are a perspective drawing and a section drawing respectively of a drip irrigation arrangement 302, in accordance with some embodiments. Element 301 is shown attached inside pipe 7 to pipe wall 1. Element 301 is made from a continuous or step material and may be located on the inside or on the outside of a tubular conduit or pipe 7. Element 301 is shown attached to a pipe wall 1 of pipe 7 opposite an opening of multiple apertures 300 in pipe wall 1. Irrigation arrangement 301 may be attached to pipe wall 1 of pipe 7 by welding, brazing, stapling or by adhesive bonding. In operation, some of irrigation liquid 15 goes through each capillary or any other flow ways through element 301 and drips out of the multiple apertures 300 in pipe wall 1.

In sum, descriptions above have described drip structures which may be attached to an inside wall of a pipe, covering the hole of the pipe hole. The water flow from the inside the pipe and a flow through an element. The flow by any flow system, like for example, only capillary or diffusing flow. The drip structures enable a controlled drip of some of the irrigation liquid flowing in the pipe at various points in an irrigation system. Other features enable an insertion of a drip stricture by person to ensure that some of the irrigation liquid flowing in the pipe is dripped in the correct place. Other systems, methods, features, and advantages of the present disclosure will be or become apparent to one with skill in the art upon examination of the following drawings and detailed description. It is intended that all such additional systems, methods, features, and advantages be included within this description, be within the scope of the present disclosure, and be protected by the accompanying claims.

The descriptions of the various embodiments of the present disclosure have been presented for purposes of illustration, but are not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen to best explain the principles of the embodiments, the practical application or technical improvement over technologies found in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

As used herein the term “about” refers to ± 10 %.

The terms "comprises", "comprising", "includes", "including", “having” and their conjugates mean "including but not limited to". This term encompasses the terms "consisting of" and "consisting essentially of".

The phrase "consisting essentially of" means that the composition or method may include additional ingredients and/or steps, but only if the additional ingredients and/or steps do not materially alter the basic and novel characteristics of the claimed composition or method.

As used herein, the singular form "a", "an" and "the" include plural references unless the context clearly dictates otherwise. For example, the term "a compound" or "at least one compound" may include a plurality of compounds, including mixtures thereof.

The word “exemplary” is used herein to mean “serving as an example, instance or illustration”. Any embodiment described as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments and/or to exclude the incorporation of features from other embodiments.

The word “optionally” is used herein to mean “is provided in some embodiments and not provided in other embodiments”. Any particular embodiment of the disclosure may include a plurality of “optional” features unless such features conflict.

Throughout this application, various embodiments of this disclosure may be presented in a range format. It should be understood that the description in range format is merely for convenience and brevity and should not be construed as an inflexible limitation on the scope of the disclosure. Accordingly, the description of a range should be considered to have specifically disclosed all the possible subranges as well as individual numerical values within that range. For example, description of a range such as from 1 to 6 should be considered to have specifically disclosed subranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6 etc., as well as individual numbers within that range, for example, 1, 2, 3, 4, 5, and 6. This applies regardless of the breadth of the range.

Whenever a numerical range is indicated herein, it is meant to include any cited numeral (fractional or integral) within the indicated range. The phrases “ranging/ranges between” a first indicate number and a second indicate number and “ranging/ranges from” a first indicate number “to” a second indicate number are used herein interchangeably and are meant to include the first and second indicated numbers and all the fractional and integral numerals therebetween.

It is appreciated that certain features of the disclosure, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the disclosure, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable subcombination or as suitable in any other described embodiment of the disclosure. Certain features described in the context of various embodiments are not to be considered essential features of those embodiments, unless the embodiment is inoperative without those elements.

It is the intent of the applicant(s) that all publications, patents and patent applications referred to in this specification are to be incorporated in their entirety by reference into the specification, as if each individual publication, patent or patent application was specifically and individually noted when referenced that it is to be incorporated herein by reference. In addition, citation or identification of any reference in this application shall not be construed as an admission that such reference is available as prior art to the present invention. To the extent that section headings are used, they should not be construed as necessarily limiting. In addition, any priority document(s) of this application is/are hereby incorporated herein by reference in its/their entirety.

Claims

WHAT IS CLAIMED:

1. A drip irrigation arrangement adapted to be mounted to cover an opening of a tubular conduit, and inside the tubular conduit comprising: a housing formed around an inner space and having a fluid outlet sized and shaped to be mounted opposite to the opening; and the housing comprising at least one wall made of material that enables fluid flow therethrough from the tubular conduit into the inner space.

2. The drip irrigation arrangement of claim 1, wherein the housing is welded to the inner wall of the tubular conduit.

3. The drip irrigation arrangement of claim 1, wherein the at least one wall is made of capillary medium or porous medium.

4. The drip irrigation arrangement of claim 1 , wherein the at least one wall facilitates cohesive flow, osmotic flow, diffusion flow, adhesive flow, capillary flow and other molecular force from the tubular conduit into the inner space.

5. The drip irrigation arrangement of claim 1, wherein the at least one wall is formed with fluid structure having a flow direction which is perpendicular to a longitudinal axis of the tubular conduit.

6. The drip irrigation arrangement of claim 1, wherein the at least one wall is formed with fluid structure having a flow direction which is parallel to a longitudinal axis of the tubular conduit.

7. The drip irrigation arrangement of claim 1, wherein the drip irrigation arrangement having a diffusion membrane covering most of the fluid outlet.

8. The drip irrigation arrangement of claim 1, wherein each of the width and the length of the inner space is at least five times the area of the fluid outlet.

9. The drip irrigation arrangement of claim 1, wherein the housing is a cup shaped housing.

10. The drip irrigation arrangement of claim 1, wherein the drip irrigation arrangement is monolithically made of a capillary material.

11. The drip irrigation arrangement of claim 1, wherein the housing having opposing walls made of a capillary material and having opposing capillary flow directions.

12. The drip irrigation arrangement of claim 1, wherein the drip irrigation arrangement further comprising a block of fluid absorbing material mounted in the inner space.

13. The drip irrigation arrangement of claim 1, wherein the at least one wall is formed by cutting a block comprising a capillary material perpendicularly to a capillary flow direction of fluid channels formed in the capillary material.

14. The drip irrigation arrangement of claim 1, wherein the inner space is gradually expanding towards an inner wall of the tubular conduit.

15. The drip irrigation arrangement of claim 1, wherein a tube and dripper is formed by the housing welded to the inside of the tubular conduit.

16. A drip irrigation arrangement, comprising: a tubular conduit having along a longitudinal axis an inner wall layer and an outer wall layer forming a longitudinal lumen; wherein at least part of one of the inner wall and the outer wall is made of a capillary or porous medium and at least part of the other of the inner wall and the outer wall is made of diffusion fabric.

17. The drip irrigation arrangement of claim 16, wherein the at least part of the inner wall is made of diffusion fabric.

18. The drip irrigation arrangement of claim 16, wherein the at least part of the outer wall is made of diffusion fabric.

19. An emitter arrangement adapted to be connected and mounted to a water source, the emitter arrangement comprising: a housing formed around an inner space and having: a fluid outlet, at least one inlet; and a substrate of fluid absorbing material mounted in the inner space; wherein the at least one inlet and the fluid outlet are fluidly connected to one another by a tube to form a dripper thereby.

20. The emitter arrangement of claim 19, wherein the housing is sized and shaped to be mounted inside the tubular conduit.

21. The emitter arrangement of claim 19, wherein the substrate comprises granular particles.

22. The emitter arrangement of claim 19, wherein the emitter arrangement is stapled into an opening of a plurality of openings of a perforated irrigation conduit.

23. The emitter arrangement of claim 19, wherein a lateral length of a slot of the outlet is less than half of the tubular conduit diameter.

24. The emitter arrangement of claim 19, wherein the fluid absorbing material comprises absorbent material.

25. The emitter arrangement of claim 21, wherein the at least one inlet having a tip wider than the opening.

26. The emitter arrangement of claim 21, wherein the housing is external to the perforated irrigation conduit.

27. The emitter arrangement of claim 21, wherein the housing has a shape of a drawing pin.

28. The drip irrigation arrangement of claim 19, wherein the at least one inlet and the fluid outlet are fluidly connected to one another by a pipe to form a dripper, wherein the tube and the dripper are welded together.

29. The drip irrigation arrangement of claim 19, wherein the tube and the dripper are welded together.

30. An irrigation pipe comprising: a plurality of holes along the longitudinal length of the irrigation pipe; and a continuous or step element attached to the interior along the longitudinal length of the irrigation pipe opposite of the holes, wherein some of an irrigation liquid flowing from inner pipe passes through the continuous element and the holes to the exterior of the irrigation pipe.

31. The irrigation pipe of claim 30, wherein the continuous medium includes a capillary medium.

32. The irrigation pipe of claim 30, wherein the continuous medium includes a diffusing medium.

33. The irrigation pipe of claim 30, wherein the continuous medium includes any material or medium that the water can pass through.

34. The irrigation pipe of claim 30, wherein the continuous medium includes a rope.