CN219421824U - Low-flow self-adaptive anti-blocking micro-irrigation pipeline - Google Patents

Abstract

The utility model discloses a low-flow self-adaptive anti-blocking micro-irrigation pipeline, which comprises a pipeline body, wherein a water-absorbing foam layer is arranged below the interior of the pipeline body in a covering manner; a filter layer is also covered and arranged above the water-absorbing foam layer, and two sides of the filter layer are tightly connected with the inner wall of the pipe body; two through holes are formed in the lower wall of the pipe body at positions where water supply is needed, and a water-absorbing wire harness is correspondingly arranged; each water-absorbing wire harness passes through the corresponding two through holes, two ends of the water-absorbing wire harness are located outside the pipe body, and the middle part of the water-absorbing wire harness is fixed in the water-absorbing foam layer in the pipe body. The low-flow self-adaptive anti-blocking micro-irrigation pipeline provided by the utility model can save water resources, improve the stability and the operation convenience of a micro-irrigation system, reduce the manufacturing cost and the use cost, and better promote the growth of crops.

Description

Low-flow self-adaptive anti-blocking micro-irrigation pipeline

Technical Field

The utility model relates to the technical field of water-saving irrigation, in particular to a low-flow self-adaptive anti-blocking micro-irrigation pipeline.

Background

The micro irrigation is an irrigation method for uniformly and accurately delivering water and nutrients required by crop growth to soil near the root of the crop with small flow through a pipeline system and an irrigator arranged on a final pipeline according to the crop requirement. Compared with traditional ground irrigation and sprinkling irrigation with full-area wetting, micro irrigation wets part of soil near the root zone of crops only with a smaller flow, and is also called local irrigation technology. Drip irrigation, which is one of micro-irrigation technology, is a comparatively water-saving irrigation mode at present, but the following problems still exist in practical application:

the drip irrigation pipe and the emitter or the inlaid patch in the drip irrigation belt are constructed by adopting labyrinth injection molding, so that two key requirements of blocking prevention and water flow reduction are in contradiction, the pressure and the water flow are required to be increased for blocking prevention, but the pressure is required to be reduced for controlling the water flow, the blocking is easy to generate in use, the recovery is difficult, and the whole paving area is scrapped. In addition, the current drip irrigation system is still in an open-loop water supply control mode like spray pipes, fog irrigation and the like, the water supply quantity can be determined only according to manual or instrument judgment, and the water supply quantity can not be adaptively feedback-adjusted according to soil, climate and crop conditions.

Disclosure of Invention

In order to solve the problems in the background art, the utility model adopts the following technical scheme:

the low-flow self-adaptive anti-blocking micro-irrigation pipeline comprises a pipeline body, wherein a water-absorbing foam layer is arranged below the interior of the pipeline body in a covering manner;

a filter layer is also covered and arranged above the water-absorbing foam layer, and two sides of the filter layer are tightly connected with the inner wall of the pipe body;

two through holes are formed in the lower wall of the pipe body at positions where water supply is needed, and a water-absorbing wire harness is correspondingly arranged;

each water-absorbing wire harness passes through the corresponding two through holes, two ends of the water-absorbing wire harness are located outside the pipe body, and the middle part of the water-absorbing wire harness is fixed in the water-absorbing foam layer in the pipe body.

In some embodiments, the tube is made of PE tubing, the filter layer is made of micro-nanoporous material, and the water absorbent strands are made of hydrophilic fiber material.

In some embodiments, the cross-sectional area of the filter layer and the absorbent foam layer as a whole is 1/4-1/3 of the cross-sectional area of the interior of the tube body.

In some embodiments, the absorbent strands have a length of 10-50mm and a diameter of 2-6mm.

Compared with the prior art, the utility model has the beneficial effects that:

the low-flow self-adaptive anti-blocking micro-irrigation pipeline provided by the utility model can save water resources, improve the stability and the operation convenience of a micro-irrigation system, reduce the manufacturing cost and the use cost, and better promote the growth of crops.

Drawings

FIG. 1 is an internal schematic diagram of a low flow adaptive anti-clogging micro-irrigation pipe provided by the present utility model;

FIG. 2 is a schematic view of section A-A of FIG. 1.

Reference numerals illustrate:

1. a tube body; 2. a filter layer; 3. a water absorbing wire harness; 4. a water-absorbing foam layer.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the following further describes how the present utility model is implemented with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and 2, the utility model provides a low-flow self-adaptive anti-blocking micro-irrigation pipeline, which comprises a pipeline body 1, wherein a water-absorbing foam layer 4 is arranged below the inner part of the pipeline body 1 in a covering manner; a filter layer 2 is also covered and arranged above the water-absorbing foam layer 4, and two sides of the filter layer 2 are tightly connected with the inner wall of the pipe body 1; two through holes are formed in the lower wall of the pipe body 1 at positions where water supply is needed, and a water absorbing wire harness 3 is correspondingly arranged; each water-absorbing wire harness 3 passes through the corresponding two through holes, and both ends of the water-absorbing wire harness 3 are positioned outside the pipe body 1, and the middle part of the water-absorbing wire harness 3 is fixed in the water-absorbing foam layer 4 in the pipe body 1.

Preferably, the pipe body 1 is made of PE pipeline, the filter layer 2 is made of micro-nano pore material, and the water-absorbing wire bundle 3 is made of hydrophilic fiber material.

The working principle of the low-flow self-adaptive anti-blocking micro-irrigation pipeline provided by the utility model is as follows: when irrigation water or water fertilizer-in-one liquid medium passes through the pipe body 1 at a lower pressure (1-2 m water column), particulate matters and microorganisms are blocked outside the filter layer 2 due to the blocking effect of the micron/nano-level filter layer 2, and the micromolecular liquid medium is actively sucked under the capillary force effect of the lower water-absorbing foam layer 4, so that an aqueous layer is formed in the water-absorbing foam layer 4, water in the aqueous layer is in a controlled state, the water or liquid medium in the aqueous layer is slowly released outside the pipe body 1 through the water-absorbing wire bundle 3, and the water or liquid nutrient medium oozed out is absorbed by the soil and plant root systems of the water-absorbing wire bundle 3 through the capillary force. When the outside water is sufficient, the pressure difference between the inner capillary tube and the outer capillary tube of the tube body 1 is reduced or eliminated, the water seepage process is stopped temporarily, and the water seepage and water absorption process is restarted until the next capillary pressure difference is formed. The circulation is repeated, the self-adaptive water control effect of the pipe body 1 is achieved, the water and nutrition requirements of plants are met to the maximum extent, and water is effectively and saved.

It can be understood that, because the filter layer 2 is made of micro-nano pore materials and is integrally distributed with the water-absorbing foam layer 4 along the length direction of the pipe body 1, water in the pipe body 1 can infiltrate into the water-absorbing foam layer 4 from different positions, so that an aqueous layer is formed in the water-absorbing foam layer 4, and meanwhile, particles and microorganisms can be blocked outside the filter layer 2, so that blockage below is avoided; in addition, the inside of the pipe body 1 can be cleaned by periodically pressurizing and adding flow so as to bring out solid particles attached to the filter layer 2, so that the filter layer 2 can keep water filtering performance for a long time, and the service life is prolonged.

In addition, the low-flow self-adaptive anti-blocking micro-irrigation pipeline provided by the utility model separates the filtering and water control functions, overcomes the inherent contradiction of the traditional drip irrigation pipe or drip irrigation belt in filtering and water control, and utilizes the capillary force of the water-absorbing foam layer 4 to finish water storage and water control under the low-pressure operation condition of the pipeline, thereby reducing the manufacturing cost and the use cost of an irrigation system.

The utility model also connects the water-bearing layer in the pipe body with the external soil root system through the water-absorbing wire harness 3, and utilizes capillary pressure difference to control the water supply quantity, thereby realizing self-adaptive adjustment and overcoming the defect of forced water supply in the traditional irrigation mode. The water supply mode is more water-saving and more accords with the growth characteristics of plants. The water-absorbing wire harness 3 can be made of nylon fiber materials with good ageing resistance, tensile strength and hydrophilicity, and has long service life and good water control effect.

The pipe body 1, the filter layer 2 and the water-absorbing foam layer 4 can be produced by a coextrusion process, and the composite structure of the pipeline is realized in a three-layer coextrusion mode. In the coextrusion process, the cross-sectional area of the whole filter layer 2 and the water-absorbing foam layer 4 can occupy 1/4-1/3 of the inner cross-sectional area of the pipe body 1; the wrap angle alpha of the filter layer 2 may be 45 deg. -90 deg

Further, the length of the water absorbing wire harness 3 can be 10-50mm, the diameter d can be 2-6mm, and the length and the diameter of the water absorbing wire harness 3 can be determined by the water amount requirement in the application environment; the size of the through holes on the pipe body 1 can correspond to the diameter of the water absorption wire harness 3, and the distance a1 between two through holes penetrated by the same water absorption wire harness 3 can be 5-30mm; in addition, the distance L1 between two adjacent water absorbing strands 3 may be determined by the plant spacing of the actual required application scenario; the inner diameter D of the tube body 1 may be 20-50mm.

In conclusion, the low-flow self-adaptive anti-blocking micro-irrigation pipeline provided by the utility model can save water resources, improve the stability and the operation convenience of a micro-irrigation system, reduce the manufacturing cost and the use cost and better promote the growth of crops.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (4)

1. The low-flow self-adaptive anti-blocking micro-irrigation pipeline is characterized by comprising a pipeline body (1), wherein a water-absorbing foam layer (4) is arranged below the interior of the pipeline body (1) in a covering manner;

a filter layer (2) is also covered and arranged above the water-absorbing foam layer (4), and two sides of the filter layer (2) are tightly connected with the inner wall of the pipe body (1);

two through holes are formed in the position, where water is needed to be supplied, of the lower wall of the pipe body (1), and a water absorption wire harness (3) is correspondingly arranged;

each water-absorbing wire harness (3) passes through the corresponding two through holes, two ends of the water-absorbing wire harness (3) are located outside the pipe body (1), and the middle part of the water-absorbing wire harness (3) is fixed in the water-absorbing foam layer (4) in the pipe body (1).

2. The low-flow adaptive anti-blocking micro-irrigation pipeline according to claim 1, wherein the pipeline body (1) is made of a PE pipeline, the filter layer (2) is made of a micro-nano pore material, and the water-absorbing wire harness (3) is made of a hydrophilic fiber material.

3. The low-flow adaptive anti-clogging micro-irrigation pipe as claimed in claim 1, wherein the cross-sectional area of the filter layer (2) and the water-absorbing foam layer (4) as a whole is 1/4-1/3 of the inner cross-sectional area of the pipe body (1).

4. The low flow adaptive anti-clogging micro-irrigation pipe as claimed in claim 1, wherein the length of the water absorbing wire harness (3) is 10-50mm and the diameter is 2-6mm.