A multi-functional anti-blocking sheath for underground drip irrigation pipe

Abstract

The utility model discloses a kind of underground drip irrigation pipe outer inlay type multifunctional anti-blocking sheath, including first water seepage part and second water seepage part that are inlaid in the outer periphery of water delivery pipe and are connected by ultrasonic welding sealing.The water seepage part adopts symmetrical structure design, and all contain water inlet channel, N-shaped energy dissipation runner, shunt tank, water outlet channel and water seepage hole. Among them, energy dissipation runner is realized water flow deceleration by continuous N-shaped groove structure, and its axial two sides are provided with water inlet channel that is communicated with water inlet channel, one side water inlet channel is connected with energy dissipation runner by communicating water outlet channel and butt joint;The outlet of energy dissipation runner lower part is connected with axial shunt tank, and the both ends of shunt tank are respectively communicated with two sides water outlet channel;Sheath axial two ends are provided with water seepage hole, so that water outlet channel water flow seeps into soil.Second water seepage part structure is mirror image symmetry with first water seepage part, and energy dissipation runner is opposite in bending direction and water seepage hole position corresponds.The structure is effectively prevented from blocking by double energy dissipation shunt design, and welding connection ensures sealing, and it is suitable for underground drip irrigation system.

Description

Technical Field

[0001] This utility model relates to the field of agricultural irrigation water conveyance technology, specifically to a multi-functional anti-clogging sleeve for an externally mounted underground drip irrigation pipe. Background Technology

[0002] In agricultural irrigation, subsurface drip irrigation is a highly efficient method that delivers water directly to the vicinity of crop roots, reducing evaporation and waste. However, existing subsurface drip irrigation pipe technology has several problems. Firstly, the energy dissipation effect of subsurface drip irrigation pipes is not ideal; excessively fast water flow can lead to uneven water distribution, affecting irrigation efficiency. Secondly, the structural design of subsurface drip irrigation pipes is not optimal, the manufacturing process is complex, and the cost is high. Furthermore, the connection between the seepage components and the water delivery pipe in some subsurface drip irrigation pipes is not secure enough, easily leading to leaks and affecting the normal operation of the irrigation system. Therefore, a new subsurface drip irrigation pipe technology is needed to solve these problems. Utility Model Content

[0003] In view of the problems and shortcomings of the existing technology, this utility model provides a multi-functional anti-clogging sleeve for underground drip irrigation pipes.

[0004] The technical solution of this utility model is as follows: A multi-functional anti-clogging sleeve for underground drip irrigation pipes includes a first seepage component and a second seepage component embedded around the outer periphery of the water pipe. The first and second seepage components are welded or bonded together. Preferably, the first and second seepage components are connected by ultrasonic welding to ensure a tight seal.

[0005] The first water-permeable component includes an inlet channel, an energy-dissipating channel, a diversion channel, an outlet channel, and seepage holes. The energy-dissipating channel is located in the middle of the sheath and adopts a continuous N-shaped groove structure. The inlet channel is located on both sides of the energy-dissipating channel along its axial direction and is connected by a connecting inlet channel. One side of the inlet channel is connected to the energy-dissipating channel through a connecting outlet channel. The lower part of the side opposite to the connecting outlet channel is provided with an outlet, which is connected to a diversion channel located axially below the energy-dissipating channel. Both ends of the diversion channel are connected to the outlet channels located outside the inlet channels on both sides. Several seepage holes are provided at both ends of the sheath along its axial direction. Water in the outlet channel seeps into the ground through the seepage holes.

[0006] The second water infiltration element has the same structure as the first water infiltration element, but the energy dissipation channel bends in the opposite direction and is opposite to the position of the water hole.

[0007] According to one embodiment, a plurality of seepage holes are evenly distributed circumferentially along the end face of the first or second seepage element. Preferably, four seepage holes are evenly distributed circumferentially along the end face of the first or second seepage element. More preferably, the circumferential included angle A of the plurality of seepage holes is 45°.

[0008] Preferably, the N-shaped bend angle of the energy dissipation channel is 8° to 12°. In one specific embodiment, the N-shaped bend angle of the energy dissipation channel is 9°.

[0009] The inner diameters of the first and second seepage components are tightly fitted to the diameter of the cylindrical drip irrigation pipe embedded in the water supply pipe.

[0010] Preferably, the first and second water-permeable components are made of polyethylene or polypropylene.

[0011] The first and second water-permeable components have identical external structures, both having a smooth, semi-circular surface with tapered ends that gradually decrease in radius outwards.

[0012] The beneficial effects of this utility model are: By setting up a first and a second infiltration element, with their energy dissipation channels bending in opposite directions, the water flow velocity can be effectively reduced, the energy dissipation effect enhanced, the water distribution more uniform, and the irrigation effect improved.

[0013] The seepage components are connected by ultrasonic welding, ensuring a firm connection, preventing leaks, and guaranteeing the normal operation of the irrigation system.

[0014] The structure is reasonably designed and the manufacturing process is simple, which reduces costs.

[0015] The precise design of the seepage holes and inlet dimensions allows for better control of water flow in and out, further improving irrigation efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram illustrating the installation of the sheath on the water supply pipe, as shown in the embodiment. Figure 2 The main view after the protective suit is assembled; Figure 3 for Figure 2 The left view; Figure 4 for Figure 2 Schematic diagram of the flow channel structure of the first seepage component; Figure 5 for Figure 2 Schematic diagram of the flow channel structure of the second seepage component; The components represented by the reference numerals in the diagram are: 1. Water supply pipe; 2. First seepage component; 3. Second seepage component; 21. Water inlet channel; 22. Connecting water inlet channel; 23. Connecting water outlet channel; 24. Energy dissipation channel; 25. Diversion channel; 26. Water outlet channel; 27. Seepage hole. Detailed Implementation

[0017] The technical means adopted to achieve the intended purpose of this utility model will be further described below with reference to the accompanying drawings of the embodiments of this utility model.

[0018] Example See Figure 1 and Figure 2 In one specific embodiment, the local underground drip irrigation pipe externally inlaid multi-functional anti-clogging sleeve is composed of a first seepage component 2 and a second seepage component 3. The two are integrated into the outer periphery of the water supply pipe 1 through an externally inlaid welding process to form a drip irrigation unit with both high-efficiency energy dissipation and anti-clogging functions.

[0019] The sheath body adopts a dual-component symmetrical structure. The first seepage component 2 and the second seepage component 3 are spliced ​​together and cover the outer wall of the water supply pipe 1. Their inner diameters are interference-fitted with the outer diameter of the cylindrical drip irrigation pipe, and pre-positioning is achieved through mechanical pressing. The fixed connection interface of the two seepage components is located in the middle of the axial direction and is connected by ultrasonic welding or bonding to ensure that there is no leakage at the connection joint under working pressure. After welding, the energy dissipation channels 24 of the two seepage components are arranged in a mirror symmetrical manner with opposite bending directions, forming an energy dissipation path. The water flow at the splicing interface is connected to the outlet channel 23 to achieve continuous flow from the inlet channel 21 to the energy dissipation channel.

[0020] See Figures 3-5 The first water-permeable component 2 includes an inlet channel 21, an energy-dissipating channel 24, a diversion channel 25, an outlet channel 26, and seepage holes 27. The energy-dissipating channel 24 is located in the middle of the sheath and adopts a continuous N-shaped groove structure. The inlet channel 21 is located on both sides of the energy-dissipating channel 24 along its axial direction and is connected by a connecting inlet channel 22. One side of the inlet channel 21 is connected to the energy-dissipating channel 24 through a connecting outlet channel 23. The lower part of the side opposite to the energy-dissipating channel and the connecting outlet channel 23 is provided with an outlet, which is connected to the diversion channel 25 located axially below the energy-dissipating channel 24. The two ends of the diversion channel 25 are respectively connected to the outlet channels 26 located outside the two inlet channels 21. Several seepage holes 27 are provided at both ends of the sheath along its axial direction. Water in the outlet channel 26 seeps into the ground through the seepage holes 27.

[0021] The second water infiltration element 3 has the same structure as the first water infiltration element 2, but the energy dissipation channel bends in the opposite direction and is opposite to the position of the water hole.

[0022] The first and second water-permeable components have identical external structures, both featuring a smooth, semi-circular surface with tapered ends that gradually decrease in radius outwards. Compared to existing sheaths with protruding structures, this design reduces material waste and facilitates mechanized installation.

[0023] Specifically, the main body of the seepage component consists of an energy dissipation channel 24, an inlet channel 21, a diversion channel 25, an outlet channel 26, and seepage holes 27. The energy dissipation channel 24 is located in the axial center of the sheath and adopts a continuous N-shaped groove structure. Preferably, its bending angle is designed to be 9°±1°, determined through fluid dynamics simulation optimization, causing the water flow to undergo six directional abrupt changes within the channel. Combined with the rectangular cross-section design, this achieves over 90% kinetic energy dissipation. The inlet channels 21 are symmetrically distributed on both sides of the energy dissipation channel 24 and are connected to the energy dissipation channel 24 through multiple 1mm diameter connecting outlet channels 23, forming a pressure-stabilized water body. A downward-facing outlet is provided at the end of the energy dissipation channel 24, utilizing gravity to automatically distribute water flow from the energy dissipation zone to the diversion zone. The diversion channel 25 is connected to the outer outlet channel 26 through two guide holes, forming a dual-channel diversion structure. At the end of the water outlet channel 26, there are four circumferentially distributed circular seepage holes 27 with a diameter of 1 mm. The circumferential angle between the holes is precisely controlled at 45°, which is achieved by laser drilling technology, effectively preventing silt blockage.

[0024] Preferably, the main material of the permeable part is a blend of high-density polyethylene (HDPE) and polypropylene (PP), which is granulated by a twin-screw extruder at a temperature of 190-210°C.

[0025] After irrigation water enters the sheath through the outlet holes on the water delivery pipe 1 and drip pipe, it first forms a stable water body in the inlet channel 21, and then enters the energy dissipation channel 24 in a laminar flow state through the connecting outlet channel 23. The N-shaped channel causes periodic abrupt changes in the direction of the water flow, and together with the frictional resistance of the channel wall, the pressure energy of the water flow is converted into heat energy and dissipated by eddies. The energy-dissipated water flows through the outlet into the diversion channel 25, forming a dual-channel distribution into the outlet channels 26 at both ends, and finally achieves uniform outflow through the seepage holes 27. The 45° circumferential arrangement of the seepage holes 27 makes the outflow direction spatially divergent, expanding the wetting radius, and at the same time, the capillary effect is created by the hole size to prevent particulate matter from entering the interior of the channel.

[0026] The above description represents a preferred embodiment of the present invention. However, the present invention is not limited to the above-described embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, all variations, equivalent substitutions, and improvements made without departing from the concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-functional anti-clogging sleeve for external mounting on underground drip irrigation pipes, characterized in that, It includes a first seepage component (2) and a second seepage component (3) embedded on the outer periphery of the water pipe (1), and the first seepage component (2) and the second seepage component (3) are fixedly connected; The first water-permeable component (2) includes an inlet channel (21), an energy-dissipating channel (24), a diversion groove (25), an outlet channel (26), and a water-permeable hole (27). The energy-dissipating channel (24) is located in the middle of the sheath and adopts a continuous N-shaped groove structure. The inlet channel (21) is located on both sides of the energy-dissipating channel (24) along its axial direction and is connected by a connecting inlet channel (22). One side of the inlet channel (21) is connected to the energy-dissipating channel through a connecting outlet channel (23). The flow channel (24) is connected, and the lower part of the energy dissipation channel and the connecting water outlet channel (23) is provided with an outlet. The outlet is connected to the diversion channel (25) axially located below the energy dissipation flow channel (24). The two ends of the diversion channel (25) are connected to the water outlet channel (26) located outside the water inlet channel (21) on both sides. The axial ends of the externally mounted multi-functional anti-clogging sleeve are provided with several seepage holes (27). The water in the water outlet channel (26) seeps into the ground through the seepage holes (27). The second water infiltration element (3) has the same structure as the first water infiltration element (2), and the energy dissipation channel bends in the opposite direction and is opposite to the position of the water hole.

2. The externally mounted multifunctional anti-clogging sleeve according to claim 1, characterized in that, Multiple seepage holes (27) are evenly distributed around the end face of the first seepage element (2) or the second seepage element (3).

3. The externally mounted multifunctional anti-clogging sleeve according to claim 2, characterized in that, Four seepage holes (27) are evenly distributed around the end face of the first seepage element (2) or the second seepage element (3).

4. The externally mounted multifunctional anti-clogging sleeve according to claim 3, characterized in that, The circumferential included angle A of the seepage hole (27) is 45°.

5. The externally mounted multifunctional anti-clogging sleeve according to claim 1, characterized in that, The N-shaped bend angle of the energy dissipation channel (24) is 8°~12°.

6. The externally mounted multifunctional anti-clogging sleeve according to claim 1, characterized in that, The first water-permeable component (2) and the second water-permeable component (3) are connected by welding or bonding.

7. The externally mounted multifunctional anti-clogging sleeve according to claim 1, characterized in that, The inner diameter of the first seepage element (2) and the second seepage element (3) are tightly fitted with the diameter of the cylindrical drip irrigation pipe embedded in the water supply pipe (1).

8. The externally mounted multifunctional anti-clogging sleeve according to claim 1, characterized in that, The first water-permeable element (2) and the second water-permeable element (3) are made of polyethylene or polypropylene.

9. The externally mounted multifunctional anti-clogging sleeve according to claim 1, characterized in that, The first and second water-permeable components have identical external structures, both having a smooth, semi-circular surface and tapered ends with a radius that gradually decreases outwards.

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