Farmland water conservancy irrigation pipeline structure

Abstract

The embodiment of the utility model provides a farmland water conservancy irrigation pipeline structure which comprises a lining pipe, the lining pipe comprises spiral lines and irregularly-distributed protrusions, a certain angle is formed between the spiral lines and the water flow direction so as to guide water flow and reduce turbulent flow, and the protrusions are trapezoid or triangular protrusions and are distributed on the surface of the lining pipe; the disturbance effect is improved; the shell protection sleeve is arranged on the outer side of the lining pipe, is of a multi-layer composite structure and wraps internal components in a closed mode, and a reinforcing ring is arranged outside the shell protection sleeve so that the mechanical stability of the connecting point of the shell protection sleeve and the lining pipe can be enhanced; the connecting flanges are installed at the two ends of the lining pipe, fixedly connected with the shell protection sleeve and used for butt joint of all the sections of pipelines; the supporting ribs are arranged between the shell protection sleeve and the lining pipe in the radial direction and used for dispersing external pressure loads. According to the scheme, the water flow resistance can be reduced, and the flow speed can be increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural irrigation, in particular to a farmland water conservancy irrigation pipeline structure. BACKGROUND

[0002] The farmland water conservancy irrigation pipeline structure mainly relates to pipeline design for agricultural irrigation, aiming to improve water resource transmission efficiency through reasonable pipeline structure to meet the needs of agricultural production. However, this pipeline structure faces the problem of how to reduce water flow resistance and improve flow rate, and water flow resistance may increase the loss in the process of water resource transportation and affect the irrigation efficiency, especially in long-distance or complex terrain conditions, this problem is more prominent. SUMMARY

[0003] Therefore, the embodiments of the present disclosure provide a farmland water conservancy irrigation pipeline structure to at least partially solve the problems in the prior art.

[0004] The farmland water conservancy irrigation pipeline structure of the present application comprises:

[0005] The inner lining pipe comprises a spiral pattern and irregularly distributed protrusions, wherein the spiral pattern is at a certain angle with the water flow direction to guide the water flow and reduce turbulence, and the protrusions are trapezoidal or triangular protrusions distributed on the surface of the inner lining pipe to increase the disturbance effect.

[0006] The outer shell protective sleeve is provided outside the inner lining pipe and is a multi-layer composite structure, which forms a closed package for the internal components, and a reinforcing ring is provided outside the outer shell protective sleeve to enhance the mechanical stability of the connection point between the outer shell protective sleeve and the inner lining pipe.

[0007] The connecting flange is installed at both ends of the inner lining pipe and fixedly connected with the outer shell protective sleeve, and is used for butt joint between each section of pipeline.

[0008] The support rib is radially arranged between the outer shell protective sleeve and the inner lining pipe, and is used for dispersing external pressure load.

[0009] In one specific embodiment, the angle of the spiral pattern of the inner lining pipe ranges from 30° to 60°.

[0010] In one specific embodiment, the inner lining pipe further comprises a micron-level smooth coating provided on the inner surface of the inner lining pipe 1 to reduce the friction of water molecules on the inner surface of the inner lining pipe.

[0011] In one specific embodiment, the reinforcing ring is provided at a position close to the connection point between the outer shell protective sleeve and the inner lining pipe, and the reinforcing ring is a closed loop structure.

[0012] In one embodiment, the shell protective sleeve is provided with a plurality of buffer cavities around the support ribs for absorbing external pressure changes.

[0013] In one embodiment, the connecting flange is connected to the shell protective sleeve by an adhesive.

[0014] In one embodiment, the connecting flange is provided with a ring of elastic washers mounted on the flange joint surface for enhancing waterproofness.

[0015] In one embodiment, the support ribs are equidistantly distributed along the axis of the inner liner tube.

[0016] The disclosed embodiment provides a farmland water conservancy irrigation pipeline structure, which comprises an inner liner tube, a shell protective sleeve, a connecting flange, and support ribs. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the disclosed embodiment, the drawings needed in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some of the embodiments of the disclosed embodiment, and therefore should not be considered as a limitation on the scope, and other related drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a structural schematic diagram of the farmland water conservancy irrigation pipeline structure of the utility model;

[0019] Figure 2 is a structural schematic diagram of the farmland water conservancy irrigation pipeline structure of the utility model; Figure 1 is an enlarged view of A in the farmland water conservancy irrigation pipeline structure of the utility model;

[0020] Figure 3 is a structural schematic diagram of the farmland water conservancy irrigation pipeline structure of the utility model;

[0021] Figure 4The utility model discloses a farmland water conservancy irrigation pipeline structure Figure 3 The enlarged view of the middle B.

[0022] In the drawing: 1, inner lining pipe; 11, spiral pattern; 12, micron smooth coating; 13, protrusion; 2, shell protective sleeve; 3, connecting flange; 4, support rib; 5, reinforcing ring; 6, buffer cavity; 7, elastic washer DETAILED DESCRIPTION

[0023] Hereinafter, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0024] As Figure 1 The utility model discloses a farmland water conservancy irrigation pipeline structure includes inner lining pipe 1, shell protective sleeve 2, connecting flange 3 and support rib 4. These parts are fully considered in design the demand of water flow resistance reduction and flow rate promotion, through reasonable material selection and structure optimization, formed with high performance and good applicability irrigation pipeline.

[0025] The inner lining pipe 1 as the core component of water flow passage is located in the innermost layer of the whole pipeline structure. It has multiple special structure designs: its surface contains spiral pattern 11, these patterns are arranged along a certain angle, aiming at guiding the water flow direction, while reducing the turbulence phenomenon caused by water flow collision; the inner lining pipe 1 is covered with micron smooth coating 12 inside, the coating is modified by high molecular polymer or nano particle composite, can effectively reduce the friction between water molecules and between water molecules and pipeline surface; in addition, the outer wall of the inner lining pipe 1 is distributed with several irregular small protrusions 13, these protrusions 13 can interfere with the stationary water flow layer in the near wall area, promote the kinetic energy of fluid to be more evenly distributed in the cross section, further improve the water flow efficiency.

[0026] The shell protective sleeve 2 is arranged outside the inner lining pipe 1, adopts multilayer composite material to build, to realize good mechanical strength and corrosion resistance. Specifically, this shell can be composed of two layers of materials with different properties, for example, the inner layer uses corrosion-resistant plastic (such as polyethylene), and the outer layer uses high-strength metal material (such as stainless steel) or fiber reinforced composite material. This layered structure not only guarantees the long service life of the pipeline, but also provides all-round closed wrapping for the inner lining pipe 1, isolates the influence of the external environment.

[0027] Connecting flanges 3 are installed at both ends of the inner liner pipe 1, forming a modular connection that facilitates assembly and disassembly. The flanges themselves are fixed to the outer protective sleeve 2 with fasteners, and a sealing ring ensures good waterproofing at the joint. This technical approach, through a standardized design, not only ensures stable connections between pipe sections but also significantly reduces the risk of leakage caused by improper assembly.

[0028] Support ribs 4 are distributed between the inner liner tube 1 and the outer protective sleeve 2, reinforcing the bond between them in a radial arrangement. Each support rib 4 is typically made of a high-rigidity material to ensure that the pressure acting on the outer protective sleeve 2 is evenly transmitted throughout the entire structure, preventing excessive local stress that could cause deformation or even damage. Technically, these support ribs 4 can be prefabricated as independent components and embedded in the gap between the inner liner tube 1 and the outer sleeve, or they can be directly formed during the outer sleeve manufacturing process through molding, thereby simplifying the production process and reducing the difficulty of manufacturing.

[0029] To address the issues of high flow resistance and low flow velocity, this invention incorporates innovative design elements in the following aspects. Firstly, the spiral pattern 11 on the inner liner 1 optimizes the dynamic characteristics of the water flow, reducing unnecessary energy loss by rationally guiding the water flow's turning tendency. Secondly, the application of a micron-level smooth coating 12 significantly reduces the interfacial viscosity between the water and the inner liner 1, increasing the flow velocity limit. Finally, irregular small protrusions 13 disrupt the original near-wall stagnant flow state, allowing kinetic energy to be redistributed over a wider area, thereby achieving more efficient and uniform water transport. In summary, this farmland irrigation pipeline structure, through the aforementioned comprehensive improvements, demonstrates significant advantages in reducing flow resistance and increasing water flow, meeting the demand for efficient and water-saving water in actual agricultural production.

[0030] like Figure 4 As shown, in one embodiment, the inner liner 1 of the farmland irrigation pipeline structure of this application effectively guides the direction of water flow by designing spiral patterns 11 on its surface. Specifically, the spiral patterns 11 inside the inner liner 1 are arranged at a certain angle, and the angle is limited to a range of 30° to 60° to ensure stable water flow guidance and significantly reduce the impact of turbulence. This design not only optimizes the path of water flow conduction but also effectively improves the overall efficiency of water flow conduction within the pipeline.

[0031] Specifically, the interaction of such spiral pattern 11 with water flow needs to achieve the best effect under certain installation position. The spiral pattern 11 covers the inner wall of the inner liner tube 1 and forms a composite layer with the outer shell protective sleeve 2, which makes the pattern angle consistent all the time, even in the case of long-term operation or external load. The connecting flange 3 plays a role in positioning the two ends of the inner liner tube 1, while fixing the outer shell protective sleeve 2, thereby ensuring the structural integrity of the entire pipeline is not damaged.

[0032] For example, to achieve the above-mentioned angle range control of the spiral pattern 11, the mold parameters can be adjusted during the precise machining of the inner liner tube 1. The desired spiral angle is formed by using an automatic numerical control machine according to the set process parameters, and combined with the later quality detection step to verify whether each finished product meets the angle requirement of 30° to 60°, so as to reliably guarantee the technical features.

[0033] As shown in Figure 2 and Figure 4 In one embodiment, the micron-scale smooth coating 12 of the farmland water conservancy pipeline structure of the present application uses a ceramic material with a nano-scale particle distribution. The coating is uniformly coated on the inner surface of the inner liner tube 1, and its special material structure significantly reduces the friction between water molecules and improves the water flow speed. Specifically, such ceramic material is applied to the inner liner tube 1 through chemical or physical vapor deposition technology, which guarantees the high uniformity and micro-flatness of the coating, thereby optimizing the internal flow environment.

[0034] The above-mentioned coating is located on the inner wall of the inner liner tube 1 and closely adheres to the spiral pattern 11, both of which further reduce turbulence and guide the smooth flow of water through the pipeline. The synergistic effect between the micron-scale smooth coating 12 and the spiral pattern 11 ensures that the energy loss during water flow is minimized. In addition, the coating also has excellent durability and chemical stability, effectively resisting the influence of minerals and pollutants in water, maintaining long-term stable water flow flux and quality.

[0035] For example, first, a ceramic precursor solution with specific chemical components is selected, and a nano-scale particle powder containing uniformly dispersed nano-scale particles is prepared by spray drying, and then a continuous and stable coating is formed by high-temperature sintering treatment. During the coating process, the ceramic particles are accurately deposited on the inner wall of the pre-treated inner liner tube 1 by using a precision spraying device, and then a strictly controlled heat treatment process is carried out to fix the coating, so as to ensure that the ideal micro-morphology and flatness are finally obtained. This process not only meets the technical requirements of the coating, but also guarantees the consistency and reliability of the production process.

[0036] As shown in Figure 3 and Figure 4As shown, in one embodiment, the inner liner 1 of the farmland water conservancy irrigation pipeline structure of the present application has small protrusions 13 distributed on its surface, which can be designed as trapezoidal or triangular shapes, and the irregular arrangement thereof generates disturbance to the flow near the wall surface. The special shape of the protrusions 13 and the position setting thereof effectively change the laminar flow state of the fluid in the near-wall region, so that the water molecule movement is more close to uniformity, thereby reducing the kinetic energy loss due to boundary effect and improving the overall water flow transmission efficiency. Specifically, the small protrusions 13 are distributed on the inner surface of the inner liner 1, which directly contacts the water flow and can adjust the water molecule distribution in the flow passage.

[0037] For example, the trapezoidal or triangular small protrusions 13 are fixedly embedded on the surface of the inner liner 1 at specific positions, and the distribution density and size range thereof are controlled according to actual needs. In this way, the inner liner 1 surface with this feature can be constructed by mold injection or mechanical milling, etc. in terms of technical implementation, while ensuring that the assembly relationship with the outer shell protective sleeve 2 and the support rib 4 and other components is consistent and coordinated, maintaining the integration function and performance stability of the entire structure.

[0038] As shown in the drawings, Figure 1 As shown, in one embodiment, the outer shell protective sleeve 2 of the farmland water conservancy irrigation pipeline structure of the present application is additionally provided with a reinforcing ring 5, which is specifically arranged at the connection point position close to the outer shell protective sleeve 2 and the inner liner 1. The reinforcing ring 5 is designed as a closed ring, and the purpose is to provide uniform force distribution around the entire pipeline periphery to enhance the mechanical performance. At the same time, the reinforcing ring 5 adopts a material with high strength characteristics, such as an alloy or a composite fiber material, and is tightly combined with the outer shell protective sleeve 2 through a special manufacturing process.

[0039] The reinforcing ring 5 is installed outside the outer shell protective sleeve 2 and forms an additional support effect in the connection point area. Specifically, the reinforcing ring 5 and the outer shell protective sleeve 2 can be fixed by mechanical means, such as threaded connections, buckle structures or other fastening components, to achieve firm assembly. In addition, adhesion or other chemical bonding methods can also be selected to assist in fixation, so as to ensure that there is no loosening or deformation under high-pressure water flow environment. For example, in the actual technical implementation process, the reinforcing ring 5 can be pre-wrapped around the outer surface of the outer shell protective sleeve 2, and then adjusted by using a positioning mold and filled with special adhesive to further strengthen the bonding surface.

[0040] As shown in the drawings, Figure 4As shown, in one embodiment, the outer shell protective sleeve 2 of the farmland water conservancy irrigation pipeline structure of the present application is designed with a multi-layer polymer fiber woven layer composite material. The outer shell protective sleeve 2 is located outside the inner liner pipe 1, wraps around the entire inner liner pipe 1, and forms a closed protective structure. This multi-layer polymer fiber woven layer is composed of multiple functional layers, and each layer is combined by a specific chemical or physical process. For example, one layer can be a coating with high molecular corrosion resistance, and another layer is a high-strength fiber fabric for improving the overall mechanical properties. Such a multi-layer design ensures that the outer shell protective sleeve 2 has excellent corrosion resistance and impact resistance.

[0041] In addition, the outer shell protective sleeve 2 is fixedly connected to the two ends of the inner liner pipe 1 through the connecting flanges 3, ensuring the firmness of the installation and the integrity of the overall structure. At the same time, the support ribs 4 are arranged radially between the outer shell protective sleeve 2 and the inner liner pipe 1, further enhancing the fit of the two, and also reinforcing the protective sleeve.

[0042] Specifically, different types of polymer fibers can be selected and combined with hot pressing and other processing methods to complete the design and manufacture of the outer shell protective sleeve 2.

[0043] As shown in Figure 3 and Figure 4 In one embodiment, the outer shell protective sleeve 2 of the farmland water conservancy irrigation pipeline structure of the present application is internally provided with a plurality of buffer cavities 6 arranged around the support ribs 4. These buffer cavities 6 can quickly absorb and disperse pressure changes when the outer shell protective sleeve 2 is under pressure, ensuring the stable operation of the internal components. The outer shell protective sleeve 2 itself is constructed of a multi-layer composite material, has excellent mechanical strength and corrosion resistance, and the buffer cavities 6 further improve its buffering effect on external impact forces. At the same time, these buffer cavities 6 are carefully designed in terms of spatial position and volume size, closely surrounding the radially arranged support ribs 4, providing additional protection without affecting the normal load-bearing capacity of the support ribs 4.

[0044] For example, the buffer cavities 6 are formed by hollow areas pre-set in the multi-layer composite material and accurately correspond to the positions of the support ribs 4 during assembly, forming a surrounding layout. The interface between the support ribs 4 and the outer shell protective sleeve 2 is optimized by a special process, so that they can be firmly connected without damaging the functional structure of the buffer cavities 6. This component mounting form realizes efficient external force conduction and shock absorption effect by reasonably planning the spatial relationship between the buffer cavities 6 and the support ribs 4. At the same time, all components still maintain good cooperation with the inner liner pipe 1, together forming a stable overall pipeline structure.

[0045] As shown in Figure 2As shown, in one embodiment, the connecting flange 3 of a farmland irrigation pipeline structure of this application is connected to the outer protective sleeve 2 by a high-strength adhesive. This design uses a high-strength adhesive as the main bonding material between the two, which not only strengthens the fixation between components but also further improves the sealing and seismic resistance of the overall structure. Specifically, in this structure, the connecting flange 3 is installed at both ends of the inner liner pipe 1 and extends to the area of ​​the outer protective sleeve 2. At this location, a high-strength adhesive is used to bond the connecting flange 3 and the outer protective sleeve 2. The resulting sealed surface effectively prevents moisture from penetrating between the two components, thereby avoiding water waste caused by leakage. Furthermore, this bonding method can absorb energy from external vibrations, reducing stress concentration problems in the pipeline system under working conditions.

[0046] For example, epoxy resin or similar adhesives can be selected and applied between the outer surface of the connecting flange 3 and the corresponding parts of the outer casing 2. Before bonding, the contact surfaces need to be cleaned and appropriately roughened to ensure that the high-strength adhesive fully adheres and fills the fine pores, forming a uniform and firm connection interface. This process also requires a specific pressing technique to ensure that the adhesive layer reaches the preset thickness range, ensuring that the final sealing performance and structural strength meet the expected requirements.

[0047] like Figure 1 and Figure 3 As shown, in one embodiment, the connecting flange 3 of a farmland irrigation pipeline structure of this application is equipped with an elastic gasket 7, which is installed on the flange mating surface. The elastic gasket 7 is located on the mating surface between the flanges of the two pipeline sections to be connected, ensuring a tight fit between them. By embedding the elastic gasket 7 into a pre-set groove on the flange surface, the waterproof performance and sealing performance of the joint can be enhanced, thereby ensuring that the pipeline connection section has high reliability and durability. In addition, the elastic gasket 7 deforms during the flange tightening process, filling the micro-gaps on the flange surface with different shapes or minimal differences in irregularity, preventing water seepage, and also has good adaptability to loosening caused by long-term external factors (such as vibration, soil pressure changes).

[0048] Specifically, during pipe installation, a matching elastic washer 7 is first pre-placed on the flange mating surface. Then, the two flanges 3 to be connected are aligned and secured with appropriate torque by tightening the bolts. During this process, the elastic washer 7 undergoes compression, generating the necessary elastic deformation to ensure continuous and stable sealing pressure throughout the entire working cycle, preventing moisture leakage and effectively extending the service life of the connection.

[0049] like Figure 4As shown, in one embodiment, the support ribs 4 of the irrigation pipe structure of the present application are distributed at equal intervals along the axis of the inner liner pipe 1. This design can adapt to the situation of pressure changes when water flows, making the interaction force between water flow and the inside of the pipe more balanced. Specifically, because water pressure usually acts on the inner surface in a non-uniform manner in the pipe, this arrangement of support ribs 4 helps to optimize the stress condition and at the same time enhances the stability during the operation of water flow. Through reasonable distribution design, each part of the support ribs 4 can effectively participate in the strengthening of the overall pressure-bearing capacity of the pipe, and further promote the optimization of water flow velocity.

[0050] For example, the typical pressure distribution area and peak pressure range generated by the water flow can be calculated first, and then the specific arrangement interval of the support ribs 4 can be determined based on these results. On this basis, ensure that each support rib 4 is arranged at the same distance and firmly connected between the outside of the inner liner pipe 1 and the inside of the outer shell protective sleeve 2, and the three are tightly combined by mechanical fixation or composite material cementation. In this way, the mechanical properties and functionality of the entire pipe system are effectively guaranteed.

[0051] In actual operation, when the device is in use, water flows into the inner liner pipe 1 from one end of the pipe, and the helical pattern 11 on the inner liner pipe 1 guides the water flow at a certain angle and reduces the turbulence phenomenon. Subsequently, the micron-level smooth coating 12 reduces the friction between water molecules to speed up the water flow, while the irregularly distributed small protrusions 13 disrupt the near-wall stationary layer to promote the uniform distribution of fluid kinetic energy throughout the cross section. Under the wrapping of the outer shell protective sleeve 2, the entire structure has sufficient mechanical strength and corrosion resistance, effectively preventing damage to internal parts by the external environment, and providing a good sealed environment for the entire pipe. The connecting flange 3 firmly connects the pipe sections and ensures that there is no water leakage at the joint. In addition, the support ribs 4 located between the outer shell protective sleeve 2 and the inner liner pipe 1 can enhance the bonding force between the two and evenly disperse the pressure from the outside, ensuring that the pipe can still maintain its shape and straightness under external force. Finally, under the action of a series of design elements, the water flow is smoothly transported along the irrigation pipe to the designated locations in the farmland, achieving the purpose of efficient irrigation.

[0052] The above describes the preferred embodiments of the present application. It should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An agricultural water conservancy irrigation pipeline structure, characterized by, The application relates to a kind of inner lining pipe (1), which comprises spiral pattern (11) and irregular distribution of convex (13), wherein the spiral pattern (11) is at a certain angle with the direction of water flow to guide water flow and reduce turbulence, the convex (13) is trapezoidal or triangular convex, distributed on the surface of the inner lining pipe (1), for increasing disturbance effect. The outer shell protective sleeve (2) is provided outside the inner lining pipe (1) and is a multi-layer composite structure, which forms a closed package for the internal components, and a reinforcing ring (5) is provided outside the outer shell protective sleeve (2) to enhance the mechanical stability of the connection point between the outer shell protective sleeve (2) and the inner lining pipe (1). A connecting flange (3) is installed at both ends of the inner lining pipe (1) and is fixedly connected with the outer shell protective sleeve (2), which is used for butt joint between pipes. Support ribs (4) are arranged radially between the outer shell protective sleeve (2) and the inner lining pipe (1) to disperse external pressure load. The angle of the spiral pattern (11) of the inner lining pipe (1) ranges from 30 to 60 degrees.

2. The farmland water conservancy irrigation pipeline structure according to claim 1, characterized in that: The inner lining pipe further comprises a micron-level smooth coating (12) provided on the inner surface of the inner lining pipe (1) to reduce the friction of water molecules on the inner surface of the inner lining pipe (1).

3. The farmland water conservancy irrigation pipeline structure according to claim 1, characterized in that: The reinforcing ring (5) is arranged near the connection point between the outer shell protective sleeve (2) and the inner lining pipe (1), and the reinforcing ring (5) is a closed loop structure.

4. The farmland water conservancy irrigation pipeline structure according to claim 1, characterized in that: A plurality of buffer cavities (6) are provided inside the outer shell protective sleeve (2) and are located around the support ribs (4) to absorb external pressure changes.

5. The farmland water conservancy irrigation pipeline structure according to claim 1, characterized in that: The connecting flange (3) is connected with the outer shell protective sleeve (2) by adhesive.

6. The farmland water conservancy irrigation pipeline structure according to claim 1, characterized in that: The connecting flange (3) is provided with a ring of elastic gasket (7) installed on the flange joint surface to enhance waterproofness.

7. The farmland water conservancy irrigation pipeline structure according to claim 1, characterized in that: The support ribs (4) are equally spaced along the axis direction of the inner lining pipe (1).

8. The farmland water conservancy irrigation pipeline structure according to claim 1, characterized in that: ​

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