A water conservancy pipeline for water conservancy projects

By installing multiple layers of anti-corrosion coatings and integrally molded connection ends on water conservancy pipelines, combined with high-strength composite materials and ceramic coatings, the problems of corrosion and weak connections in water conservancy pipelines have been solved. This has enabled the pipelines to achieve corrosion prevention, sealing, and sensing monitoring, thereby improving the stability and economy of water conservancy projects.

CN224433666UActive Publication Date: 2026-06-30SHANDONG XUTIAN CONSTR ENG GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG XUTIAN CONSTR ENG GRP CO LTD
Filing Date
2025-04-15
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing water pipelines are prone to corrosion and have weak connections, leading to leaks, increased engineering costs, and affecting project safety and normal operation.

Method used

It adopts a multi-layer anti-corrosion structure, including a primer layer, an intermediate paint layer and a topcoat layer, combined with an integrally molded connection end and an inner sealing gasket, using high-strength composite materials and ceramic coatings, and equipped with pressure and flow sensors.

Benefits of technology

It effectively prevents corrosion, improves connection strength and sealing, reduces leakage, extends service life, reduces maintenance costs, and ensures the stable operation of water conservancy projects.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a water conservancy pipeline for water conservancy projects, relating to the field of water conservancy engineering technology. It includes a pipeline body, a front connecting end, and a rear connecting end. The outer surface of the pipeline body is provided with an anti-corrosion layer. The anti-corrosion layer includes a primer layer, an intermediate paint layer, and a topcoat layer. The primer layer is located on the outermost side of the pipeline body, the intermediate paint layer is located outside the primer layer, and the topcoat layer is located outside the intermediate paint layer. The anti-corrosion layer on the outer surface of the pipeline body consists of a primer layer, an intermediate paint layer, and a topcoat layer. The primer layer adheres directly to the outermost side of the pipeline body, enhancing adhesion to the pipeline surface and preventing direct corrosion from external substances. The intermediate paint layer increases the thickness and wear resistance of the anti-corrosion layer, further blocking the penetration of corrosive media. The topcoat layer has good weather resistance and UV resistance, protecting the entire anti-corrosion layer from damage by the external environment.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a water conservancy pipeline used in water conservancy projects. Background Technology

[0002] Water conservancy projects are engineering projects constructed to control and regulate surface water and groundwater in nature to achieve the purpose of eliminating harm and promoting benefits. They are also called water engineering. Water is an essential and precious resource for human production and life, but its natural state does not fully meet human needs. Only by constructing water conservancy projects can we control water flow, prevent floods, and regulate and distribute water to meet the needs of people's lives and production for water resources. Water conservancy projects require the construction of different types of hydraulic structures such as dams, dikes, spillways, sluice gates, intakes, canals, ferries, rafts, and fishways to achieve their goals.

[0003] In the field of water conservancy engineering, the performance and quality of water pipelines play a crucial role in the normal operation and service life of the entire project.

[0004] However, existing water pipelines have many problems that urgently need to be solved:

[0005] Corrosion issues: Water pipelines are typically exposed to humid water environments for extended periods, making them susceptible to corrosion. Once corroded, pipelines not only lose strength and increase the risk of leaks, but they can also contaminate the water they transport, shorten their lifespan, and require frequent replacements, significantly increasing project costs.

[0006] Connection issues: Traditional pipe connection methods may suffer from problems such as inadequate sealing and loose connections. Under long-term water flow impact and pressure changes, the connections are prone to loosening and leakage, affecting the normal operation of water conservancy projects and potentially even causing safety accidents. Utility Model Content

[0007] To achieve the above objectives, this utility model provides the following technical solution: a water conservancy pipeline for water conservancy projects, comprising a pipeline body, a front connecting end and a rear connecting end, wherein the outer surface of the pipeline body is provided with an anti-corrosion layer;

[0008] The anti-corrosion layer includes a primer layer, an intermediate paint layer, and a topcoat layer. The primer layer is located on the outermost side of the pipe body, the intermediate paint layer is located on the outside of the primer layer, and the topcoat layer is located on the outside of the intermediate paint layer.

[0009] The front connecting end includes a front connecting end and an external thread end, and the front connecting end and the external thread end are integrally formed.

[0010] The rear connection end includes a rear connection end and an internal thread end, and the rear connection end and the internal thread end are integrally formed.

[0011] The front connecting end and the rear connecting end are connected by an external thread end and an internal thread end, and a sealing gasket is provided on the inner side of both the front connecting end and the rear connecting end.

[0012] The pipe body has a pressure sensor mounting hole inside, and a piezoresistive pressure sensor is installed inside the pressure sensor mounting hole. The pipe body has a wire hole, through which the wire of the piezoresistive pressure sensor is led out, and a sealing joint is provided at the position of the wire hole.

[0013] Preferably, a flow sensor is provided on the outer surface of the pipe body, and the flow sensor is in close contact with the pipe body.

[0014] Preferably, the pipe body is a composite material, and the composite material is composed of a high-strength fiber-reinforced material and a high-performance resin matrix; the high-strength fiber-reinforced material is one of glass fiber, carbon fiber or aramid fiber; the high-performance resin matrix is ​​one of epoxy resin and unsaturated polyester resin.

[0015] Preferably, the inner wall of the pipe body is provided with a ceramic coating.

[0016] Preferably, the pipe body has an internal thread at one end, a filter element is provided at one end inside the pipe body, the filter element has an external thread, and the filter element is connected to the pipe body through the internal and external threads.

[0017] Preferably, the end of the pipe body is provided with a fixing component, which includes a U-shaped seat, two fixing plates and an adjusting bolt. The two fixing plates are symmetrically arranged inside the U-shaped seat, and the adjusting bolt is provided on both sides of the U-shaped seat. The U-shaped seat has an internal threaded hole, and the adjusting bolt is connected to the U-shaped seat through the internal thread. The adjusting bolt inside the U-shaped seat is movably connected to the fixing plate.

[0018] Preferably, a rubber pad is provided at the bottom of the inside of the U-shaped seat.

[0019] Beneficial Effects: Compared with existing technologies, this utility model features an anti-corrosion layer on the outer surface of the pipe body, composed of a primer layer, an intermediate paint layer, and a topcoat layer. The primer layer adheres directly to the outermost side of the pipe body, enhancing adhesion to the pipe surface and preventing direct corrosion from external substances. The intermediate paint layer increases the thickness and wear resistance of the anti-corrosion layer, further blocking the penetration of corrosive media. The topcoat layer has excellent weather resistance and UV resistance, protecting the entire anti-corrosion layer from environmental damage. This multi-layered anti-corrosion structure effectively extends the service life of the pipe and reduces maintenance and replacement costs caused by corrosion. The front and rear connection ends are connected by external and internal threaded ends, and the integrally formed structure ensures the strength of the connection. Simultaneously, sealing gaskets are provided on the inner sides of both the front and rear connection ends, effectively preventing liquid leakage, ensuring the sealing and stability of the pipe connection, and reducing water waste and engineering failures caused by leakage at the connection point. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the structure of this utility model.

[0021] Figure 2 This is an enlarged view of section A of this utility model.

[0022] Figure 3 This is an enlarged view of section B of this utility model.

[0023] Figure 4 This is a diagram showing the installation structure of this utility model.

[0024] In the attached diagram: 1-pipe body, 2-front connection end, 201-front connection end, 202-external thread end, 3-rear connection end, 301-rear connection end, 302-internal thread end, 4-primer layer, 5-intermediate paint layer, 6-topcoat layer, 7-sealing gasket, 8-piezoresistive pressure sensor, 9-flow sensor, 10-ceramic coating, 11-filter element, 12-U-shaped seat, 13-fixing plate, 14-adjusting bolt, 15-rubber pad. Detailed Implementation

[0025] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0026] Example

[0027] Please refer to the accompanying drawings in the specification. In this embodiment of the utility model, a water conservancy pipeline for water conservancy projects includes a pipeline body 1, a front connecting end 2, and a rear connecting end 3. The outer surface of the pipeline body 1 is provided with an anti-corrosion layer.

[0028] The anti-corrosion layer includes a primer layer 4, an intermediate paint layer 5, and a topcoat layer 6. The primer layer 4 is located on the outermost side of the pipe body 1 and is made of epoxy zinc-rich primer, which can effectively prevent the metal from contacting air and moisture, thus playing a role in rust prevention. The intermediate paint layer 5 is located on the outer side of the primer layer 4 and is made of epoxy micaceous iron oxide intermediate paint, which increases the thickness and wear resistance of the anti-corrosion layer and further improves the anti-corrosion performance. The topcoat layer 6 is located on the outer side of the intermediate paint layer 5 and is made of acrylic polyurethane topcoat, which can protect the anti-corrosion layer from external environmental erosion and extend the service life of the anti-corrosion layer.

[0029] The front connecting end 2 includes a front connecting end 201 and an external thread end 202, and the front connecting end 201 and the external thread end 202 are integrally formed.

[0030] The rear connecting end 3 includes a rear connecting end 301 and an internal thread end 302, and the rear connecting end 301 and the internal thread end 302 are integrally formed.

[0031] The front connecting end 2 and the rear connecting end 3 are connected by an external thread end 202 and an internal thread end 302, and a sealing gasket 7 is provided on the inner side of both the front connecting end 2 and the rear connecting end 3.

[0032] The pipe body 1 has an internal pressure sensor mounting hole, inside which a piezoresistive pressure sensor 8 is installed. A wire through-hole is provided on the pipe body 1, through which the wire of the piezoresistive pressure sensor 8 is led out, and a sealing joint is provided at the location of the wire through-hole. The piezoresistive pressure sensor 8 is installed inside the pipe body to monitor pressure changes in the pipe in real time. The pressure sensor is a high-precision piezoresistive sensor, capable of accurately measuring the pressure value inside the pipe and converting the pressure signal into an electrical signal for transmission to the data processing unit. A flow sensor 9 is installed on the outer surface of the pipe body 1, tightly fitted to the pipe body 1. The flow sensor is an ultrasonic flow sensor, installed on the outer wall of the pipe body, measuring the flow rate inside the pipe by emitting and receiving ultrasonic signals. The ultrasonic flow sensor has advantages such as high measurement accuracy, no pressure loss, and convenient installation, and can accurately measure the flow rate inside the pipe in real time and transmit the flow signal to the data processing unit.

[0033] The pipe body 1 is a composite material, which is composed of a high-strength fiber-reinforced material and a high-performance resin matrix. The high-strength fiber-reinforced material is one of glass fiber, carbon fiber, or aramid fiber. The high-performance resin matrix is ​​one of epoxy resin or unsaturated polyester resin. The pipe body is a composite material composed of a high-strength fiber-reinforced material (such as glass fiber, carbon fiber, or aramid fiber) and a high-performance resin matrix (such as epoxy resin or unsaturated polyester resin), which has high strength and good toughness.

[0034] The inner wall of the pipe body 1 is provided with a ceramic coating 10. The ceramic coating on the inner wall of the pipe has extremely low roughness, which can significantly reduce water flow resistance, improve water conveyance efficiency, and reduce energy consumption. At the same time, the ceramic coating also has good wear resistance, which can reduce the wear of impurities in the water flow on the inner wall of the pipe and extend the service life of the pipe.

[0035] The pipe body 1 has an internal thread at its inner end, and a filter element 11 is provided at its inner end. The filter element 11 has an external thread, and the filter element 11 is connected to the pipe body 1 by the internal and external threads.

[0036] The end of the pipe body 1 is provided with a fixing component, which includes a U-shaped seat 12, two fixing plates 13 and adjusting bolts 14. The two fixing plates 13 are symmetrically arranged inside the U-shaped seat 12. The adjusting bolts 14 are respectively provided on both sides of the U-shaped seat 12. The U-shaped seat 12 has an internal threaded hole, and the adjusting bolts 14 are connected to the U-shaped seat 12 through the internal thread. The adjusting bolts 14 inside the U-shaped seat 12 are movably connected to the fixing plates 13.

[0037] A rubber pad 15 is provided at the bottom of the interior of the spiral seat 12.

[0038] Working Principle: The primer layer reacts chemically with the pipe body surface to form a protective film, isolating corrosive media; the intermediate paint layer fills the pores of the primer, increasing density and preventing media penetration; the topcoat layer resists external environmental erosion, protecting the primer and intermediate paint layers, achieving long-term corrosion protection. The external threaded end of the front connection and the internal threaded end of the rear connection screw together, and the thread engagement provides connection strength and stability. The inner sealing gasket deforms under connection pressure, filling gaps and preventing liquid leakage. The piezoresistive pressure sensor is based on the piezoresistive effect; changes in pressure inside the pipe cause changes in the sensor's resistance value, which is converted into an electrical signal for transmission, enabling real-time pressure monitoring. The flow sensor uses principles such as ultrasound to measure flow rate and converts it into an electrical signal for dispatching and management. Water enters the pipe under pressure; the smooth ceramic coating on the inner wall reduces water flow resistance. The filter intercepts impurities in the water, ensuring clean water flow and maintaining the normal operation of the pipeline system. The pipe is placed in the U-shaped seat; rotating the adjusting bolt moves it through the threaded hole, pushing the fixing plate to clamp the pipe. The rubber pad at the bottom of the U-shaped seat increases friction, stabilizing the pipe and preventing displacement due to external forces.

[0039] In summary, the anti-corrosion layer on the outer surface of the pipe body in this invention consists of a primer layer, an intermediate paint layer, and a topcoat layer. The primer layer adheres directly to the outermost side of the pipe body, enhancing adhesion to the pipe surface and preventing direct corrosion from external substances. The intermediate paint layer increases the thickness and wear resistance of the anti-corrosion layer, further blocking the penetration of corrosive media. The topcoat layer has excellent weather resistance and UV resistance, protecting the entire anti-corrosion layer from environmental damage. This multi-layer anti-corrosion structure effectively extends the service life of the pipe and reduces maintenance and replacement costs due to corrosion. The front and rear connection ends are connected by external and internal threaded ends, and the integrally formed structure ensures the strength of the connection. Simultaneously, sealing gaskets are provided on the inner sides of both the front and rear connection ends, effectively preventing liquid leakage, ensuring the sealing and stability of the pipe connection, and reducing water waste and engineering failures caused by leakage at the connection point.

[0040] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

[0041] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A water conservancy pipeline for water conservancy projects, characterized in that: It includes a pipe body (1), a front connecting end (2) and a rear connecting end (3), and the outer surface of the pipe body (1) is provided with an anti-corrosion layer; The anti-corrosion layer includes a primer layer (4), an intermediate paint layer (5) and a topcoat layer (6). The primer layer (4) is located on the outermost side of the pipe body (1), the intermediate paint layer (5) is located on the outside of the primer layer (4), and the topcoat layer (6) is located on the outside of the intermediate paint layer (5). The front connecting end (2) includes a front connecting end (201) and an external thread end (202), and the front connecting end (201) and the external thread end (202) are integrally formed structures; The rear connection end (3) includes a rear connection end (301) and an internal thread end (302), and the rear connection end (301) and the internal thread end (302) are integrally formed structures; The front connecting end (2) and the rear connecting end (3) are connected by an external thread end (202) and an internal thread end (302), and a sealing gasket (7) is provided on the inner side of both the front connecting end (2) and the rear connecting end (3). The pipe body (1) has a pressure sensor mounting hole inside, and a piezoresistive pressure sensor (8) is installed inside the pressure sensor mounting hole. The pipe body (1) has a wire hole, and the wires on the piezoresistive pressure sensor (8) are led out through the wire hole. A sealing joint is provided at the position of the wire hole. A flow sensor (9) is provided on the outer surface of the pipe body (1), and the flow sensor (9) is in close contact with the pipe body (1).

2. A water conservancy pipeline for water conservancy projects according to claim 1, characterized in that: The inner wall of the pipe body (1) is provided with a ceramic coating (10).

3. A water conservancy pipeline for water conservancy projects according to claim 1, characterized in that: The pipe body (1) has an internal thread at its end and a filter element (11) at its end. The filter element (11) has an external thread and is connected to the pipe body (1) by the internal and external threads.

4. A water conservancy pipeline for water conservancy projects according to claim 1, characterized in that: The end of the pipe body (1) is provided with a fixing component, which includes a U-shaped seat (12), two fixing plates (13) and an adjusting bolt (14). The two fixing plates (13) are symmetrically arranged inside the U-shaped seat (12). The adjusting bolt (14) is provided on both sides of the U-shaped seat (12). The U-shaped seat (12) has an internal thread hole, and the adjusting bolt (14) is connected to the U-shaped seat (12) through the internal thread. The adjusting bolt (14) inside the U-shaped seat (12) is movably connected to the fixing plate (13).

5. A water conservancy pipeline for water conservancy projects according to claim 4, characterized in that: A rubber pad (15) is provided at the bottom of the inside of the spiral seat (12).