Glass reinforced concrete composite pipe

Abstract

The utility model provides a kind of glass steel concrete composite pipe, including pressure anticorrosive layer, damage detection structure, intermediate insulating layer, concrete structure layer and protective outer cover, wherein: damage detection structure is embedded in the pipe wall inside of pressure anticorrosive layer, and intermediate insulating layer is wrapped and fixed in the outside of pressure anticorrosive layer, and the concrete structure layer is wrapped and fixed in the outside of intermediate insulating layer;The protective outer cover is wrapped and fixed in the outside of concrete structure layer;The utility model is provided with pressure anticorrosive layer and concrete structure layer, and overall strength is high, whether itself is broken can be detected quickly.

Description

Technical Field

[0001] This utility model relates to the field of fiberglass reinforced concrete composite pipe technology, and in particular to a fiberglass reinforced concrete composite pipe. Background Technology

[0002] Fiberglass reinforced concrete (FRP) composite pipes are high-performance pipes composed of an inner layer of concrete and an outer layer of fiberglass. They utilize the excellent compressive strength of concrete to bear structural loads, while relying on the high strength and corrosion resistance of FRP to provide tensile protection and durability. Combining the advantages of rigid support and flexible crack prevention, they are widely used in demanding fields such as water conservancy projects and municipal water supply and drainage. However, existing FRP composite pipes still suffer from low overall strength and the inability to quickly detect fractures.

[0003] Therefore, it is essential to invent a fiberglass reinforced concrete composite pipe. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a fiberglass reinforced concrete composite pipe, solving the issues of low overall strength and the inability to quickly detect fractures in existing fiberglass reinforced concrete composite pipes. The fiberglass reinforced concrete composite pipe includes a pressure-bearing anti-corrosion layer, a damage detection structure, an intermediate insulation layer, a concrete structural layer, and a protective outer jacket. The damage detection structure is embedded inside the pipe wall of the pressure-bearing anti-corrosion layer, and the intermediate insulation layer is wrapped and fixed to the outside of the pressure-bearing anti-corrosion layer. The concrete structural layer is wrapped and fixed to the outside of the intermediate insulation layer. The protective outer jacket is wrapped and fixed to the outside of the concrete structural layer.

[0005] The pressure-bearing anti-corrosion layer includes a fiberglass pipe, an extended side pipe, and a sensor installation area. The extended side pipe is fixedly installed on the outside of the fiberglass pipe, and the sensor installation area is located inside the extended side pipe.

[0006] The concrete structural layer includes a concrete pipe, a steel reinforcement support frame, an outer adhesive layer and an inner adhesive layer, with the steel reinforcement support frame fixedly installed inside the concrete pipe. The outer and inner adhesive layers are respectively set on the inner and outer surfaces of the concrete pipe. A protective outer jacket is bonded and fixed to the outer side of the outer adhesive layer, and an intermediate insulation layer is bonded and fixed to the outer side of the inner adhesive layer.

[0007] The pressure-bearing and corrosion-resistant layer is entirely supported by fiberglass, and the expansion side pipe is a long strip pipe that protrudes outward and forms a sensor installation area inside it; the expansion side pipe is filled by the groove inside the middle insulation layer, so the pipe as a whole will not bulge; the damage detection structure installed inside the sensor installation area uses a set of flexible bending sensors.

[0008] The concrete pipe inside the concrete structure layer is made of a single concrete pipe, and the inner and outer walls of the concrete pipe are ground to a rough surface to form an outer adhesive rough layer and an inner adhesive rough layer; the steel reinforcement support skeleton is a tubular skeleton made of steel reinforcement.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The pressure-bearing anti-corrosion layer of this utility model can utilize the excellent mechanical and chemical properties of fiberglass pipes to withstand internal fluid pressure and resist the erosion of various corrosive media. At the same time, its dense structure ensures the pipe's leak-proof performance. In addition, through the uniquely designed extension side pipe and the sensor installation area formed inside it, this layer provides a protected embedding space for the integrated damage detection structure, giving it intelligent real-time status monitoring capabilities while ensuring the pressure-bearing and anti-corrosion function of the main pipe body.

[0010] The concrete structural layer of this utility model can withstand external earth pressure, ground load and other mechanical impacts together with the internal steel reinforcement frame and the outer concrete pipe, ensuring the stability and deformation resistance of the overall pipe structure. At the same time, the outer and inner adhesive roughened layers formed by special treatment on the inner and outer surfaces significantly enhance the bonding strength with the protective jacket and the middle insulation layer through the roughened interface, effectively preventing interlayer delamination and ensuring the structural integrity of the composite pipe under long-term complex working conditions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the pressure-bearing anti-corrosion layer of this utility model.

[0013] Figure 3 This is a schematic diagram of the concrete structural layer of this utility model.

[0014] In the picture: 1. Pressure-bearing anti-corrosion layer, 11. Fiberglass pipe, 12. Extended side pipe, 13. Sensor installation area, 2. Damage detection structure, 3. Intermediate insulation layer, 4. Concrete structural layer, 41. Concrete pipe, 42. Reinforcing steel support skeleton, 43. Outer adhesive layer, 44. Inner adhesive layer, 5. Protective outer jacket. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0016] As attached Figure 1 To be continued Figure 3 As shown.

[0017] This utility model provides a fiberglass reinforced concrete composite pipe, comprising a pressure-bearing anti-corrosion layer 1, a damage detection structure 2, an intermediate insulation layer 3, a concrete structural layer 4, and a protective outer jacket 5, wherein: the damage detection structure 2 is embedded inside the pipe wall of the pressure-bearing anti-corrosion layer 1, and the intermediate insulation layer 3 is wrapped and fixed to the outside of the pressure-bearing anti-corrosion layer 1, and the concrete structural layer 4 is wrapped and fixed to the outside of the intermediate insulation layer 3; the protective outer jacket 5 is wrapped and fixed to the outside of the concrete structural layer 4.

[0018] The pressure-bearing anti-corrosion layer 1 includes a fiberglass pipe 11, an extension side pipe 12, and a sensor installation section 13. The extension side pipe 12 is fixedly installed on the outside of the fiberglass pipe 11, and the sensor installation section 13 is opened inside the extension side pipe 12.

[0019] The concrete structure layer 4 includes a concrete pipe 41, a steel reinforcement support frame 42, an outer adhesive layer 43, and an inner adhesive layer 44. The steel reinforcement support frame 42 is fixedly installed inside the concrete pipe 41. The outer adhesive layer 43 and the inner adhesive layer 44 are respectively provided on the inner and outer surfaces of the concrete pipe 41. A protective outer jacket 5 is bonded and fixed to the outer side of the outer adhesive layer 43. An intermediate insulation layer 3 is bonded and fixed to the outer side of the inner adhesive layer 44.

[0020] The pressure-bearing anti-corrosion layer 1 is entirely supported by fiberglass, and the expansion side pipe 12 is a long strip pipe that protrudes outward and forms a sensor installation area 13 inside it; the expansion side pipe 12 is filled by the groove inside the middle insulation layer 3, so the pipe as a whole will not bulge; the damage detection structure 2 installed inside the sensor installation area 13 is a set of flexible bending sensors.

[0021] The concrete pipe 41 inside the concrete structure layer 4 is a single concrete pipe, and the inner and outer walls of the concrete pipe 41 are ground to a rough surface to form an outer adhesive rough layer 43 and an inner adhesive rough layer 44; the steel reinforcement support skeleton 42 is a tubular skeleton made of steel reinforcement.

[0022] The working principle of this fiberglass reinforced concrete composite pipe is based on the functional synergy of its multi-layered composite structure. Its core workflow begins with the inner pressure-bearing and corrosion-resistant layer 1. The fiberglass pipe 11 in this layer directly bears the fluid pressure and provides excellent corrosion resistance, ensuring the safety and sealing of the medium transport. Simultaneously, the damage detection structure 2, integrated into the sensor installation area 13 within the extended side pipe 12, monitors pipe deformation in real time, enabling intelligent early warning. The outer intermediate insulation layer 3 maintains fluid temperature stability through thermal insulation, reducing heat loss.

[0023] External mechanical load-bearing capacity and long-term stability are ensured by the concrete structural layer 4, whose reinforced steel support frame 42, together with the concrete pipe 41, resists earth pressure and external loads. The rough interface achieved through the outer adhesive rough layer 43 and the inner adhesive rough layer 44 significantly enhances the bonding strength with the protective outer jacket 5 and the intermediate insulation layer 3, preventing interlayer separation. The outermost protective outer jacket 5 acts as a final barrier, resisting environmental erosion and mechanical damage. Through functional complementarity and interface synergy, each structural layer ultimately achieves integrated and efficient operation of the pipeline in terms of pressure bearing, corrosion prevention, insulation, structural support, and intelligent monitoring.

[0024] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A fiberglass reinforced concrete composite pipe, characterized in that: It includes a pressure-bearing anti-corrosion layer (1), a damage detection structure (2), an intermediate insulation layer (3), a concrete structure layer (4), and a protective outer jacket (5), wherein: the damage detection structure (2) is embedded inside the pipe wall of the pressure-bearing anti-corrosion layer (1), and the intermediate insulation layer (3) is wrapped and fixed on the outside of the pressure-bearing anti-corrosion layer (1), and the concrete structure layer (4) is wrapped and fixed on the outside of the intermediate insulation layer (3); the protective outer jacket (5) is wrapped and fixed on the outside of the concrete structure layer (4).

2. The fiberglass reinforced concrete composite pipe as described in claim 1, characterized in that: The pressure-bearing anti-corrosion layer (1) includes a fiberglass pipe (11), an extension side pipe (12), and a sensor installation section (13). The extension side pipe (12) is fixedly installed on the outside of the fiberglass pipe (11), and the sensor installation section (13) is opened inside the extension side pipe (12).

3. The fiberglass reinforced concrete composite pipe as described in claim 1, characterized in that: The concrete structure layer (4) includes a concrete pipe (41), a steel reinforcement support frame (42), an outer adhesive layer (43) and an inner adhesive layer (44), and the steel reinforcement support frame (42) is fixedly installed inside the concrete pipe (41). The outer adhesive layer (43) and the inner adhesive layer (44) are respectively set on the inner and outer surfaces of the concrete pipe (41). The outer adhesive layer (43) is bonded and fixed with a protective outer jacket (5). The inner adhesive layer (44) is bonded and fixed with an intermediate insulation layer (3).

4. The fiberglass reinforced concrete composite pipe as described in claim 2, characterized in that: The pressure-bearing anti-corrosion layer (1) is entirely supported by fiberglass, and the expansion side pipe (12) is a long strip pipe. The expansion side pipe (12) protrudes outward and forms a sensor installation area (13) inside it. The expansion side pipe (12) is filled by the groove inside the middle insulation layer (3), and the pipe as a whole will not bulge. The damage detection structure (2) installed inside the sensor installation area (13) adopts a set of flexible bending sensors.

5. A fiberglass reinforced concrete composite pipe as described in claim 3, characterized in that: The concrete pipe (41) inside the concrete structure layer (4) is a single concrete pipe, and the inner and outer walls of the concrete pipe (41) are ground into rough surfaces to form an outer adhesive rough layer (43) and an inner adhesive rough layer (44); the steel reinforcement support skeleton (42) is a tubular skeleton made of steel reinforcement.

Images