Composite municipal pipeline with metal framework

Abstract

The utility model provides a composite municipal pipeline with a metal framework, which is characterized by comprising a fiber anti-seepage layer, a fiber resin-based concrete layer and an outer annular fiber coating layer which are sequentially arranged from inside to outside, and the layers are wound and coated by leaching resin; the metal framework reinforcing layer is poured in the fiber resin-based concrete layer and is used for increasing the axial strength and the circumferential strength of the pipeline; in combination with the effects, axial and circumferential strength and rigidity of the municipal pipeline can be better guaranteed, deformation of the pipeline under various loads is reduced, safety of the pipeline in the construction and use process is effectively guaranteed, the service life of a product is prolonged, and operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of municipal pipelines, in particular to a composite municipal pipeline with a metal skeleton. Background Art

[0002] Fiber-reinforced resin composite municipal pipes are an excellent type of pipe system. Their application range covers a wide range of key links in urban water management, including drinking water supply, wastewater discharge, sewage treatment and recycling, and agricultural irrigation systems. With their unique structural design and material innovation, this type of pipe plays a vital role in municipal infrastructure construction, ensuring the efficiency and durability of fluid transmission.

[0003] Traditionally, the structure of such pipelines is an ingenious combination of three layers: the inner layer is carefully made of highly corrosion-resistant resin materials to form a solid barrier that effectively isolates and protects the conveying medium from erosion while ensuring the sealing of the pipeline; the middle layer cleverly introduces a fiber-wound sand-interlayer, which not only gives the pipeline extraordinary strength and rigidity, but also enables it to calmly cope with complex pressure challenges from inside and outside the pipeline; the outer layer, as a protective coat, is made of special materials to effectively resist erosion and physical damage from the harsh external environment and extend the service life of the pipeline;

[0004] However, although such pipelines have demonstrated excellent performance in many aspects, there is still room for improvement in optimizing their axial bearing capacity. In complex municipal construction environments, pipelines will inevitably face the test of multiple axial and hoop stresses such as soil pressure and traffic loads. Unfortunately, under the current technical system, due to the lack of effective distribution and support in pipeline design, pipelines face the risk of increased deformation, crack initiation and even fracture under extreme or high-intensity axial and hoop loads. Therefore, how to further improve the axial strength of pipelines has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] In order to solve the problem of lack of effective distribution and support in pipeline design in the prior art, which makes it face the problem of aggravated deformation, crack initiation and even fracture under extreme or high-intensity axial and circumferential loads, the utility model provides a composite municipal pipeline with a metal skeleton;

[0006] The utility model provides a composite municipal pipeline with a metal skeleton adopts the following technical solution:

[0007] A composite municipal pipeline with a metal skeleton, characterized in that it includes a fiber water-proof layer, a fiber resin-based concrete layer, and an outer annular fiber coating layer arranged in sequence from the inside to the outside, and each layer is wrapped and coated by impregnation resin;

[0008] It also includes a metal skeleton reinforcement layer, which is poured into the fiber resin-based concrete layer to increase the axial strength and circumferential strength of the pipeline;

[0009] Furthermore, the fiber water-proof layer includes chopped fibers and fiber fabrics, which are arranged on the outside of the mold core of the municipal pipeline by impregnation with resin;

[0010] Furthermore, the fiber resin-based concrete layer includes continuous fibers, chopped fibers, quartz sand, metal fibers, and fabrics, which are arranged on the outside of the fiber water-proof layer by impregnation with resin;

[0011] Furthermore, the outer annular fiber coating layer is disposed on the outer side of the fiber resin-based concrete layer containing the metal skeleton reinforcement layer by impregnation with resin;

[0012] Furthermore, the outer annular fiber coating layer may be one of continuous fibers or glass fiber cloth;

[0013] Furthermore, the metal skeleton reinforcement layer includes continuous fibers, fabrics, and chopped fibers; the metal skeleton reinforcement layer also includes reinforcing wires; the reinforcing wires are evenly distributed in the metal skeleton reinforcement layer in the form of at least one layer of mesh, the number of winding layers of the reinforcing wires (31) is N layers, N≥1; and are arranged in the fiber resin-based concrete layer (2) by impregnation with resin;

[0014] Furthermore, the reinforcing wires are equidistantly distributed in the metal skeleton reinforcement layer in the annular direction;

[0015] Furthermore, the reinforcing wire is a high-strength steel wire.

[0016] In summary, the beneficial effects of the utility model are:

[0017] 1. The utility model increases the hoop rigidity and axial strength of municipal pipes by adding a metal skeleton reinforcement layer; due to the addition of metal skeleton materials such as high-strength steel wire, metal fiber and fabric, the material has a high elastic modulus, high strength and is not easy to deform, ensuring that the pipe structure is not easy to be damaged, which makes the pipe product have extremely high axial tensile strength and hoop strength; when the pipe is subjected to external force, these metal skeletons can effectively bear the axial stress and hoop pressure, thereby improving the overall performance of the pipe;

[0018] 2. The outer annular fiber coating layer uses continuous fiber or glass fiber cloth, and the fiber distribution is more reasonable, which will improve the overall performance of the product, and improve the compressive strength, fatigue resistance and weather resistance of the pipeline;

[0019] Combined with the above effects, this application can better ensure the axial and circumferential strength and stiffness of municipal pipelines, reduce the deformation of pipelines under various loads, effectively ensure the safety of pipelines during construction and use, increase product service life, and reduce operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0022] As shown in the figure: 1-fiber anti-seepage layer, 2-fiber resin-based concrete layer, 3-metal skeleton reinforcement layer, 31-reinforcement wire; 4-external annular fiber coating layer. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-2 The utility model is further described in detail:

[0024] The utility model embodiment discloses a composite municipal pipeline with a metal frame, such as Figure 1 As shown, a composite municipal pipeline with a metal skeleton is characterized in that it includes a fiber water-proof layer 1, a fiber resin-based concrete layer 2, and an outer annular fiber coating layer 4 arranged in sequence from the inside to the outside, and each layer is wrapped and coated by impregnation resin;

[0025] It also includes a metal skeleton reinforcement layer 3, which is poured into the fiber resin-based concrete layer 2 to increase the axial strength and circumferential strength of the pipeline. In this embodiment, the addition of the metal skeleton reinforcement layer 3 significantly improves the axial and circumferential bearing capacity of the pipeline, giving full play to the high strength characteristics of the metal and utilizing the reinforcement effect of the fiber, making the pipeline structure more stable.

[0026] In addition, each layer is wrapped and coated with resin to form a tight connection, which effectively prevents the penetration of water or other media and ensures the sealing of the pipeline.

[0027] like Figure 1 As shown, the fiber water-proof layer 1 includes short-cut fibers and fiber fabrics, which are arranged on the outside of the mold core of the municipal pipeline by impregnation with resin; in this embodiment, the fiber water-proof layer 1 is the innermost layer, and is made of short-cut fibers and fiber fabrics, which has excellent water-proof performance, ensuring that the medium inside the pipeline will not seep out, while maintaining the purity of the medium;

[0028] like Figure 1As shown, the fiber resin-based concrete layer 2 includes continuous fibers, chopped fibers, quartz sand, metal fibers, and fabrics, which are arranged on the outside of the fiber anti-seepage layer 1 by impregnation with resin; in this embodiment, this layer is the main structure of the pipeline, which combines the excellent properties of fiber and resin-based concrete, has both the strength of concrete and the reinforcement effect of fiber, so that the pipeline as a whole has extremely high compressive strength, bending strength and durability. In addition, by adding metal fibers, the overall rigidity of the present application is also effectively increased, and the structural strength is higher;

[0029] like Figure 1 As shown, the outer annular fiber coating layer 4 is arranged on the outside of the fiber resin-based concrete layer 2 containing the metal skeleton reinforcement layer 3 by impregnation with resin; in this embodiment, the outer annular fiber coating layer 4 is the outermost layer, which not only enhances the annular strength of the pipeline, but also provides additional protection to prevent the external environmental factors from corroding the internal structure of the pipeline;

[0030] like Figure 1 As shown, the outer annular fiber coating 4 can be one of continuous fibers or glass fiber cloth; in this embodiment, the outer annular fiber coating 4 can use continuous fibers or glass fiber cloth, wherein the continuous fibers have extremely high strength and modulus, which means that they can withstand greater tensile and compressive loads, thereby improving the overall load-bearing capacity of the pipeline. This characteristic enables the pipeline to better maintain shape stability and structural integrity when subjected to complex stresses; and continuous fibers generally have good durability and can resist environmental erosion and fatigue damage; this helps to extend the service life of the pipeline and reduce the cost of repair and replacement; using continuous fibers as the material for the outer annular fiber coating 4, the arrangement and density of the fibers can be adjusted according to specific needs to optimize the performance of the pipeline; this design flexibility allows the pipeline to adapt to different working conditions and environmental conditions;

[0031] In addition, the use of glass fiber cloth can resist the erosion of chemical substances such as acid and alkali; this makes it an ideal material for use in corrosive environments and can protect the pipeline from erosion by the medium and the external environment; although the glass fiber cloth is lightweight, it has high strength; this property enables it to improve the load-bearing capacity and deformation resistance of the pipeline without increasing the overall weight of the pipeline; glass fiber cloth is easy to process and install, and can be tightly combined with other layers of the pipeline by means of resin impregnation, etc.; this helps to simplify the construction process and improve construction efficiency and quality; compared with other high-performance materials, the cost of glass fiber cloth is relatively low; this enables it to reduce the production cost and use cost of the pipeline while meeting the performance requirements;

[0032] like Figure 1As shown, the metal skeleton reinforcement layer 3 includes continuous fibers, fabrics, and chopped fibers; the metal skeleton reinforcement layer 3 also includes reinforcing wires 31; the reinforcing wires 31 are evenly distributed in the metal skeleton reinforcement layer 3 in the form of a mesh of at least one layer; the number of layers of the reinforcing wires 31 is N layers, N ≥ 1; and the reinforcing wires 31 are arranged in the fiber resin-based concrete layer 2 by impregnation with resin; in this embodiment, the continuous fibers, fabrics, chopped fibers, and reinforcing wires 31 are arranged in the fiber resin-based concrete layer 2, which significantly improves the axial and circumferential bearing capacity of the pipeline, and effectively prevents the pipeline from deformation, cracking, or even rupture under complex stress;

[0033] In addition, the reinforcing wires 31 are arranged in a mesh structure, which can be evenly distributed in the entire pipe cross section to form a three-dimensional reinforcement network; this structure can significantly improve the overall strength and rigidity of the pipe, especially in resisting complex stress; and can effectively restrain the deformation of the pipe material, so that the pipe can better maintain shape stability when subjected to external forces; this feature is useful for preventing the pipe from being deformed and damaged under complex working conditions; it can further disperse the stress borne by the pipe to the entire network, thereby reducing the risk of local stress concentration; this effect of dispersing stress helps to extend the service life of the pipe and improve its reliability;

[0034] like Figure 2 As shown, the reinforcing wires 31 are equidistantly distributed in the metal skeleton reinforcement layer 3 in the circumferential direction; in this embodiment, the circumferentially distributed reinforcing wires 31 mainly strengthen the bearing capacity of the pipeline in the circumferential direction; this structure enables the pipeline to better maintain structural integrity and stability when subjected to circumferential pressure or bending load; during the pipeline laying process, especially the buried pipeline, it is necessary to withstand the circumferential pressure from the soil and ground load; the circumferentially distributed reinforcing wires 31 can effectively improve the circumferential pressure resistance of the pipeline and prevent the pipeline from being deformed or damaged due to excessive external pressure; the circumferentially distributed metal wires can also improve the durability of the pipeline; during the long-term operation of the pipeline, the circumferential stress is one of the main factors leading to fatigue damage of the pipeline; the circumferential bearing capacity of the pipeline is enhanced by the circumferentially distributed reinforcing wires 31, which helps to reduce the risk of fatigue damage and extend the service life of the pipeline;

[0035] The reinforcing wire 31 is a steel wire. In the present embodiment, the reinforcing wire 31 may be a steel wire, or a higher strength steel wire. The high strength steel wire has high plasticity, which means that when an external force forces the pipeline to deform, the steel wire is not easy to break, thereby maintaining the integrity and stability of the pipeline. This characteristic helps prevent the pipeline from collapsing or breaking when subjected to external force impact or natural disasters. In addition, the high strength steel wire also has a higher impact absorption capacity, which can more effectively absorb and disperse external impact energy, further protecting the pipeline from damage.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A composite municipal pipeline with a metal skeleton, characterized in that: It comprises a fiber water-proof layer (1), a fiber resin-based concrete layer (2), and an outer annular fiber coating layer (4) which are arranged in sequence from the inside to the outside, and each layer is wrapped and coated by impregnation resin; It also comprises a metal skeleton reinforcement layer (3), which is located between the fiber resin-based concrete layer (2) and the outer annular fiber coating layer (4) and is used to increase the axial strength and annular strength of the pipeline.

2. A composite municipal pipeline with a metal skeleton according to claim 1, characterized in that: The fiber water-proof layer (1) is arranged on the outside of the mold core of the municipal pipeline by impregnation with resin.

3. A composite municipal pipeline with a metal skeleton according to claim 1, characterized in that: The fiber resin-based concrete layer (2) is arranged on the outside of the fiber water-proof layer (1) by impregnation with resin.

4. A composite municipal pipeline with a metal skeleton according to claim 1, characterized in that: The outer annular fiber coating layer (4) is arranged on the outside of the metal skeleton reinforcement layer (3) by impregnation with resin.

5. A composite municipal pipeline with a metal skeleton according to claim 4, characterized in that: The outer annular fiber coating layer (4) may be one of continuous fibers or glass fiber cloth.

6. A composite municipal pipeline with a metal skeleton according to claim 1, characterized in that: The metal skeleton reinforcement layer comprises reinforcing wires (31); the reinforcing wires (31) are evenly distributed in the metal skeleton reinforcement layer (3) in a mesh shape; and are arranged on the outside of the fiber resin-based concrete layer (2) by impregnation with resin.

7. A composite municipal pipeline with a metal skeleton according to claim 6, characterized in that: The reinforcing wires (31) are axially equidistantly distributed within the metal skeleton reinforcement layer (3).

8. A composite municipal pipeline with a metal skeleton according to claim 6, characterized in that: The reinforcing wires (31) are equidistantly distributed in the metal skeleton reinforcement layer (3) in the annular direction.

9. A composite municipal pipeline with a metal skeleton according to any one of claims 6 to 8, characterized in that: The reinforcing wire (31) is a steel wire.

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