CN219510324U

CN219510324U - Large-caliber multi-layer composite drinking water pipeline

Info

Publication number: CN219510324U
Application number: CN202223544990.4U
Authority: CN
Inventors: 李斌
Original assignee: Hebei Ruichuan Frp Co ltd
Current assignee: Hebei Ruichuan Frp Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-08-11
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of glass fiber reinforced plastic composite materials, carbon steel and PE three-layer composite, and discloses a large-caliber multi-layer composite drinking water pipeline. According to the utility model, the PE polyethylene material is firmly held by the steel wire mesh welded on the inner wall of the steel pipe, the PE polyethylene material is adsorbed on the inner wall of the steel pipe and the surface of the steel wire mesh after being heated and melted by the steel pipe, a lining layer is formed, and the steel pipe can fully penetrate into the heating wire mesh to realize connection of the outer pipes after being heated and melted, so that the connection firmness degree of the inner pipe and the outer pipe is improved. The outside of the steel pipe is polished, and is wound by the composite material combined by resin, glass fiber cloth and glass fiber yarn, so that the corrosion resistance is realized, the secondary pollution effect is avoided, the glass fiber reinforced plastic stability and the corrosion resistance are good, the integral use strength of the pipeline is improved, and the integral service life of the pipeline is prolonged.

Description

Large-caliber multi-layer composite drinking water pipeline

Technical Field

The utility model relates to the technical field of glass fiber reinforced plastic composite materials, in particular to a large-caliber multi-layer composite drinking water pipeline.

Background

The drinking water pipeline is a polyethylene plastic pipeline, has the characteristics of being excellent in resisting most chemicals for life and industry, is widely applied to the water supply and drainage fields of highways, railways, greening, urban water supply and drainage, underground irrigation and the like, is generally laid underground or exposed outside when being used, and is internally provided with a plastic pipe, so that the drinking water pipeline has no pressure resistance, the outer surface of the traditional pipeline is provided with a metal pipe sleeve for wrapping, meanwhile, the outer pipe and the inner pipe of the traditional pipeline are connected in a sleeving manner, the integral use strength of the pipeline is not high, and the damage is easy to occur, so that a large-caliber multi-layer composite drinking water pipeline is provided by a person skilled in the art to solve the problems in the background art.

Disclosure of Invention

The utility model aims to solve the defects existing in the prior art, and provides a large-caliber multi-layer composite drinking water pipeline which adopts a Chinese rotary plastic forming process technology, skillfully and reasonably combines the pressure-resistant advantage of steel with the corrosion-resistant advantage of plastic, effectively overcomes the respective deadly weaknesses of non-corrosion resistance of steel and non-pressure resistance of plastic, and can achieve the maximum allowable limit of transportation road conditions, generally 1-5 m, by the technical advantage of Chinese rotary plastic. Therefore, it integrates the outstanding advantages of three pipelines of steel pipe, plastic pipe and PCCP pipe, and is an ideal new pipe. The material cost is lower than that of an equal-caliber steel pipe, the zero emission of three wastes is realized, the environment is protected, the electricity consumption is little, the heat source adopts liquefied petroleum gas or natural gas, and the service life is longer than 50 years. Is a new product and a new technology with energy conservation, environmental protection, high efficiency and resource conservation. The product can be widely applied to large hydraulic engineering, raw water inlet pipes of tap water and urban drainage manifolds.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the large-caliber multi-layer composite drinking water pipeline comprises a protective layer, wherein an outer pipe is fixedly arranged on the inner surface of the protective layer;

the inner surface of the outer tube is fixedly provided with a heating net, and the inner surface of the heating net is fixedly provided with an inner tube;

through above-mentioned technical scheme, through being provided with the inoxidizing coating outside the pipeline, be favorable to promoting the holistic corrosion resistance of this pipeline, guarantee that the pipeline buries underground after using life, through being provided with the outer tube in the pipeline, be favorable to promoting the holistic intensity of use of this pipeline, avoid the pipeline to take place to fracture in the construction installation, through being provided with the heating network in the pipeline, be favorable to this pipeline when processing, through the heating network, adopt the hot melt mode to soften the inner tube, realize that the inner tube can combine better with between the outer tube, through being provided with the inner tube in the pipeline, be favorable to realizing this pipeline as the basic service function of running water delivery pipe.

Further, the protective layer is made of an FPR composite material;

through the technical scheme, the FPR composite material is a fiber reinforced composite material, the material has high specific strength and large specific modulus, the material performance has designability, the corrosion resistance and the durability are good, and the thermal expansion coefficient is similar to that of concrete, so that the requirements of the pipe on large span, high rise, heavy load, light weight and high strength and working under severe conditions can be met, the integral use strength of the pipe is improved, and the use effect of the pipe is improved.

Further, the outer tube is made of carbon steel material;

through above-mentioned technical scheme, carbon steel is the iron-carbon alloy that carbon content is 0.0218% -2.11%, and carbon steel itself has firm antidetonation's advantage, compares in other steels, and carbon steel has better corrosion resistance, uses as tubular product, can effectively promote the durability of pipeline, simultaneously, carbon steel compares in other materials, has green recoverable characteristics, is favorable to promoting the holistic feature of environmental protection of this pipeline to, carbon steel uses as tubular product, compares in other materials can realize more outstanding intensity under lighter and thinner circumstances, reduces the manufacturing cost of this pipeline, promotes the economic benefits that this pipeline production was used.

Further, the heating net is made of nickel-chromium composite alloy materials;

through above-mentioned technical scheme, the nichrome heating wire is high in the intensity of use in high temperature environment, and long-term high temperature operation is difficult for deformation, is difficult for changing the structure, and simultaneously, nichrome heating wire's normal atmospheric temperature plasticity is good, and restoration after the deformation is comparatively simple, is favorable to using as the linking material between each layer of pipeline to, nichrome heating wire's radiance is high, does not take magnetism, is difficult for causing the pollution to the water, and corrosion-resistant ability is good, and after long-term use, the material can not become brittle, long service life.

Further, the inner tube is made of environment-friendly PE material;

through the technical scheme, the environment-friendly PE material is mainly composed of polyethylene, and compared with the traditional metal pipe and cement pipe, the environment-friendly PE material is odorless and nontoxic, has wax-like hand feeling, can resist low temperature, has good chemical stability, small water absorption, high rigidity, hardness and strength, strong radiation resistance, convenient transportation and easy installation and construction, and is an excellent material used as a water supply pipeline.

Further, the inner pipe is fixedly connected with the outer pipe through hot melt infiltration of a heating net;

through above-mentioned technical scheme, be favorable to the heating to make PE material combine with carbon steel inner tube better, corrosion resistance and result of use when promoting this pipeline and using.

Further, the FPR composite material is glass fiber reinforced plastic;

through the technical scheme, the glass fiber reinforced plastic has the density of about 1.7, is 4-5 times lighter than steel, has high strength, has the tensile strength of 350-450 MPa, is close to that of common carbon steel, has good dimensional stability and weather resistance when in use, is not easy to deform, is buried underground for a long time, cannot be corroded, and is beneficial to prolonging the service life of the whole pipeline.

The utility model has the following beneficial effects:

1. compared with the existing large-caliber multi-layer composite pipeline, the large-caliber multi-layer composite pipeline is fixedly provided with a layer of protective layer outside the outer pipe, the protective layer is mainly made of FPR composite material glass fiber reinforced plastic, special anti-corrosion treatment is not needed for the glass fiber reinforced plastic pipeline, the heat insulation layer can be thinned, even heat insulation treatment is not needed, the pipeline is light, the tonnage of hoisting equipment is small, the power consumption is low, the length of the glass fiber reinforced plastic pipeline is longer than that of a cement pipe and a cast iron pipe, joints are relatively reduced, the installation and maintenance cost can be reduced, meanwhile, the glass fiber reinforced plastic pipeline is good in dimensional stability and weather resistance, the material is not easy to deform, the glass fiber reinforced plastic pipeline is buried underground for a long time, and the whole use effect of the pipeline is ensured.

2. Compared with the existing large-caliber multi-layer composite pipeline, the large-caliber multi-layer composite pipeline provided by the utility model has the advantages that the heating net and the inner pipe are arranged in the large-caliber multi-layer composite pipeline, the inner pipe is fixedly connected with the outer pipe through the hot melting penetration of the heating net, the inner pipe can fully penetrate into the heating net to realize the connection of the outer pipes after being heated and melted, the connection firmness degree of the inner pipe and the outer pipe is improved, the integral use strength of the pipeline is improved, and the integral service life of the pipeline is prolonged.

3. Compared with the existing large-caliber multi-layer composite pipeline, the large-caliber multi-layer composite pipeline provided by the utility model has the advantages that the inner pipe is made of the environment-friendly PE material, the PE material is odorless and nontoxic, can resist low temperature, has good chemical stability, is used as the inner pipe, is directly contacted with a water source, is beneficial to avoiding the pollution of the water body, and improves the use safety of the pipeline as a water conveying pipeline.

Drawings

FIG. 1 is a schematic axial view of a large-caliber multi-layer composite drinking water pipeline according to the present utility model;

FIG. 2 is a schematic front view of a large-caliber multi-layer composite drinking water pipeline according to the present utility model;

FIG. 3 is a schematic side view of a large-caliber multi-layer composite drinking water pipeline according to the present utility model;

fig. 4 is a schematic side sectional view of a large-caliber multi-layer composite drinking water pipeline according to the present utility model.

Legend description:

1. a protective layer; 2. an outer tube; 3. a heating net; 4. an inner tube.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, one embodiment provided by the present utility model is: the large-caliber multi-layer composite drinking water pipeline comprises a protective layer 1, is favorable for providing protection for the whole use of the pipeline, prolonging the service life of the pipeline, and is favorable for enhancing the whole strength of the pipeline and improving the use effect of the pipeline, wherein an outer pipe 2 is fixedly arranged on the inner surface of the protective layer 1;

the heating net 3 is fixedly arranged on the inner surface of the outer pipe, the inner pipe 4 is fixedly arranged on the inner surface of the heating net 3, the pipeline can be used as a water supply pipe normally, and the stability of connection between all structures of the pipeline is improved.

The protective layer 1 is made of an FPR composite material, the FPR composite material is high in specific strength and specific modulus, and the material performance is designable and good in corrosion resistance and durability. The steel pipe can be used as an excellent protective material of a long-span pipeline, the outer pipe 2 is made of a carbon steel material, the carbon steel is made of an iron-carbon alloy with carbon content of 0.0218% -2.11%, the carbon steel has the advantages of firmness and shock resistance, compared with other steels, the carbon steel has better corrosion resistance, the steel pipe is used as a pipe, the durability of the pipeline can be effectively improved, the outer pipe 2 is made of the carbon steel, the integral use strength of the pipeline is improved, and the pipeline is prevented from being damaged in the construction and installation process.

The heating net 3 is made of a nickel-chromium composite alloy material, the nickel-chromium alloy heating wire has high use strength in a high-temperature environment, is not easy to deform and change structure after long-term high-temperature operation, is used as a bonding layer of a pipeline, cannot become brittle after long-time use, has long service life, is made of an environment-friendly PE material, is odorless and nontoxic, is used as an inner pipe 4, is directly contacted with a water body, and is favorable for ensuring that the water body cannot be polluted and improving the integral use safety of the pipeline.

The inner pipe 4 is in hot melt infiltration and outer pipe 2 fixed connection through heating net 3, is favorable to promoting the firm degree of connection between inner pipe 4 and outer pipe 2, promotes the holistic intensity of pipeline, and FPR combined material is glass steel, is favorable to avoiding the pipeline to be corroded after burying underground, further promotes tubular product intensity.

Working principle: when the pipeline is processed, the heating net 3 can be used for heating the inner pipe 4, the inner pipe 4 after hot melting can be used for carrying out hot melting, the inner pipe 4 after hot melting can penetrate the heating net 3 and is better fixedly connected with the outer pipe 2, the protection effect on the pipeline can be achieved through the protection layer 1, the pipeline is prevented from being corroded after being buried underground, and the inner pipe 2 and the inner pipe 4 are combined, so that the basic use function can be realized while the basic use strength of the pipeline is ensured.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a heavy-calibre multilayer composite drinking water pipe way, includes inoxidizing coating (1), its characterized in that: an outer tube (2) is fixedly arranged on the inner surface of the protective layer (1);

the heating net (3) is fixedly arranged on the inner surface of the outer tube (2), and the inner tube (4) is fixedly arranged on the inner surface of the heating net (3).

2. The large-caliber multi-layer composite drinking water pipeline according to claim 1, wherein: the protective layer (1) is made of FPR composite materials.

3. The large-caliber multi-layer composite drinking water pipeline according to claim 1, wherein: the outer tube (2) is made of carbon steel material.

4. The large-caliber multi-layer composite drinking water pipeline according to claim 1, wherein: the heating net (3) is made of nickel-chromium composite alloy materials.

5. The large-caliber multi-layer composite drinking water pipeline according to claim 1, wherein: the inner tube (4) is made of environment-friendly PE material.

6. The large-caliber multi-layer composite drinking water pipeline according to claim 1, wherein: the inner pipe (4) is fixedly connected with the outer pipe (2) through hot melt infiltration of the heating net (3).

7. A large caliber multi-layer composite drinking water pipe according to claim 2, wherein: the FPR composite material is glass fiber reinforced plastic.