阅读说明：本技术 一种纤维增强多性能复合管 (Fiber-reinforced multi-performance composite pipe ) 是由 于长河 于 2020-03-16 设计创作，主要内容包括：本发明涉及一种纤维增强多性能复合管,包括内层坯管、加强网、外保护层,钢丝网包含在内层坯管和外保护层之间的胶黏剂中,内层坯管为纤维增强聚乙烯管；外保护层为纤维增强聚乙烯管。所述内层胚管的外壁缠绕有钢丝网,钢丝网外壁包裹有外保护层；钢丝网形成网状骨架；由于在内层坯管和外保护层中间加入了增强短纤维,增加了HDPE水管耐压强度,使得HDPE水管不易发生破裂,具有良好的抗冲击性能,延长了HDPE水管的使用寿命；并且施工工艺简单,可广泛应用于多种流体输送领域。(The invention relates to a fiber-reinforced multi-performance composite pipe, which comprises an inner layer blank pipe, a reinforcing net and an outer protective layer, wherein a steel wire mesh is contained in an adhesive between the inner layer blank pipe and the outer protective layer, and the inner layer blank pipe is a fiber-reinforced polyethylene pipe; the outer protective layer is a fiber reinforced polyethylene pipe. The outer wall of the inner layer embryonic tube is wound with a steel wire mesh, and the outer wall of the steel wire mesh is wrapped with an outer protective layer; the steel wire mesh forms a mesh framework; the reinforced short fibers are added between the inner layer blank pipe and the outer protective layer, so that the compressive strength of the HDPE water pipe is increased, the HDPE water pipe is not easy to break, the HDPE water pipe has good impact resistance, and the service life of the HDPE water pipe is prolonged; and the construction process is simple, and can be widely applied to the field of conveying various fluids.)

1. The fiber-reinforced multi-performance composite pipe is characterized by comprising an inner layer blank pipe, a reinforcing mesh and an outer protective layer, wherein a steel wire mesh is contained in an adhesive between the inner layer blank pipe and the outer protective layer, and the composite pipe contains reinforcing short fibers.

2. The ultra-high strength multi-performance sandwich composite tube according to claim 1, wherein at least one of the inner layer blank tube, the outer protective layer and the adhesive contains reinforcing short fibers.

3. The fiber reinforced multi-performance composite pipe according to claim 1 or 2, wherein at least one of the inner layer blank pipe and the outer protective layer comprises a reinforcing mesh.

4. A fiber reinforced multi-performance composite pipe according to any one of claims 1 to 3, wherein the composite pipe is coated internally or externally.

5. A fiber reinforced multi-performance composite pipe according to any one of claims 1 to 4, wherein the composite pipe contains hard particles.

6. The fiber reinforced multi-performance composite tube of any one of claims 1 to 5, wherein the composite tube comprises whiskers.

7. The fiber reinforced multi-performance composite tube of any one of claims 1-5, wherein the composite tube comprises heat storage and temperature regulating fibers.

8. The fiber reinforced multi-performance composite pipe according to any one of claims 1 to 5, wherein the composite pipe inner layer parison tube comprises carbon nanofibers.

Technical Field

The invention relates to the field of composite pipes, in particular to a fiber-reinforced multi-performance composite pipe.

Background

In this century, a revolutionary progress has been made in the field of pipelines, namely "steel is replaced by plastic". With the rapid progress of the science and technology of high molecular materials, the development and utilization of plastic pipes are deepened, the production process is continuously improved, and the excellent performance of the plastic pipes is displayed in a dripping way. Today, plastic tubing is no longer mistaken by people as an "inexpensive substitute" for metal tubing. In the revolution, polyethylene pipelines are favored and increasingly brighten, and are widely applied to the fields of gas transportation, water supply, pollution discharge, agricultural irrigation, mine fine particle solid transportation, oil fields, chemical industry, post and telecommunications and the like, particularly the gas transportation. The steel wire net skeleton plastic composite pipe is an improved novel steel skeleton plastic composite pipe. Such tubes are also known as srtp tubes. The novel pipeline is made of high-strength plastic-coated steel wire mesh framework and thermoplastic plastic polyethylene as raw materials, the steel wire winding mesh is used as a framework reinforcement of the polyethylene plastic pipe, high-density polyethylene (HDPE) is used as a matrix, and the steel wire framework is tightly connected with inner and outer layers of high-density polyethylene by adopting high-performance HDPE modified bonding resin, so that the novel pipeline has an excellent composite effect. This composite pipe overcomes the disadvantages of steel and plastic pipes, while maintaining the advantages of steel and plastic pipes, because the high strength steel wire reinforcement is encased in a continuous thermoplastic, which is a highly crystalline, non-polar thermoplastic resin, since High Density Polyethylene (HDPE), a high density polyethylene or HDPE is a commonly used petroleum thermoplastic and you will find it to have a linear structure if you look at this plastic under a microscope, with few branches providing the best strength/density ratio. The high-density polyethylene is a white powder granular product, is nontoxic and tasteless, has the density of 0.940-0.976 g/cm3, the crystallinity of 80-90 percent, the softening point of 125-135 ℃, the use temperature of 100 ℃, the melting temperature of 120-160 ℃, and the recommended melting temperature range of 200-250 ℃ for materials with larger molecules. It has excellent heat resistance, cold resistance, high chemical stability, high rigidity and toughness and high mechanical strength. The dielectric property and the environmental stress cracking resistance are also better. The film has better hardness, tensile strength and creep property than low-density polyethylene, better wear resistance, electrical insulation property, toughness and cold resistance, but slightly worse than low-density insulation property, good chemical stability, insolubility in any organic solvent at room temperature, acid resistance, alkali resistance and corrosion resistance of various salts, small permeability of the film to water vapor and air, low water absorption, poor aging resistance, inferior environmental cracking resistance than low-density polyethylene, and especially the performance of the film is reduced by thermal oxidation, so that the resin needs to be added with an antioxidant, an ultraviolet absorbent and the like to improve the defect. The high-density polyethylene film has lower thermal deformation temperature under the stress condition, and the composite pipeline manufactured by the high-density polyethylene film also has the defects.

Disclosure of Invention

In order to solve the above problems, the present invention provides a fiber reinforced multi-performance composite pipe, which includes an inner layer blank pipe, a reinforcing mesh, and an outer protective layer, wherein a steel wire mesh is included in an adhesive between the inner layer blank pipe and the outer protective layer, and the composite pipe includes reinforcing short fibers. The short fiber has the advantages of uniform dispersion, various feeding modes, simple process and the like, can be applied to the special field which is not suitable for the carbon fiber filament, has good flexibility, strong pressure resistance, low manufacturing cost and long service life, can not generate the phenomenon of stress concentration and fracture of a joint, can effectively resist internal pressure fluctuation and water hammer impact force, and can be used for manufacturing various caliber products according to the requirements of users. The inner layer blank pipe and the outer protective layer are made of one or more materials of aluminum, magnesium, copper, titanium and alloy thereof, synthetic resin, rubber, ceramics, graphite and carbon, the reinforcing material is one or more materials of reinforcing fibers, whiskers, metal wires and hard fine particles, the adhesive is organic adhesive and inorganic adhesive or composite material taking the adhesive as a matrix and comprises ultrahigh-performance concrete and the like, and the inner layer blank pipe and the outer protective layer can also be composite materials taking the adhesive as the matrix.

In order to achieve the purpose, the invention adopts the following technical scheme: a fiber reinforced multi-performance composite pipe comprises an inner layer blank pipe, a reinforcing net and an outer protective layer, wherein a steel wire net is contained in an adhesive between the inner layer blank pipe and the outer protective layer, and the inner layer blank pipe is a short fiber reinforced polyethylene pipe; the outer protective layer is a short fiber reinforced polyethylene pipe. The outer wall of the inner layer embryonic tube is wound with a steel wire mesh, and the outer wall of the steel wire mesh is wrapped with an outer protective layer; the steel wire mesh forms a mesh framework; as the reinforced short fiber is added between the inner layer blank pipe and the outer protective layer, the compressive strength of the HDPE water pipe is increased.

Preferably, at least one of the inner layer blank pipe, the outer protective layer and the adhesive contains reinforced short fibers, the reinforced short fibers can be natural fibers, artificial fibers and synthetic fibers, and the [ natural fibers ] refer to fibers growing or forming in nature and comprise plant fibers (natural cellulose fibers), animal fibers (natural protein fibers) and mineral fibers. The artificial fiber is produced by using natural polymer, cellulose or protein, as material, and through a series of chemical treatment and machining, it may be used in spinning, like cotton, wool and silk. Such as rayon, and the like. Synthetic fibers the chemical composition of synthetic fibers is completely different from natural fibers, and they are fibers made from organic substances extracted from substances that do not contain cellulose or protein, such as petroleum, coal, natural gas, limestone, or agricultural byproducts, by chemical synthesis and mechanical processing. Such as terylene, chinlon, acrylon, polypropylene, polyvinyl chloride, etc. .

Preferably, at least one of the inner layer blank pipe and the outer protective layer comprises a reinforcing mesh which can be a metal mesh or a non-metal mesh.

Preferably, a high-performance coating is additionally arranged in the composite tube, and comprises a temperature control coating, an organic silicon zinc oxide coating, a potassium silicate zirconium oxide coating and an aluminum oxide coating; ceramic coating, 1, wear-resistant coating, including anti-stick wear, surface fatigue wear coating and erosion-resistant coating. In some cases, the coating is low temperature (<538 ℃) abrasion resistant and high temperature (538-843 ℃) abrasion resistant. 2. Heat resistant oxidation resistant coatings including coatings applied in high temperature processes (where there is an oxidizing atmosphere, corrosive gases, erosion above 843 ℃ and thermal barriers) and molten metal processes (where there is molten zinc, molten aluminum, molten iron and steel, molten copper). 3. Atmospheric and immersion corrosion resistant coatings

Atmospheric corrosion includes corrosion caused by industrial atmosphere, salt atmosphere, field atmosphere, etc., and immersion corrosion includes corrosion caused by drinking fresh water, non-drinking fresh water, hot fresh water, salt water, chemicals, food processing, etc. 4. Electrically conductive and resistive coatings for electrical conduction, resistance and shielding. 5. Size-restoring coatings for ferrous (machinable and grindable carbon and corrosion-resistant) and non-ferrous (nickel, cobalt, copper, aluminum, titanium and their alloys) articles. 6. Chemical resistant coatings, and the like.

Preferably, the composite tube contains hard particles.

Optimally, the composite pipe contains whiskers.

Preferably, the composite tube contains heat-storage temperature-regulating fibers

Preferably, the composite tube inner layer blank tube contains carbon nano fibers.

Advantageous effects

The invention relates to a fiber-reinforced multi-performance composite pipe, which comprises an inner layer blank pipe, a reinforcing net and an outer protective layer, wherein a steel wire mesh is contained in an adhesive between the inner layer blank pipe and the outer protective layer, and the inner layer blank pipe is a short fiber reinforced polyethylene pipe; the outer protective layer is a short fiber reinforced polyethylene pipe. The outer wall of the inner layer embryonic tube is wound with a steel wire mesh, and the outer wall of the steel wire mesh is wrapped with an outer protective layer; the steel wire mesh forms a mesh framework; as the reinforcing short fibers are added between the inner layer blank pipe and the outer protective layer, the compressive strength of the HDPE water pipe is increased, so that the HDPE water pipe is not easy to break and has good impact resistance.

Preferably, at least one of the inner layer blank pipe, the outer protective layer and the adhesive contains reinforced short fibers, and the reinforced short fibers are added according to the purpose and the characteristics of the pipeline, so that the cost performance is optimized.

Preferably, at least one of the inner layer blank pipe and the outer protective layer comprises a reinforcing mesh so as to further increase the strength of the pipe.

Preferably, the composite pipe is internally and externally provided with a high-performance coating so as to further increase the performance of the pipe.

Preferably, the composite pipe contains hard particles to further increase the strength of the pipe.

Preferably, the composite pipe contains whiskers to further increase the strength of the pipe.

Optimally, the composite pipe contains heat storage and temperature adjustment fibers, so that the temperature constancy of the pipe wall is kept, on one hand, the connection of the pipes is more stable, on the other hand, the liquid quality and the liquid tension stability of liquid in the pipe can be protected, and further, the liquid circulation in the pipe is stronger, see Daqing Petroleum institute, and the influence of the pipe wall temperature and the crude oil temperature of an oil pipeline system on the wax deposition rule.

Optimally, the carbon-containing nano fibers of the blank pipe on the inner layer of the composite pipe can greatly improve the lubricating property of the pipe wall and the liquid permeability in the pipe while enhancing the strength of the pipe wall.

In conclusion, the fiber-reinforced multi-performance composite pipe provided by the invention has the advantages that the pressure-bearing capacity of the composite pipe is greatly enhanced due to the addition of the reinforced short fibers, the performance is stable, slippage is not easy to occur, the compressive strength is high, the corrosion resistance and the flexibility are good, the waterpower is good, and the fiber-reinforced multi-performance composite pipe can be widely applied to the field of conveying various fluids.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. inner layer blank tube, 2 adhesive, 3 reinforcing net, 4 adhesive, 5 outer protective layer

Detailed Description

As shown in fig. 1, the high-strength steel wire mesh composite pipe of ultra-high molecular weight polyethylene of the invention comprises an inner layer blank pipe 1, a reinforcing mesh 3 and an outer protective layer 5. The outer wall of the inner layer embryonic tube 1 is wound with a steel wire mesh 3, the outer wall of the steel wire mesh 3 is wrapped with an outer protection layer 5, and the reinforced short fibers are contained in the inner layer embryonic tube and the outer protection layer.