CN208348693U

CN208348693U - A kind of steel plastic compount feed pipe

Info

Publication number: CN208348693U
Application number: CN201820855308.8U
Authority: CN
Inventors: 谭连平
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-04
Filing date: 2018-06-04
Publication date: 2019-01-08
Anticipated expiration: 2028-06-04

Abstract

The utility model discloses a kind of steel plastic compount feed pipes, it includes inner tube, steel pipe, outer tube and erosion resistant coating, the steel pipe and inner tube, outer tube are integrally formed, the erosion resistant coating is coated on the outer surface of outer tube by extrusion molding, antioxidant and ultraviolet absorbing agent are added in the erosion resistant coating, the surface of the steel pipe is provided with passivation film.A kind of steel plastic compount feed pipe of the utility model, intensity is high, and corrosion resistance and good can be widely used.

Description

A kind of steel plastic compount feed pipe

Technical field

The utility model relates to feedwater piping field more particularly to a kind of steel plastic compount feed pipes.

Background technique

Feed pipe divides metal tube, multiple tube and plastic tube.Metal tube is broadly divided into copper tube and stainless steel waterpipe, multiple tube Typical Representative has aluminium-plastic pipe, but due to its problem of expanding with heat and contract with cold, is gradually eliminated.The most commonly used is PPR water for plastic tube Pipe, safety, nontoxic, easy for installation, many reasons such as cheap become the most common water pipe of house ornamentation.

The features such as PE (polyethylene) material is high, corrosion-resistant, nontoxic due to its intensity is widely used in feed pipe manufacture neck Domain.Because it will not get rusty, therefore, it is substituting the ideal tubing of common iron feed pipe.PE feed pipe executes product national standard: GB/T 13663-2000 " water supply polyethylene (PE) tubing ".

But the problems such as due to environment, more and more people, begin to use metal tube or ppr liner metal tube be used as to Waterpipe.The comb distribution for being typically due to water supplying pipe is intricate, in underground is all distributed in first-class various environment, therefore, Intensity and corrosion resistance to feed pipe are proposed very high challenge.

Utility model content

The purpose of this utility model is that a kind of steel plastic compount feed pipe is provided in view of the deficiencies of the prior art, intensity Height, corrosion resistance and good can be widely used.

In order to achieve the above objectives, the utility model is achieved through the following technical solutions.

A kind of steel plastic compount feed pipe, it includes inner tube, steel pipe, outer tube and erosion resistant coating, the steel pipe and inner tube, outer tube one Body formed, the erosion resistant coating is coated on the outer surface of outer tube by extrusion molding, is added with antioxidant and ultraviolet light in the erosion resistant coating The surface of absorbent, the steel pipe is provided with passivation film.

Further, the steel pipe is hot galvanized steel pipe.

Further, through-hole is offered on the steel pipe, the through-hole is uniformly distributed setting along the axial direction of steel pipe, described logical Hole is uniformly distributed setting on steel pipe cross section.

Further, fluorine silicon resin layer is coated on the passivation film of the steel pipe outer layer, it is embedding in the fluorine silicon resin layer Fill quartz sand particle.

Further, the outer layer of the erosion resistant coating is coated with fluorine silicon resin layer.

Further, the thickness of the fluorine silicon resin layer is at 100-200 microns.

Further, the mesh number of the quartz sand particle is 200-300 mesh.

Further, said inner tube, outer tube are HDPE material extrusion moulding.

Further, the erosion resistant coating is polyethylene material or HDPE material extrusion moulding.

Further, the erosion resistant coating includes epoxy resin layer and anticorrosion basic unit, and the epoxy resin layer is coated in anti-corrosion In base, the external sheath of the epoxy resin layer has insulating layer.

A kind of steel plastic compount feed pipe of the utility model, intensity is high, and corrosion resistance and good can be widely used.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the cross section structure schematic diagram of the first embodiment of the utility model；

Fig. 3 is the cross section structure schematic diagram of the second embodiment of the utility model；

In figure: 1, inner tube；2, steel pipe；3, outer tube；4, erosion resistant coating；21, passivation film；22, through-hole；23, fluorine silicon resin layer； 41, epoxy resin layer；42, anticorrosion basic unit；5, insulating layer.

Specific embodiment

The utility model is described further below with reference to embodiment, but is not limited to the content on specification.

First embodiment, as shown in Figs. 1-2: a kind of steel plastic compount feed pipe, it includes inner tube 1, steel pipe 2, outer tube 3 and prevents Rotten layer 4, steel pipe 2 and inner tube 1, outer tube 3 are integrally formed, and erosion resistant coating 4 is coated on the outer surface of outer tube 3 by extrusion molding.

Steel pipe 2 is hot galvanized steel pipe, and surface is handled by inorganic passivating solution, and pipe surface is formed with passivating film inside and outside it Layer 21, the corrosion resistance of steel pipe can be enhanced in the formation of passivation film 21, can also be used as interfacial contact agent, increases steel pipe 2 With the bonding force between inner tube 1, outer tube 3.Through-hole 22 is offered on steel pipe 2, through-hole 22 is uniformly distributed along the axial direction of steel pipe 2 and sets It sets, through-hole 22 is uniformly distributed setting on 2 cross section of steel pipe, and it is preferably 3-8 that number, which is arranged, in through-hole 22 on the cross section of steel pipe 2 It is a.22 quantity of through-hole setting on same cross section is excessive, and the strength character that will cause steel pipe 2 is too poor, and compressive resistance is poor, does not have The quantity of the effect of reinforced pipe intensity, through-hole 22 is very little, in processing, 3 difficult forming of inner tube 1 and outer tube, and inner tube 1 and outer tube There may be a large amount of gap between 3, the intensity difference of pipeline, steel pipe 2 is easily corroded.The setting of through-hole 22 can be to process When pipeline, thermoplastic materials is uniformly distributed formed inner tube 1 and outer tube 3 in 2 interior and exterior of steel pipe by through-hole.Due to setting for through-hole 22 It sets, therefore the strength character decline of steel pipe 2 is coated with fluorine silicon resin layer 23, fluorine silicon on the passivation film 21 of 2 outer layer of steel pipe Quartz sand particle is embedded in resin layer 23, this set not only can be enhanced the adhesive property between outer tube 3 and steel pipe 2, but also can be with The rigidity and compressive resistance of steel pipe 2 are improved, supplement through-hole 22 gives 2 bring loss of strength of steel pipe.As the folder in a kind of pipeline Layer, for the thickness of fluorine silicon resin layer 23 at 100-200 microns, the mesh number of quartz sand is 200-300 mesh.

Since quartz sand is also equipped with wear-resisting property, fluorine silicon resin layer 23 can also be coated in the outer layer of erosion resistant coating 4, play and mention The wear-resisting property in riser road, meanwhile, prevent erosion resistant coating from losing function by damage is scratched.

Inner tube 1 and outer tube 3 are all made of HDPE material, and high density polyethylene (HDPE) (HDPE) is white powder or granular product. Nontoxic, tasteless, crystallinity is 80%~90%, and softening point is 125~135 DEG C, using temperature up to 100 DEG C；Hardness stretches by force Degree and creep properties are better than low density polyethylene (LDPE)；Wearability, electrical insulating property, toughness and cold resistance are preferable；Chemical stability is good, in room Under the conditions of temperature, any organic solvent, the corrosion of acid and alkali resistance and various salts are not dissolved in；Infiltration of the film to vapor and air Property is small, and water imbibition is low；Loss of properties on aging, environmental stress crack resistance are not so good as low density polyethylene (LDPE), especially thermal oxidation Its performance can be made to decline, so must wherein add people's antioxidant and ultraviolet absorbing agent etc. to improve the deficiency of this respect.So Erosion resistant coating 4 will be arranged in the outer layer of outer tube 3.The matrix of the anticorrosion basic unit 42 of erosion resistant coating 4 is polyethylene or high density polyethylene (HDPE), in steel After pipe 2 and inner tube 1, outer tube 3 are integrally formed, be coated in the outside of outer tube 3 by extrusion molding, in erosion resistant coating 4 added with antioxidant and Ultraviolet absorbing agent.It is long-term exposed in outdoor oxidation, aging speed to reduce feed pipe.

Second embodiment, as shown in figure 3, in order to enhance its Corrosion Protection, erosion resistant coating 4 includes epoxy resin layer 41 and prevents Rotten base 42, epoxy resin layer 41 is coated in anticorrosion basic unit 42, to reinforce the Corrosion Protection of pipeline.

For the feed pipe that winter area uses, the outermost layer of erosion resistant coating 4 is often also provided with insulating layer 5, reaches The effect of heat preservation.

Obviously, the above embodiment of the utility model is merely examples for clearly illustrating the present invention, And it is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, it is stated upper It can also be made other variations or changes in different ways on the basis of bright.Here all embodiments can not be given thoroughly It lifts.It is all to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model Protection scope column.

Claims

1. a kind of steel plastic compount feed pipe, it is characterised in that: it includes inner tube (1), steel pipe (2), outer tube (3) and erosion resistant coating (4), The steel pipe (2) and inner tube (1), outer tube (3) are integrally formed, and the erosion resistant coating (4) is coated on the appearance of outer tube (3) by extrusion molding Face, the erosion resistant coating (4) is interior to be added with antioxidant and ultraviolet absorbing agent, and the surface of the steel pipe (2) is provided with passivation film (21)。

2. a kind of steel plastic compount feed pipe according to claim 1, it is characterised in that: the steel pipe (2) is hot-galvanized steel Pipe.

3. a kind of steel plastic compount feed pipe according to claim 1, it is characterised in that: offered on the steel pipe (2) logical Hole (22), the through-hole (22) are uniformly distributed setting along the axial direction of steel pipe (2), and the through-hole (22) is on steel pipe (2) cross section It is uniformly distributed setting.

4. a kind of steel plastic compount feed pipe according to claim 1, it is characterised in that: the passivation of steel pipe (2) outer layer Fluorine silicon resin layer (23) are coated in film layer (21), quartz sand particle is embedded in the fluorine silicon resin layer (23).

5. a kind of steel plastic compount feed pipe according to claim 1, it is characterised in that: the outer layer of the erosion resistant coating (4) applies It is covered with fluorine silicon resin layer (23).

6. a kind of steel plastic compount feed pipe according to claim 4 or 5, it is characterised in that: the fluorine silicon resin layer (23) Thickness at 100-200 microns.

7. a kind of steel plastic compount feed pipe according to claim 4, it is characterised in that: the mesh number of the quartz sand particle is 200-300 mesh.

8. a kind of steel plastic compount feed pipe according to claim 1, it is characterised in that: said inner tube (1), outer tube (3) are HDPE material extrusion moulding.

9. a kind of steel plastic compount feed pipe according to claim 1, it is characterised in that: the erosion resistant coating (4) is polyethylene Material or HDPE material extrusion moulding.

10. a kind of steel plastic compount feed pipe according to claim 1, it is characterised in that: the erosion resistant coating (4) includes epoxy Resin layer (41) and anticorrosion basic unit (42), the epoxy resin layer (41) are coated on anticorrosion basic unit (42), the epoxy resin The external sheath of layer (41) has insulating layer (5).