CN213629274U

CN213629274U - Water supply plastic-coated composite steel pipe with good weather resistance

Info

Publication number: CN213629274U
Application number: CN202022579697.6U
Authority: CN
Inventors: 周浩
Original assignee: Chongqing Ming Ho Pipe Industry Co ltd
Current assignee: Chongqing Ming Ho Pipe Industry Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-07-06
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a water supply plastic-coated composite steel pipe with good weather resistance, which comprises a steel pipe body, wherein the inner surface of the steel pipe body is provided with a pressure-resistant layer, the inner surface of the pressure-resistant layer is provided with a polyethylene coating, and the outer surface of the pressure-resistant layer is provided with a composite base layer; the water supply plastic-coated composite steel pipe with good weather resistance is provided with the first polymeric fiber layer, the second polymeric fiber layer and the outer zinc coating layer, so that the response effect of expansion with heat and contraction with cold of a steel body can be achieved, the crystal cleaning degree and the structural toughness of the pipe structure are improved, and the stable weather resistance and the environmental adaptability of the steel pipe body are improved; through setting up compressive layer, polyethylene coating, outer galvanizing coat, hydrophobic granule and hydrophobic layer, can reach good acidproof, alkali-proof, hydrophobic, shock resistance and anticorrosion effect to the steel pipe body to this effectual ageing resistance that improves steel pipe body structure has realized the inside and outside quality of steel pipe body product, has more prolonged the life of steel pipe body.

Description

Water supply plastic-coated composite steel pipe with good weather resistance

Technical Field

The utility model relates to a water supply pipe technical field specifically is a compound steel pipe of feedwater plastic-coated that weatherability is good.

Background

In recent years, water supply pipes play an increasingly important role in the construction of urban water supply and drainage pipe networks. Water supply pipes are important parts for tank users to transport and distribute water in water supply works, and common water supply pipe materials include cast iron pipes, steel pipes and prestressed concrete pipes. Compared with the traditional cast iron pipeline, the plastic-coated composite steel pipe has light volume weight and long service life, generally, the service life of the plastic-coated composite steel pipe is more than 50 years, and the service life of the plastic-coated composite steel pipe is basically equal to that of a building. In some special fields, the application amount of the water supply plastic-coated composite steel pipe is very large, and the application proportion of industries such as solar water conveying pipelines, municipal sewage disposal, ground source heat pump conveying pipelines, communication, electric power and the like is greatly increased except for municipal and building water supply and drainage pipelines.

The prior art has the following defects or problems:

1. the existing water supply pipeline is replaced seasonally in the environment, the cold and hot reaction easily causes deformation and damage of a pipeline structure, and the market demand can not be met due to the processing link of the existing water supply pipeline to expansion with heat and contraction with cold, so that the structural strength of the existing pipe is insufficient, and the weather resistance is not stable.

2. In addition, most of the existing pipes are exposed outdoors, when the outer surfaces of the pipes encounter severe acid-base rainwater, the corrosion of the outer surfaces of the pipes is very easy to cause, the rainwater is easy to stay on the outer walls of the pipes for a long time, the service life of the pipes is reduced in an invisible manner, and meanwhile, the inner walls of the pipes are easy to corrode and impact when being contacted with a water source for a long time, so that the impact resistance and the corrosion resistance of the existing pipes are also needed to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide the compound steel pipe of feedwater plastic-coated that a weatherability is good, solve the problem of mentioning in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a compound steel pipe of feedwater plastic-coated that weatherability is good, includes the steel pipe body, the internal surface of steel pipe body is provided with the compressive layer, the internal surface of compressive layer is provided with the polyethylene coating, the surface of compressive layer is provided with compound basic unit, the horizontal inside of compound basic unit is provided with first polymeric fiber layer, one side of first polymeric fiber layer is provided with second polymeric fiber layer, the surface of compound basic unit is provided with outer galvanizing coat, outer galvanizing coat's anchor ring is provided with hydrophobic granule, hydrophobic granule's surface is provided with the hydrophobic layer, and the hydrophobic layer is close to outer galvanizing coat's surface.

As the utility model discloses a preferred technical scheme, the anti-pressure layer is formed for the talcum powder high pressure pressing, the polyethylene coating is scribbled and is attached to the interior table wall on anti-pressure layer, what the polyethylene coating was epoxy thick liquid type coating.

As the utility model discloses a preferred technical scheme, first polymeric fiber layer is carbon fiber macromolecular material, second polymeric fiber layer is boron fiber macromolecular material, first polymeric fiber layer and second polymeric fiber layer encircle the die-casting and constitute compound basic unit.

As the preferable technical proposal of the utility model, the outer galvanizing coat is a polyester modified powder coating, and the thickness of the outer galvanizing coat is 0.05-0.09 mm.

As the preferred technical scheme of the utility model, the shape of hydrophobic granule is oval graininess, and hydrophobic granule quantity is a plurality of groups, hydrophobic granule equidistance distributes at the surface of outer galvanizing coat.

As the utility model discloses a preferred technical scheme, the hydrophobic layer is propyl ester coating, and the thickness of hydrophobic layer is 0.01-0.05 mm.

Compared with the prior art, the utility model provides a compound steel pipe of feedwater plastic-coated that weatherability is good possesses following beneficial effect:

1. this compound steel pipe of water supply plastic-coated with good weatherability, through setting up first polymeric fiber layer, second polymeric fiber layer and outer galvanizing coat, when using the steel pipe body to meet cold and hot weather, expend with heat and contract with cold phenomenon to tubular product, under the annular cooperation through second polymeric fiber layer and outer galvanizing coat, glass fiber and boron fiber can all improve the clean crystal degree and the structural toughness of tubular product structure, can avoid the steel pipe body to receive environmental impact to take place the structural deformation and cause structural damage and fracture when moulding, and influence the life of tubular product, with this life that can realize the stable weatherability of steel pipe body and extension steel pipe body, the application range and the environmental adaptability of steel pipe body have been extended simultaneously.

2. The water supply plastic-coated composite steel pipe with good weather resistance is characterized in that the pressure-resistant layer, the polyethylene coating, the outer zinc coating, the hydrophobic particles and the hydrophobic layer are arranged, under the matching of the pressure-resistant layer and the polyethylene coating, the pressure-resistant layer can provide smoothness of the inner wall of the steel pipe body and reduce the fluid resistance of the inner wall of the steel pipe body, so that the impact resistance of the inner wall of the steel pipe body can be increased, the polyethylene coating has the characteristic of strong corrosion resistance, the inner wall can be prevented from scaling and rusting, the problem that the practical service life of the steel pipe body is shortened due to the humidity of the inner wall environment of the steel pipe body or the corrosion of microorganisms is solved, in addition, the outer zinc coating has good acid-resistant and alkali-resistant protection effects, so that the corrosion problem of the outer surface wall of the steel pipe body caused by external acid-base rainwater is solved, the process of metal oxidation is, can prevent that external rainwater from being detained in the surface of steel pipe body for a long time and cause the production of its surface iron rust to realize hydrophobic effect, with the ageing resistance of the surface of this three's cooperation more effectual improved the steel pipe body, thereby realized the inside and outside quality of steel pipe body product, more prolonged the life of steel pipe body.

Drawings

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

FIG. 2 is a schematic view of the composite base layer structure of the present invention;

FIG. 3 is a schematic view of the structure of the outer zinc coating layer of the present invention;

in the figure: 1. a steel pipe body; 2. a pressure resistant layer; 3. a polyethylene coating; 4. a composite base layer; 5. a first polymeric fiber layer; 6. a second polymeric fiber layer; 7. an outer zinc coating; 8. hydrophobic particles; 9. a hydrophobic layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in this embodiment: the utility model provides a compound steel pipe of feedwater plastic-coated that weatherability is good, including steel pipe body 1, the internal surface of steel pipe body 1 is provided with resistance to compression layer 2, the internal surface of resistance to compression layer 2 is provided with polyethylene coating 3, the surface of resistance to compression layer 2 is provided with compound basic unit 4, the horizontal inside of compound basic unit 4 is provided with first polymeric fiber layer 5, one side of first polymeric fiber layer 5 is provided with second polymeric fiber layer 6, the surface of compound basic unit 4 is provided with outer galvanizing coat 7, outer galvanizing coat 7's anchor ring is provided with hydrophobic granule 8, hydrophobic granule 8's surface is provided with hydrophobic layer 9, and hydrophobic layer 9 is close to outer galvanizing coat 7's surface.

In the embodiment, the compression-resistant layer 2 is formed by compressing talcum powder at high pressure, the polyethylene coating 3 is coated on the inner surface wall of the compression-resistant layer 2, the polyethylene coating 3 is epoxy thick paste type coating, the compression-resistant layer 2 can provide smoothness for the inner wall of the steel pipe body 1, and the fluid resistance of the inner wall of the steel pipe body 1 is reduced, so that the impact resistance of the inner wall is increased, and the polyethylene coating 3 has the characteristic of strong corrosion resistance and can prevent the inner wall 11 from scaling and rusting; the first polymeric fiber layer 5 is made of a carbon fiber polymer material, the second polymeric fiber layer 6 is made of a boron fiber polymer material, the first polymeric fiber layer 5 and the second polymeric fiber layer 6 are cast around the composite base layer 4, and the first polymeric fiber layer 5 and the second polymeric fiber layer 6 can improve the crystal cleaning degree and the structural toughness of the pipe structure, so that the steel pipe body 1 is prevented from being damaged and cracked due to structural plastic deformation caused by environmental influence, and the weather resistance of the steel pipe body 1 is improved; the outer zinc coating 7 is a polyester modified powder coating, the thickness of the outer zinc coating 7 is 0.05-0.09mm, and the outer zinc coating 7 has good acid-resistant and alkali-resistant protection effects and can effectively prevent the oxidation process of the metal pipe; the shape of the hydrophobic particles 8 is elliptical particle shape, the number of the hydrophobic particles 8 is a plurality of groups, the hydrophobic particles 8 are equidistantly distributed on the outer surface of the outer zinc coating 7, and the hydrophobic particles 8 can play a role in preventing water drops from condensing on the outer surface of the steel pipe body 1, so that the dredging function of the water fluid is improved; the hydrophobic layer 9 is a propyl ester coating, the thickness of the hydrophobic layer 9 is 0.01-0.05mm, and the hydrophobic layer 9 can prevent external rainwater from being retained on the outer surface of the steel pipe body 1 for a long time to cause rust on the surface of the steel pipe body 1, so that the water blocking effect of the steel pipe body is achieved.

The utility model discloses a theory of operation and use flow: firstly, when the steel pipe body 1 is used in cold and hot weather, for the phenomena of expansion with heat and contraction with cold of the pipe, under the annular matching of the second polymeric fiber layer 6 and the outer zinc coating layer 7, the glass fiber and the boron fiber can improve the cleanliness and the structural toughness of the pipe structure, and can avoid the structural damage and cracking caused by the structural plastic deformation of the steel pipe body 1 under the influence of the environment and influence the service life of the pipe, so that the stable weather resistance of the steel pipe body 1 can be realized, the service life of the steel pipe body 1 can be prolonged, and the application range and the environmental adaptability of the steel pipe body 1 can be expanded; then, under the matching of the compression resistant layer 2 and the polyethylene coating 3, the compression resistant layer 2 can provide the smoothness of the inner wall of the steel pipe body 1 and reduce the fluid resistance of the inner wall of the steel pipe body 1, thereby increasing the impact resistance of the inner wall of the steel pipe body 1, the polyethylene coating 3 has the characteristic of strong corrosion resistance, and can prevent 11 the inner wall from scaling and rusting, thereby avoiding the problem that the practical service life is shortened due to the moist environment of the inner wall of the steel pipe body 1 or the corrosion of microorganisms, in addition, the outer zinc coating 7 has good acid-resistant and alkali-resistant protection efficacy, thereby avoiding the problem that the outer surface wall of the steel pipe body 1 is corroded by the external acid-base rainwater, thereby preventing the metal oxidation process, and simultaneously, under the matching of the hydrophobic particles 8 and the hydrophobic layer 9, the external rainwater can be prevented from being retained on the outer surface of the steel pipe body 1 for a long time, and realize hydrophobic effect to this three's cooperation has more effectually improved the ageing resistance of the surface of steel pipe body 1, thereby has realized the inside and outside quality of steel pipe body 1 product, has more prolonged the life of steel pipe body 1.

Finally, it should be noted that: although the present invention 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 in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a compound steel pipe of feedwater plastic-coated that weatherability is good which characterized in that: including steel pipe body (1), the internal surface of steel pipe body (1) is provided with compressive layer (2), the internal surface of compressive layer (2) is provided with polyethylene coating (3), the surface of compressive layer (2) is provided with composite basic unit (4), the horizontal inside of composite basic unit (4) is provided with first polymeric fiber layer (5), one side of first polymeric fiber layer (5) is provided with second polymeric fiber layer (6), the surface of composite basic unit (4) is provided with outer galvanizing coat (7), the anchor ring of outer galvanizing coat (7) is provided with hydrophobic granule (8), the surface of hydrophobic granule (8) is provided with hydrophobic layer (9), and hydrophobic layer (9) are close to the surface of outer galvanizing coat (7).

2. The water supply plastic-coated composite steel pipe with good weather resistance as claimed in claim 1, wherein: the pressure-resistant layer (2) is formed by high-pressure pressing of talcum powder, the polyethylene coating (3) is coated on the inner surface wall of the pressure-resistant layer (2), and the polyethylene coating (3) is epoxy thick paste type paint.

3. The water supply plastic-coated composite steel pipe with good weather resistance as claimed in claim 1, wherein: the composite base layer is characterized in that the first polymer fiber layer (5) is made of a carbon fiber polymer material, the second polymer fiber layer (6) is made of a boron fiber polymer material, and the first polymer fiber layer (5) and the second polymer fiber layer (6) are cast in a surrounding mode to form the composite base layer (4).

4. The water supply plastic-coated composite steel pipe with good weather resistance as claimed in claim 1, wherein: the outer galvanizing coat (7) is a polyester modified powder coating, and the thickness of the outer galvanizing coat (7) is 0.05-0.09 mm.

5. The water supply plastic-coated composite steel pipe with good weather resistance as claimed in claim 1, wherein: the shape of the hydrophobic particles (8) is elliptical, the number of the hydrophobic particles (8) is a plurality of groups, and the hydrophobic particles (8) are equidistantly distributed on the outer surface of the outer zinc coating (7).

6. The water supply plastic-coated composite steel pipe with good weather resistance as claimed in claim 1, wherein: the hydrophobic layer (9) is a propyl ester coating, and the thickness of the hydrophobic layer (9) is 0.01-0.05 mm.