CN212986316U

CN212986316U - Polyethylene steel pipe with good corrosion prevention effect

Info

Publication number: CN212986316U
Application number: CN202021740776.4U
Authority: CN
Inventors: 李玉龙; 崔仲军
Original assignee: Zhangjiakou Longyuan Environmental Protection Pipe Manufacturing Co ltd
Current assignee: Zhangjiakou Longyuan Environmental Protection Pipe Manufacturing Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-04-16
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses a polyethylene steel pipe that corrosion protection effect is good, including interior body, the inner wall spraying of interior body has interior anticorrosive coating, the fixed surface of interior body is connected with the heat preservation, the fixed surface of heat preservation is connected with outer body, the surface spraying of outer body has the external coating, the heat preservation includes first insulating layer, the fixed surface of first insulating layer is connected with the second insulating layer, the external coating includes anticorrosive wearing layer, anticorrosive wearing layer's fixed surface is connected with the adhesion layer, the fixed surface of adhesion layer is connected with outer anticorrosive coating. The utility model discloses possess the anticorrosive advantage of heat preservation, it is relatively poor to have solved current polyethylene steel pipe at the in-process heat preservation effect of transportation oil, leads to the oil temperature to reduce viscosity reinforcing easily, causes the wearing and tearing to the polyethylene steel pipe inner wall, influences the corrosion resisting property of polyethylene pipeline, has reduced polyethylene steel pipe life's problem.

Description

Polyethylene steel pipe with good corrosion prevention effect

Technical Field

The utility model relates to a polyethylene steel pipe technical field specifically is a polyethylene steel pipe that anticorrosive effect is good.

Background

The polyethylene steel pipe is a new type of steel-plastic composite pipe, which is composed of a steel pipe substrate, an epoxy resin inner coating and a polyethylene outer coating, has excellent mechanical properties, corrosion resistance and aging resistance, is widely applied to various industries such as water conservancy, electric power, chemical industry, petroleum and the like, is applied to urban water supply and drainage pipe networks and pipelines for long-distance conveying of tap water, sewage, reclaimed water and seawater with various water qualities, and can also be used as conveying pipelines for oil, gas and oil-gas mixed media, and the polyethylene steel pipe has low comprehensive cost, and is an excellent product which is in line with green, environmental protection, low carbon and energy conservation.

The existing polyethylene steel pipe has poor heat insulation effect in the process of petroleum transportation, the temperature of petroleum is easily reduced, the viscosity is increased, the inner wall of the polyethylene steel pipe is abraded, the corrosion resistance of the polyethylene pipe is affected, and the service life of the polyethylene steel pipe is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polyethylene steel pipe that anticorrosion effect is good possesses the anticorrosion's that keeps warm advantage, and it is relatively poor to have solved current polyethylene steel pipe at the in-process heat preservation effect of transporting oil, leads to the oil temperature to reduce viscosity reinforcing easily, causes the wearing and tearing to polyethylene steel pipe inner wall, influences the corrosion resisting property of polyethylene pipeline, has reduced polyethylene steel pipe life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a polyethylene steel pipe that anticorrosion effect is good, includes interior body, the inner wall spraying of interior body has interior anticorrosive coating, the fixed surface of interior body is connected with the heat preservation, the fixed surface of heat preservation is connected with outer body, the surface spraying of outer body has the external coating, the heat preservation includes first insulating layer, the fixed surface of first insulating layer is connected with the second insulating layer, the external coating includes anticorrosive wearing layer, anticorrosive wearing layer's fixed surface is connected with the adhesion layer, the fixed surface of adhesion layer is connected with outer anticorrosive coating.

Preferably, the inner anti-corrosion layer is made of thermosetting epoxy resin, the inner pipe body and the outer pipe body are made of steel metal, and the thicknesses of the inner pipe body and the outer pipe body are the same.

Preferably, the first heat insulation layer is sprayed on the surface of the inner pipe body, and the anti-corrosion wear-resistant layer is sprayed on the surface of the outer pipe body.

Preferably, the first heat insulation layer is made of ceramic micro-bubble heat insulation paint, and the second heat insulation layer is made of polyester ammonia.

Preferably, the anticorrosion wear-resistant layer is made of epoxy powder, the adhesion layer is made of an adhesive, and the outer anticorrosion layer is made of high-density polyethylene.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an interior body, heat preservation, first insulating layer, second insulating layer, external coating, anticorrosive wearing layer, adhesion layer, outer anticorrosive coating, outer body and interior anticorrosive coating's cooperation is used, and it is relatively poor to have solved current polyethylene steel pipe at the in-process heat preservation effect of transportation oil, leads to the oil temperature to reduce viscosity reinforcing easily, causes the wearing and tearing to polyethylene steel pipe inner wall, influences the corrosion resisting property of polyethylene pipeline, has reduced polyethylene steel pipe life's problem.

2. The utility model discloses a set up interior anticorrosive coating, can be convenient for prevent that the inner wall of interior body from receiving corrosion damage, cooperation through first insulating layer and second insulating layer is used, can be convenient for keep warm isolated heat and give off to interior body, through setting up outer body, can be convenient for fix the heat preservation, through setting up anticorrosive wearing layer, can be convenient for increase outer wear-resisting and corrosion resisting property of body, through setting up the adhesion layer, can be convenient for fix outer anticorrosive coating, through setting up outer anticorrosive coating, can be convenient for prevent that outer body from receiving corrosion damage.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the heat-insulating layer of the present invention;

FIG. 3 is a schematic sectional view of the outer coating of the present invention.

In the figure: the pipe comprises an inner pipe body 1, an insulating layer 2, a first heat insulation layer 21, a second heat insulation layer 22, an outer coating 3, an anticorrosion wear-resistant layer 31, an adhesion layer 32, an outer anticorrosion layer 33, an outer pipe body 4 and an inner anticorrosion layer 5.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides an interior body 1, heat preservation 2, first insulating layer 21, second insulating layer 22, external coating 3, anticorrosive wearing layer 31, adhesion layer 32, outer anticorrosive coating 33, outer body 4 and parts such as interior anticorrosive coating 5 are general standard or the part that technical staff in the field knows, and its structure and principle all can learn through the technical manual or learn through conventional experimental method for technical staff in the field.

Referring to fig. 1-3, a polyethylene steel pipe with good corrosion protection effect comprises an inner pipe body 1, an inner corrosion protection layer 5 is coated on the inner wall of the inner pipe body 1, the inner corrosion protection layer 5 is arranged to prevent the inner wall of the inner pipe body 1 from being corroded and damaged, the inner corrosion protection layer 5 is made of thermosetting epoxy resin, a heat preservation layer 2 is fixedly connected to the surface of the inner pipe body 1, an outer pipe body 4 is fixedly connected to the surface of the heat preservation layer 2, the heat preservation layer 2 can be conveniently fixed by arranging the outer pipe body 4, an outer coating 3 is coated on the surface of the outer pipe body 4, the heat preservation layer 2 comprises a first heat insulation layer 21, the first heat insulation layer 21 is made of ceramic micro-bubble heat insulation heat preservation paint, a second heat insulation layer 22 is fixedly connected to the surface of the first heat insulation layer 21, and heat dissipation can be conveniently insulated by the cooperation of the first heat insulation layer, the material of the second thermal insulation layer 22 is polyurethane, the outer coating 3 comprises an anticorrosion wear-resistant layer 31, through setting the anticorrosion wear-resistant layer 31, the wear resistance and corrosion resistance of the outer pipe body 4 can be conveniently increased, the material of the anticorrosion wear-resistant layer 31 is epoxy powder, the surface fixing of the anticorrosion wear-resistant layer 31 is connected with an adhesion layer 32, through setting the adhesion layer 32, the outer anticorrosion layer 33 can be conveniently fixed, the material of the adhesion layer 32 is an adhesive, the surface fixing of the adhesion layer 32 is connected with the outer anticorrosion layer 33, through setting the outer anticorrosion layer 33, the outer pipe body 4 can be conveniently prevented from being corroded and damaged, the material of the outer anticorrosion layer 33 is high-density polyethylene, the materials of the inner pipe body 1 and the outer pipe body 4 are both steel metal, the thicknesses of the inner pipe body 1 and the outer pipe body 4 are the same, the first thermal insulation layer 21 is sprayed on the surface of the inner pipe body 1, the anticorrosion wear-resistant layer 31 is sprayed on, The heat preservation layer 2, the first heat insulation layer 21, the second heat insulation layer 22, the outer coating 3, the anticorrosion wear-resistant layer 31, the adhesion layer 32, the outer anticorrosion layer 33, the outer pipe body 4 and the inner anticorrosion layer 5 are used in a matched mode, and the problems that the heat preservation effect of an existing polyethylene steel pipe in the process of petroleum transportation is poor, the temperature of petroleum is easily reduced, the viscosity is increased, the inner wall of the polyethylene steel pipe is abraded, the anticorrosion performance of the polyethylene pipe is affected, and the service life of the polyethylene steel pipe is shortened are solved.

During the use, through setting up interior anticorrosive coating 5, can be convenient for prevent that the inner wall of interior body 1 from receiving corrosion damage, cooperation through first insulating layer 21 and second insulating layer 22 is used, can be convenient for keep warm isolated heat and give off to interior body 1, through setting up outer body 4, can be convenient for fix heat preservation 2, through setting up anticorrosive wearing layer 31, can be convenient for increase outer body 4's wear-resisting and corrosion resisting property, through setting up adhesion layer 32, can be convenient for fix outer anticorrosive coating 33, through setting up outer anticorrosive coating 33, can be convenient for prevent that outer body 4 from receiving corrosion damage.

In summary, the following steps: this polyethylene steel pipe that anticorrosion effect is good, through interior body 1, heat preservation 2, first insulating layer 21, second insulating layer 22, external coating 3, anticorrosive wearing layer 31, adhesion layer 32, outer anticorrosive coating 33, the cooperation of outer body 4 and interior anticorrosive coating 5 is used, it is relatively poor to have solved current polyethylene steel pipe at the in-process heat preservation effect of transporting oil, lead to the oil temperature to reduce viscosity reinforcing easily, cause the wearing and tearing to polyethylene steel pipe inner wall, influence the corrosion protection of polyethylene pipeline, the problem of polyethylene steel pipe life has been reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a polyethylene steel pipe that anticorrosive effect is good, includes interior body (1), its characterized in that: the inner wall spraying of interior body (1) has interior anticorrosive coating (5), the fixed surface of interior body (1) is connected with heat preservation (2), the fixed surface of heat preservation (2) is connected with outer body (4), the surface spraying of outer body (4) has outer coating (3), heat preservation (2) are including first insulating layer (21), the fixed surface of first insulating layer (21) is connected with second insulating layer (22), outer coating (3) are including anticorrosive wearing layer (31), the fixed surface of anticorrosive wearing layer (31) is connected with adhesion layer (32), the fixed surface of adhesion layer (32) is connected with outer anticorrosive coating (33).

2. The polyethylene steel pipe with good corrosion prevention effect according to claim 1, characterized in that: the inner anti-corrosion layer (5) is made of thermosetting epoxy resin, the inner pipe body (1) and the outer pipe body (4) are made of steel metal, and the thicknesses of the inner pipe body (1) and the outer pipe body (4) are the same.

3. The polyethylene steel pipe with good corrosion prevention effect according to claim 1, characterized in that: the first heat insulation layer (21) is sprayed on the surface of the inner pipe body (1), and the anticorrosion wear-resistant layer (31) is sprayed on the surface of the outer pipe body (4).

4. The polyethylene steel pipe with good corrosion prevention effect according to claim 1, characterized in that: the first heat insulation layer (21) is made of ceramic micro-bubble heat insulation paint, and the second heat insulation layer (22) is made of polyester ammonia.

5. The polyethylene steel pipe with good corrosion prevention effect according to claim 1, characterized in that: the material of anticorrosive wear-resistant layer (31) is epoxy powder, the material of adhesion layer (32) is the adhesive, the material of outer anticorrosive layer (33) is high density polyethylene.