CN213871494U

CN213871494U - Anti-corrosion steel pipe

Info

Publication number: CN213871494U
Application number: CN202021614589.1U
Authority: CN
Inventors: 徐晓东
Original assignee: Wuxi Sunan Special Steel Pipe Co ltd
Current assignee: Wuxi Sunan Special Steel Pipe Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-08-03
Anticipated expiration: 2030-08-07

Abstract

The utility model relates to a steel pipe, anticorrosive steel pipe specifically says so. It comprises a tubular body. The anti-corrosion device is characterized in that the body comprises a steel supporting pipe, and a first anti-corrosion layer and a second anti-corrosion layer are sequentially covered on the inner wall of the supporting pipe. The first anticorrosive layer is a polyurethane fiber layer, the second anticorrosive layer is a glass fiber reinforced plastic layer, the polyurethane fiber layer covers the inner wall of the supporting pipe, and the glass fiber reinforced plastic layer covers the polyurethane fiber layer. The steel pipe has good corrosion resistance and long service life.

Description

Anti-corrosion steel pipe

Technical Field

The utility model relates to a steel pipe, be used for preparing the anticorrosive steel pipe of carrying corrosive fluid pipeline specifically says so.

Background

It is well known that most corrosive fluids are transported through pipelines. The pipeline is mostly formed by splicing a section of steel pipe. At present, steel pipes used for splicing pipelines in the industry are all traditional common steel pipes. It is a single layer steel pipe. Traditional steel pipe is made by the individual layer steel, and the corrosion resisting property is relatively poor, and when being used for carrying corrosive fluid, life is shorter.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an anticorrosive steel pipe, the corrosion resisting property of this steel pipe is better, and life is longer.

In order to solve the problems, the following technical scheme is provided:

the utility model discloses an anticorrosive steel pipe includes pipy body. The anti-corrosion device is characterized in that the body comprises a steel supporting pipe, and a first anti-corrosion layer and a second anti-corrosion layer are sequentially covered on the inner wall of the supporting pipe. The first anticorrosive layer is a polyurethane fiber layer, the second anticorrosive layer is a glass fiber reinforced plastic layer, the polyurethane fiber layer covers the inner wall of the supporting pipe, and the glass fiber reinforced plastic layer covers the polyurethane fiber layer.

The pipe body is characterized in that support rings are fixedly connected to two ends of the body concentrically, the outer ring surfaces of the support rings are flush with the corresponding end surfaces of the body, bolt holes are uniformly distributed in the ring surfaces of the support rings along the circumferential direction of the support rings, a limiting shaft is arranged on the outer ring surface of one support ring, the limiting shaft is parallel to the pipe body, and a limiting through hole which is coaxially arranged with the limiting shaft is formed in the other support ring.

The bottom of the body is provided with a sliding groove which is longitudinally arranged along the body, at least two cushion blocks are sequentially arranged in the sliding groove, the cushion blocks are in sliding fit with the sliding groove, the lower parts of the cushion blocks extend out of the opening parts of the sliding groove, and the lower edges of the cushion blocks are positioned below the lower edges of the support rings.

The two sides of the cushion block close to the bottom of the sliding chute are provided with convex edges extending outwards, the side walls of the sliding chute corresponding to the convex edges are provided with yielding openings, and the convex edges are located in the corresponding yielding openings.

By adopting the scheme, the method has the following advantages:

because the utility model discloses an anticorrosive steel pipe's body includes steel stay tube, has covered first anticorrosive coating and second anticorrosive coating on the inner wall of stay tube in proper order, and first anticorrosive coating is the polyurethane fiber layer, the second anticorrosive coating is the glass steel layer. The first anticorrosive coating and the second anticorrosive coating can greatly improve the corrosion resistance of the steel pipe, and are not easy to corrode and long in service life when used for conveying corrosive fluid.

Drawings

FIG. 1 is a schematic structural view of an anticorrosive steel pipe of the present invention;

fig. 2 is a schematic sectional view taken along line a-a of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the corrosion-resistant steel pipe of the present invention includes a tubular body 1. The body 1 comprises a steel support pipe 101, and a first anticorrosive layer 102 and a second anticorrosive layer 103 are sequentially covered on the inner wall of the support pipe 101. The first anticorrosive layer 102 is a polyurethane fiber layer, the second anticorrosive layer 103 is a glass fiber reinforced plastic layer, the polyurethane fiber layer covers the inner wall of the support tube 101, and the glass fiber reinforced plastic layer covers the polyurethane fiber layer.

For convenience of connection, the two ends of the body 1 are both fixedly connected with support rings 3 concentrically, the outer annular surfaces of the support rings 3 are flush with the corresponding end surfaces of the body 1, bolt holes 5 are uniformly distributed on the annular surfaces of the support rings 3 along the circumferential direction of the support rings, a limiting shaft 2 is arranged on the outer annular surface of one support ring 3, the limiting shaft 2 is parallel to the pipe body 1, and a limiting through hole 6 which is coaxially arranged with the limiting shaft 2 is arranged on the other support ring 3.

In order to place the steel pipe on the ground conveniently, the bottom of body 1 has along its longitudinal arrangement's spout, has set gradually in the spout to be no less than two cushion 4, is the sliding fit between cushion 4 and spout, and the lower part of cushion 4 stretches out outside from the oral area of spout, and the lower limb of cushion 4 is located the below on support ring 3 lower limb.

In order to prevent the sliding block from falling, the two sides of the cushion block 4 close to the bottom of the sliding chute are provided with convex edges 7 extending outwards, the side walls of the sliding chute corresponding to the convex edges 7 are provided with abdicating openings, and the convex edges 7 are positioned in the abdicating openings correspondingly.

The utility model discloses an anticorrosive steel pipe's this anticorrosion performance that can improve the steel pipe greatly of first anticorrosive coating 102 and second anticorrosive coating 103 for when carrying the corrosive fluid, difficult quilt corrodes, and life is longer.

Claims

1. An anticorrosion steel pipe comprises a tubular body (1), and is characterized in that the body (1) comprises a steel support pipe (101), and the inner wall of the support pipe (101) is sequentially covered with a first anticorrosion layer (102) and a second anticorrosion layer (103); the first anti-corrosion layer (102) is a polyurethane fiber layer, the second anti-corrosion layer (103) is a glass fiber reinforced plastic layer, the polyurethane fiber layer covers the inner wall of the supporting tube (101), and the glass fiber reinforced plastic layer covers the polyurethane fiber layer.

2. The anti-corrosion steel pipe according to claim 1, characterized in that the two ends of the body (1) are concentrically and fixedly connected with support rings (3), the outer annular surface of each support ring (3) is flush with the corresponding end surface of the body (1), bolt holes (5) are uniformly distributed on the annular surface of each support ring (3) along the circumferential direction of the annular surface, a limiting shaft (2) is arranged on the outer annular surface of one support ring (3), the limiting shaft (2) is parallel to the pipe body (1), and a limiting through hole (6) which is coaxially arranged with the limiting shaft (2) is arranged on the other support ring (3).

3. The corrosion-resistant steel pipe according to claim 2, wherein the bottom of the body (1) is provided with a sliding groove arranged along the longitudinal direction of the body, at least two cushion blocks (4) are sequentially arranged in the sliding groove, the cushion blocks (4) are in sliding fit with the sliding groove, the lower parts of the cushion blocks (4) extend out from the opening part of the sliding groove, and the lower edges of the cushion blocks (4) are positioned below the lower edges of the support ring (3).

4. An anticorrosion steel pipe according to claim 3, wherein the two sides of the cushion block (4) near the bottom of the chute are provided with convex edges (7) extending outwards, the chute side walls corresponding to the convex edges (7) are provided with abdicating openings, and the convex edges (7) are positioned in the corresponding abdicating openings.