CN217301930U

CN217301930U - Corrosion-resistant submerged arc welding steel pipe

Info

Publication number: CN217301930U
Application number: CN202221008046.4U
Authority: CN
Inventors: 杨新根
Original assignee: Jinhua Weiling Pipe Co ltd
Current assignee: Jinhua Weiling Pipe Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-26
Anticipated expiration: 2032-04-27

Abstract

The utility model relates to a corrosion-resistant submerged arc welding steel pipe, which comprises a pipe body, wherein the outer side of the pipe body is wrapped with a protective sleeve; the tube body comprises a main body layer, the outer side wall of the main body layer is fixedly connected with a first protective layer, and the inner side wall of the main body layer is fixedly connected with a second protective layer; the protective sheath includes the heat preservation, heat preservation lateral wall fixedly connected with compressive layer, compressive layer lateral wall fixedly connected with outer shell, the heat preservation cup joints in the first protective layer outside, and both sliding connection, the thickness ratio of body and protective layer is 1: 1. the utility model provides a steel pipe has better corrosion resistance, heat insulating ability, resistance to compression anticollision bad nature, and cup joints the convenient dismantlement body of the mode of body through the protective sheath and changes, also is convenient for both to install.

Description

Corrosion-resistant submerged arc welding steel pipe

Technical Field

The utility model relates to a steel pipe technical field especially relates to a corrosion-resistant submerged arc welding steel pipe.

Background

The submerged arc welding steel pipe has the advantages of high pressure bearing capacity, small resistance, low temperature resistance, corrosion resistance, convenient installation and maintenance and the like, and is widely used as a pipeline for conveying fluid, such as petroleum, natural gas, coal gas, water, certain solid materials and the like.

However, water vapor in the environment easily erodes the outer wall of the submerged arc welded steel pipe, which causes the outer wall of the submerged arc welded steel pipe to be easily corroded, and further causes the corrosion resistance of the submerged arc welded steel pipe as a whole to be lowered, and further reduces the service life and the use safety of the submerged arc welded steel pipe.

SUMMERY OF THE UTILITY MODEL

The utility model provides a corrosion-resistant submerged arc welding steel pipe has solved the technical problem among the prior art.

The utility model provides an above-mentioned technical problem's scheme as follows: the corrosion-resistant submerged arc welding steel pipe comprises a pipe body, wherein a protective sleeve is wrapped on the outer side of the pipe body; the tube body comprises a main body layer, the outer side wall of the main body layer is fixedly connected with a first protective layer, and the inner side wall of the main body layer is fixedly connected with a second protective layer; the protective sheath includes the heat preservation, heat preservation lateral wall fixedly connected with compressive layer, compressive layer outer wall fixedly connected with shell layer.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the heat preservation is sleeved on the outer side of the first protection layer, and the heat preservation layer and the first protection layer are in sliding connection.

Further, the main body layer is a stainless steel pipeline.

Further, both the first protective layer and the second protective layer are waterproof paint layers.

Further, the heat-insulating layer is a calcium silicate heat-insulating product.

Further, the pressure-resistant layer is made of foam.

Further, the outer shell layer is a waterproof roll paved on the outer layer.

Further, the thickness ratio of the pipe body to the protective sleeve is 1: 1.

the beneficial effects of the utility model are that: the utility model provides a corrosion-resistant submerged arc welding steel pipe has following advantage:

1. the utility model discloses be provided with body and protective sheath, the protective sheath cup joints at the body skin, can play the guard action to the body, and the convenient body of dismantling simultaneously is changed, also is convenient for both to install.

2. The utility model provides a submerged arc welding steel pipe sets up first protective layer and second protective layer for the steel pipe has fine corrosion resistance, sets up the compressive layer, makes the steel pipe have the bad function of resistance to compression anticollision, is provided with the heat preservation, makes steel pipe inner wall temperature comparatively stable, guarantees that the inner wall medium circulates smoothly.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

FIG. 1 is a schematic structural view of a corrosion-resistant submerged arc welded steel pipe according to the present invention;

FIG. 2 is a cross-sectional view of a corrosion-resistant submerged arc welded steel pipe as provided in FIG. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a tube body; 11. a body layer; 12. a first protective layer; 13. a second protective layer; 2. a protective sleeve; 21. a heat-insulating layer; 22. a pressure resistant layer; 23. an outer shell layer.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are intended to illustrate the present invention and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in a very simplified form and are not to precise scale, which is only used for the purpose of facilitating and clearly explaining the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-2, the utility model provides a corrosion-resistant submerged arc welded steel pipe, which comprises a pipe body 1, wherein a protective sleeve 2 is wrapped outside the pipe body 1; the tube body 1 comprises a main body layer 11, wherein the outer side wall of the main body layer 11 is fixedly connected with a first protective layer 12, and the inner side wall of the main body layer 11 is fixedly connected with a second protective layer 13; protective sheath 2 includes heat preservation 21, and heat preservation 21 lateral wall fixedly connected with resistance to compression layer 22, resistance to compression layer 22 lateral wall fixedly connected with outer shell layer 23.

Preferably, the heat preservation 21 cup joints in the first protection layer 12 outside, and both sliding connection, and the submerged arc welding steel pipe has body 1 and protective sheath 2 to constitute, and protective sheath 2 cup joints at body 1 skin, conveniently dismantles body 1 and changes, also is convenient for both installations.

Preferably, main part layer 11 is stainless steel pipeline, and main part layer 11 adopts stainless steel, when satisfying certain structural strength, can have stronger corrosion resistance, accords with the pipeline demand.

Preferably, both the first protective layer 12 and the second protective layer 13 are waterproof paint layers.

Preferably, heat preservation 21 is calcium silicate insulation product, and heat preservation 21 can completely cut off ambient temperature, prevents to take place the phenomenon of freezing in body 1, hinders the medium transportation.

Preferably, the pressure-resistant layer 22 is made of foam, and the pressure-resistant layer 22 can prevent the pipe body 1 from being impacted or crushed, so as to protect the pipe body 1.

Preferably, the outer layer 23 is a waterproof roll material laid on the outer layer, and the outer layer 23 can prevent external pollution from contacting the pipe body 1.

Preferably, the thickness ratio of the tubular body 1 to the protective sheath 2 is 1: 1.

the utility model discloses a concrete theory of operation and application method do: this submerged arc welding steel pipe has body 1 and protective sheath 2 to constitute, protective sheath 2 cup joints at body 1 skin, conveniently dismantle body 1 and change, also be convenient for both installation, wherein first protective layer 12 and second protective layer 13 in the body 1 protect main part layer 11, prevent that main part layer 11 from being corroded, the corrosion, when protective sheath 2's outer shell 23 can prevent external pollution to contact body 1, compressive layer 22 on it can prevent that body 1 from being strikeed or crushed, heat preservation 21 can completely cut off the external temperature, prevent to take place the phenomenon of freezing in the body 1, hinder the medium transportation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Those not described in detail in this specification are within the skill of the art.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that the equivalent embodiments of the present invention are equivalent embodiments of the present invention, and that the changes, modifications and evolutions made by the above-disclosed technical contents are not departed from the technical scope of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. The corrosion-resistant submerged arc welding steel pipe comprises a pipe body (1), and is characterized in that a protective sleeve (2) is wrapped on the outer side of the pipe body (1);

the tube body (1) comprises a main body layer (11), the outer side wall of the main body layer (11) is fixedly connected with a first protective layer (12), and the inner side wall of the main body layer (11) is fixedly connected with a second protective layer (13);

protective sheath (2) are including heat preservation (21), heat preservation (21) lateral wall fixedly connected with anti-pressure layer (22), anti-pressure layer (22) lateral wall fixedly connected with outer shell layer (23).

2. The corrosion-resistant submerged arc welded steel pipe according to claim 1, characterized in that the insulation layer (21) is sleeved outside the first protection layer (12) and is connected with the first protection layer in a sliding mode.

3. A corrosion resistant submerged arc welded steel pipe according to claim 1, characterized in that the bulk layer (11) is a stainless steel pipe.

4. A corrosion resistant submerged arc welded steel pipe according to claim 1, characterized in that both the first (12) and second (13) protective layers are waterproof paint layers.

5. A corrosion resistant submerged arc welded steel pipe according to claim 1, characterized in that said insulation layer (21) is calcium silicate insulation.

6. A corrosion resistant submerged arc welded steel pipe according to claim 1, characterized in that said pressure resistant layer (22) is of foam.

7. A corrosion resistant submerged arc welded steel pipe according to claim 1, characterized in that said outer shell layer (23) is a waterproof coil laid on the outer layer.

8. A corrosion resistant submerged arc welded steel pipe according to claim 1 characterized in that the thickness ratio of the pipe body (1) and the protective sheath (2) is 1: 1.