CN205534647U - Inside lining stainless steel ring's heavy -calibre anticorrosive steel pipe - Google Patents

Abstract

The utility model relates to a large-diameter anti-corrosion steel pipe lined with stainless steel rings, which includes an anti-corrosion steel pipe body. The ring is composed of an inner lining ring, an outer lining ring and a reinforced air-permeable corrugated ring. The inner lining ring and the outer lining ring are arranged concentrically. It is integrated with the anti-corrosion steel pipe body. The utility model has a scientific and reasonable structural design, has the advantages of prolonging the service life, saving manpower, improving welding efficiency, and convenient operation.

Description

A large-diameter anti-corrosion steel pipe lined with stainless steel rings

technical field

The utility model relates to an anti-corrosion steel pipe, in particular to a large-diameter anti-corrosion steel pipe lined with a stainless steel ring.

Background technique

Anti-corrosion steel pipe refers to steel pipes that have been processed by anti-corrosion technology, which can effectively prevent or slow down the corrosion phenomenon caused by chemical or electrochemical reactions during transportation and use. Most of the existing anti-corrosion steel pipes spray anti-corrosion coatings on the inner and outer surfaces of the steel pipes, but for large-diameter steel pipes that cannot be connected by flanges or other connectors, when two steel pipes are welded, due to welding heat, the welding will be destroyed. The anti-corrosion structure around the seam shortens the service life of the anti-corrosion steel pipe; in addition, after welding, it is necessary to manually drill into the steel pipe to repair the inner wall of the weld, which is inconvenient to operate and time-consuming.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a large-diameter anti-corrosion steel pipe with a stainless steel ring lined with a scientific and reasonable design, prolonging the service life, saving manpower, improving welding efficiency, and convenient operation.

The utility model solves its technical problem and realizes by taking the following technical solutions:

A large-diameter anti-corrosion steel pipe lined with stainless steel rings, comprising an anti-corrosion steel pipe body, characterized in that it also includes stainless steel rings, and the inner walls of both ends of the anti-corrosion steel pipe body are lined with stainless steel rings, and the stainless steel rings are lined with Ring, outer lining ring and reinforced air-permeable corrugated, the inner lining ring and the outer lining ring are set concentrically, and a ring of reinforced air-permeable corrugated is arranged between the inner lining ring and the outer lining ring. become one.

Moreover, the wall thickness of the anti-corrosion steel pipe body is 80-150 mm, and the wall thickness of the stainless steel ring after pressurization is 8-15 mm.

Advantage and positive effect of the present utility model are:

1. The large-diameter anti-corrosion steel pipe lined with stainless steel rings is lined with stainless steel rings at both ends of the original anti-corrosion steel pipe, so that there is no need to worry about damage to the anti-corrosion coating on the inner wall of the steel pipe due to excessive temperature during welding. , The new stainless steel ring has a built-in reinforced ventilated corrugated structure. The setting of the reinforced ventilated corrugated not only plays a strengthening role, but also disperses the heat generated during welding to avoid deformation of the anti-corrosion steel pipe and stainless steel ring.

2. The structure design of the utility model is scientific and reasonable, and has the advantages of prolonging service life, saving manpower, improving welding efficiency, and convenient operation. It is a large-diameter anti-corrosion steel pipe lined with stainless steel ring with high innovation.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the utility model stainless steel ring;

Fig. 3 is an enlarged view of part A of Fig. 2 .

Explanation of reference signs:

1-anti-corrosion steel pipe body, 2-stainless steel ring, 3-outer lining ring, 4-reinforced breathable corrugated, 5-inner lining ring.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail through specific embodiments. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present utility model.

A large-diameter anti-corrosion steel pipe lined with stainless steel rings, comprising an anti-corrosion steel pipe body 1, characterized in that: it also includes a stainless steel ring 2, the inner walls of both ends of the anti-corrosion steel pipe body are lined with stainless steel rings, and the stainless steel rings are composed of The inner lining ring 5, the outer lining ring 3 and the reinforced air-permeable corrugated ring 4 are formed. The inner lining ring and the outer lining ring are arranged concentrically. The heating is integrated with the anti-corrosion steel pipe body.

The wall thickness of the anti-corrosion steel pipe body is 80-150 mm, and the wall thickness of the stainless steel ring after pressurization is 8-15 mm.

In this utility model, stainless steel rings are lined at both ends of the original anti-corrosion steel pipe, so that there is no need to worry about damage to the anti-corrosion coating on the inner wall of the steel pipe due to high temperature during welding. The corrugated structure, the setting of the reinforced air-permeable corrugated not only plays a strengthening role, but also disperses the heat generated during welding to avoid deformation of the anti-corrosion steel pipe and stainless steel ring.

Although the embodiments and drawings of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various replacements, changes and modifications can be made without departing from the spirit and scope of the utility model and the appended claims. It is possible, therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims (2)

1. a large-diameter anti-corrosion steel pipe lined with stainless steel rings, comprising an anti-corrosion steel pipe body, is characterized in that: it also includes a stainless steel ring, and the inner walls at both ends of the anti-corrosion steel pipe body are lined with stainless steel rings, and the stainless steel rings are formed by It consists of inner lining ring, outer lining ring and reinforced air-permeable corrugated ring. The inner lining ring and outer lining ring are arranged concentrically. The steel pipe body is integrated. 2. A large-diameter anti-corrosion steel pipe lined with a stainless steel ring according to claim 1, characterized in that: the wall thickness of the anti-corrosion steel pipe body is 80-150 mm, and the wall thickness of the stainless steel ring after pressurization is 8-15 mm .