CN215981274U

CN215981274U - Composite pipe leakage-stopping combined short joint

Info

Publication number: CN215981274U
Application number: CN202122467446.3U
Authority: CN
Inventors: 王庆波; 常怡立; 拓福军; 安海东; 刘文军; 陈玉奇; 常魏立; 代占防
Original assignee: Puyang Jindun Seal Pipe Co ltd
Current assignee: Puyang Jindun Seal Pipe Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-03-08
Anticipated expiration: 2031-10-13

Abstract

The composite pipe leakage-stopping combined short joint is a high-pressure composite pipe field maintenance connection technology, solves the problems in the prior art, and comprises a high-pressure composite pipe short joint, a first buckling and pressing sleeve skin, a first short joint core pipe, a first core pipe connecting female buckle, a second buckling and pressing sleeve skin, a second short joint core pipe, a second buckling and pressing core pipe male buckle and a field buckling and pressing sleeve skin, wherein the first short joint core pipe and the second short joint core pipe are connected with two ends of the high-pressure composite pipe short joint, and the connection part of the high-pressure composite pipe short joint is buckled and fixed by the first buckling and pressing sleeve skin and the second buckling and pressing sleeve skin; one end of the first core pipe nipple is connected with the first core pipe connection female buckle; the second short section of core pipe is in female buckle connection with the second buckling and pressing core pipe; the outer end of the second buckling core pipe female buckle is connected with the original high-pressure composite pipe and is buckled and fixed by the on-site buckling sleeve leather.

Description

Composite pipe leakage-stopping combined short joint

Technical Field

The utility model relates to a field maintenance connection technology for a high-pressure composite pipe, in particular to a composite pipe leakage-stopping combined short joint.

Background

At present, when some composite material pipelines are damaged and repaired, the used repairing and connecting technology is that special equipment at two ends are buckled and pressed together, and steel pipelines are required to be used for filling and electric welding connection when the damaged lengths of the pipelines are different and the damaged lengths are larger, so that the method consumes manpower and material resources and is not environment-friendly, and potential safety hazards exist in the welding of oil and gas well sites; the steel pipeline is easy to corrode and leak, and particularly, the welding seam is easy to leak and pollute; the high-pressure composite pipeline is made of various chemical materials, the pipeline stretching phenomenon is easy to occur when the high-pressure composite pipeline is used in plateau and mountain areas, and the pipeline caliber is easy to increase or decrease when the high-pressure composite pipeline runs under high pressure; the phenomenon that the conventional pipe fitting cannot be used on site is caused, and the site cannot be salvageed.

Disclosure of Invention

The utility model aims to provide a convenient and efficient composite pipe leakage-stopping combined short joint, which solves the problems in the prior art and is realized in such a way that the short joint comprises a high-pressure composite pipe short joint, a first buckling and pressing sleeve leather, a first short joint core pipe, a first core pipe connecting female buckle, a second buckling and pressing sleeve leather, a second short joint core pipe, a second buckling and pressing core pipe male buckle and a field buckling and pressing sleeve leather, wherein the first short joint core pipe and the second short joint core pipe are connected at two ends of the high-pressure composite pipe short joint, and the connection part of the high-pressure composite pipe short joint is buckled and fixed by the first buckling and pressing sleeve leather and the second buckling and pressing sleeve leather; one end of the first core pipe nipple is connected with the first core pipe connection female buckle; the second short section of core pipe is in female buckle connection with the second buckling and pressing core pipe; the outer end of the second buckling core pipe female buckle is connected with the original high-pressure composite pipe and is buckled and fixed by the on-site buckling sleeve leather.

A plurality of sealing grooves are formed in the first short section core pipe and the second short section core pipe, and a sealing ring is arranged in each sealing groove for sealing; one end of the first pipe nipple core pipe and one end of the second pipe nipple core pipe are both conical, so that the installation is convenient.

One end of each of the first buckling sleeve leather and the second buckling sleeve leather is provided with a connecting step, and the connecting step of the first buckling sleeve leather is matched with the clamping groove on the first short section core pipe; the connecting step of the second buckling sleeve is matched with the clamping groove of the second short section core tube; the inner walls of the first buckling and pressing sleeve leather and the second buckling and pressing sleeve leather are thread layers.

The significance of the utility model is as follows: the utility model has the advantages of convenient use and higher operation efficiency; secondly, as the rubber pipes are connected, the anti-corrosion and long-service life are achieved; thirdly, the bending is possible, and the joint is not easy to break; and fourthly, the buckling core pipe is provided with a plurality of sealing grooves, and a sealing ring is arranged in each sealing groove for sealing, so that the buckling core pipe is suitable for the phenomenon of pipe diameter change caused by pipeline stretching. The connection mode is firm.

Drawings

Fig. 1 is a schematic structural diagram of a composite pipe leakage stoppage combined short joint, in which 1, a high-pressure composite pipe short section 2, a first buckling and pressing sleeve skin 3, a first short section core pipe 4, a first core pipe connecting female buckle 5, a second buckling and pressing sleeve skin 6, a second short section core pipe 7, a second buckling and pressing core pipe female buckle 8 and a field buckling and pressing sleeve skin are arranged.

Fig. 2 is a schematic diagram of a part of a composite pipe leakage stoppage combined short joint, in the figure 6, a second short section core pipe 9 and a sealing groove.

Fig. 3 is an internal structure diagram of a metal buckling sleeve skin, wherein 10 is a connecting step 11 and a thread layer.

Detailed Description

The pipe comprises a high-pressure composite pipe nipple 1, a first buckling and pressing sleeve skin 2, a first nipple core pipe 3, a first core pipe connecting female buckle 4, a second buckling and pressing sleeve skin 5, a second nipple core pipe 6, a second buckling and pressing core pipe male buckle 7 and a field buckling and pressing sleeve skin 8, wherein the first nipple core pipe 3 and the second nipple core pipe 6 are connected to two ends of the high-pressure composite pipe nipple 1, and the connection parts of the first nipple core pipe 3 and the second nipple core pipe 6 are buckled and fixed by the first buckling and pressing sleeve skin 2 and the second buckling and pressing sleeve skin 5; one end of the first short section core tube 3 is connected with the first core tube connecting female buckle 4; the second short section of core tube 6 is connected with a second buckling and pressing core tube female buckle 7; the outer end of the second buckling core pipe female buckle 7 is connected with the original high-pressure composite pipe and is buckled and fixed by a field buckling sleeve leather 8.

In embodiment 2, a plurality of sealing grooves 9 are respectively arranged on the first short section core pipe 3 and the second short section core pipe 6, and a sealing ring is arranged in each sealing groove 9 for sealing; one ends of the first short section core pipe 3 and the second short section core pipe 6 are both conical, so that the installation is convenient.

In embodiment 3, one end of each of the first buckling sleeve leather 2 and the second buckling sleeve leather 5 is provided with a connecting step 10, and the connecting step of the first buckling sleeve leather 2 is matched with a clamping groove on the first short section core tube 3; the connecting step of the second buckling and pressing sleeve 5 is matched with the clamping groove of the second short section core tube 6; the inner walls of the first buckling and pressing sleeve leather 2 and the second buckling and pressing sleeve leather 5 are both thread layers 11.

Claims

1. Composite pipe leaking stoppage combination short circuit, it includes that high pressure composite pipe nipple joint (1), first knot press cover skin (2), first nipple joint core pipe (3), first nipple joint union coupling box (4), second knot press cover skin (5), second nipple joint core pipe (6), second knot press core pipe box (7), on-the-spot knot press cover skin (8), characterized by: the two ends of the high-pressure composite pipe nipple (1) are connected with a first nipple core pipe (3) and a second nipple core pipe (6), and the joint of the high-pressure composite pipe nipple and the second nipple core pipe is buckled and fixed by a first buckling and pressing sleeve leather (2) and a second buckling and pressing sleeve leather (5); one end of the first short section core pipe (3) is connected with the first core pipe connecting female buckle (4); the second short section core tube (6) is connected with a second buckling core tube female buckle (7); the outer end of the second buckling core pipe female buckle (7) is connected with the original high-pressure composite pipe and is buckled and fixed by a field buckling sleeve leather (8).

2. The composite pipe leakage-stopping combined short joint as claimed in claim 1, which is characterized in that: a plurality of sealing grooves (9) are formed in the first short section core pipe (3) and the second short section core pipe (6), and a sealing ring is arranged in each sealing groove (9) for sealing; one ends of the first short section core pipe (3) and the second short section core pipe (6) are both conical, so that the installation is convenient.

3. The composite pipe leakage-stopping combined short joint as claimed in claim 1, which is characterized in that: one end of each of the first buckling and pressing sleeve leather (2) and the second buckling and pressing sleeve leather (5) is provided with a connecting step (10), and the connecting step of the first buckling and pressing sleeve leather (2) is matched with a clamping groove in the first short section core pipe (3); the connecting step of the second buckling and pressing sleeve leather (5) is matched with the clamping groove of the second short section core pipe (6); the inner walls of the first buckling and pressing sleeve leather (2) and the second buckling and pressing sleeve leather (5) are both thread layers (11).