CN214466855U

CN214466855U - Double-socket interface

Info

Publication number: CN214466855U
Application number: CN202022870113.0U
Authority: CN
Inventors: 陈文兆
Original assignee: North Shanghai Gas Bushiness Co ltd
Current assignee: North Shanghai Gas Bushiness Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-10-22
Anticipated expiration: 2030-12-02

Abstract

The utility model relates to a natural gas transportation technical field discloses a two bellmouth interfaces, including big bellmouth and little bellmouth, ladder transition between big bellmouth and the little bellmouth, the internal diameter of big bellmouth is 700mm, and the internal diameter of little bellmouth is 500 mm. The lengths of the pipe sections of the large socket section and the small socket section are both larger than 300 mm. The utility model discloses a two bellmouth structures have satisfied the original effect that changes the bore, reduce the effect that the splice department just can reach the multiple joint.

Description

Double-socket interface

Technical Field

The utility model relates to a natural gas transport technical field especially relates to a two bellmouth interfaces.

Background

In the underground gas pipeline rush-repair construction, the leakage is often found because the gas cast iron pipeline is directly pressed on other pipelines (cement sewage pipes) to cause the gas pipe to be broken or cracked under stress, but the reason is that the original pipeline is collapsed on the basis of forcing the gas pipeline to completely drop the weight of the gas pipeline on the pipeline below the pipeline, but because other municipal pipeline materials are harder and have larger caliber than the gas cast iron pipeline, the gas pipeline is finally broken at a stress point through long-time mutual compression. Such a phenomenon often occurs in large-caliber pipelines, such as DN700 cast iron pipes, the pipelines are mostly medium-pressure pipes due to large caliber, if the pipe diameter needs to be reduced in emergency repair, the pipelines need to be reconnected through a plurality of splicing procedures in the repair process, the gas supply time is influenced, and the influence on road traffic is also large.

In the first-aid repair construction, the original construction method firstly cuts off the pipeline at the stress point generated by the settlement of the pipe position, and then carries out pipeline multiple connection on the short pipe with the reduced caliber through the original pipe fittings such as the reducer, the sleeve and the like, because the pipeline multiple connection is only carried out by reducing the caliber of the pipeline, otherwise, the stress point is generated according to the diameter multiple connection of the original pipeline.

In the process, because the original big small head structure is that the one end that the bore is little is the bellmouth, the one end that the bore is big is the socket, this must carry out the pipeline splice through the sleeve to the one end that the bore is big, and in such a work progress, because the pipeline all hangs aloft through mechanical equipment, does not have the strong point, very inconvenient when the operation fastening mechanical interface screw, this link is consuming time again power, still can not guarantee the quality, this is extremely unfavorable to nervous rush-repair time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, providing a two bellmouth interfaces, through two bellmouth structures, satisfied the original effect that changes the bore, reduce the effect that splice department just can reach the multiple joint.

The utility model adopts the technical proposal that:

a double-bellmouth interface is characterized by comprising a large bellmouth and a small bellmouth, wherein the large bellmouth and the small bellmouth are in stepped transition, the inner diameter of the large bellmouth is 700mm, and the inner diameter of the small bellmouth is 500 mm.

Further, the lengths of the pipe sections of the large bell mouth section and the small bell mouth section are both larger than 300 mm.

The utility model has the advantages that:

(1) the double-bell-mouth mode cancels the splicing of the sleeve, and the operation process is more convenient;

(2) saves the first-aid repair time and the construction cost and improves the construction quality.

Drawings

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

fig. 2 is a schematic view of the present invention connected to a gas pipe.

Detailed Description

The following describes in detail a specific embodiment of the dual socket interface of the present invention with reference to the accompanying drawings.

Referring to the attached

drawings

1 and 2, the double-bellmouth interface comprises a large bellmouth 1 and a small bellmouth 2, the large bellmouth 1 and the small bellmouth 2 are transited through a step 3, the inner diameter of the large bellmouth 1 is 700mm, and the inner diameter of the small bellmouth 2 is 500 mm. The lengths of the pipe sections of the large bellmouth 1 section and the small bellmouth 2 section are both larger than 300 mm.

The large bell mouth 1 is used for sleeving a large cast iron pipe 4 of DN700, and the small bell mouth 2 is used for sleeving a small cast iron pipe 5 of DN 500. When in maintenance, after the DN700 gas is sawn off, a section of cast iron pipe of DN500 is connected at the sawn off part through two double-socket interfaces, the gas pipe is successfully butted, the gas pipe of DN500 section can avoid the interference underground pipeline which generates stress to the gas pipe, and the rapid maintenance of the gas pipe is realized.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A dual socket interface, comprising: the large bell mouth and the small bell mouth are in stepped transition, the large bell mouth is used for being sleeved on the outer diameter of a large cast iron pipe, the small bell mouth is used for being sleeved on the outer diameter of a small cast iron pipe, the inner diameter of the large bell mouth is 700mm, and the inner diameter of the small bell mouth is 500 mm.

2. The dual socket interface of claim 1, wherein: the lengths of the pipe sections of the large socket section and the small socket section are both larger than 300 mm.