RU2472056C1 - Pipeline connection - Google Patents

Abstract

FIELD: machine building; pipeline.

SUBSTANCE: connection of pipes having a coupling of flared end and smooth end is performed by installing into an annular slot of coupling of locking members along the whole circumference of smooth pipe end, which allows uniform distribution of clamping force. In order to provide the reliable connection, locking members are fixed with tape.

EFFECT: invention improves connection reliability of pipelines, mainly of large diameter.

2 dwg

Description

The invention relates to the field of engineering, and in particular to pipe joints of water supply, sewage, heat supply, oil and gas industries.

Closest to the proposed pipeline connection is a connection containing an annular stop made on the smooth end of the pipe, and between the socket sleeve and the ring stop of the smooth end there are two stop elements held together by an arc-shaped rod [SU 6430971].

The purpose of the invention is the provision of a more reliable connection of pipes, especially large diameters.

This goal is achieved by installing locking elements along the entire diameter of the smooth part of the pipe and fixing these elements with flexible tape.

In figures 1 and 2 presents the described compound.

The connection consists of a socket sleeve 1, a pipe with a smooth end 2, between which a sealing sleeve 4 is installed, an annular stop 3, locking elements 5 and a fixing tape 6.

The device operates as follows.

A pipe made of ductile iron made by centrifugal casting has a smooth end 2, where an annular stop 3 is welded at a certain distance from its edge. The socket sleeve 1 has an annular arc-shaped groove 7 and two windows 8 and 9 at the end of the coupling.

A sealing sleeve 4 is installed in the socket sleeve, the smooth end of the pipe 2 is inserted into the socket sleeve 1. The locking elements 5 are inserted through the window of the socket sleeve 8 and distributed along the entire circular circumference of the smooth end of the pipe 2 along the circular arc-shaped groove 7 After installing all the locking elements 5 provided by the connection design, they are turned in one direction until the last two locking elements are half visible from the window 8. To facilitate the shift of the locking elements around the pipe circumference, a window 9 is provided at the end of the socket of the socket 7. The locking elements 5 are pulled together by a fixing flexible tape 6, which is made of materials that provide flexible deformation when the axes of the smooth end of the pipe 2 and the socket of the socket 1 are deflected by an angle determined by the design connections. The locking elements 5 are made of ductile iron or other material of equal strength and corrosion resistance.

Claims (1)

A pipe connection consisting of pipes having a socket sleeve and a smooth end, characterized in that the locking elements are distributed around the entire circumference of the pipe smooth end and form a uniform clamping force between the welded ring-shaped stop and the socket sleeve, two windows are made on the socket sleeve that provide structural freedom installation in an annular arcuate groove and closing the connection after turning the locking elements around the smooth end of the pipe, the locking elements are fixed on a smooth Onze tube ribbon fixing belt is made of materials that provide a flexible deformation upon deflection axes spigot and coupling socket to the angle defined compound structure, and the locking elements are made of ductile iron or other material of equivalent strength and corrosion resistance.

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