Pipeline connection device and sealing connection method thereof

Abstract

The invention discloses a pipeline connecting device and a sealing connecting method thereof. The device comprises a support, an insert and a swelling sealing ring, wherein the support is connected with a pipeline; the insert is connected with another pipeline; the support is provided with a forming chamber of a set geometrical shape; a channel for arranging the swelling sealing ring is formed in the inner wall of the forming chamber; the insert is provided with an outer wall matched with the forming chamber; the swelling sealing ring comprises an outer wall made of an elastic material and an annular cavity formed by the outer wall and used for accommodating an swelling material; an injection port is formed in the outer side of the outer wall; and after the insert is inserted into the forming chamber, the swelling material swells inside the annular cavity to expand the elastic outer wall of the swelling sealing ring, and the inner wall of the forming chamber of the support and the outer wall of the insert are compressed, so that the sealing at the joint part of the support and the insert is realized.

Description

technical field [0001] The invention relates to the field of pipe materials, in particular to a pipe connection device and a sealing connection method thereof. Background technique [0002] Pipelines are the fastest, economical and reliable way to transport media. Natural gas, water, oil, etc. can all be transported through pipelines. With the development of the economy, more and more pipes are used, and the pipe diameters are also getting larger. [0003] The connection technology of the pipeline has a very important influence on the construction process of the pipeline or the sealing effect of the pipeline. The existing pipeline connection methods are nothing more than flange connections, quick joint connections, etc., but these connection methods are not There are certain flaws. For example, the common flange connection is troublesome to install, and there are many accessories such as bolts and cushions. Leakage is prone to occur when the bolts are tightened asymmetrica...

AI Technical Summary

Problems solved by technology

For example, common flange connections are troublesome to install, and many accessories such as bolts and cushions are used. Leakage is prone to occur when the bolts are tightened asymmetrically. Due to the large number of bolts, the workload of fastening bolts is large and the installation cost is high. When used for underground transportation pipelines, because the pipelines need to be filled with soil, there is often no hard support attached, and it is easy to cause damage to the connecting parts and fail when the foundation settles.

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