Deep-sea water separation guide pipe male connector end sealing structure

Abstract

The invention discloses a deep-sea water separation guide pipe male connector end sealing structure. The structure is composed of a connector end face, an outer corner and an outer wall. The connectorend face is an axial concave bevel. The outer corner is located at the junction of the outer wall and the connector end face and is in a convex arc shape. According to the structure, the deep-sea water separation guide pipe male connector end face is designed to be the axial concave bevel, and the bevel sealing structure is simple and reasonable; when male and female connectors are paired and screwed, a sealing ring is naturally guided in elastic deformation from the bevel to inside, and under the constraint of the paired female connector, the elastic deformation part of the sealing ring plays a role in enhancing the sealing performance in the structure. The adoption of the arc-shaped design of the outer corner in the end sealing structure is very important, the arc-shaped outer corner reduces the stress concentration in the structure, and the damage to a sealing pad can be avoided through pairing and screwing.

Description

technical field [0001] The invention belongs to the technical field of offshore oil equipment. Specifically, the invention relates to a joint of a water-resisting conduit, in particular to a sealing structure at the end of a male joint of a water-resisting conduit for deep sea. Background technique [0002] The deep sea riser joint is an essential equipment for offshore oil drilling, and it is divided into a male joint and a female joint. The main body involved in the present invention is a male joint with external taper thread, which is used for connecting the upper and lower joints of the water riser. The sealing of this connection structure is undertaken by the sealing ring located at the junction of the paired male and female pipe joints. The end of the male joint of the deep-sea water riser in the prior art is a plane perpendicular to the axis. After it is paired with the female joint and tightened, it squeezes the sealing ring against the end face to achieve the purpos...

AI Technical Summary

Problems solved by technology

However, the inside and outside of the end face of the joint are right-angled edges. During the tightening process of this structure, the right-angled edge of the end face of the joint has a side effect of cutting the extruded rubber sealing ring, resulting in damage to the sealing ring and directly reducing the sealing effect.

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