Underwater manifold connector

Abstract

The invention discloses a underwater manifold connector which comprises a base body, wherein a first cavity is formed in the base body and sealed by an end cover of the connector, a floating hydraulic cylinder is arranged in the first cavity and located in a second cavity extended by the base body, an upper piston rod and a lower piston rod are arranged in the floating hydraulic cylinder, a connection pipe required for connection and a connected pipe are arranged in the base body, an upper conical boss and a lower conical boss are arranged at the end parts of the connection pipe and the connected pipe respectively, a sealing ring is arranged between the connection pipe and the connected pipe, a plurality of upper clamping jaws are circumferentially distributed on the upper conical boss, and a plurality of lower clamping jaws are circumferentially distributed on the lower conical boss. According to the underwater manifold connector, a conical block is arranged on a manifold and has guiding and alignment functions, the installation is convenient, disassembly and replacement are convenient, and the defect that the clamping jaws bear stress unuiformly due to fatigue wear of mechanical parts can be overcome while uniform distributing of the clamping jaws is ensured by hydraulic driving.

Description

technical field [0001] The invention relates to an underwater manifold connector and belongs to the field of underwater connectors. Background technique [0002] With the discovery of deep-sea oil and gas fields in recent years, the development of deep-sea equipment has been greatly promoted. The underwater manifold connector is one of the key components in deep-sea equipment. The stability of the device, and the thrust of the jaws on the seal should be evenly distributed on the premise of satisfying the uniform distribution in the circumferential direction. [0003] At present, there are two structures to ensure the uniform distribution of the jaw sealing force: [0004] (1) Positioning grooves are set on the back of the claws, and the circumferential uniform distribution of the claws is realized through the positioning pins set on the drive ring. The assembly process of this method is relatively simple, but it needs to open a long positioning groove on the back of the cl...

AI Technical Summary

Problems solved by technology

[0006] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides an underwater manifold connector with a conical block on the manifold, with its own guiding and centering functions, which is easy to install and easy to disassemble and replace. The hydraulic drive ensures uniform distribution of the claws and avoids the defect of uneven stress on the claws due to fatigue wear of mechanical parts

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