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Screw-in type pipeline connector

A connector and screw-in technology, which is applied in the direction of sealing surface connection, pipe/pipe joint/fitting, passing components, etc., can solve the problems of low connection reliability, complicated connection process, high failure possibility, etc., and achieve the overall structure Simple and compact, smooth connection process and small pipe deformation

Active Publication Date: 2019-04-09
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the connection methods of pipelines mainly include: welding, bolted flange connection, clamp connection, claw connection, compression connection, etc. The connection process of these methods is complicated, the operation is cumbersome, the cost is high, and the possibility of failure is high. Requirements for Fast and Reliable Connectivity in Emergency Situations
[0003] At present, domestic research on non-welded pipe connectors is still in its infancy. The main disadvantages of non-welded connectors are that the connection reliability is not high and they cannot bear large axial loads.

Method used

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  • Screw-in type pipeline connector
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  • Screw-in type pipeline connector

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] to combine Figure 1 to Figure 4 , the screw-in pipe connector of the present invention, when the connector is installed, first determine the position and size of the damaged pipe, determine the length of the cut pipe according to the size of the damage and prefabricate a new pipe with the same diameter, material and wall thickness, the new pipe The length is slightly shorter than the cut part, which is convenient for installation and docking of pipes during connection. Then, lower 4 pipe lifting racks from the workboat and adjust them to the designated positions. The pipe lifter lifts the pipe some distance away from the seabed. Use the pipe cutting machine to cut the pipe at the predetermined position, and recover the cut pipe to the operation ship through the cable. Lower the prefabricated pipeline from the workboat, lift...

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Abstract

The invention provides a screw-in type pipeline connector. The screw-in type pipeline connector comprises a pressure-bearing joint used for connecting two pipelines and two screw-in type squeezing rings symmetrically arranged on the two sides of the inner surface of the pressure-bearing joint. The pressure-bearing joint is of a tubular symmetrical structure with a middle transition line as the baseline. Circumferential sealing rings and annularly-distributed axial anchoring teeth are arranged on the pressure-bearing joint and are respectively located on the two sides of a middle transition section. Rectangular threads are symmetrically arranged at the two ends of the inner oblique surface of a squeezing groove of the pressure-bearing joint. Rectangular threads matched with the rectangularthreads on the inner oblique surface of the pressure-bearing joint are arranged on the outer surfaces of the screw-in type squeezing rings. The screw-in type pipeline connector is simple in structureand capable of realizing connection of submarine pipelines and broken pipelines rapidly and reliably.

Description

technical field [0001] The invention relates to a pipeline connector, in particular to a screw-in pipeline connector in which a rectangular thread rotates around the central axis of a pressure-bearing joint and cooperates with axial advancement, and belongs to the technical field of pipeline connection. Background technique [0002] Pipeline connectors are an important part of the underwater pipeline maintenance system, which reduces economic losses and protects the marine environment while repairing and connecting damaged pipelines. At present, the connection methods of pipelines mainly include: welding, bolted flange connection, clamp connection, claw connection, compression connection, etc. The connection process of these methods is complicated, the operation is cumbersome, the cost is high, and the possibility of failure is high. Requirements for fast and reliable connections in emergency situations. [0003] At present, domestic research on non-welded pipe connectors i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L19/06
CPCF16L19/06
Inventor 王立权蔡文森李振宇张恩华房正堂吴磊王克林张哲华张宁
Owner HARBIN ENG UNIV
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