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Rapid dragging device for submarine pipeline construction

A technology for submarine pipelines and hauling devices, which is used in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc. The blue docking work is convenient and fast, reducing the difficulty of installation and operation, and shortening the operation time.

Inactive Publication Date: 2019-03-01
NEPTUNE OFFSHORE ENG DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When in use, more bolts are used to connect the blind flange and the pipe end flange, and the bolts need to be removed after being dragged underwater to a predetermined position. Dropped and lost
In addition, the structural weight of this conventional device is relatively large, and it is difficult for divers to move underwater, which further increases the difficulty of underwater work

Method used

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  • Rapid dragging device for submarine pipeline construction
  • Rapid dragging device for submarine pipeline construction

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Embodiment Construction

[0016] Attached below figure 1 And attached figure 2 , the present invention is described in detail.

[0017] A flange drag quick connection device 3 for submarine pipeline construction, including a device body 3.2, a drag edge plate 3.1, a jacking screw 3.3, a swing claw 3.4 and a detachable pin shaft 3.7. The device body 3.2 is a group of all components For the installation base, it is a triangular structure cut and processed by a steel plate. The end of the triangle is a notch structure. The upper and lower sides of the notch are welded with lug seats. ; The drag force along the plate 3.1 is in the form of an open ear plate, which is connected with the shackle on the pulling wire rope to transmit the pulling force, and the lower end is welded as one with the device body 3.2; the jacking screw 3.3 is a piece A screw with a small transverse through hole at the end, which can be tightened or loosened by turning it through an iron rod or other rigid hard rod when in use, and...

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Abstract

The invention provides a rapid dragging device for submarine pipeline construction. The device includes a device body, a towing tension edge plate, top tightening screws, swinging clamping claws and detachable pins. Flanges at the end part of a pipeline can be tightly grabbed through three sets of the swinging clamping claws which can be opened and closed during using; the top tightening screws can be used to tightly clamp the flanges; and the swinging clamping claws can be fixed through the detachable pins, so that the rapid connecting and dragging of the device and the pipeline flanges can be realized. The top tightening screws can be unscrewed after the flanges are dragged in place, and the detachable pins can be removed so that the swinging clamping claws can swing, and therefore, thedevice can be rapidly freed. The device can effectively reduce the difficulty of installation operation, and is convenient in underwater freeing; and the flanges of the delivery line can be rapidly dragged in place for installing, so that convenient and fast follow-up flange docking work can be realized, and therefore, construction efficiency can be enhanced, operation time can be shortened, and good economic benefits can be created.

Description

technical field [0001] The invention relates to a fast dragging device for submarine pipeline construction, especially for the underwater dragging construction operation of pipelines that need to be connected with underwater flanges. Background technique [0002] The submarine pipeline is the most commonly used production equipment in the offshore oil industry. It is called the lifeline and blood vessel of offshore oil. It can transport crude oil or natural gas over long distances. According to the requirements of different oil and gas field development, different pipelines can be configured, such as marine composite hoses, steel pipes, etc. The installation of the pipeline generally starts after the platform is installed. In the world, flanges are generally used to connect the delivery pipeline and the riser of the platform. Due to the immature underwater welding technology, a rotating flange is usually installed on the standpipe, and Prefabricated on the platform structur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/20F16L1/12
CPCF16L1/20F16L1/12
Inventor 陈伟
Owner NEPTUNE OFFSHORE ENG DEV
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