Underwater pipeline connecting device and pipeline connecting method

A technology for connecting devices and underwater pipelines, applied in the direction of pipes/pipe joints/fittings, connecting components, flange connections, etc., can solve the problems of affecting the connection of pipes, loosening of bolts, and laborious connection, so as to ensure the sealing effect and avoid troubles. , the effect of convenient operation

Pending Publication Date: 2022-03-08
INNER MONGOLIA UNIV OF TECH
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Problems solved by technology

It is very laborious to connect; in addition, the sealing requirements of submarine pipelines are relatively high. Although the existing flanges with sealing bosses have good sealing effect, they will affect the connection of pipelines during use, which is inconvenient to use; Bolts tend to loosen after a certain amount of time, causing leaks

Method used

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  • Underwater pipeline connecting device and pipeline connecting method
  • Underwater pipeline connecting device and pipeline connecting method
  • Underwater pipeline connecting device and pipeline connecting method

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] see Figure 1-7 , the present invention provides a technical solution: an underwater pipeline connection device, comprising a left flange 1 and a right flange 2, the left flange 1 and the right flange 2 are arranged oppositely, and the left flange 1 is provided with a sealing ring 10 , so as to form a seal after being docked with the right flange 2, and also includes a traction mechanism, a clamping mechanism, and a compression waterproof mechanism. A t...

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Abstract

The invention discloses an underwater pipeline connecting device and a pipeline connecting method.The underwater pipeline connecting device comprises a left flange, a right flange, a traction bolt, a fixing bolt and a pressing ring, the left flange and the right flange are oppositely arranged, a traction mechanism is arranged between the left flange and the right flange, and a plurality of clamping mechanisms are arranged on the traction mechanism; the left flange is further provided with a pressing waterproof mechanism. Aligning the left flange, the right flange and threaded holes and through holes in the left flange and the right flange; connecting the left flange and the right flange; a fixing bolt is clamped; and the pressing ring is pressed, so that the left flange and the right flange form a sealing seal. The device is provided with the traction mechanism, and the traction mechanism can well resist the pressure of the seabed and the buoyancy of water; simultaneous positioning of the pipeline and the threaded hole is achieved, and secondary positioning is avoided; the pressing waterproof mechanism is arranged, so that alignment between the flanges cannot be affected; and the clamping mechanism is arranged, the clamping mechanism further clamps the fixing bolt, and the fixing bolt is prevented from loosening due to seawater scouring.

Description

technical field [0001] The invention relates to the field of submarine pipeline connection, in particular to an underwater pipeline connection device and a pipeline connection method. Background technique [0002] The submarine pipeline is a pipeline that continuously transports a large amount of oil (gas) on the seabed through a closed pipeline. It is the main component of the offshore oil (gas) field development and production system, and it is also the fastest, safest, most economical and reliable way of offshore oil and gas transportation. . Submarine pipeline laying is difficult, especially when pipelines are connected. Due to the pressure of the seabed and the buoyancy of water, it is difficult to align the pipelines. After alignment, the position of the threaded holes needs to be further calibrated. It is very laborious to connect; in addition, the sealing requirements of submarine pipelines are relatively high. Although the existing flanges with sealing bosses have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L23/024F16L23/18F16B39/02
CPCF16L23/024F16L23/18F16B39/02
Inventor 秦建国季明辉弓海霞岑海棠杨波
Owner INNER MONGOLIA UNIV OF TECH
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