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Hose connection flange

A hose connection and flange technology, which is used in hose connection devices, flange connections, pipes/pipe joints/fittings, etc., can solve problems such as high cost, inability to solve long-term sealing, and long welding cycle for pipe joint connections. , to achieve the effect of long-term sealing, convenient operation and maintenance, and saving construction time.

Inactive Publication Date: 2015-12-09
NEPTUNE OFFSHORE ENG DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many flange connections of foreign pipelines. Because the current connection of domestic hoses cannot solve the problem of long-term sealing, it has not been popularized. The welding cycle of pipeline joints in pipeline construction projects is long, which affects the overall construction period of the project and the cost is high.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0017] Such as Figure 1-4 As shown, the hose connection flange includes a butt seal head 1, a flange pressure plate 2, a flange body 3, and a seal ring 7. The butt seal head 1 and the flange pressure plate 2 fit together, and the butt seal head 1 and the flange body 3 The cooperation between the conical surface groove 8 and the sealing inner conical surface 9 is realized, and the sealing ring 7 is arranged between the butt joint sealing head 1 and the conical surface structure of the flange body 3, and the sealing ring 7 is continuously compressed through the locking action of the locking mechanism. Sealing ring 7 realizes sealing, and sealing ring 7 is a metal sealing ring, and its texture is softer than the cone structure.

[0018] The hose connection flange installation process is as follows:

[0019] 1. Weld the flange body 3 and the hose joint; ...

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Abstract

The invention relates to a hose connection flange. The hose connection flange comprises a butt joint sealing head, a flange pressing plate, a flange body and a seal ring. The butt joint sealing head and the flange pressing plate are combined in a sleeving manner. The butt joint sealing head and the flange body are matched through conical face structures of the butt joint sealing head and the flange body. The seal ring is arranged between the conical face structures of the butt joint sealing head and the flange body. The seal ring is unceasingly compressed through the locking effect of a locking mechanism so that sealing can be achieved. By means of a sealing device formed by matching the arranged rotatable flange pressing plate with the conical face structures between the butt joint sealing head and the flange body, long-acting sealing of pipeline connection is achieved, the offshore construction time is remarkably saved, and operation and maintenance are convenient.

Description

technical field [0001] The invention relates to a hose connection flange, in particular to a connection flange for a subsea hose. Background technique [0002] At present, as the international energy crisis continues to intensify, the development of offshore oil and gas fields has been accelerated, especially the development projects of deep water oil and gas fields have been developed rapidly. For deep-water oil and gas field platforms, due to the deep water depth, long-distance subsea high-pressure hoses are required. Based on the convenience of manufacturing and maintenance, the hoses are manufactured in sections with a length of about 1,000 meters, and splicing is required for offshore installation. At present, the domestic hose construction adopts welding to splice the segmented hoses, which has a long construction period and high risks. There are many flange connections of foreign pipelines. Since the current connection of domestic hoses cannot solve the problem of lo...

Claims

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Application Information

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IPC IPC(8): F16L33/00F16L23/026
Inventor 陈伟
Owner NEPTUNE OFFSHORE ENG DEV
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