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Pipe repair system and device

A technology for pipelines and sealing devices, applied in the direction of pipe components, pipes/pipe joints/fittings, connections with fluid pressure for packing seals, etc.

Inactive Publication Date: 2005-08-24
GLOWAY INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It is therefore an object of the present invention to provide a repair system and a pipe joint used in such a repair system, which can solve the above-mentioned problems, and even under various extreme conditions, traditional repairs are limited to access or rupture pipes Fast and permanent repair of ruptured pipes where surface corrosion is beyond the reach of conventional repair systems

Method used

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  • Pipe repair system and device
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  • Pipe repair system and device

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] figure 1 and 2 The pipe joint comprises a generally frusto-conical sleeve portion 1 extending from a first journal 2 to a second journal 3 . As described in European patent EP-B-727026, during use, this first journal 2 is intended to surround a new pipe section. Formed on the inner surface of the journal 2 is an annular groove 10 which accommodates a circular row of arcuate pipe clips 11 surrounded by a seal 12 . A hydraulic chamber 13 is formed between the sealing member 12 and the inner peripheral surface of the ring groove 10 , and high-pressure grease can be applied through a grease nipple 14 for pressurization. It is necessary that the drain valve 15 is offset by 90° from the grease nipple 14 so that the pressure can be released from the hydraulic chamber 13 . A row of arcuate gaskets (not shown) is arranged between the seal 12 and the arcuate pipe clamp 11, and each spacer overlaps the gap between adjacent arcuate pipe clamps, thereby preventing the seal 12 fro...

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PUM

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Abstract

The invention provides a coupling member for use in the repair of pipes and pipelines of from 90mm to 250mm in diameter, such as those used for the pipeline transportation and delivery of domestic and / or industrial liquids such as water, gas, oil and other petrochemicals. Two coupling members are used for each repair. Each has a first collar portion for surrounding the new pipe section and a second collar portion for surrounding a cut end portion of the old pipe section, and the two pipe connectors are located with their respective first collar portions adjacent to one another and their respective second collar portions facing mutually outwardly towards the opposite ends of the new pipe section. Pressure chambers are formed between the annular grooves and the seal members of the first collar portions and between the annular grooves and the nitrile rubber sealing rings of the second collar portions.

Description

technical field [0001] The present invention relates to a system and apparatus for quickly and permanently repairing broken sections of pipelines carrying domestic and / or industrial fluids such as water, gas, oil and other petrochemicals. Background technique [0002] The above-mentioned domestic and / or industrial fluids are usually transported underground or above ground through pipelines, and the size of the pipelines ranges from 90mm to 250mm. These pipes are usually made of plastic, steel or ductile iron, and the fluids mentioned above can be conveyed under pressure, usually up to 100 BAR. Especially when pipelines are buried underground, there is a risk of pipeline rupture due to corrosion (especially metal pipelines) or loosening of the soil. In climates with extreme temperatures, pipes may rupture due to frost. When a pipe or line breaks, it must be repaired as quickly as possible. Ideally, this restoration should be a permanent restoration so that, especially with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L17/03F16L17/10F16L55/18
CPCF16L17/10F16L25/14F16L37/62F16L37/00
Inventor 丹尼尔·格雷哈姆·鲍尔
Owner GLOWAY INT INC
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