Bending moment resist flange plate for petroleum pipeline

A kind of oil pipeline, bending moment resistance technology, applied in flange connection, pipe/pipe joint/pipe fitting, passing element, etc., can solve the problem of pipeline leakage, weak supporting force at the joint, easy bending or breaking of the joint of the pipeline, etc. problem, to achieve the effect of improving the sealing performance

Active Publication Date: 2018-11-09
PETROTEX OIL&GAS EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, for some oil pipelines buried in the ground, when these pipelines are connected by flanges, the corresponding supporting force at their joints is relatively weak, and the weight of the

Method used

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  • Bending moment resist flange plate for petroleum pipeline
  • Bending moment resist flange plate for petroleum pipeline
  • Bending moment resist flange plate for petroleum pipeline

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] As an embodiment of the present invention, the middle part of the elastic piece 4 on the inner side of the waist-shaped hole 3 is arc-shaped protrusion; the inner side of the arc-shaped protrusion is connected by a connecting rod 41; the connecting rod 41 is provided with a vertical The adjusting rod 42 of the connecting rod 41; one end of the adjusting rod 42 is slidably mounted in the base 1; the other end of the adjusting rod 42 is fixedly connected to the middle of the elastic piece 4; the adjusting rod between the connecting rod 41 and the elastic piece 4 A cylindrical protrusion 43 is provided on 42. When working, the arc protrusions of the shrapnel 4 can be retracted inward by pushing the adjusting rod 42. After the arc protrusions of the shrapnel 4 are retracted, the position of the steel strand 9 can be moved easily. By changing the position of the anchor, Achieve different anchor strengths.

[0024] As an embodiment of the present invention, the pressing mechani...

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PUM

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Abstract

The invention belongs to the technical field of connecting devices, and particularly discloses a bending moment resist flange plate for a petroleum pipeline. The bending moment resist flange plate comprises a base body, bolt holes and waist type holes. A set of bolt holes are formed in the circumference of the base body, and two waist type holes are formed between every two bolt holes. A compression mechanism is arranged between the two adjacent waist type holes, the compression mechanism is used for dispersing the pressure of a steel strand on the base body, when anchor-pulling is performed through the two waist-shaped holes, the steel strand exerts great pressure on the base body between the two waist type holes, on the one hand, the pressure can be relieved by arranging the compressionmechanism, on the other hand, the pressure can be converted into the sealing force of a flange through the compression mechanism, and the sealing performance of a butt flange is improved. The bendingmoment resist flange plate for the petroleum pipeline is especially applicable to the connection between pipelines which need to be buried and can apply prestress to the pipelines and joints of pipelines, a soil layer is overlaid above the pipelines after being applied with prestress, and the weight of the soil layer is balanced with the applied prestress, so that the stress of the pipelines is balanced and the service life of the pipeline is prolonged.

Description

technical field [0001] The invention belongs to the technical field of connection devices, in particular to a moment-resistant flange used for oil pipelines. Background technique [0002] Flange is otherwise known as flange flange or flange. Flanges are parts that are connected to each other between pipes and are used for connection between pipe ends; they are also useful for flanges on equipment inlets and outlets, And can be used as connection between two equipments, example reducer flanges. Flange connection or flange joint refers back to the detachable connection of flange, Gasket and bolt as a team of combined sealing structure. Pipe flange refers back to the flange used for piping in the pipeline installation, And used on the equipment refers to the inlet and outlet flange of the equipment. There are holes in the flange, and the bolts tightly connect the two flanges. The flanges are sealed with gaskets. Flanges are divided into threaded (screw connection) flanges, ...

Claims

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Application Information

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IPC IPC(8): F16L23/032F16L23/024
CPCF16L23/024F16L23/032
Inventor 韦伟
Owner PETROTEX OIL&GAS EQUIP LTD
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