Hydraulic pipeline inner butt-jointing device

It is a hydraulic-type technology with internal counterparts, which is applied in the direction of auxiliary devices, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., and can solve problems such as inability to achieve nozzle shaping, failure to meet welding construction requirements, and poor nozzle quality. To achieve the effect of light weight, simple structure, and large jacking force

Inactive Publication Date: 2009-07-15
冯岩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings that the existing internal counterparts cannot realize nozzle shaping, and the quality of the formed nozzles is poor, which cannot meet the requirements of welding construction.

Method used

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  • Hydraulic pipeline inner butt-jointing device
  • Hydraulic pipeline inner butt-jointing device
  • Hydraulic pipeline inner butt-jointing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: Taking a hydraulic pipe internal counterpart that can be applied to a welded pipe with an inner diameter of 711 mm as an example, further description will be given in conjunction with the accompanying drawings.

[0037] refer to figure 1 . The structure of the housing 6 is a cylinder welded by stepped steel plates, and the rear portion of the housing 6 is a cylinder with an internal diameter of 300 mm and a length of 700 mm. The front portion of the housing 6 is a cylinder with an internal diameter of 680 mm and a length of 400 mm. The front end of the large diameter cylinder is welded into a cone shape. It is composed of welded steel plates with a thickness of 8 mm, a hydraulic power station part, a sliding mechanism, an expanding mechanism, and a walking and righting mechanism.

[0038] In the rear end of the housing 6 there is a cylinder cover 4 , and the cylinder cover 4 can slide in the housing 6 . A hydraulic cylinder 5 is arranged in the hydraul...

Embodiment 2

[0050] Embodiment 2: The difference from Embodiment 1 is that 24 pin plates 37 are fixed on the outer walls of the rear sliding sleeve 9 and the front sliding sleeve 17, and the number of expansion mechanisms is 24.

Embodiment 3

[0051] Embodiment 3: The difference from Embodiment 1 is that 36 pin plates 37 are fixed on the outer walls of the rear sliding sleeve 9 and the front sliding sleeve 17, and the number of expansion mechanisms is 36.

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PUM

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Abstract

The invention relates to a hydraulic type aligning device inside a pipeline, which is used for the welding construction of a long-distance oil and gas transporting pipeline and mainly comprises a shell, a hydraulic power station, a sliding mechanism, an expanding mechanism, a running mechanism and a straightening mechanism. Furthermore, the hydraulic type aligning device inside a pipeline is characterized in that a jacket of a hydraulic station is internally fixed with the hydraulic power station, a jacket of a liquid tank is internally provided with a hydraulic cylinder, a main shaft is sleeved with a rear sliding sleeve and a front sliding sleeve, and the other end of a traction frame is fixed to the end part of the rear sliding sleeve. Furthermore, the rear sliding sleeve is driven by the hydraulic cylinder to reciprocate on the main shaft, each sliding sleeve adopts an articulated axle fixed with two main top plates and a parallel top plate, an isoceles triangle is formed by the two main top plates, and the parallel top plate is fixed with two support pillars and a jacking. The invention can realize pipe opening alignment, stable and reliable positioning, large pushing force and pipe opening shaping, and can slightly adjust the lifting height and enhance the centric precision of fitted up pipe openings. In addition, the invention has light weight, low price and simple structure.

Description

technical field [0001] The invention relates to the technical field of pipeline construction, in particular to the technical field of welding construction of long-distance oil and gas pipelines, and relates to a hydraulic pipeline internal counterpart for welding pipelines. Background technique [0002] Pipeline transportation has become an emerging fluid transportation industry is booming. And the pipeline must be connected through welding one by one when the pipeline is welded. In order to ensure the quality of welding, the first thing to solve is that the nozzles are aligned and the positioning is stable and reliable. A variety of counterparts have been used in pipeline welding at home and abroad. [0003] The counterparts used in pipeline welding construction are mainly divided into two types: external counterparts and internal counterparts. The function of the external mouthpiece is to align the ends of the two pipes that need to be welded from the outside of the pip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/047
Inventor 冯岩
Owner 冯岩
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