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Structural pipe prefabricating method

A prefabricated structure, steel plate technology, applied in the direction of manufacturing tools, arc welding equipment, welding equipment, etc., can solve the problems of increasing operation risks, increasing operation procedures and equipment investment, and many procedures, and reducing the end mouth cutting process, The effect of improving the efficiency of construction production and simplifying the construction process

Inactive Publication Date: 2020-12-01
OFFSHORE OIL ENG QINGDAO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing construction method has many processes, and there are many ring welds in the long butt joint work, the construction strength is high, and the straightness and longitudinal weld bead positioning accuracy are high. The main disadvantages of this method are as follows: the butt joint length and welding of the single-section pipe group are additionally added. The construction process wastes construction resources, reduces construction efficiency, and increases operational risks; the work of pipe port cutting requires professional equipment, which increases the operating process and equipment investment

Method used

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  • Structural pipe prefabricating method
  • Structural pipe prefabricating method
  • Structural pipe prefabricating method

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0021] Such as Figure 1 to Figure 6 As shown, a structural tube prefabrication method includes the following steps:

[0022] S100, according to the design drawing of the specification and size of the structural pipe 1, the steel plate is blanked and cut to make a pre-steel plate 10;

[0023] S200, after centering and aligning the pre-steel plate 10 in S100, cutting the four edges of the pre-steel plate 10, wherein the pre-steel plate 10 is hoisted and tiled on the data cutting frame for centering and alignment, and The four ed...

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Abstract

The invention discloses a structural pipe prefabricating method. The method comprises the following steps: blanking and cutting a steel plate according to a design drawing of the specification and size of a structural pipe to manufacture a prefabricated steel plate; after the prefabricated steel plate is centered and aligned, cutting the four plate edges of the prefabricated steel plate; pressingthe prefabricated steel plate pass by pass with a bending machine, so that straight welding pass joint closing of the prefabricated steel plate meets the welding process requirement, and performing final closing to obtain a to-be-welded prefabricated structural pipe; performing joint closing and correction treatment on the prefabricated structural pipe; and performing straight welding pass weldingon the prefabricated structural pipe to complete prefabrication of the structural pipe. According to the structural pipe prefabricating method, the construction procedures of the structural pipe aregreatly reduced, the construction and manufacturing efficiency is improved, and the operation risk is reduced.

Description

technical field [0001] The invention relates to the technical field of offshore oil engineering, in particular to a method for prefabricating structural pipes. Background technique [0002] In offshore oil engineering construction projects, structural pipes are divided into rolled pipes and finished pipes, and the present invention only targets the prefabrication process of rolled pipes. The existing coiled pipes are all cut by blanking of steel plates, and cold-rolled by a three-roller plate rolling machine to make pipe sections one by one (limited by the capacity of the plate rolling machine, the current length of a single section of rolled pipe section is 3 meters), according to the required volume The length of the pipes is butt welded one by one, and then the saddle mouth CNC cutting machine is used to cut the corresponding saddle mouth, also called the intersection mouth, which is finally used in the construction of the on-site project. The existing construction metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/18B23K9/32
CPCB23K9/18B23K9/32
Inventor 汪春标张耀庄宏昌孙士龙李志强何小超刘凯
Owner OFFSHORE OIL ENG QINGDAO
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