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Welding method for upper pipe and lower pipe

A welding method and pipe section technology, which is applied in the welding field of the upper pipe and the lower pipe, can solve problems such as the verticality deviation of the upper pipe and the lower pipe, and achieve the effect of reducing the verticality deviation

Pending Publication Date: 2022-03-18
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the embodiment of the present application expects to provide a welding method for the upper tube and the lower tube to solve the problem of large verticality deviation between the upper tube and the lower tube

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  • Welding method for upper pipe and lower pipe
  • Welding method for upper pipe and lower pipe
  • Welding method for upper pipe and lower pipe

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Embodiment Construction

[0042] It should be noted that, in the case of no conflict, the embodiments in the application and the technical features in the embodiments can be combined with each other. Undue Limitation of This Application.

[0043] The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The descriptions such as “first” and “second” in the embodiments of the present application are only for the purpose of description, and should not be understood as indicating or implying their relative importance or implicitly including at least one feature. In the description of the embodiments of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0044] Since the large-diameter long pipe is composed of multiple pipe sections, in order to ensure that the verticality of the large-diameter long pipe will not increase the difficulty of subsequent constr...

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Abstract

The invention discloses a welding method for an upper pipe and a lower pipe, the upper pipe comprises a first pipe section and a second pipe section, and the welding method comprises the steps that firstly, the first pipe section and the second pipe section are welded in the horizontal direction to form the upper pipe; then the upper pipe is hoisted to the lower pipe, so that the upper pipe is vertically aligned with the lower pipe; and finally, the upper pipe and the lower pipe are welded in the vertical direction. The method is easy to operate, and the perpendicularity deviation between the upper pipe and the lower pipe can be effectively reduced.

Description

technical field [0001] The present application relates to the field of welding technology, in particular to a welding method for an upper pipe and a lower pipe. Background technique [0002] When hoisting large-diameter long pipes and going downhole, the verticality will increase the difficulty of subsequent construction work due to excessive deviation and affect the installation of the next process. Therefore, the verticality control of large-diameter long pipes is indispensable. . Contents of the invention [0003] In view of this, the embodiment of the present application expects to provide a welding method for the upper pipe and the lower pipe, so as to solve the problem of large verticality deviation between the upper pipe and the lower pipe. [0004] In order to achieve the above object, the technical solution of the embodiment of the present application is achieved in this way: [0005] The embodiment of the present application discloses a welding method for an up...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00B23K101/06
CPCB23K37/00B23K2101/06
Inventor 张平柱胡石林储诚节马建艾丽斯佳叶一鸣
Owner CHINA INSTITUTE OF ATOMIC ENERGY