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Marine engineering equipment complex pipeline welding spatial position determination method

A method for determining welding space and a technology for welding space are applied in the field of determining the position of welding space for complex pipelines, and can solve problems such as problems in welding work of marine engineering equipment.

Active Publication Date: 2014-07-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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Problems solved by technology

In the process of assembly and welding, due to the relationship between the length dimension and the space angle, the position of the end of the pipe after passing through several processes usually has a large error, and some of them cannot even be connected with the target butt joint, which gives The welding work of offshore equipment brings huge problems

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  • Marine engineering equipment complex pipeline welding spatial position determination method
  • Marine engineering equipment complex pipeline welding spatial position determination method
  • Marine engineering equipment complex pipeline welding spatial position determination method

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Embodiment Construction

[0020] A method for determining the welding spatial position of complex pipelines of marine engineering equipment proposed by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] A method for determining the welding space position of complex pipelines of marine engineering equipment disclosed by the present invention includes the following steps:

[0022] 1) According to the design drawings, determine the total length L of the pipeline, the number of straight pipe sections m, and the number n of arc bend pipe sections; all straight pipes are straight and the length is L i , i=1,2,...,m, all elbows are arcs conforming to the arc characteristics, and the radius of the arc is R j , j=1,2,...,n, the corresponding central angle is δ j , j=1,2,...,n, the chord length corresponding to the arc can be calculated; as long as the angular relationship between the chord and each coordinate axis is determined, the spatial position ...

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Abstract

The invention discloses a marine engineering equipment complex pipeline welding spatial position determination method. According to the method, a cutting plane of a pipeline is horizontally moved along the center line of the pipeline and is rotated around the center line of the pipeline, the spatial position of the tail end of the pipeline is determined in space, and therefore accurate data information can be provided for the pipeline welding process to be used for guiding assembling and welding of the marine engineering equipment pipeline. According to the method, what is only needed is to measure, carry out modeling and calculate linear pipes and arc pipes forming a spatial piping system, the spatial position where the terminal point of the pipeline is located can be determined, and the method is simple, easy to implement and suitable for marine assembling operation of marine engineering equipment.

Description

technical field [0001] The invention belongs to the technical field of marine equipment pipeline installation, in particular to a method for determining the welding space position of complicated pipelines. Background technique [0002] In September 2011, the National Development and Reform Commission, the Ministry of Science and Technology and other four ministries and commissions jointly issued the "Notice on Printing and Distributing the Innovation and Development Strategy of the Offshore Engineering Equipment Industry (2011-2020)", which upgraded the innovation and development of the Offshore Engineering Equipment Industry to a national strategy. In the manufacturing process of offshore engineering equipment, a large part of the products are pipeline facilities. The pipeline can be decomposed into various straight pipes, arc pipes, U-shaped pipes, and T-shaped pipes. The geometric characteristics of each section of pipe are simple and clear. During the prefabrication pro...

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Application Information

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IPC IPC(8): G06F17/50G06F19/00
Inventor 薛建彬楼佩煌章合滛马万太陈蔚芳
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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