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A 5m-diameter weakly rigid, small-diameter manhole storage tank sealing ring seam welding method

A weak rigidity, small diameter technology, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of inability to apply 5M diameter tank sealing welding, weak rigidity, etc.

Active Publication Date: 2016-09-21
CHINA ACAD OF LAUNCH VEHICLE TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the 5M diameter storage tank only has a small diameter manhole flange on the front bottom, and the original sealing welding method cannot be applied to the sealing welding of the 5M diameter storage tank. , Small-diameter manhole storage tank sealing ring seam welding method

Method used

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  • A 5m-diameter weakly rigid, small-diameter manhole storage tank sealing ring seam welding method
  • A 5m-diameter weakly rigid, small-diameter manhole storage tank sealing ring seam welding method
  • A 5m-diameter weakly rigid, small-diameter manhole storage tank sealing ring seam welding method

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Embodiment Construction

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] figure 2 It is a schematic flow chart of a 5M-diameter weakly rigid and small-diameter manhole tank sealing girth seam welding method provided by an embodiment of the present invention. Such as figure 2 As shown, the method includes:

[0023] Step 101: Evenly arrange a plurality of thrust angle pieces in the circumferential direct...

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Abstract

The embodiment of the invention provides a welding method for a sealing girth of a storage tank with the diameter of 5M, weak rigidity and a small-diameter manhole. According to the welding method, high-efficiency sealing welding can be realized, and an inner supporting device for supporting a tank body is enabled to retract from a manhole flange. The welding method for the sealing girth of the storage tank with the diameter of 5M, the weak rigidity and the small-diameter manhole comprises the following steps: uniformly arranging a plurality of thrust angle plates in the circumferential direction of the inner surface, close to the sealing girth, of the front bottom, wherein each thrust angle plate comprises a circumferential thrust sheet (1) and a radial thrust sheet (2); conveying the inner supporting device of a detachable rod system in the front bottom through the manhole flange on the front bottom and assembling to form, wherein the inner supporting device of the detachable rod system comprises a plurality of inner supporting blocks; butting the front bottom with a cylinder section, and rounding the inner supporting device of the detachable rod system, wherein each inner supporting block is correspondingly attached to the circumferential thrust sheet (1) of one thrust angle plate; welding the sealing girth between the front bottom and the cylinder section.

Description

technical field [0001] The invention relates to the field of welding, in particular to a sealing girth seam welding method for a 5M-diameter weakly rigid and small-diameter manhole storage tank. Background technique [0002] The 5-meter-diameter storage tank of the new-generation launch vehicle is welded together by the front bottom, the front short shell, the middle barrel section, the rear bottom, and the rear short shell. figure 1 shown. The welding sequence is the welding of the front short shell and the front bottom (the frame is removed after welding, called the front bottom assembly) → the rear short shell and the rear bottom are welded (after the welding is called the rear bottom assembly) → the rear bottom assembly and Welding of the middle barrel section → welding between the middle barrel sections → welding of the last barrel section and the front bottom assembly (sealing welding). Among them, the front bottom / rear bottom is welded by the transition ring, the ri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/028B23K37/053
CPCB23K9/0026B23K9/028B23K37/0426B23K37/0531B23K2101/12
Inventor 孟凡新刘宪力邱龙高培涛杜岩峰张中平褚晓宾蒙丹阳
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
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