Pipe welding gas supply device

A pipeline and gas supply technology, which is applied in the field of welding auxiliary equipment, can solve the problem of high cost of pipeline welding gas supply, achieve the effects of shortening the time of gas supply, reducing costs, and increasing the welding speed

Active Publication Date: 2021-11-09
SHENZHEN JIALIDA ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to provide a gas supply device for pipeline welding, which aims to solve the problem of high cost of gas supply for pipeline welding in the prior art

Method used

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  • Pipe welding gas supply device

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Embodiment approach

[0034] Further, see Figure 3-Figure 4 , as another specific embodiment of the pipeline welding air supply device provided by the present application, it also includes a second support assembly 4 located between the first support assembly 3 and the air guide 2; the second support assembly 4 includes the air supply pipe 1 The connected second support frame 41 , and the second roller 42 rotatably mounted on the second support frame 41 and used to contact the inner wall of the pipeline 100 . For the pipeline 100 with a larger length, the length of the required air delivery pipe 1 also needs to be larger, so that the air guide 2 can reach the position of the weld, and the second support assembly 3 and the air guide 2 are arranged. Two support assemblies 4, that is, the second support assembly 4 is at the near end of the weld seam, the first support assembly 3 is at the far end of the weld seam, and the first support assembly 3 and the second support assembly 4 cooperate to send th...

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Abstract

The present application discloses a gas supply device for pipeline welding, which includes a gas supply pipe, a gas guide installed on the gas supply pipe, and a first support assembly connected to the gas supply pipe; the first support assembly includes a first support frame connected to the gas supply pipe, And the first roller that is rotatably installed on the first support frame and is used to contact the inner wall of the pipeline; the air guide part is provided with an air supply hole communicated with the air supply pipe. The gas source supplies protective gas such as argon to the air supply pipe. The protective gas in the air supply pipe enters the air guide and flows out through the air supply hole on the air guide. The air supply hole is aimed at the weld, so the welding torch is welded at the weld can be protected by protective gas. That is to say, the gas guide guides the shielding gas to the weld without filling the pipe with gas, thereby minimizing the waste of gas and reducing the cost, especially for pipes with large inner diameter and length On the basis of waste, it also shortens the time of gas supply, thereby increasing the welding speed.

Description

technical field [0001] The present application relates to the field of welding auxiliary equipment, in particular to a gas supply device for pipeline welding. Background technique [0002] In the field of pipeline welding, especially in the welding of stainless steel pipelines, in order to prevent oxidation at the weld, it is necessary to protect the back of the weld with argon. The existing method is to fill the pipeline with protective gas such as argon, and then seal both ends of the pipeline; this method causes a large waste of protective gas and high gas supply costs; at the same time, the long filling time in the early stage makes the welding efficiency low and cannot be welded. Meet the needs of fast welding. Contents of the invention [0003] The purpose of the present application is to provide a pipeline welding gas supply device, aiming to solve the problem of high cost of pipeline welding gas supply in the prior art. [0004] For this purpose, the application ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/14
CPCB23K20/14
Inventor 李懋陈拥军刘春阳岳光辉
Owner SHENZHEN JIALIDA ENERGY SAVING TECH CO LTD
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