Automatic welding gun head for tube-shell thin tube plate embedded deep hole welding

An embedded, automatic welding technology, applied in the characteristics of electrodes, welding equipment, arc welding equipment, etc., can solve the problems of inconvenient manual operation, poor performance, and the quality of welding seam is affected by the level of welders, and achieve the effect of preventing welding penetration.

Inactive Publication Date: 2017-05-31
THE CHALLENGE PETROCHEM MACHINERY CORP
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] At present, argon arc manual welding is generally used for the shell-and-shell thin tube plate deep-hole welding structure. However, due to the poor accessibility of welding the shell-and-shell thin tube plate deep-hole welding structure, manual operation is extremely inconvenient, and the quality of the weld is limited by the level of the welder. Therefore, how to obtain high-quality pipe head welds has become a key breakthrough point in the manufacture of process gas boilers

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  • Automatic welding gun head for tube-shell thin tube plate embedded deep hole welding
  • Automatic welding gun head for tube-shell thin tube plate embedded deep hole welding

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Embodiment Construction

[0035] The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

[0036] A kind of automatic welding torch head of this embodiment is used for embedded deep hole welding of shell-and-shell type thin tube plate, and this automatic welding torch head is mainly used for deep hole welding, as figure 1 As shown, the automatic welding torch head includes an introduction cavity 1, an insulating cavity 2 and a nozzle assembly, the introduction cavity 1 is made of stainless steel, the insulation cavity 2 is made of insulating Bakelite, and the left end of the insulation cavity 2 is connected to the introduction cavity The end of the tube 1 is threaded, so that the length of the torch head is lengthened by introducing the tube 1 into the cavity, so as to facilitate deep hole welding in the air inserted into the tube sheet.

[0037] Such as figure 1 and figure 2 As shown, the cavity at the right end of the insulating c...

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Abstract

The invention discloses an automatic welding gun head for tube-shell thin tube plate embedded deep hole welding. The structure comprises a guide cavity tube, an insulation cavity tube and a nozzle module; one end of the insulation cavity tube is fixedly connected with the end part of the guide cavity tube; the length of the welding gun head is elongated through the guide cavity tube to conveniently realize deep hole welding of a tube plate; a copper base is fixedly connected into a cavity at the other end of the insulation cavity tube, and is fixedly connected with the nozzle module; the nozzle module includes a tungsten pole; a tip part of the tungsten pole includes a first smoothing angle and a second smoothing angle; the second smoothing angle is larger than the first smoothing angle; and the double smoothing angles of the tip of the tungsten pole can centralize arcs to facilitate quick through welding of the tube plate and a heat exchange tube. The automatic welding gun head further comprises an arc pressure tracker; and the arc pressure tracker can detect the arc voltage change during welding to adjust the position of the tungsten pole so as to effectively prevent the through welding phenomenon under the condition of through welding as far as possible.

Description

technical field [0001] The invention relates to the technical field of an automatic welding torch head used for boiler equipment welding in the fields of petroleum and coal chemical industry, in particular to an automatic welding torch head for embedded deep hole welding of shell-type thin tube sheets. Background technique [0002] Energy saving is one of the key factors for a country's sustainable development. Traditional energy saving methods cannot effectively recycle resources, which will aggravate the deterioration of the entire resource environment of society and cause rapid depletion of energy. The process gas boiler adopts a new energy-saving method that can recycle resources. The specific method is that the boiler uses the heat in the process gas generated in various industrial processes to heat the water to the required level. The process gas boiler is currently An important device for energy recycling. [0003] At present, there are generally welding and expansio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/28B23K9/26B23K9/167
CPCB23K9/167B23K9/26B23K9/28B23K9/285
Inventor 黄嗣罗张浩帆吴恩覃林银善武红明
Owner THE CHALLENGE PETROCHEM MACHINERY CORP
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