High-frequency arc striking argon arc welding torch suitable for thermal power plant

Abstract

The utility model discloses a high-frequency arc-striking argon arc welding torch suitable for a thermal power plant, which comprises a high-frequency arc-striking switch arranged on the argon arc welding torch and connected with a welding machine through a high-frequency arc-striking switch control line; wherein the argon arc welding torch is connected with the protective gas rubber tube through the gas flow regulating valve. According to the argon arc welding torch, the high-frequency arc striking switch is additionally arranged on the argon arc welding torch, so that the problem that arc striking and arc extinguishing are inconvenient during welding is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the electric power industry boiler construction installation, boiler overhauls welding equipment technical field, especially related to a high frequency arc starting argon arc welding torch suitable for the use of thermal power plant. BACKGROUND

[0002] The argon arc welding torch used in the original electric power industry, in order to overcome the limited operation radius, usually only lengthens the welding secondary cable and the protective gas rubber tube, and such measures make the arc starting and arc collecting inconvenient during welding, which easily produces pores and shrinkage holes, and also easily causes arc burn on the surrounding pipeline, leaving equipment hazards. CONTENT OF THE UTILITY MODEL

[0003] In view of the above technical problems, the utility model provides a high frequency arc starting argon arc welding torch suitable for the use of thermal power plant.

[0004] In order to realize the above purpose, the technical scheme of the utility model is as follows:

[0005] A high frequency arc starting argon arc welding torch suitable for the use of thermal power plant, comprising:

[0006] The high frequency arc starting switch is arranged on the argon arc welding torch, and is connected with the welding machine through a high frequency arc starting switch control line;

[0007] The argon arc welding torch is connected with the protective gas rubber tube through a gas flow regulating valve.

[0008] The high frequency arc starting switch control line is connected with the welding machine through an aviation plug.

[0009] The argon arc welding torch and the gas flow regulating valve are connected in a spiral compression mode.

[0010] The utility model has the advantages of:

[0011] 1、The utility model can control the arc starting and arc collecting through the high frequency arc starting switch, the high frequency arc starting switch control line and the aviation plug during the welding process, and the arc starting caused by the mistaken contact with the metal can be avoided, and the "wandering eye" black vision phenomenon can be avoided, and the arc burn risk of the pipeline near the welding area can be avoided.

[0012] 2、The gas flow regulating valve of the utility model can adjust the argon flow provided by the protective gas rubber tube through the regulating valve, and the protective gas does not pass through the electromagnetic valve of the welding machine, so that the "gas holding" phenomenon after the electromagnetic valve is turned on can be avoided.

[0013] 3, the utility model discloses high -frequency arc -starting switch control line is connected with welding machine through aviation plug, can realize the quick connection of high -frequency arc -starting switch and welding machine, and the argon arc welding torch and gas flow regulating valve adopt the connection of spiral compression mode, make things convenient for the quick detachable quick installation of argon arc welding torch and gas flow regulating valve, can also improve the airtightness of junction simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0014] The specific embodiments of the utility model will be further described in detail below with reference to the drawings.

[0015] Figure 1 It is the schematic diagram of the utility model;

[0016] In the drawing: 1, argon arc welding torch; 2, high-frequency arc starting switch; 3, high-frequency arc starting switch control line; 4, gas flow regulating valve; 5, aviation plug. DETAILED DESCRIPTION

[0017] To make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model will be further explained in detail below in conjunction with specific embodiment and referring to the drawings. It should be understood that these descriptions are only exemplary, and not to limit the scope of the utility model. In addition, in the following description, the description of known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0018] As Figure 1 Shown in a kind of high-frequency arc starting argon arc welding torch suitable for thermal power plant, including: high-frequency arc starting switch 2, it is set on argon arc welding torch 1, it is connected with welding machine by high-frequency arc starting switch control line 3;Wherein, argon arc welding torch 1 is connected with protective gas rubber tube by gas flow regulating valve 4.The high-frequency arc starting switch control line 3 is connected with welding machine by aviation plug 5, the argon arc welding torch 1 and gas flow regulating valve 4 adopt the connection of spiral compression mode.

[0019] The utility model in use, first protective gas rubber tube is connected with gas flow regulating valve 4 when using, high-frequency arc starting switch 2 is installed and fixed on argon arc welding torch 3 handle, then high-frequency arc starting switch 2 is connected with high-frequency arc starting switch control line 3, then connected with aviation plug 5, finally aviation plug 5 is connected with WS series welding machine, realize arc starting and arc receiving in the welding process using high-frequency arc starting switch 2.

[0020] The utility model operation radius is not influenced by argon arc welding torch 1 own length, length can reach 3-30 meters, operation radius is big, and adaptability is strong, and traditional finished product high-frequency arc starting argon arc welding torch is all about 3-5 meters, operation radius is limited, not applicable to thermal power plant superheater, reheater, economizer overhaul, and argon arc welding torch 1 is deflection torch, adaptability is extremely strong, can be angle-adjusted to argon arc welding torch gun head according to welding position.

[0021] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high frequency arc starting argon arc torch suitable for use in a fossil fuel power plant, characterized in that, The utility model relates to an argon arc welding torch, which comprises: a high-frequency arc starting switch (2) arranged on an argon arc welding torch (1) and connected with a welding machine through a high-frequency arc starting switch control line (3); wherein the argon arc welding torch (1) is connected with a protective gas hose through a gas flow regulating valve (4).

2. The high frequency arc starting argon arc torch according to claim 1, wherein The high-frequency arc starting switch control line (3) is connected with the welding machine through an aviation plug (5).

3. The high frequency arc starting argon arc torch according to claim 1, wherein The argon arc welding torch (1) and the gas flow regulating valve (4) are connected in a screw pressing mode.

Images