Portable rapid weld joint preheating equipment

Abstract

The utility model discloses a portable rapid weld preheating device which comprises a heating pipe, the side face of the heating pipe is connected with a gas collector through a drainage pipe, a gas inlet of the gas collector is connected with a steel wire hose, and a plug valve, a backfire arrestor, a gas pressure gauge and an adjusting valve are sequentially installed on the steel wire hose. And a plurality of heating holes are formed in the heating pipe. The device is scientific and reasonable in structural design, adopts flames to preheat welding seams by arranging structures such as the heating pipe, the gas collector, the drainage pipe, the steel wire hose and the backfire preventer which are matched for use, is high in preheating speed and saves welding time, and in addition, different types of heating pipes can be configured according to the positions, angles, lengths and the like of the welding seams, so that the welding efficiency is improved. The rapid weld preheating device is light in weight, few in corollary equipment and convenient to install and transport.

Description

Technical Field

[0001] The utility model relates to the technical field of welding seam equipment, in particular to a portable rapid preheating welding seam equipment. Background Art

[0002] A weld is a seam formed by melting the electrode and the metal at the joint using the high temperature of the welding heat source. After the weld metal cools, the two welds are connected into a whole. Depending on the shape of the weld metal and the relative position of the welds, there are butt welds, fillet welds, plug welds and electric riveting, etc. However, it is currently inconvenient to preheat the joints when performing plate welding. Currently, weld preheating mostly uses crawler-type electric heating plates (plates). Crawler-type heating plates (plates) are heavy and inconvenient to carry. The surface ceramic tiles are easily damaged. Multiple sets of heating plates are required for heating, which is inconvenient to carry and the heating speed is not as fast as flame heating. To this end, we propose a portable rapid preheating weld equipment. Utility Model Content

[0003] The utility model aims to provide a portable rapid preheating welding seam device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable rapid preheating weld equipment, comprising a heating tube, the side of the heating tube is connected to a gas collector through a drainage tube, the air inlet of the gas collector is connected to a steel wire hose, a plug valve, a backfire preventer, a gas pressure gauge, and a regulating valve are sequentially installed on the steel wire hose, and a plurality of heating holes are opened on the heating tube.

[0005] In the above solution, an air inlet is provided on the side of the air collector.

[0006] In the above scheme, the drainage tube is threadedly connected to the gas collector, and the length of the drainage tube inserted into the heating tube is adjustable.

[0007] In the above solution, the steel wire hose is a gas pipeline.

[0008] In the above solution, the air inlet of the steel wire hose is connected to the gas supply equipment.

[0009] In the above solution, the end of the heating tube is sealed.

[0010] Compared with the prior art, the beneficial effects of the utility model are: this portable rapid preheating weld equipment has a simple and reasonable structural design and strong practicality. By setting up the matching heating tubes, gas collectors, drainage tubes, steel wire hoses, backfire preventers and other structures, this device uses flame to preheat the weld, with a fast preheating speed and saves welding time. In addition, different types of heating tubes can be configured according to the weld position, angle, length, etc. The rapid preheating weld device is light in weight, has few supporting equipment, and is easy to install and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model.

[0012] Figure 2 This is a schematic diagram of the drainage tube structure of the utility model.

[0013] In the figure: 1, heating tube 11, gas collector 12, drainage tube 13, wire hose 14, stopcock 15, flashback arrester 16, gas pressure gauge 17, regulating valve 18, heating hole. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-2 The utility model provides a technical solution: a portable rapid preheating welding seam equipment, comprising a heating tube 1, the side of the heating tube 1 is connected to a gas collector 11 through a drainage tube 12, the air inlet of the gas collector 11 is connected to a steel wire hose 13, a plug valve 14, a flashback preventer 15, a gas pressure gauge 16, and a regulating valve 17 are sequentially installed on the steel wire hose 13, and a plurality of heating holes 18 are opened on the heating tube 1.

[0016] A row of heating holes 18 are punched on the heating tube 1, and the gas is discharged from the holes and ignited by an external auxiliary mechanism to ignite the gas to form a row of flame heating zones. The heating tube is placed at the weld to heat the weld.

[0017] The drainage pipe 12 introduces the gas into the heating pipe 1. The drainage pipe 12 and the gas collector 11 are threadedly connected. The length of the drainage pipe 12 inserted into the heating pipe 1 is adjustable. The gas collector 11 is used to supplement air for combustion. The distributor is provided with an air inlet hole where the drainage pipe 12 is installed. During combustion, the gas flows and enters the air from the inlet hole to meet the lack of air during combustion. The steel wire hose 13 is a gas pipeline, the plug valve 14 is used to adjust the gas flow, the backfire preventer 15 prevents backfire, and the pressure regulating valve 17 is used to adjust the gas inlet pressure. The gas pressure gauge 16 displays the gas pressure.

[0018] In the above scheme, an air inlet is provided on the side of the gas collector 11. Air enters the gas collector 11 from the air inlet. During combustion, the gas flows and enters the air from the inlet hole to meet the air shortage during combustion.

[0019] In the above scheme, the drainage tube 12 is threadedly connected to the gas collector 11, and the length of the drainage tube 12 inserted into the heating tube 1 is adjustable. Specifically, a threaded connection portion is provided on the outside of the drainage tube 12, and an internal threaded portion is provided in the opening of the gas collector 11, so that a spiral connection is formed between the drainage tube 12 and the gas collector 11, and the relative length of the drainage tube 12 and the gas collector 11 can be adjusted by manual adjustment.

[0020] In the above solution, the steel wire hose 13 is a gas pipeline.

[0021] In the above solution, the air inlet of the steel hose 13 is connected to the gas supply equipment.

[0022] In the above solution, the end of the heating tube 1 is sealed.

[0023] Working principle:

[0024] When this portable rapid weld preheating equipment is in use, the gas enters the gas collector 11 through the steel wire hose 13 and is distributed and then enters the heating tube 1. A row of heating holes 18 are punched on the heating tube 1, and the gas is discharged from the holes and ignited by an external auxiliary mechanism. The gas is ignited to form a row of flame heating areas, and the heating tube is placed at the weld to heat the weld. By setting up the heating tube 1, gas collector 11, drainage tube 12, steel wire hose 13, backfire preventer 15 and other structures for use in conjunction, this device uses flame to preheat the weld, with a fast preheating speed and saves welding time. In addition, different types of heating tubes can be configured according to the weld position, angle, length, etc. The rapid weld preheating device is light in weight, requires less supporting equipment, and is easy to install and transport.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable rapid preheating welding seam device, comprising a heating tube (1), Features: The side of the heating tube (1) is connected to the gas collector (11) through a drainage tube (12); the air inlet of the gas collector (11) is connected to a steel hose (13); a stopcock (14), a flashback preventer (15), a gas pressure gauge (16), and a regulating valve (17) are sequentially installed on the steel hose (13); and a plurality of heating holes (18) are provided on the heating tube (1).

2. A portable rapid preheating welding seam device according to claim 1, Features: An air inlet is provided on the side of the air collector (11).

3. A portable rapid preheating welding seam device according to claim 1, Features: The drainage tube (12) and the gas collector (11) are threadedly connected, and the length of the drainage tube (12) inserted into the heating tube (1) is adjustable.

4. A portable rapid preheating welding seam device according to claim 1, Features: The steel wire hose (13) is a gas pipeline.

5. A portable rapid preheating welding seam device according to claim 1, Features: The air inlet of the steel hose (13) is connected to a gas supply device.

6. A portable rapid preheating welding seam device according to claim 1, Features: The end of the heating tube (1) is sealed.

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