CN219520946U - Air-cooled welding repair gun - Google Patents

Abstract

The utility model provides an air-cooled welding repair gun, which comprises a welding repair gun body, wherein the welding repair gun body comprises an outer pipe and an inner pipe arranged in the outer pipe, an air channel is formed between the inner pipe and the outer pipe, a partition plate connected with the outer wall of the inner pipe and the inner wall of the outer pipe is arranged in the air channel, the partition plate of the air channel is used for partitioning to form an air inlet channel and an air outlet channel which are mutually communicated, and one side of the outer pipe is connected with an air inlet pipe communicated with the air inlet channel; the utility model has the following beneficial effects: the utility model is composed of an outer pipe and an inner pipe, a partition plate in the middle of the two layers divides the space between the outer pipe and the inner pipe into an air inlet channel and an air outlet channel, low-temperature compressed air enters the air inlet channel from an air inlet of the gun tail, enters the air outlet channel from a gun head, is discharged from an air outlet of the gun tail, and absorbs heat on the outer surface of the welding repair gun by utilizing the low-temperature compressed air and discharges the heat along with the low-temperature compressed air, so that the inner pipe is ensured to be at a safe temperature, and the welding repair gun body can work normally.

Description

Air-cooled welding repair gun

Technical Field

The utility model relates to the technical field of repair welding guns, in particular to an air-cooled repair welding gun.

Background

The ceramic repair welding can also be called refractory repair welding, which is a brand new technology for the thermal state maintenance of an industrial furnace, effectively prolongs the service life of the furnace, greatly reduces the production cost of enterprises, is applied to the fields of coking, glass industry, cement, chemical steel, nonferrous metal smelting and the like, and the ceramic repair welding gun sprays a mixture of the repair welding material and oxygen mixed in a repair welding machine onto the refractory lining of the furnace, which is required to be repaired, and is used in a high-temperature environment, and the repair welding gun is required to be forcibly cooled because of extremely easy explosion of the mixture of the repair welding material and the oxygen.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide an air-cooled repair welding gun for solving the problem of low cooling efficiency in the prior art.

To achieve the above and other related objects, the present utility model provides an air-cooled repair welding gun, including a repair welding gun body, the repair welding gun body includes an outer tube and an inner tube disposed in the outer tube, an air channel is formed between the inner tube and the outer tube, a partition plate connected to the outer wall of the inner tube and the inner wall of the outer tube is disposed in the air channel, the partition plate of the air channel partitions the air inlet channel and the air outlet channel which are mutually communicated, one side of the outer tube is connected with an air inlet pipe which is communicated with the air inlet channel, an air inlet is disposed at an end of the air inlet pipe, and an air outlet which is communicated with the air outlet channel is disposed at the other side of the outer tube opposite to the air inlet pipe.

In an embodiment of the present utility model, a welding repair material channel is disposed in the inner tube, a feed inlet communicated with the welding repair material channel is disposed at one end of the inner tube, and a discharge outlet communicated with the welding repair material is disposed at the other end of the inner tube.

In an embodiment of the utility model, a gun head communicated with the welding repair material channel is arranged at one end of the outer tube, and a detachable nozzle is arranged in the gun head, wherein when the nozzle is severely worn, a worker can replace the nozzle.

In an embodiment of the present utility model, an end plate for blocking the air channel is installed at the other end of the outer tube opposite to the gun head, wherein a through hole for passing through the inner tube is formed at the center of the end plate.

In an embodiment of the present utility model, the outer tube and the inner tube are both circular, and the outer tube is made of stainless steel, wherein the stainless steel has the characteristics of excellent corrosion resistance, formability, compatibility, toughness, and the like.

As described above, the air-cooled welding repair gun has the following beneficial effects:

the utility model is composed of an outer pipe and an inner pipe, a partition plate in the middle of the two layers divides the outer pipe and the inner pipe into an air inlet channel and an air outlet channel, low-temperature compressed air enters the air inlet channel from an air inlet of a gun tail, enters the air outlet channel from a gun head and is discharged from an air outlet of the gun tail, the low-temperature compressed air is utilized to absorb heat on the outer surface of the welding repair gun and enable the heat to be discharged along with the low-temperature compressed air, the inner pipe is ensured to be at a safe temperature, so that the welding repair gun body can work normally, and the welding repair gun body is cooled by using the low-temperature compressed air.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of an air-cooled repair welding gun according to an embodiment of the present utility model.

FIG. 2 is a schematic top view of an air-cooled repair gun according to an embodiment of the utility model.

FIG. 3 is a schematic left-view cross-section of an air-cooled repair welding gun according to an embodiment of the utility model

Description of element reference numerals

1. A welding repair gun body; 2. an outer tube; 3. an inner tube; 4. a feed inlet; 5. a discharge port; 6. a partition plate; 7. an air inlet pipe; 8. an air inlet; 9. an air outlet; 10. an end plate; 11. a gun head; 12. and (3) a nozzle.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Please refer to fig. 1 to 3. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

Referring to fig. 1 to 3, the present utility model provides an air-cooled repair welding gun, which comprises a repair welding gun body 1, wherein the repair welding gun body 1 comprises an outer tube 2 and an inner tube 3 arranged in the outer tube 2, the outer tube 2 and the inner tube 3 are both round, the outer tube 2 is made of stainless steel, wherein the stainless steel has the characteristics of excellent corrosion resistance, formability, compatibility, toughness and the like, an air channel is formed between the inner tube 3 and the outer tube 2, a partition plate 6 connected with the outer wall of the inner tube 3 and the inner wall of the outer tube 2 is arranged in the air channel, the air channel partition plate 6 partitions to form an air inlet channel and an air outlet channel which are mutually communicated, and one side of the outer tube 2 is connected with an air inlet pipe 7 communicated with the air inlet channel;

an air inlet 8 is formed in the end portion of the air inlet pipe 7, an air outlet 9 communicated with an air outlet channel is formed in the other side of the outer pipe 2 opposite to the air inlet pipe 7, a welding and repairing material channel is formed in the inner pipe 3, a feed inlet 4 communicated with the welding and repairing material channel is formed in one end of the inner pipe 3, a discharge outlet 5 communicated with the welding and repairing material channel is formed in the other end of the inner pipe 3, a gun head 11 communicated with the welding and repairing material channel is mounted at one end of the outer pipe 2, a detachable nozzle 12 is arranged in the gun head 11, wherein when the nozzle 12 is severely worn, a worker can replace the nozzle 12, an end plate 10 for blocking the air channel is mounted at the other end of the outer pipe 2 opposite to the gun head 11, and a through hole for penetrating through the inner pipe 3 is formed in the center position of the end plate 10;

specifically, when the welding gun body 1 is used for spraying the mixed oxygen and welding repair material mixture onto the kiln lining to be welded and repaired, the mixture enters the welding repair material channel from the feed inlet 4 of the inner tube 3, then enters the nozzle 12 in the gun head 11 through the discharge outlet 5 of the inner tube 3, finally the mixture is sprayed onto the kiln lining to be welded and repaired through the nozzle 12, so that the feeding work is completed, meanwhile, the low-temperature compressed air is introduced into the air inlet channel from the air inlet 8 at the air inlet tube 7 by a worker, then enters the air outlet channel from the air inlet channel to the gun head 11, and then is discharged from the air outlet 9 at the gun tail, the heat of the outer surface of the welding repair gun is absorbed by the low-temperature compressed air and is discharged along with the low-temperature compressed air, and the inner tube 3 is ensured to be at a safe temperature, so that the welding repair gun body 1 can work normally, and when the nozzle 12 is severely worn, the worker can detach the nozzle 12, and the replacement of the nozzle 12 is realized.

In summary, the utility model is composed of two layers of the outer tube 2 and the inner tube 3, the middle partition 6 of the two layers divides the space between the outer tube 2 and the inner tube 3 into the air inlet channel and the air outlet channel, the low-temperature compressed air enters the air inlet channel from the air inlet 8 of the gun tail, enters the air outlet channel from the gun head 11 and is discharged from the air outlet 9 of the gun tail, the low-temperature compressed air is utilized to absorb the heat of the outer surface of the welding repair gun and enable the heat to be discharged along with the low-temperature compressed air, the inner tube 3 is ensured to be at a safe temperature, so that the welding repair gun body 1 can work normally, and the low-temperature compressed air is utilized to cool the welding repair gun body 1, because the compressed air source near the construction area is very common, the installation and connection are very convenient, the cooling work efficiency is improved, the low-temperature compressed air enters from the gun tail and is discharged from the gun tail, the welding repair material is not disturbed to the kiln, the welding repair material is prevented from being blown, the temperature of the welding repair material and the temperature of the surrounding environment is prevented, and the normal work of the furnace lining is ensured. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (5)

1. The utility model provides an air-cooled welding repair gun, includes welding repair gun body, its characterized in that: the welding repair gun body comprises an outer pipe and an inner pipe arranged in the outer pipe, an air passage is formed between the inner pipe and the outer pipe, a partition plate connected with the outer wall of the inner pipe and the inner wall of the outer pipe is arranged in the air passage, the air passage forms an air inlet passage and an air outlet passage which are mutually communicated through the partition plate, one side of the outer pipe is connected with an air inlet pipe communicated with the air inlet passage, an air inlet is formed in the end part of the air inlet pipe, and an air outlet communicated with the air outlet passage is formed in the other side of the outer pipe relative to the air inlet pipe.

2. An air-cooled repair welding gun according to claim 1, characterized in that: the inner pipe is internally provided with a welding material supplementing channel, one end of the inner pipe is provided with a feed inlet communicated with the welding material supplementing channel, and the other end of the inner pipe is provided with a discharge outlet communicated with the welding material supplementing channel.

3. An air-cooled repair welding gun according to claim 2, characterized in that: and one end of the outer tube is provided with a gun head communicated with the welding repair material channel, and a detachable nozzle is arranged in the gun head.

4. An air-cooled repair welding gun according to claim 3, characterized in that: an end plate for blocking the air passage is arranged at the other end of the outer tube opposite to the gun head.

5. An air-cooled repair welding gun according to claim 1, characterized in that: the outer tube and the inner tube are round, and the outer tube is made of stainless steel.