Long-arm flame gun for high-temperature environment

Abstract

The utility model discloses a long-arm flame gun for a high-temperature environment, which comprises a flame gun body, a flame nozzle arranged at the end of the flame gun body, an oxygen inlet pipe inserted in the middle of the flame gun body, a fuel gas inlet pipe mounted at the center of the flame gun body, a flame pipe arranged on the flame gun body, a flame branch pipe fixedly arranged at the end of the flame pipe, and a gas inlet pipe mounted at the center of the flame gun body, annular reinforcing ribs are welded and fixed to the fire spraying branch pipes. According to the long-arm flame gun used in the high-temperature environment, the flame gun body is formed by welding the multiple annular reinforcing ribs and the multiple sets of flame spraying pipes, the overall length of the flame gun body is increased, fuel and air can have more time and space to be fully mixed through the long gun barrel, and therefore combustion is more sufficient, flames are more stable and concentrated, and the combustion efficiency is improved. The temperature is higher, and work tasks such as heating and welding can be completed more effectively; working heat generated by the flame nozzle is transmitted to circulating water through the interface red copper thread body to be discharged; the flame nozzle is low in actual heating temperature, convenient to replace and long in service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of flame gun, concretely to long arm flame gun for high temperature environment. BACKGROUND

[0002] The flame gun is suitable for being applied to the 270t ladle bottom blowing channel cleaning device, and solid metal on the flame gun is sprayed and melted and cleaned; the specific mode is as follows: opening the gas valve, slightly loosening the spray gun switch, directly igniting at the nozzle, then adjusting the switch of the flame gun according to the need, so that the flame reaches the appropriate temperature and size; generally, the flame temperature for melting the solid metal needs to reach above 1000 DEG C; the flame of the flame gun is aimed at the solid metal part in the 270t ladle bottom blowing channel cleaning device, and a certain distance and angle are kept; the distance is usually about 10-30 centimeters, and the angle is preferably such that the flame can fully act on the solid metal, and the specific adjustment can be made according to the actual situation; in the process of spraying fire, the flame gun needs to be slowly and uniformly moved, so that the flame covers the whole solid metal area needing to be cleaned, and ensures that the solid metal can be uniformly heated and melted; long-time concentrated spraying of fire is avoided to prevent local overheating or damage to the cleaning device.

[0003] The length of the flame gun is relatively short, so that the relatively short gun barrel makes the mixing time and space of fuel and air relatively insufficient, which can cause the fuel to be unable to fully burn; this not only reduces the temperature and heat output of the flame, affects the working efficiency, but also can cause the waste of fuel and increase the use cost. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing long arm flame gun for high temperature environment to solve the defects mentioned in the above background art.

[0005] To achieve the above-mentioned purpose, a long arm flame gun for high temperature environment is provided, which comprises a flame gun body, the end of the flame gun body is provided with a flame nozzle, an oxygen inlet pipe is inserted into the middle of the flame gun body, a gas inlet pipe is installed at the center of the flame gun body, a flame pipe is arranged on the flame gun body, a flame branch pipe is fixedly arranged at the end of the flame pipe, and an annular reinforcing rib is welded and fixed on the flame branch pipe.

[0006] Preferably, a gun end interface is fixedly arranged at the left end of the flame gun body, the size of the gun end interface is matched with that of the flame nozzle, and the flame nozzle is screw-fixed on the gun end interface.

[0007] Preferably, the annular reinforcing ribs are evenly arranged as multiple groups on the flame gun body, and the distance between the adjacent two groups of annular reinforcing ribs is consistent.

[0008] Preferably, the axial section of the annular reinforcing rib and the flame pipe is a concentric circle structure, the flame pipes are evenly arranged as multiple groups, and the adjacent two groups of flame pipes are welded and fixed through the annular reinforcing rib.

[0009] Preferably, the plurality of annular reinforcing ribs and the plurality of groups of flame spraying pipes are welded to form a flame spraying gun body, and a circulating water cooling jacket is arranged on the flame spraying gun body and close to one side of the gun end interface.

[0010] Preferably, the flame spraying nozzle is a cylindrical structure made of red copper, and heat generated by the flame spraying nozzle is transferred to circulating water in the circulating water cooling jacket through the gun end interface.

[0011] Preferably, the outer side of the flame spraying gun body is respectively provided with a cooling water inlet pipe and a cooling water outlet pipe, the end of the cooling water outlet pipe is in communication with a water outlet of the circulating water cooling jacket, and the end of the cooling water inlet pipe is in communication with a water inlet of the circulating water cooling jacket.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The utility model discloses a threaded connection between the flame spraying nozzle and the gun end interface, the flame spraying nozzle is made of red copper and plated with silver, working heat generated by the flame spraying nozzle is transferred to circulating water through the interface red copper threaded body, the actual heating temperature of the flame spraying nozzle is low, the flame spraying nozzle is convenient to replace and has long service life.

[0014] 2. The utility model discloses a plurality of annular reinforcing ribs and a plurality of groups of flame spraying pipes are welded to form a flame spraying gun body, the overall length of the flame spraying gun body is increased, the longer gun pipe can make fuel and air have more time and space to mix fully, so that combustion is more sufficient, the flame is more stable, concentrated and high-temperature, and heating, welding and other work tasks can be more effectively completed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the utility model structure.

[0016] Figure 2 It is a side view. Figure 1

[0017] Figure 3 It is a schematic view of the flame spraying nozzle and the mounting structure thereof.

[0018] Figure 4 It is an enlarged structure schematic view of A in the utility model. Figure 1

[0019] Marked number in the drawing: 1, flame spraying nozzle;2, gun end interface;3, flame spraying pipe;31, flame spraying branch pipe;4, annular reinforcing rib;5, cooling water inlet pipe;51, cooling water outlet pipe;6, fuel gas inlet pipe;7, oxygen inlet pipe;8, flame spraying gun body. DETAILED DESCRIPTION

[0020] ​​Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of the utility model protection.

[0021] Please refer to Figures 1-4 The utility model provides a long arm fire gun for high temperature environment, including fire gun body 8, the end of fire gun body 8 is provided with fire nozzle 1, the middle part of fire gun body 8 is inserted with oxygen inlet pipe 7, the center of fire gun body 8 is installed with gas inlet pipe 6, fire gun body 8 is provided with fire pipe 3, fire pipe 3 end is fixedly provided with fire branch pipe 31, and annular reinforcing rib 4 is welded and fixed on fire branch pipe 31.

[0022] Working principle: when actual use is carried out, the fire gun is suitable for 270t steel ladle bottom blowing channel cleaning device, and solid metal on it is sprayed and melted to clean up; the appearance size of fire gun body 8 can be changed to be used in other places needing fire melting cleaning; the structure design of fire gun is scientific, fire nozzle 1 is convenient to replace and maintain, fire nozzle and fire gun body adopt water cooling technology, which utilizes the circulating water jacket installed on the outside of fire gun body 8; the material of fire nozzle 1 is red copper, which is plated with silver, the material of gun end interface 2 of fire gun is red copper, heat transfer is good, and the service life of fire nozzle 1 is long; the gun body adopts stainless material, the fire branch pipe 31 of the gun body and fire branch pipe 31 are welded into an integral whole through annular reinforcing rib 4, the structural strength is high, the fire gun body 8 is almost not deformed and curved under the condition of long cantilever and asymmetric high temperature environment;

[0023] A plurality of annular reinforcing ribs 4 and a plurality of groups of fire pipes 3 are welded to form fire gun body 8, the comprehensive mechanical strength of fire gun body 8 is greatly improved, and the gun head is not drooping during work; the circulating water cooling jacket is installed on fire gun body 8, cooling water inlet pipe 5 is arranged on one side of the cooling jacket, and cooling water outlet pipe 51 is arranged on the other side of the cooling jacket; the circulating water cooling jacket is arranged on the side close to gun end interface 2, can cool gun end interface 2 and fire nozzle 1, and the service life of fire nozzle 1 and gun end interface 2 is improved;

[0024] Fire gun body 8 works under the condition of 1000 degrees, and the material thereof is 304 heat-resistant and corrosion-resistant stainless steel; fire gun body 8 is provided with circulating water cooling, so that the gun body is almost not deformed during work, and the service life is long; the gun end interface 2 is in water cooling environment, the end face is not damaged by high temperature, the sealing is reliable, and the service life is long;

[0025] The connection between the flame nozzle 1 and the gun end interface 2 is provided as a threaded connection, the material of the flame nozzle 1 is red copper, and the outside is plated with silver. The working heat generated by the flame nozzle 1 is transmitted to the circulating water outlet through the interface red copper threaded body; the actual heating temperature of the flame nozzle 1 is low, the replacement is convenient, and the service life is long;

[0026] A plurality of annular reinforcing ribs 4 and a plurality of groups of flame pipes 3 are welded to form a flame gun body 8. The overall length of the flame gun body 8 is increased. When actually used, the long pipe flame gun can make the user be in a relatively upwind position, reduce the inhalation amount of harmful gas, and reduce the damage to the respiratory system. The long pipe flame gun can easily reach the target in a high place, a remote place, or a narrow space without the user needing to approach or perform a high-difficulty action, thereby reducing the operation difficulty and improving the work efficiency. The longer gun barrel can provide better leverage and stability, making it easier for the user to control the direction and angle of the flame when operating the flame gun, accurately heating or processing the target, and reducing the shaking and deviation of the flame. The longer gun barrel can allow the fuel and air to have more time and space for sufficient mixing, thereby making the combustion more complete, the flame more stable and concentrated, and the temperature higher, which can more effectively complete the heating, welding, and other work tasks.

[0027] As a preferred embodiment, a gun end interface 2 is fixedly arranged at the left end of the flame gun body 8. The size of the gun end interface 2 is matched with that of the flame nozzle 1. The flame nozzle 1 is screwed and fixed on the gun end interface 2.

[0028] The annular reinforcing ribs 4 are uniformly arranged in multiple groups on the flame gun body 8. The distance between the adjacent two groups of annular reinforcing ribs 4 is consistent.

[0029] As a preferred embodiment, the axial section of the annular reinforcing rib 4 and the flame pipe 3 is a concentric circle structure. The flame pipes 3 are uniformly arranged in multiple groups. The adjacent two groups of flame pipes 3 are welded and fixed through the annular reinforcing rib 4.

[0030] A plurality of annular reinforcing ribs 4 and a plurality of groups of flame pipes 3 are welded to form a flame gun body 8. A circulating water cooling jacket is installed on the flame gun body 8. The circulating water cooling jacket is arranged close to the side of the gun end interface 2.

[0031] As a preferred embodiment, the flame nozzle 1 is cylindrically arranged and made of red copper. The heat generated by the operation of the flame nozzle 1 is transmitted to the circulating water in the cooling jacket through the gun end interface 2.

[0032] A cooling water inlet pipe 5 and a cooling water outlet pipe 51 are respectively installed on the outside of the flame gun body 8. The end of the cooling water outlet pipe 51 is in communication with the water outlet of the circulating water cooling jacket. The end of the cooling water inlet pipe 5 is in communication with the water inlet of the circulating water cooling jacket.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long-arm flamethrower for high-temperature environments, comprising a flamethrower body (8), characterized in that: The flame gun body (8) is provided with a flame nozzle (1) at the end, an oxygen inlet pipe (7) is inserted through the middle of the flame gun body (8), a gas inlet pipe (6) is installed at the center of the flame gun body (8), a flame pipe (3) is provided on the flame gun body (8), a flame branch pipe (31) is fixedly provided at the end of the flame pipe (3), and an annular reinforcing rib (4) is welded and fixed on the flame branch pipe (31).

2. The long-arm flamethrower for high-temperature environments according to claim 1, characterized in that: The flame gun body (8) has a fixed gun end interface (2) on the left end. The size of the gun end interface (2) is compatible with that of the flame nozzle (1). The flame nozzle (1) is screwed and fixed on the gun end interface (2).

3. The long-arm flamethrower for high-temperature environments according to claim 1, characterized in that: The annular reinforcing ribs (4) are evenly arranged in multiple groups on the flame gun body (8), and the distance between two adjacent groups of annular reinforcing ribs (4) is consistent.

4. A long-arm flamethrower for high-temperature environments according to any one of claims 3 or 1, characterized in that: The axial cross-section of the annular reinforcing rib (4) and the flame tube (3) is a concentric circle structure. The flame tube (3) is evenly arranged in multiple groups, and adjacent groups of flame tubes (3) are welded and fixed together by the annular reinforcing rib (4).

5. A long-arm flamethrower for high-temperature environments according to claim 4, characterized in that: Multiple annular reinforcing ribs (4) and multiple sets of flame tubes (3) are welded together to form a flame gun body (8). A circulating water cooling jacket is installed on the flame gun body (8), and the circulating water cooling jacket is set on the side near the gun end interface (2).

6. A long-arm flamethrower for high-temperature environments according to claim 5, characterized in that: The nozzle (1) is a cylindrical part made of copper. The heat generated by the nozzle (1) is transferred to the circulating water inside the cooling jacket through the gun end interface (2).

7. A long-arm flamethrower for high-temperature environments according to any one of claims 1 or 5, characterized in that: The outer side of the flame gun body (8) is respectively equipped with a cooling water inlet pipe (5) and a cooling water outlet pipe (51). The end of the cooling water outlet pipe (51) is connected to the outlet of the circulating water cooling jacket, and the end of the cooling water inlet pipe (5) is connected to the inlet of the circulating water cooling jacket.

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