Fire-jet head

Abstract

A fire-jet head belongs to the technical field of combustors. Comprising a fire-jet head body and gas delivery pipes arranged in the fire-jet head body, a plurality of gas delivery pipes are arranged side by side, a combustion-supporting gas channel is formed between the gas delivery pipes and the fire-jet head body, an inner concave part is arranged on the outer wall of each gas delivery pipe, and the inner concave parts are located in the combustion-supporting gas channel so that a gas storage part can be formed in the gas channel. The fire-jet head body is connected with a fuel gas inlet pipe communicated with the fuel gas conveying pipe and a combustion-supporting gas inlet pipe communicated with the fuel gas channel. The combustion-supporting gas inlet pipe is communicated with the gas storage part or the gas storage part is located between the combustion-supporting gas inlet pipe and the combustion part of the fire-jet head body. When the fire-jet head works, combustion-supporting gas enters the gas storage part to be cached and then is jetted out through the combustion part, and due to the existence of the gas storage part, a certain amount of combustion-supporting gas can be temporarily stored, so that the jetting pressure of the combustion-supporting gas is ensured to be constant, the combustion of the combustion-supporting gas is ensured to be more stable, and the combustion efficiency is high.

Description

Technical Field

[0001] A type of flame head, belonging to the field of burner technology. Background Technology

[0002] A burner head is a commonly used burner component in industrial welding, glass crafts, and kitchen gas stoves. The burner head has a gas pipe and an oxygen pipe, which are separately delivered to the combustion section of the burner head for mixing and combustion.

[0003] Chinese utility model patent CN203231302U discloses an explosion-proof burner head, in which a liquefied petroleum gas (LPG) output pipe is installed inside the inner tube, and an oxygen flow is formed between the LPG output pipe and the inner tube. However, because there are multiple LPG output pipes, the gap for oxygen input is too small, resulting in unstable gas output and affecting LPG combustion. Secondly, the LPG delivery pipe and the oxygen delivery pipe are located at the same end of the burner head. Due to the small overall size of the burner head, the distance between the LPG and oxygen delivery pipes is very small, making connection installation inconvenient and easily causing interference when operating the valves. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a burner head that increases the storage space of the combustion-supporting gas, ensures the stability of the combustion-supporting gas pressure, and thus ensures the stability of the combustion of the gas.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a flame head includes a flame head body and a gas delivery pipe disposed in the flame head body. Several gas delivery pipes are arranged side by side, forming a combustion-supporting channel between the gas delivery pipes and the flame head body. Each gas delivery pipe has an inner concave portion on its outer wall, which is located in the combustion-supporting channel to form a gas storage section in the gas channel. The flame head body is connected to a gas inlet pipe that communicates with the gas delivery pipe and an auxiliary gas inlet pipe that communicates with the gas channel. The auxiliary gas inlet pipe communicates with the gas storage section or the gas storage section is located between the auxiliary gas inlet pipe and the combustion section of the flame head body.

[0006] Furthermore, the recessed portion is arranged around the gas delivery pipe.

[0007] Furthermore, there are several gas delivery pipes, arranged in a manner where multiple gas delivery pipes surround one pipe.

[0008] Furthermore, the outer diameter of the gas inlet end of the gas delivery pipe is smaller than the outer diameter of the outlet end, and an insert is formed at the gas inlet end of the gas delivery pipe, which is connected to the gas inlet pipe.

[0009] Furthermore, one end of the gas intake pipe is closed, and the intake end of the gas delivery pipe passes through the closed end of the gas intake pipe and extends into the gas intake pipe.

[0010] Furthermore, the gas inlet pipe is located at one end of the burner head body, and the auxiliary gas inlet pipe is located on one side of the middle part of the burner head body.

[0011] Furthermore, the gas inlet pipe and the auxiliary gas inlet pipe are arranged vertically.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The outer wall of the gas delivery pipe of this burner is provided with a concave part, which can form a gas storage part on the burner body with a space larger than the gas-supporting channel. The gas-supporting gas enters into the gas storage part for buffering, and then is ejected through the combustion part. Due to the existence of the gas storage part, a certain amount of gas-supporting gas can be temporarily stored, thereby ensuring that the pressure of the gas-supporting gas ejected is constant, ensuring more stable combustion of the gas and high combustion efficiency. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of the flamethrower in Example 1;

[0015] Figure 2 This is a schematic diagram showing the connection between the gas delivery pipe and the gas intake pipe in Example 1;

[0016] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the arrangement of the gas delivery pipes in Example 1;

[0018] Figure 5 This is a three-dimensional schematic diagram of the gas delivery pipe and the gas intake pipe in Example 2;

[0019] Figure 6 This is a front view schematic diagram of the flamethrower in Example 3.

[0020] In the diagram: 1. Inner tube; 2. Combustion section; 3. Gas inlet pipe; 4. Combustion-supporting gas inlet pipe; 5. Gas delivery pipe; 501. Recessed section; 502. Insertion section. Detailed Implementation

[0021] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-6 The present invention will be further described below.

[0022] A burner head includes a burner head body and a gas delivery pipe 5 disposed within the burner head body. Several gas delivery pipes 5 are arranged side by side, forming a combustion-supporting channel between the gas delivery pipes 5 and the burner head body. Each gas delivery pipe 5 has an inner recess 501 on its outer wall, which is located within the combustion-supporting channel to form a gas storage section within the gas channel. The burner head body is connected to a gas inlet pipe 3 communicating with the gas delivery pipes 5 and an auxiliary gas inlet pipe 4 communicating with the gas channel. The auxiliary gas inlet pipe 4 is connected to the gas storage section, or the gas storage section is located between the auxiliary gas inlet pipe 4 and the combustion section 2 of the burner head body. The outer wall of the gas delivery pipe 5 of this burner head is provided with an inner recess 501, which can form a gas storage section on the main body of the burner head with a space larger than the gas-supporting channel. The gas-supporting gas enters into the gas storage section for buffering, and then is ejected through the combustion section 2. Due to the existence of the gas storage section, a certain amount of gas-supporting gas can be temporarily stored, thereby ensuring that the pressure of the gas-supporting gas ejection is constant, ensuring more stable combustion of the gas and high combustion efficiency.

[0023] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0024] Example 1

[0025] Specifically, such as Figure 1-4 As shown, it should first be noted that the outer wall of the burner head body in this embodiment is also provided with heat dissipation fins and an outer tube. The structure of the burner head body is the same as that of an explosion-proof burner head disclosed in utility model patent CN203231302U, the only difference being the gas delivery pipe 5 and the gas inlet pipe 3.

[0026] In this embodiment, an inner tube 1 is provided inside the main body of the burner head. One end of the inner tube 1 is provided with a closed end, on which a gas port and an auxiliary gas port are provided. A combustion section 2 is formed at the end of the inner tube 1. In this embodiment, the auxiliary gas is oxygen. The gas port is connected to the gas delivery pipe 5, and the auxiliary gas port is connected to the auxiliary gas flow channel.

[0027] A combustion gas inlet pipe 4 is provided on the lower side of the inner tube 1. The combustion gas inlet pipe 4 is perpendicular to the inner tube 1, and its upper end is connected to the inner cavity of the inner tube 1, thereby connecting to the combustion gas passage. The gas storage section is connected to the combustion gas inlet pipe 4, or the gas storage section is located between the combustion gas inlet pipe 4 and the combustion section 2. In this embodiment, the gas storage section is located between the combustion gas inlet pipe 4 and the combustion section 2 to ensure stable combustion gas pressure ejected from the combustion section.

[0028] The outer diameter of the inlet end of the gas supply pipe 5 is smaller than the outer diameter of the outlet end, and an insert portion 502 is formed at the inlet end of the gas supply pipe 5. The insert portion 502 passes through the closed end of the gas intake pipe 3 and extends into the gas intake pipe 3. The open end of the gas intake pipe 3 is connected to an input pipe with a diameter smaller than that of the gas intake pipe 3. The gas intake pipe 3 is sealed to the end of the inner pipe 1 away from the combustion section 2. This makes the gas intake pipe 3 perpendicular to the auxiliary combustion gas intake pipe 4.

[0029] During operation, the gas is transported from the gas inlet pipe 3 to the combustion section 2 via the gas delivery pipe 5 and then ejected through the gas outlet. Oxygen enters the inner pipe 1 through the combustion-supporting gas inlet pipe 4 and then enters the combustion-supporting gas passage. After being buffered by the gas storage section, it is ejected through the combustion-supporting gas outlet, thus achieving combustion in the combustion section.

[0030] Example 2

[0031] like Figure 5 As shown: The difference between Example 2 and Example 1 is that the concave portion 501 of the gas delivery pipe 5 extends into the gas inlet pipe 3.

[0032] Example 3

[0033] like Figure 6 As shown: The difference between Example 3 and Example 1 is that the air intake end of the combustion gas intake pipe 4 is bent towards the direction of the combustion gas intake pipe 3.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A flamethrower head, characterized in that: The device includes a burner head body and a gas delivery pipe (5) disposed inside the burner head body. Several gas delivery pipes (5) are arranged side by side and form a gas-supporting channel between the gas delivery pipes (5) and the burner head body. Each gas delivery pipe (5) has an inner recess (501) on its outer wall. The inner recess (501) is located inside the gas-supporting channel to form a gas storage section inside the gas channel. The burner head body is connected to a gas inlet pipe (3) that communicates with the gas delivery pipe (5) and a gas-supporting inlet pipe (4) that communicates with the gas channel. The gas-supporting inlet pipe (4) communicates with the gas storage section or the gas storage section is located between the gas-supporting inlet pipe (4) and the combustion section (2) of the burner head body.

2. The flamethrower head according to claim 1, characterized in that: The recessed portion (501) is arranged around the gas delivery pipe (5).

3. The flamethrower head according to claim 1, characterized in that: The gas transmission pipe (5) has several sections, and the gas transmission pipes (5) are arranged in a manner in which multiple sections surround one section.

4. The flamethrower head according to claim 1, characterized in that: The outer diameter of the gas inlet end of the gas delivery pipe (5) is smaller than the outer diameter of the outlet end, and an insert (502) is formed at the gas inlet end of the gas delivery pipe (5), which is connected to the gas inlet pipe (3).

5. The flamethrower head according to claim 1 or 4, characterized in that: One end of the gas inlet pipe (3) is closed, and the inlet end of the gas delivery pipe (5) passes through the closed end of the gas inlet pipe (3) and extends into the gas inlet pipe (3).

6. The flamethrower head according to claim 1, characterized in that: The gas inlet pipe (3) is located at one end of the flame head body, and the auxiliary gas inlet pipe (4) is located on one side of the middle part of the flame head body.

7. The flamethrower head according to claim 1 or 6, characterized in that: The gas inlet pipe (3) and the auxiliary gas inlet pipe (4) are arranged vertically.

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