Oxyhydrogen flame mixed fire head

Abstract

The utility model relates to the technical field of welding tools, in particular to an oxyhydrogen flame mixed fire head which comprises an oxygen input pipe, an oxygen output pipe, a hydrogen input pipe and a hydrogen output pipe. The oxygen input pipe is communicated with the oxygen output pipe, and the hydrogen input pipe is communicated with the hydrogen output pipe; the hydrogen output pipe is connected to the outer portion of the portion where an output port of the oxygen output pipe is located in a sleeving mode, a first preset distance is arranged between a pipeline opening of the hydrogen output pipe and a pipeline opening of the oxygen output pipe, and the length of the oxygen output pipe is smaller than that of the hydrogen output pipe. And hydrogen and oxygen are mixed in preset areas at pipeline openings of the hydrogen output pipe and the oxygen output pipe. The hydrogen output pipe is connected to the outer portion of the oxygen output pipe in a sleeving mode, and the first preset distance is arranged between the pipeline opening of the hydrogen output pipe and the pipeline opening of the oxygen output pipe, so that hydrogen and oxygen are fully mixed in a preset area before being ignited, and the mixing environment is more stable; the influence of the surrounding environment in the hydrogen and oxygen mixing process is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of welding tool technology, and in particular to a hydrogen-oxygen flame hybrid burner. Background Technology

[0002] The oxyhydrogen (OH) flame burner head is a key component related to OH flames, commonly used in OH flame equipment such as OH welding machines, OH sealing machines, OH flame tapering machines, and OH flame beam expanders to generate high-temperature OH flames. Based on their materials and designs, OH flame burner heads can be categorized into various types, such as ceramic burner heads, honeycomb burner heads, glass burner heads, and glass separation burner heads. These different types of burner heads each have their own characteristics and are suitable for different application scenarios. The OH flame burner head is one of the core components of OH flame equipment; it is responsible for mixing and burning the hydrogen and oxygen produced by water electrolysis to form a high-temperature OH flame. Different types of OH flame burner heads can produce OH flames of different shapes and temperatures, thus meeting different processing requirements. For example, fine processing applications may require a burner head with a more concentrated flame and higher temperature. A high-quality OH flame burner head ensures the stability and controllability of the OH flame, thereby improving processing efficiency and product quality.

[0003] In existing technologies, hydrogen-oxygen flame heads mostly use independently set hydrogen and oxygen delivery pipes, with the hydrogen delivery pipe at the top and the oxygen delivery pipe at the bottom. The hydrogen and oxygen are mixed in the air. Since the mixing takes place in an open space, the hydrogen-oxygen ratio set by the parameters can be easily affected by the airflow and the composition of the surrounding air in the open space, thus affecting the conical effect.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing hydrogen-oxygen flame heads use independently set hydrogen and oxygen delivery pipes, and the mixing of hydrogen and oxygen in the air is easily affected by the airflow in open spaces and the composition of the surrounding air, thus affecting the conical effect.

[0006] The present invention adopts the following technical solution:

[0007] On one hand, this utility model provides a hydrogen-oxygen flame mixing burner, including: an oxygen input pipe 1, an oxygen output pipe 2, a hydrogen input pipe 3, and a hydrogen output pipe 4; the oxygen input pipe 1 is connected to the oxygen output pipe 2, and the hydrogen input pipe 3 is connected to the hydrogen output pipe 4.

[0008] The hydrogen output pipe 4 is sleeved outside the portion where the oxygen output pipe 2 is located. A first preset distance is provided between the pipe opening of the hydrogen output pipe 4 and the pipe opening of the oxygen output pipe 2. The length of the oxygen output pipe 2 is less than the length of the hydrogen output pipe 4. The area where the first preset distance is located is a preset area. Hydrogen and oxygen are mixed in the preset area at the pipe openings of the hydrogen output pipe 4 and the oxygen output pipe 2.

[0009] Preferably, a first annular protrusion 5 is provided at the connection between the oxygen input pipe 1 and the oxygen output pipe 2. The first annular protrusion 5 is used to ensure the stability of the connection between the oxygen input pipe 1 and the oxygen output pipe 2.

[0010] A second annular protrusion 6 is provided at the connection between the hydrogen input pipe 3 and the hydrogen output pipe 4. The second annular protrusion 6 is used to ensure the stability of the connection between the hydrogen input pipe 3 and the hydrogen output pipe 4.

[0011] Preferably, the oxygen output pipe 2 includes a large-diameter section 20 and a small-diameter section 21. The large-diameter section 20 is located between the first annular protrusion 5 and the second annular protrusion 6, and the small-diameter section 21 is located between the second annular protrusion 6 and the output port of the oxygen output pipe 2. The hydrogen output pipe 4 is sleeved on the small-diameter section 21.

[0012] Preferably, the first preset distance is 2mm ± 0.2mm.

[0013] Preferably, the outer diameter of the oxygen inlet pipe 1 is 6mm ± 0.2mm, and the inner diameter is 3mm ± 0.2mm.

[0014] Preferably, the inner diameter of the oxygen output pipe 2 is 2.2 mm ± 0.2 mm.

[0015] Preferably, the outer diameter of the hydrogen input pipe 3 is 6mm ± 0.2mm, and the inner diameter is 3mm ± 0.2mm.

[0016] Preferably, the outer diameter of the hydrogen output pipe 4 is 6.2mm ± 0.2mm, and the inner diameter is 4.8mm ± 0.2mm.

[0017] Preferably, the lengths of the oxygen input pipe 1 and the hydrogen input pipe 3 are 46 mm ± 0.2 mm.

[0018] Preferably, the roughness of the oxygen input pipe 1, oxygen output pipe 2, hydrogen input pipe 3 and hydrogen output pipe 4 is 3.2um ± 0.1um.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: by connecting the hydrogen output pipe 4 to the outside of the oxygen output pipe 2, and setting a first preset distance between the pipe opening of the hydrogen output pipe 4 and the pipe opening of the oxygen output pipe 2, the hydrogen and oxygen are fully mixed in the preset area before being ignited. Compared with the existing method of mixing oxygen and hydrogen in completely open air, the mixing environment of hydrogen and oxygen in the preset area is more stable, which can effectively avoid the influence of the surrounding environment during the mixing process of hydrogen and oxygen, making the mixing more complete, thereby making the flame more stable and the drawing parameters more stable. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a hydrogen-oxygen flame mixing burner provided in an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of a hydrogen-oxygen flame mixing burner provided in an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the large-diameter section and the small-diameter section of a hydrogen-oxygen flame mixing burner provided in an embodiment of this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as openly inclusive, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples; that is, although they may be incorporated into embodiments or examples using the above terms for reasons such as order and position, it does not limit them to be incorporated in combination by a single embodiment or example.

[0026] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0027] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more. Furthermore, for example, the description may use the prefix "A" or "B" to describe the same type of nouns as two independent entities. In this case, the features defined with "A" and "B" are used only to distinguish between similar entities and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0028] In describing some embodiments, the terms "coupled," "coupled," and "connected," and their derivative expressions, may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. Similarly, the term "coupled" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact. However, the terms "connected" or "coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other, such as "optical coupling" or "wireless connection." The embodiments disclosed herein are not necessarily limited to the scope of this invention.

[0029] In the description of this utility model, the expression "A and / or B" (where A and B are used to formally represent specific features) will be involved. The corresponding expression includes the following three combinations: only A, only B, and a combination of A and B.

[0030] As used in this invention, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the specified value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the specified quantity (i.e., the limitations of the measurement system).

[0031] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] Example 1:

[0033] Embodiment 1 of this utility model provides a hydrogen-oxygen flame hybrid burner, such as Figure 1 and Figure 2 As shown, it includes: an oxygen input pipe 1, an oxygen output pipe 2, a hydrogen input pipe 3, and a hydrogen output pipe 4; the oxygen input pipe 1 is connected to the oxygen output pipe 2, and the hydrogen input pipe 3 is connected to the hydrogen output pipe 4; the hydrogen output pipe 4 is sleeved outside the portion of the oxygen output pipe 2 where the output port is located, and a first preset distance (e.g., ...) is provided between the pipe opening of the hydrogen output pipe 4 and the pipe opening of the oxygen output pipe 2. Figure 2 (As shown in the dashed box), the length of the oxygen output pipe 2 is less than the length of the hydrogen output pipe 4, and the area where the first preset distance is located is a preset area. Hydrogen and oxygen are mixed in the preset area at the pipe openings of the hydrogen output pipe 4 and the oxygen output pipe 2.

[0034] The first preset distance is 2mm ± 0.2mm. The reason the hydrogen output pipe 4 is sleeved outside the oxygen output pipe 2 is that, in practical applications, the oxygen flow rate is less than the hydrogen flow rate. Therefore, the inner diameter of the oxygen output pipe 2 is smaller than the inner diameter of the hydrogen output pipe 4, and the oxygen output pipe 2 is placed inside the hydrogen output pipe 4. In a preferred embodiment, to expand the range of the preset area, see [reference needed]. Figure 2 As shown, a chamfer can be provided at the pipe opening of the oxygen output pipe 2.

[0035] In this embodiment of the invention, the preferred material for the hydrogen-oxygen flame hybrid burner is ceramic. Ceramic materials exhibit superior heat resistance and rigidity compared to traditional burners, and are less prone to cracking, wear, or deformation. However, in actual production, the choice can be made based on actual needs and cost control, and no specific limitations are imposed here.

[0036] By connecting the hydrogen output pipe 4 to the outside of the oxygen output pipe 2, and setting a first preset distance between the pipe opening of the hydrogen output pipe 4 and the pipe opening of the oxygen output pipe 2, the hydrogen and oxygen are fully mixed in the preset area before being ignited. Compared with the existing mixing of oxygen and hydrogen in completely open air, the mixing environment of hydrogen and oxygen in the preset area is more stable, which can effectively avoid the influence of the surrounding environment during the mixing process of hydrogen and oxygen, making the mixing more complete, thereby making the flame more stable and the drawing parameters more stable.

[0037] During the oxygen and hydrogen transportation process, the connection points between the oxygen input pipe 1 and the oxygen output pipe 2, and between the hydrogen input pipe 3 and the hydrogen output pipe 4, are bent and easily subject to external impacts. Therefore, to ensure that these two bends are not easily damaged by external impacts, a first annular protrusion 5 is provided at the connection point between the oxygen input pipe 1 and the oxygen output pipe 2. The first annular protrusion 5 is used to ensure the stability of the connection point between the oxygen input pipe 1 and the oxygen output pipe 2. A second annular protrusion 6 is provided at the connection point between the hydrogen input pipe 3 and the hydrogen output pipe 4. The second annular protrusion 6 has a thickness of 10mm ± 0.2mm and a diameter of 10mm ± 0.2mm; the distance between the bottom of the oxygen output pipe 2 and the first annular protrusion 5 is 1.5mm ± 0.2mm. It is worth mentioning that the data range mentioned in the embodiments of this utility model is only illustrative. In the actual processing, the specific size is set according to the actual needs, and no specific limitation is made here.

[0038] In the aforementioned scheme, the hydrogen output pipe 4 is sleeved outside the portion where the oxygen output pipe 2 is located, specifically, as follows: Figure 3 As shown, the oxygen output pipe 2 includes a large-diameter section 20 and a small-diameter section 21. The large-diameter section 20 is located between the first annular protrusion 5 and the second annular protrusion 6, and the small-diameter section 21 is located between the second annular protrusion 6 and the output port of the oxygen output pipe 2. The hydrogen output pipe 4 is sleeved on the small-diameter section 21. The outer diameter of the large-diameter section 20 is 6.2 mm ± 0.2 mm, and the outer diameter of the small-diameter section 21 is 3.2 mm ± 0.2 mm.

[0039] In the above scheme, the outer diameter of the oxygen input pipe 1 is 6mm ± 0.2mm, and the inner diameter is 3mm ± 0.2mm; the inner diameter of the oxygen output pipe 2 is 2.2mm ± 0.2mm; the outer diameter of the hydrogen input pipe 3 is 6mm ± 0.2mm, and the inner diameter is 3mm ± 0.2mm; the outer diameter of the hydrogen output pipe 4 is 6.2mm ± 0.2mm, and the inner diameter is 4.8mm ± 0.2mm. The distance between the center of the oxygen input pipe 1 and the center of the hydrogen input pipe 3 can be 23mm ± 0.2mm, and the distance between the center of the hydrogen input pipe 3 and the center of the hydrogen output pipe 4 can also be 23mm ± 0.2mm. The length of the oxygen input pipe 1 and the hydrogen input pipe 3 is 46mm ± 0.2mm.

[0040] In the entire structure of the hydrogen-oxygen flame mixing burner, the roughness of the oxygen input pipe 1, oxygen output pipe 2, hydrogen input pipe 3, and hydrogen output pipe 4 is 3.2 μm ± 0.1 μm.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydrogen-oxygen flame hybrid burner, characterized in that, include: Oxygen input pipe (1), oxygen output pipe (2), hydrogen input pipe (3) and hydrogen output pipe (4); the oxygen input pipe (1) is connected to the oxygen output pipe (2), and the hydrogen input pipe (3) is connected to the hydrogen output pipe (4); The hydrogen output pipe (4) is sleeved outside the part where the output port of the oxygen output pipe (2) is located. A first preset distance is provided between the pipe opening of the hydrogen output pipe (4) and the pipe opening of the oxygen output pipe (2). The length of the oxygen output pipe (2) is less than the length of the hydrogen output pipe (4). The area where the first preset distance is located is a preset area. Hydrogen and oxygen are mixed in the preset area at the pipe openings of the hydrogen output pipe (4) and the oxygen output pipe (2).

2. The hydrogen-oxygen flame mixing burner according to claim 1, characterized in that, A first annular protrusion (5) is provided at the connection between the oxygen input pipe (1) and the oxygen output pipe (2). The first annular protrusion (5) is used to ensure the stability of the connection between the oxygen input pipe (1) and the oxygen output pipe (2). A second annular protrusion (6) is provided at the connection between the hydrogen input pipe (3) and the hydrogen output pipe (4). The second annular protrusion (6) is used to ensure the stability of the connection between the hydrogen input pipe (3) and the hydrogen output pipe (4).

3. The hydrogen-oxygen flame mixing burner according to claim 2, characterized in that, The oxygen output pipe (2) includes a large-diameter section (20) and a small-diameter section (21). The large-diameter section (20) is located between the first annular protrusion (5) and the second annular protrusion (6). The small-diameter section (21) is located between the second annular protrusion (6) and the output port of the oxygen output pipe (2). The hydrogen output pipe (4) is sleeved on the small-diameter section (21).

4. The hydrogen-oxygen flame mixing burner according to any one of claims 1-3, characterized in that, The first preset distance is 2mm ± 0.2mm.

5. The hydrogen-oxygen flame mixing burner according to any one of claims 1-3, characterized in that, The outer diameter of the oxygen input pipe (1) is 6mm ± 0.2mm, and the inner diameter is 3mm ± 0.2mm.

6. The hydrogen-oxygen flame mixing burner according to any one of claims 1-3, characterized in that, The inner diameter of the oxygen output pipe (2) is 2.2 mm ± 0.2 mm.

7. The hydrogen-oxygen flame mixing burner according to any one of claims 1-3, characterized in that, The outer diameter of the hydrogen input pipe (3) is 6 mm ± 0.2 mm, and the inner diameter is 3 mm ± 0.2 mm.

8. The hydrogen-oxygen flame mixing burner according to any one of claims 1-3, characterized in that, The outer diameter of the hydrogen output pipe (4) is 6.2 mm ± 0.2 mm, and the inner diameter is 4.8 mm ± 0.2 mm.

9. The hydrogen-oxygen flame mixing burner according to any one of claims 1-3, characterized in that, The lengths of the oxygen input pipe (1) and the hydrogen input pipe (3) are 46 mm ± 0.2 mm.

10. The hydrogen-oxygen flame mixing burner according to any one of claims 1-3, characterized in that... The roughness of the oxygen input pipe (1), oxygen output pipe (2), hydrogen input pipe (3) and hydrogen output pipe (4) is 3.2um ± 0.1um.

Images