Plasma torch with double anode structure
Patent Information
- Application Number
- CN202522390013.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-11
AI Technical Summary
Oxyacetylene torches currently used in the fiber optic industry leave residual hydroxide ions during welding, leading to material problems.
The plasma torch with a dual-anode structure uses nitrogen or argon as an inert gas and is combined with a water-cooling system to achieve high-temperature heating and welding, avoiding residual hydroxide ions.
It achieves high-temperature heating and welding, with an arc length of over 180mm and a temperature of over 1000 degrees Celsius, avoiding hydroxyl residue and reducing the consumption of electrodes and anodes.
Smart Images

Figure CN224935830U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plasma torch technology, and more specifically, it relates to a plasma torch with a dual anode structure. Background Technology
[0002] Plasma torches convert electrical energy into high-temperature plasma energy, using high-speed plasma jets to heat, melt, modify, or process materials. They are key equipment in the industrial field utilizing the high-energy characteristics of plasma. Essentially, they ionize the working gas through electrode discharge to form a high-temperature plasma arc, which is then compressed and accelerated through a nozzle to form a high-speed jet. The high temperature, high kinetic energy, and chemical activity of the jet are used to complete various industrial operations. Existing torches, such as those used in the fiber optic industry in China, all use oxyacetylene torches for welding. However, this results in residual hydroxide ions in the welded material. Therefore, a plasma torch with a dual-anode structure is proposed. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a plasma torch with a dual-anode structure, which uses inert gases such as nitrogen or argon as ionizing gases to heat and weld or melt optical fiber rods or any metal or non-metal materials that require heating. This solves the problem mentioned in the background art that the torches used for welding in the domestic optical fiber industry all use oxyacetylene torches, resulting in residual hydroxide ions in the welded materials.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a plasma torch with a dual-anode structure, comprising a gun body, wherein the gun body has a first water inlet channel and a first water outlet channel inside, a second water inlet channel and a second water outlet channel inside, a first water-cooling cavity inside, a first water-cooling sleeve at the top of the gun body, a second water-cooling sleeve inside the first water-cooling sleeve, a second water-cooling cavity between the second water-cooling sleeve and the first water-cooling sleeve, an outer pressure sleeve inside the second water-cooling cavity, a third water-cooling cavity between the outer pressure sleeve and the second water-cooling cavity, an inner toothed sleeve inside the outer pressure sleeve, a second anode fixed between the inner toothed sleeve and the outer pressure sleeve, a first anode inside the inner toothed sleeve, a fourth water-cooling cavity between the first anode and the inner toothed sleeve, and an electrode inside the first anode.
[0005] As a preferred embodiment of this utility model, the interior of the first water-cooling cavity is connected to the interior of the second water inlet channel and the second water outlet channel.
[0006] As a preferred embodiment of this utility model, the interior of the second water-cooling cavity is connected to the interior of the first water inlet channel and the first water outlet channel, respectively.
[0007] As a preferred embodiment of this utility model, the third water-cooling cavity is connected to the second water-cooling cavity.
[0008] As a preferred embodiment of this utility model, the interior of the fourth water-cooling cavity is connected to the interior of the second water inlet and the second water outlet, respectively.
[0009] As a preferred embodiment of this utility model, the first water cooling jacket, the second water cooling jacket, the outer pressure sleeve, the inner toothed sleeve, the second anode, the first anode, and the electrode are arranged in a concentric circle structure.
[0010] As a preferred embodiment of this utility model, the first water-cooling jacket and the second anode are in contact.
[0011] This utility model provides a plasma torch with a dual-anode structure, which has the following beneficial effects: This plasma torch with a dual-anode structure uses a dual-anode system, which allows the arc length to reach over 180mm and the temperature to reach over 1000 degrees Celsius when using pure nitrogen gas. It can heat, melt, weld, and evaporate various materials without the need for gas. It can heat, weld, or melt optical fiber rods or any metal or non-metal materials that require heating, without leaving any hydroxyl ions.
[0012] 2. This plasma torch with a dual anode structure reduces the consumption of electrodes and anodes by using water cooling to dissipate heat from the first and second anodes. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of a plasma torch with a dual-anode structure according to this utility model.
[0014] Figure 2 This is a schematic diagram showing the disassembled structure of a plasma torch with a dual-anode structure according to this utility model.
[0015] Figure 3 This is an enlarged cross-sectional view of a plasma torch with a dual-anode structure according to the present invention.
[0016] Figure 4 This is an enlarged schematic diagram of the internal exploded structure of the cavity in a plasma torch with a dual anode structure according to this utility model.
[0017] In the diagram: 1. Gun body; 2. First water inlet channel; 3. First water outlet channel; 4. Second water inlet channel; 5. Second water outlet channel; 6. First water cooling chamber; 7. First water cooling jacket; 8. Second water cooling jacket; 9. Second water cooling chamber; 10. External pressure sleeve; 11. Third water cooling chamber; 12. Internal toothed sleeve; 13. Second anode; 14. First anode; 15. Fourth water cooling chamber; 16. Electrode. Detailed Implementation
[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0019] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Please see Figures 1 to 4This utility model provides a technical solution: a plasma torch with a dual-anode structure, including a gun body 1. The gun body 1 has a first water inlet channel 2 and a first water outlet channel 3 inside. The gun body 1 also has a second water inlet channel 4 and a second water outlet channel 5 inside. The gun body 1 also has a first water-cooling cavity 6 inside. The top of the gun body 1 has a first water-cooling sleeve 7. The first water-cooling sleeve 7 has a second water-cooling sleeve 8 inside. A second water-cooling cavity 9 is located between the second water-cooling sleeve 8 and the first water-cooling sleeve 7. The second water-cooling cavity 9 has an outer pressure sleeve 10 inside. A third water-cooling cavity 11 is located between the outer pressure sleeve 10 and the second water-cooling cavity 9. The outer pressure sleeve 10 has an inner toothed sleeve 12 inside. A second anode 13 is fixed between the inner toothed sleeve 12 and the outer pressure sleeve 10. The inner side is provided with a first anode 14, and a fourth water-cooling cavity 15 is provided between the first anode 14 and the inner sleeve 12. An electrode 16 is provided on the inner side of the first anode 14. The interior of the first water-cooling cavity 6 is connected to the interior of the second water inlet 4 and the second water outlet 5 respectively. The interior of the second water-cooling cavity 9 is connected to the interior of the first water inlet 2 and the first water outlet 3 respectively. The third water-cooling cavity 11 is connected to the second water-cooling cavity 9. The interior of the fourth water-cooling cavity 15 is connected to the interior of the second water inlet 4 and the second water outlet 5 respectively. The first water-cooling sleeve 7, the second water-cooling sleeve 8, the outer pressure sleeve 10, the inner sleeve 12, the second anode 13, the first anode 14 and the electrode 16 are arranged in a concentric circle structure. The first water-cooling sleeve 7 and the second anode 13 are in contact with each other. During operation, a DC arc is generated between electrode 16 and the first anode 14 and the second anode 13, heating the working gas to a high temperature and ionizing it to form a plasma flame. Employing a dual-anode system, even with pure nitrogen, the arc length can reach over 180mm and the temperature over 1000 degrees Celsius. This allows for heating, melting, welding, and evaporation of various materials without the need for fuel gas. The use of dual-path ionizing gas prevents arcing issues between electrode 16 and the first anode 14, and between the first anode 14 and the second anode 13. Through this process, using inert gases such as nitrogen or argon as ionizing gases, fiber optic rods or any metal or non-metal materials requiring heating can be heated, welded, or melted without leaving any hydroxyl ions. During the process, the first water inlet 2 introduces cold water into the second water cooling cavity 9 between the first water cooling jacket 7 and the second water cooling jacket 8, thereby cooling the surface of the first water cooling jacket 7 and preventing burns to personnel. Since the third water cooling cavity 11 is connected to the second water cooling cavity 9, cold water enters the third water cooling cavity 11 to dissipate heat from the second anode 13. The heat-absorbing cooling water is discharged through the first water outlet 3. At the same time, the second water inlet 4 introduces cooling water into the fourth water cooling cavity 15 to dissipate heat radially from the first anode 14. Some cooling water is introduced into the first water cooling cavity 6 to dissipate heat from the inside of the gun body 1. The heat-absorbing cooling water is discharged through the second water outlet 5. By water cooling the first anode 14 and the second anode 13, the consumption of electrodes and anodes is reduced.
[0022] The specific usage and function of this embodiment: When this utility model is working, it generates a DC arc between electrode 16 and the first anode 14 and the second anode 13, heats the working gas to a high temperature and ionizes it to form a plasma flame. Using a dual-anode system, even with the use of pure nitrogen, the arc length can reach more than 180 mm and the temperature can reach more than 1000 degrees. It can heat, melt, weld and evaporate various materials without the need for gas. The use of dual-path ion gas prevents arcing problems between electrode 16 and the first anode 14, and between the first anode 14 and the second anode 13. Through the above process, using inert gases such as nitrogen or argon as ion gas, it can heat, weld or melt optical fiber rods or any metal or non-metal materials that need to be heated without leaving any hydroxide ions. During this process, the first water inlet 2 introduces cold water into the second water cooling cavity 9 between the first water cooling jacket 7 and the second water cooling jacket 8, thereby cooling the surface of the first water cooling jacket 7 and preventing burns to personnel. Since the third water cooling cavity 11 is connected to the second water cooling cavity 9, cold water enters the third water cooling cavity 11 to dissipate heat from the second anode 13. The heat-absorbing cooling water is discharged through the first water outlet 3. At the same time, the second water inlet 4 inputs cooling water into the fourth water-cooling chamber 15, thereby dissipating heat radially from the first anode 14. Part of the cooling water is input into the first water-cooling chamber 6, thereby dissipating heat from the inside of the gun body 1. The cooled water after absorbing heat is discharged through the second water outlet 5. By water-cooling the first anode 14 and the second anode 13, the consumption of electrodes and anodes is reduced.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A plasma torch with a dual-anode structure, comprising a torch body (1), characterized in that: The gun body (1) has a first water inlet channel (2) and a first water outlet channel (3) inside. The gun body (1) also has a second water inlet channel (4) and a second water outlet channel (5) inside. The gun body (1) also has a first water cooling cavity (6) inside. The top of the gun body (1) has a first water cooling jacket (7). The first water cooling jacket (7) has a second water cooling jacket (8) inside. The second water cooling jacket (8) and the first water cooling jacket (7) have a second water cooling cavity (9) between them. The second water cooling cavity (9) has a... The part is provided with an outer pressure sleeve (10), and a third water cooling cavity (11) is provided between the outer pressure sleeve (10) and the second water cooling cavity (9). An inner tooth sleeve (12) is provided inside the outer pressure sleeve (10). A second anode (13) is fixed between the inner tooth sleeve (12) and the outer pressure sleeve (10). A first anode (14) is provided on the inner side of the inner tooth sleeve (12). A fourth water cooling cavity (15) is provided between the first anode (14) and the inner tooth sleeve (12). An electrode (16) is provided on the inner side of the first anode (14).
2. A plasma torch with a dual-anode structure according to claim 1, characterized in that: The interior of the first water-cooled cavity (6) is connected to the interior of the second water inlet channel (4) and the second water outlet channel (5).
3. A plasma torch with a dual-anode structure according to claim 1, characterized in that: The interior of the second water-cooling cavity (9) is connected to the interior of the first water inlet channel (2) and the first water outlet channel (3), respectively.
4. A plasma torch with a dual-anode structure according to claim 1, characterized in that: The third water-cooled cavity (11) is connected to the second water-cooled cavity (9).
5. A plasma torch with a dual-anode structure according to claim 1, characterized in that: The interior of the fourth water-cooled cavity (15) is connected to the interior of the second water inlet (4) and the second water outlet (5).
6. A plasma torch with a dual-anode structure according to claim 1, characterized in that: The first water cooling jacket (7), the second water cooling jacket (8), the outer pressure jacket (10), the inner toothed sleeve (12), the second anode (13), the first anode (14), and the electrode (16) are arranged in a concentric circle structure.
7. A plasma torch with a dual-anode structure according to claim 1, characterized in that: The first water-cooled jacket (7) abuts against the second anode (13).
