Water cooled cable for a plasma torch

Abstract

The utility model relates to the technical field of plasma torch, specifically disclose a water -cooled cable for plasma torch, including cathode water -cooled cable and anode water -cooled cable, cathode water -cooled cable includes two joints, two cathode nuts and a cloth air rubber pipe, and the both ends of cloth air rubber pipe are respectively covered on the outer circular surface of two joints, and the end of cloth air rubber pipe is provided with a throat clamp, and two joints are connected with the cathode wire in cloth air rubber pipe, and the outer end of joint is connected with the corresponding cathode nut, and anode water -cooled cable includes two connectors, two anode nuts and a metal bellows, the utility model effectively solved the problem of easy water leakage in the process of dismounting, and the joint is easy to damage, reduced the maintenance cost of equipment and the security risk when operating, and the cathode water -cooled cable has good water -cooling, power -on and insulation three -layer effect, and the anode water -cooled cable prolongs the service life while guaranteeing the performance.

Description

Technical Field

[0001] This utility model relates to the field of plasma torch technology, and specifically discloses a cathode and anode water-cooled cable suitable for plasma torches. Background Technology

[0002] Plasma is considered the fourth state of matter, after solid, liquid, and gas, and is an ionized gas containing energy. It forms by ionizing a gas with sufficient energy, separating electrons from neutral gas molecules and atoms. The high temperatures used to generate plasma are generally provided by an electrically driven arc torch, and the average temperature of the resulting plasma flame can reach over 5000 K. Therefore, it is essential to ensure proper cooling of the plasma torch's components during operation to guarantee its long-term stable operation. Furthermore, due to the high voltage at the cathode during operation, the cathode water-cooled cable requires adequate insulation.

[0003] However, existing anode and cathode water-cooled cables suffer from problems such as easy leakage and damage at the joints during maintenance and disassembly, increasing equipment maintenance costs and operational safety hazards. Therefore, in response to the aforementioned technical problems and shortcomings of existing plasma torch anode and cathode water-cooled cables, this application proposes a plasma torch water-cooled cable that can effectively solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a water-cooled cable for plasma torches to solve the problems of easy water leakage and damage at the joints in existing anode and cathode water-cooled cables during maintenance and disassembly.

[0005] This utility model is achieved through the following technical solution: A water-cooled cable for a plasma torch includes a cathode water-cooled cable and an anode water-cooled cable. The cathode water-cooled cable includes two connectors, two cathode nuts, and a fabric-reinforced air rubber tube. The two ends of the fabric-reinforced air rubber tube are respectively sleeved on the outer circular surface of the two connectors, and the ends of the fabric-reinforced air rubber tube are provided with hose clamps. Cathode wires located inside the fabric-reinforced air rubber tubes are connected to the two connectors, and the outer ends of the connectors are connected to the corresponding cathode nuts. The anode water-cooled cable includes two connectors, two anode nuts, and a metal corrugated pipe. The two ends of the metal corrugated pipe are welded to the two connectors, and a braided pressure ring is provided on the outside of the weld between the metal corrugated pipe and the connector. Anode wires located inside the metal corrugated pipe are connected to the two connectors, and the outer end of the connector is connected to the corresponding anode nut.

[0006] As a further feature of the above solution, both the connector and the connecting pipe are machined from brass or stainless steel tubing, and the outer circular surfaces of the ends of the connector and the connecting pipe are provided with steps that fit tightly against the cathode nut and the anode nut.

[0007] As a further feature of the above solution, both the connector and the connecting pipe are provided with multiple wire grooves for welding cathode wires and anode wires.

[0008] As a further provision of the above scheme, there are 2 to 8 cathode wires and anode wires, and both cathode wires and anode wires can be any one of stainless steel wire, copper wire or enameled wire, with a diameter between 2 and 4 mm.

[0009] As a further feature of the above solution, a locking ring groove is provided on the outer circular surface of the connector to cooperate with the hose clamp and seal and lock the fabric-reinforced air rubber tube.

[0010] As a further feature of the above scheme, the connector has one or more locking ring grooves, and the number of hose clamps on the fabric-reinforced air rubber hose is equal to the number of locking ring grooves.

[0011] As a further feature of the above solution, both the cathode nut and the anode nut are provided with silicone sealing rings.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The cathode water-cooled cable of this utility model can lock and seal the end of the cloth-reinforced air rubber tube at the locking ring groove through the hose clamp, avoiding the problems of easy water leakage and easy damage at the joint during disassembly and assembly, reducing the maintenance cost of the equipment and the safety hazards during operation.

[0013] 2. The cathode water-cooled cable of this utility model connects multiple cathode wires for current conduction to two joints and places them inside a cloth-reinforced air rubber tube, so that the cathode water-cooled cable has a good three-layer effect of water cooling, current conduction and insulation.

[0014] 3. In this utility model, a braided retaining ring is added to the outside of the weld between the anode water-cooled cable and the metal corrugated pipe for fastening, which further ensures the firmness and sealing between the components, and extends its service life while ensuring performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the external planar structure of the cathode water-cooled cable in this utility model; Figure 2 This is a schematic diagram of the internal planar structure of the end of the cathode water-cooled cable in this utility model; Figure 3 This is a schematic diagram of the end side view of the cathode water-cooled cable in this utility model; Figure 4 This is a schematic diagram of the planar structure of the connector in this utility model; Figure 5 This is a schematic diagram of the external planar structure of the anode water-cooled cable in this utility model; Figure 6 This is a schematic diagram of the internal planar structure of the end of the cathode water-cooled cable in this utility model. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-6 This application will be described in detail with reference to the embodiments.

[0019] Example 1

[0020] Example 1 discloses a water-cooled cable for a plasma torch, including a cathode water-cooled cable 100 and an anode water-cooled cable 200.

[0021] Reference Appendix Figures 1-4 The cathode water-cooled cable 100 includes two connectors 101, two cathode nuts 102, and a cloth-reinforced air rubber tube 103. The connector 101 is machined from a brass or stainless steel tube. One end of the connector 101 has an outwardly protruding step 1021 on its outer circular surface that interacts with the cathode nut 102. The other end of the connector 101 has a plurality of wire grooves 1022 evenly distributed on its outer circular surface or inner wall. One or more locking ring grooves 1023 are formed on the outer circular surface of the connector 101 between the wire grooves 1022 and the step 1021.

[0022] Two cathode nuts 102 are tightly connected to the steps 1021 on the two connectors 2 respectively. Then, multiple cathode wires 104 are arranged between the wire grooves 1022 on the two connectors 2. When the cathode wires 104 are connected to the wire grooves 1022, the cathode wires 104 are welded to the corresponding wire grooves 1022 by welding. Thus, the current can be conducted between the two connectors 2 and the two cathode nuts 102 through the action of multiple cathode wires 104.

[0023] The two ends of the fabric-reinforced air rubber hose 103 are fitted onto the outer circumference of the two connectors 101. A hose clamp 105 is also provided on the fabric-reinforced air rubber hose 103 at the corresponding position of each locking ring groove 1023. The locking action of the hose clamp 105 allows the ends of the fabric-reinforced air rubber hose 103 to be radially contracted, thereby sealing and locking it onto the locking ring groove 1023, providing a good waterproof effect at the connection. In specific design, the fabric-reinforced air rubber hose 5 is a multi-layer fabric-reinforced air rubber hose, with the specific number of fabric layers set between 6 and 9. The cathode wires 104 between the two connectors 2 can be evenly arranged circumferentially between 2 and 8 wires. The cathode wires 104 can be stainless steel wire, copper wire, or enameled wire, with a diameter set between 2 and 4 mm.

[0024] Reference Appendix Figures 5-6 The anode water-cooled cable 200 includes two connectors 201, two anode nuts 202, and a metal corrugated pipe 203. The connectors 201 are also machined from brass or stainless steel tubes. One end of the connector has a step that protrudes outward and interacts with the anode nuts 202 on its outer surface, and the other end of the connector has multiple wire grooves on its inner wall.

[0025] Two connecting pipes 201 are respectively sealed and welded to both ends of the metal bellows 203. Then, 2 to 8 anode wires 204 are also welded between the wire grooves on the inner wall of the two connecting pipes 201. The anode wires 204 can be stainless steel wire, copper wire, or enameled wire, with a diameter between 2 and 4 mm. The two connecting pipes 201 are tightly fitted to the anode nuts 202 by the set steps. Finally, a mesh sleeve pressure ring 205 is set on the outside of the weld between the connecting pipes 201 and the metal bellows 203 to fix the two together again.

[0026] When the plasma torch is running, the DC power output is connected via cable to the plasma torch control cabinet of the corresponding subsystem, and then via cathode and anode water-cooled cables to the respective plasma torches. Inside the plasma torch control cabinet, the anode (positive terminal of the DC power supply) is grounded and connected to the anode of the plasma igniter via anode water-cooled cable 200. Because the igniter anode is connected to the outer casing, grounding is implemented to ensure the safety of the plasma torch and prevent the casing from becoming energized. The cathode (negative terminal of the DC power supply) is connected to the cathode of the plasma igniter via cathode water-cooled cable 100 and carries a higher voltage; therefore, the cathode water-cooled cable must be insulated from external sources while being energized and supplied with water.

[0027] When connecting the cathode water-cooled cable 100, two cathode nuts 102 are equipped with silicone sealing rings. One end of the cathode water-cooled cable 100 is connected to the cathode of the plasma torch control cabinet through the cathode nut 102, and the other end is connected to the cathode of the plasma torch through another cathode nut 102. The connected cathode water-cooled cable 100 can achieve the triple functions of internal water flow, electrical conduction and external insulation.

[0028] When connecting the anode water-cooled cable 200, silicone sealing rings are also provided inside the two anode nuts 202. One end of the anode water-cooled cable 200 is connected to the anode of the plasma torch control cabinet through the anode nut 202, and the other end is connected to the anode of the plasma torch through another anode nut 202.

[0029] The above are merely preferred embodiments of the present utility model and are 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 water-cooled cable for a plasma torch, comprising a cathode water-cooled cable and an anode water-cooled cable, characterized in that, The cathode water-cooled cable includes two connectors, two cathode nuts, and a cloth-reinforced air rubber tube. The two ends of the cloth-reinforced air rubber tube are respectively sleeved on the outer circular surface of the two connectors, and the ends of the cloth-reinforced air rubber tube are provided with hose clamps. The two connectors are connected to cathode wires located inside the cloth-reinforced air rubber tubes, and the outer ends of the connectors are connected to the corresponding cathode nuts. The anode water-cooled cable includes two connectors, two anode nuts, and a metal corrugated pipe. The two ends of the metal corrugated pipe are welded to the two connectors, and a braided pressure ring is provided on the outside of the weld between the metal corrugated pipe and the connector. Anode wires located inside the metal corrugated pipe are connected to the two connectors, and the outer end of the connector is connected to the corresponding anode nut.

2. The water-cooled cable for a plasma torch according to claim 1, characterized in that, Both the connector and the connecting pipe are machined from brass or stainless steel tubing, and the outer circular surfaces of the ends of the connector and the connecting pipe are provided with steps that fit tightly against the cathode nut and the anode nut.

3. A water-cooled cable for a plasma torch according to claim 2, characterized in that, Both the connector and the connecting pipe have multiple wire grooves for welding cathode wires and anode wires.

4. A water-cooled cable for a plasma torch according to claim 3, characterized in that, The cathode wire and anode wire are provided with 2 to 8 wires, and the cathode wire and anode wire are any one of stainless steel wire, copper wire or enameled wire, with a diameter between 2 and 4 mm.

5. A water-cooled cable for a plasma torch according to claim 2, characterized in that, The outer circular surface of the connector is provided with a locking ring groove that cooperates with the hose clamp to seal and lock the fabric-reinforced air rubber tube.

6. A water-cooled cable for a plasma torch according to claim 5, characterized in that, The connector has one or more locking ring grooves, and the number of hose clamps on the fabric-reinforced air rubber hose is equal to the number of locking ring grooves.

7. A water-cooled cable for a plasma torch according to claim 1, characterized in that, Both the cathode nut and the anode nut are equipped with silicone sealing rings.

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