Plasma electric flame welding equipment

Abstract

The utility model discloses plasma electric flame welding equipment which comprises an integrated control cabinet, and a plasma generator, a power supply, a water cooling system and an air supply system are integrated in an inner cavity of the integrated control cabinet. The plasma generator adopts a metal electrode and generates a direct-current non-transferred arc; the gas supply system provides air or nitrogen as carrier gas. The surface of the control integrated cabinet is provided with a moving handle connected with the plasma generator, and the bottom is provided with pulleys. The direct-current non-transferred arc is combined with specific carrier gas, stable and uniform plasma arc is generated, the problems of non-uniform heat input and gas explosion-proof safety of traditional welding are solved, and the device is high in integration degree, convenient to move, energy-saving and safe.

Description

Technical Field

[0001] This utility model relates to the field of plasma application equipment technology, specifically a plasma electric flame welding device. Background Technology

[0002] With the rapid development of modern industry, welding technology, as one of the main technologies in product manufacturing, has begun to transform from manual welding to efficient automated welding, among which plasma welding technology is the most widely used. Abroad, plasma technology has been widely adopted in the manufacture of stainless steel medium and thin plates.

[0003] Currently, the main problem with this technology is that the welding process is highly temperature-dependent. If the temperature is too low, it will affect the welding quality and material properties. The welding current and arc voltage will also affect the intensity, distribution and movement of the welding heat source, thereby affecting the melting range and solidification process of the weld. This will result in uneven heat input, heat distribution and thermal stress in the weld, which will easily lead to welding defects.

[0004] Currently, this technology still faces the problem of gas pipeline explosion prevention. When using gas, environmental safety and explosion-proof factors must be strictly controlled to prevent safety accidents and improve the effectiveness and safety of use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a plasma electric flame welding device that solves the problems of uneven heat input, heat distribution, and thermal stress in current welding technologies, which easily lead to welding defects, as well as the issue of explosion-proof gas pipelines.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a plasma electric flame welding device, including an integrated control cabinet, the inner cavity of which is provided with a plasma generator, a power supply, a water cooling system and a gas supply system, and a movable handle is provided on the surface of the integrated control cabinet through a connector, wherein a KCD1 rocker switch is provided on the top of the movable handle, and the movable handle is connected to the plasma generator.

[0007] Preferably, the control cabinet has a door on its surface, and a display panel is fixedly installed on the surface of the door.

[0008] Preferably, the bottom of the integrated control cabinet is symmetrically equipped with casters, which make it convenient and quick to carry and move.

[0009] Preferably, the plasma generator, power supply, water cooling system, and gas supply system are electrically connected to each other.

[0010] This invention provides a plasma electric flame welding device. Compared with the prior art, it has the following advantages:

[0011] 1. This plasma electric flame welding equipment utilizes metal electrodes and a DC non-transfer arc to create a uniform electric and gas flow field, generating a relatively stable plasma with high temperature, stable arc shape, and moderate flame length. The ion module operates stably and can be used independently or installed on a production line for continuous production. It boasts low gas costs, using either N2 or air. The system is complete, requiring only a power supply to operate; it can be turned on and off immediately after use, offering energy efficiency and convenient portability and relocation. This equipment can be quickly replicated to establish mass production lines according to production needs.

[0012] 2. This plasma electric flame welding equipment can ensure the temperature of the flame through a water cooling system. In addition, the use of air as a carrier gas can reduce flammability. The absence of pressure and the safety and convenience of the moving handle can greatly reduce on-site safety hazards. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram showing the connection between the moving handle and the plasma generator in this utility model.

[0016] Figure 4 This is a schematic diagram of the plasma generator structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the structural process of this utility model.

[0018] In the diagram: 1. Control cabinet; 2. Moving handle; 3. Pulley; 4. Cabinet door; 5. Display panel; 6. Water cooling system; 7. Gas supply system; 8. Power supply; 9. Plasma generator. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5This utility model provides a technical solution: a plasma electric flame welding device, including a control cabinet 1. The inner cavity of the control cabinet 1 is equipped with a plasma generator 9, a power supply 8, a water cooling system 6 and an air supply system 7, wherein the air supply system 7 is an air compressor, and the plasma generator 9, the power supply 8, the water cooling system 6 and the air supply system 7 are electrically connected to each other.

[0021] The plasma generator uses nitrogen as the carrier gas, which has low gas cost. The ion module works stably and can be used independently or installed on the production line to achieve continuous production. The plasma generator 9 produces a flame width of ≥5cm, high temperature, stable arc shape, and moderate flame length. It uses metal electrodes and a DC non-transfer arc to form a uniform electric field and gas flow field, generating a relatively stable plasma. Plasma is an electrically neutral substance composed of unbound ions.

[0022] The flame generated by the plasma generator 9 is the plasma torch, which is an inductively coupled high-frequency plasma torch, a widely used light source in atomic spectroscopy analysis.

[0023] Specifically, it forms a high-enthalpy plasma jet by ionizing the working gas between the cathode and anode, with temperatures reaching over 10,000℃. Utilizing this high-temperature plasma jet, the flame has a fast response speed, can be turned on and off immediately after use, and is energy-efficient and highly effective. Compared to gas combustion engineering applications where most of the gas flow is continuously supplied, leading to significant gas waste and pollution, the equipment using a plasma torch is more energy-efficient and efficient, and also reduces the hassle of arranging and installing combustible gas pipelines and the requirements for explosion-proof protection.

[0024] The surface of the control cabinet 1 is equipped with a movable handle 2 via connectors. Considering the safety and convenience of use, as well as the high temperature of the torch, a dedicated movable handle 2 is designed and adopts an integrated mold form. The movable handle 2 is connected to the plasma generator 9.

[0025] The control cabinet has a cabinet door 4 on its surface, and a display panel 5 is fixedly installed on the surface of the cabinet door 4.

[0026] The bottom of the control cabinet is symmetrically equipped with casters 3, which make it easy and quick to carry and move.

[0027] The integrated control cabinet integrates the plasma generator 9, power supply 8, water cooling system 6, and gas supply system 7 into a single cabinet, forming a complete unit. This facilitates on-site installation and commissioning, features a user-friendly interface, and supports data export via USB. The equipment can be quickly replicated according to production needs, enabling the establishment of mass production lines.

[0028] Secondly, the input power supply is AC380V, three-phase five-wire. During the design and manufacturing process, the outer shell of the control cabinet 1 is completely grounded, and the withstand voltage rating of the whole machine to ground is not less than DC1500V. The equipment is also equipped with interlocking protection mechanisms such as water leakage protection and leakage current protection, and the equipment has a one-button emergency stop function in case of emergency.

[0029] The device can maintain the flame temperature through the water cooling system 6. In addition, the use of nitrogen as a carrier gas can reduce flammability, eliminate pressure, and ensure the safety and convenience of the moving handle 2, thereby greatly reducing on-site safety hazards.

[0030] At work

[0031] Power supply and startup: The equipment is powered by AC380V three-phase five-wire power supply through power supply 8. After the display panel 5 is connected to power supply 8, the plasma generator 9, gas supply system 7 and water cooling system 6 are started.

[0032] Gas supply: The gas supply system 7 is an air compressor that provides air as the carrier gas. Air has a low cost and can be obtained directly from the atmosphere for free, which helps to reduce costs and environmental impact.

[0033] Cooling: The water cooling system 6 uses circulating water to absorb and remove the heat generated by the plasma generator 9, ensuring that the temperature of the plasma generator is maintained in a controllable state.

[0034] Plasma generation: The plasma generator 9 ionizes the working gas, mainly nitrogen, through discharge between the cathode and anode to form a plasma jet. This process is carried out under DC non-transfer arc conditions, thereby forming a uniform electric field and gas flow field.

[0035] Plasma jet control: The flame width of the plasma jet is controlled at ≥5cm, the temperature is high, the arc shape is stable, and the flame length is moderate. Such plasma jet can provide good welding effect and make the flame spray outward through the moving handle 2.

[0036] Welding process: A high-enthalpy plasma jet is sprayed onto the surface of the material to be welded to perform the welding operation. Due to the high temperature and energy of the plasma jet, the welding material can be rapidly heated to a molten state, thus achieving welding.

[0037] Energy-efficient and high-performance: Compared with traditional gas combustion welding methods, plasma electric flame welding equipment can quickly turn the plasma jet on and off during the welding process, thus achieving energy efficiency. At the same time, it avoids the need for flammable gas pipelines and explosion-proof requirements, further reducing energy waste and environmental pollution.

[0038] Mobile handle and control: The equipment surface is equipped with a mobile handle 2 for easy operation. The integrated control cabinet 1 centralizes all power supply, water supply, gas supply, control and display systems, facilitating on-site installation and commissioning.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plasma electric torch welding apparatus comprising a control unit cabinet, characterized in that: The inner cavity of the control integrated cabinet (1) is provided with a plasma generator (9), a power supply (8), a water cooling system (6) and a gas supply system (7), and the surface of the control integrated cabinet (1) is provided with a moving handle (2) through a connecting piece, wherein the moving handle (2) is connected with the plasma generator (9). The plasma generator adopts a metal electrode and generates a direct current non-transferred arc. The gas supply system (7) is used for providing air or nitrogen as a carrier gas to the plasma generator.

2. A plasma torch welding apparatus as defined in claim 1, wherein: The bottom of the control integrated cabinet (1) is symmetrically provided with a pulley (3).

3. A plasma torch welding apparatus as defined in claim 2, wherein: The surface of the control integrated cabinet (1) is provided with a cabinet door (4).

4. A plasma torch welding apparatus as defined in claim 3, wherein: The surface of the cabinet door (4) is fixedly provided with a display panel (5).

5. A plasma torch welding apparatus as defined in claim 1, wherein: The plasma generator (9), the power supply (8), the water cooling system (6) and the gas supply system (7) are electrically connected with each other.

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