A cutting torch apparatus for teaching flame cutting

Abstract

This application discloses a flame cutting torch device for teaching purposes, aimed at improving safety during training. The device includes: a cutting torch, an oxygen cylinder, a gas cylinder, a controller, and a shut-off valve; the cutting torch is connected to the oxygen cylinder via an oxygen pipe, and the cutting torch is connected to the gas cylinder via a gas pipe; the shut-off valve includes a first shut-off valve disposed on the oxygen pipe and a second shut-off valve disposed on the gas pipe; the controller is communicatively connected to both the first and second shut-off valves, and is controlled to simultaneously close both valves.

Description

Technical Field

[0001] This application relates to the field of flame cutting equipment technology, and in particular to a flame cutting gun device for teaching purposes. Background Technology

[0002] Flame cutting technology is an important industrial skill widely used in machinery manufacturing, steel structure construction, and other fields. Therefore, flame cutting gun operation training is essential for students and new employees in vocational schools, training centers, and large construction sites. During training, students need to familiarize themselves with the equipment and improve their proficiency through hands-on operation. However, due to inexperience and unstable psychological states, students are prone to backfire accidents caused by improper operation. When backfire occurs, students often forget the standard operating procedures due to nervousness and are unable to handle the emergency effectively and promptly.

[0003] In existing training practices, instructors or supervisors usually closely observe trainees' operations. If a backfire sign or accident is detected, they immediately run to the location of the acetylene and oxygen cylinders, manually close the cylinder valves, and thus prevent the backfire from spreading and avoid the accident from escalating.

[0004] However, due to the long safe distance between the gas cylinder and the open flame work area, it takes time for the monitoring personnel to travel from the observation point to the gas cylinder, which may result in the backfire flame already burning the hose or even the gas cylinder, posing a significant safety risk. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a flame cutting gun teaching device that can improve the safety of the training process.

[0006] The technical solution provided in this application is described below: This application provides a flame cutting torch device for teaching flame cutting, comprising: The device includes a cutting torch, an oxygen cylinder, a gas cylinder, a controller, and a shut-off valve. The cutting torch is connected to the oxygen cylinder via an oxygen pipe, and the cutting torch is connected to the gas cylinder via a gas pipe. The shut-off valve includes a first shut-off valve disposed on the oxygen pipe and a second shut-off valve disposed on the gas pipe. The controller is communicatively connected to the first shut-off valve and the second shut-off valve, and the controller is controlled to simultaneously close the first shut-off valve and the second shut-off valve.

[0007] Optionally, the cutting torch device further includes a first movable frame and a second movable frame, wherein the first movable frame is used to fix the oxygen cylinder and the second movable frame is used to fix the gas cylinder.

[0008] Optionally, the side of the first movable frame is provided with an arc-shaped support rod, which is used to support the oxygen tube.

[0009] Optionally, the shut-off valve is an explosion-proof solenoid valve.

[0010] Optionally, the explosion-proof solenoid valve is connected to a power supply via a control box, and the control box is signal-connected to the controller.

[0011] Optionally, the cutting torch device further includes a temperature sensor, which is disposed in the air chamber inside the cutting torch and is signal-connected to the control box.

[0012] Optionally, the first shut-off valve is installed at the outlet port of the oxygen cylinder, and the second shut-off valve is installed at the outlet port of the gas cylinder.

[0013] Optionally, the cutting torch device further includes a flashback preventer, which is respectively disposed between the gas pipe and the gas cylinder, and between the oxygen pipe and the oxygen cylinder.

[0014] Optionally, the controller and the shut-off valve are connected via a wired cable or a wireless radio frequency module.

[0015] Optionally, the controller is a handheld remote control, and the surface of the handheld remote control is provided with an emergency stop button.

[0016] As can be seen from the above technical solutions, this application has the following beneficial effects: This application involves installing a first shut-off valve on the oxygen pipeline and a second shut-off valve on the gas pipeline. The first and second shut-off valves are remotely controlled by a controller, allowing them to simultaneously cut off the supply of both oxygen and gas. Therefore, in the event of an emergency such as backfire during training, monitoring personnel do not need to travel long distances to the gas cylinder; they can instantly and remotely cut off the gas supply from a safe distance. This significantly shortens the response time from the discovery of the hazard to its handling, effectively preventing the backfire flame from spreading to the gas supply pipeline and even the gas cylinder itself. It solves the problem of accidents potentially escalating due to untimely human intervention, and improves the safety and reliability of the training process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a flame cutting gun device for teaching purposes according to this application; Figure 2 This is a schematic diagram of a cutting torch in a flame cutting torch teaching device according to this application; Figure 3 This is a schematic diagram of a flashback preventer in a flame cutting gun teaching device according to this application; In the diagram, the components are: cutting torch 01, oxygen cylinder 02, gas cylinder 03, controller 04, first shut-off valve 05, second shut-off valve 06, first moving frame 07, second moving frame 08, arc-shaped support rod 09, control box 10, temperature sensor 11, gas chamber 12, flashback arrestor 13, oxygen pipe 14, gas pipe 15. Detailed Implementation

[0018] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and other terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to describe the relative positional relationship between the components or parts and do not specifically limit the specific installation orientation of each component or part.

[0019] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0020] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0021] Furthermore, the structures, proportions, sizes, etc., drawn in the accompanying drawings of this application are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0022] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] See Figures 1 to 3This application provides an embodiment of a flame cutting torch device for teaching flame cutting, the embodiment including: The device includes a cutting torch 01, an oxygen cylinder 02, a gas cylinder 03, a controller 04, and a shut-off valve. The cutting torch 01 is connected to the oxygen cylinder 02 via an oxygen pipe 14, and the cutting torch 01 is connected to the gas cylinder 03 via a gas pipe 15. The shut-off valve includes a first shut-off valve 05 disposed on the oxygen pipe 14 and a second shut-off valve 06 disposed on the gas pipe 15. The controller 04 is communicatively connected to the first shut-off valve 05 and the second shut-off valve 06, and the controller 04 is controlled to control the first shut-off valve 05 and the second shut-off valve 06 to close simultaneously.

[0024] The cutting torch 01 has a nozzle and other structures that can mix oxygen and fuel gas in a certain proportion and then spray it out to form a high-temperature flame for cutting materials such as metal. During the training, trainees practice various cutting actions by holding the cutting torch 01 to familiarize themselves with the operating techniques and procedures of flame cutting.

[0025] Oxygen cylinder 02 is a container for storing oxygen, providing the necessary combustion-supporting gas for flame cutting. Gas cylinder 03 is used to store combustible gases, such as acetylene and propane. The gas is delivered to the cutting torch 01 through gas pipe 15, where it mixes with oxygen (delivered by oxygen pipe 14) to form a combustible mixture, which is then ignited to produce a cutting flame.

[0026] The first shut-off valve 05 is installed on the oxygen pipe 14 to control the flow of oxygen. When it is necessary to cut off the oxygen supply, the first shut-off valve 05 can be quickly closed to prevent oxygen from continuing to flow to the cutting torch 01, thereby eliminating the combustion-supporting conditions for flame combustion.

[0027] The second shut-off valve 06 is installed on the gas pipe 15 to control the flow of gas. In an emergency, closing the second shut-off valve 06 can cut off the gas supply, depriving the flame of its fuel source, thereby extinguishing the fire and preventing the accident from escalating.

[0028] The controller 04 is capable of communicating with the first shut-off valve 05 and the second shut-off valve 06. The controller 04 can receive external commands (such as instructions from the instructor) and control the closing of the first shut-off valve 05 and the second shut-off valve 06 accordingly. The controller 04 has simple operation buttons for easy operation by instructors or supervisors in emergency situations.

[0029] In the event of an emergency such as backfire during training, the instructor or supervisor can simultaneously issue a closing command to the first shut-off valve 05 and the second shut-off valve 06 via the controller 04. This quickly controls the first shut-off valve 05 to close the oxygen pipe 14, preventing further oxygen supply; simultaneously, it controls the second shut-off valve 06 to close the gas pipe 15, cutting off the gas supply. Because both oxygen and gas are simultaneously cut off, the flame extinguishes rapidly due to the loss of oxidizing gas and fuel, effectively preventing the further escalation of the backfire and ensuring the safety of the trainees and the training environment.

[0030] In this embodiment, by setting a first shut-off valve 05 on the oxygen pipe 14 and a second shut-off valve 06 on the gas pipe 15, the controller 04 remotely controls the first shut-off valve 05 and the second shut-off valve 06, enabling the first shut-off valve 05 and the second shut-off valve 06 to simultaneously cut off the supply of oxygen and gas. Thus, when an emergency such as backfire occurs during training, the monitoring personnel do not need to travel a long distance to the gas cylinder and can instantly cut off the gas source from a safe distance. This greatly shortens the response time from the discovery of the danger to the handling of the danger, effectively prevents the backfire flame from spreading to the gas supply pipeline and even the gas cylinder itself, solves the problem that the accident may be escalated due to untimely human intervention, and improves the safety and reliability of the training process.

[0031] In an optional embodiment, the cutting torch 01 device further includes a first movable frame 07 and a second movable frame 08, the first movable frame 07 being used to fix the oxygen cylinder 02 and the second movable frame 08 being used to fix the gas cylinder 03.

[0032] Both the first movable frame 07 and the second movable frame 08 are made of metal materials, such as steel. The oxygen cylinder 02 is fixed to the first movable frame 07, allowing for its movement. Similarly, the gas cylinder 03 is fixed to the second movable frame 08, allowing for the movement of the oxygen cylinder 02. In this embodiment, the first movable frame 07 and the second movable frame 08 facilitate the movement of the gas cylinders, enabling their rapid deployment to training / examination locations.

[0033] It should be noted that there is at least a 5-meter gap between oxygen cylinder 02 and gas cylinder 03. Therefore, the distance between them can be quickly adjusted by using the first moving frame 07 and the second moving frame 08, which greatly saves manpower.

[0034] In this optional embodiment, an arc-shaped support rod 09 is provided on the side of the first movable frame 07, which is used to support the oxygen tube 14.

[0035] To facilitate the storage of the oxygen tube 14, an arc-shaped support rod 09 is provided on the side of the first movable frame 07. When the cutting torch 01 is not in use, the oxygen tube 14 can be rolled up and hung on the arc-shaped support rod 09 to achieve storage.

[0036] The arc-shaped support rod 09 is located on one side of the handle of the first movable frame 07, below the handle of the first movable frame 07, and is integrally formed with the first movable frame 07.

[0037] It is understandable that the gas pipe 15 can also be stored on the first movable frame 07. Alternatively, an arc-shaped support rod 09 can also be provided on the second movable frame 08 to store the gas pipe 15 on the arc-shaped support rod 09 of the second movable frame 08.

[0038] In one optional embodiment, the shut-off valve is an explosion-proof solenoid valve. The explosion-proof solenoid valve has an extremely fast response speed and can complete the opening or closing action in a very short time (typically in the millisecond range) after receiving an electrical signal (issued by controller 04).

[0039] In this embodiment, the explosion-proof solenoid valve serves as a shut-off valve and is installed on both the oxygen pipe 14 and the gas pipe 15. When the trainee is using the cutting torch 01 normally, the explosion-proof solenoid valve remains open, allowing oxygen and gas to be smoothly delivered to the cutting torch 01 through the pipes to form a cutting flame. In the event of backfire, the monitoring personnel control the explosion-proof solenoid valve to close quickly via the controller 04, cutting off the supply of oxygen and gas, thereby extinguishing the flame and preventing an accident.

[0040] In this optional embodiment, the explosion-proof solenoid valve is connected to a power supply (220V AC) via a control box 10, and the control box 10 is signal-connected to the controller 04.

[0041] The control box 10 contains a power conversion module, a voltage regulator circuit, and an overload protection device, which can provide a stable and reliable power supply for the explosion-proof solenoid valve, while preventing damage to the solenoid valve due to power fluctuations or overload.

[0042] The control box 10 receives signals from the controller 04 and converts these signals into electrical signals that can drive the explosion-proof solenoid valve. Under normal use, the explosion-proof solenoid valve is normally open. In the event of backfire, the valve is closed by the monitoring personnel. When the cutting torch 01 is used again, the explosion-proof solenoid valve should be opened manually to prevent accidental opening.

[0043] It is understandable that the controller 04 and the control box 10 can communicate via wired means or via wireless means (such as Wi-Fi, Bluetooth, etc.).

[0044] In this optional embodiment, the cutting torch 01 device also includes a temperature sensor 11, which is disposed in the air chamber 12 inside the cutting torch 01 and is connected to the control box 10 via a signal.

[0045] The gas chamber 12 can be a channel for supplying gas within the cutting torch 01, or it can be a channel for supplying oxygen; in another possible embodiment, the gas chamber 12 can also be a chamber within the cutting torch 01 where gas and oxygen are mixed.

[0046] Temperature sensor 11 is used to monitor the temperature of the air chamber 12 inside the cutting torch 01 in real time. By monitoring temperature changes, abnormal situations such as backfire can be detected in time (the instantaneous temperature reaches the preset temperature value, such as 50 degrees, 60 degrees, etc.), and this abnormal change is transmitted to the control box 10, which controls the explosion-proof solenoid valve to close to prevent the accident from escalating.

[0047] In an optional embodiment, a first shut-off valve 05 is installed at the outlet port of oxygen cylinder 02, and a second shut-off valve 06 is installed at the outlet port of gas cylinder 03.

[0048] In an optional embodiment, the cutting torch 01 device further includes a flashback preventer 13, which is respectively disposed between the gas pipe 15 and the gas cylinder 03, and between the oxygen pipe 14 and the oxygen cylinder 02.

[0049] The backfire preventer 13 is installed close to the outlet of the gas cylinder 03 and the oxygen cylinder 02, such as immediately after the valve at the outlet of the gas cylinder.

[0050] The flashback arrestor 13 is internally equipped with flame-arresting elements, such as wire mesh or corrugated plates. When a flame flows backward into the pipe and enters the flashback arrestor 13, the porous structure of the flame-arresting elements rapidly disperses the heat of the flame. As the flame passes through these tiny pores, the temperature drops rapidly below the ignition point of the gas due to the accelerated heat dissipation, thus extinguishing the flame and preventing the spread of flashback.

[0051] In an optional embodiment, the controller 04 is connected to the shut-off valve via a wired cable or a wireless radio frequency module.

[0052] In an optional embodiment, the controller 04 is a handheld remote control with an emergency stop button on its surface.

[0053] In actual use, the handheld remote control is held by the supervisor, who observes the trainee's actions at the trainee's operating point. When backfire occurs, the supervisor immediately presses the emergency stop button on the handheld remote control to simultaneously close the shut-off valves on the pipelines (oxygen pipe 14 and gas pipe 15).

Claims

1. A flame cutting torch for teaching purposes, characterized in that, include: The device includes a cutting torch, an oxygen cylinder, a gas cylinder, a controller, and a shut-off valve. The cutting torch is connected to the oxygen cylinder via an oxygen pipe, and the cutting torch is connected to the gas cylinder via a gas pipe. The shut-off valve includes a first shut-off valve disposed on the oxygen pipe and a second shut-off valve disposed on the gas pipe. The controller is communicatively connected to the first shut-off valve and the second shut-off valve, and the controller is controlled to simultaneously close the first shut-off valve and the second shut-off valve. The cutting torch device also includes a flashback preventer, which is respectively disposed between the gas pipe and the gas cylinder, and between the oxygen pipe and the oxygen cylinder.

2. The cutting torch device according to claim 1, characterized in that, The cutting torch device also includes a first movable frame and a second movable frame, the first movable frame being used to fix the oxygen cylinder and the second movable frame being used to fix the gas cylinder.

3. The cutting torch device according to claim 2, characterized in that, The first movable frame is provided with an arc-shaped support rod on its side, which is used to support the oxygen tube.

4. The cutting torch device according to any one of claims 1 to 3, characterized in that, The shut-off valve is an explosion-proof solenoid valve.

5. The cutting torch device according to claim 4, characterized in that, The explosion-proof solenoid valve is connected to the power supply via a control box, and the control box is connected to the controller via a signal connection.

6. The cutting torch device according to claim 5, characterized in that, The cutting torch also includes a temperature sensor, which is located in the air chamber inside the cutting torch and is connected to the control box via a signal.

7. The cutting torch device according to any one of claims 1 to 3, characterized in that, The first shut-off valve is installed at the outlet port of the oxygen cylinder, and the second shut-off valve is installed at the outlet port of the gas cylinder.

8. The cutting torch device according to any one of claims 1 to 3, characterized in that, The controller and the shut-off valve are connected via a wired cable or a wireless radio frequency module.

9. The cutting torch device according to any one of claims 1 to 3, characterized in that, The controller is a handheld remote control, and the surface of the handheld remote control is provided with an emergency stop button.

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