Portable flexible gas protection device capable of being isolated from flammable and explosive environment and used for welding repair

Abstract

The utility model discloses a portable flexible gas protection device capable of being isolated from a flammable and explosive environment for welding repair, relates to the field of welding repair, and aims to solve the problems of improving the equipment maintenance efficiency, reducing the safety risk and avoiding economic loss caused by long-time equipment shutdown. The device comprises a moving trolley, a telescopic supporting device, operation gloves, an observation window, a welding gun, a welding power source, an argon bottle, a water tank, an air inlet valve, a change-over valve, a tool box and high-temperature heat insulation cotton. According to the utility model, the damaged part of the equipment is surrounded, and the isolation cabin device is filled with argon, so that the repair environment can be isolated from the surrounding inflammable and explosive environment in the welding repair process, and the potential safety hazard is thoroughly avoided. The device disclosed by the utility model can be used for directly carrying out welding repair work in a flammable and explosive environment, so that the repair efficiency of equipment can be greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of welding repair, and in particular relates to a portable flexible gas protection device for welding repair which can be isolated from an inflammable and explosive environment. Background Art

[0002] In the field of coal mining, the geological types of coal mines are complex, and various types of mining equipment are prone to wear and even breakage during use. In order to ensure mining efficiency, damaged mining equipment must be repaired by welding. However, due to the complex environment underground in the mine, the gas contains a large amount of gas and dust, which is prone to explosion when exposed to open flames. It is very dangerous and cannot be repaired by welding underground.

[0003] Usually, when repairing such equipment, the damaged parts need to be disassembled, lifted up to the well for repair, and then installed again after the repair is completed. However, the disassembly of damaged parts requires a large number of personnel, frequent lifting operations, and long transportation distances, which poses great safety hazards. In addition, the equipment needs to be stopped for a certain period of time after disassembly, which seriously delays working hours and reduces production efficiency. It is of great engineering value to develop a welding repair device that can be isolated from flammable and explosive environments.

[0004] In many fields such as chemical industry, natural gas and field equipment operation, repair welding is also in great demand, which requires both isolation from flammable and explosive environments and portable and flexible welding protection devices. Therefore, the development of welding repair devices that can be isolated from flammable and explosive environments and have portable and flexible characteristics has broad application prospects. Utility Model Content

[0005] The purpose of the utility model is to solve the problem of improving equipment maintenance efficiency, reducing safety risks and avoiding economic losses caused by long-term equipment downtime, and to provide a portable flexible gas protection device for welding repair that can be isolated from flammable and explosive environments.

[0006] The utility model discloses a portable flexible gas protection device for welding repair which can be isolated from an inflammable and explosive environment. The portable flexible gas protection device comprises a flexible gas protection device body, a mobile vehicle, a retractable support device, a welding power source and an argon gas cylinder.

[0007] The retractable support device, argon gas cylinder and water tank are all arranged on the mobile vehicle; the flexible gas protection device body is composed of a retractable frame and an insulating layer; the insulating layer is filled on the retractable frame; the flexible gas protection device body is provided with a welding gun, operating gloves, a tool box and lighting equipment; the welding power supply is electrically connected to the welding gun; the gas outlet of the argon gas cylinder is connected to the gas inlet of the flexible gas protection device body; the retractable support device is composed of a retractable tube; the bottom of the retractable support device is fixedly connected to the upper surface of the mobile vehicle, the top is connected to one end of the bending tube, and the other end of the bending tube is fixedly connected to the top of the retractable frame of the flexible gas protection device body; an observation window is provided on the flexible gas protection device body.

[0008] The device of the utility model can directly perform welding repair work in an inflammable and explosive environment, which can greatly improve the repair efficiency of the equipment.

[0009] The utility model has the following beneficial effects:

[0010] 1. The gas protection device developed by this patent can realize direct welding repair work in various flammable and explosive occasions. During the repair process, the generated open flame can be isolated from the flammable and explosive working environment to achieve safe operation;

[0011] Second, the device can simplify the production process and significantly reduce the work intensity and cost of traditional repair of damaged equipment (moving the damaged equipment to an area without flammable and explosive gases). It can avoid economic losses caused by long-term equipment outages and meet the high-efficiency production needs of all walks of life;

[0012] 3. The isolation device can realize the repair of damaged equipment of any shape and size;

[0013] 4. The isolation cabin allows two people to perform welding and repair work at the same time, which can significantly improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model device;

[0015] Figure 2 This is a perspective view of the flexible gas protection device of the utility model;

[0016] Figure 3 It is a schematic diagram of the flexible gas protection device body of the flexible gas protection device of the utility model. DETAILED DESCRIPTION

[0017] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention more clearly understood, the spirit of the contents disclosed by the present invention will be described in detail below. After understanding the embodiments of the contents of the present invention, any technician in the relevant technical field can change and modify them according to the techniques taught by the contents of the present invention without departing from the spirit and scope of the contents of the present invention.

[0018] The exemplary embodiments of the present invention and the description thereof are used to explain the present invention but are not intended to limit the present invention.

[0019] Specific implementation method 1: Combination Figures 1 to 3 This embodiment is described as a portable flexible gas protection device for welding repair that can be isolated from an inflammable and explosive environment, characterized in that it includes a flexible gas protection device body 1, a mobile vehicle 2, a retractable support device 3, a welding power source 4 and an argon gas cylinder 5;

[0020] The retractable support device 3, argon gas cylinder 5 and water tank 6 are all arranged on the mobile vehicle 2; the flexible gas protection device body 1 is composed of a retractable frame 11 and an insulating layer 12; the insulating layer 12 is filled on the retractable frame 11; the flexible gas protection device body 1 is provided with a welding gun 7, operating gloves 8, a tool box 9 and a lighting device 10; the welding power supply 4 is electrically connected to the welding gun 7; the air outlet of the argon gas cylinder 5 is connected to the air inlet of the retractable support device 3; the retractable support device 3 is composed of a retractable tube; the bottom of the retractable support device 3 is fixedly connected to the upper surface of the mobile vehicle 2, and the top is connected to one end of the bending tube 14, and the other end of the bending tube 14 is fixedly connected to the top of the retractable frame 11 of the flexible gas protection device body 1; the flexible gas protection device body 1 is provided with an observation window 13.

[0021] The technical principle of this implementation is as follows:

[0022] When the equipment works in some special environments, such as coal mines filled with methane and other flammable and explosive gases, and natural gas workshops also have a large amount of flammable and explosive gases; in addition, equipment that works in flammable environments for a long time, such as detection equipment in forests, gas and water transportation equipment, etc. When such equipment is damaged, if welding repair work is performed directly on site, the sparks generated during the welding process can easily ignite the surrounding gas or materials, causing fires and explosions.

[0023] The portable flexible gas protection device for welding repair of this embodiment can surround the damaged part of the equipment, and the interior of the portable flexible gas protection device for welding repair is filled with argon gas through the argon gas cylinder 5. During the welding repair process, the repair environment can be isolated from the surrounding flammable and explosive environment, completely avoiding safety hazards.

[0024] During the welding repair process, two workers operate the welding gun 7 from both sides through the operating gloves 8 to perform welding. The welding process can be observed by the workers through the observation window 13. The material of the observation window 13 is glass that can prevent arc radiation (i.e., welding goggles), which can protect the workers.

[0025] Above the portable flexible gas shielding device for welding repair, a lighting device 10 is arranged to illuminate the cabin when there is no spark before welding, so as to facilitate the operator to carry out preparation work.

[0026] A plurality of conversion valves are designed on one side wall of the portable flexible gas protection device for welding repair, and their main function is to realize the conversion and connection between the welding gun 7 and the external welding power source 4, while avoiding unnecessary leakage of the gas inside the isolation cabin; in addition, the welding power source 4 is cooled by the water tank 6 and the flexible gas protection device body 1, and both can be effectively converted through the various valves on the portable flexible gas protection device for welding repair.

[0027] Specific implementation method 2: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that two operating gloves 8 are provided on both sides of the flexible gas protection device body 1, and an observation window 13 is provided on the flexible gas protection device body 1 above the operating gloves 8. The rest is the same as the first embodiment.

[0028] Specific implementation method three: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that two operating glove installation grooves are provided on both sides of the retractable support device 3, the hand of the operating glove 8 is located in the flexible air protection device body 1, and the entrance of the operating glove 8 is sewn to the operating glove installation groove. The rest is the same as the first embodiment.

[0029] Specific implementation method four: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that the thermal insulation layer 12 is a high temperature resistant thermal insulation cotton layer.

[0030] The rest is the same as the first specific implementation mode.

[0031] Specific implementation method five: Combination Figures 1 to 3 The present embodiment is described. The present embodiment is different from the first embodiment in that a through hole that can be opened and closed is provided at the bottom of the retractable support device 3 .

[0032] The rest is the same as the first specific implementation mode.

[0033] Specific implementation method six: Combination Figures 1 to 3To illustrate this embodiment, the difference between this embodiment and the specific embodiment 1 is that the welding power supply 4 is a water-cooled power supply, and the cooling water is connected to the cooling water inlet of the water-cooled power supply through the cooling water outlet of the water tank 6 arranged on the mobile vehicle 2, and the water outlet of the water-cooled power supply is connected to the water inlet of the water tank 6.

[0034] The rest is the same as the first specific implementation mode.

[0035] Specific implementation method seven: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that the lighting device 10 is arranged on the top of the retractable support device 3.

[0036] The rest is the same as the first specific implementation mode.

[0037] Specific implementation method eight: Combination Figures 1 to 3 The present embodiment is described. The present embodiment is different from the first embodiment in that a conversion valve 15 is provided between the welding power source 4 and the welding gun 7 .

[0038] The rest is the same as the first specific implementation mode.

[0039] Example 1

[0040] A portable flexible gas protection device for welding repair that can be isolated from flammable and explosive environments is manufactured and applied to the actual welding process of the drum and the gear seat of the tunnel boring machine gun head. The diameter of the gun head is 1m, the height is 1m, the material of the gun head is ZG16Mn, the method used in the welding process is TIG welding, the welding current is 70A, the welding wire is WE600 alloy steel welding wire, and the wire feeding speed is 1m / min. During the welding process, the protective device is filled with argon gas, and the internal environment of the isolation cabin is successfully isolated from the external environment.

Claims

1. A portable flexible gas protection device for welding repair that can be isolated from flammable and explosive environments, characterized in that It comprises a flexible gas protection device body (1), a mobile vehicle (2), a telescopic support device (3), a welding power source (4) and an argon gas cylinder (5); The retractable support device (3), argon gas bottle (5) and water tank (6) are all arranged on the mobile vehicle (2); the flexible gas protection device body (1) is composed of a retractable frame (11) and a heat insulation layer (12); the heat insulation layer (12) is filled on the retractable frame (11); the flexible gas protection device body (1) is provided with a welding gun (7), operating gloves (8), a tool box (9) and lighting equipment (10); the welding power source (4) and the welding gun ( 7) electrical connection; the gas outlet of the argon gas bottle (5) is connected to the gas inlet of the flexible gas protection device body (1); the retractable support device (3) is composed of a retractable tube; the bottom of the retractable support device (3) is fixedly connected to the upper surface of the mobile vehicle (2), the top is connected to one end of the bending tube (14), and the other end of the bending tube (14) is fixedly connected to the top of the retractable frame (11) of the flexible gas protection device body (1); the flexible gas protection device body (1) is provided with an observation window (13).

2. A portable flexible gas protection device for welding repair that can be isolated from flammable and explosive environments according to claim 1, characterized in that Two operating glove mounting grooves are provided on both sides of the flexible gas protection device body (1); the hand of the operating glove (8) is located inside the flexible gas protection device body (1); and the entrance of the operating glove (8) is connected to the operating glove mounting groove.

3. A portable flexible gas protection device for welding repair that can be isolated from flammable and explosive environments according to claim 1 or 2, characterized in that Two operating gloves (8) are arranged on both sides of the flexible gas protection device body (1), and an observation window (13) is provided on the flexible gas protection device body (1) above the operating gloves (8).

4. A portable flexible gas protection device for welding repair that can be isolated from flammable and explosive environments according to claim 1, characterized in that The heat insulation layer (12) is a high temperature resistant heat insulation cotton layer.

5. A portable flexible gas protection device for welding repair that can be isolated from flammable and explosive environments according to claim 1, characterized in that The bottom of the retractable support device (3) is provided with an openable and closable through hole.

6. A portable flexible gas protection device for welding repair that can be isolated from flammable and explosive environments according to claim 1, characterized in that The welding power source (4) is a water-cooled power source, and cooling water is connected to the cooling water inlet of the water-cooled power source through the cooling water outlet of the water tank (6) arranged on the mobile vehicle (2), and the water outlet of the water-cooled power source is connected to the water inlet of the water tank (6).

7. A portable flexible gas protection device for welding repair that can be isolated from flammable and explosive environments according to claim 1, characterized in that The lighting device (10) is arranged on the top of the retractable supporting device (3).

8. A portable flexible gas protection device for welding repair that can be isolated from flammable and explosive environments according to claim 1, characterized in that A conversion valve (15) is provided between the welding power source (4) and the welding gun (7).

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