Welding gas energy-saving device

Abstract

The utility model relates to a welding gas energy-saving device which comprises a gas mixing tank and a control panel, a gas mixing cavity is arranged in the gas mixing tank, a plurality of gas inlet pipes are arranged on the side face of the gas mixing tank, a gas outlet pipe is arranged at the bottom of the gas mixing tank, the gas inlet pipes and the gas outlet pipe are communicated with the gas mixing cavity, and electromagnetic valves are arranged on the gas inlet pipes and the gas outlet pipe. The inner wall of the gas inlet pipe is tangent to the inner wall of the gas mixing tank, a current sensor is arranged on the control panel, and the electromagnetic valve is electrically connected with the current sensor. The mixed gas is stable in proportion, uniform in mixing, good in protection effect and small in gas consumption, and a large amount of energy can be saved in continuous welding.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding gas energy-saving device. Background Art

[0002] In the steel structure processing industry, gas shielded welding machines are usually needed to provide shielding gas for welding operations. Generally, small and medium-sized manufacturing companies have about 100-500 gas shielded welding machines. On average, one welding machine uses 1 ton of gas per month, about 12 tons per year, and consumes 14,400 yuan of welding gas per year. 100 machines require 1.44 million yuan per year. During the welding process, the amount of gas needs to be determined according to the size of the welding current. However, since the shielding gas is often a mixture of carbon dioxide and argon, uneven gas mixing will also reduce the protection effect. In order to ensure the safety of welding, employees usually use a larger gas flow, which results in a large waste of gas. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a welding gas energy-saving device, which can ensure that the proportion of the mixed gas is stable and the mixing is uniform, and reduce the gas consumption as much as possible.

[0004] The technical solution of the utility model is: a welding gas energy-saving device, comprising a gas mixing tank and a control panel, a gas mixing cavity is arranged inside the gas mixing tank, a plurality of gas inlet pipes are arranged on the side of the gas mixing tank, a gas outlet pipe is arranged at the bottom of the gas mixing tank, the gas inlet pipe and the gas outlet pipe are both communicated with the gas mixing cavity, solenoid valves are arranged on the gas inlet pipe and the gas outlet pipe, the inner wall of the gas inlet pipe is tangent to the inner wall of the gas mixing tank, a current sensor is arranged on the control panel, and the solenoid valve is electrically connected to the current sensor.

[0005] Furthermore, a motor is provided at the upper end of the gas mixing tank, a rotating structure is provided inside the gas mixing tank, and an output end of the motor passes through the upper end of the gas mixing tank into the gas mixing cavity and is connected to the rotating structure.

[0006] Furthermore, the rotating structure includes a rotating shaft and fan blades, the rotating shaft is connected to the output end of the motor, and the fan blades are arranged on the side of the rotating shaft.

[0007] Furthermore, the fan blades are multiple and are arranged in a circular array around the rotating axis.

[0008] Furthermore, a heating plate is provided on the side of the gas mixing tank, and the heating plate is electrically connected to the control board.

[0009] Furthermore, it also includes a casing, and the gas mixing tank and the control panel are both installed in the casing.

[0010] Furthermore, a power converter is provided in the casing, and the power converter is electrically connected to the control board.

[0011] Furthermore, the housing is provided with a notch, and the air inlet pipe and the air outlet pipe can pass through the notch.

[0012] Furthermore, the housing is provided with a button, and the button is electrically connected to the control panel.

[0013] Compared with the prior art, the utility model has the advantages of: the ratio of the mixed gas is stable, the mixing is uniform, the protection effect is good, the gas consumption is small, and a lot of energy can be saved in continuous welding. Carbon dioxide gas and argon gas enter the gas mixing chamber from different air inlet pipes respectively, form a circulation along the circumferential direction of the gas mixing chamber and are fully mixed. Under the rotation of the fan blades, the mixed gas forms a spiral downward flow and is continuously transported to the welding point; the solenoid valve will automatically adjust the gas flow according to the size of the current during welding, and continuously adjust the gas pressure in the tank to keep it stable, and the heating plate on the side of the gas mixing tank transfers heat to the gas in the tank, so that the gas molecules maintain a certain degree of activity, further improving the gas mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the structure of the gas mixing tank of the utility model;

[0016] Figure 2 It is a cross-sectional view of the gas mixing tank of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the casing of the utility model;

[0018] Figure 4 This is a working principle diagram of the utility model.

[0019] Among them: 1. casing; 101. notch; 102. button; 2. gas mixing tank; 201. gas mixing chamber; 3. air inlet pipe; 4. air outlet pipe; 5. solenoid valve; 6. heating plate; 7. motor; 8. rotating shaft; 9. fan blades. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] like Figure 1-4As shown, a welding gas energy-saving device includes a gas mixing tank 2 and a control panel, wherein a gas mixing chamber 201 is provided inside the gas mixing tank 2, a plurality of gas inlet pipes 3 are provided on the side of the gas mixing tank 2, and a gas outlet pipe 4 is provided at the bottom of the gas mixing tank 2, wherein the gas inlet pipe 3 and the gas outlet pipe 4 are both communicated with the gas mixing chamber 201, and carbon dioxide gas and argon gas enter from different gas inlet pipes 3 respectively, are mixed in the gas mixing tank 2, and are then transported to the welding position through the gas outlet tank, and solenoid valves 5 are provided on the gas inlet pipe 3 and the gas outlet pipe 4, and the inner wall of the gas inlet pipe 3 is connected to the mixing chamber 201. The inner wall of the gas tank 2 is tangent, and the carbon dioxide gas or argon gas enters the mixing chamber 201 along the inner wall of the mixing tank 2, forming a circular flow in the mixing chamber 201, which accelerates the gas mixing efficiency and makes the gas mixing more uniform, thereby providing a guarantee for high-speed welding. A current sensor is arranged on the control board, and the solenoid valve 5 is electrically connected to the current sensor. According to the size of the current during welding, the control board can automatically adjust the solenoid valve 5 to control the flow of the inlet pipe 3 and the outlet pipe 4, thereby adjusting the air pressure in the mixing tank 2.

[0022] In the above embodiment, a motor 7 is provided at the upper end of the gas mixing tank 2, and a rotating structure is provided in the gas mixing tank 2. The output end of the motor 7 passes through the upper end of the gas mixing tank 2 and enters the gas mixing chamber 201 and is connected to the rotating structure. The rotating structure includes a rotating shaft 8 and a fan blade 9. The rotating shaft 8 is connected to the output end of the motor 7. The fan blade 9 is arranged on the side of the rotating shaft 8. The motor 7 drives the rotating shaft 8 to rotate, thereby driving the fan blade 9 to rotate, accelerating the mixing of the gas, and the fan blade 9 transports the mixed gas downward, and the mixed gas forms a spiral downward flow direction. During high-speed welding, the two gases can be quickly mixed and transported from the gas outlet pipe 4 to the welding point. The gas flow direction in the gas mixing chamber 201 is stable, and the corresponding gas pressure is also relatively stable, avoiding the frequent intervention of the solenoid valve 5 to control the flow rate, resulting in equipment damage, heating of the control board, etc.; the fan blade 9 has multiple pieces and is arranged in a circular array around the rotating shaft 8, which further enhances the gas mixing speed and improves the mixing efficiency; a heating plate 6 is provided on the side of the gas mixing tank 2, and the heating plate 6 is electrically connected to the control board. By maintaining a certain temperature, the gas molecules in the tank maintain a certain activity, which is conducive to gas mixing.

[0023] In the above embodiment, the mixing tank 2 and the control panel are both installed in the casing 1. The casing 1 is made of aluminum alloy material to protect components, prevent dust intrusion, and prevent external electromagnetic interference; a power converter is provided in the casing 1, and the power converter is electrically connected to the control panel to power the entire device, input 220V AC voltage, and convert it into a stable output 24V DC power supply; a notch 101 is provided on the casing 1, and the pipes of the air inlet pipe 3 and the air outlet pipe 4 can pass through the notch 101. A corrugated hose can also be installed at the notch 101 to make the disassembly and assembly of the air inlet pipe 3 and the air outlet pipe 4 more convenient, and at the same time can further increase the air tightness; a button 102 is provided on the casing 1, and the button 102 is electrically connected to the control panel for easy operation.

[0024] Description of the working method of this utility model:

[0025] Before welding begins, the gas mixing tank 2 is filled with carbon dioxide gas and argon gas, and a certain amount of air is discharged to ensure that the concentration of the mixed gas meets the standard; carbon dioxide gas and argon gas enter the gas mixing chamber 201 from different inlet pipes 3 respectively, form a circulation along the circumferential direction of the gas mixing chamber 201 and are fully mixed. Under the rotation of the fan blades 9, the mixed gas forms a spiral downward flow, which is continuously transported to the outlet pipe 4, and finally transported to the welding point through the outlet pipe 4 to provide protection for welding; in this process, the solenoid valve 5 on the inlet pipe 3 and the outlet pipe 4 will automatically adjust the gas flow according to the size of the current during welding, and continuously adjust the gas pressure in the tank to keep it stable, while the heating plate 6 on the side of the gas mixing tank 2 transfers heat to the gas in the tank, so that the gas molecules maintain a certain degree of activity, and further improve the gas mixing efficiency. The use of this device to provide protective gas for welding can ensure that the proportion of the mixed gas is stable and the mixing is uniform, so as to achieve the best protection effect, reduce the gas consumption as much as possible, and save a lot of energy in continuous welding.

[0026] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A welding gas energy-saving device, comprising a gas mixing tank and a control panel, characterized in that: A mixing chamber is provided inside the mixing tank, a plurality of air inlet pipes are provided on the side of the mixing tank, and an air outlet pipe is provided at the bottom of the mixing tank. Both the air inlet pipe and the air outlet pipe are communicated with the mixing chamber, and solenoid valves are provided on the air inlet pipe and the air outlet pipe. The inner wall of the air inlet pipe is tangent to the inner wall of the mixing tank, and a current sensor is provided on the control panel, and the solenoid valve is electrically connected to the current sensor.

2. The welding gas energy saving device according to claim 1, characterized in that: The upper end of the gas mixing tank is provided with a motor, a rotating structure is provided inside the gas mixing tank, and the output end of the motor passes through the upper end of the gas mixing tank into the gas mixing cavity and is connected to the rotating structure.

3. The welding gas energy saving device according to claim 2, characterized in that: The rotating structure comprises a rotating shaft and fan blades, wherein the rotating shaft is connected to the output end of the motor, and the fan blades are arranged on the side of the rotating shaft.

4. The welding gas energy saving device according to claim 3, characterized in that: The fan blades are provided in a plurality of pieces and are arranged in a circular array around the rotating shaft.

5. The welding gas energy saving device according to claim 1, characterized in that: A heating plate is provided on the side of the gas mixing tank, and the heating plate is electrically connected to the control board.

6. The welding gas energy saving device according to claim 1, characterized in that: It also includes a casing, in which the gas mixing tank and the control panel are both installed.

7. The welding gas energy saving device according to claim 6, characterized in that: A power converter is arranged in the casing, and the power converter is electrically connected to the control board.

8. The welding gas energy saving device according to claim 6, characterized in that: The housing is provided with a notch, and the pipes of the air inlet pipe and the air outlet pipe can pass through the notch.

9. The welding gas energy saving device according to claim 6, characterized in that: The housing is provided with a button, and the button is electrically connected to the control panel.

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