CN211966267U - Argon gasification device for argon arc welding liquid - Google Patents
Argon gasification device for argon arc welding liquid Download PDFInfo
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- CN211966267U CN211966267U CN201922069908.9U CN201922069908U CN211966267U CN 211966267 U CN211966267 U CN 211966267U CN 201922069908 U CN201922069908 U CN 201922069908U CN 211966267 U CN211966267 U CN 211966267U
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Abstract
The utility model discloses an argon arc welds liquid argon gasification equipment, the device include liquid argon jar, main valve, air exchanger, air compression bellows, relief valve, welding machine valve, argon arc welding machine, maintenance valve and argon gas transmission pipeline. The argon transmission pipeline is sequentially connected with a liquid argon tank, a main valve, an air exchanger, a maintenance valve and a pressure release valve, then enters a workshop and is divided into a plurality of branch pipes, and each branch pipe is connected with a welding machine valve and an argon arc welding machine. An air pressure air box is arranged above the air exchanger, and air pressure air is blown downwards through a plurality of uniformly distributed small holes, so that the effects of defrosting the air exchanger and enhancing heat exchange are achieved. Or a flue gas pipe is used for replacing the air pressure air box, and the air exchanger is arranged in the flue gas pipe. The device avoids high-pressure danger of a welding workshop; the invalid labor of replacing the argon bottle is avoided, the argon temperature is basically consistent with the room temperature, and the argon arc welding quality is stable.
Description
Technical Field
The utility model discloses be applied to the welding field, relate to a liquid argon gasification equipment who provides argon gas for argon arc welds.
Background
The low-temperature storage tank is of a double-cylinder structure, the inner container is made of stainless steel, and the stainless steel is welded by adopting an argon arc welding process, so that the argon is used in a large amount in the manufacturing industry of the low-temperature storage tank. In a conventional argon arc welding argon gas supply mode, a high-pressure and high-purity argon gas bottle is usually used, the pressure of argon gas stored in the high-pressure bottle is 14MPa, and the price of the high-purity argon gas is relatively high. The use of a high-pressure bottle for storing high-purity argon is dangerous in welding areas, is not economical, and has the ineffective labor of frequently replacing the argon bottle. For large-scale argon gas consumption households, a liquid argon tank is mostly adopted to store argon gas, and the argon arc welding machine which leads the argon gas into a workshop through a pipeline is used. Therefore, the danger of a welding working area can be effectively reduced, the production cost is greatly saved, but the problems of low argon temperature and unstable welding quality exist.
Disclosure of Invention
The utility model provides a technical problem be: provides a simple liquid argon gasification device which can heat liquid argon to room temperature and stabilize welding quality.
The utility model adopts the technical proposal that: the argon arc welding liquid argon gasification device comprises a liquid argon tank, a main valve, an air exchanger, an air pressure bellows, a pressure release valve, a welding machine valve, an argon arc welding machine, a maintenance valve and an argon transmission pipeline. The argon transmission pipeline is sequentially connected with a liquid argon tank, a main valve, an air exchanger, a maintenance valve and a pressure release valve, then enters a workshop, is divided into branch pipes, and is connected with a welding machine valve and an argon arc welding machine. An air pressure air box is arranged above the air exchanger, covers the whole air exchanger and blows air pressure downwards through a plurality of uniformly distributed small holes to achieve the effects of defrosting the air exchanger and strengthening heat exchange.
The other scheme is that the air pressure air box is replaced by a flue gas pipe, an air exchanger is positioned in the flue gas pipe, and the gasified liquid argon is heated by preheating the flue gas.
The utility model discloses the technological progress who gains is: the device avoids high-pressure danger of a welding workshop; the invalid labor of replacing the argon bottle is avoided, the argon temperature is basically consistent with the room temperature, and the argon arc welding quality is stable.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of embodiment 2 of the present invention;
wherein: 1-liquid argon tank, 2-main valve, 3-air exchanger, 4-air pressure bellows, 5-pressure release valve, 6-welding machine valve, 7-argon arc welding machine, 8-maintenance valve and 9-flue gas pipe.
Detailed Description
Example 1.
The argon arc welding liquid argon gasification device is shown in the attached figure 1 and comprises a liquid argon tank 1, a main valve 2, an air exchanger 3, an air pressure air box 4, a pressure release valve 5, a welding machine valve 6, an argon arc welding machine 7 and a maintenance valve 8. The argon transmission pipeline is sequentially connected with a liquid argon tank 1, a main valve 2, an air exchanger 3, a maintenance valve 8 and a pressure release valve 5, and is connected with a welding machine valve 6 and an argon arc welding machine 7 after entering a workshop. The main valve 2 and the maintenance valve 8 are in a normally open state during working, and the main valve 2 is closed, so that the liquid argon tank 1 is convenient to replace. The maintenance valve 8 the main valve 2 facilitates replacement of the pressure relief valve 5, maintenance of the piping, etc., and the air exchanger 3 can be replaced when the main valve 2 and the maintenance valve 8 are closed at the same time. The opening of the welding machine valve 6 can realize that the argon arc welding machine 7 is connected with argon, and the welding machine valve 6 is closed when the argon arc welding machine 7 does not perform welding for a long time.
The temperature of liquid argon is not greatly different from the temperature of liquid nitrogen, when the liquid argon is gasified, the surface of the air exchanger 3 is easy to frost, in order to prevent the air exchanger 3 from frosting, an air pressure air box 4 is arranged above the air exchanger 3, the air pressure air box 4 covers the whole air exchanger 3, and air pressure air is blown downwards through a plurality of uniformly distributed small holes. The air pressure wind can accelerate the heat exchange with the liquid argon while preventing the air exchanger 3 from frosting, and is beneficial to the gasification of the liquid argon. The small hole of the air pressure air box 4 is downward, so that the blockage of dust can be prevented, and the smoothness can be kept favorably.
The pressure release valve 5 is installed at an inlet of the argon pipeline entering the workshop, and when the pressure of the argon rises to exceed the safe pressure, the pressure release can be realized, so that the safe pressure and the safe use of the argon are ensured. The argon pipeline access workshop is divided into a plurality of branch pipes which are respectively connected with different welding machine valves 6 and corresponding argon arc welding machines 7.
Example 2.
The difference between the embodiment and the embodiment 1 is that the whole air exchanger 3 is located in the flue gas pipe 9, the air pressure air box 4 is removed, the flue gas pipe 9 is used for defrosting, the flue gas pipe 9 is a waste gas discharge channel of the gas furnace, in general, the waste gas of the gas furnace is discharged at about 200 ℃ plus 300 ℃, the waste gas heat can be recycled, the liquid argon is heated into the argon, the conversion speed is high, and the requirement that all argon arc welding machines in a workshop are used simultaneously can be met.
However, this embodiment also has certain disadvantages, for example, dust in the flue gas easily covers the air exchanger 3 and is not easy to clean, and when the gas furnace is shut down, the argon gas conversion efficiency is low; when the flue gas temperature is higher, argon gas transition speed is fast, and pressure rise is fast, easily causes relief valve 5 to open the pressure release, extravagant argon gas etc..
Relatively speaking, example 1 argon gas transitions smoothly, the pressure remains relatively constant, and the accident rate is low.
The argon arc welding liquid argon gasification device places a storage tank for storing liquid argon outside a workshop, so that the explosion danger of the welding workshop is avoided; frequent replacement of the argon bottle is avoided, ineffective labor is reduced, and production efficiency is improved; the temperature of argon gas introduced into the workshop is basically consistent with the room temperature, and the argon arc welding quality is stable.
Claims (2)
1. The utility model provides an argon arc welding liquid argon gasification equipment which characterized in that: the argon gas-liquid welding system comprises a liquid argon tank (1), a main valve (2), an air exchanger (3), an air pressure bellows (4), a pressure release valve (5), a welding machine valve (6), an argon arc welding machine (7), a maintenance valve (8) and an argon gas transmission pipeline; the argon transmission pipeline is sequentially connected with a liquid argon tank (1), a main valve (2), an air exchanger (3), a maintenance valve (8) and a pressure release valve (5), then is divided into branch pipes, and is connected with a welding machine valve (6) and an argon arc welding machine (7); and an air pressure air box (4) is arranged above the air exchanger (3), the air pressure air box (4) covers the air exchanger (3), and air pressure air is blown downwards through uniformly distributed small holes.
2. The argon gasifying device for argon arc welding liquid according to claim 1, wherein: the air pressure air box (4) is replaced by a flue gas pipe (9), and the air exchanger (3) is positioned in the flue gas pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922069908.9U CN211966267U (en) | 2019-11-27 | 2019-11-27 | Argon gasification device for argon arc welding liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922069908.9U CN211966267U (en) | 2019-11-27 | 2019-11-27 | Argon gasification device for argon arc welding liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211966267U true CN211966267U (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922069908.9U Active CN211966267U (en) | 2019-11-27 | 2019-11-27 | Argon gasification device for argon arc welding liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211966267U (en) |
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2019
- 2019-11-27 CN CN201922069908.9U patent/CN211966267U/en active Active
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