CN212298561U - Device for rapidly switching welding shielding gas - Google Patents
Device for rapidly switching welding shielding gas Download PDFInfo
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- CN212298561U CN212298561U CN202020521512.3U CN202020521512U CN212298561U CN 212298561 U CN212298561 U CN 212298561U CN 202020521512 U CN202020521512 U CN 202020521512U CN 212298561 U CN212298561 U CN 212298561U
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Abstract
The utility model discloses a device of fast switch-over welding protection gas, including L type three-way valve, L type three-way valve one side air inlet is provided with argon gas pipeline, L type three-way valve opposite side air inlet is provided with argon-helium gas mixture pipeline, argon gas pipeline keeps away from L type three-way valve air inlet one side has set gradually check valve, argon gas admission line is the steel pipeline, argon-helium gas mixture pipeline keeps away from L type three-way valve air inlet one side has set gradually check valve, argon-helium gas mixture admission line is the steel pipeline. The utility model has the advantages that the fast switching of two welding protective gases is realized by utilizing the characteristics of double inlet and selective single outlet of the L-shaped three-way valve; the problem of the pressure reducer is dismantled to effectual having solved and need to change welding protection gas, and the application of this device has improved welding efficiency simultaneously, has prolonged the life of pressure reducer.
Description
Technical Field
The utility model relates to a gas circuit auto-change over device field, a device of fast switch-over welding protection gas.
Background
The plate-fin heat exchanger is generally composed of partition plates, fins, seals and guide vanes. The heat exchanger has the advantages that the heat exchange efficiency of the heat exchanger is improved to a new level by the appearance of the plate-fin heat exchanger, and meanwhile, the plate-fin heat exchanger has the advantages of small volume, light weight, capability of treating more than two media and the like; at present, the plate-fin heat exchanger is widely applied to the industries of petroleum, chemical engineering, natural gas processing and the like.
In the process of manufacturing the aluminum alloy plate-fin heat exchanger, a welding process is usually adopted, two different welding shielding gases, namely argon and argon-helium mixed gas, are required in the process, and the following modes are frequently adopted when different shielding gases are switched: will connect on argon-helium gas mixture pipeline is pulled down and reconnected in the pressure reducer of argon gas pipeline, and different protective gas is switched to this mode, does not change welding protective gas and just need pressure reducer of dismouting again, and the pressure reducer is about 10 minutes consuming time for the dismouting, has wasted a large amount of time on the dismouting pressure reducer, and the life of pressure reducer still can be shortened to this mode simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem, a device for fast switching welding shielding gas is designed.
Realize above-mentioned purpose the technical scheme of the utility model be, a device of fast switch-over welding protection gas, including L type three-way valve, L type three-way valve one side air inlet is provided with argon gas pipeline, L type three-way valve opposite side air inlet is provided with argon-helium gas mixture pipeline.
As the further description of the fast switching welding shielding gas device, the argon conveying pipeline is far away from one side of the air inlet of the L-shaped three-way valve is sequentially provided with a check valve and an argon inlet pipeline, and the argon inlet pipeline is a steel pipeline.
As a further description of the fast switching welding shielding gas device, a check valve and an argon-helium mixed gas inlet pipeline are sequentially arranged on one side, away from the air inlet of the L-shaped three-way valve, of the argon-helium mixed gas conveying pipeline, and the argon-helium mixed gas inlet pipeline is a steel pipeline.
As further described for the fast switching weld shield gas apparatus, the check valve is a cast iron check valve that prevents the L-shaped three-way valve from gas blow-by during selection.
As a further description of the fast switching welding shielding gas device, the gas outlet of the L-shaped three-way valve is provided with an auxiliary pipeline, the auxiliary pipeline is a steel pipeline, one side of the auxiliary pipeline, which is far away from the L-shaped three-way valve, is provided with a ball valve, and the ball valve is used for controlling the opening and closing of the whole gas circuit.
As a further description of the fast switching welding shielding gas device, a connecting pipeline is arranged on one side, away from the auxiliary pipeline, of the ball valve and is a steel pipeline, the connecting pipeline is connected with a welding machine gas pressure reducer, and the welding machine gas pressure reducer is used for being connected with a welding machine shielding gas circuit to reduce the pressure of input gas.
As a further description of the fast switching welding shielding gas device, the argon gas conveying pipeline and the argon-helium mixed gas conveying pipeline are both steel pipelines.
The utility model has the advantages that the utility model adopts the L-shaped three-way valve to control the selection of the welding shielding gas (argon and argon-helium mixed gas), the check valve is arranged between the argon gas inlet pipeline and the argon gas conveying pipeline, and the check valve is arranged between the argon-helium mixed gas inlet pipeline and the argon-helium mixed gas conveying pipeline, so that the L-shaped three-way valve can be prevented from gas cross flow during the selection through the check valve; the effectual in-process of having solved preparation aluminum alloy plate fin heat exchanger needs to be changed the welding shielding gas and dismantles the problem of pressure reducer, and simultaneously, the application of this device has improved welded efficiency, has prolonged the life of pressure reducer.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure, 1, L-shaped three-way valves; 2. an air inlet; 3. an argon gas delivery pipe; 4. a check valve; 5. an argon inlet pipe; 6. an argon-helium mixed gas delivery pipeline; 7. an argon-helium mixture gas inlet pipeline; 8. an air outlet; 9. an auxiliary pipe; 10. a ball valve; 11. connecting a pipeline; 12. welding machine gas pressure reducer.
Detailed Description
First explain the utility model discloses a design original intention, in aluminum alloy plate fin heat exchanger welding process, often need use two kinds of different welding protective gas (argon gas and argon-helium gas mixture), at the in-process of switching different gases, will connect usually to pull down and reconnect on argon-helium gas mixture pipeline in the pressure reducer of argon gas pipeline, the pressure reducer of whenever changing welding protective gas of this mode just needs dismouting once again, about 10 minutes consuming time of dismouting to can shorten the life of pressure reducer, for this, the utility model provides a device of fast switch over welding protective gas.
The utility model discloses a following is to be combined the figure and is specifically described the utility model discloses, as shown in fig. 1, a device of fast switch-over welding protection gas, including argon gas transport route and argon-helium mixture transport route, the utility model discloses a L type three-way valve 1, this L type three-way valve 1's "two advance and the single play's of selectivity characteristic can realize the fast switch-over of two kinds of welding protection gases one side air inlet 2 of L type three-way valve 1 is argon gas transport route L type three-way valve 1 opposite side air inlet 2 is argon-helium mixture transport route.
Argon gas pipeline 5, check valve 4, argon gas pipeline 3 are constituteed respectively to the argon gas pipeline, wherein argon gas pipeline 5 the check valve 4 argon gas pipeline 3 fixed connection in proper order, argon gas pipeline 3 connects L type three-way valve 1's air inlet 2 accomplishes required argon gas through this argon gas pipeline and admits air, carries in the welding process, in order to ensure the life of this device, argon gas pipeline 5 argon gas pipeline 3 is the steel pipeline.
The argon-helium mixed gas conveying line is composed of an argon-helium mixed gas inlet pipeline 7, a check valve 4 and an argon-helium mixed gas conveying pipeline 6, wherein the argon-helium mixed gas inlet pipeline 7, the check valve 4 and the argon-helium mixed gas conveying pipeline 6 are fixedly connected in sequence, the argon-helium mixed gas conveying pipeline 6 is connected with a gas inlet 2 of the L-shaped three-way valve 1, the argon-helium mixed gas required in the welding process is fed and conveyed through the argon-helium mixed gas conveying line, and in order to ensure the service life of the pipeline, the argon-helium mixed gas inlet pipeline 7 and the argon-helium mixed gas conveying pipeline 6 are steel pipelines.
In order to facilitate the gaseous conveying, the gas outlet 8 of L type three-way valve 1 is provided with auxiliary pipeline 9, in order to facilitate the switching of the whole gas circuit of control, keep away from gas outlet 8 one side on auxiliary pipeline 9 and set gradually ball valve 10, connecting tube 11 connects welding machine gas pressure reducer 12, wherein auxiliary pipeline 9 connecting tube 11 all adopts the steel pipeline, ensures the life of whole device, welding machine gas pressure reducer 12 is used for connecting welding machine protection gas circuit to reduce the pressure of input gas.
The specific structure of the present invention is described above in detail, and the working principle will be described below: when the device is used, the argon gas inlet pipeline 5 and the argon-helium mixed gas inlet pipeline 7 are respectively connected into a gas pipe network, the unidirectional selection characteristic of the L-shaped three-way valve 1 is utilized, when the wrench points to the argon gas side, the welding machine gas pressure reducer obtains argon gas, when the wrench points to the argon-helium mixed gas side, the welding machine gas pressure reducer obtains argon-helium mixed gas, the check valve 4 of the utility model is used for preventing gas reversal when the L-shaped three-way valve 1 is selected, the opening and closing of the gas circuit of the whole device are controlled through the ball valve 10, the ball valve 10 is opened, the gas passes through the welding machine gas pressure reducer 12, the gas conveying in the process of manufacturing the aluminum alloy plate fin type heat exchanger is completed, the problem that the pressure reducer is detached due to the need of changing welding protective gas in the process of manufacturing the aluminum alloy plate fin type heat exchanger is effectively solved, and, the service life of the pressure reducer is prolonged.
Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.
Claims (7)
1. The utility model provides a device of fast switch-over welding protection gas, includes L type three-way valve (1), its characterized in that, L type three-way valve (1) one side air inlet (2) are provided with argon gas pipeline (3), L type three-way valve (1) opposite side air inlet (2) are provided with argon-helium gas mixture pipeline (6).
2. The device for rapidly switching the welding shielding gas according to claim 1, wherein a check valve (4) and an argon gas inlet pipeline (5) are sequentially arranged on one side of the argon gas conveying pipeline (3) away from the gas inlet (2) of the L-shaped three-way valve (1), and the argon gas inlet pipeline (5) is a steel pipeline.
3. The device for rapidly switching the welding shielding gas according to claim 1, wherein a check valve (4) and an argon-helium mixture gas inlet pipeline (7) are sequentially arranged on the argon-helium mixture gas conveying pipeline (6) far away from the gas inlet (2) side of the L-shaped three-way valve (1), and the argon-helium mixture gas inlet pipeline (7) is a steel pipeline.
4. The device for rapidly switching the welding shielding gas according to claim 2, characterized in that the check valve (4) is a cast iron check valve, and the check valve (4) can prevent the L-shaped three-way valve (1) from gas reversal when selecting.
5. The device for rapidly switching the welding shielding gas according to claim 1, wherein an auxiliary pipeline (9) is arranged at the gas outlet (8) of the L-shaped three-way valve (1), the auxiliary pipeline (9) is a steel pipeline, a ball valve (10) is arranged at one side of the auxiliary pipeline (9) far away from the L-shaped three-way valve (1), and the ball valve (10) is used for controlling the opening and closing of the whole gas path.
6. The device for rapidly switching the welding shielding gas according to claim 5, wherein a connecting pipeline (11) is arranged on one side of the ball valve (10) far away from the auxiliary pipeline (9), the connecting pipeline (11) is a steel pipeline, the connecting pipeline (11) is connected with a welding machine gas pressure reducer (12), and the welding machine gas pressure reducer (12) is used for being connected with a welding machine shielding gas circuit to reduce the pressure of input gas.
7. The device for rapidly switching the welding shielding gas according to claim 1, wherein the argon gas conveying pipeline (3) and the argon-helium mixture conveying pipeline (6) are steel pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020521512.3U CN212298561U (en) | 2020-04-10 | 2020-04-10 | Device for rapidly switching welding shielding gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020521512.3U CN212298561U (en) | 2020-04-10 | 2020-04-10 | Device for rapidly switching welding shielding gas |
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| Publication Number | Publication Date |
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| CN212298561U true CN212298561U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020521512.3U Active CN212298561U (en) | 2020-04-10 | 2020-04-10 | Device for rapidly switching welding shielding gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114248047A (en) * | 2021-12-03 | 2022-03-29 | 渤海造船厂集团有限公司 | Flexible continuous clean welding back gas protection device |
| CN116079195A (en) * | 2023-04-07 | 2023-05-09 | 广东隆崎机器人有限公司 | End effector and arc welding robot |
-
2020
- 2020-04-10 CN CN202020521512.3U patent/CN212298561U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114248047A (en) * | 2021-12-03 | 2022-03-29 | 渤海造船厂集团有限公司 | Flexible continuous clean welding back gas protection device |
| CN116079195A (en) * | 2023-04-07 | 2023-05-09 | 广东隆崎机器人有限公司 | End effector and arc welding robot |
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