CN217343962U - A aerify protection device for pipeline circumferential weld - Google Patents
A aerify protection device for pipeline circumferential weld Download PDFInfo
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- CN217343962U CN217343962U CN202122197389.1U CN202122197389U CN217343962U CN 217343962 U CN217343962 U CN 217343962U CN 202122197389 U CN202122197389 U CN 202122197389U CN 217343962 U CN217343962 U CN 217343962U
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- air inlet
- inlet pipe
- plugging
- pipeline
- pipe
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Abstract
The utility model discloses an aerify protection device for pipeline circumferential weld for supplementary weldment work of waiting to weld piece and pipeline butt joint circumferential weld, include: the working state of the plugging device is expanded by continuously filling gas until the outer wall of the plugging device completely contacts the inner wall of the pipeline; the output end of the first air inlet pipe is communicated with the plugging device; the plugging membrane is arranged close to the input end of the first air inlet pipe, and the first air inlet pipe penetrates through the plugging membrane; the second air inlet pipe is arranged in parallel with the first air inlet pipe, the second air inlet pipe penetrates through the plugging film, and the output end of the second air inlet pipe is arranged between the plugging device and the plugging film. The utility model discloses a reduced the space that needs the argon gas to be full of, reduced the use amount of argon gas, it is long when having reduced the argon gas and aerifing to improve the welding progress and the efficiency that argon arc welded.
Description
Technical Field
The utility model relates to a pipeline welding technical field, in particular to an aerify protection device for pipeline circumferential weld.
Background
In the process of building an offshore oil platform, nonferrous metal pipelines are usually welded by argon arc welding, and in the welding process, glass fiber adhesive tapes are usually used for plugging the end parts of the pipelines and continuously injecting argon into the pipelines, so that the oxidation of the welding parts is avoided. By adopting the method, argon gas is generally needed to be injected into the whole pipeline system, the leakage of the glass fiber adhesive tape is easy to occur in the inflation process, a large amount of argon gas is wasted in the inflation process, and the welding progress and efficiency are influenced by the long inflation time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at reducing the use amount of argon gas and the length of argon gas inflation in the pipeline argon arc welding, improving welding progress and efficiency.
In order to achieve the above object, the utility model provides an aerify protection device for pipeline girth joint for supplementary weldment work of waiting to weld piece and pipeline butt joint girth joint, include: the working state of the plugging device is expanded by continuously filling gas until the outer wall of the plugging device completely contacts the inner wall of the pipeline, and the non-working state of the plugging device is not filled with gas; the output end of the first air inlet pipe is communicated with the plugging device; the plugging membrane is arranged close to the input end of the first air inlet pipe, and the first air inlet pipe penetrates through the plugging membrane; the second air inlet pipe is arranged in parallel with the first air inlet pipe, the second air inlet pipe penetrates through the plugging film, and the output end of the second air inlet pipe is arranged between the plugging device and the plugging film.
As the preferred technical scheme of the utility model, plugging device is one or more combination in gasbag, rubber ball and the PVC ball.
As the utility model discloses a preferred technical scheme, during operating condition, plugging device stretches into in the pipeline, until plugging device is close to first inlet tube end distance the pipeline opening is 20-30cm department.
As the utility model discloses a preferred technical scheme, the air supply is aerifyd in first intake pipe input intercommunication.
As an optimal technical scheme of the utility model, treat the welding piece with pipeline spot welding fixed connection, treat the welding piece with shutoff membrane sealing connection.
As the utility model discloses an optimized technical scheme, second intake pipe input intercommunication fills the argon gas source, second intake pipe output is located the pipeline with treat position between the welding.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The device comprises a plugging device 1, a first air inlet pipe 2, a plugging film 3, a second air inlet pipe 4, a pipeline 5 and a to-be-welded part 6.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As shown in fig. 1, the embodiment of the utility model provides an aerify protection device for pipeline circumferential weld for supplementary weldment work of waiting a 6 and 5 butt joint circumferential welds of pipeline, include: the device comprises a plugging device 1, wherein the working state of the plugging device 1 is expanded by continuously filling gas until the outer wall of the plugging device 1 completely contacts the inner wall of the pipeline 5, and the non-working state of the plugging device 1 is not filled with gas; the output end of the first air inlet pipe 2 is communicated with the plugging device 1; the plugging membrane 3 is arranged close to the input end of the first air inlet pipe 2, and the first air inlet pipe 2 penetrates through the plugging membrane 3; the second intake pipe 4, the second intake pipe 4 with the first intake pipe 2 sets up side by side, the second intake pipe 4 runs through the shutoff membrane 3 sets up, the 4 output ends of second intake pipe are located position between shutoff device 1 and the shutoff membrane 3.
In an embodiment of the present invention, the occlusion device 1 is an air bag.
In an embodiment of the present invention, during the working state, the plugging device 1 extends into the pipeline 5 until the plugging device 1 is close to the distance between the end of the first air inlet pipe 2 and the opening of the pipeline 5 is 30 cm.
In an embodiment of the present invention, the input end of the first air inlet pipe 2 is connected to the inflation air source.
In an embodiment of the present invention, the to-be-welded component 6 is fixedly connected to the pipeline 5 by spot welding, and the to-be-welded component 6 is hermetically connected to the plugging film 3.
In an embodiment of the present invention, the input end of the second air inlet pipe 4 is connected to the argon gas charging source, and the output end of the second air inlet pipe 4 is disposed on the pipeline 5 and the position between the parts to be welded 6.
The working principle and the beneficial effects of the scheme are as follows: during the use, stretch into pipeline 5 with plugging device 1, will wait to weld piece 6 and pipeline 5 and carry out spot welding fixed again, the shutoff membrane 3 is sealed waits to weld piece 6 and keeps away from pipeline 5 end opening, first intake pipe 2 fills gas into plugging device 1, plugging device 1 expands, until plugging device 1 outer wall contacts the pipeline 5 inner wall completely, argon gas gets into in pipeline 5 through second intake pipe 4, pipeline 5 both ends are sealed by plugging device 1 and shutoff membrane 3 respectively, argon gas only need be full of the space between plugging device 1 and shutoff membrane 3, will wait to weld piece 6 and pipeline 5 junction and carry out argon arc welding again, the space that needs argon gas to be full of has greatly reduced, the use amount of argon gas has been reduced, it is long when reducing argon gas inflation, thereby improve argon arc welding's welding progress and efficiency.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (6)
1. An inflation protection device for a pipe circumferential weld for assisting the welding of a piece to be welded (6) to a pipe (5) butt circumferential weld, comprising:
the working state of the plugging device (1) is expanded by continuously filling gas until the outer wall of the plugging device (1) completely contacts the inner wall of the pipeline (5), and the non-working state of the plugging device (1) is not filled with gas; the output end of the first air inlet pipe (2) is communicated with the plugging device (1); the plugging membrane (3), the plugging membrane (3) is arranged close to the input end of the first air inlet pipe (2), and the first air inlet pipe (2) penetrates through the plugging membrane (3); the second air inlet pipe (4), the second air inlet pipe (4) with first air inlet pipe (2) set up side by side, second air inlet pipe (4) run through shutoff membrane (3) set up, second air inlet pipe (4) output is located position between plugging device (1) and shutoff membrane (3).
2. An inflatable protection device for a pipe girth weld according to claim 1, comprising:
the plugging device (1) is one or a combination of a plurality of air bags, rubber balls and PVC balls.
3. An inflatable protection device for a pipe girth weld according to claim 1, comprising:
when the device is in a working state, the plugging device (1) extends into the pipeline (5) until the end, close to the first air inlet pipe (2), of the plugging device (1) is 20-30cm away from the opening of the pipeline (5).
4. An inflatable protection device for a pipe girth weld according to claim 1, comprising:
the input end of the first air inlet pipe (2) is communicated with an inflation air source.
5. An inflatable protection device for a pipe girth weld according to claim 1, comprising:
the to-be-welded part (6) is fixedly connected with the pipeline (5) in a spot welding mode, and the to-be-welded part (6) is connected with the plugging film (3) in a sealing mode.
6. An inflatable protection device for a pipe girth weld according to claim 1, comprising:
the argon gas source is filled to second intake pipe (4) input intercommunication, second intake pipe (4) output is located pipeline (5) with wait to weld position between piece (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197389.1U CN217343962U (en) | 2021-09-10 | 2021-09-10 | A aerify protection device for pipeline circumferential weld |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197389.1U CN217343962U (en) | 2021-09-10 | 2021-09-10 | A aerify protection device for pipeline circumferential weld |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217343962U true CN217343962U (en) | 2022-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122197389.1U Active CN217343962U (en) | 2021-09-10 | 2021-09-10 | A aerify protection device for pipeline circumferential weld |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217343962U (en) |
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2021
- 2021-09-10 CN CN202122197389.1U patent/CN217343962U/en active Active
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