CN205393745U - Simple and easy gas dam of pipeline welding seam back of body protection device - Google Patents
Simple and easy gas dam of pipeline welding seam back of body protection device Download PDFInfo
- Publication number
- CN205393745U CN205393745U CN201620108480.8U CN201620108480U CN205393745U CN 205393745 U CN205393745 U CN 205393745U CN 201620108480 U CN201620108480 U CN 201620108480U CN 205393745 U CN205393745 U CN 205393745U
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- argon
- screwed pipe
- corrugated tubing
- welding seam
- argon gas
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Abstract
The utility model relates to a bimetal composite tube argon arc welding technical field relates to a simple and easy gas dam of pipeline welding seam back of body protection device. Its simple structure, give vent to anger fine and closely woven evenly, the aeration quantity is few, and the time of aerifing is short, and tolerance is extravagant little, installs oxygen determination appearance real -time supervision welding seam back the argon protection effect additional, has improved welding quality and efficiency greatly. The utility model discloses a technical scheme include the hollow screwed pipe, the screwed pipe interpolation is equipped with the argon gas intake pipe, be provided with two on the screwed pipe rather than looks vertically leather packing, the both sides of every leather packing are pasted mutually and are provided with the metallic gasket, the both ends of metallic gasket are passed through set nut and are fixed with the screwed pipe, the both ends of screwed pipe are provided with the handle, still be provided with on the screwed pipe rather than looks vertically argon gas chamber, the argon gas chamber sets up on the screwed pipe between two metallic gaskets, evenly set up porosely on the circumference in argon gas chamber, the argon gas chamber communicates with each other with the argon gas pipe, be provided with oxygen determination appearance probe interface on the leather packing, oxygen determination appearance probe interface passes through the wire and is connected with the oxygen determination appearance.
Description
Technical field
This utility model relates to composite bimetal pipe argon arc welding technical field, relates to a kind of pipe welding seam back of the body and protects simple and easy air dam device.
Background technology
Composite bimetal pipe is increasingly widely used in offshore oil industry due to advantages such as its decay resistance height, cost relative moderate.Composite bimetal pipe welding difficulty is big, and welding quality requires height.The reliable argon arc welding of steady quality is currently mainly adopted to weld.When using argon arc welding welding composite bimetal pipe, pipeline inside weld back needs ar gas environment protection molten bath, it is prevented that weld seam back aoxidizes.The argon shield effect of backing welding directly affects the decay resistance of multiple tube CRA layer, determines the service life of multiple tube.Therefore pipe welding seam backside gas protection welding quality is most important.Traditional pipe welding seam back of the body protects simple and easy air dam device; argon chamber is big; the gas needed is many; inflationtime is long; and there is no oxygen analyser monitoring gas shield effect, the protected effect of weld seam is undesirable, it is difficult to meet current construction requirement; causing that the welding quality of weld seam is unstable, repair rate is high and causes huge cost to waste.
Utility model content
The purpose of this utility model is to provide a kind of pipe welding seam back of the body and protects simple and easy air dam device, its simple in construction, give vent to anger fine and closely woven uniformly, aeration quantity is few; inflationtime is short; tolerance waste is little, installs oxygen analyser additional and monitors weld seam back argon shield effect in real time, substantially increases welding quality and efficiency.
For solving prior art Problems existing, the technical solution adopted in the utility model is: a kind of pipe welding seam back of the body protects simple and easy air dam device, including hollow corrugated tubing, argon inlet pipe (2) it is inserted with in described corrugated tubing, corrugated tubing is provided with two leather packings perpendicular with it, the both sides of each leather packing are affixed and are provided with metallic gasket, the two ends of metallic gasket are fixed with corrugated tubing by positioning nut, the two ends of corrugated tubing are provided with handle, it is characterized in that: described corrugated tubing is additionally provided with the argon chamber perpendicular with it, argon chamber is arranged on the corrugated tubing between two metallic gaskets, the circumference in described argon chamber is uniformly arranged porose, argon chamber communicates with tunger tube, described leather packing is provided with oxygen analyser probe interface, described oxygen analyser probe interface is connected with oxygen analyser by wire.
The external diameter of described leather packing is more than the external diameter of metallic gasket.
Described argon chamber is annular.
Described argon chamber and corrugated tubing are welded as a whole.
Compared with prior art, advantage of the present utility model is as follows:
1, be uniformly distributed multiple venthole air bag replace escape pipe, give vent to anger more fine and closely woven uniformly, protected effect is better；
2, make argon chamber volume be greatly reduced, save argon, inflationtime has been greatly shortened.Through experimental tests, uses this utility model that the oxygen content in weld seam back protection air cavity can be made in 1～2 minute to drop to about 200PPM during welding φ 219mm pipeline；
3, installing oxygen analyser additional can real-time digitization monitoring weld seam back protected effect；
4, around air bag, substantial amounts of gas outlet is closely directed at weld seam back blow-through argon, and protected effect is good and stable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is this utility model leather packing structural representation；
Fig. 3 is use state reference map of the present utility model；
Description of reference numerals: 1 pipeline, 2 argon inlet pipe, 3 handles, 4 leather packings, 5 metallic gaskets, 6 location nut, 7 weld seams, 8 argon chambeies, 9 corrugated tubings, 10 holes, 11 oxygen analyser probe interfaces, 12 oxygen analysers.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail:
nullReferring to Fig. 1 and Fig. 2: a kind of pipe welding seam back of the body protects simple and easy air dam device，Including hollow corrugated tubing 9，It is inserted with argon inlet pipe 2 in described corrugated tubing 9，Corrugated tubing 9 is provided with two leather packings 4 perpendicular with it，The both sides of each leather packing 4 are affixed and are provided with metallic gasket 5，The external diameter of leather packing 4 is more than the external diameter of metallic gasket 5，The two ends of metallic gasket 5 are fixed with corrugated tubing 9 by positioning nut 6，The two ends of corrugated tubing 9 are provided with handle 3，On described corrugated tubing 9, also welding is provided with the annular argon chamber 8 of setting perpendicular with it，Argon chamber 8 and corrugated tubing 9 are welded as a whole，Argon chamber 8 is arranged on the corrugated tubing 9 between two metallic gaskets 4，The circumference in described argon chamber 8 is uniformly arranged porose 10，Argon chamber 8 communicates with tunger tube 2，Described leather packing 4 is provided with oxygen analyser probe interface 11，Described oxygen analyser probe interface 11 is connected with oxygen analyser 12 by wire.
Use procedure of the present utility model (referring to Fig. 3):
In mouth of pipe group to before starting welding afterwards; this utility model is arranged in pipeline 1; make center, argon chamber alignment weld seam 7, connect argon, during weld seam bottoming; argon carries out blow-through by pore 10 closely butt welded seam back substantial amounts of on the circumference of argon chamber 8; being effectively protected weld seam back, in whole welding bottoming process, connecting oxygen analyser 12 can monitor in real time to gas shield effect; after weld seam bottoming completes, just can take out this device.
This utility model is respond well after experimental check, and when effectively solving pipeline welding bottoming, weld seam backside gas protects this difficult point.
Claims (4)
- null1. a pipe welding seam back of the body protects simple and easy air dam device，Including hollow corrugated tubing (9)，It is inserted with argon inlet pipe (2) in described corrugated tubing (9)，Corrugated tubing (9) is provided with two leather packings perpendicular with it (4)，The both sides of each leather packing (4) are affixed and are provided with metallic gasket (5)，The two ends of metallic gasket (5) are fixed with corrugated tubing (9) by positioning nut (6)，The two ends of corrugated tubing (9) are provided with handle (3)，It is characterized in that: described corrugated tubing (9) is additionally provided with the argon chamber (8) perpendicular with it，Argon chamber (8) is arranged on the corrugated tubing (9) between two metallic gaskets (5)，The circumference in described argon chamber (8) is uniformly arranged porose (10)，Argon chamber (8) communicates with tunger tube (2)，Described leather packing (4) is provided with oxygen analyser probe interface (11)，Described oxygen analyser probe interface (11) is connected with oxygen analyser (12) by wire.
- 2. a kind of pipe welding seam back of the body according to claim 1 protects simple and easy air dam device, it is characterised in that: the external diameter of described leather packing (4) is more than the external diameter of metallic gasket (5).
- 3. a kind of pipe welding seam back of the body according to claim 1 and 2 protects simple and easy air dam device, it is characterised in that: described argon chamber (8) is annular.
- 4. a kind of pipe welding seam back of the body according to claim 3 protects simple and easy air dam device, it is characterised in that: described argon chamber (8) and corrugated tubing (9) are welded as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620108480.8U CN205393745U (en) | 2016-02-03 | 2016-02-03 | Simple and easy gas dam of pipeline welding seam back of body protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620108480.8U CN205393745U (en) | 2016-02-03 | 2016-02-03 | Simple and easy gas dam of pipeline welding seam back of body protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205393745U true CN205393745U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620108480.8U Active CN205393745U (en) | 2016-02-03 | 2016-02-03 | Simple and easy gas dam of pipeline welding seam back of body protection device |
Country Status (1)
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| CN (1) | CN205393745U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581138A (en) * | 2018-04-13 | 2018-09-28 | 海洋石油工程股份有限公司 | The vertical upward automatic argon arc weld of composite bimetal pipe connects technique |
| CN108672934A (en) * | 2018-04-25 | 2018-10-19 | 西安飞机工业（集团）有限责任公司 | A kind of gas shield device of titanium alloy conduit laser welding and guard method |
| CN109500475A (en) * | 2018-10-31 | 2019-03-22 | 沪东中华造船(集团)有限公司 | Pipeline argon arc welding welding Aerated tool equipment and pipeline argon gas welding method |
| CN112222576A (en) * | 2020-12-17 | 2021-01-15 | 成都裕鸢航空零部件制造有限公司 | Argon tungsten-arc welding method and welding tool capable of preventing weld joint from being oxidized |
| CN114453812A (en) * | 2022-01-11 | 2022-05-10 | 武汉睿铭钢结构有限公司 | Steel frame welding fixing table device convenient to fix and fixing method thereof |
-
2016
- 2016-02-03 CN CN201620108480.8U patent/CN205393745U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581138A (en) * | 2018-04-13 | 2018-09-28 | 海洋石油工程股份有限公司 | The vertical upward automatic argon arc weld of composite bimetal pipe connects technique |
| CN108672934A (en) * | 2018-04-25 | 2018-10-19 | 西安飞机工业（集团）有限责任公司 | A kind of gas shield device of titanium alloy conduit laser welding and guard method |
| CN109500475A (en) * | 2018-10-31 | 2019-03-22 | 沪东中华造船(集团)有限公司 | Pipeline argon arc welding welding Aerated tool equipment and pipeline argon gas welding method |
| CN112222576A (en) * | 2020-12-17 | 2021-01-15 | 成都裕鸢航空零部件制造有限公司 | Argon tungsten-arc welding method and welding tool capable of preventing weld joint from being oxidized |
| CN112222576B (en) * | 2020-12-17 | 2021-03-30 | 成都裕鸢航空智能制造股份有限公司 | Argon tungsten-arc welding method and welding tool capable of preventing weld joint from being oxidized |
| CN114453812A (en) * | 2022-01-11 | 2022-05-10 | 武汉睿铭钢结构有限公司 | Steel frame welding fixing table device convenient to fix and fixing method thereof |
| CN114453812B (en) * | 2022-01-11 | 2024-05-10 | 武汉睿铭钢结构有限公司 | Steel frame welding fixing table device convenient to fix and fixing method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |