CN100391676C - Technological method of partly submerged type platform complex K type node welding - Google Patents
Technological method of partly submerged type platform complex K type node welding Download PDFInfo
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- CN100391676C CN100391676C CNB2005100459314A CN200510045931A CN100391676C CN 100391676 C CN100391676 C CN 100391676C CN B2005100459314 A CNB2005100459314 A CN B2005100459314A CN 200510045931 A CN200510045931 A CN 200510045931A CN 100391676 C CN100391676 C CN 100391676C
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Abstract
The present invention relates to a method for welding a K type node of a submerged type platform. Three section of pipe materials of the K type node are correspondingly placed, and the circumference of a node of an oblique crossed pipe is communicated with the outer side of a transversal pipe; on the circumference of the whole intersecting line joint, a welding bevel of the oblique crossed pipe adopts that an outer bevel is formed from the obtuse angle end of the oblique crossed pipe to upper and lower middle points, and the outer bevel is gradually reduced from the maximum to zero; an inner side bevel is formed from the acute angle end of the oblique crossed pipe to the upper and lower middle points, and the inner side bevel is gradually reduced from the maximum to zero. Thus, the present invention is suitable for the particularity of different natural angles of each node of the oblique crossed pipe, and ensures the welding reliability from the inner surface and the outer surface. The electric arc welding of the coated electrode is adopted by backing welding, which ensures welding accessibility of the node of a thick-walled pipe and welding penetration of the root of a welding seam. The gas shielded welding of flux-cored wire CO2 is adopted by filling and facing, which is suitable for the characteristic of all position welding of the node of the pipe, and simultaneously, the efficiency of welding procedure is improved.
Description
Technical field:
Latent formula type platform complex K node welding is the buoyancy aid carrying K type structure division welding technique of seafari and production platform device.
Background technology:
Semisubmersible platform is the exploration and the quarrying apparatus of deep-sea oil/natural gas resource.Because working environment is extremely abominable, technology and security requirement are high.Platform is by two large-scale buoyancy aids carrying totals and various device, copies large-scale tubular construction between buoyancy aid and supports and link into an integrated entity.Form complex K type node between stay pipe.This structure plays fundamental influence to the security of platform, and welding requirements is high.Do not carry out the welding procedure of similar structures in the past.
Summary of the invention:
The present invention is exactly the soldering reliability problem that solves K type node, and a kind of latent formula type platform complex K node welding is provided.
Of the present invention in order to address the above problem, latent formula type platform complex K node welding method, be with the corresponding placement of three sections tubing of K type node, oblique pipe node circumference passes through mutually with the transverse tube outside, it is characterized in that: oblique pipe bevel for welding adopts the form on varied angle, rust limit in whole one week of intersection joint, open for outer groove and from being up to zero from oblique pipe obtuse angle end to mid point up and down and to reduce gradually, open from oblique pipe acute ends to mid point up and down for inboard groove and from being up to and zeroly reduce gradually; Weld from the about two sides of oblique pipe node circumference, covered-electrode welding (SMAW) is adopted in the welding bottoming, and filling and capping adopt flux-cored wire CO
2Gas shielded arc welding (FCAW).
The present invention compared with the prior art, it is as follows to have advantage: by rationally determining on groove, adapted to the different particularity of each point nature angle on the oblique pipe node circumferential weld, the groove type of gradual change has guaranteed about two sides soldering reliability; Backing welding adopts covered-electrode welding, and suitable gap, has improved the access for welding of thick-walled pipe node, has guaranteed the through welding of the root of weld, fills and capping employing flux-cored wire CO
2Gas shielded arc welding had both adapted to the characteristics of pipe node all-position welding, had improved welding procedure efficient simultaneously.
Description of drawings:
Accompanying drawing has been represented corresponding placement of three sections tubing of a kind of K type node of the present invention and groove type structural representation, wherein Fig. 1 is three sections tubing correspondence positions of K type node structural representation, Fig. 2 is the groove type structural representation, and Fig. 3,4,5 is respectively A, B, C three means of spot welds position views.Example below in conjunction with accompanying drawing further specifies.
The specific embodiment:
This latent formula type platform complex K node welding method of the present invention, be used for the welding of the exploration BINGO 9000 latent formula platform K type nodes of deep-sea oil/natural gas resource, with corresponding place (referring to Fig. 1) of three sections tubing of K type node, 30 degree oblique pipe node circumference pass through mutually with the transverse tube outside.Oblique pipe bevel for welding adopts the form on varied angle, rust limit in whole one week of intersection joint, open for outer groove and from being up to zero from oblique pipe obtuse angle end to mid point up and down and to reduce gradually, open from oblique pipe acute ends to mid point up and down for inboard groove and from being up to and zeroly reduce gradually; As open from oblique pipe obtuse angle end A to last mid point B for outside groove and be reduced to zero gradually from maximum groove, open from oblique pipe acute ends C to last mid point B for inboard groove and from maximum and be reduced to zero gradually.Weld from the about two sides of oblique pipe node circumference, weld whole intersection joint after, just formed as Fig. 6,7,8 welded condition; By rationally determining of each point on groove (referring to Fig. 3,4,5), adapted to the different particularity of each point nature angle on the oblique pipe node circumferential weld, the groove type of gradual change, weld from about two sides, on welding method was determined, covered-electrode welding (SMAW) was adopted in bottoming, and suitable gap, improve the access for welding of thick-walled pipe node, guaranteed the through welding of the root of weld; Fill and capping employing flux-cored wire CO
2Gas shielded arc welding (FCAW) had both adapted to the characteristics of pipe node all-position welding, had improved welding procedure efficient simultaneously.
Claims (1)
1. latent formula type platform complex K node welding method, three sections tubing of K type node are corresponding to be placed, oblique pipe node circumference passes through mutually with the transverse tube outside, it is characterized in that: oblique pipe bevel for welding adopts the form on varied angle, rust limit in whole one week of intersection joint, open for outer groove and from being up to zero from oblique pipe obtuse angle end to mid point up and down and to reduce gradually, open from oblique pipe acute ends to mid point up and down for inboard groove and from being up to and zeroly reduce gradually; Weld from the about two sides of oblique pipe node circumference, covered-electrode welding is adopted in the welding bottoming, and filling and capping adopt flux-cored wire CO
2Gas shielded arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100459314A CN100391676C (en) | 2005-02-22 | 2005-02-22 | Technological method of partly submerged type platform complex K type node welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100459314A CN100391676C (en) | 2005-02-22 | 2005-02-22 | Technological method of partly submerged type platform complex K type node welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1824450A CN1824450A (en) | 2006-08-30 |
| CN100391676C true CN100391676C (en) | 2008-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100459314A Active CN100391676C (en) | 2005-02-22 | 2005-02-22 | Technological method of partly submerged type platform complex K type node welding |
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| CN (1) | CN100391676C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942864B (en) * | 2010-09-10 | 2012-01-04 | 江苏科技大学 | Composited tube node and production method |
| CN104741812B (en) * | 2015-04-08 | 2016-10-05 | 上海电气核电设备有限公司 | The adapter of a kind of minor diameter thin wall oblique cutting and the welding method of overlay cladding |
| CN105234568B (en) * | 2015-04-30 | 2017-12-01 | 浙江精工钢结构集团有限公司 | A kind of full thickness of slab method for weld-penetration welding of Circular Tubular Joints |
| CN105382438B (en) * | 2015-12-24 | 2017-11-10 | 哈尔滨锅炉厂有限责任公司 | New inclining tube welding by both sides groove and welding method |
| CN105921862B (en) * | 2016-06-27 | 2018-07-03 | 中国葛洲坝集团机械船舶有限公司 | A kind of soldering method suitable for steel pipe and steel pipe oblique combination forming |
| CN108453340B (en) * | 2018-03-23 | 2020-11-10 | 上海拓直汽车科技有限公司 | Welding method of steel structure TKY node |
| CN111749130B (en) * | 2019-03-26 | 2022-03-15 | 四川省公路规划勘察设计研究院有限公司 | Design method for improving fatigue strength of steel pipe concrete intersecting welding joint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5428198A (en) * | 1993-01-29 | 1995-06-27 | Framatome | Method and device for the orbital welding of a cylindrical part onto a curved wall |
| JPH0999366A (en) * | 1995-10-03 | 1997-04-15 | Aomori Pref Gov | Method for welding crossed tube |
| JPH1034330A (en) * | 1996-07-25 | 1998-02-10 | Babcock Hitachi Kk | Welded structure between pipes and manufacture thereof |
| JPH10328828A (en) * | 1997-06-03 | 1998-12-15 | Kawasaki Heavy Ind Ltd | Arc welding equipment |
| JP2003285162A (en) * | 2002-03-25 | 2003-10-07 | Takano Co Ltd | Welded joint and frame structure of chair using the same |
-
2005
- 2005-02-22 CN CNB2005100459314A patent/CN100391676C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5428198A (en) * | 1993-01-29 | 1995-06-27 | Framatome | Method and device for the orbital welding of a cylindrical part onto a curved wall |
| JPH0999366A (en) * | 1995-10-03 | 1997-04-15 | Aomori Pref Gov | Method for welding crossed tube |
| JPH1034330A (en) * | 1996-07-25 | 1998-02-10 | Babcock Hitachi Kk | Welded structure between pipes and manufacture thereof |
| JPH10328828A (en) * | 1997-06-03 | 1998-12-15 | Kawasaki Heavy Ind Ltd | Arc welding equipment |
| JP2003285162A (en) * | 2002-03-25 | 2003-10-07 | Takano Co Ltd | Welded joint and frame structure of chair using the same |
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| Publication number | Publication date |
|---|---|
| CN1824450A (en) | 2006-08-30 |
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Owner name: DALIAN SHIPPING HEAVY INDUSTRY GROUP CO., LTD. Free format text: FORMER OWNER: DALIAN NEW SHIPBUILDING HEAVY INDUSTRIES CO., LTD. Effective date: 20100719 |
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Effective date of registration: 20100719 Address after: 116100 No. 1, Haiphong street, Xigang District, Liaoning, Dalian Patentee after: Dalian Shipping Heavy Industry Group Co., Ltd. Address before: 116100 No. 1, Haiphong street, Xigang District, Liaoning, Dalian Patentee before: Dalian New Shipbuilding Heavy Industries Co., Ltd. |