CN104060948A - Assembly welding method for marine riser and auxiliary pipe bracket - Google Patents
Assembly welding method for marine riser and auxiliary pipe bracket Download PDFInfo
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- CN104060948A CN104060948A CN201410246945.1A CN201410246945A CN104060948A CN 104060948 A CN104060948 A CN 104060948A CN 201410246945 A CN201410246945 A CN 201410246945A CN 104060948 A CN104060948 A CN 104060948A
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- assembly welding
- auxiliary pipe
- support
- plate
- bracket
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Abstract
The invention discloses an assembly welding method for a marine riser and an auxiliary pipe bracket. The assembly welding method utilizes an assembly welding tooling and the assembly welding method comprises the following steps: step 1: a full circle barrel body, called a bracket annular plate, is shaped according to specifications of two semicircles corresponding to two semicircle brackets to be processed; the bracket annular plate, each pipeline fixing seat and corresponding bracket semi-rings are processed respectively; step 2: firstly, each pipeline fixing seat is firmly plugged into each corresponding auxiliary pipe bracket on the assembly welding tooling through pin shafts respectively; the bracket annular plate is placed between an adjusting jackscrew in the inner ring and each auxiliary pipe bracket in the outer ring; then, each pipeline fixing seat is assembled and welded with the bracket annular plate; step 3: each bracket semi ring is correspondingly welded on each pipeline fixing seat; step 4: crossing processing is performed, wherein the segmentation center line serves as the criterion to segment the bracket annular plate into two semicircle brackets; step 5: a hinge ear plate and a bolt connection plate are assembled and welded at the joint of the two semicircular brackets, and the marine riser and the auxiliary pipe bracket are obtained. According to the invention, mass processing is achieved and the precision is ensured.
Description
Technical field
The invention belongs to marine drilling product manufacturing technology field, relate to the assembly welding method of a kind of marine riser, auxiliary pipe holder.
Background technology
Marine riser, auxiliary pipe are run-in index group pipe, mainly parts such as pin and box sub, main body tube, a plurality of auxiliary line, auxiliary pipe holders, consist of the parallel placement of group's pipe.When the support of group of stability pipe is worked to assurance pipeline, steadily the accurate control of reliable, operation plays very important effect.
This line holder need be larger by quantity, and due to structural limitations, all marine risers, auxiliary pipe holder all need whole its precision of processing guarantee.But existing manufacture means are difficult to guarantee the precision of this line holder, and manufacture process is more difficult, cost of production is high, fabrication cycle is long.
Summary of the invention
The assembly welding method that the object of this invention is to provide a kind of marine riser, auxiliary pipe holder, has solved the problem that the accuracy of manufacture existing in prior art is low, cost of production is high, fabrication cycle is long.
The technical solution adopted in the present invention is that the assembly welding method of a kind of marine riser, auxiliary pipe holder, utilizes a kind of assembly welding frock, according to following steps, implements:
Step 1, by semicircle support A to be processed and two semicircular specification corresponding to semicircle support B, lower is full circle cylindrical shell, is called support ring flat-plate; The inside and outside periphery of machining support ring flat-plate becomes, and meanwhile, each pipeline holder affiliated on marine riser, auxiliary pipe holder and corresponding support semi-ring is also distinguished to single-piece work one-tenth;
Step 2, first each pipeline holder and each auxiliary pipe holder corresponding in assembly welding frock are pegged graft by bearing pin respectively firm, support ring flat-plate is positioned between the adjusting jackscrew of inner ring and each auxiliary pipe holder of outer ring, utilizes and regulate jackscrew to regulate the mutual alignment of support ring flat-plate and each pipeline holder to reach designing requirement; Again that each pipeline holder and support ring flat-plate assembly welding is firm, be called complex;
Step 3, complex is taken out from assembly welding frock, on each pipeline holder, corresponding each support semi-ring of welding becomes;
Step 4, the work of accompanying each other be take cutting center line and support ring flat-plate are cut into semicircle support A and semicircle support B two parts as benchmark;
Step 5, at semicircle support A and semicircle support B joint assembly welding hinge otic placode and bolt junction plate.
The invention has the beneficial effects as follows, originally the integrated support that needs whole processing is become to split-type structural and disperses and processed, the independent processing of support that is divided into two halves survives the special-purpose marine riser of rear recycling, auxiliary pipe holder assembly welding frock survives its assembly welding, greatly reduce the difficulty of processing of marine riser, auxiliary pipe holder, the accuracy of manufacture that has not only guaranteed marine riser, auxiliary pipe holder has completely solved again that marine riser, the batch production of auxiliary pipe holder are economical, problem efficiently simultaneously, improved marine riser,
The automation of auxiliary pipe holder assembly welding, mechanization degree, shorten the production cycle, cost-saving.
Accompanying drawing explanation
Fig. 1 is the marine riser that will make of the inventive method, the structural representation of auxiliary pipe holder;
Fig. 2 is the installation site schematic diagram of the inventive method while adopting assembly welding frock to carry out marine riser, auxiliary pipe holder assembly welding;
Fig. 3 is the schematic cross-section of Fig. 2.
In figure, 1. semicircle support A, 2. semicircle support B, 3. base plate, 4. support ring flat-plate, 5. auxiliary pipe holder, 6. locking bearing pin, 7. regulates jackscrew, 8. jackscrew groove, 9. hinge otic placode, 10. bolt junction plate, 11. mud line supports, 12. throttle well killing line holders, 13. hydraulic line supports, 14. ocean supervisor's trepannings, 15. pipeline holders, 16. support semi-rings.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
With reference to Fig. 1, the marine riser of the inventive method made, auxiliary pipe holder (finished product) structure are, the semicircle support A1 and the semicircle support B2 that comprise concentric docking, the inside and outside wall equal diameters of semicircle support A1 and semicircle support B2, surrounds ocean supervisor's trepanning 14 together; Same one end outer round surface of semicircle support A1 and semicircle support B2 joint is provided with corresponding hinge otic placode 9, and this is to hinged by pin between hinge otic placode 9; The other end of semicircle support A1 and semicircle support B2 joint is provided with corresponding bolt junction plate 10, and this is to being bolted to connection between bolt junction plate 10;
On semicircle support A1 and semicircle support B2 outer wall, be installed with as required respectively the standpipe of respective numbers, the line holder of auxiliary pipe pipeline; Each line holder comprises respectively the pipeline holder 15 being welded on semicircle support A1 or semicircle support B2 excircle, and each pipeline holder 15 outer end is welded with a support semi-ring 16.In Fig. 1 embodiment, show two mud line supports 11, two throttle well killing line holders 12 and hydraulic line supports 13.
With reference to Fig. 2, Fig. 3, the assembly welding tool structure that the inventive method is used is, comprises a discoidal base plate 3, and it (is three groups of jackscrew grooves 8 in figure that the inner ring of base plate 3 is radially provided with many group jackscrew grooves 8, along even circumferential setting), in each jackscrew groove 8, be provided with one and regulate jackscrew 7; Outer ring at base plate 3 is provided with the auxiliary pipe holder 5 of many groups along circumference, the pipeline holder 15 quantity settings that auxiliary pipe holder 5 is installed as required, and position is corresponding (Fig. 2 is corresponding with Fig. 1 number of locations) one by one; Between each auxiliary pipe holder 5 of the adjusting jackscrew 7 of inner ring and outer ring for placing support ring flat-plate 4 cylindraceous.
The preparation method of marine riser of the present invention, auxiliary pipe holder is, utilizes above-mentioned assembly welding frock, according to following steps, implements:
Step 1, by semicircle support A1 to be processed and two semicircular specification corresponding to semicircle support B2, lower is full circle cylindrical shell, is called support ring flat-plate 4; The inside and outside periphery of machining support ring flat-plate 4 becomes, and meanwhile, each pipeline holder 15 affiliated on marine riser, auxiliary pipe holder and corresponding support semi-ring 16 is also distinguished to single-piece work one-tenth;
Step 2, first each pipeline holder 15 and each auxiliary pipe holder 5 corresponding in assembly welding frock are pegged graft by bearing pin 6 respectively firm, support ring flat-plate 4 is positioned between the adjusting jackscrew 7 of inner ring and each auxiliary pipe holder 5 of outer ring, utilize and regulate jackscrew 7 to regulate support ring flat-plate 4 and the mutual alignment of each pipeline holder 15 to reach designing requirement, the support ring flat-plate 4 that is about to process and each pipeline holder 15 are positioned in assembly welding frock, the positioning requirements while relying on assembly welding frock can guarantee each pipeline holder 15 with support ring flat-plate 4 assembly welding; Again that each pipeline holder 15 is firm with support ring flat-plate 4 assembly weldings, be called complex (as shown in Figure 2);
Step 3, unclamp all adjusting jackscrews 7, extract all bearing pins 6 out, rotate slightly complex and complex is taken out from assembly welding frock, on each pipeline holder 15, corresponding each support semi-ring of welding is 16 one-tenth;
Step 4, the work of accompanying each other be take cutting center line and support ring flat-plate 4 are cut into semicircle support A1 and semicircle support B2 two parts (as shown in Figure 1) as benchmark;
Step 5, at semicircle support A1 and semicircle support B2 joint assembly welding hinge otic placode 9 and bolt junction plate 10 (as shown in Figure 1), when assembly welding hinge otic placode 9 and bolt junction plate 10, preferably wear bearing pin so as accurately location.
The operating principle of the inventive method is,
Consider the integral support manufacturing difficulty of marine riser, auxiliary pipe holder, by original one welding, changing rack body into two semicircle flanges assembles, two semicircle flange brackets are first lower to the inside and outside periphery of processing after full circle (support ring flat-plate 4) becomes, and each pipeline holder (embodiment is 5 groups) single-piece work becomes.For the support ring flat-plate 4 of full circle, wearing alignment pin with each pipeline holder is down fixed in assembly welding frock, now marine riser, auxiliary pipe holder (Fig. 2) position assembly welding in assembly welding frock, postwelding carries out overall thermal timeliness and eliminates stress, then process on request cutting support ring flat-plate 4, and then the two semicircular support milling by drawing that cutting is opened becomes A1, two semicircle stake bodies of B2, both connect hinge otic placode 9 and the bolt junction plate 10 of use last assembly welding, and so far marine riser, auxiliary pipe holder are made on request.
Adopt marine riser of the present invention, auxiliary pipe holder assembly welding frock, by originally becoming split finding dispersion processing on little lathe by the whole large component of processing on large lathe, greatly shortened the support production cycle, adapt to batch production needs.
Claims (2)
1. an assembly welding method for marine riser, auxiliary pipe holder, its feature is, utilizes a kind of assembly welding frock, according to following steps, implements:
Step 1, by two semicircular specification corresponding to semicircle support A (1) to be processed and semicircle support B (2), lower is full circle cylindrical shell, is called support ring flat-plate (4); The inside and outside periphery of machining support ring flat-plate (4) becomes, and meanwhile, each pipeline holder (15) affiliated on marine riser, auxiliary pipe holder and corresponding support semi-ring (16) is also distinguished to single-piece work one-tenth;
Step 2, first each pipeline holder (15) and each auxiliary pipe holder (5) corresponding in assembly welding frock are pegged graft by bearing pin (6) respectively firm, support ring flat-plate (4) is positioned between the adjusting jackscrew (7) of inner ring and each auxiliary pipe holder (5) of outer ring, utilizes and regulate jackscrew (7) to regulate support ring flat-plate (4) and the mutual alignment of each pipeline holder (15) to reach designing requirement; Again that each pipeline holder (15) and support ring flat-plate (4) assembly welding is firm, be called complex;
Step 3, complex is taken out from assembly welding frock, at upper corresponding each support semi-ring (16) of welding of each pipeline holder (15), become;
Step 4, the work of accompanying each other be take cutting center line and support ring flat-plate (4) are cut into semicircle support A (1) and semicircle support B (2) two parts as benchmark;
Step 5, at semicircle support A (1) and semicircle support B (2) joint assembly welding hinge otic placode (9) and bolt junction plate (10).
2. the assembly welding method of marine riser according to claim 1, auxiliary pipe holder, its feature is: described assembly welding tool structure is, comprise a discoidal base plate (3), the inner ring of base plate (3) is radially provided with many group jackscrew grooves (8), is provided with one and regulates jackscrew (7) in each jackscrew groove (8); Outer ring at base plate (3) is fixedly installed many group auxiliary pipe holders (5) along circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410246945.1A CN104060948B (en) | 2014-06-05 | 2014-06-05 | The assembly welding method of marine riser, auxiliary pipe holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410246945.1A CN104060948B (en) | 2014-06-05 | 2014-06-05 | The assembly welding method of marine riser, auxiliary pipe holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104060948A true CN104060948A (en) | 2014-09-24 |
| CN104060948B CN104060948B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410246945.1A Expired - Fee Related CN104060948B (en) | 2014-06-05 | 2014-06-05 | The assembly welding method of marine riser, auxiliary pipe holder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656892A (en) * | 2019-09-30 | 2020-01-07 | 宝鸡石油机械有限责任公司 | Large-diameter cylindrical chuck for super-thick plate and assembly welding method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201141483Y (en) * | 2007-12-13 | 2008-10-29 | 中建三局第一建设工程有限责任公司 | Prefabricated composite stand pipe |
| CN101424169A (en) * | 2008-11-22 | 2009-05-06 | 宝鸡石油机械有限责任公司 | Ocean petroleum well drilling vertical tube pressure equilibrium method and ocean petroleum filling well drilling safety valve |
| CN102235156A (en) * | 2010-05-07 | 2011-11-09 | 中国海洋石油总公司 | Stand pipe limiting device |
| CN102421985A (en) * | 2009-04-28 | 2012-04-18 | 韦特柯格雷公司 | Riser buoyancy adjustable thrust column |
| CN202578652U (en) * | 2012-04-13 | 2012-12-05 | 中国海洋石油总公司 | In-place auxiliary bracket for vertical pipe |
-
2014
- 2014-06-05 CN CN201410246945.1A patent/CN104060948B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201141483Y (en) * | 2007-12-13 | 2008-10-29 | 中建三局第一建设工程有限责任公司 | Prefabricated composite stand pipe |
| CN101424169A (en) * | 2008-11-22 | 2009-05-06 | 宝鸡石油机械有限责任公司 | Ocean petroleum well drilling vertical tube pressure equilibrium method and ocean petroleum filling well drilling safety valve |
| CN102421985A (en) * | 2009-04-28 | 2012-04-18 | 韦特柯格雷公司 | Riser buoyancy adjustable thrust column |
| CN102235156A (en) * | 2010-05-07 | 2011-11-09 | 中国海洋石油总公司 | Stand pipe limiting device |
| CN202578652U (en) * | 2012-04-13 | 2012-12-05 | 中国海洋石油总公司 | In-place auxiliary bracket for vertical pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656892A (en) * | 2019-09-30 | 2020-01-07 | 宝鸡石油机械有限责任公司 | Large-diameter cylindrical chuck for super-thick plate and assembly welding method thereof |
| CN110656892B (en) * | 2019-09-30 | 2021-07-13 | 宝鸡石油机械有限责任公司 | Large-diameter cylindrical chuck for super-thick plate and assembly welding method thereof |
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| CN104060948B (en) | 2016-01-20 |
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