CN104453249A - Super-long steel pipe transfer technology - Google Patents
Super-long steel pipe transfer technology Download PDFInfo
- Publication number
- CN104453249A CN104453249A CN201410508586.2A CN201410508586A CN104453249A CN 104453249 A CN104453249 A CN 104453249A CN 201410508586 A CN201410508586 A CN 201410508586A CN 104453249 A CN104453249 A CN 104453249A
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- China
- Prior art keywords
- steel pipe
- workshop
- steel
- flat car
- cup supports
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Abstract
A super-long steel pipe transfer technology includes the following steps that firstly, a first set of cup supports are arranged on the floor of a workshop, then a first steel pipe section is suspended to the cup supports through a crane; secondly, a second set of cup supports are arranged behind the first set of cup supports, then a second steel pipe section is suspended to the second set of cup supports through the crane, and assembled and welded to the first steel pipe section; thirdly, a cup support in the middle is cut off and taken out, then a flat car is placed below the steel pipe, the two sides of the steel pipe are fixed with I-shaped steel after the flat car is jacked to make tight contact with the steel pipe, and a reinforcing rib plate is welded to the I-shaped steel and the steel pipe; fourthly, after all the cup supports are taken out, the lengthened rolled steel pipe is transferred to a rolling and lengthening construction site for lengthening prefabrication. Steel pipes can be lengthened in the workshop, the problem that the hosting capacity in the workshop cannot meet the requirement for lengthening super-long rolled steel pipes is solved, and besides, and the use cost of a site large-scale crawler crane and the construction cost are reduced.
Description
Technical field
The present invention relates to the movement technique of steel pipe, particularly relate to a kind of movement technique of the ultralong steel tube for the construction of ultra-large type offshore platform.Belong to Offshore Engineering field.
Background technology
Along with the maximization of jacket and upper chunk, its steel pipe rolled built also towards maximization, large wall thickness, the future developments such as nonlinear type.In order to ensure construction quality, when carrying out these steel pipes and rolling spreading, have to carry out in workshop a large amount of roll spreading work.And some steel pipe is after spreading, its weight is beyond the lift heavy ability of workshop crane, and bring certain difficulty to the construction in workshop, if rolling the site operation of spreading, also following problems may be encountered:
One, need to set up scaffold at the scene, cause using more manpower and materials.
Two, need the cooperation of large caterpillar, so, not only increase the utilization rate of large caterpillar, improve construction cost; And use large caterpillar lifting nonlinear type steel pipe, center of gravity is not easily grasped, and has certain danger.
Three, duty cycle is longer, and operating environment is unstable, can not ensure welding quality.
Summary of the invention
Main purpose of the present invention is the above-mentioned shortcoming overcoming prior art existence, and provides a kind of movement technique of ultralong steel tube, and it can not only realize spreading in workshop, solves Lifting Capacity in workshop can not meet the difficult problem that overlength rolls steel pipe spreading; And, save on-the-spot large caterpillar and use, reduce construction cost; Meanwhile, do not need to consider on-the-spot state of weather, improve the safety of welding quality and construction.
The object of the invention is to be realized by following technical scheme:
A movement technique for ultralong steel tube, is characterized in that: adopt following steps:
The first step: be arranged on the ground in workshop by several pad piers of first group, then, utilize workshop crane, is placed on pad pier by first paragraph steel tube suspending;
Second step; Second group of several pad pier is arranged on after first group of several pad pier, then, utilizes workshop crane, second segment steel tube suspending is placed on several pad piers of second group, and second segment steel pipe is grouping with first paragraph steel pipe welds;
3rd step: cutting off taking-up by being located at a middle pad pier, then, flat car being placed on below steel pipe, by flat car jacking to and steel pipe close contact after, with i iron, steel pipe both sides are fixed, re-use reinforcement gusset and be welded on i iron and steel pipe;
4th step: after being taken out all pad piers, is transported to the build the side rolling spreading by flat car by the steel pipe that rolls after spreading to carry out spreading prefabricated.
Beneficial effect of the present invention: the present invention is owing to adopting technique scheme, and it can not only realize spreading in workshop, solves Lifting Capacity in workshop and can not meet the difficult problem that overlength rolls steel pipe spreading; And, save on-the-spot large caterpillar and use, reduce construction cost; Meanwhile, do not need to consider on-the-spot state of weather, improve the safety of welding quality and construction.
Accompanying drawing explanation
Fig. 1 is that schematic diagram arranged by first paragraph steel pipe of the present invention
Fig. 2 is that schematic diagram arranged by second segment steel pipe of the present invention.
Fig. 3 is flat car jacking schematic diagram of the present invention.
Fig. 4 is that flat car of the present invention transports schematic diagram.
Major label description in figure:
1. steel pipe, 2. pad pier, 3. flat car, 4, i iron.
Detailed description of the invention
The present invention adopts following steps:
Several pad piers 2 of first group are arranged on the ground in workshop, then, utilize workshop crane by the first step: as shown in Figure 1, are hung by first paragraph steel pipe 1 on pad pier 2;
Second step; As shown in Figure 2, second group of several pad pier 2 is arranged on after first group of several pad pier 2, then, utilizes workshop crane, second segment steel pipe 1 is hung on several pad piers 2 of second group, and second segment steel pipe 1 is grouping with first paragraph steel pipe 1 welds;
3rd step: as shown in Figure 3, taking-up is cut off with burning torch by being located at a middle pad pier 2, then, flat car 3 is placed on below steel pipe 1, by flat car 3 jacking to and steel pipe 1 close contact after, with i iron 4, steel pipe 1 both sides are fixed, re-use reinforcement gusset and be welded on i iron 4 and steel pipe 1, add stiff stability.
4th step: as shown in Figure 4, after being taken out by all pad piers 2, is transported to the build the side rolling spreading by flat car 3 by the steel pipe 1 that rolls after spreading to carry out spreading prefabricated.
Above-mentioned flat car 3 is prior art, and the technology of not specified (NS) is prior art, therefore repeats no more.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (1)
1. a movement technique for ultralong steel tube, is characterized in that: adopt following steps:
The first step: be arranged on the ground in workshop by several pad piers of first group, then, utilize workshop crane, is placed on pad pier by first paragraph steel tube suspending;
Second step; Second group of several pad pier is arranged on after first group of several pad pier, then, utilizes workshop crane, second segment steel tube suspending is placed on several pad piers of second group, and second segment steel pipe is grouping with first paragraph steel pipe welds;
3rd step: cutting off taking-up by being located at a middle pad pier, then, flat car being placed on below steel pipe, by flat car jacking to and steel pipe close contact after, with i iron, steel pipe both sides are fixed, re-use reinforcement gusset and be welded on i iron and steel pipe;
4th step: after being taken out all pad piers, is transported to the build the side rolling spreading by flat car by the steel pipe that rolls after spreading to carry out spreading prefabricated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410508586.2A CN104453249A (en) | 2014-09-28 | 2014-09-28 | Super-long steel pipe transfer technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410508586.2A CN104453249A (en) | 2014-09-28 | 2014-09-28 | Super-long steel pipe transfer technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104453249A true CN104453249A (en) | 2015-03-25 |
Family
ID=52899938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410508586.2A Pending CN104453249A (en) | 2014-09-28 | 2014-09-28 | Super-long steel pipe transfer technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104453249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487212A (en) * | 2018-03-13 | 2018-09-04 | 海洋石油工程股份有限公司 | Jacket skirt pile sleeve combines sheet of hoisting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003343087A (en) * | 2002-05-30 | 2003-12-03 | Panahome Corp | Conveying equipment and working method for building site |
| CN2739056Y (en) * | 2004-09-28 | 2005-11-09 | 吴勇 | Oil-pipe conveying device |
| CN101879932A (en) * | 2009-05-08 | 2010-11-10 | 中国海洋石油总公司 | Method for lengthening and lading steel piles of large deepwater jacket |
| CN102602441A (en) * | 2012-03-25 | 2012-07-25 | 中国葛洲坝集团国际工程有限公司 | Steel pipe transport trolley and steel pipe joint mounting method |
| CN102653275A (en) * | 2012-04-25 | 2012-09-05 | 中国海洋石油总公司 | Portable yard carrier trolley and application method thereof |
-
2014
- 2014-09-28 CN CN201410508586.2A patent/CN104453249A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003343087A (en) * | 2002-05-30 | 2003-12-03 | Panahome Corp | Conveying equipment and working method for building site |
| CN2739056Y (en) * | 2004-09-28 | 2005-11-09 | 吴勇 | Oil-pipe conveying device |
| CN101879932A (en) * | 2009-05-08 | 2010-11-10 | 中国海洋石油总公司 | Method for lengthening and lading steel piles of large deepwater jacket |
| CN102602441A (en) * | 2012-03-25 | 2012-07-25 | 中国葛洲坝集团国际工程有限公司 | Steel pipe transport trolley and steel pipe joint mounting method |
| CN102653275A (en) * | 2012-04-25 | 2012-09-05 | 中国海洋石油总公司 | Portable yard carrier trolley and application method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487212A (en) * | 2018-03-13 | 2018-09-04 | 海洋石油工程股份有限公司 | Jacket skirt pile sleeve combines sheet of hoisting |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |