CN101898281A - Method for preventing deformation of guyed assembling and welding large-scale horizontal storage tank shell section - Google Patents
Method for preventing deformation of guyed assembling and welding large-scale horizontal storage tank shell section Download PDFInfo
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- CN101898281A CN101898281A CN 201010242080 CN201010242080A CN101898281A CN 101898281 A CN101898281 A CN 101898281A CN 201010242080 CN201010242080 CN 201010242080 CN 201010242080 A CN201010242080 A CN 201010242080A CN 101898281 A CN101898281 A CN 101898281A
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- storage tank
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Abstract
The present invention relates to the field of an assembling and welding device of large-scale horizontal tanks, in particular to a method for preventing deformation of guyed assembling and welding a large-scale horizontal storage tank shell section. The method is characterized by comprising the following steps of: connecting adjustable stay cables in the internal wall of the shell section after assembling an arc-shaped shell board of the shell section, tightening the stay cables, applying a deformation reacting force, then assembling and welding. The method adopts the steel wire ropes and a screwing device to connect the internal parts of the horizontal storage tank, and prevents the deformation through tightening the steel wire ropes. The method can quickly adjust the screwing device to adjust the tightening force of the steel wire ropes according to the states in the field, thereby further adjusting the deformation quantity; simultaneously, the method can directly adjust parts of the large-scale horizontal storage tank whose ovality exceeds the standard for meeting the requirements of the construction technology. The device can be conveniently detached and reused.
Description
Technical field
The present invention relates to large-scale jar assembly welding apparatus field for sleeping in, relate in particular to and a kind ofly both can play the anti-deformation effect, also can be used as the anti-deformation drag-line of the instrument of regulating the tank body ovality.
Background technology
The capital equipment of full voltage type liquefied petroleum gas (LPG) cargo ship is the large-size horizontal storage tank, is used for the accumulating liquefied petroleum gas.The characteristics of LPG cargo ship storage tank: volume is big, and quality is big, and length is long, and storage tank is made up of straight barrel and end socket, belongs to the boat-carrying pressure vessel.Because of its construction difficulty is big, domestic have this unit that builds ability also few.The general on-the-spot method in bulk of jar employing that crouches is built.
Large-size horizontal storage tank tank body is that shell ring is formed by a plurality of segmentations usually, and each segmentation is made up of 4 to 5 arc coverboards again.Storage tank body assembling at present adopts method in bulk to weld each segmentation at assembly jig, welds the circumferential weld between the segmentation after adopting lift-on/lift-off system that several segmentations are assembled then again.Because the horizontal tank diameter is big, cylinder board thickness is big, the easy certain deformation amount that produces when welding is so the anti-deformation measure is very important when for sleeping in jar of single split of assembly welding.During assembly welding, traditional method is to adopt angle steel to the large-size horizontal storage tank, is welded into the support of " rice " font in tank body at the scene, and tank body is advanced the reversible deformation reinforcing.This anti-deformation mode can't be carried out corresponding adjusting to pretightning force according to deflection, and dismounting inconvenience.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of can on-the-spot quick adjustment tensile force and the anti-deformation method of the guyed assembling and welding large-scale horizontal storage tank shell section of easy accessibility.
For achieving the above object, the scheme that the present invention adopts is: a kind of anti-deformation method of guyed assembling and welding large-scale horizontal storage tank shell section, it is characterized in that: after assembling shell ring arc coverboard, connect drag-line at the shell ring inwall, tighten drag-line and apply the distortion reaction force, carry out assembly welding again, specifically may further comprise the steps:
(a) otic placode evenly is welded on the shell ring plate inboard of same sagittal plane when shell ring is assembled, the pad of otic placode is avoided the setting of shell ring longitudinal seam;
(b) every otic placode connects a winding device, and the other end of winding device links to each other with connecting plate by steel wire rope;
(c) connecting plate center drilling place fixed installation bearing, the submerged arc welding cable passes the bearing centre hole;
(d) regulate winding device, steel wire rope is tightened, apply distortion-free pretightning force;
(e) detect the tank local location ovality that crouches and whether exceed standard, if the then winding device of specific aim adjusting corresponding position of position that exceeds standard is arranged;
(f) after cylindrical shell closed up greatly, the turn winding device unclamped steel wire rope, adopted the flame cutting that otic placode is sliced off then, did same Non-Destructive Testing after wearing down with smooth back of cylindrical shell welding position surface finish and work card tool.
Described winding device by conveyor screw, go up drag hook and down drag hook forms, last drag hook be provided with screw thread with following drag hook end and both rotation directions opposite, the conveyor screw double-ended vehicle has internal thread to cooperate respectively with last drag hook, following drag hook screw thread; Be connected by steel wire rope between last drag hook and the connecting plate, following drag hook is connected with otic placode.
Described bearing is the zanjon ball bearing.
The present invention adopts steel wire rope and winding device etc. that horizontal tank inside is connected, and by tightening steel wire rope, plays the anti-deformation effect, and can be according to field condition, and the quick adjustment winding device to be regulating tension force of steel wire, thereby further regulates deflection; Simultaneously, also can the position that large-size horizontal storage tank tank body ovality exceeds standard be specifically regulated, make it to satisfy construction technical requirement; This installs easy accessibility, and is reusable.
Description of drawings
Fig. 1 is the schematic cross-section of the embodiment of the invention;
Fig. 2 is the winding device cutaway view in the embodiment of the invention;
Fig. 3 is a side view of going up drag hook in the embodiment of the invention;
Fig. 4 does not have the winding device side view of drag hook down in the embodiment of the invention;
Among the figure: 1-otic placode, 2-winding device, 3-steel wire rope, 4-bearing, 5-connecting plate, 6-shell ring, 7-positioner, the last drag hook of 8-, 9-conveyor screw, 10-handle hole, drag hook under the 11-.
The specific embodiment
For understanding the present invention better, below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described further, referring to Fig. 1 to Fig. 4:
By large-size horizontal storage tank cylindrical shell assembly welding anti-deformation drag-line of the invention process, the shell ring 6 that is used for assembly welding large-size horizontal storage tank tank body, the similar bicycle quick spoke of the structure of present embodiment, the arc coverboard connection drag-line at shell ring 6 produces pretightning force by drag-line and resists welding deformation.In order to regulate the tension force of drag-line easily according to field condition, drag-line is by otic placode 1 is arranged, winding device 2, steel wire rope 3, connecting plate 6, bearing 4 is formed, otic placode 1 evenly distributes and is connected shell ring 6 arc coverboard inboards, winding device 2 is connected between connecting plate 6 and the otic placode 1, winding device 2 is connected by steel wire rope 3 with connecting plate 6, connecting plate 6 is arranged on the center of storage tank cylindrical shell, the center fixation bearing 4 of connecting plate 6, present embodiment adopts zanjon ball bearing 4, zanjon ball bearing 4 shells and connecting plate 5 are fixing, inner ring is rotatable, like this, when storage tank shell ring 6 and drag-line rotated together, the inner ring that is installed with the submerged arc cable can keep static relatively, thereby avoids the wearing and tearing of cable.
The effect of winding device 2 is to be in tensioning state when making steel wire rope 3 work, and steel wire rope 3 is in relaxed state during mounting or dismounting, is convenient to install or dismounting.The thread fiting mode that winding device 2 is taked, it can be for by conveyor screw 9, last drag hook 8 reaches drag hook 11 compositions down, last drag hook 8, following drag hook 11 can be processed drag hook at the other end behind the external threading endways with round steel, to turn conveyor screw 9 and make drag hook 8 and 11 precessions simultaneously of play drag hook or back-out conveyor screw 9 in order to reach, the thread rotary orientation of last drag hook 8 and following drag hook 11 is opposite, conveyor screw 9 double-ended vehicles have internal thread and last drag hook 8, the screw thread that following drag hook 11 cooperates, described winding device 2 is by conveyor screw 9, last drag hook 8 reaches drag hook 11 compositions down, last drag hook 8 and following drag hook 11 ends are provided with screw thread and both rotation directions are opposite, and conveyor screw 9 double-ended vehicles have internal thread and last drag hook 8, following drag hook 11 screw threads cooperate respectively; Be connected by steel wire rope 3 between last drag hook 8 and the connecting plate 6, following drag hook 11 is connected by steel wire rope 3 with otic placode 1 or directly welding, if directly weld, then play the hook of drag hook 11 to need not to make, directly welding, steel wire rope 3 two ends are pitched system at the scene, and respectively the place of interconnecting adopts snap ring to connect.For the ease of rotating conveyor screw 9, on conveyor screw 9, be provided with handle hole 10, the more laborsaving convenience of rotation behind the insertion steel handle.
The invention process process is:
(1) when shell ring 6 assemblings otic placode 1 is welded on some Along ents place, the inboard same sagittal plane of shell ring 6 plates, the selection of Along ent should be avoided shell ring 6 longitudinal seams;
(2) end with winding device 2 connects or welding otic placode 1 by steel wire rope 3, and the head end of winding device 2 links to each other with center connecting plate 6 by steel wire rope 3;
(3) the fixing zanjon ball bearing 4 in connecting plate 6 center drilling places makes the submerged arc welding cable pass bearing 4 centre bores;
(4) regulate winding device 2 according to the job site, steel wire rope 3 is tightened, play the anti-deformation effect;
(5) if the tank local location ovality that crouches exceeds standard, but specific aim is regulated the winding device 2 of corresponding position, plays school circle effect;
(6) after cylindrical shell closed up greatly, turn winding device 2 unclamped steel wire rope 3, adopted the flame cutting that otic placode 1 is sliced off then, did same Non-Destructive Testing after wearing down with smooth back of cylindrical shell welding position surface finish and work card tool.
Above disclosed only is preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalence of being done according to the present patent application claim changes, and still belongs to protection scope of the present invention.
Claims (3)
1. the anti-deformation method of a guyed assembling and welding large-scale horizontal storage tank shell section, it is characterized in that: after assembling shell ring (6) arc coverboard, connect adjustable drag-line, tighten drag-line and apply the distortion reaction force at shell ring (6) inwall, carry out assembly welding again, specifically may further comprise the steps:
(a) otic placode (1) evenly is welded on shell ring (6) the plate inboard of same sagittal plane when shell ring (6) is assembled, the pad of otic placode (1) is avoided shell ring (6) longitudinal seam setting;
(b) every otic placode (1) connects a winding device (2), and the other end of winding device (2) links to each other with connecting plate (5) by steel wire rope (3), forms adjustable drag-line;
(c) connecting plate (5) center drilling place fixed installation bearing (4), the submerged arc welding cable passes bearing (4) centre bore;
(d) regulate winding device (2), steel wire rope (3) is tightened, apply distortion-free pretightning force;
(e) detect the tank local location ovality that crouches and whether exceed standard, if the then winding device (2) of specific aim adjusting corresponding position of position that exceeds standard is arranged;
(f) after cylindrical shell closed up greatly, turn winding device (2) unclamped steel wire rope (3), adopted the flame cutting that otic placode (1) is sliced off then, did same Non-Destructive Testing after wearing down with smooth back of cylindrical shell welding position surface finish and work card tool.
2. the anti-deformation method of guyed assembling and welding large-scale horizontal storage tank shell section according to claim 1, it is characterized in that: described winding device (2) is made up of conveyor screw (9), last drag hook (8) and following drag hook (11), last drag hook (8) and following drag hook (11) end is provided with screw thread and both rotation directions are opposite, conveyor screw (9) double-ended vehicle have internal thread with last drag hook (8), drag hook (11) screw thread cooperates respectively down; Be connected by steel wire rope (3) between last drag hook (8) and the connecting plate (5), following drag hook (11) is connected with otic placode (1).
3. the anti-deformation method of guyed assembling and welding large-scale horizontal storage tank shell section according to claim 1, it is characterized in that: described bearing (4) is the zanjon ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102420803A CN101898281B (en) | 2010-08-02 | 2010-08-02 | Method for preventing deformation of guyed assembling and welding large-scale horizontal storage tank shell section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102420803A CN101898281B (en) | 2010-08-02 | 2010-08-02 | Method for preventing deformation of guyed assembling and welding large-scale horizontal storage tank shell section |
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| CN101898281A true CN101898281A (en) | 2010-12-01 |
| CN101898281B CN101898281B (en) | 2012-05-30 |
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| CN2010102420803A Expired - Fee Related CN101898281B (en) | 2010-08-02 | 2010-08-02 | Method for preventing deformation of guyed assembling and welding large-scale horizontal storage tank shell section |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363498A (en) * | 2011-10-11 | 2012-02-29 | 国家核电技术公司 | Hoisting system for hoisting assembly module of large container |
| CN102701066A (en) * | 2011-10-11 | 2012-10-03 | 国家核电技术有限公司 | Hoisting method for hoisting assembling module of large container |
| CN104453326A (en) * | 2014-11-28 | 2015-03-25 | 东北石油大学 | Large storage tank |
| CN104900281A (en) * | 2014-03-04 | 2015-09-09 | 江苏核电有限公司 | Nuclear reactor pressure vessel sealing ring production apparatus and nuclear reactor pressure vessel sealing ring production method |
| CN105643171A (en) * | 2015-06-30 | 2016-06-08 | 武汉冶钢结构有限责任公司 | Assembly method based on storage tank fixture |
| CN107309297A (en) * | 2017-07-10 | 2017-11-03 | 中建钢构有限公司 | A kind of tune circle device of steel cylinder |
| CN108466222A (en) * | 2018-04-08 | 2018-08-31 | 东莞市莱钢钢结构有限公司 | A kind of large cylinder body installation and adjustment device |
| CN109014642A (en) * | 2018-09-05 | 2018-12-18 | 中信重工机械股份有限公司 | A kind of large cylinder mixing machine shell ring site welding technology device and assembly welding method |
| CN110106336A (en) * | 2019-04-19 | 2019-08-09 | 贵州航天风华精密设备有限公司 | A kind of heat treatment method of hollow tube-shape casting |
| CN112208724A (en) * | 2020-10-23 | 2021-01-12 | 中船黄埔文冲船舶有限公司 | Deformation-preventing hoisting method for ship open section |
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| JPH0747491A (en) * | 1992-05-29 | 1995-02-21 | Suenaga Kogyosho:Kk | Automatic jig device for welding groove alignment of cylindrical tank |
| US6247634B1 (en) * | 1999-06-30 | 2001-06-19 | Mce Technologies Incorporated | Method and apparatus for forming a stir welded joint at meeting cylindrical edges |
| JP2009047352A (en) * | 2007-08-20 | 2009-03-05 | Calsonic Kansei Corp | Heat accumulator |
| CN101693329A (en) * | 2009-10-29 | 2010-04-14 | 天津重钢机械装备股份有限公司 | Pairing welding device for oil storage tanks and method thereof |
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2010
- 2010-08-02 CN CN2010102420803A patent/CN101898281B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0747491A (en) * | 1992-05-29 | 1995-02-21 | Suenaga Kogyosho:Kk | Automatic jig device for welding groove alignment of cylindrical tank |
| US6247634B1 (en) * | 1999-06-30 | 2001-06-19 | Mce Technologies Incorporated | Method and apparatus for forming a stir welded joint at meeting cylindrical edges |
| JP2009047352A (en) * | 2007-08-20 | 2009-03-05 | Calsonic Kansei Corp | Heat accumulator |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363498A (en) * | 2011-10-11 | 2012-02-29 | 国家核电技术公司 | Hoisting system for hoisting assembly module of large container |
| CN102701066A (en) * | 2011-10-11 | 2012-10-03 | 国家核电技术有限公司 | Hoisting method for hoisting assembling module of large container |
| CN102701066B (en) * | 2011-10-11 | 2014-06-25 | 国家核电技术有限公司 | Hoisting method for hoisting assembling module of large container |
| CN102363498B (en) * | 2011-10-11 | 2014-07-09 | 国家核电技术有限公司 | Hoisting system for hoisting assembly module of large container |
| CN104900281A (en) * | 2014-03-04 | 2015-09-09 | 江苏核电有限公司 | Nuclear reactor pressure vessel sealing ring production apparatus and nuclear reactor pressure vessel sealing ring production method |
| CN104453326A (en) * | 2014-11-28 | 2015-03-25 | 东北石油大学 | Large storage tank |
| CN105643171A (en) * | 2015-06-30 | 2016-06-08 | 武汉冶钢结构有限责任公司 | Assembly method based on storage tank fixture |
| CN105643171B (en) * | 2015-06-30 | 2017-09-29 | 武汉一冶钢结构有限责任公司 | Assembling method based on storage tank fixture |
| CN107309297A (en) * | 2017-07-10 | 2017-11-03 | 中建钢构有限公司 | A kind of tune circle device of steel cylinder |
| CN108466222A (en) * | 2018-04-08 | 2018-08-31 | 东莞市莱钢钢结构有限公司 | A kind of large cylinder body installation and adjustment device |
| CN108466222B (en) * | 2018-04-08 | 2021-07-20 | 将作重工装备科技(广东)有限公司 | Large-scale cylinder installation regulator |
| CN109014642A (en) * | 2018-09-05 | 2018-12-18 | 中信重工机械股份有限公司 | A kind of large cylinder mixing machine shell ring site welding technology device and assembly welding method |
| CN110106336A (en) * | 2019-04-19 | 2019-08-09 | 贵州航天风华精密设备有限公司 | A kind of heat treatment method of hollow tube-shape casting |
| CN112208724A (en) * | 2020-10-23 | 2021-01-12 | 中船黄埔文冲船舶有限公司 | Deformation-preventing hoisting method for ship open section |
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| Publication number | Publication date |
|---|---|
| CN101898281B (en) | 2012-05-30 |
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Granted publication date: 20120530 Termination date: 20210802 |