CN101898281B - 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 PDF

Info

Publication number
CN101898281B
CN101898281B CN2010102420803A CN201010242080A CN101898281B CN 101898281 B CN101898281 B CN 101898281B CN 2010102420803 A CN2010102420803 A CN 2010102420803A CN 201010242080 A CN201010242080 A CN 201010242080A CN 101898281 B CN101898281 B CN 101898281B
Authority
CN
China
Prior art keywords
assembling
storage tank
drag hook
welding
steel wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010102420803A
Other languages
Chinese (zh)
Other versions
CN101898281A (en
Inventor
郭则明
方法多
易昶
唐谱洪
黄金祥
刘方兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Yiye Steel Structure Co Ltd
Original Assignee
Wuhan Yiye Steel Structure Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Yiye Steel Structure Co Ltd filed Critical Wuhan Yiye Steel Structure Co Ltd
Priority to CN2010102420803A priority Critical patent/CN101898281B/en
Publication of CN101898281A publication Critical patent/CN101898281A/en
Application granted granted Critical
Publication of CN101898281B publication Critical patent/CN101898281B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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

The anti-deformation method of guyed assembling and welding large-scale horizontal storage tank shell section
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 in good each segmentation of assembly jig welding, welds the circumferential weld between the segmentation again after adopting lift-on/lift-off system with several segmentations assemblings then., assembly welding, when welding, is prone to generation certain deformation amount, when crouching the jar single split so the anti-deformation measure is very important because the horizontal tank diameter is big, cylinder board thickness is big.During assembly welding, traditional method is to adopt angle steel to the large-size horizontal storage tank, in tank body, is welded into the support of " rice " font 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
To 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 realizing above-mentioned purpose; 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, tighten drag-line and apply the distortion reaction force at the shell ring inwall; Carry out assembly welding again, specifically may further comprise the steps:
(a) it is inboard when shell ring is assembled, otic placode evenly to be welded on the shell ring plate of same sagittal plane, and 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 through 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.
Said winding device by conveyor screw, go up drag hook and down drag hook forms, last drag hook and following drag hook end be provided with screw thread 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 through steel wire rope between last drag hook and the connecting plate, following drag hook is connected with otic placode.
Said bearing is the zanjon ball bearing.
The present invention adopts steel wire rope and winding device etc. that horizontal tank inside is connected, and through 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 accompanying drawing and specific embodiment technical scheme of the present invention is done further explanation, referring to Fig. 1 to Fig. 4:
Large-size horizontal storage tank cylindrical shell assembly welding anti-deformation drag-line by the present invention's enforcement; 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 being made up of otic placode 1, winding device 2, steel wire rope 3, connecting plate 5, bearing 4, and otic placode 1 evenly distributes and is connected shell ring 6 arc coverboards inboard; Winding device 2 is connected between connecting plate 5 and the otic placode 1, and winding device 2 is connected through steel wire rope 3 with connecting plate 5, and connecting plate 5 is arranged on the center of storage tank cylindrical shell; The center fixation bearing 4 of connecting plate 5; Present embodiment adopts zanjon ball bearing 4, and zanjon ball bearing 4 shells and connecting plate 5 are fixing, and 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 otic placode 1 arc coverboard that is welded on shell ring 6 that evenly distributes is inboard, and each arc coverboard connects 3~5, takes during welding otic placode 1 and welds the identical technology of shell ring 6 longitudinal joints, does not allow to occur the undercut phenomenon, and will avoid shell ring 6 longitudinal joints when arranging otic placode 1.It is stressed even with the shell ring 6 that guarantees the storage tank cylindrical shell that all otic placodes 1 are in same radial section.Cylindrical shell closes up the back greatly and adopts the flame cutting that otic placode 1 is sliced off, and does same Non-Destructive Testing after wearing down with smooth back of cylindrical shell welding position surface finish and work card tool.
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 being made up of conveyor screw 9, last drag hook 8 and following drag hook 11; Last drag hook 8, down drag hook 11 can with round steel endways behind the external threading at other end processing drag hook; To turn conveyor screw 9 and make drag hook 8 and play drag hook 11 precessions simultaneously or back-out conveyor screw 9 in order to reach; The thread rotary orientation of last drag hook 8 and play drag hook 11 is opposite, and conveyor screw 9 double-ended vehicles have internal thread and last drag hook 8, the screw thread that cooperates of drag hook 11 down, said winding device 2 by conveyor screw 9, under upward drag hook 8 reaches drag hook 11 form; Last drag hook 8 is provided with screw thread with play drag hook 11 ends and both rotation directions are opposite, and conveyor screw 9 double-ended vehicles have internal thread to cooperate respectively with last drag hook 8, time drag hook 11 screw threads; Be connected through steel wire rope 3 between last drag hook 8 and the connecting plate 5, following drag hook 11 is connected through 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.
Implementation process of the present invention 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 through steel wire rope 3, and the head end of winding device 2 links to each other with center connecting plate 5 through steel wire rope 3;
(3) the fixing zanjon ball bearing 4 in connecting plate 5 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 disclosedly be merely preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, the equivalence of therefore doing according to claim of the present invention 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) it is inboard when shell ring (6) is assembled, otic placode (1) evenly to be welded on shell ring (6) plate of same sagittal plane, and 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) through steel wire rope (3), forms adjustable drag-line; Described connecting plate (5) is arranged on the center of storage tank cylindrical shell;
(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: said 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 through 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: said bearing (4) is the zanjon ball bearing.
CN2010102420803A 2010-08-02 2010-08-02 Method for preventing deformation of guyed assembling and welding large-scale horizontal storage tank shell section Expired - Fee Related CN101898281B (en)

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

Publications (2)

Publication Number Publication Date
CN101898281A CN101898281A (en) 2010-12-01
CN101898281B true CN101898281B (en) 2012-05-30

Family

ID=43224390

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (1)

Country Link
CN (1) CN101898281B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
CN104900281B (en) * 2014-03-04 2018-07-06 江苏核电有限公司 A kind of nuclear reactor pressure container sealing ring producing device and production method
CN104453326A (en) * 2014-11-28 2015-03-25 东北石油大学 Large storage tank
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
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6247634B1 (en) * 1999-06-30 2001-06-19 Mce Technologies Incorporated Method and apparatus for forming a stir welded joint at meeting cylindrical edges
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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
JP2009047352A (en) * 2007-08-20 2009-03-05 Calsonic Kansei Corp Heat accumulator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6247634B1 (en) * 1999-06-30 2001-06-19 Mce Technologies Incorporated Method and apparatus for forming a stir welded joint at meeting cylindrical edges
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

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JP特开2009-47352A 2009.03.05
JP特开平7-47491A 1995.02.21

Also Published As

Publication number Publication date
CN101898281A (en) 2010-12-01

Similar Documents

Publication Publication Date Title
CN101898281B (en) Method for preventing deformation of guyed assembling and welding large-scale horizontal storage tank shell section
US9669902B2 (en) Hydrofoil
CN201769016U (en) Large-sized horizontal storage tank drum assembling and welding deformation-preventive pull rope
CN213145677U (en) Flange quick connector structure
WO2010084320A2 (en) Composite blade
CN102062685B (en) Fatigue test device of rubber bearing
CA2776735C (en) Pipe compression clamp
CN102170099B (en) Single insulator device for changing power transmission line with voltage of 35-500 kV or more while powering on/off
US20110268530A1 (en) Connecting arrangement and method of fastening a bolt
CN201925412U (en) R4 grade rotating ring
CN214690096U (en) Adjustable marine stretching piece
CN206455613U (en) The attaching/detaching apparatus of stud
CN201833147U (en) U-shaped clamp applied to construction sites
CN101280820B (en) Tighten positioning bolt
CN207215415U (en) A kind of pipeline clamping device and pipeline support
US20150128839A1 (en) Sail bearing
CN219684475U (en) Alignment device suitable for pipeline butt welding burns
CN102060085A (en) R4-class swivel
CN206243510U (en) A kind of aircraft rudder load transfer means
CN220701987U (en) Elastic hook rope with replaceable hook head
CN201193673Y (en) Tightening positioning bolt
CN202790010U (en) Expanding-type thread binding sleeve
CN206627372U (en) A kind of efficiently swinging hydraulic pressure testing device
CN215567044U (en) Nondestructive clamping device for pipe connection quick-release clamp assembly
CN220080912U (en) Angle steel tower reinforcing apparatus of mosaic structure

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120530

Termination date: 20210802