CN107931944A - A kind of steel construction large-diameter pipeline butt welding erecting device and construction method - Google Patents

A kind of steel construction large-diameter pipeline butt welding erecting device and construction method Download PDF

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Publication number
CN107931944A
CN107931944A CN201711237651.2A CN201711237651A CN107931944A CN 107931944 A CN107931944 A CN 107931944A CN 201711237651 A CN201711237651 A CN 201711237651A CN 107931944 A CN107931944 A CN 107931944A
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CN
China
Prior art keywords
support base
angle steel
pipeline
support
sliding rail
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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.)
Pending
Application number
CN201711237651.2A
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Chinese (zh)
Inventor
刘晓程
张�林
殷勇
谢俊英
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China First Metallurgical Group Co Ltd
Original Assignee
China First Metallurgical Group 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 China First Metallurgical Group Co Ltd filed Critical China First Metallurgical Group Co Ltd
Priority to CN201711237651.2A priority Critical patent/CN107931944A/en
Publication of CN107931944A publication Critical patent/CN107931944A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0533Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • B23K31/027Making tubes with soldering or welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/06Tubes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention discloses a kind of steel construction large-diameter pipeline butt welding erecting device and construction method, which includes base for supporting pipeline, adjustable screw and bolt, sliding rail and support of pipelines;Base for supporting pipeline includes support base stationary plane, support base lifting face and support base fixed frame;Adjustable screw and bolt are arranged between support base stationary plane and support base lifting face, by controlling adjustable screw and bolt to realize that support base lifts the raising and lowering in face;Sliding rail is fixed on support base lifting face, and support of pipelines is arranged on sliding rail, and the horizontal motion of support of pipelines is realized by sliding rail;The device further includes fixed plate and angle steel pawl, and wedge block is provided with angle steel pawl;By the effect of angle steel pawl and wedge block into the adjustment of line interface localized undercut, after the completion of adjustment docking, wedge block is knocked out from angle steel pawl.The present invention can effectively improve the precision of pipeline docking, shorten the duration of pipeline docking construction.

Description

A kind of steel construction large-diameter pipeline butt welding erecting device and construction method
Technical field
The present invention relates to Pipe installing technical field of structures, more particularly to a kind of steel construction large-diameter pipeline butt welding to pacify Assembling device and construction method.
Background technology
Existing Large-diameter Steel structural pipeline abutting joint counterpart low precision, mouth of pipe unfitness of butt joint is big, occurs in docking operation Compared with big gap it is difficult to adjust, labor intensive is excessive during counterpart, therefore causes low construction efficiency.
The content of the invention
The technical problem to be solved in the present invention is relatively low for large-diameter pipeline abutting joint precision in the prior art Defect, there is provided a kind of steel construction large-diameter pipeline butt welding erecting device and construction method.
The technical solution adopted by the present invention to solve the technical problems is:
The present invention provides a kind of steel construction large-diameter pipeline butt welding erecting device, which is symmetrically mounted on two and treats On the cylinder for carrying out pipeline abutting joint, base for supporting pipeline, adjustable screw and bolt are mounted on each cylinder, slides rail Road and support of pipelines;Wherein:
Base for supporting pipeline includes support base stationary plane, support base lifting face and support base fixed frame, support base stationary plane water Safety is supported fixation on cylinder by support base fixed frame;Adjustable screw and bolt are arranged on support base and consolidate Determine between face and support base lifting face, by controlling adjustable screw and bolt to realize that support base lifts the raising and lowering in face; Sliding rail is fixed on support base lifting face, and support of pipelines is arranged on sliding rail, is realized and managed by sliding rail The horizontal motion of road stent;
The device further includes the fixed plate for the welding junction outer fix for being arranged on two pipelines, and is arranged on welding and connects The angle steel pawl of mouthful inner side, is provided with wedge block in angle steel pawl;By the effect of angle steel pawl and wedge block into line interface localized undercut Adjustment, adjustment docking after the completion of, knock out wedge block from angle steel pawl.
Further, adjustable screw of the invention and bolt are provided with 4, are separately positioned on the 4 of support base stationary plane The position at a angle.
Further, fixed plate of the invention is rectangle, is provided with 3, is separately positioned on the position of top and both sides, Gu The length of fixed board is 350-400mm, thickness 18-30mm.
Further, angle steel pawl of the invention is provided with two, respectively symmetrically installed in pipeline mating interface the latter half Both sides.
The present invention provides a kind of steel construction large-diameter pipeline butt welding construction method of installation, and this method includes following step Suddenly:
Step 1: after the completion for the treatment of base for supporting pipeline construction, start the group between support base stationary plane and support base lifting face Adjusting screw and bolt are filled, face over-assemble sliding rail is lifted in support base, horizontal direction displacement is carried out by sliding rail Control, the control of vertical direction displacement is carried out by adjusting screw and bolt, achievees the purpose that mating interface angle adjusts;Then The pipe laying stent on sliding rail, support of pipelines are used for support pipeline, are placed on sliding rail, are thus assembled into adjustable Length of tubing bracket steel construction load bearing system;
Step 2: in group to preceding, plate is welded and fixed on the outside of pipeline to be docked, fixed plate is welded in horizontal direction respectively Both sides and top side, are controlled misalignment in docking operation, and part closed interface is carried out to the welding of butt weld, Pass through the adjusting of sliding rail and adjustable screw and bolt realization to support of pipelines during this;
Step 3: after the completion of fixed plate welding, in docking insides of pipes welding angle steel pawl;
Step 4: after angle steel pawl has welded, wedge block is squeezed into angle steel pawl along to interface, passes through angle steel pawl and wedge shape The effect of block realizes the control of mating interface into the adjustment of line interface localized undercut;
Step 5: after pipe joint adjustment docking, into the welding inside and outside line interface;After welding, you can from angle Wedge block is knocked out in steel pawl, and knocks out fixed plate, in the construction for the docking of next segment pipe.
The beneficial effect comprise that:The steel construction large-diameter pipeline butt welding erecting device of the present invention and construction Method, in large-diameter pipeline docking operation, by adjusting pipeline bracket, to adjust large-diameter pipeline docking angle, significantly Improve the precision of pipeline docking;It is local into line interface by the effect of angle steel pawl and wedge block in the large-diameter pipeline of docking The adjustment of undercut, and allow the docking of steel construction large-diameter pipeline efficiently can accurately dock success by the way that gad perforation is fixed, from And increase the efficiency and precision of large-diameter pipeline docking;This construction method is taken, can not only be reached on the cycle of construction Shorten the effect of the duration of large-diameter pipeline construction, moreover it is possible to save certain construction cost.
Brief description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing:
Fig. 1 is the adjustable large-diameter pipeline docking structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the adjustable pipeline bracket schematic diagram of the embodiment of the present invention;
Fig. 3 is the embodiment of the present invention to interface angle steel pawl and fixed plate schematic diagram;
In figure:1- base for supporting pipeline;2- adjustable screws and bolt;3- sliding rails;4- supports of pipelines;5- fixed plates; 6- angle steel pawls;7- wedge blocks;101- support base stationary planes;102- support bases lift face;103- support base fixed frames.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not For limiting the present invention.
As shown in Figure 1, the steel construction large-diameter pipeline butt welding erecting device of the embodiment of the present invention, the device are symmetrically pacified On the cylinder 8 of two pending pipeline abutting joints, base for supporting pipeline 1, adjustable screw are mounted on each cylinder 8 And bolt 2, sliding rail 3 and support of pipelines 4;Wherein:
Base for supporting pipeline 1 includes support base stationary plane 101, support base lifting face 102 and support base fixed frame 103, support Seat stationary plane 101 is horizontally arranged on cylinder 8, and is supported fixation by support base fixed frame 103;Adjustable screw and spiral shell Bolt 2 is arranged between support base stationary plane 101 and support base lifting face 102, by controlling adjustable screw and bolt 2 to realize branch Support the raising and lowering in seat lifting face 102;Sliding rail 3 is fixed on support base lifting face 102, and support of pipelines 4 is set On sliding rail 3, the horizontal motion of support of pipelines 4 is realized by sliding rail 3;
The device further includes the fixed plate 5 for the welding junction outer fix for being arranged on two pipelines, and is arranged on welding Angle steel pawl 6 on the inside of interface, is provided with wedge block 7 in angle steel pawl 6;By the effect of angle steel pawl 6 and wedge block 7 into line interface office The adjustment of portion's undercut, after the completion of adjustment docking, knocks out wedge block 7 from angle steel pawl 6.
Adjustable screw and bolt 2 are provided with 4, are separately positioned on the position at 4 angles of support base stationary plane 101.Gu Fixed board 5 is rectangle, is provided with 3, is separately positioned on the position of top and both sides, and the length of fixed plate 5 is 350-400mm, thick Spend for 18-30mm.Angle steel pawl 6 is provided with two, respectively symmetrically installed in the both sides of pipeline mating interface the latter half.
The steel construction large-diameter pipeline butt welding construction method of installation of the embodiment of the present invention, this method include following step Suddenly:
Step 1:After the completion for the treatment of base for supporting pipeline construction, start in bottom plate over-assemble adjusting screw and bolt, slide rail Road, the control of horizontal direction displacement is carried out by sliding rail, and the control of vertical direction displacement is carried out by adjusting screw and bolt System, achievees the purpose that mating interface angle adjusts;Then the pipe laying stent on sliding rail, support of pipelines are used for support pipe Road, is placed on sliding rail, is thus assembled into adjustable pipeline bracket steel construction load bearing system;
Step 2:In group to preceding, plate is welded and fixed on the outside of pipeline to be docked, fixed plate is rectangle, length can be 350~ 400mm, can be able to be highly 18~30mm for 120~150mm, thickness.Fixed plate is welded in horizontal direction both sides and top respectively Portion side, controls roughly misalignment in docking operation, and part closed interface is carried out to the welding of butt weld, herein mistake Coordinate the adjusting of the sliding rail and adjustable screw and bolt of pipeline bracket in journey, improve merging precision, realize rapidly and efficiently Docking;
Step 3:After the completion of fixed plate welding, in docking insides of pipes welding equal leg angle pawl, angle steel specification can be ∠ 70*70*8.When pipe diameter is 1500~3000mm, angle steel pawl is welded to 1/4 equally divided position of interface lower half side in pipeline respectively; When pipe diameter is 3000~4500mm, angle steel pawl is welded to 1/5 equally divided position of interface lower half side in pipeline respectively;
Step 4:After angle steel pawl has welded, wedge block is squeezed into angle steel pawl along to interface, wedge block can be by angle steel system Form, along the side chamfers such as two, the small afterbody in head is big, ensures that head can be squeezed into angle steel pawl, afterbody is more than the aperture of angle steel pawl. By the effect of angle steel pawl and wedge block into the adjustment of line interface localized undercut, the precision of mating interface is set to be effectively controlled;
Step 5:After pipe joint adjustment docking, into the welding inside and outside line interface.After welding, you can from angle Wedge block is knocked out in steel pawl, and knocks out fixed plate, in the construction for the docking of next segment pipe.
Innovative point:
1st, in large-diameter pipeline docking operation, by adjusting pipeline bracket, to adjust large-diameter pipeline docking angle, Substantially increase the precision of pipeline docking.
2nd, in the large-diameter pipeline of docking, the adjustment by the effect of angle steel pawl and wedge block into line interface localized undercut, And allow the docking of steel construction large-diameter pipeline efficiently can accurately dock success by the way that gad perforation is fixed, so as to increase major diameter The efficiency and precision of pipeline docking.
3rd, this construction method is taken, the duration for shortening large-diameter pipeline construction can be not only reached on the cycle of construction Effect, moreover it is possible to save certain construction cost.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted, And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.

Claims (5)

1. a kind of steel construction large-diameter pipeline butt welding erecting device, it is characterised in that the device is symmetrically mounted on two and treats On the cylinder (8) for carrying out pipeline abutting joint, base for supporting pipeline (1), adjustable screw and spiral shell are mounted on each cylinder (8) Bolt (2), sliding rail (3) and support of pipelines (4);Wherein:
Base for supporting pipeline (1) includes support base stationary plane (101), support base lifting face (102) and support base fixed frame (103), Support base stationary plane (101) is horizontally arranged on cylinder (8), and is supported fixation by support base fixed frame (103);It is adjustable Section screw rod and bolt (2) are arranged between support base stationary plane (101) and support base lifting face (102), adjustable by controlling Screw rod and bolt (2) realize the raising and lowering of support base lifting face (102);Sliding rail (3) is fixed at support base liter On drop face (102), support of pipelines (4) is arranged on sliding rail (3), and the water of support of pipelines (4) is realized by sliding rail (3) Square to movement;
The device further includes the fixed plate (5) for the welding junction outer fix for being arranged on two pipelines, and is arranged on welding and connects Angle steel pawl (6) on the inside of mouthful, angle steel pawl (6) is interior to be provided with wedge block (7);By the effect of angle steel pawl (6) and wedge block (7) into The adjustment of line interface localized undercut, after the completion of adjustment docking, knocks out wedge block (7) from angle steel pawl (6).
2. steel construction large-diameter pipeline butt welding erecting device according to claim 1, it is characterised in that adjustable spiral shell Bar and bolt (2) are provided with 4, are separately positioned on the position at 4 angles of support base stationary plane (101).
3. steel construction large-diameter pipeline butt welding erecting device according to claim 1, it is characterised in that fixed plate (5) it is rectangle, is provided with 3, be separately positioned on the position of top and both sides, the length of fixed plate (5) is 350-400mm, thick Spend for 18-30mm.
4. steel construction large-diameter pipeline butt welding erecting device according to claim 1, it is characterised in that angle steel pawl (6) two are provided with, respectively symmetrically installed in the both sides of pipeline mating interface the latter half.
5. a kind of steel construction large-diameter pipeline butt welding construction method of installation, it is characterised in that this method comprises the following steps:
Step 1: after the completion for the treatment of base for supporting pipeline construction, starting between support base stationary plane and support base lifting face assembling can Screw rod and bolt are adjusted, face over-assemble sliding rail is lifted in support base, the control of horizontal direction displacement is carried out by sliding rail, The control of vertical direction displacement is carried out by adjusting screw and bolt, achievees the purpose that mating interface angle adjusts;Then in cunning Pipe laying stent on dynamic rail road, support of pipelines are used for support pipeline, are placed on sliding rail, are thus assembled into adjustable pipe Road bracket steel construction load bearing system;
Step 2: in group to preceding, plate is welded and fixed on the outside of pipeline to be docked, fixed plate is welded in horizontal direction both sides respectively And top side, misalignment is controlled in docking operation, and part closed interface is carried out to the welding of butt weld, herein mistake Pass through the adjusting of sliding rail and adjustable screw and bolt realization to support of pipelines in journey;
Step 3: after the completion of fixed plate welding, in docking insides of pipes welding angle steel pawl;
Step 4: after angle steel pawl has welded, wedge block is squeezed into angle steel pawl along to interface, passes through angle steel pawl and wedge block The adjustment into line interface localized undercut is acted on, realizes the control of mating interface;
Step 5: after pipe joint adjustment docking, into the welding inside and outside line interface;After welding, you can from angle steel pawl In knock out wedge block, and fixed plate is knocked out, in the construction for the docking of next segment pipe.
CN201711237651.2A 2017-11-30 2017-11-30 A kind of steel construction large-diameter pipeline butt welding erecting device and construction method Pending CN107931944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711237651.2A CN107931944A (en) 2017-11-30 2017-11-30 A kind of steel construction large-diameter pipeline butt welding erecting device and construction method

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Application Number Priority Date Filing Date Title
CN201711237651.2A CN107931944A (en) 2017-11-30 2017-11-30 A kind of steel construction large-diameter pipeline butt welding erecting device and construction method

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CN107931944A true CN107931944A (en) 2018-04-20

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108817720A (en) * 2018-06-29 2018-11-16 中国二十冶集团有限公司 The fast junction apparatus and its construction method of round tube
CN109048194A (en) * 2018-09-28 2018-12-21 北京首钢建设集团有限公司 A kind of method that pipeline looks for mouth to dock using bquster
CN110238481A (en) * 2019-06-25 2019-09-17 湖州东科电子石英有限公司 A kind of welding procedure of the big pipe of isometrical quartz
CN111390420A (en) * 2020-04-16 2020-07-10 吴丹 Construction method for factory waste gas treatment engineering
CN111496447A (en) * 2020-05-15 2020-08-07 中冶天工集团天津有限公司 Fastening device for steel plate lap joint paving and operation method
CN111958259A (en) * 2020-09-04 2020-11-20 成都市岷江自来水厂双流聚乙烯管材生产车间 Angle-adjustable pipeline butt joint device and elbow butt joint method
CN112605624A (en) * 2020-12-03 2021-04-06 上海二十冶建设有限公司 Rapid installation method for coiled pipeline
CN113477754A (en) * 2021-06-16 2021-10-08 五冶集团上海有限公司 Roundness correction method for large-diameter thin-wall steel pipe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447708A (en) * 2013-09-22 2013-12-18 卢长兴 Method of preventing welding deformation of steel plate base for steel structure having steel plate base
CN104355267A (en) * 2014-10-29 2015-02-18 四川华铁钢结构有限公司 Steel jacking and conveying device
CN104625553A (en) * 2014-12-26 2015-05-20 中国核工业二三建设有限公司 Tool for adjusting alignment tolerance of welding junction assembly
CN205218368U (en) * 2015-11-05 2016-05-11 山东豪迈机械制造有限公司 Slow -speed shaft group is to device
WO2017120665A1 (en) * 2016-01-15 2017-07-20 1935111 Alberta Ltd. Pipe spacing wedge systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447708A (en) * 2013-09-22 2013-12-18 卢长兴 Method of preventing welding deformation of steel plate base for steel structure having steel plate base
CN104355267A (en) * 2014-10-29 2015-02-18 四川华铁钢结构有限公司 Steel jacking and conveying device
CN104625553A (en) * 2014-12-26 2015-05-20 中国核工业二三建设有限公司 Tool for adjusting alignment tolerance of welding junction assembly
CN205218368U (en) * 2015-11-05 2016-05-11 山东豪迈机械制造有限公司 Slow -speed shaft group is to device
WO2017120665A1 (en) * 2016-01-15 2017-07-20 1935111 Alberta Ltd. Pipe spacing wedge systems

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108817720A (en) * 2018-06-29 2018-11-16 中国二十冶集团有限公司 The fast junction apparatus and its construction method of round tube
CN109048194A (en) * 2018-09-28 2018-12-21 北京首钢建设集团有限公司 A kind of method that pipeline looks for mouth to dock using bquster
CN110238481A (en) * 2019-06-25 2019-09-17 湖州东科电子石英有限公司 A kind of welding procedure of the big pipe of isometrical quartz
CN111390420A (en) * 2020-04-16 2020-07-10 吴丹 Construction method for factory waste gas treatment engineering
CN111390420B (en) * 2020-04-16 2021-11-23 湖南恒光化工有限公司 Construction method for factory waste gas treatment engineering
CN111496447A (en) * 2020-05-15 2020-08-07 中冶天工集团天津有限公司 Fastening device for steel plate lap joint paving and operation method
CN111958259A (en) * 2020-09-04 2020-11-20 成都市岷江自来水厂双流聚乙烯管材生产车间 Angle-adjustable pipeline butt joint device and elbow butt joint method
CN112605624A (en) * 2020-12-03 2021-04-06 上海二十冶建设有限公司 Rapid installation method for coiled pipeline
CN113477754A (en) * 2021-06-16 2021-10-08 五冶集团上海有限公司 Roundness correction method for large-diameter thin-wall steel pipe

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Application publication date: 20180420

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