CN103883132A - Method for assembling upper and lower seal heads of nuclear power containment and jig frame structure - Google Patents

Method for assembling upper and lower seal heads of nuclear power containment and jig frame structure Download PDF

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Publication number
CN103883132A
CN103883132A CN201410143778.8A CN201410143778A CN103883132A CN 103883132 A CN103883132 A CN 103883132A CN 201410143778 A CN201410143778 A CN 201410143778A CN 103883132 A CN103883132 A CN 103883132A
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China
Prior art keywords
zone
pillar
coverboard
central post
locating piece
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Granted
Application number
CN201410143778.8A
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Chinese (zh)
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CN103883132B (en
Inventor
周大杰
刘旭东
殷国东
沈鏖
徐航
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Shenyang Industrial Installation Engineering Co Ltd
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Shenyang Industrial Installation Engineering Co Ltd
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Priority to CN201410143778.8A priority Critical patent/CN103883132B/en
Publication of CN103883132A publication Critical patent/CN103883132A/en
Application granted granted Critical
Publication of CN103883132B publication Critical patent/CN103883132B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a method for assembling upper and lower seal heads of a nuclear power containment and a jig frame structure. Annular supporting columns and a center column are utilized to fix and adjust a containment body so that the upper and lower seal heads can be installed. The type of an upper segment and a lower segment is adopted for each supporting column, and the hydraulic adjusting mode is adopted for the lower segments of the supporting columns so that the construction requirements of the containment can be met. The mode for adjusting a containment board through the center column is faster, more convenient and more effective, meanwhile, the supporting column supporting structure is simpler and more efficient, and a large amount of time cost and economic cost can be saved.

Description

Low head assemble method and jig structure on a kind of Nuclear Safety shell
Technical field
The present invention relates to industrial mounting technique field, is a kind of nuclear power housing assemble method and jig structure specifically.
Background technology
CV containment is made up of bottom (head), bottom cylindrical shell, middle cylinder, top cylindrical shell and the large assembly of cover head 5, and material is SA738GrB.The main difficult point of installing is in the assembling of upper low head, and upper low head internal diameter is 39624mm, height 11468mm, and the about 575T of each end socket, by 4 band compositions, every band Spherical Tank Shell Plates quantity is followed successively by 2,6,24 and 32, the about 10.5T of maximum veneer weight.Because end socket diameter is large, Spherical Tank Shell Plates quantity is many, adopts in the past assembled moulding bed assemble method, uses some supporting legs, mesa-shaped to reticulate support, then the coverboard of containment is spliced on moulding bed, utilizes the ball pivot adjuster on support to adjust coverboard attitude, completes installation.The moulding bed complexity of this method, exists that difficulty of construction is large, the cycle is long, high cost shortcoming, and adjusting device is because plate is overweight, often occurs regulating difficulty, the situation that even cannot regulate.Similar technology is the assembled moulding bed of a kind of AP1000 nuclear power dome as Chinese Patent Application No. 201320240731.4 discloses, and comprises the concrete foundation along whole circumferential arrangement that supports the inner ring column along whole circumferential arrangement of dome ring beam, the outer ring column along whole circumferential arrangement that supports dome radial girders one end, the support dome radial girders other end.Inner ring column and outer ring column form by two sections vertically, after dome body is assembled, the upper semisection of inner ring column and outer ring column are removed, and inner ring column is connected by supporting bracket with the lower semisection of outer ring column; Supporting bracket is connected with dome module.This technology adopts double-deck column, and cost is high, complex structure.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide low head assemble method and jig structure on a kind of Nuclear Safety shell, concrete technical scheme is as follows:
Low head assemble method on a kind of Nuclear Safety shell, comprises the steps:
One. low head assemble method:
1) assemble annular lower supporting rod braced structures;
Stone bolt is set on stanchion base, and pillar lower bolster is opened slotted hole, is convenient to adjust pillar position, uses sky to hang and erects pillar cylinder lever connecting rod, forms closed loop cirque structure;
2) erect central post;
Erect central post at annular brace center, central post divides two sections, with bolts, and upper central post arranges multiple hangers, and lower end mat and ground slugging guarantee stability;
3) unwrapping wire; Total powerstation is set at the scene, measures pillar position and adjust pillar position by the tight knot on pull bar, behind location, pillar lower bolster is welded fixing;
4) group is to equatorial zone; First be assembled with the coverboard of pier construction, then insert without pillar coverboard, and use locating piece locking, to gap, repeat above step by the chock adjustment group on locating piece, until equatorial zone closure;
5) group is to lower temperate zone; Use sky to hang lower temperate zone coverboard is lifted into precalculated position, connect dilatory rope between lower temperate zone coverboard and central post, adjust coverboard angle, after putting in place, be connected with equatorial zone with locating piece; After first coverboard is in place, the coverboard of adjacent position is installed, is adopted the method identical with first, be in placely connected with equatorial zone and lastblock coverboard afterwards; Repeat above step, until lower temperate zone closure; After lower temperate zone closure, by adjusting the chock on locating piece, adjustment group, to gap, is all drawn rope in qualified rear dismounting lower temperate zone;
6) group is to the dilatory rope in lower frigid zone and dismounting lower frigid zone; Assemble method is identical with lower temperate zone;
7) remove central post; After lower frigid zone is installed and finished, by central post dismounting, divide two sections and hang dismounting with sky;
8) group is to bottom crown; After central post is removed, using sky to hang bottom crown hoisted in position, is to lock with locating piece after adjusting to the right place; Same method is installed another piece bottom crown;
9) check assembled size, adjust seam; After overall package is in place, check integral assembling size, by the chock adjustment group on locating piece to gap, appearance and size, qualified rear preparation welding;
10) connection transportation support, jacking end socket, removes all the other pillars, transportation;
Two. upper cover assemble method
Adopt annular pillar and the central post identical with low head pillar, comprise the steps:
1) group is to equatorial zone; Group is to the front backing plate with the identical material of coverboard with the welding of coverboard inner side under the line, on backing plate, weld afterwards epimere pillar, the equatorial zone coverboard that has welded epimere pillar is installed on hypomere pillar, the equator zone plate of adjacent struts is installed again, the middle not equator zone plate with epimere pillar of finally grafting, and, location fastening by locating piece, repeat above step, until equatorial zone closure;
2) assembling upper temperature zone, upper frigid zone and top crown; Assembling mode is identical with low head, hangs with dilatory coordinating of restricting and locates with sky, adjusts assembly clearance by the chock of locating piece.
The present invention further discloses the jig structure of realizing described method, comprise annular the lower supporting rod braced structures arranging and the central post that is arranged on annular center position, described lower supporting rod braced structures comprises drag link, diagonal member, support column, and described support column is made up of hypomere pillar, epimere pillar; Described hypomere pillar is hydraulic lifting structure, and described drag link connects two adjacent support columns, and described diagonal member is diagonal angle form with two adjacent support columns and is connected; Described central post divides two sections, with bolts, and upper central post arranges multiple hangers, and lower end mat and ground slugging guarantee stability.
Described support column quantity is 16.
Described connection hanger quantity is 24.
Advantage of the present invention is: the present invention can meet the requirement of containment construction, and the mode of employing central post adjusting coverboard can be more convenient effective, and shore supports structure is more simple efficient simultaneously, can save a large amount of time costs and financial cost.
Accompanying drawing explanation
Fig. 1 is containment structure schematic diagram;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is annular lower supporting rod braced structures;
Rod structure centered by Fig. 4;
Fig. 5 is equatorial zone scheme of installation;
Fig. 6 is lower temperate zone scheme of installation;
Fig. 7 is lower frigid zone scheme of installation;
Fig. 8 is transportation schematic diagram;
Fig. 9 is upper cover equatorial zone scheme of installation;
In figure, 1 is equatorial zone, 2 upper temperature zones, 3 is upper frigid zone, and 4 is upper utmost point band, and 5 is lower temperate zone, 6 is lower frigid zone, and 7 is lower utmost point band, and 8 is annular lower supporting rod braced structures, 81 is epimere pillar, and 82 is hypomere pillar, and 83 is drag link, 84 is diagonal member, post centered by 9, and 91 for connecting hanger, 92 is bolt, and 101 is hoist cable, and 811 is backing plate.
The specific embodiment
Illustrate the present invention below in conjunction with accompanying drawing, as shown in Figure 1, housing can be divided into following components: upper cover is equatorial zone, upper temperature zone, upper frigid zone, upper utmost point band, and low head is equatorial zone, lower temperate zone, lower frigid zone, lower utmost point band; As shown in Figure 2, each band is by the housing composition of varying number;
As shown in Figure 3 and Figure 4, jig structure comprises the lower supporting rod braced structures that annular arranges and is arranged on the central post of annular center position, described lower supporting rod braced structures comprises drag link, diagonal member, support column, and described support column is made up of hypomere pillar, epimere pillar; Described hypomere pillar is hydraulic lifting structure, and described drag link connects two adjacent support columns, and described diagonal member is diagonal angle form with two adjacent pillars and is connected; Described central post divides two sections, with bolts, and upper central post arranges multiple rigidity adjusting yokes and connects hanger, and lower end mat and ground slugging guarantee stability.Central post segment design can make the amount of deflection of steel column reduce, and is convenient to remove simultaneously.
In the present embodiment, described support column quantity is 16, and described connection hanger quantity is 24.According to different housing quantity, can make the appropriate adjustments.
As shown in Figure 5-Figure 8, the main construction process of low head comprises:
The annular lower supporting rod braced structures of 1.1 assembling.Stone bolt is set on stanchion base, and pillar lower bolster is opened slotted hole, is convenient to adjust pillar position, uses sky to hang and erects pillar cylinder lever connecting rod, forms closed loop cirque structure.
1.2 erect central post.Erect central post at annular brace center.Central post divides two sections, with bolts, and upper central post arranges 24 dilatory ropes and connects hanger, and lower end mat and ground slugging, guarantee stability.
1.3 unwrapping wire.Total powerstation is set at the scene, measures pillar position and adjust pillar position by the tight knot on pull bar, behind location, pillar lower bolster is welded fixing.
1.4 groups to equatorial zone.First be assembled with the coverboard of pier construction, then insert without pillar coverboard, and use locating piece locking, to gap, repeat above step by the chock adjustment group on locating piece, until leukorrhea with bloody discharge closure.
1.5 groups to lower temperate zone.Use sky to hang lower temperate zone coverboard is lifted into precalculated position, connect dilatory rope between lower temperate zone coverboard and central post, adjust coverboard angle with Chain block, after putting in place, be connected with equatorial zone with locating piece.After first coverboard is in place, the coverboard of adjacent position is installed, is adopted the method identical with first, be in placely connected with equatorial zone and lastblock coverboard afterwards.Repeat above step, until lower temperate zone closure.
1.6 remove the dilatory rope of lower temperate zone.After lower temperate zone closure, by adjusting the chock on locating piece, adjustment group, to gap, is all drawn rope in qualified rear dismounting lower temperate zone.
1.7 groups to the dilatory rope in lower frigid zone and dismounting lower frigid zone.Assemble method is identical with lower temperate zone.
1.8 remove central post.After lower frigid zone is installed and finished, by central post dismounting, divide two sections and hang dismounting with sky.
1.9 groups to bottom crown.After central post is removed, using sky to hang bottom crown hoisted in position, with the Chain block adjustment on lifting rope, is to lock with locating piece after putting in place.Same method is installed another piece bottom crown.
1.10 check assembled size, tune seam.After overall package is in place, check integral assembling size, by the chock adjustment group on locating piece to gap, appearance and size, qualified rear preparation welding.
1.11 considerations about transportation.As Fig. 8, black round dot is expressed as the pillar with hydraulic structure, after integral solder finishes, utilize hydraulic means to remove on these four pillars, guarantee that haulage vehicle enters, in figure, arrow represents haulage vehicle and support approach axis, connection transportation support afterwards, jacking end socket, removes all the other pillars, transportation.
The main construction process of 2 upper cover
Adopt annular pillar and the central post identical with low head pillar, comprise the steps:
1) group is to equatorial zone; As shown in Figure 9, group is to the front backing plate with the identical material of coverboard with the welding of coverboard inner side under the line, on backing plate, weld afterwards upper supporting column, the equatorial zone coverboard that has welded upper supporting column is installed in lower supporting rod braced structures, the equator zone plate of adjacent struts is installed again, the middle not equator zone plate with upper supporting column of finally pegging graft, and, location fastening by locating piece, repeat above step, until equatorial zone closure.On pillar, separately establish inclined support structure, can help coverboard location, equatorial zone and anti-deformation.
2) assembling upper temperature zone, upper frigid zone and top crown; Assembling mode is identical with low head, hangs with dilatory coordinating of restricting and locates with sky, adjusts assembly clearance by the chock of locating piece.

Claims (4)

1. a low head assemble method on Nuclear Safety shell, is characterized in that comprising the steps:
One. low head assemble method:
1) assemble annular lower supporting rod braced structures;
Stone bolt is set on stanchion base, and pillar lower bolster is opened slotted hole, is convenient to adjust pillar position, uses sky to hang and erects pillar cylinder lever connecting rod, forms closed loop cirque structure;
2) erect central post;
Erect central post at annular brace center, central post divides two sections, with bolts, and upper central post arranges multiple hangers, and lower end mat and ground slugging guarantee stability;
3) unwrapping wire; Total powerstation is set at the scene, measures pillar position and adjust pillar position by the tight knot on pull bar, behind location, pillar lower bolster is welded fixing;
4) group is to equatorial zone; First be assembled with the coverboard of pier construction, then insert without pillar coverboard, and use locating piece locking, to gap, repeat above step by the chock adjustment group on locating piece, until equatorial zone closure;
5) group is to lower temperate zone; Use sky to hang lower temperate zone coverboard is lifted into precalculated position, connect dilatory rope between lower temperate zone coverboard and central post, adjust coverboard angle, after putting in place, be connected with equatorial zone with locating piece; After first coverboard is in place, the coverboard of adjacent position is installed, is adopted the method identical with first, be in placely connected with equatorial zone and lastblock coverboard afterwards; Repeat above step, until lower temperate zone closure; After lower temperate zone closure, by adjusting the chock on locating piece, adjustment group, to gap, is all drawn rope in qualified rear dismounting lower temperate zone;
6) group is to the dilatory rope in lower frigid zone and dismounting lower frigid zone; Assemble method is identical with lower temperate zone;
7) remove central post; After lower frigid zone is installed and finished, by central post dismounting, divide two sections and hang dismounting with sky;
8) group is to bottom crown; After central post is removed, using sky to hang bottom crown hoisted in position, is to lock with locating piece after adjusting to the right place; Same method is installed another piece bottom crown;
9) check assembled size, adjust seam; After overall package is in place, check integral assembling size, by the chock adjustment group on locating piece to gap, appearance and size, qualified rear preparation welding;
10) connection transportation support, jacking end socket, removes all the other pillars, transportation;
Two. upper cover assemble method
Adopt annular pillar and the central post identical with low head pillar, comprise the steps:
1) group is to equatorial zone; Group is to the front backing plate with the identical material of coverboard with the welding of coverboard inner side under the line, on backing plate, weld afterwards epimere pillar, the equatorial zone coverboard that has welded epimere pillar is installed on hypomere pillar, the equator zone plate of adjacent struts is installed again, the middle not equator zone plate with epimere pillar of finally grafting, and, location fastening by locating piece, repeat above step, until equatorial zone closure;
2) assembling upper temperature zone, upper frigid zone and top crown; Assembling mode is identical with low head, hangs with dilatory coordinating of restricting and locates with sky, adjusts assembly clearance by the chock of locating piece.
2. realize the jig structure of method described in claim 1 for one kind, it is characterized in that: comprise annular the lower supporting rod braced structures arranging and the central post that is arranged on annular center position, described lower supporting rod braced structures comprises drag link, diagonal member, support column, and described support column is made up of hypomere pillar, epimere pillar; Described hypomere pillar is hydraulic lifting structure, and described drag link connects two adjacent support columns, and described diagonal member is diagonal angle form with two adjacent support columns and is connected; Described central post divides two sections, with bolts, and upper central post arranges multiple hangers, and lower end mat and ground slugging guarantee stability.
3. structure according to claim 2, is characterized in that: described support column quantity is 16.
4. structure according to claim 2, is characterized in that: described connection hanger quantity is 24.
CN201410143778.8A 2014-04-11 2014-04-11 Low head assemble method and jig structure on a kind of Nuclear Safety shell Expired - Fee Related CN103883132B (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105014251A (en) * 2015-08-12 2015-11-04 上海核工程研究设计院 Auxiliary equipment
CN105133881A (en) * 2015-09-10 2015-12-09 中核能源科技有限公司 Modular construction method for high temperature gas cooled reactor nuclear power plant containment bracket section wall
CN106013815A (en) * 2016-05-24 2016-10-12 中国核工业二三建设有限公司 Installation tool and method for short supporting legs of bottom head of steel containment vessel of nuclear power station
CN106141476A (en) * 2016-07-22 2016-11-23 中国化学工程第三建设有限公司 A kind of super-large diameter is without the assemble method of ribbed stiffener thin-wall semi top seal closure
CN107093472A (en) * 2017-05-03 2017-08-25 中国核工业第五建设有限公司 The assemble method of steel containment vessel and its end socket in AP1000 nuclear power stations
CN107824997A (en) * 2017-10-31 2018-03-23 武汉冶钢结构有限责任公司 The installation method of asymmetric equatorial zone coverboard

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Publication number Priority date Publication date Assignee Title
JPH05287811A (en) * 1992-04-08 1993-11-02 Mamoru Kawaguchi Dome shaped roof structure
CN101967886A (en) * 2010-11-16 2011-02-09 中国核工业第五建设有限公司 Assembly and installation methods of steel containment vessel of nuclear power station
CN102535870A (en) * 2011-12-30 2012-07-04 大连理工大学 Tooling support for assembling and transporting nuclear-power containment-vessel cover head
CN102700870A (en) * 2011-10-11 2012-10-03 国家核电技术有限公司 Seal head module, large container and method for manufacturing seal head module and large container
CN103015737A (en) * 2012-12-28 2013-04-03 中国核工业第五建设有限公司 Method for mounting steel containment cofferdam of nuclear power plant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05287811A (en) * 1992-04-08 1993-11-02 Mamoru Kawaguchi Dome shaped roof structure
CN101967886A (en) * 2010-11-16 2011-02-09 中国核工业第五建设有限公司 Assembly and installation methods of steel containment vessel of nuclear power station
CN102700870A (en) * 2011-10-11 2012-10-03 国家核电技术有限公司 Seal head module, large container and method for manufacturing seal head module and large container
CN102535870A (en) * 2011-12-30 2012-07-04 大连理工大学 Tooling support for assembling and transporting nuclear-power containment-vessel cover head
CN103015737A (en) * 2012-12-28 2013-04-03 中国核工业第五建设有限公司 Method for mounting steel containment cofferdam of nuclear power plant

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105014251A (en) * 2015-08-12 2015-11-04 上海核工程研究设计院 Auxiliary equipment
CN105133881A (en) * 2015-09-10 2015-12-09 中核能源科技有限公司 Modular construction method for high temperature gas cooled reactor nuclear power plant containment bracket section wall
CN105133881B (en) * 2015-09-10 2017-07-07 中核能源科技有限公司 HTGR Nuclear Power Plant containment bracket section wall body module method of construction
CN106013815A (en) * 2016-05-24 2016-10-12 中国核工业二三建设有限公司 Installation tool and method for short supporting legs of bottom head of steel containment vessel of nuclear power station
CN106013815B (en) * 2016-05-24 2019-07-09 中国核工业二三建设有限公司 The short supporting leg mounting tool of steel containment vessel of nuclear power station bottom (head) and installation method
CN106141476B (en) * 2016-07-22 2018-06-29 中国化学工程第三建设有限公司 A kind of assemble method of super-large diameter without ribbed stiffener thin-wall semi top seal closure
CN106141476A (en) * 2016-07-22 2016-11-23 中国化学工程第三建设有限公司 A kind of super-large diameter is without the assemble method of ribbed stiffener thin-wall semi top seal closure
CN107093472A (en) * 2017-05-03 2017-08-25 中国核工业第五建设有限公司 The assemble method of steel containment vessel and its end socket in AP1000 nuclear power stations
CN107093472B (en) * 2017-05-03 2019-03-01 中国核工业第五建设有限公司 The assemble method of steel containment vessel and its end socket in AP1000 nuclear power station
CN107824997A (en) * 2017-10-31 2018-03-23 武汉冶钢结构有限责任公司 The installation method of asymmetric equatorial zone coverboard

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